JP2003230245A - Motor for power window - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor for a power window which can materialize cost reduction by restraining the thickness of a gear housing from becoming thick, and making a manufacture facility small, with its parts No. one. <P>SOLUTION: The motor 1 for a power window is equipped with a motor body 2 where an armature 6 is stored in a yoke housing 4, and a reduction gear 3 where worm gears 8 and 9 are stored in a gear housing 7 fixed to the yoke housing 4, and this opens and closes a door window for a vehicle by being attached to a vehicle's door and rotating the output shaft 9a of the reduction gear 3. A connector member 10, which is mounted on the gear housing 7 and is used for connecting an outer connector, is provided with a breath port 12g whose one side leads to the interior of the gear housing 7 and whose other side opens in a direction parallel with the output shaft 9a, and a waterproof sheet 15 is arranged at the end outside the breath port 12g. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window motor provided in a power window device.

[0002]

2. Description of the Related Art Conventionally, a power window device has a power window motor attached to a vehicle door. The power window motor includes a motor body in which an armature (rotor) is housed in a yoke housing, and a speed reducer in which a worm gear is housed in a gear housing fixed to the yoke housing. The power window motor is fixed to the vehicle door (inner panel or the like) so that the output shaft projecting from the speed reducing portion is connected to, for example, an X-arm type regulator mechanism provided in the vehicle door. It Therefore, when the output shaft is rotationally driven based on the rotation of the armature, the vehicle door window is opened / closed via the regulator mechanism.

By the way, in such a power window motor, the inside and the outside are communicated with each other in order to eliminate the change in the atmospheric pressure inside (the space surrounded by the yoke housing and the gear housing) due to the heat generation during driving. A ventilation path is provided. And as a structure that constitutes the ventilation path,
There is a gear housing in which a communication hole that communicates the inside and the outside is formed, and a pipe member (ventilation member) made of a bent resin material is connected and fixed to the outer end of the communication hole.
The power window motor is fixed to the vehicle door such that the tip end portion (end portion on the outer side) of the pipe member faces the ground direction. Therefore, in the motor for power window,
Even if liquid (rainwater, etc.) that has entered through the gaps where the vehicle door window of the vehicle door appears and disappears, liquid is prevented from entering the inside of the motor, and there is no change in the internal atmospheric pressure. You can

[0004]

However, in the above power window device (power window motor), it is necessary that the tip end portion (external end portion) of the pipe member fixed to the gear housing faces the ground direction. Therefore, when the mounting angle with the output shaft of the power window motor as an axis is changed, it is necessary to change the mounting direction of the pipe member, that is, the direction (angle) of the tip portion. Therefore, there is a problem in that the product number of the motor for the power window becomes plural, and eventually the cost becomes high. There is also a problem that the thickness (width in the output shaft direction) of the gear housing is increased because the pipe member projects and bends outside the gear housing. This makes it difficult to attach the power window motor to the vehicle door having a limited installation space.

Therefore, it is conceivable to dispose a waterproof sheet in the communication hole of the gear housing instead of the pipe member. In order to convey the gear housing in the mounting step, for example, in the step of heat-sealing the waterproof sheet. There is a problem that the manufacturing equipment becomes large, such as the large equipment, and the cost becomes high.

The present invention has been made in order to solve the above problems, and an object thereof is to suppress an increase in the thickness of a gear housing and reduce the manufacturing equipment while keeping the product number as one. Therefore, it is to provide a motor for a power window capable of achieving cost reduction.

[0007]

In order to achieve the above object, the invention according to claim 1 is a motor main body having a rotor housed in a yoke housing, and a gear housing fixed to the yoke housing. A power window motor that opens and closes a vehicle door window by rotating the output shaft of the speed reducer, which is attached to the gear housing. The connector member for connecting the external connector is provided with a breathing hole, one of which communicates with the inside of the gear housing and the other of which opens in a direction parallel to the output shaft, and a waterproof sheet is provided outside the breathing hole. Arranged.

According to a second aspect of the present invention, in the power window motor according to the first aspect, the connector member has a connection recess formed on a side connected to the external connector, the connection recess being connected to the external connector. And a terminal that is exposed from the bottom of the coupling recess while being extended from the gear housing side is retained, and an external end of the breathing hole is
It is provided on the gear housing side from the bottom of the connection recess.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the power window motor described in (1), the waterproof sheet is arranged at an outer end of the breathing hole. Claim 4
In the power window motor according to the third aspect of the present invention, the outer end of the breathing hole is a tip end of a tubular portion that is tubularly projected from the connector member.

The invention according to claim 5 is the invention according to claim 1 or 2.
In the power window motor according to claim 1, a fitting portion is formed on the outside of the breathing hole, the waterproof sheet is fixed to a fixing member that can be fitted to the fitting portion, and the fixing member is It was arranged on the outside of the breathing hole by being fitted into the fitting portion.

According to a sixth aspect of the present invention, in the power window motor according to the fifth aspect, the fitting portion constitutes an inner wall of the breathing hole, and the fixing member is the fitting member. It is formed so that it can be internally fitted to the wearing part, and the outer end thereof is arranged deeper than the outer end of the breathing hole in a state of being fitted internally.

The invention according to claim 7 is the invention according to claim 5 or 6.
In the power window motor described in the paragraph (1), the fitting portion constitutes an inner wall of the breathing hole, and the fixing member is made of a substantially tubular elastic member which can be fitted inside the fitting portion. .

(Operation) According to the invention described in claim 1,
The connector member mounted on the gear housing for connecting the external connector is provided with a breathing hole, one of which communicates with the inside of the gear housing and the other of which opens in a direction parallel to the output shaft. Is provided with a waterproof sheet. With this configuration, the output shaft is arranged with respect to the vehicle door so as to extend in the horizontal direction. Therefore, the opening direction of the breathing hole is horizontal regardless of the mounting angle about the output shaft of the power window motor. And the tarpaulin is installed so that it is perpendicular to the ground. Therefore, even if liquid (rainwater, etc.) enters through a gap or the like where the vehicle door window of the vehicle door appears and disappears and the liquid falls on the power window motor, the liquid may enter the power window motor. Is prevented by the waterproof sheet, and the internal atmospheric pressure is prevented from changing. Moreover, the width (thickness) in the output shaft direction of the gear housing can be made smaller than in the case where a pipe member whose tip portion is bent outside the gear housing is provided so as to face the ground direction. Moreover, since the waterproof sheet is arranged on the connector member smaller than the gear housing, the mounting process can be performed with a smaller facility than that for disposing the waterproof sheet on the gear housing.

According to the second aspect of the present invention, since the outer end of the breathing hole is provided closer to the gear housing than the bottom of the connecting recess, in other words, it is closer to the gear housing than the exposed portion of the terminal. Therefore, even if the liquid enters the breathing hole, the liquid is prevented from coming into contact with the exposed part of the terminal.

According to the third aspect of the present invention, when the waterproof sheet is arranged on the inner side of the outer end of the breathing hole, the liquid film stays at the outer end (opening) of the breathing hole. Therefore, it is necessary to make the size of the opening of the breathing hole equal to or larger than a predetermined size (size at which the membrane does not stay). Since the liquid film does not stay at the outer end (opening) and the ventilation is blocked, the size of the opening can be reduced. Therefore, the waterproof sheet can be made smaller and the cost can be reduced. Further, the waterproof sheet can be easily arranged.

According to the fourth aspect of the invention, since the outer end of the breathing hole is the tip of the tubular portion projecting from the connector member in a tubular shape, only the outer end is heated. And the like, and the waterproof sheet can be more easily fixed by a process such as heat welding.

According to the fifth aspect of the present invention, the waterproof sheet is fixed to the fixing member, and the fixing member is fitted to the fitting portion so as to be disposed on the outside of the breathing hole. In this case, unlike the case where the waterproof sheet is directly fixed to the connector member by heat welding or the like, the waterproof sheet fixing operation (heat welding or the like) is performed regardless of the connector member. As a result, even if a fixing defect occurs at the time of fixing due to heat welding or the like, the connector member that is irrelevant to the connector member and is more expensive than the fixing member does not become defective. Further, since the fixing work (heat welding etc.) of the waterproof sheet is performed on the fixing member smaller than the connector member, the fixing step can be performed by a smaller facility than fixing the waterproof sheet on the connector member. Further, since the fitting portion is formed on the outer side of the breathing hole and the fixing member can be fitted to the fitting portion, it is easy to assemble the waterproof sheet to the connector member. Become.

