CN117213142A - Refrigerator with magnetic field fresh-keeping compartment and control method thereof - Google Patents
Refrigerator with magnetic field fresh-keeping compartment and control method thereof Download PDFInfo
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- CN117213142A CN117213142A CN202210625229.9A CN202210625229A CN117213142A CN 117213142 A CN117213142 A CN 117213142A CN 202210625229 A CN202210625229 A CN 202210625229A CN 117213142 A CN117213142 A CN 117213142A
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- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000007710 freezing Methods 0.000 claims abstract description 28
- 230000008014 freezing Effects 0.000 claims abstract description 28
- 238000005057 refrigeration Methods 0.000 claims description 94
- 238000001816 cooling Methods 0.000 claims description 50
- 238000004321 preservation Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 34
- 235000013305 food Nutrition 0.000 description 25
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- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
-
- 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
Abstract
The invention provides a refrigerator with a magnetic field fresh-keeping compartment and a control method thereof, wherein the refrigerator comprises a refrigerator body and a refrigerating air duct, wherein a freezing compartment and the magnetic field fresh-keeping compartment are defined in the refrigerator body, and the refrigerating air duct extends from the freezing compartment to the magnetic field fresh-keeping compartment and is provided with a fresh-keeping air door; the part of the refrigerating air duct, which is positioned in the freezing compartment, is internally provided with an evaporator and a fan, and the control method comprises the following steps: after the refrigerator starts refrigerating, acquiring the temperature of the magnetic field fresh-keeping compartment; controlling the opening and closing of the fresh-keeping air door according to the temperature of the magnetic field fresh-keeping compartment; acquiring the temperature of the evaporator when the fresh air door is in an open state; and controlling the operation mode of the fan according to the temperature of the evaporator. According to the scheme provided by the invention, the situation that the stored matters are frozen due to the fact that the temperature of the refrigerating air flow is too low can be avoided, and the fresh-keeping storage quality is effectively improved.
Description
Technical Field
The invention relates to refrigeration and freezing equipment, in particular to a refrigerator with a magnetic field fresh-keeping compartment and a control method thereof.
Background
The research shows that the magnetic field can inhibit the growth of microorganisms and mould and prolong the storage period of food materials. Therefore, the magnetic field can be used for assisting in freezing the food materials, and the purpose of prolonging the storage period of the food materials is achieved. When the magnetic field is used for assisting in freezing food materials, the magnetic field limits the free path of water molecules to a certain extent, and the free path is specifically represented by hydrogen bond breakage in a water molecular cluster. The crystal nucleus growth is restrained in the phase change process of water, the growth rate of the crystal crystals is higher than the migration rate of water molecules, and the generated crystal crystals are smaller, so that the damage to cells is smaller, the loss rate of juice in food materials is reduced, and the nutrition and taste of the food materials can be better preserved.
In the prior art, some refrigerators are specially provided with a magnetic field fresh-keeping compartment, so that food is ensured to be preserved under the condition of no freezing by adjusting the temperature, and on the other hand, the magnetic field further inhibits the propagation of microorganisms such as bacteria and the loss of nutrients, thereby providing a better storage environment for food materials, particularly fruits and vegetables. The target design temperature of the magnetic field fresh-keeping compartment is generally set to be within the range of-1.0 to-3.0 ℃, and if the compartment temperature is lower than-3.0 ℃, the food materials are easy to freeze. In order to enable the appearance of the magnetic field fresh-keeping compartment, the door body of the fresh-keeping compartment is designed into a glass door or a transparent plastic door, the heat preservation effect is poor, and when the temperature of the air outlet is reduced, the wall surface of the door is also reduced to below-3.0 ℃. After the food materials are stuck to the wall surface of the door, the freezing phenomenon is easy to occur, and the preservation and storage quality is affected.
Disclosure of Invention
The invention aims to prevent stored objects from being frozen in the refrigerating process of the magnetic field fresh-keeping compartment and improve the fresh-keeping storage quality.
It is a further object of the present invention to reduce power consumption and improve refrigeration efficiency.
In order to achieve the above object, the present invention provides a control method of a refrigerator provided with a magnetic field fresh-keeping compartment, wherein the refrigerator comprises a box body and a refrigerating air duct arranged in the box body, a freezing compartment and a magnetic field fresh-keeping compartment are defined in the box body, the refrigerating air duct extends from the freezing compartment to the magnetic field fresh-keeping compartment, and a fresh-keeping air door is arranged at a position leading to the magnetic field fresh-keeping compartment; the part of the refrigerating air duct located in the freezing compartment is internally provided with an evaporator and a fan, the fan is used for promoting the formation of refrigerating air flow which flows through the evaporator and is supplied to the freezing compartment and/or the magnetic field fresh-keeping compartment, and the control method comprises the following steps:
after the refrigerator starts refrigerating, acquiring the temperature of the magnetic field fresh-keeping compartment;
controlling the opening and closing of the fresh-keeping air door according to the temperature of the magnetic field fresh-keeping compartment;
acquiring the temperature of the evaporator when the fresh air door is in an open state;
and controlling the operation mode of the fan according to the temperature of the evaporator.
