THERMAL OVERLOAD RELAY

PROBLEM TO BE SOLVED: To provide a unit support structure capable of maintaining a main bimetal in an upright posture even for a long time usage and securing safety of operation characteristics by suppressing creeping deformation through alleviating a residual stress of a rib accompanying a press-in...

Full description

Saved in:
Bibliographic Details
Main Authors KAMOSAKI TAKEO, FURUHATA YUKIO, UCHIYAMA TAKU, TOYAMA KENTARO, MORISHITA FUMIHIRO
Format Patent
LanguageEnglish
Published 24.12.2010
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a unit support structure capable of maintaining a main bimetal in an upright posture even for a long time usage and securing safety of operation characteristics by suppressing creeping deformation through alleviating a residual stress of a rib accompanying a press-insertion into the rib formed projecting from right and left partitioning walls of a unit chamber of an outer case which insert-supports a support plate of a heater unit to be loaded on a thermal overload relay. SOLUTION: A heater unit 1 of a main bimetal 2 is loaded on an outer case 14, the heater unit 1 includes a structure in which the bimetal 2 is T-joint connected with a center of a support plate 15; a unit chamber 14a demarcated in the outer case 14 is provided with ribs 14d facing each other from their right and left sidewalls; the support plate 15 is made astride between the ribs 14d and is press-inserted to a lower face side for supporting the main bimetal 2 in an upright posture. Convex shaped step parts 14d-1 are formed on end sides of the ribs 14d toward the support plate 15 and push on a plate face of the support plate 15 so as to press-support a heater unit 1 in an upright posture. COPYRIGHT: (C)2011,JPO&INPIT
Bibliography:Application Number: JP20090140292