JP4417803B2 - motor - Google Patents

Description

  The present invention relates to a motor including a control circuit member.

  Conventionally, as a motor for a power window device or the like, a motor main body, a speed reduction mechanism for decelerating the rotation of a rotating shaft in the motor main body, a speed reducing unit housed in a gear housing, and a control for controlling the rotation drive of the motor main body Some include a circuit member and an electrical circuit component for preventing noise (such as a choke coil or a capacitor) for removing noise generated by the control circuit member.

As such a motor, there is a motor in which a control circuit member and a noise prevention electric circuit component (capacitor) are housed and held in a gear housing (for example, see Patent Document 1).
German Patent Application Publication No. 10020017

  However, in the motor as described above, there is a problem that the motor case (gear housing constituting a part thereof) is increased in size with the increase in size of electric circuit components for preventing noise (choke coil, capacitor, etc.). Further, depending on the location of the electrical circuit component for noise prevention, the electrical connection becomes complicated.

  The present invention has been made to solve the above-described problems, and the object thereof is to suppress the increase in size of the motor case due to the electrical circuit component for noise prevention, and the electrical circuit component for noise prevention. It is an object of the present invention to provide a motor that can facilitate electrical connection.

According to the first aspect of the present invention, a motor main body having a brush holder for holding a power feeding brush, a control circuit member for controlling the rotational drive of the motor main body, and noise generated by the control circuit member are removed. In the motor provided with the electric circuit component for noise prevention, the brush holder includes an electric circuit component holding portion for holding the electric circuit component for noise prevention outside the motor body , and the electric circuit component holding portion. Is set to have elasticity, and the brush holder is provided with a sealing material, and the sealing material covers at least a part of the brush holder including the electrical circuit component for noise prevention and the electrical circuit component holding portion. It has a covering part .

In a second aspect of the present invention, a motor main body having a brush holder for holding a power supply brush, a sub housing assembled to the main body housing of the motor main body with the brush holder interposed therebetween, and the sub housing In a motor comprising a control circuit member housed inside to control the rotational drive of the motor body, and a noise prevention electric circuit component for removing noise generated by the control circuit member, the brush holder includes the brush holder, An electric circuit component holding portion for holding the electric circuit component for preventing noise is provided outside the main body housing and the sub housing, and the electric circuit component holding portion is set to have elasticity and seals the brush holder The sealing material includes the brush holder including the electric circuit component for preventing noise and the electric circuit component holding portion. Having a coating section applied to a part of.

In a third aspect of the present invention, a motor main body having a brush holder for holding a power supply brush, a sub housing assembled to the main body housing of the motor main body with the brush holder interposed therebetween, and the sub housing The brush holder in a motor comprising a control circuit member housed inside for controlling the rotational drive of the motor body and at least two electrical circuit components for noise prevention for removing noise generated by the control circuit member Is provided with an electric circuit component holding portion outside the main body housing and the sub-housing, and at least one of the at least two anti-noise electric circuit components is provided in the electric circuit component holding portion. retained, the other electric circuit components for noise suppression is held by the control circuit member, the electric circuit component holding portion, the elastic The brush holder is provided with a sealing material, and the sealing material includes the electric circuit component holding portion and the electric circuit component for noise prevention held by the electric circuit component holding portion. A covering portion that covers at least a part is provided .

In the invention described in 請 Motomeko 4, in the motor according to any one of claims 1 to 3, wherein the brush holder has a connector portion which an external connector is fitted.

According to a fifth aspect of the present invention, in the motor according to the fourth aspect , the electric circuit component holding portion is provided adjacent to the connector portion.
According to a sixth aspect of the present invention, in the motor according to the fifth aspect, the electrical circuit component for noise prevention is in a direction in which the external connector is fitted to the connector portion with respect to the electrical circuit component holding portion. It can be assembled from different directions.

