JPS6125337Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は小型モータに関し、特に、ブラシホル
ダーにおけるリード線の保持の確実なものを提供
するにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small motor, and in particular, to provide a brush holder that can securely hold lead wires.

以下、本考案を図面に示した一実施例に基づい
て説明すると、１は底部１ａに膨出部１ｂを有す
るコツプ状のカバー、２はカバー１の開放端を塞
ぐ蓋板、３は蓋板２に固着された軸受、４はカバ
ー１内の底部１ａに取付けられた磁石、５は軸６
上にモールドによつて形成された整流子、７は複
数個のコイル８を埋設したロータ、９はロータ７
の一面に取付けられた鉄等の磁性板、１０はロー
タ７の他面に取付けられたバリスタで、該バリス
タと磁性板９を取付けたロータ７は軸６に挿入さ
れ、整流子５とバリスタ１０とを半田付けること
により軸６上に取付けられる。 Hereinafter, the present invention will be explained based on an embodiment shown in the drawings. 1 is a pot-shaped cover having a bulging portion 1b at the bottom 1a, 2 is a lid plate that closes the open end of the cover 1, and 3 is a lid plate. 2 is a fixed bearing, 4 is a magnet attached to the bottom 1a inside the cover 1, and 5 is a shaft 6.
A commutator is formed on the top by a mold, 7 is a rotor in which a plurality of coils 8 are embedded, 9 is a rotor 7
A magnetic plate made of iron or the like is attached to one side, and a varistor 10 is attached to the other side of the rotor 7. The rotor 7 with the varistor and magnetic plate 9 attached is inserted into the shaft 6, and the commutator 5 and the varistor 10 are attached. It is mounted on the shaft 6 by soldering.

１１は絶縁物の成形品から成る円形状のブラシ
ホルダーで、一面にはカバー１の膨出部１ｂに設
けた三角状の孔１ｃに合致する三角状の突部１１
ａを、また、他面にはブラシ保持１２を支持する
ための凸部１１ｂ、ブラシ１３を収納するための
凹部１１ｃ、外周に沿つて形成した外壁１１ｄ、
この外壁１１ｄに対向して形成された内壁１１
ｅ、外壁１１ｄの内壁側上縁に形成した突条１１
ｉ、外壁１１ｄと内壁１１ｅとの間に形成された
円弧状の溝１１ｆを有すると共に、外壁１１ｄに
は掛け止め用窓部１１ｇを設けている。 Reference numeral 11 denotes a circular brush holder made of a molded insulating material, and one side thereof has a triangular protrusion 11 that matches the triangular hole 1c provided in the bulging portion 1b of the cover 1.
a, and on the other side, a convex portion 11b for supporting the brush holder 12, a concave portion 11c for accommodating the brush 13, an outer wall 11d formed along the outer periphery,
Inner wall 11 formed opposite to this outer wall 11d
e, protrusion 11 formed on the upper edge of the inner wall side of the outer wall 11d
i. It has an arc-shaped groove 11f formed between the outer wall 11d and the inner wall 11e, and the outer wall 11d is provided with a hanging window 11g.

そして、防振材１４を取付けたブラシ１３がブ
ラシ保持板１２の折曲部１２ａにスポツト溶接等
によつて固着され、ブラシ１３をブラシホルダー
１１の凹部１１ｃに位置させてブラシ保持板１２
の基部１２ｂを凸部１１ｂ上に載置し、ブラシホ
ルダー１１に設けた突起１１ｈをブラシ保持板１
２の基部１２ｂに設けた孔（図示せず）に挿入
後、突起１１ｈの先端を熱等によつて変形するこ
とによつてブラシ保持板１２をブラシホルダー１
１に固着し、更に、一対のリード線１５が外壁１
１ｄと内壁１１ｅとの間に形成された溝１１ｆに
嵌入されて、外壁１１ｄと内壁１１ｅとの間で挾
持されると共に、突条１１ｉで抜け止めし、窓部
１１ｇを通して外方に導出され、且つ、一対のリ
ード線１５の一端はブラシ保持板１２の基部１２
ｂに半田付けにより接続する。 Then, the brush 13 with the vibration isolating material 14 attached is fixed to the bent part 12a of the brush holding plate 12 by spot welding or the like, and the brush 13 is positioned in the recessed part 11c of the brush holder 11, and the brush holding plate 12 is fixed.
The base 12b of the brush holder 11 is placed on the protrusion 11b, and the protrusion 11h provided on the brush holder 11 is placed on the brush holding plate 1.
After inserting the brush holding plate 12 into a hole (not shown) provided in the base 12b of the brush holder 1, the tip of the protrusion 11h is deformed by heat or the like.
Further, a pair of lead wires 15 are fixed to the outer wall 1.
It is fitted into a groove 11f formed between the outer wall 1d and the inner wall 11e, is held between the outer wall 11d and the inner wall 11e, is prevented from coming off by the protrusion 11i, and is led out through the window 11g, In addition, one end of the pair of lead wires 15 is connected to the base 12 of the brush holding plate 12.
Connect to b by soldering.

