CN109764609B - Refrigerator and defrosting control method thereof - Google Patents
Refrigerator and defrosting control method thereof Download PDFInfo
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- CN109764609B CN109764609B CN201811625555.XA CN201811625555A CN109764609B CN 109764609 B CN109764609 B CN 109764609B CN 201811625555 A CN201811625555 A CN 201811625555A CN 109764609 B CN109764609 B CN 109764609B
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Abstract
The invention provides a defrosting control method of a refrigerator, which comprises the following steps: entering a self-test mode, and acquiring an evaporator temperature T0; setting an opening temperature Ta and comparing the evaporator temperature T0 with the opening temperature Ta; judging that the evaporator temperature T0 is greater than the starting temperature Ta, and entering a circulating defrosting mode; setting cycle times n and executing heating defrosting for n periods; wherein the defrosting step in a single period comprises the following steps: monitoring and acquiring a freezing chamber temperature T2; when the refrigerating chamber temperature T2 is judged to be less than or equal to the minimum threshold temperature Tb, heating for defrosting is started; and when the freezing chamber temperature T2 is judged to be greater than or equal to the maximum threshold temperature Tc, the heating defrosting is turned off. According to the invention, through circulating defrosting operation, temperature fluctuation generated during defrosting is greatly reduced, and defrosting time interval is also reduced, so that a good working environment of the evaporator is ensured, and a good freezing storage effect in a refrigerator chamber is also ensured.
Description
Technical Field
The invention relates to a refrigerator and a defrosting control method thereof, in particular to a refrigerator capable of defrosting for multiple times and a defrosting control method thereof.
Background
In the existing refrigerator, the general defrosting control mode is mostly single to monitor the temperature of the evaporator cabin, and when the defrosting sensor detects that the temperature heating reaches a certain degree, namely the default set defrosting completion temperature, the heating is directly closed to finish the defrosting mode, so that the cabin defrosting of the default evaporator is completed. Direct heating defrosting can lead to the indoor temperature in refrigerator room to rise thereupon like this, indirectly influences the fresh-keeping condition such as freshness, the edible taste of the indoor storage edible material of room to there is stricter requirement to some special edible materials to the temperature fluctuation, if the temperature fluctuation is too high, can directly shorten the storage cycle of edible material, is unfavorable for the storage of edible material.
Disclosure of Invention
In order to solve the above problems, the present invention provides a defrosting control method of a refrigerator, the defrosting control method including: entering a self-test mode, and acquiring an evaporator temperature T0; setting an opening temperature Ta and comparing the evaporator temperature T0 with the opening temperature Ta; judging that the evaporator temperature T0 is greater than the starting temperature Ta, and entering a circulating defrosting mode; setting cycle times n and executing heating defrosting for n periods; wherein the defrosting step in a single period comprises the following steps: monitoring and acquiring a freezing chamber temperature T2; when the refrigerating chamber temperature T2 is judged to be less than or equal to the minimum threshold temperature Tb, heating for defrosting is started; and when the freezing chamber temperature T2 is judged to be greater than or equal to the maximum threshold temperature Tc, the heating defrosting is turned off.
As a further improvement of the present invention, the step of "setting the number of cycles n and performing heating defrosting for n cycles" specifically includes: setting preset temperature intervals, wherein each preset temperature interval is provided with a corresponding cycle number; and acquiring the current ambient temperature T3 and matching the current ambient temperature T3 with the corresponding preset temperature interval to acquire the corresponding cycle number n.
As a further improvement of the present invention, the step of "setting the opening temperature Ta and comparing the evaporator temperature T0 with the opening temperature Ta" further comprises: and judging that the evaporator temperature T0 is less than or equal to the opening temperature Ta, and entering a single defrosting mode.
As a further improvement of the present invention, the step "determining that the evaporator temperature T0 is less than the opening temperature Ta, and entering the single defrosting mode" specifically includes: heating defrosting is started until the evaporator temperature T0 is greater than the starting temperature Ta.
