CN103575054B - Intelligent frequency conversion refrigerator - Google Patents
Intelligent frequency conversion refrigerator Download PDFInfo
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- CN103575054B CN103575054B CN201210284465.5A CN201210284465A CN103575054B CN 103575054 B CN103575054 B CN 103575054B CN 201210284465 A CN201210284465 A CN 201210284465A CN 103575054 B CN103575054 B CN 103575054B
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Abstract
The invention discloses a kind of refrigerator, this refrigerator is provided with on first, lower limit temperature, this compressor operating when refrigerator freezing room temperature reaches the first ceiling temperature, when reaching the first lower limit temperature, this compressor cuts out, this refrigerator is also provided with the lower limit temperature that freezes latter stage, arrange in the low electricity price time period one latter stage cooling time point, this, cooling time point was that compressor makes freezer temperature drop to the lower limit temperature that freezes this latter stage time used from the first ceiling temperature under frequency optimum traffic to the time of low electricity price time period terminal in latter stage, at this compressor operating of cooling time point in this in latter stage, freezer temperature be down to freeze lower limit temperature this latter stage time this compressor close.The invention provides a kind of refrigerator that an extra cooling time period can be set in the low electricity price time period, the compressor of this refrigerator can utilize the low electricity price time period to carry out extra refrigeration, when making to enter the high electricity price time period, freezer temperature is lower, thus reduces the power consumption in the high electricity price time period.
Description
Technical field
The present invention relates to a kind of refrigerator, particularly a kind of intelligent frequency conversion refrigerator.
Background technology
Refrigerator is a kind of refrigeration plant keeping constant low temperature, is also a kind of product for civilian use making food or other article keep constant low temperature cold conditions.The refrigerator of 91 ~ 95% is compressed steam refrigeration device in the world at present: this kind of refrigerator provides mechanical energy by motor, is done work to refrigeration system by compressor.Refrigeration system utilizes lower boiling cold-producing medium, and the principle absorbing heat during carburation by evaporation is made.Its advantage is that the life-span is long, easy to use.
Compressed steam refrigeration device is divided into again determines frequency refrigerator and frequency conversion refrigerator, and the former is more simple, but fixed refrigerator frequently maintains cryogenic temperature controls automatic switching by thermometric and realize, and is actually the temperature shock of carrying out repeatedly to food.Frequency conversion refrigerator, then by the rotational speed regulation of the temperature control point such as 5 degrees Celsius, 0 degree Celsius, makes food temperature impact and diminishes, and reduce food water and run off, energy-saving effect is corresponding raising also.But the control method of existing frequency-changeable compressor is more single, just environmentally temperature, refrigerating chamber design temperature decide the running frequency of compressor, the electricity price ignoring the time period from different places of carrying out step price is different, this makes running rate in the refrigerator high electricity price time period by day higher, and the low electricity price time period could not be made full use of at night, make electric cost expenditure higher.
Summary of the invention
The technical problem to be solved in the present invention is the difference reckoning without high electricity price time period and low electricity price time period in order to overcome frequency conversion refrigerator of the prior art, cause running rate in the refrigerator high electricity price time period by day higher, cause the defect that electric cost expenditure is higher, propose a kind ofly to consider different time sections electricity price gap when determining frequency and the upper and lower limit temperature of compressor operating, thus make compression function more reasonably to run to reduce the intelligent frequency conversion refrigerator of electric cost expenditure.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of refrigerator, comprise a compressor, the operating frequency that this compressor cooling is corresponding time most effective is frequency optimum traffic, this refrigerator is provided with the first ceiling temperature, first lower limit temperature, both mean value is the first fiducial temperature, both differences are first temperature difference, this compressor operating when refrigerator freezing room temperature reaches this first ceiling temperature, when refrigerator freezing room temperature reaches this first lower limit temperature, this compressor cuts out, its feature is: this refrigerator is also provided with a temperature lower than the lower limit temperature that freezes in latter stage of this first lower limit temperature, be provided with in the low electricity price time period one latter stage cooling time point, arrive this cooling time point in latter stage time this compressor operating under frequency optimum traffic until when refrigerator freezing room temperature be down to freeze lower limit temperature this latter stage time this compressor closedown, this, cooling time point was arranged so that in latter stage: when this compressor from this in latter stage cooling time point with this frequency optimum traffic startup optimization until the terminal of low electricity price time period is closed, from this in latter stage cooling time point to the terminal of low electricity price time period, the decline of refrigerator freezing room temperature can reach is down to from this first ceiling temperature the lower limit temperature that freezes this latter stage.
