CN104638824A - Drive device - Google Patents
Drive device Download PDFInfo
- Publication number
- CN104638824A CN104638824A CN201410646195.7A CN201410646195A CN104638824A CN 104638824 A CN104638824 A CN 104638824A CN 201410646195 A CN201410646195 A CN 201410646195A CN 104638824 A CN104638824 A CN 104638824A
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- China
- Prior art keywords
- electromagnetic clutch
- rotating shaft
- drive unit
- stator
- armature
- 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.)
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Classifications
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- 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
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- 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
- H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
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- 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
- H02K7/11—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric clutches
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a drive device comprising a stator (21) with a motor coil (26); a rotor (5) with a permanent magnet (24) opposite to the motor coil (26); a rotary shaft (22) freely and integrally rotated along with the rotor (5) and supported by the stator (21); an electromagnetic clutch (6) accommodated inside the inner peripheral part of the stator (21); and an output gear (3) arranged at the end portion of the electromagnetic clutch (6). The electromagnetic clutch (6) comprises a rotary part (43) integrally rotated along with the rotary shaft (22); and an output rotary part (48).
Description
Technical field
The present invention relates to the drive unit possessing motor and electromagnetic clutch.
Background technology
For this drive unit in the past, such as, there is the drive unit described in Japanese Unexamined Patent Publication 2007-46622 publication.This drive unit is made up of motor, reducing gear, electromagnetic clutch etc.
Reducing gear by be arranged at motor motor reel leading section worm screw and form with the worm gear of this worm engaging.The armature of electromagnetic clutch is movably linked to worm gear in the axial direction with the state rotated integrally with worm gear.Further, the axle center part of the output shaft of this drive unit rotatably through worm gear.
Electromagnetic clutch is the device rotation of worm gear being optionally passed to output shaft, possesses the revolving part and above-mentioned armature and field core that rotate integratedly with output shaft.Revolving part cooperates with field core with forming the parts of magnetic loop, and possess the friction part opposed with above-mentioned armature.
In this drive unit, be excited by the magnet exciting coil of field core, armature is adsorbed on the friction part of revolving part by magnetic force, and thus, the rotation of motor is passed to output shaft via worm gear, armature and revolving part.
But drive unit in the past adopts the structure of the axis of motor reel and the axis vertical take-off of output shaft (clutch shaft), therefore there is the problem of maximization.Further, in this drive unit, motor and electromagnetic clutch must be supported on housing respectively, therefore also there is complex structure, problem that Heavy Weight and manufacturing cost uprise.
The electromagnetic clutch of this drive unit is the device rotation of the motor after being slowed down by reducing gear being passed to the revolving part of output shaft side.Therefore, need the transmission of power power of electromagnetic clutch to set larger, therefore make electromagnetic clutch miniaturization in exist restriction.In addition, in order to realize miniaturization, the lightweight of drive unit, the situation as transmission of power power is not enough must be avoided in electromagnetic clutch.
Summary of the invention
The present invention completes to eliminate the problems referred to above, its object is to provide a kind of and can prevent the hypodynamic situation of transmission of power in electromagnetic clutch, can realize miniaturization and lightweight and the drive unit that can suppress lower by price.
In order to reach above-mentioned purpose, drive unit (1) involved in the present invention possesses: the stator (21) of ring-type, and this stator has motor winding (26); Rotor (5), this rotor has the permanent magnet (24) opposed with motor winding, and rotates by the torque produced by motor winding and permanent magnet; Rotating shaft (22), this rotating shaft is rotatable by an overhang bracket of stator under the state of the axle center part of through stator, and an end of rotating shaft is installed on rotor to rotate integratedly with rotor; Motor installing component (11), this motor installing component is fixed on the other end of stator, and by the other end of rotating shaft supporting for rotatable; Electromagnetic clutch (6), this electromagnetic clutch is incorporated in the inner peripheral portion of stator with the state of rotating shaft this electromagnetic clutch through; And output block (3), this output block is arranged at electromagnetic clutch, and electromagnetic clutch has: input rotating parts (43), and this input rotating parts and rotating shaft to be positioned on same axis and to rotate integratedly with rotating shaft; And export rotating parts (48), rotating shaft is through output rotating parts rotatably, and export rotating parts rotate integratedly with output block and with input rotating parts engage and be separated.
