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Multi-connected air-conditioning unit

A multi-connected air conditioner and unit technology, which is applied to air conditioning systems, compressors, refrigerators, etc., can solve problems such as shortened service life, uneven lubricating oil content, and burnout

Active Publication Date: 2012-01-04
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The multi-connected air conditioner unit in the prior art has the following defects: since the unit includes multiple outdoor unit modules, after a long period of operation, the content of lubricating oil in each outdoor unit module must be uneven, and there will inevitably be some There is more oil in the outdoor unit modules, and some outdoor unit modules have less oil. If the oil deviation of the unit is serious, the compressor of the outdoor unit module that is short of oil will increase the loss, shorten the service life, and even burn out. Bad

Method used

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 , figure 2As shown, the multi-connected air conditioner unit of the present invention includes a plurality of outdoor unit modules and an oil equalizing main pipe 2 for communicating with each outdoor unit module. Each outdoor unit module includes a compressor 1 , and each outdoor unit module also includes an oil reservoir 3 , an oil equalizing pipe 4 , a first oil return pipe 5 , an oil separator 6 and a second oil return pipe 7 . The outlet end of the compressor 1 communicates with the inlet end of the oil separator 6 through the refrigerant discharge pipe 8, and the top of the oil separator 6 is provided with an air outlet hole in communication with the four-way reversing valve, and the inlet end of the compressor 1 passes through the second circuit The oil pipe 7 communicates with the second oil return hole at the...

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Abstract

The invention discloses a multi-connected air-conditioning unit which comprises a plurality of outdoor unit modules and an oil equalization main pipe (2), wherein each outdoor unit module comprises a compressor (1), as well as an oil storage device (3), an oil equalization branch pipe (4) and a first oil return pipe (5); as for each outdoor unit module, the outlet end of the compressor (1) is communicated with the inlet end of the oil storage device (3); the oil equalization opening of the oil storage device (3) is communicated with the oil equalization main pipe (2) through the oil equalization branch pipe (4); an oil equalization valve (11) is arranged on the oil equalization branch pipe (4); a first oil return hole of the oil storage device (3) is communicated with the inlet end of the compressor (1) through the first oil return pipe (5); and a first oil return valve (12) is arranged on the first oil return pipe (5). The reasonable oil equalization of each outdoor unit module can be ensured by the multi-connected air-conditioning unit.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a multi-connected air conditioner unit. Background technique [0002] The multi-connected air conditioner unit in the prior art includes at least two outdoor unit modules connected in parallel, at least one indoor unit module, and two refrigerant flow pipes connecting the indoor unit module and the outdoor unit module. If there is only one indoor unit module, then parallel connection The last outdoor unit module communicates with the indoor unit module through two refrigerant flow pipes; if there are multiple indoor unit modules, the parallel outdoor unit module communicates with the parallel connected indoor unit module through two refrigerant flow pipes. [0003] Each outdoor unit module includes a compressor, four-way reversing valve, outdoor heat exchanger (condenser in cooling mode, evaporator in heating mode) and throttling device, the outlet of the compressor and the four-w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/06F25B31/00
Inventor 郑坚江李朝珍陈科
Owner NINGBO AUX ELECTRIC
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