CN1069152C - Electric motor driving apparatus and fixing structure for magnetic sensor - Google Patents
Electric motor driving apparatus and fixing structure for magnetic sensor Download PDFInfo
- Publication number
- CN1069152C CN1069152C CN97126324A CN97126324A CN1069152C CN 1069152 C CN1069152 C CN 1069152C CN 97126324 A CN97126324 A CN 97126324A CN 97126324 A CN97126324 A CN 97126324A CN 1069152 C CN1069152 C CN 1069152C
- Authority
- CN
- China
- Prior art keywords
- motor
- terminal
- magnetic sensor
- motor drive
- efferent
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 239000000758 substrate Substances 0.000 claims description 24
- 230000002787 reinforcement Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 30
- 238000001514 detection method Methods 0.000 description 11
- 230000008093 supporting effect Effects 0.000 description 9
- 238000005476 soldering Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005284 excitation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
- H02K2211/03—Machines characterised by circuit boards, e.g. pcb
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
To enhance assembling properties and to make mass production be adapted by standing terminal pins to connect to an eternal controller on a case, and electrically connecting the pins to a motor terminal via a flexible circuit board. A flexible printed circuit board placing part is formed of a cross-shaped rib so as to place a center of a flexible printed circuit board 9. Protrusions for passing both members of the board 9 and a reinforcing plate 45 for placing on the board 9 and thermally bonding fixedly them are provided at ends of the rib. Eight terminal pins 5a to 5h are stood on a terminal 5. The pins 5a to 5h are fixed to be inserted from interior to exterior of a lower case. Further, a waterproofing terminal car is fixed to the terminal 5. Here, the pins 5a to 5h are respectively connected to motor terminal pins 20a to 20e via conducting parts.
Description
The present invention relates to drive the motor drive and the employed fixing structure for magnetic sensor thereof of the switch valve of the adjustment valve of the temperature that is used for adjusting the hot water of supplying with hot water supply device etc. and the water yield or plumbing.
Known always just like Figure 16-motor drive 101 shown in Figure 180, that drive adjustment valve (not shown) usefulness.This motor drive 101 is to drive the adjustment valve according to the water temperature of being measured by near the temperature sensor of being located at the valve outlet, changes the flow of hot water or cold water, adjusts the device of temperature.Motor drive 101 has the portion of terminal 108 of the part that reducing gear train 106, efferent 107 and not shown conduct that housing 104, stepping motor 105, a plurality of reduction gearing that upper shell 102 and lower house 103 fixedly form form be connected with control appliance.
Stepping motor 105 is disposed in the lower house 103, mainly is made of the electric machine casing 109 of cup-shaped, stator department 110 and the rotor portions of being located in this electric machine casing 109 111.Lateral parts at electric machine casing 109 is formed with breach, disposes the Terminal of motor portion 112 that is fixed on the stator department 110 in this barbed portion.In addition, the upper side part at electric machine casing 109 is fixed with moulding board 113, on a moulding board (not shown) that places on this moulding board 113, disposes reducing gear train 106.
The iron core component 118,119 that stator department 110 comprises two coil racks 114,115 and is wound on the coil 116,117 on this coil rack 114,115 respectively and formed by magnetic component.In addition, in the outside of stator department 110, be fixed with Terminal of motor portion 112.This Terminal of motor portion 112 erects on circuit substrate and a plurality of pins are set and form, and the terminal of coil 116,117 is fixed by soldering respectively and is connected with these a plurality of pins.
On a plurality of pins of this Terminal of motor portion 112, by the fixing end that is connecting multiple conducting wires 120 respectively of soldering.This multiple conducting wires 112 is round the inner distribution of lower house, and derived the outside of housings 104 from being located at lead fairlead 121 on the lower house 103.Also have, the other end of multiple conducting wires 120 is connected on the portion of terminal 108 that is connected usefulness with electric motor control device.Therefore, by this portion of terminal 108 is connected with electric motor control device, the electric current that never illustrated electric motor control device comes is supplied to the coil 116,117 of stepping motor 105, owing to supply with this electric current, stator department 110 is by excitation.
On the other hand, rotor portions 111 is configured in and stator department 110 inboard relative positions.Rotor portions 111 mainly is made of rotating shaft 122 and the cylindric rotor magnet 123 that is fixed in this rotating shaft 122.
The rotating shaft 122 of rotor portions 111 hole on the moulding board from the moulding board 113 and that is formed on the upper face side that is fixed in motor field frame 109 protrudes upward.The pinion 124 that motor is arranged at the partial fixing that protrudes upward of rotating shaft 122.This motor pinion 124 is 125 engagements of the 1st gear with the first order of reducing gear train 106, in case rotor is 111 rotations all, this revolving force promptly passes to the 1st integrally formed gear 125 and the 2nd gear 126 of reducing gear train 106, pass to the 3rd integrally formed gear 127 and the 4th gear 128 again, and pass to output gear 131, at last, output shaft 132 rotations integrally formed with this output gear 131.
In addition, the 1st integrally formed gear 125 and the 2nd gear 126 are inserted in free to rotately to be erect on the 1st 129 that is located on the middle moulding board, and the 3rd integrally formed gear 127 and the 4th gear 128 are inserted into free to rotately to be erect on the 2nd 130 that is located on the middle moulding board.
