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Air conditioner

A technology for air conditioners and pressure reducers, which is applied to air conditioning systems, space heating and ventilation, and irreversible cycle compressors, etc., can solve the problems of air conditioners stopping in the middle of operation, unable to control the driving speed of compressors, and difficulty, etc. achieve the effect of preventing temperature rise

Inactive Publication Date: 2003-10-15
SANYO ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the outdoor air temperature is high, if it cannot cope with the heavy load, the protective device of the air conditioner will operate, and the operation of the air conditioner may stop halfway.
However, when using a compressor driven at a constant speed in order to make the price cheap, it is difficult to configure a structure corresponding to the above-mentioned low load and high load because the driving speed of the compressor cannot be controlled.

Method used

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Embodiment Construction

[0027] Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a separate air conditioner, mainly composed of an outdoor unit 2, piping between units 3, and indoor units 4 and 5 arranged in different rooms. The air conditioner is equipped with a plurality of indoor units, so it is a multi-model air conditioner.

[0028] The outdoor unit 2 is equipped with a compressor 6 for compressing refrigerant, an outdoor heat exchanger 7, a decompression device 8 using a capillary tube, switching valves 9, 10 using an on-off valve, mufflers 11, 12, and an auxiliary valve using a capillary tube. Pressure reducing devices 13, 14, backup valves 15, 16, backup valves 17, 18, muffler 19, pressure accumulator 20. 21A, 21B, 21C, 21D, 21E, 21F, 21G, 21H, 21I are used to connect these machines refrigerant pipes. 22 is the first bypass pipe connecting the refrigerant pipe 21B and the refrigerant pipe 21I, and a first on-off valve 23 and a cap...

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Abstract

The invention provides a cheap air conditioner applicable for both low load and high load, which is provided with a first bypass pipe that makes partial refrigerants for hollow circulation, simultaneously the first bypass pipe is arranged with a first opening-closing valve and a first capillary pipe, and the invention is also provided with a second bypass pipe that makes partial refrigerants be guided into the suction side of compressor, simultaneously a second opening-closing valve and a second capillary pipe are arranged at the second bypass pipe, when the load of air conditioner and outdoor air load are large, the first opening-closing valve is opened so as to prevent the refrigerant from rising, when the load of the air conditioner is small, the second opening-closing valve is opened, the partial refrigerants are guided into the suction side of compressor, therefore the invention can adjust the circulation amount of refrigerants.

Description

technical field [0001] The present invention relates to an air conditioner of a so-called multi-type air conditioner equipped with a plurality of indoor heat exchangers. Background technique [0002] An example of an air conditioner for indoor cooling includes, for example, the air conditioner described in JP-A-50-34343. This air conditioner is equipped with a refrigeration cycle system that connects a compressor, an outdoor heat exchanger, a decompression device, and an indoor heat exchanger with refrigerant pipes. [0003] In the above-mentioned air conditioner, a plurality of (for example, two) indoor heat exchangers connected in parallel are provided, and such an air conditioner is called a multi-type air conditioner. In this type of air conditioner, when only one indoor heat exchanger is used (low load) or when both are used, the circulating volume of the refrigerant is different, so a structure to control the circulating volume of the refrigerant is required, for exam...

Claims

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Application Information

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IPC IPC(8): F25B1/00F24F5/00
CPCF24F11/84F24F2140/50F24F2110/12F25B2600/2501F25B41/26
Inventor 白石彰福本孝之石崎泰英
Owner SANYO ELECTRIC CO LTD
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