CN114427774A - Refrigerator and temperature control method of warm-keeping drawer of refrigerator - Google Patents
Refrigerator and temperature control method of warm-keeping drawer of refrigerator Download PDFInfo
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- CN114427774A CN114427774A CN202210076880.5A CN202210076880A CN114427774A CN 114427774 A CN114427774 A CN 114427774A CN 202210076880 A CN202210076880 A CN 202210076880A CN 114427774 A CN114427774 A CN 114427774A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005485 electric heating Methods 0.000 claims abstract description 93
- 238000005057 refrigeration Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 abstract description 22
- 238000009833 condensation Methods 0.000 abstract description 11
- 230000005494 condensation Effects 0.000 abstract description 11
- 235000013305 food Nutrition 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011555 saturated liquid Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- 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
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—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
- 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
- F25D2700/12—Sensors measuring the inside temperature
-
- 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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigerator and a temperature control method of a warm-keeping drawer thereof. Determining a temperature compensation mode for the warm-storage drawer according to the real-time temperature and the preset target temperature of the warm-storage drawer and the working state of a compressor in the refrigerator, wherein when the compressor is in a starting state, the heat generated by condensation in a refrigerating system can be fully utilized, and meanwhile, the warm-storage drawer is subjected to temperature compensation under the action of a warm-storage fan; when the compressor is in a shutdown state, the electric heating wire is used for compensation heating, so that the temperature of the warm-keeping drawer is kept at a target temperature, and the warm-keeping requirement of food with high temperature requirement is met.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a temperature control method for a warm storage drawer of the refrigerator.
Background
Traditional refrigerator refrigeration mode is pure refrigeration mode on the existing market, and refrigerator refrigerating system has contained: the refrigerator comprises a compressor, a condenser, a capillary tube, an evaporator and an air return pipe, and is combined into a single-system refrigerator, a double-system refrigerator, a multi-system refrigerator, a two-door refrigerator, a three-door refrigerator and a multi-door refrigerator in parallel connection and other modes. In a refrigeration system of a refrigerator, a compressor is connected with a discharge port of a condenser to output gas with high temperature and high pressure, and the high temperature is redundant to the refrigeration system of the refrigerator and is generally consumed in a mode of enhancing heat transfer so as to be beneficial to the refrigeration system. The traditional household refrigerator only utilizes the refrigeration function of the refrigeration system to cool and preserve the object in the freezing or refrigerating chamber, the utilization of the heating function of the refrigeration system is less, the heat generated by condensation in the refrigeration system of the refrigerator is not fully utilized, and the energy waste is caused.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and a temperature control method of a warm-keeping drawer of the refrigerator.
To achieve the above object, an embodiment of the present invention provides a refrigerator, including:
the warm-keeping drawer is arranged on one side of a condenser in the refrigerating system and comprises a warm-keeping accommodating cavity, a drawer main body, a warm-keeping fan and electric heating wires, wherein the warm-keeping fan is arranged between the condenser and the drawer main body, and the electric heating wires are arranged on at least one of the side surface, the bottom and the top of the warm-keeping accommodating cavity;
the controller is configured to:
acquiring the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in the refrigeration system;
and controlling the working mode of the warm-storage fan and the working state and power of the electric heating wire according to the working state of the compressor and the comparison result of the real-time temperature and the target temperature.
As an improvement of the above solution, the refrigerator is provided with an air outlet at a side of the condenser away from the warm-keeping drawer, and when the compressor is in an on state, the controller is further configured to:
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is less than a preset highest temperature threshold value, closing the warm-storage fan and closing the air outlet;
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is greater than or equal to a preset highest temperature threshold value, closing the warm air storage fan and opening the air outlet;
and when the real-time temperature is lower than the target temperature, the warm air storage fan is started and the air outlet is closed.
As an improvement of the above, when the compressor is in the on state, the controller is further configured to:
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is smaller than a preset first temperature difference threshold value, controlling the warm-storage fan to stop working;
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset first temperature difference threshold value, controlling the warm air blower to work in an air draft mode so as to enable the heat of the condenser to be far away from the warm air storage drawer;
when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is lower than a preset second temperature difference threshold value, controlling the warm air blower to work in an air supply mode so as to transfer the heat of the condenser to the warm air storage drawer;
and when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode and starting the electric heating wire.
As an improvement of the above, when the compressor is in a shutdown state, the controller is further configured to:
when the real-time temperature is greater than or equal to the target temperature, controlling the electric heating wire to keep a closed state;
and when the real-time temperature is lower than the target temperature, opening the electric heating wire, and controlling the power of the electric heating wire according to the difference value of the real-time temperature and the target temperature.
