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A control method for one dragging multiple air conditioners

A control method and multi-air conditioner technology, applied in the field of air conditioners, can solve unacceptable problems, achieve the effects of reducing noise, shortening opening time, and improving user experience

Active Publication Date: 2021-09-21
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • A control method for one dragging multiple air conditioners
  • A control method for one dragging multiple air conditioners
  • A control method for one dragging multiple air conditioners

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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 control method for one-to-many air conditioners, which obtains the number N of indoor units that are shut down; if N=1, in each control cycle, the expansion valves of the indoor units that are controlled to be shut down are opened and closed at intervals of the first set time; If 1<N≤the first set value, in each control cycle, the expansion valves of the N shut-down indoor units are controlled to cycle open for the second set time in turn, and only one expansion valve of the shut-down indoor units is opened at the same time; If N > the first set value, the expansion valves of the set number of shut-down indoor units are selected in turn as a group to open the third set time, and only the expansion valves of the selected group of shut-down indoor units are opened at the same time; When the fixed quantity is less than N, the opening when the expansion valve is opened is the set opening. Therefore, the control method of the present invention shortens the opening time of the expansion valve of each shut-down indoor unit, further shortens the duration of refrigerant noise of each shut-down indoor unit, reduces the noise of each shut-down indoor unit, and improves user experience .

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 Patents(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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