JP2613845B2 - Structure of brush holder in DC motor - Google Patents
Structure of brush holder in DC motorInfo
- Publication number
- JP2613845B2 JP2613845B2 JP6012052A JP1205294A JP2613845B2 JP 2613845 B2 JP2613845 B2 JP 2613845B2 JP 6012052 A JP6012052 A JP 6012052A JP 1205294 A JP1205294 A JP 1205294A JP 2613845 B2 JP2613845 B2 JP 2613845B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- brush
- supply terminal
- terminal
- terminal portion
- 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 - Fee Related
Links
Landscapes
- Motor Or Generator Frames (AREA)
- Motor Or Generator Current Collectors (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、直流モータにおけるブ
ラシ保持部の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a brush holding portion in a DC motor.
【０００２】[0002]
【従来の技術】図４および図５は従来の直流モータにお
けるブラシ保持部の構造を示すもので、図４は全体の組
立図、図５は外部端子部としてのコネクター部の組立図
である。これらの図において、４１は平板状の配線プレ
ートで、中央に図示を省略したロータが嵌挿される大径
の穴４２が穿設されるとともに、穴４２の周りに矩形状
の穴４３、長穴４４、小径の穴４５が、それぞれ穿設さ
れている。４７は断面コ字状のブラシボックスで、穴４
２を挟んで対向するようにして配線プレート４１の表面
にかしめ固定されている。ブラシボックス４７内には、
図示を省略しているが、先端部分が穴４２内に臨んでロ
ータの周面に摺接する給電ブラシが圧縮スプリングで弾
持されている。2. Description of the Related Art FIGS. 4 and 5 show the structure of a brush holding portion in a conventional DC motor. FIG. 4 is an overall assembly diagram, and FIG. 5 is an assembly diagram of a connector portion as an external terminal portion. In these figures, reference numeral 41 denotes a flat wiring plate. A large-diameter hole 42 into which a rotor (not shown) is inserted is formed in the center, and a rectangular hole 43 and a long hole are formed around the hole 42. 44 and a small-diameter hole 45 are respectively formed. 47 is a brush box having a U-shaped cross section, and hole 4
It is caulked and fixed to the surface of the wiring plate 41 so as to be opposed to each other with the 2 interposed therebetween. In the brush box 47,
Although not shown, a power supply brush whose front end faces the inside of the hole 42 and slides on the peripheral surface of the rotor is held by a compression spring.
【０００３】４８は図５に示すように、全体が樹脂で形
成された側面視略逆Ｌ字状のコネクター部で、給電側の
ソケット（図示を省略）が嵌合する凹嵌部４９が形成さ
れている。５０、５１は給電ターミナルで、一端が凹嵌
部４９から露呈し、他端がそれぞれコネクター部４８の
上面部および側面部から露呈して給電端子部５２および
中継端子部５３を構成するようにして、コネクター部４
８内にインサート成形されている。５５は焼損防止素子
で、給電側とロータとの間に介在して、ロータ側に誤っ
て過大な電流が流れた場合に自動的に電流を止めてロー
タ等の焼損を防止するためのものである。この焼損防止
素子５５の端子５６、５７は、前記給電ターミナル５１
の中継端子部５３および給電ターミナル５８にはんだ付
け固定されている。[0005] As shown in FIG. 5, reference numeral 48 denotes a generally inverted L-shaped connector portion in side view formed entirely of resin, and has a concave fitting portion 49 into which a socket (not shown) on the power supply side is fitted. Have been. Reference numerals 50 and 51 denote power supply terminals, one end of which is exposed from the concave fitting portion 49, and the other end of which is exposed from the upper surface and the side surface of the connector 48, respectively, to form a power supply terminal 52 and a relay terminal 53. , Connector part 4
8 is insert-molded. Reference numeral 55 denotes a burnout prevention element which is interposed between the power supply side and the rotor to automatically stop the current when an excessively large current flows to the rotor side to prevent burnout of the rotor and the like. is there. The terminals 56 and 57 of the burnout prevention element 55 are connected to the power supply terminal 51.
Are soldered and fixed to the relay terminal portion 53 and the power supply terminal 58.