According to the present invention, motor and electromagnetic clutch are positioned on same axis, and electromagnetic clutch is incorporated in the stator of motor, therefore, it is possible to provide small-sized and the drive unit of light weight.Further, can utilize the stator supporting electromagnetic clutch of motor, therefore, compared with being installed on the existing drive unit of housing respectively with above-mentioned two parts, structure simplifies, can suppress lower by manufacturing cost.
The electromagnetic clutch of drive unit involved in the present invention is the parts of the rotation of transmitting the motor be not decelerated.Therefore, compared with the electromagnetic clutch of the rotation of the motor after being decelerated with transmission, the transmission of power power of this electromagnetic clutch is relatively little also harmless, therefore, it is possible to make drive unit miniaturized.
Thus, according to the present invention, can provide a kind of and can prevent the hypodynamic situation of the transmission of power of electromagnetic clutch, miniaturization and lightweight can be realized and the drive unit that can suppress lower by price.
Accompanying drawing explanation
Fig. 1 is the stereogram of the drive unit of one embodiment of the present of invention.
Fig. 2 is the cutaway view of the drive unit shown in Fig. 1.
Fig. 3 is by the cutaway view shown in the electromagnetic clutch portion amplification in Fig. 1.
Embodiment
Below, the drive unit of Fig. 1 to Fig. 3 to one embodiment of the present of invention is utilized to be described in detail.Herein, an example of the situation of the drive unit applied the present invention in the housing of the sliding door opening/closing device being assembled in vehicle together with reducing gear is described.
Drive unit 1 shown in Fig. 1 is the device making output gear (output block) 3 rotate using motor 2 as power source.Output gear 3 engages with the deceleration gear wheel (driven-side rotor) 4 shown in Fig. 2.The details of motor 2 will describe later, and described motor is that rotor 5 is positioned at peripheral part and electromagnetic clutch 6 is built in the outer-rotor type DC brushless motor of axle center part.Output gear 3 is connected with motor 2 via electromagnetic clutch 6.Electromagnetic clutch 6 is the parts rotation of motor 2 being optionally passed to output gear 3, is made up of monolithic friction-type electromagnetic clutch.
This drive unit 1 in FIG upside end possess motor mounting plate (motor installing component) 11.This motor mounting plate 11 is the parts for this drive unit 1 being assembled in such as reducing gear (not shown), is fixed to motor 2 by multiple fixed-use bolt 12.This motor mounting plate 11 has: in discoideus plectane portion 11a; In FIG from the outstanding upward large footpath cylindrical portion 11b of the central part of this plectane portion 11a and path cylindrical portion 11c; And from the peripheral part of plectane portion 11a towards radial outside outstanding multiple installation flange 11d.As shown in Figure 2, path cylindrical portion 11c holds the second bearing 35 described later, and large footpath cylindrical portion 11b holds end and the output gear 3 of electromagnetic clutch 6.Therefore, the structure that output gear 3 is adjacent with motor mounting plate 11 is formed as.
In this embodiment, motor mounting plate 11 be formed for avoid with and the deceleration gear wheel 4 that engages of output gear 3 between there is the peristome (slave unit connecting portion) 13 that disturbs.This peristome 13 be formed as by motor mounting plate 11 from large footpath cylindrical portion 11b to the shape that a part for the outer peripheral face of plectane portion 11a is excised.By forming peristome 13 at motor mounting plate 11 like this, output gear 3 exposes, and a part for distributing board 14 between motor 2 and motor mounting plate 11 is exposed.In addition, when not there are the flat parts of large footpath cylindrical portion 11b and path cylindrical portion 11c when using as motor mounting plate, non-essential at motor mounting plate formation peristome 13.This is because: if the deceleration gear wheel 4 engaged with output gear 3 is disposed between motor 2 and motor mounting plate, then can avoid disturbing between motor mounting plate and deceleration gear wheel 4.
