Anti-misplug apparatus of back-plate electric cabinet

Abstract

An anti-misplug apparatus of a back-plate electric cabinet relates to the anti-misplug apparatus used when a veneer and a back plate are mutually inserted into each other on the back-plate electric cabinet. The invention provides the anti-misplug apparatus of the back-plate electric cabinet which is simple, light and handy, reliable and practical. The apparatus comprises: a veneer board frame, a left side plate and a right side plate. Left and right guide rails with unequal widths are arranged on left and right two sides of the veneer board frame respectively. Steps whose heights are complementary are arranged on the left and right guide rails respectively. A slideway and the step on the left side plate are matched with the left side guide rail and the step on the veneer board frame. The slideway and the step on the right side plate are matched with the right side guide rail and the step on the veneer board frame. Through adjusting the width of the guide rail and the slideway and the height of the steps, an anti-misplug function can be realized.

Description

technical field [0001] The invention relates to an anti-mis-insertion device used for mutual insertion of a single board and a back board on a back board type electric control box. Background technique [0002] The backplane type electric control box is a commonly used circuit board organization form in communication equipment. The electronics are designed according to the idea of ​​modularization. Boards, thermal control boards, etc.), through inter-plugging with the connector 3 corresponding to the backplane 2 to achieve inter-board communication, such as figure 1 shown. In order to prevent a single board from being inserted into a prohibited slot by mistake, an anti-mis-insert device must be installed in the design of the electric control box. [0003] The current backplane anti-mis-insertion structure, such as the "backplane anti-mis-insertion device" (patent number: ZL200520076398.3), is based on the principle of pin-hole cooperation to prevent mis-insertion. Design ...

AI Technical Summary

Problems solved by technology

[0003] The current backplane anti-mis-insertion structure, such as the "backplane anti-mis-insertion device" (patent number: ZL200520076398.3), is based on the principle of pin-hole cooperation to prevent mis-insertion. Design the positioning pin and the positioning hole, and the positioning pin and the positioning hole cooperate with each other in terms of position, size and shape to prevent mis-insertion. This method has the following disadvantages: 1. Additional parts such as positioning pins need to be installed in the box , the structure is complex and occupies a large volume; 2. The location accuracy of the positioning pin is high, which increases the difficulty of design, processing and assembly

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