JPH0334296B2 - - Google Patents
Info
- Publication number
- JPH0334296B2 JPH0334296B2 JP8972183A JP8972183A JPH0334296B2 JP H0334296 B2 JPH0334296 B2 JP H0334296B2 JP 8972183 A JP8972183 A JP 8972183A JP 8972183 A JP8972183 A JP 8972183A JP H0334296 B2 JPH0334296 B2 JP H0334296B2
- Authority
- JP
- Japan
- Prior art keywords
- brush
- brush holder
- insulator
- axial direction
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012212 insulator Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Current Collectors (AREA)
Description
【発明の詳細な説明】
本発明は電動機に使用するブラシホルダの構造
の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the structure of a brush holder used in an electric motor.
従来、整流器であるコンミテータに対向して摺
動するブラシを保持するブラシホルダの構造は、
個々のブラシを保持するブラシホルダを一枚のプ
レートに複数個固定し、このプレートをヨークに
固定するフレームの外からビス等で固定するとい
うものが大半である。これに対して今日装置自体
の軽量化を目的として、電動機は樹脂によつてブ
ラシホルダとプレートを一体成形して製作すると
いう傾向になつてきている。 Conventionally, the structure of a brush holder that holds a brush that slides against a commutator, which is a rectifier, is as follows.
In most cases, a plurality of brush holders that hold individual brushes are fixed to a single plate, and this plate is fixed with screws or the like from outside the frame that is fixed to the yoke. In contrast, today there is a trend toward manufacturing electric motors by integrally molding the brush holder and plate from resin in order to reduce the weight of the device itself.
この樹脂製ブラシホルダのブラシ格納部は、ブ
ラシの押圧方向である径方向のみすいており、ア
ーマチヤの軸方向の上下、そしてアーマチヤの回
転方向の左右はブラシの動きを規制するようにな
つている。ところがこのような形状をしたブラシ
ホルダを成形するには、ブラシ格納部の空間を筒
状に設ける必要から、成形型が複雑になり製作が
困難である。 The brush storage portion of this resin brush holder is open only in the radial direction, which is the direction in which the brush is pressed, and is designed to restrict brush movement up and down in the axial direction of the armature, and left and right in the rotational direction of the armature. . However, in order to mold a brush holder having such a shape, it is necessary to provide a cylindrical space for the brush storage portion, which makes the mold complicated and difficult to manufacture.
本発明は上記問題に鑑み、ブラシの格納部の軸
方向片側を開放し、この開放部分にブラシの軸方
向の移動を規制するインシユレータとを配置する
ことによつて、成形の容易なブラシホルダの提供
を目的とするものである。 In view of the above-mentioned problems, the present invention opens one side of the brush storage part in the axial direction and arranges an insulator for regulating the movement of the brush in the axial direction in this open part, thereby creating a brush holder that is easy to mold. It is intended for the purpose of providing.
以下本発明を図に示す実施例について説明す
る。第１図は本発明によるブラシホルダを組付け
したモータの断面図、第２図は第１図の軸方向の
Ａ−Ａ断面図、第３図はフレームの突出部の断面
図である。１は端面内方に伸びた段付部１ａを設
けたヨーク、２は底部に内側へ向けて打出した突
出部２ａを設け、段付部１ａと合致する内径のフ
レーム、３は円筒形コンミテータ３ａを有するア
ーマチヤである。第４図は本発明のブラシホルダ
の斜視図、第５図はインシユレータの平面図であ
る。ブラシホルダ４は樹脂にて一体成形され、ブ
ラシ５を格納する格納部４ａはプレート部５ｂ上
にブラシ５の押圧方向である径方向と、軸方向片
側を開放して設けられており、位置決め及びブラ
シリード線引き出し用の切欠部４ｃを有する。６
はブラシホルダ４の格納部４ａと位置決め用切欠
６ａで位置決めされてブラシおさえ部６ｂでブラ
シ５の軸方向のずれを規制するインシユレータ
で、スリツトを入れた分離部６ｃがフレーム２の
突部２ａと当接する。７はブラシ５をコンミテー
タ３ａへ押圧するブラシスプリング、８はフレー
ム２を図示せぬハウジングの間にヨーク１を挟持
して固定するスルーボルトである。 The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a motor in which a brush holder according to the present invention is assembled, FIG. 2 is a cross-sectional view along line A-A in the axial direction of FIG. 1, and FIG. 3 is a cross-sectional view of a protruding portion of a frame. 1 is a yoke provided with a stepped portion 1a extending inward from the end surface; 2 is a frame having a protruding portion 2a protruding inwardly at the bottom; the inner diameter matches the stepped portion 1a; 3 is a cylindrical commutator 3a. It is an armature with FIG. 4 is a perspective view of the brush holder of the present invention, and FIG. 5 is a plan view of the insulator. The brush holder 4 is integrally molded from resin, and a storage section 4a for storing the brush 5 is provided on a plate section 5b with one side open in the radial direction, which is the pressing direction of the brush 5, and one side in the axial direction, and is used for positioning and It has a notch 4c for drawing out the brush lead wire. 6
is an insulator that is positioned by the storage part 4a of the brush holder 4 and the positioning notch 6a, and which restricts the axial displacement of the brush 5 by the brush holding part 6b. come into contact with 7 is a brush spring that presses the brush 5 toward the commutator 3a, and 8 is a through bolt that clamps and fixes the yoke 1 between the frame 2 and a housing (not shown).
