CN113915880A - Refrigerator and defrosting control method thereof - Google Patents
Refrigerator and defrosting control method thereof Download PDFInfo
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- CN113915880A CN113915880A CN202110381397.3A CN202110381397A CN113915880A CN 113915880 A CN113915880 A CN 113915880A CN 202110381397 A CN202110381397 A CN 202110381397A CN 113915880 A CN113915880 A CN 113915880A
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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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
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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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
- F25D2600/02—Timing
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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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- 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)
- Defrosting Systems (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Abstract
The invention discloses a refrigerator and a defrosting control method thereof, wherein the refrigerator comprises a refrigerator body, an ice maker, a door body, a defrosting device and a controller, and the controller is configured as follows: when the freezing chamber is in a refrigerating state and the ice maker finishes making ice in the current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time, wherein the state parameters comprise the running time of the whole machine and the actual ice making time consumption of the ice maker; judging whether the actual ice making time consumption is larger than a preset ice making time threshold value or not, if so, compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, and if not, acquiring the predicted defrosting interval time as the current defrosting interval time; and judging whether the running time of the whole machine reaches the current defrosting interval time, and if so, controlling the defrosting device to execute defrosting operation. By adopting the embodiment of the invention, the defrosting interval time can be adjusted according to the ice making condition of the freezing chamber, so that the accuracy of defrosting control and the refrigerating effect of the refrigerator are improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a defrosting control method thereof.
Background
Because the refrigerator is at the refrigeration in-process, the incasement moisture can condense into the frost layer on the evaporimeter surface, hinders the heat exchange on evaporimeter surface to influence the refrigeration effect, consequently, for the refrigeration effect of better assurance refrigerator, the refrigerator on the market generally disposes the defrosting function.
At present, for the refrigerator with an ice maker in a freezing chamber, a timing defrosting method is mostly adopted to solve the defrosting problem, but because the use habit of a user and the environment difference of various regions are large, if the user picks up a large amount of ice at one time, the cold quantity in the freezing chamber will be lost in a large amount, at the moment, a large amount of water in a water storage box of the refrigerator will be injected into the freezing chamber to make ice, so that the temperature in the freezing chamber further rises, and under the condition that the temperature in the freezing chamber has risen, if defrosting is still controlled according to the original defrosting interval time, the temperature in the freezing chamber after defrosting can be easily caused to be overhigh, the refrigerating effect is influenced, and because the power consumption during defrosting is far greater than that during normal refrigeration, unnecessary energy consumption can be consumed.
Disclosure of Invention
The embodiment of the invention provides a refrigerator and a defrosting control method thereof, which can adjust defrosting interval time according to the ice making condition of a freezing chamber, thereby improving the accuracy of defrosting control of the refrigerator, improving the refrigerating effect of the refrigerator and reducing unnecessary energy consumption.
A refrigerator provided in a first embodiment of the present invention includes:
the refrigerator comprises a refrigerator body, a refrigerating chamber and a refrigerating chamber, wherein the refrigerator body is internally provided with the refrigerating chamber;
the ice maker is arranged in the freezing chamber;
the door body is arranged at the opening of the freezing chamber;
a defrosting device for defrosting the freezing chamber when a defrosting operation is performed;
a controller configured to:
when the freezing chamber is in a refrigerating state and the ice maker finishes making ice in the current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time; the state parameters comprise the whole machine running time and the actual ice making time of the ice maker;
judging whether the actual ice making time consumption is larger than a preset ice making time threshold value or not, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time;
and judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling the defrosting device to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met.
In the refrigerator provided in the first embodiment of the present invention, the use state of the user is determined by obtaining the state parameters of the refrigerator, and the accuracy of defrosting control is improved by reasonably adjusting the defrosting interval time of the refrigerator under the condition that the user picks up a large amount of ice at one time and the cold quantity in the freezing chamber is greatly dissipated, so as to effectively improve the refrigeration effect of the refrigerator and reduce unnecessary energy consumption.
In a second embodiment of the present invention, the predicted defrosting interval time is equal to a sum of a preset fixed defrosting period and a product of a first preset defrosting time multiple and the actual ice making consumed time.
In a third embodiment of the present invention, there is provided the refrigerator, wherein the first preset defrosting time multiple is 0.5.
