JPS60174468U

JPS60174468U - Commutator for small DC motor

Info

Publication number: JPS60174468U
Application number: JP6170284U
Authority: JP
Inventors: 光雄一矢
Original assignee: 松下電工株式会社
Priority date: 1984-04-25
Filing date: 1984-04-25
Publication date: 1985-11-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は小型直流モータの断面図、第２図ａ。ｂはコイルユニットの説明図、第３図は従来の整流子の
断面図、第４図と第５図はそれぞれ常温時と高温時にお
ける従来の整流子の状態をあられすもので、それぞれａ
Ｃよ部分断面図、ｂは要部拡大図である。第６図はこの
考案にかかる整流子の１実例で、同図ａはその断面図、
同図すはその漂面図、同図Ｃはその左側面図、同図ｄは
その右側面図、および第７図はこの整流子をそなえた小
型直流モータの要部の断面図である。１・・・・・・小型直流モータ、３・・・・・・軸、６
・・・・・・コイルユニット、７＝・・・・・整流子、
１３・・・・・・補助線、１５・・・・・・ジャンパー
線、２０・・・・・・母材、２１・・・・・・外周側銅
層、２１′・・・・・・内周側銅層。Fig. 1 is a sectional view of a small DC motor, and Fig. 2a is a cross-sectional view of a small DC motor. b is an explanatory diagram of the coil unit, Fig. 3 is a cross-sectional view of a conventional commutator, Figs. 4 and 5 show the state of the conventional commutator at room temperature and high temperature, respectively.
C is a partial sectional view, and b is an enlarged view of the main part. Fig. 6 shows an example of the commutator according to this invention, and Fig. 6 a is its sectional view;
Figure 7 is a drifting view, Figure C is a left side view, Figure d is a right side view, and Figure 7 is a sectional view of the main parts of a small DC motor equipped with this commutator. 1... Small DC motor, 3... Shaft, 6
・・・・・・Coil unit, 7=・・・Commutator,
13...Auxiliary wire, 15...Jumper wire, 20...Base metal, 21...Outer copper layer, 21'... Inner copper layer.

Claims

[Scope of utility model registration request]

A plastic commutator having a shaft hole in the core through which a rotating shaft is inserted, and an annular copper layer formed on the outer periphery, and the peripheral wall of the shaft hole also has a copper layer on the outer periphery. A commutator for a small DC motor characterized by forming an insulated copper layer.