JP2007181383A - Motor device and wiper device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor device which can appropriately dissipate the heat generated in a drive control part or a motor part, and to provide a wiper device. <P>SOLUTION: A motor bracket part 30 is equipped with a motor fixing part 31 for fixing a wiper motor 50 as a motor, and a drive control unit fixing part 32, to which a drive control unit 60 for drive-controlling the wiper motor 50 is fixed. The drive control unit 60 is equipped with an accommodation case 61, having an opening part 61a, which opens to the motor bracket part 30 side and is formed into a substantially bottomed, square cylindrical shape. The accommodation case 61 is made of insulating resin, with its opening part 61a being closed by the motor bracket part 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a motor device and a wiper device that include a motor and a drive control unit that drives and controls the motor.

Conventionally, as described in Patent Document 1, for example, a wiper motor in which a drive control unit that controls a wiper operation is integrated with a motor speed reduction mechanism has been proposed. In the wiper device provided with such a wiper motor, the drive control unit is arranged so as to be stacked on a housing that houses the speed reduction mechanism, and is configured to fit within the outer shape of the housing of the wiper motor.
JP 2004-159392 A

  By the way, since a power system element such as a power MOSFET or a relay is used for the drive control unit, heat is generated from the drive control unit. Further, heat generated in the motor unit is transmitted to the drive control unit.

  However, according to the wiper device having the above-described configuration, the drive control unit is configured to be accommodated in the housing in a state where the drive control unit is stacked in the outer shape of the housing, so that the surface area (heat radiation area) of the housing is reduced. Therefore, the heat dissipation effect of the housing is lowered, and there is a possibility that the heat generated in the drive control unit and the motor unit cannot be properly radiated. In particular, in the wiper device described in Patent Document 1, the internal control circuit is provided in multiple layers in order to fit the drive control unit in the outer shape of the housing, so that the heat is more likely to be trapped. Such a problem is not limited to the wiper device, but also applies to a motor device such as a power window device or a sunroof device that includes a motor and a drive control unit (drive control unit) that controls the motor. Concerned.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a motor device and a wiper device that can appropriately dissipate heat generated in a drive control unit and a motor unit.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a motor comprising a motor, a motor bracket to which the motor is fixed, and a drive control unit having a control circuit for driving and controlling the motor. In the apparatus, the motor bracket includes a motor fixing portion and a drive control unit fixing portion arranged in parallel, and the motor and the drive control unit are fixed to correspond to the fixing portions, respectively. .

  According to this configuration, since the drive control unit fixing portion for fixing the drive control unit is provided on the motor bracket for fixing the motor, it becomes possible to arrange the control circuit without depending on the outer shape of the motor. It can be arranged in a relatively wide range on the surface of the surface. Therefore, the drive control unit can be arranged with a relatively high degree of freedom in plan with respect to the motor bracket. Further, the planar arrangement of the drive control unit using the motor bracket can enlarge the heat radiation area, and can appropriately dissipate heat generated in the drive control unit and the motor unit.

According to a second aspect of the present invention, in the motor device according to the first aspect, the motor bracket is made of metal.
According to this configuration, since the motor bracket is made of metal and has high thermal conductivity, heat generated in the control circuit and the motor is quickly transmitted to the motor bracket. Therefore, it is possible to prevent heat from being accumulated in the control circuit and the motor.

  According to a third aspect of the present invention, in the motor device according to the first or second aspect, the drive control unit includes a storage case that has an opening and stores the control circuit. The storage case is fixed to the motor bracket so as to be closed by the motor bracket.

  According to this configuration, since the opening of the storage case is closed by the motor bracket, the heat generated in the drive control unit is directly transmitted to the motor bracket. Therefore, the heat generated in the control circuit is dissipated not only by the drive control unit but also from the motor bracket, so the heat dissipation area is significantly increased, and the heat generated from the control circuit is dissipated more quickly and effectively. be able to.

  According to a fourth aspect of the present invention, in the motor device according to any one of the first to third aspects, the drive control unit fixing portion is a peripheral wall formed along an outer surface of the drive control unit. And the drive control unit is fitted into the peripheral wall.

  According to this configuration, the drive control unit fitting portion can be protected by internal fitting to the peripheral wall portion. In particular, if applied to claim 3, it is effective because the opening portion having low rigidity can be protected by the inner wall portion.

