CN111811198A - Defrosting control method and device and electric equipment - Google Patents
Defrosting control method and device and electric equipment Download PDFInfo
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- CN111811198A CN111811198A CN202010495504.0A CN202010495504A CN111811198A CN 111811198 A CN111811198 A CN 111811198A CN 202010495504 A CN202010495504 A CN 202010495504A CN 111811198 A CN111811198 A CN 111811198A
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- defrosting
- heat exchange
- evaporator
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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
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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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- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The application relates to a defrosting control method, a defrosting control device and electric equipment, wherein the defrosting control method comprises the steps of collecting refrigerant parameters at an evaporator; calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters; and controlling the defrosting heater to be started according to the heat exchange coefficient. This application uses heat transfer coefficient as the entrance point of defrosting, avoids external factor to the influence of defrosting heater work, opens at suitable opportunity through control defrosting heater, can reduce the refrigerator consumption.
Description
Technical Field
The application belongs to the technical field of defrosting control, and particularly relates to a defrosting control method and device and electric equipment.
Background
With the continuous progress of science and technology, air-cooled refrigerators become the mainstream of the market, and the air-cooled refrigerators distribute cold energy generated by a built-in evaporator in each compartment of the refrigerator in a convection mode according to the requirement through a fan. However, because the surface temperature of the evaporator is too low, moisture in the air can be condensed on the surface of the evaporator to gradually form a frost layer, which leads to increase of heat exchange resistance of the evaporator and reduction of heat exchange efficiency, and therefore defrosting needs to be performed after the evaporator operates for a period of time.
The conventional defrosting control method mainly comprises the steps of controlling the turn-on of the defrosting heater according to the accumulated running time of the compressor and controlling the stop of the defrosting heater according to the temperature acquired by the defrosting heating sensor. However, this control method sometimes cannot perform defrosting operation according to the actual condition of the refrigerator, for example, the influence of the humidity in the air, the number of times of opening the door, etc. is not considered, so that the frost layer is already thick or is still thin when the defrosting heater is turned on, which greatly increases the power consumption of the refrigerator.
Disclosure of Invention
In order to overcome the problems that in the related art, the opening of a defrosting heater is controlled according to the accumulated running time of a compressor, the defrosting operation cannot be executed according to the actual condition of a refrigerator by a defrosting control method for controlling the stopping of the defrosting heater according to the temperature acquired by a defrosting heating sensor, the defrosting heater is easy to be opened, the frost layer is already thick or is still thin, and the power consumption of the refrigerator is greatly increased, at least to a certain extent, the defrosting control method, the defrosting control device and the power consumption equipment are provided.
In a first aspect, the present application provides a defrosting control method comprising:
collecting refrigerant parameters at an evaporator;
calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
and controlling the defrosting heater to be started according to the heat exchange coefficient.
Further, the controlling the defrosting heater to be turned on according to the heat exchange coefficient includes:
if the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient, controlling the defrosting heater to be started; alternatively, the first and second electrodes may be,
and if the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient and the defrosting interval time is greater than or equal to a preset minimum time interval, controlling the defrosting heater to be started.
Further, the controlling the defrosting heater to be turned on according to the heat exchange coefficient includes:
and if the heat exchange coefficient is greater than the preset minimum heat exchange coefficient and the defrosting interval time is greater than the preset maximum time interval, controlling the defrosting heater to be started.
Further, the method further comprises:
detecting a temperature value of a defrosting sensor;
and controlling the defrosting heater to be turned off according to the temperature value.
Further, the controlling the defrosting heater to be turned off according to the temperature value includes:
and if the temperature value is greater than or equal to a preset maximum temperature value, controlling the defrosting heater to be turned off.
Further, the controlling the defrosting heater to be turned off according to the temperature value includes:
if the temperature value is smaller than the maximum preset temperature value, the working time of the defrosting heater is obtained, and if the working time is longer than or equal to the maximum preset time, the defrosting heater is controlled to be turned off.
Further, the refrigerant parameters include:
at least one of the pressure of the refrigerant entering and exiting the evaporator, the pressure and temperature of the refrigerant entering and exiting the evaporator, the flow rate of the refrigerant outlet, the specific volume of the evaporator at the refrigerant position and the heat exchange area of the evaporator.
Further, the calculating the heat exchange coefficient of the evaporator according to the refrigerant parameter includes:
determining the enthalpy value of the refrigerant entering and exiting the evaporator according to the pressure of the refrigerant entering and exiting the evaporator and the temperature of the refrigerant entering and exiting the evaporator;
calculating the mass flow of the refrigerant according to the outlet flow velocity of the refrigerant and the specific volume of the evaporator at the refrigerant position;
and calculating the heat exchange coefficient of the evaporator according to the enthalpy value of the refrigerant entering and exiting the evaporator, the mass flow of the refrigerant and the heat exchange area of the evaporator.
In a second aspect, the present application provides a defrosting control apparatus comprising:
the acquisition module is used for acquiring refrigerant parameters at the evaporator;
the calculation module is used for calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
and the control module is used for controlling the defrosting heater to be started according to the heat exchange coefficient.
In a third aspect, the present application provides a refrigerator comprising:
an evaporator, a defrosting heater, a defrosting sensor and a defrosting control device as described in the second aspect.
Further, the electric appliance includes an air-cooled refrigerator.
In a fourth aspect, the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the defrost control method of any one of the first aspects.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the defrosting control method, the defrosting control device and the electric equipment provided by the embodiment of the invention, the refrigerant parameters at the evaporator are collected; calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters; the defrosting heater is controlled to be started according to the heat exchange coefficient, the heat exchange coefficient is used as a defrosting entry point, the influence of external factors on the working of the defrosting heater is avoided, and the power consumption of the refrigerator can be reduced by controlling the defrosting heater to be started at a proper time.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a flowchart of a defrosting control method according to an embodiment of the present application.
Fig. 2 is a flowchart of a defrosting control method according to another embodiment of the present application.
Fig. 3 is a flowchart of a defrosting control method according to another embodiment of the present application.
Fig. 4 is a flowchart of a defrosting control method according to another embodiment of the present application.
Fig. 5 is a flowchart of a defrosting control method according to another embodiment of the present application.
Fig. 6 is a flowchart of a defrosting control method according to another embodiment of the present application.
Fig. 7 is a functional structure diagram of a defrosting control device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a flowchart of a defrosting control method according to an embodiment of the present application, and as shown in fig. 1, the defrosting control method includes:
s11: collecting refrigerant parameters at an evaporator;
s12: calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
s13: and controlling the defrosting heater to be started according to the heat exchange coefficient.
In some embodiments, controlling the defrosting heater to turn on according to the heat exchange coefficient comprises: and if the heat exchange coefficient is less than or equal to the preset minimum heat exchange coefficient, controlling the defrosting heater to be started.
The conventional defrosting control method mainly comprises the steps of controlling the turn-on of the defrosting heater according to the accumulated running time of the compressor and controlling the stop of the defrosting heater according to the temperature acquired by the defrosting heating sensor. However, this control method sometimes cannot perform the defrosting operation according to the actual situation of the electric equipment such as the refrigerator, for example, the influence of the humidity in the air, the number of opening the door and other factors is not considered, which easily causes the defrosting heater to be turned on too early or too late, and greatly increases the power consumption of the electric equipment.
In the embodiment, the refrigerant parameters at the evaporator are collected; calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters; the defrosting heater is controlled to be started according to the heat exchange coefficient, the heat exchange coefficient is used as a defrosting entry point, the influence of external factors on the working of the defrosting heater is avoided, and the power consumption of the refrigerator can be reduced by controlling the defrosting heater to be started at a proper time.
An embodiment of the present invention provides another defrosting control method, as shown in a flowchart in fig. 2, the defrosting control method includes:
s21: collecting refrigerant parameters at an evaporator;
in some embodiments, the refrigerant parameters include, but are not limited to:
the pressure of the refrigerant entering and exiting the evaporator, the pressure and temperature of the refrigerant entering and exiting the evaporator, the flow rate of the refrigerant outlet, the specific volume of the evaporator at the refrigerant position and the heat exchange area of the evaporator.
