CN108007050B - Defrosting control method of refrigerator, refrigerator and computer readable storage medium - Google Patents
Defrosting control method of refrigerator, refrigerator and computer readable storage medium Download PDFInfo
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- CN108007050B CN108007050B CN201711170019.0A CN201711170019A CN108007050B CN 108007050 B CN108007050 B CN 108007050B CN 201711170019 A CN201711170019 A CN 201711170019A CN 108007050 B CN108007050 B CN 108007050B
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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
- 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
- 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a defrosting control method of a refrigerator, which comprises the following steps: when the refrigerator is detected to enter a refrigeration mode, acquiring a first capacitance value of the current first capacitor; determining whether an acquired first difference value between the first capacitance value and a first preset capacitance value is larger than a first preset capacitance threshold value; and when the first difference value is larger than a first preset capacitance threshold value, controlling the refrigerator to exit a refrigeration mode, and defrosting the evaporator based on the first difference value. The invention also discloses a refrigerator and a computer readable storage medium. According to the invention, the refrigerator can be defrosted in time according to the capacitance value of the first capacitor, namely, the refrigerator is defrosted through a dynamic defrosting period, so that the condition that the refrigerator is defrosted incompletely or is defrosted under the condition of no frost caused by adopting a fixed defrosting period can be avoided, and the defrosting efficiency of the refrigerator is improved.
Description
Technical Field
The invention relates to the field of refrigerators, in particular to a defrosting control method of a refrigerator, the refrigerator and a computer readable storage medium.
Background
The refrigerator is a refrigerating device for keeping constant low temperature, and is a civil product for keeping food or other articles in a constant low-temperature cold state. The air cooling technology cools air passing through a built-in hidden cooler (such as an evaporator of a refrigerant circulating system), and forces cold air to flow in a circulating manner through a fan, so that the cold air is uniformly distributed in each compartment of the refrigerator, and the refrigeration is realized. When air in the refrigerator passes through the surface of the evaporator, moisture in the air is condensed on the surface of the evaporator, and because the temperature of the evaporator is too low, a frost layer is formed after a period of time, the heat transfer efficiency of the evaporator is reduced until the evaporator is completely blocked and loses efficacy, and the operation efficiency of the refrigerator is reduced, so that defrosting must be performed after the refrigerator operates for a period of time.
At present, a refrigerator is mainly used for defrosting according to a defrosting cycle with fixed ambient temperature, wherein if a door of the refrigerator is opened, the defrosting cycle is subjected to jumping processing according to the door opening time. However, under the conditions that the air humidity is large, the ambient temperature is low and the door is frequently opened, the humidity of the air can be quickly exchanged into the refrigerator box, so that the humidity in the refrigerator box is quickly increased, in the refrigeration process of the refrigerator after the door is closed, circulation is formed in the air in the refrigerator box under the action of the fan, because the temperature on the evaporator is very low, moisture in the air is condensed into frost on the evaporator, so that the evaporator is frosted more, if the defrosting period is fixed, the evaporator is blocked when frosting is carried out again due to incomplete defrosting easily caused, and the cold energy cannot normally circulate to enable the refrigerator to refrigerate. Under the condition that the air humidity is low and the ambient temperature is high, a fixed defrosting period is adopted, so that the refrigerator is defrosted under the condition of no frost, and the energy waste is caused.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a defrosting control method of a refrigerator, the refrigerator and a computer readable storage medium, and aims to solve the technical problem that the existing refrigerator is not completely defrosted or defrosted under the condition of no frost due to a fixed defrosting period.
In order to achieve the above object, the present invention provides a defrosting control method for a refrigerator, the refrigerator includes an evaporator and a controller, the evaporator is provided with capacitor plates arranged in pairs, the capacitor plates are electrically connected with the controller, so that the capacitor plates arranged in pairs form a first capacitor; the defrosting control method of the refrigerator comprises the following steps:
when the refrigerator is detected to enter a refrigeration mode, acquiring a first capacitance value of the current first capacitor;
determining whether an acquired first difference value between the first capacitance value and a first preset capacitance value is larger than a first preset capacitance threshold value;
and when the first difference value is larger than a first preset capacitance threshold value, controlling the refrigerator to exit a refrigeration mode, and defrosting the evaporator based on the first difference value.
In an embodiment, the step of defrosting the evaporator based on the first difference comprises:
acquiring defrosting parameters corresponding to the first difference;
and defrosting the evaporator based on the acquired defrosting parameters.
In an embodiment, the refrigerator is provided with a heating wire for heating the evaporator, the defrosting parameters include defrosting power and defrosting time, and the step of performing the defrosting operation on the evaporator based on the acquired defrosting parameters includes:
and controlling the heating wire to operate according to the defrosting power in the defrosting time.
In an embodiment, after the step of performing the defrosting operation on the evaporator based on the difference value, the defrosting control method of the refrigerator further includes:
when the defrosting operation is finished, acquiring a second capacitance value of the current first capacitor;
determining whether an obtained second difference value between the second capacitance value and the first preset capacitance value is larger than a first preset capacitance threshold value or not;
when the second difference is larger than the first preset capacitance threshold value, defrosting the evaporator based on the second difference.
In an embodiment, after the step of determining whether the obtained second difference between the second capacitance value and the first preset capacitance value is greater than the first preset capacitance threshold, the method for controlling defrosting of a refrigerator further includes:
and when the second difference value is smaller than or equal to the first preset capacitance threshold value, controlling the refrigerator to enter a refrigeration mode.
In an embodiment, the evaporator is further provided with a second capacitor formed by another pair of capacitor plates arranged in pairs, and the second capacitor and the first capacitor are respectively arranged in different areas on the evaporator; the step of controlling the refrigerator to exit the cooling mode when the first difference is greater than a first preset capacitance threshold, and performing a defrosting operation on the evaporator based on the first difference comprises:
when the first difference value is larger than a first preset capacitance threshold value, determining whether a third difference value between a third capacitance value of the second capacitor and a second preset capacitance value is larger than a second preset capacitance threshold value or not;
and when the third difference value is larger than a second preset capacitance threshold value, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the third difference value.
In an embodiment, the evaporator is further provided with a frost formation detection sensor, and the step of controlling the refrigerator to exit the cooling mode when the first difference is greater than a first preset capacitance threshold, and defrosting the evaporator based on the first difference further includes:
when the first difference value is larger than a first preset capacitance threshold value, determining whether the frost formation amount detected by the frost formation detection sensor is larger than a preset frost formation amount or not;
and when the frosting amount is larger than the preset frosting amount, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the frosting amount.
In one embodiment, the defrosting control method of the refrigerator further includes:
when the refrigerator is started, acquiring a shutdown time corresponding to the current starting operation, and calculating the shutdown duration of the refrigerator based on the current time and the shutdown time;
when the shutdown duration is longer than a preset duration, acquiring a fourth capacitance value of the current first capacitor;
and updating the first preset capacitance value based on the acquired fourth capacitance value.
In addition, in order to achieve the above object, the present invention further provides a refrigerator, which includes an evaporator and a controller, wherein the evaporator is provided with capacitor plates arranged in pairs, and the capacitor plates are electrically connected to the controller, so that the capacitor plates arranged in pairs form a first capacitor; the refrigerator further includes: the refrigerator defrosting control method comprises a memory, a processor and a refrigerator defrosting control program stored on the memory and capable of running on the processor, wherein when the refrigerator defrosting control program is executed by the processor, the steps of the refrigerator defrosting control method are realized.
In addition, to achieve the above object, the present invention also provides a computer readable storage medium having a defrosting control program of a refrigerator stored thereon, the defrosting control program of the refrigerator, when executed by a processor, implementing the steps of the defrosting control method of the refrigerator according to any one of the above aspects.
According to the invention, when the refrigerator is detected to enter the refrigeration mode, the first capacitance value of the current first capacitor is obtained, then whether the first difference value between the obtained first capacitance value and the first preset capacitance value is larger than a first preset capacitance threshold value or not is determined, then when the first difference value is larger than the first preset capacitance threshold value, the refrigerator is controlled to exit the refrigeration mode, and defrosting operation is carried out on the evaporator based on the first difference value, so that the refrigerator can be defrosted in time according to the capacitance value of the first capacitor, namely, defrosting operation is carried out on the refrigerator through a dynamic defrosting period, further the condition that defrosting is incomplete or carried out under the condition of no defrosting due to the adoption of the fixed defrosting period can be avoided, and the defrosting efficiency of the refrigerator is improved.
Drawings
FIG. 1 is a schematic diagram of a refrigerator with a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a defrosting control method for a refrigerator according to a first embodiment of the present invention;
fig. 3 is a detailed flowchart of the step of defrosting the evaporator based on the first difference in the second embodiment of the defrosting control method of the refrigerator according to the present invention;
FIG. 4 is a schematic flow chart illustrating a defrosting control method for a refrigerator according to a third embodiment of the present invention;
fig. 5 is a detailed flowchart of steps of controlling the refrigerator to exit the cooling mode and performing a defrosting operation on the evaporator based on the first difference when the first difference is greater than a first preset capacitance threshold according to a fourth embodiment of the defrosting control method for the refrigerator of the present invention;
fig. 6 is a detailed flowchart of steps of controlling the refrigerator to exit the cooling mode and performing a defrosting operation on the evaporator based on the first difference when the first difference is greater than the first preset capacitance threshold according to the fifth embodiment of the defrosting control method for the refrigerator of the present invention;
fig. 7 is a flowchart illustrating a defrosting control method for a refrigerator according to a sixth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a refrigerator in a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, and can also be a mobile terminal device with a display function, such as a smart phone, a tablet computer, an electronic book reader, an MP3(Moving Picture Experts Group Audio Layer III, dynamic video Experts compress standard Audio Layer 3) player, an MP4(Moving Picture Experts Group Audio Layer IV, dynamic video Experts compress standard Audio Layer 4) player, a portable computer, and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a defrosting control program of a refrigerator.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be used to call a defrosting control program of the refrigerator stored in the memory 1005.
In this embodiment, the refrigerator includes an evaporator and a controller, the evaporator is provided with capacitor plates arranged in pairs, and the capacitor plates are electrically connected to the controller, so that the capacitor plates arranged in pairs form a first capacitor; the refrigerator further includes: the refrigerator defrosting control method comprises a memory 1005, a processor 1001 and a refrigerator defrosting control program stored on the memory 1005 and capable of running on the processor 1001, wherein when the processor 1001 calls the refrigerator defrosting control program stored in the memory 1005, the following operations are performed:
when the refrigerator is detected to enter a refrigeration mode, acquiring a first capacitance value of the current first capacitor;
determining whether an acquired first difference value between the first capacitance value and a first preset capacitance value is larger than a first preset capacitance threshold value;
and when the first difference value is larger than a first preset capacitance threshold value, controlling the refrigerator to exit a refrigeration mode, and defrosting the evaporator based on the first difference value.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
acquiring defrosting parameters corresponding to the first difference;
and defrosting the evaporator based on the acquired defrosting parameters.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
and controlling the heating wire to operate according to the defrosting power in the defrosting time.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
when the defrosting operation is finished, acquiring a second capacitance value of the current first capacitor;
determining whether an obtained second difference value between the second capacitance value and the first preset capacitance value is larger than a first preset capacitance threshold value or not;
when the second difference is larger than the first preset capacitance threshold value, defrosting the evaporator based on the second difference.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
and when the second difference value is smaller than or equal to the first preset capacitance threshold value, controlling the refrigerator to enter a refrigeration mode.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
when the first difference value is larger than a first preset capacitance threshold value, determining whether a third difference value between a third capacitance value of the second capacitor and a second preset capacitance value is larger than a second preset capacitance threshold value or not;
and when the third difference value is larger than a second preset capacitance threshold value, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the third difference value.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
when the first difference value is larger than a first preset capacitance threshold value, determining whether the frost formation amount detected by the frost formation detection sensor is larger than a preset frost formation amount or not;
and when the frosting amount is larger than the preset frosting amount, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the frosting amount.
Further, the processor 1001 may call a defrosting control program of the refrigerator stored in the memory 1005, and also perform the following operations:
when the refrigerator is started, acquiring a shutdown time corresponding to the current starting operation, and calculating the shutdown duration of the refrigerator based on the current time and the shutdown time;
when the shutdown duration is longer than a preset duration, acquiring a fourth capacitance value of the current first capacitor;
and updating the first preset capacitance value based on the acquired fourth capacitance value.
The invention also provides a defrosting control method of the refrigerator, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the defrosting control method of the refrigerator.
The refrigerator comprises an evaporator and a controller, wherein capacitor plates arranged in pairs are arranged on the evaporator and electrically connected with the controller, so that the capacitor plates arranged in pairs form a first capacitor.
In this embodiment, the capacitor plates are conductive sheets, and two conductor sheets are disposed on the evaporator of the refrigerator compartment to serve as two capacitor plates of the capacitor, that is, positive and negative electrode plates of the first capacitor. When the evaporator frosts, the two capacitor plates can also frost, the dielectric constant of the first capacitor changes, and then the capacitance value of the first capacitor can be detected through the controller, so that the frosting thickness between the two capacitor plates can be determined according to the capacitance value, and the frosting thickness can really realize the frosting amount of the reactor.
It should be noted that a plurality of capacitor plates may be arranged in parallel in the evaporator to form a plurality of capacitors, but in this embodiment, only a single first capacitor may be provided in the evaporator, considering that the effect of providing a plurality of capacitors in the same region of the evaporator is substantially the same as that of providing a single capacitor.
