Air-conditioner defrosting control method and control device and air-conditioner

A control method and technology for an air conditioner, which are applied in the field of air conditioner defrost control, air conditioner defrost control device, and air conditioners, can solve problems such as the reduction of indoor air supply temperature, save energy, eliminate the risk of liquid shock, and defrost The effect of high control precision

Active Publication Date: 2017-09-15
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
View PDF5 Cites 63 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a defrosting control method of an air conditioner, which is used to solve the problem in the prior art that the air condi

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 defrosting control method and control device and air-conditioner
  • Air-conditioner defrosting control method and control device and air-conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] When the outdoor temperature is lower than 10° C., people usually start the air conditioner indoors and make the air conditioner work in a heating mode to increase the indoor temperature. When the air conditioner works in heating mode, the surface temperature of the outdoor heat exchanger is lower than the outdoor dew point temperature, and...

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 invention provides an air-conditioner defrosting control method. The air-conditioner defrosting control method comprises the following steps that when the outdoor environmental temperature is higher than 0 DEG C and lower than 5 DEG C, an air-conditioner works in a heating mode, and whether defrosting conditions are met or not is judged; if the defrosting conditions are met, the air-conditioner enters a defrosting mode, the defrosting mode is that a frequency of a compressor is controlled to be a defrosting frequency, and meanwhile, an aperture of an electronic expansion valve is controlled to be a defrosting aperture to enable the surface temperature of an outdoor heat exchanger to be kept at 0 DEG C; and the defrosting frequency is lower than the real-time operational frequency of the compressor in the heating mode, the defrosting aperture is larger than the real-time aperture of the electronic expansion valve in the heating mode, and the air-conditioner keeps operating the defrosting mode till the situation that an exit condition is met is judged. Meanwhile, an air-conditioner defrosting control device and an air-conditioner are further disclosed. According to the air-conditioner defrosting control method, switching between the heating mode and a refrigeration mode is not needed in the defrosting process, defrosting is conducted by using air heat, and the air-conditioner defrosting control method has the advantages that energy consumption is low, and user experience is good.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioner defrosting control method, an air conditioner defrosting control device and an air conditioner. Background technique [0002] When the moisture contained in the air contacts the heat transfer surface whose temperature is lower than the triple point of water, it will adhere to the heat transfer surface and form frost. The frost layer is formed by the mixture of ice and air. According to the research of the prior art, under the frosting condition, the frost layer on the surface of the heat exchanger will increase the heat transfer resistance and flow resistance. When using the air conditioner in winter and working in the heating condition, because the outside temperature is very low, if the air humidity reaches a certain level, the heat exchange surface of the air conditioner's outdoor heat exchanger is easy to frost, which further seriously affects the ...

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): F24F11/00F25B49/02F25B47/02F25B13/00
CPCF25B13/00F25B47/02F25B49/022F25B2313/02741F25B2600/02
Inventor 韩涛任德亮吕福俊
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP 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