次に上記構成においてその作用を説明する。ブ
ラシホルダ４は格納部４ａにブラシ５を格納して
径方向にはブラシスプリング７でコンミテータ３
ａへ押圧し、軸方向にはインシユレータ６でブラ
シ５の動きを規制している。そして第１図の段付
部１ａからフレーム２を底部までの寸法Ｂが、第
３図の段付部１ａから突出部２ａまでの寸法Ｃよ
り大きいのでスルーボルト８で締付固定すると、
フレーム２の突出部２ａがインシユレータ６の分
離部６ｃと当接して撓み、この弾性によつてブラ
シホルダ４、ブラシ５、インシユレータ６がヨー
ク１とフレーム２の間に挟持されて軸方向に固定
できる。 Next, the operation of the above configuration will be explained. The brush holder 4 stores the brush 5 in the storage part 4a and connects the commutator 3 with the brush spring 7 in the radial direction.
a, and the movement of the brush 5 is regulated by an insulator 6 in the axial direction. Since the dimension B from the stepped part 1a to the bottom of the frame 2 in FIG. 1 is larger than the dimension C from the stepped part 1a to the protruding part 2a in FIG. 3, when the through bolt 8 is tightened and fixed,
The protruding part 2a of the frame 2 comes into contact with the separation part 6c of the insulator 6 and is bent, and this elasticity allows the brush holder 4, brush 5, and insulator 6 to be held between the yoke 1 and the frame 2 and fixed in the axial direction. .
このようにブラシホルダ４は格納部４ａの形状
が簡単になつたので成形も容易になり、ビス等に
よるフレーム２の外からの固定も不要になるから
部品数も低減でき、さらに樹脂を採用したために
軽量化も可能となる。 In this way, the brush holder 4 can be easily molded because the shape of the storage part 4a is simplified, and the number of parts can be reduced because there is no need to fix the frame 2 from outside with screws, etc. Furthermore, since the brush holder 4 is made of resin, the number of parts can be reduced. It also becomes possible to reduce the weight.
なお本発明の他の実施例として次のようなもの
がある。 Other embodiments of the present invention include the following.
第６図に示すようにブラシホルダ４とインシユ
レータ６の配置を入れ換え、ヨーク１の段付部１
ａの他にインシユレータ６の分離部６ｃと当接す
る凸部１ｂを設けることによつて、ブラシホルダ
４とインシユレータ６を挟持してもよい。 As shown in FIG. 6, the arrangement of the brush holder 4 and the insulator 6 is changed, and
The brush holder 4 and the insulator 6 may be sandwiched by providing a convex portion 1b that comes into contact with the separation portion 6c of the insulator 6 in addition to a.
又、第７図に示すようにブラシホルダ４とイン
シユレータ６の配置を入れ換え、フレーム２の突
出部２ａと当接する分離部をブラシホルダ４に設
けてもよい。 Alternatively, as shown in FIG. 7, the brush holder 4 and the insulator 6 may be arranged interchangeably, and the brush holder 4 may be provided with a separation portion that comes into contact with the protruding portion 2a of the frame 2.
さらに、第８図に示すようにインシユレータ６
とフレーム２の間に第９図に示すような波形座金
９を挿入して、この波形座金９の弾性でブラシホ
ルダ４とインシユレータ６をヨーク１とフレーム
２の間に挟持させてもよい。 Furthermore, as shown in FIG.
A wave-shaped washer 9 as shown in FIG. 9 may be inserted between the yoke 1 and the frame 2, and the brush holder 4 and the insulator 6 may be held between the yoke 1 and the frame 2 by the elasticity of the wave-shaped washer 9.