Distributing board 14 is provided with the circuit (not shown) of the action for controlling motor 2 and electromagnetic clutch 6.Further, the part exposed at peristome 13 in distributing board 14 is provided with Magnetic Sensor 15.This Magnetic Sensor 15 is configured in the position relative with the permanent magnet being arranged at deceleration gear wheel 4 (magnet) 16 (with reference to Fig. 2), the magnetic field that the permanent magnet 16 that detection rotates together with deceleration gear wheel 4 produces, detects the rotation of deceleration gear wheel 4 thus.Thus, Magnetic Sensor 15 is the parts of the rotation sensor 17 forming the rotation detecting deceleration gear wheel 4 of cooperating with permanent magnet 16.Such as, Hall IC or magneto-resistance effect element etc. can be used as Magnetic Sensor 15.
As shown in Figure 2, motor 2 possesses: be positioned at outermost rotor 5; Be accommodated in the stator 21 in this rotor 5; And the rotating shaft 22 of the axle center part of through above-mentioned parts.In this embodiment, when being described the structure of drive unit 1, conveniently, using the downside of Fig. 2 as end side, the upside of Fig. 2 is described as another side.
Rotor 5 is made up of motor yoke 23 and permanent magnet 24, and motor yoke 23 is in the bottomed cylindrical towards the other end side opening of this drive unit 1, and permanent magnet 24 is fixed in the perisporium inner surface of above-mentioned motor yoke 23.Motor yoke 23 has: the cylindric boss portion 23a being positioned at central part; Be positioned at the outside cylindrical portion 23b of peripheral part; And connect the plectane portion 23c of above-mentioned cylindric boss portion 23a and outside cylindrical portion 23b.Cylindric boss portion 23a is fixed in an end of rotating shaft 22.That is, rotor 5 is installed on an end of rotating shaft 22 with the state rotated integrally with rotating shaft 22.In other words, an end of rotating shaft 22 is installed on rotor 5, rotates integratedly to make rotating shaft 22 and rotor 5.
Outside cylindrical portion 23b and rotating shaft 22 are positioned on same axis, and extend from the outer peripheral edges of plectane portion 23c towards another side of this drive unit 1 along the axis direction of rotating shaft 22.The gap that can hold above-mentioned distributing board 14 is formed between the leading section and motor mounting plate 11 of this outside cylindrical portion 23b.Permanent magnet 24 is relative with the motor winding 26 of stator 21 described later and bear the parts of torque, and is fixed in the inner peripheral surface of outside cylindrical portion 23b.
Plectane portion 23c is formed as the discoideus of an end of the axis direction from the inner side of radial direction to outer side covers stator 21.
Stator 21 is formed as overall shape in the form of a ring by the multiple parts of combination.The multiple parts forming this stator 21 comprise the first Boss features 27 and the second Boss features 28 of the iron core 25 and motor winding 26 that are positioned at radial outside and the inner peripheral portion being installed on iron core 25.
Iron core 25 is formed by the plywood in axis direction overlap.The circumference of this iron core 25 is disposed with multiple coil winding portion 25a.Motor winding 26 is wound on around each coil winding portion 25a, and is connected with circuit by the control of wire (not shown) with above-mentioned distributing board 14.
First Boss features 27 and the second Boss features 28 interconnected by multiple link bolt 29 under the state of inner peripheral portion clipping iron core 25 from the both sides of axis direction.First Boss features 27 of in the first Boss features 27 and the second Boss features 28, to be positioned at this drive unit 1 end side (being downside in fig. 2) except have keep iron core 25 function except, also there are two functions.
First function is support an end of rotating shaft 22 (being the end of downside in fig. 2) for rotatable function.Clutch shaft bearing 31 by the first elasticity baffle ring 32 to be installed on an end of rotating shaft 22 towards the confined state of movement of another side.This clutch shaft bearing 31 is entrenched in the end the axis direction of the first Boss features 27 inner peripheral portion with press-in state from side, the other end.
One end of rotating shaft 22 is formed as the length of through clutch shaft bearing 31.The cylindric boss portion 23a of above-mentioned rotor 5 is fixed on the leading section outstanding from clutch shaft bearing 31 of rotating shaft 22.Spring members 33 is sandwiched between clutch shaft bearing 31 and cylindric boss portion 23a with compressive state.Wavyly this spring members 33 is the annular leaf spring bent in the side of axis direction and opposite side.
Second function is the function of the field core 34 supporting electromagnetic clutch 6 described later.Field core 34 is entrenched in the other end on the axis direction of the first Boss features 27 inner peripheral portion and is fixed.
