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Relay detection method, device, relay, storage medium and equipment

A detection method and relay technology, applied in the fields of relays, devices, storage media and equipment, and relay detection methods, can solve the problems of inability to accurately detect relay faults, and achieve accurate and smarter detection, improve operational reliability, and improve reliability. Effect

Active Publication Date: 2019-09-03
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned prior art, and provide a relay detection method, device, relay, storage medium and equipment to solve the problem that relay faults cannot be accurately detected

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  • Relay detection method, device, relay, storage medium and equipment
  • Relay detection method, device, relay, storage medium and equipment
  • Relay detection method, device, relay, storage medium and equipment

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Embodiment approach

[0045] According to an embodiment of the relay detection method of the present invention, it further includes: preset detection times N; if the relay is judged to be abnormal for N times, then it is determined that the relay is damaged. The value range of N is 1-8. Preferably, N=5. Specifically, the number of detections can be set to 5 times, and the detection results of the 5 times are respectively △I 1 ~△I 5 , if the relative change of current △I tends to 0 in the results of 5 tests, it can be judged that the relay is damaged.

[0046] As mentioned above, conventional detection only depends on judging whether the current is 0 to make a judgment. If the relay is slightly adhered and multiple points are intermittently contacted, misjudgment will occur, because at this time I1 has current and no current. When only based on one The method of instantaneously judging whether the current is 0 is not accurate enough. And for air conditioners, the current of high-efficiency model...

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Abstract

The invention provides a relay detection method and device, a relay, a storage medium and a device. The relay detection method comprises the steps of presetting a detection period, and detecting the work current initial value of an air-conditioner at the starting time of the detection period, and sending a disconnection instruction to the relay, and re-detecting the work current final value of theair-conditioner at the finishing time of the detection period; determining whether the relay is abnormal or not based on the work current final value and the work current initial value. The inventionis advantageous in that through detecting the relative variation of the current, it can be automatically detected whether components like a relay is damaged or not, and operation reliability can be raised; no additional device cost is required, and only logic optimization through program and algorithm is demanded; detection can be more accurate and more intelligent, and rapid determination can berealized.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a relay detection method, device, relay, storage medium and equipment. Background technique [0002] Some existing electrical equipment do not have a good control method for relay damage. Taking an air conditioner as an example, when the relay is damaged, the start and stop of the air conditioner cannot be controlled, which has a great impact on the reliability of the air conditioner. However, the current detection method is generally inferred by detecting current and temperature. Due to the insufficient accuracy of the induced current of the overcurrent protector (the tolerance is even ampere), misjudgment is prone to occur. The relay in the air conditioner has a certain lifespan. When it is damaged, the controller cannot intelligently and automatically identify it and disconnect it in time, resulting in quality problems. Contents of the invention [0003] The m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
Inventor 李江云夏光辉
Owner GREE ELECTRIC APPLIANCES INC