In the refrigerator according to the fourth embodiment of the present invention, the defrosting interval compensation value is equal to a difference value between an actual ice making time of the ice maker and an expected ice making time of the ice maker multiplied by a second preset defrosting time multiple.
In a refrigerator according to a fifth embodiment of the present invention, the preset second defrosting time multiple is 0.2.
A defrosting control method of a refrigerator provided in a sixth embodiment of the present invention includes:
when a freezing chamber of a refrigerator is in a refrigerating state and an ice maker arranged in the freezing chamber finishes making ice in a current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time; the state parameters comprise the whole machine running time and the actual ice making time of the ice maker;
judging whether the actual ice making time consumption is larger than a preset ice making time threshold value or not, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time;
and judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling a defrosting device of the refrigerator to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met.
In the defrosting control method for the refrigerator provided in the sixth embodiment of the present invention, the using state of the user is determined by obtaining the state parameters of the refrigerator, and the accuracy of defrosting control is improved by reasonably adjusting the defrosting interval time of the refrigerator under the condition that the user picks up a large amount of ice at one time and the cooling capacity in the freezing chamber is greatly dissipated, so as to effectively improve the refrigerating effect of the refrigerator and reduce unnecessary energy consumption.
A seventh embodiment of the present invention provides a defrosting control method for a refrigerator, wherein the predicted defrosting interval time is equal to a sum of a preset fixed defrosting period and a product of a first preset defrosting time multiple and the actual ice making time.
In a defrosting control method of a refrigerator according to an eighth embodiment of the present invention, the first preset defrosting time multiple is 0.5.
In a defrosting control method of a refrigerator according to a ninth embodiment of the present invention, the defrosting interval compensation value is equal to a difference between an actual ice making time of the ice maker and an expected ice making time of the ice maker multiplied by a second preset defrosting time multiple.
In the defrosting control method of a refrigerator provided in the tenth embodiment of the present invention, the preset second defrosting time multiple is 0.2.
Compared with the prior art, the embodiment of the invention provides a refrigerator and a defrosting control method thereof, which are characterized in that when a freezing chamber of the refrigerator is in a refrigerating state and an ice maker arranged in the freezing chamber finishes making ice in a current refrigerating cycle, state parameters of the refrigerator in the current refrigerating cycle are obtained in real time, wherein the state parameters comprise the running time of the whole refrigerator and the actual ice making time consumption of the ice maker; judging whether the actual ice making time consumption is larger than a preset ice making time threshold value, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time; and then judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling a defrosting device of the refrigerator to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met. Because the higher the temperature in the freezing chamber is, the longer the actual ice making time of the ice maker is, the refrigerator and the defrosting control method thereof provided by the embodiment of the invention can control the refrigerator to delay defrosting when the actual ice making time is longer, thereby improving the accuracy of defrosting control of the refrigerator, effectively solving the problem that the temperature in the frosted freezing chamber is too high due to the fact that a user controls defrosting according to the original defrosting time interval after a large amount of ice is taken at one time, improving the refrigerating effect of the refrigerator, improving the use experience of the user, and reducing unnecessary energy consumption.
Drawings
Fig. 1 is a flowchart illustrating an operation of a controller in a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a defrosting control method for a refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of another defrosting control method for a refrigerator according to an embodiment of 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 some embodiments 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.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, a flowchart of an operation of a controller in a refrigerator according to an embodiment of the present invention is shown.
The refrigerator provided in the embodiment of the present invention includes:
the refrigerator comprises a refrigerator body, a refrigerating chamber and a refrigerating chamber, wherein the refrigerator body is internally provided with the refrigerating chamber;
the ice maker is arranged in the freezing chamber;
the door body is arranged at the opening of the freezing chamber;
a defrosting device for defrosting the freezing chamber when a defrosting operation is performed; and the number of the first and second groups,
a controller configured to:
s11, when the freezing chamber is in a refrigerating state and the ice maker finishes making ice in the current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time; the state parameters comprise the whole machine running time and the actual ice making time of the ice maker;
s12, judging whether the actual ice making consumed time is larger than a preset ice making time threshold value, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time;
and S13, judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling the defrosting device to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until a preset defrosting stop condition is met.
It should be noted that, if the freezing chamber is in a refrigeration state, it is indicated that the freezing chamber enters an ice making cycle, where the current ice making cycle refers to a time period from the end of last defrosting to the start of next defrosting, the whole machine operation time of the refrigerator in the current refrigeration cycle refers to an accumulated operation time of the refrigerator between the end of last defrosting and the current time, and the actual ice making consumed time of the ice maker in the current refrigeration cycle refers to the actual time consumed for completing an ice making process after the last defrosting of the ice maker.