The fixed-use bolt 12 had for fixing above-mentioned motor mounting plate 11 is screwed at the second Boss features 28.That is, motor mounting plate 11 is fixed in the stator 21 of motor 2.It is rotatable function that motor mounting plate 11 has the other end of rotating shaft 22 supporting.Second bearing 35 by the second elasticity baffle ring 36 to be installed on the other end of rotating shaft 22 towards the confined state of movement of end side.This second bearing 35 is entrenched in the path cylindrical portion 11c of motor mounting plate 11 with press-in state.
In addition, above-mentioned distributing board 14 is fixed in the second Boss features 28 with the state overlapping with the second Boss features 28 across liner 37 by fixed-use bolt 38.This distributing board 14 is formed with through hole 39.The state that distributing board 14 is inserted in this through hole 39 with electromagnetic clutch 6 is configured between stator 21 and motor mounting plate 11.
Electromagnetic clutch 6 is with the inner peripheral portion making the through state of rotating shaft 22 be accommodated in stator 21.Above-mentioned output gear 3 is arranged on the end adjacent with motor mounting plate 11 of this electromagnetic clutch 6, and is accommodated in the large footpath cylindrical portion 11b of motor mounting plate 11.
As shown in FIG. 2 and 3, electromagnetic clutch 6 is by being fixed in the field core 34 of stator 21 and forming relative to multiple parts that this field core 34 can rotate.
Field core 34 is formed as the circular of the endless groove 41 of the other end side opening had towards this drive unit 1.Inner circumferential side in endless groove 41 accommodates clutch coil 42 (magnet exciting coil).Magnet exciting coil 42 is connected with circuit by the control of not shown wire with distributing board 14.A part for revolving part (input rotating parts) 43 is inserted in the outer circumferential side of endless groove 41.
Revolving part 43 forms the parts of magnetic loop for cooperating with field core 34.Revolving part 43 is formed as the circular of the endless groove 44 of the end side opening had towards this drive unit 1.In detail, as shown in Figure 3, this revolving part 43 is made up of friction plate (friction part) 43c of inner core 43a, urceolus 43b and annulus tabular, inner core 43a is fixed in rotating shaft 22 with the state chimeric with rotating shaft 22, urceolus 43b is inserted in field core 34, and friction plate 43c connects above-mentioned inner core 43a and urceolus 43b.Friction plate 43c extends along the direction orthogonal with the axis direction of rotating shaft 22.
The inner peripheral portion of field core 34 is formed as being separated from the inner core 43a of revolving part 43 towards radial outside.Further, the urceolus 43b of revolving part 43 is formed as being separated from the peripheral part of field core 34 towards radially inner side.Therefore, this revolving part 43 is the parts being positioned at rotating shaft 22 on same axis and rotating integratedly with rotating shaft 22 by the driving undertaken by motor 2.
Multiple parts that can rotate relative to field core 34 in electromagnetic clutch 6 refer to: above-mentioned revolving part 43; The armature hub 45 of the position adjacent with this revolving part 43 is arranged in another side of drive unit 1; And the armature 46 to rotate integratedly with this armature hub 45.
Armature hub 45 is through with chimeric state by rotating shaft 22, and is supported as rotatable by rotating shaft 22.This armature hub 45 has: for the boss portion 45a that rotating shaft 22 is through; And the cover 45b to extend from this boss portion 45a towards radial outside.Armature 46 is formed as discoideus, and is positioned between the cover 45b of armature the hub 45 and friction plate 43c of revolving part 43.
This armature 46 is maintained at the end 45c being positioned at the end side of this drive unit 1 of armature hub 45 with the state rotated integratedly with armature hub 45 in mobile mode freely in the axial direction.Such as, the end 45c of armature 46 and armature hub 45 is utilized to form spline.
When the clutch coil 42 of field core 34 is excited, magnetic flux is directed to armature 46 from friction plate 43c, and thus, armature 46 is adsorbed on friction plate 43c by magnetic force.Be excited by clutch coil 42 under the state that rotating at revolving part 43, armature 46 is adsorbed on friction plate 43c by magnetic force, becomes the state by friction apply and rotates integratedly with revolving part 43.Cut off clutch coil 42 power supply state under, based on friction engaging eliminate, become cannot between friction plate 43c and armature 46 transferring power.That is, this electromagnetic clutch 6 is the devices optionally rotation of revolving part 43 being passed to armature hub 45.
