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

Air-conditioner and control method and device for compressor in air-conditioner

A control method and a technology of a control device, which are applied in space heating and ventilation, heating and ventilation control systems, heating methods, etc., can solve problems such as vibration of compressors and compressor piping, broken pipes, and excessive stress of compressor piping. To achieve the effect of improving service life, preventing excessive stress and preventing vibration

Inactive Publication Date: 2016-01-20
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
View PDF10 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the load of the system is relatively large or the operating frequency of the compressor is relatively high, if the compressor is suddenly controlled to stop running, it will be due to the sudden change of the system pressure, flow rate and flow, and the rotary inertia of the compressor motor and rotor. The compressor and the compressor piping shake violently
Especially for a single-rotor compressor with a large displacement, the larger the displacement, the greater the moment of inertia, the greater the impact of the fluid, and the more severe the vibration of the compressor and the compressor piping. It is easy to cause the stress of the compressor piping to exceed the standard, which will affect the service life of the compressor piping, and even crack or break the pipe.

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 control method and device for compressor in air-conditioner
  • Air-conditioner and control method and device for compressor in air-conditioner
  • Air-conditioner and control method and device for compressor in air-conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] A method for controlling a compressor in an air conditioner, a device for controlling a compressor in an air conditioner, and an air conditioner according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0025] figure 1 is a flowchart of a method for controlling a compressor in an air conditioner according to an embodiment of the present invention. Such as figure 1 As shown, the control method of the compressor in the air conditioner includes the following ste...

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 discloses a control method and device for a compressor in an air-conditioner and the air-conditioner. The method includes the following steps that in the running process of the compressor, if a running stop command is received, the running current and the running frequency of the compressor are obtained; if the running frequency of the compressor is larger than a preset frequency threshold value, the running frequency of the compressor is decreased according to a preset frequency decreasing rate, and the running current and / or the running frequency of the compressor are / is further judged in the frequency decreasing process of the compressor; and if it is judged that the running current of the compressor is smaller than or equal to a preset current threshold value and the state lasts a preset time, and / or the running frequency of the compressor is smaller than or equal to a preset frequency threshold value and the state lasts a preset time, the compressor is controlled to halt. By means of the method, the stress of compressor piping can be reduced effectively to a certain degree when the compressor halts, and therefore the service life of the compressor piping is prolonged.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for controlling a compressor in an air conditioner, a control device for a compressor in an air conditioner, and an air conditioner. Background technique [0002] Usually, the compressor in the inverter air conditioner will stop running directly when it receives a shutdown command. However, when the load of the system is relatively large or the operating frequency of the compressor is relatively high, if the compressor is suddenly controlled to stop running, it will be due to the sudden change of the system pressure, flow rate and flow, and the rotary inertia of the compressor motor and rotor. The compressor and the compressor piping shake violently. Especially for a single-rotor compressor with a large displacement, the larger the displacement, the greater the moment of inertia, the greater the impact of the fluid, and the more severe the vibration of the comp...

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 Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64F24F11/70
Inventor 徐振坤李金波于光
Owner GD MIDEA AIR-CONDITIONING EQUIP CO 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