Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner

A technology of continuous operation and control method, which is applied in the direction of climate sustainability, heating and ventilation control system, heating method, etc., and can solve problems such as air conditioner outlet temperature fluctuations and noise changes

Active Publication Date: 2021-11-02
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 the problem that the outdoor fan of the existing air conditioner periodically starts and stops, resulting in significant fluctuations in the temperature of the air outlet from the air conditioner and significant changes in noise

Method used

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  • Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner
  • Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner
  • Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner

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Embodiment Construction

[0029] 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.

[0030] figure 1 It is a structural schematic diagram of the outdoor unit of the present invention. The outdoor unit heat exchanger HEx includes three heat exchange modules for illustration. The flow of each heat exchange module is respectively provided with electromagnetic valves GV1, GV2, and GV3. exist figure 1 It also shows the ambient temperature sensing package Tao of the external machine, the compressor Comp, the four-way valve 4way, the return pipe PipeL, the exhaust pipe PipeG and two fans Fan1 and Fan2.

[0031] The ambient temperature sensor of the external unit is used to detect the outdoor ambient temperature Tao, the exhaust temperature sensor is used to detect the temperature Td, the return air temperature sensor is used to ...

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Abstract

The invention provides an air conditioner low-temperature refrigeration continuous operation control method and device and an air conditioner. The method comprises the steps that under the low-temperature refrigeration condition, the current operation gear of a draught fan is obtained; if the current operation gear is smaller than a preset gear threshold value and lasts for a first duration, an electromagnetic valve of at least one heat exchange module is closed; and according to the high pressure, the operation gear of the draught fan is controlled, and whether the electromagnetic valves of the more heat exchange modules are closed or not is controlled. Under the low-temperature refrigeration condition, the electromagnetic valve and the gear of the outdoor fan can be controlled in a linkage mode, the purpose of continuous and stable operation of the outdoor fan is achieved, air outlet temperature fluctuation and the noise change degree are reduced, and the comfortable experience of a user is improved.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a method and device for controlling continuous operation of low-temperature refrigeration of an air conditioner and an air conditioner. Background technique [0002] At present, when the air conditioner is cooling at low ambient temperature, due to the small load demand, the heat exchanger of the outdoor unit is too large. When the frequency of the compressor and the wind speed of the outdoor fan are adjusted to the minimum, the load demand is still exceeded, and the outdoor fan can only be stopped to meet the demand. However, there is no heat exchange after the outdoor fan is stopped. As time goes by, the load demand cannot be met, and the outdoor fan must be turned on to meet the load demand, forming a periodic fan start and stop operation. [0003] The periodic start and stop of the fan causes the temperature of the air outlet of the air conditioner to fluctua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/30F24F11/61F24F11/64F24F11/77F24F11/84F24F11/871F24F11/88F24F110/12F24F140/12F24F140/40
CPCF24F11/30F24F11/61F24F11/64F24F11/77F24F11/84F24F11/871F24F11/88F24F2110/12F24F2140/12F24F2140/40Y02B30/70
Inventor 刘永超张稳刘合心陈体宁杜文超郭玮
Owner NINGBO AUX ELECTRIC
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