S22: calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
in some embodiments, as shown in fig. 3, calculating the heat exchange coefficient of the evaporator according to the refrigerant parameter may be implemented according to the following steps:
s221: determining the enthalpy value of the refrigerant entering and exiting the evaporator according to the pressure of the refrigerant entering and exiting the evaporator and the temperature of the refrigerant entering and exiting the evaporator;
s222: calculating the mass flow of the refrigerant according to the outlet flow velocity of the refrigerant and the specific volume of the evaporator at the refrigerant position;
s223: and calculating the heat exchange coefficient of the evaporator according to the enthalpy value of the refrigerant entering and exiting the evaporator, the mass flow of the refrigerant and the heat exchange area of the evaporator.
For example, the pressure p of the refrigerant entering and exiting the evaporator is respectively collected according to a pressure sensor, a temperature sensor and a flow rate measuring instrument which are arranged in the evaporator pipeline1，p2Temperature t1，t2Refrigerant outlet flow rate qv. The enthalpy value h of the refrigerant entering and exiting the evaporator can be determined through the pressure-enthalpy diagram1，h2。
Obtaining the specific volume v of the evaporator at the refrigerant2The heat exchange area A of the evaporator is the mass flow q of the refrigerantm＝qv/v2The heat transfer coefficient of the evaporator
S23: and if the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient and the defrosting interval time is greater than or equal to a preset minimum time interval, controlling the defrosting heater to be started.
The heat exchange coefficient can effectively reflect whether the evaporator is full of frost or not, directly reflects the heat exchange effect of the evaporator, avoids the influence of external factors and effectively controls the defrosting heater to be started.
In this embodiment, the start of defrosting heater is controlled through the heat transfer coefficient control of evaporimeter, avoids defrosting heater to open too early or lead to the refrigerator energy consumption to increase too late to, through predetermineeing minimum time interval, judge whether defrosting interval time is more than or equal to predetermineeing minimum time interval when the heat transfer coefficient satisfies the turn-on condition, can avoid defrosting heater frequent start, lead to unnecessary wasting of resources.
An embodiment of the present invention provides another defrosting control method, as shown in a flowchart in fig. 4, where the defrosting control method includes:
s41: judging whether the defrosting interval time is greater than a preset maximum time interval or not when the heat exchange coefficient is greater than the minimum heat exchange coefficient;
s42: if yes, the defrosting heater is controlled to be started.
In this embodiment, through presetting the maximum time interval, judge when the heat transfer coefficient does not satisfy the turn-on condition whether change the frost interval time more than or equal to preset the maximum time interval, force to open when more than or equal to preset the maximum time interval and change the frost heater, can avoid appearing not opening the defrosting always and lead to the refrigeration effect not good or the consumer breaks down when acquireing refrigerant parameter goes wrong or the heat transfer coefficient who calculates, further guarantee to change the work of frosting and open in time.
An embodiment of the present invention provides another defrosting control method, as shown in a flowchart in fig. 5, where the defrosting control method includes:
s51: detecting a temperature value of a defrosting sensor;
s52: and controlling the defrosting heater to be turned off according to the temperature value.
In some embodiments, controlling the defrosting heater to turn off according to the temperature value includes: and if the temperature value is greater than or equal to the preset maximum temperature value, controlling the defrosting heater to be turned off.
In the embodiment, the defrosting heater is controlled to be turned off according to the temperature value, the defrosting heater can be stopped from working in time, the starting and stopping of the defrosting heater are effectively controlled, and the energy consumption of electric equipment is reduced.
An embodiment of the present invention provides another defrosting control method, as shown in a flowchart in fig. 6, where the defrosting control method includes:
s61: the method comprises the following steps that a compressor normally runs, electric equipment normally refrigerates, and a heat exchange coefficient K is calculated every preset interval time;
for example, the heat exchange coefficient is calculated once every 5 minutes, and it should be noted that the shorter the interval time is, the more real-time the obtained heat exchange coefficient can be ensured, thereby ensuring the timeliness of defrosting. The interval time can be set according to the experience of those skilled in the art, and is not limited in the present application.
S62: judging that K is less than or equal to K0If yes, executing S63, if no, executing S65;
s63: judging t is more than or equal to tminIf yes, executing S64, if no, executing S61;
s64: starting a defrosting heater to start defrosting;
s65: judging t is more than or equal to tmaxIf yes, executing S64, if no, executing S61;
s66: judging that T is more than or equal to TmaxIf yes, executing S68, if no, executing S67;
s67: judging N is larger than or equal to N, if so, executing S68, otherwise, executing S64;
s68: and stopping the defrosting heater, finishing defrosting, and enabling the evaporator to enter a water dropping process.