Wherein, this in latter stage cooling time point setting, those skilled in the art can draw according to the lower limit temperature that freezes this latter stage, this first ceiling temperature and the power calculation of this compressor under frequency optimum traffic.The present invention for freeze this latter stage lower limit temperature and this in latter stage cooling time point do not do concrete restriction, as long as the extra refrigeration of carrying out a period of time within the low electricity price time period can be completed.No matter before this cooling time point, this compressor is in operation or closed condition, under this compressor all will operate in frequency optimum traffic when arriving this cooling time point in latter stage in latter stage.After this, when refrigerator freezing room temperature be down to freeze lower limit temperature this latter stage time this compressor close, understandably, only need in this period of time, original this first lower limit temperature arranged to be substituted with the lower limit temperature that freezes this latter stage, just can reach such object.And to make such parameter modification in the existing control module of refrigerator be that those skilled in the art easily realize.
The time period of this section of refrigeration that what " latter stage " in above-mentioned " latter stage freeze lower limit temperature " and " cooling time point in latter stage " represented is is the end in the low electricity price time period, the corresponding effect arranged like this is exactly the refrigeration making compressor utilize the low electricity price time extra, thus refrigerator freezing room temperature is lower when entering the high electricity price time period, reduce the power consumption in the high electricity price time period.
Preferably, lower limit temperature is freezed this latter stage lower than this first lower limit temperature 2-6 degree Celsius.Those skilled in the art are to be understood that, the lower limit temperature that freezes this latter stage is not more low better, that the too low meeting of lower limit temperature makes the refrigerating efficiency of compressor decline because this latter stage freezes on the one hand, be also experience is warming up to this first ceiling temperature after freezer compartment of refrigerator drops to very low temperature on the other hand, the amplitude of variations in temperature is excessive is unfavorable for the fresh-keeping of the food of the indoor storage of refrigerator freezing.
Preferably, lower limit temperature is freezed this latter stage lower than this first lower limit temperature 3 degrees Celsius.
Preferably, this first temperature difference is 2.5-3.5 degree Celsius.
Preferably, this first temperature difference is 3 degrees Celsius.
Preferably, this refrigerator is provided with second temperature difference, the second ceiling temperature and the second lower limit temperature and substitutes this first temperature difference, the first ceiling temperature and the first lower limit temperature respectively within the low electricity price time period, wherein this second temperature difference is less than this first temperature difference, the difference of this second ceiling temperature and this second lower limit temperature is this second temperature difference, and the mean value of this second ceiling temperature and this second lower limit temperature is this first fiducial temperature.
The means of freezer temperature are controlled based on existing refrigerator, only need to use new parameter (i.e. second temperature difference, the second ceiling temperature and the second lower limit temperature) to substitute original parameter (first temperature difference, the first ceiling temperature and the first lower limit temperature) respectively in the control module, other aspects do not need to do any change, refrigerator just can be made basic with originally identical (being the first fiducial temperature) at freezer temperature, but the freezer temperature excursion within the low electricity price time period diminishes, thus ensure the uniformity of refrigerator temperature.
Preferably, this second temperature difference is more than or equal to 1 degree Celsius and is less than 2.5 degrees Celsius.
Preferably, this refrigerator is provided with the 3rd temperature difference, the 3rd ceiling temperature and the 3rd lower limit temperature and substitutes this first temperature difference, the first ceiling temperature and the first lower limit temperature respectively within the high electricity price time period, wherein the 3rd temperature difference is greater than this first temperature difference, the difference of the 3rd ceiling temperature and the 3rd lower limit temperature is the 3rd temperature difference, and the mean value of the 3rd ceiling temperature and the 3rd lower limit temperature is this first fiducial temperature.