The defrosting control method of the refrigerator comprises the following steps:
step S10, when the refrigerator is detected to enter a refrigeration mode, acquiring a first capacitance value of the current first capacitance;
in this embodiment, when there is the door closing action in the refrigerator, or the temperature in the refrigerator case exceeded the set temperature, thereby the refrigerator carries out the refrigeration operation and begins to refrigerate, this refrigerator gets into the mode of refrigerating promptly, in the refrigerator refrigeration process, when the air passes through the evaporator surface in the refrigerator, moisture in the air can condense on the evaporator surface, because the evaporator temperature is too low, form the frost layer after a period of time, if frosting more on the evaporator this moment, can make the frosting of evaporator more in the refrigerator refrigeration process, cause the evaporator stifled to die easily. Therefore, when the refrigerator is detected to enter the refrigeration mode, the first capacitance value of the current first capacitor is obtained, so that the controller of the refrigerator can judge whether defrosting operation needs to be carried out on the evaporator currently according to the first capacitance value.
Step S20, determining whether the obtained first difference between the first capacitance value and a first preset capacitance value is greater than a first preset capacitance threshold value;
the first preset capacitance value is a capacitance value of the first capacitor when the refrigerator is in a frostless state, and can also be a capacitance value of the first capacitor when the refrigerator leaves a factory; the first preset capacitance threshold is a difference value between a capacitance value of the first capacitor and a first preset capacitance value when the refrigerator is frosted to a certain degree and needs to be defrosted.
In this embodiment, when the first capacitance value of the current first capacitor is obtained, the controller calculates a first difference between the first capacitance value and a first preset capacitance value, and then determines whether the first difference is greater than the first preset capacitance value, so as to determine whether the refrigerator needs to be defrosted according to the determination result.
And step S30, when the first difference is larger than a first preset capacitance threshold value, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference.
In this embodiment, when this first difference is greater than first preset capacitance value, control the refrigerator withdraws from the refrigeration mode, stop the refrigeration operation promptly, simultaneously change the frost operation to the evaporimeter according to first difference, specifically, this refrigerator is equipped with the heater strip, this heater strip is used for heating the evaporimeter of this refrigerator, control the heater strip according to this first difference and carry out the heating operation to the evaporimeter, in order to realize the defrosting of evaporimeter, and then can in time change the frost to the refrigerator according to the capacitance value of first electric capacity, change the frost operation to the refrigerator through dynamic defrosting cycle promptly, and then can avoid appearing adopting the refrigerator that fixed defrosting cycle leads to and change the incomplete or condition of changing the frost at the condition of no frost, the efficiency of defrosting has been improved.
According to the defrosting control method for the refrigerator, when the refrigerator is detected to enter a refrigeration mode, a first capacitance value of the first capacitor is obtained currently, whether a first difference value between the obtained first capacitance value and a first preset capacitance value is larger than a first preset capacitance threshold value is determined, then when the first difference value is larger than the first preset capacitance threshold value, the refrigerator is controlled to exit the refrigeration mode, defrosting operation is performed on the evaporator based on the first difference value, then defrosting can be performed on the refrigerator in time according to the capacitance value of the first capacitor, namely defrosting operation is performed on the refrigerator through a dynamic defrosting period, and therefore the condition that defrosting of the refrigerator is incomplete or performed under the condition of no frost due to the fact that the fixed defrosting period is adopted can be avoided, and defrosting efficiency of the refrigerator is improved.
A second embodiment of a defrosting control method of a refrigerator of the present invention is proposed based on the first embodiment, and referring to fig. 3, in the present embodiment, step S30 includes:
step S31, acquiring defrosting parameters corresponding to the first difference;
in this embodiment, a defrosting parameter corresponding to the first difference may be pre-stored in a storage medium of the refrigerator or a storage medium in communication connection with the controller, specifically, a defrosting parameter may be set for each possible difference, and then the corresponding defrosting parameter may be directly obtained according to the first difference. Or calculating a difference range corresponding to the maximum value and the minimum value of a first capacitor corresponding to the defrosting operation required by the refrigerator, dividing the difference range to obtain a plurality of different difference intervals, setting and storing a corresponding defrosting parameter for each difference interval, determining the difference interval corresponding to the first difference when acquiring the defrosting parameter corresponding to the first difference, and acquiring the defrosting parameter corresponding to the difference interval, wherein the defrosting parameter corresponding to the difference interval is the defrosting parameter corresponding to the first difference.
And step S32, carrying out defrosting operation on the evaporator based on the acquired defrosting parameters.
In this embodiment, when the defrosting parameter is acquired, the evaporator is subjected to defrosting operation according to the defrosting parameter.
Specifically, the refrigerator is provided with a heating wire for heating the evaporator, the defrosting parameters include a defrosting power and a defrosting time, and the step S32 includes controlling the heating wire to operate according to the defrosting power within the defrosting time, so as to implement a defrosting operation on the evaporator.
In this embodiment, in order to achieve a good defrosting effect, a plurality of heating wires may be provided, each of the heating wires extending in a horizontal direction, and the plurality of heating wires may be provided at intervals in a height direction of the evaporator, so that each of the heating wires is configured to directly or indirectly heat the evaporator. It should be noted that, corresponding heating power and defrosting power may be set for each heating wire to improve defrosting efficiency of the evaporator, and heating of the heating wires is prevented to make a partial area of the evaporator in a frostless but heating state.
According to the defrosting control method for the refrigerator, the defrosting parameters corresponding to the first difference are obtained, then the evaporator is subjected to defrosting operation based on the obtained defrosting parameters, and then different defrosting operations can be adopted according to different first differences to perform defrosting operation on the evaporator, so that the condition that the refrigerator is not completely defrosted or defrosted under the condition of no frost is further avoided, and the defrosting efficiency of the refrigerator is improved.
Based on the first embodiment, a third embodiment of the defrosting control method of the refrigerator of the present invention is proposed, and referring to fig. 4, in the present embodiment, after step S30, the defrosting control method of the refrigerator further includes:
step S40, when the defrosting operation is finished, acquiring a second capacitance value of the current first capacitance;
in this embodiment, when the defrosting operation is completed, in order to ensure that the refrigerator is defrosted, the capacitance value of the first capacitor may be collected again, that is, the current second capacitance value of the first capacitor is obtained, so that the controller can determine whether the current evaporator is defrosted completely according to the second capacitance value.
Step S50, determining whether an obtained second difference between the second capacitance value and the first preset capacitance value is greater than the first preset capacitance threshold value;
in this embodiment, when the second capacitance value of the current first capacitor is obtained, the controller calculates a second difference between the second capacitance value and a first preset capacitance value, and then determines whether the second difference is greater than the first preset capacitance value, so as to determine whether the current evaporator is completely defrosted according to an accurate determination result.
And step S60, when the second difference is larger than the first preset capacitance threshold, defrosting the evaporator based on the second difference.
In this embodiment, when the second difference is greater than the first preset capacitance value, the refrigerator is not completely defrosted and is not completely defrosted currently, so that the evaporator is defrosted again according to the second difference, so that the refrigerator can be completely defrosted, the incomplete defrosting condition of the refrigerator is avoided, and the defrosting efficiency of the refrigerator is further improved.
It should be noted that the specific process of performing the defrosting operation on the evaporator based on the second difference is similar to the specific process of performing the defrosting operation on the evaporator based on the first difference, and is not described herein again.
Further, in an embodiment, after the step S50, the defrosting control method of the refrigerator further includes:
and when the second difference value is smaller than or equal to the first preset capacitance threshold value, controlling the refrigerator to enter a refrigeration mode.
When the second difference value is smaller than or equal to the first preset capacitance threshold value, the refrigerator is defrosted, and then the refrigerator is controlled to enter a refrigeration mode, so that refrigeration of the refrigerator is realized.
According to the defrosting control method for the refrigerator provided by the embodiment, when the defrosting operation is completed, the second capacitance value of the current first capacitor is obtained, then it is determined whether the second difference between the obtained second capacitance value and the first preset capacitance value is larger than the first preset capacitance threshold value, and then when the second difference is larger than the first preset capacitance threshold value, the defrosting operation is performed on the evaporator based on the second difference, whether the defrosting of the refrigerator is completed or not can be determined according to the second capacitance value of the first capacitor, and the defrosting operation is performed again when the defrosting of the refrigerator is not completed, so that the refrigerator can be completely defrosted, the incomplete defrosting condition of the refrigerator is avoided, and the defrosting efficiency of the refrigerator is further improved.
A fourth embodiment of a defrosting control method of a refrigerator of the present invention is proposed based on the first embodiment, referring to fig. 5.
In this embodiment, the evaporator is further provided with a second capacitor formed by another pair of capacitor plates arranged in pairs, and the second capacitor and the first capacitor are respectively arranged in different areas on the evaporator.
The second capacitor and the first capacitor are arranged in different areas on the evaporator respectively so as to detect the frosting amount of the different areas on the evaporator.
In the present embodiment, step S30 includes:
step S33, when the first difference is greater than a first preset capacitance threshold, determining whether a third difference between a third capacitance value of the current second capacitance and a second preset capacitance value is greater than a second preset capacitance threshold;
the second preset capacitance value is a capacitance value of the second capacitor when the refrigerator is in a frostless state, and can also be a capacitance value of the second capacitor when the refrigerator leaves a factory; the second preset capacitance threshold is a difference value between a capacitance value of the second capacitor and a second preset capacitance value when the refrigerator is frosted to a certain degree and needs to be defrosted.