In the invention described in claim 7, in the motor according to any one of claims 1 to 6, wherein the covering portion, the sealing member and the member for preventing the penetration of liquid into the motor body internal It was integrally formed with.
(Function)
According to the first aspect of the present invention, since the brush holder includes the electric circuit component holding portion for holding the electric circuit component for noise prevention outside the motor body, the motor case ( For example, an increase in size of the yoke and the gear housing can be suppressed. In addition, since the electric circuit component holding part for holding the electric circuit component for noise prevention is provided in the brush holder, the electrical connection of the electric circuit component for noise prevention can be facilitated. For example, the wiring of the electrical circuit component for noise prevention can be easily arranged together with the wiring of the power supply brush (in the same process). Further, for example, it is possible to avoid long wiring of the electrical circuit component for noise prevention.

  According to the second aspect of the present invention, the brush holder includes the electric circuit component holding portion for holding the electric circuit component for noise prevention outside the main body housing and the sub housing of the motor main body. An increase in size of a motor case (a main body housing and a sub-housing, such as a yoke and a gear housing) due to circuit components can be suppressed. In addition, since the electric circuit component holding portion for holding the noise prevention electric circuit component is provided in the brush holder, the electric connection of the noise prevention electric circuit component can be facilitated. For example, the wiring of the electrical circuit component for noise prevention can be easily arranged together with the wiring of the power supply brush (in the same process). Further, for example, it is possible to avoid long wiring of the electrical circuit component for noise prevention.

  According to invention of Claim 3, even if it is a motor provided with at least two electric circuit components for noise prevention, these electric circuit components for noise prevention are made into a brush holder (electric circuit component holding part) and a control circuit member. Can be arranged respectively. Therefore, it can suppress that the subhousing in which the control circuit member is accommodated becomes extremely large. In addition, since the electric circuit component holder that holds at least one electric circuit component for noise prevention is provided in the brush holder, the electric connection of the electric circuit component for noise prevention can be facilitated. For example, the wiring of the electrical circuit component for noise prevention can be easily arranged together with the wiring of the power supply brush (in the same process). Further, for example, it is possible to avoid long wiring of the electrical circuit component for noise prevention.

According to the first to third aspects of the present invention, since the electric circuit component holding portion is set to have elasticity, the dimensional variation of the electric circuit component for noise prevention and the variation (position) at the time of assembly are made elastic. Therefore, design and assembly management can be facilitated. Moreover, the electrical circuit component for noise prevention can be firmly held by the covering portion. Moreover, the waterproofness and insulation of the electrical circuit component for noise prevention can be ensured at the covering portion.

According to the invention described in claim 4 , since the brush holder includes the connector portion into which the external connector is fitted, the connector portion does not increase the number of parts. In addition, for example, the wiring of the connector portion can be easily arranged (in the same process) together with the wiring of the power supply brush and the wiring of the electrical circuit component for noise prevention. Further, for example, it is possible to avoid long wiring of the connector portion.

According to the fifth aspect of the present invention, since the electric circuit component holding portion is provided adjacent to the connector portion, the wiring of the electric circuit component for noise prevention is easily connected (at a short distance) to the wiring of the connector portion. be able to.

According to the invention described in claim 6 , since the electrical circuit component for noise prevention can be assembled to the electrical circuit component holding portion from a direction different from the direction in which the external connector is fitted to the connector portion, The arrangement space for the electrical circuit component for prevention and the external connector can be easily secured, and the electrical circuit component for noise prevention and the external connector can be easily assembled.

According to the invention described in claim 7, the coating unit is to be integrally molded with the sealing member and the member for preventing the penetration of liquid into the motor body interior, an increase of manufacturing processes and number of parts While suppressing, it is possible to prevent liquid from entering the motor body.

  According to the present invention, it is possible to provide a motor that can suppress an increase in size of a motor case due to electrical circuit components for noise prevention, and that can facilitate electrical connection of the electrical circuit components for noise prevention. Can do.

  Hereinafter, an embodiment in which the present invention is embodied in a motor 1 of a power window device in a vehicle will be described with reference to FIGS. As shown in FIG. 1, the motor 1 includes a motor main body 2 and a speed reducing unit 3 for decelerating and outputting the rotation of the motor main body 2.