Same, such setting also only needs to substitute original parameter by new parameter in the control module of existing refrigerator, and the freezer temperature excursion that can realize within the high electricity price time period becomes large technique effect, reduces the number of times of compressor startup-shutdown.
Preferably, the 3rd temperature difference is greater than 3.5 degrees Celsius and is less than or equal to 4 degrees Celsius.
Preferably, the operating frequency of this compressor within the high electricity price time period is more than or equal to this frequency optimum traffic.
Preferably, the operating frequency of this compressor in from the starting point of low electricity price time period to the process of cooling time point in this is less than or equal to the operating frequency of this compressor within the high electricity price time period in latter stage.
The time period at what the low electricity price time period was corresponding is night, the time period on what the high electricity price time period was corresponding is daytime.Compressor is within the high electricity price time period, and namely operating frequency by day avoids the situation being less than frequency optimum traffic, under compressor can be made to be operated in more efficient state as far as possible.And within the low electricity price time period, operating frequency when namely operating frequency is less than or equal to by day when night, can make the operating noise of compressor at night less.
Positive progressive effect of the present invention is: refrigerator of the present invention is by arranging an extra cooling time period at the end of low electricity price time period, be operated in its most effective frequency at this time period inner compressor, like this be arranged so that compressor can utilize the low electricity price time to carry out extra refrigeration, thus refrigerator freezing room temperature is lower when entering the high electricity price time period, reduce the power consumption in the high electricity price time period, reach the object of saving the electricity charge.
Accompanying drawing explanation
Fig. 1 is the temperature controlled schematic diagram of the refrigerator of first embodiment of the invention.
Fig. 2 be the present invention second and third, the temperature controlled schematic diagram of the refrigerator of four embodiments.
Detailed description of the invention
Present pre-ferred embodiments is provided, to describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
Embodiment 1
Be illustrated in figure 1 the temperature controlled schematic diagram of the refrigerator in embodiment 1, in Fig. 1, abscissa is time shaft, the ordinate of the curve of top is temperature, the temperature of refrigerator is shown over time, temperature for illustration of refrigerator controls, the curve of below illustrates that the situation of the opening and closing of the compressor of this refrigerator corresponding to variations in temperature, part top in the curve below this represent that the compressor of this refrigerator is opened, and part on the lower represents that the compressor of this refrigerator cuts out.The part that the refrigerator of the present embodiment is identical with the refrigerator of this area conventional design is: comprise a compressor, the operating frequency that this compressor cooling is corresponding time most effective is frequency optimum traffic, this refrigerator is provided with the first ceiling temperature, the first lower limit temperature 2, both mean value is the first fiducial temperature 5, both differences are first temperature difference 1, this compressor operating when refrigerator freezing room temperature reaches this first ceiling temperature, when refrigerator freezing room temperature reaches this first lower limit temperature 2, this compressor cuts out.And the refrigerator in the present embodiment is on the basis of above-mentioned conventional design, also be provided with a temperature lower than the lower limit temperature 3 that freezes in latter stage of this first lower limit temperature 2, be provided with in the low electricity price time period one latter stage cooling time point, arrive this cooling time point in latter stage time this compressor operating under frequency optimum traffic until when refrigerator freezing room temperature be down to freeze lower limit temperature 3 this latter stage time this compressor closedown, this, cooling time point was arranged so that in latter stage: when this compressor from this in latter stage cooling time point with this frequency optimum traffic startup optimization until the terminal of low electricity price time period is closed, from this in latter stage cooling time point to the terminal of low electricity price time period, the decline of refrigerator freezing room temperature can reach is down to from this first ceiling temperature the lower limit temperature 3 that freezes this latter stage.Wherein, from this in latter stage cooling time point to time period 7 as shown in Figure 1 this period of the terminal of low electricity price time period.
