JP2003284292A - Brush holder and manufacturing method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brush holder wherein a sufficient disposition space is ensured for carious components disposed in the body portion of the brush holder. <P>SOLUTION: When the brush holder is constituted, a resin body 31 is used. In the resin body, substantially all the parts of the holder body portion 7a, an extended portion 7b, and a connector portion 7c are formed. Further, in the resin body, a terminal integral component 30 is buried wherein terminals 17a and 17b are coupled with each other in positions corresponding to the extended portion 7b and the connector portion 7c by coupling portions 30a and 30b. In the resin body 31, openings 31a and 31b are further formed for exposing the coupling portions 30a and 30b of the terminal integral component 30. The coupling portions 30a and 30b of the terminal integral component 30, exposed in the openings 31a and 31b in the resin body 31, are cut. Thus, the terminal integral component 30 is separated into independent terminals 17a and 17b, and the brush holder is constituted. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a brush holder used for a motor and a brush holder.

[0002]

2. Description of the Related Art A brush holder of a motor is integrally formed with a brush holder main body arranged in a motor housing for holding a power feeding brush, and a connector portion exposed from the housing and electrically connected to the outside. Things are known. In such a brush holder, a plurality of terminals extending from the connector portion to the brush holder main body portion are embedded.

In this motor, in addition to a power supply terminal which receives power from the outside, a detection device such as a rotation sensor for detecting the rotation speed of the motor is provided in the motor housing. There is a signal output terminal for outputting the signal to the outside. A plurality of terminals including such a power supply terminal and a signal output terminal are arranged at predetermined intervals (insulated) from each other in the brush holder main body section and the connector section.

Here, the brush holder is formed by resin injection molding. That is, the brush holder is formed by injecting resin into the mold with each terminal set in a mold for molding the holder.

At this time, if the brush holder is formed by setting individual terminals in the mold, the work of setting the terminals is complicated.
Therefore, conventionally, each terminal was connected at a predetermined location and set in a mold in an integrated state, then resin was injected into the mold to mold the brush holder, and then each terminal was connected. The part that was used is cut off. In this case, conventionally, the cut portion has been set on the brush holder main body.

[0006]

However, since the brush holder main body is provided with the power feeding brush, the spring for biasing the brush, and other electric parts (capacitor, coil, circuit breaker, etc.), the terminal is not provided. In order to set the cut portion on the main body portion, there is a limit in space, and the degree of freedom in design becomes low.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a brush holder which can sufficiently secure an arrangement space for various parts arranged in the brush holder main body. It is to provide a manufacturing method and a brush holder.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 is to provide a brush holder main body which is arranged in a motor housing and holds a power supply brush, and the housing from the holder main body. An extension that extends to the outside,
A connector portion exposed from the extension portion to the outside of the housing for electrical connection with the outside, the holder main body portion, the extension portion and the connector portion being integrally molded with resin A method of manufacturing a brush holder in which a plurality of terminals are embedded, wherein a plurality of terminals are connected to each other by a connecting portion at a position corresponding to at least one of the extending portion and the connector portion to form a terminal integrated component. Step, forming part or all of the brush holder main body part, the extension part and the connector part, burying the terminal integrated component, and further forming an opening for exposing the connecting part of the terminal integrated component The step of molding the resin body and the step of cutting the connecting portion of the terminal integrated component exposed at the opening of the resin body to separate the terminal integrated component. And a step of separating the plurality of terminals that, the.

According to a second aspect of the present invention, in the method of manufacturing the brush holder according to the first aspect, a coating portion that covers the opening of the resin body is provided in order to insulate the separated terminals. It has a step of integrally molding with the body.

According to a third aspect of the present invention, in the method of manufacturing the brush holder according to the second aspect, the brush holder is provided with a seal portion which is in close contact with the opening of the motor housing and seals the opening. It is integrally molded,
The covering portion is made of the same material as the sealing portion.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the method of manufacturing the brush holder described in the paragraph 1, the covering portion is formed of an elastic material. According to a fifth aspect of the present invention, in the method of manufacturing the brush holder according to the fourth aspect, the elastic material is formed of an elastomer material.

According to a sixth aspect of the present invention, in the method of manufacturing the brush holder according to any one of the first to fifth aspects, the connecting portion of the terminal-integrated component is provided on the extending portion and the connector portion. It is provided at each corresponding position.