Optionally, the step of controlling the operation mode of the blower according to the temperature of the evaporator includes:
judging whether the temperature of the evaporator is greater than or equal to a preset first temperature threshold value;
if yes, controlling the fan to be continuously started;
judging whether the temperature of the evaporator is smaller than a preset first temperature threshold value and larger than or equal to a preset second temperature threshold value;
if yes, controlling the fans to be started at intervals.
Optionally, the step of controlling the operation mode of the fan according to the temperature of the evaporator further comprises:
and closing the fresh-keeping air door and controlling the fan to be continuously opened under the condition that the temperature of the evaporator is smaller than the second temperature threshold value.
Alternatively, the on-off ratio of the blower decreases with decreasing temperature of the evaporator.
Optionally, a refrigeration compartment is further defined in the case, the refrigeration duct is further configured to extend from the refrigeration compartment to the refrigeration compartment, and a portion of the refrigeration duct leading to the refrigeration compartment is provided with a refrigeration damper, and the control method further includes, after the refrigerator starts refrigeration:
acquiring the temperature of the refrigerating compartment;
and controlling the opening and closing of the refrigerating air door according to the temperature of the refrigerating compartment.
Optionally, the step of controlling the opening and closing of the fresh-keeping damper according to the temperature of the magnetic field fresh-keeping compartment includes: controlling a fresh-keeping air door to open under the condition that the temperature of the magnetic field fresh-keeping compartment is greater than or equal to the preset fresh-keeping refrigeration starting temperature; and controlling the fresh-keeping air door to be closed under the condition that the temperature of the magnetic field fresh-keeping compartment is less than or equal to the preset fresh-keeping refrigeration shutdown temperature;
the step of controlling the opening and closing of the refrigerating damper according to the temperature of the refrigerating compartment comprises: controlling a refrigeration air door to be opened under the condition that the temperature of the refrigeration compartment is larger than or equal to the preset refrigeration starting temperature; and controlling the refrigeration air door to be closed under the condition that the temperature of the refrigeration compartment is less than or equal to the preset refrigeration shutdown temperature.
Optionally, acquiring the cooling speed of the magnetic field fresh-keeping compartment and the cooling speed of the refrigeration compartment under the state that the fresh-keeping air door and the refrigeration air door are both opened;
and when the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigeration compartment exceeds a set threshold value, controlling the fresh-keeping air door to be opened at intervals.
Optionally, the start-stop ratio of the fresh food damper is correspondingly reduced as the ratio of the cooling rate of the magnetic field fresh food compartment to the cooling rate of the refrigeration compartment is increased.
Optionally, the opening of the fresh-keeping air door is adjustable, and the cooling speed of the magnetic field fresh-keeping compartment and the cooling speed of the refrigeration compartment are obtained when the fresh-keeping air door and the refrigeration air door are both in an opened state;
when the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigerating compartment exceeds a set threshold, the opening of the fresh-keeping air door is reduced, and the opening of the fresh-keeping air door is correspondingly reduced along with the increase of the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigerating compartment.
According to another aspect of the present invention, there is also provided a refrigerator provided with a magnetic field fresh-keeping compartment, the refrigerator including a cabinet and a cooling air duct provided in the cabinet, wherein,
a freezing chamber and a magnetic field fresh-keeping chamber are defined in the box body,
the refrigerating air duct extends from the refrigerating compartment to the magnetic field fresh-keeping compartment, and a fresh-keeping air door is arranged at the position leading to the magnetic field fresh-keeping compartment;
the part of the refrigeration air duct, which is positioned in the refrigeration compartment, is internally provided with an evaporator and a fan, and the fan is used for promoting the formation of refrigeration air flow which flows through the evaporator and is supplied to the refrigeration compartment and/or the magnetic field fresh-keeping compartment;
the controller comprises a memory and a processor, wherein the memory stores a machine executable program, and the machine executable program realizes any control method of the refrigerator provided with the magnetic field fresh-keeping compartment when being executed by the processor.
