Switching power supply convenient for maintenance

Abstract

The invention relates to the technical field of power supply equipment accessory devices, in particular to a switching power supply convenient to maintenance, which can facilitate the installation anddisassembly of a shell, so that the maintenance of the device is simpler and more convenient. Air circulation in the inner cavity can be enhanced; the witching power supply comprises a bottom plate,four sets of bases, a shell, a mounting plate and a PCB, an inner cavity is formed in the shell, an opening is formed in the bottom end of the shell, and a left communicating hole and a right communicating hole are transversely formed in the lower half areas of the left side wall and the right side wall of the shell correspondingly; and the witching power supply further comprises a left spring, aright spring, a left clamping plate, a right clamping plate, a middle rope, a pull rope and a pull ring. A left sliding groove and a right sliding groove are formed in the lower half areas of the leftside wall and the right side wall of the mounting plate correspondingly. A left clamping groove and a right clamping groove are formed in the lower half areas of the inner left side wall and the inner right side wall of the shell correspondingly, tangent planes inclining downwards are arranged at the left end of the left clamping plate and the right end of the right clamping plate correspondingly, and a through hole is transversely formed in the center area of the inner right side wall of the left sliding groove; and a fan and a first dustproof net are further included.

Description

technical field [0001] The invention relates to the technical field of accessory devices of power supply equipment, in particular to a switching power supply for convenient maintenance. Background technique [0002] As we all know, a switching power supply is an auxiliary device that converts a level of voltage into the voltage or current required by the user through different forms of architecture. It has been widely used in the field of power supply equipment; the existing The switching power supply includes a bottom plate, four sets of bases, a shell, a mounting plate and a PCB board. Area connection, the PCB board is installed on the top of the mounting plate, there is an inner cavity inside the housing, an opening is provided at the bottom of the housing, the opening communicates with the inner cavity, the bottom of the housing is connected to the top of the bottom plate, the left side wall and the right side of the housing The lower half of the wall is provided with a...

AI Technical Summary

Problems solved by technology

[0002] As we all know, a switching power supply is an auxiliary device that converts a level of voltage into the voltage or current required by the user through different forms of architecture. It has been widely used in the field of power supply equipment; the existing The switching power supply includes a bottom plate, four sets of bases, a shell, a mounting plate and a PCB board. Area connection, the PCB board is installed on the top of the mounting plate, there is an inner cavity inside the housing, an opening is provided at the bottom of the housing, the opening communicates with the inner cavity, the bottom of the housing is connected to the top of the bottom plate, the left side wall and the right side of the housing The lower half of the wall is provided with a left communication hole and a right communication hole horizontally; when the existing switching power supply is used, the housing is fixed on the top of the bottom plate by external bolts, and the external lines pass through the left communication hole and the right communication hole respectively and are connected to the PCB board. The left end and the right end are connected, and the shell can cover and protect the PCB board; in the use of the existing switching power supply, it is found that the installation and disassembly of the shell are more complicated, which makes the maintenance of the device more difficult, resulting in poor convenience for use; The inner cavity is a closed space, the air in the inner cavity does not circulate, and it is easy to be damaged due to high temperature, resulting in poor safety in use

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