CN103486782B - Refrigeration plant and defrosting control method thereof - Google Patents
Refrigeration plant and defrosting control method thereof Download PDFInfo
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- CN103486782B CN103486782B CN201310435833.6A CN201310435833A CN103486782B CN 103486782 B CN103486782 B CN 103486782B CN 201310435833 A CN201310435833 A CN 201310435833A CN 103486782 B CN103486782 B CN 103486782B
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Abstract
The invention discloses a kind of refrigeration plant and defrosting control method thereof, the method comprises: the refrigeration accumulated running time and the door opening times that detect described refrigeration plant, if described refrigeration accumulated running time reached for first scheduled time and described door opening times reaches predetermined door opening times, then enter defrost process, and exit temperature according to described refrigeration accumulated running time when entering defrost process and described door opening times determination defrost, the temperature of defrosting sensor reaches described defrost when exiting temperature, exits defrost process.According to the defrosting control method of the refrigeration plant of the embodiment of the present invention, defrost is controlled according to the frosting situation in refrigeration plant, refrigeration plant can not carry out defrost continually, reduce energy consumption, and when the frequency of usage of refrigeration plant is more and frosting degree is larger, defrost process can be entered rapidly in time.
Description
Technical field
The present invention relates to field of household appliances, particularly a kind of refrigeration plant defrosting control method and there is the refrigeration plant of this defrosting control method.
Background technology
The defrosting control method of traditional refrigeration plant is: the accumulative refrigerating operaton time reaches the scheduled time; enter defrost to prepare; reduce refrigeration control shutdown temperature i.e. cooling temperature rise in time balancing defrost in advance; connect heater when refrigeration stops and starting defrost; exit temperature when defrosting sensor temperature reaches predetermined defrost, disconnect heater and exit defrost.
But the white method of traditional refrigeration plant is not combined condition, have employed unified fixing method, when still defrost more frequently under the condition that the less frosting degree of frequency of usage is less, cause the waste of the energy; When under the condition that the more frosting degree of frequency of usage is larger still by former regular time defrost, cause defrost not in time, evaporator heat exchange weak effect, directly affect storage temperature and the increase energy consumption of food.In addition, before defrost, pre-refrigeration, because controlling lower than normal storage temperature, causes the increase of energy consumption.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent.For this reason, one object of the present invention is the defrosting control method proposing a kind of refrigeration plant.The defrosting control method of this refrigeration plant considers the time service condition of refrigeration plant, judge whether refrigeration plant enters defrost and temperature is exited in defrost according to the start number of times of refrigeration plant and refrigeration accumulated running time, thus reduce the energy consumption of refrigeration plant, and make refrigeration plant can defrost fast.
In addition, another object of the present invention is to propose a kind of refrigeration plant with this defrosting control method.
According to the defrosting control method of the refrigeration plant of the embodiment of the present invention, the method comprises: the refrigeration accumulated running time and the door opening times that detect described refrigeration plant, if described refrigeration accumulated running time reached for first scheduled time and described door opening times reaches predetermined door opening times, then enter defrost process, and exit temperature according to described refrigeration accumulated running time when entering defrost process and described door opening times determination defrost, the temperature of defrosting sensor reaches described defrost when exiting temperature, exits defrost process.
According to the defrosting control method of the refrigeration plant of the embodiment of the present invention, accumulated running time of freezing reach predetermined value and door opening times reaches corresponding number of times time enter defrost process, and exit temperature according to refrigeration accumulated running time and door opening times determination defrost.Thus, defrost is controlled according to the frosting situation in refrigeration plant,, thus when the less frosting degree of refrigeration plant frequency of usage is less, refrigeration plant can not carry out defrost continually, reduce energy consumption, and when the frequency of usage of refrigeration plant is more and frosting degree is larger, defrost process can be entered rapidly in time, avoid defrost situation not in time, add the heat transfer effect of evaporimeter, and be convenient to the fresh-keeping of the food deposited in refrigeration plant.Now, also improve the efficiency of defrost, decrease the unnecessary heat produced in defrost process, reduce energy consumption and improve energy utilization rate, energy-conserving and environment-protective, improve the use shape of refrigeration plant and reduce use cost.
