Capacitance-controlled electromagnetic computer mainboard fixing device

Abstract

The invention discloses a capacitance-controlled electromagnetic computer mainboard fixing device, and relates to the technical field of computer mainboards. The capacitance-controlled electromagneticcomputer mainboard fixing device includes a fixing column, the inner bottom wall of the fixing column is movably connected with a conductive block; a dielectric plate is fixedly connected to the middle of the conductive block, a positive plate is fixedly connected to the inner wall of the bottom of the fixing column and close to the left side of the conductive block, a negative plate is fixedly connected to the inner wall of the bottom of the fixing column and close to the right side of the conductive block, and a resistor electrically connected with the negative plate is fixedly connected tothe inner wall of the bottom of the fixing column. According to the capacitance-controlled electromagnetic computer mainboard fixing device, an electromagnet is matched with a magnetic block II for use; when a host is used, at the moment, a circuit of the electromagnet is also in a power-on state, and the outer side of the electromagnet generates the same magnetism as the inner side of the secondmagnetic block, so that the second magnetic block can move outwards under the magnetic repulsion effect of the electromagnet, clamping of the positioning block and the positioning groove is enhanced,loosening of the mainboard is effectively prevented, the stability of the mainboard is improved, and normal use of the mainboard is guaranteed.

Description

technical field [0001] The invention relates to the technical field of computer motherboards, in particular to an electromagnetic computer motherboard fixing device controlled by capacitance. Background technique [0002] Computer motherboard is also called motherboard, system board or motherboard; it is divided into two types: commercial motherboard and industrial motherboard. It is installed in the case and is one of the most basic and important components of a microcomputer. The motherboard is generally a rectangular circuit board. The main circuit system that makes up the computer is installed on it, generally including BIOS chips, I / O control chips, keyboard and panel control switch interfaces, indicator light connectors, expansion slots, motherboards and DC power supply connectors for cards, etc. . [0003] Most of the current computer mainboards are fixed on the inner wall of the computer mainframe by screws, which requires drilling holes on the inner surface of the ...

AI Technical Summary

Problems solved by technology

[0003] Most of the current computer mainboards are fixed on the inner wall of the computer mainframe by screws, which requires drilling holes on the inner surface of the mainframe shell first, which may cause damage to the mainframe material and affect the service life of the mainframe shell, and when the mainframe is in use, Vibration will occur, and long-term vibration will cause the screws to loosen, causing the risk of the main board falling off, and the parts of the main board are relatively precise, and the impact after falling off may cause damage to the main board and affect the use, and the screws are difficult to save during the disassembly process. The screws are often lost, resulting in the motherboard not being firmly fixed, making the motherboard more likely to loosen

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