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Multi air-conditioner for simultaneously cooling/heating and method for controlling the same

A technology for cooling, heating and control methods, which can be used in refrigerators, heating methods, air conditioning systems, etc., and can solve problems such as refrigerant temperature reduction.

Inactive Publication Date: 2008-12-24
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the temperature of the refrigerant in the indoor heat exchanger decreases, and a freezing phenomenon occurs in which dew condensed on the indoor heat exchanger is frozen.

Method used

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  • Multi air-conditioner for simultaneously cooling/heating and method for controlling the same
  • Multi air-conditioner for simultaneously cooling/heating and method for controlling the same
  • Multi air-conditioner for simultaneously cooling/heating and method for controlling the same

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Embodiment Construction

[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] As shown in Fig. 1 and Fig. 2, the multi-connected air conditioner 100 for simultaneously cooling and heating provided according to the embodiment of the present invention includes: an outdoor unit 200 arranged outdoors; a plurality of indoor units 300 arranged indoors; Each indoor unit 300 performs cooling operation or heating operation of the cooling and heating conversion unit 400, and the control unit 500 controls the overall control of the multi-connected air conditioner 100 that performs cooling and heating at the same time.

[0040] The outdoor unit 200 includes: a compressor 210 for compressing refrigerant; an outdoor heat exchanger 220 for exchanging heat between the refrigerant and outdoor air; cooling or heating is set according to the operation mode of the multi-connected air conditioner 100 for cooling and heating at the...

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Abstract

A multi air-conditioner for simultaneously cooling / heating room air and a method for controlling the same are disclosed. The multi air-conditioner for simultaneously cooling / heating room air includes: a high-pressure gas pipe, a low-pressure gas pipe, and a liquid line, which are connected between at least one outdoor unit and a plurality of cooling / heating switching sets; a flow-regulating valve mounted to a bypass pipe connected between the high-pressure gas pipe and the liquid pipe; and a controller for increasing an opening degree of the flow-regulating valve, if a heating rate is not below a reference rate during a heating-biased operation and is equal to or less than a required cooling capacity of an indoor cooling unit during the heating-biased operation.

Description

technical field [0001] The invention relates to a multi-connected air conditioner capable of cooling and heating at the same time and a control method thereof, in particular to a method for preventing excessive operation of a compressor when performing heating as the main operation, preventing stagnation of refrigerant in an outdoor heat exchanger, A multi-connected air conditioner capable of cooling and heating while preventing freezing of an indoor heat exchanger and a control method thereof. Background technique [0002] Generally, an air conditioner is a device that cools or heats an indoor space using a refrigeration cycle. Recently, a multi-connected air conditioner that more efficiently cools or heats a room divided into multiple independent spaces has been introduced on the market. The multi-connected air conditioner consists of an outdoor unit and multiple Composition of indoor unit. [0003] However, this type of multi-connected air conditioner always performs co...

Claims

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Application Information

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IPC IPC(8): F24F1/00F24F11/00F24F11/053F24F11/76
CPCF25B13/00F25B47/006F25B2313/005F25B2313/007F25B2313/0231F25B2313/02741F25B2600/2501F25B2700/2106F25B2313/0294F24F11/42
Inventor 金成九
Owner SAMSUNG ELECTRONICS CO LTD
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