Novel surge protection device

A surge protector, a new type of technology, used in emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection devices for automatic disconnection, etc., can solve the blind spot of overcurrent protection protection, etc. problem, to achieve the effect of improving lightning protection effect, low residual voltage and convenient installation

Active Publication Date: 2014-06-11
天津市中力防雷技术有限公司
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  • Abstract
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Problems solved by technology

[0004] The present invention adopts electromagnet, buffer displacement shrapnel, inertial device (inertial wheel) and tripping mechanism as thermal protec

Method used

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[0015] The present invention will be further explained below in conjunction with the drawings and embodiments:

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

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

[0018] figure 2 It is a schematic diagram of the principle of an 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 disconnect switch, a tripping mechanism, a buffer displacement shrapnel, an inertia device (inertia wheel), an electromagnet, a bimetal, and lightning protectio...

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PUM

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Abstract

The invention relates to a novel surge protection device which mainly comprises a breaking switch, a tripping mechanism, an inertia device (inertia wheel), a displacement buffer elastic sheet, an electromagnet, a bimetallic strip, a lightning protection element, an upper terminal and a lower terminal. The upper terminal is connected with the breaking switch, the electromagnet, the lightning protection element and the lower terminal in series. The electromagnet can drive the tripping mechanism to move, the displacement buffer elastic sheet and the inertia device (inertia wheel) are arranged on the tripping mechanism, it is guaranteed that the device moves as long as an ejector rod of the electromagnet moves continuously, the ejector rod of the electromagnet moves fast and restores at the moment that lightning currents pass, the tripping mechanism does not move, and it is guaranteed that the breaking switch accurately switches off an SPD fault access. The temperature of the lightning protection element is transmitted to the bimetallic strip through a heat conduction paster, and when the temperature is too high, the bimetallic strip can be deformed to drive the tripping mechanism to move to switch off the circuit. The novel surge protection device has the comprehensive lightning preventing function, power frequency short-circuit currents can be switched off fast, tripping is carried out when leakage currents are too high, the lightning currents are discharged smoothly, and the novel surge protection device is convenient to mount, safe and effective.

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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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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