As a further refinement of the invention, the maximum threshold temperature Tc differs from the minimum threshold temperature Tb by 5 degrees celsius.
In order to solve the above problems, the present invention provides a refrigerator including an evaporator for cooling and a heating module for defrosting, the refrigerator further including: the control module controls the heating module to enter a self-checking mode and a circulating defrosting mode by using any one of the control methods; the first temperature sensor is arranged on the evaporator and used for detecting and feeding back the evaporator temperature T0 to the control module; and the second temperature sensor is arranged in the freezing chamber and used for detecting and feeding back the freezing chamber temperature T2 to the control module.
As a further development of the invention, a spacing of at least 10cm is maintained between the first temperature sensor and the heating module.
As a further improvement of the present invention, the refrigerator further comprises: and the third temperature sensor is used for detecting and feeding back the ambient temperature T3 around the refrigerator to the control module.
The invention has the beneficial effects that: according to the invention, through circulating defrosting operation, temperature fluctuation generated during defrosting is greatly reduced, and defrosting time interval is also reduced, so that a good working environment of the evaporator is ensured, and a good freezing storage effect in a refrigerator chamber is also ensured.
Drawings
FIG. 1 is a flow chart of the control method of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Moreover, repeated reference numerals or designations may be used in various embodiments. These iterations are merely for simplicity and clarity of describing the present invention, and are not intended to represent any correlation between the different embodiments or configurations discussed.
As shown in fig. 1, the present invention provides a refrigerator and a defrosting control method for defrosting the refrigerator, specifically, the refrigerator includes an evaporator for cooling and a heating module for defrosting, in this embodiment, the heating module is provided as a heating wire; meanwhile, the refrigerator also comprises a control module for directly controlling the heating module to switch the working mode and switching the heating defrosting function.
The refrigerator also comprises a first temperature sensor which is arranged on the evaporator and used for detecting and feeding back the temperature of the evaporator to the control module; a second temperature sensor is arranged in the freezing chamber and used for detecting and feeding back the temperature of the freezing chamber to the control module; and a third temperature sensor for detecting and feeding back the ambient temperature around the refrigerator to the control module. Specifically, the first temperature sensor in this embodiment is disposed at a distance of 10-15 cm from the central portion of the evaporator to ensure that the detected temperature is too high to affect the judgment of the control module on the temperature.
By combining the modules and the functions, the defrosting control method provided by the invention specifically comprises the following steps:
s1, the control module controls the heating module to enter a self-checking mode, and obtains the evaporator temperature T0 detected by the first temperature sensor;
s2, setting the opening temperature Ta and comparing the evaporator temperature T0 with the opening temperature Ta;
s3, when the evaporator temperature T0 is judged to be less than or equal to the opening temperature Ta, the heating module is controlled to enter a single defrosting mode;
specifically, the single defrosting mode is as follows: the heating module works, starts heating for defrosting until the evaporator temperature T0 fed back by the first temperature sensor is higher than the starting temperature Ta. Generally, when a refrigerator has a quick-freezing or deep-freezing function and is just finished working under the function, the temperature around an evaporator compartment is very low, if frost starts to melt and the frost on an evaporator is not completely melted at one time, a lot of ice can be quickly accumulated around the evaporator after a short heating is finished, and if the refrigeration is continued, the frost continues to be formed, and the operation is repeated, so that the refrigeration performance of the evaporator can be seriously influenced; meanwhile, in the embodiment, the opening temperature Ta is set to be 0 ℃, the risk of icing around the evaporator is reduced through a self-checking mode, and the stability and reliability of the whole defrosting control process are enhanced.