For example, the predicted defrosting interval time and the defrosting interval compensation value may be set according to actual requirements or experimental results, and are not limited herein.
It can be understood that the actual ice making time consumption of the ice maker is closely related to the temperature in the freezing chamber, if the temperature in the freezing chamber is high, the actual ice making time consumption is long, and if the temperature in the freezing chamber is low, the actual ice making time consumption of the ice maker is short, so that the actual ice making time consumption of the ice maker can reflect the temperature condition in the freezing chamber.
For example, in the step S13, if it is determined that the operation time of the whole machine reaches the current defrosting interval time, the defrosting device may be controlled to perform the defrosting operation while the freezing chamber is controlled to stop cooling and the ice maker is controlled to enter the non-operating state, until a preset defrosting stop condition is met, the defrosting device is controlled to stop the defrosting operation and the freezing chamber is controlled to recover cooling and the ice maker is controlled to enter the operating state, so as to reduce energy consumption of the refrigerator.
It is understood that the controller may continuously perform the steps S11 to S13 when the freezing compartment is in a cooling state and the ice maker has finished making ice in a current cooling cycle, so as to realize cycle control of defrosting the refrigerator.
Compared with the prior art, the embodiment of the invention provides a refrigerator and a defrosting control method thereof, which are characterized in that when a freezing chamber of the refrigerator is in a refrigerating state and an ice maker arranged in the freezing chamber finishes making ice in a current refrigerating cycle, state parameters of the refrigerator in the current refrigerating cycle are obtained in real time, wherein the state parameters comprise the running time of the whole refrigerator and the actual ice making time consumption of the ice maker; judging whether the actual ice making time consumption is larger than a preset ice making time threshold value, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time; and then judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling a defrosting device of the refrigerator to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met. Because the higher the temperature in the freezing chamber is, the longer the actual ice making time of the ice maker is, the refrigerator and the defrosting control method thereof provided by the embodiment of the invention can control the refrigerator to delay defrosting when the actual ice making time is longer, thereby improving the accuracy of defrosting control of the refrigerator, effectively solving the problem that the temperature in the frosted freezing chamber is too high due to the fact that a user controls defrosting according to the original defrosting time interval after a large amount of ice is taken at one time, improving the refrigerating effect of the refrigerator, improving the use experience of the user, and reducing unnecessary energy consumption.
For example, the refrigerator is a single-system three-door refrigerator, and referring to a structural schematic diagram of the refrigerator shown in fig. 2, the refrigerator 1 is composed of a refrigerating chamber 11, a potherb chamber 12 and a freezing chamber 13, a temperature-changing drawer is arranged in the refrigerating chamber 11 and can realize independent temperature control, an ice maker 131 and a freezing air duct 132 are arranged in the freezing chamber 13, the ice maker 131 is installed at the upper left corner of the freezing chamber 13, and an upper tray is further arranged in the freezing chamber 13 of the refrigerator 1 and located at the lower part of the ice maker 131 and used for storing ice cubes made and turned down by the ice maker 131. Under the condition of once only getting ice in a large number at the user, will lead to the temperature in the freezer room to rise, because a large amount of water in refrigerator 1's the water storage box can pour into in the freezer 13, can lead to the temperature in the freezer 13 further to rise, if freezer 13 begins to change the frost this moment, the heat of heater can be passed through the wind gap and is transmitted in the freezer room, lead to food softening in the freezer 13, heater operating time is about 30min when changing the frost at every turn, later shut down and drip 10min, high frequency draws the temperature to the shut down point 90min again, totally about 130min, the user opens the door during this period, can obviously feel the temperature of freezer higher, bring the not good experience of refrigeration effect for the user.
It is worth explaining that the defrosting interval time of the refrigerator can be reasonably adjusted according to different using conditions of the refrigerator by a user, so that the accuracy of defrosting control of the refrigerator and the refrigerating effect of the refrigerator are improved, the using experience of the user is improved, and unnecessary energy consumption is reduced.
As an alternative embodiment, the predicted defrosting interval time is equal to a sum of a preset fixed defrosting period and a product of a first preset defrosting time multiple and the actual ice making time.