  As shown in FIGS. 1 and 3, the motor body 2 is fixed to a yoke housing (hereinafter simply referred to as a yoke) 4 as a body housing formed in a flat, substantially bottomed cylindrical shape, and to the inner surface of the yoke 4. A pair of magnets 5 (see FIG. 3), an armature (armature) 6 rotatably supported in the yoke 4, a brush holder 7, and a pair of brushes 8 are provided.

  The brush holder 7 includes a brush holder resin body 7a made of a resin material. The brush holder resin body 7a includes a holder body 7b, a flange portion 7c, an extension portion 7d, a connector portion 7e, and an electric circuit component holding portion. 7f (see FIG. 4) is integrally formed. The holder main body 7 b is formed so as to be substantially accommodated in the opening of the yoke 4. A bearing 9 is fixed to the central hole of the holder main body 7b, and the front end side of the rotary shaft 10 of the armature 6 is rotatably supported by the bearing 9. The tip of the rotating shaft 10 protrudes to the outside of the yoke 4, and a sensor magnet 10a is fixed to the protruding portion via a metal plate. A brush 8 as a power feeding brush is held on the inner side of the yoke 4 in the holder body 7b, and the brush 8 is in pressure contact with a commutator 11 fixed to the rotary shaft 10. The flange portion 7c extends in a flange shape from the holder body 7b. Further, the extending portion 7d extends from a part of the flange portion 7c along one of the flat surfaces 4a of the yoke 4 (see FIG. 1, a surface parallel to the paper surface in FIGS. 1 and 3) (in FIGS. 1 and 3). , Right).

  The connector part 7e is provided at the tip of the extension part 7d. The connector portion 7e is fitted with the external connector 101 (see FIG. 4) from the direction orthogonal to the flat surface 4a (in FIG. 1 and FIG. 3, the direction orthogonal to the paper plane and the back side of FIG. 2, the front side of FIG. 2). It is made possible. That is, as shown in FIG. 4, the connector portion 7e is open in the direction perpendicular to the flat surface 4a (in FIG. 1 and FIG. 3, the direction orthogonal to the paper surface and the back side of the paper surface, the front side of the paper surface in FIG. 2). It is formed in a substantially bottomed rectangular tube shape (cross-sectional U shape).

  As shown in FIG. 4, the electric circuit component holding part 7f is provided adjacent to the connector part 7e. Specifically, the electric circuit component holding portion 7f is provided along a flat surface 4a of the yoke 4 from a part of the outer wall of the connector portion 7e (see FIG. 1, a surface parallel to the paper surface in FIGS. 1 and 3) (see FIG. 1). 1 and the right side in FIG. 3. A pair of electric circuit component holding portions 7f of the present embodiment are provided and are set to have elasticity. Further, the electric circuit component holding portion 7f has curved portions 7g that are curved in directions away from each other at the tip portions.

  Further, as shown in FIG. 3, the brush holder resin body 7a is insert-molded so that a plurality of brush side terminals 12 and connector side terminals 13 are embedded in a partially exposed state. The brush side terminal 12 extends from the inner side of the yoke 4 in the holder main body 7b to the extension portion 7d, and the internal connection terminal 12a as the tip thereof extends from the extension portion 7d in the axial direction of the motor main body 2 (in FIG. Projected (exposed) downward (downward). The brush 8 is electrically connected to the base end portion of the brush side terminal 12 through a pigtail.

  The connector-side terminal 13 extends from the connector portion 7e to the extending portion 7d, and the internal connection terminal 13a that is the tip of the connector-side terminal 13 protrudes from the extending portion 7d in the axial direction of the motor body 2 (downward in FIG. 3) ( Exposed). The base end portion of the connector-side terminal 13 is exposed at the connector portion 7e to form an external connection terminal 13b, and the external connector 101 is fitted into the connector portion 7e so that the external terminal 101a of the external connector 101 is electrically connected. Will be connected. The internal connection terminals 12a and 13a are arranged in parallel along the orthogonal direction of the flat surface 4a (in FIG. 3, the direction orthogonal to the paper surface). In FIG. 3, only one internal connection terminal 12a, 13a is shown because the internal connection terminals 12a, 13a are juxtaposed in the direction perpendicular to the plane of the drawing.

