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Drip-proof structure of electronic apparatus

An electronic equipment and anti-drip technology, which is applied to the structural parts of electrical equipment, electrical equipment shells/cabinets/drawers, electrical components, etc., can solve problems such as reduced life of electronic devices, short circuit of modules, and deterioration of gaskets

Inactive Publication Date: 2014-03-26
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are cases where the cutting fluid penetrates into the operation panel frame due to the harsh environment where a large amount of cutting fluid continuously splashes or deterioration of the gasket due to aging.
In such a case, liquid such as cutting fluid flows in the frame of the electronic equipment, and then the liquid spreads from the studs to the printed circuit board. As a result, the module of the printed circuit board is short-circuited or the life of the mounted electronic device Lowering and other issues

Method used

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  • Drip-proof structure of electronic apparatus
  • Drip-proof structure of electronic apparatus
  • Drip-proof structure of electronic apparatus

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Embodiment Construction

[0022] figure 1 Electronic equipment 1 such as a numerical control device controlling a machine tool and an operation panel housing 2 of a machine tool or the like on which the electronic equipment 1 is mounted are shown. In addition, cables 13 are routed from the inside of the operation panel housing 2 to the outside. In addition, in the following description, the numerical control device which controls a machine tool is taken as an example of this electronic equipment 1. As shown in FIG.

[0023] as figure 1 A-A line sectional view of figure 2 As shown, the electronic equipment 1 (that is, the numerical control device) has: a liquid crystal display panel 4; a frame body 5 on which the liquid crystal display panel 4 is installed; a surface cover 3 covering the display surface side of the liquid crystal display panel 4; A plurality of stud bolts 8 on the surface opposite to the side where the liquid crystal display panel 4 is disposed; and a printed circuit board 7 suppo...

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Abstract

A drip-proof structure of an electronic apparatus in which a printed circuit board is fixed to a stud provided on a housing includes a concave portion and / or a convex portion that is provided around the stud on the housing. Therefore, when a liquid, such as a cutting fluid, flows on the housing, the flow of the liquid from the stud to the printed circuit board is prevented by the concave portion and / or the convex portion.

Description

technical field [0001] The present invention relates to a drip-proof structure of electronic equipment, in which a printed circuit board is fixed to stud bolts provided on the frame body, and liquids such as cutting fluid flowing from the frame body are suppressed from flowing from the stud bolts to the printed circuit board. Control circuit substrate flow. Background technique [0002] Electronic equipment such as numerical control devices that control machine tools are mounted on the operation panel housings of machine tools, etc., and are used in harsh factory environments where cutting fluid is used. In the case of the electronic equipment, studs are generally provided to support the printed circuit board, and the printed circuit board is fixed to the studs using screws or the like (for example, refer to Japanese Patent Application Laid-Open No. 10-301613 Bulletin). [0003] In order to protect the inside of the operation panel frame in the factory environment, the fol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02
CPCH05K7/1462H05K5/0234H05K7/142
Inventor 本田裕一
Owner FANUC LTD