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Casing of electronic equipment

A technology for electronic equipment and shells, which is applied in the field of shells of electronic equipment, and can solve problems such as complex arrangement of optical fibers and large shell sizes

Inactive Publication Date: 2005-03-09
KOYO ELECTRONICS INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many optical fibers have to be arranged in the housing; for this reason, not only the arrangement of the optical fibers is complicated, but also the housing itself has to be made into a large size.

Method used

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  • Casing of electronic equipment
  • Casing of electronic equipment
  • Casing of electronic equipment

Examples

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Embodiment Construction

[0029] The casing of the present invention is composed of a base 1, a case 21 and accessories such as prisms 51 and 54, which will be described in detail below. Reference numeral 61 denotes a printed circuit board assembly, which is housed in the case. The printed circuit board assembly 61 includes: a CPU board 62, an I / O board 63 and a terminal board 64, wherein the CPU board 62 is the first printed circuit board on which many electronic components (not shown); The O board 63 is the second printed circuit board, which is above the CPU board 62; the terminal board 64 is the third printed circuit board, which is attached to one end of the I / O board 63 perpendicular to the I / O board 63. The terminal plate 64 has engagement claws 65 at both ends. Reference numeral 66 represents a plurality of light sources such as LEDs located on the CPU board 62 , and reference numeral 67 represents a plurality of light sources such as LEDs located on the I / O board 63 .

[0030] In the base bo...

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PUM

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Abstract

A housing body of electronic equipment has a square base body having a circumferential wall and a box-like case assembled with the base body. The base body has a built-in printed board assembly including first, second and third printed boards of which the first and second printed boards are arranged above one another, and the third printed board has engaging pawls formed at both its end portions engaged with one side of the first and second printed boards perpendicular thereto. The base body is provided with a plurality of printed board engaging members at an inner side of its circumferential wall, and with first support portions and struts in the vicinity of four corner portions of the base body.

Description

technical field [0001] The present invention relates to a housing for electronic equipment having a built-in printed circuit board mounted on a control board or the like. Background technique [0002] In electronic equipment such as programmable controllers, the housing is composed of a box and a cover, and a circuit board is installed in the box, and a CPU, an input / output (I / O) circuit and a light-emitting diode for display are installed on the circuit board (LED), etc., the cover is used to seal the upper opening of the box. There is a display section on the housing cover, which shows the visual signal from the LED. [0003] Generally, in the above-mentioned electronic equipment, the case cover is fixed to the case, and the printed circuit board is fixed to the case with screws; for this reason, assembly is troublesome and requires many assembly processes. [0004] Also, the LEDs on the printed circuit board must be arranged in close proximity to the display portion on ...

Claims

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Application Information

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IPC IPC(8): H05K5/02H05K7/14
CPCH05K7/1427
Inventor 大塚由美子
Owner KOYO ELECTRONICS INDS
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