WO2008053594A1 - Power steering device - Google Patents

Power steering device Download PDF

Info

Publication number
WO2008053594A1
WO2008053594A1 PCT/JP2007/001189 JP2007001189W WO2008053594A1 WO 2008053594 A1 WO2008053594 A1 WO 2008053594A1 JP 2007001189 W JP2007001189 W JP 2007001189W WO 2008053594 A1 WO2008053594 A1 WO 2008053594A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
power steering
steering device
circuit board
base plate
Prior art date
Application number
PCT/JP2007/001189
Other languages
French (fr)
Japanese (ja)
Inventor
Masaki Iijima
Tsugio Yokoo
Kazuyuki Shoji
Chikafumi Sugai
Hiroaki Yokoyama
Masahiro Matsui
Original Assignee
Mitsuba Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2006296468A external-priority patent/JP5155550B2/en
Priority claimed from JP2006296473A external-priority patent/JP2008111806A/en
Priority claimed from JP2006296469A external-priority patent/JP2008111803A/en
Priority claimed from JP2007246999A external-priority patent/JP5184024B2/en
Application filed by Mitsuba Corporation filed Critical Mitsuba Corporation
Publication of WO2008053594A1 publication Critical patent/WO2008053594A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0403—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by constructional features, e.g. common housing for motor and gear box
    • B62D5/0406—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by constructional features, e.g. common housing for motor and gear box including housing for electronic control unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0409—Electric motor acting on the steering column
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/102—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving magnetostrictive means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/221—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to steering wheels, e.g. for power assisted steering