Again, an end of this output shaft 132 is by bearing portion 133 supportings that are formed at upper shell 102, and the other end is inlaid in the output bearing portion 134 that is formed at lower house 103 free to rotately.In addition, distolateral at another of output shaft 132, be formed with combined hole 135, in these combined hole 135 inscribes serration is arranged.Loose fit has not shown adjustment valve in this combined hole 135.Adjust on the valve driving shaft and also cut serration, adjust the valve driving shaft when making output shaft 132 rotations and be driven.
Be on the face of lower house 103 sides of output gear 131 at the face of output gear 131 downsides, be embedded with detection that the position of rotation that detects efferent 107 uses with magnet 136.On the other hand, on lower house 103, be fixed with fixing the circuit substrate 139 of Magnetic Sensor 137,138.This Magnetic Sensor 137,138 is configured in and is embedded in the swing-around trajectory approaching position of the detection of output gear 131 with magnet 136, utilizes this Magnetic Sensor 137,138 and detection to concern the position of rotation of measuring output gear 131 with the position of magnet 136.
In addition, on circuit substrate 139, be formed with a plurality of connecting portions 140, on these a plurality of connecting portions 140, fix, be connected with an end of multiple conducting wires 141 respectively by soldering.This multiple conducting wires 141 is round lower house 103 inner distributions and be drawn out to the outside of housing 104 through lead fairlead 121.The other end of multiple conducting wires 141 is connected with portion of terminal 108.This portion of terminal 108 is connected with electric motor control device as mentioned above, and therefore, the position of rotation data of the output gear of being measured by Magnetic Sensor 137,138 131 can be fed to electric motor control device.
Existing as mentioned above motor drive 101 must carry out following operation: multiple conducting wires 120 solderings are fixed on to erect are located on the pin of Terminal of motor portion 112, again multiple conducting wires is drawn out to housing 104 outsides round lower house 103 internal configurations and through lead fairlead 121, assembling work is poor.In addition, again because the space of configuration multiple conducting wires 120 must be arranged within the lower house, so there is the problem that the device integral body of motor drive 101 can not miniaturization.
In addition, in existing motor drive 101, Magnetic Sensor 137,138 and electric motor control device that the position of rotation of detection efferent 107 is used are to be connected by multiple conducting wires 141 in the same manner with the method for attachment of stepping motor 105.That is, Magnetic Sensor 137,138 is fixed on the circuit substrate 139 that is formed with a plurality of connecting portions 140, with an end of multiple conducting wires 141 respectively soldering be fixed on a plurality of connecting portions 140.Again the other end of multiple conducting wires 141 is connected on the portion of terminal 108 that is connected usefulness with electric motor control device, therefore, above-mentioned motor drive 101 is in order to detect the position of rotation of efferent 107, have to circuit substrate 139 and multiple conducting wires 141 are configured in the housing 104, make the assembling work performance poorer.And the structure of motor drive 101 is that circuit substrate 139 and such two circuit substrates of Terminal of motor portion 112 employed circuit substrates are configured in the housing 104, becomes the high device of the many costs of part number.
In view of the above problems, the objective of the invention is to, by eliminating lead, make and seem clean and tidy in the housing, thereby provide a kind of volume the little and well behaved motor drive of assembling work round the enclosure interior configuration.Another object of the present invention is to,, provide amount of parts to reduce the low motor drive of cost by constitute the circuit substrate of employed circuit substrate of Terminal of motor portion and fixation of sensor portion with same circuit substrate.Another purpose of the present invention is, provides a kind of when magnetic sensor configuration on flexible circuit board the time, can be guaranteed the fixing structure for magnetic sensor of the positional precision of this Magnetic Sensor easily.
In order to achieve the above object, motor drive provided by the invention has: the motor that input terminal portion is arranged in the side; The reduction gearing of the rotation of described motor rotor is transmitted in deceleration; Be located at described reduction gearing, export the efferent of rotation accordingly with the rotation of described rotor; Detect the checkout gear of the position of rotation of described efferent: with described motor and described reduction gearing its inner housing of packing into, it is characterized in that,
Set up the terminal pins that the externally fed control appliance is connected usefulness with this motor drive at described housing, and described input terminal portion be electrically connected with described terminal pins by the pliability circuit substrate,
On the circuit pattern face of described circuit substrate, the test section configuration plane of the test section of the described checkout gear of configuration is set again.
In addition, fixing structure for magnetic sensor provided by the invention is characterized in that, has the panel mounting type Magnetic Sensor is connected and fixed on flexible circuit board on the circuit pattern face, and be the described Magnetic Sensor of the encirclement reinforcement plate of shape on every side, push described reinforcement plate and fix described circuit substrate.
Motor drive of the present invention because set up terminal pins on housing, and is electrically connected terminal pins and Terminal of motor portion with flexible circuit board, so, even Terminal of motor portion and terminal pins also can connect not on same easily.In addition, because on circuit substrate, dispose the test section of the position of rotation that detects efferent, so, needn't be as conventional, the circuit substrate of Terminal of motor portion and the circuit substrate of configuration detection portion are set in addition, the whole device type compactness that diminishes, and the part number reduces, and the assembleability of device improves.
In addition, utilize fixing structure for magnetic sensor of the present invention, because be provided with to be and surround the Magnetic Sensor reinforcement plate of shape on every side, with firmly fixing around the Magnetic Sensor, so, the positional precision of the Magnetic Sensor especially positional precision of short transverse just improves, and can make the high fixing structure for magnetic sensor of reliability.