In this embodiment, when the first difference is greater than the first preset capacitance threshold, a current third capacitance value of the second capacitor is obtained, a third difference between the third capacitance value and the second preset capacitance value is calculated, and then it is determined whether the third difference is greater than the second preset capacitance value, so as to accurately determine whether the refrigerator needs to be defrosted according to the determination result.
And step S34, when the third difference is larger than a second preset capacitance threshold, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference and the third difference.
In this embodiment, when the third difference is greater than the second preset capacitance threshold, it is determined that all the refrigerators currently need to perform the defrosting operation according to the detection results of the first capacitance and the second capacitance, so that the refrigerators are controlled to exit the cooling mode, that is, the cooling operation is stopped, and meanwhile, the defrosting operation is performed on the evaporator according to the first difference and the third difference.
It should be noted that, performing defrosting operation on the evaporator according to the first difference and the third difference specifically includes: and defrosting the evaporator according to the defrosting parameters corresponding to the first difference and the third difference, namely controlling the heating wire to heat according to the defrosting parameters corresponding to the first difference and the third difference. The defrosting parameters corresponding to each other may be set in advance for the different first difference and third difference, or the defrosting parameters corresponding to each other may be set in combination of the difference interval to which the first difference belongs and the difference interval to which the second difference belongs.
According to the defrosting control method for the refrigerator provided by the embodiment, when the first difference is greater than the first preset capacitor threshold, whether a third difference between a third capacitance value of the second capacitor and a second preset capacitance value is greater than the second preset capacitor threshold is determined, then when the third difference is greater than the second preset capacitor threshold, the refrigerator is controlled to exit from the refrigeration mode, and defrosting operation is performed on the evaporator based on the first difference and the third difference, so that defrosting can be performed on the refrigerator in time according to the capacitance values of the first capacitor and the second capacitor, the defrosting accuracy of the refrigerator is improved, the condition that defrosting of the refrigerator is incomplete or is performed under the condition of no frost due to the adoption of a fixed defrosting period is further avoided, and the defrosting efficiency of the refrigerator is improved.
Based on the first embodiment, a fifth embodiment of the defrosting control method of a refrigerator according to the present invention is provided, and referring to fig. 6, in this embodiment, the evaporator is further provided with a frost formation detecting sensor, and step S30 includes:
step S35, when the first difference is greater than a first preset capacitance threshold, determining whether the detected frosting amount of the frosting detection sensor is greater than a preset frosting amount;
the preset frosting amount is the frosting amount detected by the frosting detection sensor when the refrigerator is frosted to a certain degree and needs to be defrosted.
In this embodiment, when the first difference is greater than the first preset capacitance threshold, the detected frosting amount of the frosting detection sensor is obtained, and then whether the frosting amount is greater than the preset frosting amount is determined, so as to accurately determine whether the refrigerator needs to be defrosted according to the determination result.
And step S36, when the frosting amount is greater than a preset frosting amount, controlling the refrigerator to exit the cooling mode, and performing a defrosting operation on the evaporator based on the first difference and the frosting amount.
In this embodiment, when the frosting amount is greater than the preset frosting amount, it is determined that the defrosting operation is currently required for the refrigerator according to the detection results of the first capacitor and the frosting detection sensor, so that the refrigerator is controlled to exit the cooling mode, that is, the cooling operation is stopped, and meanwhile, the defrosting operation is performed on the evaporator according to the first difference and the frosting amount. The defrosting operation of the evaporator according to the first difference and the frosting amount is the same as the defrosting operation of the evaporator according to the first difference and the third difference, and the details are not repeated herein.
According to the defrosting control method for the refrigerator provided by the embodiment, when the first difference is greater than the first preset capacitance threshold value, whether the detected frosting amount of the frosting detection sensor is greater than the preset frosting amount or not is determined, then when the frosting amount is greater than the preset frosting amount, the refrigerator is controlled to exit from the refrigeration mode, and the defrosting operation is performed on the evaporator based on the first difference and the frosting amount, so that the refrigerator can be defrosted in time according to the capacitance value of the first capacitor and the detection result of the frosting detection sensor, the defrosting accuracy of the refrigerator is improved, the condition that the refrigerator is not defrosted completely or defrosted under the condition of no frost caused by the adoption of a fixed defrosting period is further avoided, and the defrosting efficiency of the refrigerator is improved.
Based on the above embodiments, a sixth embodiment of the defrosting control method of a refrigerator according to the present invention is provided, and referring to fig. 7, in the present embodiment, the defrosting control method of a refrigerator further includes:
step S70, when the refrigerator is started, obtaining the shutdown time corresponding to the current starting operation, and calculating the shutdown duration of the refrigerator based on the current time and the shutdown time;
in this embodiment, each time the refrigerator is powered off or powered off, the refrigerator stores a current time of powering off or powering off, where the time of powering off or powering off is a power-off time corresponding to a current power-on start operation when the refrigerator is powered on and started. When the refrigerator is started, the time of shutdown or power failure, namely the shutdown time, is obtained, and the shutdown duration of the refrigerator is calculated based on the current time and the shutdown time.