Based on the foregoing description, it can be understood by those skilled in the art that in the foregoing technical solution of the present invention, a refrigerator body is provided with a magnetic field fresh-keeping compartment, a refrigeration air channel provides refrigeration air flow for a refrigeration compartment and the magnetic field fresh-keeping compartment, and after the refrigerator starts refrigeration, the opening and closing of a fresh-keeping air door is controlled according to the temperature of the magnetic field fresh-keeping compartment; and when the fresh air door is in an open state, controlling the running mode of the fan according to the temperature of the evaporator. Through adjusting the running mode of fan, utilize the regulation of air door and fan to avoid leading to the condition that the storage appears freezing because of refrigerating air flow temperature is too low, effectively improve fresh-keeping storage quality.
Further, the refrigerator provided with the magnetic field fresh-keeping compartment and the control method thereof, provided by the invention, have the advantages that the refrigerating air duct also provides refrigerating air flow for the refrigerating compartment, and the opening and closing of the refrigerating air door are controlled according to the temperature of the refrigerating compartment. By adjusting the refrigerating air door and the fresh-keeping air door, the magnetic field fresh-keeping compartment and the refrigerating compartment are guaranteed to supply air and refrigerate simultaneously as much as possible, and the characteristic that the return air temperature of the refrigerating compartment is higher is utilized, so that the too low temperature of the refrigerating air flow of the magnetic field fresh-keeping compartment is avoided.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. It will be understood by those skilled in the art that components or portions thereof identified in different drawings by the same reference numerals are identical or similar; the drawings of the invention are not necessarily to scale relative to each other.
In the accompanying drawings:
FIG. 1 is a schematic view of a storage compartment of a refrigerator provided with a magnetic field fresh keeping compartment according to one embodiment of the invention;
FIG. 2 is an internal side sectional view of a refrigerator provided with a magnetic field fresh food compartment according to one embodiment of the invention;
FIG. 3 is a schematic view of a magnetic field fresh food compartment in a refrigerator provided with a magnetic field fresh food compartment according to one embodiment of the invention;
FIG. 4 is a system block diagram of a control assembly of a refrigerator provided with a magnetic field fresh keeping compartment according to one embodiment of the invention;
fig. 5 is a schematic view of a control method of a refrigerator provided with a magnetic field fresh keeping compartment according to an embodiment of the present invention;
FIG. 6 is a flowchart of a method of controlling a refrigerator provided with a magnetic field fresh food compartment to adjust a fresh food damper and a refrigeration damper according to an embodiment of the present invention; and
fig. 7 is a flowchart of a method of controlling a fan in a refrigerator provided with a magnetic field fresh keeping compartment according to an embodiment of the present invention.
Detailed Description
It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention, and the some embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present invention, shall still fall within the scope of protection of the present invention.
It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "primary," and "secondary" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
The present embodiment provides a refrigerator 10 provided with a magnetic field fresh keeping compartment. The refrigerator of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of a storage compartment of a refrigerator 10 provided with a magnetic field fresh compartment according to one embodiment of the invention; fig. 2 is an internal side sectional view of a refrigerator 10 provided with a magnetic field fresh food compartment according to one embodiment of the invention. The refrigerator 10 may include: a case 101 and a door 102. The box 101 may define at least one storage compartment, typically a plurality of storage compartments, such as a refrigeration compartment 12, a freezer compartment 13, a magnetic field fresh compartment 20, etc., open at a front side. The number and function of particular storage compartments may be configured according to the needs in advance. The number and function of particular storage compartments may be configured according to the needs in advance, and in some embodiments, the storage temperature of the refrigerated compartment 12 may be 2-9 ℃, or may be 4-7 ℃; the storage temperature of the freezing compartment 13 may be-22 to-14 ℃, or may be-20 to 16 ℃. The set temperature of the magnetic field fresh-keeping compartment 20 can be set to-1.0 to-3.0 ℃ to store proper foods, so that the juice loss rate is reduced, the microorganism and bacteria amount is reduced, and the high-quality storage time is prolonged under the condition that the stored matters are prevented from freezing.
The locations and positions of the storage compartments shown in the above figures are merely examples, and can be adjusted as required by those skilled in the art.
The refrigerator 10 uses an air-cooled cooling mode to cool the storage compartments. I.e. a cooling air duct 123 is provided in the cabinet 101. The cooling air duct 123 extends from the freezing compartment 13 to the magnetic field fresh compartment 20, and a fresh air door 133 is provided at a position leading to the magnetic field fresh compartment 20. The portion of the cooling air duct 123 located inside the freezer compartment 13 is provided with an evaporator 141 and a fan 142, the fan 142 being arranged to promote a flow of cooling air through the evaporator 141 and to the freezer compartment 13 and/or the magnetic field fresh compartment 20.
