Frequency converting control method, controller and refrigerator

A frequency conversion control and controller technology, applied in pump control, machine/engine, liquid variable capacity machinery, etc., can solve the problems of noisy users, high energy consumption, etc., to improve user experience, save power resources, and reduce environmental pollution Effect

Inactive Publication Date: 2017-01-04
HEFEI MIDEA REFRIGERATOR CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Refrigerators are usually in working condition throughout the year, which accounts for a large proportion of power consumption in the family, and the energy consumption of refrigerators determines its power consumption; at the same time, the noise generated by long-term operation will also bring troubles to users
[0003] The frequency conversion refrigerator control boards currently on the market are restricted by the existing frequency conversion control methods. There are two types of differentiation in the complete refrigerator: one is to pursue energy efficiency while ignoring the noise generated; the other is to reduce noise , resulting in high energy consumption
These two frequency conversion control methods have certain disadvantages in the use of refrigerators

Method used

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  • Frequency converting control method, controller and refrigerator
  • Frequency converting control method, controller and refrigerator
  • Frequency converting control method, controller and refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An embodiment of the present invention provides a flow chart of a frequency conversion control method, see figure 1 , the method includes the following steps:

[0038] Step 101: Obtain the operating frequency of the compressor.

[0039] In this step, the current running frequency of the compressor is obtained. Among them, the current operating frequency of the compressor is generally determined according to the ambient temperature of the refrigerator, the temperature in the freezer and the operating time and other parameters. Generally, the operating frequency of the compressor is relatively high under high load conditions, and the In some cases, the operating frequency of the compressor is relatively low.

[0040] Step 102: Judging whether the running frequency of the compressor is greater than a preset threshold, if yes, go to step 103; otherwise, go to step 104.

[0041] When the compressor runs at a high frequency, it is easy to generate high noise, which affects...

Embodiment 2

[0056] The embodiment of the present invention provides a further supplement to the method provided in the previous embodiment.

[0057] In this example, see image 3 , the above-mentioned frequency conversion control method further includes:

[0058] Step 105: Determine whether the current working mode is the energy consumption mode, if so, go to step 106, otherwise go to step 107, that is, perform frequency control according to the currently determined frequency conversion control method.

[0059] Step 106: Perform frequency control on the compressor by using the first frequency conversion control method.

[0060] Step 107: Perform frequency control according to the currently determined frequency conversion control mode. Here, the currently determined frequency conversion control mode refers to: the frequency conversion control mode determined according to the current operating frequency of the compressor.

[0061] Here, the energy consumption mode refers to a mode operat...

Embodiment 3

[0064] The embodiment of the present invention provides a controller, see Figure 4 , the controller includes: an acquisition unit 41, a first judging unit 42 and a control unit 43, wherein:

[0065] An acquisition unit 41, configured to acquire the operating frequency of the compressor;

[0066] The first judging unit 42 is configured to judge whether the operating frequency of the compressor acquired by the acquiring unit 41 is greater than a preset threshold;

[0067] The control unit 43 is configured to use the second frequency conversion control method to control the frequency of the compressor when the first judging unit 42 determines that the operating frequency of the compressor is greater than a preset threshold; and when the first judging unit determines that the compressor is When the operating frequency is less than or equal to the preset threshold, the frequency control of the compressor is carried out in the first frequency conversion control mode.

[0068] Pre...

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PUM

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Abstract

The invention provides a frequency converting control method, a controller and a refrigerator. The frequency converting control method comprises the steps that the operation frequency of a compressor is acquired; whether the operation frequency of the compressor is larger than the preset threshold value or not is judged; and if yes, the operation frequency of the compressor is controlled in a second frequency converting control mode, and if not, the operation frequency of the compressor is controlled in a first frequency converting control mode. The first frequency converting control mode is a control mode for reducing energy consumption, and the second frequency converting control mode is a control mode for reducing noise. According to the frequency converting control method, the different frequency converting control modes are adopted according to the different operation frequencies of the compressor, accordingly, energy consumption or noise within the refrigerator operation period is reduced according to the need as far as possible, the loss of the refrigerator during low-frequency stable operating is small, and the overall energy efficiency of the refrigerator is good; and meanwhile, the noise is lowered when the refrigerator operates at the high frequency under the condition that the demand for the refrigerating capacity is large, and the noise situation of the refrigerator is improved.

Description

technical field [0001] The invention relates to the field of intelligent control, in particular to a frequency conversion control method, a controller and a refrigerator. Background technique [0002] In the current society, refrigerators have almost become a necessary household appliance for all families. In recent years, the frequency conversion refrigerators have become more and more popular in the market. Refrigerators are usually in working condition throughout the year, and account for a large proportion of electricity consumption in households, and the energy consumption of refrigerators determines its electricity consumption; meanwhile, the noise generated by long-term operation will also bring troubles to users. [0003] The frequency conversion refrigerator control boards currently on the market are restricted by the existing frequency conversion control methods. There are two types of differentiation in the complete refrigerator: one is to pursue energy efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
CPCF04B49/06F04B2203/0204
Inventor 张宝玉申东熙孙超邵军方园吴贤萍
Owner HEFEI MIDEA REFRIGERATOR CO LTD
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