Definitions

  • the present invention belongs to the technical field of a power steering apparatus that drives an electric motor to assist the operating force of the tearing wheel based on the operating force acting on the steering wheel.
  • a torsion bar having one end connected to a steering shaft and the other end connected to an output shaft on the electric motor side, and twisting the torsion bar
  • a torque detection sensor constituted by a detection sensor and controlling the driving of an electric motor based on a detection value of the torque detection sensor.
  • a torque detection sensor a coil casing that is externally fitted to a torsion bar, the amount of magnetic flux of which changes as the torsion bar is twisted, and a change in the amount of magnetic flux of the coil is measured.
  • a plate surface of a sensor circuit board is arranged in parallel to an axis of a coil assembly with respect to a coil assembly that is externally fitted to a torsion bar.
  • Patent Document 1 a coil assembly
  • Patent Document 2 arranged in an extending shape in the outer diameter direction of the coil assembly have been proposed.
  • Patent Document 1 Japanese Patent Laid-Open No. 2 0 0 _ 3 5 3 1 9
  • Patent Document 2 WO 2 0 0 4-0 0 9 4 2 4
  • the coil detection sensor includes a power steering device that is integrally attached to a proximal end portion of the steering shaft.
  • the coil assembly is externally fitted to the output shaft for externally fitting the torsion bar in a movement-restricted state
  • the sensor circuit board is a board formed in the housing. It is configured to be fixed to the receiving part. For this reason, since the coil assembly and the sensor circuit board are individually arranged, the assembling work is troublesome, and the winding and the sensor circuit drawn from the coil assembly after each of these members is assembled. A connection work between the circuit board and the board is required. However, the work is difficult and cumbersome, forceful, and cumbersome, and there is a problem that workability is lowered. There are challenges.
  • the present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 detects the rotational torque of the steering shaft and detects the steering shaft.
  • a power steering device that assists the rotation of the cocoon based on the rotation of the electric motor
  • a torsion bar with one end fixed to the steering shaft and the other end fixed to the output shaft on the electric motor side, and an external fit to the torsion bar
  • a sensor circuit board that detects a magnetic change of the coil assembly and a sensor circuit board that detects the magnetic change of the coil assembly.
  • a cylindrical opening of said cover member, a power steering device configured to Sensaasshi one incorporated into sensor circuit base plate substrate is incorporated.
  • the invention according to claim 2 is the power steering device according to claim 1, wherein the sensor assembly is fixed to the housing of the power steering device via a base plate.
  • the base plate includes an extending plate portion that extends in a direction perpendicular to the axial center of the coil assembly, and the sensor circuit board is disposed on the extending plate portion to be coiled. Configured to be located in one outer diameter direction.
  • the invention according to claim 4 is the power steering apparatus according to any one of claims 1 to 3, wherein the base plate has a reinforcing portion formed in the vicinity of the coil assembly disposition site.
  • the invention according to claim 5 is the base plate according to any one of claims 2 to 4, wherein the base plate is mounted with the surface on the sensor circuit board mounting side facing the assembly mounting portion formed in the housing. Power steering device.
  • the sensor circuit board includes an adjustable electronic component, and the base plate has an opening for adjusting the electronic component. It is a power steering device given in any 1 paragraph.
  • the pair of coil units constituting the coil assembly includes a coil pobbin wound with windings in a cylindrical coil yoke, and a pair of pin bodies connected to both ends of the coil are coiled.
  • the coil unit is configured to protrude from the outer periphery of the yoke with a gap in the circumferential direction, and these coil units are displaced in the circumferential direction and stacked in the axial direction, and are embedded in the cover body.
  • the pair of pin bodies protruding in the outer diameter direction from each other has a circumferential gap formed between the pin bodies, and the conductive plate is placed on the sensor circuit board arranged parallel to the protruding direction of the pin bodies.
  • the conductive plate is formed of a pair of leg pieces and a connecting piece for connecting these leg pieces by bending a long plate material into a U shape, one leg piece and the pin body, the other
  • the invention according to claim 9 is the invention according to claim 8, wherein the other leg piece of the conductive plate penetrates the board and protrudes to the surface of the board on which the pin body is disposed, and the protruding end is soldered. This is a power steering device.
  • the pair of coil units constituting the coil assembly is
  • the coil pobin around which the windings are wound is incorporated in a cylindrical coil yoke, and one coil portion of each coil yoke tube portion or the cover integral tube portion protrudes toward the other tube portion side.
  • the material of the cylindrical portion on the side where the cut and raised pieces are formed is formed of a material having higher hardness than the material of the cylindrical portion on the side where the cut and raised pieces are not formed. It is a power steering device as described in above.
  • the cut and raised pieces are formed on the coil yokes of the respective coil units, and the positions of the cut and raised pieces are shifted from each other in the circumferential direction so that the force yokes are integrated.
  • the coil yoke when the cut and raised piece is formed in the coil yoke, the coil yoke is formed to include a cylindrical portion having a predetermined plate thickness, and a predetermined diameter direction of the cylindrical portion is defined as a reference line. Is located on the cylinder outer peripheral surface corresponding to the range between the tangent at the intersection of the reference line and the cylinder inner diameter and the tangent at the intersection of the reference line and the cylinder outer diameter, The power steering apparatus according to any one of claims 10 to 12, wherein the cut and raised pieces are formed based on orthogonal cut and raised directions.
  • the coil assembly has a projecting piece formed to project toward the cylinder length direction at the opening end integrated with the cover so as to freely pass through the mounting hole provided in the base spray bowl,
  • the penetrating end portion of the protruding piece is fixed to the base plate by a caulking means, and the caulking means uses a force caulking tool composed of at least one tooth tip, and the tooth tip is inserted into the penetrating end portion of the protruding piece. Clamping with a predetermined inclination angle with respect to the longitudinal direction of the 14.
  • the invention according to claim 15 is characterized in that the penetrating end portion of the protruding piece is configured to be force-squeezed using a plurality of tooth tips, and the tooth tips are provided in parallel to each other. It is a steering device.
  • the number of parts can be reduced, the assembly work can be performed smoothly and easily, and the connection work between the coil assembly after assembly and the sensor circuit board can be made unnecessary. And improve reliability.
  • the invention of claim 3 can contribute to compactness.
  • adjustment parts can be adjusted from the base plate side, and adjustment work can be easily performed even after the sensor assembly is assembled in the housing.
  • the pin body and the conductive plate can be easily assembled and soldering work can be facilitated.
  • the number of soldering steps can be reduced, which can contribute to cost reduction.
  • the coil unit cover can be integrated. Although the displacement in the circumferential direction can be restricted, the configuration can be simplified and the number of parts can be reduced, so that a highly reliable / warter steering device can be obtained. Stable fixing force to the coil unit cover can be obtained.
  • the fixing force of each coil unit to the cover body can be obtained in the same manner in a stable and non-uniform state.
  • the influence of the coil assembly on the magnetic circuit can be reduced.
  • the backlash of the cover body can be regulated more reliably.
  • FIG. 1 is a schematic perspective view for explaining a mounting state of a power steering device.
  • FIG. 2 is a rear view of the power steering device.
  • FIG. 3 is a cross-sectional view of a power steering device.
  • FIGS. 4 (A) and 4 (B) are a side view of the sensor assembly and an X_X cross-sectional view of FIG. 4 (A), respectively.
  • FIGS. 5 (A) and 5 (B) are a side view of the coil unit and an X_X sectional view of FIG. 5 (A), respectively.
  • Fig.6 are a plan view, side view, and X-X cross section of Fig.6 (B), etc. It is a side view and a bottom view.
  • Fig. 7 (A), (B) and (C) are side views of the base plate, Fig. 7
  • FIG. 6A is a cross-sectional view taken along the line XX in FIG.
  • FIGS. 8 (A), (B), and (C) are a side view of the substrate support, an X_X sectional view of FIG. 8 (A), and a Y_Y sectional view of FIG. 8 (A), respectively.
  • FIGS. 9A and 9B are a side view and a side view of the substrate, respectively.
  • FIG. 10 Fig. 10 (A), (B), (C), (D), (E), (F) are a plan view, a partially sectional front view, a side view, and a second view of the second terminal plate, respectively.
  • FIG. 4 is a plan view, a partial cross-sectional front view, and a side view of a terminal plate.
  • FIG. 11 is an enlarged perspective view of a main part for explaining a connection state between a coil assembly and a sensor circuit board.
  • FIGS. 12 (A) and (B) are a side view and another side view in the process of incorporating the sensor chassis in the second embodiment, respectively.
  • FIG. 13 is a cross-sectional view of a sensor assembly patterned in the third embodiment.
  • FIG. 14 is an operation explanatory view for explaining the laminated state of the coil unit in the fourth embodiment.
  • FIG. 15 is a cross-sectional view of a power steering apparatus in a fifth embodiment.
  • FIGS. 16 (A) and 16 (B) are side views of the sensor chassis according to the fifth embodiment, respectively, and a sectional view taken along the line XX in FIG. 16 (A).
  • FIGS. 17A and 17B are a side view of a coil unit according to the fifth embodiment, respectively, and a cross-sectional view taken along the line XX of FIG. 17A.
  • FIGS. 18 (A), (B), (C), (D), and (E) are a plan view, a side view, and FIG. ) X— X cross section
  • FIGS. 19A and 19B are a side view and a bottom view of FIG. 19A, respectively, illustrating the laminated state of the coil units in the coil assembly of the fifth embodiment.
  • FIGS. 20 (A), (B), and (C) are side views in the process of assembling the sensor assembly of the sixth embodiment, respectively, a cross-sectional view taken along the line XX in FIG. It is.
  • FIGS. 21 (A), (B), and (C) are side views for explaining the caulking state of the sixth embodiment, an enlarged view of the main part, and a view as seen from the arrow X in FIG. 21 (B).
  • FIGS. 21 (A), (B), and (C) are side views for explaining the caulking state of the sixth embodiment, an enlarged view of the main part, and a view as seen from the arrow X in FIG. 21 (B).
  • FIGS. 22 (A) and (B) are side views of the main part for explaining the force-squeezing state in the seventh embodiment, respectively, and are XX cross-sectional views in FIG. 22 (A). .
  • reference numeral 1 denotes a steering wheel (operation handle) that is rotatably provided on a vehicle body.
  • the steering wheel 1 includes a steering wheel.
  • One end (front end) of the shaft (rotating shaft) 2 is connected, and the other end (base end) of the steering shaft 2 is provided with the power steering device 3 in which the present invention is implemented. It has become.
  • the housing H configuring the power steering device 3 is configured by integrating first and second housings 4 and 5 formed in a split shape in the axial direction of the steering shaft 2.
  • first and second housings 4 and 5 are opened in communication with each other so as to be concentric with the axis of the steering shaft 2.
  • These through holes 4 a and 5 a Is supported rotatably by the output shaft 6 force bearings 4 b and 5 b which are linked to the other end of the steering shaft 2 while being supported by the shaft.
  • the steering shaft 2 is freely loosely fitted to a steering column 2a fixed to the vehicle body side, and the other end of the steering column 2a has a housing H (first A mounting bracket 2b for integrally fixing the first and second housings 4, 5) is formed so as to extend toward the outer diameter side.
  • the output shaft 6 is supported in a penetrating manner with respect to the first and second housing through holes 4a and 5a, and the output shaft 6 protrudes from the through hole 4a of the first housing 4.
  • -Relative rotation is allowed in the rotation range in which the other end portion (base end portion) 2c of the steering shaft 2 is set in advance at the end portion (tip portion) 6a, and the rotation is integrally performed when the rotation exceeds the rotation range. It is linked and linked in a state.
  • the output shaft 6 is formed in a cylindrical shape having a cylindrical hole 6b, and a torsion bar 7 constituting a torque detection sensor is loosely fitted in the cylindrical hole 6b.
  • the torsion bar 7 has one end 7 a that is press-fitted into a support hole 2 d recessed in the other end surface of the steering shaft 2, while the other end 7 b is the other end of the output shaft 6. It is fixed integrally to 6 c using fixing pin 7 c. As a result, as described later, when the steering wheel 1 is operated and a rotational operation force is applied to the steering shaft 2, a twist corresponding to the operation force (torque) is generated in the torsion bar 7. Between shaft 2 and output shaft 6. In this case, the relative rotation is set within the predetermined rotation range.
  • a worm wheel storage chamber WR is formed at the abutting portion of the first and second housings 4 and 5, and the warm wheel storage chamber WR has an output shaft.
  • a worm wheel 8 fitted integrally with 6 is rotatably accommodated.
  • the first housing 4 is formed with a worm shaft housing chamber 4 c extending in a direction perpendicular to the output shaft 6, and the worm shaft housing chamber 4 c rotates as the electric motor M is driven.
  • the worm shaft 9 is accommodated, and the worm 9 a and the worm wheel 8 on the outer periphery of the worm shaft 9 are connected to the worm shaft housing chamber 4 c and a predetermined portion in the circumferential direction of the worm wheel housing chamber WR.
  • the base end of the output shaft 6 is linked to a steering gear (steering device) member SG (not shown), and the steering gear is operated as the output shaft 6 rotates to steer the vehicle. Is set to
  • a plurality of output shaft side detection grooves 6 d are formed in the circumferential direction in the vicinity of the tip portion 6 a of the output shaft 6, while the outer periphery of the output shaft side detection groove 6 d
  • a cylindrical sleeve 10 is externally fitted so as to be relatively rotatable, and a front end portion of the sleeve 10 is attached to a base end portion 2c of the steering shaft 2 via an integral fixing means (for example, caulking). It is fixed.
  • the sleeve 10 is provided with a plurality of openings in the circumferential direction so that the steering shaft side detection groove 10a penetrates the cylindrical portion in a predetermined facing state with the output shaft side detection groove 6d. Yes.
  • the steering shaft side detection groove 10 a and the output shaft side detection groove 6 d are set so as to be misaligned.
  • a sensor assembly 11 constituting a torque detection sensor is fixed to the outer periphery of the sleeve 10, and the sensor assembly 11 allows the steering shaft side detection groove 10a to The torque acting on the torsion bar 7 is electrically detected based on the positional deviation (relative rotation between the steering shaft 2 and the output shaft 6) that occurs when facing the output shaft side detection groove 6d.
  • the present invention is implemented in the sensor assembly 11.
  • a coil assembly 12 provided in the sensor assembly 11 is integrally fitted around the outer periphery of the sleeve 10, and the output shaft side detection groove 6 d and the steering shaft side detection groove 10 a are opposed to each other.
  • the first and second coil units 13 and 14 are configured to change the amount of magnetic flux based on the occurrence of positional deviation in the state.
  • These first and second coil units 1 3 and 14 are arranged adjacent to each other in the axial direction of the output shaft 6, and either the first or second coil unit 13 or 14 It is for torque detection between the shaft 6 and the steering shaft 2, and the other coil unit 14 or 1 3 is for preventing false detection accompanying the temperature change of the coil assembly 1 2. Accurate detection by the sensor assembly 1 1 is guaranteed.
  • Each of the first and second coil units 13 and 14 has a shape that is externally fitted to the sleeve 10 and is made of an insulating material. 1 4 a and windings 1 3 b and 1 4 b are wound respectively.
  • the bottomed cylindrical first and second yokes made of a magnetic material (corresponding to the coil yoke of the present invention) It is fitted in 2 2 and 2 3 and covered with first and second yoke covers 1 2 2 a and 2 3 a, and these basic configurations are the same.
  • the first and second coil units 13 and 14 are applied with a predetermined current to the windings 13 b and 14 b to detect the steering shaft side detection groove 10 a and the output shaft side detection.
  • the outer periphery of the yokes 2 2 and 2 3 is provided with the coil pobbins 1 3 a and 14 a force, and the support portions 1 3 c and 14 (extending from the outer periphery of the yokes 2 2 and 2 3 respectively.
  • These support portions 1 3 c and 1 4 c are formed in a protruding state, and each pair of coils connected to the unwinding end and the winding end of each winding 1 3 b and 14 b
  • the first and second pin bodies 1 3 d and 14 d which are the side terminals, are insulative with a predetermined gap in the circumferential direction, and the support parts 1 3 c and 14 c move from the outer diameter side to the outer diameter side. Each is configured to protrude.
  • the first and second coil units 1 3 and 1 4 are adjacent to each other in the axial direction in a state in which the yoke covers _ 2 2 a and 2 3 a are in contact with (opposite) with each other.
  • the first and second pin bodies 1 3 d and 1 4 d are adjacent to each other in the circumferential direction (with a predetermined gap in the circumferential direction). It is set to be accommodated in the hippo unity 1 5.
  • the cover integral 15 is configured as a bottomed cylinder having a ring-shaped bottom piece 15 a and a cylindrical portion 15 b, and the first and second coil units 1 3, 14 are integrated with the cover 1 It is set to be accommodated together with the disc springs 16 in the 5 cylindrical portions 15 b.
  • the cover integral 15 is formed with a notch 15 c formed by notching the cylindrical portion 15 b, and the first and second pin bodies 13 d and 14 d are formed from the notch 15 c. Is set to protrude to the outer diameter side. Further, the cover integrated 15 is formed with a flange portion 15 d extending from the opening edge of the cylindrical portion 15 b to the outer diameter side, and on the outer peripheral edge of the flange portion 15 d, A plurality (three) of mounting claw pieces 15 5 e in the circumferential direction are formed.
  • the coil assembly 1 2 includes the first and second coil units 1 3 and 1, the coil bobbins 1 3 a and 1 4 a, the cylindrical holes, the yokes 2 2 and 2 3, the yoke covers 1 2 2 a and 2 3 a,
  • the through holes formed in the cover-integrated bottom piece 15 a and the disc spring 16 are respectively formed as continuous through holes 12 a that are concentric with the axis of the output shaft 6.
  • [001 7] 1 7 is a rectangular base spray rod for integrating the sensor assembly 1 1, and the base plate 17 is formed of a rectangular metal plate.
  • a through hole 1 7 a having a diameter substantially the same as or slightly larger than the continuous through hole 1 2 a of the coil assembly 1 2 is opened.
  • force shim mounting holes 17b are formed at a plurality of locations (three locations) in the circumferential direction.
  • the coil assembly 12 faces the other side plate surface 17 c of the base plate 17, and the continuous through hole 12 a and the through hole 17 a of the base plate 17 are concentric.
  • the coil assembly 12 is moved by the pressing force of the disc spring 16 between the first and second coil units 13 and 14 and the cover integral bottom piece 15 a and the base plate 17. It is set to be fixed to the base plate 17 in a state in which the output shaft 6 is pressed in the axial direction and positioned in the circumferential direction and the axial direction.
  • the other half of the base plate 17 where the coil assembly 12 is not provided corresponds to the extending plate portion of the present invention, and the other half corresponds to the axis of the coil assembly 12. It is in a state extending in the orthogonal direction.
  • a support body 18 is provided, and the substrate support body 18 is fixed together with a sensor circuit board 19 accommodated in the substrate support body 18 using a screw 18a, whereby a sensor The circuit board 19 is set so as to be positioned in the outer diameter direction of the coil assembly 1 2.
  • the substrate support 18 is fixed by a screw 18 a, and the substrate support 18 is further formed with a locking claw piece 1 8 b protruding to one end side. 1 8 b is set so as to be secured to the claw mounting hole 17 d formed in the base plate 17.
  • the sensor circuit board 19 is in close proximity to the bottom piece 1 8 c of the board support 18.
  • the other side plate surface 1 7 c of the base plate 17 facing through the through hole 18 8 d opened in the bottom piece 1 8 c, the substrate support bottom piece 1 8 c Is arranged in a state having a predetermined gap, and is perpendicular to the axial direction of the first and second coil units 13 and 14, that is, protrudes from the outer periphery of the cover body 15 in the outer diameter direction.
  • the first and second pin bodies 13 3 d and 14 d are parallel to the protruding direction.
  • the first and second terminal plates 24, 25 are each formed by bending a long flat plate material into a U shape so that the plate surfaces face each other, and a pair of leg pieces 24a, 24 b, 25a, 25b, and connecting pieces 24c, 25c that integrally connect the base ends of these leg pieces 24a, 24b, 25a, 25b.
  • These first and second terminal plates 24 and 25 are fixed to the terminal support portion 18 e formed on the substrate support 18 at the stage before the sensor circuit board 19 is disposed.
  • the sensor circuit board 19 is disposed in a state described later after being fixedly disposed through a fixing means such as press-fitting the connecting piece 24 £ ; 25 c into the terminal support portion 1 86. Is set to
  • the protruding positions of the pair of first and second pin bodies 1 3 d and 1 4 d protruding from the cover assembly 15 of the coil assembly 1 2 are such that the first and second coil units 1 3 and 1 4 are shafts. Since they are stacked in the core direction, they are orthogonal to the axis direction (they are parallel to the protruding direction of these first and second pin bodies 13 d and 14 d) from the sensor circuit board 19
  • the first pin body 1 3 d protruding from the first coil unit 1 3 is more sensitive to the sensor circuit than the second pin body 1 4 d protruding from the second coil unit 1 4. Placed near the board 1 9 Yes.
  • the board connection side leg pieces 2 4 b and 25 b corresponding to the other leg pieces of the first and second terminal plates 24 and 25 and connected to the sensor circuit board 19 are plates.
  • the sensor circuit board 19 is formed with through holes 19 a through which the board connection side leg pieces 24 b and 25 b pass, respectively. Then, the sensor circuit board 19 is incorporated into the board support 18 with the first and second terminal plates 2 4 and 2 5 fixed in advance.
  • the board-side leg pieces 2 4 b and 2 5 b Is inserted in a state of penetrating from the one side plate surface 19 b side of the through hole 19 a toward the other side plate surface 19 c side, and the tip ends of the board connection side leg pieces 2 4 b and 25 b (Through end) 2 4 d, 25 d force Forced from the other side plate surface 19 c where the first and second pin bodies 1 3 d, 14 d of the sensor circuit board 19 are disposed It is set to be.
  • first and second terminal plates 2 4 and 25 are coil connection side leg pieces 2 4 a and 2 5 a, respectively, and the first and second pin bodies 1 3 d and 1
  • the connecting part with 4d is formed with a wide plate width, and bent pieces (pin receiving pieces) 2 4 e, 2 5 cut and raised toward the sensor circuit board 19 side in the middle part of the plate width direction e force
  • the first and second pin bodies 1 3 d and 14 d are formed in a state parallel to the protruding direction.
  • the bent pieces 2 4 e and 25 e at the intermediate portion in the width direction, the first and second pin bodies are provided on both sides of the bent pieces 2 4 e and 25 e.
  • Standing pieces 2 4 f and 2 5 f standing up in the protruding direction of 1 3 d and 14 d and in the direction standing upright on the sensor circuit board 19 are formed.
  • the coil assembly 12 includes the sensor circuit board 19, the first terminal, and the second terminal. It is set to be incorporated in the base plate 1 7 in which members such as plates 2 4 and 2 5 are incorporated, and in this incorporation, the four first and second pin bodies 1 3 projecting from the coil assembly 1 2 d, 1 4 d will be incorporated into the first and second terminal plates 2 4, 2 5. In this case, the first and second pin bodies 1 3 d, 1
  • the soldering work is performed on both leg pieces 2 4a, 2 4b, 2 5a, 2 5b of the first and second terminal plates 2 4, 2 5 in this case
  • the base plate 17 is placed in a stable position as a horizontal state, and in this state, on the sensor circuit board 19 side, the penetrating end 2 4 d protruding from the other side plate surface 19 c 2 5 d in the direction from the first and second pin bodies 1 3 d and 1 4 d to the sensor circuit board 19 (the direction to the one side is the axial direction, perpendicular to the sensor circuit board 19 Direction), the sensor circuit board 19 is connected to the first and second terminal plates 2 4 and 2 5 by soldering to the other side of the sensor circuit board 1 9 c. .
  • the projections of the first and second pin bodies 1 3 d and 14 d are maintained in the state described above.
  • the pin receiving pieces 2 4 e and 2 5 e that are opposed to each other with the long section facing the sensor circuit board 19 from the first and second pin bodies 1 3 d and 1 4 d side (axis core Direction, the direction orthogonal to the sensor circuit board 1 9), the connection between the first and second pin bodies 1 3d and 1 4d and the first and second terminal plates 2 4 and 2 5 It is configured to be made.
  • the first and second pin bodies 1 3 d and 1 4 d are between the first and second pin bodies 1 3 d and 1 4 d that are adjacent to each other in the circumferential direction. Each gap is formed and dispersed in the circumferential direction. Because of this 1st and 2nd pin bodies 1 3d and 1 4d are soldered from the axial direction to facilitate the soldering work, and the insulation of each soldering part is easily secured. Has been.
  • the first and second pin bodies 1 3 d and 1 4 d are made to face the pin receiving pieces 2 4 e and 25 e by making the first and second pin bodies 1 3 d and 1 4 d face each other.
  • the facing area between d and the first and second terminal plates 24 and 25 is large, and not only the connection by soldering is ensured, but also the axial core that is orthogonal to the sensor circuit board 19 When it is carried out from the direction, it is possible to receive the solder eluted by the pin receiving pieces 24 e, 25 e, so that the first and second pin bodies 1 3 d, 1 4 d and the first, second terminal plates 24, 25
  • the shape of the solder that elutes between the two can be made stable so that electrical connection is ensured and the amount of solder supplied can be made constant.
  • the standing pieces 24 f and 25 f are arranged opposite to each other on both sides of the first and second pin bodies 1 3 d and 1 4 d in the circumferential direction, the first and second pin bodies 1 3d and 14d are restricted in the movement direction in the circumferential direction, so that it is possible to prevent problems such as damage to the soldered connection.
  • both the sensor circuit board 19 side and the first and second pin bodies 13d and 14d side Soldering at each part can be performed from the same direction from the other side to one side in the axial direction, and the soldering process can be performed as a single process. It is configured so that the connection by attachment can be in a reliable connection state.
  • the first and second pin bodies 1 3 d and 1 4 d are connected to the other plate surface 1 of the sensor circuit board 1 9 via the first and second terminal plates 24 and 25.
  • Reference numeral 20 denotes a hood that covers the protruding portions of the first and second pin bodies 13 3d and 14d and the sensor circuit board base 19.
  • the sensor assembly 11 configured as described above is provided with a sensor circuit for the concave assembly mounting portion 4d formed on one end side of the worm wheel chamber WR of the housing H (first housing 4). It is set to be assembled from the end of the housing H with the board 19 facing each other. Then, the communication through hole 12a and the base plate through hole 17a formed in the coil assembly 12 are placed on the outer periphery of the sleeve 10 that is fitted to the outer periphery of the output shaft 6 so as to be relatively rotatable. In addition, it penetrates in a concentric state, and is screwed into the assembly attachment portion 4d using the attachment screws 17f inserted from the fixing attachment holes 17 7e opened on the outer edge of the base plate 17.
  • the sensor assembly 1 1 is fixed to the housing H integrally.
  • the coil assembly 1 2 and the sensor circuit board 19 can be attached to the housing H by one assembling operation, and the coil assembly 1 2 and the sensor circuit board 1 can be attached. It is configured so that it can be installed in a state where it is connected to 9. In addition, it is configured so that only the sensor assembly 11 can be easily replaced during maintenance.
  • the sensor assembly 11 is assembled so that the base plate 17 faces the one end side that is the steering shaft 2 side, whereby the electronic component 19 d is arranged.
  • One end of the sensor circuit board 19 is covered with the base plate 17 and the other end is covered with the assembly mounting portion 4d of the housing H.
  • the circuit board 19 is configured to be protected.
  • the sensor circuit board 19 is arranged so as to extend in the outer diameter direction of the coil assembly 12 with respect to the arrangement site of the coil assembly 12. As a result, a long space in the axial direction is secured at the connecting portion between the steering shaft 2 and the output shaft 6 as in the case where a conventional sensor circuit board is provided long in the axial direction. It is configured so that both the coil assembly 1 2 and the sensor circuit board 19 can be provided if only the space necessary for installing the coil assembly 1 2 is secured. .
  • the shaft core of the coil assembly 1 2 (first and second coil units 1 3 and 1 4), the output shaft 6, the steering shaft 2 It is necessary that the positional relationship between the shaft of the sleeve 7 and the sleeve 10 is accurately concentric.
  • the coil assembly 12 of the present embodiment is not directly fixed to the housing H, but is configured to fix what is supported on the base plate 17 to the housing H. Therefore, the coil assembly 1 2 It is assumed that the axial misalignment of the coil assembly 1 2 is likely to occur when some load acts on the plate 1 17.
  • 7 h is formed in a ring shape with a predetermined gap.
  • the bead 17 h is formed substantially concentrically with the formation position of the caulking attachment hole 17 b where the cover assembly 15 of the coil assembly 12 is fixed by caulking. Therefore, the bead 17 h is set so as to reinforce effectively when the coil assembly 12 is caulked to the base spray 17.
  • the power steering device 3 can realize a smooth operation of the steering wheel 1.
  • the steering shaft 2 and the output shaft 6 of the power steering device 3 In order to detect the relative rotation of the coil assembly, a coil assembly 1 2 composed of a pair of first and second coil units 1 3 and 1 4 and a cover body 15, and a winding 1 3 of the coil assembly 1 2 b, 1 4 b
  • the sensor circuit board 1 9 to which b is connected is incorporated into the power steering device 3 as a sensor assembly _ 1 1, which is one assembly component (assembly), by incorporating it into the base plate 1 7. .
  • the number of parts can be reduced, and the assembling work can be performed smoothly and easily.
  • the coil assembly 1 2 windings 1 3 b and 14 b are connected to the sensor circuit board 19 and the built-in components Since the coil assembly and the sensor circuit board are individually incorporated into the power steering device, it is not necessary to perform the connection work after incorporating them, and the connection work is performed in advance. It is possible to improve workability and reliability. In addition, since only the sensor assembly 11 can be easily replaced during maintenance, it can be used over a long period of time, contributing to lower costs.
  • the sensor assembly 1 1 only has the coil assembly 1 2 fitted on the sleeve 10 and the base plate 1 7 is fixed to the housing H. Since it can be fixed to the housing H by Work can be further facilitated.
  • the output shaft 6 is provided when the sensor assembly 11 is disposed.
  • the space in the axial direction can be reduced, contributing to compactness.
  • a bead 17 h is formed at the coil assembly 12 location of the base plate 17, and the base plate 17 is distorted or deformed. Therefore, it is possible to reduce the problem that the detection accuracy is lowered due to the misalignment between the coil assembly 12 and the output shaft 6, and the sensor assembly 11 having higher reliability can be obtained.
  • the sensor circuit board 19 is based on the opening of the assembly attachment 4d formed in a concave shape. It is assembled with plate 17 covered.
  • the sensor circuit board 1 9 force is placed between the metal assembly mounting part 4d and the metal base plate 17 and measures against contamination of the sensor circuit board 19
  • the sensor circuit board 19 can be protected without specially adopting measures against noise and radio noise, and the number of parts can be reduced.
  • the metal material is fixed in a state of being in direct contact with each other. Can be further reduced.
  • the first and second pin bodies drawn from the first and second coil units 13 and 14 constituting the torque detection sensor (sensor assembly 1) 11 are used.
  • 1 3 d and 14 d are arranged adjacent to each other in the circumferential direction, and when these first and second coil units 1 3 and 14 are stacked, they are displaced in the circumferential direction.
  • the first and second pin bodies 13 3 d and 14 d protruding from the cover integrated body 15 are displaced in the circumferential direction.
  • 1st, 2nd pin body adjacent to 1 A gap is formed between 3d and 14d.
  • the first and second pin bodies 1 3 d and 1 4 d are dispersed in the circumferential direction, and the pin bodies do not overlap with each other in the axial direction as in the prior art.
  • soldering to connect to the two terminal plates 2 4 and 2 5 not only is the soldering work easier, but each 1st and 2nd pin bodies 1 3 d and 1 4 d As a result, it is easy to ensure the insulation of the soldered parts, so that a highly reliable sensor assembly 1 1 can be obtained.
  • the first and second terminal plates 2 4 and 2 5 are each formed in a U-shape, and the first and second terminal plates 2 4 and 2 5 and the first and At the part to be soldered to the second pin body 1 3 d, 14 d, connect the first, second pin body 1 3 d, 14 d to one of the first, second terminal plates 24, 25 Since the coil connection side leg pieces 2 4 a and 2 5 a which are leg pieces 2 4 e and 2 5 e are formed so as to be opposed to the front end surface portions and soldered, the first, The second pin bodies 1 3 d and 14 d can be easily assembled into the first and second terminal plates 2 4 and 2 5.
  • the direction of soldering to the coil connection side legs in 2 4 a and 2 5 a may be the axial direction from the first and second pin bodies 1 3 d and 1 4 d to the sensor circuit board 1 side.
  • soldering work is facilitated and reliable insulation can be realized.
  • the board connection side leg pieces 2 4 b and 2 5 b are arranged so that the through holes 19a of the sensor circuit board 19 are moved from the one side plate surface 19b to the other side plate surface 19.
  • penetrating end 2 4 d, 2 5 d is soldered to the first and second pin bodies 13 3 d, 14 d on the other side plate surface 17 c
  • the sensor circuit board 19 It can be performed in the direction of the perpendicular axis, and soldering at both parts can be performed in one posture of the torque detection sensor 11, which can reduce the number of processes and contribute to cost reduction.
  • the present invention is of course not limited to the above-described embodiment, and may be the second embodiment shown in FIG.
  • a coil assembly 12 configured similarly to the first embodiment is provided in a half portion 27a of the base plate 27, and a coil In the other half 2 7 b of the base plate 2 7 extending in the outer diameter direction of the assembly 1 2, the substrate support 2 8, the sensor circuit board 2 9 being accommodated in the substrate support 2 8
  • These basic configurations are the same as those in the first embodiment.
  • the sensor circuit board 29 is provided with an adjustable electronic component 29a, for example, a trimmer for finely adjusting the capacitance value of the sensor circuit.
  • the substrate support 28 and the base plate 27 are provided with through-holes 2 8a and 2 7c in communication with the electronic component 29a located opposite the location.
  • the electronic component 29a can be viewed from the base plate 27 side through the through holes 28a and 27c.
  • the base plate 27 is exposed to the outside in a state where the sensor assembly _ 26 is assembled in the housing H in the same manner as in the first embodiment.
  • the electronic component 29a can be adjusted from the 27 side through the through hole 27c and the through hole 28a of the substrate support 28.
  • a plurality (three) of adjustable electronic components 29a are provided, but these electronic components 29a are provided in one place.
  • the substrate support 28 and the through holes 28a and 27c opened in the base plate 27 are designed to be as small and as small as possible.
  • the workability of the adjustment work is improved.
  • the base plate 27 may be provided with an integrated cover that covers the through hole 27c so that it can be opened and closed. By doing so, foreign matter can be prevented from entering the sensor circuit board 29 side. It can be surely prevented.
  • FIG. 13 shows the sensor assembly 30 according to the third embodiment.
  • a sensor base 30 is attached by fixing a metal base plate 3 1 to a housing H, and a substrate support 3 2 is fixed to the base plate 3 1.
  • the sensor circuit board 33 is supported on the board support 3 2.
  • the electronic component 3 3 a is fixed to the surface of the sensor circuit board 3 3 on the base plate 3 1 side, and the adjustment part 3 3 b force base plate 3 1 of the electronic component 3 3 a and the substrate support 3 2 It is configured to be exposed to the outside through the through holes 3 1 a and 3 2 a opened in the above.
  • the adjustment part 3 3 b of the adjustment part 3 3 a can be operated via the through holes 3 1 a and 3 2 a. Adjustment work can be performed with good workability, and the sensor circuit board 33 can be protected.
  • a fourth embodiment will be described with reference to FIG. 14.
  • a pair of first and second coil units 3 4, 3 5 constituting the coil unit is described.
  • the built-in state is different from that of the first embodiment.
  • the pin bodies 3 4 a and 3 5 a protruding in the outer diameter direction from the pair of coil units 3 4 and 3 5 are positioned along one end surface in the axial direction of the coil unit, and the pin bodies 3 4 a and 3 5
  • the coil units 3 4 and 3 5 are stacked in a state where the positions of the pins a are shifted in the circumferential direction, the axial positions of the pin bodies 3 4 a and 3 5 a are configured to be the same position. Yes.
  • the coil units 3 4 and 3 5 can be configured in the same manner, and the distances from the substrate side of the pin bodies 3 4 a and 3 5 a are the same. There is an advantage that the same terminal plate can be used.
  • the coil assembly 36 is configured as follows.
  • the fifth embodiment constitutes the same sensor assembly 1 1 as that of the first embodiment.
  • the same members as those of the first embodiment have the same reference numerals. The description here will be omitted.
  • the coil assembly 36 includes a pair of first and second coil units 3 7 and 3 8 These first and second coil units 37, 38 are arranged in a state of being stacked adjacent to each other in the axial direction of the output shaft 6, and any one of the first and second coils
  • One coil unit 3 7 or 3 8 is for torque detection between the output shaft 6 and the steering shaft 2, and the other coil unit 3 8 or 3 7 is an error caused by the temperature change of the coil assembly 1 2. This is for detection prevention. By doing so, accurate detection operation by the torque detection sensor 11 is guaranteed.
  • Each of the first and second coil units 3 7 and 3 8 has a shape that is fitted around the sleeve 10, is made of an insulating material, and is formed in the same shape as each other. , 3 8 a and windings 3 7 b and 3 8 b wound respectively, the bottomed cylindrical first and second yokes (coil yokes) made of magnetic material 3 9, 4 It is fitted in 0 and covered with first and second yoke covers_ 39a and 40a. Further, on the outer peripheral parts of these yokes 39, 40, the support parts 37c, 38c extending from the coil pobbins 37a, 38a protrude from the outer peripheral surfaces of the yokes 39, 40, respectively.
  • the support portions 37 c and 38 c have a pair of first and second ends connected to the unwinding end and the winding end of the windings 37 b and 38 b, respectively.
  • Bi-pin bodies 3 7 d and 3 8 d are provided so as to protrude to the outer diameter side.
  • the yokes 39, 40 are formed in a bottomed cylindrical shape having flat ring-shaped bottom surfaces 39b, 40b, and yoke tube portions 39c, 40c.
  • a plurality of cut and raised pieces 39 d and 40 d are formed in the circumferential direction on the outer peripheral surfaces of the yoke tube portions 39 c and 40 c.
  • the cut and raised pieces 3 9 d and 4 0 01 have four pairs of diametrically opposed outer peripheral surfaces of the yoke tube portions 3 9 c and 40 c. Eight parts are formed in the circumferential direction, and are formed in a shape that is long in the tube length direction and protrudes in the outer diameter direction. Then, these eight cut and raised pieces 39 d and 40 d are respectively pressed against the outer peripheral surfaces of the yoke cylinder portions 39 c and 40 c so as to protrude toward the outer diameter direction. Carving up It is formed by so-called knurl processing, and the formation conditions are set as follows.
  • the first and second reference lines L 1 and L 2 facing the predetermined diameter direction with respect to the yoke bottom pieces 39 b and 4 O b, and the first and second reference lines L 1 and L 2 and the yoke tube portion 3 Inner diameter side tangent at the intersection of inner diameter side edge of 9c, 40c TN 1, TN 2, First and second reference lines L1, L2 and outer edge side edge of yoke tube 39c, 40c
  • the outer diameter side tangents TS 1 and TS 2 are set at the intersection with the cut and raised pieces 39 d and 40 d
  • the inner diameter side tangents TN 1 and TN 2 of the yoke tube portions 39 c and 40 c are It is set so as to be formed in a range corresponding to the radial tangent line TS 1 and TS 2.
  • the cut and raised pieces 39 d and 40 d are arranged in the direction perpendicular to the first and second reference lines L 1 and L 2 in the above range of the outer peripheral surfaces of the yoke cylinder portions 39 c and 40 c. (In the direction of the arrow in FIG. 17 (A)), it is cut and raised so as to protrude from the outer peripheral surface of the yoke tube portions 39c, 40c to the outer diameter side.
  • the first and second reference lines L 1 and L 2 are used, on both sides in the radial direction of each of the first and second reference lines L 1 and L 2, and from both sides in the circumferential direction.
  • the cut and raised pieces 39d, 40d correspond to the space between the inner diameter side tangents T T 1, ⁇ ⁇ 2 and the outer diameter side tangents TS 1, TS 2 of the yoke tube portions 39c, 40c.
  • the load generated during the cutting and raising process by the cutting and raising tool acts so as to follow the plate thickness of the yoke tube portions 39 c and 40 c. Deformation can be prevented, and thereby the influence on the magnetic field generated in the yokes 39 and 40 and the yoke covers 39a and 40a can be reduced.
  • the first and second coil units 37 and 38 thus formed correspond to the yoke covers _ 39a and 40a of the first and second coil units 37 and 38, respectively. Stacked in a state where they are adjacent to each other in the axial direction in contact (opposite) and are displaced in the circumferential direction so that the first and second pin bodies 37d and 38d are adjacent to each other in the circumferential direction
  • the cover body 41 is made of a material having a hardness difference from the material of the yokes 39, 40 of the first and second coil units 37, 38. Used, the material has a hardness lower than that of the yokes 39 and 40.
  • the cover unit 41 has a bottomed cylindrical shape including a ring-shaped bottom piece 4 1 a and a cylindrical portion 4 1 b.
  • the inner diameter of the cylindrical portion 4 1 b is the yoke cylindrical portion 39.
  • the c and 40 c cut-and-raised pieces 39 d and 40 d are set in substantially the same manner as the outer diameter at the portion where the cut and raised pieces 39 d and 40 d are not formed.
  • the cover integrated 41 is basically the same configuration as the cover integrated in the first embodiment, 4 1 c is a notch, 4 1 d is a flange, and 4 1 e is a mounting claw. It is a piece.
  • each of the cut and raised pieces 39d and 40d of the first and second coil units 37 and 38 has a plurality of pairs formed in the radial direction.
  • the first and second coil units 3 7 and 3 8 are formed in the same configuration, but the coil side terminals (pin bodies) 3 7 d and 3 8 d are circumferentially adjacent to each other in the circumferential direction. They are stacked with their positions shifted in the direction.
  • the cut-and-raised pieces 3 9 d and 40 d formed in the yoke tube portions 39 c and 40 c overlap each other in the press-fitting direction due to the displacement in the circumferential direction. There is no.
  • the cut-and-raised piece 3 9d of the first coil unit 3 7 that is press-fitted does not interfere with the biting portion, and the biting portion is formed at different positions on the inner peripheral surface of the cylindrical portion 4 1 b.
  • both the first and second coil units 3 7 and 3 8 can bite into the inner peripheral surface of the cylindrical portion 4 1 b with certainty, and the fixing to the cover integrated 4 1 is ensured. Both are configured so that they can be performed in a stable state without variation.
  • the coil assembly 36 is connected to the open side of the cover 41, that is, the first coil unit 37 is opposed to the other side plate surface 17c of the base plate 17 and is connected through.
  • Hole 1 2 a and base plate 1 7 through-hole 1 7 a are concentric, coil assembly 1 2 is pressed against the outer peripheral edge of base plate through-hole 1 7 a, and cover integral mounting claw piece 1 5 e It is set so that it can be integrated into the base plate 17 by inserting it into the base plate force mounting hole 1 7 b and caulking it.
  • the first and second coil units 37 and 38 are assembled in the cover body 41 in a state where movement in the axial direction and movement in the circumferential direction are restricted. Therefore, as in the first embodiment, the first and second coil units 3 7 and 3 8 are assembled into the base plate 17 without being provided with a pan panel integrally with the cover. This simplifies the configuration and reduces the number of parts.
  • the cover integral 41 is formed of a material whose hardness is lower than the hardness of the material constituting the yokes 39, 40, so that the cover body cylinder portion 41b
  • the cover body cylinder portion 41b There is no problem of deforming the yokes 3 9 and 40 when press-fitting, and the deformation of the cut and raised pieces 3 9 d and 40 d itself can be reduced, so the cut and raised pieces 3 9 d , 40 d
  • the cover integrated cylinder part 4 1 b The biting into the inner peripheral surface is ensured, and the first and second coil units 3 7 and 3 8 have a stable fixing force to the cover integrated 4 1. Can do.
  • the first and second coil units 3 7 and 3 8 are stacked in the axial direction and press-fitted into the cover unit 41, but the first and second coil units 3 7 3 8 and 3 8 are formed in the same configuration, and the pin bodies 3 7 d and 3 8 d are laminated in a state where they are displaced in the circumferential direction. Therefore, the cut and raised pieces 3 of each coil unit 3 7 and 3 8 9 d and 40 d are also misaligned in the circumferential direction.
  • the cut and raised pieces 3 9 d and 40 d of the first and second coil units 3 7 and 3 8 do not interfere with each other in the press-fitting direction, and the first and second coil units 3 7 and 3 8
  • the fixing force to the cover 4 1 can be obtained in a stable and non-uniform state.
  • the cut and raised pieces 3 9 d, 40 d are connected to the inner diameter side tangents TN 1, TN 2 and the outer diameter side tangents TS 1, TS 2 of the yoke cylinder portions 39 c, 40 c. Since it is formed within the range that can be dealt with in a short time, it is possible to prevent a problem that the yoke 39, 40 is deformed by the load generated during the cutting and raising process by the cutting and raising tool, and based on the coil assembly 36. The influence on the magnetic circuit can be reduced. For example, when the torque detection is performed by the coil assembly 36, the detection function can be prevented from being impaired.
  • the cut-and-raised piece may be formed on the inner peripheral surface of the cover, and in this case, the cut-and-raised piece is formed to protrude toward the inner diameter side.
  • the sixth embodiment constitutes the same sensor assembly 11 as that of the first embodiment.
  • the same members as those of the first embodiment have the same reference numerals. The explanation here is omitted.
  • the coil assembly 4 2 of the sixth embodiment has the same basic configuration as the cover integrated in the first embodiment, and includes a bottom piece 4 3 a, a cylindrical part 4 3 b, a notch part 4 3 c, and a flange.
  • the cover integrated body 4 3 provided with the part 4 3 d is configured by accommodating the first and second coil units 1 3 and 1 4 together with the disc spring 16 and the outer peripheral edge of the cover integrated flange section 4 3 d.
  • Projection piece (mounting claw piece) 4 3 e base play Gripping holes 1 7 7
  • the protruding piece 43 e is configured to have a predetermined plate thickness, and the length in the circumferential direction is longer than the plate thickness.
  • the mounting holes 17 b for the force shims of the base plate 17 are formed slightly larger than the outer shape of the protruding pieces 4 3 e, and the protruding pieces 4 3 e are the mounting holes for the force shims.
  • 1 7 b is configured to penetrate in a loose fit.
  • 4 4 is a tooth tip constituting a force-squeezing tool, and in the present embodiment, the tooth tip 44 has a width set longer than the plate thickness of the protruding piece 4 3e.
  • the tooth tip 44 is formed with an inclined surface 44 a cut in an inclined manner from one side surface to the other side surface.
  • the longitudinal direction of the through end 4 3 f L that is, the force squeezing force while pressing the tooth tips 4 4 of the caulking tool against the base plate 1 7 at the two circumferential positions.
  • 4 has a predetermined inclination angle 0 (45 degrees in the present embodiment) with respect to the longitudinal direction L of the penetrating end portion 43f, as shown in FIG.
  • the slanted surfaces 4 4 a are set so that they face each other in the opposite direction (not facing each other).
  • a caulking receiving member (not shown) is abutted and fixed to the flange portion 4 3d of the cover integral 4 3 and the tooth tip 4 4 abutting against the penetrating end 4 3f is connected to the caulking receiving member side. It is configured to force-squeeze the through end 4 3 f by pressing against (one end side). At this time, the through end portion 4 3 f is acted on by a caulking mechanism in the direction perpendicular to the width direction of the tooth tip 4 4 (the arrow direction in FIG. 21 (A)). As shown in FIGS.
  • the first and second recesses 43g and 43h are formed, while the direction perpendicular to the width direction of the tooth tips 44 is formed.
  • the deformed deformed portion 4 3 i is formed, and thus the deformed portion 4 3 i is locked to the hole edge on the inner diameter side at one end in the circumferential direction of the force shim mounting hole 17 b, At the other end in the rotational direction, it is locked to the hole edge on the outer diameter side, and at least It is set so that it can be fixed in a state where it is locked to the edge of the diagonal direction.
  • the coil assembly 42 is configured to be a sensor assembly 11 1 that is fixed in a stable state with no axial misalignment.
  • the bead 17 h formed at the hole edge of the base plate through hole 17 a is substantially the same as the formation position of the force shim mounting hole 17 b where the cover integral 43 of the coil assembly 42 is fixed by caulking. It is located on a concentric circle. Accordingly, the bead 17 h is set so as to effectively reinforce the base plate 17 when the coil assembly 42 is caulked and fixed to the base plate 17.
  • the coil assembly 4 2 can be configured so that there is no axial misalignment with respect to the base plate 1 7, so that a highly reliable sensor assembly 1 1 capable of accurately detecting torque can be obtained. Can be provided.
  • the tooth tips 4 4 are positioned in parallel to each other, and the inclined surfaces 4 4 a do not face each other.
  • the projecting piece 4 3 e (through end 4 3 f) is inclined with respect to the longitudinal direction so that the deformed part 4 3 i is attached to the force shim mounting hole 1 7 b It is ensured that it is locked to both edge edges of the diagonal direction, and it is possible to reliably realize the rattling control.
  • the inclined surface 4 4 a only on one side surface of the tooth tip 4 4, it becomes possible to give direction to the deformation of the through end portion 4 3 f. Since 4 4 a faces the edge side of the diagonal holes of the force shim mounting hole 1 7 b, deformation to the side is promoted, and rattling can be more reliably controlled.
  • the through end projecting from the mounting hole of the projecting piece is caulked with the tooth tip of the caulking tool, and the deformed portion of the through end is at least paired with the mounting hole.
  • the play in the circumferential direction and the radial direction can be restricted.
  • the shape of the tooth tip used as the caulking tool, the number of tooth tips, and the inclination to apply the tooth tip to the penetrating end corresponding to the shape of the tooth tip of the caulking tool, the mounting hole, and the caulking tool The angle can be set as appropriate.
  • FIG. 22 shows a seventh embodiment.
  • the through end portion 46 in the cover integral protruding piece protruding from the mounting hole 45 a of the base spray 45 is Apply a tooth tip 47 that is wider than the plate thickness of the through end portion 46 to the middle portion of the through end portion 46 with an inclination angle of 45 degrees with respect to the longitudinal direction.
  • a concave portion 4 6 a and a deformed portion 4 6 b that engages with the hole edge of the mounting hole 4 5 a are formed in the through end portion 4 6, but even in this case, the tooth tip 4 7
  • the caulking mechanism that is orthogonal to the width direction of the mounting hole is directed in the diagonal direction of the mounting hole 45a, so that the deformed part 46b force is locked in the diagonal direction of the mounting hole 45a, both in the circumferential direction and in the radial direction.
  • the rattling can be controlled, and the coil assembly can be fixed to the base plate without rattling.
  • the present invention is useful in the field of power steering devices, and includes a coil assembly, a pair of coil units, and a bottomed cylindrical shape that externally fits these coil units.
  • the cover opening is assembled into a sensor assembly by incorporating the cylinder opening of the cover body into a base spray bowl with a built-in sensor circuit board, which reduces the number of parts and facilitates assembly work. In addition, it can be easily performed, and the connection work between the coil assembly after mounting and the sensor circuit board can be made unnecessary, so that the reliability can be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Power Steering Mechanism (AREA)

Abstract

A power steering device capable of being smoothly and simply assembled and having high reliability. A power steering device includes torque detection means having a torsion bar (7) fixed at one end to a steering shaft (2) and at the other end to an output shaft (6) on the electric motor (M) side, a coil assembly (12) fitted on the torsion bar (7) and whose magnetism changes with torsion of the torsion bar (7), and a sensor circuit board (19) for detecting a change in the magnetism of the coil assembly (12). To construct the torque detection means, the coil assembly (12) and the sensor circuit board (19) are assembled to a base plate (17) to form a sensor assembly (11), and this enables the coil assembly (12) and the sensor circuit board (19) to be assembled at a time.