According to the sixth aspect of the present invention, the fitting portion constitutes an inner wall of the breathing hole, and the fixing member is formed so as to be capable of being fitted inside the fitting portion, and the fitting portion is internally fitted. In this state, the outer end of the breathing hole is located deeper than the outer end of the breathing hole. Therefore, it becomes difficult for the fixing member having an annular shape smaller than the opening of the breathing hole to be exposed to water. This prevents the liquid film from being formed on the fixing member.

According to the invention of claim 7, the fitting portion constitutes an inner wall of the breathing hole, and the fixing member is made of a substantially cylindrical elastic member which can be fitted in the fitting portion. Therefore, it can be easily assembled by press-fitting into the fitting portion and internally fitting, and the waterproof property between the outer periphery of itself and the inner wall of the breathing hole can be secured.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. The power window device includes a power window motor 1 attached to an inner panel provided on a vehicle door (not shown).

As shown in FIG. 1, the power window motor 1 is provided with a motor body 2 and a speed reducer 3. The motor body 2 includes a yoke housing 4 formed in a substantially bottomed cylindrical shape, a magnet 5 fixed to an inner surface of the yoke housing 4, and an armature (rotationally supported and accommodated in the yoke housing 4). Child) 6 and. The reduction gear unit 3 is made of a resin material and is fixed to the opening of the yoke housing 4 with a gear housing 7 and an armature 6.
A worm shaft 8 rotatably supported in the gear housing 7 coaxially connected with the worm wheel 9 and a worm wheel 9 rotatably supported in the gear housing 7 so as to mesh with the worm of the worm shaft 8. There is. The worm wheel 9 has an output shaft 9a protruding outwardly in the direction of the rotation axis thereof (direction orthogonal to the paper surface of FIG. 1) and having a gear formed on the outer periphery thereof.
Are connected. And, the gear of the output shaft 9a is
It meshes with a gear of a regulator (not shown) provided on the vehicle door (inner panel). At this time, the output shaft 9
a is arranged so as to extend in the horizontal direction (the direction vertical to the gravity and parallel to the ground).

On the side of the gear housing 7 opposite to the side on which the worm wheel 9 is arranged (lower side in FIG. 1), the inside and outside of the gear housing 7 communicate with each other, and a mounting member for mounting the connector member 10 thereon. The portion 7a is formed. A connector member 10 for connecting an external connector (not shown) is mounted on the mounting portion 7a.

More specifically, as shown in FIGS. 2 and 3, the connector member 10 includes a main body 12, a substrate 13, and a plurality of (three in the present embodiment) terminals 14.
The main body 12 is made of a resin material, has a shape corresponding to the mounting portion 7a as shown in FIG. 1, and has a substantially triangular shape when viewed from the output axis direction (see FIGS. 1 and 2). A portion 12a, a fitting insertion portion 12b protruding from the central portion 12a and capable of being inserted into the mounting portion 7a, a connecting portion 12c protruding from the central portion 12a in a direction substantially opposite to the fitting insertion portion 12b, and a central portion 12a. The connecting portion 12c is provided with a fixing portion 12d protruding in a substantially orthogonal direction. A connection recess 1 into which a connection part of an external connector (not shown) is fitted and connected to the connection part 12c.
2e is formed.

The board 13 is mounted with various electronic parts such as a Hall IC, and is fixed so as to project from the fitting insertion portion 12b so as to be disposed inside the gear housing 7 from the mounting portion 7a. ing.

The plurality of terminals 14 are held by the main body 12 so as to extend from the fitting insertion portion 12b side and project and be exposed from the bottom portion 12f of the coupling recess 12e. In the main body 12 of the connector member 10, in the state where the connector member 10 is mounted on the gear housing 7, one of the fitting insertion portions 12 is designed to communicate with the inside of the gear housing 7.
Breathing hole 12 opened on the b side and the other opened in a direction parallel to the output shaft 9a (opposite to the projecting direction of the output shaft 9a).
g is formed. The outer end (the other end) of the breathing hole 12g is disposed closer to the fitting portion 12b (the gear housing 7 side) than the bottom 12f (see FIG. 2) of the connecting recess 12e. Further, as shown in FIG. 3, the outer end (the other end) of the breathing hole 12g is a distal end of a tubular portion 12h that projects from the connector member 10 in a tubular shape. The amount of protrusion of the cylindrical portion 12h is set to be the same as the maximum amount of protrusion of the other portion of the gear housing 7 when the connector member 10 is fixed to the gear housing 7.

A waterproof sheet (illustrated in a mesh pattern in FIGS. 1 and 2) 1 is provided on the outside of the breathing hole 12g.
5 are provided. Specifically, the waterproof sheet 15 allows passage of gas and does not permit passage of liquid, and is a sheet made of polytetrafluoroethylene (PTFE) in the present embodiment. Tarpaulin 15
Is disposed at the outer end of the breathing hole 12g (the tip of the cylindrical portion 12h in the present embodiment). Also, waterproof sheet 1
5 is fixed by heat welding.

The connector member 10 constructed as described above.
Is inserted into the mounting portion 7a (gear housing 7) through the fitting portion 12b and the base plate 13 and is screwed into the gear housing 7 by passing through the fixing portion 12d and screwed into the gear housing 7. It is fixed in contrast. At this time, a seal member 17 (see FIGS. 2 and 3) made of a rubber material is disposed outside the fitting portion 12b of the present embodiment to seal between the connector member 10 and the gear housing 7. It At this time, the breathing hole 12g communicates with the inside of the gear housing 7. Also, at this time, the fitting insertion portion 12b
A part of the terminal 14 projecting to the side (inside the gear housing 7) is connected to a terminal arranged inside the gear housing 7 (a terminal connected to an internal power supply brush).

In the power window device configured as described above, even if liquid (rainwater or the like) enters through a gap or the like of the vehicle door where the vehicle door window appears and disappears, and the liquid falls on the power window motor 1. The liquid is prevented from entering the inside of the motor 1 and the internal atmospheric pressure is prevented from changing.

Next, the characteristic effects of the above embodiment will be described below. (1) One of the connector members 10 has the gear housing 7
Is provided with a breathing hole 12g which communicates with the inside of the above and opens in the direction parallel to the output shaft 9a, and a waterproof sheet 15 is provided in the breathing hole 12g. Further, since the output shaft 9a is arranged so as to extend in the horizontal direction, the opening direction of the breathing hole 12g becomes the horizontal direction regardless of the mounting angle with the output shaft 9a of the power window motor 1 as the axis, and the waterproofing is achieved. The seat 15 is provided so as to be perpendicular to the ground. Therefore, it is not necessary to have a product number for each mounting angle, and even if liquid (rainwater or the like) enters through a gap or the like where the vehicle door window of the vehicle door appears or disappears, and the liquid falls on the power window motor 1, the liquid remains The waterproof sheet 15 prevents the power window motor 1 from entering the inside, and prevents the internal air pressure from changing. Further, at this time, since the waterproof sheet 15 is perpendicular to the ground, the liquid is prevented from staying on the waterproof sheet 15. Moreover, as compared with the case where a pipe member whose tip portion is bent outside is provided outside the gear housing, the gear housing 7
It is possible to reduce the width (thickness) in the output shaft direction.
Moreover, since the waterproof sheet 15 is provided for the connector member 10 which is smaller than the gear housing 7, the attaching process can be performed by a smaller facility than that for providing the waterproof sheet 15 on the gear housing 7. . As a result, the cost of the power window motor 1 can be reduced.

(2) The outer end of the breathing hole 12g is fitted into the fitting portion 1 from the bottom 12f (see FIG. 2) of the connecting recess 12e.
It is arranged on the 2b side (gear housing 7 side). In other words, since the outer end of the breathing hole 12g is provided closer to the gear housing 7 than the exposed portion of the terminal 14,
Even if the liquid enters the breathing hole 12g, the liquid is prevented from coming into contact with the exposed portion of the terminal 14. Therefore, it is possible to prevent malfunction due to a short circuit of the terminal 14 due to the liquid.