It is worth explaining that the actual use state of the freezing chamber is judged by obtaining the state parameters of the freezing chamber in the current refrigeration cycle, the defrosting interval time of the freezing chamber can be reasonably adjusted, and the refrigeration effect of the refrigerator is effectively improved.
Illustratively, the predicted interval between defrost time X1The expression of (a) is:
X1＝Y+b1tb
wherein Y is the preset fixed frost period, b1Is the first preset defrosting time multiple, tbIt takes time to actually make ice for the ice maker.
As one optional embodiment, the first preset defrosting time multiple is 0.5.
It should be noted that, when the actual ice making time is less than the preset ice making time threshold, it indicates that the actual ice making time of the refrigerator is short, the user does not perform a large amount of ice fetching operation, and the temperature in the freezer compartment is relatively low, so that normal defrosting can be performed, and therefore, the actual ice making time can be accumulated at a speed of 0.5 times.
As an alternative embodiment, the defrosting interval compensation value is equal to a value obtained by multiplying a difference value between an actual ice making time of the ice maker and an expected ice making time of the ice maker by a second preset defrosting time multiple.
Illustratively, the expression of the defrosting interval compensation value X2 is as follows:
X2＝(tb-t1)b2
wherein, t1Predicted ice making time of the ice maker, b2And the second preset defrosting time multiple is obtained.
As an optional embodiment, the preset second defrosting time multiple is 0.2.
It should be noted that when the actual ice making time consumption is greater than the preset ice making time threshold, it indicates that a user has performed a large amount of ice fetching operations in the current ice making cycle, resulting in a temperature rise in the freezer compartment, and if the actual ice making time consumption of the ice maker is continuously accumulated at a speed of 0.5 times, the actual defrosting interval of the freezer compartment is made smaller, resulting in frequent defrosting of the freezer compartment. Therefore, the actual ice making time of the ice maker is set to be accumulated at a speed of 0.3 times, so that the defrosting period is prolonged, and the defrosting frequency of the freezing chamber is reduced.
It should be noted that the numerical values of the first preset defrosting time multiple and the second preset defrosting time multiple may be adjusted according to actual situations, and in this embodiment, only an exemplary description is given, but it should be ensured that the numerical value of the second preset defrosting time multiple is smaller than the numerical value of the first preset defrosting time multiple.
It should be noted that, when the actual ice making time is longer than the preset ice making time threshold, it may be determined that a user has performed a large amount of ice fetching operations in this state, and in this case, if the time interval for defrosting the freezing chamber is still calculated according to the first preset defrosting time multiple, the actual defrosting interval of the refrigerator is very short, which results in frequent defrosting of the refrigerator. Therefore, in order to delay the defrosting period of the freezing chamber, the part of ice making accumulated time after exceeding the preset ice making time threshold is calculated at the defrosting speed which is less than the multiple of the first preset defrosting time, so that the actual defrosting interval is increased, the frequent defrosting times of the freezing chamber are reduced, and the refrigerating effect of the refrigerator is effectively improved.
For example, the preset ice making time threshold is a value obtained by multiplying the expected ice making time of the ice maker by a preset multiple.
Illustratively, the predetermined multiple is 1.5.
For example, the expression that whether the actual ice making time consumption is greater than a preset ice making time threshold and whether the overall machine operation time reaches the current defrosting interval time is judged as follows:
X≥X1+X2
transforming the above expression as follows:
X≥Y+b1tb+(tb-t1)b2
wherein, X is the running time of the whole machine.
When the actual ice making consumed time is less than a preset ice making time threshold, the expression for judging whether the whole machine operation time reaches the current defrosting interval time is specifically as follows:
X≥X1
transforming the above expression as follows:
X≥Y+b1tb
it should be noted that the preset defrosting stop condition may be set according to an actual requirement of the freezer compartment of the refrigerator or an experimental result, and is not limited herein.
It should be noted that, after the defrosting device is controlled to stop defrosting operation and the freezing chamber is controlled to resume refrigeration under the condition that the preset defrosting stop condition is met, or the running time of the whole machine does not reach the current defrosting interval time, the controller returns to the step of acquiring the state parameters of the freezing chamber in the current refrigeration cycle, so that the circulating defrosting operation of the freezing chamber of the refrigerator is realized, the defrosting interval time can be adjusted according to the ice making condition of the freezing chamber, the refrigeration effect of the refrigerator is improved, and the user experience is improved.