Description

明 細 書  Specification
パワーステアリング装置  Power steering device
技術分野  Technical field
[0001 ] 本発明は、 ステアリングホイールに作用する操作力に基づいて、 電動モー タを駆動してテアリングホイールの操作力をアシス卜するパワーステアリン グ装置の技術分野に属するものである。  [0001] The present invention belongs to the technical field of a power steering apparatus that drives an electric motor to assist the operating force of the tearing wheel based on the operating force acting on the steering wheel.
背景技術  Background art
[0002] 一般に、 電動モータを用いたパワーステアリング装置のなかには、 一端が ステアリングシャフ卜に連結され、 他端が電動モータ側の出力軸に連結され るト一シヨンバーと、 前記ト一シヨンバーの捩れを検知するセンサとにより 構成したトルク検知センサを設け、 該トルク検知センサの検知値に基づいて 電動モータを駆動制御することにより、 軽快なステアリング操作ができるよ うに構成したものが知られている。 このようなトルク検知センサとしては、 ト一ションバーに外嵌状に配されて、 ト一ションバーが捩れることに伴い磁 束量が変化するコイルァッシ一と、 該コィルァッシ一の磁束量変化を検知す るべくコイルアッシーから引き出された巻線が接続された磁気回路を構成す るセンサ回路基板とを備えて構成することが提唱されている。  [0002] Generally, in a power steering device using an electric motor, a torsion bar having one end connected to a steering shaft and the other end connected to an output shaft on the electric motor side, and twisting the torsion bar There is known a configuration in which a light steering operation can be performed by providing a torque detection sensor constituted by a detection sensor and controlling the driving of an electric motor based on a detection value of the torque detection sensor. As such a torque detection sensor, a coil casing that is externally fitted to a torsion bar, the amount of magnetic flux of which changes as the torsion bar is twisted, and a change in the amount of magnetic flux of the coil is measured. It has been proposed to include a sensor circuit board that constitutes a magnetic circuit to which windings drawn from the coil assembly are connected for detection.
[0003] 前記トルク検知センサの一例としては、 ト一シヨンバーに外嵌状に配され るコイルアッシーに対し、 センサ回路基板のプレート面を、 コイルアッシー の軸芯に対して平行に配設したもの （特許文献 1 ) や、 コイルアッシーの外 径方向に延出状に配設したもの （特許文献 2 ) が提唱されている。  [0003] As an example of the torque detection sensor, a plate surface of a sensor circuit board is arranged in parallel to an axis of a coil assembly with respect to a coil assembly that is externally fitted to a torsion bar. (Patent Document 1) and a coil assembly (Patent Document 2) arranged in an extending shape in the outer diameter direction of the coil assembly have been proposed.
特許文献 1 ：特開 2 0 0 5 _ 3 5 3 1 9  Patent Document 1: Japanese Patent Laid-Open No. 2 0 0 _ 3 5 3 1 9
特許文献 2： WO 2 0 0 4 - 0 0 9 4 2 4  Patent Document 2: WO 2 0 0 4-0 0 9 4 2 4
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] ところ力 前記従来のものにおいて、 コイル検知センサは、 ステアリング シャフ卜との基端部に一体的に取り付けられるパワーステアリング装置を構 成するハウジングに収容されるが、 何れのものにおいても、 コイルアッシー は、 トーシヨンバーを外嵌する出力軸に対し移動規制状態で外嵌せしめると ともに、 センサ回路基板については、 ハウジングに形成される基板収容部に 固定するように構成されている。 このため、 コイルアッシーとセンサ回路基 板とをそれぞれ個別に配設することになるので組み込み作業が面倒であるう え、 これら各部材をそれぞれ組み込んだ後に、 コイルアッシーから引き出さ れる巻線とセンサ回路基板とのあいだの接続作業が必要になるが、 該作業は やり難いうえ、 面倒、 力、つ、 煩雑であることから、 作業性が低下するという 問題があり、 ここに本発明の解決すべき課題がある。 [0004] However, in the conventional device, the coil detection sensor includes a power steering device that is integrally attached to a proximal end portion of the steering shaft. In either case, the coil assembly is externally fitted to the output shaft for externally fitting the torsion bar in a movement-restricted state, and the sensor circuit board is a board formed in the housing. It is configured to be fixed to the receiving part. For this reason, since the coil assembly and the sensor circuit board are individually arranged, the assembling work is troublesome, and the winding and the sensor circuit drawn from the coil assembly after each of these members is assembled. A connection work between the circuit board and the board is required. However, the work is difficult and cumbersome, forceful, and cumbersome, and there is a problem that workability is lowered. There are challenges.
課題を解決するための手段 Means for solving the problem
本発明は、 上記の如き実情に鑑みこれらの課題を解決することを目的とし て創作されたものであって、 請求項 1の発明は、 ステアリングシャフトの回 転トルクを検知して、 該ステアリングシャフ卜の回転を電動モータの回転に 基づいてアシス卜するパワーステアリング装置において、 一端がステアリン グシャフ卜に固定され、 他端が電動モータ側の出力軸に固定されるトーショ ンバーと、 トーシヨンバーに外嵌状に配されて、 トーシヨンバーの捩れに伴 い磁気変化するコイルアッシーと、 コィルァッシ一の磁気変化を検知するセ ンサ回路基板とを備えたトルク検知手段を構成するにあたり、 前記コイルァ ッシ一を、 軸方向に積層される一対のコイルユニットと、 これらコイルュニ ットを外嵌する有底筒状のカバー体とで構成し、 該カバー体の筒開口を、 セ ンサ回路基板が組み込まれたベースプレートに組み込んでセンサァッシ一に 構成したパワーステアリング装置である。  The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 detects the rotational torque of the steering shaft and detects the steering shaft. In a power steering device that assists the rotation of the cocoon based on the rotation of the electric motor, a torsion bar with one end fixed to the steering shaft and the other end fixed to the output shaft on the electric motor side, and an external fit to the torsion bar And a sensor circuit board that detects a magnetic change of the coil assembly and a sensor circuit board that detects the magnetic change of the coil assembly. A pair of coil units stacked in the direction and a bottomed cylindrical cover body that externally fits these coil units. A cylindrical opening of said cover member, a power steering device configured to Sensaasshi one incorporated into sensor circuit base plate substrate is incorporated.
請求項 2の発明は、 センサアッシーは、 ベースプレートを介してパワース テアリング装置のハウジングに固定されている請求項 1に記載のパワーステ ァリング装置である。  The invention according to claim 2 is the power steering device according to claim 1, wherein the sensor assembly is fixed to the housing of the power steering device via a base plate.
請求項 3の発明は、 ベースプレートは、 コイルアッシーの軸芯に対して直 交方向に延出する延出プレート部を備え、 センサ回路基板は、 前記延出プレ -ト部に配設されてコィルァッシ一の外径方向に位置するように構成されて いる請求項 1または 2に記載のパワーステアリング装置である。 According to a third aspect of the present invention, the base plate includes an extending plate portion that extends in a direction perpendicular to the axial center of the coil assembly, and the sensor circuit board is disposed on the extending plate portion to be coiled. Configured to be located in one outer diameter direction The power steering device according to claim 1 or 2.
請求項 4の発明は、 ベースプレートは、 コイルアッシー配設部位の近傍に 補強部が形成されている請求項 1乃至 3の何れか一項に記載のパワーステア リング装置である。  The invention according to claim 4 is the power steering apparatus according to any one of claims 1 to 3, wherein the base plate has a reinforcing portion formed in the vicinity of the coil assembly disposition site.
請求項 5の発明は、 ベースプレートは、 ハウジングに形成されるアッシー 取り付け部に対し、 センサ回路基板取り付け側の面を対向させて取り付けら れている請求項 2乃至 4の何れか一項に記載のパワーステアリング装置であ る。  The invention according to claim 5 is the base plate according to any one of claims 2 to 4, wherein the base plate is mounted with the surface on the sensor circuit board mounting side facing the assembly mounting portion formed in the housing. Power steering device.
請求項 6の発明は、 センサ回路基板は、 調整自在な電子部品が組み込まれ るものとし、 ベースプレートには、 前記電子部品の調整をするための開口部 が形成されている請求項 1乃至 5の何れか一項に記載のパワーステアリング 装置である。  According to a sixth aspect of the present invention, the sensor circuit board includes an adjustable electronic component, and the base plate has an opening for adjusting the electronic component. It is a power steering device given in any 1 paragraph.
請求項 7の発明は、 コイルアッシーを構成する一対のコイルュニットは、 それぞれ巻線が巻装されたコィルポビンを筒状のコイルヨークに内装し、 巻 線の両端部に接続する一対のピン体をコイルヨーク外周から周回り方向に間 隙を存して突出するよう構成されるものとし、 これらコイルユニットは、 周 回り方向に位置ズレして軸方向に積層してカバー体に内装され、 前記カバー 体から外径方向に突出する前記各一対のピン体同士は各ピン体のあいだに周 回り方向の間隙が形成され、 これらピン体の突出方向に平行状に配されるセ ンサ回路基板に導電プレートを介してそれぞれ接続されている請求項 1乃至 1 0に記載のパワーステアリング装置である。  According to the seventh aspect of the present invention, the pair of coil units constituting the coil assembly includes a coil pobbin wound with windings in a cylindrical coil yoke, and a pair of pin bodies connected to both ends of the coil are coiled. The coil unit is configured to protrude from the outer periphery of the yoke with a gap in the circumferential direction, and these coil units are displaced in the circumferential direction and stacked in the axial direction, and are embedded in the cover body. The pair of pin bodies protruding in the outer diameter direction from each other has a circumferential gap formed between the pin bodies, and the conductive plate is placed on the sensor circuit board arranged parallel to the protruding direction of the pin bodies. The power steering device according to claim 1, wherein the power steering devices are connected to each other via a cable.
請求項 8の発明は、 導電プレートは、 長尺板材を U字状に折曲して一対の 脚片とこれら脚片を連結する連結片とにより構成され、 一方の脚片とピン体 、 他方の脚片と基板とがそれぞれ半田付けされるものとし、 前記一方の脚片 は、 先端面が基板側からピン体に直交状に対向して半田付けされている請求 項 7に記載のパワーステアリング装置である。  According to the invention of claim 8, the conductive plate is formed of a pair of leg pieces and a connecting piece for connecting these leg pieces by bending a long plate material into a U shape, one leg piece and the pin body, the other The power steering according to claim 7, wherein the leg piece and the board are soldered to each other, and the one leg piece is soldered so that a front end surface thereof is orthogonally opposed to the pin body from the board side. Device.
請求項 9の発明は、 導電プレートの他方の脚片は、 基板を貫通して基板の ピン体配設側の面に突出し、 該突出端部が半田付けされている請求項 8に記 載のパワーステアリング装置である。 The invention according to claim 9 is the invention according to claim 8, wherein the other leg piece of the conductive plate penetrates the board and protrudes to the surface of the board on which the pin body is disposed, and the protruding end is soldered. This is a power steering device.
請求項 1 0の発明は、 コイルアッシーを構成する一対のコイルユニットは In the invention of claim 10, the pair of coil units constituting the coil assembly is
、 それぞれ巻線が巻装されたコィルポビンを筒状のコイルヨークに内装され るものとし、 各コイルヨーク筒部あるいはカバ一体筒部の一方の筒部には、 他方の筒部側に向けて突出する切り起こし片を径方向に対向する部位に位置 して形成され、 コイルュニットはカバ一体に回り止め状に圧入するように構 成されている請求項 1乃至 9の何れか 1項に記載のパワーステアリング装置 である。 The coil pobin around which the windings are wound is incorporated in a cylindrical coil yoke, and one coil portion of each coil yoke tube portion or the cover integral tube portion protrudes toward the other tube portion side. The power according to any one of claims 1 to 9, wherein the cut-and-raised piece is formed so as to be positioned at a portion facing the radial direction, and the coil unit is configured to be press-fitted into the cover integrally in a non-rotating manner. Steering device.
請求項 1 1の発明は、 切り起こし片が形成される側の筒部の材料は、 切り 起こし片が形成されない側の筒部の材料よりも硬度の高い材料で形成されて いる請求項 1 0に記載のパワーステアリング装置である。  In the invention of claim 11, the material of the cylindrical portion on the side where the cut and raised pieces are formed is formed of a material having higher hardness than the material of the cylindrical portion on the side where the cut and raised pieces are not formed. It is a power steering device as described in above.
請求項 1 2の発明は、 切り起こし片は各コイルユニットのコイルヨークに それぞれ形成するものとし、 各コイルヨークは、 切り起こし片の形成位置が 互いに周回り方向に位置ズレして力/く一体に圧入されている請求項 1 0また は 1 1に記載のパワーステアリング装置である。  In the invention of claim 12, the cut and raised pieces are formed on the coil yokes of the respective coil units, and the positions of the cut and raised pieces are shifted from each other in the circumferential direction so that the force yokes are integrated. The power steering apparatus according to claim 10 or 11, wherein the power steering apparatus is press-fitted into the body.
請求項 1 3の発明は、 切り起こし片をコイルヨークに形成するにあたり、 コイルヨークは、 所定の板厚を備えた筒部を備えて形成され、 前記筒部の所 定の直径方向を基準線としたとき、 該基準線と筒部内径との交点における接 線と、 基準線と筒部外径との交点における接線とのあいだの範囲に対応する 筒外周面に位置し、 前記基準線に直交する切り起こし方向に基づいて切り起 こし片が形成されている請求項 1 0乃至 1 2の何れか一項に記載のパワース テアリング装置である。  According to the invention of claim 13, when the cut and raised piece is formed in the coil yoke, the coil yoke is formed to include a cylindrical portion having a predetermined plate thickness, and a predetermined diameter direction of the cylindrical portion is defined as a reference line. Is located on the cylinder outer peripheral surface corresponding to the range between the tangent at the intersection of the reference line and the cylinder inner diameter and the tangent at the intersection of the reference line and the cylinder outer diameter, The power steering apparatus according to any one of claims 10 to 12, wherein the cut and raised pieces are formed based on orthogonal cut and raised directions.
請求項 1 4の発明は、 コイルアッシーは、 カバ一体の開口端に筒長方向に 向けて突出形成される突出片を、 ベ一スプレー卜に開設された取り付け孔に 遊嵌状に貫通させ、 前記突出片の貫通端部をカシメ手段によりベースプレー 卜に固定するものとし、 カシメ手段は、 少なくとも一つの歯先で構成される 力シメ具を用い、 前記歯先を、 突出片の貫通端部の長尺方向に対し所定の傾 斜角度を存して当てがつてカシメて、 貫通端部が取り付け孔の少なくとも対 角方向の孔縁に向けて変形するように構成されている請求項 1乃至 1 3の何 れか一項に記載のパワーステアリング装置である。 According to the invention of claim 14, the coil assembly has a projecting piece formed to project toward the cylinder length direction at the opening end integrated with the cover so as to freely pass through the mounting hole provided in the base spray bowl, The penetrating end portion of the protruding piece is fixed to the base plate by a caulking means, and the caulking means uses a force caulking tool composed of at least one tooth tip, and the tooth tip is inserted into the penetrating end portion of the protruding piece. Clamping with a predetermined inclination angle with respect to the longitudinal direction of the 14. The power steering device according to claim 1, wherein the power steering device is configured to be deformed toward a hole edge in an angular direction.
請求項 1 5の発明は、 突出片の貫通端部は、 複数の歯先を用いて力シメら れる構成とし、 前記歯先は互いに平行状に設けられている請求項 1 4に記載 のパワーステアリング装置である。  The invention according to claim 15 is characterized in that the penetrating end portion of the protruding piece is configured to be force-squeezed using a plurality of tooth tips, and the tooth tips are provided in parallel to each other. It is a steering device.
発明の効果 The invention's effect
請求項 1の発明とすることにより、 部品点数の削減が図れて、 組み込み作 業を円滑、 かつ、 容易に行得るとともに、 組み込み後のコイルアッシーとセ ンサ回路基板との接続作業を不要にできて、 信頼性の向上を図れる。  According to the invention of claim 1, the number of parts can be reduced, the assembly work can be performed smoothly and easily, and the connection work between the coil assembly after assembly and the sensor circuit board can be made unnecessary. And improve reliability.
請求項 2の発明とすることにより、 組み込み作業を一層容易にすることが できる。  With the invention of claim 2, the assembling work can be further facilitated.
請求項 3の発明とすることにより、 コンパク ト化に寄与できる。  The invention of claim 3 can contribute to compactness.
請求項 4の発明とすることにより、 ベ一スプレー卜に歪みや変形が生じに <く、 一層高い信頼性を備えたパワーステアリング装置とすることができる 請求項 5の発明とすることにより、 センサァッシ一の保護部材を格別設け る必要がなく、 部品点数の削減を図れる。  According to the invention of claim 4, it is possible to provide a power steering device that is less likely to be distorted or deformed in the base spray bowl and has higher reliability. There is no need to install a single protective member, and the number of parts can be reduced.
請求項 6の発明とすることにより、 調整部品の調整をベースプレート側か ら行なうことができて、 センサアッシーをハウジングに組み込んだ後であつ ても調整作業を容易に行なうことができる。  According to the invention of claim 6, adjustment parts can be adjusted from the base plate side, and adjustment work can be easily performed even after the sensor assembly is assembled in the housing.
請求項 7の発明とすることにより、 半田付けの作業がやりやすく、 しかも With the invention of claim 7, it is easy to perform the soldering work, and
、 各半田付け部位の絶縁が確保されて信頼性のトルク検知センサを備えた信 頼性の高い/ ワーステアリング装置を提供できる。 It is possible to provide a highly reliable / war steering device equipped with a reliable torque detection sensor in which insulation of each soldering portion is ensured.
請求項 8の発明とすることにより、 ピン体と導電プレートとの組み込みを 容易に行えるうえ、 半田付け作業が容易になる。  With the invention of claim 8, the pin body and the conductive plate can be easily assembled and soldering work can be facilitated.
請求項 9の発明とすることにより、 半田付けの工程数を削減できてコスト 低下に寄与できる。  With the invention of claim 9, the number of soldering steps can be reduced, which can contribute to cost reduction.
請求項 1 0の発明とすることにより、 コイルユニットのカバ一体に対する 周回り方向の変位を規制できるものでありながら、 構成の簡略化、 部品点数 の削減が図れて、 信頼性の高い/ ワーステアリング装置とすることができる 請求項 1 1の発明とすることにより、 コイルユニットのカバ一体への安定 した固定力が得られる。 According to the invention of claim 10, the coil unit cover can be integrated. Although the displacement in the circumferential direction can be restricted, the configuration can be simplified and the number of parts can be reduced, so that a highly reliable / warter steering device can be obtained. Stable fixing force to the coil unit cover can be obtained.
請求項 1 2の発明とすることにより、 それぞれのコイルユニットのカバ一 体への固定力を、 安定、 かつ、 バラツキのない状態で、 しかも同様に得られ る。  According to the invention of claim 12, the fixing force of each coil unit to the cover body can be obtained in the same manner in a stable and non-uniform state.
請求項 1 3の発明とすることにより、 コイルアッシーの磁気回路への影響 を低減できる。  According to the invention of claim 13, the influence of the coil assembly on the magnetic circuit can be reduced.
請求項 1 4の発明とすることにより、 カバ一体をベースプレートに対して ガタつきなく固定することが可能となる。  According to the invention of claim 14, it is possible to fix the cover integral to the base plate without rattling.
請求項 1 5の発明とすることにより、 カバー体のガタつき規制を一層確実 に行うことができる。  According to the invention of claim 15, the backlash of the cover body can be regulated more reliably.
図面の簡単な説明 Brief Description of Drawings
[図 1]パワーステアリング装置の取り付け状態を説明する概略斜視図である。 FIG. 1 is a schematic perspective view for explaining a mounting state of a power steering device.
[図 2]パワーステアリング装置の背面図である。 FIG. 2 is a rear view of the power steering device.
[図 3]パワーステアリング装置の断面図である。 FIG. 3 is a cross-sectional view of a power steering device.
[図 4]図 4 (A) 、 (B) はそれぞれセンサアッシーの側面図、 図 4 (A) の X_X断面図である。  [FIG. 4] FIGS. 4 (A) and 4 (B) are a side view of the sensor assembly and an X_X cross-sectional view of FIG. 4 (A), respectively.
[図 5]図 5 (A) 、 (B) はそれぞれコイルユニットの側面図、 図 5 (A) の X_X断面図である。  [FIG. 5] FIGS. 5 (A) and 5 (B) are a side view of the coil unit and an X_X sectional view of FIG. 5 (A), respectively.
[図 6]図 6 (A) 、 (B) 、 (C) 、 (D) 、 (E) はそれぞれカバ一体の平 面図、 側面図、 図 6 (B) の X— X断面図、 他側面図、 底面図である。  [Fig.6] Fig.6 (A), (B), (C), (D), (E) are a plan view, side view, and X-X cross section of Fig.6 (B), etc. It is a side view and a bottom view.
[図 7]図 7 (A) 、 （B) 、 (C) はそれぞれべ一スプレートの側面図、 図 7 [Fig.7] Fig. 7 (A), (B) and (C) are side views of the base plate, Fig. 7
(A) の X— X断面図、 他側面図である。 FIG. 6A is a cross-sectional view taken along the line XX in FIG.
[図 8]図 8 (A) 、 （B) 、 (C) はそれぞれ基板支持体の側面図、 図 8 (A ) の X_X断面図、 図 8 (A) の Y_Y断面図である。 [図 9]図 9 (A) 、 (B) はそれぞれ基板の側面図、 側面図である。 [FIG. 8] FIGS. 8 (A), (B), and (C) are a side view of the substrate support, an X_X sectional view of FIG. 8 (A), and a Y_Y sectional view of FIG. 8 (A), respectively. [FIG. 9] FIGS. 9A and 9B are a side view and a side view of the substrate, respectively.
[図 10]図 1 0 (A) 、 (B) 、 (C) 、 (D) 、 (E) 、 (F) はそれぞれ 第二端子プレートの平面図、 一部断面正面図、 側面図、 第一端子プレートの 平面図、 一部断面正面図、 側面図である。 [Fig. 10] Fig. 10 (A), (B), (C), (D), (E), (F) are a plan view, a partially sectional front view, a side view, and a second view of the second terminal plate, respectively. FIG. 4 is a plan view, a partial cross-sectional front view, and a side view of a terminal plate.
[図 11 ]コイルアツシ一とセンサ回路基板との接続状態を説明する要部拡大斜 視図である。  FIG. 11 is an enlarged perspective view of a main part for explaining a connection state between a coil assembly and a sensor circuit board.
[図 12]図 1 2 (A) 、 (B) はそれぞれ第二の実施の形態におけるセンサァ ッシ一の組み込み過程における側面図、 他側面図である。  [FIG. 12] FIGS. 12 (A) and (B) are a side view and another side view in the process of incorporating the sensor chassis in the second embodiment, respectively.
[図 13]第三の実施の形態におけるセンサアッシーのパターン化した断面図で FIG. 13 is a cross-sectional view of a sensor assembly patterned in the third embodiment.
COる。 CO
[図 14]第四の実施の形態におけるコイルュニッ卜の積層状態を説明する作用 説明図である。  FIG. 14 is an operation explanatory view for explaining the laminated state of the coil unit in the fourth embodiment.
[図 15]第五の実施の形態におけるパワーステアリング装置の断面図である。  FIG. 15 is a cross-sectional view of a power steering apparatus in a fifth embodiment.
[図 16]図 1 6 (A) 、 (B) はそれぞれ第五の実施の形態におけるセンサァ ッシ一の側面図、 図 1 6 (A) の X_X断面図である。  [FIG. 16] FIGS. 16 (A) and 16 (B) are side views of the sensor chassis according to the fifth embodiment, respectively, and a sectional view taken along the line XX in FIG. 16 (A).
[図 17]図 1 7 (A) 、 (B) はそれぞれ第五の実施の形態におけるコイルュ ニットの側面図、 図 1 7 (A) の X— X断面図である。  [FIG. 17] FIGS. 17A and 17B are a side view of a coil unit according to the fifth embodiment, respectively, and a cross-sectional view taken along the line XX of FIG. 17A.
[図 18]図 1 8 (A) 、 (B) 、 (C) 、 (D) 、 (E) はそれぞれ第五の実 施の形態におけるカバ一体の平面図、 側面図、 図 1 8 (B) の X— X断面図 [FIG. 18] FIGS. 18 (A), (B), (C), (D), and (E) are a plan view, a side view, and FIG. ) X— X cross section
、 他側面図、 底面図である。 The other side view and bottom view.
[図 19]図 1 9 (A) 、 (B) はそれぞれ第五の実施の形態のコイルアッシー におけるコイルユニットの積層状態を説明する側面図、 図 1 9 (A) の底面 図である。  [FIG. 19] FIGS. 19A and 19B are a side view and a bottom view of FIG. 19A, respectively, illustrating the laminated state of the coil units in the coil assembly of the fifth embodiment.
[図 20]図 20 (A) 、 （B) 、 (C) はそれぞれ第六の実施の形態のセンサ アッシーの組み込み過程における側面図、 図 20 (A) の X— X断面図、 他 側面図である。  [FIG. 20] FIGS. 20 (A), (B), and (C) are side views in the process of assembling the sensor assembly of the sixth embodiment, respectively, a cross-sectional view taken along the line XX in FIG. It is.
[図 21]図 21 (A) 、 （B) 、 （C) はそれぞれ第六の実施の形態のカシメ 状態を説明する側面図、 要部の拡大図、 図 21 (B) における X矢視図であ る。 [FIG. 21] FIGS. 21 (A), (B), and (C) are side views for explaining the caulking state of the sixth embodiment, an enlarged view of the main part, and a view as seen from the arrow X in FIG. 21 (B). In The
[図 22]図 2 2 ( A ) 、 ( B ) はそれぞれ第七の実施の形態における力シメ状 態を説明する要部の側面図、 図 2 2 ( A ) における X _ X断面図である。 符号の説明  [FIG. 22] FIGS. 22 (A) and (B) are side views of the main part for explaining the force-squeezing state in the seventh embodiment, respectively, and are XX cross-sectional views in FIG. 22 (A). . Explanation of symbols
1 ステアリングホイ一ル  1 Steering wheel
2 ステアリングシャフト  2 Steering shaft
3 パヮ一ステアリング装置  3-part steering system
