CN111637676B - Load control method, device, medium and terminal equipment - Google Patents

Load control method, device, medium and terminal equipment Download PDF

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Publication number
CN111637676B
CN111637676B CN202010376681.7A CN202010376681A CN111637676B CN 111637676 B CN111637676 B CN 111637676B CN 202010376681 A CN202010376681 A CN 202010376681A CN 111637676 B CN111637676 B CN 111637676B
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China
Prior art keywords
temperature value
temperature
refrigerating chamber
evaporator
value
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CN202010376681.7A
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CN111637676A (en
Inventor
龙晓芬
刘小锋
卢玉波
刘艳飞
李向冕
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/10—Sensors measuring the temperature of the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention discloses a load control method, which comprises the following steps: acquiring the temperature value of a temperature sensing head of an evaporator in real time; when the temperature value of the temperature sensing head of the evaporator is smaller than a preset first threshold value, the waiting stage is exited, and the compressor is controlled to start; after exiting the waiting stage, acquiring the temperature value of the refrigerating chamber; when the temperature value of the temperature sensing head of the evaporator is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value, controlling a fan motor and an air door to be opened; according to the technical scheme, the compressor, the fan motor and the air door are respectively controlled to execute actions according to the numerical relationship between the temperature of the refrigerating chamber and the temperature of the evaporator, so that the temperature drift can be reduced, and energy can be saved.

