Fixed parts for circuit board

Abstract

A fixed part for a circuit board is used for fixing the circuit board on the bottom plate of the crate of the electronic device, and the fixed part comprises a hollow shell, the top and the bottom of the hollow shell are respectively fixed on the bottom plate of the crate to support the circuit board. The hollow shell comprises a first end part and a second end part in the horizontal direction and the first end part is rotationally combined with a shaft, the top of the shaft exposes from the top of the hollow shell, and the top of the shaft is provided with a pressing arm, the terminal end of the pressing arm extends to the second part. By rotating the shaft, the terminal end of the pressing end presses the circuit board, thereby fixing the circuit board on the bottom plate of the crate.

Description

technical field [0001] The invention relates to a fixing part, in particular to a fixing part for a circuit board. Background technique [0002] The mainboard is fixed on the bottom plate of the chassis such as a server or personal computer by using screws to support the mainboard and fixing it to the bottom plate of the chassis. In recent years, in order to improve the convenience of installing the mainboard, a plastic and tool-free Fixed fixtures came into being. [0003] see figure 1 , the fixed part 1 includes a hollow shell 10, a flange 11 arranged at the bottom of the hollow shell 10, and a pressing part 12 rotatably coupled to the top of the hollow shell 10, wherein the hollow shell 10 has The lateral shrapnel 101 and the pressing part 12 are composed of a rotating shaft 120 and two wing parts 121 extending from both sides of the rotating shaft 120 , and there is a gap between the two wing parts 121 and the hollow casing 10 . [0004] The chassis bottom plate (not ...

AI Technical Summary

Problems solved by technology

[0006] Although the fixing part 1 can preliminarily realize the purpose of fixing the motherboard, it has two wings 121, so the hole provided on the motherboard must be at least slightly larger than the area of ​​the two wings 121, thus occupying the space on the motherboard. Further, the wiring on the motherboard is limited, and when multiple fixed parts 1 are used on the motherboard, the occupied space is larger

[0007] Moreover, the two wings 121 of the rotating shaft 120 of the fixed component 1 can have the best effect of pressing the main board after turning 90 degrees. Nowadays, the technical field also limits the rotation of the rotating shaft to 90 degrees, but the rotating shaft 120 cannot be fixed. Because of the specific rotation angle, the two wings 121 are easy to loosen due to vibration or other external forces

[0008] Furthermore, the hollow housing 10 of the fixing part 1 is only used to support the main board and cannot limit the lateral movement of the main board, so that the main board is easy to slide when it is transported or subjected to external force

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