In the case where the refrigerator 10 is further provided with the refrigerating compartment 12, the cooling air duct 123 is also configured to extend from the freezing compartment 13 to the refrigerating compartment 12, and a portion of the cooling air duct 123 leading to the refrigerating compartment 12 is provided with the refrigerating damper 134.
The fan 142 provides power for the airflow flowing in the refrigerating air duct 123, and can supply air to the refrigerating compartment 12, the freezing compartment 13 and the magnetic field fresh-keeping compartment 20 at the same time. The fresh air door 133 is used for adjusting the on/off of the refrigerating air flow of the magnetic field fresh air compartment 20, and the refrigerating air door 134 is used for adjusting the on/off of the refrigerating air flow of the refrigerating compartment 12. The blower 142, the fresh air door 133, and the refrigeration door 134 are controllable to open and close, so that the refrigeration airflow meets the refrigeration requirement of the refrigerator 10. The fan 142 supplies air to the compartments, and the fresh air door 133 and the refrigeration air door 134 are utilized to switch air flow, so that air path components are reduced, and the space occupied by the refrigeration air duct 123 is saved.
The refrigerating compartment 12, the freezing compartment 13 and the magnetic field fresh-keeping compartment 20 are respectively provided with an air supply opening and an air return opening which are communicated with the refrigerating air duct 123, after the refrigerating air flow is blown into the corresponding compartment from the air supply opening 22, the refrigerating air flow returns to the refrigerating air duct 123 from the air return opening to exchange heat with the evaporator 141 again after refrigerating the compartment, and the refrigerating air flow circulation is completed. The refrigerating compartment 12 has a refrigerating air supply port 122, and the magnetic field fresh compartment 20 has a fresh air supply port 22 and a fresh air return port 23.
The magnetic field fresh-keeping compartment 20 can be provided with an air flow passage surrounding the inner space, and the air flow passage is communicated with the air supply opening 22 and the air return opening 23 of the magnetic field fresh-keeping compartment 20, so that on one hand, the refrigeration and the temperature reduction of the magnetic field fresh-keeping compartment 20 are realized, and the inner temperature is stabilized within a set fresh-keeping temperature range; on the other hand, the temperature of each area of the magnetic field fresh keeping compartment 20 can be uniform.
Fig. 3 is a schematic view of a magnetic field fresh food compartment 20 in a refrigerator 10 provided with a magnetic field fresh food compartment according to an embodiment of the invention.
The magnetic field preservation compartment 20 may be provided as a drawer, for example, the magnetic field preservation compartment 20 may include a tub 25, a drawer 24. The rear part of the tub 25 forms an air supply port 22 and an air return port 23 communicating with the cooling duct 123. The drawer 24 is drawably disposed in the barrel 25, and defines a fresh-keeping space therein, that is, the fresh-keeping space in the drawer 24 can be controlled by a magnetic field and temperature, so as to realize a magnetic field fresh-keeping function.
The magnetic field fresh food compartment 20 is configured to form a surrounding air duct that flows from the air supply opening 22 through the top wall of the tub 25, the front baffle of the drawer 24, and the space below the bottom plate of the drawer 24 back to the air return opening 23 in this order. The fresh air supply port 22 surrounding the air channel at the rear end of the top of the magnetic field fresh-keeping compartment 20 enters the magnetic field fresh-keeping compartment 20, passes through the top wall of the barrel body 25, enters the top end of the front baffle of the drawer 24, passes through the front baffle of the drawer 24, enters the space below the bottom plate of the drawer 24 from the bottom, and returns to the fresh air return port 23 positioned at the rear wall of the barrel body 25 to complete the airflow circulation. That is, an air duct interlayer is arranged in the front baffle of the drawer 24, and air supply is realized at the front end of the magnetic field preservation chamber 20 by using the air duct interlayer. The surrounding air duct can uniformly cool the interior of the magnetic field fresh-keeping compartment 20 and take away the heat of the magnetic field assembly 30.
The magnetic field fresh keeping compartment 20 may use an electromagnetic assembly as the magnetic field element, or may use a permanent magnet as the magnetic field element. For example, an electromagnetic coil is matched with a magnetic conduction plate to form an electromagnetic plate, or a magnetic plate made of a permanent magnet. In addition, the magnetic field assembly can also use electromagnetic coils and permanent magnets to generate a magnetic field in a matching way.
In some embodiments, the magnetic assembly may include two oppositely disposed magnetic plates, such as top and bottom walls, disposed in the magnetic field strength compartment 20, and the magnetic fields of the magnetic plates may be oriented in the same direction to create a uniform magnetic field within the magnetic field strength compartment that is uniform and has a strength that meets the strength of the freshness requirements.
