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Circuit assembly and electrical junction box

  • US 10,448,497 B2
  • Filed: 09/06/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 09/11/2015
  • Status: Active Grant
First Claim
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1. A circuit assembly comprising:

  • a circuit board on which an electronic component is mounted;

    a heat dissipation plate; and

    a heat spreading plate that is separate from the heat dissipation plate,wherein an insulating adhesive layer is interposed between the circuit board and the heat spreading plate,the heat spreading plate and the heat dissipation plate are fixed to each other by fixing means, andthe heat dissipation plate is provided with a positioning portion for positioning the heat spreading plate, the positioning portion being defined by an inner wall recessed from a top surface of the heat dissipation plate, wherein the inner wall bounds an outer peripheral edge of the heat spreading plate, the positioning portion seated within the inner wall of the positioning portion.

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