A fuzzy control method for a fan of an air conditioner outdoor unit
CN117231539BActive Publication Date: 2026-10-16NANJING TICA AIR CONDITIONING CO LTD
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Patent Information
- Application Number
- CN202211048039.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-30
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2042-08-30
AI Technical Summary
Technical Problem
[0003]但在低温制冷工况中，风扇处于21℃以下环温，当机组开机后，外机风扇开启工作，高压、低压降低，达到机组低压限频条件机组降频运行，高压、低压进一步降低，此时风扇根据高压值停止运行，待高压、低压上升到一定值后，风扇根据高压值进行开机运行；高压、低压降低再降频，风扇再关闭，高低压再进一步降低，风扇再开启，如此，机组循环往复波动运行，处于不稳定运行状态，长此以往会导致风扇电机损坏
Benefits of technology
[0042] The fuzzy control method for the outdoor unit fan of the air conditioner of the present invention uses high pressure to control the fan speed in normal cooling conditions, low pressure to control the fan speed in normal heating conditions, and simultaneously considers both high and low pressure to perform fuzzy control of the fan speed in low-temperature cooling conditions. This can better solve the problem of frequent fan start-stop when the unit is cooling in low-temperature environments and broaden the stable operating range of the unit.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a kind of air conditioner outdoor unit fan fuzzy control method, belong to air conditioning technical field, method includes: obtaining the real-time high pressure, low pressure, ambient temperature data of unit, operating mode and the corresponding relationship data of ambient temperature and target high pressure and / or target low pressure under various operating conditions;According to operating mode and initial ambient temperature, determine the unit operating condition type;According to the corresponding relationship between the initial gear of fan and ambient temperature under corresponding condition type, determine the initial gear of fan;During the operation of fan, according to real-time ambient temperature and operating condition, determine target high pressure and / or target low pressure, compare real-time high pressure with target high pressure, and / or compare real-time low pressure with target low pressure, and according to the comparison result, according to the preset fan gear control rule under corresponding condition type, control fan gear to maintain or change.The present application can realize the accurate control of air conditioner outdoor unit fan, improve the stability of air conditioner unit operation.
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