  Further, in the connector side terminal 13 of the present embodiment, as shown in FIGS. 3 and 5, a noise prevention terminal 13c is provided between the internal connection terminal 13a and the external connection terminal 13b (so as to branch). Is formed. The noise prevention terminal 13c extends toward the electric circuit component holding portion 7f, and its tip end portion is projected (exposed) from the connector portion 7e.

  And the choke coil C as an electrical circuit component for noise prevention for removing noise is electrically connected to the noise prevention terminal 13c. The choke coil C is held by an electric circuit component holding portion 7f (see FIG. 4). Specifically, the choke coil C of the present embodiment is of a toroidal type, and a pair of electric circuit component holding portions 7f are fitted into the center hole (so as to bend radially inward), and the center hole Are held by being biased radially outward by the pair of electric circuit component holding portions 7f. The choke coil C has a direction different from the direction in which the external connector 101 is fitted to the connector portion 7e (the orthogonal direction in the present embodiment), and the flat surface 4a of the yoke 4 (see FIG. 1, FIG. 1). 3 and a plane parallel to the paper surface in FIG. 3 (on the right side in FIGS. 1 and 3). Further, since the curved portion 7g of the electric circuit component holding portion 7f is in close contact with the curved surface on the inner periphery of the choke coil C, the electric circuit component holding portion 7f and the choke coil C are prevented from coming off.

  Further, a sealing material 14 is provided on the brush holder 7 (brush holder resin body 7a). Specifically, the sealing material 14 is made of an elastomer. As shown in FIGS. 3 and 4, the seal material 14 is provided so as to substantially cover the flange portion 7 c, the extension portion 7 d, the connector portion 7 e (excluding the opening), and the like. The sealing material 14 includes a covering portion 14a (see FIGS. 3 to 5) that covers the choke coil C (covers the electric circuit component holding portion 7f and the connector portion 7e in the vicinity thereof). Further, as shown in FIGS. 4 and 5, the sealing material 14 has a connecting seal portion 14 b extending in a substantially cylindrical shape (bellows shape) from the outer edge of the opening portion of the connector portion 7 e in the opening direction.

  As shown in FIGS. 1 and 3, the speed reduction unit 3 includes a gear housing 21 as a sub housing, a worm shaft 22, a worm wheel 23, a clutch 24, a control circuit member 25, and a cover 26. In the present embodiment, the yoke 4 and the gear housing 21 constitute a motor case.

The gear housing 21 is made of a resin material. The gear housing 21 includes a fixed portion 21a, a worm accommodating portion 21b, a wheel accommodating portion 21c, and a circuit accommodating portion 21d.
The fixing portion 21a is formed in a shape corresponding to the flange portion 4b formed in the opening of the yoke 4 and is fixed to the flange portion 4b with a screw 27. The brush holder 7 (brush holder resin) is fixed together with the flange portion 4b. The flange part 7c and the extension part 7d of the body 7a) are clamped (via the sealing material 14). Note that the gear housing 21 (fixed portion 21a) is interposed between the flange 4c of the brush holder 7 (brush holder resin body 7), the extended portion 7d, and the sealing material 14 covering them with respect to the yoke 4 in this way. As a result, the liquid is prevented from entering the motor 1 (motor case) at that portion.

  The worm accommodating portion 21b is formed to extend in a cylindrical shape on the extension line of the rotary shaft 10, and supports the worm shaft 22 in a rotatable manner therein. Further, a clutch 24 (see FIG. 3) for drivingly connecting the worm shaft 22 and the rotary shaft 10 is provided on the motor body 2 side inside the worm housing portion 21b. The clutch 24 operates to lock the rotation of the worm shaft 22 so that the driving force from the rotating shaft 10 is transmitted to the worm shaft 22 and conversely, the driving force from the worm shaft 22 is not transmitted to the rotating shaft 10. That is, the clutch 24 is provided to prevent the motor 1 from rotating due to the force applied from the load side.

  The wheel accommodating part 21c is formed in a flat disk shape in a direction orthogonal to the worm accommodating part 21b, and supports the worm wheel 23 rotatably therein. The worm accommodating portion 21b and the wheel accommodating portion 21c are partially communicated with each other, and the worm shaft 22 and the worm wheel 23 are engaged with each other at the communicating portion. The wheel housing portion 21c is formed on the opposite side (left side in FIG. 1) of the connector portion 7e with respect to the worm housing portion 21b. Further, the flat surface 21e of the wheel accommodating portion 21c is formed along the flat surface 4a (see FIG. 1) of the yoke 4, and the surface of the gear housing 21 as viewed from the orthogonal direction of the flat surface 21e is the gear housing. 21 flat surfaces.

  The circuit accommodating part 21d is a position corresponding to the internal connection terminals 12a and 13a, and is formed such that the internal connection terminals 12a and 13a are disposed therein. Specifically, the circuit housing portion 21d is formed on the opposite side of the wheel housing portion 21c with respect to the worm housing portion 21b and between the worm housing portion 21b and the connector portion 7e. The circuit housing portion 21d communicates with the motor body 2 side (the portion corresponding to the sensor magnet 10a) inside the worm housing portion 21b. In addition, an opening 21f that allows the control circuit member 25 to be inserted from the direction along the axial direction of the rotary shaft 10 is formed in the circuit housing portion 21d. The opening 21f is set so that the opening direction (direction orthogonal to the opening 21f) is inclined with respect to the axial direction of the rotating shaft 10 and the orthogonal direction. The opening portion 21f of the present embodiment is an inclined straight line connecting the connector portion 7e and the tip side of the worm housing portion 21b (opposite side of the motor main body 2) when viewed from the direction orthogonal to the flat surface of the gear housing 21 ( It is formed so that there is no step. The internal connection terminals 12a and 13a of the brush side terminal 12 and the connector side terminal 13 are arranged at positions where they are exposed (visible) when viewed from the outside in the opening direction of the opening 21f. And the control circuit member 25 is substantially accommodated in the circuit accommodating part 21d.

  As shown in FIG. 3, the control circuit member 25 includes a base member 31, a heat sink 32, a mold IC 33, a capacitor 34 (an other) electrical circuit component for noise prevention, a hall element 35, a plurality of connection terminals 36, and the like. . The base member 31 is made of a resin material and has a substantially plate shape. In the base member 31, a substantially plate-shaped mold IC 33 is fixed to one surface (the left surface in FIG. 3) via a plate-shaped heat sink 32, and the other surface (the right surface in FIG. 3). A substantially cylindrical capacitor 34 is fixed to the front. In the base member 31, a Hall element 35 is fixed at a position corresponding to the sensor magnet 10a on one surface (the left surface in FIG. 3). In the base member 31, the other side (the right side in FIG. 3) is electrically connected to the mold IC 33 or the like at a position corresponding to the brush side terminal 12 and the internal connection terminals 12 a and 13 a of the connector side terminal 13. A plurality of connection terminals 36 connected to are provided. In the present embodiment, the control circuit member 25 does not include a relay as a drive circuit unit, and the mold IC 33 includes a power MOSFET as a drive circuit unit therein. When the mold IC 33 determines that the vehicle window glass has been pinched in accordance with the rotational speed of the sensor magnet 10a (rotating shaft 10) detected by the Hall element 35, the mold IC 33 applies to the brush 8 (motor body 2). This is a circuit for performing pinching prevention control such as supplying a reverse rotation current.

