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Air-conditioner with one outdoor set and multiple indoor sets and its control method

A control method and air conditioner technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of indoor unit refrigerant leakage, user injury, adverse consequences, etc., to reduce leakage, Effects of protecting the environment and improving reliability

Inactive Publication Date: 2005-01-19
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if a refrigerant leakage occurs in a certain indoor unit, a large amount of refrigerant distributed to each indoor unit through the pipelines L1 and L2 will all leak through the indoor unit where the refrigerant leakage occurs, which will cause serious adverse consequences.
Especially when performing cooling or heating operation, in order to save electric energy and improve the cooling or heating effect, it is often necessary to close the indoor space for air conditioning, and the leakage of the indoor unit refrigerant will cause serious injury or damage to users in the closed space. more serious consequences

Method used

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  • Air-conditioner with one outdoor set and multiple indoor sets and its control method
  • Air-conditioner with one outdoor set and multiple indoor sets and its control method
  • Air-conditioner with one outdoor set and multiple indoor sets and its control method

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Embodiment Construction

[0021] As mentioned above, the one-to-many air conditioner includes an outdoor unit and multiple indoor units, and the outdoor unit and the multiple indoor units are connected through the same pipeline. A plurality of indoor units are respectively arranged in a plurality of separate spaces, and the air in the indoor space is conditioned by heat exchange. In order to perform heat exchange, a plurality of indoor units suck in refrigerant through pipes connected to the outdoor units. Since all the indoor units in this one-to-many air conditioner are connected to the same pipeline, it will pose a threat to the user's personal safety when refrigerant leakage occurs. Such as figure 2As shown, in the refrigeration cycle system of one-driver-multiple air conditioners provided by the present invention, one outdoor unit 100 is connected with multiple indoor units 200, 300, 400.... At this time, the capacity of the outdoor unit 100 matches the total capacity of the plurality of indoor...

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Abstract

The invention discloses a one-mainframe-multi-evaporator air conditioner and a control method therefore. The air conditioner comprises a detection device for detecting refrigerant pressure, a refrigerant cutoff device for cutting off refrigerant flow and a refrigerant recovery device. The control method mainly includes stage of detecting abnormal pressure value because of refrigerant leakage, stage of cutting off refrigerant flowing in multi indoor set from an outdoor set when pressure change being detected, and stage of recovering residual refrigerant in the indoor sets after refrigerant flow being cut off. The invention can reduce refrigerant leakage of the one-mainframe-multi-evaporator air conditioner.

Description

technical field [0001] The present invention relates to a one-drag multi-air conditioner and its control method, in particular to a one-drag multi-air conditioner capable of preventing personal injury when any indoor unit leaks refrigerant during the operation of the air conditioner and its control method. method. Background technique [0002] In buildings with multiple compartments such as schools and companies, one-to-many air conditioners are usually used to adjust the temperature of the room. This one-to-many air conditioner mostly adopts a structure in which one outdoor unit is connected to multiple indoor units. One outdoor unit and a plurality of indoor units are connected to each other to form a refrigeration cycle system. figure 1 It is a structural diagram of the refrigeration cycle system of one-to-many air conditioners in the prior art. Such as figure 1 As shown, this prior art one-drive-multi-air conditioner refrigerating cycle system is connected to one out...

Claims

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Application Information

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IPC IPC(8): F24F11/02
Inventor 林成宇
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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