【０００４】このように組み立てられたコネクター部
は、給電端子部５２が穴４５から、焼損防止用保護素子
５５が穴４３から、また給電ターミナル５８が穴４４か
らそれぞれ突出するようにして、図４に示すように、配
線プレート４１の底面にかしめ固定される。そして、給
電端子部５２と給電ターミナル５８とのそれぞれに、リ
ード線を介して前記給電ブラシに結線されることによ
り、給電ブラシに給電される。[0004] The connector portion assembled in this manner is configured such that the power supply terminal portion 52 protrudes from the hole 45, the burnout prevention protection element 55 protrudes from the hole 43, and the power supply terminal 58 protrudes from the hole 44, respectively. As shown in the figure, the wiring plate 41 is caulked and fixed to the bottom surface. Then, power is supplied to the power supply brush by being connected to each of the power supply terminal 52 and the power supply terminal 58 via a lead wire.
【０００５】[0005]
【発明が解決しようとする課題】上述した従来の直流モ
ータにおけるブラシ保持部の構造では、配線プレート４
１、ブラシボックス４７およびコネクター部４８が、そ
れぞれ別部品で構成されているため、部品点数が多くな
り、かしめ工程も必要となる。また、給電ターミナル５
１、５８と焼損防止素子５５との接続および給電ターミ
ナル５０、５８と給電ブラシとの接続をはんだ付けで行
わなければならず、組立性が悪いといった問題があっ
た。In the structure of the brush holding portion in the conventional DC motor described above, the wiring plate 4
1. Since the brush box 47 and the connector section 48 are each composed of separate parts, the number of parts increases and a caulking step is also required. Power supply terminal 5
The connection between the power supply terminals 1 and 58 and the burnout prevention element 55 and the connection between the power supply terminals 50 and 58 and the power supply brush must be performed by soldering, and there is a problem that the assemblability is poor.
【０００６】したがって、本発明は上記した従来の問題
に鑑みてなされたものであり、その目的とするところ
は、部品点数を削減し、かつ組立性を向上させた直流モ
ータにおけるブラシ保持部の構造を提供することにあ
る。Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and has as its object to reduce the number of parts and improve the assemblability of a brush holding structure in a DC motor. Is to provide.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に、本発明に係る直流モータにおけるブラシ保持部の構
造は、ロータに摺接する給電ブラシを保持する一対のブ
ラシ保持部と、一端が電源端子部を構成し、他端が前記
給電ブラシに給電する給電端子部を構成する少なくとも
一対の給電ターミナルと、この給電ターミナルの電源端
子部を保持する外部端子部とを備え、前記ブラシ保持部
と外部端子部とを樹脂で一体形成するとともに、前記給
電ターミナルを電源端子部と給電端子部とが露呈するよ
うにして樹脂に埋設し、前記ブラシ保持部に、給電ター
ミナルの給電端子部に給電ブラシが直接接触するような
給電ブラシ位置決め手段を設ける。また、本発明に係る
直流モータにおけるブラシ保持部の構造は、一方の給電
ターミナルの給電端子部の途中を樹脂から露呈させ中継
端子部を構成するとともに、一端が前記中継端子部と対
向する中継端子部を、また、他端が給電端子部をそれぞ
れ構成し、これら両端子部が露呈するように樹脂に埋設
した第３の給電ターミナルを備え、これら両給電ターミ
ナルの中継端子部に焼損防止素子の端子が直接接触する
ような焼損防止素子固定用保持部を樹脂に一体形成す
る。また、本発明によれば、給電ブラシを全体がばね性
を有する部材で形成するとともに、ロータ挿入方向に湾
曲させる。In order to achieve this object, a brush holding portion of a DC motor according to the present invention has a structure in which a pair of brush holding portions for holding a power supply brush slidably in contact with a rotor, and one end of which is a power source. Forming a terminal portion, the other end comprising at least a pair of power supply terminals forming a power supply terminal portion for supplying power to the power supply brush, and an external terminal portion for holding a power supply terminal portion of the power supply terminal; The power supply terminal and the power supply terminal are embedded in the resin such that the power supply terminal and the power supply terminal are exposed, and the power supply terminal is embedded in the resin. The power supply brush positioning means is provided so that the power supply brush contacts directly. Further, the structure of the brush holding portion in the DC motor according to the present invention is such that the middle of the power supply terminal portion of one of the power supply terminals is exposed from the resin to form a relay terminal portion, and one end of the relay terminal portion faces the relay terminal portion. And a third power supply terminal, the other end of which constitutes a power supply terminal, and a third power supply terminal buried in a resin such that both terminals are exposed. A holding portion for fixing the burnout prevention element to which the terminals are in direct contact is integrally formed with the resin. Further, according to the present invention, the power supply brush is formed entirely of a member having spring properties and is curved in the rotor insertion direction.
