Water heater, electronic expansion valve control method and device and readable storage medium

A technology of electronic expansion valve and control method, which is applied in the field of electronic expansion valve control, hot water machine and readable storage medium, and electronic expansion valve control device, which can solve the problems of compressor liquid shock and long adjustment time, and improve reliability Sex, avoid the effect of adjusting for too long

Active Publication Date: 2018-12-11
HEFEI MIDEA HEATING & VENTILATING EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the initial opening of the electronic expansion valve is too large, and the ambient temperature of the hot water machine can vary from -15°C to 46°C, the water temperature in the hot water machine can vary from 9°C to 60°C, and the ambient tem

Method used

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  • Water heater, electronic expansion valve control method and device and readable storage medium
  • Water heater, electronic expansion valve control method and device and readable storage medium
  • Water heater, electronic expansion valve control method and device and readable storage medium

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Example Embodiment

[0045] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0046] The main solution of the embodiment of the present invention is to adopt an electronic expansion valve control method, which includes the following steps: when receiving a start-up instruction of the hot water machine, obtain the ambient temperature, the water temperature in the water tank, and the number of shutdown protections, where the number of shutdown protections is: The number of compressor shutdown protections in the preset startup cycle before the current startup cycle; determine the initial opening of the electronic expansion valve according to the ambient temperature, water temperature and the number of shutdown protections; control the electronic expansion valve to open to the initial opening.

[0047] Due to the prior art, when the unit is turned on, if the opening of the electronic expansion...

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Abstract

The invention discloses an electronic expansion valve control method. The electronic expansion valve control method comprises the following steps that when a startup instruction of a water heater is received, the environment temperature, the water temperature in a water tank and the shutdown protection frequency are obtained, and the shutdown protection frequency is the compressor shutdown protection frequency within the preset startup periods before the current startup period; according to the environment temperature, the water temperature and the shutdown protection frequency, the initial aperture of an electronic expansion valve is determined; and the electronic expansion valve is controlled to be opened to the initial aperture. The invention further discloses an electronic expansion valve control device, the water heater and a readable storage medium. According to the electronic expansion valve control method and device, the water heater and the readable storage medium, when the water heater is started, the electronic expansion valve can rapidly meet the system aperture requirement, and reliability of a compressor is improved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an electronic expansion valve control method, an electronic expansion valve control device, a water heater and a readable storage medium. Background technique [0002] Most of the current heat pump water heaters use the electronic expansion valve as the throttling component. The electronic expansion valve generally has an initial opening. After the unit is turned on and heated, the electronic expansion valve starts to adjust from the initial opening according to the set conditions. , the optimum opening will be reached after a period of adjustment. [0003] When the unit is started, if the initial opening of the electronic expansion valve is too small, the compressor will be shut down due to high pressure, high temperature, high current and other reasons. If the initial opening of the electronic expansion valve is too large, and the ambient temperature of the hot water mac...

Claims

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Application Information

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IPC IPC(8): F24H9/20
CPCF24H9/2007
Inventor 陈有文马焕桥
Owner HEFEI MIDEA HEATING & VENTILATING EQUIP
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