Description

Load control method, device, medium and terminal equipment
Technical Field
The present invention relates to the field of load control technologies, and in particular, to a load control method, an apparatus, a medium, and a terminal device.
Background
For a single-system frost-free refrigerator, the structure of which is shown in fig. 2 below, generally includes two compartments of refrigeration and freezing, an evaporator is located in a freezing chamber air duct, and cold air is delivered to the freezing chamber by a fan motor. The refrigerating chamber is communicated with the freezing chamber through an air pipe and an air channel, the freezing chamber and the refrigerating chamber are separated or communicated through an air door, when refrigeration is needed, the air door is opened, the fan runs, cold energy is transmitted to the refrigerating chamber, and when the refrigerating chamber does not need refrigeration, the air door is closed. When the operation time is long, frost is accumulated on the evaporator, and the refrigeration efficiency is affected by excessive frost layers, so that the evaporator needs to be defrosted. Defrosting is a heating process, heating is started at a proper time, heating is stopped to start refrigeration, and energy consumption and performance of the refrigerator are greatly influenced. When the defrosting condition is achieved, defrosting is achieved, the heater defrosts through heating, and when the heater reaches a certain temperature, the heater is used as a condition for judging whether defrosting is exited. This temperature is absolutely above zero degrees. When the defrosting process is completed, a waiting time is usually set for a short time to avoid transferring heat from the evaporator space out to the compartments. However, the waiting time is usually fixed according to experience, if the time is too long, the refrigerator does not cool for a long time, the temperature in the refrigerator also rises too much, and if the time is too short, the heat of the heater is transferred to the refrigerator, which also causes the temperature rise and the waste of resources.
Therefore, an intelligent regulation strategy for controlling the waiting time after defrosting is urgently needed in the market at present, and the time when the waiting stage exits and how to exit the waiting stage can be judged according to the needs of the actual refrigerator, so that the temperature drift is reduced, and the energy is saved.
Disclosure of Invention
The invention provides a load control method, a load control device, a load control medium and terminal equipment, which can reduce temperature drift and save energy.
In order to solve the above technical problem, an embodiment of the present invention provides a load control method, including:
acquiring the temperature value of a temperature sensing head of an evaporator in real time;
when the temperature value of the temperature sensing head of the evaporator is smaller than a preset first threshold value, the waiting stage is exited, and the compressor is controlled to start;
after exiting the waiting stage, acquiring the temperature value of the refrigerating chamber;
and when the temperature value of the temperature sensing head of the evaporator is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value, controlling the fan motor and the air door to be opened.
Preferably, in the step of controlling the fan motor and the damper to be opened, the fan motor is first controlled to be opened, and then the damper is opened.
Preferably, after the obtaining of the temperature value of the refrigerating compartment, the method further includes: when the temperature value of the temperature sensing head of the evaporator is higher than that of the refrigerating chamber, the air door is kept closed.
Preferably, the load control method further includes: and after the temperature value of the refrigerating chamber is judged, the temperature value of the refrigerating chamber is obtained, and the starting states of the fan motor and the air door are controlled according to the temperature value of the refrigerating chamber.
An embodiment of the present invention further provides a load control device, including:
the first acquisition module is used for acquiring the temperature value of the temperature sensing head of the evaporator in real time;
the first control module is used for quitting the waiting stage and controlling the compressor to start when the temperature value of the evaporator temperature sensing head is smaller than a preset first threshold value;
the second acquisition module is used for acquiring the temperature value of the refrigerating chamber after the standby stage exits;
and the second control module is used for controlling the fan motor and the air door to be opened when the temperature value of the evaporator temperature sensing head is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value.
Preferably, the second control module is configured to control the fan motor and the damper to be turned on first and then open the damper in the step of controlling the fan motor and the damper to be turned on.
Preferably, the second obtaining module is further configured to, after the temperature value of the refrigerating chamber is obtained, when the temperature value of the evaporator temperature sensing head is higher than the temperature value of the refrigerating chamber, keep the damper closed.
Preferably, the load control device further includes: and the third control module is used for acquiring the temperature value of the freezing chamber after judging the temperature value of the refrigerating chamber, and controlling the starting states of the fan motor and the air door according to the temperature value of the freezing chamber.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the load control method of any one of the above.
An embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the load control method according to any one of the above items when executing the computer program.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the technical scheme, the compressor, the fan motor and the air door are respectively controlled to execute actions according to the numerical relationship between the temperature of the refrigerating chamber and the temperature of the evaporator, so that the temperature drift can be reduced, and energy can be saved.
Drawings
FIG. 1: is a flow chart of the steps of a load control method in an embodiment of the invention;
FIG. 2: is a structural schematic diagram of a single-system frostless refrigerator in the prior art.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a preferred embodiment of the present invention provides a load control method, including:
