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Control method, device and air conditioner for reducing noise through external unit valve adjustment

A control method, air conditioner technology, applied in the direction of noise suppression, heating and ventilation control system, space heating and ventilation details, etc., can solve the problem of noise generated by the throttling device, reduce the exhaust temperature, improve the refrigerant Deterioration, improve the effect of poor system stability

Active Publication Date: 2021-07-16
NINGBO AUX ELECTRIC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the invention is the noise generated by the throttling device of the air conditioner, so as to improve the user experience

Method used

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  • Control method, device and air conditioner for reducing noise through external unit valve adjustment
  • Control method, device and air conditioner for reducing noise through external unit valve adjustment
  • Control method, device and air conditioner for reducing noise through external unit valve adjustment

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Embodiment Construction

[0045] For air conditioners, noise is one of the main indicators affecting user comfort. Regardless of whether it is a residential air conditioner or a commercial air conditioner, excessive noise will seriously affect the user experience. Therefore, how to solve the noise problem of air conditioners is currently a key issue in the air conditioner industry.

[0046] The throttling device of the air conditioner is a part that is prone to noise, because the pressure difference before and after throttling changes greatly, and it also hinders the flow of refrigerant. Especially in winter, the air conditioner will often perform defrosting and oil return operations under the condition of heating. After the defrosting and oil return are completed, the four-way valve will change direction, causing changes in high and low pressures. During this fluctuation process, it will cause When the pressure difference before and after the throttling device becomes large, there will be flow sound c...

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Abstract

Embodiments of the present invention provide a control method, device and air conditioner for reducing noise by adjusting a valve of an external unit, and relate to the technical field of air conditioning. The method includes: after the four-way valve of the air conditioner switches to the heating operation state and lasts for a preset time, acquiring the pressure difference data before and after the internal unit valve of the indoor unit of the air conditioner. It is judged whether the pressure difference data before and after the internal machine valve is greater than the first pressure difference threshold. If the pressure difference data before and after the valve of the indoor unit is greater than the first differential pressure threshold, the opening degree of the valve of the outdoor unit controlling the outdoor unit of the air conditioner is reduced by the first opening degree adjustment value. Obtain the discharge temperature data of the compressor of the air conditioner. Control the opening of the external unit valve according to the exhaust temperature data to reduce the suction superheat of the air conditioner. The method can adjust the opening of the valve of the external machine according to the pressure difference data before and after the valve of the internal machine to improve the noise problem. Moreover, the opening degree of the external unit valve is controlled according to the exhaust temperature data to improve adverse effects such as refrigerant deterioration and poor system stability caused by excessive exhaust temperature.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular, to a control method, device and air conditioner for reducing noise through external unit valve adjustment. Background technique [0002] For air conditioners, noise is one of the main indicators affecting user comfort. Whether it is a residential air conditioner or a commercial air conditioner, excessive noise will seriously affect the user experience. Therefore, solving the noise problem of air conditioners is a key issue in the industry at present. [0003] The throttling device of the air conditioner is a part that is prone to noise, because the pressure difference before and after throttling changes greatly, and it also hinders the flow of refrigerant. Especially in winter, the air conditioner will often perform defrosting and oil return operations under heating conditions. After the defrosting and oil return are completed, the four-way valve will change direc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/32F24F11/64F24F11/65F24F11/84F24F13/24F24F130/40
CPCF24F13/24F24F2013/247F24F11/32F24F11/64F24F11/65F24F11/84F24F2130/40
Inventor 刘合心陈华王猛
Owner NINGBO AUX ELECTRIC
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