The boss portion 45a of armature hub 45 is entrenched in the axle center part of above-mentioned output gear 3 with the state rotated integratedly.That is, armature hub 45, armature 46 and output gear 3 rotate all the time integratedly.Boss portion 45a is clamped by revolving part 43 and the second above-mentioned elasticity baffle ring 36.Further, revolving part 43 is clamped by the first above-mentioned elasticity baffle ring 32 and armature hub 45.That is, electromagnetic clutch 6 is positioned between clutch shaft bearing 31 and the second bearing 35.
The cover 45b of armature hub 45 is formed as the bottomed cylindrical of the end side opening towards this drive unit 1, has cylindric cylindrical wall 45d at peripheral part.This cylindrical wall 45d is rotatably inserted in the through hole 39 of distributing board 14, and extends from the peripheral part of armature hub 45 along the axis direction of rotating shaft 22.Further, this cylindrical wall 45d surrounds from the outside of radial direction the friction apply portion 47 be made up of friction plate 43c and the armature 46 of revolving part 43, and separates between this friction apply portion 47 and distributing board 14.
Form according to the armature hub 45 of this structure and armature 46 and export rotating parts 48, this output rotating parts 48 is rotatably through and rotate integratedly with output gear 3 by rotating shaft 22, and engages with as the revolving part 32 inputting rotating parts and be separated.
In the drive unit 1 formed by this way, when motor winding 26 is powered, by the torque that motor winding 26 and permanent magnet 24 produce, rotor 5 rotates together with rotating shaft 22.When rotating shaft 22 rotates, the revolving part 43 of electromagnetic clutch 6 also rotates integratedly with rotating shaft 22.Now, when the clutch coil 42 of electromagnetic clutch 6 is in non-excited state, armature 46 is separated with the friction plate 43c of revolving part 43, and therefore the rotation of revolving part 43 can not be passed to output gear 3.When clutch coil 42 is excited, armature 46 is attracted by the magnetic force the friction plate 43c in revolving part 43, and armature 46 engages with friction plate 43c.Thus, armature hub 45 and output gear 3 rotate integratedly with revolving part 43, thus drive deceleration gear wheel 4.The rotation of this deceleration gear wheel 4 is detected by the rotation sensor 17 be made up of permanent magnet 16 and Magnetic Sensor 15.
In this drive unit 1, motor 2 and electromagnetic clutch 6 are positioned on same axis, and electromagnetic clutch 6 is accommodated in the stator 21 of motor 2.Therefore, according to this embodiment, can provide small-sized and the drive unit of light weight.Further, due to the stator 21 of motor 2 can be utilized to support electromagnetic clutch 6, if compared with being therefore installed on the existing drive unit of housing respectively with above-mentioned two parts, then structure simplifies and can limit lower by manufacturing cost.
Further, the electromagnetic clutch 6 of this drive unit 1 is the parts of the rotation of transmitting the motor 2 be not decelerated.Therefore, if compared with the electromagnetic clutch of the rotation of the motor after being decelerated with transmission, even if then this electromagnetic clutch 6 transmission of power power is relatively little also harmless, therefore, it is possible to miniaturized.
Thus, according to the present embodiment, can provide a kind of the transmission of power power of electromagnetic clutch 6 can be prevented not enough and miniaturization and lightweight can be realized and can must be lower by price limit drive unit.
Drive unit 1 based on the present embodiment possesses the distributing board 14 being electrically connected on motor winding 26 and electromagnetic clutch 6.This distributing board 14 is formed with through hole 39, and is configured between stator 21 and motor mounting plate 11 with the state that electromagnetic clutch 6 is inserted in this through hole 39.
This electromagnetic clutch 6 possesses: the field core 34 of ring-type, and this field core 34 is fixed on the inner peripheral portion of stator 21 with the state being through with rotating shaft 22; And clutch coil 42, this clutch coil 42 is housed inside in above-mentioned field core 34.
