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Outdoor unit of air conditioner and air conditioner

a technology for outdoor units and air conditioners, applied in space heating and ventilation control systems, lighting and heating apparatuses, heating types, etc., can solve problems such as the reduction of heating capacity

Inactive Publication Date: 2016-08-04
FUJITSU GENERAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes an outdoor unit of an air conditioner that has a feature to adjust the flow rate of refrigerant based on the temperature of the air. This allows the unit to efficiently cool the air conditioner in case of high ambient temperatures. The technical effect of this feature is to improve the performance and efficiency of the air conditioner in different types of environments, especially in situations where the temperature is very hot.

Problems solved by technology

This may cause reduction in heating capacity due to degradation in evaporating performance of the outdoor heat exchanger.

Method used

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  • Outdoor unit of air conditioner and air conditioner
  • Outdoor unit of air conditioner and air conditioner
  • Outdoor unit of air conditioner and air conditioner

Examples

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example

[0018]As illustrated in FIG. 1A, an air conditioner 1 in this embodiment includes one outdoor unit 2 and three indoor units 5a to 5c. The indoor units 5a to 5c are coupled in parallel to the outdoor unit 2 via pipes including a first liquid pipe 8a, a second liquid pipe 8b, a third liquid pipe 8c, and a gas pipe 9. That is, the air conditioner 1 includes the outdoor unit 2, the indoor units 5a to 5c, and the pipes coupling the outdoor unit 2 to the indoor units 5a to 5c.

[0019]The foregoing components are coupled in a manner as described below. One end of the first liquid pipe 8a is coupled to a first liquid-side closing valve 27a of the outdoor unit 2. The other end of the first liquid pipe 8a is coupled to a liquid pipe coupling portion 53a of the indoor unit 5a. One end of the second liquid pipe 8b is coupled to a second liquid-side closing valve 27b of the outdoor unit 2. The other end of the second liquid pipe 8b is coupled to a liquid pipe coupling portion 53b of the indoor un...

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Abstract

An outdoor unit of an air conditioner includes: an outdoor heat exchanger provided with a plurality of refrigerant paths including a flow rate-variable refrigerant path; an ambient air temperature detector that detects an ambient air temperature; and a controller that decreases a flow rate of a refrigerant flowing into the flow rate-variable refrigerant path in a case where the ambient air temperature detected by the ambient air temperature detector is equal to or higher than a threshold ambient air temperature as compared to a case where the ambient air temperature is lower than the threshold ambient air temperature, when the outdoor heat exchanger serves as an evaporator.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority from Japanese Patent Application No. 2015-015121 filed with the Japan Patent Office on Jan. 29, 2015, the entire content of which is hereby incorporated by reference.BACKGROUND[0002]1. Technical Field[0003]Embodiments of the present disclosure relate to an outdoor unit of an air conditioner including a heat exchanger with a plurality of refrigerant paths, and an air conditioner.[0004]2. Description of the Related Art[0005]For a known air conditioner, an outdoor unit includes an outdoor heat exchanger with a plurality of refrigerant paths vertically disposed in parallel, for example. When the air conditioner performs heating operation, the outdoor heat exchanger serves as an evaporator. Accordingly, a refrigerant brought into a gas-liquid two-phase state or a liquid state in an indoor unit flows into the outdoor heat exchanger. At that time, the liquid refrigerant flows biased toward the lower refrigerant pa...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B49/02F24F1/26
CPCF25B49/02F24F1/26F24F11/89F24F11/30F24F2110/10F24F1/16F24F2110/12F25B41/35F24F11/84F24F1/14F25B13/00F25B2313/0233F25B2313/0253F25B2600/2515F24F11/83Y02B30/70
Inventor MAEDA, NORITAKA
Owner FUJITSU GENERAL LTD
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