Control method for outdoor direct current fan of variable frequency air conditioner
A DC fan and inverter air conditioner technology, which is applied in heating and ventilation control systems, space heating and ventilation, heating methods, etc., can solve the problem that the outdoor DC fan speed system of the inverter air conditioner cannot be optimally matched, and affects system capability and reliability, etc. problem, to achieve the effect of reducing system recovery time, shortening the time interval between restarts, and improving heat exchange capacity
Active Publication Date: 2017-09-15
SICHUAN CHANGHONG ELECTRIC CO LTD
View PDF7 Cites 27 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is to propose a control method for the outdoor DC fan of the inverter air conditioner, which solves the problem in the traditional technology that the speed of the outdoor DC fan of the inverter air conditioner cannot be optimally matched with the system, which affects the system capability and reliability
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0048] Taking an inverter air conditioner as an example, the minimum speed of the DC fan is 500rpm, and the maximum speed is 1300rpm.
[0049] Taking refrigeration as an example, when the machine is turned on, the outdoor ambient temperature is figure 1 The fan speed is obtained, and the speed plus the initial speed adjustment is used as the new initial speed of the fan.
[0050] When adjusting the speed of the fan each time, if the speed of the fan is increased, it is necessary to judge whether the maximum speed of the DC fan is exceeded after the speed is increased. If it exceeds the maximum speed, it will run at the highest speed; Whether the speed of the DC fan is lower than the minimum speed of the DC fan, and when it is lower than the minimum speed of the DC fan, it will run at the minimum speed of the DC fan.
[0051] After the compressor stops, the coil temperature and IPM temperature in the detection room are at this time. If the outdoor coil temperature is greater th...
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
Login to view more Abstract
The invention relates to control technologies of variable frequency air conditioners, discloses a control method for an outdoor direct current fan of the variable frequency air conditioner, and solves the problem that in traditional technologies, the revolving speed of the outdoor direct current fan of the variable frequency air conditioner cannot be matched with a system optimally, and as a result, the capacity and the reliability of the system are influenced. The method comprises the steps that the original revolving speed of the direct current fan is determined according to the frequency of a compressor and the outdoor environment temperature; in the running process of the compressor, the revolving speed of the direct current fan is adjusted in real time according to current system parameters, such as the outdoor coil temperature, the IPM temperature, the exhaust temperature and the environment temperature, and the stepless speed regulation function of the fan revolving speed is achieved; and after the compressor is stopped, the outdoor coil temperature and the IPM temperature are detected, whether the fan runs or not, the running speed of the fan and the running time of the fan are determined according to the temperatures. According to the control method, compared with an original control scheme in which the fan is stopped when the compressor is stopped, the temperature of the corresponding system can be reduced rapidly, the method is beneficial to shortening the time of system recovery due to the fact that the overheated system results in shut down of the compressor, and the time interval of once again start of the compressor is shortened.
Description
technical field [0001] The invention relates to the control technology of the frequency conversion air conditioner, in particular to a control method of the outdoor DC fan of the frequency conversion air conditioner. Background technique [0002] Good heat exchange is the prerequisite for the normal and stable operation of the air conditioning system. The outdoor DC fan of the inverter air conditioner is used for heat exchange of the outdoor evaporator. The heat transfer effect is related to the speed of the DC fan. additional power consumption. Therefore, the DC fan has a great impact on the system. If the working speed of the DC fan can best match the system, it will be of great benefit to improve the energy efficiency of the system. [0003] The outdoor DC fan of the inverter air conditioner has multiple wind speed gears. The existing control scheme is that different compressor operating frequency ranges correspond to different wind speed gears. Generally, when 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
Login to view more Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCY02B30/70
Inventor 赵静刘海涛王波杨正张凯王璠
Owner SICHUAN CHANGHONG ELECTRIC CO 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
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