According to a seventh aspect of the present invention, there is provided a brush holder main body portion which is disposed in the motor housing and holds the power feeding brush, an extension portion which extends from the holder main body portion to the outside of the housing, and the extension portion. A connector portion exposed to the outside of the housing for electrical connection with the outside, the holder main body portion, the extension portion and the connector portion are integrally molded with resin, and a plurality of terminals are embedded inside. A plurality of terminals corresponding to at least one of the extension portion and the connector portion while forming a part or all of the brush holder main body portion, the extension portion and the connector portion. A resin body in which terminal integrated parts connected to each other by a connecting part are embedded at a position to be formed, and an opening is formed to expose the connecting part of the terminal integrated part. Used, by cutting the connecting portion of the terminal integrated component which is exposed is configured to separate the plurality of terminals independent of the terminal integral part in the opening of the resin member.

According to an eighth aspect of the invention, in the brush holder according to the seventh aspect, in order to insulate each of the separated terminals, a coating portion that covers the opening of the resin body is provided on the resin body. Are integrally molded.

According to a ninth aspect of the present invention, in the brush holder according to the eighth aspect, the brush holder is integrally formed with a seal portion that is in close contact with the opening of the motor housing to seal the opening. The covering portion is made of the same material as the sealing portion.

According to a tenth aspect of the present invention, in the brush holder according to the eighth or ninth aspect, the covering portion is made of an elastic material. According to an eleventh aspect of the invention, in the brush holder according to the tenth aspect, the elastic material is formed of an elastomer material.

The invention described in claim 12 is the invention according to claims 7 to 1.
In the brush holder according to any one of 1 above, the connecting portion of the terminal integrated component is provided at a position corresponding to the extending portion and the connector portion, respectively.

(Operation) According to the first and seventh aspects of the invention, in constructing the brush holder, the brush holder main body portion, the extension portion, and a part or all of the connector portion are formed, and a plurality of terminals are formed. Is a resin body in which a terminal integrated component connected to each other by a connecting portion is embedded at a position corresponding to at least one of the extending portion and the connector portion of the holder, and an opening for exposing the connecting portion of the terminal integrated component is formed. Used. The brush holder is configured by cutting the connecting portion of the terminal integrated component exposed at the opening of the resin body and separating the terminal integrated component into a plurality of independent terminals. That is, in the brush holder, since the connecting portion of the terminal-integrated component is set in the extending portion other than the brush holder main body portion and the connector portion, it is not necessary to form an opening in the main body portion for cutting the connecting portion. Therefore, a sufficient space for arranging various parts including the brush arranged in the brush holder body can be secured.

According to the second and eighth aspects of the present invention, in order to insulate each of the separated terminals, a covering portion for covering the opening of the resin body is integrally formed with the resin body. Therefore, the covering portion surely prevents foreign matter from entering the opening where the terminal is exposed. Therefore, the short circuit of the terminal due to the foreign matter is surely prevented.

According to the third and ninth aspects of the present invention, the covering portion is formed of the same material as the sealing portion that is integrally molded with the brush holder and closely contacts the opening portion of the motor housing to seal the opening portion. . Therefore, the material forming the brush holder does not increase. If the covering portion and the sealing portion are made of the same material, the covering portion and the sealing portion can be formed at the same time.

According to the invention described in claims 4 and 10, the covering portion is formed of an elastic material. According to the invention described in claims 5 and 11, the covering portion is formed of an elastomer material which is an elastic material.

According to the sixth and the twelfth aspects of the present invention, the connecting portions of the terminal-integrated component are respectively provided at positions corresponding to the extending portion and the connector portion. That is, since the connecting portions are provided at two positions, the extending portion and the connector portion, it becomes difficult for each terminal of the terminal-integrated component to move independently. Therefore, it becomes easy to handle the terminal integrated parts.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a motor 1 of this embodiment. The motor 1 is a motor used as a drive source of a power window device mounted on a vehicle. The motor 1 is composed of a motor body 2 and a speed reducer 3.

The motor body 2 includes a yoke housing 4, which constitutes a motor housing, a pair of magnets 5, an armature (armature) 6, a brush holder 7 and a pair of brushes 8.
Is equipped with.

The yoke housing 4 is in the shape of a flat cylinder with a bottom, and a pair of magnets 5 are fixed to the inner surface thereof. An armature 6 is rotatably housed inside the magnet 5. The armature 6 has a rotating shaft 9, and the base end portion of the rotating shaft 9 is rotatably supported by a bearing 10 assembled in the center of the bottom portion of the yoke housing 4.

