Title:
BRAKE CIRCUIT FOR SINGLE PHASE SERIES COMMUTATOR MOTOR, SWITCHING METHOD AND SWITCHING MECHANISM IN BRAKE CIRCUIT
Document Type and Number:
Japanese Patent JP3540031
Kind Code:
B2
Abstract:
PURPOSE: To obtain a brake circuit for a single phase series commutator motor in which the cost is reduced while prolonging the service life.
CONSTITUTION: The brake circuit for a single phase series commutator motor comprises a main winding MW for driving an armature M, and a brake winding BW for braking the armature M wherein the armature M is driven or braked by switching the connection of the main winding MW and the brake winding BW through a single pole double throw switch SW1. In such brake circuit, a single pole switch SW2 is disposed between the brake winding BW and a common contact X of the armature M and the main winding MW. The switches SW1, SW2 isolate a high voltage appearing between the main winding MW and the brake winding BW at the time of driving the armature M and prevent field layer short thus attaining a long service life.
Inventors:
Suzuki Shigemichi
Application Number:
JP28548694A
Publication Date:
July 07, 2004
Filing Date:
November 18, 1994
Export Citation:
Assignee:
Makita Corporation
International Classes:
H02K27/04; B25F5/00; H02K27/20; H02P3/06; H02P3/22; (IPC1-7): H02K27/20; B25F5/00; H02P3/22
Domestic Patent References:
| JP62089459A | ||||
| JP5910956Y2 |
Attorney, Agent or Firm:
Tsutomu Adachi
Yashiko Mori
Yashiko Mori
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