Intelligent frequency conversion refrigerator

A refrigerator and operating frequency technology, applied in the field of intelligent variable frequency refrigerators, can solve the problems of high operating rate of refrigerators and high electricity expenses, and achieve the effects of saving electricity, reducing power consumption, and ensuring uniformity

Inactive Publication Date: 2014-02-12
TAIZHOU LG ELECTRONICS REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the fact that the frequency conversion refrigerators in the prior art do not take into account the difference between the high electricity price time period and the low electricity price time period, resulting in a relatively high operating rate of the refrigerator during the high electricity price time period during the day, resulting in electricity bills Due to the high defect, a smart inverter refrigerator is proposed that takes into account the difference in electricity prices in different time periods when determining the operating frequency of the compressor and the upper and lower limit temperatures, so that the compressor can operate more reasonably to reduce electricity bills

Method used

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Embodiment 1

[0026] Such as figure 1 Shown is the schematic diagram of the temperature control of the refrigerator in embodiment 1, figure 1 The middle abscissa is the time axis, and the ordinate of the upper curve is the temperature, which shows the temperature change of the refrigerator with time, which is used to illustrate the temperature control of the refrigerator. The lower curve shows the compressor of the refrigerator corresponding to the temperature change. In the case of opening and closing, the upper part of the lower curve indicates that the compressor of the refrigerator is turned on, and the lower part indicates that the compressor of the refrigerator is turned off. The same part of the refrigerator of this embodiment as the refrigerator of conventional design in the field is: it includes a compressor, and the corresponding operating frequency when the refrigeration efficiency of the compressor is the highest is the optimal operating frequency, and the refrigerator is provid...

Embodiment 2

[0031] On the basis of Example 1, the first temperature difference 1 is 2.5-3.5 degrees Celsius. More specifically, the first temperature difference 1 may be 3 degrees Celsius. Such as figure 2 As shown, the refrigerator in this embodiment is provided with a second temperature difference 4, a second upper limit temperature and a second lower limit temperature to replace the first temperature difference 1, the first upper limit temperature and the first lower limit temperature 2 respectively during the low electricity price time period. , wherein the second temperature difference 4 is smaller than the first temperature difference 1, the difference between the second upper limit temperature and the second lower limit temperature is the second temperature difference 4, and the average value of the second upper limit temperature and the second lower limit temperature is the The first reference temperature 5.

[0032] In this way, while the first reference temperature 5 remains ...

Embodiment 3

[0034] On the basis of Embodiment 1 or Embodiment 2, the refrigerator can be set with a third temperature difference 6, a third upper limit temperature and a third lower limit temperature to replace the first temperature difference 1, the first upper limit temperature and the third lower limit temperature respectively during the period of high electricity price. The first lower limit temperature 2, wherein the third temperature difference 6 is greater than the first temperature difference 1, the difference between the third upper limit temperature and the third lower limit temperature is the third temperature difference 6, the third upper limit temperature and the third lower limit temperature The average value of is the first reference temperature 5. Such as figure 2 A time point 8 shown separates the time period of high electricity price and the time period of low electricity price, wherein the time point 8 is preceded by the time period of high electricity price. Similarl...

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Abstract

The invention discloses a refrigerator, which is provided with a first upper limit temperature and a first lower limit temperature, when the temperature of a freezing chamber of the refrigerator reaches the first upper limit temperature, a compressor operates, when the temperature of the freezing chamber of the refrigerator reaches the first lower limit temperature, the compressor is closed, the refrigerator is also provided with a last phase refrigerating lower limit temperature, a last phase refrigerating time point is arranged in a lower electricity price time bucket, the time from the last phase refrigerating time point to the end point of the lower electricity price time bucket is the time consumed by the compressor to enable the temperature of the freezing chamber to be dropped to the last phase refrigerating lower limit temperature from the first upper limit temperature under the best working frequency, the compressor operates at the last phase refrigerating time point, and the compressor is closed when the temperature of the freezing chamber is dropped to the last phase refrigerating lower limit temperature. The invention provides the refrigerator which is capable of setting an extra refrigerating time bucket in the lower electricity price time bucket, the compressor of the refrigerator can be used for additionally refrigerating by utilizing the lower electricity price time bucket, and the temperature of the freezing chamber is enabled to be relatively low when the refrigerator enters a high electricity price time bucket, so that electricity consumption in the high electricity price time bucket is reduced.

Description

technical field [0001] The invention relates to a refrigerator, in particular to an intelligent variable frequency refrigerator. Background technique [0002] A refrigerator is a refrigeration device that maintains a constant low temperature, and it is also a civilian product that keeps food or other items in a constant low temperature and cold state. At present, 91 to 95% of the refrigerators in the world are compression refrigerators: this type of refrigerator is provided with mechanical energy by the motor, and works on the refrigeration system through the compressor. The refrigeration system is made of the principle of absorbing heat when evaporating and vaporizing the refrigerant with a low boiling point. Its advantages are long life and convenient use. [0003] Compression refrigerators are further divided into fixed-frequency refrigerators and variable-frequency refrigerators. The former is simpler, but fixed-frequency refrigerators maintain the freezing temperature...

Claims

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Application Information

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IPC IPC(8): F25D29/00
Inventor 夏必聪
Owner TAIZHOU LG ELECTRONICS REFRIGERATOR CO LTD
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