A pair of flange portions 4b extending radially outward is formed in the opening 4a of the yoke housing 4. The flange portion 4b is provided to fix the yoke housing 4 to the gear housing 21 described later with the screw 11.

Further, as shown in FIG. 2, the opening 4a (flange 4b) of the yoke housing 4 and the gear housing 2 are provided.
The brush holder 7 as shown in FIGS. 2 and 3 is sandwiched between the first opening 21a and the opening 21a.

The brush holder 7 is made of resin and has a shape that substantially closes the opening 4a of the yoke housing 4 (hereinafter referred to as a holder body) 7a and a diameter from the holder body 7a. Extending portion 7b extending outward in the direction
And a connector portion 7c exposed from the extension portion 7b to the outside of the motor 1 for electrical connection with the outside.

On the outer peripheral portion of the holder main body portion 7a, a holding portion 7d is provided over the entire circumference so as to be connected to the extending portion 7b. The sandwiching portion 7d is sandwiched together with the extending portion 7b between the opening 4a (flange portion 4b) of the yoke housing 4 and the opening 21a of the gear housing 21.

A bearing 12 for rotatably supporting a predetermined portion on the tip end side of the rotating shaft 9 is attached to the center of the holder body 7a. Further, the holder main body portion 7a is formed with a brush holding portion 7e for holding the pair of brushes 8. The brush 8 is held by the brush holding portion 7e and slidably contacts a commutator 13 that rotates integrally with the rotating shaft 9.

A housing recess 7f is formed on the side of the holder body 7a opposite to the brush holder 7e. The circuit board 14 is attached to the accommodation recess 7f. A pair of Hall element magnetic sensors 15 are arranged on the circuit board 14. Here, a drive-side rotating body 24a of a clutch 24, which will be described later, is connected to the tip of the rotating shaft 9 so as to rotate integrally with the rotating shaft 9, and the rotating body 24a has multiple poles in the circumferential direction. Magnetized ring-shaped sensor magnet 16
Is stuck. That is, the sensor magnet 16 is
It is adapted to rotate together with the rotary shaft 9. The Hall element magnetic sensor 15 outputs a detection signal for detecting rotation information (rotation speed, rotation speed, etc.) of the rotating shaft 9 based on a change in the magnetic field of the sensor magnet 16 rotating with the rotating shaft 9.

As shown in FIGS. 3 and 4, six terminals 17 are embedded inside the holder main body portion 7a, the extension portion 7b and the connector portion 7c of the brush holder 7.
Two of these six terminals 17 are power supply terminals 17a, and the remaining four are signal output terminals 17b. The power supply terminal 17a is
Power is supplied from the outside, and the power is supplied to the brush 8. The signal output terminal 17b outputs the detection signal from the circuit board 14 to the outside.

The power supply terminal 17a extends from the connector portion 7c to a predetermined position of the holder main body portion 7a via the extending portion 7b and is formed in a predetermined shape so as to be connected to the brush 8. The power supply terminals 17a are formed to have substantially the same width as a whole. On the other hand, the signal output terminal 17b extends from the connector portion 7c to a predetermined position of the holder main body portion 7a via the extension portion 7b and is formed in a predetermined shape so as to be connected to the circuit board 14.
In the signal output terminal 17b, the exposed portion (see FIGS. 1 and 2) in the opening 7g of the connector portion 7c is formed to have the same width as the power feeding terminal 17a, and the other embedded portion is the power feeding terminal 17a. It is formed narrower. The power supply terminal 17a and the signal output terminal 17b are arranged substantially parallel to each other with a space therebetween and are insulated from each other.

The holding portion 7d, the extending portion 7b and the connector portion 7c of the brush holder 7 are covered with a covering portion 18 made of an elastomer material having elasticity and insulation. Covering portion 18 for covering the sandwiching portion 7d and the extending portion 7b
Is sandwiched between the openings 4a, 21a of the housings 4, 21 to seal the openings 4a, 21a and prevent foreign matter such as water droplets and dust from entering the housings 4, 21. Further, the covering portion 18 that covers the connector portion 7c prevents foreign matter from entering the opening 7g of the connector portion 7c. That is, such a covering portion 18
Form a seal part.