Brief description:
The local excision vertical view of Fig. 1 for seeing from the top after the example local excision with motor drive of the present invention.
Fig. 2 is the cutaway view along the II in the motor drive shown in Figure 1-II line.
Fig. 3 is the vertical view of the upper shell of motor drive illustrated in figures 1 and 2, is the figure that sees from direction shown in the arrow A of Fig. 2.
Fig. 4 is the vertical view of the lower house of motor drive illustrated in figures 1 and 2, is the figure that sees from direction shown in the arrow A of Fig. 2.
Fig. 5 is the vertical view of the motor field frame of motor drive illustrated in figures 1 and 2, is the figure that sees from direction shown in the arrow A of Fig. 2.
Fig. 6 is the side view in partial cross-section of seeing from the arrow VI direction of Fig. 5.
Fig. 7 is the vertical view of the moulding board of motor drive illustrated in figures 1 and 2, is the figure that sees from arrow A direction shown in Figure 2.
Fig. 8 is the figure that sees from arrow VIII direction shown in Figure 7.
Fig. 9 is the figure of the stepping motor action usefulness of explanation motor drive illustrated in figures 1 and 2, and wherein (A) is for illustrating the tie lines figure that each terminal pins is connected with coil, (B) for each terminal pins and the figure that applies current relationship in each step is shown.
Figure 10 removes upper shell and reducing gear train from motor drive illustrated in figures 1 and 2, the vertical view of seeing from the arrow A direction of Fig. 2 under this state.
Figure 11 is the figure that the flexible circuit board of motor drive illustrated in figures 1 and 2 is shown, and is the figure that remarks has the position of the terminal pins that is connected with its circuit pattern and Terminal of motor pin.
Figure 12 is the cutaway view of the motor drive efferent of Fig. 1 and Fig. 2, is the cutaway view along the XII-XII among Figure 14.
Figure 13 is the upward view of seeing from the arrow A direction of Figure 12.
Figure 14 is the vertical view of seeing from the arrow B direction of Figure 12.
Figure 15 is the pith cutaway view of the X V-X V line along Fig. 1.
Figure 16 is the vertical view that existing motor drive is removed state behind the upper shell.
Figure 17 is the cutaway view along the X VII X VII line of Figure 16, is the cutaway view that with dashed lines has added reducing gear train.
Figure 18 is the stereoscopic figure of stepping motor shown in Figure 16 and portion of terminal.
Below utilize Fig. 1 to Figure 15, the 1st example of motor drive of the present invention is illustrated.In addition, for the fixed structure of Magnetic Sensor of the present invention, in the explanation of motor drive, illustrated together.
As depicted in figs. 1 and 2, motor drive 1 is covered by upper shell 2 and lower house 3 are fixed the housing 4 that forms, and is formed with the portion of terminal 5 that is electrically connected usefulness with electric motor control device (not shown) on lower house 3.In the inside of housing 4, dispose the reducing gear train of forming by a plurality of reduction gearing 7 that passes to efferent 8 after stepping motor 6, the rotational delay, efferent 8 and as the flexible print wiring board (hereinafter referred to as FPC) 9 of flexible circuit board with the rotor portions 24 of this stepping motor 6.
And for example shown in Figure 4, lower house 3 has the motor resettlement section 16 of accommodating stepping motor 6, loads the FPC loading part 17 (seeing Figure 15) of FPC9, as with the banking pin 19 of the rotation usefulness of the bearing recess 18 of an end of the portion of terminal 5 of the connecting portion of external control devices, axle supporting efferent 8 and restriction efferent 8.Motor resettlement section 16 is included as accommodates stepping motor 6 cylindraceous and forms the roughly large space 16a of cup-shaped, and the little space 16b of fixed motor portion of terminal 20 usefulness that form in the side of stepping motor 6.In addition, in order to be fixed on moulding board 21 positioning and fixing on the stepping motor 6, the large space 16a of motor resettlement section 16 is formed with 3 places and stretches to inboard convex fitting portion 16c, 16d, 16e.
Stepping motor 6 is configured in the large space 16a that is located at the motor resettlement section 16 in the lower house 3 as shown in Figure 2.Stepping motor 6 mainly is made of motor field frame 22, the rotor portions 24 being located at the cylindrical stator portion 23 in the motor field frame 22 and being disposed at stator department 23 inboards.Motor field frame 22 is arranged to as shown in Figure 5 and Figure 6 by the rounded bottom surface 25 of band ladder and the roughly cup-shaped that cylindrical lateral wall portion 26 forms.
On rounded bottom surface 25, be provided with fixing back bearing portion 28 with one of the fixed axis 27 of the rotor portions 24 of explanation end.In this bearing portion 28, be provided with the force application spring 28a that rotor magnet 34 is pushed away to moulding board 21 directions all the time.In addition, in the limit, upper end of side wall portion 26 part, as shown in Figure 5 and Figure 6, be formed with fitting portion 26a, 26b, 26c with moulding board 21 chimeric fixedly usefulness.
And for example shown in Figure 7, in the neighboring of moulding board 21 part, be formed with fitting projection 21a, 21b, 21c.The basal part of the wider width of this fitting projection 21a, 21b, 21c is chimeric with fitting portion 26a, the 26b, the 26c that are located at limit, motor field frame 22 upper end part respectively, and the narrower top ends of the width of fitting projection 21a, 21b, 21c is stretched out laterally from the periphery of motor field frame 22.The narrower part of the outwardly directed width of the periphery from motor field frame 22 of fitting projection 21a, 21b, 21c and the convex fitting portion 16c that is located at motor resettlement section 16,16d, 16e are respectively in circumferential positioning and fixing.
