Control method for rotating speed of outdoor fan of air conditioner, air conditioner and storage medium

A speed control and external fan technology, which is applied in the field of air conditioners and storage media, and the speed control of air conditioner outdoor fans, which can solve the problems of small refrigerant flow, low cooling capacity, and small system pressure difference

Active Publication Date: 2020-11-06
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for controlling the speed of the outdoor fan of an air conditioner, an air conditioner and a storage medium, aiming at solving the

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  • Control method for rotating speed of outdoor fan of air conditioner, air conditioner and storage medium
  • Control method for rotating speed of outdoor fan of air conditioner, air conditioner and storage medium
  • Control method for rotating speed of outdoor fan of air conditioner, air conditioner and storage medium

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The method for controlling the speed of an air-conditioning outdoor fan described in a preferred embodiment of the present invention is as follows: figure 1 with figure 2 As shown, the air-conditioning outdoor fan speed control method includes the following steps:

[0038] Step S10 , when the operation of the air conditioner satisfies the differential pressure condition and the current operating frequency reaches the preset threshold, record the temperature of the first inner pipe at the current moment, and reduce the speed of the external fan of the air conditioner by a preset ...

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Abstract

The invention discloses a control method for the rotating speed of an outdoor fan of an air conditioner, the air conditioner and a storage medium. The method comprises the steps that the pipe temperature of a first inner pipe at the current moment is recorded when the operation of the air conditioner meets a differential pressure condition and the current operation frequency reaches a preset threshold value, and the rotating speed of the outdoor fan of the air conditioner is reduced by one preset value; the pipe temperature of a second inner pipe is recorded after the rotating speed of the outdoor fan of the air conditioner is reduced, and when the difference value between the pipe temperature of the first inner pipe and the pipe temperature of the second inner pipe is larger than or equalto a first preset temperature value, the operating frequency reduced by one preset value is kept unchanged. According to the control method for the rotating speed of the outdoor fan of the air conditioner, the air conditioner and the storage medium, the condensing pressure is increased by reducing the rotating speed of the outdoor fan of the air conditioner, and the pressure difference is increased, so that the refrigerant flow is increased; and the optimal rotating speed value is determined by reducing the pipe temperature of the inner pipes before and after the rotating speed of the outer fan is reduced, and therefore the refrigerating capacity is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for controlling the speed of an outdoor fan of an air conditioner, an air conditioner and a storage medium. Background technique [0002] DC inverter air conditioner refers to the air conditioner that adopts DC inverter control system and corresponding DC inverter compressor, which has the strongest energy-saving effect and more accurate temperature control technology. [0003] At present, the speed of most outdoor fans of DC inverter air conditioners is controlled according to the difference between the temperature of the outer coil and the ambient temperature to ensure energy-saving operation of the air conditioner. For example, when 4°C<outer coil temperature-ambient temperature<8°C , the speed of the external fan remains unchanged; when the temperature of the outer coil - ambient temperature < 4 °C, the speed of the external fan is reduced by 1 gear...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/871F24F11/54F24F11/52F24F140/20
CPCF24F11/64F24F11/871F24F11/54F24F11/52F24F2140/20
Inventor 曾华林陈开东张亮杨昌咏
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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