Wherein, the power of this compressor under frequency optimum traffic is a value determined, when this latter stage freeze lower limit temperature 3 and this first ceiling temperature determine, those skilled in the art can calculate compressor under frequency optimum traffic, make refrigerator freezing room temperature drop to the lower limit temperature 3 that freezes this latter stage time used from the first ceiling temperature.The terminal of low electricity price time period is known, can calculate the definite moment of cooling time point in this accordingly in latter stage, and in the existing control module of refrigerator, increase this parameter of cooling time point in latter stage.Those skilled in the art are to be understood that, the present invention for freeze this latter stage lower limit temperature 3 and this in latter stage cooling time point do not do concrete restriction, as long as they have the numerical value determined, and the extra refrigeration of carrying out a period of time within the low electricity price time period can be completed, all applicable.Well known, carrying out the area of step price, the electricity price of different time sections is different, namely there is high electricity price time period and low electricity price time period, the extra refrigeration of carrying out a period of time within the low electricity price time period is actually and makes compressor instead of acting in one high electricity price time with the acting in one low electricity price time, thus saves electricity charge spending.
In a preferred embodiment, the value of lower limit temperature 3 of freezing this latter stage reaches 2-6 degree Celsius lower than this first lower limit temperature 2.Those skilled in the art are to be understood that, because the first upper and lower limit temperature value all can adjust according to actual needs, and the value of the lower limit temperature 3 that freezes this latter stage and effect associated, so this latter stage freezes, the value demand fulfillment of lower limit temperature 3 and the first lower limit temperature 2 are worth certain numerical relation, for example, the lower limit temperature 3 that can be set to freeze this latter stage is lower than this first lower limit temperature 23 degrees Celsius.
In addition, no matter before this cooling time point, this compressor is in operation or closed condition, under this compressor all will operate in frequency optimum traffic when arriving this cooling time point in latter stage in latter stage.After this, when refrigerator freezing room temperature be down to freeze lower limit temperature 3 this latter stage time this compressor close.Understandably, only need in this period of time, original this first lower limit temperature 2 arranged to be substituted with the lower limit temperature 3 that freezes this latter stage, just can reach such object.And to make such parameter modification in the existing control module of refrigerator be that those skilled in the art easily realize.
Embodiment 2
On the basis of embodiment 1, this first temperature difference 1 is 2.5-3.5 degree Celsius.More specifically, this first temperature difference 1 can be 3 degrees Celsius.As shown in Figure 2, this refrigerator in the present embodiment within the low electricity price time period, be provided with the second temperature difference 4, second ceiling temperature and the second lower limit temperature substitutes this first temperature difference 1, first ceiling temperature and the first lower limit temperature 2 respectively, wherein this second temperature difference 4 is less than this first temperature difference 1, the difference of this second ceiling temperature and this second lower limit temperature is this second temperature difference 4, and the mean value of this second ceiling temperature and this second lower limit temperature is this first fiducial temperature 5.
Like this, while the first fiducial temperature 5 is constant, instead of the first original temperature difference 1 with the second less temperature difference 4, that is constant the and excursion of temperature of the mean temperature of freezer compartment of refrigerator reduces, thus improves the uniformity of refrigerator freezing room temperature.The realization of this effect only needs to use new parameter (i.e. the second temperature difference 4, second ceiling temperature and the second lower limit temperature) to substitute original parameter (the first temperature difference 1, first ceiling temperature and the first lower limit temperature 2) respectively in the control module, other aspects do not need to do any change, can be realized by this area routine techniques means.Preferably, this second temperature difference 4 is 2 degrees Celsius.Those skilled in the art are to be understood that, this second temperature difference 4 needs are lower than this first temperature difference 1, can reach the effect of the uniformity improving refrigerator freezing room temperature, cause high frequent switch simultaneously in order to avoid the temperature difference is too small, in this area, the temperature difference of refrigerator arranges and is not less than 1 degree Celsius.
