Draught fan downwind starting control method and device and air conditioning unit
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A technology for air-conditioning units and fans, applied in mechanical equipment and other directions, can solve the problems of high operating energy consumption and large starting resistance of fans, and achieve the effects of low operating energy consumption, small starting resistance, and small starting current.
Inactive Publication Date: 2019-01-29
GREE ELECTRIC APPLIANCES INC
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[0004] In order to solve the defects of large start-up resistance and high energy consumption of the existing fans, the present invention proposes a downwind start-up control method of fans with small start-up resistance and low energy consumption, and an air-conditioning unit using the method
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[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0027] The invention discloses a fan downwind start-up control method, which comprises the following steps: detecting wind direction, controlling the direction of the fan according to the wind direction, and enabling the fan to start running downwind, and the fan outlet direction is the same as the wind direction. In the development of the air conditioning unit system (or ventilated radiator), according to the heat exchange effect of the heat exchanger, a certain rotation direction of the fan is specified as the positive direction, and the other rotation direction is the reverse direction. ...
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Abstract
The invention discloses a draught fan downwind starting control method and device and an air conditioning unit. According to the draught fan downwind starting control method and device, the wind direction can be detected, a draught fan is controlled to steer according to the wind direction, the draught fan is enabled to run in a downwind mode, and the air outlet direction of the draught fan is thesame as the air direction. The draught fan downwind starting control method comprises step S1, detecting whether a draught fan start-up signal exists is conducted, if no start-up signals exist, stepS2 is executed, and if the start-up signal exists, the step S3 is executed; step S2, a draught fan driving signal is closed and cut, and the step S1 is executed circularly; step S3, the state of the draught fan is detected, and steering of the draught fan is judged; if the draught fan is downwind, the step S4 is executed, and if the draught fan is upwind, the step S5 is executed; step S4, the draught fan is started to run in a downwind mode, and meanwhile, the step S1 is executed; and step S5, reverse-rotation of the draught fan is conducted, and step S4 is executed. According to the method, starting resistance and starting currents of the draught fan are small, the operation energy consumption is low, especially the wind energy can be converted into electric energy under the condition that wind power is large, and the electric energy loss is greatly reduced.
Description
technical field [0001] The invention relates to a fan, in particular to a fan downwind start control method, which can be used in an air conditioning system, has low starting resistance and low operating energy consumption, a fan downwind start control device and an air conditioner unit using the method. Background technique [0002] At present, the air-conditioning unit system is the largest energy-consuming equipment in the user's home. The outdoor unit is installed outside the user's building. Due to the strong outdoor wind, it may be blown by the wind when the fan is not started; and the air-conditioning design has stipulated that the air outlet of the fan direction. Therefore, when the wind turbine is caused by the external wind force to be in the opposite direction from the prescribed direction, the wind turbine is started and operated in upwind. At this time, the fan drive needs to overcome the external wind power to do work, which leads to an increase in the power c...
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Application Information
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