Title:
【発明の名称】三相用サーマルプロテクタ
Document Type and Number:
Japanese Patent JPH0831300
Kind Code:
B2
Abstract:
This invention relates to a three-phase thermal protector having two pairs of fixed and movable contacts for opening and closing the neutral of wye-connected phase windings of a three-phase induction motor. The protector further includes a header plate having two terminal pins secured by an insulating sealant material respectively, a support plate secured to the header plate, an elastic member disposed so as to be approximately parallel to the support plate, the elastic member having two ends, one of which is secured to the support plate, a thermally responsive element secured at one end thereof to the other end of the elastic member, the thermally responsive element carrying the movable contacts and moving and returning with snap action in response to temperature change, a pivot mounted on a stationary member either at the header plate side or at the support plate side so that the surface of connecting portions of the thermally responsive element and the elastic member is engaged therewith, and an operative temperature calibrating mechanism provided on the support plate for exerting a contact pressure between the movable and fixed contacts.
More Like This:
| WO/2012/099922 | LAMP HOLDER WITH ELECTROMECHANICAL INTEGRATED THERMOSTAT |
Inventors:
UBUKATA SUSUMU
MIZUTANI YASUKAZU
IYODA SHOZO
MIZUTANI YASUKAZU
IYODA SHOZO
Application Number:
JP25340187A
Publication Date:
March 27, 1996
Filing Date:
October 07, 1987
Export Citation:
Assignee:
UBUKATA MASAYA
UBUKATA REIKO
UBUKATA SHINNOSUKE
UBUKATA REIKO
UBUKATA SHINNOSUKE
International Classes:
H01H37/18; H01H37/54; H01H81/02; H01H5/30; (IPC1-7): H01H37/54
Domestic Patent References:
| JP5734623A | ||||
| JP6288232A | ||||
| JP4634532B1 | ||||
| JP315747Y1 |
Attorney, Agent or Firm:
Reiko Ikukata
Next Patent: 電磁接触器