  The control circuit member 25 formed in this way protrudes into the gear housing 21 (circuit accommodating portion 21d) from the opening 21f in a state where the motor main body 2 and the speed reduction portion 3 are assembled, and a part of the control circuit member 25 protrudes to the outside. It is assembled to do. And by being assembled in this way, the plurality of connection terminals 36 can be electrically connected to the internal connection terminals 12a and 13a (the brush 8 and the connector portion 7e) of the brush side terminal 12 and the connector side terminal 13, respectively. It is arranged (to contact). Of course, in this state, the plurality of connection terminals 36 are arranged at positions that are exposed (visible) when viewed from the outside in the opening direction of the opening 21f, like the internal connection terminals 12a and 13a. Of course, in this state, the plurality of connection terminals 36 are arranged in a direction perpendicular to the flat surfaces (flat surfaces 4a and 21e) of the gear housing 21 (in the direction perpendicular to the paper surface in FIG. 3), like the internal connection terminals 12a and 13a. Along the line. The plurality of connection terminals 36 exposed from the outside in the opening direction of the opening 21f are electrically connected to the internal connection terminals 12a and 13a by laser welding.

Then, a metal cover 26 is fixed to the opening 21f of the gear housing 21 by point caulking so as to close the opening 21f in a state where the control circuit member 25 is assembled.
The motor 1 of the power window device configured as described above is fixed to the inner panel 51 (see FIG. 4) between the inner panel 51 (see FIG. 4) of the vehicle door and the outer panel (not shown). Specifically, the inner panel 51 has an inner panel side insertion hole 51a formed therein, and the motor 1 is not shown in the drawing so that the tip of the coupling seal portion 14b is in close contact with the inner panel side insertion hole 51a (around). It is fixed by. As a result, for example, even if liquid enters between the inner panel 51 and the outer panel, entry of liquid into the motor 1 (motor case) and entry of liquid into the door trim side are prevented.

  Then, an external connector 101 (see FIG. 4) is fitted to the connector portion 7e from the back side of the inner panel 51 (that is, the anti-outer panel side and the door trim side), whereby external terminals provided on the external connector 101 101a is electrically connected to the external connection terminal 13b. The external terminal 101a is connected to a control device (power supply device) (not shown). The output shaft 23a (see FIG. 1) connected to the worm wheel 23 is drivingly connected to a regulator (sector gear) (not shown) and is drivingly connected to the vehicle window glass via the regulator.

Next, characteristic effects of the above embodiment will be described below.
(1) The brush holder 7 (brush holder resin body 7a) includes an electric circuit component holding portion 7f for holding the choke coil C outside the motor body 2. Therefore, an increase in size of the motor case (the yoke 4 and the gear housing 21) due to the choke coil C can be suppressed. Moreover, since the electric circuit component holder 7f for holding the choke coil C is provided in the brush holder 7 (brush holder resin body 7a), the electrical connection of the choke coil C can be facilitated. Specifically, the wiring of the choke coil C (connector side terminal 13 (terminal 13c for noise prevention)) can be easily arranged together with the wiring of the brush 8 (brush side terminal 12) (in the same process). Further, long wiring of the choke coil C can be avoided.

  (2) Since the electric circuit component holding portion 7f is set to have elasticity, it is possible to absorb the dimensional variation of the choke coil C and the (position) variation at the time of assembly with elasticity, and thus design and assembly management. Can be made easy. In particular, as in the present embodiment, the toroidal choke coil C tends to have large variations in inner diameter and outer diameter depending on how the coil is wound. However, since the electric circuit component holding portion 7f has elasticity, the variation is allowed. And can be easily held.

  (3) The brush holder 7 (brush holder resin body 7a) includes a connector portion 7e to which the external connector 101 is fitted. Therefore, the connector part 7e does not increase the number of parts. Moreover, the wiring of the connector portion 7e (connector side terminal 13 (external connection terminal 13b)), the wiring of the brush 8 (brush side terminal 12) and the wiring of the choke coil C (connector side terminal 13 (terminal 13c for noise prevention)) And can be arranged easily (in the same process). Further, it is possible to avoid long wiring of the connector portion 7e.

