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Electronic expansion valve device, its control method and multi-connected system

A technology for electronic expansion valves and multi-line systems, applied in valve devices, valve operation/release devices, refrigerators, etc., can solve problems such as liquid return in multi-line systems, to ensure reliable operation, ensure reliability, and reduce installation costs. The effect of fees

Active Publication Date: 2019-07-05
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the problem of liquid return in the multi-connection system caused by the electronic expansion valve of the indoor unit not closing when the power is off in the current multi-connection project, and to provide a method that can prevent the flow channel from being completely blocked due to power failure. The electronic expansion valve device with liquid problem, also provides a control method applied to the above electronic expansion valve device, and provides a multi-line system containing the above electronic expansion valve

Method used

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  • Electronic expansion valve device, its control method and multi-connected system
  • Electronic expansion valve device, its control method and multi-connected system
  • Electronic expansion valve device, its control method and multi-connected system

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Experimental program
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Embodiment approach

[0099] As an implementable manner, the control method of the electronic expansion valve device 100 further includes:

[0100] Control the main board to adjust the opening of the main valve assembly 120;

[0101] The control board controls the power-on and power-off of the auxiliary control parts according to the opening degree of the main valve assembly 120 .

[0102] The electronic expansion valve device 100 can ensure the safety of the electronic expansion valve device 100 for a long time and prolong the service life of the electronic expansion valve device 100 by controlling the main board to adjust the opening between the blocking member and the flow channel 111 .

[0103] Further, adjusting the opening between the auxiliary blocking member 131 and the circulation channel 111 includes the following steps:

[0104] Controlling the power-on and power-off of the auxiliary control part according to the opening degree of the main valve assembly 120 by the control board include...

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Abstract

The present invention provides an electronic expansion valve device, comprising: a base, the base is provided with a flow passage; a main valve assembly is installed on the base; and an auxiliary valve assembly is installed on the base ; The auxiliary valve assembly can open the flow channel after being powered on; the auxiliary valve assembly can block the flow channel after being powered off. The auxiliary valve assembly ensures that the electronic expansion valve device can completely block the circulation channel after power failure, which effectively solves the problem of liquid return in the multi-line system caused by the electronic expansion valve of the indoor unit in the current multi-line project. Use performance to improve the reliability of multi-line system operation. The invention also provides a control method and a multi-connection system of the electronic expansion valve device.

Description

technical field [0001] The invention relates to the technical field of air conditioning equipment, in particular to an electronic expansion valve device, a control method thereof, and a multi-connection system. Background technique [0002] Multi-split can supply cooling or heating to multiple users at the same time, so it is often used in places with a large number of residents such as hotels, hotels, and office buildings. Normal engineering installation requirements for multi-connectors: multi-connectors need to be powered uniformly and be independent from other equipment such as lighting devices. However, it is often difficult to ensure this point in actual application. Therefore, some indoor units may have independent power supply in multi-connected units, and these indoor units may be cut off during use (for example, the power supply of indoor units on a certain floor of an office building is independent). , all rooms on this floor will be powered off when the personne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F25B41/06F25B49/02F25B41/34
CPCF16K31/0655F25B49/02F25B41/31Y02B30/70
Inventor 赖海龙梁纯龙舒宏张世航覃宗华符超何林唐立新曾奕
Owner GREE ELECTRIC APPLIANCES INC
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