Step S80, when the shutdown duration is longer than a preset duration, obtaining a fourth capacitance value of the current first capacitor;
in this embodiment, when the shutdown duration is longer than the preset duration, the current shutdown duration of the refrigerator is long enough, the frost in the refrigerator is completely melted, and the fourth capacitance value of the current first capacitor is the capacitance value when the refrigerator is in the frost-free state.
Step S90, updating the first preset capacitance value based on the acquired fourth capacitance value.
In this embodiment, when the fourth capacitance value is obtained, the first preset capacitance value is updated based on the fourth capacitance value, that is, the fourth capacitance value is set as the first preset capacitance value.
According to the defrosting control method for the refrigerator, when the refrigerator is started, the shutdown time corresponding to the current starting operation is obtained, the shutdown duration of the refrigerator is calculated based on the current time and the shutdown time, then the fourth capacitance value of the first capacitor is obtained when the shutdown duration is longer than the preset duration, and then the first preset capacitance value is updated based on the obtained fourth capacitance value, so that the first capacitance value is mostly the first preset capacitance value when the refrigerator is in a frostless state, the first preset capacitance value can be updated along with the use of the refrigerator, when the performance of the first capacitor is changed along with the long-time use of the refrigerator, the first preset capacitance value is changed along with the change of the refrigerator, and the accuracy and the efficiency of defrosting of the refrigerator are further improved.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a defrosting control program of a refrigerator is stored on the computer-readable storage medium, and when executed by a processor, the defrosting control program of the refrigerator implements the following operations:
when the refrigerator is detected to enter a refrigeration mode, acquiring a first capacitance value of the current first capacitor;
determining whether an acquired first difference value between the first capacitance value and a first preset capacitance value is larger than a first preset capacitance threshold value;
and when the first difference value is larger than a first preset capacitance threshold value, controlling the refrigerator to exit a refrigeration mode, and defrosting the evaporator based on the first difference value.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
acquiring defrosting parameters corresponding to the first difference;
and defrosting the evaporator based on the acquired defrosting parameters.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
and controlling the heating wire to operate according to the defrosting power in the defrosting time.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
when the defrosting operation is finished, acquiring a second capacitance value of the current first capacitor;
determining whether an obtained second difference value between the second capacitance value and the first preset capacitance value is larger than a first preset capacitance threshold value or not;
when the second difference is larger than the first preset capacitance threshold value, defrosting the evaporator based on the second difference.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
and when the second difference value is smaller than or equal to the first preset capacitance threshold value, controlling the refrigerator to enter a refrigeration mode.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
when the first difference value is larger than a first preset capacitance threshold value, determining whether a third difference value between a third capacitance value of the second capacitor and a second preset capacitance value is larger than a second preset capacitance threshold value or not;
and when the third difference value is larger than a second preset capacitance threshold value, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the third difference value.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
when the first difference value is larger than a first preset capacitance threshold value, determining whether the frost formation amount detected by the frost formation detection sensor is larger than a preset frost formation amount or not;
and when the frosting amount is larger than the preset frosting amount, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the frosting amount.
Further, the defrosting control program of the refrigerator, when executed by the processor, further implements the following operations:
when the refrigerator is started, acquiring a shutdown time corresponding to the current starting operation, and calculating the shutdown duration of the refrigerator based on the current time and the shutdown time;
when the shutdown duration is longer than a preset duration, acquiring a fourth capacitance value of the current first capacitor;
and updating the first preset capacitance value based on the acquired fourth capacitance value.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The defrosting control method of the refrigerator is characterized in that the refrigerator comprises an evaporator and a controller, wherein capacitor plates arranged in pairs are arranged on the evaporator and are electrically connected with the controller, so that the capacitor plates arranged in pairs form a first capacitor; the defrosting control method of the refrigerator comprises the following steps:
when the refrigerator is detected to enter a refrigeration mode, acquiring a first capacitance value of the current first capacitor;
determining whether an acquired first difference value between the first capacitance value and a first preset capacitance value is larger than a first preset capacitance threshold value;
when the first difference value is larger than a first preset capacitance threshold value, controlling the refrigerator to exit a refrigeration mode, and carrying out defrosting operation on the evaporator based on the first difference value;
when the defrosting operation is finished, acquiring a second capacitance value of the current first capacitor;
determining whether a second difference value between the obtained second capacitance value and the first preset capacitance value is larger than a first preset capacitance threshold value;
when the second difference is larger than the first preset capacitance threshold value, defrosting the evaporator based on the second difference.