  (4) Since the electric circuit component holding part 7f is provided adjacent to the connector part 7e, the wiring of the choke coil C (the terminal 13c for noise prevention) can be easily (short) to the wiring of the connector part 7e (the external connection terminal 13b). Can be connected (by distance).

  (5) The choke coil C can be assembled to the electric circuit component holding portion 7f from a direction different from the direction in which the external connector 101 is fitted to the connector portion 7e (the orthogonal direction in the present embodiment). Therefore, the arrangement space for the choke coil C and the external connector 101 can be easily secured, and the choke coil C and the external connector 101 can be easily assembled.

  (6) Since the brush holder 7 (brush holder resin body 7a) is provided with the covering portion 14a that covers the choke coil C (including the electric circuit component holding portion 7f and the connector portion 7e in the vicinity thereof), the electric circuit The choke coil C can be firmly held as compared with the case where the component holding part 7f alone is used. Moreover, the waterproofness and insulation of the choke coil C disposed outside the motor case (the yoke 4 and the gear housing 21) can be ensured by the covering portion 14a.

  (7) Since the covering portion 14a is integrally formed of the same member as the sealing material 14 for preventing the liquid from entering the motor 1 (motor case), it is possible to suppress an increase in the manufacturing process and the number of parts. it can.

The above embodiment may be modified as follows.
In the above embodiment, the electric circuit component holding portion 7f is inserted into the central hole of the choke coil C (so that it can be bent inward in the radial direction). As long as the electric circuit component for preventing noise (choke coil C) can be held outside the (motor case), it may be changed to another shape.

  For example, as shown in FIG. A pair of electric circuit component holding portions 7h shown in FIG. 6 is provided so as to hold the outer periphery of the choke coil C so as to have elasticity. In addition, the electric circuit component holding portion 7h has curved portions 7i that are curved in directions close to each other at the tip portions so as to be in close contact with the curved surface on the outer periphery of the choke coil C. Even if it does in this way, the effect similar to the effect of the said embodiment can be acquired.

  In the above embodiment, the electric circuit component holding portion 7f (7h) holds the choke coil C. However, for other noise prevention for removing noise generated by the control circuit member (mold IC33). The electric circuit component may be held. For example, in the above embodiment, the capacitor 34 is provided in the control circuit member 25 and disposed in the gear housing 21, but this capacitor 34 (an electrical circuit component for noise prevention) is provided in the brush holder (brush holder resin body). The electric circuit component holding unit may be held (outside the motor main body 2). In this case, it is necessary to change the shape of the electric circuit component holding portion according to the capacitor. Of course, both the choke coil and the capacitor may be held (outside of the motor body 2) by an electric circuit component holding portion provided in the brush holder (brush holder resin body).

  In the above embodiment, the brush holder 7 (brush holder resin body 7a) is provided with the connector part 7e to which the external connector 101 is fitted. For example, the connector part is separately fixed to the gear housing. As a thing, you may change into the brush holder 7 (brush holder resin body 7a) which is not provided with the connector part 7e.

  In the above embodiment, the electric circuit component holding portion 7f (7h) is provided adjacent to the connector portion 7e. However, the present invention is not limited to this. For example, the electric circuit component holding portion is disposed on the opposite side of the connector portion ( You may provide in the other side on both sides of a rotating shaft and a worm shaft.

  In the above embodiment, the choke coil C can be assembled to the electric circuit component holding portion 7f from the direction orthogonal to the direction in which the external connector 101 is fitted to the connector portion 7e. It is not limited, You may change to the structure assembled | attached from another direction.

  In the above embodiment, the brush holder 7 (brush holder resin body 7a) is provided with the covering portion 14a that covers the choke coil C (including the electric circuit component holding portion 7f and the connector portion 7e in the vicinity thereof). However, the covering portion 14a may be omitted. In the above embodiment, the covering portion 14a is integrally formed with the same member as the sealing material 14 for preventing the liquid from entering the motor 1 (motor case), but the covering portion may be provided separately. In this case, the covering portion may be formed of another material.

