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Simple overvoltage protector

A protector, a simple technology, applied in the field of simple overvoltage protector, electric tricycle wiring harness, can solve the problems that cannot be used alone, increase the manufacturing cost, etc., and achieve the effect of ultra-low cost

Inactive Publication Date: 2015-06-24
程永
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A small number of electrical appliances add overvoltage protectors on the basis of leakage protectors and air switches. The main function of overvoltage protectors is to comprehensively monitor, control and protect voltage. The abnormal sudden rise will cause damage to life and property, but at the same time increase the manufacturing cost. In addition, the overvoltage protector is integrated with the circuit and cannot be used alone

Method used

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  • Simple overvoltage protector

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Embodiment Construction

[0008] Such as figure 1 As shown, a simple overvoltage protector, a fuse is connected in series on the power line, the outlet end of the fuse is connected to the negative pole of a Zener diode, and the positive pole of the Zener diode is connected to the negative pole of the power supply; the voltage regulation value of the Zener diode is 1 V ~500V; the working current of the fuse is 0.01A~1000A.

[0009] The fuse adopts self-recovery fuse, which has dual functions of overcurrent and overheat protection and automatic recovery. When the circuit is short-circuited or overloaded, the heat generated by the high current flowing through the self-recovery fuse melts the polymer resin, and the volume grows rapidly to form a high-resistance state, and the working current decreases rapidly, thereby limiting and protecting the circuit. When the fault is eliminated, the self-recovery fuse is re-cooled and crystallized, the volume shrinks, the conductive particles re-form a conductive pat...

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Abstract

The invention discloses a simple overvoltage protector, and relates to the technical field of electric appliance overvoltage protection. According to the simple overvoltage protector, a fuse is arranged on a power wire in series, an outlet end of the fuse is connected with the negative pole of a voltage stabilizing diode, and the positive pole of the voltage stabilizing diode is connected with the negative pole of a power supply; a voltage stabilizing value of the voltage stabilizing diode ranges from 1 V to 500 V, and a working current of the fuse ranges from 0.01 A to 1000 A. The simple overvoltage protector has the advantages that the simple overvoltage protector can be used individually, and the manufacturing cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of electric appliance overvoltage protection, in particular to a simple overvoltage protector, which is especially suitable for electric tricycle wiring harnesses. Background technique [0002] At present, most electrical appliances do not have the function of overvoltage protection, and are often protected by an external leakage protector or an air switch. The leakage protector solves the leakage problem, such as electric shock to the human body, the current flows through the human body to the ground, generally exceeding 30 mA, the leakage protector will cut off the power supply, thus avoiding the current from harming the human body. When the current exceeds a certain level, it will cause the switch to trip and cut off the power supply due to heat until the metal sheet is heated and bent. The protection circuit will not be burned due to excessive current, and it only plays the role of protecting the circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/20
Inventor 程永
Owner 程永
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