  According to a fifth aspect of the present invention, in the motor device according to the fourth aspect, the peripheral wall portion extends from the drive control unit fixing portion downward in the vertical direction.

  According to this configuration, since the opening is located inside the peripheral wall, the water drops that have fallen down on the surface of the motor bracket due to the water on the motor bracket do not reach the opening of the drive control unit. It falls along the peripheral wall part extended toward the. Therefore, it is possible to prevent water from entering the drive control unit.

  According to a sixth aspect of the present invention, in the motor device according to any one of the first to fifth aspects, the motor bracket has a heat sink for heat dissipation on an external surface corresponding to the drive control unit fixing portion. It is characterized by being provided.

  According to this configuration, since the heat sink for heat dissipation is disposed on the external surface corresponding to the drive control unit fixing portion, the heat transmitted to the motor bracket can be efficiently dissipated. Therefore, the heat generated by the drive control unit and the motor can be radiated more quickly.

  According to a seventh aspect of the present invention, there is provided a motor, a motor bracket to which the motor is fixed, a drive control unit having a control circuit for driving and controlling the motor, and a pivot shaft that is rotationally driven by the motor. A wiper device for wiping the wiping surface, wherein the motor bracket is provided with a motor fixing portion and a drive control unit fixing portion in parallel, each corresponding to each fixing portion. The motor and the drive control unit are fixed.

  According to this configuration, since the drive control unit fixing portion for fixing the drive control unit is provided on the motor bracket for fixing the motor, it becomes possible to arrange the control circuit without depending on the outer shape of the motor. It can be arranged in a relatively wide range on the surface of the surface. Therefore, the drive control unit can be arranged with a relatively high degree of freedom in plan with respect to the motor bracket. In addition, the drive control unit using the motor bracket has a two-dimensional arrangement, and the drive control unit is larger than the conventional case where the control circuit is stacked in a vehicle mounted state as a wiper device while expanding the heat radiation area. The space occupied in the pivot axis direction can be reduced. As a result, an internal space for vehicle body deformation at the time of a vehicle collision is secured, so that the impact absorption effect due to vehicle body deformation is sufficiently exhibited.

The invention according to claim 8 is the wiper device according to claim 7, wherein the motor bracket is made of metal.
According to this configuration, since the motor bracket is made of metal and has high thermal conductivity, heat generated in the control circuit and the motor is quickly transmitted to the motor bracket. Therefore, it is possible to prevent heat from being accumulated in the control circuit and the motor.

  Further, the invention according to claim 9 is the wiper device according to claim 7 or 8, wherein the drive control unit includes a storage case having an opening and storing the control circuit. The storage case is fixed to the motor bracket so as to be closed by the motor bracket.

  According to this configuration, since the opening of the storage case is closed by the motor bracket, the heat generated in the drive control unit is directly transmitted to the motor bracket. Therefore, the heat generated in the control circuit is dissipated not only by the drive control unit but also from the motor bracket, so the heat dissipation area is significantly increased, and the heat generated from the control circuit is dissipated more quickly and effectively. be able to.

  The invention according to claim 10 is the wiper device according to any one of claims 7 to 9, wherein the drive control unit fixing portion is a peripheral wall formed along an outer surface of the drive control unit. And the drive control unit is fitted into the peripheral wall.

  According to this configuration, the fitting portion of the drive control unit can be protected by internal fitting to the peripheral wall portion. In particular, if applied to the ninth aspect, the opening portion having low rigidity can be protected by the inner wall portion, which is effective.

  The invention according to claim 11 is the wiper device according to claim 10, wherein the peripheral wall portion extends from the drive control unit fixing portion downward in the vertical direction.

  According to this configuration, since the opening is located inside the peripheral wall, the water drops that have fallen down on the surface of the motor bracket due to the water on the motor bracket do not reach the opening of the drive control unit. It falls along the peripheral wall part extended toward the. Therefore, it is possible to prevent water from entering the drive control unit.

  According to a twelfth aspect of the present invention, in the wiper device according to any one of the seventh to eleventh aspects, the motor bracket has a heat sink for heat dissipation on an external surface corresponding to the drive control unit fixing portion. It is characterized by being provided.

