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Noncontact charging open circuit protection device

A non-contact charging and open-circuit protection technology, which is applied to circuit devices, automatic disconnection emergency protection devices, emergency protection circuit devices, etc., can solve the problems that cannot meet the requirements of wireless charging open-circuit protection, slow control speed, etc. High reliability, fast protection speed and simple operation

Active Publication Date: 2016-02-03
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control method has a slow control speed and cannot meet the requirements of wireless charging open circuit protection

Method used

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  • Noncontact charging open circuit protection device
  • Noncontact charging open circuit protection device
  • Noncontact charging open circuit protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below for specific embodiments in conjunction with the accompanying drawings.

[0022] The device of the present invention includes a non-contact power transmission unit 1 , a non-contact power transmission unit 2 and a non-contact power reception unit 3 . The output end of the non-contact power transmitting unit 1 is connected to the input end of the non-contact power transmission unit 2 , and the output end of the non-contact power transmission unit 2 is connected to the input end of the non-contact power receiving unit 3 . The non-contact power transmitting unit 1 converts the AC 220V power signal into a high-frequency signal through inversion, and sends it out through the output terminal of the non-contact power transmission unit 2, and the non-contact power receiving unit 3 receives the high-frequency signal and rectifies the high-frequency signal into The DC signal charges the load.

[0023] The non-contact power tr...

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PUM

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Abstract

The invention discloses a noncontact charging open circuit protection device, which comprises a noncontact power emission unit (1), a noncontact power transmission unit (2) and a noncontact power receiving unit (3), wherein a first control unit and a second control unit carry out information interaction in real time through wireless communication; the second control unit monitors open circuit voltage V and current A of the noncontact power receiving unit (3) in real time; the second control unit detects that the current A changes, and feeds information back to the first control through the wireless communication; a comparison control unit compares load voltage V+ with reference voltage of the noncontact power receiving unit (3) in real time; when an open circuit fault occurs in a load of the noncontact power receiving unit (3), output of a comparator controls a relay Kp to be closed; and the first control unit controls the output of an inverter to achieve a protection function.

Description

technical field [0001] The invention relates to a non-contact charging open circuit protection device. Background technique [0002] Since the 1990s, contactless power transfer (Contactless Power Transfer, CPT) technology has attracted the attention of more and more scholars and researchers in related fields at home and abroad because of its broad application prospects. This technology can realize the non-electrical connection between the power supply end and the load end for non-contact transmission of electric energy. Therefore, it is convenient for power supply requirements in harsh environments such as high temperature, high humidity, high corrosion, and explosives, as well as in living organisms, home appliances, and electric vehicles. Occupy a unique advantage. [0003] At present, low-power non-contact power transmission has been widely used in the charging of portable electronic products. The application of non-contact power transmission in the charging of portable ...

Claims

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Application Information

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IPC IPC(8): H02J50/12H02H3/06
Inventor 王立业王丽芳廖承林张志刚
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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