Air conditioner

Pending Publication Date: 2021-12-30
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent is about an air conditioner system that has two heat exchange portions in the condenser. By dividing the condenser into two parts and storing refrigerant in one of them, the minimum capability of air conditioning can be further lowered.

Problems solved by technology

On the other hand, for maintaining the room temperature at an appropriate temperature by on / off control of air conditioning, the room temperature inevitably fluctuates.
Therefore, such an air conditioner has been required to further decrease its lower limit capability during operation in addition to the rated capability for setting the room temperature at an appropriate temperature in an early stage.

Method used

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Embodiment Construction

[0021]The embodiments of the present invention will be hereinafter described in detail with reference to the accompanying drawings. As to a plurality of embodiments explained in the following description, it has been originally intended to combine the configurations described in respective embodiments as appropriate. In the accompanying drawings, the same or corresponding components will be denoted by the same reference characters, and the description thereof will not be repeated.

[0022]FIG. 1 is a configuration diagram of an air conditioner 1 according to the present embodiment. Referring to FIG. 1, air conditioner 1 includes a compressor 10, an indoor heat exchanger 20, an expansion valve 30, an outdoor heat exchanger 40, and a four-way valve 91. Outdoor heat exchanger 40 includes a first heat exchange portion 40A and a second heat exchange portion 40B. First heat exchange portion 40A and second heat exchange portion 40B are obtained, for example, by vertically dividing outdoor hea...

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Abstract

A condenser includes: a first heat exchange portion and a second heat exchange portion that are configured such that refrigerant in the first heat exchange portion flows in parallel with refrigerant in the second heat exchange portion; a flow rate restricting portion configured to cause a flow rate difference between a flow rate of the refrigerant passing through the first heat exchange portion and a flow rate of the refrigerant passing through the second heat exchange portion. An air conditioner includes a controller configured to control a compressor and a flow rate restricting portion. When the controller changes an air conditioning capability of the air conditioner, the controller uses a combination of a frequency of the compressor and the flow rate difference between the refrigerants passing through two heat exchange portions.

Description

TECHNICAL FIELD[0001]The present invention relates to an air conditioner.BACKGROUND ART[0002]In recent years, the widespread use of highly airtight and heat insulated houses have allowed significantly small air conditioning loads required to maintain comfortable rooms at comfortable temperatures. On the other hand, for maintaining the room temperature at an appropriate temperature by on / off control of air conditioning, the room temperature inevitably fluctuates. In order to reduce the fluctuation range of the room temperature, the air conditioner needs to be continuously operated with a relatively low air conditioning capability that balances with a small air conditioning load.[0003]Therefore, such an air conditioner has been required to further decrease its lower limit capability during operation in addition to the rated capability for setting the room temperature at an appropriate temperature in an early stage.CITATION LISTPatent Literature[0004]PTL 1: Japanese Patent No. 5639664S...

Claims

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Application Information

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IPC IPC(8): F25B6/02F25B49/02F25B41/20
CPCF25B6/02F25B41/20F25B49/02F25B2600/0253F25B2400/19F25B2313/0233F25B2313/0253F25B49/022F25B13/00F25B2700/2104
InventorTASHIRO, YUSUKESATO, MASANORIHAYAMARU, YASUHIDE
OwnerMITSUBISHI ELECTRIC CORP