このようにして組立てられたブラシホルダー１
１は、先づ、カバー１内に位置させ、リード線１
５をカバー１の膨出部１ｂに設けた小孔１ｄから
外方に導出し、また、三角状の突部１１ａをカバ
ー１の三角状の孔１ｃに嵌入して一部を外方に突
出させ、この突部１１ａを熱等によつて変形して
ブラシホルダー１１をカバー１に固着し、その結
果、ブラシホルダー１１は膨出部１ｂ内に収納さ
れた状態になる。 Brush holder 1 assembled in this way
1 is first positioned inside the cover 1, and the lead wire 1 is placed inside the cover 1.
5 to the outside through the small hole 1d provided in the bulging portion 1b of the cover 1, and the triangular protrusion 11a is fitted into the triangular hole 1c of the cover 1 to partially protrude outward. Then, the protrusion 11a is deformed by heat or the like to fix the brush holder 11 to the cover 1, and as a result, the brush holder 11 is housed in the bulge 1b.

また、ブラシホルダー１１に取付けられたブラ
シ１３は整流子５に接触し、更に、磁石４により
磁性板９が吸引されているため、軸６の一端はブ
ラシホルダー１１の底部に当接した状態となる。 Further, the brush 13 attached to the brush holder 11 is in contact with the commutator 5, and since the magnetic plate 9 is attracted by the magnet 4, one end of the shaft 6 is in contact with the bottom of the brush holder 11. Become.

即ち、本考案によれば、ブラシ１３を取付けた
ブラシホルダー１１には外壁１１ｄと、これに対
向した内壁１１ｅ、外壁１１ｄの内壁側上縁に形
成した突条１１ｉ、外壁１１ｄと内壁１１ｅとの
間に溝１１ｆを設けると共に外壁１１ｄには掛け
止用窓部１１ｇを設け、リード線１５を溝１１ｆ
に嵌入して外壁１１ｄと内壁１１ｅとで挾持する
と共に、突条１１ｉで抜け止めし、リード線１５
を窓部１１ｇに掛け止めした状態で外方に導出す
るようにしたものであるからリード線１５に引張
り力が加わつても、窓部１１ｇによつて係止され
ると共に、外壁１１ｄと内壁１１ｅとで抑えられ
てブラシ保持板１２との接続部まで引張り力が及
ぼす、また、突条１１ｉで抜け止めされ、その保
持が確実となり、断線のないものを提供し得ると
いう効果を奏する。 That is, according to the present invention, the brush holder 11 to which the brush 13 is attached has an outer wall 11d, an inner wall 11e opposite thereto, a protrusion 11i formed on the upper edge of the outer wall 11d on the inner wall side, and a structure between the outer wall 11d and the inner wall 11e. A groove 11f is provided between them, and a hanging window 11g is provided on the outer wall 11d, and the lead wire 15 is inserted into the groove 11f.
The lead wire 15 is inserted into the outer wall 11d and the inner wall 11e, and is prevented from coming off by the protrusion 11i.
Since the lead wire 15 is latched to the window 11g and led out, even if a tensile force is applied to the lead wire 15, it is latched by the window 11g, and the outer wall 11d and inner wall 11e are This has the effect that the tensile force is exerted to the connection part with the brush holding plate 12, and is prevented from coming off by the protrusions 11i, so that the holding is reliable and there is no disconnection.

【図面の簡単な説明】[Brief explanation of the drawing]

何れも本考案の小型モータを示し、第１図は平
面図、第２図は要部断面図、第３図はブラシホル
ダーとカバーの斜視図、第４図はブラシホルダー
の斜視図である。 １……カバー、１ａ……底部、１ｂ……膨出
部、１ｃ……孔、１ｄ……小孔、２……蓋板、３
……軸受、４……磁石、５……整流子、６……
軸、７……ロータ、８……コイル、９……磁性
板、１０……バリスタ、１１……ブラシホルダ
ー、１１ａ……突部、１１ｂ……凸部、１１ｃ…
…凹部、１１ｄ……外壁、１１ｅ……内壁、１１
ｆ……溝、１１ｇ……窓部、１１ｈ……突起、１
２……ブラシ保持板、１２ａ……折曲部、１２ｂ
……基部、１３……ブラシ、１４……防振材、１
５……リード線。 1 is a plan view, FIG. 2 is a sectional view of essential parts, FIG. 3 is a perspective view of a brush holder and cover, and FIG. 4 is a perspective view of the brush holder. DESCRIPTION OF SYMBOLS 1... Cover, 1a... Bottom, 1b... Swelling part, 1c... Hole, 1d... Small hole, 2... Lid plate, 3
... Bearing, 4 ... Magnet, 5 ... Commutator, 6 ...
Shaft, 7...Rotor, 8...Coil, 9...Magnetic plate, 10...Varistor, 11...Brush holder, 11a...Protrusion, 11b...Protrusion, 11c...
...recess, 11d...outer wall, 11e...inner wall, 11
f...Groove, 11g...Window, 11h...Protrusion, 1
2...Brush holding plate, 12a...Bending portion, 12b
... Base, 13 ... Brush, 14 ... Vibration isolating material, 1
5... Lead wire.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ブラシを取付けた絶縁物から成るブラシホルダ
ーに対向して形成した外壁と内壁と、この外壁の
内壁側上縁に形成した突条と、外壁と内壁との間
に形成した溝と、外壁に設けた窓部とを備え、リ
ード線を溝に嵌入して外壁と内壁との間で挾持す
ると共に突条で抜け止めし、窓部に掛け止めした
状態で外方に導出させたことを特徴とする小型モ
ータ。 An outer wall and an inner wall formed opposite to a brush holder made of an insulating material to which a brush is attached, a protrusion formed on the upper edge of the inner wall side of the outer wall, a groove formed between the outer wall and the inner wall, and a groove formed on the outer wall. The lead wire is fitted into the groove and held between the outer wall and the inner wall, and is prevented from coming off by a protrusion, and is led out to the outside while being latched to the window. small motor.