CN110108080B - Anti-condensation structure of refrigerator turnover beam and anti-condensation control method - Google Patents
Anti-condensation structure of refrigerator turnover beam and anti-condensation control method Download PDFInfo
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- CN110108080B CN110108080B CN201910406569.0A CN201910406569A CN110108080B CN 110108080 B CN110108080 B CN 110108080B CN 201910406569 A CN201910406569 A CN 201910406569A CN 110108080 B CN110108080 B CN 110108080B
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- temperature sensor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses an anti-condensation structure for a turnover beam of a refrigerator, which comprises a refrigerator body, wherein a left chamber and a right chamber are arranged at the upper part of the refrigerator body, the turnover beam is arranged between the left chamber and the right chamber, a left door body is hinged on the refrigerator body at the left chamber, a right door body is hinged on the refrigerator body at the right chamber, an electric heating device is arranged in the turnover beam, a turnover beam temperature sensor for sensing the surface temperature of the turnover beam is embedded in the surface of the turnover beam, an outer temperature sensor is arranged on the outer wall of the refrigerator body, an electric control device and an inner temperature sensor are arranged in the refrigerator body, and the electric control device is connected with the electric heating device, the inner temperature sensor, the turnover beam temperature sensor and the. The invention also discloses an anti-condensation control method, which comprises the following steps of firstly, starting the steps; the second is an adjustment step; and thirdly, circularly executing the steps. The invention can ensure that the overturning beam does not have condensation phenomenon under most conditions, prevent energy waste and realize low energy consumption and condensation prevention.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a turning beam condensation prevention technology.
Background
The demand of the consumer market for the refrigerator is increasingly multifunctional, the refrigerator is also diversified in style, one of the refrigerator is that one compartment is provided with two doors which are opened from left to right, the turning beam is used between the two doors to prevent cold leakage, but condensation can be caused when the temperature of the turning beam is too low, at present, in order to prevent the condensation of the turning beam, the use scheme of the refrigerator is 1, the on-off of a heating component of the turning beam is determined through an empirical value, and therefore a large amount of test data is needed, and the energy consumption is higher; 2. by placing a temperature and humidity sensor, the turning beam heating part is controlled to be started and stopped, and the control precision is high, the energy consumption is low, but the cost is high. The two modes have certain defects, and a new solution is proposed in order to reduce the cost and control the energy consumption. 3. The electric heating device is started and stopped too frequently, so that the service life of the electric heating device is short and is not matched with the service life of the refrigerator in 12-15 years, and the maintenance cost is increased for users.
The inventor researches a technical scheme for keeping the overturning beam above the dew point temperature, and if the dew point temperature is calculated according to the ambient humidity, the condensation phenomenon cannot be avoided because the ambient humidity and the humidity in the refrigerator have a difference. If the dew point temperature is calculated based on the humidity in the refrigerator, condensation cannot be avoided because the humidity of the air in the refrigerator is greatly changed when the door is opened and closed.
Disclosure of Invention
The invention aims to provide a refrigerator turnover beam condensation prevention structure which can prevent condensation at the turnover beam with lower cost.
In order to achieve the purpose, the refrigerator turnover beam condensation preventing structure comprises a refrigerator body, wherein a left door body and a right door body are arranged at the upper part of the refrigerator body; a turnover beam for preventing cold leakage is fixed on the inner surface of the right side of the left door body or the inner surface of the left side of the right door body; the electric heating device is arranged in the turnover beam, the surface of the turnover beam is embedded with a turnover beam temperature sensor for sensing the surface temperature of the turnover beam, the outer wall of the box body is provided with an outer temperature sensor, the box body is internally provided with an electric control device and an inner temperature sensor, and the electric control device is connected with the electric heating device, the inner temperature sensor, the turnover beam temperature sensor and the outer temperature sensor.
