Air conditioner, and method of controlling air conditioner

A technology for air conditioners and indoor units, which is applied to the control of multi-model air conditioners and the field of multi-model air conditioners, can solve the problems of compressor temperature rise, insufficient heating capacity, pressure difference, etc.

Inactive Publication Date: 2005-07-20
DAIKIN IND LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the floor of a stop room is lower than other stop rooms, the pressure difference caused by the height difference will make the stop room on the lower floor prone to fluid accumulation.
Once this kind of liquid accumulation occurs, the heating capacity will be insufficient or the efficiency will be reduced due to the reduction of the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air conditioner, and method of controlling air conditioner
  • Air conditioner, and method of controlling air conditioner
  • Air conditioner, and method of controlling air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The composition of the air conditioner

[0019] figure 1 An air conditioner 1 according to an embodiment of the present invention is shown.

[0020] The air conditioner 1 is a so-called multi-type air conditioner in which one outdoor unit is connected to several indoor units.

[0021] One outdoor unit 2 of the air conditioner 1 is connected to four indoor units 3a, 3b, 3c, and 3d through refrigerant pipes 4a, 4b, 4c, and 4d. The four indoor units 3a, 3b, 3c, and 3d are respectively installed in each room. Here, only the indoor unit 3a is in the heating operation, and the other three indoor units 3b, 3c, and 3d are in the state of stopping the operation.

[0022] figure 2 The outline of the refrigerant circuit 5 of the present air conditioner 1 is shown.

[0023] The refrigerant circuit 5 is composed of one outdoor unit 2 and four indoor units 3 a , 3 b , 3 c , and 3 d connected in parallel to the outdoor unit 2 .

[0024] The outdoor unit 2 includes a compressor ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides an air-conditioner and an air-conditioner control method. The air conditioner includes an outdoor unit (2) having an outdoor heat exchanger, a plurality of indoor units (3a to 3d) each having an indoor heat exchanger, a refrigerant circuit, which links the outdoor heat exchanger, a compressor (20), and the indoor heat exchangers together, electric motor operated valves (33a to 33d), which are provided in the refrigerant circuit and serve to adjust the amount of refrigerant flowing into each of the indoor heat exchangers, respectively. a discharge pipe thermistor (24)serving to detect the temperature of the discharge pipe of the compressor, and an outdoor controller (27). In the case where there are a plurality of indoor units that are not operating during heating operation, the outdoor controller controls, on the basis of the delivery temperature, the degrees of opening of the motor-operated valves corresponding to the indoor units that are not operating. Further, the outdoor controller individually corrects the degrees of opening of the motor-operated valves corresponding to the indoor units that are not operating. According to the present invention , the air conditioner is capable of stabilized refrigerant control even when a multiple type air conditioner is performing heating operation or even when there are a plurality of indoor units that are not operating.

Description

technical field [0001] The invention relates to an air conditioner, in particular to a multi-model air conditioner in which one outdoor unit is connected to several indoor units, and a control method for the multi-model air conditioner. Background technique [0002] Among air conditioners composed of an outdoor unit and an indoor unit, there is a so-called multi-type air conditioner in which one outdoor unit is connected to several indoor units. [0003] In a multi-model air conditioner, a refrigerant circuit is formed between an outdoor unit having a compressor and an outdoor heat exchanger and a plurality of indoor units each having an indoor heat exchanger, and each indoor heat exchanger in the refrigerant circuit There are electric valves to adjust the amount of refrigerant flowing into each indoor heat exchanger. During heating operation, the high-temperature refrigerant from the compressor is distributed to each indoor heat exchanger, and each indoor heat exchanger pe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F24F11/02F24F3/06F24F11/00
CPCF25B13/00F24F3/065F24F11/008F25B2313/02323F25B2313/02741F25B2341/0652F25B2500/24F25B2600/2513F25B2700/21152Y02B30/72F24F11/83Y02B30/70F25B41/347F24F11/84
Inventor 片冈秀彦森田隆
Owner DAIKIN IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap