An overcurrent protection method, device, storage medium and air conditioner

A technology of overcurrent protection and overcurrent protection value, applied in emergency protection circuit devices, parts of emergency protection devices, measuring devices, etc., can solve the problem that the current detection accuracy cannot be guaranteed, the reliability is poor, and the current detection accuracy is not It can improve detection accuracy, reduce hardware costs, and reduce false alarm overcurrent protection problems.

Active Publication Date: 2020-12-11
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0005] The object of the present invention is to, aiming at the above defects, provide an overcurrent protection method, device, storage medium and air conditioner, to solve the need to use a current transformer to detect the current flowing through the compressor in the overcurrent protection of the air conditioner. The accuracy cannot be guaranteed and false protection will inevitably occur. There is a problem of poor reliability of over-current protection, so as to avoid false protection due to the inability to guarantee the accuracy of current detection and improve the reliability of over-current protection.

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  • An overcurrent protection method, device, storage medium and air conditioner
  • An overcurrent protection method, device, storage medium and air conditioner
  • An overcurrent protection method, device, storage medium and air conditioner

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[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] According to an embodiment of the present invention, an overcurrent protection method is provided, such as figure 1 A schematic flow diagram of an embodiment of the method of the present invention is shown. The overcurrent protection method can be applied to an air conditioner capable of detecting the current flowing through the compressor using a radar wi...

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Abstract

The invention discloses an overcurrent protection method and device, a storage medium and an air conditioner, and the method comprises the steps: detecting a power line of a compressor of the air conditioner through a radar with a set wavelength, and detecting the current flowing through the compressor of the air conditioner so as to obtain the current flowing through the compressor; determining whether the current flowing through the compressor is greater than a set overcurrent protection value or not; if the current flowing through the compressor is greater than the set overcurrent protection value, determining that an overcurrent phenomenon occurs in the current flowing through the compressor, and generating an overcurrent protection instruction; and starting a set overcurrent protection mechanism according to the generated overcurrent protection instruction so as to realize overcurrent protection of the air conditioner. According to the scheme, the problem that the overcurrent protection reliability is poor due to the fact that a current transformer needs to be adopted for detecting the current flowing through the compressor in the overcurrent protection of the air conditionercan be solved, and the effect of improving the overcurrent protection reliability is achieved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an overcurrent protection method, device, storage medium and air conditioner, in particular to an air conditioner control method, device, storage medium and air conditioner for millimeter wave radar detection current. Background technique [0002] Since the current intensity (referred to as current) is the amount of electricity passing through any cross-section of a conductor per unit time, the more electricity flowing through a certain cross-sectional area per unit time, the greater the current. [0003] In terms of current detection, a current transformer can be used to detect the current, but the accuracy of the detection cannot be guaranteed. For example, over-current protection can be realized by detecting the current flowing through the compressor on the air conditioner. If the accuracy of current detection cannot be guaranteed, the accuracy of the over...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/085H02H1/00G01R19/165
CPCG01R19/16585H02H1/0007H02H7/085
Inventor 何松耀
Owner GREE ELECTRIC APPLIANCES INC
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