Intelligent defrosting method of variable frequency air conditioner

A variable frequency air conditioner and air conditioner technology, applied in mechanical equipment and other directions, can solve problems such as large fluctuations in indoor temperature, affecting user comfort, and judgment of defrosting end conditions, so as to reduce the required time, improve defrosting efficiency, and improve The effect of comfort

Inactive Publication Date: 2019-01-04
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this application, during the defrosting judgment process, the defrosting opening conditions are judged by the heat exchanger outlet temperature Ti and the air conditioner operation interval Δt. The judgment process is too simple, which is not conducive to improving the accuracy of the air conditioner in judging the defrosting opening conditions. This application only involves defrosting opening conditions, and cannot solve the problem of how to accurately judge the defrosting end conditions, and the indoor temperature fluctuation range is too large during the defrosting process, which affects the comfort of users

Method used

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  • Intelligent defrosting method of variable frequency air conditioner
  • Intelligent defrosting method of variable frequency air conditioner
  • Intelligent defrosting method of variable frequency air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] as attached figure 1 As shown, an intelligent defrosting method for an inverter air conditioner, including:

[0074] S1. Turn on the air conditioner for heating;

[0075] S2. Judging whether the air conditioner meets the pre-defrosting conditions, and if so, enters the pre-defrosting stage;

[0076] S3, the preset temperature T that the air conditioner will heat 预设 Change to pre-defrost preset temperature T 预化霜 , with T 预化霜 Continue heating;

[0077] S4. Judging whether the air conditioner meets the defrosting conditions, if so, enters the defrosting stage, if not, continues the pre-defrosting process;

[0078] S5. The air conditioner performs defrosting, and judges whether the defrosting end condition is satisfied, and if so, ends the defrosting process, and if not, continues defrosting.

[0079] In this embodiment, when the air conditioner has not yet frosted, or the frosting condition is relatively light and not enough to turn on the defrost, the pre-defrost co...

Embodiment 2

[0083] In order to ensure the accuracy of judging the pre-defrosting conditions, defrosting conditions and defrosting end conditions in the present invention, so that the air conditioner can effectively realize the purpose of "intelligent defrosting, defrosting with frost, no defrosting without frost", this implementation The example introduces the contents of pre-defrost conditions, defrost conditions and defrost end conditions in detail.

[0084] An intelligent defrosting method for an inverter air conditioner, comprising:

[0085] S1. Turn on the air conditioner for heating;

[0086] S2. Judging whether the air conditioner meets the pre-defrosting conditions, and if so, enters the pre-defrosting stage;

[0087] S3, the preset temperature T that the air conditioner will heat 预设 Change to pre-defrost preset temperature T 预化霜 , with T 预化霜 Continue heating;

[0088] S4. Judging whether the air conditioner meets the defrosting conditions, if so, enters the defrosting stage,...

Embodiment 3

[0105] In order to facilitate the specific implementation process of the intelligent defrosting method in the present invention, to clarify the relevant parameters of the intelligent defrosting method in the logic judgment process, such as figure 1 , figure 2 As shown, this embodiment proposes an intelligent defrosting method for an inverter air conditioner, including:

[0106] S1. Turn on the air conditioner for heating;

[0107] S2. Judging whether the air conditioner meets the pre-defrosting conditions, and if so, enters the pre-defrosting stage;

[0108] S3, the preset temperature T that the air conditioner will heat 预设 Change to pre-defrost preset temperature T 预化霜 , with T 预化霜 Continue heating;

[0109] S4. Judging whether the air conditioner meets the defrosting conditions, if so, enters the defrosting stage, if not, continues the pre-defrosting process;

[0110] S5. The air conditioner performs defrosting, and judges whether the defrosting end condition is satis...

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Abstract

The invention provides an intelligent defrosting method of a variable frequency air conditioner. The intelligent defrosting method comprises the following steps that S1, the air conditioner is turnedon for heating; S2, whether a pre-defrosting condition of the air conditioner is met or not is judged, and if yes, a pre-defrosting stage is entered; S3, the air conditioner changes a preset temperature of heating to a preset pre-defrosting temperature, and heating is continued; S4, whether a defrosting condition of the air conditioner is met or not is judged, and if yes, a defrosting stage is entered; and S5, defrosting is carried out on the air conditioner, whether a defrosting end condition is met or not is judged, and if yes, the defrosting process is ended. According to the method, when the air conditioner is not frosted, or the frosting condition is light and not sufficient to start frosting, the pre-defrosting judgment is carried out firstly and then the pre-defrosting process is carried out, and the indoor temperature before defrosting is improved; and then defrosting is performed after the defrosting starting condition is met, the defrosting speed is increased, the time required for defrosting is shortened, the defrosting efficiency of the air conditioner is improved, and the indoor temperature is prevented from excessively falling, the fluctuation range of indoor temperature before and after defrosting is reduced, and the comfort degree of the user is improved.

Description

technical field [0001] The invention relates to an intelligent defrosting method for an inverter air conditioner. Background technique [0002] With the continuous development of household appliance technology, more and more household appliances have entered people's daily life and work, but in the process of application, various problems and failures of household appliances also occur, taking heat pump air conditioners as an example In winter, when the heat pump air conditioner performs low-temperature heating operation, after the temperature of the outdoor heat exchanger drops to the frost point, the surface of the heat exchanger begins to form frost. The accumulation becomes thicker and even freezes, which seriously affects the heating effect of the air conditioner. In order to ensure the continuous heating of the air conditioning system, it is necessary to defrost the air conditioner. [0003] At present, the automatic defrosting control program of the air conditioner ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/61
Inventor 应必业颜景旭杨勇
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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