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Outdoor unit for air conditioner

A technology for outdoor units and air conditioners, applied to air conditioning systems, machine operation methods, compressors, etc., can solve problems such as engine speed rise, and achieve high operational reliability

Inactive Publication Date: 2017-09-19
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, at this time, there is also a method of disengaging the clutch that transmits the rotation of the engine to the non-power-driven compressor 12 without stopping the engine, and only stopping the non-power-driven compressor 12, but immediately after the clutch is disconnected, there is no rotation. The speed of the engine under load may rise abnormally

Method used

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  • Outdoor unit for air conditioner
  • Outdoor unit for air conditioner
  • Outdoor unit for air conditioner

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Experimental program
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Embodiment approach

[0081] The configuration of the refrigeration cycle of the air conditioner of this embodiment is shown in figure 1 . figure 1 The air conditioner has a so-called twin configuration in which two indoor units are connected to one outdoor unit. In addition, the configuration of the refrigeration cycle is not limited to figure 1 composition shown. For example, two or more outdoor units and three or more indoor units can also be connected in parallel.

[0082] Air conditioner 300 according to the present embodiment includes outdoor unit 100 , indoor unit 200 , indoor unit 210 , and control unit 400 .

[0083] The outdoor unit 100 includes: an engine 111 driven by gas; a first compressor 112 that compresses refrigerant by obtaining driving force from the engine 111; and a second compressor 113 that is electrically driven by commercial power or the like. The displacement of the first compressor 112 is larger than that of the second compressor 113 . In addition, the lubricating...

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Abstract

An outdoor unit for an air conditioner includes an engine; a first compressor that is driven by the engine; a second compressor that is connected in parallel to the first compressor and that is driven by electric power; an outdoor heat exchanger; and a controller. The controller causes the engine and the first compressor to be driven earlier than the second compressor in a defrosting operation in which the outdoor heat exchanger is defrosted.

Description

technical field [0001] The present disclosure relates to control at the time of defrosting of an outdoor unit of an air conditioner provided with a non-power-driven compressor driven by an engine and a power-driven compressor driven by electricity at the same time. Background technique [0002] When the gas heat pump is under partial load, the thermal efficiency of the engine decreases, and the operating efficiency as an air conditioner decreases. In order to avoid this situation, a so-called hybrid outdoor unit of a mains-driven compressor and a non-power-driven compressor is proposed, which is equipped with a power supply with a displacement volume smaller than that of a non-power-driven compressor driven by an engine. The compressor is driven, and the compressor is mainly driven by the power supply under partial load, and the engine is mainly operated under high load. [0003] image 3 It is a configuration diagram of Patent Document 1, and in the refrigeration cycle, a ...

Claims

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Application Information

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IPC IPC(8): F24F1/06F24F11/00
CPCF24F1/06F25B41/24F25B13/00F25B27/00F25B27/02F25B47/025F25B49/02F25B2313/0233F25B2313/0253F25B2313/02742F25B2327/001F25B2400/0751F25B2600/025F25B2600/0251F25B2600/23F25B2600/2513Y02A30/274
Inventor 松井大增田哲也水藤雄章
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD