Claims
- 1. Starting motor apparatus comprising:a pinion for transmitting rotation of said motor to an engine shaft; and a motor circuit for driving said motor; wherein said motor circuit includes a circuit disconnecting member that disconnects said motor circuit in response to absorption of radiant heat generated by said motor circuit, at a temperature lower than a thermal breakdown temperature of a combustible substance around said motor circuit.
- 2. Starting motor apparatus comprising:a motor; a pinion for transmitting rotation of said motor to an engine shaft; a motor circuit for driving said motor; and a circuit disconnecting member that disconnects said motor circuit in response to absorption of radiant heat generated by said motor circuit; wherein said circuit disconnecting member is connected to said motor circuit and disconnects said motor circuit at a temperature lower than a thermal breakdown temperature of a combustible material around said motor circuit.
- 3. The starting motor apparatus according to claim 1, wherein said circuit disconnecting member is installed in a battery cable receiving radiant heat generated by heat generation of the motor circuit.
- 4. The starting motor apparatus according to claim 1, wherein said circuit disconnecting member is installed in a key switch circuit receiving radiant heat generated by heat generation of the motor circuit.
- 5. Starting motor apparatus comprising:a motor; a pinion for transmitting rotation of said motor to an engine shaft; a motor circuit for driving said motor; and an electromagnetic switch having a contact for opening and closing energization to said motor; wherein a member for connecting a terminal of said contact to said motor circuit includes a circuit disconnecting member that disconnects said motor circuit in response to absorption of radiant heat generated by said motor circuit, at a temperature lower than a thermal breakdown temperature of a combustible substance around said motor circuit.
- 6. Starting motor apparatus comprising:a motor rotated by energization from a battery; a pinion to which rotation of said motor is transmitted; a shift lever for moving said pinion toward a ring gear of an engine; an electromagnetic switch having a coil for inducing an electromagnetic force; an axially slidable plunge and a contact for opening said closing energization to said motor; and a circuit disconnecting member which is connected into the motor circuit, and disconnects said motor circuit in response to absorption of radiant heat generated by said motor circuit, at a temperature lower than a thermal breakdown temperature of a combustible substance around said motor circuit.
- 7. The starting motor according to claim 5, wherein a member for connecting a terminal of said contact to the motor circuit is connected to a part of said motor circuit, by riveting or hole flanging.
- 8. The starting motor according to claim 5, wherein a member for connecting a terminal of said contact to the motor circuit is connected to a part of said motor circuit using an ultrasonic wave connecting method.
- 9. A protective device for preventing thermal breakdown of an electric motor, comprising:a motor circuit for supplying electric current to drive said motor; and a circuit disconnecting member included in said motor circuit for interrupting the supply of electric current to the motor; wherein the circuit disconnecting member is made of a material that melts in response to absorption of radiant heat impinging on a surface thereof; and said circuit disconnecting member is mounted externally adjacent said motor, whereby radiant heat generated by said motor is absorbed by said circuit disconnecting member.
Priority Claims (1)
Number |
Date |
Country |
Kind |
10-274616 |
Sep 1998 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. application Ser. No. 09/787,719 filed on Mar. 22, 2001 which is the national stage of PCT/JP99/05352 filed Sep. 29, 1999.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
174760 |
Nov 1982 |
JP |
09273464 |
Oct 1997 |
JP |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/787719 |
|
US |
Child |
09/824571 |
|
US |