  According to this configuration, since the heat sink for heat dissipation is disposed on the external surface corresponding to the drive control unit fixing portion, the heat transmitted to the motor bracket can be efficiently dissipated. Therefore, the heat generated by the drive control unit and the motor can be radiated more quickly.

  The invention according to claim 13 is the wiper device according to claim 12, further comprising a crank arm fixed to an output shaft of the motor extending along a height direction of the heat sink, The distance from the motor bracket to the tip of the heat sink is smaller than the distance from the motor bracket to the rotational position of the crank arm.

  According to this configuration, the heat sink is formed such that the distance from the motor bracket to the tip of the heat sink is smaller than the distance from the motor bracket to the rotational position of the crank arm. The heat sink can be disposed within the rotation range of the crank arm without causing interference. Therefore, a larger heat radiation area can be secured without hindering driving of the wiper.

  The invention according to claim 14 is the wiper device according to any one of claims 7 to 13, wherein the motor bracket is formed integrally with a pivot holder that rotatably supports the pivot shaft. It is characterized by that.

  According to this configuration, since the motor bracket to which the motor is fixed and the pivot holder that supports the pivot shaft driven by the motor are integrally formed, the positional relationship between the output shaft of the motor and the pivot shaft (axis (Distance and posture) can be assembled with high accuracy. Therefore, variation in wiper wiping areas due to wiper assembly errors can be suppressed. Further, since the pivot holder and the motor bracket can be handled as one part, the number of parts and the number of assembling steps can be reduced.

  According to the present invention, it is possible to provide a motor device and a wiper device that can appropriately dissipate heat generated in the drive control unit and the motor unit.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows a wiper device 1 as a motor device of the present embodiment. The wiper device 1 is for wiping a windshield (not shown) of an automobile, and is disposed in a cowl top panel (not shown) below the windshield.

  The wiper device 1 includes a pair of pivot holders (a first pivot holder 10 and a second pivot holder 20). The first pivot holder 10 and the second pivot holder 20 are formed substantially symmetrically in the vehicle width direction (the left-right direction in the figure) and have substantially the same configuration.

  More specifically, the first pivot holder 10 and the second pivot holder 20 include support portions 11 and 21 formed in a substantially cylindrical shape, and flange portions 12 and 22 extending in a direction substantially perpendicular to the support portions 11 and 21. Are provided integrally. A first pivot shaft 13 and a second pivot shaft 23 are inserted through the support portions 11 and 21, respectively. The support portions 11 and 21 support the first pivot shaft 13 and the second pivot shaft 23 in a rotatable manner. is doing. A first pivot lever 14 and a second pivot lever 24 are fixed to lower ends of the first pivot shaft 13 and the second pivot shaft 23, respectively. The first pivot lever 14 and the second pivot lever 24 extend in directions substantially parallel to each other along the radial direction of the first pivot shaft 13 and the second pivot shaft 23, respectively. When the first pivot lever 14 and the second pivot lever 24 are reciprocally swung, the first pivot shaft 13 and the second pivot shaft 23 are reciprocally rotated.

  The first pivot holder 10 and the second pivot holder 20 are formed with fixing portions 15 and 25. The fixed portions 15 and 25 are extended from the support portions 11 and 21 to the substantially opposite side of the swing range of the first pivot lever 14 and the second pivot lever 24 along the radial direction. Attachment holes 15a and 25a are formed at the tips of the fixing portions 15 and 25, respectively. Rubber grommets 15b and 25b are attached to the attachment holes 15a and 25a, and the wiper device 1 (the first pivot holder 10 and the second pivot holder 20) is attached by attachment bolts (not shown) inserted through the rubber grommets 15b and 25b. Fixed to the car body.

  As shown in FIG. 2, a tower portion 12 a is formed integrally with the first pivot holder 10. The tower portion 12 a extends from the flange portion 12 of the first pivot holder 10 to the vehicle inward side along the axial direction of the first pivot shaft 13.

  A motor bracket portion 30 as a motor bracket for fixing the motor is formed at the front end of the tower portion 12a in the extending direction. Here, the 1st pivot holder 10, the tower part 12a, and the motor bracket part 30 consist of aluminum alloys, and are integrally formed.