Wherein: k is the calculated heat exchange coefficient; k0A preset minimum heat exchange coefficient is obtained; n is the working time of the defrosting heater; n is the maximum working time of the preset defrosting heater; t is defrosting interval; t is tmaxTo preset a maximum defrosting time interval, tminPresetting a minimum defrosting time interval; t is the temperature obtained by the defrosting sensor; t ismaxIs a preset maximum temperature.
The defrosting heater is controlled to be turned off by presetting the working maximum time of the defrosting heater, wherein the working time of the defrosting heater is more than or equal to the preset maximum time, so that the defrosting heater can be prevented from being damaged due to overlong working time, the defrosting heater and electric equipment are protected from working normally, and the working lives of the defrosting heater and the electric equipment are prolonged.
In the embodiment, the defrosting heater is controlled to be started and stopped in time through parameters such as the heat exchange coefficient, the working time of the defrosting heater, the minimum defrosting time interval, the maximum defrosting time interval and the maximum temperature value, and the power consumption of the refrigerator can be reduced.
An embodiment of the present invention provides a defrosting control device, as shown in a functional structure diagram of fig. 7, the defrosting control device includes:
the acquisition module 71 is used for acquiring refrigerant parameters at the evaporator;
the calculating module 72 is used for calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
and the control module 73 is used for controlling the defrosting heater to be started according to the heat exchange coefficient.
The control module 73 is used for controlling the defrosting heater to be started according to the heat exchange coefficient and comprises the following steps: controlling the defrosting heater to be started when the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient;
when the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient and the defrosting interval time is greater than or equal to a preset minimum time interval, controlling the defrosting heater to be started;
and when the heat exchange coefficient is larger than the preset minimum heat exchange coefficient and the defrosting interval time is larger than the preset maximum time interval, controlling the defrosting heater to be started.
In some embodiments, the apparatus further comprises:
the detection module 74 is used for detecting the temperature value of the defrosting sensor;
the control module 73 is further configured to control the defrosting heater to be turned off according to the temperature value, and includes:
controlling the defrosting heater to be turned off when the temperature value is greater than or equal to a preset maximum temperature value;
or when the temperature value is smaller than the preset maximum temperature value, the working time of the defrosting heater is obtained, and if the working time is longer than or equal to the preset maximum time, the defrosting heater is controlled to be turned off.
In this embodiment, gather evaporimeter department refrigerant parameter through collection module, calculation module calculates the heat transfer coefficient of evaporimeter according to the refrigerant parameter, and control module controls the heater that defrosts according to heat transfer coefficient and opens to heat transfer coefficient is the access point of defrosting, avoids the influence of external factor to the heater work that defrosts, opens at suitable opportunity through controlling the heater that defrosts, can reduce the refrigerator consumption.
An embodiment of the present invention provides an electric device, including:
the defrosting control device comprises an evaporator, a defrosting heater, a defrosting sensor and the defrosting control device according to the embodiment.
In some embodiments, the appliance device comprises an air-cooled refrigerator.
Embodiments of the present invention provide a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing a defrosting control method as described in the above-described embodiments.
It should be noted that the defrosting control method, the defrosting control device and the electric equipment belong to a general inventive concept, and the contents in the embodiments of the defrosting control method, the defrosting control device and the electric equipment are mutually applicable.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
It should be noted that the present invention is not limited to the above-mentioned preferred embodiments, and those skilled in the art can obtain other products in various forms without departing from the spirit of the present invention, but any changes in shape or structure can be made within the scope of the present invention with the same or similar technical solutions as those of the present invention.
Claims (11)
1. A defrosting control method is characterized by comprising the following steps:
collecting refrigerant parameters at an evaporator;
calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
and controlling the defrosting heater to be started according to the heat exchange coefficient.
2. The defrosting control method according to claim 1, wherein the controlling of the defrosting heater to be turned on according to the heat exchange coefficient comprises:
if the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient, controlling the defrosting heater to be started; alternatively, the first and second electrodes may be,
and if the heat exchange coefficient is less than or equal to a preset minimum heat exchange coefficient and the defrosting interval time is greater than or equal to a preset minimum time interval, controlling the defrosting heater to be started.
