Earth leakage protection device and method capable of switching working modes and charging equipment

A technology of leakage protection device and working mode, applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, circuit device, etc., can solve the problem of single RCD function and so on

Pending Publication Date: 2022-01-21
MEGA-PHASE ELECTRONIC TECH LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the function of RCD is relatively single. Different types of RCDs can only detect the corresponding types of leakage signals. For example, AC-type RCDs can only detect AC-type leakage; A-type products can detect pulsating DC and AC leakage, etc.

Method used

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  • Earth leakage protection device and method capable of switching working modes and charging equipment
  • Earth leakage protection device and method capable of switching working modes and charging equipment
  • Earth leakage protection device and method capable of switching working modes and charging equipment

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Embodiment Construction

[0049] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0050] It should be understood that the invention can be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.

[0051]It will be understood that when an element or layer is referred to...

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Abstract

The invention discloses a leakage protection device and method capable of switching working modes and charging equipment, and the device comprises a leakage current sensor which is used for sensing a leakage current signal; the external communication interface is used for receiving an external communication signal; the control circuit is connected with the leakage current sensor and the communication interface and is used for switching working modes according to the external communication signal and generating an alarm signal in the corresponding working mode; and the output interface is connected with the control circuit and is used for outputting the alarm signal. The electric leakage protection device is provided with the external communication interface, and the working modes are switched according to the external communication signals received through the external communication interface, so that the same electric leakage protection device can adapt to different application environments and working modes.

Description

technical field [0001] The present invention generally relates to the field of leakage detection, and more specifically relates to a leakage protection device, method and charging equipment with switchable working modes. Background technique [0002] RCD (Residual Current Device, residual current detection device) is a leakage protection device used to detect the leakage current in the line. If no RCD is installed in the line, when a person or animal is exposed to high voltage, a leakage current will be generated to the ground. When the leakage current exceeds a certain threshold, it will cause the heart of the person or animal to tremble, causing cardiac arrest, and then causing Life is in danger. If a leakage protection device such as RCD is installed in the line, when there is a leakage current in the line and the magnitude of the leakage current signal exceeds the set threshold, the RCD will send an alarm signal to the action mechanism, triggering the action mechanism t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/32H02H1/00G01R31/52
CPCH02H3/32H02H1/0007G01R31/52
Inventor 杜明胜董天帅
Owner MEGA-PHASE ELECTRONIC TECH LTD SHANGHAI
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