Control method and device for multi-split air conditioner and multi-split air conditioner

A technology of a multi-connected air conditioner and a control method, which is applied in the field of devices, multi-connected air conditioners and storage media, and the control method of a multi-connected air conditioner, which can solve problems such as the storage of refrigerant in indoor units, and achieve the effects of reducing the amount of refrigerant and improving energy saving

Active Publication Date: 2022-04-15
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It does not involve how to solve the problem of refrigerant accumulation in the indoor unit after the multi-split air conditioner is shut down during normal operation

Method used

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  • Control method and device for multi-split air conditioner and multi-split air conditioner
  • Control method and device for multi-split air conditioner and multi-split air conditioner
  • Control method and device for multi-split air conditioner and multi-split air conditioner

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Embodiment Construction

[0023] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0024] The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used...

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Abstract

The invention relates to the technical field of intelligent household appliances, and discloses a control method for a multi-split air conditioner, the multi-split air conditioner comprises a plurality of indoor units, and each indoor unit comprises a throttling device, an indoor heat exchanger and a refrigerant block valve which are connected in sequence; the control method comprises the steps that under the condition that a shutdown instruction is received, the operation mode of the indoor unit is obtained; according to the operation mode of the indoor unit, a target control scheme of a throttling device and a refrigerant block valve of the indoor unit is determined; and the indoor unit is controlled to execute the target control scheme. According to the method, the indoor unit is shut down in different operation modes, and the throttling device and the refrigerant cut-off valve are controlled to execute different control schemes, so that cut-off of refrigerants in different flow directions is achieved. In this way, the refrigerant amount in the shut-down indoor unit is reduced, and the energy-saving performance of the system is also improved. The invention further discloses a control device for the multi-split air conditioner, the multi-split air conditioner and a storage medium.

Description

technical field [0001] The present application relates to the technical field of smart home appliances, for example, to a control method and device for a multi-connected air conditioner, a multi-connected air conditioner and a storage medium. Background technique [0002] Multi-connected air conditioner means that in the same air conditioning and refrigeration system, there are one or more outdoor units and multiple indoor units. The indoor units are installed in different rooms. When some indoor units are turned off and some indoor mechanisms are running hot, the electronic expansion valve is closed so that more refrigerant will be accumulated in the turned off indoor units. As a result, the refrigerant in the turned-on indoor unit is insufficient, which affects the heating effect. In order to avoid the lack of refrigerant in the system, the electronic expansion valve of the indoor unit is opened to a certain opening degree when it is turned off. However, when the number ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/65F24F11/70F24F11/46F24F11/89F24F3/06
CPCF24F11/30F24F11/64F24F11/65F24F11/70F24F11/46F24F11/89F24F3/065Y02B30/70
Inventor 任善军毛守博卢大海远义忠焦华
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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