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Induction heating apparatus with thermistor and magnetic sensor

  • US 4,351,996 A
  • Filed: 01/28/1981
  • Issued: 09/28/1982
  • Est. Priority Date: 01/30/1980
  • Status: Expired due to Term
First Claim
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1. An induction heating apparatus having an induction heating coil provided below a top plate means for supporting a container of magnetizable material thereon, said induction heating apparatus comprising:

  • thermistor element means provided on the undersurface of said top plate means for controlling energization of said induction heating coil;

    magnet member means movably provided below said top plate means so as to be raised through attraction thereof to a said container of magnetizable material on said top plate means; and

    switching member means provided below said magnet member means for selective energization and de-energization of said induction heating coil in response to the movement of said magnet member means;

    said magnet member means being formed to define bore means therethrough in a predetermined position corresponding to said thermistor element means so as to accommodate said thermistor element means into said bore means upon raising of said magnet member means for preventing collision therebetween and for providing access to said thermistor element means from beneath said magnet member means; and

    said apparatus further comprising support means for thermistor element means extending through said bore means.

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