Claims
- 1. Method of assembling a DC solenoid with a thermistor, the steps comprising:
- connecting a thermistor having positive temperature coefficient in series with a coil;
- housing the thermistor in a case that is sufficiently resistant to pressure to substantially prevent damage to the thermistor on encapsulation of the case by injection molding material thereabout; and
- injection-molding a synthetic resin material to encapsulate and seal the case and the coil integrally while substantially preventing damage to the thermistor by the injection molding process.
- 2. The method defined in claim 1 wherein the case is made of metal.
- 3. The method defined in claim 1 wherein the case is made of synthetic resin material.
- 4. The method defined in claim 1 including:
- connecting a sub-coil in parallel with the series circuit including the coil and the thermistor; and wherein the injection-molding step encapsulates and integrally seals the sub-coil together with the case of the coil.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1-036226[U] |
Mar 1989 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/488,662, filed on Feb. 28, 1990, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (1)
Number |
Date |
Country |
59-107108 |
Jul 1984 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
488662 |
Feb 1990 |
|