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Air conditioner outdoor unit

A technology of air-conditioning outdoor unit and air-conditioning indoor unit, which is applied in the direction of air-conditioning system, mechanical equipment, high-efficiency adjustment technology, etc. It can solve the problem that the flow path design of heating mode and defrosting mode cannot be optimized at the same time, and shorten the overall defrosting Time, improve the overall heat transfer efficiency, improve the effect of defrosting speed

Active Publication Date: 2022-01-14
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an outdoor unit of an air conditioner, which solves the technical problem that the flow path design of the heat mode and defrosting mode of the existing outdoor unit of the air conditioner cannot be optimal at the same time

Method used

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Embodiment Construction

[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0037] Such as image 3 As shown, in the outdoor unit of the air conditioner proposed by the present invention, the gas pipe (16) and the liquid pipe (17) are connected to the indoor unit of the air conditioner; the compressor (1) is connected in series with the oil separator (2); the outdoor heat exchanger includes an upper heat exchange part (5) and the lower heat exchange part (6); the first end 1 of the four-way reversing valve (3) is connected to the gas pipe (16), the second end 2 is connected to the oil separator (2), and the third end 3 passes through The C pipeline (4) is connected to the outdoor heat exchanger, and the fourth end 4 is connected to the compressor (1); the two-way variable flow pipeline includes a parallel throttling piece (12) and the first one-way valve (13); the upper heat exchange The part (...

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Abstract

The invention discloses an air conditioner outdoor unit which comprises a bidirectional variable flow pipeline. An outdoor heat exchanger of the air conditioner outdoor unit comprises an upper heat exchange part and a lower heat exchange part; the bidirectional variable flow pipeline comprises a throttling element and a first one-way valve which are connected in parallel; in the heating mode, a refrigerant enters the lower heat exchange part from the throttling element for heat exchange, and the flow of the refrigerant flowing through the lower heat exchange part is reduced through the throttling element, so that the heat exchange efficiency of the lower heat exchange part is improved; during defrosting, the refrigerant flowing through the lower heat exchange part does not pass through the throttling element, so that the refrigerant flow of the lower heat exchange part is increased, the defrosting speed of the lower heat exchange part is increased, and the defrosting time of the lower heat exchange part is shortened; and through the flow path design of the bidirectional variable flow pipeline, the refrigerant quantity at different positions of the outdoor heat exchanger is in the optimal state in the heating mode and the defrosting mode, the overall heat exchange efficiency is improved, the overall defrosting time is shortened, and the technical problem that the flow path design of the heating mode and the defrosting mode of an existing air conditioner outdoor unit cannot be optimal at the same time is solved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner outdoor unit. Background technique [0002] During the operation of the top outlet outdoor unit, the air volume at different positions of the heat exchanger is different, especially in the vertical direction, as the height decreases, the air volume gradually decreases, such as figure 1 shown. [0003] In order to achieve the best capacity of the heat exchanger, it is necessary to increase the refrigerant flow at the position with high air volume and decrease the refrigerant flow at the position with low air volume. To adjust the flow of refrigerant in the industry, a splitter head is usually used to connect multiple capillaries. The flow path with a large amount of refrigerant matches the capillary with a short length or a large diameter, and the flow path with a small amount of refrigerant matches a long capillary or a small diameter. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/16F24F1/32F24F11/42F24F11/65F24F11/84
CPCF24F1/32F24F1/16F24F11/65F24F11/42F24F11/84Y02B30/70
Inventor 路海滨张恒夏兴祥
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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