For the refrigerator provided in this embodiment, in conjunction with the flowchart shown in fig. 3, the work flow of the controller in the refrigerator is specifically as follows:
when a user turns on an ice making function switch, the refrigerator enters an ice making and defrosting control mode, in the mode, firstly, the previous defrosting accumulated time is cleared, and the state parameters of the freezing chamber in the current refrigeration cycle are obtained again; wherein, the state parameters comprise the whole machine running time X and the actual ice making time t for the ice maker to finish the ice makingb；
If the actual ice making time tbIs greater than the preset ice making time threshold value of 1.5t1And the running time of the whole machine reaches the current defrosting interval time, namely, the formula (X-t) is satisfiedb)+0.3(tb-t1)+0.5t1If the refrigerating chamber is larger than or equal to Y, controlling the refrigerating chamber to stop refrigerating and controlling the defrosting device to execute defrosting operation until a preset defrosting stop condition is met, controlling the defrosting device to stop defrosting operation and controlling the refrigerating chamber to recover refrigerating, and returning to the step of acquiring the state parameters of the refrigerator in the current ice making period;
if the actual ice making time tbLess than the preset ice making time threshold value of 1.5t1And the running time of the whole machine reaches the current defrosting interval time, namely, the formula (X-t) is satisfiedb)+0.5tbAnd if the refrigerating chamber is larger than or equal to Y, controlling the refrigerating chamber to stop refrigerating and controlling the defrosting device to execute defrosting operation until a preset defrosting stop condition is met, controlling the defrosting device to stop defrosting operation and controlling the refrigerating chamber to recover refrigerating, and returning to the step of acquiring the state parameters of the refrigerator in the current ice making period
And if the running time of the whole machine does not reach the current defrosting interval time, repeating the steps until defrosting is stopped when the ice making function switch is turned on by a user.
Fig. 4 is a schematic flow chart of a defrosting control method for a refrigerator according to an embodiment of the present invention.
The defrosting control method for the refrigerator provided by the embodiment comprises the following steps of S41-S43:
s41, when a freezing chamber of the refrigerator is in a refrigerating state and an ice maker arranged in the freezing chamber finishes making ice in the current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time; the state parameters comprise the whole machine running time and the actual ice making time of the ice maker;
s42, judging whether the actual ice making consumed time is larger than a preset ice making time threshold value, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time;
and S43, judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling a defrosting device of the refrigerator to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until a preset defrosting stop condition is met.
Compared with the prior art, the embodiment of the invention provides a refrigerator and a defrosting control method thereof, which are characterized in that when a freezing chamber of the refrigerator is in a refrigerating state and an ice maker arranged in the freezing chamber finishes making ice in a current refrigerating cycle, state parameters of the refrigerator in the current refrigerating cycle are obtained in real time, wherein the state parameters comprise the running time of the whole refrigerator and the actual ice making time consumption of the ice maker; judging whether the actual ice making time consumption is larger than a preset ice making time threshold value, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time; and then judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling a defrosting device of the refrigerator to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met. Because the higher the temperature in the freezing chamber is, the longer the actual ice making time of the ice maker is, the refrigerator and the defrosting control method thereof provided by the embodiment of the invention can control the refrigerator to delay defrosting when the actual ice making time is longer, thereby improving the accuracy of defrosting control of the refrigerator, effectively solving the problem that the temperature in the frosted freezing chamber is too high due to the fact that a user controls defrosting according to the original defrosting time interval after a large amount of ice is taken at one time, improving the refrigerating effect of the refrigerator, improving the use experience of the user, and reducing unnecessary energy consumption.
It is worth explaining that the using state of a user is judged by obtaining the parameters of the refrigerator, and the accuracy of defrosting control is improved by reasonably adjusting the defrosting interval time of the refrigerator under the condition that the user can take a large amount of ice once and the cold quantity in the freezing chamber is greatly dissipated, so that the refrigerating effect of the refrigerator is effectively improved, and unnecessary energy consumption is reduced.
As an alternative embodiment, the predicted defrosting interval time is equal to a sum of a preset fixed defrosting period and a product of a first preset defrosting time multiple and the actual ice making time.
As one optional embodiment, the first preset defrosting time multiple is 0.5.
As an alternative embodiment, the defrosting interval compensation value is equal to a value obtained by multiplying a difference value between an actual ice making time of the ice maker and an expected ice making time of the ice maker by a second preset defrosting time multiple.
