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Low-pressure protection control method and device and air conditioner

A low-voltage protection and control method technology, applied in heating and ventilation control systems, control inputs related to air characteristics, space heating and ventilation control inputs, etc., can solve problems such as compressor life reduction

Inactive Publication Date: 2021-06-22
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the invention is how to improve the problem of shortening the service life of the compressor caused by frequent start-stop or fluctuation of the compressor

Method used

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  • Low-pressure protection control method and device and air conditioner
  • Low-pressure protection control method and device and air conditioner
  • Low-pressure protection control method and device and air conditioner

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Embodiment Construction

[0054] 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.

[0055] see figure 1 , the embodiment of the present application provides an air conditioner 1, which can be configured to be installed in a designated area, and provide air conditioning to the designated area, so as to improve the comfort of the designated area and meet the user's comfort requirements. Wherein, the air conditioning functions provided by the air conditioner 1 may include but not limited to temperature regulation, humidity regulation, fresh air and air circulation speed regulation.

[0056] The air conditioner 1 includes an outdoor unit configured to be installed inside a designated area, and an indoor unit installed outside the designated area. The indoor unit and the outdoor unit are connected, and the refrigerant can cir...

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Abstract

The invention provides a low-pressure protection control method and device and an air conditioner, and relates to the technical field of air conditioners. The low-pressure protection control method comprises the steps that a return air temperature value, an evaporator outlet temperature value, an oil temperature value and a coil pipe temperature value are received; and according to the return air temperature value, the evaporator outlet temperature value, the oil temperature value and the coil pipe temperature value, a low-pressure protection instruction or a normal operation instruction is sent out so as to control frequency reduction or shutdown of a compressor of the air conditioner or control normal operation of the compressor. The invention further provides the low-pressure protection control device and the air conditioner. The low-pressure protection control method can be executed by the low-pressure protection control device and the air conditioner. According to the low-pressure protection control method and device and the air conditioner, the problem that the service life of the compressor is shortened due to frequent start-stop or fluctuation of the compressor can be solved.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to a low voltage protection control method, device and air conditioner. Background technique [0002] With the development of modern society, inverter air conditioners are becoming more and more popular among consumers. Although users have higher and higher requirements for the performance, comfort, and noise of air conditioners, which is an important direction for later air conditioner design, but in special use scenarios and special ambient temperatures, the reliability requirements for inverter air conditioners are also getting higher and higher. . [0003] At present, the small frequency conversion central air conditioner mainly adopts the rotary compressor, and the rotary compressor does not have super liquid shock resistance due to its own characteristics. A large amount of liquid refrigerant will have the risk of low pressure, and often in order to ensure t...

Claims

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Application Information

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IPC IPC(8): F24F11/32F24F11/64F24F11/65F24F11/86F24F11/88F24F110/10F24F140/20
CPCF24F11/32F24F11/64F24F11/65F24F11/86F24F11/88F24F2110/10F24F2140/20
Inventor 赵攀汪云强赵虹宇刘赛兰
Owner NINGBO AUX ELECTRIC
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