4 第一ハウジング  4 First housing
6 出力軸  6 Output shaft
7 ト一ション/く一  7 Torsion / Kuichi
8 ウォームホイール  8 Worm wheel
9 ウォーム軸  9 Worm shaft
1 0 スリーブ  1 0 Sleeve
1 1 センサアッシー  1 1 Sensor assembly
1 2 コィゾレアッシ一  1 2
1 3 第一コイルュニット  1 3 First coil unit
1 4 第二コイルュニット  1 4 2nd coil unit
1 5 カバー体  1 5 Cover body
1 6 皿バネ  1 6 Belleville spring
1 7 ベ一スプレート  1 7 Base plate
1 7 h ビード  1 7 h bead
1 8 基板支持体  1 8 Substrate support
1 9 センサ回路基板  1 9 Sensor circuit board
2 1 制御部  2 1 Control unit
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
つぎに、 本発明の第一の実施の形態について、 図面に基づいて説明する。 図面において、 1は、 車体に回転自在に設けられるステアリングホイール (操作ハンドル） であって、 該ステアリングホイ一ル 1には、 ステアリング シャフト （回転軸） 2の一端 （先端） 部が連結され、 ステアリングシャフト 2の他端 （基端） 部に本発明が実施されたパワーステアリング装置 3が設け られるが、 これらの構成は従来通りとなっている。 Next, a first embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a steering wheel (operation handle) that is rotatably provided on a vehicle body. The steering wheel 1 includes a steering wheel. One end (front end) of the shaft (rotating shaft) 2 is connected, and the other end (base end) of the steering shaft 2 is provided with the power steering device 3 in which the present invention is implemented. It has become.
[0010] 前記パワーステアリング装置 3を構成するハウジング Hは、 ステアリング シャフト 2の軸芯方向に二つ割り状に形成された第一、 第二ハウジング 4、 5を一体化することにより構成されている。 前記第一、 第二ハウジング 4、 5には、 ステアリングシャフト 2の軸芯と同芯となる関係で貫通孔 4 a、 5 aが連通状に開設されており、 これら貫通孔 4 a、 5 aには、 ステアリング シャフト 2の他端部に連動連結される出力軸 6力 軸受け 4 b、 5 bにより 軸承される状態で回転自在に支持されている。  The housing H configuring the power steering device 3 is configured by integrating first and second housings 4 and 5 formed in a split shape in the axial direction of the steering shaft 2. In the first and second housings 4 and 5, through holes 4 a and 5 a are opened in communication with each other so as to be concentric with the axis of the steering shaft 2. These through holes 4 a and 5 a Is supported rotatably by the output shaft 6 force bearings 4 b and 5 b which are linked to the other end of the steering shaft 2 while being supported by the shaft.
尚、 前記ステアリングシャフト 2は、 車体側に固定されるステアリングコ ラム 2 aに回転自在に遊嵌しており、 該ステアリングコラム 2 aの他端部に は、 パワーステアリング装置 3のハウジング H (第一、 第二ハウジング 4、 5 ) を一体的に固定するための取り付けブラケット 2 bが外径側に向けて延 出状に形成されている。  The steering shaft 2 is freely loosely fitted to a steering column 2a fixed to the vehicle body side, and the other end of the steering column 2a has a housing H (first A mounting bracket 2b for integrally fixing the first and second housings 4, 5) is formed so as to extend toward the outer diameter side.
[001 1 ] 前記出力軸 6は、 第一、 第二ハウジング貫通孔 4 a、 5 aに対して貫通状 に支持されており、 第一ハウジング 4の貫通孔 4 aから突出する出力軸 6の —端部 （先端部） 6 aに、 前記ステアリングシャフト 2の他端部 （基端部） 2 cが予め設定される回転範囲において相対回転が許容され、 該回転範囲を 超える回転では一体回転する状態で連動連結されている。 そして、 前記出力 軸 6は筒孔 6 bを備えた円筒状に形成されており、 前記筒孔 6 b内には、 ト ルク検知センサを構成するトーシヨンバー 7が遊嵌されている。 そして、 ト —シヨンバ一 7は、 一端部 7 aがステアリングシャフト 2の他端面に凹設さ れた支持孔 2 dに圧入固定される一方、 他端部 7 bが出力軸 6の他端部 6 c に固定ピン 7 cを用いて一体的に固定されている。 これによつて、 後述する ように、 ステアリングホイール 1が操作されて、 ステアリングシャフト 2に 回転操作力が作用することに伴い、 トーシヨンバー 7に前記操作力 （トルク ) に対応した捩れが発生すると、 ステアリングシャフト 2と出力軸 6とのあ いだにおいて前記所定の回転範囲内において相対回転がなされるように設定 されている。 [001 1] The output shaft 6 is supported in a penetrating manner with respect to the first and second housing through holes 4a and 5a, and the output shaft 6 protrudes from the through hole 4a of the first housing 4. -Relative rotation is allowed in the rotation range in which the other end portion (base end portion) 2c of the steering shaft 2 is set in advance at the end portion (tip portion) 6a, and the rotation is integrally performed when the rotation exceeds the rotation range. It is linked and linked in a state. The output shaft 6 is formed in a cylindrical shape having a cylindrical hole 6b, and a torsion bar 7 constituting a torque detection sensor is loosely fitted in the cylindrical hole 6b. The torsion bar 7 has one end 7 a that is press-fitted into a support hole 2 d recessed in the other end surface of the steering shaft 2, while the other end 7 b is the other end of the output shaft 6. It is fixed integrally to 6 c using fixing pin 7 c. As a result, as described later, when the steering wheel 1 is operated and a rotational operation force is applied to the steering shaft 2, a twist corresponding to the operation force (torque) is generated in the torsion bar 7. Between shaft 2 and output shaft 6. In this case, the relative rotation is set within the predetermined rotation range.
[0012] さらに、 前記第一、 第二ハウジング 4、 5の突き当て部には、 ウォームホ ィ一ル収容室 W Rが形成されており、 該ゥォ一ムホイ一ル収容室 W Rには、 出力軸 6に一体的に外嵌されるウォームホイール 8が回転自在に収容されて いる。 また、 第一ハウジング 4には、 出力軸 6に対して直交方向に延出する ウォーム軸収容室 4 cが形成されており、 該ウォーム軸収容室 4 cに、 電動 モータ Mの駆動に伴い回転するウォーム軸 9が収容されており、 該ウォーム 軸 9外周のウォーム 9 aとウォームホイール 8とは、 ウォーム軸収容室 4 c と前記ウォームホイール収容室 W Rの周回り方向所定の箇所との連通部位に おいて嚙合することにより連動連結するように設定されている。 そして、 後 述するように、 電動モータ Mが駆動した場合に、 ウォーム軸 9、 ウォームホ ィ一ル 8、 出力軸 6が回転し、 ステアリングシャフト 2の回転作動をアシス 卜するように設定されている。  [0012] Further, a worm wheel storage chamber WR is formed at the abutting portion of the first and second housings 4 and 5, and the warm wheel storage chamber WR has an output shaft. A worm wheel 8 fitted integrally with 6 is rotatably accommodated. Further, the first housing 4 is formed with a worm shaft housing chamber 4 c extending in a direction perpendicular to the output shaft 6, and the worm shaft housing chamber 4 c rotates as the electric motor M is driven. The worm shaft 9 is accommodated, and the worm 9 a and the worm wheel 8 on the outer periphery of the worm shaft 9 are connected to the worm shaft housing chamber 4 c and a predetermined portion in the circumferential direction of the worm wheel housing chamber WR. In this way, it is set to be linked and linked by combining. As will be described later, when the electric motor M is driven, the worm shaft 9, the worm wheel 8, and the output shaft 6 are rotated, and the rotation operation of the steering shaft 2 is set to assist. .
尚、 出力軸 6の基端部は、 図示しないステアリングギア （操舵装置） 側の 部材 S Gに連動連結され、 出力軸 6の回転に伴いステアリングギアを作動し て、 車両の操向操作を行うように設定されている。  The base end of the output shaft 6 is linked to a steering gear (steering device) member SG (not shown), and the steering gear is operated as the output shaft 6 rotates to steer the vehicle. Is set to
[0013] 一方、 前記出力軸 6の先端部 6 a近傍部位には、 出力軸側検出用溝 6 dが 周回り方向に複数形成されている一方、 該出力軸側検出用溝 6 dの外周には 円筒状のスリーブ 1 0が相対回転自在に外嵌しており、 該スリーブ 1 0の先 端部が、 ステアリングシャフト 2の基端部 2 cに一体固定手段 （例えばカシ メ） を介して固定されている。 さらに、 前記スリーブ 1 0には、 前記出力軸 側検出用溝 6 dとは所定の対向状態でステアリングシャフト側検出用溝 1 0 aが筒部を貫通する状態で周回り方向に複数開設されている。 そして、 前述 したように、 ステアリングホイール 1が任意の操作力に基づいて操作がなさ れた場合に、 ステアリングシャフト 2と出力軸 6とのあいだに所定の回転範 囲内での相対回転がなされると、 ステアリングシャフト側検出用溝 1 0 aと 出力軸側検出用溝 6 dとの対向状態に位置ズレが生じるように設定されてい る。 On the other hand, a plurality of output shaft side detection grooves 6 d are formed in the circumferential direction in the vicinity of the tip portion 6 a of the output shaft 6, while the outer periphery of the output shaft side detection groove 6 d A cylindrical sleeve 10 is externally fitted so as to be relatively rotatable, and a front end portion of the sleeve 10 is attached to a base end portion 2c of the steering shaft 2 via an integral fixing means (for example, caulking). It is fixed. Further, the sleeve 10 is provided with a plurality of openings in the circumferential direction so that the steering shaft side detection groove 10a penetrates the cylindrical portion in a predetermined facing state with the output shaft side detection groove 6d. Yes. As described above, when the steering wheel 1 is operated based on an arbitrary operating force, a relative rotation within a predetermined rotation range is made between the steering shaft 2 and the output shaft 6. The steering shaft side detection groove 10 a and the output shaft side detection groove 6 d are set so as to be misaligned. The
[0014] そして、 前記スリーブ 1 0の外周には、 トルク検知センサを構成するセン サアッシー 1 1が固定されており、 該センサアッシー 1 1により、 前記ステ ァリングシャフト側検出用溝 1 0 aと出力軸側検出用溝 6 dとの対向状態に 生じる位置ズレ （ステアリングシャフト 2と出力軸 6との相対回転） に基い てト一ションバ一 7に作用するトルクを電気的に検知するように設定されて おり、 前記センサアッシー 1 1に本発明が実施されている。  [0014] A sensor assembly 11 constituting a torque detection sensor is fixed to the outer periphery of the sleeve 10, and the sensor assembly 11 allows the steering shaft side detection groove 10a to The torque acting on the torsion bar 7 is electrically detected based on the positional deviation (relative rotation between the steering shaft 2 and the output shaft 6) that occurs when facing the output shaft side detection groove 6d. The present invention is implemented in the sensor assembly 11.
前記センサアッシー 1 1に設けられるコイルアッシー 1 2は、 スリーブ 1 0の外周に一体的に外嵌し、 前記出力軸側検出用溝 6 dとステアリングシャ フト側検出用溝 1 0 aとの対向状態に位置ズレが生じることに基づいて磁束 量が変化する第一、 第二コイルユニット 1 3、 1 4を備えて構成されている 。 これら第一、 第二コイルユニット 1 3、 1 4は出力軸 6の軸芯方向に隣接 状に配設されており、 第一、 第二何れか一方のコイルユニット 1 3または 1 4は、 出力軸 6とステアリングシャフト 2とのあいだのトルク検知用であり 、 他方のコイルユニット 1 4または 1 3は、 コイルアッシー 1 2の温度変化 に伴う誤検知防止用であり、 このようにすることで、 センサアッシー 1 1に よる正確な検知作動が保証されるようにしている。  A coil assembly 12 provided in the sensor assembly 11 is integrally fitted around the outer periphery of the sleeve 10, and the output shaft side detection groove 6 d and the steering shaft side detection groove 10 a are opposed to each other. The first and second coil units 13 and 14 are configured to change the amount of magnetic flux based on the occurrence of positional deviation in the state. These first and second coil units 1 3 and 14 are arranged adjacent to each other in the axial direction of the output shaft 6, and either the first or second coil unit 13 or 14 It is for torque detection between the shaft 6 and the steering shaft 2, and the other coil unit 14 or 1 3 is for preventing false detection accompanying the temperature change of the coil assembly 1 2. Accurate detection by the sensor assembly 1 1 is guaranteed.
[0015] 前記各第一、 第二コイルュニット 1 3、 1 4は、 それぞれスリーブ 1 0に 外嵌する形状であって、 絶縁材で構成され、 互いに同形状に形成されたコィ ルポビン 1 3 a、 1 4 aに、 巻線 1 3 b、 1 4 bがそれぞれ巻装されたもの を、 磁性材で構成された有底筒状の第一、 第二のヨーク （本発明のコイルョ —クに相当する） 2 2、 2 3に内嵌せしめ、 第一、 第二の各ヨークカバ一 2 2 a、 2 3 aにより覆蓋されており、 これらの基本構成は同様に構成されて いる。 そして、 これら第一、 第二コイルュニット 1 3、 1 4は、 巻線 1 3 b 、 1 4 bに所定の電流を印加することにより、 ステアリングシャフト側検出 用溝 1 0 aと出力軸側検出用溝 6 dとの対向状態に位置ズレが生じることに 伴い、 ヨーク 2 2、 2 3およびヨークカバ一 2 2 a、 2 3 aの磁気に変化 （ 磁気変化） が生じ、 巻線 1 3 b、 1 4 bを流れる電流のインピーダンスが変 化するように構成されている。 [0015] Each of the first and second coil units 13 and 14 has a shape that is externally fitted to the sleeve 10 and is made of an insulating material. 1 4 a and windings 1 3 b and 1 4 b are wound respectively. The bottomed cylindrical first and second yokes made of a magnetic material (corresponding to the coil yoke of the present invention) It is fitted in 2 2 and 2 3 and covered with first and second yoke covers 1 2 2 a and 2 3 a, and these basic configurations are the same. The first and second coil units 13 and 14 are applied with a predetermined current to the windings 13 b and 14 b to detect the steering shaft side detection groove 10 a and the output shaft side detection. Along with the occurrence of misalignment in the state facing the groove 6d, a change occurs in the magnetism of the yokes 2 2 and 2 3 and the yoke covers 1 2 2 a and 2 3 a (magnetic change), and the windings 1 3 b and 1 4 Impedance of current flowing through b It is configured to become.
さらに、 ヨーク 2 2、 2 3の外周部にはコイルポビン 1 3 a、 1 4 a力、ら 延出する支持部 1 3 c、 1 4 (；カ^、 それぞれヨーク 2 2、 2 3の外周から突 出する状態で形成されており、 これら支持部 1 3 c、 1 4 cには、 各巻線 1 3 b、 1 4 bの巻き出し端部と巻き終り端部に接続される各一対のコイル側 端子となる第一、 第二ピン体 1 3 d、 1 4 dがそれぞれ周回り方向に所定間 隙を存する状態で絶縁状となり、 支持部 1 3 c、 1 4 cから外径側にそれぞ れ突出する状態で配設されるように構成されている。  Further, the outer periphery of the yokes 2 2 and 2 3 is provided with the coil pobbins 1 3 a and 14 a force, and the support portions 1 3 c and 14 (extending from the outer periphery of the yokes 2 2 and 2 3 respectively. These support portions 1 3 c and 1 4 c are formed in a protruding state, and each pair of coils connected to the unwinding end and the winding end of each winding 1 3 b and 14 b The first and second pin bodies 1 3 d and 14 d, which are the side terminals, are insulative with a predetermined gap in the circumferential direction, and the support parts 1 3 c and 14 c move from the outer diameter side to the outer diameter side. Each is configured to protrude.
[001 6] そして、 これら第一、 第二コイルユニット 1 3、 1 4は、 ヨークカバ _ 2 2 a、 2 3 a同士が当接 （対向） する状態で軸芯方向に隣接し、 かつ、 周回 り方向に一ズレさせた状態で積層することにより、 第一、 第二ピン体 1 3 d 、 1 4 dが周回り方向に隣接する （周回り方向に所定間隙を存する） 状態と なって、 カバ一体 1 5に収容されるように設定されている。 前記カバ一体 1 5は、 リング状の底片 1 5 aと筒部 1 5 bとを備えた有底筒状に構成されて おり、 第一、 第二コイルュニット 1 3、 1 4は、 カバ一体 1 5の筒部 1 5 b に皿バネ 1 6とともに収容されるように設定されている。 そして、 前記カバ 一体 1 5は、 筒部 1 5 bを切り欠いた切り欠き部 1 5 cが形成され、 該切り 欠き部 1 5 cから第一、 第二ピン体 1 3 d、 1 4 dが外径側に突出するよう に設定されている。 さらに、 前記カバ一体 1 5は、 筒部 1 5 bの開口端縁部 から外径側に延出するフランジ部 1 5 dが形成されており、 該フランジ部 1 5 dの外周縁部に、 周回り方向複数 （三個） の取り付け爪片 1 5 eが形成さ れている。 [001 6] The first and second coil units 1 3 and 1 4 are adjacent to each other in the axial direction in a state in which the yoke covers _ 2 2 a and 2 3 a are in contact with (opposite) with each other. The first and second pin bodies 1 3 d and 1 4 d are adjacent to each other in the circumferential direction (with a predetermined gap in the circumferential direction). It is set to be accommodated in the hippo unity 1 5. The cover integral 15 is configured as a bottomed cylinder having a ring-shaped bottom piece 15 a and a cylindrical portion 15 b, and the first and second coil units 1 3, 14 are integrated with the cover 1 It is set to be accommodated together with the disc springs 16 in the 5 cylindrical portions 15 b. The cover integral 15 is formed with a notch 15 c formed by notching the cylindrical portion 15 b, and the first and second pin bodies 13 d and 14 d are formed from the notch 15 c. Is set to protrude to the outer diameter side. Further, the cover integrated 15 is formed with a flange portion 15 d extending from the opening edge of the cylindrical portion 15 b to the outer diameter side, and on the outer peripheral edge of the flange portion 15 d, A plurality (three) of mounting claw pieces 15 5 e in the circumferential direction are formed.
ここで、 コイルアッシー 1 2は、 第一、 第二コイルュニット 1 3、 1 4の コイルポビン 1 3 a、 1 4 aの筒孔、 ヨーク 2 2、 2 3、 ヨークカバ一 2 2 a、 2 3 a、 カバ一体底片 1 5 a、 皿バネ 1 6にそれぞれ開設される貫通孔 は、 出力軸 6の軸芯と同芯となる連通状貫通孔 1 2 aに構成されている。  Here, the coil assembly 1 2 includes the first and second coil units 1 3 and 1, the coil bobbins 1 3 a and 1 4 a, the cylindrical holes, the yokes 2 2 and 2 3, the yoke covers 1 2 2 a and 2 3 a, The through holes formed in the cover-integrated bottom piece 15 a and the disc spring 16 are respectively formed as continuous through holes 12 a that are concentric with the axis of the output shaft 6.
[001 7] 1 7は、 センサアッシー 1 1を一体化するための長方形状のベ一スプレー 卜であって、 該ベースプレート 1 7は、 長方形状の金属製板材で形成されて おり、 ベースプレート 1 7の長手方向一半部には、 コイルアッシー 1 2の連 通状貫通孔 1 2 aと略同径か僅かに大径な貫通孔 1 7 aが開設され、 さらに 、 貫通孔 1 7 aの外周縁部には周回り方向複数箇所 （三箇所） に力シメ用取 り付け孔 1 7 bが形成されている。 そして、 前記コイルアッシー 1 2は、 ベ —スプレート 1 7の他方側プレート面 1 7 cに対向せしめ、 連通状貫通孔 1 2 aとべ一スプレート 1 7の貫通孔 1 7 aとを同芯状とし、 コイルアッシー 1 2をベースプレート貫通孔 1 7 aの外周縁部に突きあて、 カバ一体取り付 け爪片 1 5 eをベースプレート力シメ用取り付け孔 1 7 bに挿し込んでカシ メ付けることにより、 ベースプレート 1 7に一体的に組み込まれるように設 定されている。 そして、 この組み込み状態において、 コイルアッシー 1 2は 、 第一、 第二コイルユニット 1 3、 1 4力 カバ一体底片 1 5 aとべ一スプ レート 1 7とのあいだにおいて皿バネ 1 6の押圧力により出力軸 6の軸芯方 向に弾圧された状態となり、 周回り方向、 軸芯方向の位置決めがなされた状 態でベースプレート 1 7に固定されるように設定されている。 また、 ベース プレート 1 7は、 コイルアッシー 1 2が設けられない長手方向他半部が、 本 発明の延出プレート部に相当しており、 該他半部はコイルアッシー 1 2の軸 芯に対し直交方向に延出する状態となっている。 [001 7] 1 7 is a rectangular base spray rod for integrating the sensor assembly 1 1, and the base plate 17 is formed of a rectangular metal plate. In the half of the longitudinal direction of the base plate 17, a through hole 1 7 a having a diameter substantially the same as or slightly larger than the continuous through hole 1 2 a of the coil assembly 1 2 is opened. On the outer peripheral edge of 7a, force shim mounting holes 17b are formed at a plurality of locations (three locations) in the circumferential direction. The coil assembly 12 faces the other side plate surface 17 c of the base plate 17, and the continuous through hole 12 a and the through hole 17 a of the base plate 17 are concentric. The coil assembly 1 2 against the outer peripheral edge of the base plate through-hole 1 7 a, and the cover integrated mounting claw piece 15 5 e into the base plate force shim mounting hole 1 7 b Therefore, it is set to be integrated into the base plate 17. In this assembled state, the coil assembly 12 is moved by the pressing force of the disc spring 16 between the first and second coil units 13 and 14 and the cover integral bottom piece 15 a and the base plate 17. It is set to be fixed to the base plate 17 in a state in which the output shaft 6 is pressed in the axial direction and positioned in the circumferential direction and the axial direction. In addition, the other half of the base plate 17 where the coil assembly 12 is not provided corresponds to the extending plate portion of the present invention, and the other half corresponds to the axis of the coil assembly 12. It is in a state extending in the orthogonal direction.
そして、 前記ベースプレート 1 7の他半部 （延出プレート部） であって、 コィルァッシ一 1 2の隣接部位となる他方側プレート面 1 7 cには、 樹脂材 で形成された矩形枠状の基板支持体 1 8が設けられるが、 該基板支持体 1 8 は、 基板支持体 1 8に収容されるセンサ回路基板 1 9とともに螺子 1 8 aを 用いて固定されており、 これによつて、 センサ回路基板 1 9は、 コイルアツ シ一 1 2の外径方向に位置して配設されるように設定されている。 尚、 基板 支持体 1 8は、 螺子 1 8 aによる固定がなされるが、 さらに、 基板支持体 1 8には一端側に突出する係止爪片 1 8 bが形成され、 該係止爪片 1 8 bが、 ベースプレート 1 7に開設された爪取り付け孔 1 7 dに抜け止め状に止着さ れるように設定されている。  A rectangular frame-shaped substrate formed of a resin material on the other side plate surface 17 c which is the other half portion (extension plate portion) of the base plate 17 and is adjacent to the coil 12. A support body 18 is provided, and the substrate support body 18 is fixed together with a sensor circuit board 19 accommodated in the substrate support body 18 using a screw 18a, whereby a sensor The circuit board 19 is set so as to be positioned in the outer diameter direction of the coil assembly 1 2. The substrate support 18 is fixed by a screw 18 a, and the substrate support 18 is further formed with a locking claw piece 1 8 b protruding to one end side. 1 8 b is set so as to be secured to the claw mounting hole 17 d formed in the base plate 17.
—方、 前記センサ回路基板 1 9は、 基板支持体 1 8の底片 1 8 cに近接対 向状に収容されており、 該底片 1 8 cに開設された貫通孔 1 8 dを介して対 向するべ一スプレート 1 7の他方側プレート面 1 7 c、 基板支持体底片 1 8 cとは所定間隙を存する状態で配設されていて、 第一、 第二コイルユニット 1 3、 1 4の軸芯方向に直交する状態、 即ち、 カバー体 1 5外周から外径方 向に突出する第一、 第二ピン体 1 3 d、 1 4 dの突出方向に対して平行状態 となっている。 そして、 前記センサ回路基板 1 9と、 第一、 第二コイルュニ ット 1 3、 1 4の巻線 （巻き出し端部、 巻き終り端部） 1 3 b、 1 4 bに導 電する各一対の第一、 第二ピン体 1 3 d、 1 4 dの突出端部とのあいだには 、 基板側端子となる各ニ枚づつ、 都合四枚の第一、 第二端子プレート （導電 プレート） 24、 25が配設され、 これら第一、 第二端子プレート 24、 2 5を介して第一、 第二ピン体 1 3 d、 1 4 dと回路基板 1 9とのあいだの電 気的な接続がなされるように構成されている。 On the other hand, the sensor circuit board 19 is in close proximity to the bottom piece 1 8 c of the board support 18. The other side plate surface 1 7 c of the base plate 17 facing through the through hole 18 8 d opened in the bottom piece 1 8 c, the substrate support bottom piece 1 8 c Is arranged in a state having a predetermined gap, and is perpendicular to the axial direction of the first and second coil units 13 and 14, that is, protrudes from the outer periphery of the cover body 15 in the outer diameter direction. The first and second pin bodies 13 3 d and 14 d are parallel to the protruding direction. The sensor circuit board 19 and the first and second coil units 1 3 and 1 4 (winding end portion and winding end portion) 1 3 b and 14 b respectively conducting electricity to the pair. The first and second pin bodies 1 3 d and 14 d between the projecting ends of the board side terminal each two pieces, four first and second terminal plates (conducting plate) 24 and 25 are arranged, and the electrical connection between the first and second pin bodies 1 3 d and 1 4 d through the first and second terminal plates 24 and 25 and the circuit board 19 is performed. It is configured to be connected.
前記第一、 第二端子プレート 24、 25は、 それぞれ長尺状の平板材をプ レート面が互いに対向するよう U字形状に折曲して形成されており、 一対の 脚片 24 a、 24 b、 25 a、 25 bと、 これら脚片 24 a、 24 b、 25 a、 25 bの基端部同士を一体的に連結する連結片 24 c、 25 cとで構成 されている。 これら各第一、 第二端子プレート 24、 25は、 基板支持体 1 8に形成される端子支持部 1 8 eに、 センサ回路基板 1 9を配設する前の段 階で固定されるように設定されており、 端子支持部 1 8 6に連結片24 £；、 25 cを圧入する等の固定手段を介して固定配設した後、 後述する状態でセ ンサ回路基板 1 9が配設されるように設定されている。 The first and second terminal plates 24, 25 are each formed by bending a long flat plate material into a U shape so that the plate surfaces face each other, and a pair of leg pieces 24a, 24 b, 25a, 25b, and connecting pieces 24c, 25c that integrally connect the base ends of these leg pieces 24a, 24b, 25a, 25b. These first and second terminal plates 24 and 25 are fixed to the terminal support portion 18 e formed on the substrate support 18 at the stage before the sensor circuit board 19 is disposed. The sensor circuit board 19 is disposed in a state described later after being fixedly disposed through a fixing means such as press-fitting the connecting piece 24 £ ; 25 c into the terminal support portion 1 86. Is set to
ここで、 コイルアッシー 1 2のカバ一体 1 5から突出する各一対の第一、 第二ピン体 1 3 d、 1 4 dの突出位置は、 第一、 第二コイルュニット 1 3、 1 4が軸芯方向に積層されているが故に、 軸芯方向に直交する （これら第一 、 第二ピン体 1 3 d、 1 4 dの突出方向に対して平行となる） センサ回路基 板 1 9からの距離がそれぞれ異なり、 本実施の形態では、 第一コイルュニッ ト 1 3から突出する第一ピン体 1 3 dの方が、 第二コイルュニット 1 4から 突出する第二ピン体 1 4 dよりもセンサ回路基板 1 9に近付いて配設されて いる。 そこで、 前記一対の脚片 2 4 a、 2 4 b、 2 5 a、 2 5 bのうち、 第 ―、 第二ピン体 1 3 d、 1 4 dとの接続側となる一方の脚片に相当するコィ ル接続側脚片 2 4 a、 2 5 aの軸芯方向の長さ H 1、 H 2は、 それぞれ第一 、 第二ピン体 1 3 d、 1 4 dと回路基板 1 9とのあいだの距離を配慮して、 第二コイル接続側脚片 2 5 aが第一コイル接続側脚片 2 4 aよりも長く （H 2 > H 1 ) 形成されていて、 該部位の長さが異なること以外は、 第一、 第二 端子プレート 2 4、 2 5を同様の形状に形成されている。 Here, the protruding positions of the pair of first and second pin bodies 1 3 d and 1 4 d protruding from the cover assembly 15 of the coil assembly 1 2 are such that the first and second coil units 1 3 and 1 4 are shafts. Since they are stacked in the core direction, they are orthogonal to the axis direction (they are parallel to the protruding direction of these first and second pin bodies 13 d and 14 d) from the sensor circuit board 19 In this embodiment, the first pin body 1 3 d protruding from the first coil unit 1 3 is more sensitive to the sensor circuit than the second pin body 1 4 d protruding from the second coil unit 1 4. Placed near the board 1 9 Yes. Therefore, out of the pair of leg pieces 2 4 a, 2 4 b, 2 5 a, 2 5 b, one leg piece on the connection side to the first and second pin bodies 1 3 d, 14 d Corresponding lengths H 1 and H 2 in the axial direction of the coil connection side leg pieces 2 4 a and 2 5 a are respectively the first and second pin bodies 13 d and 14 d and the circuit board 19. In consideration of the distance between the second coil connecting side leg piece 25a, the first coil connecting side leg piece 25a is longer than the first coil connecting side leg piece 24a (H2> H1). Except for the difference, the first and second terminal plates 24, 25 are formed in the same shape.
[0020] 前記第一、 第二端子プレート 2 4、 2 5の他方の脚片に相当し、 センサ回 路基板 1 9に接続される基板接続側脚片 2 4 b、 2 5 bは、 プレート幅が細 幅となるよう形成されている一方、 センサ回路基板 1 9には前記基板接続側 脚片 2 4 b、 2 5 bがそれぞれ貫通するための貫通孔 1 9 aが形成されてい る。 そして、 第一、 第二端子プレート 2 4、 2 5が予め固定されている基板 支持体 1 8に対しセンサ回路基板 1 9を組み込むが、 このとき、 基板側脚片 2 4 b、 2 5 bを、 前記貫通孔 1 9 aの一方側プレート面 1 9 b側から他方 側プレート面 1 9 c側に向けて貫通させる状態で組み込み、 基板接続側脚片 2 4 b、 2 5 bの先端部 （貫通端部） 2 4 d、 2 5 d力 センサ回路基板 1 9の第一、 第二ピン体 1 3 d、 1 4 dが配設される側である他方側プレート 面 1 9 cから突出するように設定されている。  [0020] The board connection side leg pieces 2 4 b and 25 b corresponding to the other leg pieces of the first and second terminal plates 24 and 25 and connected to the sensor circuit board 19 are plates. On the other hand, the sensor circuit board 19 is formed with through holes 19 a through which the board connection side leg pieces 24 b and 25 b pass, respectively. Then, the sensor circuit board 19 is incorporated into the board support 18 with the first and second terminal plates 2 4 and 2 5 fixed in advance. At this time, the board-side leg pieces 2 4 b and 2 5 b Is inserted in a state of penetrating from the one side plate surface 19 b side of the through hole 19 a toward the other side plate surface 19 c side, and the tip ends of the board connection side leg pieces 2 4 b and 25 b (Through end) 2 4 d, 25 d force Forced from the other side plate surface 19 c where the first and second pin bodies 1 3 d, 14 d of the sensor circuit board 19 are disposed It is set to be.
[0021 ] —方、 第一、 第二端子プレート 2 4、 2 5のコイル接続側脚片 2 4 a、 2 5 aの先端部であって、 第一、 第二ピン体 1 3 d、 1 4 dとの接続部は、 プ レート幅が幅広に形成され、 該プレート幅方向中間部において、 センサ回路 基板 1 9側に向けて切り起こした折り曲げ片 （ピン受け片） 2 4 e、 2 5 e 力 第一、 第二ピン体 1 3 d、 1 4 dの突出方向と平行となる状態で形成さ れている。 尚、 このように、 幅方向中間部に折り曲げ片 2 4 e、 2 5 eを形 成することにより、 該折り曲げ片 2 4 e、 2 5 eの両側には、 第一、 第二ピ ン体 1 3 d、 1 4 dの突出方向、 センサ回路基板 1 9に直立する方向に起立 する起立片 2 4 f 、 2 5 f がそれぞれ形成されている。  [0021] —Method, first and second terminal plates 2 4 and 25 are coil connection side leg pieces 2 4 a and 2 5 a, respectively, and the first and second pin bodies 1 3 d and 1 The connecting part with 4d is formed with a wide plate width, and bent pieces (pin receiving pieces) 2 4 e, 2 5 cut and raised toward the sensor circuit board 19 side in the middle part of the plate width direction e force The first and second pin bodies 1 3 d and 14 d are formed in a state parallel to the protruding direction. In this way, by forming the bent pieces 2 4 e and 25 e at the intermediate portion in the width direction, the first and second pin bodies are provided on both sides of the bent pieces 2 4 e and 25 e. Standing pieces 2 4 f and 2 5 f standing up in the protruding direction of 1 3 d and 14 d and in the direction standing upright on the sensor circuit board 19 are formed.
[0022] ところで、 コイルアッシー 1 2は、 センサ回路基板 1 9、 第一、 第二端子 プレート 2 4、 2 5等の部材が組み込まれたべ一スプレート 1 7に組み込む ように設定されており、 該組み込みにおいて、 コイルアッシー 1 2から突出 する四本の第一、 第二ピン体 1 3 d、 1 4 dを第一、 第二端子プレート 2 4 、 2 5に組み込むことになるが、 この場合に、 第一、 第二ピン体 1 3 d、 1[0022] By the way, the coil assembly 12 includes the sensor circuit board 19, the first terminal, and the second terminal. It is set to be incorporated in the base plate 1 7 in which members such as plates 2 4 and 2 5 are incorporated, and in this incorporation, the four first and second pin bodies 1 3 projecting from the coil assembly 1 2 d, 1 4 d will be incorporated into the first and second terminal plates 2 4, 2 5. In this case, the first and second pin bodies 1 3 d, 1
4 dの突出部を、 コィル接続側脚片 2 4 a、 2 5 aの折り曲げ片 2 4 e、 24 d protruding part, coil connection side leg piece 2 4 a, 2 5 a bent piece 2 4 e, 2
5 eに対向させる状態とするだけで、 第一、 第二端子プレート 2 4、 2 5へ の組み込みができるようになつており、 第一、 第二ピン体 1 3 d、 1 4 dと 第一、 第二端子プレート 2 4、 2 5との組み込み作業が容易になるように構 成されている。 5 Just by making it face the e, it can be assembled into the first and second terminal plates 2 4 and 2 5, and the first and second pin bodies 1 3 d and 1 4 d and the first First, it is configured to facilitate the assembly work with the second terminal plates 2 4 and 2 5.
[0023] そして、 前記組み込み状態において、 第一、 第二端子プレート 2 4、 2 5 の両脚片 2 4 a、 2 4 b、 2 5 a、 2 5 bにおける半田付け作業がなされる 力 この場合に、 ベースプレート 1 7を作業台に載置した水平状態として安 定な姿勢とし、 この状態で、 センサ回路基板 1 9側では、 他方側プレート面 1 9 cから突出する貫通端部 2 4 d、 2 5 dを、 第一、 第二ピン体 1 3 d、 1 4 d側からセンサ回路基板 1 9に向く方向 （一方側に向く方向であって軸 芯方向、 センサ回路基板 1 9に直交する方向） においてセンサ回路基板他方 側プレート面 1 9 cに半田付けすることで、 センサ回路基板 1 9と第一、 第 二端子プレート 2 4、 2 5との接続がなされるように設定されている。 [0023] And in the assembled state, the soldering work is performed on both leg pieces 2 4a, 2 4b, 2 5a, 2 5b of the first and second terminal plates 2 4, 2 5 in this case In this state, the base plate 17 is placed in a stable position as a horizontal state, and in this state, on the sensor circuit board 19 side, the penetrating end 2 4 d protruding from the other side plate surface 19 c 2 5 d in the direction from the first and second pin bodies 1 3 d and 1 4 d to the sensor circuit board 19 (the direction to the one side is the axial direction, perpendicular to the sensor circuit board 19 Direction), the sensor circuit board 19 is connected to the first and second terminal plates 2 4 and 2 5 by soldering to the other side of the sensor circuit board 1 9 c. .
—方、 コイルアッシー 1 2の第一、 第二ピン体 1 3 d、 1 4 d側では、 前 記姿勢のままの状態において、 第一、 第二ピン体 1 3 d、 1 4 dの突出部が 長く対向するピン受け片 2 4 e、 2 5 eの対向部位を、 第一、 第二ピン体 1 3 d、 1 4 d側からセンサ回路基板 1 9に対して直交する方向 （軸芯方向、 センサ回路基板 1 9に直交する方向） において半田付けすることで、 第一、 第二ピン体 1 3 d、 1 4 dと第一、 第二端子プレート 2 4、 2 5との接続が なされるように構成されている。 -On the other hand, on the first and second pin bodies 1 3 d and 14 d side of the coil assembly 1 2, the projections of the first and second pin bodies 1 3 d and 14 d are maintained in the state described above. The pin receiving pieces 2 4 e and 2 5 e that are opposed to each other with the long section facing the sensor circuit board 19 from the first and second pin bodies 1 3 d and 1 4 d side (axis core Direction, the direction orthogonal to the sensor circuit board 1 9), the connection between the first and second pin bodies 1 3d and 1 4d and the first and second terminal plates 2 4 and 2 5 It is configured to be made.
[0024] 前記半田付けの作業において、 第一、 第二ピン体 1 3 d、 1 4 dは、 周回 り方向に隣接する第一、 第二ピン体 1 3 d、 1 4 d同士のあいだにそれぞれ 間隙が形成されて周回り方向に分散された状態となっている。 このため、 各 第一、 第二ピン体 1 3 d、 1 4 dにおける半田付けを軸芯方向から行うこと により半田付け作業が容易になり、 しかも、 各半田付け部の絶縁が確保しや すくなるように構成されている。 In the soldering operation, the first and second pin bodies 1 3 d and 1 4 d are between the first and second pin bodies 1 3 d and 1 4 d that are adjacent to each other in the circumferential direction. Each gap is formed and dispersed in the circumferential direction. Because of this 1st and 2nd pin bodies 1 3d and 1 4d are soldered from the axial direction to facilitate the soldering work, and the insulation of each soldering part is easily secured. Has been.
さらに、 この場合に、 各第一、 第二ピン体 1 3 d、 1 4 dをピン受け片 2 4 e、 25 eに対向させることにより、 第一、 第二ピン体 1 3 d、 1 4 dと 第一、 第二端子プレート 24、 25との対向面積が大きく確保されており、 半田付けによる接続が確実になるばかりでなく、 半田付けをセンサ回路基板 1 9に向けて直交する軸芯方向から実施したとき、 ピン受け片 24 e、 25 eにより溶出する半田を受け止めることができるので、 第一、 第二ピン体 1 3 d、 1 4 dと第一、 第二端子プレート 24、 25とのあいだに溶出する半 田の形状を安定したものにできて電気的な接続が確実になるうえ、 半田の供 給量を一定化することができる。 さらには、 溶出した半田が隣接する半田付 け部に干渉して絶縁が確保できなくなるような不具合が防止され、 絶縁性の 向上が図れるように構成されている。 そのうえ、 第一、 第二ピン体 1 3 d、 1 4 dの周回り方向両側部には、 起立片 24 f 、 25 f が対向状に配されて いるため、 第一、 第二ピン体 1 3 d、 1 4 dの周回り方向の移動規制がなさ れて、 半田付けされている接続部が破損してしまうような不具合を防止でき るように構成されている。 これによつて、 ベースプレート 1 7 (センサ回路 基板 1 9) を水平状態とする安定な姿勢において、 センサ回路基板 1 9側と 第一、 第二ピン体 1 3 d、 1 4 d側との両部位における半田付けを、 それぞ れ軸芯方向他方側から一方側に向く同一の方向から行うことができて半田付 けの工程を一回の工程にすることができ、 しかも、 各部位における半田付け による接続を確実な接続状態とすることができるように構成されている。 このようにすることにより、 前記第一、 第二ピン体 1 3 d、 1 4 dは、 第 ―、 第二端子プレート 24、 25を介し、 センサ回路基板 1 9の他方側プレ —ト面 1 9 c上に設けられる電子部品 1 9 dにより構成されるセンサ回路に 接続され、 これによつて、 コイルアッシー 1 2 (第一、 第二コイルユニット 1 3、 1 4のヨーク 22、 23およびヨークカバ一 22 a、 23 a) に生じ る磁気変化が検知 （センシング） されるように設定されている。 尚、 2 0は、 第一、 第二ピン体 1 3 d、 1 4 dの突出部とセンサ回路基板 基 1 9とを覆うフード体である。 Furthermore, in this case, the first and second pin bodies 1 3 d and 1 4 d are made to face the pin receiving pieces 2 4 e and 25 e by making the first and second pin bodies 1 3 d and 1 4 d face each other. The facing area between d and the first and second terminal plates 24 and 25 is large, and not only the connection by soldering is ensured, but also the axial core that is orthogonal to the sensor circuit board 19 When it is carried out from the direction, it is possible to receive the solder eluted by the pin receiving pieces 24 e, 25 e, so that the first and second pin bodies 1 3 d, 1 4 d and the first, second terminal plates 24, 25 In addition, the shape of the solder that elutes between the two can be made stable so that electrical connection is ensured and the amount of solder supplied can be made constant. Furthermore, it is possible to prevent the trouble that the eluted solder interferes with the adjacent soldered part and cannot secure the insulation, so that the insulation can be improved. In addition, since the standing pieces 24 f and 25 f are arranged opposite to each other on both sides of the first and second pin bodies 1 3 d and 1 4 d in the circumferential direction, the first and second pin bodies 1 3d and 14d are restricted in the movement direction in the circumferential direction, so that it is possible to prevent problems such as damage to the soldered connection. As a result, in a stable posture with the base plate 1 7 (sensor circuit board 1 9) in a horizontal state, both the sensor circuit board 19 side and the first and second pin bodies 13d and 14d side Soldering at each part can be performed from the same direction from the other side to one side in the axial direction, and the soldering process can be performed as a single process. It is configured so that the connection by attachment can be in a reliable connection state. In this way, the first and second pin bodies 1 3 d and 1 4 d are connected to the other plate surface 1 of the sensor circuit board 1 9 via the first and second terminal plates 24 and 25. 9 c is connected to a sensor circuit composed of electronic components 1 9 d, and thus, coil assemblies 1 2 (first and second coil units 1 3 and 1 4, yokes 22 and 23 and yoke covers 1 22 a, 23 a) Is set to detect magnetic changes. Reference numeral 20 denotes a hood that covers the protruding portions of the first and second pin bodies 13 3d and 14d and the sensor circuit board base 19.
[0026] このように構成されるセンサアッシー 1 1は、 ハウジング H (第一ハウジ ング 4 ) のウォームホイル室 W Rの一端側に形成される凹状のアツシ一取り 付け部 4 dに対してセンサ回路基板 1 9が対向する状態で、 ハウジング Hの —端側から組み込まれるように設定されている。 そして、 コイルアッシー 1 2に形成される連通状貫通孔 1 2 aおよびベースプレート貫通孔 1 7 aを、 出力軸 6外周に相対回転自在に外嵌するスリーブ 1 0の外周に、 相対回転自 在、 かつ、 同芯状となる状態で貫通させ、 ベースプレート 1 7の外縁部に開 設された固定用取り付け孔 1 7 eから挿入した取り付け螺子 1 7 f を用いて アッシー取り付け部 4 dに螺合することにより、 センサアッシー 1 1がハウ ジング Hに一体的に固定されている。 そして、 このように組み込むことによ り、 コイルアッシー 1 2とセンサ回路基板 1 9とが一度の組み込み作業によ つてハウジング Hに取り付けることが可能となり、 しかも、 コイルアッシー 1 2とセンサ回路基板 1 9との接続がなされた状態で組み込むことができる ように構成されている。 しかも、 このものでは、 メンテナンス時に、 センサ アッシー 1 1のみの交換についても容易に行えるように構成されている。  [0026] The sensor assembly 11 configured as described above is provided with a sensor circuit for the concave assembly mounting portion 4d formed on one end side of the worm wheel chamber WR of the housing H (first housing 4). It is set to be assembled from the end of the housing H with the board 19 facing each other. Then, the communication through hole 12a and the base plate through hole 17a formed in the coil assembly 12 are placed on the outer periphery of the sleeve 10 that is fitted to the outer periphery of the output shaft 6 so as to be relatively rotatable. In addition, it penetrates in a concentric state, and is screwed into the assembly attachment portion 4d using the attachment screws 17f inserted from the fixing attachment holes 17 7e opened on the outer edge of the base plate 17. Therefore, the sensor assembly 1 1 is fixed to the housing H integrally. In this way, the coil assembly 1 2 and the sensor circuit board 19 can be attached to the housing H by one assembling operation, and the coil assembly 1 2 and the sensor circuit board 1 can be attached. It is configured so that it can be installed in a state where it is connected to 9. In addition, it is configured so that only the sensor assembly 11 can be easily replaced during maintenance.
[0027] そして、 この組込み状態で、 センサアッシー 1 1は、 ベースプレート 1 7 がステアリングシャフト 2側である一端側に面するように組み込まれており 、 これによつて、 電子部品 1 9 dが配されるセンサ回路基板 1 9は、 一端側 をベースプレート 1 7により覆蓋され、 他端側をハウジング Hのアッシー取 り付け部 4 dにより覆蓋される状態となって、 つ一ド体 2 0とともにセンサ 回路基板 1 9の保護が図れるように構成されている。  In this assembled state, the sensor assembly 11 is assembled so that the base plate 17 faces the one end side that is the steering shaft 2 side, whereby the electronic component 19 d is arranged. One end of the sensor circuit board 19 is covered with the base plate 17 and the other end is covered with the assembly mounting portion 4d of the housing H. The circuit board 19 is configured to be protected.
また、 コイルアッシー 1 2の配設部位に対し、 センサ回路基板 1 9はコィ ルアッシー 1 2の外径方向に延出するように配設されている。 これによつて 、 ステアリングシャフト 2と出力軸 6との連結部において、 従来のセンサ回 路基板を軸芯方向に長く設ける場合のように軸芯方向に長いスペースを確保 する必要がなく、 コイルアッシー 1 2を配設するのに必要なスペースだけを 確保すれば、 コイルアッシー 1 2とセンサ回路基板 1 9との両者を配設する ことができるように構成されている。 Further, the sensor circuit board 19 is arranged so as to extend in the outer diameter direction of the coil assembly 12 with respect to the arrangement site of the coil assembly 12. As a result, a long space in the axial direction is secured at the connecting portion between the steering shaft 2 and the output shaft 6 as in the case where a conventional sensor circuit board is provided long in the axial direction. It is configured so that both the coil assembly 1 2 and the sensor circuit board 19 can be provided if only the space necessary for installing the coil assembly 1 2 is secured. .
[0028] そして、 センサアッシー 1 1は、 ステアリングシャフト 2が出力軸 6に対 して相対回転してトーシヨンバー 7に捻れが生じる状態となると、 前述した ように、 出力軸側検出用溝 6 dとステアリングシャフト側検出用溝 1 0 aと の対向状態が変化し、 該変化に伴うコイルアッシー 1 2 (第一、 第二コイル ユニット 1 3、 1 4 ) の磁束変化が、 巻線 1 3 b、 1 4 bが接続されるセン サ回路基板 1 9においてインピーダンスの変化として検知される。 そして、 前記検知値は、 パワーステアリング装置 3近傍部位に配される制御部 2 1に 出力され、 該制御部 2 1では、 前記検知値に基づいて演算等のデータ処理を 行い、 対応する駆動信号を電動モータ Mに出力することにより、 電動モータ Mが駆動してウォーム軸 9を回転せしめ、 これによつて、 ウォームホイール 8が出力軸 6とともに回転し、 もって、 ステアリングシャフト 2の回転操作 をアシス卜するように設定されている。  [0028] Then, when the steering shaft 2 rotates relative to the output shaft 6 and the torsion bar 7 is twisted, the sensor assembly 11 1 and the output shaft side detection groove 6d The state of opposition to the steering shaft side detection groove 10 a changes, and the change in magnetic flux of the coil assembly 1 2 (first and second coil units 1 3 and 1 4) due to the change changes to the windings 1 3 b, 1 4 Detected as a change in impedance at sensor circuit board 19 connected to b. Then, the detected value is output to a control unit 21 disposed in the vicinity of the power steering device 3, and the control unit 21 performs data processing such as calculation based on the detected value, and a corresponding drive signal. Is output to the electric motor M, and the electric motor M is driven to rotate the worm shaft 9, whereby the worm wheel 8 rotates together with the output shaft 6, thereby assisting the rotation operation of the steering shaft 2. It is set to hesitate.
[0029] ところで、 センサアッシー 1 1による精度の高いセンシングをするには、 コイルアッシー 1 2 (第一、 第二コイルユニット 1 3、 1 4 ) の軸芯と、 出 力軸 6、 ステアリングシャフト 2、 I シヨンバ一 7、 スリーブ 1 0の各軸 芯との位置関係が正確に同芯状に保持されることが必要である。 これに対し 、 本実施の形態のコイルアッシー 1 2は、 直接ハウジング Hに固定されるの ではなく、 ベースプレート 1 7上に支持されたものをハウジング Hに固定す る構成であるので、 コイルアッシー 1 2やべ一スプレート 1 7に何らかの負 荷が作用した場合に、 コイルアッシー 1 2の軸芯ズレが生じやすいことが想 定される。 そこで、 本実施の形態では、 ベースプレート 1 7のコイルアツシ - 1 2支持部外周部位に、 補強部として一方側プレート面 1 7 gから他端側 に向けて突出するよう押し出し加工されたビ一ド 1 7 hが所定間隙を存して リング状に形成されている。 これによつて、 ベースプレート 1 7やコイルァ ッシ _ 1 2に負荷が作用したような場合に、 ベースプレート 1 7に歪みや変 形が生じるような不具合を抑制でき、 コイルアッシー 1 2の軸芯と、 出力軸 6、 スリーブ 1 0の軸芯同士がずれてしまい、 正確なトルク検知ができなく なるようなことがないように構成されている。 By the way, in order to perform highly accurate sensing by the sensor assembly 1 1, the shaft core of the coil assembly 1 2 (first and second coil units 1 3 and 1 4), the output shaft 6, the steering shaft 2 It is necessary that the positional relationship between the shaft of the sleeve 7 and the sleeve 10 is accurately concentric. On the other hand, the coil assembly 12 of the present embodiment is not directly fixed to the housing H, but is configured to fix what is supported on the base plate 17 to the housing H. Therefore, the coil assembly 1 2 It is assumed that the axial misalignment of the coil assembly 1 2 is likely to occur when some load acts on the plate 1 17. Therefore, in the present embodiment, the bead 1 extruded to protrude from the one side plate surface 17 g as the reinforcing portion toward the other end side as a reinforcing portion on the outer periphery of the coil assembly-1 2 of the base plate 17. 7 h is formed in a ring shape with a predetermined gap. As a result, when a load is applied to the base plate 17 or coil cache _ 1 2, the base plate 17 is distorted or deformed. It is possible to prevent problems that may cause the shape of the coil assembly, so that the shaft core of the coil assembly 12 and the shaft cores of the output shaft 6 and the sleeve 10 do not shift to prevent accurate torque detection. It is configured.
尚、 ビ一ド 1 7 hは、 コイルアッシー 1 2のカバ一体 1 5がカシメ固定さ れるカシメ用取り付け孔 1 7 bの形成位置と略同芯円上に位置して形成され ており、 これによつて、 ビ一ド 1 7 hがコイルアッシー 1 2をべ一スプレー ト 1 7にカシメ固定する際にも効果的な補強をするように設定されている。  The bead 17 h is formed substantially concentrically with the formation position of the caulking attachment hole 17 b where the cover assembly 15 of the coil assembly 12 is fixed by caulking. Therefore, the bead 17 h is set so as to reinforce effectively when the coil assembly 12 is caulked to the base spray 17.
[0030] 叙述の如く構成された本形態において、 パワーステアリング装置 3は円滑 なステアリングホイール 1の操作を実現することができるが、 この場合に、 ステアリングシャフト 2とパワーステアリング装置 3の出力軸 6との相対回 転を検知するべく、 一対の第一、 第二コイルユニット 1 3、 1 4およびカバ —体 1 5とで構成されるコイルアッシー 1 2と、 該コイルアッシー 1 2の巻 線 1 3 b、 1 4 bが接続されるセンサ回路基板 1 9とは、 ベースプレート 1 7に組み込むことにより、 一つの組み込み部品 （アッシー） であるセンサァ ッシ _ 1 1 としてパワーステアリング装置 3に組み込まれている。 これによ つて、 部品点数の削減が図れて、 組み込み作業を円滑、 かつ、 容易に行うこ とが可能となる。 しかも、 このものでは、 コイルアッシー 1 2の巻線 1 3 b 、 1 4 b (第一、 第二ピン体 1 3 d、 1 4 d ) をセンサ回路基板 1 9に接続 した状態として、 組み込み部品化がなされているので、 コイルアッシーとセ ンサ回路基板とをそれぞれ個別にパワーステアリング装置に組み込む場合の ように、 これらを組み込んだ後に接続作業をする必要がなくなり、 予め接続 作業がなされることで作業性の向上とともに、 信頼性の向上を図ることが可 能となる。 そのうえ、 メンテナンス時に、 センサアッシー 1 1のみの交換を 容易に行うことができるので、 長期にわたる使用が可能となって、 コスト低 下に寄与できる。 [0030] In the present embodiment configured as described, the power steering device 3 can realize a smooth operation of the steering wheel 1. In this case, the steering shaft 2 and the output shaft 6 of the power steering device 3 In order to detect the relative rotation of the coil assembly, a coil assembly 1 2 composed of a pair of first and second coil units 1 3 and 1 4 and a cover body 15, and a winding 1 3 of the coil assembly 1 2 b, 1 4 b The sensor circuit board 1 9 to which b is connected is incorporated into the power steering device 3 as a sensor assembly _ 1 1, which is one assembly component (assembly), by incorporating it into the base plate 1 7. . As a result, the number of parts can be reduced, and the assembling work can be performed smoothly and easily. Moreover, in this case, the coil assembly 1 2 windings 1 3 b and 14 b (first and second pin bodies 1 3 d and 1 4 d) are connected to the sensor circuit board 19 and the built-in components Since the coil assembly and the sensor circuit board are individually incorporated into the power steering device, it is not necessary to perform the connection work after incorporating them, and the connection work is performed in advance. It is possible to improve workability and reliability. In addition, since only the sensor assembly 11 can be easily replaced during maintenance, it can be used over a long period of time, contributing to lower costs.
[0031 ] さらに、 本発明が実施されたものにあっては、 センサアッシー 1 1は、 コ ィルアッシー 1 2をスリーブ 1 0に外嵌せしめ、 ベ一スプレート 1 7をハウ ジング Hに固定するだけの作業でハウジング Hに固定できるので、 組み込み 作業を一層容易にすることができる。 [0031] Further, in the case where the present invention is implemented, the sensor assembly 1 1 only has the coil assembly 1 2 fitted on the sleeve 10 and the base plate 1 7 is fixed to the housing H. Since it can be fixed to the housing H by Work can be further facilitated.
