CN114777406A - Control method for air door heater of air-cooled refrigerator - Google Patents
Control method for air door heater of air-cooled refrigerator Download PDFInfo
- Publication number
- CN114777406A CN114777406A CN202210399827.9A CN202210399827A CN114777406A CN 114777406 A CN114777406 A CN 114777406A CN 202210399827 A CN202210399827 A CN 202210399827A CN 114777406 A CN114777406 A CN 114777406A
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- Prior art keywords
- air door
- controller
- heater
- time
- delta
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Classifications
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/005—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces in cold rooms
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
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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
- F25D21/08—Removing frost by electric heating
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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
- F25D23/00—General constructional features
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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
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
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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 a control method of an air door heater of an air-cooled refrigerator. The method comprises the following steps: the controller judges the refrigerating state of the refrigerator chamber; the controller records the temperature data T1 ℃ collected by the current compartment temperature sensor; after the preset time ta, the controller reads temperature data T2 acquired by the room temperature sensor; the controller judges the delta T is T2-T1, controls the heater to be started to heat according to the judgment result, the timer counts time until the delta T reaches the requirement or reaches the time tb, and the controller controls the heater to stop working and the air door to reset. According to the invention, the working state of the air door is judged by calculating the temperature difference of the compartment to start the air door heater, so that the problem of abnormal working of the air door caused by icing of the air door can be effectively solved, the heater does not need to heat regularly, and the energy consumption is reduced; the energy consumption is saved, the problem of air door abnormity is solved in time, and the user experience is improved.
Description
Technical Field
The invention belongs to the technical field of refrigerator control, and particularly relates to a control method of an air door heater of an air-cooled refrigerator.
Background
The air-cooled refrigerator utilizes the switch of the damper baffle to guide the cold air of the evaporator into different compartments, thereby controlling the refrigeration of the different compartments. However, the refrigerator has water vapor, and when excessive water vapor is condensed on the damper, the damper cannot be normally opened or closed. This requires opening the damper heater to evaporate ice that condenses on the damper surface, and the damper can operate properly.
A typical damper heater control method is to open the damper for a period of time while it is closed and defrosting, which may open the damper without ice, resulting in a loss of energy consumption. Or when the air door is abnormal, the air door cannot be opened in time, so that the air door cannot be restored in time after working abnormally. Therefore, a control method is needed, which can judge whether the damper works in real time and timely open the heater to remove the fault when the damper is in an abnormal state.
Disclosure of Invention
The invention aims to provide a control method of an air door heater of an air-cooled refrigerator, which is characterized in that the air door heater is started by calculating the temperature difference of a compartment to judge the working state of an air door, so that the problem of abnormal working of the air door caused by icing of the air door can be effectively solved, the heater does not need to heat regularly, and the energy consumption is reduced; the energy consumption is saved, the problem of air door abnormity is solved in time, and the user experience is improved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a control method of an air door heater of an air-cooled refrigerator, which comprises the following steps:
stp1 and the controller judge the refrigeration state of the refrigerator compartment;
stp2, when the compartment is in a refrigerating state and no refrigerating requirement exists, the control step comprises the following substeps:
s01, the controller records the temperature data T1 ℃ collected by the current compartment temperature sensor;
s02, after the refrigerator passes a preset time ta, reading temperature data T2 ℃ collected by the room temperature sensor by the controller;
s03, the controller calculates the difference value delta T between the temperature data T1 and T2, namely T2-T1, if the delta T is less than or equal to Ta ℃, the controller controls the heater to be started to heat, the controller starts timing, controls the air door to reset once every te time, and controls the heater to stop working and the air door to reset until the delta T is greater than Tb ℃ or reaches the time Tb;
stp3, when the compartment is in a non-refrigeration state and has refrigeration demand, the control step comprises the following substeps:
s11, the controller records the temperature data T1 ℃ collected by the current compartment temperature sensor;
s12, after the refrigerator passes a preset time tc, the controller reads temperature data T2 ℃ collected by the compartment temperature sensor;
s13, the controller calculates the difference value delta T between the temperature data T1 and T2 to be T2-T1, if the delta T is larger than or equal to Tc ℃, the controller controls the heater to be started to heat, the controller starts timing, the controller controls the air door to reset, controls the air door to reset once every te time, and controls the heater to stop working and the air door to reset until the delta T is smaller than Td ℃ or reaches the time tb.
Preferably, the temperature data Ta, Tb, Tc and Td in the steps Stp2 and Stp3 are preset by the controller.