In addition, the defrosting control method of refrigeration plant according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, described first scheduled time is multiple continuous print time periods, and each described time period is all to there being a predetermined door opening times, in a period of time, if door opening times is not less than corresponding predetermined door opening times, then enter defrost process, if door opening times is less than corresponding predetermined door opening times, then continue running refrigerating, and proceed to judge after entering the next time period.Thus, determine whether to enter defrost for different refrigeration accumulated running times and door opening times and temperature is exited in defrost, refrigeration plant can be made to enter defrost process in time, avoid defrost not in time and defrost phenomenon too frequently.
According to one embodiment of present invention, if described refrigeration accumulated running time reached for second scheduled time, then defrost process is entered.Thus, make refrigeration plant after operation second scheduled time, even if door opening times is zero, also can enter defrost process, thus avoid the inefficient situation of evaporator heat exchange that defrost causes not in time.
According to one embodiment of present invention; described defrost process comprises: after the compressor shutdown of described refrigeration plant; continue to run fan; when the fan that described defrosting sensor temperature reaches the first predetermined temperature or described refrigeration plant ran for the 3rd scheduled time; then control described fan to stop, and the defrosting heater opening described refrigeration plant starts defrost.Thus, by the operation of fan by the hot-air guiding evaporimeter in air circulation process in refrigerator, be convenient to the defrost of evaporimeter, but also can by the cold air guiding refrigerator near evaporimeter, improve the utilization rate of cold, and the temperature that improve in defrost process is raised the efficiency, the high and energy-conserving and environment-protective of defrost efficiency.
According to one embodiment of present invention, described first predetermined temperature is in the scope of-15 DEG C to-25 DEG C, and described 3rd scheduled time is in the scope of 5 minutes to 20 minutes.Thus, increase the utilization rate of cold further, and make refrigeration plant can enter defrost process rapidly.
According to one embodiment of present invention; described defrost process also comprises: after entering described defrost process; detect the running status of described compressor; if described compressor is not shut down; then continue to run described compressor; if also do not shut down through compressor described in predetermined stand-by time, then the described compressor shutdown of strong control.Thus, the operation of refrigeration plant can be ensured, be convenient to the fresh-keeping of the article in refrigeration plant.
According to one embodiment of present invention, described predetermined stand-by time is in the scope of 1 hour to 2 hours.Thus, refrigeration plant can be made to enter defrost process fast.
According to one embodiment of present invention, described defrost process also comprises: described defrosting sensor temperature reaches after described defrost exits temperature, run compressor, make described defrosting sensor temperature be not more than the second predetermined temperature or described compressor operating time reached for the 4th scheduled time, then control described fan and open.Thus, the air themperature in evaporimeter and air channel can be reduced rapidly, thus avoid the hot-air after by defrost to take the refrigeration chamber of refrigeration plant to, reduce the energy consumption of refrigeration plant, energy-conserving and environment-protective, and be convenient to the fresh-keeping of food.
According to one embodiment of present invention, described second predetermined temperature is in the scope of-15 DEG C to-25 DEG C, and described 4th scheduled time is in the scope of 5 minutes to 20 minutes.Thus, the temperature in defrost finisher and air channel can be reduced fast.
According to the refrigeration plant of the embodiment of the present invention, comprise the defrosting control method of the refrigeration plant according to previous embodiment of the present invention.
According to the refrigeration plant of the embodiment of the present invention, there is the defrosting control method of the refrigeration plant according to previous embodiment of the present invention.Thus, defrost is controlled according to the frosting situation in refrigeration plant,, thus when the less frosting degree of refrigeration plant frequency of usage is less, refrigeration plant can not carry out defrost continually, reduce energy consumption, and when the frequency of usage of refrigeration plant is more and frosting degree is larger, defrost process can be entered rapidly in time, avoid defrost situation not in time, add the heat transfer effect of evaporimeter, and be convenient to the fresh-keeping of the food deposited in refrigeration plant.Now, also improve the efficiency of defrost, decrease the unnecessary heat produced in defrost process, reduce energy consumption and improve energy utilization rate, energy-conserving and environment-protective, improve the use shape of refrigeration plant and reduce use cost.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the defrosting control method of the refrigeration plant of one embodiment of the present of invention.
