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Compressor switch fault protection method and device

A switch fault and fault protection technology, which is applied in the field of compressors, can solve problems such as failure to control the compressor switch normally, affecting the normal use of the compressor, and damage to the AC contactor.

Active Publication Date: 2020-12-11
GUANGDONG PHNIX ECO ENERGY SOLUTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of compressor switch control, if the AC contactor is undervoltage, poor wiring, etc., the AC contactor will be damaged
At this time, even if the main board controller outputs the control signal, the compressor switch cannot be controlled normally, which will affect the normal use of the compressor.
Moreover, when the compressor fails to start, the motherboard controller will think that the compressor has been turned on, and then control the water pump and fan to turn on. At this time, since the compressor is turned off, other modules of the system will do useless work
When the compressor fails to shut down, the motherboard controller will think that the compressor has been shut down, and then control the water pump and fan to shut down. At this time, the compressor cannot exchange heat, which will cause the compressor to heat up rapidly and burn out.

Method used

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  • Compressor switch fault protection method and device
  • Compressor switch fault protection method and device
  • Compressor switch fault protection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] figure 1 A flow chart of a compressor switch failure protection method provided in Embodiment 1 of the present application is given. The compressor switch failure protection method provided in this embodiment can be executed by a compressor switch failure protection device. The compressor switch failure protection The device can be realized by means of software and / or hardware, and the compressor switch fault protection device can be composed of two or more physical entities, or can be composed of one physical entity. Generally speaking, the compressor switch failure protection device may be a compressor controller, a main board controller, and the like.

[0044] In the following, the motherboard controller is taken as the main body to implement the compressor switch failure protection method as an example for description. refer to figure 1 , the compressor switch failure protection method specifically includes:

[0045] S110. After controlling the compressor to be t...

Embodiment 2

[0067] On the basis of the above examples, Figure 5 It is a schematic structural diagram of a compressor switch failure protection device provided in Embodiment 2 of the present application. refer to Figure 5 , the compressor switch failure protection device provided in this embodiment specifically includes: a judgment module 21 , a protection module 22 and a recovery module 23 .

[0068] Wherein, the judging module 21 is used to detect the operating current of the compressor in real time after controlling the compressor to be turned on or off, and judge whether the compressor has an on-fault or an off-fault based on the running current;

[0069] The protection module 22 is used to perform a fault protection action after judging that the compressor has an on-fault or off fault, and the fault protection action includes controlling the associated equipment corresponding to the compressor to be turned on or off;

[0070] The recovery module 23 is configured to perform fault r...

Embodiment 3

[0074] Embodiment 3 of the present application provides an electronic device, referring to Figure 6 , the electronic device includes: a processor 31 , a memory 32 , a communication module 33 , an input device 34 and an output device 35 . The number of processors in the electronic device may be one or more, and the number of memories in the electronic device may be one or more. The processor, memory, communication module, input device and output device of the electronic device can be connected through a bus or in other ways.

[0075] The memory 32, as a computer-readable storage medium, can be used to store software programs, computer-executable programs and modules, such as program instructions / modules corresponding to the compressor switch failure protection method described in any embodiment of the present application (for example, compressor Judgment module, protection module and recovery module in the switch fault protection device). The memory may mainly include a prog...

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PUM

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Abstract

The embodiments of the invention disclose a compressor switch fault protection method and device. According to the technical scheme, after a compressor is controlled to be started or shut, a running current of the compressor is detected in real time, and whether the compressor has a starting fault or a shutting fault or not is judged based on the running current; a fault protection action is executed to control associated equipment corresponding to the compressor to be started or shut after it is judged that that the compressor has the starting fault or the shutting fault; and after the faultprotection action is executed, fault recovery is performed based on a real-time detection result of the running current. By adopting the technical means, compressor switch fault judgment is performedbased on running current detection, and fault protection action is correspondingly performed, so that a compressor unit is prevented from being damaged, and the running safety of the compressor is guaranteed.

Description

technical field [0001] The embodiments of the present application relate to the technical field of compressors, and in particular to a compressor switch failure protection method and device. Background technique [0002] At present, when the compressor is under on-off control, the main board controller outputs a control signal to the compressor for on-off control. Its control link is generally "main board controller - AC contactor contact - AC contactor - compressor". During the switch control process of the compressor, if the AC contactor is undervoltage, poor wiring, etc., the AC contactor will be damaged. At this time, even if the main board controller outputs the control signal, it still cannot control the compressor switch normally, thereby affecting the normal use of the compressor. Moreover, when the compressor fails to start, the motherboard controller will think that the compressor has been turned on, and then control the water pump and fan to turn on. At this tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/10F04B49/06F04B39/06
CPCF04B49/10F04B49/065F04B39/06F04B39/066
Inventor 陈学舒雷朋飞张利罗金星蒋浩谢卓锐
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION