JP2010161860A - Motor with reduction gear - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiper motor which can readily change the orientation of a connector. <P>SOLUTION: In the wiper motor, the connector which electrically connects a control board and an external power supply is arranged directly in a housing. The connector 30 is constituted of two fixed connector parts 31A and 31B, fixed to the housing and one connector body 40 which is attachably/detachably installed on both connector parts. Fixed terminal members 33A and 33B, projected to the fitting holes 32A and 32B of the connector body 40, are disposed in the fixed connector parts 31A and 31B. Detachable terminal members 43 that can be freely engaged with the fixed terminal members 33A and 33B, and connection terminal members 44 connected to the detachable terminal members 43 are arranged in the connector body 40. By having the connector body 40 changed to the lower fixed connector part 31A and the upper fixed connector part 31B, the direction of the connector 30 can be readily changed from downward to upward. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a motor with a reduction gear, and for example, relates to a motor effectively used for a wiper motor of an automobile wiper device.

In recent automobile wiper devices, electrical connection between a wire harness that supplies power from a power source or an electrical signal from a wiper switch to a wiper motor and electrical wiring of a receiving unit such as a power demand unit on the wiper motor side or an auto stop switch As a means, a connection device that can complete a connection operation with one touch is widely used.
A wiper motor side connection portion (hereinafter referred to as a connector) in this type of conventional connection device is integrally assembled with a wiper motor housing. For example, see Patent Document 1.

JP 2006-199193 A

  However, in a wiper motor in which the connector is assembled integrally with the housing, it is necessary to redesign the housing specification in order to change the specification of the connector orientation, which greatly increases the cost. However, there is a problem that the number of models and parts increases.

  An object of the present invention is to provide a motor with a speed reducer capable of easily changing the orientation of a connector.

Typical means for solving the above-described problems are as follows.
(1) A motor with a speed reducer in which a connector for electrically connecting a control board and an external power source is provided in a housing,
The connector includes a plurality of fixed connector portions fixed to the housing;
A connector body that is detachably attached to any one of the plurality of fixed connector portions,
A motor with a speed reducer.
(2) The motor with a reduction gear according to (1), wherein each of the plurality of fixed connector portions includes an attachment hole into which the connector body can be inserted.
(3) Each of the plurality of fixed connector portions includes a fixed terminal member that is detachable from the connector body,
The connector body includes a detachable terminal member that can be fitted to the fixed terminal member, and a connection terminal member that is electrically connected to the detachable terminal member.
(1) The motor with a speed reducer according to (2).
(4) The fixed terminal member has a male shape,
The detachable terminal member is configured in a female shape,
(3) The motor with a speed reducer according to (3).
(5) The fixed terminal member has a female shape,
The desorption terminal member is configured in a male shape,
(3) The motor with a speed reducer according to (3).
(6) The connector body includes a holder that holds a female attachment / detachment terminal member, and a cover that covers the connection terminal member.
(4) The motor with a speed reducer according to (4).
(7) The connector body includes a holder that holds a male detachable terminal member, and a cover that covers the connection terminal member.
(5) The motor with a speed reducer according to (5).
(8) A cap that is attached to the opening side of the mounting hole of the plurality of fixed connector portions is provided.
The motor with a speed reducer according to any one of (1) to (7).

  According to this motor with a reduction gear, the direction of the connector can be easily changed.

It is a perspective view which shows the wiper motor which is one embodiment of this invention. It is a disassembled perspective view which shows a connector. The details of a connector are shown, (a) is an aa sectional view of Drawing 1, (b) is a bottom view of (a), and (c) is a sectional view which meets a cc line of (a). . FIG. 5 is a perspective view showing a state in which the connector body is replaced with an upper connector portion.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In the present embodiment, the motor with a reduction gear according to the present invention is configured as a wiper motor used in a rear wiper device.
As shown in FIG. 1, the wiper motor 1 includes a motor unit 10 having an electric motor 11, and a gear unit 20 having a worm gear reduction device and a crank device (not shown) as a reduction device. The motor unit 10 and the gear unit 20 are connected side by side.
The motor unit 10 includes a motor housing 12, and the gear unit 20 includes a gear housing 21. The motor housing 12 and the gear housing 21 are arranged next to each other and fastened by bolts (not shown). The motor housing 12 and the gear housing 21 constitute the housing 2 of the wiper motor 1.

The gear housing 21 includes a gear case 22 and a gear cover 23.
The gear case 22 is integrally formed into a storage container shape having one end opened by an aluminum die casting method using aluminum. A gear cover 23 is placed on the opening of the gear case 22 so as to cover the internal worm gear reduction device and the crank device, and is fastened by bolts.
As shown in FIG. 1, the gear cover 23 is formed into a flat plate shape that is substantially T-shaped in a plan view by press working using an iron plate. The mounting holes 24, 25, and 26 are opened at three tip portions of the gear cover 23. Although not shown, mount rubbers for absorbing vibration are attached to the attachment holes 24, 25, and 26, respectively.
Note that one end portion of the wiper shaft 27 penetrates the blocking wall of the gear case 22 and protrudes to the outside, and the protruding end portion of the wiper shaft 27 fixedly supports the base end portion of the wiper arm (not shown). It is configured as follows. A wiper blade for wiping the rear windshield glass is attached to the free end of the wiper arm.

  A board case 28 containing a wiring board and a control board (not shown) is disposed on the gear case 22 and fixed on a substantially extended line of the electric motor 11. The substrate case 28 is made of an insulating resin and is molded into a box shape that can accommodate a wiring board and a control board. Since the substrate case 28 is fixed to the gear case 22, it constitutes a part of the housing 2 of the wiper motor 1.

  A connector 30 is directly attached to the substrate case 28 which is a part of the housing 2 of the wiper motor 1. The connector 30 includes two fixed connector portions 31A and 31B fixed to the board case 28, and one connector body 40 that is detachably attached to the two fixed connector portions 31A and 31B.

In the present embodiment, one fixed connector portion 31 </ b> A is disposed on the main surface (hereinafter referred to as a lower surface) opposite to the wiper shaft 27 of the substrate case 28, and the other fixed connector portion 31 </ b> B is disposed on the upper surface of the substrate case 28. Has been placed. Both the fixed connector portions 31A, 31B are provided with substantially square mounting holes 32A, 32B, and both the mounting holes 32A, 32B are respectively recessed in the lower surface and the upper surface of the substrate case 28.
As shown in FIG. 3, one fixed connector portion (hereinafter referred to as a lower fixed connector portion) 31 </ b> A includes a plurality of fixed terminal members 33 </ b> A (four in this embodiment). Each fixed terminal member 33A is formed in a male terminal shape, that is, a rectangular flat plate shape by using a conductive leaf spring material. One end (lower end) of each fixed terminal member 33A is disposed so as to extend in the vertical direction and protrudes into the mounting hole 32A. The protruding end of each fixed terminal member 33A is aligned. One end of a lead 34 is integrally connected to each fixed terminal member 33A in a perpendicular direction, and the other end of the lead 34 is electrically connected to an electrical wiring (not shown) laid on a wiring board or a control board. It is connected.

Similarly, the other fixed connector portion (hereinafter referred to as the upper fixed connector portion) 31B includes a plurality of fixed terminal members 33B (four in this embodiment). Each fixed terminal member 33B is made of a conductive leaf spring material and is formed into a male terminal shape, that is, a rectangular flat plate shape. One end (upper end) of each fixed terminal member 33B is disposed so as to extend in the vertical direction, and protrudes into the mounting hole 32B. The protruding ends of the fixed terminal members 33B are aligned. One end of a lead 34 is integrally connected to each fixed terminal member 33B in a perpendicular direction, and the other end of the lead 34 is electrically connected to an electrical wiring (not shown) laid on a wiring board or a control board. It is connected.
The other end (lower end) of each fixed terminal member 33B is integrally connected to the upper end of each fixed terminal member 33A. Therefore, the fixed terminal members 33A and 33B and the lead 34 can be integrally pressed.
In FIG. 1, a connector body 40 is attached to the lower fixed connector portion 31A, and a cap 35 is attached to the mounting hole 32B of the upper fixed connector portion 31B.
The cap 35 is provided on the opening side of the mounting hole 32B in order to prevent entry of dust or water into the mounting hole 32B of the fixed connector portion 31B.

The connector body 40 includes a holder 41. The holder 41 is made of an insulating resin and is molded into a substantially rectangular parallelepiped shape corresponding to the mounting holes 32A and 32B.
At the lower end of the holder 41, a rectangular cylindrical fitting portion 42 is coaxially disposed and protruded integrally. As shown by an imaginary line in FIG. 3, the fitting portion 42 is configured to be detachably fitted into the cover 51 of the mating connector 50.
Here, the mating connector is a connector installed at one end of a wire harness that supplies electric power from an external power source on the vehicle side or an electric signal from a wiper switch to a wiper motor. An electrical connection means for electrically connecting power from a power source and an electrical signal from a wiper switch to a power demand section of a wiper motor, a receiving section such as an auto stop switch, and a connection device that can complete a connection operation with one touch Configure.

  The connector body 40 includes a plurality (four in this embodiment) of detachable terminal members 43 that can be fitted to the fixed terminal member 33A. Each detachable terminal member 43 uses a leaf spring material having conductivity, and is formed into a female terminal shape, that is, a rectangular rectangular tube shape. That is, the four detachable terminal members 43 are fixedly held so as to extend in the vertical direction at positions corresponding to the four fixed terminal members 33A, and the male fixed terminal member 33A is fitted. It is formed in a female shape that can be freely combined.

