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Thermal switch

  • US 4,414,529 A
  • Filed: 10/16/1981
  • Issued: 11/08/1983
  • Est. Priority Date: 12/10/1980
  • Status: Expired due to Term
First Claim
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1. A thermal switch including a switch body comprising a base, a plurality of outer terminals held on said base to be electrically independent of each other and respectively having a fixed contact, a plurality of movable contact springs corresponding in number to said outer terminals and respectively having a movable contact contactable with each of said fixed contacts, respective said movable contact springs being electrically connected with each other, a movable-contact-spring fixing plate held onto the base for fixing said movable contact springs in mutually parallel relation in the horizontal direction, and a plurality of bimetals each having a set-temperature different from that of the other and operating respectively independently so as to separate the movable contact of one of the movable contact springs from the fixed contact, whereby one of the movable contact springs operated by one of said bimetals which has said set-temperature relatively lower than the other forms resetting-type switching contacts and the other of the springs of the set-temperature relatively higher forms non-resetting type switching contacts.

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