Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Defrost control method for fixed frequency air conditioner

A control method and air-conditioning technology, applied in heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve the problems of inability to obtain the temperature of the external coil, single defrosting process, and low efficiency

Active Publication Date: 2021-07-02
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For fixed-frequency air conditioners, the power supply frequency cannot be changed. Even if the indoor temperature reaches the set temperature, the air conditioner will not automatically adjust the cooling or heating speed.
Since the temperature of the outer coil of the fixed-frequency air conditioner does not have a temperature sensor, the temperature of the outer coil cannot be obtained, so the defrosting timing of the fixed-frequency air conditioner cannot be judged by parameters such as the temperature of the outer coil
Moreover, the existing defrosting process lacks auxiliary means to speed up the defrosting efficiency, resulting in a single defrosting process and low efficiency

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
  • Defrost control method for fixed frequency air conditioner
  • Defrost control method for fixed frequency air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] In order to make the embodiments, technical solutions and advantages of the present invention more obvious, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0019] First refer to figure 1 , figure 1 It is the main flowchart of the defrosting control method of the present invention. Such as figure 1 As shown, the defrosting control method for the fixed frequency air conditioner of the present invention includes: S110, when the fixed frequency air conditioner is in the heating condition, detect the indoor temperature every preset time; S120, acc...

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 belongs to the technical field of air conditioners, and in particular relates to a defrosting control method for a fixed-frequency air conditioner. In order to improve the defrosting efficiency of the fixed-frequency air conditioner, the defrosting control method for the fixed-frequency air conditioner proposed by the present invention includes the following steps: when the fixed-frequency air conditioner is in the heating condition, the indoor temperature is detected every preset time ; Judging whether to make the fixed-frequency air conditioner enter the defrosting mode according to the decay speed of the indoor temperature. This application innovatively uses the indoor temperature change trend to represent the degree of frosting of the outdoor unit, and thus judges the timing when the air conditioner enters the defrosting mode, avoids frequent defrosting of the fixed-frequency air conditioner, ensures the defrosting effect, and improves user experience.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a defrosting control method for a fixed-frequency air conditioner. Background technique [0002] As a device that can adjust the indoor ambient temperature, the air conditioner works on the principle that the indoor ambient temperature is reduced or increased by the refrigerant passing through the circulation pipeline through high-pressure / low-pressure / gas / liquid state transitions, that is, from From the perspective of the indoor unit, the air conditioner is in cooling or heating mode. When the air conditioner is in heating operation, if the temperature of the outdoor coil is too low under certain humidity conditions, it will cause frosting, and the frosting of the outdoor coil will reduce the heat exchange efficiency of the outdoor heat exchanger and affect the cooling performance of the air conditioner. The thermal effect reduces the comfort of the indoor ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/61F24F11/65F25B47/02F24F140/20
CPCF25B47/025F25B2347/02F24F11/42F24F11/61F24F11/64F24F11/65F24F2140/20
Inventor 许文明罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com