Control method of outdoor fan during heating of variable-frequency multi-connection type air conditioning unit

A multi-connected air conditioner and outdoor fan technology, applied in space heating and ventilation, heating and ventilation control systems, household heating, etc., can solve the problems of normal heating, low pressure in the middle of the coil, and high pressure condensation temperature

Active Publication Date: 2013-07-24
NINGBO AUX ELECTRIC
View PDF6 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The operating frequency of the inverter compressor changes continuously with the outdoor ambient temperature, while the heat exchange area of ​​the outdoor heat exchanger remains unchanged, and the heat exchange with the external environment depends on the wind speed of the outdoor fan. The windshield does not match the operating frequency of the compressor of the air conditioner and the outdoor ambient temperature. If the windshield i

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
  • Control method of outdoor fan during heating of variable-frequency multi-connection type air conditioning unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, the control method of the outdoor fan when the frequency conversion multi-connected air conditioner unit is heating in the present invention, the specific steps are as follows.

[0023] a. Measure the outdoor ambient temperature through the second temperature sensor of the outdoor unit, and send the measurement result to the main controller of the air conditioner.

[0024] b. Determine whether the outdoor ambient temperature is ≤18°C. If yes, start the outdoor fan 1 at the high wind speed and continue to run for 30s, then go to step c; if not, start the outdoor fan 1 with the medium wind speed and continue to run for 30s , and then go directly to step d.

[0025] c. Every 30s, use the first temperature sensor 2 of each indoor unit that is turned on to measure the temperature in the middle of the coil of the i...

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 of an outdoor fan during heating of a variable-frequency multi-connection type air conditioning unit. The control method comprises the following specific steps of a, measuring outdoor environment temperature; b, judging whether the outdoor environment temperature is less than or equal to 18 DEG C or not, if so, starting an outdoor fan (1) in high wind level, continuously running for 30 seconds and entering into step c; and if not, starting the outdoor fan (1) in a medium wind level, continuously running for 30 seconds and then directly entering into step d; c, regulating the wind level in which the outdoor fan (1) runs for once every 30 seconds according to the average value of the condensation temperature; and d, regulating the wind level in which the outdoor fan (1) runs for once every 30 seconds according to the average value of the condensation temperature. According to the control method disclosed by the invention, the frequency of the outdoor fan can run reasonably.

Description

technical field [0001] The invention relates to a multi-connected air-conditioning unit, in particular to a method for controlling an outdoor fan when the frequency-variable multi-connected air-conditioning unit is heating. Background technique [0002] The multi-connected air conditioner unit in the prior art includes an outdoor unit, a plurality of indoor units connected in parallel, and two refrigerant circulation main pipes connecting each indoor unit and the outdoor unit. The outdoor unit communicates with multiple indoor units connected in parallel through two refrigerant circulation main pipes. [0003] Each outdoor unit includes a compressor, oil separator, four-way reversing valve, liquid reservoir, throttling device, outdoor heat exchanger (evaporator in heating mode) and gas-liquid separator. The outlet of the compressor communicates with one end of the oil separator, the other end of the oil separator communicates with the first valve port of the four-way revers...

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): F24F11/00F24F13/24
Inventor 郑坚江侯丽峰
Owner NINGBO AUX ELECTRIC
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