Dust removing control method for heat exchanger of outdoor unit of air-cooled air conditioner

A technology for an air conditioner room and a control method, which is applied to heating and ventilation control systems, household heating, heating methods, etc., can solve problems such as the life of system components or the unsatisfactory dust removal effect.

Active Publication Date: 2014-02-12
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide an air-cooled air-conditioner outdoor unit heat exchanger dust removal control method that is easy to implement and does not affect the life of the system components, aiming to o

Method used

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  • Dust removing control method for heat exchanger of outdoor unit of air-cooled air conditioner

Examples

Experimental program
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Effect test

example 1

[0025] Assume that the outdoor unit heat exchanger dust removal main control board of the air-cooled air conditioner has four gears for the reverse speed of the motor and centrifugal fan blades of the outdoor unit, and see Table (1) for the reverse speed of each gear. And the running time of each reverse speed is 60 seconds.

[0026] Table (1): The speed table of each gear in the reverse operation of the outdoor fan

[0027] reverse gear

[0028] When the user stops using the air conditioner, the main control board detects this signal, and the motor and the centrifugal fan of the outdoor unit of the air-cooled air conditioner are controlled by the main control board, and run in reverse at the highest speed V1 of 850RPM for 60 seconds, and then Switch to the higher speed V2 and run reversely at 700RPM for 60 seconds, then continue to switch to the third speed V3 and run reversely at 550RPM for 60 seconds, and finally run reversely at the lowest speed V4 at 400RPM for ...

example 2

[0030] Assume that the outdoor unit heat exchanger dust removal main control board of the air-cooled air conditioner has three gears for the reverse running speed of the motor and centrifugal fan blades of the outdoor unit, and the reverse running speed for each gear is shown in Table (2). The running time corresponding to each reverse rotation speed is different, which are 120 seconds, 90 seconds and 60 seconds respectively.

[0031] Table (2): Reverse running tachometer for each gear of the outdoor motor

[0032] reverse gear

V 1

V 2

V 3

Reverse running speed (RPM, revolutions per minute)

800

700

600

[0033] Corresponding running time (seconds)

120

90

60

[0034] When the user stops using the air conditioner, the main control board detects this signal, and the motor and centrifugal fan of the outdoor unit of the air-cooled air conditioner will run in reverse at the highest speed V1...

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Abstract

The invention provides a dust removing control method for a heat exchanger of an outdoor unit of an air-cooled air conditioner. After a user stops using the air conditioner, a motor and centrifugal fan blades of the outdoor unit of the air-cooled air conditioner run in a reversed rotating mode under the control of a main control board, the motor and the centrifugal fan blades first run for T1 at the highest reversed rotating running speed V1, are switched to the next gear to fun for T2 at higher reversed rotating running speed V2, and are switched to the lower-speed gears sequentially according to the same control method till the motor and the fan blades run for Ti at the lowest reversed rotating running speed Vi. When running time reaches the total set running time T, the motor and the centrifugal fan blades of the outdoor unit stop running. By means of the method, dust on the heat exchanger of the outdoor unit of the air-cooled air conditioner can be well removed, heat exchange performance of the heat exchanger is improved, refrigeration and heating effects of the air conditioner are improved, the service life of parts of the air conditioner are not affected, and the method can provide comfortable living conditions for users.

Description

technical field [0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to a control method for dust removal of an outdoor unit heat exchanger of an air-cooled air conditioner. Background technique [0002] The heat exchanger of the outdoor unit of the existing split-type air-cooled air conditioner is always in contact with the air for heat exchange. Due to the dust in the air, after long-term deposition, it will block the fins of the heat exchanger, reduce the working efficiency of the heat exchanger, and Increase wind resistance and affect the life of outdoor motors. The conventional method for removing dust from the heat exchanger is manual cleaning, but this operation is complex and difficult, especially when the outdoor unit of the air conditioner is installed on a high-rise building, it will cause great difficulties and unsafe factors. [0003] There is a control method for the dust removal device of the heat exchanger...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 戚文端李金波曾祥兵李强
Owner MIDEA GRP CO LTD
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