Fig. 2 is the schematic flow sheet of the defrosting control method of the refrigeration plant of one embodiment of the present of invention.
Fig. 3 is the schematic flow sheet of the defrost process of the defrosting control method of the refrigeration plant of one embodiment of the present of invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the defrosting control method of the refrigeration plant of the embodiment of the present invention with reference to the accompanying drawings in detail.
As shown in Figure 1, according to the defrosting control method of the refrigeration plant of the embodiment of the present invention, the method comprises: the refrigeration accumulated running time and the door opening times that detect described refrigeration plant, wherein refrigeration accumulated running time refers to the time entering defrost process from last defrost process terminates or refrigeration plant is started shooting to this, door opening times refers to, within described refrigeration accumulated running time, open the number of times of the door body of refrigeration plant.If described refrigeration accumulated running time reached for first scheduled time and described door opening times reaches predetermined door opening times, then enter defrost process, and exit temperature according to described refrigeration accumulated running time when entering defrost process and described door opening times determination defrost, be directed to different refrigeration accumulated running times and door opening times, the defrost of defrost process is regulated to exit temperature, the temperature of defrosting sensor reaches described defrost when exiting temperature, exits defrost process.
According to the defrosting control method of the refrigeration plant of the embodiment of the present invention, accumulated running time of freezing reach predetermined value and door opening times reaches corresponding number of times time enter defrost process, and exit temperature according to refrigeration accumulated running time and door opening times determination defrost.Thus, defrost is controlled according to the frosting situation in refrigeration plant,, thus when the less frosting degree of refrigeration plant frequency of usage is less, refrigeration plant can not carry out defrost continually, reduce energy consumption, and when the frequency of usage of refrigeration plant is more and frosting degree is larger, defrost process can be entered rapidly in time, avoid defrost situation not in time, add the heat transfer effect of evaporimeter, and be convenient to the fresh-keeping of the food deposited in refrigeration plant.Now, also improve the efficiency of defrost, decrease the unnecessary heat produced in defrost process, reduce energy consumption and improve energy utilization rate, energy-conserving and environment-protective, improve the use shape of refrigeration plant and reduce use cost.
Further, in some embodiments of the invention, described first scheduled time is multiple continuous print time periods, and each described time period is all to there being a predetermined door opening times, in a period of time, if door opening times is not less than corresponding predetermined door opening times, then enter defrost process, if door opening times is less than corresponding predetermined door opening times, then continue running refrigerating, and proceed to judge after entering the next time period.Thus, determine whether to enter defrost for different refrigeration accumulated running times and door opening times and temperature is exited in defrost, refrigeration plant can be made to enter defrost process in time, avoid defrost not in time and defrost phenomenon too frequently.
Advantageously, if described refrigeration accumulated running time reached for second scheduled time, then defrost process is entered.Thus, make refrigeration plant after operation second scheduled time, even if door opening times is zero, also can enter defrost process, thus avoid the inefficient situation of evaporator heat exchange that defrost causes not in time.
Specifically, refrigeration is when accumulated running time, t reached the minimum temperature entering defrost process, the enabling that basis detects in a time range now N determines whether to enter defrost process, if within this time period, N is greater than predetermined door opening times, then enter defrost state, if in this segment limit, N is less than predetermined door opening times, then continue running refrigerating equipment to a second time period scope, proceeds to judge.
The condition (refrigeration accumulated running time t, door opening times N) entering defrost process of a specific embodiment of the present invention has been shown in table 1, and temperature T is exited in the defrost of correspondence.
Table 1
| t(h) | [8，10) | [10，14) | [14，18) | ≥18 |
| N (secondary) | ≥11 | ＞4 | ＞0 | ≥0 |
| T(℃) | 9 | 8 | 7 | 6 |
Fig. 2 is for according to the schematic flow sheet entering the control procedure of the condition of defrost process shown in table 1.
Specifically, at refrigeration accumulated running time t [8,10) time in scope, namely during 8≤t < 10, if door opening times N >=11, then enter defrost process, if door opening times N < 11, then continue running refrigerating, and detect refrigeration cumulative time t and door opening times N.
At refrigeration accumulated running time t [10,14) time in scope, namely during 10≤t < 14, if door opening times N > 4, then enter defrost process, if door opening times N≤4, then continue running refrigerating, and detect refrigeration cumulative time t and door opening times N.