(3) The waterproof sheet 15 is arranged at the outer end of the breathing hole 12g. Here, the waterproof sheet 15
Is disposed on the inner side of the breathing hole 12g from the outer end,
Since the liquid film may stay at the outer end (opening) of the breathing hole 12g and block ventilation, the size of the opening of the breathing hole 12g is set to a predetermined value (a size where the film does not stay). The above needs to be done. On the other hand, the waterproof sheet 15
Is disposed at the outer side end of the breathing hole 12g, the liquid film does not stay at the outer side end (opening), and there is no risk of blocking ventilation. Can be smaller than the predetermined size. Therefore, the breathing hole 12 is formed in the connector member 10 having a limited space to be formed.
The g (cylindrical portion 12h) can be easily formed. or,
When the size of the opening is small, the waterproof sheet 15 can be made small, and the material cost of the waterproof sheet 15 can be reduced. Further, the waterproof sheet 15 can be provided more easily than the inside of the breathing hole 12g.

(4) The outside end of the breathing hole 12g is shown in FIG.
As shown in FIG. 3, since it is the tip of the tubular portion 12h that projects from the connector member 10 in a tubular shape, it becomes easy to heat only the external end, and the waterproof sheet 15 can be processed by heat welding or the like. Can be easily fixed.

(5) The protruding amount of the cylindrical portion 12h is set to be the same as the protruding amount of the maximum protruding portion of the other portion of the gear housing 7 when the connector member 10 is fixed to the gear housing 7. . Therefore, the cylindrical portion 12h does not increase the width (thickness) of the gear housing 7 in the output shaft direction.

(6) Since the waterproof sheet 15 is fixed by heat welding, it can be easily fixed, and the waterproof sheet 15 becomes difficult to be detached. (7) The seal member 17 (see FIG.
(See FIG. 3) and the seal member 17 seals the space between the connector member 10 and the gear housing 7, so that the liquid is prevented from entering from the space between the connector member 10 and the gear housing 7. .

The above embodiment may be modified and implemented as follows. In the above embodiment, the waterproof sheet 15 is used as the breathing hole 12
Although it was directly fixed to the outer side end portion of g (the tip portion of the cylindrical portion 12h), a fitting portion is formed on the outer side of the breathing hole, and
The fixing member may be fixed to a fixing member that can be fitted in the fitting portion, and the fixing member may be arranged by being fitted in the fitting portion.

For example, the connector member 1 of the above embodiment
0 may be changed to the connector member 21 shown in FIG.
It should be noted that the main body 22 of the connector member 21 shown in FIG. 4 is different from the main body 12 of the above-described embodiment only in the inside of the tubular portion 12h and the outside of the breathing hole 12g. , The same reference numerals are given and detailed description thereof is omitted.

A fitting portion 22a is formed on the outside of the breathing hole 12g (inside the cylindrical portion 12h). The fitting portion 22a constitutes the inner wall of the breathing hole 12g, and the step portion 22b is formed by reducing the diameter on the inner side thereof.
Are formed.

Waterproof sheet 23 (shown by a thick line in FIG. 4)
Is fixed to a fixing member 24 that can be fitted to the fitting portion 22a, and the fixing member 24 is fitted to the fitting portion 22a so that it is disposed outside the breathing hole 12g. Specifically, the fixing member 24 is made of a substantially tubular elastic member (rubber material in this example) that can be fitted into the fitting portion 22a. A lip portion 24a is formed on the outer periphery of the fixing member 24 so as to protrude outward in the radial direction (having a diameter larger than the inner diameter of the fitting portion 22a when not fitted inside). In this example, a plurality of lip portions 24a (three places) are formed in the axial direction of the fixing member 24. Further, on the inner periphery of the fixing member 24, a fixed step portion 24b is formed on the one end side in the axial direction (left side in FIG. 4) by reducing the inner diameter. The waterproof sheet 23 is inserted into the fixing member 24 from the other axial side (right side in FIG. 4), and the waterproof sheet 23 is fixed to the fixed step portion 24b. The waterproof sheet 23 is fixed to the fixed step portion 24b by heat welding. Then, the fixing member 24 is press-fitted and fitted into the fitting portion 22a until one end side in the axial direction contacts the step portion 22b. In this state, in the fixing member 24, the other end portion in the axial direction (the right end portion in FIG. 4, which is the outer end portion) is the outer end portion of the breathing hole 12g, that is, the tip end portion of the cylindrical portion 12h. It is set to be placed deeper.

