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Electrical connection box

A technology for electrical connection boxes and circuit substrates, applied to electrical components, circuits or fluid pipelines, chassis/cabinet/drawer parts, etc. The effect of water transfer to, preventing short circuit

Active Publication Date: 2017-03-22
SUMITOMO WIRING SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, when water infiltrates into the cover from the gap between the opening end of the cover and the main body, etc., a capillary phenomenon occurs in the small gap between the outer surface of the main body and the inner surface of the cover, and there is a possibility that water will penetrate deeply into the cover. possibility of
In addition, there is a possibility that the water infiltrated into the cover may be transmitted to the circuit board of the main body, causing a short circuit or corrosion of the circuit board.

Method used

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Embodiment Construction

[0033] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0034] first, figure 1 The electrical connection box 10 which is one embodiment of this invention is shown in . The electrical junction box 10 includes a main body 12 and a cover 14 , and the main body 12 is housed and assembled in the cover 14 by inserting the cover 14 onto the main body 12 . The electrical junction box 10 is accommodated in other electrical junction boxes, such as a relay box, for example, and is mounted in vehicles, such as an automobile.

[0035] Figure 2 ~ Figure 4 The main body portion 12 is shown. The main body part 12 is formed in the shape of a vertically long rectangular block as a whole. The main body 12 has a structure in which a printed circuit board 18 as a circuit board is assembled on a frame 16 made of synthetic resin. In addition, the circuit board is not limited to a printed board, and may be a bus bar or the like. Main body 12...

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Abstract

With regard to the electrical connection box in which the cover is inserted and assembled on the main body part provided with the circuit board, an electrical connection of a new structure can be provided that can prevent water infiltrated into the cover from being transmitted to the circuit board through the small gap between the main part and the cover box. The outer surface (38) of the above-mentioned main body (12) and the inner surface (59) of the above-mentioned cover (14) facing each other in a state where the cover (14) is assembled to the main body (12) provided with the circuit board (18) At least one of them is provided with a guide drainage groove (44) that guides water in the horizontal direction by capillary phenomenon, and is immersed in the outer surface (38) of the above-mentioned main body (12) and the inner surface (59) of the above-mentioned cover (14). ) between and the rising water is caught by the above-mentioned guide drainage groove (44).

Description

technical field [0001] The present invention relates to an electrical connection box in which a cover is assembled to a main body including a circuit board, and more particularly relates to an electrical connection box assembled in a state in which the main body is accommodated by inserting the cover from the main body. Background technique [0002] Conventionally, in automobiles and the like, electrical connection boxes are used for arranging electrical components such as fuses and relays with good space efficiency. As such an electrical connection box, for example, as described in Japanese Patent Application Laid-Open No. 2008-295263 (Patent Document 1), there is known an electrical connection box having a structure in which a cover is externally inserted into a main body portion provided with a circuit board such as a printed circuit board, and the The main body is housed in the cover. [0003] In addition, due to the demand for miniaturization in recent years, as descri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/16B60R16/02H05K5/02H05K5/03
CPCB60R16/0239H02G3/086H02G3/14H05K5/0208H02G3/088H05K5/0056
Inventor 阿南修一
Owner SUMITOMO WIRING SYST LTD