3. The defrosting control method according to claim 1, wherein the controlling of the defrosting heater to be turned on according to the heat exchange coefficient comprises:
and if the heat exchange coefficient is greater than the preset minimum heat exchange coefficient and the defrosting interval time is greater than the preset maximum time interval, controlling the defrosting heater to be started.
4. The defrosting control method according to claim 1, further comprising:
detecting a temperature value of a defrosting sensor;
and controlling the defrosting heater to be turned off according to the temperature value.
5. The defrosting control method according to claim 4, wherein the controlling the defrosting heater to be turned off according to the temperature value includes:
and if the temperature value is greater than or equal to a preset maximum temperature value, controlling the defrosting heater to be turned off.
6. The defrosting control method according to claim 4, wherein the controlling the defrosting heater to be turned off according to the temperature value includes:
if the temperature value is smaller than the maximum preset temperature value, the working time of the defrosting heater is obtained, and if the working time is longer than or equal to the maximum preset time, the defrosting heater is controlled to be turned off.
7. The defrosting control method according to any one of claims 1 to 6, wherein the refrigerant parameters include:
at least one of the pressure of the refrigerant entering and exiting the evaporator, the temperature of the refrigerant entering and exiting the evaporator, the flow rate of the refrigerant outlet, the specific volume of the evaporator at the refrigerant position and the heat exchange area of the evaporator.
8. The defrosting control method of claim 7, wherein the calculating the heat exchange coefficient of the evaporator according to the refrigerant parameter comprises:
determining the enthalpy value of the refrigerant entering and exiting the evaporator according to the pressure and the temperature of the refrigerant entering and exiting the evaporator;
calculating the mass flow of the refrigerant according to the outlet flow velocity of the refrigerant and the specific volume of the evaporator at the refrigerant position;
and calculating the heat exchange coefficient of the evaporator according to the enthalpy value of the refrigerant entering and exiting the evaporator, the mass flow of the refrigerant and the heat exchange area of the evaporator.
9. A defrosting control apparatus characterized by comprising:
the acquisition module is used for acquiring refrigerant parameters at the evaporator;
the calculation module is used for calculating the heat exchange coefficient of the evaporator according to the refrigerant parameters;
and the control module is used for controlling the defrosting heater to be started according to the heat exchange coefficient.
10. An electrical device, comprising:
an evaporator, a defrosting heater, a defrosting sensor and the defrosting control apparatus as claimed in claim 9.
11. The appliance of claim 10, wherein the appliance comprises an air-cooled refrigerator.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113237258A (en) * | 2021-05-31 | 2021-08-10 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method thereof |
| CN113587520A (en) * | 2021-08-17 | 2021-11-02 | 四川虹美智能科技有限公司 | Refrigerator defrosting system abnormity detection method and device |
| CN113606833A (en) * | 2021-08-17 | 2021-11-05 | 四川虹美智能科技有限公司 | Refrigerator fault prediction system based on LSTM recurrent neural network |
| CN113865259A (en) * | 2021-10-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Defrosting control method and device, air cooler and refrigeration house |
| CN115307370A (en) * | 2022-06-23 | 2022-11-08 | 新奥数能科技有限公司 | Air cooler defrosting control method and device based on Yun Bian coordination |
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| CN113237258A (en) * | 2021-05-31 | 2021-08-10 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method thereof |
| CN113587520A (en) * | 2021-08-17 | 2021-11-02 | 四川虹美智能科技有限公司 | Refrigerator defrosting system abnormity detection method and device |
| CN113606833A (en) * | 2021-08-17 | 2021-11-05 | 四川虹美智能科技有限公司 | Refrigerator fault prediction system based on LSTM recurrent neural network |
| CN113606833B (en) * | 2021-08-17 | 2022-12-13 | 四川虹美智能科技有限公司 | Refrigerator fault prediction system based on LSTM recurrent neural network |
| CN113865259A (en) * | 2021-10-22 | 2021-12-31 | 珠海格力电器股份有限公司 | Defrosting control method and device, air cooler and refrigeration house |
| CN115307370A (en) * | 2022-06-23 | 2022-11-08 | 新奥数能科技有限公司 | Air cooler defrosting control method and device based on Yun Bian coordination |
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Application publication date: 20201023 |