S4, judging that the evaporator temperature T0 is greater than the opening temperature Ta, and entering a circulating defrosting mode;
s5, setting the cycle number n and executing heating defrosting for n periods; specifically, the control module is provided with preset temperature intervals, such as [ 0-10 ℃ ], [ 10-25 ℃ ], [ 25-32 ℃ ], [ 32-43 ℃ ], each preset temperature interval is provided with a corresponding cycle number, and after the third temperature sensor detects the current ambient temperature T3 of the refrigerator, the third temperature sensor feeds back the current ambient temperature to the control module and matches the current ambient temperature to the corresponding preset temperature interval to obtain the corresponding cycle number.
Wherein, the defrosting step of a single period is as follows:
a1, after entering the circulating defrosting mode, the second temperature sensor monitors the temperature T2 of the freezing chamber in real time and feeds the temperature back to the control module;
a2, when the control module judges that the temperature T2 of the freezing chamber is less than or equal to the minimum threshold temperature Tb, the control module controls the heating module to start heating for defrosting;
a3, when the control module judges that the temperature T2 of the freezing chamber is greater than or equal to the maximum threshold temperature Tc, the control module controls the heating module to close heating and defrosting to finish a defrosting cycle.
Further, the difference between the maximum threshold temperature Tc and the minimum threshold temperature Tb in this embodiment is 5 degrees celsius, that is, Tc = Tb +5 ℃; because the defrosting is started when the temperature T2 of the freezing chamber is less than or equal to the minimum threshold temperature Tb, and the defrosting is stopped until the temperature T2 of the freezing chamber is greater than or equal to Tb +5 ℃, namely Tb is the temperature of the freezing chamber at the time of defrosting, if the temperature in the control chamber rises to be less than 5 ℃, the surface temperature fluctuation of the corresponding stored food is less than 1 ℃, the freshness degree of the frozen food can be maintained, the temperature fluctuation generated in the defrosting process of the refrigerator is greatly reduced, and the freshness of the stored food is further ensured.
According to the invention, the signal of the sensor is directly fed back to the control module for processing so as to adjust the defrosting work of the heating module, and the circulating defrosting work greatly reduces the temperature fluctuation generated during defrosting and also reduces the defrosting time interval, thereby ensuring that the evaporator has a good working environment and a good freezing storage effect in a refrigerator compartment.
It should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The above detailed description is merely illustrative of possible embodiments of the present invention and is not intended to limit the scope of the invention, which is intended to include all equivalent embodiments or modifications within the scope of the present invention without departing from the technical spirit of the present invention.
Claims (8)
1. A defrosting control method of a refrigerator, characterized by comprising:
entering a self-test mode, and acquiring an evaporator temperature T0;
setting an opening temperature Ta and comparing the evaporator temperature T0 with the opening temperature Ta;
judging that the evaporator temperature T0 is greater than the starting temperature Ta, and entering a circulating defrosting mode;
setting cycle times n and executing heating defrosting for n periods;
wherein the defrosting step in a single period comprises the following steps:
monitoring and acquiring a freezing chamber temperature T2;
when the refrigerating chamber temperature T2 is judged to be less than or equal to the minimum threshold temperature Tb, heating for defrosting is started;
and when the freezing chamber temperature T2 is judged to be greater than or equal to the maximum threshold temperature Tc, the heating defrosting is turned off.
2. The defrosting control method according to claim 1, wherein the step of "setting the number of cycles n and performing heating defrosting for n cycles" specifically includes:
setting preset temperature intervals, wherein each preset temperature interval is provided with a corresponding cycle number;
and acquiring the current ambient temperature T3 and matching the current ambient temperature T3 with the corresponding preset temperature interval to acquire the corresponding cycle number n.
3. The defrosting control method according to claim 1, wherein the step of "setting an opening temperature Ta and comparing the evaporator temperature T0 with the opening temperature Ta" further comprises:
and judging that the evaporator temperature T0 is less than or equal to the opening temperature Ta, and entering a single defrosting mode.
4. The defrosting control method according to claim 3, wherein the step of "determining that the evaporator temperature T0 is less than the opening temperature Ta, and entering the single defrosting mode" specifically comprises:
heating defrosting is started until the evaporator temperature T0 is greater than the starting temperature Ta.
5. The defrosting control method according to claim 1 wherein the difference between the maximum threshold temperature Tc and the minimum threshold temperature Tb is 5 degrees celsius.
6. A refrigerator comprising an evaporator for cooling and a heating module for defrosting, characterized in that it further comprises:
a control module, which controls the heating module to enter a self-checking mode and a circulating defrosting mode by using a control method according to any one of claims 1 to 5;
the first temperature sensor is arranged on the evaporator and used for detecting and feeding back the evaporator temperature T0 to the control module;
and the second temperature sensor is arranged in the freezing chamber and used for detecting and feeding back the freezing chamber temperature T2 to the control module.
7. The refrigerator of claim 6, wherein the first temperature sensor is spaced from the heating module by at least 10 cm.
8. The refrigerator according to claim 6, further comprising:
and the third temperature sensor is used for detecting and feeding back the ambient temperature T3 around the refrigerator to the control module.
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| CN201811625555.XA CN109764609B (en) | 2018-12-28 | 2018-12-28 | Refrigerator and defrosting control method thereof |
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| CN201811625555.XA CN109764609B (en) | 2018-12-28 | 2018-12-28 | Refrigerator and defrosting control method thereof |
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| CN109764609B true CN109764609B (en) | 2020-12-11 |
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| CN113758121B (en) * | 2020-06-05 | 2023-04-18 | 青岛海尔电冰箱有限公司 | Defrosting control method for refrigerator |
| CN112815615A (en) * | 2021-01-08 | 2021-05-18 | 珠海格力电器股份有限公司 | Refrigerator control method and device, storage medium and refrigerator |
| CN113251733A (en) * | 2021-06-02 | 2021-08-13 | 珠海格力电器股份有限公司 | Defrosting control method and device and refrigeration equipment |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0146327B1 (en) * | 1994-02-05 | 1998-08-17 | 김광호 | Defrosting method of a refrigerator |
| KR0182534B1 (en) * | 1994-11-17 | 1999-05-01 | 윤종용 | Defrosting device and its control method of a refrigerator |
| JPH10274455A (en) * | 1997-03-31 | 1998-10-13 | Sanyo Electric Co Ltd | Defrosting control device of cooler |
| CN1137364C (en) * | 1998-10-31 | 2004-02-04 | 株式会社大宇电子 | Defrost technology for refrigerator |
| JP2001263884A (en) * | 2000-03-22 | 2001-09-26 | Hoshizaki Electric Co Ltd | Method for controlling operation of storage shed |
| CN102297565B (en) * | 2011-09-13 | 2013-03-20 | 合肥美菱股份有限公司 | Automatic defrosting control method for frost free refrigerator |
| CN102997534B (en) * | 2011-09-13 | 2015-11-04 | 珠海格力电器股份有限公司 | Refrigerator and defrosting method thereof |
| CN102748917B (en) * | 2012-07-18 | 2014-04-30 | 合肥美菱股份有限公司 | Defrosting control method for inverter refrigerator |
| CN103591751B (en) * | 2013-10-30 | 2016-02-24 | 西安交通大学 | A kind of defrost system of wind cooling refrigerator and defrosting control method thereof |
| CN105890269A (en) * | 2016-04-15 | 2016-08-24 | 合肥华凌股份有限公司 | Circulating defrosting system, refrigerator and defrosting method |
| CN106091566B (en) * | 2016-06-17 | 2019-04-09 | 青岛海尔股份有限公司 | A kind of control method for wind cooling refrigerator |
| CN107726712B (en) * | 2016-08-12 | 2021-06-08 | 博西华电器（江苏）有限公司 | Refrigerator control method and refrigerator applying same |
| CN108759256A (en) * | 2018-06-28 | 2018-11-06 | 海信（山东）冰箱有限公司 | A kind of defrosting method and refrigerator of refrigerator |
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