CONTACT DEVICE

PROBLEM TO BE SOLVED: To provide a contact device in which heat generation in a yoke plate and a yoke contact point is suppressed.SOLUTION: The contact device includes: a pair of fixed terminals 33 each having a fixed contact 32; a movable contact 35 with a pair of movable contacts 34 that respectiv...

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Bibliographic Details
Main Authors YAMAMOTO RITSU, IKEDA YOJI, OZAKI RYOSUKE, FUKUDA SUMIHISA, ENOMOTO HIDEKI
Format Patent
LanguageEnglish
Published 02.02.2012
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:PROBLEM TO BE SOLVED: To provide a contact device in which heat generation in a yoke plate and a yoke contact point is suppressed.SOLUTION: The contact device includes: a pair of fixed terminals 33 each having a fixed contact 32; a movable contact 35 with a pair of movable contacts 34 that respectively contact to and separate from the fixed contacts 32 and are arranged on a top surface of the movable contact 35; a yoke contact part 52 that is disposed on a top surface side of the movable contact 35 and restricts movement of the movable contact 35 to a side of the fixed contact 32; a yoke plate 6 that is disposed on the movable contact 35 at an undersurface side thereof and faces the yoke contact part 52 across the movable contact 35; a contact pressure spring 36 that biases the movable contact 35 toward the fixed contact 32; a shaft part 51 connected to the yoke contact part 52; and an electromagnet block 2 for driving the shaft part 51 such that the movable contacts 34 respectively contact to and separate from the fixed contacts 32. The yoke contact part 52 is composed of lamination of sheet-like magnetic substance 521, and the yoke 6 is composed of lamination of sheet-like magnetic substance 61.
Bibliography:Application Number: JP20100161974