As an optional embodiment, the preset second defrosting time multiple is 0.2.
It should be noted that, when the actual ice making time is longer than the preset ice making time threshold, it indicates that a user has performed a large amount of ice fetching operations in the current ice making period, resulting in a rise in the temperature in the freezer, and in order to reduce the defrosting frequency and prolong the defrosting period, the second preset defrosting time multiple needs to be smaller than the first preset defrosting time multiple, so as to improve the accuracy of defrosting control by reasonably adjusting the defrosting interval time of the refrigerator, thereby effectively improving the refrigeration effect of the refrigerator and reducing unnecessary energy consumption.
It should be noted that, the specific processes and descriptions of the defrosting control method for the refrigerator provided in this embodiment may refer to the related embodiments of the refrigerator provided above, and are not described herein again.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A refrigerator, characterized by comprising:
the refrigerator comprises a refrigerator body, a refrigerating chamber and a refrigerating chamber, wherein the refrigerator body is internally provided with the refrigerating chamber;
the ice maker is arranged in the freezing chamber;
the door body is arranged at the opening of the freezing chamber;
a defrosting device for defrosting the freezing chamber when a defrosting operation is performed;
a controller configured to:
when the freezing chamber is in a refrigerating state and the ice maker finishes making ice in the current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time; the state parameters comprise the whole machine running time and the actual ice making time of the ice maker;
judging whether the actual ice making time consumption is larger than a preset ice making time threshold value or not, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time;
and judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling the defrosting device to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met.
2. The refrigerator of claim 1, wherein the predicted defrosting interval time is equal to a sum of a preset fixed defrosting period plus a product of a first preset defrosting time multiple and the actual ice making consumed time.
3. The refrigerator of claim 2, wherein the first preset defrosting time multiple is 0.5.
4. The refrigerator of claim 3, wherein the defrosting interval compensation value is equal to a difference between an actual ice making time of the ice maker and an expected ice making time of the ice maker multiplied by a second preset defrosting time multiple.
5. The refrigerator of claim 4, wherein the preset second defrosting time multiple is 0.2.
6. A defrosting control method of a refrigerator is characterized by comprising the following steps:
when a freezing chamber of a refrigerator is in a refrigerating state and an ice maker arranged in the freezing chamber finishes making ice in a current refrigerating cycle, acquiring state parameters of the refrigerator in the current refrigerating cycle in real time; the state parameters comprise the whole machine running time and the actual ice making time of the ice maker;
judging whether the actual ice making time consumption is larger than a preset ice making time threshold value or not, if so, acquiring a predicted defrosting interval time and a defrosting interval compensation value, and compensating the predicted defrosting interval time according to the defrosting interval compensation value to obtain the current defrosting interval time, otherwise, acquiring the predicted defrosting interval time as the current defrosting interval time;
and judging whether the running time of the whole machine reaches the current defrosting interval time, if so, controlling a defrosting device of the refrigerator to execute defrosting operation, and controlling the defrosting device to stop defrosting operation until preset defrosting stop conditions are met.
7. The defrosting control method of a refrigerator of claim 6 wherein the predicted defrosting interval time is equal to a sum of a preset fixed defrosting period plus a product of a first preset defrosting time multiple and the actual ice making time.
8. The defrosting control method of a refrigerator of claim 7 wherein the first preset defrosting time multiple is 0.5.
9. The defrosting control method of a refrigerator of claim 6 wherein the defrosting interval compensation value is equal to a difference between an actual ice making time of the ice maker and an expected ice making time of the ice maker multiplied by a second preset defrosting time multiple.
10. The defrosting control method of a refrigerator of claim 9 wherein the preset second defrosting time multiple is 0.2.
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| CN114485032A (en) * | 2022-01-14 | 2022-05-13 | 海信（山东）冰箱有限公司 | Refrigerator and control method thereof |
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| JP2004036974A (en) * | 2002-07-02 | 2004-02-05 | Toshiba Corp | Refrigerator |
| JP2017003239A (en) * | 2015-06-15 | 2017-01-05 | ホシザキ株式会社 | Ice-making machine |
| CN106766454A (en) * | 2017-01-17 | 2017-05-31 | 海信容声(广东)冰箱有限公司 | One kind deices control method, device and ice machine |
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Address after: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266100 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 399 Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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