【０００８】[0008]
【作用】本発明によれば、ブラシ保持部と外部端子部と
を樹脂で一体形成することにより、部品点数が削減され
るとともに、これらを配線プレートにかしめる工程が不
要となり、また、ブラシ保持部に、給電ターミナルの給
電端子部に給電ブラシが直接接触するような給電ブラシ
位置決め手段を設けられているので、給電ブラシをブラ
シ保持部に固定することにより、給電ブラシの給電ター
ミナルの給電端子部への電気的接続がなされる。また、
本発明によれば、焼損防止素子を焼損防止素子固定用保
持部に嵌合させることにより、焼損防止素子の固定と給
電ターミナルの中継端子部への電気的接続がなされる。
また、本発明によれば、ロータの組立時にロータが給電
ブラシに引っかかることがない。According to the present invention, the number of components is reduced by integrally forming the brush holding portion and the external terminal portion with the resin, and the step of caulking these components to the wiring plate becomes unnecessary. The power supply brush positioning means is provided so that the power supply brush is in direct contact with the power supply terminal of the power supply terminal. Therefore, by fixing the power supply brush to the brush holding portion, the power supply terminal of the power supply terminal of the power supply brush is provided. An electrical connection is made. Also,
According to the present invention, by fixing the burnout prevention element to the burnout prevention element fixing holding portion, the burnout prevention element is fixed and the power supply terminal is electrically connected to the relay terminal portion.
Further, according to the present invention, the rotor does not catch on the power supply brush when the rotor is assembled.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図に基づいて説明
する。図１は本発明に係る直流モータにおけるブラシ保
持部の組み立てた状態の構造を示し、図２は同じくブラ
シ保持部の構造を示し、図３は同じくブラシの構造を示
したものである。これらの図において、全体を符号２で
示すものは、ブラシ保持部材で、平板状の配線プレート
部３、コネクター部４および一対のブラシ保持部５、６
から構成され、これら部材が樹脂により一体形成されて
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the structure of the brush holder in the DC motor according to the present invention in an assembled state, FIG. 2 shows the structure of the brush holder, and FIG. 3 shows the structure of the brush. In these drawings, the reference numeral 2 generally designates a brush holding member, which is a flat wiring plate portion 3, a connector portion 4, and a pair of brush holding portions 5, 6.
, And these members are integrally formed of resin.
【００１０】図２に示すように、前記配線プレート部３
の中央に、一部が円弧状の略方形状の穴８が穿設されて
いるとともに、穴８の一辺には、溝１０が形成された断
面コ字状の焼損防止素子固定用保持部９が一体形成され
ている。コネクター部４には、給電側のソケット（図示
を省略）が嵌合する凹嵌部１２が形成されている。１
３、１４は給電ターミナルで、それぞれの一端１５、１
７が凹嵌部１２から露呈して電源端子部を構成し、ま
た、給電ターミナル１３の他端１６はブラシ保持部５か
ら上方に露呈して給電端子部を構成し、給電ターミナル
１４の他端１８は配線プレート部３から焼損防止素子固
定用保持部９に向かって露呈して中継端子部を構成する
ようにして、ブラシ保持部材２内にインサート成形によ
り埋設されている。As shown in FIG. 2, the wiring plate 3
At the center of the hole, a substantially arc-shaped hole 8 having a part of an arc is formed. Are integrally formed. The connector portion 4 is formed with a concave fitting portion 12 into which a power supply side socket (not shown) fits. 1
Reference numerals 3 and 14 denote power supply terminals, one ends of which are 15, 1 respectively.
7 is exposed from the recessed portion 12 to form a power supply terminal portion. The other end 16 of the power supply terminal 13 is exposed upward from the brush holding portion 5 to form a power supply terminal portion. Reference numeral 18 is embedded in the brush holding member 2 by insert molding so as to be exposed from the wiring plate portion 3 toward the burnout prevention element fixing holding portion 9 to constitute a relay terminal portion.
【００１１】２０は第３の給電ターミナルで、一端２１
がブラシ保持部６から上方に露呈して給電端子部を構成
し、他端２２が配線プレート部３から前記中継端子部１
８と対向するようにして、この中継端子部１８とともに
焼損防止素子固定用保持部９を挟むようにして、露呈し
て中継端子部を構成して、ブラシ保持部材２内にインサ
ート成形により埋設されている。前記ブラシ保持部５、
６のそれぞれの上面５ａ、６ａは、同じ高さに形成さ
れ、後述する板ばねブラシ３０の取付面を形成してい
る。この取付面５ａ、６ａの中央部には、めくら穴２
３、２５が、凹設され、上面の両側部には、一対のダボ
２４、２６が突設されており、Reference numeral 20 denotes a third power supply terminal, one end of which 21
Is exposed upward from the brush holding portion 6 to form a power supply terminal portion, and the other end 22 is connected from the wiring plate portion 3 to the relay terminal portion 1.
8, the relay terminal 18 is exposed and constitutes the relay terminal so as to sandwich the burnout preventing element fixing holding part 9 together with the relay terminal 18, and is embedded in the brush holding member 2 by insert molding. . The brush holder 5,
Each of the upper surfaces 5a and 6a of 6 is formed at the same height, and forms a mounting surface of a leaf spring brush 30 described later. A blind hole 2 is provided at the center of the mounting surfaces 5a and 6a.
3 and 25 are recessed, and a pair of dowels 24 and 26 are protrudingly provided on both sides of the upper surface.
【００１２】図３における３０は全体が薄板状のばね性
部材で形成された板ばね状の給電ブラシで、基部の略中
央には、穴３１が穿設され、両側縁には、一対の半円状
の切欠き３２が設けられており、一方の側縁には、被給
電端子部３３が立設されている。給電ブラシ３０の先端
側は、舌片３４が突出形成され、この舌片３４は湾曲状
に折曲げられて、垂直線に対して角度α立ち上げられて
いる。また、舌片３４の先端側両側縁は、舌片３４の裏
面側で互いに向き合うように折り返され、平面視くの字
状の押え片３５が形成されている。In FIG. 3, reference numeral 30 denotes a leaf-spring-like power supply brush formed entirely of a thin-plate-like spring member. A hole 31 is formed substantially at the center of the base, and a pair of half-holes are formed at both side edges. A circular notch 32 is provided, and a power-supplied terminal portion 33 is provided upright on one side edge. A tongue 34 protrudes from the tip side of the power supply brush 30, and the tongue 34 is bent in a curved shape and rises at an angle α with respect to a vertical line. Further, both side edges on the distal end side of the tongue piece 34 are folded back to face each other on the back side of the tongue piece 34 to form a pressing piece 35 shaped like a letter in plan view.
【００１３】３６はカーボンブラシで、ブロック状に形
成され、表面には、舌片３４の立ち上がりと同じ方向に
傾斜したテーパ面３６ａが設けられており、裏面には、
凸部３６ｂが突出形成されている。このカーボンブラシ
３６は、凸部３６ｂが舌片３４の先端に穿設した穴（図
示を省略）に圧入され、押え片３５で挟持されることに
より、舌片３４の先端に固定される。図１において、３
８は偏平状に形成された焼損防止素子で、下端両側部に
下方に突出した一対の端子３９が設けられている。４０
は略円筒状に形成されたロータで、前記ブラシ保持部
５、６の取付面５ａ、６ａ側から配線プレート部３の穴
８内に矢印ｅ方向に挿入され、図示を省略した軸受部に
より回転自在に軸支されている。Reference numeral 36 denotes a carbon brush, which is formed in a block shape, and has a tapered surface 36a inclined on the front surface in the same direction as the rising of the tongue piece 34, and a back surface provided with a tapered surface 36a.