In addition, as shown in Figure 7 and Figure 8, the protrusion window portion 29 that the core of moulding board 21 projects upwards with being provided with the bridge shape and two side portions is opened wide.This protrudes the other end of the fixed axis 27 of 29 fixed rotor portions 24 of window portion.In addition, be provided with hole 21d, 21e that an end of fixed axis 10,11 is fixing at the upper part of moulding board 21, this fixed axis the 10, the 11st, supporting reducing gear train 7 rotates freely usefulness.
As shown in Figure 2, dispose stator department 23 cylindraceous in the inboard of motor field frame 22.This stator department 23 comprises two groups of yokes 30,30 that magnetic component forms, is inlaid in two groups of coil racks 31,31 on this yoke 30,30 and be wound on two groups of coils 32,32 on this coil rack 31,31 respectively respectively.Yoke 30,30 disposes along the axial overlap of fixed axis 27, and is fixed at the moulding board 21 of motor field frame 22 upper rims by the rounded bottom surface 25 and the riveted and fixed of motor field frame 22.In addition, be the side of stepping motor 6 at the outer peripheral portion of yoke 30,30, be fixed with the Terminal of motor portion 20 (seeing Figure 15) of two groups of yokes of cross-over connection 30,30.
On the terminal surface of this Terminal of motor portion 20, erect and be provided with 6 Terminal of motor pin 20a, 20b, 20c, 20d, 20e, 20f.Shown in Fig. 9 (A), on this Terminal of motor pin 20a, 20b, 20c, 20d, 20e, the 20f, connecting the two ends of two groups of coils 32,32 and the intermediate point of two groups of coils 32,32 respectively.
On the other hand, as shown in figure 10, it is on the electric motor control device terminal pins 5a, the 5b that are connected the portion of terminal 5 of usefulness, 5c, 5d, 5e, 5f, 5g, the 5h that described FPC9 is fixedly connected on another member by soldering.And for example shown in the expanded view of the FPC9 of Figure 11 (symbol that has corresponding each terminal pins), terminal pins 5a is connected by conducting portion 9a with Terminal of motor pin 20a.In addition, terminal pins 5d is connected by conducting portion 9d with Terminal of motor pin 20f.In addition, terminal pins 5e is connected by conducting portion 9e with 20d with Terminal of motor pin 20c.
On the pattern plane of FPC9, be fixedly connected with the sensor part 33 that the panel mounting type Magnetic Sensor of narrating is constituted by the back again. Terminal pins 5f, 5g, 5h are connected with sensor part 33 by conducting portion 9f, 9g, 9h respectively.
Like this, the Terminal of motor pin 20a that erect to be provided with on the terminal surface of Terminal of motor portion 20,20b, 20c, 20d, 20e, 20f are electrically connected with not shown electric motor control device by FPC9, therefore, stepping motor 6 obtains supply of electric power from electric motor control device.
On the other hand, in stator department 23 inboards, but rotor portions 24 free rotary ground supportings are on fixed axis 27.This rotor portions 24 constitutes by being bearing in rotor axial region 24a on the fixed axis 27 and circular rotor magnet 34.Rotor axial region 24a relies on the direction of moulding board 21 owing to the effect of force application spring 28a.The yoke 30 of rotor magnet 34 and stator department 23 relatively is fixed on the periphery of rotor axial region 24a.In case stator department 23 is by excitation, rotor magnet 34 is repelled, attracts by stator department 23.The rotor axial region 24a of rotor portions 24 and rotor magnet 34 are that the center rotates being pushed under the situation that relies on moulding board 21 directions with fixed axis 21.
In addition, an end of fixed axis 27 is fixed in the bearing portion 28 of the rounded bottom surface 25 of being located at motor field frame 22.In addition, the other end of fixed axis 27 is fixed in the protrusion window portion 29 of moulding board 21.Protrusion window portion 29 1 sides at rotor axial region 24a are formed with motor pinion 35.This motor pinion 35 is in elementary i.e. the 1st reduction gearing 36 engagements of open section that protrudes window portion 29 and reducing gear train 7.Therefore, the output of stepping motor 6 can pass to reducing gear train 7 from motor pinion 35.
In addition,, dispose the revolving force that transmits rotor portions 24 from motor pinion 35 at the upper part of moulding board 21, and the reducing gear train that a plurality of reduction gearing constituted 7 that this rotational delay is used.This reducing gear train 7 is made of the 1st reduction gearing the 36, the 2nd reduction gearing the 37, the 3rd reduction gearing the 38, the 4th reducing gear train 39 and output gear 40.The 1st reduction gearing 36 and the 2nd reduction gearing 37 are integrally formed, and can be inserted into to erect with rotating freely and be located on the fixed axis 10 of moulding board 21 upper parts.The 2nd reduction gearing 37 and 38 engagements of the 3rd reduction gearing.In addition, the 3rd reduction gearing 38 and the 4th reduction gearing 39 are integrally formed, and can be inserted into to erect with rotating freely and be located on the fixed axis 11 of moulding board 21 upper parts.The 4th reduction gearing 39 and output gear 40 engagements.One end of fixed axis 10,11 is fixed on the moulding board 21, and the other end has lower shaft hole 12,13 chimeric fixing on the housing 2 with being formed on respectively.
In addition, the 1st reduction gearing 36 and the 2nd reduction gearing the 37, the 2nd reduction gearing 37 and the 3rd reduction gearing the 38, the 3rd reduction gearing 38 and the 4th reduction gearing 39 and the 4th reduction gearing 39 are got very big respectively with the ratio of the number of teeth of the gear of output gear 40, therefore, the rotation of rotor portions 24 passes to output gear 40 after slowing down significantly.Again, output gear 40 constitutes the part of efferent 8.The rotation of the rotor portions 24 of stepping motor 6 is decelerated and passes to efferent 8 after gear train 7 is slowed down.
This efferent 8, its bolster 41 is rotatably assorted with the bearing recess 18 of being located at lower house 3, and its output shaft 15 is by the interior Zhou Zhicheng of the delivery outlet 14 of being located at upper shell 2 simultaneously, thereby but by housing 4 free rotary ground supportings.This delivery outlet 14 is arranged to run through the inside and outside through hole of housing 4, and makes the valve that is disposed at housing 4 outsides adjust serration 43 engagements of valve (diagram is omitted) and output shaft 15.Therefore, in case efferent 8 rotation is adjusted the switching motion that valve promptly carries out valve with the valve of serration 43 engagements of output shaft 15.
In addition, as shown in figure 13, rotation limiting groove 42 is arranged to rotate that to allow angle [alpha] be the circular-arc of 315 ° of scopes on output gear 40 face of gears and faces lower house 3 opposite sides.In this rotation limiting groove 42, the banking pin 19 that is provided with is erect in the position that can be inserted in the bearing recess 18 that departs from lower house 3 slightly.That is, efferent 8 combines with banking pin 19 by rotation limiting groove 42, is restricted to and can only rotates in 0 °-315 ° scope.This is for when stepping motor 6 is disorderly walked, is limited in by rotation in 0 °-315 ° the scope efferent 8, and preventing to adjust the breakage of valve with the valve of efferent 8 engagements, and for the initial point of acquisition during the initial stage.
In addition, on a face of the downside of output gear 40 face of gears, as shown in figure 13, be fixed with detection that the rotation reference position that detects efferent 8 uses with magnet 44, the part of a face of downside is relative with the pattern plane of FPC9 on being configured in lower house 3 simultaneously.As mentioned above, on this FPC9, be fixed with the sensor part 33 that forms by Hall IC as the panel mounting type Magnetic Sensor.That is, detection is configured in magnet 44 and the opposed position of sensor part 33 energy.So when detecting when coming on the sensor part 33 relative position with magnet 44, sensor part 33 is measured this position as the rotation reference position (0 °) of efferent 8.
At this moment, supply with positive voltage, portion of terminal 5h ground connection to portion of terminal 5f.Sensor part 33 has been positioned at efferent 8 in this information of rotation reference position (0 °) by the not shown electric motor control device of portion of terminal 5g input.
FPC9 also as shown in figure 11, has 3 hole 9i that run through 3 protruding 17a respectively except circuit pattern is arranged.In addition, be fixed in sensor part 33 on the FPC9 around, dispose the fixedly enhancing that makes 33 couples of FPC9 of sensor part and prevent the reinforcement plate 45 that sensor part 33 is used at short transverse and transversion malposition.These reinforcement plate 45 usefulness glass cloth base material epoxy resin constitute, and make the shape of surrounding sensor part 33.Make protruding 17a insert the through hole (not shown) of this reinforcement plate 45 and reinforcement plate is overlapped on the FPC9 circuit pattern face, under this state, heat and push the top of protruding 17a, so, reinforcement plate 45 is pressed to FPC loading part 17 sides with FPC9, and FPC9 sandwiched is fixed between itself and the lower house 3.
In addition, FPC9 is a flexible circuit board, as shown in figure 15, is configured in agley in the lower house 3.Specifically be that the part that the sensor part 33 of the pattern plane of FPC9 is disposed is that the middle body of FPC9 puts on the FPC loading part 17 that is formed at the cross rib on the lower house 3.In addition, the part that is connected with terminal pins 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h of FPC9 put than the FPC loading part 17 of lower house 3 on portion of terminal low slightly on the above-below direction 5.Again, roughly U font ground is crooked in the little space 16b of motor resettlement section 16 for the part that is connected with Terminal of motor portion 20 of FPC9.This is because the joint face of the FPC loading part 17 of the terminal surface of Terminal of motor portion 20 and lower house 3 is in the cause of orthogonality relation.That is, the part that disposes sensor part 33 of the terminal surface of Terminal of motor portion 20 and FPC9 is a quadrature.
One distolateral at the FPC9 of configuration as mentioned above inserts the Terminal of motor pin 20a, 20b, 20c, 20d, 20e, the 20f that are connected with the Terminal of motor portion 20 that is formed at stepping motor 6 sides.Distolateral at another of FPC9, insert to be connected with and erect terminal pins 5a, 5b, 5c, 5d, 5e, 5f, 5g, the 5h that is located on the lower house 3.That is, each terminal pins 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h are electrically connected with Terminal of motor portion 20 by flexible FPC9.
Below the action of the motor drive 1 of structure is as mentioned above illustrated.