Embodiment 3
On the basis of embodiment 1 or embodiment 2, this refrigerator can be provided with the 3rd temperature difference 6, the 3rd ceiling temperature and the 3rd lower limit temperature and substitute this first temperature difference 1, first ceiling temperature and the first lower limit temperature 2 respectively within the high electricity price time period, wherein the 3rd temperature difference 6 is greater than this first temperature difference 1, the difference of the 3rd ceiling temperature and the 3rd lower limit temperature is the 3rd temperature difference the 6, three ceiling temperature is this first fiducial temperature 5 with the mean value of the 3rd lower limit temperature.A time point 8 as shown in Figure 2 separates high electricity price time period and low electricity price time period, is wherein the high electricity price time period before this time point 8.Same, such setting also only needs to substitute original parameter by new parameter in the control module of existing refrigerator.Such parameter substitutes the freezer temperature excursion that can make within the high electricity price time period and becomes large, reduces the number of times of compressor startup-shutdown, thus extends the service life of compressor.
On the other hand, if the 3rd temperature difference 6 is excessive, namely in the high electricity price time period, the range of temperature of freezer compartment of refrigerator is excessive, will make the process of the large-scale cooling that heats up of food experience stored, be unfavorable for the fresh-keeping of food, so the value of the 3rd temperature difference 6 should be not excessive yet.The determination of the selectable maximum of the 3rd temperature difference 6 belongs to ordinary skill in the art means, does not repeat them here.In a preferred embodiment, the 3rd temperature difference is 4 degrees Celsius.Understandably, the 3rd temperature difference also can be set to other values, only needs to be greater than this first temperature difference 1, and simultaneously value is excessive and affect the fresh-keeping of food, all applicable.
Embodiment 4
The difference of the present embodiment and embodiment 1,2,3 is, the operating frequency of this compressor within the high electricity price time period is more than or equal to this frequency optimum traffic, and the operating frequency in from the starting point of low electricity price time period to the process of cooling time point in this is less than or equal to the operating frequency of this compressor within the high electricity price time period in latter stage.
Known, the time period at what the low electricity price time period was corresponding is night, the time period on what the high electricity price time period was corresponding is daytime.Compressor is within the high electricity price time period, and namely operating frequency by day avoids the situation being less than frequency optimum traffic, under compressor can be made like this to be operated in more efficient state as far as possible.And within the low electricity price time period, operating frequency when namely operating frequency is less than or equal to by day when night, can make the operating noise of compressor at night little as much as possible.
The present embodiment does not provide this compressor in the concrete operating frequency of different time sections, because the operating frequency of compressor directly has influence on its refrigeration work consumption, so first the selection of its operating frequency should ensure at least can complete refrigerating function.Can determine under different room temperatures by ordinary skill in the art means, compressor can complete the power bracket of refrigerating function and corresponding operating frequency range, in this scope, select power respectively again according to different time sections.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (9)
1. a refrigerator, comprise a compressor, the operating frequency that this compressor cooling is corresponding time most effective is frequency optimum traffic, this refrigerator is provided with the first ceiling temperature, first lower limit temperature, both mean value is the first fiducial temperature, both differences are first temperature difference, this compressor operating when refrigerator freezing room temperature reaches this first ceiling temperature, when refrigerator freezing room temperature reaches this first lower limit temperature, this compressor cuts out, it is characterized in that, this refrigerator is also provided with a temperature lower than the lower limit temperature that freezes in latter stage of this first lower limit temperature, be provided with in the low electricity price time period one latter stage cooling time point, when arriving this cooling time point in latter stage, this compressor operating is under frequency optimum traffic, until when refrigerator freezing room temperature be down to freeze lower limit temperature this latter stage time this compressor close, this, set-up mode of cooling time point was in latter stage: using the time point after terminal forward one time period of low electricity price time period as cooling time point in this in latter stage, wherein, this time period is that this compressor makes the temperature of freezer compartment of refrigerator drop to the lower limit temperature that freezes this latter stage time used from this first ceiling temperature under frequency optimum traffic,
This refrigerator is provided with the 3rd temperature difference, the 3rd ceiling temperature and the 3rd lower limit temperature and substitutes this first temperature difference, the first ceiling temperature and the first lower limit temperature respectively within the high electricity price time period, wherein the 3rd temperature difference is greater than this first temperature difference, the difference of the 3rd ceiling temperature and the 3rd lower limit temperature is the 3rd temperature difference, and the mean value of the 3rd ceiling temperature and the 3rd lower limit temperature is this first fiducial temperature;
This refrigerator is provided with second temperature difference, the second ceiling temperature and the second lower limit temperature and substitutes this first temperature difference, the first ceiling temperature and the first lower limit temperature respectively within the low electricity price time period, wherein this second temperature difference is less than this first temperature difference, the difference of this second ceiling temperature and this second lower limit temperature is this second temperature difference, and the mean value of this second ceiling temperature and this second lower limit temperature is this first fiducial temperature.