The invention has the following beneficial effects:
according to the invention, the working state of the air door is judged by calculating the compartment temperature difference to start the air door heater, so that the problem of abnormal working of the air door caused by icing of the air door can be effectively solved, and the heater does not need to heat regularly, so that the energy consumption is reduced; the energy consumption is saved, the abnormal problem of the air door is solved in time, and the user experience is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of a method for controlling a heater of a damper of an air-cooled refrigerator according to the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the 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.
The first embodiment is as follows:
referring to fig. 1, the present invention relates to a method for controlling a heater of a damper of an air-cooled refrigerator, comprising the following steps:
stp1 and the controller judge the refrigeration state of the refrigerator compartment;
stp2, when the compartment is in a cooling state and there is no cooling demand, the control step comprises the following substeps:
s01, recording the temperature data T1 ℃ collected by the current compartment temperature sensor by the controller;
s02, after the refrigerator passes a preset time ta, reading temperature data T2 ℃ collected by the room temperature sensor by the controller;
s03, the controller calculates the difference value delta T between the temperature data T1 and T2, namely T2-T1, if the delta T is less than or equal to Ta ℃, the controller controls the heater to be started to heat, the controller starts to time, the controller controls the air door to reset, and controls the air door to reset once every te time until the delta T is greater than Tb ℃ or reaches the time Tb, and the controller controls the heater to stop working and the air door to reset;
the temperature data Ta and Tb are preset by the controller.
Stp3, when the compartment is in a non-refrigeration state and has refrigeration demand, the control step comprises the following substeps:
s11, the controller records the temperature data T1 ℃ collected by the current compartment temperature sensor;
s12, after the refrigerator passes a preset time tc, the controller reads temperature data T2 ℃ collected by the compartment temperature sensor;
s13, the controller calculates the difference value delta T between the temperature data T1 and T2 to be T2-T1, if the delta T is larger than or equal to Tc ℃, the controller controls the heater to be started to heat, the controller starts timing, the controller controls the air door to reset, controls the air door to reset once every te time, and controls the heater to stop working and the air door to reset until the delta T is smaller than Td ℃ or reaches the time tb.
The temperature data Tc and Td are preset by the controller.
Example two:
a control method of an air door heater of an air-cooled refrigerator comprises the steps that the air door heater, an air door and a compartment temperature sensor are connected with a controller, and the controller is respectively connected with the heater, the air door and the compartment temperature sensor. The heater is a heating electric wire.
When the refrigerating chamber is in a refrigerating state, the compartment temperature is gradually reduced, when a stop point is reached and the refrigerating chamber has no starting request, the current compartment temperature T1 is recorded, the timer starts to time, under the normal condition, the air door of the refrigerating chamber is closed, the refrigerating chamber stops refrigerating, and the compartment temperature is gradually increased. If the air door can not be closed due to freezing and the like, the temperature of the refrigerating chamber can not be increased. After ta-30 min, Δ T-T2-T1 was calculated for the current compartment temperature T2. If delta T is less than or equal to Ta, the heater is started at 0.5 ℃, the air door is reset at the same time, and the reset is carried out once every te for 10 min. And stopping heating and resetting the air door until delta T is greater than Tb and is 0.5 ℃ or Tb reaches 100min, stopping heating and resetting the air door, wherein when the temperature reaches the requirement, the air door is opened to repair the fault, and when the Tb reaches 100min, the fault cannot be repaired by opening the air door heater, and the air door is not abnormally operated due to icing of the air door, thereby saving energy.
And when the refrigerating chamber is in an uncooled state, the temperature of the refrigerating chamber is gradually increased, when the starting point is reached, the refrigerating chamber has a starting request, the current temperature T1 of the refrigerating chamber is recorded, the timer starts to time, the air door of the refrigerating chamber is opened under normal conditions, the refrigerating chamber refrigerates, and the temperature of the refrigerating chamber is gradually reduced. If the air door can not be opened due to freezing and other reasons, the temperature of the refrigerating chamber can not be reduced. After tc 15min, Δ T2-T1 was calculated for the current compartment temperature T2. If the delta T is larger than or equal to Tc, the heater is started at 0 ℃, the air door is reset at the same time, and the heater is reset once every te for 10 min. And stopping heating and resetting the air door until the temperature delta T is less than Td and equal to-1 ℃ or Td reaches 80min, stopping heating and resetting the air door, wherein the temperature reaches the requirement to indicate that the opening fault of the air door is repaired, and the Td reaches 80min to indicate that the fault cannot be repaired by opening the air door heater, so that the air door is not abnormal in operation caused by icing of the air door, and the energy is saved.