and S1, acquiring the temperature value of the temperature sensing head of the evaporator in real time.
It should be noted that the defrosting stage is generally divided into a heating stage, a waiting stage and a delay stage, wherein the heating stage enters the waiting stage after the heating stage is finished, and the delay stage enters the delay stage after the waiting stage is finished. And when the preset waiting time is reached, the whole defrosting process is exited, and load control is carried out according to the needs of each chamber. Because the defrosting compressor stops running and is influenced by temperature rise in the defrosting process, each compartment has refrigeration requirements, and the compressor, the fan motor, the fan and the like can start to work basically when the compressor, the fan motor, the fan and the like are finished in a waiting stage. Therefore, in order to accurately control the load, the temperature value of the temperature sensing head of the evaporator is acquired in the first step.
S2, when the temperature value of the temperature sensing head of the evaporator is smaller than a preset first threshold value, the waiting stage is exited, and the start of the compressor is controlled;
specifically, refrigeration is needed after defrosting is finished, the compressor needs to be operated, and when the heating temperature is overWhen the temperature is high, the compressor does not operate well immediately, the temperature can be reduced firstly in a natural cooling mode, namely a waiting stage, but the exit of the waiting stage is not completely fixed, but is judged according to the temperature of the temperature sensing head of the evaporator, and when the temperature value T of the temperature sensing head of the evaporator is higher than the temperature value T of the temperature sensing head of the evaporator, the temperature is reduced to a preset valuezfA preset first threshold value T is reachedyAnd then quitting the waiting stage, and starting the compressor to start refrigeration.
S3, obtaining the temperature value of the refrigerating chamber after exiting the waiting stage;
and S4, when the temperature value of the temperature sensing head of the evaporator is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value, controlling the fan motor and the air door to be opened. In this embodiment, in the step of controlling the fan motor and the damper to be opened, the fan motor is first controlled to be opened, and then the damper is opened.
Specifically, the fan motor is responsible for supplying air, and the air door loads the air volume distribution of the refrigerating chamber; the damper needs to be opened when the fan is in operation, otherwise it is ineffective. When the waiting stage is exited, the delay stage is entered, at which time the compressor is started and the temperature of the evaporator is gradually decreased. The freezer compartment is at a much higher temperature than the freezer compartment and therefore priority is given to freezer compartment temperature control. Monitoring temperature value T of refrigerating chamberrTemperature value T of evaporatorzfThe temperature relationship was compared. When T iszfDown to (T)rΔ T) (where Δ T is a preset second threshold), indicating that the evaporator has satisfied the need for cooling the refrigeration compartment, and may supply air, turn on the fan motor, then open the damper, and if the temperature is not reached, then wait is needed.
In a preferred embodiment, after the obtaining the temperature value of the refrigerating chamber, the method further comprises: when the temperature value of the temperature sensing head of the evaporator is higher than that of the refrigerating chamber, the air door is kept closed. In this embodiment, the load control method further includes: and after the temperature value of the refrigerating chamber is judged, the temperature value of the refrigerating chamber is obtained, and the starting states of the fan motor and the air door are controlled according to the temperature value of the refrigerating chamber.
Specifically, if the evaporator degree is higher than the refrigerating compartment temperature, the damper is closed. And judging the freezing temperature after the cold storage is judged, wherein the temperature of an evaporator is higher than that of a freezing chamber, the temperature of the evaporator is always hot air blown for freezing, and if the cold storage does not reach the condition of opening an air door, a fan motor is not opened until the temperature is reduced to the condition of opening the air door, and the air door of the fan is opened together.
Therefore, the delay process is changed and adjusted according to needs, otherwise, the fan motor and the air door can blow hot air to the compartment by random action, which causes temperature drift and wastes resources.
The invention provides a load control method, which is characterized in that the temperature of a compartment and the temperature of a defrosting temperature sensing head are judged after defrosting, so that the action of an air supply load is controlled, and the phenomenon that the heat is blown to other compartments to cause the temperature in a refrigerator to rise due to overhigh heating temperature after defrosting is prevented. Defrosting is a necessary function of a frost-free refrigerator at present, but the problem that the temperature in the refrigerator rises when defrosting is carried out is solved, so that the temperature drift is large. Therefore, the invention provides the special control of the air door and the fan motor after defrosting to reduce the temperature drift and reduce unnecessary load action so as to achieve the effect of more stable temperature.
Correspondingly, an embodiment of the present invention further provides a load control device, including:
the first acquisition module is used for acquiring the temperature value of the temperature sensing head of the evaporator in real time;
the first control module is used for quitting the waiting stage and controlling the compressor to start when the temperature value of the evaporator temperature sensing head is smaller than a preset first threshold value;
the second acquisition module is used for acquiring the temperature value of the refrigerating chamber after the standby stage exits;
and the second control module is used for controlling the fan motor and the air door to be opened when the temperature value of the evaporator temperature sensing head is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value. In this embodiment, in the step of controlling the fan motor and the damper to be opened, the second control module controls the fan motor to be opened first, and then opens the damper.