以上述べたように本発明によれば、ブラシホル
ダのブラシの格納部の軸方向片側を開放し、この
開放部分にブラシの軸方向の移動を規制するイン
シユレータとを配置することによつて、ブラシの
格納部の形状を簡単にしているから、成形が容易
になり、さらにフレームの外からの固定も不要と
なつたので部品点数も低減できるという優れた効
果がある。 As described above, according to the present invention, one side of the brush housing portion of the brush holder in the axial direction is opened, and an insulator for regulating the movement of the brush in the axial direction is disposed in this open portion. Since the shape of the housing part is simple, molding is easy, and since there is no need to fix the frame from outside, it has the excellent effect of reducing the number of parts.
第１図は本発明によるブラシホルダを組付けし
たモータの断面図、第２図は第１図の軸方向のＡ
−Ａ断面図、第３図はフレームの突出部の断面
図、第４図はブラシホルダの斜視図、第５図はイ
ンシユレータの平面図、第６、第７、第８及び第
９図は本発明の他の実施例である。
１……ヨーク、２……フレーム、２ａ……突出
部、３……アーマチヤ、３ａ……コンミテータ、
４……ブラシホルダ、４ａ……格納部、５……ブ
ラシ、６……インシユレータ、６ｃ……分離部。
FIG. 1 is a sectional view of a motor in which a brush holder according to the present invention is assembled, and FIG. 2 is a cross-sectional view of a motor in the axial direction of FIG.
-A sectional view, Fig. 3 is a sectional view of the protruding part of the frame, Fig. 4 is a perspective view of the brush holder, Fig. 5 is a plan view of the insulator, and Figs. This is another embodiment of the invention. 1... Yoke, 2... Frame, 2a... Protrusion, 3... Armature, 3a... Commutator,
4... Brush holder, 4a... Storage section, 5... Brush, 6... Insulator, 6c... Separation section.
Claims (1)
ームに挟持され、アーマチヤと一体のコンミテー
タと対向して摺動する複数のブラシホルダにおい
て、 前記ブラシの複数の格納部は軸方向片側が開放
され、この開放部分に全ての前記ブラシ軸方向の
移動を規制する環状のインシユレータとを配置し
たことを特徴とするブラシホルダ。 ２ 前記環状のインシユレータには、このインシ
ユレータのがたを防止する弾性部を有している特
許請求の範囲第１項記載のブラシホルダ。[Scope of Claims] 1. In a plurality of brush holders that are held between a yoke of an electric motor and a frame fixed to the yoke and slide in opposition to a commutator integrated with an armature, the plurality of housing portions of the brushes are arranged on one side in the axial direction. 1. A brush holder characterized in that an annular insulator is disposed in the open portion, and an annular insulator for regulating the movement of all the brushes in the axial direction. 2. The brush holder according to claim 1, wherein the annular insulator has an elastic portion that prevents the insulator from rattling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8972183A JPS59216438A (en) | 1983-05-20 | 1983-05-20 | Brush holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8972183A JPS59216438A (en) | 1983-05-20 | 1983-05-20 | Brush holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59216438A JPS59216438A (en) | 1984-12-06 |
| JPH0334296B2 true JPH0334296B2 (en) | 1991-05-22 |
Family
ID=13978626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8972183A Granted JPS59216438A (en) | 1983-05-20 | 1983-05-20 | Brush holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59216438A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0640441Y2 (en) * | 1986-02-08 | 1994-10-19 | 三菱電機株式会社 | Brush holding device |
| JPH0640462Y2 (en) * | 1987-03-04 | 1994-10-19 | 三菱電機株式会社 | Brush device |
| JP2563287Y2 (en) * | 1991-03-14 | 1998-02-18 | アスモ株式会社 | DC motor |
| DE9106978U1 (en) * | 1991-06-07 | 1992-10-01 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| KR20030078185A (en) * | 2002-03-28 | 2003-10-08 | 발레오만도전장시스템스코리아 주식회사 | Brush assembly of starter |
| CN101167232B (en) * | 2005-05-02 | 2011-09-21 | 株式会社美姿把 | Brush holder in electric motor |
| JP6096417B2 (en) * | 2012-03-29 | 2017-03-15 | 株式会社ミツバ | Electric motor |
-
1983
- 1983-05-20 JP JP8972183A patent/JPS59216438A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59216438A (en) | 1984-12-06 |
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