The protrusion 36b is formed to protrude. The carbon brush 36 is fixed to the tip of the tongue piece 34 by being pressed into a hole (not shown) in which the protrusion 36 b is drilled at the tip of the tongue piece 34, and held by the holding piece 35. In FIG. 1, 3
Reference numeral 8 denotes a burnout prevention element formed in a flat shape, and a pair of terminals 39 protruding downward is provided on both sides of the lower end. 40
Is a rotor formed in a substantially cylindrical shape, which is inserted into the hole 8 of the wiring plate portion 3 in the direction of arrow e from the mounting surfaces 5a, 6a of the brush holding portions 5, 6, and is rotated by a bearing portion not shown. It is freely supported.
【００１４】次に、このように構成された直流モータに
おけるブラシ保持部の組立方法を説明する。一対の給電
ブラシ３０を、舌片３４の湾曲方向がロータ４０の挿入
方向ｅに合致するようにして、それぞれの切欠き３２を
ブラシ保持部５、６のダボ２４、２６に位置決めさせ
て、ねじ３７を給電ブラシ３０の穴３１に挿通させてめ
くら穴２３、２５にねじ込むことにより、給電ブラシ３
０をブラシ保持部５、６の取付面５ａ、６ａに取り付け
る。このように取り付けられた給電ブラシ３０は、ダボ
２４、２６に位置決めされて、それぞれの被給電端子部
３３、３３が、給電ターミナル１３、２０の給電端子部
１６、２１に当接して電気的接続がなされる。（図１
中、便宜上、格子縞で表示）Next, a method of assembling the brush holding portion in the DC motor configured as described above will be described. The pair of power supply brushes 30 are positioned such that the bending direction of the tongue piece 34 matches the insertion direction e of the rotor 40, and the respective notches 32 are positioned in the dowels 24 and 26 of the brush holding portions 5 and 6. 37 is inserted into the hole 31 of the power supply brush 30 and screwed into the blind holes 23 and 25, whereby the power supply brush 3
0 is attached to the attachment surfaces 5a, 6a of the brush holding parts 5, 6. The power supply brush 30 attached in this manner is positioned on the dowels 24, 26, and the respective power-supplied terminal portions 33, 33 abut against the power-supply terminal portions 16, 21 of the power-supply terminals 13, 20, and are electrically connected. Is made. (Figure 1
(Indicated as plaid for convenience.)
【００１５】次に、焼損防止素子３８を、その端子３９
側から矢印ｅ方向に焼損防止素子固定保持部９の溝１０
内に挿入して、嵌合固定する。このように固定された焼
損防止素子３８の端子３９は、焼損防止素子固定保持部
９を挟むように対向配置された給電ターミナル１４、２
０の中継端子部１８、２２に当接して電気的接続がなさ
れ、溶接で接合される。（図１中、便宜上、格子縞で表
示）このように、給電ブラシ３０と給電ターミナル１
３、２０および焼損防止素子３８と給電ターミナル１
４、２０との電気的接続が、給電ブラシ３０と焼損防止
素子３８のブラシ保持部材２への固定と同時に行われる
ようにしたので、従来のようにリード線等を介してのは
んだ付け等による結線が不要となり、このため、組立作
業が容易となる。Next, the burnout preventing element 38 is connected to its terminal 39.
Groove 10 of the burnout prevention element fixing and holding portion 9 in the direction of arrow e from the side
Insert and fix. The terminal 39 of the burnout prevention element 38 fixed in this way is connected to the power supply terminals 14, 2, 2
No. 0 relay terminal portions 18 and 22 are electrically connected to each other, and are joined by welding. (In FIG. 1, for convenience, indicated by a grid pattern.) Thus, the power supply brush 30 and the power supply terminal 1
3, 20 and burnout prevention element 38 and power supply terminal 1
Since the electrical connection between the power supply brushes 4 and 20 is made at the same time as the fixing of the power supply brush 30 and the burnout prevention element 38 to the brush holding member 2, soldering or the like via a lead wire or the like as in the related art is performed. No connection is required, which facilitates the assembling work.