It should be noted that, in the above system embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, those skilled in the art can understand that all or part of the steps in the method for implementing the embodiments described above can be implemented by using a program to instruct the relevant hardware, and the corresponding program can be stored in a computer readable storage medium, such as a ROM/RAM, a magnetic disk or an optical disk.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (2)
1. A control method for a heater of an air door of an air-cooled refrigerator is characterized by comprising the following steps:
stp1, controller judging the refrigeration state of refrigerator chamber;
stp2, when the compartment is in a refrigerating state and no refrigerating requirement exists, the control step comprises the following substeps:
s01, recording the temperature data T1 ℃ collected by the current compartment temperature sensor by the controller;
s02, after the refrigerator passes a preset time ta, reading temperature data T2 ℃ collected by the room temperature sensor by the controller;
s03, the controller calculates the difference value delta T between the temperature data T1 and T2, namely T2-T1, if the delta T is less than or equal to Ta ℃, the controller controls the heater to be started to heat, the controller starts to time, the controller controls the air door to reset, and controls the air door to reset once every te time until the delta T is greater than Tb ℃ or reaches the time Tb, and the controller controls the heater to stop working and the air door to reset;
stp3, when the compartment is in the non-refrigeration state and has refrigeration requirement, the control step comprises the following substeps:
s11, recording the temperature data T1 ℃ collected by the current compartment temperature sensor by the controller;
s12, after the refrigerator is in a preset time tc, reading temperature data T2 ℃ collected by a room temperature sensor by a controller;
s13, the controller calculates the difference value delta T between the temperature data T1 and T2 to be T2-T1, if the delta T is larger than or equal to Tc ℃, the controller controls the heater to be started to heat, the controller starts timing, the controller controls the air door to reset, controls the air door to reset once every te time, and controls the heater to stop working and the air door to reset until the delta T is smaller than Td ℃ or reaches the time tb.
2. The method as claimed in claim 1, wherein the temperature data Ta, Tb, Tc and Td of the steps Stp2 and Stp3 are preset by the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210399827.9A CN114777406A (en) | 2022-04-15 | 2022-04-15 | Control method for air door heater of air-cooled refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210399827.9A CN114777406A (en) | 2022-04-15 | 2022-04-15 | Control method for air door heater of air-cooled refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114777406A true CN114777406A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210399827.9A Pending CN114777406A (en) | 2022-04-15 | 2022-04-15 | Control method for air door heater of air-cooled refrigerator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008032322A (en) * | 2006-07-28 | 2008-02-14 | Toshiba Corp | Refrigerator-freezer |
| JP2009293808A (en) * | 2008-06-02 | 2009-12-17 | Toshiba Corp | Refrigerator |
| CN103983070A (en) * | 2014-05-06 | 2014-08-13 | 合肥美的电冰箱有限公司 | Control method for refrigerator air door, control device for refrigerator air door and air-cooled refrigerator |
| CN107388721A (en) * | 2017-06-30 | 2017-11-24 | Tcl家用电器（合肥）有限公司 | Fault repairing method, fault restoration device, refrigerator and the computer-readable recording medium of refrigerator air door |
| CN112665297A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and device for refrigerator air door, controller and refrigerator |
| CN112665298A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigerator air door fault detection method and device, controller and refrigerator |
-
2022
- 2022-04-15 CN CN202210399827.9A patent/CN114777406A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008032322A (en) * | 2006-07-28 | 2008-02-14 | Toshiba Corp | Refrigerator-freezer |
| JP2009293808A (en) * | 2008-06-02 | 2009-12-17 | Toshiba Corp | Refrigerator |
| CN103983070A (en) * | 2014-05-06 | 2014-08-13 | 合肥美的电冰箱有限公司 | Control method for refrigerator air door, control device for refrigerator air door and air-cooled refrigerator |
| CN107388721A (en) * | 2017-06-30 | 2017-11-24 | Tcl家用电器（合肥）有限公司 | Fault repairing method, fault restoration device, refrigerator and the computer-readable recording medium of refrigerator air door |
| CN112665297A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and device for refrigerator air door, controller and refrigerator |
| CN112665298A (en) * | 2020-12-07 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigerator air door fault detection method and device, controller and refrigerator |
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