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Electronic circuit device for compressor

A circuit device and electronic technology, applied in circuits, printed circuit parts, electrical components, etc., can solve the problems of damage to the printed circuit substrate 104, insufficient heat dissipation, and reduced reliability of the semiconductor element 112.

Inactive Publication Date: 2010-08-18
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the conventional structure described above, the heat from the semiconductor element 112 transmitted to the heat sink 116 cannot be dissipated to the air outside the storage box 100.
Therefore, the heat of the semiconductor element 112 for driving the compressor is accumulated inside the storage box 100, and the heat cannot be sufficiently dissipated.
Then there is a problem that the reliability of the semiconductor element 112 decreases due to the temperature rise of the semiconductor element 112.
[0009] In addition, due to the difference in linear expansion coefficient between the printed circuit board 104 and the storage box 100 due to the temperature change inside the storage box 100, stress is applied to the four holes 128 where the printed circuit board 104 is fixed.
As a result, there is a problem that the printed circuit board 104 is damaged.

Method used

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  • Electronic circuit device for compressor
  • Electronic circuit device for compressor
  • Electronic circuit device for compressor

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Embodiment approach 1

[0024] figure 1 It is an exploded view of the electronic circuit device for compressors in Embodiment 1 of the present invention. figure 2 It is a sectional perspective view of the electronic circuit device for compressors in this embodiment. The configuration of the electronic circuit device 61 for compressors will be described below. The storage box 1 has an opening 9 slightly larger than the size of the printed circuit board 5 so that the printed circuit board 5 can be accommodated therein. Moreover, the storage box 1 is comprised by injection-molding resin, such as denatured polyphenylene ether resin. The printed circuit board 5 is formed of glass cloth or glass nonwoven epoxy resin. A connector 13 is mounted on the printed circuit board 5 . When the printed circuit board 5 is stored, the storage box 1 is opened at a position facing the connector 13 to form a cord lead-out portion 17 .

[0025] At four corners of the printed circuit board 5 , holes (four holes in to...

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PUM

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Abstract

Including a storage box for accommodating a printed circuit board having a heat sink, an aluminum plate for closing an opening part of the storage box, and a rubber bush for supporting the printed circuit board from an opposite side of the opening part, the heat sink and the aluminum plate are brought to contact with each other by way of the insulating sheet, so that the heat of the heat sink may be transmitted to the aluminum plate, and released.

Description

technical field [0001] The present invention relates to an electronic circuit device for a compressor having a structure in which a printed circuit board for driving a compressor is accommodated in a storage box. Background technique [0002] A conventional electronic circuit device for a compressor has a structure in which a printed circuit board on which electronic components such as semiconductor elements are mounted is accommodated in the storage box through an opening of the storage box and the opening is closed with a cover. As a fixing structure of the printed circuit board in the above-mentioned conventional electronic circuit device for compressors, for example, the electronic circuit device for compressors described in Japanese Patent Application Laid-Open No. 11-317570 (Patent Document 1) will be described. [0003] Figure 8 It is an exploded perspective view of a conventional electronic circuit device for a compressor described in Patent Document 1. exist Figu...

Claims

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Application Information

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IPC IPC(8): H05K7/20H05K1/02F04B39/00
CPCH01L2924/0002H05K7/142H05K7/20472H01L2924/00
Inventor 德永成臣渡部究
Owner PANASONIC CORP