Further, this electromagnetic clutch 6 possesses revolving part 43, armature hub 45 and armature 46.Armature hub 45 has the friction plate 43c extended along the direction orthogonal with the axis direction of rotating shaft 22, is cooperate with field core 34 with forming the parts of magnetic loop.This armature hub 45 is arranged on revolving part 43 in the adjacent position of axis direction.Armature 46 to be kept by armature hub 45 in mobile mode freely in the axial direction with the state rotated integratedly with this armature 46 and is adsorbed on the parts of friction plate 43c by magnetic force.
The cylindrical wall 45d extended in the axial direction is provided with at the peripheral part of armature hub 45.This cylindrical wall 45d surrounds the friction apply portion 47 that is made up of friction plate 43c and armature 46 and to the parts separated between friction apply portion 47 and distributing board 14 from radial outside.
In monolithic friction-type electromagnetic clutch, abrasive dust can be produced because of the friction between the friction plate of revolving part and armature.If the amount of dispersing of this abrasive dust is many, then the reliability step-down of the electric component such as distributing board.But in the present embodiment, abrasive dust is blocked by the cylindrical wall 45d of armature hub 45, be therefore difficult to be attached to distributing board 14.Therefore, it is possible to provide a kind of high drive unit of reliability that can prevent the short trouble of distributing board 14, action.
The shape that the part that the peristome 13 of the motor mounting plate 11 in the present embodiment is formed as distributing board 14 is exposed.The part exposed at peristome 13 in distributing board 14 is provided with Magnetic Sensor 15.This Magnetic Sensor 15 is oppositely arranged with permanent magnet 16, the parts of the rotation sensor 17 forming the rotation detecting deceleration gear wheel 4 of cooperating with this permanent magnet 16, wherein, permanent magnet 16 is arranged at and contacts with output gear 3 and the deceleration gear wheel 4 rotated integratedly.
According to the present embodiment, because Magnetic Sensor 15 is arranged on the cylindrical wall 45d position in the outer part than armature hub 45, therefore the abrasive dust of electromagnetic clutch 6 is difficult to the distribution part being attached to Magnetic Sensor 15 and periphery thereof.Therefore, according to the present embodiment, a kind of drive unit that can detect the rotation of deceleration gear wheel 4 exactly can be provided.
The electromagnetic clutch 6 used in based on the drive unit 1 of the present embodiment is monolithic friction-type electromagnetic clutch.But the present invention is not limited to such restriction.That is, for electromagnetic clutch 6, although and not shown, also can use multi-disc friction type electromagnetic clutch, electromagnetism hysteresis cluth, powder clutch etc.
Further, the slave unit connecting portion in the present embodiment is made up of peristome 13, and this peristome 13 is formed as the size that output gear 3 and Magnetic Sensor 15 both sides can expose.But slave unit connecting portion also can be made up of the through hole being formed in the position relative with output gear 3 in motor mounting plate 11 and the through hole being formed in the position relative with Magnetic Sensor 15.
In addition, the output gear 3 in the present embodiment is arranged at armature hub 45.Specifically, output gear 3 and armature hub 45 split are formed, and are fixed in the boss portion 45a of armature hub 45 with the state rotated integratedly with armature hub 45.But armature hub 45 and output gear 3 also can use resin material etc. by one-body molded and form as one.
In addition, output gear 3 be for by the Power output of motor 2 to an example of the parts (output block) of the outside of drive unit 1.As output block, such as, it also can be the worm screw (helical gear) etc. of worm gear.In this case, to contact with output block and the driven-side rotor rotated becomes worm gear (helical gear).
Further, in the present embodiment, not using the deceleration gear wheel 4 that engages with output gear 3 constitutive requirements as drive unit 1, but also deceleration gear wheel 4 can be contained in the constitutive requirements of drive unit 1.Slow down large with the diameter specific output gear 3 of gear wheel 4, utilize output gear 3 and deceleration gear wheel 4 to form reducing gear.When using deceleration with gear wheel 4 as the constitutive requirements of drive unit 1 when, this reducing gear is built in drive unit 1.
Claims (5)
1. a drive unit (1), it is characterized in that, described drive unit comprises:
The stator (21) of ring-type, this stator has motor winding (26);
Rotor (5), this rotor has the permanent magnet (24) relative with described motor winding, and rotates by the torque produced by described motor winding and described permanent magnet;
Rotating shaft (22), this rotating shaft is rotatable by an overhang bracket of described stator under the state of the axle center part of through described stator, and an end of described rotating shaft is installed on described rotor to rotate integratedly with described rotor;
Motor installing component (11), this motor installing component is fixed on the other end of described stator, and by the other end of described rotating shaft supporting for rotatable;
Electromagnetic clutch (6), this electromagnetic clutch is accommodated in the inner peripheral portion of described stator with the state of described rotating shaft this electromagnetic clutch through; And
Output block (3), this output block is arranged at described electromagnetic clutch,
Described electromagnetic clutch has:
Input rotating parts (43), this input rotating parts and described rotating shaft to be positioned on same axis and to rotate integratedly with described rotating shaft; And
Export rotating parts (48), described rotating shaft is through described output rotating parts rotatably, and described output rotating parts rotates integratedly with described output block and engages with described input rotating parts and be separated.
2. drive unit according to claim 1, is characterized in that:
Described drive unit also possesses distributing board (14), this distributing board to be configured between described stator with described motor installing component and to be electrically connected with described motor winding and described electromagnetic clutch, and described distributing board has the through hole (39) inserted for described electromagnetic clutch;
Described electromagnetic clutch also has:
The field core (34) of ring-type, this field core is fixed on the inner peripheral portion of described stator with the state of described rotating shaft this field core through; And
Magnet exciting coil (42), this magnet exciting coil is housed inside described field core;
Described input rotating parts has the friction part (43c) extended along the direction orthogonal with the axis direction of described rotating shaft, and cooperates with described field core and form magnetic loop;
Described output rotating parts has:
Armature hub (45), described rotating shaft is this armature hub through rotatably, and described output block is arranged at described armature hub; And
Armature (46), this armature is moved freely by the described armature hub described axis direction that remains along with the state rotated integratedly with described armature hub, and is adsorbed on described friction part by magnetic force; And
Described armature hub has cylindrical wall (45d), this cylindrical wall extends from the peripheral part of described armature hub along described axis direction, surround the friction apply portion (47) be made up of described friction part and described armature from radial outside, and separate between described friction apply portion and described distributing board.
3. drive unit according to claim 2, it is characterized in that, described drive unit also possesses Magnetic Sensor (15), this Magnetic Sensor is arranged on described distributing board, contacts and the rotation of described driven-side rotor is detected in magnetic field that the magnet (16) of driven-side rotor (4) that rotates produces by detecting to be arranged at described output block.
4. drive unit according to claim 3, is characterized in that:
Described output block and described motor installing component adjoin and configure; And
Described motor installing component has the slave unit connecting portion (13) that described output block is exposed.
5. drive unit according to claim 4, is characterized in that:
Described slave unit connecting portion is formed as the shape exposed at least partially making described distributing board; And
The part by described slave unit connecting portion exposed of described magnetic sensor configuration in described distributing board.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013235818A JP6145391B2 (en) | 2013-11-14 | 2013-11-14 | Drive device |
| JP2013-235818 | 2013-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104638824A true CN104638824A (en) | 2015-05-20 |
| CN104638824B CN104638824B (en) | 2017-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410646195.7A Active CN104638824B (en) | 2013-11-14 | 2014-11-14 | Drive device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6145391B2 (en) |
| CN (1) | CN104638824B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661374A (en) * | 2018-06-29 | 2020-01-07 | 博世株式会社 | Driving motor and electric vehicle |
| CN113677907A (en) * | 2019-04-10 | 2021-11-19 | 华纳电气科技有限公司 | Rotary coupling device with magnetic flux conducting bearing shield |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108886330A (en) * | 2016-03-17 | 2018-11-23 | 西铁城时计株式会社 | Electrostatic electromechanical transducer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110661374A (en) * | 2018-06-29 | 2020-01-07 | 博世株式会社 | Driving motor and electric vehicle |
| CN113677907A (en) * | 2019-04-10 | 2021-11-19 | 华纳电气科技有限公司 | Rotary coupling device with magnetic flux conducting bearing shield |
| CN113677907B (en) * | 2019-04-10 | 2023-05-23 | 华纳电气科技有限公司 | Rotary coupling device with magnetic flux conducting bearing shield |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015094455A (en) | 2015-05-18 |
| JP6145391B2 (en) | 2017-06-14 |
| CN104638824B (en) | 2017-08-04 |
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