At refrigeration accumulated running time t [14,18) time in scope, namely during 14≤t < 18, if door opening times N > 0, then enter defrost process, if door opening times N=0, then continue running refrigerating, and detect refrigeration cumulative time t and door opening times N.
If refrigeration accumulated running time t >=18, then without the need to judging door opening times N, directly enter defrost process.
Certainly, temperature T is exited in t and N entering defrost condition shown in table 1 and defrost, is only a specific embodiment of the present invention, not limiting the scope of the invention, and this is understandable for those of ordinary skill in the art.
As shown in Figure 3; in some embodiments of the invention; described defrost process comprises: after the compressor shutdown of described refrigeration plant; continue to run fan; when the fan that described defrosting sensor temperature reaches the first predetermined temperature or described refrigeration plant ran for the 3rd scheduled time; then control described fan to stop, and the defrosting heater opening described refrigeration plant starts defrost.Thus, by the operation of fan by the hot-air guiding evaporimeter in air circulation process in refrigerator, be convenient to the defrost of evaporimeter, but also can by the cold air guiding refrigerator near evaporimeter, improve the utilization rate of cold, and the temperature that improve in defrost process is raised the efficiency, the high and energy-conserving and environment-protective of defrost efficiency.
Further, described first predetermined temperature is in the scope of-15 DEG C to-25 DEG C, and described 3rd scheduled time is in the scope of 5 minutes to 20 minutes.Thus, increase the utilization rate of cold further, and make refrigeration plant can enter defrost process rapidly.
As shown in Figure 3; described defrost process also comprises: after entering described defrost process; detect the running status of described compressor; if described compressor is not shut down; then continue to run described compressor; if also do not shut down through compressor described in predetermined stand-by time, then the described compressor shutdown of strong control.Thus, the operation of refrigeration plant can be ensured, be convenient to the fresh-keeping of the article in refrigeration plant.
Advantageously, described predetermined stand-by time is in the scope of 1 hour to 2 hours.Thus, refrigeration plant can be made to enter defrost process fast.
As shown in Figure 3, because in defrost finisher and air channel, air themperature is higher, therefore, in examples more of the present invention, described defrost process also comprises: described defrosting sensor temperature reaches after described defrost exits temperature, operation compressor, makes described defrosting sensor temperature be not more than the second predetermined temperature or described compressor operating time reached for the 4th scheduled time, then control described fan and open.Thus, the air themperature in evaporimeter and air channel can be reduced rapidly, thus avoid the hot-air after by defrost to take the refrigeration chamber of refrigeration plant to, reduce the energy consumption of refrigeration plant, energy-conserving and environment-protective, and be convenient to the fresh-keeping of food.
In addition, described second predetermined temperature is in the scope of-15 DEG C to-25 DEG C, and described 4th scheduled time is in the scope of 5 minutes to 20 minutes.Thus, the temperature in defrost finisher and air channel can be reduced fast.
According to the refrigeration plant of the embodiment of the present invention, comprise the defrosting control method of the refrigeration plant according to previous embodiment of the present invention.
According to the refrigeration plant of the embodiment of the present invention, there is the defrosting control method of the refrigeration plant according to previous embodiment of the present invention.Thus, defrost is controlled according to the frosting situation in refrigeration plant,, thus when the less frosting degree of refrigeration plant frequency of usage is less, refrigeration plant can not carry out defrost continually, reduce energy consumption, and when the frequency of usage of refrigeration plant is more and frosting degree is larger, defrost process can be entered rapidly in time, avoid defrost situation not in time, add the heat transfer effect of evaporimeter, and be convenient to the fresh-keeping of the food deposited in refrigeration plant.Now, also improve the efficiency of defrost, decrease the unnecessary heat produced in defrost process, reduce energy consumption and improve energy utilization rate, energy-conserving and environment-protective, improve the use shape of refrigeration plant and reduce use cost.
Refrigeration plant of the present invention can be the refrigeration plants such as doubling.
