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Communication power module output isolation protection device

A technology of output isolation and protection device, which is applied in the electronic field, can solve the problems of poor heat dissipation effect and no protection effect of the output terminal of communication power supply module, and achieve timely and convenient maintenance, prevent overcharging, and protect the battery.

Pending Publication Date: 2021-10-08
RATE ELECTRIC EQUIP CO LTD OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an output isolation protection device for a communication power supply module to solve the problems of no protection effect on the output end of the communication power supply module and poor heat dissipation effect proposed in the above background technology

Method used

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  • Communication power module output isolation protection device
  • Communication power module output isolation protection device
  • Communication power module output isolation protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Measure the output voltage value of each module.

[0048] 1.1. The output voltage of each power supply module enters the corresponding input terminals of the power control module 10 of the device respectively, and the voltage passes through the signal sampling isolation module 11 for sampling by the CPU, and the measured values ​​are u1, u2, u3, u4...;

[0049] 1.2. After the voltage of each module passes through the isolation diodes D1, D2, D3, D4... respectively, after passing through the DC contact normally closed contacts K1, K2, K3, K4..., after short-circuiting, the DC bus-M is formed and output to the device the output terminal;

[0050] 1.3.-M voltage is sampled by the CPU after passing through the photoelectric isolation, and the measured value is u0;

[0051] 1.4. The CPU drives the DC contactor in the power control module 10 and drives the alarm display module 13 according to judgment and analysis.

[0052] 1.5. Through the communication module 8, exchan...

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Abstract

The invention relates to the technical field of electronics, in particular to a communication power module output isolation protection device which comprises a shell and a power module, a bottom plate is arranged at the bottom of the shell, and a main control board is arranged in the shell. The main control board comprises a CPU data processing module, a communication module, a driving module, a power control module, a signal sampling isolation module and a temperature sensor, the communication module is electrically connected with the CPU data processing module, the driving module is electrically connected with the CPU data processing module, the power control module is electrically connected with the driving module, and the signal sampling isolation module is electrically connected with the CPU data processing module and the power control module. The signal sampling isolation module is utilized to directly and automatically cut off the output of the overvoltage power module, protect electric equipment, prevent a battery from being overcharged and protect the battery, so that the working condition of the power module is monitored, and the phenomenon that the power module cannot be self-adjusted and self-protected due to self reasons and is out of control is prevented.

Description

technical field [0001] The invention relates to the technical field of electronics, in particular to an output isolation protection device of a communication power supply module. Background technique [0002] Substation communication power supply (-48V) overvoltage protection is generally to protect the input side of the power module, such as AC input is too high, lightning protection and so on. [0003] At present, no overvoltage protection for physical electrical isolation of the output side of the communication power supply has been found in China. For example, several parallel 48V switching power supply modules, if the output of the modules is out of control for some reason, the overvoltage output will inevitably affect the load side, such as Exceeding the upper limit of load power consumption will damage the equipment, and will also cause overcharge to the battery, affecting the battery life. [0004] Chinese Patent No. 201410605497.X discloses a high-voltage overvolta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/12H02H7/10H02H7/18H02M1/00H05K7/20H02H3/04
CPCH02H7/12H02H7/10H02H7/18H02M1/00H05K7/20909H02H3/04
Inventor 孙长影张海军徐伟强孙健娇
Owner RATE ELECTRIC EQUIP CO LTD OF ZHUHAI