In a preferred embodiment, the second obtaining module is further configured to, after obtaining the temperature value of the refrigerating chamber, keep the damper closed when the temperature value of the evaporator temperature sensing head is higher than the temperature value of the refrigerating chamber. In this embodiment, the load control device further includes: and the third control module is used for acquiring the temperature value of the freezing chamber after judging the temperature value of the refrigerating chamber, and controlling the starting states of the fan motor and the air door according to the temperature value of the freezing chamber.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls the device on which the computer-readable storage medium is located to execute the load control method according to any of the above embodiments.
An embodiment of the present invention further provides a terminal device, where the terminal device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the load control method according to any of the above embodiments when executing the computer program.
Preferably, the computer program may be divided into one or more modules/units (e.g., computer program) that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program in the terminal device.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., the general purpose Processor may be a microprocessor, or the Processor may be any conventional Processor, the Processor is a control center of the terminal device, and various interfaces and lines are used to connect various parts of the terminal device.
The memory mainly includes a program storage area that may store an operating system, an application program required for at least one function, and the like, and a data storage area that may store related data and the like. In addition, the memory may be a high speed random access memory, may also be a non-volatile memory, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), and the like, or may also be other volatile solid state memory devices.
It should be noted that the terminal device may include, but is not limited to, a processor and a memory, and those skilled in the art will understand that the terminal device is only an example and does not constitute a limitation of the terminal device, and may include more or less components, or combine some components, or different components.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A method of load control, comprising:
acquiring the temperature value of a temperature sensing head of an evaporator in real time;
when the temperature value of the temperature sensing head of the evaporator is smaller than a preset first threshold value, the waiting stage is exited, and the compressor is controlled to start;
after exiting the waiting stage, acquiring the temperature value of the refrigerating chamber;
when the temperature value of the temperature sensing head of the evaporator is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value, controlling a fan motor and an air door to be opened;
when the temperature value of the temperature sensing head of the evaporator is higher than that of the refrigerating chamber, the air door is kept closed.
2. The load control method of claim 1, wherein the step of controlling the fan motor and the damper to open comprises controlling the fan motor to open and then opening the damper.
3. The load control method of claim 1, further comprising: and after the temperature value of the refrigerating chamber is judged, acquiring the temperature value of the refrigerating chamber, and controlling the starting states of the fan motor and the air door according to the temperature value of the refrigerating chamber.
4. A load control device, comprising:
the first acquisition module is used for acquiring the temperature value of the temperature sensing head of the evaporator in real time;
the first control module is used for quitting the waiting stage and controlling the compressor to start when the temperature value of the evaporator temperature sensing head is smaller than a preset first threshold value;
the second acquisition module is used for acquiring the temperature value of the refrigerating chamber after the standby stage exits;
the second control module is used for controlling the fan motor and the air door to be opened when the temperature value of the temperature sensing head of the evaporator is smaller than the difference value between the temperature value of the refrigerating chamber and a preset second threshold value;
the second obtaining module is further used for keeping the air door closed when the temperature value of the evaporator temperature sensing head is higher than the temperature value of the refrigerating chamber after the temperature value of the refrigerating chamber is obtained.
5. The load control device of claim 4, wherein the second control module is configured to control the fan motor and the damper to open before controlling the fan motor and the damper to open.
6. The load control device of claim 4, further comprising: and the third control module is used for acquiring the temperature value of the freezing chamber after judging the temperature value of the refrigerating chamber, and controlling the starting states of the fan motor and the air door according to the temperature value of the freezing chamber.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program; wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the load control method of any of claims 1 to 3.
8. A terminal device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the load control method according to any one of claims 1 to 3 when executing the computer program.
CN202010376681.7A 2020-05-07 2020-05-07 Load control method, device, medium and terminal equipment Active CN111637676B (en)

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Application Number Priority Date Filing Date Title
CN202010376681.7A CN111637676B (en) 2020-05-07 2020-05-07 Load control method, device, medium and terminal equipment

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CN111637676B true CN111637676B (en) 2022-06-21

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002090036A (en) * 2000-09-20 2002-03-27 Fujitsu General Ltd Electric refrigerator
CN106766525B (en) * 2016-12-26 2019-11-05 青岛海尔股份有限公司 Wind cooling refrigerator and its defrosting control method
CN107421200B (en) * 2017-06-14 2019-10-11 长虹美菱股份有限公司 A kind of wind cooling refrigerator defrosting control method
CN107763957B (en) * 2017-09-14 2020-03-17 青岛海尔股份有限公司 Defrosting control method and device and refrigeration equipment applying same

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