[0032] しかも、 このものにおいては、 センサ回路基板 1 9がコイルアッシー 1 2 の外径方向に向けて延出する構成となっているので、 センサアッシー 1 1を 配設するにあたり、 出力軸 6の軸芯方向のスペースを小さくすることができ て、 コンパク ト化に寄与できる。  In addition, in this case, since the sensor circuit board 19 extends in the outer diameter direction of the coil assembly 12, the output shaft 6 is provided when the sensor assembly 11 is disposed. The space in the axial direction can be reduced, contributing to compactness.
[0033] そのうえ、 このものにおいては、 ベースプレート 1 7のコイルアッシー 1 2配設部位にビ一ド 1 7 hが形成されていて、 ベ一スプレート 1 7が歪んだ り、 変形したりすることを防止できて、 コイルアッシー 1 2と出力軸 6との 芯合せがずれて検知精度が低下するような不具合が低減され、 一層高い信頼 性を備えたセンサアッシー 1 1 とすることができる。  [0033] In addition, in this case, a bead 17 h is formed at the coil assembly 12 location of the base plate 17, and the base plate 17 is distorted or deformed. Therefore, it is possible to reduce the problem that the detection accuracy is lowered due to the misalignment between the coil assembly 12 and the output shaft 6, and the sensor assembly 11 having higher reliability can be obtained.
[0034] さらに、 このものにおいて、 センサアッシー 1 1をハウジング Hのアツシ —取り付け部 4 dに組み込むにあたり、 センサ回路基板 1 9は、 凹状に形成 されたアッシー取り付け部 4 dの開口をべ一スプレート 1 7が覆う状態で組 み込まれている。 この結果、 センサ回路基板 1 9力 金属製のアッシー取り 付け部 4 dと金属製のベ一スプレート 1 7とのあいだに配設されることにな つて、 センサ回路基板 1 9に対する異物混入対策や電波ノイズ対策等を格別 採用することなく、 センサ回路基板 1 9を保護することができて、 部品点数 の削減を図れる。 そのうえ、 このものでは、 アッシー取り付け部 4 dとべ一 スプレート 1 7とを固定することで、 金属材同士を直接当接した状態での固 定がなされるので、 センサ回路基板 1 9に対する電波ノイズの影響を一層低 減させることができる。  [0034] Further, in this case, when the sensor assembly 1 1 is assembled into the attachment 4d of the housing H, the sensor circuit board 19 is based on the opening of the assembly attachment 4d formed in a concave shape. It is assembled with plate 17 covered. As a result, the sensor circuit board 1 9 force is placed between the metal assembly mounting part 4d and the metal base plate 17 and measures against contamination of the sensor circuit board 19 The sensor circuit board 19 can be protected without specially adopting measures against noise and radio noise, and the number of parts can be reduced. In addition, in this case, by fixing the assembly mounting portion 4 d and the base plate 1 7, the metal material is fixed in a state of being in direct contact with each other. Can be further reduced.
[0035] また、 本発明が実施されたものにおいて、 トルク検知センサ （センサアツ シ一） 1 1を構成する第一、 第二コイルユニット 1 3、 1 4から引き出され る第一、 第二ピン体 1 3 d、 1 4 dは、 それぞれ周回り方向に隣接して配設 されるとともに、 これら第一、 第二コイルユニット 1 3、 1 4を積層する場 合に、 周回り方向に位置ズレさせた状態で積層してカバー体 1 5に組み込ま れ、 該カバ一体 1 5から突出する第一、 第二ピン体 1 3 d、 1 4 dが周回り 方向に位置ズレする状態として、 周回り方向に隣接する第一、 第二ピン体 1 3 d、 1 4 d同士のあいだにそれぞれ間隙が形成されるようになっている。 この結果、 第一、 第二ピン体 1 3 d、 1 4 dが周回り方向に分散されて、 従 来のようにピン体同士が軸芯方向に重なるようなことがなく、 第一、 第二端 子プレート 2 4、 2 5と接続するべく半田付けをする場合に、 半田付けの作 業がやりやすくなるばかりでなく、 各第一、 第二ピン体 1 3 d、 1 4 dにお ける半田付け部位の絶縁を確保し易くなつて、 信頼性の高いセンサアッシー 1 1 とすることができる。 [0035] In the embodiment of the present invention, the first and second pin bodies drawn from the first and second coil units 13 and 14 constituting the torque detection sensor (sensor assembly 1) 11 are used. 1 3 d and 14 d are arranged adjacent to each other in the circumferential direction, and when these first and second coil units 1 3 and 14 are stacked, they are displaced in the circumferential direction. In this state, the first and second pin bodies 13 3 d and 14 d protruding from the cover integrated body 15 are displaced in the circumferential direction. 1st, 2nd pin body adjacent to 1 A gap is formed between 3d and 14d. As a result, the first and second pin bodies 1 3 d and 1 4 d are dispersed in the circumferential direction, and the pin bodies do not overlap with each other in the axial direction as in the prior art. When soldering to connect to the two terminal plates 2 4 and 2 5, not only is the soldering work easier, but each 1st and 2nd pin bodies 1 3 d and 1 4 d As a result, it is easy to ensure the insulation of the soldered parts, so that a highly reliable sensor assembly 1 1 can be obtained.
[0036] さらに、 本実施の形態にあっては、 第一、 第二端子プレート 2 4、 2 5を それぞれ U字形に形成し、 第一、 第二端子プレート 2 4、 2 5と第一、 第二 ピン体 1 3 d、 1 4 dとの半田付けをする部位において、 第一、 第二ピン体 1 3 d、 1 4 dを、 第一、 第二端子プレート 2 4、 2 5の一方脚片であるコ ィル接続側脚片 2 4 a、 2 5 aの折り曲げ片 2 4 e、 2 5 eが形成される先 端面部位に対向せしめて半田付けする構成としたので、 第一、 第二ピン体 1 3 d、 1 4 dの第一、 第二端子プレート 2 4、 2 5への組み込みを容易に行 うことができる。 そのうえ、 コイル接続側脚へ 2 4 a、 2 5 aにおける半田 付けの方向を、 第一、 第二ピン体 1 3 d、 1 4 dからセンサ回路基板 1側を 向く軸芯方向とすることができて、 周回り方向に位置ズレする第一、 第二ピ ン体 1 3 d、 1 4 dの半田付けにおいて、 半田付け作業が容易になるうえ、 確実な絶縁を実現できる。  Furthermore, in the present embodiment, the first and second terminal plates 2 4 and 2 5 are each formed in a U-shape, and the first and second terminal plates 2 4 and 2 5 and the first and At the part to be soldered to the second pin body 1 3 d, 14 d, connect the first, second pin body 1 3 d, 14 d to one of the first, second terminal plates 24, 25 Since the coil connection side leg pieces 2 4 a and 2 5 a which are leg pieces 2 4 e and 2 5 e are formed so as to be opposed to the front end surface portions and soldered, the first, The second pin bodies 1 3 d and 14 d can be easily assembled into the first and second terminal plates 2 4 and 2 5. In addition, the direction of soldering to the coil connection side legs in 2 4 a and 2 5 a may be the axial direction from the first and second pin bodies 1 3 d and 1 4 d to the sensor circuit board 1 side. In addition, in the soldering of the first and second pin bodies 1 3 d and 14 d that are misaligned in the circumferential direction, soldering work is facilitated and reliable insulation can be realized.
[0037] また、 このものにおいて、 基板接続側脚片 2 4 b、 2 5 bは、 センサ回路 基板 1 9の貫通孔 1 9 aを、 一方側プレート面 1 9 bから他方側プレート面 1 9 cに向けて貫通しており、 貫通端部 2 4 d、 2 5 dを、 第一、 第二ピン 体 1 3 d、 1 4 d配設側である他方側プレート面 1 7 cにおいて半田付けす る構成としたので、 第一、 第二ピン体 1 3 d、 1 4 dとコイル接続側脚片 2 4 a、 2 5 aとの半田付けの方向と同様に、 センサ回路基板 1 9に直交する 軸芯方向において行うことができ、 両部位における半田付けを、 トルク検知 センサ 1 1の一つの姿勢において行うことができて、 工程数の削減を果して 、 コスト低下に寄与できる。 [0038] 尚、 本発明は前記実施の形態に限定されないことは勿論であって、 図 1 2 に示す第二の実施の形態のようにすることもできる。 [0037] Further, in this, the board connection side leg pieces 2 4 b and 2 5 b are arranged so that the through holes 19a of the sensor circuit board 19 are moved from the one side plate surface 19b to the other side plate surface 19. penetrating end 2 4 d, 2 5 d is soldered to the first and second pin bodies 13 3 d, 14 d on the other side plate surface 17 c In the same way as the soldering direction between the first and second pin bodies 1 3 d and 1 4 d and the coil connection side leg pieces 2 4 a and 2 5 a, the sensor circuit board 19 It can be performed in the direction of the perpendicular axis, and soldering at both parts can be performed in one posture of the torque detection sensor 11, which can reduce the number of processes and contribute to cost reduction. Note that the present invention is of course not limited to the above-described embodiment, and may be the second embodiment shown in FIG.
前記第二の実施の形態のセンサアッシー 2 6は、 ベ一スプレート 2 7の一 半部 2 7 aに、 第一の実施の形態と同様に構成されたコイルアッシー 1 2が 設けられ、 コイルアッシー 1 2の外径方向に延出するべ一スプレート 2 7の 他半部 2 7 bに、 基板支持体 2 8、 該基板支持体 2 8に収容される状態でセ ンサ回路基板 2 9が設けられる構成となっており、 これらの基本構成は前記 第一の実施の形態と同様である。  In the sensor assembly 26 of the second embodiment, a coil assembly 12 configured similarly to the first embodiment is provided in a half portion 27a of the base plate 27, and a coil In the other half 2 7 b of the base plate 2 7 extending in the outer diameter direction of the assembly 1 2, the substrate support 2 8, the sensor circuit board 2 9 being accommodated in the substrate support 2 8 These basic configurations are the same as those in the first embodiment.
そして、 このものでは、 センサ回路基板 2 9に、 調整自在な電子部品 2 9 a、 例えば、 センサ回路の静電容量値を微調整するトリマ等が設けられてい る。 一方、 基板支持体 2 8とべ一スプレート 2 7とには、 電子部品 2 9 a配 設箇所に対向する部位に位置して貫通孔 2 8 a、 2 7 cが連通状に開設され ており、 これら貫通孔 2 8 a、 2 7 cを介して電子部品 2 9 aがべ一スプレ —ト 2 7側から臨めるように構成されている。 これによつて、 センサアツシ _ 2 6を、 前記第一の実施の形態と同様にハウジング Hに組み込んだ状態に おいて、 ベ一スプレート 2 7が外部に露出するが、 該べ一スプレート 2 7側 から貫通孔 2 7 c、 基板支持体 2 8の貫通孔 2 8 aを介して電子部品 2 9 a の調整ができるように構成されている。  In this case, the sensor circuit board 29 is provided with an adjustable electronic component 29a, for example, a trimmer for finely adjusting the capacitance value of the sensor circuit. On the other hand, the substrate support 28 and the base plate 27 are provided with through-holes 2 8a and 2 7c in communication with the electronic component 29a located opposite the location. The electronic component 29a can be viewed from the base plate 27 side through the through holes 28a and 27c. As a result, the base plate 27 is exposed to the outside in a state where the sensor assembly _ 26 is assembled in the housing H in the same manner as in the first embodiment. The electronic component 29a can be adjusted from the 27 side through the through hole 27c and the through hole 28a of the substrate support 28.
ここで、 本実施形態において、 調整自在な電子部品 2 9 aは複数 （三個） 設けられているが、 これら電子部品 2 9 aは一箇所に集約して設けられてお り、 これによつて、 基板支持体 2 8とべ一スプレート 2 7に開設する貫通孔 2 8 a , 2 7 cを、 できるだけ少なく、 かつ、 小さくなるように配慮されて いる。 さらに、 このように複数の電子部品 2 9 aを集約して設けることによ り、 調整作業の作業性が向上するという利点もある。  Here, in the present embodiment, a plurality (three) of adjustable electronic components 29a are provided, but these electronic components 29a are provided in one place. Thus, the substrate support 28 and the through holes 28a and 27c opened in the base plate 27 are designed to be as small and as small as possible. Furthermore, by providing a plurality of electronic components 29 a in a concentrated manner, there is an advantage that the workability of the adjustment work is improved.
尚、 この場合に、 ベースプレート 2 7に、 貫通孔 2 7 cを開閉自在に覆蓋 するカバ一体を設けてもよく、 このようにすることにより、 センサ回路基板 2 9側に異物が混入するのを確実に防止することができる。  In this case, the base plate 27 may be provided with an integrated cover that covers the through hole 27c so that it can be opened and closed. By doing so, foreign matter can be prevented from entering the sensor circuit board 29 side. It can be surely prevented.
[0039] また、 図 1 3は、 第三の実施の形態におけるセンサアッシー 3 0をバタ一 ン化した図面であって、 このものでは、 金属製のベースプレート 3 1をハウ ジング Hに固定することによりセンサァッシ一 3 0が取り付けられており、 ベースプレート 3 1には基板支持体 3 2が固定され、 該基板支持体 3 2にセ ンサ回路基板 3 3が支持されている。 そして、 センサ回路基板 3 3のベース プレート 3 1側の面に電子部品 3 3 aが固定され、 該電子部品 3 3 aの調整 部 3 3 b力 ベ一スプレート 3 1 と基板支持体 3 2とに開設された貫通孔 3 1 a、 3 2 aを介して外部に露出するように構成されている。 そして、 この ものでも、 センサアッシー 3 0をハウジング Hに固定した状態で、 貫通孔 3 1 a、 3 2 aを介して調整部品 3 3 aの調整部 3 3 bを操作することができ て、 調整作業を作業性よく行なうことができるうえ、 センサ回路基板 3 3の 保護を図ることができる。 [0039] FIG. 13 shows the sensor assembly 30 according to the third embodiment. In this figure, a sensor base 30 is attached by fixing a metal base plate 3 1 to a housing H, and a substrate support 3 2 is fixed to the base plate 3 1. The sensor circuit board 33 is supported on the board support 3 2. Then, the electronic component 3 3 a is fixed to the surface of the sensor circuit board 3 3 on the base plate 3 1 side, and the adjustment part 3 3 b force base plate 3 1 of the electronic component 3 3 a and the substrate support 3 2 It is configured to be exposed to the outside through the through holes 3 1 a and 3 2 a opened in the above. Even in this case, with the sensor assembly 30 fixed to the housing H, the adjustment part 3 3 b of the adjustment part 3 3 a can be operated via the through holes 3 1 a and 3 2 a. Adjustment work can be performed with good workability, and the sensor circuit board 33 can be protected.
[0040] つぎに、 第四の実施の形態を図 1 4に基づいて説明するが、 第四の実施の 形態において、 コイルユニットを構成する一対の第一、 第二コイルユニット 3 4、 3 5の組み込み状態が、 前記第一の実施の形態と異なる構成となって いる。 つまり、 一対のコイルユニット 3 4、 3 5から外径方向に突出するピ ン体 3 4 a、 3 5 aを、 コイルユニットの軸方向一方の端面に沿う位置とし 、 ピン体 3 4 a、 3 5 a同士を周回り方向に位置ズレさせた状態でコイルュ ニット 3 4、 3 5を積層したとき、 各ピン体 3 4 a、 3 5 aの軸方向位置が 同じ位置となるように構成されている。 このように構成した場合では、 各コ ィルユニット 3 4、 3 5を同様に構成することができ、 しかも、 ピン体 3 4 a、 3 5 aの基板側からの距離が同様であるが故に、 基板側の端子プレート を同様のものを用いることができるという利点がある。  Next, a fourth embodiment will be described with reference to FIG. 14. In the fourth embodiment, a pair of first and second coil units 3 4, 3 5 constituting the coil unit is described. The built-in state is different from that of the first embodiment. In other words, the pin bodies 3 4 a and 3 5 a protruding in the outer diameter direction from the pair of coil units 3 4 and 3 5 are positioned along one end surface in the axial direction of the coil unit, and the pin bodies 3 4 a and 3 5 When the coil units 3 4 and 3 5 are stacked in a state where the positions of the pins a are shifted in the circumferential direction, the axial positions of the pin bodies 3 4 a and 3 5 a are configured to be the same position. Yes. In such a configuration, the coil units 3 4 and 3 5 can be configured in the same manner, and the distances from the substrate side of the pin bodies 3 4 a and 3 5 a are the same. There is an advantage that the same terminal plate can be used.
[0041 ] つぎに、 第五の実施の形態を図 1 5〜図 1 9に基づいて説明する。 第五の 実施の形態において、 コイルアッシー 3 6はつぎのように構成されている。 尚、 第五の実施の形態は、 第一の実施の形態と同様のセンサアッシー 1 1 を構成するものであり、 図中、 第一の実施の形態と同様の部材構成のものは 同じ符号を付すことによりここでの説明は省略する。  [0041] Next, a fifth embodiment will be described with reference to Figs. In the fifth embodiment, the coil assembly 36 is configured as follows. The fifth embodiment constitutes the same sensor assembly 1 1 as that of the first embodiment. In the figure, the same members as those of the first embodiment have the same reference numerals. The description here will be omitted.
前記コイルアッシー 3 6は、 一対の第一、 第二コイルユニット 3 7、 3 8 を備えて構成されており、 これら第一、 第二コイルユニット 3 7、 3 8は、 出力軸 6の軸芯方向に隣接して積層する状態で配設されており、 第一、 第二 何れか一方のコイルュニット 3 7または 3 8は、 出力軸 6とステアリングシ ャフト 2とのあいだのトルク検知用であり、 他方のコイルュニット 3 8また は 3 7は、 コイルアッシー 1 2の温度変化に伴う誤検知防止用であり、 この ようにすることで、 トルク検知センサ 1 1による正確な検知作動が保証され るようにしている。 The coil assembly 36 includes a pair of first and second coil units 3 7 and 3 8 These first and second coil units 37, 38 are arranged in a state of being stacked adjacent to each other in the axial direction of the output shaft 6, and any one of the first and second coils One coil unit 3 7 or 3 8 is for torque detection between the output shaft 6 and the steering shaft 2, and the other coil unit 3 8 or 3 7 is an error caused by the temperature change of the coil assembly 1 2. This is for detection prevention. By doing so, accurate detection operation by the torque detection sensor 11 is guaranteed.
[0042] 前記各第一、 第二コイルユニット 3 7、 3 8は、 それぞれスリーブ 1 0に 外嵌する形状であって、 絶縁材で構成され、 互いに同形状に形成されたコィ ルポビン 3 7 a、 3 8 aに、 巻線 3 7 b、 3 8 bがそれぞれ巻装されたもの を、 磁性材で構成された有底筒状の第一、 第二のヨーク （コイルヨーク） 3 9、 4 0に内嵌せしめ、 第一、 第二の各ヨークカバ _ 3 9 a、 4 0 aにより それぞれ覆蓋されている。 そして、 これらヨーク 3 9、 4 0の外周部には、 コイルポビン 3 7 a、 3 8 aから延出する支持部 3 7 c、 3 8 cがそれぞれ ヨーク 3 9、 4 0外周面から突出する状態で配設されており、 これら支持部 3 7 c、 3 8 cには、 各巻線 3 7 b、 3 8 bの巻き出し端部と巻き終り端部 に接続される各一対の第一、 第二ピン体 3 7 d、 3 8 dがそれぞれ外径側に 突出配設されている。  Each of the first and second coil units 3 7 and 3 8 has a shape that is fitted around the sleeve 10, is made of an insulating material, and is formed in the same shape as each other. , 3 8 a and windings 3 7 b and 3 8 b wound respectively, the bottomed cylindrical first and second yokes (coil yokes) made of magnetic material 3 9, 4 It is fitted in 0 and covered with first and second yoke covers_ 39a and 40a. Further, on the outer peripheral parts of these yokes 39, 40, the support parts 37c, 38c extending from the coil pobbins 37a, 38a protrude from the outer peripheral surfaces of the yokes 39, 40, respectively. The support portions 37 c and 38 c have a pair of first and second ends connected to the unwinding end and the winding end of the windings 37 b and 38 b, respectively. Bi-pin bodies 3 7 d and 3 8 d are provided so as to protrude to the outer diameter side.
[0043] そして前記ヨーク 3 9、 4 0は、 平板リング状の底面 3 9 b、 4 0 bと、 ヨーク筒部 3 9 c、 4 0 cとを備えた有底筒状に形成されており、 ヨーク筒 部 3 9 c、 4 0 c外周面には、 周回り方向に複数の切り起こし片 3 9 d、 4 0 dがそれぞれ形成されている。  [0043] The yokes 39, 40 are formed in a bottomed cylindrical shape having flat ring-shaped bottom surfaces 39b, 40b, and yoke tube portions 39c, 40c. A plurality of cut and raised pieces 39 d and 40 d are formed in the circumferential direction on the outer peripheral surfaces of the yoke tube portions 39 c and 40 c.
前記切り起こし片 3 9 d、 4 0 01は、 図1 7 ( A ) に示すように、 ヨーク 筒部 3 9 c、 4 0 cの各外周面において、 径方向に対向する一対のものが四 箇所、 周回り方向に都合八個のものが形成されており、 筒長方向に長く、 か つ、 外径方向に突出する形状に形成されている。 そして、 これら八個の切り 起こし片 3 9 d、 4 0 dは、 それぞれ切り起こし具をヨーク筒部 3 9 c、 4 0 cの外周面に押し当てて外径方向に向けて突出するように切り起こすこと (所謂ナール加工） により形成されているが、 その形成条件はつぎのように 設定されている。 As shown in FIG. 17 (A), the cut and raised pieces 3 9 d and 4 0 01 have four pairs of diametrically opposed outer peripheral surfaces of the yoke tube portions 3 9 c and 40 c. Eight parts are formed in the circumferential direction, and are formed in a shape that is long in the tube length direction and protrudes in the outer diameter direction. Then, these eight cut and raised pieces 39 d and 40 d are respectively pressed against the outer peripheral surfaces of the yoke cylinder portions 39 c and 40 c so as to protrude toward the outer diameter direction. Carving up It is formed by so-called knurl processing, and the formation conditions are set as follows.
つまり、 ヨーク底片 39 b、 4 O bに対し、 所定の直径方向を向く第一、 第二基準線 L 1、 L 2、 これら第一、 第二基準線 L 1、 L 2とヨーク筒部 3 9 c、 40 cの内径側縁部との交点における内径側接線 T N 1、 T N 2、 第 一、 第二基準線 L 1、 L 2とヨーク筒部 39 c、 40 cの外径側縁部との交 点における外径側接線 TS 1、 TS 2をそれぞれ設定したとき、 切り起こし 片 39 d、 40 dは、 ヨーク筒部 39 c、 40 cの前記内径側接線 T N 1、 T N 2と外径側接線 T S 1、 T S 2とのあいだに対応する範囲に形成される ように設定されている。 しかも、 切り起こし片 39 d、 40 dは、 ヨーク筒 部 39 c、 40 c外周面の前記範囲において、 切り起こし具を第一、 第二基 準線 L 1、 L 2に向けて直交する方向 （図 1 7 (A) の矢印方向） に押し当 てて、 ヨーク筒部 39 c、 40 cの外周面から外径側に突出する状態で切り 起こし形成されている。 因みに、 本実施の形態では、 第一、 第二基準線 L 1 、 L 2を用い、 前記各第一、 第二基準線 L 1、 L 2の径方向両側において、 さらに、 周回り方向両側から各第一、 第二基準線 L 1、 L 2に向けてそれぞ れ一つづつ切り起こし片 39 d、 4 O dを形成することにより、 各ヨーク筒 部 39 c、 40 cの外周に、 周回り方向に都合八個の切り起こし片 39 d、 40 dが形成されるように設定されている。  That is, the first and second reference lines L 1 and L 2 facing the predetermined diameter direction with respect to the yoke bottom pieces 39 b and 4 O b, and the first and second reference lines L 1 and L 2 and the yoke tube portion 3 Inner diameter side tangent at the intersection of inner diameter side edge of 9c, 40c TN 1, TN 2, First and second reference lines L1, L2 and outer edge side edge of yoke tube 39c, 40c When the outer diameter side tangents TS 1 and TS 2 are set at the intersection with the cut and raised pieces 39 d and 40 d, the inner diameter side tangents TN 1 and TN 2 of the yoke tube portions 39 c and 40 c are It is set so as to be formed in a range corresponding to the radial tangent line TS 1 and TS 2. In addition, the cut and raised pieces 39 d and 40 d are arranged in the direction perpendicular to the first and second reference lines L 1 and L 2 in the above range of the outer peripheral surfaces of the yoke cylinder portions 39 c and 40 c. (In the direction of the arrow in FIG. 17 (A)), it is cut and raised so as to protrude from the outer peripheral surface of the yoke tube portions 39c, 40c to the outer diameter side. Incidentally, in the present embodiment, the first and second reference lines L 1 and L 2 are used, on both sides in the radial direction of each of the first and second reference lines L 1 and L 2, and from both sides in the circumferential direction. By cutting and raising pieces 39 d and 4 O d one by one toward the first and second reference lines L 1 and L 2, respectively, on the outer periphery of each yoke tube portion 39 c and 40 c, Eight cut and raised pieces 39 d and 40 d are formed in the circumferential direction.
ここで、 基準線は必ずしも二本設定する必要はなく、 また、 二本以上であ つてもよい。  Here, it is not always necessary to set two reference lines, and two or more reference lines may be used.
このように、 切り起こし片 39 d、 40 dは、 ヨーク筒部 39 c、 40 c の前記内径側接線 T Ν 1、 Τ Ν 2と外径側接線 T S 1、 T S 2とのあいだに 対応する範囲に形成することにより、 切り起こし具による切り起こし加工の 際に発生する負荷がヨーク筒部 39 c、 40 cの板厚に沿うように作用する 構成として、 ヨーク筒部 39 c、 40 cの変形を防止することができ、 これ によって、 ヨーク 39、 40およびヨークカバ一 39 a、 40 aに生じる磁 気への影響を低減することができるように構成されている。 [0045] そして、 このように形成された第一、 第二コイルユニット 3 7、 3 8は、 第一、 第二コイルユニット 3 7、 3 8のヨークカバ _ 3 9 a、 4 0 a同士が 当接 （対向） する状態で軸芯方向に隣接し、 かつ、 第一、 第二ピン体 3 7 d 、 3 8 d同士が周回り方向に隣接するよう周回り方向に位置ズレさせた状態 で積層させて、 カバー体 4 1に収容されるが、 前記カバー体 4 1の材料は、 第一、 第二コイルユニット 3 7、 3 8のヨーク 3 9、 4 0の材料と硬度差の あるものが用いられ、 ヨーク 3 9、 4 0の硬度よりも低硬度の材料となって いる。 Thus, the cut and raised pieces 39d, 40d correspond to the space between the inner diameter side tangents T T 1, Τ Ν 2 and the outer diameter side tangents TS 1, TS 2 of the yoke tube portions 39c, 40c. By forming it in the range, the load generated during the cutting and raising process by the cutting and raising tool acts so as to follow the plate thickness of the yoke tube portions 39 c and 40 c. Deformation can be prevented, and thereby the influence on the magnetic field generated in the yokes 39 and 40 and the yoke covers 39a and 40a can be reduced. [0045] The first and second coil units 37 and 38 thus formed correspond to the yoke covers _ 39a and 40a of the first and second coil units 37 and 38, respectively. Stacked in a state where they are adjacent to each other in the axial direction in contact (opposite) and are displaced in the circumferential direction so that the first and second pin bodies 37d and 38d are adjacent to each other in the circumferential direction The cover body 41 is made of a material having a hardness difference from the material of the yokes 39, 40 of the first and second coil units 37, 38. Used, the material has a hardness lower than that of the yokes 39 and 40.