2. refrigerator as claimed in claim 1, it is characterized in that, the lower limit temperature that freezes this latter stage is lower than this first lower limit temperature 2-6 degree Celsius.
3. refrigerator as claimed in claim 2, it is characterized in that, the lower limit temperature that freezes this latter stage is lower than this first lower limit temperature 3 degrees Celsius.
4. refrigerator as claimed in claim 1, it is characterized in that, this first temperature difference is 2.5-3.5 degree Celsius.
5. refrigerator as claimed in claim 4, it is characterized in that, this first temperature difference is 3 degrees Celsius.
6. refrigerator as claimed in claim 1, it is characterized in that, this second temperature difference is more than or equal to 1 degree Celsius and is less than 2.5 degrees Celsius.
7. refrigerator as claimed in claim 1, it is characterized in that, the 3rd temperature difference is greater than 3.5 degrees Celsius and is less than or equal to 4 degrees Celsius.
8. refrigerator as claimed in claim 1, it is characterized in that, the operating frequency of this compressor within the high electricity price time period is more than or equal to this frequency optimum traffic.
9. refrigerator as claimed in claim 8, is characterized in that, the operating frequency of this compressor in from the starting point of low electricity price time period to the process of cooling time point in this is less than or equal to the operating frequency of this compressor within the high electricity price time period in latter stage.
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| CN201210284465.5A CN103575054B (en) | 2012-08-10 | 2012-08-10 | Intelligent frequency conversion refrigerator |
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| CN201210284465.5A CN103575054B (en) | 2012-08-10 | 2012-08-10 | Intelligent frequency conversion refrigerator |
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| CN103575054B true CN103575054B (en) | 2016-04-20 |
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| CN104634063B (en) * | 2015-03-12 | 2017-10-27 | 合肥美的电冰箱有限公司 | The control method of refrigerator, the control device of refrigerator and refrigerator |
| JP6767838B2 (en) * | 2016-10-13 | 2020-10-14 | 東芝ライフスタイル株式会社 | refrigerator |
| CN109931747A (en) * | 2019-01-29 | 2019-06-25 | 长虹美菱股份有限公司 | A kind of control method with power saving function refrigerator |
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| CN1680766A (en) * | 2004-04-09 | 2005-10-12 | 广东科龙电器股份有限公司 | Controlling system and method for refrigerator with time interval run |
| CN201497272U (en) * | 2009-06-16 | 2010-06-02 | 泰州乐金电子冷机有限公司 | Air cooling frequency-conversion multi-door refrigerator capable of working with low noise at night |
| CN101922845A (en) * | 2010-05-07 | 2010-12-22 | 海信容声(广东)冰箱有限公司 | Timesharing control intelligent refrigerator and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4570208B2 (en) * | 2000-06-13 | 2010-10-27 | 株式会社アドバンテスト | Classification control method for tested electronic components |
| KR100644824B1 (en) * | 2003-10-13 | 2006-11-13 | 엘지전자 주식회사 | The control method of refrigerator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680766A (en) * | 2004-04-09 | 2005-10-12 | 广东科龙电器股份有限公司 | Controlling system and method for refrigerator with time interval run |
| CN201497272U (en) * | 2009-06-16 | 2010-06-02 | 泰州乐金电子冷机有限公司 | Air cooling frequency-conversion multi-door refrigerator capable of working with low noise at night |
| CN101922845A (en) * | 2010-05-07 | 2010-12-22 | 海信容声(广东)冰箱有限公司 | Timesharing control intelligent refrigerator and control method thereof |
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