In some embodiments, the magnetic field assembly may further comprise a magnetic tape. The magnetic strips are used to connect the oppositely disposed magnetic plates to form an annular magnetic path for the drawer 24. The annular magnetic conduction passage can be made of a material with low coercive force and high magnetic conductivity, and the formed magnetic conduction passage can be used for gathering magnetic fields, so that the uniformity of the magnetic fields in the storage space is improved, the release of the magnetic fields to the outside can be reduced, and the interference to other components outside the magnetic field preservation chamber 20 (such as avoiding magnetization of other components) is reduced.
Fig. 4 is a system block diagram of a control assembly of the refrigerator 10 provided with a magnetic field fresh food compartment according to one embodiment of the present invention. The controller 17 includes a memory 172 and a processor 171, wherein the memory 172 stores a machine executable program 173, and the machine executable program 173 when executed by the processor 171 implements the control method of the refrigerator provided with the magnetic field fresh keeping compartment of the present embodiment.
The controller 17 is in signal connection with the refrigerating system, the fan 142, the fresh air door 133 and the refrigeration air door 134, and is used for providing control signals for controlling the opening and closing of the fan 142, the fresh air door 133 and the refrigeration air door 134, so as to adjust refrigeration. The controller 17 may be integrated on a main control board of the refrigerator 10.
The controller 17 may be implemented by various devices having certain data processing capabilities, and in a typical configuration, the controller 17 may further include an input/output interface to obtain an external detection signal such as the temperature of the storage room as a control basis. Temperature detection components such as temperature sensors are respectively arranged in the storage compartments, so that the internal temperature of the storage compartments is obtained. The controller 17 is in signal connection with these temperature detecting means to obtain the required temperature parameters.
It should be noted that the logic and/or steps represented in the flow chart below and otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device, and execute the instructions.
More specific examples of memory 172 include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM).
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in the memory 172 and executed by a suitable instruction execution system.
Furthermore, it should be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order of description, but are not necessarily performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those of ordinary skill in the art that all or any of the steps or components of the methods and apparatus of the present invention may be implemented in hardware, firmware, software, or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, as would be apparent to one of ordinary skill in the art after reading this description of the invention.
The present embodiment also provides a control method of the refrigerator 10 provided with the magnetic field fresh keeping compartment, and fig. 5 is a schematic diagram of a control method of the refrigerator provided with the magnetic field fresh keeping compartment according to an embodiment of the present invention.
The control method of the refrigerator provided with the magnetic field fresh-keeping compartment generally may include:
step S502, after the refrigerator starts refrigeration, the temperature of the magnetic field fresh-keeping compartment is obtained.
Step S504, controlling the opening and closing of the fresh-keeping air door according to the temperature of the magnetic field fresh-keeping chamber.
In step S506, the temperature of the evaporator is obtained when the fresh air door is in an open state. The temperature of the evaporator may be measured by a temperature detecting device provided at the evaporator.
Step S508, controlling the operation mode of the fan according to the temperature of the evaporator. The step may include determining whether the temperature of the evaporator is greater than or equal to a preset first temperature threshold; if yes, controlling the fan to be continuously started; judging whether the temperature of the evaporator is smaller than a preset first temperature threshold value and larger than or equal to a preset second temperature threshold value; if yes, controlling the fans to be started at intervals. The first temperature threshold and the second temperature threshold can be set according to the normal working temperature state of the evaporator and the storage requirement of the magnetic field fresh-keeping device, and the first temperature threshold is set to be larger than the second temperature threshold, for example, the first temperature threshold can be set to be-15 ℃ and the second temperature threshold can be set to be-20 ℃.
Under the condition that the fans are started at intervals, the start-stop ratio of the fans is correspondingly reduced along with the reduction of the temperature of the evaporator. Alternatively, the start-stop ratio of the blower may also be set to a fixed value, for example, 1 minute on, 1 minute off.
And closing the fresh-keeping air door and controlling the fan to be continuously opened under the condition that the temperature of the evaporator is smaller than the second temperature threshold value.
The working principle of the fan is as follows: if the temperature of the evaporator is too low, the temperature of the refrigerating air flow sent into the magnetic field fresh-keeping compartment is too low, and the stored matters in the magnetic field fresh-keeping compartment are possibly frozen, so that the fan is started at intervals to avoid the too low temperature of the refrigerating air flow sent into the magnetic field fresh-keeping compartment under the condition that the temperature of the evaporator is reduced to a certain temperature range. If the temperature of the evaporator is continuously reduced, the freezing inside the magnetic field fresh-keeping chamber is prevented by closing the fresh-keeping air door. The control mode of the fan can also avoid influencing the refrigeration of the refrigerating compartment and the freezing compartment as much as possible.
For the control of the refrigerating compartment, the temperature of the refrigerating compartment can be obtained after the refrigerator starts refrigerating; and controlling the opening and closing of the refrigerating air door according to the temperature of the refrigerating compartment.
The step of controlling the opening and closing of the fresh-keeping air door according to the temperature of the magnetic field fresh-keeping chamber comprises the following steps: controlling a fresh-keeping air door to open under the condition that the temperature of the magnetic field fresh-keeping compartment is greater than or equal to the preset fresh-keeping refrigeration starting temperature; and under the condition that the temperature of the magnetic field fresh-keeping compartment is less than or equal to the preset fresh-keeping refrigeration shutdown temperature, the fresh-keeping air door is controlled to be closed.
The step of controlling the opening and closing of the refrigerating damper according to the temperature of the refrigerating compartment comprises the following steps: controlling a refrigeration air door to be opened under the condition that the temperature of the refrigeration compartment is larger than or equal to the preset refrigeration starting temperature; and controlling the refrigeration air door to be closed under the condition that the temperature of the refrigeration compartment is less than or equal to the preset refrigeration shutdown temperature.
Through the control mode, the temperatures of the magnetic field fresh-keeping compartment and the refrigerating compartment can be ensured to be always in respective specified ranges, and the requirement of storage temperature is met.
Further, under the state that the fresh-keeping air door and the fresh-keeping air door are both opened, the cooling speed of the magnetic field fresh-keeping compartment and the cooling speed of the fresh-keeping compartment are obtained; and when the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigeration compartment exceeds a set threshold value, controlling the fresh-keeping air door to be opened at intervals. The start-stop ratio of the fresh-keeping air door is correspondingly reduced along with the increase of the proportion that the cooling speed of the magnetic field fresh-keeping compartment exceeds the cooling speed of the refrigeration compartment.
Another alternative adjustment scheme is: the opening of the fresh-keeping air door is adjustable, and the cooling speed of the magnetic field fresh-keeping compartment and the cooling speed of the refrigeration compartment are obtained when the fresh-keeping air door and the refrigeration air door are both in an opened state; when the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigerating compartment exceeds a set threshold, the opening of the fresh-keeping air door is reduced, and the opening of the fresh-keeping air door is correspondingly reduced along with the increase of the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigerating compartment.
The working principle of the control mode is as follows: the magnetic field fresh-keeping compartment and the refrigerating compartment are ensured to be simultaneously cooled by air-out as much as possible, and under the condition that the refrigerating compartment is cooled, the evaporator is influenced by the cooling return air, and the temperature of the evaporator is relatively high, so that the temperature of the refrigerating air flow of the magnetic field fresh-keeping compartment is correspondingly increased, and when the refrigerating air door is closed, the air flow circulation of the refrigerating compartment is stopped, the temperature of the evaporator is correspondingly reduced, and at the moment, the temperature of the magnetic field fresh-keeping compartment is correspondingly reduced. Therefore, in order to avoid freezing of the stored matters in the magnetic field safe room, the magnetic field fresh-keeping room and the refrigeration room can be ensured to simultaneously discharge air for refrigeration by adjusting the refrigeration air door and the fresh-keeping air door. In the case of refrigerating the refrigerating compartment by testing the refrigerator applying the embodiment, the evaporator is about-15 ℃; when the refrigerating air door is closed, the air flow circulation of the refrigerating compartment is stopped, the temperature of the evaporator can be reduced from-15 ℃ to below-20 ℃, and the stored matters avoided in the compartment near the magnetic field preservation compartment are likely to be frozen.
Fig. 6 is a flowchart of a flow of adjusting a fresh food damper and a refrigeration damper in a control method of a refrigerator provided with a magnetic field fresh food compartment according to an embodiment of the present invention. The process of adjusting the air door comprises the following steps:
step S602, starting a refrigerator compressor and starting a fan;
step S604, obtaining the temperature T-c of the magnetic field fresh-keeping compartment and the temperature T-r of the refrigeration compartment;
step S606, judging whether T-r is greater than or equal to the refrigeration starting temperature T-ron, namely whether T-r is greater than or equal to T-ron is met;
step S608, opening a refrigeration air door;
step S610, judging whether T-c is greater than or equal to the fresh-keeping refrigeration starting temperature T-con, namely whether T-c is greater than or equal to T-con;
step S612, opening a fresh-keeping air door;
step S614, judging whether T-r is smaller than the refrigerating shutdown temperature T-roff, namely whether T-r is smaller than or equal to T-roff is met;
step S616, closing the refrigeration damper;
step S618, judging whether T-c is less than or equal to the fresh-keeping refrigeration shutdown temperature T-coff, namely whether T-c is less than or equal to T-coff is met;
step S620, closing the fresh-keeping air door.
