Multi-split air conditioner control method

A control method and technology of multiple air conditioners, applied in the field of air conditioners, can solve problems such as unacceptability, and achieve the effects of reducing noise, improving user experience, and shortening the opening time.

Active Publication Date: 2018-01-12
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

Users who are sensitive to this constant noise will find it difficult to accept

Method used

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] The one-to-many air conditioner includes an outdoor unit and a plurality of indoor units, and an expansion valve is arranged on the connecting pipeline between each indoor unit and the outdoor unit. The expansion valve is generally arranged on the liquid pipe of the indoor unit to regulate the flow of refrigerant flowing into the indoor unit. The liquid pipe of each indoor unit is connected with the liquid pipe of the outdoor unit. For example, see figure 1 As shown, an expansion valve V1 is arranged on the liquid pipe of the indoor unit 1, an expansion valve V2 is arranged on the liquid pipe of the indoor unit 2, an expansion valve V3 is arranged on the liquid pipe of the indoor unit 3, and an expansion valve V3 is arranged on the liquid p...

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Abstract

The invention discloses a multi-split air conditioner control method. The number N of off indoor units is obtained; if N is equal to 1, in each control period, expansion valves of the off indoor unitsare controlled to open and close at intervals for a first set time; if N is bigger than 1 but not bigger than a first set value, in each control period, the expansion valves of the N off indoor unitsare controlled to circularly open in sequence for a second set time, and at the same time, the expansion valve of one off indoor unit is opened; if N is bigger than the first set value, the expansionvalves of the off indoor units with a set number are circularly selected as one set in sequence to open for a third set time, and at the same time, the expansion valves of the selected set of off indoor units are opened; and if the set number is smaller than N, the openness of the expansion valves is a set openness. The control method shortens the opening time of the expansion valve of each off indoor unit, shortens the refrigerant noise lasting time of each off indoor unit, reduces the noise of each off indoor unit, and improves the user experiences.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a control method for one-to-many air conditioners. Background technique [0002] One-to-many air conditioners are an air-conditioning system composed of one outdoor unit and multiple indoor units. The indoor unit uses an electronic expansion valve to adjust the flow of refrigerant. [0003] In order to ensure the amount of refrigerant circulation, the electronic expansion valve of the shutdown indoor unit needs to be opened to 8%. Since the refrigerant flows through the valve body of the electronic expansion valve, a noise similar to whistle will be generated, and since the shutdown indoor unit has no other moving parts, so There is almost no background noise, so the whistle will be more prominent. Users who are sensitive to this constant noise will find it difficult to accept. Contents of the invention [0004] The present invention provides a method for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F24F11/61
Inventor 张锐钢禚百田王海胜程绍江
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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