The electric current that is transfused to terminal pins 5a is transfused to the Terminal of motor pin 20a of Terminal of motor portion 20 by the conducting portion 9a of FPC9.The electric current that is transfused to terminal pins 5b is transfused to the Terminal of motor pin 20b of Terminal of motor portion 20 by the conducting portion 9b of FPC9.The electric current that is transfused to terminal pins 5c is transfused to the Terminal of motor pin 20e of Terminal of motor portion 20 by the conducting portion 9c of FPC9.The electric current that is transfused to terminal pins 5d is transfused to the Terminal of motor pin 20f of Terminal of motor portion 20 by the conducting portion 9d of FPC9.The electric current that is transfused to terminal pins 5e is transfused to Terminal of motor pin 20c, the 20d of Terminal of motor portion 20 by the conducting portion 9e of FPC9.
When as mentioned above selectively to the Terminal of motor pin 20a of Terminal of motor portion 20,20b, 20c, 20d, 20e supplying electric current, flow through electric current respectively selectively in two groups of coils 32,32, stator department 23 is by excitation.In case stator department 23 is by excitation, promptly attracted, repel with the rotor magnet 34 of the rotor portions 24 of these stator department 23 relative configurations by stator department 23, rotor portions 24 is that the center is by stepper drive with fixed axis 27.In addition, rotor portions 24 is driven under the state of moulding board 21 directions by force application spring 28a backup.
As the exciting method of stator department 23, can be any exciting method, but under this example, adopt 2 phase excitations.As if one of the rotation driving that rotor portions 24 is described with Fig. 9 (A), (B) example, then Terminal of motor pin 20c, the 20d that is connected with the part midway of coil 32,32 obtains the positive voltage supply all the time.
Meanwhile, in the 1st step, Terminal of motor pin 20e, 20f are flow through electric current as minus side.In the 2nd step, make electric current flow through Terminal of motor pin 20e, 20b.In the 3rd step, make electric current flow through Terminal of motor pin 20b, 20a.In addition, in the 4th step, make electric current flow through Terminal of motor pin 20a, 20f.By carrying out actuation cycle repeatedly, rotor portions 24 is driven to the equidirectional rotation from the 1st step to the 4th step.In addition, by the supply method of change, also can make rotor portions 24 stepper drive round about from the electric motor control device electric current.Again, make rotor portions 24 walk several steps,, control by situation by electric motor control device to which direction rotation.
Like this, when rotor portions 24 during, be bearing in that rotatable motor pinion 35 rotates with armature spindle 24a with being integral on the fixed axis 27 of rotor portions 24 to the rotation of a certain direction.So the rotation of rotor portions 24 is delivered to the 1st elementary reduction gearing 36 that becomes reducing gear train 7 by motor pinion 35.
Then, the rotation of rotor portions 24 is further passed to the 2nd reduction gearing the 37, the 3rd reduction gearing the 38, the 4th reduction gearing 39 that constitutes reducing gear train 7 successively, and passes to efferent 8 by the 4th reduction gearing 39.Again because the rotation of rotor portions 24 is delivered to efferent 8 by each gear than each gear of obtaining very big reducing gear train 7, so after slowing down significantly, pass to efferent 8.
In case pass to efferent 8 after the rotation of the rotor portions 24 of stepping motor 6 is decelerated, efferent 8 is promptly to a certain direction rotation.In addition, efferent 8 is provided with the rotation limiting groove 42 that is inserted into banking pin 19, contacts with banking pin 19 by this rotation limiting groove 42, and the rotation of this efferent 8 is limited in 0 °-315 ° the scope.In addition, on the output gear 40 of efferent 8, be fixed with and detect with magnet 44.Efferent 8 is when initial energized and after having a power failure again during energized, rotates to till rotation limiting groove 42 collides with banking pin 19 always.Then, because the actuating force of stepping motor 6 detects and turns to the position (rotation reference position of efferent 8) that is overlapped on the sensor part 33 with magnet 44.
In case the detection of efferent 8 is come on the sensor part 33 with magnet 44, sensor part 33 is promptly measured efferent 8 and has been come rotation reference position (0 °).The detection data that sensor part 33 is measured send electric motor control device to by conducting portion 9g and the terminal pins 55g of FPC9.On the other hand, electric motor control device calculates and makes efferent 8 what rotate from rotation reference position (0 °).Then, electric motor control device according to this calculated value with as mentioned above the order drive stepping motor 6.
Example of the present invention constitutes as mentioned above, but can do all changes in the scope that does not break away from the invention main points.For example, under this example, the output shaft 15 of efferent 8 combines with not shown adjustment valve in the delivery outlet 14 of being located at upper shell 2, but also delivery outlet 14 can be located at lower house 3, and output shaft 15 is disposed at lower house 3 sides.In addition, as the drive source that drives efferent 8 usefulness, use be stepping motor 6, but also can be other forms of motor such as AC synchronous machine.
In addition, when adopting the motor that forms Terminal of motor portion in the body side during as motor drive, it is inequality that the terminal pins of Terminal of motor portion and the terminal pins that is connected the portion of terminal that electric motor control device uses are erect the direction that is provided with, and is the position relation of the quadrature as above-mentioned example.In the present invention, because make flexible FPC9 bending that Terminal of motor portion 20 is electrically connected with portion of terminal 5, so erect the motor drive that direction and the terminal pins setting that is connected the portion of terminal that electric motor control device uses are provided with direction structure inequality is set if be applied to the terminal pins of Terminal of motor portion, its effect is high especially.But application of the present invention is not limited to the device of structure as mentioned above.
In addition, under this example, the sensor part on the FPC9 33 comprise its upper side around, be provided with the reinforcement plate 45 of high accuracy fixation of sensor portion 33 usefulness, but as required, also can be without this reinforcement plate 45.Have again, detect the detection that the position of rotation of efferent 8 uses and be located at the face of gear of output gear 40, but also can be located on certain face of gear in other reduction gearing with magnet 44.At this moment, the pattern plane of FPC9 be formed on the detection used with the position of detecting sensors configured portion 33 with magnet 44 can be relative the position.
In addition, under this example, at moulding board 21 the window portion 29 of protruding is set, part in this protrusion window portion 29 makes motor pinion 35 and 36 engagements of the 1st reduction gearing, but also can not establish the window portion 29 of protruding, motor pinion 35 and the 1st reduction gearing 36 be meshed at the upside of moulding board 21.At this moment, the fixed axis 27 of supporting rotor portion 24 is as rotating shaft, and through hole that this rotating shaft uses and the bearing portion that uses at this through hole internal support rotating shaft of inserting is set on moulding board 21.
In addition, under this example, make fitting projection 21a, 21b, the 21c of moulding board 21 and be located at convex fitting portion 16c, 16d, the 16e of motor resettlement section 16 of lower house 3 chimeric, make stepping motor 6 and moulding board 21 relative housings 4 location, but also can projection be set and embed housing 4 at the outer peripheral portion of the side wall portion 26 of motor field frame 22.But under the situation of present embodiment, because moulding board 21 and housing 4 are directly located, so it is good to be fixed in the positional precision of fixed axis 10,11 relative housings 4 of moulding board 21.The reducing gear train 7 of therefore, can this fixed axis 10,11 and being bearing on the housing 4 reaches high accuracy.
If adopt the described invention of the application, because on housing, erect terminal pins be set, and terminal pins is electrically connected with Terminal of motor portion with flexible circuit board, so, even Terminal of motor portion and terminal pins on same one side, can not connect easily yet.Its result can make assembly performance and well be suitable for the device produced in batches.In addition, also can not use lead and directly connect with terminal pins for the electric motor control device as external device (ED), so improve with the switching performance of external equipment, operability is good.And because do not need to accommodate the space of lead, so equipment miniaturization.
Again because be provided with the sensor part of the position of rotation that detects efferent at circuit substrate, so the circuit substrate of Terminal of motor portion and the circuit substrate of sensors configured portion needn't be set respectively as existing, whole device Miniaturizable, and component number reduces installation cost decline.Also have, because the pattern plane that disposes sensor part part is detected with the face of gear of the reduction gearing of magnet and the side quadrature of stepping motor with being provided with, so, the side of stepping motor can effectively be utilized, whole equipment miniaturization can be made, especially axial dimension can be suppressed.
In addition because Magnetic Sensor around firmly fixing with reinforcement plate, so especially the positional precision of short transverse is very high for the positional precision of Magnetic Sensor, can be used as the fixing structure for magnetic sensor of high reliability.
Claims (7)
1. motor drive has:
The motor that input terminal portion is arranged in the side;
The reduction gearing of the rotation of described motor rotor is transmitted in deceleration;
Be located at described reduction gearing, export the efferent of rotation accordingly with the rotation of described rotor;
Detect the checkout gear of the position of rotation of described efferent;
With described motor and described reduction gearing its inner housing of packing into,
It is characterized in that,
Set up the terminal pins that the externally fed control appliance is connected usefulness with this motor drive at described housing, and described input terminal portion be electrically connected with described terminal pins by the pliability circuit substrate,
On the circuit pattern face of described circuit substrate, the test section configuration plane of the test section of the described checkout gear of configuration is set again.
2. motor drive according to claim 1, it is characterized in that, the detected portion of described checkout gear is configured on the face of gear of described reduction gearing, and makes the side orthogonal configuration of the face of gear and the described motor of described test section configuration plane and described reduction gearing.
3. motor drive according to claim 2 is characterized in that, described test section is that Magnetic Sensor and described detected portion are magnets, and described Magnetic Sensor and described configurations of magnets are become can be relative mutually.
4. motor drive according to claim 1 is characterized in that, on described test section configuration plane, surrounds the reinforcement plate of described test section shape in the covering, and described circuit substrate is clamped between this reinforcement plate and the described housing.
5. motor drive according to claim 2, it is characterized in that, described flexible circuit board had from the motor side once towards the side extension back and described inner walls bend against bending opposite with described test section configuration plane, and after extending, described terminal pins is attached thereto from this bend along described inner walls, simultaneously, in the described test section configuration plane of the intermediate configurations of described bend and described terminal pins.
6. motor drive according to claim 1 is characterized in that, described efferent is adjusted valve with valve and is connected the flow of controlling fluid.