  The motor bracket portion 30 is formed in a substantially flat plate shape in which the axial direction of the first pivot shaft 13 is the plate thickness direction, and is separated from the tower portion 12a in the vehicle width direction (the left-right direction in the state shown in FIG. 2). A first connecting portion 30a is formed at the position. The first connecting portion 30a is formed to project from the motor bracket portion 30 toward the second pivot holder 20 side, and one end of a substantially cylindrical frame member 40 is fitted and fixed to the tip portion thereof.

  The other end of the frame member 40 is fitted and fixed to a second connecting portion 20 a that is formed to protrude from the second pivot holder 20. That is, by connecting the first connecting portion 30a and the second connecting portion 20a by the frame member 40, the first pivot holder 10, the second pivot holder 20, and the motor bracket portion 30 are integrally configured.

  Further, as shown in FIG. 1, a positioning pin 30b is projected from a part of the motor bracket portion 30 on the vehicle rear side when the wiper device 1 is mounted on the vehicle body, and a support grommet 30c made of an elastic material is further provided. Installed. The positioning pin 30b and the support grommet 30c are positioned and fixed with respect to a vehicle body (not shown) by being fitted into a positioning hole (not shown) as a reference position on the vehicle body side.

  Further, as shown in FIG. 3, the motor bracket unit 30 includes a motor control unit 31 for fixing a wiper motor 50 as a motor, and a drive control unit to which a drive control unit 60 for driving and controlling the wiper motor 50 is fixed. And a fixing portion 32.

  The motor fixing portion 31 is provided on the vehicle rear side of the motor bracket portion 30 when the wiper device 1 is mounted on the vehicle body. The wiper motor 50 is fixed to the rear surface side of the motor fixing portion 31 (on the opposite side to the protruding side of the first pivot shaft 13, in other words, the opposite side to the side where the tower portion 12a is disposed) by the mounting bolt 31a.

  As shown in FIG. 4, the motor fixing portion 31 is provided with a through hole 31 b that penetrates the motor bracket portion 30 from the front surface 32 a toward the back surface 32 b in the plate thickness direction. Three bolt holes 31c through which the mounting bolts 31a (see FIG. 3) are inserted are formed at equal intervals around the through hole 31b, and the output shaft 50a of the wiper motor 50 is inserted into the through hole 31b. The wiper motor 50 has a configuration in which a motor unit 51 and a gear unit 52 are integrally provided, and rotation of the motor disposed in the motor unit 51 is performed via a reduction gear housed in the gear unit 52. Is transmitted to the output shaft 50a (see FIG. 2).

  As shown in FIG. 3, the drive control unit fixing portion 32 is provided on the front side of the vehicle when the wiper device 1 is mounted on the motor bracket portion 30. As shown in FIG. 4, a substantially rectangular peripheral wall portion 33 is provided on the back surface 32 b of the drive control unit fixing portion 32 (on the side opposite to the protruding side of the first pivot shaft 13). The peripheral wall portion 33 is erected substantially perpendicular to the back surface 32b of the drive control unit fixing portion 32, and extends from the drive control unit fixing portion 32 downward in the vertical direction. In addition, the vertical direction lower side includes the case where it is inclined downward with respect to the vertical direction. In addition, two engaging projections 33 a are provided on the outer surfaces of the pair of wall portions facing each other in the peripheral wall portion 33.

  A drive control unit 60 is disposed on the inner peripheral side of the peripheral wall portion 33 in the drive control unit fixing portion 32. As shown in FIG. 5, the drive control unit 60 includes an insulating resin storage case 61 formed in a substantially bottomed rectangular tube shape. The storage case 61 has an opening 61a that opens to the motor bracket portion 30 side. Further, the storage case 61 is disposed so that the opening side is enclosed by the peripheral wall portion 33 from the outer peripheral side, and the opening portion 61a is closed by the drive control unit fixing portion 32 (motor bracket portion 30). Yes. The opening 61a of the storage case 61 is provided with a seal member (not shown) that prevents entry of dust, water droplets, and the like from the outside.

  As shown in FIGS. 4 and 6, two claw portions 62 are provided on the outer surfaces of the pair of wall portions of the storage case 61 that face each other. The storage case 61 is fixed to the drive control unit fixing portion 32 by the claw portion 62 being locked to the engaging protrusion 33a.

