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Multiple machine-group air conditioner

An air conditioner and multi-unit technology, which is applied to compressors with multiple evaporators, refrigerators, compressors, etc., can solve the problems of reducing the heating performance and efficiency of indoor units, and unbalanced refrigerant distribution.

Inactive Publication Date: 2003-11-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional air conditioner controls the electronic expansion valve based on the difference between the suction temperature of the compressor and the inlet of the outdoor heat exchanger, so it cannot solve the problem of refrigerant split flow imbalance, thereby reducing the heating performance of the indoor unit and efficiency

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Fig. 1 is a structural diagram showing a refrigeration cycle of a multi-unit air conditioner in the present invention.

[0025]In Fig. 1, A represents the outdoor unit, B1 and B2 respectively represent the indoor units installed in different places indoors. The outdoor unit A includes a compressor 10 , a four-way valve 11 , an outdoor heat exchanger 12 , electronic expansion valves 13 and 14 corresponding to the indoor units B1 and B2 respectively, a collector 15 and a compressor discharge temperature sensor 16 . The indoor units B1 and B2 both include an indoor heat exchanger 18 , an indoor temperature sensor 19 , an outlet sensor 20 of the indoor heat exchanger and a temperature sensor 21 in the middle of the indoor heat exchanger.

[0026] The discharge end of the compressor 10 is connected to one end of the outdoor heat exchanger 12 through a...

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PUM

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Abstract

The invention discloses a multiple machine-group air conditioner including an outdoor machine-group, an indoor machine-group and an electromotive expansion valve. The air conditioner also includes an exhaust temperature detecting device for measuring exhaust temperature of the compressor and a control device for determining target exhaust temperature of the compressor to optimal satisfy the requirement for imbibing excessive heat degree of the compressor based on the required power of the indoor machine-group, and to control opening degree of the electromotive expansion valve based on the difference between the target exhaust temperature and the exhaust temperature measured by the exhaust temperature detecting device of the compressor.

Description

technical field [0001] The present invention relates to a multi-unit type air conditioner, more specifically, relates to a multi-unit type air conditioner which has an outdoor unit and a plurality of indoor units and can optimize the control cycle by controlling the opening and closing degree of the electronic expansion valve device. Background technique [0002] A multi-unit type air conditioner generally has one outdoor unit and a plurality of indoor units. The outdoor unit includes a compressor, four-way valve, outdoor heat exchanger and electronic expansion valve. Each indoor unit has an indoor heat exchanger. The compressor, four-way valve, each outdoor heat exchanger and each indoor heat exchanger are connected together to form a cycle. Each electronic expansion valve is placed in the condensation pipe for connecting the outdoor heat exchanger and each indoor heat exchanger. [0003] In the refrigeration operation mode of the multi-unit air conditioner, the high-te...

Claims

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Application Information

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IPC IPC(8): F24F11/00F24F11/02F25B5/02
CPCF25B2600/2513F25B2700/21152F25B41/34Y02B30/00
Inventor 郑圭夏崔鹤东
Owner SAMSUNG ELECTRONICS CO LTD
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