The speed reducing portion 3 is provided with a gear housing 21, a worm shaft 22, a worm wheel 23, and a clutch 24 which constitute a motor housing. The gear housing 21 is made of resin and has the worm shaft 2 inside.
2, the worm wheel 23 and the clutch 24 are formed in a predetermined shape so as to be housed therein. Also, the gear housing 21
Has an opening 21a facing the opening 4a (flange 7b) of the yoke housing 4. And
The gear housing 21 and the yoke housing 4 are fixed by the screw 11 while the brush holder 7 is sandwiched between the housings 4 and 21.

The worm shaft 22 is rotatably supported by bearings 25 and 26 provided at predetermined positions in the gear housing 21, and is drivingly connected to the rotary shaft 9 extending from the motor body 2 via a clutch 24. This clutch 24
Transmits the driving force from the rotary shaft 9 to the worm shaft 22,
On the contrary, it operates so as to lock the rotation of the worm shaft 22 so that the driving force from the worm shaft 22 is not transmitted to the rotary shaft 9. That is, the clutch 24 is connected to the load side (the output shaft 27
It is provided to prevent the rotation of the motor 1 from the side).

The worm shaft 22 is a worm wheel 23.
Is meshed with. The worm wheel 23 is drivingly connected to an output shaft 27 arranged so as to be orthogonal to the worm shaft 22. The output shaft 27 is drivingly connected to a known X-arm type regulator (not shown) that opens and closes a window glass (not shown). When the output shaft 27 rotates, the regulator operates and the window glass opens and closes.

Next, the brush holder 7 of the present embodiment used for the motor 1 thus constructed is manufactured as follows. First, a terminal integrated component 30 having a power supply terminal 17a and a signal output terminal 17b as shown in FIG. 6 is arranged in a first mold (not shown) for molding the brush holder 7. That is, the terminal integrated component 30 is provided with connecting portions 30a and 30b for connecting between the adjacent terminals 17a and 17b at positions corresponding to the base end portion 7h and the extending portion 7b of the connector portion 7c. Such a terminal integrated component 30 is formed by punching out a plate-shaped member and bending it into a predetermined shape.

Next, resin is poured into the first molding die in which the terminal-integrated part 30 is arranged, and as shown in FIG.
Substantially all of the brush holder 7 (holder main body portion 7a, sandwiching portion 7
d, substantially all of the extending portion 7b and the connector portion 7c) is formed. In the resin body 31, openings 31a and 31b are formed in the base end portion 7h and the extension portion 7b of the connector portion 7c so that the connection portions 30a and 30b of the terminal integrated component 30 are exposed.

Next, the resin body 3 constituting the brush holder 7
1 is taken out from the first molding die, a jig (not shown) is inserted from each opening 31a, 31b of the resin body 31, and each connecting portion 30a, 30 of the terminal integrated component 30 is made by the jig.
b is cut (see FIG. 4). That is, the power supply terminal 17a and the signal output terminal 17b are separated and insulated from each other.

Next, the resin body 3 constituting the brush holder 7
The resin body 31 is arranged in a second molding die (not shown) for molding the coating portion 18 made of an elastomer material on the first molding die 1. Then, the elastomer material is poured into the second molding die, and the covering portion 18 (sealing portion) is integrally molded with the resin body 31 constituting the holding portion 7d, the extending portion 7b and the connector portion 7c of the brush holder 7. It In this case, the connector part 7
Openings 31a, 3 provided in the base end portion 7h and the extension portion 7b of c
The terminal 1b is filled with the elastomer material forming the coating portion 18 at the same time to form the terminal coating portions 18a and 18b which cover the terminals 17a and 17b (see FIGS. 2 and 3). That is, the terminals 17a and 17b are prevented from being exposed through the openings 31a and 31b. Therefore, foreign matter such as water droplets or dust is prevented from entering the openings 31a and 31b, and a short circuit between the terminals 17a and 17b is prevented. Thus, the brush holder 7 of the present embodiment
Is being manufactured.

As shown in FIG. 2, the covering portion 18b that fills the opening 31b provided in the extending portion 7b includes the opening portion 4a (flange portion 4b) of the yoke housing 4 and the opening portion 21a of the gear housing 21. Sandwiched between. Therefore, peeling of the covering portion 18b is reliably prevented.

As described above, this embodiment has the following effects. (1) In constructing the brush holder 7, substantially all of the holder main body portion 7a, the extending portion 7b and the connector portion 7c are formed, and the terminals 17a and 17b are extended by the extending portion 7.
b and the connecting portion 30 at a position corresponding to the connector portion 7c
Terminal integrated part 3 connected to each other by a and 30b
A resin body 31 in which 0 is embedded is used. This resin body 31
Further, the connecting portions 30a, 3 of the terminal integrated component 30 are
Openings 31a and 31b for exposing 0b are formed. Then, the connecting portions 30a, 30b of the terminal integrated component 30 exposed at the openings 31a, 31b of the resin body 31 are cut to separate the terminal integrated component 30 into independent terminals 17a, 17b to form the brush holder 7. It That is, in the brush holder 7, since the connecting portions 30a and 30b of the terminal integrated component 30 are set in the extending portion 7b and the connector portion 7c other than the brush holder main body portion 7a, the connecting portions 30a and 30b are cut into the main body portion 7a. It is not necessary to form the openings 31a and 31b for doing so. Therefore, it is possible to secure a sufficient space for arranging various parts including the brush 8 arranged in the brush holder body 7a.
Therefore, the degree of freedom in designing the brush holder 7 can be increased.

(2) Terminals 17a and 17b separated from the resin body 31 by covering the openings 31a and 31b of the resin body 31 with the covering portions 18a and 18b integrally formed with the resin body 31.
Is being insulated. Therefore, this covering portion 18a,
18b reliably prevents foreign matter from entering the openings 31a, 31b exposing the terminals 17a, 17b. Therefore, the terminals 17a, 17b caused by the foreign matter
It is possible to surely prevent a short circuit.

(3) The coating portions 18a and 18b are integrally molded with the brush holder 7 and are in close contact with the openings 4a and 21a of the yoke housing 4 and the gear housing 21.
It is formed of the same material as the covering portion 18 (sealing portion) that seals a and 21a. Therefore, the material forming the brush holder 7 does not increase. If the covering portions 18a and 18b and the covering portion 18 which is the seal portion are made of the same material, the covering portion 18
It is possible to simultaneously form a and 18b and the covering portion 18 that is the seal portion.

(4) Connection part 3 of terminal integrated component 30
0a and 30b are provided at positions corresponding to the extending portion 7b and the connector portion 7c of the brush holder 7, respectively. That is, since the connecting portions 30a and 30b are provided at the two positions of the extending portion 7b and the connector portion 7c, it becomes difficult for the terminals 17a and 17b of the terminal integrated component 30 to move independently.
Therefore, handling of the terminal integrated component 30 becomes easy.

The embodiment of the present invention may be modified as follows. In the above embodiment, the connecting portions 30a and 30b of the terminal integrated component 30 are provided at the positions corresponding to the extending portion 7b and the connector portion 7c of the brush holder 7, respectively, but they may be provided at any one of them. Good.

In the above embodiment, the terminal covering portion 1
8a, 18b and openings 4a, 2 in both housings 4, 21
Although the covering portion 18 as a seal portion for sealing 1a is formed of the same material at the same time, different materials may be used. Further, they need not be formed at the same time. Further, the terminal covering portions 18a and 18b may be made of an elastic material other than the elastomer material or a material other than the elastic material. If the terminal covering portions 18a and 18b are not particularly required, they may be omitted.

The configuration of the brush holder 7 of the above-described embodiment may be appropriately changed except for the above-mentioned another example. Further, the manufacturing procedure of the brush holder 7 may be changed appropriately. The configuration of the motor 1 of the above embodiment may be changed as appropriate. For example, the motor may be the motor main body 2 only, which does not include the speed reducer 3. Further, a circuit board forming a control circuit for controlling the motor 1 may be provided.

[0050]

As described in detail above, according to the present invention,
It is possible to provide a brush holder manufacturing method and a brush holder capable of sufficiently securing a space for arranging various components arranged in the brush holder main body.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a motor of this embodiment.

FIG. 2 is a cross-sectional view of a main part of a motor.

FIG. 3 is a view on arrow A of FIG. 2 for explaining the configuration of the brush holder.

FIG. 4 is a diagram showing a terminal in the brush holder.

FIG. 5 is a diagram showing a resin body that constitutes a brush holder.

FIG. 6 is a diagram showing a component integrated with a terminal.

