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Expansion valve control method and device and air conditioner

A control method and a technology of a control device, applied in space heating and ventilation control input, control input related to air characteristics, heating method, etc., can solve problems affecting user experience, etc.

Active Publication Date: 2018-12-18
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the sudden closing of the expansion valve, there will be sizzling airflow noise, which will directly affect the user experience

Method used

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  • Expansion valve control method and device and air conditioner
  • Expansion valve control method and device and air conditioner
  • Expansion valve control method and device and air conditioner

Examples

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Effect test

no. 1 example

[0060] Please refer to figure 2 , an expansion valve control method provided by an embodiment of the present invention. The opening degree of an expansion valve 5 is preset in the air conditioner 1 when it reaches temperature and stops. Optionally, the above expansion valve control method includes:

[0061] Step S101, collecting ambient temperature information at preset time intervals.

[0062] In the embodiment of the present invention, the temperature sensor corresponding to the indoor unit collects ambient temperature information of the indoor environment corresponding to the indoor unit at preset time intervals, and feeds back to the controller 3 .

[0063] Step S102, when the ambient temperature information is not less than the sum of the predetermined temperature and the preset temperature compensation value, a warm shutdown instruction is generated.

[0064] In the embodiment of the present invention, when the controller 3 determines that the received ambient temper...

no. 2 example

[0088] Please refer to Figure 4 , the embodiment of the present invention provides an expansion valve control device 6 . The expansion valve control device 6 is applied to the air conditioner 1, and the opening degree of an expansion valve 5 is preset in the air conditioner 1 to stop at temperature. The expansion valve control device 6 includes: an adjustment module 7, an acquisition module 8, and an acquisition module 9. A generation module 10 and a control module 11 .

[0089] The adjustment module 7 is configured to adjust the opening of the expansion valve 5 to a first opening value and operate at the first opening value for a first period of time according to the obtained temperature shutdown command, to turn the expansion valve 5 is lowered from the first opening value to a second opening value, wherein the first opening value is greater than the temperature shutdown opening, and the second opening value is smaller than the temperature reaching Shutdown opening.

[0...

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Abstract

The invention provides an expansion valve control method and device and an air conditioner. A up-to-temperature shutdown opening of an expansion valve is preset in the air conditioner, the expansion valve control method comprises the steps that when the opening of the expansion valve is reduced to a first opening value according to the obtained up-to-temperature shutdown instruction and the expansion valve operates for the first duration with the first opening value, the opening of the expansion valve is reduced to a second opening value from the first opening value, the first opening value isgreater than the up-to-temperature shutdown opening, and the second opening value is less than the up-to-temperature shutdown opening; operating data corresponding to the operation of the air conditioner with the second opening value are obtained; and if the operating data of the air conditioner meet the preset conditions, the opening of the expansion valve is restored to the up-to-temperature shutdown opening to enable the air conditioner to be maintained in a shutdown mode. In the way, airflow noise of the air conditioner can be effectively reduced or eliminated in the whole shutdown mode so as to avoid the impact on the experience of users.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an expansion valve control method and device and an air conditioner. Background technique [0002] During the heating process of the air conditioner, when the indoor temperature rises to the specified temperature, in order to avoid further heating and exceed the comfort range of the indoor temperature, the air conditioner usually enters the shutdown mode. When entering the shutdown mode, in order to ensure that the heating can be quickly restored after exiting this mode, the opening of the expansion valve is usually only small. However, due to the sudden closing of the expansion valve, there will be sizzling airflow noise, which will directly affect the user's experience. Contents of the invention [0003] In view of this, the present invention aims to propose a method for controlling the expansion valve to reduce the noise generated when the air conditioner enters th...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/84F24F110/10
CPCF24F11/64F24F11/84F24F2110/10
Inventor 张坤坤刘合心任小辉黄春陈东陈华
Owner NINGBO AUX ELECTRIC
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