  Further, as shown in FIG. 6, a circuit board 64 on which various circuit elements 63 constituting a control circuit are mounted is stored in the storage case 61. The circuit board 64 is separated from the bottom 61b of the storage case 61 by a step portion 65 provided inside the storage case 61, and the circuit element 63 is stored so as to be disposed on the opening 61a side, that is, on the motor bracket 30 side. Has been.

  Further, as shown in FIG. 2, a bypass line 81 is connected to the storage case 61, and is electrically connected to the wiper motor 50 via the bypass line 81. A connector 83 provided with the bypass line 81 and a connection line 82 connected to the on-vehicle battery is fixed to the wiper motor 50. The drive control unit 60 is supplied with power from the battery via the connection line 82 and the bypass line 81. The wiper motor 50 is supplied with power based on the control of the drive control unit 60 via the bypass line 81. The wiper motor 50 rotates the output shaft 50a that is inserted into the through hole 31b of the motor fixing portion 31 and protrudes toward the surface 32a.

  Further, as shown in FIG. 5, a plurality (eight in this embodiment) of heat sinks 34 are integrally provided on the surface 32 a of the drive control unit fixing portion 32. The heat sink 34 is formed in a substantially plate shape, extends along the vehicle front-rear direction, and stands upright at a substantially right angle from the drive control unit fixing portion 32. The height of the heat sink 34 (the distance from the surface 32a of the drive control unit fixing portion 32 to the tip of the heat sink 34) H is the rotational position height of the crank arm 70 described later (from the same surface 32a to the rotational position of the crank arm 70). And the crank arm 70 is rotated without interfering with the heat sink 34.

  As shown in FIGS. 1 to 3, a crank arm 70 is attached to the tip of the output shaft 50 a that protrudes from the surface 32 a of the motor bracket portion 30, and a first of the link mechanism is formed at the tip of the crank arm 70. One end of the link rod 71 is connected via a ball joint 71a. The other end of the first link rod 71 is connected to the second pivot lever 24 of the second pivot shaft 23 supported by the second pivot holder 20 via a ball joint 71b. Further, one end of a second link rod 72 constituting a link mechanism is connected to the second pivot lever 24 via a ball joint 72a (see FIG. 1). The other end of the second link rod 72 is connected to the first pivot lever 14 of the first pivot shaft 13 supported by the first pivot holder 10 via a ball joint 72b. As a result, the wiper motor 50 is actuated and the crank arm 70 is rotated, whereby the driving force is transmitted to the second pivot shaft 23 via the first link rod 71 and the second pivot lever 24, and the second pivot shaft 23 is predetermined. Rotate at an angle. Further, the driving force is transmitted to the first pivot shaft 13 through the second pivot lever 24, the second link rod 72, and the first pivot lever 14, and the first pivot shaft 13 is similarly rotated at a predetermined angle. A wiper arm and a blade (not shown) are respectively attached to the distal ends of the first pivot shaft 13 and the second pivot shaft 23, and the wiper arm and the blade reciprocate within a predetermined range by the rotation of the first pivot shaft 13 and the second pivot shaft 23. Move and wipe the wiping surface (glass surface).

As described above, the present embodiment has the following effects.
(1) Since the drive control unit fixing part 32 for fixing the drive control unit 60 is provided in the motor bracket part 30 for fixing the wiper motor 50, the circuit board 64 can be attached to the motor bracket part 30 without depending on the outer shape of the wiper motor 50. It can be arranged on the surface in a relatively wide range in a plane. Therefore, the drive control unit can be arranged with a relatively high degree of freedom in plan with respect to the motor bracket portion 30. Further, the planar arrangement of the drive control unit 60 using the motor bracket portion 30 can expand the heat dissipation area, and can appropriately dissipate heat generated in the wiper motor 50 and the circuit board 64.

  (2) Further, the planar arrangement of the drive control unit 60 using the motor bracket portion 30 increases the occupied space in the pivot axis direction of the drive control unit 60 in the vehicle mounted state of the wiper device 1 while expanding the heat radiation area. This can be reduced as compared with a conventional case where control circuits are stacked. As a result, an internal space for vehicle body deformation at the time of a vehicle collision is secured, so that the impact absorption effect due to vehicle body deformation is sufficiently exhibited.

  (3) Since the motor bracket 30 made of metal has a high thermal conductivity, heat generated by the circuit board 64 and the wiper motor 50 is quickly transmitted to the motor bracket 30. Therefore, it is possible to prevent heat from being accumulated in the circuit board 64 and the wiper motor 50.

  (4) Since the opening 61 a of the storage case 61 in the drive control unit 60 is closed by the motor bracket 30, the heat generated in the drive control unit 60 has a higher thermal conductivity than the storage case 61. Communicated directly to. Therefore, the heat generated in the circuit board 64 is not radiated from the drive control unit 60 alone but is also radiated from the motor bracket 30 (in the case of this embodiment, the heat is also radiated from the first pivot holder 10 and the tower 12a. Therefore, the heat dissipation area is significantly increased, and the heat generated from the circuit board 64 can be dissipated more quickly and effectively.

(5) Since the opening 61a of the storage case 61 is fitted into the peripheral wall 33, the opening 61a having low rigidity can be protected from the outer surface side.
(6) Since the drive control unit 60 is located on the inner side of the peripheral wall portion 33, the water droplets that have been wetted by the motor bracket portion 30 and have flowed down along the surface of the motor bracket portion 30 have an opening 61 a of the drive control unit 60. (More specifically, it falls through the peripheral wall portion extending downward in the vertical direction without reaching the opening 61a of the storage case 61). Therefore, it is possible to prevent water from entering the drive control unit 60. That is, since the opening 61a of the storage case 61 is disposed inside the peripheral wall portion 33, the circuit board 64 can be more reliably prevented from getting wet.

  (7) Since the heat sink 34 for heat dissipation is disposed on the outer surface corresponding to the drive control unit fixing portion 32, the heat transmitted to the motor bracket portion 30 can be efficiently dissipated. Therefore, the heat generated by the drive control unit 60 and the wiper motor 50 can be radiated more quickly.

  (8) Since the height H of the heat sink 34 is formed to be lower than the rotational position height H1 of the crank arm 70, the crank arm 70 is within the rotation range without causing the crank arm 70 and the heat sink 34 to interfere with each other. It is possible to dispose the heat sink 34 on the surface, and even if it is disposed in the vicinity of the output shaft 50a of the wiper motor 50, a larger heat radiation area can be secured.

  (9) Since the motor bracket portion 30 to which the wiper motor 50 is fixed and the first pivot holder 10 that supports the first pivot shaft 13 driven by the wiper motor 50 are integrally formed, the output shaft 50a of the wiper motor 50 is formed. And the first pivot shaft 13 can be assembled with high accuracy. Therefore, variations in the wiper wiping area due to these assembly errors can be suppressed. Moreover, since the 1st pivot holder 10 and a motor bracket (motor bracket part 30) can be handled as one component, a number of parts and an assembly man-hour can also be reduced.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the motor bracket portion 30 is made of an aluminum alloy. However, the motor bracket portion 30 can be changed to a material having higher thermal conductivity than the storage case 61 such as metal.

  In the above embodiment, a plurality of plate-like projections are erected at intervals as the heat sink 34, but may be a three-dimensional configuration capable of expanding the surface area in contact with the atmosphere. A protrusion or a depression may be formed. In the above-described embodiment, the heat sink 34 is integrally formed with the motor bracket portion 30. However, the heat sink 34 may be separately formed of a material having better thermal conductivity and fixed to the motor bracket portion 30. it can. According to such a configuration, since the thermal conductivity of the portion corresponding to the drive control unit fixing portion 32 is improved, the heat generated by the wiper motor 50 and the circuit board 64 can be radiated more quickly and effectively. If the heat sink 34 is disposed in the air flow path between the outside air inlet of the cowl top panel and the outside air inlet (both not shown) of the air conditioner device formed in the cowl portion, the heat dissipation effect can be further improved. .

  In the above embodiment, the first pivot holder 10 and the motor bracket portion 30 are integrally formed. However, the pivot holders 10 and 20 that support the motor bracket to which the motor is fixed and the pivot shaft that is driven by the motor. Is not limited to such an embodiment. For example, each of the pivot holders and the motor bracket may be formed separately, and the motor bracket and the pivot holder may be integrally configured by fixing the motor bracket to a frame connecting the pair of pivot holders.

  -In the said embodiment, although the wiper apparatus which wipes the windshield of a motor vehicle was applied as a motor apparatus, it is not limited to such an aspect, For example, the power window apparatus accommodated in a door panel and driving a window glass, or a roof The present invention can also be applied to a sunroof device that is housed and drives the sunroof. That is, in an apparatus accommodated in a door panel, a roof, or the like and limited in arrangement space, it is significant to apply a configuration in which the apparatus is thin in plan as in this embodiment.