2. The defrosting control method of a refrigerator as claimed in claim 1, wherein the step of performing the defrosting operation on the evaporator based on the first difference value comprises:
acquiring defrosting parameters corresponding to the first difference;
and defrosting the evaporator based on the acquired defrosting parameters.
3. The defrosting control method of a refrigerator according to claim 2, wherein the refrigerator is provided with a heater wire for heating the evaporator, the defrosting parameters include defrosting power and defrosting time duration, and the step of performing the defrosting operation on the evaporator based on the acquired defrosting parameters includes:
and controlling the heating wire to operate according to the defrosting power in the defrosting time.
4. The defrosting control method of a refrigerator according to claim 3, wherein the heating wire is provided in plurality, each of the heating wires extends in a horizontal direction, and each of the heating wires is spaced apart in a height direction of the evaporator.
5. The defrosting control method of a refrigerator according to claim 1, wherein after the step of determining whether the obtained second difference between the second capacitance value and the first preset capacitance value is greater than the first preset capacitance threshold value, the defrosting control method of a refrigerator further comprises:
and when the second difference value is smaller than or equal to the first preset capacitance threshold value, controlling the refrigerator to enter a refrigeration mode.
6. The defrosting control method of a refrigerator as claimed in claim 1, wherein the evaporator is further provided with a second capacitor formed by another pair of capacitor plates disposed in pairs, and the second capacitor and the first capacitor are respectively disposed at different regions on the evaporator; the step of controlling the refrigerator to exit the cooling mode when the first difference is greater than a first preset capacitance threshold, and performing a defrosting operation on the evaporator based on the first difference comprises:
when the first difference value is larger than a first preset capacitance threshold value, determining whether a third difference value between a third capacitance value of the second capacitor and a second preset capacitance value is larger than a second preset capacitance threshold value or not;
and when the third difference value is larger than a second preset capacitance threshold value, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the third difference value.
7. The defrosting control method of a refrigerator as claimed in claim 1, wherein the evaporator is further provided with a frost formation detection sensor, and the step of controlling the refrigerator to exit the cooling mode when the first difference is greater than a first preset capacitance threshold and performing a defrosting operation on the evaporator based on the first difference further comprises:
when the first difference value is larger than a first preset capacitance threshold value, determining whether the frost formation amount detected by the frost formation detection sensor is larger than a preset frost formation amount or not;
and when the frosting amount is larger than the preset frosting amount, controlling the refrigerator to exit the refrigeration mode, and defrosting the evaporator based on the first difference value and the frosting amount.
8. The defrosting control method of a refrigerator of any one of claims 1 to 7, further comprising:
when the refrigerator is started, acquiring a shutdown time corresponding to the current starting operation, and calculating the shutdown duration of the refrigerator based on the current time and the shutdown time;
when the shutdown duration is longer than a preset duration, acquiring a fourth capacitance value of the current first capacitor;
and updating the first preset capacitance value based on the acquired fourth capacitance value.
9. The refrigerator is characterized by comprising an evaporator and a controller, wherein capacitor plates arranged in pairs are arranged on the evaporator and are electrically connected with the controller, so that the capacitor plates arranged in pairs form a first capacitor; the refrigerator further includes: a memory, a processor, and a defrosting control program of a refrigerator stored on the memory and executable on the processor, the defrosting control program of the refrigerator implementing the steps of the defrosting control method of the refrigerator according to any one of claims 1 to 8 when executed by the processor.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a defrosting control program of a refrigerator, which when executed by a processor, implements the steps of the defrosting control method of the refrigerator according to any one of claims 1 to 8.
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| CN110793255A (en) * | 2018-08-03 | 2020-02-14 | 博西华电器（江苏）有限公司 | Refrigeration appliance and control method thereof |
| CN109883135B (en) * | 2019-03-21 | 2021-04-27 | 合肥华凌股份有限公司 | Quick-freezing control method, refrigerator, quick-freezing control device and storage medium |
| CN110425792B (en) * | 2019-08-05 | 2021-09-24 | 合肥华凌股份有限公司 | Defrosting control method of refrigerator, storage medium and refrigerator |
| CN110986465A (en) * | 2019-11-11 | 2020-04-10 | 长虹美菱股份有限公司 | Refrigerator defrosting system |
| CN117128678A (en) * | 2022-05-19 | 2023-11-28 | 合肥美的电冰箱有限公司 | Defrosting control method, sensor assembly, evaporator and defrosting control device |
| CN114812027B (en) * | 2022-05-19 | 2023-12-01 | 合肥美的电冰箱有限公司 | Defrosting control method, frost layer detection device, evaporator and refrigeration equipment |
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