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An electronic overload relay

A relay and electronic technology, applied in the direction of relays, circuits, electrical components, etc., can solve problems such as difficult to achieve solidification of components and difficult adjustment of acceleration pulse width

Active Publication Date: 2020-11-03
GUIZHOU SPACE APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional electronic overload relay adjusts the acceleration pulse width through resistance and capacitance. Since the resistance and capacitance parameters are greatly affected by the ambient temperature, it is difficult to adjust the acceleration pulse width; at the same time, different pulse width requirements need to be used. The combination of resistors and capacitors makes it difficult to cure the components used in this type of relay control circuit

Method used

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  • An electronic overload relay
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Embodiment Construction

[0015] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0016] An electronic overload relay, comprising a power adjustment circuit, a control circuit, a power switch circuit, and an acceleration detection circuit; the power adjustment circuit is connected to a single-chip microcomputer to input a stable voltage to the control circuit, and the input terminal of the control circuit is connected to an acceleration detection device to output The terminal is connected with the power switch circuit.

[0017] The power adjustment circuit includes a three-terminal voltage stabilizer 3, the input end of the three-terminal voltage stabilizer 3 is connected to the positive pole of the power supply through a current limiting resistor R1, and the input end and output end of the three-terminal voltage stabilizer 3 are respectively passed through a filter capacitor C1 And filter capacitor C2 is connec...

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Abstract

The invention provides an electronic overload relay, comprising a power adjustment circuit, a control circuit, a power switch circuit and an acceleration detection circuit; the power adjustment circuit is connected with a single-chip microcomputer to input a stable voltage to the control circuit, and the input end of the control circuit is connected to the output end of an acceleration detection device and the power switch circuit. The electronic overload relay is less affected by the temperature of the external environment, and the requirements of different pulse widths can be realized only by modifying the program burned in the single-chip microcomputer.

Description

technical field [0001] The invention relates to an electronic overload relay. Background technique [0002] As a kind of pyrotechnic ignition control or acceleration sensitive device, overload relay is widely used in aviation, aerospace, weapons, vehicles, geological and geophysical exploration and other fields. More and more relays are attracting people's attention, and the demand is also increasing year by year. Now the annual demand is tens of thousands. Overload relays are divided into mechanical and electronic types. The mechanical type has low precision and is resistant to vibration, shock and other environments. The ability of stress is poor, which limits its scope of use to a certain extent, so the demand for electronic overload relays is increasing. [0003] The traditional electronic overload relay adjusts the acceleration pulse width through resistance and capacitance. Since the resistance and capacitance parameters are greatly affected by the ambient temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H47/32
CPCH01H47/32
Inventor 王旭
Owner GUIZHOU SPACE APPLIANCE CO LTD