  In the above embodiment, the storage case 61 has the opening 61a closed by the motor bracket 30. However, the present invention is not limited to such a configuration. For example, the storage case may be closed by a lid. Good.

  In the above embodiment, in the use state (final fixed state), that is, in the state where the wiper device is mounted on the vehicle, the peripheral wall portion 33 extends vertically downward from the drive control unit fixing portion 32. The part 33 should just be extended toward the perpendicular direction downward side. For example, it is possible to adopt a configuration in which a recess capable of accommodating the drive control unit is formed in the control unit fixing portion, and the drive control unit is disposed inside the recess. Moreover, the surrounding wall part 33 can also be abbreviate | omitted.

The top view of the wiper apparatus which concerns on this embodiment. The front view of the wiper apparatus concerning this embodiment. The perspective view which shows a part of wiper apparatus. The perspective view which shows a part of back surface side of a wiper apparatus. AA sectional drawing of FIG. BB sectional drawing of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Wiper apparatus 10, 20 ... Pivot holder, 13, 23 ... Pivot shaft, 30 ... Motor bracket part as a motor bracket, 31 ... Motor fixing part, 32 ... Drive control unit fixing part, 33 ... Peripheral wall part, 34 ... Heat sink, 50a ... output shaft, 60 ... control unit, 61 ... storage case, 61a ... opening, 70 ... crank arm, H ... distance from motor bracket to tip of heat sink, H1 ... from motor bracket to crank arm rotation position Distance.

Claims (14)

A motor device comprising a motor, a motor bracket to which the motor is fixed, and a drive control unit having a control circuit for driving and controlling the motor,
The motor bracket is characterized in that a motor fixing portion and a drive control unit fixing portion are provided side by side on the motor bracket, and the motor and the drive control unit are fixed to correspond to the fixing portions, respectively. The motor device according to claim 1, wherein the motor bracket is made of metal. The drive control unit includes a storage case having an opening and storing the control circuit, and the storage case is fixed to the motor bracket so as to close the opening with the motor bracket. The motor device according to claim 1 or 2. The said drive control unit fixing | fixed part is provided with the surrounding wall part formed along the outer surface of the said drive control unit, The said drive control unit was fitted in the said surrounding wall part. The motor device according to any one of claims. The motor device according to claim 4, wherein the peripheral wall portion is extended downward from the drive control unit fixing portion in the vertical direction. The motor device according to any one of claims 1 to 5, wherein the motor bracket is provided with a heat sink for heat dissipation on an external surface corresponding to the drive control unit fixing portion. A motor, a motor bracket to which the motor is fixed, a drive control unit having a control circuit for driving and controlling the motor, and a wiper fixed to a pivot shaft that is rotationally driven by the motor. A wiper device for wiping the surface,
The motor bracket includes a motor fixing portion and a drive control unit fixing portion arranged in parallel, and the motor and the drive control unit are fixed to correspond to the fixing portions, respectively. The wiper device according to claim 7, wherein the motor bracket is made of metal. The drive control unit includes a storage case having an opening and storing the control circuit, and the storage case is fixed to the motor bracket so as to close the opening with the motor bracket. The wiper device according to claim 7 or 8. The drive control unit fixing portion includes a peripheral wall portion formed along an outer surface of the drive control unit, and the drive control unit is fitted into the peripheral wall portion. The wiper device according to any one of the preceding claims. The wiper device according to claim 10, wherein the peripheral wall portion extends from the drive control unit fixing portion toward a lower side in the vertical direction. The wiper device according to any one of claims 7 to 11, wherein the motor bracket is provided with a heat sink for heat dissipation on an external surface corresponding to the drive control unit fixing portion. A crank arm fixed to the output shaft of the motor extending along the height direction of the heat sink;
The wiper device according to claim 12, wherein the heat sink is formed such that a distance from the motor bracket to a tip of the heat sink is smaller than a distance from the motor bracket to a rotation position of the crank arm. . The wiper device according to any one of claims 7 to 13, wherein the motor bracket is formed integrally with a pivot holder that rotatably supports the pivot shaft.

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