Relief device for onboard power supply lightning protection circuit and lightning protection power supply

A technology of discharge device and lightning protection circuit, which is applied in the direction of clamping/spring connection, connection contact material, etc., can solve the problem of large power supply and achieve the effect of small size, strong practicability and simple structure

Inactive Publication Date: 2017-01-11
SHENZHEN VMAX POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lightning protection performance is one of the necessary performances in high-reliability power supply products. The existing lightning protection power supply is generally connected to a lightning protection module or a lightning protection box in the power cabinet separately. However, the volume of the power supply in this way larger

Method used

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  • Relief device for onboard power supply lightning protection circuit and lightning protection power supply
  • Relief device for onboard power supply lightning protection circuit and lightning protection power supply
  • Relief device for onboard power supply lightning protection circuit and lightning protection power supply

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Embodiment Construction

[0014] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] In one embodiment, the circuit structure diagram of the lightning protection power supply is as follows figure 1 shown. The lightning protection power supply 100 is equipped with a lightning protection circuit 101, which is composed of electronic components such as piezoresistors and ceramic gas discharge tubes. The first piezoresistor DZ1 is connected between the live wire and the neutral wire, and the second and third piezoresistors DZ2 and DZ3 are connected in series between live wire and neutral wire, and the connection wire between them is grounded through a ceramic gas discharge tube. The current discharge path 102 of the lightning protection circuit 101 is the PE line (ground line) connected to the ceramic gas discharge tube. When the power supply is struck by lightning, the varistor can instantly reduce the increased voltage between the live l...

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Abstract

The invention discloses a relief device for an onboard power supply lightning protection circuit and a lightning protection power supply. The device comprises a grounding seat mounted on a PCB, a through hole arranged in a power supply shell and a grounding screw, wherein the grounding seat comprises a column body with inner thread and a pair of insertion boards extending out of two sides of the column body and bent downwardly; the grounding screw passes through the through hole and the through hole arranged in the PCB from the bottom of the power supply shell to be connected with the inner thread of the grounding seat, and grounding of the onboard power supply lightning protection circuit is realized. The structure is simply and delicately designed, the size is small, current relief can be effectively realized, the lightning protection performance is high, the cost is saved, and the practicability is strong.

Description

technical field [0001] The invention relates to the field of lightning protection power supplies, in particular to a discharge device for a lightning protection circuit of a board-mounted power supply and a lightning protection power supply using the discharge device. Background technique [0002] Lightning protection performance is one of the necessary performances in high-reliability power supply products. The existing lightning protection power supply is generally connected to a lightning protection module or a lightning protection box in the power cabinet separately. However, the volume of the power supply in this way larger. PCB onboard surge protector is a good compromise between small size and high lightning protection performance. The large current of lightning protection power supply products is generally discharged through the power supply case. How to establish a small volume between the PCB board and the power supply case? And the discharge device with high ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/64H01R4/34
CPCH01R4/64H01R4/34
Inventor 刘钧刘骥冯颖盈
Owner SHENZHEN VMAX POWER
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