Brush device for rotary electric machine

• US 5,099,163 A
• Filed: 12/21/1990
• Issued: 03/24/1992
• Est. Priority Date: 01/08/1990
• Status: Expired due to Term

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Zenmei, Keisaku
• Primary Examiner(s): Skudy, R.
• Application Number:
  US07/631,315
• Time in Patent Office: 459 Days
• Field of Search: 310/43, 310/71, 310/89, 310/239, 310/241, 310/242, 310/245, 310/246, 310/247, 310/248, 310/249, 310/91
• US Class Current: 310/239
• CPC Class Codes: H01R 39/36 Connections of cable or wire to brush
• CPC Class Codes: H01R 39/38 Brush holders
• CPC Class Codes: H02K 5/148 Slidably supported brushes

Abstract

A brush device for rotary electric machine is comprised of an outer frame, a plurality of brush holding member for accommodating brushes, a first support member for supporting a connecting plate and a second support member for supporting a grommet. In the device, each of the brush holding member has a bottom portion which is provided integrally with the outer frame. Further, the first support member and the second support member are provided integrally with the outer frame.

Claims

1. A brush device for a rotary electric machine, comprising:

an outer frame;

a plurality of brush holding means for accommodating brushes, said brushes each having one of a first polarity and a second polarity and being electrically connected to respective lead wires passing through said brush holding means;

a first support member for supporting a connecting plate which is connected to the first polarity of said brushes through said lead wires; and

a second support member for supporting a grommet which is connected to the second polarity of said brushes through said lead wires;

wherein each of said brush holding means has a bottom portion which is provided integrally with said outer frame, and said first support member and said second support member are provided integrally with said outer frame.

2. The brush device according to claim 1, wherein each of said brush holding means accommodates said brushes and brush springs, said brush springs being adapted to urge said brushes against a commutator.

3. The brush device according to claim 1, wherein said connecting plate is U-shaped in cross-section.

4. The brush device according to claim 1, wherein said second support member is formed by a notch provided to said outer frame 12a, said notch being provided to an opposite portion to said first support member.