  The control circuit member 25 of the above-described embodiment is of any other configuration as long as it can control the rotational drive of the motor body 2 (for example, the base member 31 is a circuit board or has a Hall element 35). (Such as a Hall element fixed directly to the gear housing).

  In the above embodiment, the rotary shaft 10 and the worm shaft 22 are drive-coupled via the clutch 24, but the clutch 24 is omitted and the rotary shaft 10 and the worm shaft 22 are drive-coupled (integral formation). May be.

  In the above-described embodiment, the motor is used in the power window device. However, the motor may be embodied in a motor for another device such as a sunroof motor or a door closer motor.

The top view of the motor in this Embodiment. The bottom view of the motor in this Embodiment. Fig. 3 is a cross-sectional view of a main part of the motor according to the present embodiment. AA sectional drawing of FIG. Side surface principal part sectional drawing of the motor in this Embodiment. Sectional drawing for demonstrating another example.

Explanation of symbols

  2 ... motor body, 4 ... yoke housing (main body housing), 7 ... brush holder, 7e ... connector portion, 7f, 7h ... electric circuit component holding portion, 8 ... brush (power supply brush), 14 ... sealing material, 14a ... Covering part, 21 ... gear housing (sub-housing), 25 ... control circuit member, 34 ... capacitor ((other) noise prevention electric circuit component), 101 ... external connector, C ... choke coil (electric noise prevention circuit component) ).

Claims (7)

A motor body having a brush holder for holding a power supply brush;
A control circuit member for controlling the rotational drive of the motor body;
In a motor comprising an electrical circuit component for preventing noise for removing noise generated by the control circuit member,
The brush holder includes an electric circuit component holding part for holding the electric circuit component for noise prevention outside the motor body ,
The electric circuit component holding portion is set to have elasticity,
The brush holder is provided with a sealing material, and the sealing material includes a covering portion that covers at least a part of the brush holder including the electric circuit component for preventing noise and the electric circuit component holding portion. . A motor body having a brush holder for holding a power supply brush;
A sub-housing that is assembled to the main body housing of the motor body via the brush holder;
A control circuit member that is housed in the sub-housing and controls the rotational drive of the motor body;
In a motor comprising an electrical circuit component for preventing noise for removing noise generated by the control circuit member,
The brush holder includes an electric circuit component holding portion for holding the electric circuit component for preventing noise outside the main body housing and the sub housing ,
The electric circuit component holding portion is set to have elasticity,
The brush holder is provided with a sealing material, and the sealing material has a covering portion that covers at least a part of the brush holder including the electric circuit component for preventing noise and the electric circuit component holding portion. motor. A motor body having a brush holder for holding a power supply brush;
A sub-housing that is assembled to the main body housing of the motor body via the brush holder;
A control circuit member that is housed in the sub-housing and controls the rotational drive of the motor body;
In a motor comprising at least two electrical circuit components for noise prevention for removing noise generated by the control circuit member,
The brush holder includes an electric circuit component holding portion outside the main body housing and the sub housing,
Of the at least two noise prevention electric circuit components, at least one noise prevention electric circuit component is held by the electric circuit component holding portion, and the other noise prevention electric circuit components are held by the control circuit member .
The electric circuit component holding portion is set to have elasticity,
The brush holder is provided with a sealing material, and the sealing material covers at least a part of the brush holder including the electric circuit component holding portion and the electrical circuit component for noise prevention held by the electric circuit component holding portion. A motor having a covering portion . The motor according to any one of claims 1 to 3,
The brush holder includes a connector portion into which an external connector is fitted . The motor according to claim 4 ,
The motor according to claim 1, wherein the electric circuit component holding portion is provided adjacent to the connector portion . The motor according to claim 5, wherein
The motor according to claim 1, wherein the electric circuit component for noise prevention can be assembled to the electric circuit component holding portion from a direction different from a direction in which the external connector is fitted to the connector portion . The motor according to any one of claims 1 to 6,
The motor according to claim 1, wherein the covering portion is integrally formed of the same member as the sealing material for preventing liquid from entering the motor body .

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