【００１６】最後に、ロータ４０を矢印ｅ方向に沿って
配線プレート３の穴８内に挿入する。このとき、ブラシ
保持部５、６の取付面５ａ、６ａがロータ４０の挿入す
る側に位置し、ブラシ３０の舌片３４の湾曲方向がロー
タ４０の挿入する方向ｅに合致しているので、ロータ４
０は、舌片３４に引っかかることがなく、舌片３４を撓
ませながら、カーボンブラシ３６のテーパ面３６ａに沿
って、円滑に挿入される。また、舌片３４がばね性を有
する部材で形成され、湾曲状に形成されているので、カ
ーボンブラシ３６のロータ４０周面への押圧力が一定に
保持され、良好な接触圧が得られて、接触不良の発生が
防止される。Finally, the rotor 40 is inserted into the hole 8 of the wiring plate 3 along the direction of arrow e. At this time, the mounting surfaces 5a and 6a of the brush holding portions 5 and 6 are located on the side where the rotor 40 is inserted, and the bending direction of the tongue piece 34 of the brush 30 matches the direction e where the rotor 40 is inserted. Rotor 4
No. 0 is smoothly inserted along the tapered surface 36a of the carbon brush 36 while bending the tongue piece 34 without being caught by the tongue piece 34. Further, since the tongue piece 34 is formed of a member having spring properties and is formed in a curved shape, the pressing force of the carbon brush 36 against the peripheral surface of the rotor 40 is kept constant, and a good contact pressure is obtained. The occurrence of poor contact is prevented.
【００１７】なお、本実施例では、焼損防止素子３８を
用いて、第３の給電ターミナル２０を用いた例を示した
が、焼損防止素子３８が不要であれば、第３の給電ター
ミナル２０を用いずに、給電ターミナル１４の中継端子
部１８を配線プレート３内を延設して、第３の給電ター
ミナル２０の給電端子部２１の替わりとしてもよいこと
は勿論である。In this embodiment, an example is shown in which the third power supply terminal 20 is used by using the burnout prevention element 38. However, if the burnout prevention element 38 is not required, the third power supply terminal 20 may be used. It is needless to say that the relay terminal 18 of the power supply terminal 14 may be extended in the wiring plate 3 instead of using the power supply terminal 21 of the third power supply terminal 20.
【００１８】[0018]
【発明の効果】以上説明したように本発明によれば、ブ
ラシ保持部と外部端子部とを樹脂で一体形成したので、
部品点数が削減されてコストが低減され、また一体化し
てユニット化したことにより小型化が可能となるととも
に、かしめ等の組立工数が不要となり、組立も容易とな
る。また、給電ターミナルを電源端子部と給電端子部と
が露呈するようにして樹脂に埋設し、ブラシ保持部に、
給電ターミナルの給電端子部に給電ブラシが直接接触す
るような給電ブラシ位置決め手段を設けたので、給電ブ
ラシをブラシ保持部に固定すると同時に、給電ブラシと
給電ターミナルとの電気的接続がなされ、このため、リ
ード線等による結線作業が不要となり、組立性が向上す
る。As described above, according to the present invention, since the brush holding portion and the external terminal portion are integrally formed of resin,
The number of parts is reduced and the cost is reduced. In addition, since the unit is integrated into a unit, the size can be reduced, and the number of assembling steps such as caulking becomes unnecessary, and the assembling becomes easy. In addition, the power supply terminal is embedded in the resin so that the power supply terminal portion and the power supply terminal portion are exposed, and the brush holding portion includes:
Since the power supply brush positioning means is provided such that the power supply brush is in direct contact with the power supply terminal of the power supply terminal, the power supply brush is fixed to the brush holding unit, and at the same time, the power supply brush is electrically connected to the power supply terminal. In addition, there is no need to perform a connection operation using a lead wire or the like, and assemblability is improved.
【００１９】また、本発明によれば、一方の給電ターミ
ナルの給電端子部の途中を樹脂から露呈させ中継端子部
を構成するとともに、一端が前記中継端子部と対向する
中継端子部を、また、他端が給電端子部をそれぞれ構成
し、これら両端子部が露呈するように樹脂に埋設した第
３の給電ターミナルを備え、これら両給電ターミナルの
中継端子部に焼損防止素子の端子が直接接触するような
焼損防止素子固定用保持部を樹脂に一体形成したので、
焼損防止素子を焼損防止素子固定用保持部に固定する
と、焼損防止素子と給電ターミナルとの電気的接続がな
され、このため、リード線等による結線作業が不要とな
り、組立性が向上する。Further, according to the present invention, a relay terminal portion is formed by exposing a part of the power supply terminal portion of the one power supply terminal from the resin, and the relay terminal portion having one end facing the relay terminal portion; The other end constitutes a power supply terminal portion, and a third power supply terminal embedded in resin so that both terminal portions are exposed is provided, and terminals of the burnout prevention element directly contact relay terminal portions of both power supply terminals. Since such a burnout prevention element fixing holding part is formed integrally with the resin,
When the burnout prevention element is fixed to the burnout prevention element fixing holding portion, the burnout prevention element is electrically connected to the power supply terminal, so that the connection work with a lead wire or the like becomes unnecessary, and the assembling property is improved.
