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Variable frequency air conditioner and control method and control device thereof

An inverter air conditioner and a control method technology are applied in the directions of control input related to air characteristics, space heating and ventilation control input, control input related to environmental factors, etc. and other problems, to achieve the effect of balancing cooling capacity, improving stability and reliability

Pending Publication Date: 2022-07-29
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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Problems solved by technology

Although the use of refrigerant can improve the cooling effect of the power module, part of the refrigerant used to cool the power module will affect the amount of refrigerant that provides the heating / cooling capacity for the air conditioner system, thereby affecting the cooling capacity of the air conditioner. heat capacity

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  • Variable frequency air conditioner and control method and control device thereof
  • Variable frequency air conditioner and control method and control device thereof
  • Variable frequency air conditioner and control method and control device thereof

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Embodiment Construction

[0053] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0054] It should be noted that the technical solutions between the various embodiments of the present invention can be combined with each other, but must be based on the realization by those of ordinary skill in the art. The combination of technical solutions does not exist and does not fall within the protection scope of the present invention.

[0055] Aiming at the problem that the existing inverter air conditioner lacks a technical solution for reasonable distribution and control of the refrigerant in the technology of using refrigerant to cool the power module, the present invention creatively proposes to set a first electronic expansion device in the refrigerant main circuit of the inverter air conditioner A second electronic expansion valv...

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Abstract

The invention discloses a variable-frequency air conditioner and a control method and device thereof so as to improve the stability and reliability of operation of an air conditioner system and achieve the function of an intelligent air conditioner. The control method comprises the steps that when the variable frequency air conditioner runs, the current outdoor environment temperature is obtained; judging whether the current outdoor environment temperature meets a preset outdoor environment temperature condition or not; when the current outdoor environment temperature meets the preset outdoor environment temperature condition, the current power module temperature and the current indoor temperature difference are obtained, and the opening degree of a first electronic expansion valve and the opening degree of a second electronic expansion valve are controlled according to the current power module temperature and the current indoor temperature difference; and when the current outdoor environment temperature does not meet the preset outer environment temperature condition, the opening degree of the first electronic expansion valve and the opening degree of the second electronic expansion valve are controlled according to the current power module temperature.

Description

technical field [0001] The present invention belongs to the technical field of air conditioning, in particular, to an air conditioner, and more specifically, to an inverter air conditioner and a control method and control device thereof. Background technique [0002] Inverter air conditioners are widely used due to their advantages of fast temperature regulation, high temperature control accuracy, low operating noise and low energy consumption. A core component of the inverter air conditioner is the power module. When the inverter air conditioner works, the power module generates a large amount of heat and the temperature rises rapidly. If the heat can not be dissipated in time, the inverter air conditioner will fail or shut down due to the high temperature of the power module, which will affect the normal and stable operation of the air conditioner. [0003] In order to improve the cooling effect of the power module, the existing inverter air conditioner uses refrigerant t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/89F25B41/34F25B49/02F24F110/12F24F130/10F24F110/10
CPCF24F11/64F25B49/022F25B41/34F24F11/89F25B2600/021F24F2110/12F24F2130/10F24F2110/10Y02B30/70
Inventor 何振华黄子轩王凤春朱连花
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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