The invention also discloses an anti-condensation control method of the anti-condensation structure of the refrigerator turning beam, wherein an electric control device collects temperature signals of the turning beam temperature sensor and the outer temperature sensor, the temperature of the turning beam detected by the turning beam temperature sensor is TL, the temperature in the refrigerator detected by the inner temperature sensor is TN, the ambient temperature detected by the outer temperature sensor is TH, and TL, TN and TH are real numbers; taking 1 minute as the on-off period of the electric heating device, and storing an on-time parameter LK of the electric heating device within 1 minute and an off-time parameter LG of the electric heating device within 1 minute in the electric control device;
the first step is a start step; the electric control device judges whether TN is less than or equal to 15 ℃; if TN is more than 15 ℃, closing the electric heating device, delaying for 10 seconds, and then executing the first step again;
if TN is less than or equal to 15 ℃, turning on the electric heating device, enabling LK = LG =30 seconds, and after 5 minutes of operation, performing a second step;
the second step is an adjustment step; the electric control device judges the value of TL-TH;
if TL-TH is more than 1 ℃, operating according to the method of the first substep;
if TL-TH is more than or equal to 0 ℃ and less than or equal to 1 ℃, operating according to the method of the second substep;
if TL-TH is less than 0 ℃, operating according to the method of the third substep;
the first substep is: the electric control device firstly judges whether LG is equal to 60 seconds, if yes, the values of LK and LG are kept unchanged, and the third step is carried out after the electric control device operates for two minutes; if not, enabling LK to be reduced for 2 seconds, enabling LG to be increased for 2 seconds, operating for two minutes, and then turning to a third step;
the second substep is: the electric control device keeps the values of LK and LG unchanged, and the third step is carried out after the electric control device operates for two minutes;
the third substep is: the electric control device firstly judges whether LK is equal to 60 seconds, if so, the values of LK and LG are kept unchanged, and the third step is carried out after the electric control device operates for two minutes; if not, increasing LK by 2 seconds and reducing LG by 2 seconds, and then turning to the third step after running for two minutes;
the third step is a loop execution step: the electric control device judges whether TN is less than or equal to 15 ℃; if yes, re-executing the first step; if not, the second step is re-executed.
The invention has the following advantages:
the refrigerator turnover beam anti-condensation structure is simple in structure and low in cost, and can realize low-power-consumption anti-condensation by matching with an anti-condensation control method.
When the temperature in the refrigerator is higher than 15 ℃, the problem of condensation of the turnover beam is basically not considered, and the electric heating device is turned off, so that the situation that the electric heating device is started to cause the increase of energy consumption can be avoided.
The invention takes 1 minute as the start-stop period of the electric heating device, the sum of the start-up time and the close time in one period is 1 minute, thereby not only avoiding shortening the service life of the electric heating device caused by frequent start-up and close, thereby matching the service life of the electric heating device with the whole service life of the refrigerator, but also avoiding overlong continuous start-up time (which may cause overhigh temperature of the turnover beam to waste energy) or overlong continuous close time (which may cause overlow temperature of the turnover beam to cause condensation).
When the temperature of the turnover beam is at least 1 ℃ higher than the ambient temperature, the condensation phenomenon cannot occur at the turnover beam, so that the closing time of the electric heating device in one on-off period is prolonged, the opening time is shortened, and the energy consumption is reduced.
In the second step, the operation of judging the TL-TH value is executed every two minutes, if the temperature of the turnover beam is continuously higher than the ambient temperature by at least 1 ℃, the closing time of the electric heating device in a start-stop period is longer and longer (2 seconds for one time), and the electric heating device is not started in the start-stop period; the mode of gradually adjusting the start-stop ratio can not only gradually reduce energy consumption, but also prevent the phenomenon of condensation caused by the over-quick temperature drop at the turnover beam, ensure that the temperature of the turnover beam is higher than the ambient temperature and stop the phenomenon of condensation.
Similarly, when the temperature of the turnover beam is lower than the ambient temperature, the opening time of the electric heating device in one on-off period is longer and longer, so that the phenomenon that the turnover beam is too low in temperature and condensed is avoided. The mode of gradually adjusting the start-stop ratio can not only gradually increase the temperature, avoid the temperature of the turnover beam being continuously lower than the ambient temperature, but also avoid energy waste caused by too fast temperature increase.
After the overturning device runs for a long time, the overturning device can automatically explore a proper start-stop ratio, and control the temperature of the overturning beam higher than the ambient temperature to be between 0 and 1 ℃, so that the temperature difference interval can not only ensure that the overturning beam does not have a condensation phenomenon, but also prevent energy waste caused by overhigh temperature of the overturning beam.
Drawings
FIG. 1 is a schematic view of an anti-condensation structure for a turnover beam of a refrigerator of the present invention;
FIG. 2 is a flow chart of an anti-condensation control method of the present invention.
Detailed Description
As shown in fig. 1, the anti-condensation structure of the turnover beam of the refrigerator comprises a refrigerator body 1, wherein a left door body 3 and a right door body 4 are arranged at the upper part of the refrigerator body 1, the left side edge of the left door body 3 is hinged on the refrigerator body 1, and the right side edge of the right door body 4 is hinged on the refrigerator body 1; a turnover beam 2 for preventing cold leakage is fixed at the inner surface of the right side of the left door body 3 or the inner surface of the left side of the right door body 4; be equipped with electric heater unit 5 in the upset roof beam 2, 2 surfaces of upset roof beams are inlayed and are equipped with upset roof beam temperature sensor 6 that is used for perception upset roof beam 2 surface temperature, and 1 outer wall of box (specifically roof one side) is equipped with outer temperature sensor 7, is equipped with electrically controlled device 8 and interior temperature sensor in the box 1, and electrically controlled device 8 connects electric heater unit 5, interior temperature sensor 9, upset roof beam temperature sensor 6 and outer temperature sensor 7. The electric control device 8 is an integrated circuit or a singlechip. The inner temperature sensor 9 and the overturning beam temperature sensor 6 are arranged at intervals.
As shown in fig. 2, the invention also discloses an anti-condensation control method of the anti-condensation structure of the refrigerator turning beam 2, wherein an electric control device 8 collects temperature signals of a turning beam temperature sensor 6 and an outer temperature sensor 7, the temperature of the turning beam detected by the turning beam temperature sensor 6 is TL, the temperature in the refrigerator detected by an inner temperature sensor 9 is TN, the ambient temperature detected by the outer temperature sensor 7 is TH, TL, TN and TH are real numbers; taking 1 minute as the on-off period of the electric heating device 5, and storing an on-time parameter LK of the electric heating device 5 within 1 minute and an off-time parameter LG of the electric heating device 5 within 1 minute in the electric control device 8;
the first step is a start step; the electric control device 8 judges whether TN is less than or equal to 15 ℃; if TN is more than 15 ℃, the electric heating device 5 is closed, and the first step is executed again after 10 seconds of delay;
if TN is less than or equal to 15 ℃, turning on the electric heating device 5, enabling LK = LG =30 seconds, and after 5 minutes of operation, performing a second step;
the second step is an adjustment step; the electric control device 8 judges the value of TL-TH;
if TL-TH is more than 1 ℃, operating according to the method of the first substep;
if TL-TH is more than or equal to 0 ℃ and less than or equal to 1 ℃, operating according to the method of the second substep;
if TL-TH is less than 0 ℃, operating according to the method of the third substep;
the first substep is: the electric control device 8 firstly judges whether LG is equal to 60 seconds, if yes, the values of LK and LG are kept unchanged, and the third step is carried out after the operation is carried out for two minutes; if not, enabling LK to be reduced for 2 seconds, enabling LG to be increased for 2 seconds, operating for two minutes, and then turning to a third step;
the second substep is: the electric control device 8 keeps the values of LK and LG unchanged, and the third step is carried out after the operation for two minutes;
the third substep is: the electric control device 8 firstly judges whether LK is equal to 60 seconds, if so, the values of LK and LG are kept unchanged, and the third step is carried out after the operation is carried out for two minutes; if not, increasing LK by 2 seconds and reducing LG by 2 seconds, and then turning to the third step after running for two minutes;
the third step is a loop execution step: the electric control device 8 judges whether TN is less than or equal to 15 ℃; if yes, re-executing the first step; if not, the second step is re-executed.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (1)
1. The anti-condensation control method of the refrigerator turnover beam anti-condensation structure comprises a refrigerator body, wherein a left door body and a right door body are arranged at the upper part of the refrigerator body; a turnover beam for preventing cold leakage is fixed on the inner surface of the right side of the left door body or the inner surface of the left side of the right door body; an electric heating device is arranged in the turnover beam, a turnover beam temperature sensor used for sensing the surface temperature of the turnover beam is embedded in the surface of the turnover beam, an outer temperature sensor is arranged on the outer wall of the box body, an electric control device and an inner temperature sensor are arranged in the box body, and the electric control device is connected with the electric heating device, the inner temperature sensor, the turnover beam temperature sensor and the outer temperature sensor;
the method is characterized in that:
the electric control device collects temperature signals of the turnover beam temperature sensor and the outer temperature sensor, the temperature of the turnover beam detected by the turnover beam temperature sensor is TL, the temperature in the refrigerator detected by the inner temperature sensor is TN, the ambient temperature detected by the outer temperature sensor is TH, and TL, TN and TH are real numbers; taking 1 minute as the on-off period of the electric heating device, and storing an on-time parameter LK of the electric heating device within 1 minute and an off-time parameter LG of the electric heating device within 1 minute in the electric control device;
the first step is a start step; the electric control device judges whether TN is less than or equal to 15 ℃; if TN is more than 15 ℃, closing the electric heating device, delaying for 10 seconds, and then executing the first step again;
if TN is less than or equal to 15 ℃, turning on the electric heating device, enabling LK = LG =30 seconds, and after 5 minutes of operation, performing a second step;
the second step is an adjustment step; the electric control device judges the value of TL-TH;
if TL-TH is more than 1 ℃, operating according to the method of the first substep;
if TL-TH is more than or equal to 0 ℃ and less than or equal to 1 ℃, operating according to the method of the second substep;
if TL-TH is less than 0 ℃, operating according to the method of the third substep;
the first substep is: the electric control device firstly judges whether LG is equal to 60 seconds, if yes, the values of LK and LG are kept unchanged, and the third step is carried out after the electric control device operates for two minutes; if not, enabling LK to be reduced for 2 seconds, enabling LG to be increased for 2 seconds, operating for two minutes, and then turning to a third step;
the second substep is: the electric control device keeps the values of LK and LG unchanged, and the third step is carried out after the electric control device operates for two minutes;
the third substep is: the electric control device firstly judges whether LK is equal to 60 seconds, if so, the values of LK and LG are kept unchanged, and the third step is carried out after the electric control device operates for two minutes; if not, increasing LK by 2 seconds and reducing LG by 2 seconds, and then turning to the third step after running for two minutes;
the third step is a loop execution step: the electric control device judges whether TN is less than or equal to 15 ℃; if yes, re-executing the first step; if not, the second step is re-executed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910406569.0A CN110108080B (en) | 2019-05-15 | 2019-05-15 | Anti-condensation structure of refrigerator turnover beam and anti-condensation control method |
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| CN201910406569.0A CN110108080B (en) | 2019-05-15 | 2019-05-15 | Anti-condensation structure of refrigerator turnover beam and anti-condensation control method |
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| CN110108080B true CN110108080B (en) | 2021-05-25 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411094B (en) * | 2019-08-30 | 2023-10-31 | 长虹美菱股份有限公司 | Anti-condensation refrigerator and control method thereof |
| CN112325556A (en) * | 2020-11-03 | 2021-02-05 | Tcl家用电器（合肥）有限公司 | Heating control device, refrigerator control method and refrigerator |
| US20220307756A1 (en) * | 2021-03-29 | 2022-09-29 | Midea Group Co., Ltd. | Refrigerator with dynamic multi-zone anti-sweat heating system |
| CN115468352B (en) * | 2022-09-13 | 2024-01-12 | 珠海格力电器股份有限公司 | Heating control method and device for refrigerator turnover beam and refrigerator equipment |
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| CN201478706U (en) * | 2009-06-23 | 2010-05-19 | 卢景华 | Switch cabinet anti-condensation controller |
| CN102937363A (en) * | 2012-10-30 | 2013-02-20 | 合肥美菱股份有限公司 | Condensation-proof heating control device of overturning beam of refrigerator and control method thereof |
| CN203534052U (en) * | 2013-11-12 | 2014-04-09 | 海信（山东）冰箱有限公司 | Refrigerator with anti-condensation heating devices |
| CN105222510A (en) * | 2015-09-30 | 2016-01-06 | 海信容声(广东)冰箱有限公司 | A kind of condensation prevention control method and refrigerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6189160B2 (en) * | 2013-09-26 | 2017-08-30 | 東芝ライフスタイル株式会社 | refrigerator |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478706U (en) * | 2009-06-23 | 2010-05-19 | 卢景华 | Switch cabinet anti-condensation controller |
| CN102937363A (en) * | 2012-10-30 | 2013-02-20 | 合肥美菱股份有限公司 | Condensation-proof heating control device of overturning beam of refrigerator and control method thereof |
| CN203534052U (en) * | 2013-11-12 | 2014-04-09 | 海信（山东）冰箱有限公司 | Refrigerator with anti-condensation heating devices |
| CN105222510A (en) * | 2015-09-30 | 2016-01-06 | 海信容声(广东)冰箱有限公司 | A kind of condensation prevention control method and refrigerator |
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