【００２０】また、本発明によれば、給電ブラシを全体
がばね性を有する部材で形成するとともに、ロータ挿入
方向に湾曲させたので、ロータの挿入時に給電ブラシに
引っかかることがなく、円滑に挿入されるとともに、給
電ブラシのロータ周面への押圧力が一定に保持され、良
好な接触圧が得られて、接触不良の発生が防止される。Further, according to the present invention, since the power supply brush is formed entirely of a member having spring properties and is curved in the rotor insertion direction, the power supply brush can be smoothly inserted without being caught by the power supply brush when the rotor is inserted. At the same time, the pressing force of the power supply brush against the rotor peripheral surface is kept constant, a good contact pressure is obtained, and the occurrence of poor contact is prevented.
【図１】本発明に係る直流モータにおけるブラシ保持部
の組み立てた状態の構造を示し、（Ａ）は正面図、
（Ｂ）は側面図、（Ｃ）は背面図、（Ｄ）は（Ａ）にお
けるＩＤ−ＩＤ線断面図である。FIGS. 1A and 1B show a structure of a DC motor according to the present invention in an assembled state of a brush holding unit, FIG.
(B) is a side view, (C) is a rear view, and (D) is a cross-sectional view taken along the line ID-ID in (A).
【図２】本発明に係る直流モータにおけるブラシ保持部
の構造を示し、（Ａ）は正面図、（Ｂ）は（Ａ）におけ
るＩＩＢ−ＩＩＢ線断面図、（Ｃ）はＩＩＣ−ＩＩＣ線
断面図である。FIGS. 2A and 2B show the structure of a brush holding portion in the DC motor according to the present invention, wherein FIG. 2A is a front view, FIG. 2B is a cross-sectional view taken along line IIB-IIB in FIG. FIG.
【図３】本発明に係る直流モータの給電ブラシの構造を
示し、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は
（Ｂ）におけるＩＩＩＣ−ＩＩＩＣ線断面図である。3A and 3B show a structure of a power supply brush of the DC motor according to the present invention, wherein FIG. 3A is a front view, FIG. 3B is a side view, and FIG. 3C is a sectional view taken along line IIIC-IIIC in FIG.
【図４】従来の直流モータにおけるブラシ保持部の構造
を示し、（Ａ）は正面図、（Ｂ）は側面図、（Ｃ）は
（Ａ）におけるＩＶＣ−ＩＶＣ線断面図である。4A and 4B show a structure of a brush holding portion in a conventional DC motor, wherein FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a cross-sectional view taken along line IVC-IVC in FIG.
【図５】従来の直流モータにおけるコネクター部の組立
状態を示し、（Ａ）は正面図、（Ｂ）は側面図である。5A and 5B show an assembled state of a connector portion in a conventional DC motor, wherein FIG. 5A is a front view and FIG. 5B is a side view.
２ ブラシ保持部材 ３ 配線プレート部 ４ コネクター部 ５、６ ブラシ保持部 ５ａ、６ａ 取付面 ９ 焼損防止素子固定用保持部 １３、１４ 給電ターミナル １５、１７ 電源端子部 １６、２１ 給電端子部 １８、２２ 中継端子部 ２０ 第３の給電ターミナル ２３、２５ めくら穴 ２４、２６ ダボ ３０ 給電ブラシ ３１ 穴 ３２ 切欠き ３３ 被給電端子部 ３４ 舌片 ３６ カーボンブラシ ３８ 焼損防止素子 ３９ 端子 ４０ ロータ Reference Signs List 2 brush holding member 3 wiring plate portion 4 connector portion 5, 6 brush holding portion 5a, 6a mounting surface 9 holding portion for burning prevention element fixing 13, 14 power supply terminal 15, 17 power supply terminal portion 16, 21 power supply terminal portion 18, 22 Relay terminal part 20 Third power supply terminal 23, 25 Blind hole 24, 26 Dowel 30 Power supply brush 31 Hole 32 Notch 33 Power-supplied terminal part 34 Tongue piece 36 Carbon brush 38 Burnout prevention element 39 Terminal 40 Rotor
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭56−38553（ＪＰ，Ｕ) 実開 平１−82650（ＪＰ，Ｕ) 実開 平３−60869（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 56-38553 (JP, U) JP-A 1-82650 (JP, U) JP-A 3-60869 (JP, U)
Claims (3)
一対のブラシ保持部と、一端が電源端子部を構成し、他
端が前記給電ブラシに給電する給電端子部を構成する少
なくとも一対の給電ターミナルと、この給電ターミナル
の電源端子部を保持する外部端子部とを備え、前記ブラ
シ保持部と外部端子部とを樹脂で一体形成するととも
に、前記給電ターミナルを電源端子部と給電端子部とが
露呈するようにして樹脂に埋設し、前記ブラシ保持部
に、給電ターミナルの給電端子部に給電ブラシが直接接
触するような給電ブラシ位置決め手段を設けたことを特
徴とする直流モータにおけるブラシ保持部の構造。1. A pair of brush holding portions for holding a power supply brush slidably in contact with a rotor, and at least one pair of power supply terminals having one end constituting a power supply terminal portion and the other end constituting a power supply terminal portion supplying power to the power supply brush. And an external terminal portion for holding a power supply terminal portion of the power supply terminal. The brush holding portion and the external terminal portion are integrally formed of resin, and the power supply terminal is exposed to the power supply terminal portion and the power supply terminal portion. A brush holding portion in a DC motor, wherein the brush holding portion is provided with a power supply brush positioning means so that the power supply brush directly contacts the power supply terminal portion of the power supply terminal. .
記一方の給電ターミナルの給電端子部の途中を樹脂から
露呈させ中継端子部を構成するとともに、一端が前記中
継端子部と対向する中継端子部を、また、他端が給電端
子部をそれぞれ構成し、これら両端子部が露呈するよう
に樹脂に埋設した第３の給電ターミナルを備え、これら
両給電ターミナルの中継端子部に焼損防止素子の端子が
直接接触するような焼損防止素子固定用保持部を樹脂に
一体形成したことを特徴とする直流モータにおけるブラ
シ保持部の構造。2. The relay terminal according to claim 1, wherein a part of the power supply terminal of the one power supply terminal is exposed from a resin to form a relay terminal, and one end of the power supply terminal faces the relay terminal. And a third power supply terminal having the other end constituting a power supply terminal portion, and both terminals being embedded in a resin so as to be exposed, and a relay terminal portion of each of the power supply terminals being provided with a terminal of a burnout prevention element. A structure for a brush holding portion in a DC motor, wherein a holding portion for fixing a burnout prevention element which makes direct contact with the resin is formed integrally with the resin.
記給電ブラシを全体がばね性を有する部材で形成すると
ともに、ロータ挿入方向に湾曲させたことを特徴とする
直流モータにおけるブラシ保持部の構造。3. The DC motor according to claim 1, wherein the power supply brush is formed entirely of a member having spring properties and is curved in a rotor insertion direction. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6012052A JP2613845B2 (en) | 1994-01-10 | 1994-01-10 | Structure of brush holder in DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6012052A JP2613845B2 (en) | 1994-01-10 | 1994-01-10 | Structure of brush holder in DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07203662A JPH07203662A (en) | 1995-08-04 |
| JP2613845B2 true JP2613845B2 (en) | 1997-05-28 |
Family
ID=11794837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6012052A Expired - Fee Related JP2613845B2 (en) | 1994-01-10 | 1994-01-10 | Structure of brush holder in DC motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613845B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4890297B2 (en) * | 2007-02-28 | 2012-03-07 | アスモ株式会社 | Brush holder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638553U (en) * | 1979-08-29 | 1981-04-11 | ||
| JPH0182650U (en) * | 1987-11-20 | 1989-06-01 | ||
| JP3060869U (en) * | 1999-01-18 | 1999-09-07 | 宏 大高 | Newspaper bin |
-
1994
- 1994-01-10 JP JP6012052A patent/JP2613845B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07203662A (en) | 1995-08-04 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |