CN111322812A - Control method and control device for intelligently defrosting air-cooled refrigerator and refrigerator - Google Patents
Control method and control device for intelligently defrosting air-cooled refrigerator and refrigerator Download PDFInfo
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- CN111322812A CN111322812A CN201811542678.7A CN201811542678A CN111322812A CN 111322812 A CN111322812 A CN 111322812A CN 201811542678 A CN201811542678 A CN 201811542678A CN 111322812 A CN111322812 A CN 111322812A
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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
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
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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
- F25D21/06—Removing frost
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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
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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
- F25D2700/10—Sensors measuring the temperature of the evaporator
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a control method, a control device and a refrigerator for intelligently entering defrosting of an air-cooled refrigerator, wherein a main sensor is used for detecting the temperature of an air inlet of an evaporator, a defrosting sensor is used for detecting the temperature of the evaporator, when the temperature of the air inlet reaches a system set shutdown value for the first time, the average value of the difference value between the temperature of the air inlet and the temperature of the evaporator within N minutes before the evaporator finishes running is calculated and recorded as △ x, a defrosting threshold value △ x + T is set, after the evaporator runs again, the temperature of the air inlet and the temperature of the evaporator are compared in real time, and if the difference value between the temperature of the air inlet and the temperature of the evaporator is greater than △ x + T, the evaporator is defrosted.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a control method and a control device for an air-cooled refrigerator to intelligently enter defrosting and a refrigerator.
Background
In the existing air-cooled refrigerator, when an evaporator enters defrosting, the following two schemes are adopted:
the first method comprises the following steps: and an air speed measuring instrument is arranged on an air outlet of the evaporator, when the evaporator frosts, the air speed is reduced, and when the air speed is lower than a set air speed threshold value, the evaporator defrosts. In actual work, the wind speed measuring instrument is easily plugged by snowflakes generated by the evaporator or directly frozen on an air inlet of the wind speed measuring instrument; or due to the fact that the air outlet is blocked due to the placement of the articles in the box, the system is misjudged to enter defrosting. Furthermore, wind speed measuring instruments are generally expensive.
And the second method comprises the following steps: the camera is installed beside the evaporator, the frosting condition of the evaporator is judged by shooting a frosting condition contrast picture of the evaporator, and after frosting, white is increased to a certain degree and then enters into defrosting. In actual installation and use, the camera is easily covered or shielded by formed frost, so that the system judges mistakenly and the frost is dissolved.
Disclosure of Invention
In order to solve the technical problems, the invention provides a control method and a control device for an air-cooled refrigerator to intelligently enter defrosting, and the refrigerator.
The technical scheme includes that the method for controlling the air-cooled refrigerator to intelligently enter defrosting comprises the steps of S101, collecting the temperature of an air inlet of an evaporator by a main sensor, recording the temperature T1 collected by the main sensor, collecting the temperature of the evaporator by a defrosting sensor, recording the temperature T2 collected by the defrosting sensor, S103, finishing operation of the evaporator when T1 reaches a system set shutdown value for the first time, calculating an average value of a difference value between T1 and T2 within N minutes before the operation of the evaporator is finished, recording the average value as △ x, setting the average value as △ x + T, S104, running the evaporator again, recording the temperature T1 collected by the main sensor and the temperature T2 collected by the defrosting sensor, S105, comparing the difference value between T1 and T2 with a defrosting threshold value △ x + T, and defrosting the evaporator is conducted if the difference value between T1 and T2 is larger than △ x + T.
Further, a step S102 is included between S101 and S103, before T1 reaches the system set shutdown value, a preset entering defrosting threshold value △ T is set, the difference between T1 and T2 is compared with the preset entering defrosting threshold value △ T, and if the difference between T1 and T2 is greater than △ T, the evaporator is defrosted.
Further, step S107 is included after S102, and if t2 is greater than the defrosting exit threshold set by the system, the evaporator exits defrosting.
Further, step S106 is included after S104, and if T2 is greater than the system-set defrosting exit threshold, the evaporator exits defrosting.
Further, in S103, N and T are determined according to experimental data and user requirements.
Furthermore, the temperature collection position of the defrosting sensor is arranged at the outlet of the evaporator or on the fins of the evaporator or at the air outlet of the evaporator.
The invention also discloses a control device for the intelligent defrosting of the air cooling air box, which comprises a detection unit, a main sensor, a defrosting sensor, a calculation unit, a threshold value recording unit, a defrosting control unit and a defrosting control unit, wherein the detection unit is used for detecting the running state of an evaporator, the main sensor is arranged at an air inlet of the evaporator and is used for detecting the temperature of the air inlet of the evaporator, the calculation unit is used for calculating the average value △ x of the difference between the temperature T1 collected by the main sensor and the temperature T2 collected by the defrosting sensor in the N-minute time period before the evaporator finishes running when the temperature T1 collected by the main sensor reaches a system set shutdown value for the first time, and calculating the average value of the difference value entering defrosting △ x + T, the threshold value recording unit is used for recording the temperature T1 collected by the main sensor and the temperature T2 collected by the defrosting sensor after the evaporator runs again, the difference value between the temperature T2 collected by the main sensor and the temperature T59636 collected by the defrosting sensor after the evaporator finishes running, the temperature T1 reaches the system set shutdown value for the first time period, the difference value entering the defrosting control unit is used for comparing the difference value T3638 and the difference value entering defrosting control unit 3648, and the defrosting control unit is used for comparing the difference value of entering defrosting control unit.
Further, the recording unit is further used for recording the temperature T1 collected by the main sensor and the temperature T2 collected by the defrosting sensor before T1 reaches a system set shutdown value, the comparing unit is further used for comparing the difference value between T1 and T2 with a preset defrosting threshold entering △ T, and the control unit is further used for controlling the evaporator to defrost when the difference value between T1 and T2 is larger than △ T.
Further, the control unit is also used for controlling the evaporator to exit defrosting when T2 is larger than a system-set exiting defrosting threshold.
Further, the control unit is also used for controlling the evaporator to exit defrosting when t2 is larger than a system-set exiting defrosting threshold.
Further, the defrosting sensor is arranged at the outlet of the evaporator or on the fins of the evaporator or at the air outlet of the evaporator,
the invention also discloses an air-cooled refrigerator which comprises the control device for the air-cooled air box to intelligently enter defrosting.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a control method, a control device and a refrigerator for intelligently entering defrosting of an air-cooled refrigerator, wherein a main sensor is used for detecting the temperature of an air inlet of an evaporator, a defrosting sensor is used for detecting the temperature of the evaporator, when the temperature of the air inlet reaches a system set shutdown value for the first time, the average value of the difference value between the temperature of the air inlet and the temperature of the evaporator within N minutes before the evaporator finishes running is calculated and recorded as △ x, a defrosting threshold value △ x + T is set, after the evaporator runs again, the temperature of the air inlet and the temperature of the evaporator are compared in real time, and if the difference value between the temperature of the air inlet and the temperature of the evaporator is greater than △ x + T, the evaporator is defrosted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flowchart of a control method for intelligently defrosting an air-cooled refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a control device for intelligently defrosting an air-cooled refrigerator according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an air-cooled refrigerator according to an embodiment of the present invention.
The system comprises a main sensor 01, a defrosting sensor 02, a detection unit 03, a recording unit 04, a calculation unit 05, a comparison unit 06, a control unit 07, an evaporator 08, a fan 09 and a liner 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
Fig. 1 shows a flowchart of a control method for intelligently defrosting an air-cooled refrigerator according to an embodiment of the present invention, fig. 2 shows a schematic block diagram of a control device for intelligently defrosting an air-cooled refrigerator according to an embodiment of the present invention, and fig. 3 shows a schematic structural diagram of an air-cooled refrigerator according to an embodiment of the present invention.
Referring to fig. 1, the method for controlling the air-cooled refrigerator to intelligently enter defrosting, disclosed by the invention, comprises the following steps:
the method comprises the steps of S101, collecting the temperature of an air inlet of an evaporator 08 by a main sensor 01, recording the temperature T1 collected by the main sensor 01, collecting the temperature of the evaporator 08 by a defrosting sensor 02, recording the temperature T2 collected by the defrosting sensor 02, S103, finishing operation of the evaporator 08 when T1 reaches a system set shutdown value for the first time, calculating an average value of a difference value between T1 and T2 in an N-minute time period before the evaporator 08 finishes operation, recording the average value as △ x, setting a defrosting threshold value △ x + T, S104, running the evaporator 08 again, recording the temperature T1 collected by the main sensor 01 and the temperature T2 collected by the defrosting sensor 02, S105, comparing the difference value between T1 and T2 with the defrosting threshold value △ x + T, and defrosting the evaporator 08 if the difference value between T1 and T2 is larger than △ x + T, and defrosting the evaporator 08.
According to the control method for intelligently entering defrosting of the air-cooled refrigerator, when the air inlet temperature T1 reaches a system set shutdown value for the first time, the average value of the difference value between the air inlet temperature T1 and the evaporator temperature T2 in an N-minute time period before the evaporator 08 finishes running is calculated and recorded as △ x, the evaporator entering defrosting threshold value △ x + T is set, after the evaporator 08 runs again, the air inlet temperature T1 and the evaporator temperature T2 are compared in real time, and if the difference value between the air inlet temperature T1 and the evaporator temperature T2 is larger than △ x + T, the evaporator 08 is defrosted, △ x + T can offset the influence of the thickening of a frost layer on the evaporator 08 temperature and the air inlet temperature, each refrigerator can automatically calculate the defrosting threshold value suitable for entering the refrigerator per se according to the actual running condition of the refrigerator, intelligent entering defrosting is achieved, energy consumption is reasonable, and defrosting is timely.
△ x is calculated as the average of the difference between the inlet air temperature t1 and the evaporator temperature t 2N minutes before the evaporator 08 finishes operating when t1 reaches the system shutdown value for the first time because there is minimal frost formation on the evaporator 08 and there is minimal temperature difference between the inlet air temperature and the evaporator 08 temperature.
The X value is determined according to experimental data and user requirements, and the X value influences the defrosting frequency of the evaporator. If the evaporator 08 is required to defrost slightly more frequently, then X is set to be smaller; if frequent defrosting of the evaporator 08 is not required, X is set to be larger.
The N value is determined according to experimental data and user requirements, and the N value is used as a time interval for calculating the average value of the difference between the temperature of the air inlet and the temperature of the evaporator, and the size of the time interval can influence the stability and reliability of the average value of the difference. In this embodiment, the value N is 1, i.e. the average value of the difference between the inlet air temperature t1 and the evaporator temperature t2 in the 1 minute period before the evaporator 08 finishes operating is calculated.
Further, step S102 is included between S101 and S103, before temperature T1 of the air inlet does not reach the system set shutdown value, a preset entering defrosting threshold value △ T is set, a difference value between T1 and T2 is compared with the preset entering defrosting threshold value △ T, and if the difference value between T1 and T2 is greater than △ T, the evaporator 08 is defrosted, the preset defrosting threshold value △ T is determined according to the requirements of a user, before temperature T1 of the air inlet does not reach the system set shutdown value, the evaporator 08 may be frosted and needs to be defrosted.
Further, step S107 is included after S102, and if the evaporator 08 outlet temperature t2 is greater than the system-set defrosting exit threshold, the evaporator 08 exits defrosting.
Similarly, step S106 is also included after S104, and if the evaporator 08 outlet temperature T2 is greater than the system-set defrosting exit threshold, the evaporator 08 exits defrosting.
The temperature collecting position of the defrosting sensor 02 can be arranged at the outlet of the evaporator 08 or on the fins of the evaporator 08 or at the air outlet of the evaporator 08 according to the needs of a user. Preferably, the frost sensor 02 is disposed in an upper middle region of the evaporator 08, because the frost formation amount distribution of the evaporator 08 is large at the lower side and small at the upper side, and the lower side is faster and the upper side is slower. Thus, the defrosting sensor 02 can be ensured to reflect the frosting condition of the whole evaporator 08 more accurately.
In addition, the position of collecting the temperature 01 of the main sensor is not limited to the air inlet of the evaporator 08, and the main sensor 01 is arranged at other positions to realize intelligent entering defrosting through the intelligent entering defrosting control method of the embodiment, so that the intelligent entering defrosting also belongs to the protection scope of the invention.
The invention also discloses a control device for the intelligent defrosting of the air-cooled refrigerator, which is applied to the air-cooled refrigerator with reference to fig. 2 and 3, wherein the air-cooled refrigerator comprises an inner container 10 and an evaporator 08 arranged in the inner container 10. The control device includes a main sensor 01, a defrosting sensor 02, a detection unit 03, a recording unit 04, a calculation unit 05, a comparison unit 06, and a control unit 07.
Specifically, the device comprises a main sensor 01, a defrosting sensor 02, a detection unit 03, a calculation unit 05, a recording unit 04, a defrosting unit 59642 and a defrosting unit 3648, wherein the main sensor 01 is arranged at an air inlet of an evaporator 08 and used for detecting the temperature of the air inlet of the evaporator 08, the defrosting sensor 02 is arranged at an outlet of the evaporator 08 or on a fin of the evaporator 08 or at an air outlet of the evaporator 08 and used for detecting the temperature of the evaporator 08, the calculation unit 05 is used for calculating an average value △ x of a difference between a temperature T1 collected by the main sensor 01 and a temperature T △ 5 collected by the defrosting sensor 02 in a period of N minutes before the evaporator 08 finishes running when a temperature T1 collected by the main sensor 01 reaches a system setting shutdown value for the first time, and calculating a defrosting threshold △ x + T, the recording unit 04 is used for recording a temperature T1 collected by the main sensor 01 and a temperature T2 collected by the defrosting sensor 02 after the evaporator 08 finishes running again, the main sensor 01 and the temperature T1 reaches the system setting shutdown value, the temperature T59642 x and the average value T + T19 is used for comparing the temperature T38 collected by the main sensor with the defrosting unit 3648, and the primary defrosting unit 3619 is used for controlling the defrosting difference between the defrosting threshold T + T3619 and the defrosting threshold T + T19 when the difference between the defrosting threshold T + T19 and the defrosting threshold T3 x + T19.
When the evaporator 08 is normally refrigerated, the cold energy generated by the evaporator 08 is taken away by the air blown out by the fan, and after the evaporator 08 frosts, the normal cold energy cannot be exchanged due to the small heat conductivity of the frost layer, so that the temperature of the evaporator 08 can be gradually reduced, and the temperature of the air inlet can be gradually increased. If the difference between the air inlet temperature and the evaporator temperature is simply adopted to judge whether defrosting is carried out, along with the thickening of the frost layer of the evaporator, the temperature of the evaporator is gradually reduced, the temperature of the air inlet is gradually increased, the difference between the air inlet temperature and the evaporator temperature is gradually increased, the defrosting time point is inaccurate, and the defrosting entering frequency is increased. If the temperature of the air inlet or the temperature of the evaporator is simply adopted to judge whether defrosting is carried out, the defrosting time point is inaccurate due to the thickening of the frost layer, and the defrosting frequency is increased. When defrosting is not needed, the evaporator is defrosted, and unnecessary energy consumption is caused.
According to the control device for intelligently entering defrosting of the air-cooled refrigerator, when the air inlet temperature T1 reaches a system set shutdown value for the first time, the average value of the difference value between the air inlet temperature T1 and the evaporator temperature T2 in an N-minute time period before the evaporator 08 finishes running is calculated and recorded as △ x, the evaporator entering defrosting threshold value △ x + T is set, after the evaporator runs again, the air inlet temperature T1 and the evaporator temperature T2 are compared in real time, and if the difference value between the air inlet temperature T1 and the evaporator temperature T2 is greater than △ x + T, the evaporator 08 is defrosted, △ x + T can offset the influence of the thickening of a frost layer on the evaporator temperature and the air inlet temperature of the refrigerator, each unit can automatically calculate the defrosting threshold value suitable for the unit to enter into the refrigerator according to the actual running condition, intelligent defrosting is achieved, reasonable and timely defrosting can be achieved according to needs, energy consumption can be saved, and cost.
Further, the recording unit 04 is further used for recording a temperature T1 collected by the main sensor 01 and a temperature T2 collected by the defrosting sensor 02 before T1 reaches a system set shutdown value, the comparing unit 06 is further used for comparing a difference value between T1 and T2 with a preset defrosting threshold entering △ T, and the control unit 07 is further used for controlling the evaporator 08 to defrost when the difference value between T1 and T2 is larger than △ T.
Further, the control unit 07 is further configured to control the evaporator 08 to exit defrosting when T2 is greater than a system-set exiting defrosting threshold. The control unit 07 is further configured to control the evaporator 08 to exit defrosting when t2 is greater than a system-set defrosting exit threshold.
The invention also discloses an air-cooled refrigerator which comprises the control device for the air-cooled air box to intelligently enter defrosting.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A control method for intelligently defrosting an air-cooled refrigerator is characterized by comprising the following steps:
s101, a main sensor acquires the temperature of an air inlet of an evaporator and records the temperature t1 acquired by the main sensor; the defrosting sensor collects the temperature of the evaporator, and the temperature t2 collected by the defrosting sensor is recorded;
s103, when T1 reaches a system set shutdown value for the first time, the evaporator finishes running, the average value of the difference value between T1 and T2 in a time period of N minutes before the evaporator finishes running is calculated and recorded as △ x, and a defrosting threshold value △ x + T is set;
s104, operating the evaporator again, and recording the temperature T1 acquired by the main sensor and the temperature T2 acquired by the defrosting sensor;
and S105, comparing the difference value between T1 and T2 with a defrosting threshold entering △ x + T, and defrosting the evaporator if the difference value between T1 and T2 is larger than △ x + T.
2. The method for controlling the intelligent entering of the air-cooled refrigerator to defrost as claimed in claim 1, further comprising a step S102 between S101 and S103, before the time T1 reaches the system shutdown value, setting a preset entering defrost threshold value △ T, comparing the difference between T1 and T2 with the preset entering defrost threshold value △ T, and defrosting the evaporator if the difference between T1 and T2 is greater than △ T.
3. The method for controlling the intelligent defrosting entry of the air-cooled refrigerator according to claim 2, wherein after S102, the method further comprises step S107, and if t2 is greater than a defrosting exit threshold set by a system, the evaporator exits defrosting.
4. The method for controlling the intelligent defrosting entry of the air-cooled refrigerator according to claim 1, wherein after the step S104, the method further comprises a step S106, and if T2 is greater than a defrosting exit threshold set by a system, the evaporator exits defrosting.
5. The method for controlling the intelligent defrosting of the air-cooled refrigerator according to the claim 1, wherein in S103, N and T are determined according to experimental data and user requirements.
6. The control method for intelligently entering defrosting of the air-cooled refrigerator according to any one of claims 1 to 5, wherein the temperature collection position of the defrosting sensor is arranged at the outlet of the evaporator or on the fins of the evaporator or at the air outlet of the evaporator.
7. The utility model provides a controlling means that forced air cooling bellows intelligence got into defrosting which characterized in that includes:
the detection unit is used for detecting the running state of the evaporator;
the main sensor is arranged at the air inlet of the evaporator and used for detecting the temperature of the air inlet of the evaporator;
a defrosting sensor for detecting a temperature of the evaporator;
the calculating unit is used for calculating an average value △ x of a difference value between the temperature T1 collected by the main sensor and the temperature T2 collected by the defrosting sensor within an N-minute time period before the evaporator finishes running when the temperature T1 collected by the main sensor reaches a system set stop value for the first time, and calculating a defrosting threshold value △ x + T;
the recording unit is used for recording the temperature T1 acquired by the main sensor and the temperature T2 acquired by the defrosting sensor after the evaporator operates again, and is also used for recording the average value △ x of the difference between the temperature T1 acquired by the main sensor and the temperature T2 acquired by the defrosting sensor in a time period of N minutes before the evaporator finishes operating when the temperature T1 acquired by the main sensor reaches a system set shutdown value for the first time and entering a defrosting threshold value △ x + T;
the comparison unit is used for comparing the difference value between T1 and T2 with the defrosting entering threshold △ x + T;
and the control unit controls the evaporator to defrost when the difference value between T1 and T2 is larger than △ x + T.
8. The control device for intelligent entry defrosting of an air-cooling bellows according to claim 7,
the recording unit is also used for recording the temperature t1 collected by the main sensor and the temperature t2 collected by the defrosting sensor before t1 reaches a system set shutdown value;
the comparison unit is also used for comparing the difference value between T1 and T2 with a defrosting entering preset threshold △ T;
the control unit is also used for controlling the evaporator to defrost when the difference value between T1 and T2 is larger than △ T.
9. The control device for intelligent entry defrosting of an air-cooling bellows according to claim 7, wherein the control unit is further configured to control the evaporator to exit defrosting when T2 is greater than a system-set exiting defrosting threshold.
10. The control device for intelligent entry defrosting of an air-cooling bellows according to claim 7, wherein the control unit is further configured to control the evaporator to exit defrosting when t2 is greater than a system-set exiting defrosting threshold.
11. An air-cooling wind box intelligent entry defrosting control device according to any one of claims 7 to 10, wherein the defrosting sensor is arranged at the outlet of the evaporator or on the fins of the evaporator or at the air outlet of the evaporator.
12. An air-cooled refrigerator comprising an air-cooled bellows intelligent frost entering control device according to any one of claims 7 to 11.
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| CN201811542678.7A CN111322812A (en) | 2018-12-17 | 2018-12-17 | Control method and control device for intelligently defrosting air-cooled refrigerator and refrigerator |
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| CN201811542678.7A CN111322812A (en) | 2018-12-17 | 2018-12-17 | Control method and control device for intelligently defrosting air-cooled refrigerator and refrigerator |
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| CN112179040A (en) * | 2020-09-21 | 2021-01-05 | 珠海格力电器股份有限公司 | Defrosting control method and device for evaporator and refrigeration equipment |
| CN112460867A (en) * | 2020-11-20 | 2021-03-09 | 浙江正理生能科技有限公司 | Air source heat pump defrosting start-stop management system and method |
| CN112460906A (en) * | 2020-11-20 | 2021-03-09 | 浙江工业大学 | Efficient defrosting start-stop management method for refrigerating unit |
| CN112460868A (en) * | 2020-11-20 | 2021-03-09 | 浙江工业大学 | Air source heat pump multi-mode accurate defrosting start-stop management method and system |
| CN112842007A (en) * | 2021-01-14 | 2021-05-28 | 支付宝(杭州)信息技术有限公司 | Vending cabinet and control method thereof |
| CN114251896A (en) * | 2021-12-24 | 2022-03-29 | 海信（山东）冰箱有限公司 | Refrigerator and defrosting control method thereof |
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| CN112460906A (en) * | 2020-11-20 | 2021-03-09 | 浙江工业大学 | Efficient defrosting start-stop management method for refrigerating unit |
| CN112460868A (en) * | 2020-11-20 | 2021-03-09 | 浙江工业大学 | Air source heat pump multi-mode accurate defrosting start-stop management method and system |
| CN112460868B (en) * | 2020-11-20 | 2022-07-19 | 浙江工业大学 | Air source heat pump multi-mode accurate defrosting start-stop management method and system |
| CN112460867B (en) * | 2020-11-20 | 2022-08-05 | 浙江正理生能科技有限公司 | Air source heat pump defrosting start-stop management system and method |
| CN112842007A (en) * | 2021-01-14 | 2021-05-28 | 支付宝(杭州)信息技术有限公司 | Vending cabinet and control method thereof |
| CN114251896A (en) * | 2021-12-24 | 2022-03-29 | 海信（山东）冰箱有限公司 | Refrigerator and defrosting control method thereof |
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