A method and device for controlling an external fan, and an air conditioner

A control method and technology for outdoor fans, which are applied in heating and ventilation control systems, heating methods, mechanical equipment, etc., can solve problems such as energy waste and inaccurate control of outdoor fan speed, so as to avoid energy waste, avoid high speed, Precisely tuned effects

Active Publication Date: 2022-04-19
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is that in the prior art, during the low-load operation of the air conditioner, the speed control of the external fan is not accurate enough, resulting in excessive energy waste

Method used

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  • A method and device for controlling an external fan, and an air conditioner
  • A method and device for controlling an external fan, and an air conditioner
  • A method and device for controlling an external fan, and an air conditioner

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Embodiment Construction

[0061] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0062] see figure 1 , figure 1 Shown is a flow chart of the method for controlling the external fan provided in this embodiment. The method for controlling the external fan is applied to an air conditioner. During the operation of the air conditioner at a low load, the method for controlling the external fan can precisely adjust the speed of the external fan on the premise of meeting the exhaust pressure requirement, thereby avoiding energy waste. The external fan control method provided in this embodiment includes the following steps:

[0063] Step S101, acquiring the exhaust pressure of the air conditioner in real time.

[0064] In this embodiment, by installing a pressure sensor at the air outlet of the compressor of the air conditio...

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Abstract

The invention provides an outdoor fan control method, device and air conditioner, and relates to the technical field of air conditioners. The control method of the outdoor fan includes: obtaining the exhaust pressure of the air conditioner in real time; when the exhaust pressure falls within the first preset pressure range, calculating the first theoretical adjustment amount according to the exhaust pressure; and calculating the first theoretical adjustment amount according to the first theoretical adjustment amount Adjust the speed of the external fan of the air conditioner; when the exhaust pressure falls within the second preset pressure range, obtain the heat transfer temperature difference of the outdoor heat exchanger, wherein the upper limit of the second preset pressure range It is equal to the lower limit of the first preset pressure range; the second theoretical adjustment amount is calculated according to the heat exchange temperature difference; and the rotation speed of the external fan is adjusted according to the second theoretical adjustment amount. The control method of the external fan provided by the present invention can accurately adjust the rotating speed of the external fan on the premise of satisfying the exhaust pressure requirement, thereby avoiding energy waste.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular, to a method and device for controlling an external fan, and an air conditioner. Background technique [0002] In actual application, the air conditioner operates at full load in the early stage, quickly reducing the room temperature, and operates at low load most of the time in the later stage. [0003] The air conditioners on the market still adjust the speed of the external fan according to the outdoor ambient temperature through preset parameters during low-load operation. Although this kind of adjustment method can effectively prevent the exhaust pressure from being too high, it will also cause the speed adjustment of the external fan to be inaccurate, resulting in excessive energy waste. Contents of the invention [0004] The problem solved by the invention is that in the prior art, during the low-load operation of the air conditioner, the speed control of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/871F24F11/88F24F110/40F24F140/20
CPCF24F11/30F24F11/64F24F11/871F24F11/88F24F2110/40F24F2140/20
Inventor 宋磊邓赛峰张稳刘合心
Owner NINGBO AUX ELECTRIC
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