JPS62191362U

JPS62191362U -

Info

Publication number: JPS62191362U
Application number: JP7691486U
Authority: JP
Priority date: 1986-05-23
Filing date: 1986-05-23
Publication date: 1987-12-05

Description

[Brief explanation of the drawing]

第１図は本考案実施例の一部断面正面図、第２
図ａは巻線型誘導電動機の回路構成を示す回路図
、第２図ｂは従来の複数ブラシホルダを一括支持
する構成を示す側面図、第２図ｃは従来ブラシホ
ルダの一部断面正面図である。ＩＭ……巻線型誘導電動機、ＳＲ……スリツプ
リング、Ｂ……スリツプリング・ブラシ、Ｒ……
二次抵抗器、Ｈ……摩耗量測定端子付きブラシホ
ルダ、Ｃ……キヤツプ、Ｓ……スプリング、Ｒｅ
……リード線、Ａ１′，Ａ２′，ＧＢ……導体、
１……第１測定端子、２……第２測定端子、３…
…透孔、４……絶縁材、５……導通端子、６……
検出用リード線、７……貫通孔、８……導体製ス
プリング、９……導通検出端子。 Fig. 1 is a partially sectional front view of the embodiment of the present invention;
Figure a is a circuit diagram showing the circuit configuration of a wire-wound induction motor, Figure 2 b is a side view showing a configuration for collectively supporting multiple conventional brush holders, and Figure 2 c is a partially sectional front view of a conventional brush holder. be. IM...wire-wound induction motor, SR...slip ring, B...slip ring brush, R...
Secondary resistor, H...Brush holder with wear measurement terminal, C...Cap, S...Spring, Re
...Lead wire, A1', A2', GB...Conductor,
1...First measurement terminal, 2...Second measurement terminal, 3...
...Through hole, 4...Insulating material, 5...Continuity terminal, 6...
Detection lead wire, 7... Through hole, 8... Conductor spring, 9... Continuity detection terminal.

Claims

[Scope of utility model registration request]

A slip ring brush is slidably built into a cylinder whose one end is closed by a screw-fitting cap and the other end is an open end, and is attached toward the open end by a spring placed on the closed side of the cylinder. The lead wire that connects the secondary current to the brush is pressed and brought into contact with the outer periphery of the rotating slip ring so that the end face of the brush whose tip portion is exposed from the open end face is pressed and brought into contact with the outer periphery of the rotating slip ring.
In a slip-ring brush holder for a wire-wound induction motor that leads to a secondary resistor via a conductor,
A first measurement terminal and a second measurement terminal are provided at the cap and at predetermined positions on the outer periphery of the brush holder adjacent to the cap, and the first measurement terminal is buried in a through hole formed in the cap via an insulating material, The tip inside the brush holder is configured to be able to come into contact with the conductor connected to the brush, and the second measurement terminal is connected to the peripheral wall of a through hole that penetrates the cylindrical wall of the brush holder from the radial direction at a position exceeding the free height of the spring. In addition to connecting the conductive terminal fitted in the hole opening with a detection lead wire, the conductive terminal is connected to the inner hole opening of the through hole via an insulator as a reaction force receiver of the conductor spring placed inside the through hole. A slip-ring brush holder with a wear measurement terminal, characterized in that the inserted continuity detection terminal is configured to be biased toward the inside of the brush holder cylinder.