[Explanation of reference numerals] 4 ... Yoke housing constituting motor housing, 4
a ... Opening part, 7 ... Brush holder, 7a ... Brush holder body part, 7b ... Extension part, 7c ... Connector part, 8 ... Power supply brush, 17a ... Power supply terminal as terminal, 1
7b: a signal output terminal as a terminal, 18
... covering portion forming a seal portion, 18a, 18b ... terminal covering portion as a covering portion, 21 ... gear housing forming a motor housing, 21a ... opening portion, 30 ... integral terminal part, 30a, 30b ... connecting portion, 31 ... Resin bodies, 31a, 31b ... Openings.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masakuni Masuda             Asumo Corporation, 390 Umeda, Kosai City, Shizuoka Prefecture             In the company F-term (reference) 5H605 AA08 BB05 BB09 CC03 CC07                       DD03 DD05 DD09 EA23 FF06                       GG04 GG06                 5H613 AA01 BB23 GA13 GB17 KK02

Claims (12)

[Claims] 1. A brush holder main body which is disposed in a motor housing and holds a power feeding brush, an extending portion which extends from the holder main body to the outside of the housing, and an external portion which is exposed from the extending portion to the outside of the housing and is external. A method for manufacturing a brush holder, comprising: a connector part for electrical connection with a holder main body part, the extension part, and the connector part, which are integrally molded with resin, and in which a plurality of terminals are embedded. And a step of forming a terminal integrated component in which the plurality of terminals are connected to each other by a connecting portion at a position corresponding to at least one of the extending portion and the connector portion, the brush holder main body portion, the extending portion And forming a part or all of the connector portion, burying the terminal integrated component, and further exposing a connecting portion of the terminal integrated component. A step of molding a resin body having an opening formed therein, and a step of cutting the connecting portion of the terminal integrated component exposed at the opening of the resin body to separate the terminal integrated component into a plurality of independent terminals, A method for manufacturing a brush holder, comprising: 2. The method of manufacturing a brush holder according to claim 1, wherein a cover portion that covers the opening of the resin body is integrally molded with the resin body in order to insulate the separated terminals. A method for manufacturing a brush holder, which has a step. 3. The method of manufacturing a brush holder according to claim 2, wherein the brush holder is integrally formed with a seal portion that is in close contact with the opening of the motor housing to seal the opening. The method for manufacturing a brush holder, wherein the covering portion is formed of the same material as the sealing portion. 4. The method of manufacturing a brush holder according to claim 2, wherein the covering portion is made of an elastic material. 5. The method of manufacturing a brush holder according to claim 4, wherein the elastic material is formed of an elastomer material. 6. The method for manufacturing a brush holder according to claim 1, wherein the connecting portion of the terminal-integrated component is provided at a position corresponding to the extending portion and the connector portion, respectively. A method of manufacturing a brush holder, characterized in that 7. A brush holder main body portion, which is disposed in a motor housing and holds a power feeding brush, an extension portion extending from the holder main body portion to the outside of the housing, and an external portion exposed from the extension portion to the outside of the housing. And a connector portion for electrical connection with the holder main body portion, the extension portion and the connector portion are integrally molded with resin, and a plurality of terminals are embedded in the brush holder. Forming a part or all of the brush holder main body portion, the extension portion and the connector portion, and connecting the plurality of terminals to each other by a connecting portion at a position corresponding to at least one of the extension portion and the connector portion. A resin body is used in which the connected terminal integrated component is embedded and an opening is formed to expose the connecting portion of the terminal integrated component. Brush holder, wherein the exposed by opening by cutting the connecting portion of the terminal piece part is constructed to separate the plurality of terminals independent of the terminal integral part. 8. The brush holder according to claim 7, wherein a covering portion that covers the opening of the resin body is integrally formed with the resin body in order to insulate the separated terminals. Brush holder characterized by. 9. The brush holder according to claim 8, wherein the brush holder is integrally formed with a seal portion which is in close contact with the opening of the motor housing and seals the opening. The brush holder is characterized in that the portion is made of the same material as the seal portion. 10. The brush holder according to claim 8, wherein the covering portion is made of an elastic material. 11. The brush holder according to claim 10, wherein the elastic material is formed of an elastomer material. 12. The brush holder according to claim 7, wherein the connecting portion of the terminal-integrated component is provided at a position corresponding to each of the extending portion and the connector portion. Brush holder characterized by.