Method and device for adjusting working frequency of compressor and air conditioner

A technology of working frequency and compressor, applied in the direction of heating, mechanical equipment, space heating and ventilation, etc., can solve the problem of high exhaust pressure and achieve the effect of avoiding excessive exhaust pressure

Active Publication Date: 2019-10-15
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The problem solved by the invention is to quickly adjust the operating frequency of the compressor to avoid excessive exhaust pressure

Method used

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  • Method and device for adjusting working frequency of compressor and air conditioner
  • Method and device for adjusting working frequency of compressor and air conditioner
  • Method and device for adjusting working frequency of compressor and air conditioner

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Please refer to figure 1 , the air conditioner 100 includes: a memory 110 , a processor 120 and a communication unit 130 . The components of the memory 110 , the processor 120 and the communication unit 130 are electrically connected to each other directly or indirectly to realize data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines.

[0030] Wherein, the memory 110 is used to store programs or data. The memory 110 can be, but not limited to, random access memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM), programmable read-only memory (Programmable Read-Only Memory, PROM), which can Erasable P...

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PUM

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Abstract

The invention relates to the technical field of air conditioners, in particular to a method and device for adjusting the working frequency of a compressor and an air conditioner. The method comprisesthe steps of obtaining the outdoor environment temperature of an outdoor unit containing a compressor, if the outdoor environment temperature is not less than a temperature threshold value and the number of indoor units, in a working state, connected with the same outdoor unit is increased, calculating the target working frequency of the compressor according to the outdoor environment temperatureand the total load of the indoor units in the working state, and adjusting the current working frequency of the compressor according to the calculated target working frequency so as to avoid the problem of protection shutdown of the compressor caused by excessive exhaust pressure when more indoor units are started.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method and device for adjusting the working frequency of a compressor and an air conditioner. Background technique [0002] In the case of multi-line refrigeration operation, the compressor frequency is adjusted by PID according to the target evaporation pressure. When the exhaust pressure is higher than 3.8Mpa, in order to give priority to ensuring system reliability, the compressor frequency is adjusted by PID according to the target exhaust pressure. As the number of machines started increases, the evaporation pressure of the system increases due to the opening of the electronic expansion valve of the indoor unit. When the external ambient temperature is greater than the threshold, the ideal operating frequency of the compressor calculated by the air conditioning system will first increase and then decrease. The process, that is to say, in the process of increasing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/86F24F11/64F24F110/12
CPCF24F11/64F24F11/86F24F2110/12
Inventor 张秋玉刘合心刘潘陈华
Owner NINGBO AUX ELECTRIC
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