In step S622, the refrigeration temperature control of the refrigeration compartment is performed.
Fig. 7 is a flowchart of a method of controlling a fan in a refrigerator provided with a magnetic field fresh keeping compartment according to an embodiment of the present invention. The flow of the fan comprises the following steps:
step S702, a fresh-keeping air door is opened, and a magnetic field fresh-keeping compartment is opened for air supply and refrigeration;
step S704, obtaining the temperature T-def of the evaporator;
step S706, judging whether T-def is larger than or equal to a first temperature threshold T-d1, namely whether T-def is larger than or equal to T-d1 is met;
step S708, controlling the fan to be continuously started;
step S710, judging whether T-def is smaller than a first temperature threshold T-d1 and larger than or equal to a preset second temperature threshold T-d2, namely whether T-d1> T-def is larger than or equal to T-d 2;
step S712, controlling the interval start of fans;
step S714, judging whether T-def is smaller than the second temperature threshold T-d2, i.e. whether T-d2> T-def is true;
step S716, the fresh air door is closed, and the refrigerating compartment and/or the freezing compartment are/is cooled.
The first temperature threshold T-d1 and the second temperature threshold T-d2 may be set according to a temperature state of normal operation of the evaporator and a storage requirement of the magnetic field preservation device, and in a specific embodiment, for example, T-d1 may be set to-15 degrees celsius, and T-d2 may be set to-20 degrees celsius. The fan interval on can be set to be on for 1 minute and off for 1 minute.
The flow of the fan is regulated, so that the air supply temperature of the refrigerating air flow of the magnetic field fresh-keeping compartment can be effectively prevented from being too low, and stored objects can be prevented from being frozen, and the fresh-keeping storage quality is improved.
Thus far, the technical solution of the present invention has been described in connection with the foregoing embodiments, but it will be readily understood by those skilled in the art that the scope of the present invention is not limited to only these specific embodiments. The technical solutions in the above embodiments can be split and combined by those skilled in the art without departing from the technical principles of the present invention, and equivalent changes or substitutions can be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical principles and/or technical concepts of the present invention will fall within the protection scope of the present invention.
Claims (10)
1. The refrigerator comprises a refrigerator body and a refrigerating air duct arranged in the refrigerator body, wherein a freezing compartment and a magnetic field preservation compartment are defined in the refrigerator body, the refrigerating air duct extends from the freezing compartment to the magnetic field preservation compartment, and a preservation air door is arranged at a position leading to the magnetic field preservation compartment; an evaporator and a fan are arranged inside the part of the refrigeration air duct, which is positioned in the refrigeration compartment, the fan is used for promoting the formation of refrigeration air flow which flows through the evaporator and is supplied to the refrigeration compartment and/or the magnetic field fresh-keeping compartment, and the control method comprises the following steps:
after the refrigerator starts refrigerating, acquiring the temperature of the magnetic field fresh-keeping compartment;
controlling the opening and closing of the fresh-keeping air door according to the temperature of the magnetic field fresh-keeping compartment;
acquiring the temperature of the evaporator when the fresh-keeping air door is in an open state;
and controlling the operation mode of the fan according to the temperature of the evaporator.
2. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 1, wherein the step of controlling an operation mode of the blower according to the temperature of the evaporator comprises:
judging whether the temperature of the evaporator is greater than or equal to a preset first temperature threshold value;
if yes, controlling the fan to be continuously started;
judging whether the temperature of the evaporator is smaller than a preset first temperature threshold value and larger than or equal to a preset second temperature threshold value;
if yes, controlling the fan to be started at intervals.
3. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 2, wherein the step of controlling the operation mode of the blower according to the temperature of the evaporator further comprises:
and closing the fresh-keeping air door and controlling the fan to be continuously opened under the condition that the temperature of the evaporator is smaller than the second temperature threshold value.
4. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 2, wherein,
the start-stop ratio of the fan is correspondingly reduced along with the reduction of the temperature of the evaporator.
5. The control method of a refrigerator provided with a magnetic field fresh-keeping compartment according to claim 1, wherein a refrigerating compartment is further defined in the refrigerator body, the cooling air duct is further configured to extend from the freezing compartment to the refrigerating compartment, and a portion of the cooling air duct leading to the refrigerating compartment is provided with a cooling damper, and the control method further comprises, after the refrigerator starts cooling:
acquiring the temperature of the refrigerating compartment;
and controlling the opening and closing of the refrigeration air door according to the temperature of the refrigeration compartment.
6. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 5, wherein
The step of controlling the opening and closing of the fresh-keeping air door according to the temperature of the magnetic field fresh-keeping compartment comprises the following steps: controlling the fresh-keeping air door to open under the condition that the temperature of the magnetic field fresh-keeping compartment is greater than or equal to the preset fresh-keeping refrigeration starting temperature; and controlling the fresh-keeping air door to be closed under the condition that the temperature of the magnetic field fresh-keeping compartment is less than or equal to the preset fresh-keeping refrigeration shutdown temperature;
the step of controlling the opening and closing of the refrigerating damper according to the temperature of the refrigerating compartment comprises the following steps: controlling the opening of the refrigeration air door under the condition that the temperature of the refrigeration compartment is more than or equal to the preset refrigeration starting temperature; and controlling the refrigeration air door to be closed under the condition that the temperature of the refrigeration compartment is less than or equal to the preset refrigeration shutdown temperature.
7. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 6, wherein
Acquiring the cooling speed of the magnetic field fresh-keeping compartment and the cooling speed of the refrigeration compartment under the state that the fresh-keeping air door and the refrigeration air door are both opened;
and when the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigeration compartment exceeds a set threshold, controlling the fresh-keeping air door to be opened at intervals.
8. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 7, wherein
The start-stop ratio of the fresh-keeping air door is correspondingly reduced along with the increase of the proportion that the cooling speed of the magnetic field fresh-keeping compartment exceeds the cooling speed of the refrigeration compartment.
9. The control method of a refrigerator provided with a magnetic field fresh keeping compartment according to claim 6, wherein
The opening of the fresh-keeping air door is adjustable, and the cooling speed of the magnetic field fresh-keeping compartment and the cooling speed of the refrigeration compartment are obtained when the fresh-keeping air door and the refrigeration air door are both in an opened state;
and when the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigerating compartment exceeds a set threshold value, reducing the opening of the fresh-keeping air door, and correspondingly reducing the opening of the fresh-keeping air door along with the increase of the proportion of the cooling speed of the magnetic field fresh-keeping compartment exceeding the cooling speed of the refrigerating compartment.
10. A refrigerator with a magnetic field fresh-keeping compartment comprises a refrigerator body and a refrigerating air duct arranged in the refrigerator body, wherein,
at least a freezing compartment and a magnetic field fresh-keeping compartment are defined in the box body,
the refrigerating air duct extends from the freezing compartment to the magnetic field fresh-keeping compartment, and a fresh-keeping air door is arranged at the position leading to the magnetic field fresh-keeping compartment;
an evaporator and a fan are arranged in the part of the refrigeration air duct, which is positioned in the refrigeration compartment, and the fan is used for promoting the formation of refrigeration air flow which flows through the evaporator and is supplied to the refrigeration compartment and/or the magnetic field fresh-keeping compartment;
a controller comprising a memory and a processor, wherein the memory stores a machine executable program which when executed by the processor implements the control method of a refrigerator provided with a magnetic field fresh keeping compartment according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625229.9A CN117213142A (en) | 2022-06-02 | 2022-06-02 | Refrigerator with magnetic field fresh-keeping compartment and control method thereof |
| PCT/CN2023/096890 WO2023231979A1 (en) | 2022-06-02 | 2023-05-29 | Refrigerator provided with magnetic field freshness-preserving compartment and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625229.9A CN117213142A (en) | 2022-06-02 | 2022-06-02 | Refrigerator with magnetic field fresh-keeping compartment and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117213142A true CN117213142A (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210625229.9A Pending CN117213142A (en) | 2022-06-02 | 2022-06-02 | Refrigerator with magnetic field fresh-keeping compartment and control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117213142A (en) |
| WO (1) | WO2023231979A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050063258A (en) * | 2003-12-22 | 2005-06-28 | 엘지전자 주식회사 | Method for control operation of pan in refrigerator |
| CN105783408A (en) * | 2014-12-23 | 2016-07-20 | 海信（山东）冰箱有限公司 | Air-cooled refrigerator and control method thereof |
| CN106524635B (en) * | 2016-10-31 | 2018-09-21 | 天津大学 | A kind of refrigerator with electromagnetic field auxiliary fresh keeping property |
-
2022
- 2022-06-02 CN CN202210625229.9A patent/CN117213142A/en active Pending
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2023
- 2023-05-29 WO PCT/CN2023/096890 patent/WO2023231979A1/en unknown
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| WO2023231979A1 (en) | 2023-12-07 |
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