Be all known according to other configuration examples of the refrigeration plant of the embodiment of the present invention for those of ordinary skills as casing and Men Ti etc. and operation, be not described in detail here.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this description or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a defrosting control method for refrigeration plant, is characterized in that, the method comprises:
Detect refrigeration accumulated running time and the door opening times of described refrigeration plant,
If described refrigeration accumulated running time reached for first scheduled time and described door opening times reaches predetermined door opening times, then enter defrost process, and exit temperature according to described refrigeration accumulated running time when entering defrost process and described door opening times determination defrost,
The temperature of defrosting sensor reaches described defrost when exiting temperature, exits defrost process.
2. the defrosting control method of refrigeration plant according to claim 1, it is characterized in that, described first scheduled time is multiple continuous print time periods, and each described time period is all to there being a predetermined door opening times, in a period of time, if door opening times is not less than corresponding predetermined door opening times, then enter defrost process, if door opening times is less than corresponding predetermined door opening times, then continue running refrigerating, and proceed to judge after entering the next time period.
3. the defrosting control method of refrigeration plant according to claim 2, is characterized in that, if described refrigeration accumulated running time reached for second scheduled time, then enters defrost process.
4. the defrosting control method of refrigeration plant according to claim 1; it is characterized in that; described defrost process comprises: after the compressor shutdown of described refrigeration plant; continue to run fan; when the fan that described defrosting sensor temperature reaches the first predetermined temperature or described refrigeration plant ran for the 3rd scheduled time; then control described fan to stop, and the defrosting heater opening described refrigeration plant starts defrost.
5. the defrosting control method of refrigeration plant according to claim 4, is characterized in that, described first predetermined temperature is in the scope of-15 DEG C to-25 DEG C, and described 3rd scheduled time is in the scope of 5 minutes to 20 minutes.
6. the defrosting control method of the refrigeration plant according to any one of claim 1-5; it is characterized in that; described defrost process also comprises: after entering described defrost process; detect the running status of described compressor; if described compressor is not shut down; then continue to run described compressor, if also do not shut down through compressor described in predetermined stand-by time, then the described compressor shutdown of strong control.
7. the defrosting control method of refrigeration plant according to claim 6, is characterized in that, described predetermined stand-by time is in the scope of 1 hour to 2 hours.
8. the defrosting control method of refrigeration plant according to claim 6, it is characterized in that, described defrost process also comprises: described defrosting sensor temperature reaches after described defrost exits temperature, run compressor, make described defrosting sensor temperature be not more than the second predetermined temperature or described compressor operating time reached for the 4th scheduled time, then control described fan and open.
9. the defrosting control method of refrigeration plant according to claim 8, is characterized in that, described second predetermined temperature is in the scope of-15 DEG C to-25 DEG C, and described 4th scheduled time is in the scope of 5 minutes to 20 minutes.
10. a refrigeration plant, is characterized in that, comprises the defrosting control method of the refrigeration plant according to any one of claim 1-9.
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| CN106123434B (en) * | 2016-06-24 | 2018-08-28 | 合肥美的电冰箱有限公司 | The control method of wind cooling refrigerator |
| CN108426412B (en) * | 2018-05-28 | 2020-08-25 | 海信（山东）冰箱有限公司 | Defrosting control method and device for refrigerator and refrigerator |
| CN109387025B (en) * | 2018-09-28 | 2020-09-22 | 珠海格力电器股份有限公司 | Refrigerating storage equipment, control method and device thereof and storage medium |
| CN109855356B (en) * | 2019-01-04 | 2020-09-29 | 海尔智家股份有限公司 | Refrigerator and method for judging frosting degree of evaporator in refrigerator |
| CN111076461A (en) * | 2019-12-19 | 2020-04-28 | 珠海格力电器股份有限公司 | Defrosting control method and device for refrigeration equipment and refrigeration equipment |
| CN111306885A (en) * | 2020-03-03 | 2020-06-19 | 广东奥马冰箱有限公司 | Air-cooling full-refrigerating box return air defrosting control method |
| CN114440536B (en) * | 2020-11-06 | 2023-07-25 | 青岛海尔电冰箱有限公司 | Defrosting control method and refrigeration household appliance with same |
| CN114646178B (en) * | 2020-12-17 | 2023-09-15 | 青岛海尔生物医疗股份有限公司 | Defrosting control method and refrigeration equipment |
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