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

Multi-split air conditioner and control method thereof

A technology of multi-connected air conditioners and compressors, applied in the control input of air characteristics, space heating and ventilation control input, heating and ventilation control system, etc. Affect system reliability and other issues to achieve the effect of maintaining a stable superheat degree

Inactive Publication Date: 2015-07-29
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
View PDF4 Cites 43 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that when the displacement of the compressor of the multi-connected air conditioner is large and the air conditioner system operates with a small load, the outdoor unit needs to be started and stopped frequently, which affects the comfort of the user and the reliability of the system

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
  • Multi-split air conditioner and control method thereof
  • Multi-split air conditioner and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner ", "outside", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construe...

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 a multi-split air conditioner, and discloses a multi-split air conditioner and a control method thereof. A compressor is respectively communicated with an inlet of an outdoor heat exchanger and an outlet of a gas-liquid separator; an indoor evaporation unit is arranged between an outlet of the outdoor heat exchanger and an inlet of the gas-liquid separator; the outlet of the outdoor heat exchanger and the inlet of the gas-liquid separator are communicated through a second throttling component; the indoor evaporation unit comprises a plurality of groups of indoor evaporators in parallel connection, and an inlet temperature sensing bag and an outlet temperature sensing bag are respectively arranged on a branch at which each indoor evaporator is located. The coolant temperature at the outlet and the inlet of the indoor evaporator is detected, and the overheat degree is obtained through calculation and is compared with a set value, so the opening degree of the second throttling component is regulated according to the result, and the goal of regulating the total quantity of the coolant entering the indoor evaporation unit is achieved, and the frequent starting and stopping of an outdoor unit is avoided, the use comfort degree of a user is improved, and the stability of an air conditioner system is ensured.

Description

technical field [0001] The invention relates to the technical field of multi-connected air conditioners, in particular to a multi-connected air conditioner operating with a small load and a control method thereof. Background technique [0002] With the development of multi-connection technology, in order to improve the comfort of users, the length of multi-connection piping is getting longer and longer, the number of indoor units is increasing, and the number of outdoor units is required to be larger and larger. The compressor that matches the outdoor unit The displacement is also getting bigger and bigger. For multi-connected systems, variable frequency compressors are generally used, but the variable frequency compressors have a minimum operating frequency. For the volume compressor, the capacity output is still too high, which will cause the low pressure to be too low, and the evaporation temperature to be lower than 0 degrees; When the temperature rises, stop the extern...

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): F25B5/02F25B41/06F25B49/02F24F11/00F25B41/31
CPCF24F11/30F24F2110/00F25B5/02F25B49/02F24F2140/20F25B41/34F25B41/31Y02B30/70
Inventor 卜其辉许永锋梁伯启张光鹏李宏伟蒋运鹏吴晓鸿
Owner GD MIDEA HEATING & VENTILATING 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