The connector body 40 includes four connection terminal members 44 that are electrically connected to four attachment / detachment terminal members 43, respectively. Each connection terminal member 44 is integrally connected to each detachable terminal member 43. Therefore, each connection terminal member 44 and each detachable terminal member 43 can be integrally formed by pressing.
Each connection terminal member 44 is formed in a male terminal shape, that is, a rectangular flat plate shape, and each connection terminal member 44 protrudes into the fitting portion 42. Therefore, the fitting portion 42 constitutes a cover that covers the four connection terminal members 44.
As indicated by imaginary lines in FIG. 3, each connection terminal member 44 is configured to correspond to the female terminal member 52 of the female terminal shape of the mating connector 50.

In the wiper motor configured as described above, as shown in FIGS. 1 and 4, the connector body 40 is replaced with the lower fixed connector portion 31 </ b> A and the upper fixed connector portion 31 </ b> B, so that the orientation of the connector 30 is changed. Can be easily changed from downward (see FIG. 1) to upward (see FIG. 4).
For example, when the orientation of the connector 30 is downward as shown in FIG. 1, the connector 30 faces the vehicle interior side, so that the connection workability of the mating connector 50 is good, but the connector 30 faces the vehicle interior side. Since it protrudes, there is a risk of restricting the layout of the passenger compartment.
Therefore, when priority is given to the vehicle interior layout, the connector body 40 can be easily changed by changing the lower fixed connector portion 31A to the upper fixed connector portion 31B.

  Needless to say, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  The connector is not limited to being disposed on the board case, but may be disposed on another portion of the wiper motor housing such as a gear housing or a motor housing.

  The fixed terminal member, the detachable terminal member, and the connection terminal member are not limited to four, but may be one to three or five or more.

The fixed connector portion is not limited to two places, and may be provided in three or more places.
Further, the direction of the fixed connector portion is not limited to the vertical direction, but may be set to the front-rear direction, to the left-right direction, or to use these directions together.

  The fitting part as a cover may be omitted.

  In the above-described embodiment, the cap is attached to one upper fixed connector portion. However, the present invention is not limited to this, and the connector body is attached to a plurality of fixed connector portions. The cap is attached to the mounting holes excluding the fixed connector portion.

  In the said embodiment, although the connection terminal member demonstrated what was comprised by the male form, this invention is not restricted to this, It is good also as a female form.

  In the above-described embodiment, the wiper motor for the rear wiper device has been described. However, the present invention is not limited to this, and is applicable to a front wiper device, and further to a motor with a reduction gear used for a power window device, a power seat device, and the like. can do.

1 ... wiper motor, 2 ... wiper motor housing,
DESCRIPTION OF SYMBOLS 10 ... Motor part, 11 ... Electric motor, 12 ... Motor housing,
DESCRIPTION OF SYMBOLS 20 ... Gear part, 21 ... Gear housing, 22 ... Gear case, 23 ... Gear cover, 24 ... 24, 25, 26 ... Mounting hole, 27 ... Wiper shaft, 28 ... Substrate case,
30 ... Connector, 31A, 31B ... Fixed connector part, 32A, 32B ... Mounting hole, 33A, 33B ... Fixed terminal member, 34 ... Lead, 35 ... Cap,
DESCRIPTION OF SYMBOLS 40 ... Connector body, 41 ... Holder, 42 ... Fitting part (cover), 43 ... Detachable terminal member, 44 ... Connection terminal member,
50 ... mating connector, 51 ... cover, 52 ... female terminal member.

Claims (8)

A motor with a speed reducer provided in a housing with a connector for electrically connecting a control board and an external power source,
The connector includes a plurality of fixed connector portions fixed to the housing;
A connector body that is detachably attached to any one of the plurality of fixed connector portions,
A motor with a speed reducer.   2. The motor with a reduction gear according to claim 1, wherein each of the plurality of fixed connector portions includes a mounting hole into which the connector body can be fitted. The plurality of fixed connector portions each include a fixed terminal member that is detachable from the connector body,
The connector body includes a detachable terminal member that can be fitted to the fixed terminal member, and a connection terminal member that is electrically connected to the detachable terminal member.
The motor with a speed reducer according to claim 1 or 2. The fixed terminal member is configured in a male shape,
The detachable terminal member is configured in a female shape,
The motor with a speed reducer according to claim 3. The fixed terminal member is configured in a female shape,
The detachable terminal member is configured in a male shape,
The motor with a speed reducer according to claim 3. The connector body includes a holder for holding a female attachment / detachment terminal member, and a cover for covering the connection terminal member.
The motor with a speed reducer according to claim 4. The connector body includes a holder that holds a male removable terminal member, and a cover that covers the connection terminal member.
The motor with a speed reducer according to claim 5. A cap that is attached to the opening side of the mounting hole of the plurality of fixed connector portions;
The motor with a reduction gear according to any one of claims 1 to 7.

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