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Surge suppression and over current protection device

A protection device, overcurrent technology, applied in the direction of emergency protection circuit device, emergency protection circuit device, circuit device for limiting overcurrent/overvoltage, etc., can solve damage, heat, high voltage surge can not be effectively led back Problems such as power supply 11 terminals

Inactive Publication Date: 2017-06-13
黄进祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the surge absorber 10 guides the high-voltage surge generated by the lightning strike back to the power supply 11, it will generate heat due to the high-frequency high current, and thus reduce its protection ability and service life, so that when the surge absorber 10 breaks down , the high-voltage surge generated by lightning strikes will not be effectively guided back to the power supply 11, and will cause impact or damage to the load 12

Method used

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  • Surge suppression and over current protection device

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] see figure 2 , is the first embodiment of the surge suppression and overcurrent protection device of the present invention, the surge suppression and overcurrent protection device 100 of this embodiment is used to connect with a power supply 11, such as the live wire (L) and the neutral wire of the AC power supply (N) Electrically coupled to accept a power input, and has a first input terminal I1 connected to the live line of the power supply 11 and a second input terminal I2 connected to the neutral line of the power supply 11, and is used to connect with a The load 12 is electrically coupled to supply the power to a first output terminal O1 and a second output terminal O2 of the load 12 , and includes a surge absorber 20 and a thermal fuse 30 .

[0027] The surge absorber 20 has a first end 21 and a second end 22, and the first end 21 is co...

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Abstract

A surge suppression and over current protection device has a first input end, a second input end, a first output end and a second output end, and comprises a surge suppressor and a thermal fuse. The surge suppressor has a first end and a second end, the first end connects with the first input end, the second end connects with the second input end and the second output end. The thermal fuse has a third end and a fourth end. The third end connects with the first end of the surge suppressor, the fourth end connects with the first output end. The thermal fuse senses the temperature of the surge suppressor, and disconnects when the temperature it sensed over a limit that it can bears.

Description

technical field [0001] The invention relates to a lightning protection device, in particular to a surge suppression and overcurrent protection device. Background technique [0002] Generally, the power circuit is several hundred meters short and several kilometers long. When a lightning strike occurs, the high-voltage surge generated at the moment of the lightning strike enters the building through the power circuit, and the load connected to the power circuit is easily damaged by the lightning strike. . Therefore, in order to prevent the high-voltage surge generated by lightning from damaging the load, such as figure 1 As shown, in the prior art, a surge absorber 10 is usually connected in parallel between a power supply 11 and a load 12 in the power supply circuit. Under normal power supply conditions, the surge absorber 10 is in a high impedance and approximately open circuit state, so that The power supply 11 can directly supply power to the load 12. When a lightning s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/04H02H5/04
CPCH02H5/041H02H9/041
Inventor 黄进祥
Owner 黄进祥