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Control method of condensation fan of air conditioner unit

A technology for condensing fans and air-conditioning units, which is applied in the field of air-conditioning, can solve the problems of compressor oil shortage and burning, the reduction of the high-low pressure ratio of the refrigeration system, and the difficulty of returning oil to the compressor, so as to avoid frequent fluctuations, reduce power consumption, and reduce noise. Effect

Inactive Publication Date: 2018-11-06
SHANDONG LONGERTEK TECH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] 2. When the condensing fan is outdoors and the outdoor temperature is low, the external fan continues to operate at high frequency, resulting in a decrease in the high-low pressure ratio of the refrigeration system, making it difficult for the compressor to return oil. In severe cases, the compressor will burn out due to lack of oil

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  • Control method of condensation fan of air conditioner unit
  • Control method of condensation fan of air conditioner unit
  • Control method of condensation fan of air conditioner unit

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The present invention firstly provides an air conditioner unit, including a compressor 1, an evaporator 4, a condenser 2, and a condensing fan 21 connected by pipelines, and also includes a frequency converter that can adjust the speed of the condensing fan 21 according to the real-time temperature of the condenser Device 23.

[0029] Such as figure 1 As shown, an air conditioner unit provided by the present invention includes an outdoor unit and an indoor unit, the outdoor unit includes a condenser 2 and a condensing fan 21, the indoor unit includes an evaporator 4 and a ventilator 41 for the evaporator 4, the outdoor unit and the indoor unit They are connected to each other and to the compressor 1 through pipelines, and a throttling device 3 is also connected to the communication pipeline between the evaporator 4 and the con...

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Abstract

The invention provides a control method of a condensation fan of an air conditioner unit. The air conditioner unit comprises a compressor, an evaporator, a condenser and the condensation fan which areconnected through pipelines; a frequency converter is arranged on the condenser; a temperature sensor is arranged on the condenser; a master controller in signal connection with the condenser and thetemperature sensor receives a real-time temperature value of the temperature sensor, and thus selects a corresponding running frequency of the condensation fan; and the frequency converter adjusts and controls the running frequency of the condensation fan in real time. By means of the control method of the condensation fan of the air conditioner unit, continuous high-frequency running of the condensation fan can be avoided, the noise of the air conditioner unit is lowered, and the service life of the condensation fan is prolonged.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a method for controlling a condensing fan of an air conditioning unit. Background technique [0002] At present, the condensing fan of the track air conditioner generally adopts fixed frequency control, and the start and stop of the condensing fan is controlled by the contactor's pull-in and disconnection. That is, as long as the compressor starts, the condensing fan must run at the rated frequency. [0003] There are two problems with this common condensing fan control method: [0004] 1. The condensing fan continues to operate at high frequency, with high noise, reduced service life and high power consumption; [0005] 2. When the condensing fan is outdoors and the outdoor temperature is low, the external fan continues to operate at high frequency, resulting in a decrease in the high-low pressure ratio of the refrigeration system, making it difficult for the compressor to retu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/89F24F11/70F24F13/24F24F11/86
CPCF24F11/70F24F11/86F24F11/89F24F13/24F24F2013/247
Inventor 高福学李玉奎葛安民
Owner SHANDONG LONGERTEK TECH CO LTD
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