Even in this case, the same effects as the effects (1), (2), (5) to (7) of the above embodiment can be obtained. Further, the waterproof sheet 23 is fixed to the fixing member 24, and the fixing member 24 is fitted to the fitting portion 22a to be disposed outside the breathing hole 12g. By doing so, unlike the case where the waterproof sheet 23 is directly fixed to the connector member by heat welding or the like, the connector member 21
The fixing work (heat welding or the like) of the waterproof sheet 23 is performed regardless of the (main body 22). As a result, even if a fixing failure occurs at the time of fixing due to heat welding or the like, the connector member 21 (main body 22), which is more expensive than the fixing member 24 and the like, is defective regardless of the connector member 21 (main body 22). Never. This reduces the cost of bad losses.

Further, since the fixing work (heat welding or the like) of the waterproof sheet 23 is performed on the fixing member 24 which is smaller than the connector member 21 (main body 22), the fixing process (heat welding process).
Can be performed with smaller equipment than fixing the waterproof sheet 23 to the connector member 21 (main body 22). Further, since the fitting portion 22a is formed on the outside of the breathing hole 12g, and the fixing member 24 can be fitted to the fitting portion 22a,
Waterproof sheet 23 for connector member 21 (main body 22)
It becomes easy to assemble when disposing.

Further, the fitting portion 22a constitutes the inner wall of the breathing hole 12g, and the fixing member 24 has its outer side end portion in the fitted state from the outer side end portion of the breathing hole 12g. Since it is arranged at the back, the fixing member 24, which has an annular shape smaller than the opening of the breathing hole 12g, is less likely to be exposed to water. This prevents the liquid film from being formed on the fixing member 24.

Further, since the fixing member 24 is made of a substantially cylindrical elastic member which can be fitted in the fitting portion 22a, the fitting portion 22a is formed.
It can be easily assembled by press-fitting it into and fitting it inside, and the waterproof property between the outer periphery of itself and the inner wall of the breathing hole 12g can be secured.

Further, the step portion 22b is formed on the fitting portion 22a, and the fixing member 24 is positioned in the press-fitting direction when the fixing member 24 abuts on the fitting portion 22a. Can be assembled. or,
Since the lip portion 24a protruding outward in the radial direction is formed on the outer periphery of the fixing member 24, the assembling of the fixing member 24 becomes easier, and the waterproof between the outer periphery of itself and the inner wall of the breathing hole 12g. Sex is secured.

In the above embodiment, the outer end of the breathing hole 12g is arranged closer to the fitting portion 12b side (gear housing 7 side) than the bottom portion 12f (see FIG. 2) of the connecting recess 12e. However, if the inside of the breathing hole 12g and the exposed portion of the terminal 14 are reliably partitioned by a wall or the like, the shape may be changed to another shape. Even in this case, the same effect as that of the above-described embodiment can be obtained.

In the above embodiment, the waterproof sheet 15
Although the above description is provided at the outer end (opening) of the breathing hole 12g, the waterproof sheet may be provided more inside than the outer end of the breathing hole 12g. Even in this case, the same effects as the effects (1), (2), and (7) of the above-described embodiment can be obtained.

In the above embodiment, the outer end of the breathing hole 12g has the connector member 10 as shown in FIG.
Although it is assumed that the distal end portion of the cylindrical portion 12h protrudes in a cylindrical shape from the cylindrical portion 12h, the cylindrical portion 12h may not be formed. Even in this case, the same effects as the effects (1) to (3) and (7) of the above embodiment can be obtained.

In the above embodiment, the protruding amount of the cylindrical portion 12h is the same as the protruding amount of the maximum protruding portion of the other portion of the gear housing 7 when the connector member 10 is fixed to the gear housing 7. Although it has been set, the gear housing 7 may be changed within a range that is equal to or less than the maximum projecting amount of the other projecting portion. Even in this case, the same effect as that of the above-described embodiment can be obtained.

In the above embodiment, the waterproof sheet 15,
Although (23) is fixed by heat welding, it may be fixed by another method. For example, as shown in FIG.
(Indicated by a thick line in the figure) may be fixed to the outside of the breathing hole 12g (the tip of the cylindrical portion 12i) by heat staking. or,
For example, as shown in FIG. 6, the waterproof sheet 41 (indicated by a thick line in the drawing) may be fixed to the outside of the breathing hole 12g (the tip of the tubular portion 12j) with an adhesive. Even in this case, the same effects as the effects (1) to (5) and (7) of the above embodiment can be obtained. Also, the waterproof sheets 31, 4
1 can be easily fixed, and the waterproof sheets 31 and 41 are less likely to come off.

In the above embodiment, the seal member 17 (see FIGS. 2 and 3) is arranged outside the fitting portion 12b, and the seal member 17 is provided between the connector member 10 and the gear housing 7. Although it is supposed to be sealed, it may be changed to another structure as long as it is possible to prevent the infiltration of the liquid into the inside. For example, a seal member other than a rubber material may be used, or the gear housing and the connector member may be changed to a shape that does not require a seal member. Even in this case, the same effects as the effects (1) to (6) of the above embodiment can be obtained.

In the above-mentioned embodiment, the breathing hole 12g is opened in the direction opposite to the protruding direction of the output shaft 9a, but it may be opened in the protruding direction of the output shaft 9a. Further, the tubular portion 12h may also be projected in the projecting direction of the output shaft 9a according to the breathing hole. Even in this case, the same effect as that of the above-described embodiment can be obtained.

In the above embodiment, the waterproof sheet 15,
23, 31, 41 are polytetrafluoroethylene (PT
Although the sheet is made of FE), it may be made of another material as long as it allows passage of gas and does not permit passage of liquid. Even in this case, the same effect as that of the above-described embodiment can be obtained.

The technical ideas that can be understood from the above-described embodiment will be described below along with their effects. (A) In the power window motor according to claim 1, the connector member holds a terminal that extends from the gear housing side and protrudes to the outside and is exposed.
A motor for a power window, wherein the inside of the breathing hole and the exposed portion of the terminal are partitioned. By doing this, since the inside of the breathing hole and the exposed part of the terminal are partitioned, even if liquid enters the breathing hole,
The liquid is prevented from contacting the exposed parts of the terminals.

(B) In the power window motor according to claim 4, the amount of protrusion of the cylindrical portion is set to be equal to or less than the amount of protrusion of the maximum protrusion of the other part of the gear housing. Motor. With this configuration, the width (thickness) in the output shaft direction of the gear housing is not increased while obtaining the effect of the fourth aspect.

(C) Claims 1 to 4, and the above (A),
The power window motor according to any one of (B), wherein the waterproof sheet is fixed by heat welding. With this configuration, the waterproof sheet can be easily fixed, and the waterproof sheet is less likely to come off.

(D) Claims 1 to 4, and the above (a),
The power window motor according to any one of (B), wherein the waterproof sheet is fixed by heat staking. With this configuration, the waterproof sheet can be easily fixed, and the waterproof sheet is less likely to come off.

(E) Claims 1 to 4, and (a),
The power window motor according to any one of (B), wherein the waterproof sheet is fixed with an adhesive. With this configuration, the waterproof sheet can be easily fixed, and the waterproof sheet is less likely to come off.

(F) Claims 1 to 7 and above (a) to
The motor for power windows according to any one of (e), wherein a seal member is provided between the connector member and the gear housing. With this configuration, it is possible to prevent the liquid from entering the inside from between the connector member and the gear housing.

(G) In the power window motor according to the sixth or seventh aspect, a stepped portion for positioning the fixing member in the press-fitting direction is formed in the fitting portion by contacting the fixing member. A motor for power windows characterized by the above. With this configuration, the fixing member can be easily positioned in the press-fitting direction and can be easily assembled.

(H) In the power window motor according to claim 7 and (g), a lip portion projecting radially outward is formed on the outer periphery of the fixing member. . This way,
Assembling the fixing member becomes easier, and the waterproof property between the outer periphery of the fixing member and the inner wall of the breathing hole is secured.

[0060]

As described in detail above, according to the present invention,
It is possible to provide a power window motor that can reduce the cost by suppressing an increase in the thickness of the gear housing and reducing the manufacturing equipment while keeping the product number one.

[Brief description of drawings]

FIG. 1 is a front view showing a power window motor of the present embodiment.

FIG. 2 is a partial cross-sectional front view showing the connector member of the present embodiment.

FIG. 3 is a side view showing the connector member of the present embodiment.

FIG. 4 is a side view showing a connector member of another example.

FIG. 5 is a side view showing a connector member of another example.

FIG. 6 is a side view showing a connector member of another example.

[Explanation of symbols]

2 ... Motor body, 3 ... Reduction unit, 4 ... Yoke housing,
6 ... Armature (rotor), 7 ... Gear housing, 8 ...
Worm shaft forming part of worm gear, 9 ... Worm wheel forming part of worm gear, 10, 21
... Connector member, 14 ... Terminal, 15, 23, 31, 41
... waterproof sheet, 24 ... fixing member, 9a ... output shaft, 12e
... connecting recess, 12f ... bottom, 12g ... breathing hole, 12h,
12i, 12j ... Cylindrical part, 22a ... Fitting part.

Continued front page    F-term (reference) 3D127 AA19 BB01 DF04 DF12                 5H605 AA07 AA08 BB05 CC01 CC06                       EC05                 5H607 AA11 AA12 BB01 CC01 DD10                       DD19 EE32 JJ07

Claims (7)

[Claims] 1. A worm gear (8, 9) is attached to a motor body (2) having a rotor (6) housed in a yoke housing (4) and a gear housing (7) fixed to the yoke housing (4). ) Is housed in the vehicle, and is attached to the vehicle door,
A power window motor that opens and closes a vehicle door window by rotationally driving an output shaft (9a) of the speed reducer (3), comprising a connector member (for mounting an external connector on the gear housing (7)). Breathing hole (12g), one of which communicates with the inside of the gear housing (7) and the other of which opens in a direction parallel to the output shaft (9a).
And a waterproof sheet (15, 23, 31, 41) disposed on the outside of the breathing hole (12g). 2. The power window motor according to claim 1, wherein the connector member (10, 21) has a connection recess (12e) connected to the external connector on a side connected to the external connector. Is formed and extends from the gear housing (7) side, and the bottom portion (1) of the coupling recess (12e) is formed.
The terminal (14) protruding from 2f) is held, and the outer end of the breathing hole (12g) is provided closer to the gear housing (7) than the bottom (12f) of the connecting recess (12e). A motor for power windows characterized by. 3. The power window motor according to claim 1, wherein the waterproof sheet (15, 31, 41) is arranged at an outer end of the breathing hole (12g). Motor for power windows. 4. The power window motor according to claim 3, wherein an outer end of the breathing hole (12g) is cylindrically projected from the connector member (10) in a cylindrical shape (12h, 12i,
12j) is a tip portion of a power window motor. 5. The power window motor according to claim 1 or 2, wherein a fitting portion (22a) is formed on an outer side of the breathing hole (12g), and the waterproof sheet (23) is attached to the fitting portion (22a). It is fixed to a fixing member (24) that can be fitted to the portion (22a), and the fixing member (24) is fitted to the fitting portion (22a), so that it is located outside the breathing hole (12g). A motor for a power window characterized by being provided. 6. The power window motor according to claim 5, wherein the fitting portion (22a) constitutes an inner wall of the breathing hole (12g), and the fixing member (24) includes: It is formed so that it can be internally fitted to the fitting portion (22a), and the outer end thereof is arranged deeper than the outer end of the breathing hole (12g) while being fitted internally. Characteristic power window motor. 7. The power window motor according to claim 5, wherein the fitting portion (22a) constitutes an inner wall of the breathing hole (12g), and the fixing member (24). Is a substantially cylindrical elastic member that can be internally fitted in the fitting portion (22a).