Air conditioner current protecting method and air conditioner

A current protection and air conditioning technology, which is applied to the current protection method of air conditioning and the field of air conditioning, can solve the problems of rough segmented control, unstable operation of the system, unreliable whole machine, etc.

Inactive Publication Date: 2018-09-28
四川长虹空调有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the current protection control of ordinary inverter air conditioners is mainly based on the reliability requirements of the air conditioner and the heat load of the air conditioner to carry out segmental control and protection parameters. This protection method itself has no problem, but the problem is that segmental control is too rough. Temperature segmental control, below a certain temperature is a protection parameter, above this temperature is another protection parameter, the discontinuity of this control method will greatly affect the performance of the air conditioner, so that the compressor can continue to maintain high In the case of high-frequency operation, the current advance protection limits the frequency rise and th

Method used

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  • Air conditioner current protecting method and air conditioner
  • Air conditioner current protecting method and air conditioner
  • Air conditioner current protecting method and air conditioner

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Effect test

Embodiment 1

[0080] Method embodiment 1: (corresponding to I1)

[0081] Air conditioner current protection methods such as image 3 As shown, it includes preset multiple ambient temperature ranges corresponding to the cooling mode, multiple input voltage ranges, and current protection parameters. The current protection parameters include a set of first current protection values, where each first current protection value All match one of the combinations of the ambient temperature range and the input voltage range. Specifically include the following steps:

[0082] S100: After the air conditioner is turned on and running, judge the operation mode: when the mode is cooling mode, execute step S110;

[0083] S110: Detect ambient temperature, input voltage and operating current;

[0084] S120: According to the ambient temperature range and the input voltage range corresponding to the ambient temperature and the input voltage in cooling mode, determine whether the working current reaches the ...

Embodiment 2

[0086] Method embodiment 2: (corresponding to I2)

[0087] Air conditioner current protection methods such as image 3 As shown, it includes preset multiple ambient temperature ranges corresponding to the heating mode, multiple input voltage ranges, and current protection parameters. The current protection parameters include a set of second current protection values, where each second current protection The values ​​match one of the combinations of the ambient temperature range and the input voltage range. Specifically include the following steps:

[0088] S100: After the air conditioner is turned on and running, judge the operation mode: when the mode is the heating mode, execute step S110;

[0089] S110: Detect ambient temperature, input voltage and operating current;

[0090] S120: According to the ambient temperature interval and the input voltage interval corresponding to the ambient temperature and the input voltage in the heating mode, determine whether the working c...

Embodiment 3

[0092] Method embodiment 3: (corresponding to I3)

[0093] Air conditioner current protection methods such as image 3 As shown, it includes preset multiple ambient temperature ranges corresponding to the cooling mode, multiple input voltage ranges and current protection parameters. The current protection parameters include a set of third current protection values, wherein each third current protection value All match one of the combinations of the ambient temperature range and the input voltage range. Specifically include the following steps:

[0094] S100: After the air conditioner is turned on and running, judge the operation mode: when the mode is cooling mode, execute step S110;

[0095] S110: Detect ambient temperature, input voltage and operating current;

[0096] S120: According to the ambient temperature range and the input voltage range corresponding to the ambient temperature and the input voltage in cooling mode, determine whether the working current reaches the...

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PUM

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Abstract

The invention discloses an air conditioner current protecting method. The method specifically comprises the steps of determining whether the air conditioner is in a refrigerating mode/ a heating modeafter the air conditioner is started to run; detecting the environmental temperature, the input voltage and the working current; determining whether the working current reaches the current protectingvalue which is matched with the environmental temperature range and the input voltage range based on the environmental temperature range and the input voltage range which are corresponding to the environmental temperature and the input voltage; and controlling a compressing mechanism to perform at least one of the following operations to realize current protecting: maintaining the frequency/ decreasing the frequency by one preset value F/ controlling the compressor to stop, and restarting after passing the preset stop time. According to the method, the environmental temperature and the input voltage are treated as the determining conditions, and the sectional protection is reasonable and fine; the current control stability is improved; the operation risk is reduced; the use comfort is improved; and the performances of the air conditioner can be effectively played.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner current protection method and an air conditioner. Background technique [0002] At present, the current protection control of ordinary inverter air conditioners is mainly based on the reliability requirements of the air conditioner and the heat load of the air conditioner to carry out segmental control and protection parameters. This protection method itself has no problem, but the problem is that segmental control is too rough. Temperature segmental control, below a certain temperature is a protection parameter, above this temperature is another protection parameter, the discontinuity of this control method will greatly affect the performance of the air conditioner, so that the compressor can continue to maintain high In the case of high-frequency operation, the current advance protection limits the frequency rise and the performance of th...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/89F24F11/30F24F11/65F24F11/86F24F11/88F24F110/10
CPCF24F11/30F24F11/64F24F11/65F24F11/86F24F11/88F24F11/89F24F2110/10
Inventor 杨涛岳冯欢李波王平王金龙
Owner 四川长虹空调有限公司
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