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Air-conditioning apparatus

An air conditioner and air-conditioning technology, applied in space heating and ventilation, compression machines with reversible cycles, space heating and ventilation control input, etc., can solve the problem of distributing refrigerant, reducing user comfort, and cooling and heating In order to achieve the effect of improving comfort and reducing power consumption

Active Publication Date: 2015-06-17
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology described in Patent Document 1 does not take into account the distribution of refrigerant to each air conditioner according to the number of people in the room, so the compressor may not operate efficiently depending on the number of people in the room.
[0009] In addition, the technology described in Patent Document 1 does not distribute refrigerant according to the number of people in the room, so even in rooms with the same set temperature, the cooling and heating effects are different, which may reduce the comfort of users
[0010] That is, in the technology described in Patent Document 1, it is impossible to efficiently reduce power consumption while improving user comfort.

Method used

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  • Air-conditioning apparatus
  • Air-conditioning apparatus
  • Air-conditioning apparatus

Examples

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Effect test

Embodiment approach 1

[0024] figure 1 It is a figure explaining an example of the refrigerant circuit structure of the air conditioner 100 which concerns on Embodiment 1 of this invention. figure 2 is description figure 1 A diagram of the system configuration of the air conditioner 100 is shown.

[0025] The air conditioner 100 is an improved air conditioner that adjusts the distribution amount of refrigerant supplied to the indoor unit 30 according to the number of people in the air-conditioning target space.

[0026] The air conditioner 100 includes an outdoor unit 11 and a plurality of indoor units 30 , and these outdoor units 11 and indoor units 30 are connected by refrigerant piping to form the air conditioner 100 .

[0027] Outdoor unit 11 such as figure 1 As shown, it includes: a compressor 1, which compresses and delivers refrigerant; a four-way valve 2, which switches the flow path; an outdoor heat exchanger 3, which functions as a condenser during cooling operation. The outdoor heat ...

Embodiment approach 2

[0147] Image 6 It is a flowchart explaining an example of the refrigerant distribution control of the air conditioner 100 of the second embodiment. Figure 7 It is a flowchart explaining an example of the set temperature change control of the air conditioner 100 of this Embodiment 2. Figure 8 It is a flowchart explaining an example of operation stop and operation start control of the air conditioner 100 of this Embodiment 2. In Embodiment 2, the same reference numerals are assigned to the same parts as in Embodiment 1, and the differences from Embodiment 1 will be mainly described.

[0148] The human body detection sensor 8 of the second embodiment has a function of detecting radiant heat from the floor, walls, etc. of the room in addition to the function of detecting whether there is a person in the room. Then, the control unit controls the opening degree of the main electronic expansion valve 4 and the opening degree of the electronic expansion valve 5 for each room base...

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Abstract

Human detection devices 8 that detect the number of people in conditioned spaces supplied with conditioned air from the use side heat exchangers 12 and control means 9 and 50 that controls an amount of refrigerant supplied to the use side heat exchangers 12 by controlling opening degrees of the expansion devices 5 on the basis of detection results of the human detection devices 8.

Description

technical field [0001] The present invention relates to an air conditioner, in particular to an air conditioner for air-conditioning a plurality of cooling object spaces respectively. Background technique [0002] As a method of reducing the power consumption when the air conditioner is in use, it is conceivable to use a method of stopping the operation by the user operating a remote control or the like when the user exits the room, or changing the set temperature in order to reduce the load of the air conditioner. In addition, an air conditioner provided with a human detection sensor for detecting the presence or absence of a person in a room has been proposed (for example, refer to Patent Document 1). [0003] The technology described in Patent Document 1 has a plurality of air conditioners, and when a human body detection sensor detects no one in the room, the set temperature is automatically changed to reduce the air conditioning load of the air conditioner corresponding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02
CPCF25B13/00F25B2313/0233F25B2313/02741F25B2600/2513F24F2120/10F24F11/84F24F11/83F24F11/46F24F11/62F24F2120/00F24F2120/12F24F11/30
Inventor 乾邦弘
Owner MITSUBISHI ELECTRIC CORP