尚、 カバ一体 4 1は、 リング状の底片 4 1 aと筒部 4 1 bとを備えた有底 筒状に構成されており、 筒部 4 1 bの内径は、 前記ヨーク筒部 3 9 c、 4 0 cの切り起こし片 3 9 d、 4 0 dが形成されない部位における外径と略同様 に設定されている。 これによつて、 切り起こし片 3 9 d、 4 O dが形成され た第一、 第二コイルユニット 3 7、 3 8をカバ一体 4 1に収容する場合に、 第一、 第二コイルユニット 3 7、 3 8を圧入状に収容するように設定され、 該圧入により、 切り起こし片 3 9 d、 4 O dがカバ一体筒部 4 1 b内周面に 食い込んだ状態となり、 もって、 第一、 第二コイルュニット 1 3、 1 4が力 バー体筒部 4 1 bに固定され、 軸芯方向の移動、 周回り方向の移動が規制さ れるように設定されている。 ここで、 カバ一体 4 1は前記第一の実施の形態 のカバ一体と基本的に同様の構成であり、 4 1 cは切り欠き部、 4 1 dはフ ランジ部、 4 1 eは取り付け爪片である。  The cover unit 41 has a bottomed cylindrical shape including a ring-shaped bottom piece 4 1 a and a cylindrical portion 4 1 b. The inner diameter of the cylindrical portion 4 1 b is the yoke cylindrical portion 39. The c and 40 c cut-and-raised pieces 39 d and 40 d are set in substantially the same manner as the outer diameter at the portion where the cut and raised pieces 39 d and 40 d are not formed. As a result, when the first and second coil units 3 7 and 3 8 formed with the cut and raised pieces 3 9 d and 4 O d are accommodated in the cover unit 4 1, the first and second coil units 3 7 and 3 8 are set to be press-fitted, and the cut-and-raised pieces 3 9 d and 4 O d are bitten into the inner peripheral surface of the cover-integrated cylindrical portion 4 1 b by the press-fitting, so that the first The second coil units 13 and 14 are fixed to the force bar body cylinder portion 4 1 b so that movement in the axial direction and movement in the circumferential direction are restricted. Here, the cover integrated 41 is basically the same configuration as the cover integrated in the first embodiment, 4 1 c is a notch, 4 1 d is a flange, and 4 1 e is a mounting claw. It is a piece.
[0046] このとき、 第一、 第二コイルユニット 3 7、 3 8の各切り起こし片 3 9 d 、 4 0 dはそれぞれ径方向に対向する一対のものが複数対形成されており、 カバ一体 4 1に収容したとき、 カバ一体 4 1に対して芯ズレするようなこと がないように構成されている。 さらに、 第一、 第二コイルユニット 3 7、 3 8は、 同様の構成で形成されているが、 コイル側端子 （ピン体） 3 7 d、 3 8 dが周回り方向に隣接するよう周回り方向に位置ズレさせた状態で積層さ れている。 このとき、 周回り方向の位置ズレにより、 ヨーク筒部 3 9 c、 4 0 cに形成される切り起こし片 3 9 d、 4 0 d同士が圧入方向に重なること がない。 この結果、 カバ一体筒部 4 1 bに先行して圧入される第二コイルュ ニット 3 8の切り起こし片 4 0 dにより形成される筒部 4 1 b内周面の食い 込み部に、 後行して圧入される第一コイルュニット 3 7の切り起こし片 3 9 dが前記食い込み部が干渉することがなく、 筒部 4 1 b内周面には、 それぞ れ別な位置に食い込み部が形成されるように設定されている。 これによつて 、 第一、 第二コイルユニット 3 7、 3 8の両者が共に筒部 4 1 b内周面に確 実に食い込むことができて、 カバ一体 4 1への固定を確実に、 しかも、 両者 バラツキなく安定した状態で行うことができるように構成されている。 [0046] At this time, each of the cut and raised pieces 39d and 40d of the first and second coil units 37 and 38 has a plurality of pairs formed in the radial direction. When it is housed in 41, it is configured so that it will not be misaligned with the cover integral 41. In addition, the first and second coil units 3 7 and 3 8 are formed in the same configuration, but the coil side terminals (pin bodies) 3 7 d and 3 8 d are circumferentially adjacent to each other in the circumferential direction. They are stacked with their positions shifted in the direction. At this time, the cut-and-raised pieces 3 9 d and 40 d formed in the yoke tube portions 39 c and 40 c overlap each other in the press-fitting direction due to the displacement in the circumferential direction. There is no. As a result, the trailing portion of the cylindrical portion 4 1 b formed on the inner peripheral surface of the cylindrical portion 4 1 b formed by the cut-and-raised piece 40 0 d of the second coil unit 38 that is press-fitted prior to the cover-integrated cylindrical portion 41 b The cut-and-raised piece 3 9d of the first coil unit 3 7 that is press-fitted does not interfere with the biting portion, and the biting portion is formed at different positions on the inner peripheral surface of the cylindrical portion 4 1 b. Is set to be. As a result, both the first and second coil units 3 7 and 3 8 can bite into the inner peripheral surface of the cylindrical portion 4 1 b with certainty, and the fixing to the cover integrated 4 1 is ensured. Both are configured so that they can be performed in a stable state without variation.
[0047] そして、 前記コイルアッシー 3 6は、 カバ一体 4 1の開口側、 即ち、 第一 コイルユニット 3 7をべ一スプレート 1 7の他方側プレート面 1 7 cに対向 せしめ、 連通状貫通孔 1 2 aとべ一スプレート 1 7の貫通孔 1 7 aとを同芯 状として、 コイルアッシー 1 2をベースプレート貫通孔 1 7 aの外周縁部に 突きあて、 カバ一体取り付け爪片 1 5 eをべ一スプレート力シメ用取り付け 孔 1 7 bに挿し込んでカシメ付けることにより、 ベースプレート 1 7に一体 的に組み込まれるように設定されている。  [0047] The coil assembly 36 is connected to the open side of the cover 41, that is, the first coil unit 37 is opposed to the other side plate surface 17c of the base plate 17 and is connected through. Hole 1 2 a and base plate 1 7 through-hole 1 7 a are concentric, coil assembly 1 2 is pressed against the outer peripheral edge of base plate through-hole 1 7 a, and cover integral mounting claw piece 1 5 e It is set so that it can be integrated into the base plate 17 by inserting it into the base plate force mounting hole 1 7 b and caulking it.
[0048] このように、 本実施の形態では、 第一、 第二コイルユニット 3 7、 3 8を 軸芯方向の移動、 周回り方向の移動が規制される状態でカバー体 4 1に組み 込むことができるので、 前記第一の実施の形態のように、 カバ一体に皿パネ を設けることなく、 第一、 第二コイルュニット 3 7、 3 8を回り止めした状 態でベースプレート 1 7に組み込むことができ、 構成の簡略化、 部品点数の 削減が図れる。  Thus, in the present embodiment, the first and second coil units 37 and 38 are assembled in the cover body 41 in a state where movement in the axial direction and movement in the circumferential direction are restricted. Therefore, as in the first embodiment, the first and second coil units 3 7 and 3 8 are assembled into the base plate 17 without being provided with a pan panel integrally with the cover. This simplifies the configuration and reduces the number of parts.
[0049] さらに、 このように構成した場合では、 カバ一体 4 1を、 ヨーク 3 9、 4 0を構成する材料の硬度よりも低い硬度の材料で形成したので、 カバー体筒 部 4 1 bへの圧入する際に、 ヨーク 3 9、 4 0を変形させるような不具合が ないうえ、 切り起こし片 3 9 d、 4 0 d自体の変形を低減させることができ るので、 切り起こし片 3 9 d、 4 0 dによるカバ一体筒部 4 1 b内周面への 食い込みが確実になって、 第一、 第二コイルユニット 3 7、 3 8のカバ一体 4 1への安定した固定力を得ることができる。 [0050] しかも、 このものでは、 第一、 第二コイルユニット 3 7、 3 8を軸芯方向 に積層してカバ一体 4 1に圧入するものであるが、 第一、 第二コイルュニッ ト 3 7、 3 8とを同様の構成で形成しながら、 ピン体 3 7 d、 3 8 dが周回 り方向に位置ズレする状態で積層されているので、 各コイルュニット 3 7、 3 8の切り起こし片 3 9 d、 4 0 d同士も周回り方向に位置ズレしている。 このため、 第一、 第二コイルュニット 3 7、 3 8の各切り起こし片 3 9 d、 4 0 d同士が圧入方向に干渉することがなく、 第一、 第二コイルユニット 3 7、 3 8のカバ一体 4 1への固定力を、 安定、 かつ、 バラツキのない状態で 、 しかも、 同様の固定力を得ることができる。 [0049] Further, in the case of such a configuration, the cover integral 41 is formed of a material whose hardness is lower than the hardness of the material constituting the yokes 39, 40, so that the cover body cylinder portion 41b There is no problem of deforming the yokes 3 9 and 40 when press-fitting, and the deformation of the cut and raised pieces 3 9 d and 40 d itself can be reduced, so the cut and raised pieces 3 9 d , 40 d The cover integrated cylinder part 4 1 b The biting into the inner peripheral surface is ensured, and the first and second coil units 3 7 and 3 8 have a stable fixing force to the cover integrated 4 1. Can do. [0050] In addition, in this case, the first and second coil units 3 7 and 3 8 are stacked in the axial direction and press-fitted into the cover unit 41, but the first and second coil units 3 7 3 8 and 3 8 are formed in the same configuration, and the pin bodies 3 7 d and 3 8 d are laminated in a state where they are displaced in the circumferential direction. Therefore, the cut and raised pieces 3 of each coil unit 3 7 and 3 8 9 d and 40 d are also misaligned in the circumferential direction. Therefore, the cut and raised pieces 3 9 d and 40 d of the first and second coil units 3 7 and 3 8 do not interfere with each other in the press-fitting direction, and the first and second coil units 3 7 and 3 8 The fixing force to the cover 4 1 can be obtained in a stable and non-uniform state.
[0051 ] さらには、 切り起こし片 3 9 d、 4 0 dを、 ヨーク筒部 3 9 c、 4 0 cの 前記内径側接線 T N 1、 T N 2と外径側接線 T S 1、 T S 2とのあいだに対 応ずる範囲に形成下ので、 切り起こし具による切り起こし加工の際に発生す る負荷によりヨーク 3 9、 4 0を変形させてしまうような不具合を防止でき て、 コイルアッシー 3 6に基づく磁気回路への影響を低減することができ、 例えばコイルアッシー 3 6によるトルク検知を行う場合では、 その検知機能 を損なうことを防止できる。  [0051] Further, the cut and raised pieces 3 9 d, 40 d are connected to the inner diameter side tangents TN 1, TN 2 and the outer diameter side tangents TS 1, TS 2 of the yoke cylinder portions 39 c, 40 c. Since it is formed within the range that can be dealt with in a short time, it is possible to prevent a problem that the yoke 39, 40 is deformed by the load generated during the cutting and raising process by the cutting and raising tool, and based on the coil assembly 36. The influence on the magnetic circuit can be reduced. For example, when the torque detection is performed by the coil assembly 36, the detection function can be prevented from being impaired.
[0052] 尚、 切り起こし片を、 カバ一体の内周面に形成する構成としてもよく、 こ の場合では、 切り起こし片は、 内径側に突出して形成される。  [0052] It should be noted that the cut-and-raised piece may be formed on the inner peripheral surface of the cover, and in this case, the cut-and-raised piece is formed to protrude toward the inner diameter side.
[0053] さらに、 第六の実施の形態として、 カバ一体をべ一スプレートに力シメ固 定する構成を図 2 0、 2 1に基づいて説明する。 尚、 第六の実施の形態は、 第一の実施の形態と同様のセンサアッシー 1 1を構成するものであり、 図中 、 第一の実施の形態と同様の部材構成のものは同じ符号を付すことによりこ こでの説明は省略する。  Furthermore, as a sixth embodiment, a configuration in which the cover unit is fixed to the base plate by force squeezing will be described with reference to FIGS. The sixth embodiment constitutes the same sensor assembly 11 as that of the first embodiment. In the figure, the same members as those of the first embodiment have the same reference numerals. The explanation here is omitted.
第六の実施の形態のコイルアッシー 4 2は、 第一の実施の形態のカバ一体 と同様の基本構成であり、 底片 4 3 a、 筒部 4 3 b、 切り欠き部 4 3 c、 フ ランジ部 4 3 dを備えたカバ一体 4 3に、 第一、 第二コイルユニット 1 3、 1 4を皿バネ 1 6とともに収容して構成されており、 カバ一体フランジ部 4 3 dの外周縁部に形成された突出片 （取り付け爪片） 4 3 eをベースプレー ト 1 7の力シメ用取り付け孔 1 7 bにカシメ付けることで、 ベースプレートThe coil assembly 4 2 of the sixth embodiment has the same basic configuration as the cover integrated in the first embodiment, and includes a bottom piece 4 3 a, a cylindrical part 4 3 b, a notch part 4 3 c, and a flange. The cover integrated body 4 3 provided with the part 4 3 d is configured by accommodating the first and second coil units 1 3 and 1 4 together with the disc spring 16 and the outer peripheral edge of the cover integrated flange section 4 3 d. Projection piece (mounting claw piece) 4 3 e base play Gripping holes 1 7 7
1 7に固定されている。 このとき、 前記突出片 4 3 eは、 所定の板厚を備え て構成されており、 周回り方向長さは板厚よりも長く形成されている。 一方 、 ベ一スプレート 1 7の力シメ用取り付け孔 1 7 bは、 突出片 4 3 eの外形 状よりも僅かに大きく形成されており、 突出片 4 3 eは力シメ用取り付け孔1 is fixed to 7. At this time, the protruding piece 43 e is configured to have a predetermined plate thickness, and the length in the circumferential direction is longer than the plate thickness. On the other hand, the mounting holes 17 b for the force shims of the base plate 17 are formed slightly larger than the outer shape of the protruding pieces 4 3 e, and the protruding pieces 4 3 e are the mounting holes for the force shims.
1 7 bに対し遊嵌状に貫通するように構成されている。 1 7 b is configured to penetrate in a loose fit.
[0054] 4 4は、 力シメ具を構成する歯先であって、 該歯先 4 4は、 本実施の形態 においては、 突出片 4 3 eの板厚よりも長く設定された幅を有して形成され ているとともに、 歯先 4 4には、 一方の側面から他方の側面に向けて傾斜状 に切断された傾斜面 4 4 aが形成されている。 [0054] 4 4 is a tooth tip constituting a force-squeezing tool, and in the present embodiment, the tooth tip 44 has a width set longer than the plate thickness of the protruding piece 4 3e. In addition, the tooth tip 44 is formed with an inclined surface 44 a cut in an inclined manner from one side surface to the other side surface.
そして、 力シメ用取り付け孔 1 7 bを貫通してベースプレート 1 7の他端 側面から突出する突出片 4 3 eの貫通端部 4 3 f に対し、 該貫通端部 4 3 f の長尺方向 L、 即ち、 周回り方向の二箇所において、 それぞれカシメ具の歯 先 4 4を当てがつてべ一スプレート 1 7側に向けて押圧する状態で力シメる 力 このとき、 それぞれの歯先 4 4は、 図 2 1 ( A ) に示すように、 貫通端 部 4 3 f の長尺方向 Lに対して所定の傾斜角度 0 (本実施の形態では 4 5度 ) を存し、 かつ、 互いの傾斜面 4 4 a同士がそれぞれ反対方向を向く （対向 しない） 状態であてがわれるように設定されている。  Then, with respect to the through end 4 3 f of the protruding piece 4 3 e that penetrates the force shim mounting hole 17 b and protrudes from the other end side surface of the base plate 17, the longitudinal direction of the through end 4 3 f L, that is, the force squeezing force while pressing the tooth tips 4 4 of the caulking tool against the base plate 1 7 at the two circumferential positions. 4 has a predetermined inclination angle 0 (45 degrees in the present embodiment) with respect to the longitudinal direction L of the penetrating end portion 43f, as shown in FIG. The slanted surfaces 4 4 a are set so that they face each other in the opposite direction (not facing each other).
[0055] 前記状態において、 カバ一体 4 3のフランジ部 4 3 dに図示しないカシメ 受け部材を突きあてて固定し、 貫通端部 4 3 f に突き当てた歯先 4 4をカシ メ受け部材側 （一端側） に押し付けることにより貫通端部 4 3 f を力シメる ように構成されている。 このとき、 貫通端部 4 3 f には、 歯先 4 4の幅方向 に直交する方向 （図 2 1 ( A ) における矢印方向） のカシメカが作用し、 こ れによって、 貫通端部 4 3 f は、 図 2 1 ( B ) 、 （C ) に示すように、 第一 、 第二凹部 4 3 g、 4 3 hが形成される一方で、 歯先 4 4の幅方向に直交す る方向に変形した変形部 4 3 iが形成され、 これによつて、 変形部 4 3 i は 、 力シメ用取り付け孔 1 7 bの周回り方向一端部においては内径側の孔縁に 係止し、 周回り方向他端部においては外径側の孔縁に係止して、 少なくとも 対角方向の孔縁に係止する状態でカシメ固定がなされるように設定されてい る。 [0055] In the above state, a caulking receiving member (not shown) is abutted and fixed to the flange portion 4 3d of the cover integral 4 3 and the tooth tip 4 4 abutting against the penetrating end 4 3f is connected to the caulking receiving member side. It is configured to force-squeeze the through end 4 3 f by pressing against (one end side). At this time, the through end portion 4 3 f is acted on by a caulking mechanism in the direction perpendicular to the width direction of the tooth tip 4 4 (the arrow direction in FIG. 21 (A)). As shown in FIGS. 21 (B) and (C), the first and second recesses 43g and 43h are formed, while the direction perpendicular to the width direction of the tooth tips 44 is formed. The deformed deformed portion 4 3 i is formed, and thus the deformed portion 4 3 i is locked to the hole edge on the inner diameter side at one end in the circumferential direction of the force shim mounting hole 17 b, At the other end in the rotational direction, it is locked to the hole edge on the outer diameter side, and at least It is set so that it can be fixed in a state where it is locked to the edge of the diagonal direction.
[0056] このように、 突出片 4 3 eをべ一スプレート 1 7にカシメ固定したとき、 突出片 4 3 eと力シメ用取付け孔 1 7 bとのあいだに、 周回り方向の隙間が 形成されないことにより、 カバ一体 4 3、 即ち、 コイルアッシー 4 2のべ一 スプレート 1 7に対する周回り方向のガタつきを規制できるが、 さらには、 内径方向については、 力シメ用取り付け孔 1 7 bの周回り方向一端部におい て変形部 4 3 iが係止していることによりガタつき規制がなされ、 外径方向 については、 力シメ用取り付け孔 1 7 bの周回り方向他端部において変形部 4 3 iが係止していることにより径方向のガタつき規制がなされる。 しかも この場合に、 コイルアッシー 4 2には皿バネ 1 6とともに第一、 第二コイル ュニット 1 3、 1 4が収容される構成であるため、 皿バネ 1 6の弾性カを受 ける状態でカバ一体 4 3側の変形部 4 3 iが力シメ用取り付け孔 1 7 bに係 止する状態となっており、 コイルアッシー 4 2のべ一スプレート 1 7に対す る軸方向のガタつきが規制されて、 コィルァッシ一 4 2が軸芯ズレなく安定 した状態で固定されたセンサアッシー 1 1 となるように構成されている。 尚、 ベースプレート貫通孔 1 7 aの孔縁に形成されるビ一ド 1 7 hは、 コ ィルアッシー 4 2のカバ一体 4 3がカシメ固定される力シメ用取り付け孔 1 7 bの形成位置と略同芯円上に位置している。 これによつて、 コイルアツシ - 4 2をべ一スプレート 1 7にカシメ固定する際にビ一ド 1 7 hがべ一スプ レート 1 7の補強を効果的に行うように設定されている。  [0056] Thus, when the protruding piece 4 3 e is fixed to the base plate 17 by caulking, there is a circumferential clearance between the protruding piece 4 3 e and the force squeeze mounting hole 1 7 b. By not forming it, it is possible to control the backlash in the circumferential direction with respect to the base plate 1 7 of the cover assembly 4 3, that is, the coil assembly 4 2, but furthermore, in the inner diameter direction, the mounting holes for force shims 1 7 The deformation part 4 3 i is locked at one end in the circumferential direction of b, and rattling is controlled. The outer diameter direction is the other end in the circumferential direction of the force shim mounting hole 17 b. Since the deformable portion 4 3 i is locked, the radial play is restricted. In addition, in this case, since the first and second coil units 13 and 14 are accommodated together with the disc spring 16 in the coil assembly 42, the cover is received in a state where the elastic force of the disc spring 16 is received. Integral 4 3 side deformed part 4 3 i is in a state of being engaged with the force shim mounting hole 1 7 b, and the backlash in the axial direction with respect to the base plate 1 7 of the coil assembly 4 2 is restricted. Thus, the coil assembly 42 is configured to be a sensor assembly 11 1 that is fixed in a stable state with no axial misalignment. The bead 17 h formed at the hole edge of the base plate through hole 17 a is substantially the same as the formation position of the force shim mounting hole 17 b where the cover integral 43 of the coil assembly 42 is fixed by caulking. It is located on a concentric circle. Accordingly, the bead 17 h is set so as to effectively reinforce the base plate 17 when the coil assembly 42 is caulked and fixed to the base plate 17.
[0057] そして、 このように構成した場合では、 カバ一体 4 3のべ一スプレート 1 7に対する周回り方向のガタつきが規制されるばかりでなく、 径方向のガタ つきを規制することができて、 コイルアッシー 4 2をべ一スプレート 1 7に 対して軸芯ズレがないように構成することができ、 もって、 トルク検知を精 度良く行なうことができる信頼性の高いセンサアッシー 1 1を提供できる。  [0057] In the case of such a configuration, not only the backlash in the circumferential direction with respect to the base plate 17 of the cover integrated 43 but also the backlash in the radial direction can be controlled. Therefore, the coil assembly 4 2 can be configured so that there is no axial misalignment with respect to the base plate 1 7, so that a highly reliable sensor assembly 1 1 capable of accurately detecting torque can be obtained. Can be provided.
[0058] このように、 カバ一体 4 3に形成される突出片 4 3 eに対し、 歯先 4 4を 互いに平行となる位置関係とし、 かつ、 傾斜面 4 4 a同士が互いに対向しな いようにし、 突出片 4 3 e (貫通端部 4 3 f ) の長尺方向に対して傾斜状に あてがってカシメるようにしたので、 変形部 4 3 iが力シメ用取り付け孔 1 7 bの対角方向の両孔縁に係止するのが確実になって、 ガタつき規制を確実 に実現することができる。 さらに、 歯先 4 4の一方の側面にのみ傾斜面 4 4 aを形成することにより、 貫通端部 4 3 f の変形に方向性を持たすことが可 能となるが、 このものでは、 傾斜面 4 4 aが力シメ用取り付け孔 1 7 bの対 角方向の両孔縁側に向いているので、 該側への変形が促進されて、 ガタつき 規制が一層確実に行える。 [0058] In this way, with respect to the protruding piece 4 3 e formed on the cover integral 4 3, the tooth tips 4 4 are positioned in parallel to each other, and the inclined surfaces 4 4 a do not face each other. The projecting piece 4 3 e (through end 4 3 f) is inclined with respect to the longitudinal direction so that the deformed part 4 3 i is attached to the force shim mounting hole 1 7 b It is ensured that it is locked to both edge edges of the diagonal direction, and it is possible to reliably realize the rattling control. Furthermore, by forming the inclined surface 4 4 a only on one side surface of the tooth tip 4 4, it becomes possible to give direction to the deformation of the through end portion 4 3 f. Since 4 4 a faces the edge side of the diagonal holes of the force shim mounting hole 1 7 b, deformation to the side is promoted, and rattling can be more reliably controlled.
尚、 カバ一体をべ一スプレートにカシメ固定する手段としては、 突出片の 取り付け孔から突出する貫通端部をカシメ具の歯先でカシメて、 貫通端部の 変形部が取り付け孔の少なくとも対角方向の孔縁に係止するように構成する ことで、 周方向、 径方向のガタつきを規制することができる。 この場合に、 貫通端部、 取り付け孔、 カシメ具の歯先の各形状に対応して、 カシメ具とし て用いる歯先の形状、 歯先の数、 歯先を貫通端部に当てがう傾斜角度を適宜 設定することができる。  As a means for caulking and fixing the cover integral to the base plate, the through end projecting from the mounting hole of the projecting piece is caulked with the tooth tip of the caulking tool, and the deformed portion of the through end is at least paired with the mounting hole. By being configured to be engaged with the hole edge in the angular direction, the play in the circumferential direction and the radial direction can be restricted. In this case, the shape of the tooth tip used as the caulking tool, the number of tooth tips, and the inclination to apply the tooth tip to the penetrating end corresponding to the shape of the tooth tip of the caulking tool, the mounting hole, and the caulking tool The angle can be set as appropriate.
[0059] また、 図 2 2に第七の実施の形態を示すが、 このものでは、 ベ一スプレー ト 4 5の取り付け孔 4 5 aから突出するカバ一体突出片における貫通端部 4 6は、 該貫通端部 4 6の板厚より幅広な歯先 4 7を、 貫通端部 4 6の長尺方 向中間部において、 長尺方向に対して 4 5度の傾斜角度を存して当てがつて 力シメることにより、 貫通端部 4 6に凹部 4 6 aと取り付け孔 4 5 aの孔縁 に係止する変形部 4 6 bとが形成されるが、 この場合でも、 歯先 4 7の幅向 に直交するカシメカが取り付け孔 4 5 aの対角方向に向くことにより、 変形 部 4 6 b力 前記取り付け孔 4 5 aの対角方向に係止して、 周方向、 径方向 ともにガタつき規制をすることができて、 コイルアッシーのべ一スプレート へのガタつきのない固定を実現することができる。 FIG. 22 shows a seventh embodiment. In this embodiment, the through end portion 46 in the cover integral protruding piece protruding from the mounting hole 45 a of the base spray 45 is Apply a tooth tip 47 that is wider than the plate thickness of the through end portion 46 to the middle portion of the through end portion 46 with an inclination angle of 45 degrees with respect to the longitudinal direction. By squeezing the force, a concave portion 4 6 a and a deformed portion 4 6 b that engages with the hole edge of the mounting hole 4 5 a are formed in the through end portion 4 6, but even in this case, the tooth tip 4 7 The caulking mechanism that is orthogonal to the width direction of the mounting hole is directed in the diagonal direction of the mounting hole 45a, so that the deformed part 46b force is locked in the diagonal direction of the mounting hole 45a, both in the circumferential direction and in the radial direction. The rattling can be controlled, and the coil assembly can be fixed to the base plate without rattling.
産業上の利用可能性  Industrial applicability
[0060] 本発明は、 パワーステアリング装置の分野に有用であって、 コイルアツシ —を、 一対のコイルユニットと、 これらコイルユニットを外嵌する有底筒状 のカバー体とで構成し、 該カバー体の筒開口を、 センサ回路基板が組み込ま れたべ一スプレー卜に組み込んでセンサアッシーに構成することで、 部品点 数の削減が図れて、 組み込み作業を円滑、 かつ、 容易に行い得るとともに、 組み込み後のコィルァッシ一とセンサ回路基板との接続作業を不要にできて 、 信頼性の向上を図ることができる。 [0060] The present invention is useful in the field of power steering devices, and includes a coil assembly, a pair of coil units, and a bottomed cylindrical shape that externally fits these coil units. The cover opening is assembled into a sensor assembly by incorporating the cylinder opening of the cover body into a base spray bowl with a built-in sensor circuit board, which reduces the number of parts and facilitates assembly work. In addition, it can be easily performed, and the connection work between the coil assembly after mounting and the sensor circuit board can be made unnecessary, so that the reliability can be improved.

Claims

請求の範囲 The scope of the claims
[1 ] ステアリングシャフトの回転トルクを検知して、 該ステアリングシャフト の回転を電動モータの回転に基づいてアシス卜するパワーステアリング装置 において、 一端がステアリングシャフトに固定され、 他端が電動モータ側の 出力軸に固定されるト一シヨンバーと、 ト一シヨンバーに外嵌状に配されて 、 ト一シヨンバーの捩れに伴い磁気変化するコイルアッシーと、 コイルアツ シ一の磁気変化を検知するセンサ回路基板とを備えたトルク検知手段を構成 するにあたり、 前記コイルアッシーを、 軸方向に積層される一対のコイルュ ニットと、 これらコイルュニットを外嵌する有底筒状のカバ一体とで構成し 、 該カバ一体の筒開口を、 センサ回路基板が組み込まれたベースプレートに 組み込んでセンサァッシ一に構成したパワーステアリング装置。  [1] In a power steering device that detects the rotational torque of the steering shaft and assists the rotation of the steering shaft based on the rotation of the electric motor, one end is fixed to the steering shaft and the other end is an output on the electric motor side A torsion bar fixed to the shaft, a coil assembly that is externally fitted to the torsion bar and changes magnetically as the torsion bar is twisted, and a sensor circuit board that detects the magnetic change of the coil assembly. In configuring the torque detecting means provided, the coil assembly includes a pair of coil units stacked in the axial direction, and a bottomed cylindrical cover integral with which these coil units are fitted, and the cover-integrated cylinder Power that is integrated into the sensor chassis by incorporating the opening into the base plate with the sensor circuit board installed Steering device.
[2] センサアッシーは、 ベースプレートを介してパワーステアリング装置のハ ウジングに固定されている請求項 1に記載のパワーステアリング装置。  [2] The power steering device according to claim 1, wherein the sensor assembly is fixed to a housing of the power steering device via a base plate.
[3] ベースプレートは、 コイルアッシーの軸芯に対して直交方向に延出する延 出プレート部を備え、 センサ回路基板は、 前記延出プレート部に配設されて コイルアッシーの外径方向に位置するように構成されている請求項 1または 2に記載のパワーステアリング装置。  [3] The base plate includes an extension plate portion extending in a direction perpendicular to the axis of the coil assembly, and the sensor circuit board is disposed on the extension plate portion and is positioned in the outer diameter direction of the coil assembly. The power steering apparatus according to claim 1 or 2, wherein the power steering apparatus is configured to.
[4] ベースプレートは、 コイルアッシー配設部位の近傍に補強部が形成されて いる請求項 1乃至 3の何れか一項に記載のパワーステアリング装置。  [4] The power steering device according to any one of [1] to [3], wherein the base plate has a reinforcing portion formed in the vicinity of the coil assembly disposition site.
[5] ベースプレートは、 ハウジングに形成されるアッシー取り付け部に対し、 センサ回路基板取り付け側の面を対向させて取り付けられている請求項 2乃 至 4の何れか一項に記載のパワーステアリング装置。  [5] The power steering device according to any one of [2] to [4], wherein the base plate is attached with the surface on the sensor circuit board attachment side facing an assembly attachment portion formed in the housing.
[6] センサ回路基板は、 調整自在な電子部品が組み込まれるものとし、 ベース プレー卜には、 前記電子部品の調整をするための開口部が形成されている請 求項 1乃至 5の何れか一項に記載のパワーステアリング装置。  [6] The sensor circuit board includes an adjustable electronic component, and the base plate board is provided with an opening for adjusting the electronic component according to any one of claims 1 to 5. The power steering device according to one item.
[7] コイルアッシーを構成する一対のコイルユニットは、 それぞれ巻線が巻装 されたコィルポビンを筒状のコイルヨークに内装し、 巻線の両端部に接続す る一対のピン体をコイルヨーク外周から周回り方向に間隙を存して突出する よう構成されるものとし、 これらコイルユニットは、 周回り方向に位置ズレ して軸方向に積層してカバー体に内装され、 前記カバー体から外径方向に突 出する前記各一対のピン体同士は各ピン体のあいだに周回り方向の間隙が形 成され、 これらピン体の突出方向に平行状に配されるセンサ回路基板に導電 プレートを介してそれぞれ接続されている請求項 1乃至 1 0に記載のパワー ステアリング装置。 [7] The pair of coil units constituting the coil assembly includes a coil pobbin around which the winding is wound in a cylindrical coil yoke, and a pair of pin bodies connected to both ends of the winding are arranged on the outer periphery of the coil yoke. Protruding from the circumference with a gap in the circumferential direction These coil units are displaced in the circumferential direction, are laminated in the axial direction and are built in the cover body, and the pair of pin bodies protruding from the cover body in the outer diameter direction A gap in the circumferential direction is formed between the pin bodies, and each of the pin bodies is connected to a sensor circuit board arranged in parallel with the protruding direction of the pin bodies via a conductive plate. The power steering device described in 1.
[8] 導電プレートは、 長尺板材を U字状に折曲して一対の脚片とこれら脚片を 連結する連結片とにより構成され、 一方の脚片とピン体、 他方の脚片と基板 とがそれぞれ半田付けされるものとし、 前記一方の脚片は、 先端面が基板側 からピン体に直交状に対向して半田付けされている請求項 7に記載のパワー ステアリング装置。  [8] The conductive plate is composed of a pair of leg pieces and a connecting piece connecting these leg pieces by bending a long plate material into a U shape, and one leg piece and a pin body, and the other leg piece 8. The power steering apparatus according to claim 7, wherein the one leg piece is soldered so that a front end surface thereof is orthogonally opposed to the pin body from the board side.
[9] 導電プレートの他方の脚片は、 基板を貫通して基板のピン体配設側の面に 突出し、 該突出端部が半田付けされている請求項 8に記載のパワーステアリ ング装置。  [9] The power steering device according to [8], wherein the other leg piece of the conductive plate penetrates the substrate and protrudes to the surface of the substrate on which the pin body is disposed, and the protruding end is soldered.
[10] コイルアッシーを構成する一対のコイルユニットは、 それぞれ巻線が巻装 されたコイルポビンを筒状のコイルヨークに内装されるものとし、 各コイル ヨーク筒部あるいはカバー体筒部の一方の筒部には、 他方の筒部側に向けて 突出する切り起こし片を径方向に対向する部位に位置して形成され、 コイル ュニットはカバ一体に回り止め状に圧入するように構成されている請求項 1 乃至 9の何れか 1項に記載のパワーステアリング装置。  [10] In the pair of coil units constituting the coil assembly, each of the coil yoke cylinders or one of the cover body cylinders is configured such that a coil pobin around which the winding is wound is provided in a cylindrical coil yoke. The cut and raised pieces projecting toward the other cylindrical portion are formed in the portion that is opposed to each other in the radial direction, and the coil unit is configured to be press-fitted in a non-rotating manner integrally with the cover. Item 10. The power steering device according to any one of Items 1 to 9.
[1 1 ] 切り起こし片が形成される側の筒部の材料は、 切り起こし片が形成されな い側の筒部の材料よりも硬度の高い材料で形成されている請求項 1 0に記載 のパワーステアリング装置。  [1 1] The material of the cylinder part on the side where the cut and raised pieces are formed is formed of a material having a higher hardness than the material of the cylinder part on the side where the cut and raised pieces are not formed. Power steering device.
[12] 切り起こし片は各コイルュニッ卜のコイルヨークにそれぞれ形成するもの とし、 各コイルヨークは、 切り起こし片の形成位置が互いに周回り方向に位 置ズレしてカバ一体に圧入されている請求項 1 0または 1 1に記載のパワー ステアリング装置。  [12] The cut-and-raised pieces are formed on the coil yokes of the respective coil units, and each coil yoke is press-fitted integrally with the cover so that the positions of the cut-and-raised pieces are shifted from each other in the circumferential direction. Item 10. The power steering device according to claim 1 or 1.
[13] 切り起こし片をコイルヨークに形成するにあたり、 コイルヨークは、 所定 の板厚を備えた筒部を備えて形成され、 前記筒部の所定の直径方向を基準線 としたとき、 該基準線と筒部内径との交点における接線と、 基準線と筒部外 径との交点における接線とのあいだの範囲に対応する筒外周面に位置し、 前 記基準線に直交する切り起こし方向に基づいて切り起こし片が形成されてい る請求項 1 0乃至 1 2の何れか一項に記載のパワーステアリング装置。 [13] In forming the cut and raised pieces on the coil yoke, the coil yoke And a tangent at the intersection of the reference line and the inner diameter of the cylindrical portion, and a reference line and the outer diameter of the cylindrical portion. The cut-and-raised piece is formed based on the cut-and-raised direction perpendicular to the reference line and located on the outer peripheral surface of the cylinder corresponding to the range between the tangent line and the tangent line. The power steering device according to claim 1.
[14] コイルアッシーは、 カバ一体の開口端に筒長方向に向けて突出形成される 突出片を、 ベースプレートに開設された取り付け孔に遊嵌状に貫通させ、 前 記突出片の貫通端部をカシメ手段によりベースプレー卜に固定するものとし 、 カシメ手段は、 少なくとも一つの歯先で構成される力シメ具を用い、 前記 歯先を、 突出片の貫通端部の長尺方向に対し所定の傾斜角度を存して当てが つてカシメて、 貫通端部が取り付け孔の少なくとも対角方向の孔縁に向けて 変形するように構成されている請求項 1乃至 1 3の何れか一項に記載のパヮ —ステアリング装置。 [14] The coil assembly is formed by projecting a projecting piece projecting from the opening end of the cover toward the cylinder length direction into a mounting hole provided in the base plate in a loose-fitting manner. The crimping means uses a force crimping tool composed of at least one tooth tip, and the tooth tip is predetermined with respect to the longitudinal direction of the penetrating end of the protruding piece. The piercing end of the mounting hole is deformed toward at least the diagonal edge of the mounting hole. The described power steering device.
[15] 突出片の貫通端部は、 複数の歯先を用いてカシメられる構成とし、 前記歯 先は互いに平行状に設けられている請求項 1 4に記載のパワーステアリング 装置。  15. The power steering apparatus according to claim 14, wherein the penetrating end portion of the protruding piece is configured to be crimped using a plurality of tooth tips, and the tooth tips are provided in parallel to each other.
PCT/JP2007/001189 2006-10-31 2007-10-31 Power steering device WO2008053594A1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2006296468A JP5155550B2 (en) 2006-10-31 2006-10-31 Cover structure fixing structure in torque detection sensor
JP2006-296468 2006-10-31
JP2006296473A JP2008111806A (en) 2006-10-31 2006-10-31 Torque detection sensor
JP2006296470 2006-10-31
JP2006-296470 2006-10-31
JP2006296469A JP2008111803A (en) 2006-10-31 2006-10-31 Torque detection sensor
JP2006-296469 2006-10-31
JP2006-296473 2006-10-31
JP2007246999A JP5184024B2 (en) 2006-10-31 2007-09-25 Power steering device
JP2007-246999 2007-09-25

Publications (1)

Publication Number Publication Date
WO2008053594A1 true WO2008053594A1 (en) 2008-05-08

Family

ID=39343946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/001189 WO2008053594A1 (en) 2006-10-31 2007-10-31 Power steering device

Country Status (1)

Country Link
WO (1) WO2008053594A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105612412A (en) * 2013-11-21 2016-05-25 日本精工株式会社 Torque measurement unit for electric power steering device and method of assembling same
EP2977736A4 (en) * 2013-03-19 2016-12-21 Nsk Ltd Torque detection device, electric power steering device, and vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0472532A (en) * 1990-07-13 1992-03-06 Honda Motor Co Ltd Steering torque sensor
JP2002357495A (en) * 2001-03-30 2002-12-13 Furukawa Electric Co Ltd:The Rotation sensor
JP2006153078A (en) * 2004-11-26 2006-06-15 Calsonic Kansei Corp Assist device using magnetostriction type torque sensor
JP2007302088A (en) * 2006-05-10 2007-11-22 Nsk Ltd Electric power steering device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0472532A (en) * 1990-07-13 1992-03-06 Honda Motor Co Ltd Steering torque sensor
JP2002357495A (en) * 2001-03-30 2002-12-13 Furukawa Electric Co Ltd:The Rotation sensor
JP2006153078A (en) * 2004-11-26 2006-06-15 Calsonic Kansei Corp Assist device using magnetostriction type torque sensor
JP2007302088A (en) * 2006-05-10 2007-11-22 Nsk Ltd Electric power steering device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2977736A4 (en) * 2013-03-19 2016-12-21 Nsk Ltd Torque detection device, electric power steering device, and vehicle
CN105612412A (en) * 2013-11-21 2016-05-25 日本精工株式会社 Torque measurement unit for electric power steering device and method of assembling same
EP3040698A4 (en) * 2013-11-21 2016-08-31 Nsk Ltd Torque measurement unit for electric power steering device and method of assembling same
US9638595B2 (en) 2013-11-21 2017-05-02 Nsk Ltd. Torque measuring unit for electric power steering device and method of assembling the same

Similar Documents

Publication Publication Date Title
US6729433B2 (en) Electrically-powered steering device
JP5547027B2 (en) Torque sensor assembly
JP5248814B2 (en) Motor drive device and inspection method thereof
JP5103845B2 (en) Resolver and motor
EP2434259B1 (en) Target magnet assembly for a rotation sensor used with a steering gear
US7837002B2 (en) Electric power steering apparatus
JP5364066B2 (en) Power steering device torque sensor neutral point adjustment method
JP5563513B2 (en) Electric power steering device
EP1541444A1 (en) Electric power steering device
JP4617794B2 (en) Motor and manufacturing method thereof
WO2008053594A1 (en) Power steering device
JP2006329685A (en) Torque sensor
JP5002981B2 (en) Torque sensor
JP3866237B2 (en) Electric power steering motor
JP4702593B2 (en) motor
JP2008111804A (en) Torque detection sensor
JP2008111807A (en) Structure for fixing case
JP2008111805A (en) Torque detection sensor
JP5155550B2 (en) Cover structure fixing structure in torque detection sensor
EP1536216A1 (en) Electric power steering device
JP5184024B2 (en) Power steering device
JP2007232602A5 (en)
JP2008111803A (en) Torque detection sensor
JP2007232602A (en) Torque sensor
JP2008111806A (en) Torque detection sensor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07827968

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07827968

Country of ref document: EP

Kind code of ref document: A1