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Refrigeration control method, device and air conditioner for air conditioner

A technology for refrigeration control and air conditioners, applied in evaporators/condensers, refrigerators, refrigeration components, etc., can solve problems such as poor refrigeration effect, reduce heat exchange area, avoid shutdown, and increase high pressure.

Active Publication Date: 2022-07-26
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the present invention is the poor cooling effect caused by the frequent start and stop of the external fan when the existing air conditioning unit is cooling at low temperature

Method used

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  • Refrigeration control method, device and air conditioner for air conditioner
  • Refrigeration control method, device and air conditioner for air conditioner
  • Refrigeration control method, device and air conditioner for air conditioner

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Embodiment Construction

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] This embodiment provides a novel adjustable condenser and an air conditioner equipped with the adjustable condenser. The adjustable condenser includes a plurality of condenser flow paths that can be controlled on and off, and each condenser flow path is independent of each other. In this embodiment, according to changes in ambient temperature, the on-off of the condenser flow path can be automatically controlled to adjust the heat exchange area of ​​the condenser, adjust the actual heat exchange amount of the outdoor unit (which is consistent with the required heat exchange amount), and avoid frequent opening of the outdoor fan. stop to ensure the cooling effect of the unit.

[0031] figure 1 It is a schematic structur...

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Abstract

The present invention provides a refrigeration control method, device and air conditioner for an air conditioner. The method includes: obtaining a high-pressure pressure value within a first preset time period under the condition that the outdoor ambient temperature is less than a preset temperature threshold; The pressure value determines whether the outdoor fan is frequently started and stopped; if so, the closed quantity of the condenser flow path is determined according to the high pressure pressure value; the corresponding flow path of the adjustable condenser is controlled to close according to the above closed quantity. The invention can identify whether the outdoor fan is frequently started and stopped, calculate the closing number of the condenser flow path under the condition of frequent starting and stopping, and control the corresponding flow path of the adjustable condenser to close according to the closed number, so as to reduce the heat exchange area of ​​the condenser, Improve the high pressure of the system, avoid the shutdown of the outdoor fan, and ensure the stable and reliable operation of the unit.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and in particular, to a refrigeration control method and device for an air conditioner, and an air conditioner. Background technique [0002] The use scenarios of air-conditioning units have low-temperature cooling requirements. For example, hotel kitchens and computer rooms with large heat dissipation still require cooling operation when the outdoor environment is 5°C or lower. In order to ensure the reliability of the motor, the motor speed is usually required to be greater than or equal to 300r / min. When the ambient temperature is low, the heat exchange demand of the unit is very low. When the motor runs at the lowest speed, it is still higher than the heat exchange demand of the unit, so the external fan will have a cycle. The system starts and stops frequently, at this time, the high pressure and temperature of the system fluctuate greatly, resulting in the large fluctuation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/83F24F11/871F24F1/14F25B39/04
CPCF24F11/871F24F11/83F24F11/64F24F1/14F25B39/04
Inventor 刘建勋黄春陈东
Owner NINGBO AUX ELECTRIC
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