7. fixing structure for magnetic sensor, it is characterized in that, have the panel mounting type Magnetic Sensor is connected and fixed on flexible circuit board on the circuit pattern face, and be the reinforcement plate that surrounds shape around the described Magnetic Sensor, push described reinforcement plate and fix described circuit substrate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP357201/96 | 1996-12-25 | ||
| JP357201/1996 | 1996-12-25 | ||
| JP35720196A JP3394407B2 (en) | 1996-12-25 | 1996-12-25 | Motor drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186372A CN1186372A (en) | 1998-07-01 |
| CN1069152C true CN1069152C (en) | 2001-08-01 |
Family
ID=18452910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97126324A Expired - Lifetime CN1069152C (en) | 1996-12-25 | 1997-12-24 | Electric motor driving apparatus and fixing structure for magnetic sensor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3394407B2 (en) |
| KR (1) | KR100334341B1 (en) |
| CN (1) | CN1069152C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3593102B2 (en) * | 2002-01-08 | 2004-11-24 | 三菱電機株式会社 | Electric power steering device |
| DE102005046759A1 (en) * | 2005-09-29 | 2007-04-05 | BSH Bosch und Siemens Hausgeräte GmbH | Connection plate may be L-shaped and consist of a receiver region with sensor in opening and having a depression for holding conductor plate |
| KR101202899B1 (en) | 2006-08-31 | 2012-11-21 | 삼성전자주식회사 | Stepping motor |
| EP2141785B1 (en) * | 2008-07-04 | 2019-08-28 | Mabuchi Motor Co., Ltd. | Sensor magnet holder, motor having the holder incorporated therein, and method of manufacturing the motor |
| JP5235833B2 (en) * | 2009-10-06 | 2013-07-10 | 日立オートモティブシステムズ株式会社 | Connection mounting structure between circuit board and connector terminal conductor |
| JP5658914B2 (en) * | 2010-06-07 | 2015-01-28 | 株式会社不二工機 | Motor type actuator and valve device actuator |
| FR2999509B1 (en) * | 2012-12-19 | 2015-01-16 | Chassis Brakes Int Bv | "ELECTROMECHANICAL PARKING BRAKE ACTUATOR, ELECTRIC MOTOR FOR SUCH ACTUATOR, AND METHODS OF ASSEMBLY" |
| JP6317579B2 (en) * | 2013-03-28 | 2018-04-25 | 日本電産サンキョー株式会社 | Cover structure in motor |
| JP6190712B2 (en) * | 2013-12-13 | 2017-08-30 | 日本電産サンキョー株式会社 | motor |
| JP6667089B2 (en) * | 2016-06-17 | 2020-03-18 | ミネベアミツミ株式会社 | Vehicle having a rotation device and an air conditioning system including the rotation device |
| JP7094159B2 (en) * | 2018-06-15 | 2022-07-01 | 日本電産サンキョー株式会社 | Geared motor |
| JP2020039206A (en) * | 2018-09-04 | 2020-03-12 | 日本電産サンキョー株式会社 | Geared motor |
| JP7479212B2 (en) * | 2020-06-11 | 2024-05-08 | 株式会社マキタ | mixer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6257577U (en) * | 1985-09-26 | 1987-04-09 |
-
1996
- 1996-12-25 JP JP35720196A patent/JP3394407B2/en not_active Expired - Fee Related
-
1997
- 1997-12-15 KR KR1019970068669A patent/KR100334341B1/en not_active IP Right Cessation
- 1997-12-24 CN CN97126324A patent/CN1069152C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6257577U (en) * | 1985-09-26 | 1987-04-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980064128A (en) | 1998-10-07 |
| CN1186372A (en) | 1998-07-01 |
| JPH10191616A (en) | 1998-07-21 |
| KR100334341B1 (en) | 2002-07-31 |
| JP3394407B2 (en) | 2003-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1069152C (en) | Electric motor driving apparatus and fixing structure for magnetic sensor | |
| JP4468033B2 (en) | Electric motor for variable valve timing device of vehicle engine | |
| JP5287787B2 (en) | Electric device | |
| CN105827068A (en) | Rotating electrical machine | |
| US10778071B2 (en) | Stacking-type stator using multi-layered substrate, and in-car sensor using same | |
| JP2019506124A (en) | Electric motor for fluid pump, modular motor family and forming method for forming various fluid pumps having a plurality of such electric motors | |
| CN107251368B (en) | Radial flux motor | |
| CN109964392B (en) | Electric drive device and electric power steering device | |
| EP3249787A1 (en) | Drive device | |
| CN104313833A (en) | Integrated motor and controller assemblies for horizontal axis washing machines | |
| EP2858217A1 (en) | Motor | |
| US6462443B2 (en) | Brushless D.C. motors structure | |
| US20020167238A1 (en) | Electric motor | |
| US11569702B2 (en) | On-vehicle brushless motor device and method of manufacturing the same | |
| JP2020178422A (en) | Rotary actuator | |
| JP7432706B2 (en) | Brushless DC electric motor for automotive wiper system | |
| KR20190004277A (en) | Vehicle actuator device, brake system | |
| CN110177965B (en) | Drive module and transmission | |
| CN118140383A (en) | Electric motor | |
| US20080148890A1 (en) | Electric actuator, in particular for driving a gearbox selector shaft | |
| CN209676077U (en) | Gearmotor | |
| CN111727545B (en) | Electronic control device and electric drive device | |
| CN115397719A (en) | Steering assist device | |
| KR20180073102A (en) | Integrated Type Stator Using Multiple PCBs, Single-phase Motor and In-car Sensor Using the Same | |
| JP2011125191A (en) | Motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NIDEC SANKYO CORP. Free format text: FORMER NAME OR ADDRESS: SANKYO SEIKI MFG. SEISAKUSHO K.K. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Nagano Patentee after: Sankyo Seiki Seisakusho KK Address before: Nagano Patentee before: Sankyo Seiki Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20010801 |
|
| CX01 | Expiry of patent term |