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a surge protector

A technology of surge protector and electromagnet, which is applied in the direction of emergency protection circuit device, emergency protection circuit device for limiting overcurrent/overvoltage, emergency protection device for automatic disconnection, etc., which can solve the blind area of ​​overcurrent protection protection and other problems, to achieve the effect of improving lightning protection effect, convenient installation, and low residual voltage

Active Publication Date: 2017-09-29
天津市中力防雷技术有限公司
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AI Technical Summary

Problems solved by technology

[0004] The present invention adopts electromagnet, buffer displacement shrapnel, inertial device (inertial wheel) and tripping mechanism as thermal protection device, solves the problem of over-current protection protection blind zone; adopts bimetal sheet and tripping mechanism as thermal protection device

Method used

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0016] Such as figure 1 , 2 As shown, 1 is the upper terminal, 2 is the breaking switch, 3 is the ejector rod, 4 is the electromagnet, 5 is the lower terminal, 6 is the shell, 7 is the lightning protection component, 8 is the thermal patch, and 9 is the bimetal Sheet, 10 is a tripping mechanism, 11 is an inertial device (free wheel), and 12 is a buffer displacement shrapnel.

[0017] figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0018] figure 2 It is a schematic diagram of the principle of the embodiment of the present invention.

[0019] The present invention is a surge protector used in a power electronic circuit system. The surge protector includes a breaking switch, a tripping mechanism, a buffer displacement shrapnel, an inertial device (inertia wheel), an electromagnet, a bimetal, a lightning protection Com...

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Abstract

The invention relates to a surge protector, which mainly includes a breaking switch, a tripping mechanism, an inertial device (inertial wheel), a buffer displacement shrapnel, an electromagnet, a bimetallic sheet, a lightning protection element and upper and lower terminals. The upper terminal is connected in series with the breaking switch, electromagnet, lightning protection element and lower terminal; the electromagnet can drive the tripping mechanism to move, and the tripping mechanism is equipped with a buffer displacement shrapnel and an inertial device (inertial wheel) to ensure that when The electromagnet push rod will only act when it continues to move, and the electromagnet push rod will recover when the lightning current passes through the instant, and the tripping mechanism will not act to ensure that the breaking switch breaks the SPD fault path correctly; the temperature of the lightning protection component is transmitted through the heat conduction patch. As for the bimetal strip, when the temperature is too high, the bimetal strip can deform and drive the tripping mechanism to move and break the circuit. This invention has a comprehensive lightning protection function, realizes quick breaking of power frequency short-circuit current, trips when leakage current is too large, smooth discharge of lightning current, convenient installation, safety and effectiveness.

Description

technical field [0001] The invention belongs to the technical field of surge protection for electronic and electric equipment. Background technique [0002] Lightning is a special weather phenomenon caused by the discharge of charged clouds in the air. Lightning is an important cause of damage to electronic equipment, which threatens the safe and stable operation of electronic information systems in various fields such as construction, railways, civil aviation, communications, industrial control, and military. Installing a surge protective device (SPD) on metal lines such as power lines, signal lines, and control lines connected to electronic equipment is one of the important measures for lightning protection. Surge protectors have been widely used in various fields and play an important role in lightning protection. The quality of its state directly affects its lightning protection effect, thus bringing hidden dangers to the safety of the protected equipment. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/02H02H5/04
Inventor 孙巍巍
Owner 天津市中力防雷技术有限公司
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