As an improvement of the above solution, the controlling the power of the electric heating wire according to the difference between the real-time temperature and the target temperature includes:
determining a target temperature difference grade of the difference value between the real-time temperature and the target temperature in a plurality of preset temperature difference grades; each temperature difference grade corresponds to the power of the electric heating wire, and the temperature value in the temperature grade is in direct proportion to the power of the electric heating wire;
acquiring corresponding target power of the electric heating wire according to the target temperature difference grade;
and controlling the electric heating wire to work according to the target power.
As an improvement of the above scheme, a warm air door is arranged in the warm drawer, the warm air door is arranged between the drawer main body and the warm air blower, the warm air door is closed along with the shutdown of the warm air blower, and the warm air blower is opened along with the startup of the warm air blower.
In order to achieve the above object, an embodiment of the present invention further provides a temperature control method for a warm-keeping drawer of a refrigerator, wherein the warm-keeping drawer is disposed on one side of a condenser in a refrigeration system, and includes a warm-keeping accommodating cavity, a drawer main body, a warm-keeping blower and electric heating wires, wherein the warm-keeping blower is disposed between the condenser and the drawer main body, and the electric heating wires are disposed on at least one of a side surface, a bottom portion and a top portion of the warm-keeping accommodating cavity; then, the temperature control method includes:
acquiring the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in the refrigeration system;
and controlling the working mode of the warm-storage fan and the working state and power of the electric heating wire according to the working state of the compressor and the comparison result of the real-time temperature and the target temperature.
As an improvement of the above scheme, the refrigerator is provided with an air outlet at a side of the condenser away from the warm-keeping drawer, and when the compressor is in an on state, the method further comprises:
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is smaller than a preset highest temperature threshold value, closing the warm air storage fan and closing the air outlet;
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is greater than or equal to a preset highest temperature threshold value, closing the warm-storage fan and opening the air outlet;
and when the real-time temperature is lower than the target temperature, the warm air storage fan is started and the air outlet is closed.
As an improvement of the above, when the compressor is in the on state, the method further includes:
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is smaller than a preset first temperature difference threshold value, controlling the warm-storage fan to stop working;
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset first temperature difference threshold value, controlling the warm-keeping fan to work in an air draft mode so as to enable the heat of the condenser to be far away from the warm-keeping drawer;
when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is lower than a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode so as to transfer the heat of the condenser to the warm-storage drawer;
and when the real-time temperature is less than the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset second temperature difference threshold value, controlling the warm air storage fan to work in an air supply mode and starting the electric heating wire.
As an improvement of the above, when the compressor is in a shutdown state, the method further includes:
when the real-time temperature is greater than or equal to the target temperature, controlling the electric heating wire to keep a closed state;
and when the real-time temperature is lower than the target temperature, the electric heating wire is started, and the power of the electric heating wire is controlled according to the difference value between the real-time temperature and the target temperature.
Compared with the prior art, the refrigerator and the temperature control method of the warm-keeping drawer thereof disclosed by the embodiment of the invention have the advantages that the warm-keeping drawer with the heat preservation function is arranged in the refrigerator, and comprises the warm-keeping accommodating cavity, the drawer main body, the warm-keeping fan and the electric heating wire. Determining a temperature compensation mode for the warm-storage drawer according to the real-time temperature and the preset target temperature of the warm-storage drawer and the working state of a compressor in the refrigerator, wherein when the compressor is in a starting state, the heat generated by condensation in a refrigerating system can be fully utilized, and meanwhile, the warm-storage drawer is subjected to temperature compensation under the action of a warm-storage fan; when the compressor is in a shutdown state, the electric heating wire is used for compensation heating, so that the temperature of the warm-keeping drawer is kept at a target temperature, and the warm-keeping requirement of food with high temperature requirement is met.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a warm-keeping drawer according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a warm keeping body in the warm keeping drawer according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a warm keeping drawer provided by an embodiment of the present invention;
fig. 5 is a partially enlarged view of a warm keeping drawer 10a according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a method for controlling a temperature of a warm-up drawer of a refrigerator according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a method for controlling the temperature of the warm-keeping drawer when the compressor is in the on state according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating another method for controlling the temperature of a warm-keeping drawer when a compressor is in an ON state according to an embodiment of the present invention;
FIG. 9 is a flowchart of a method for controlling the temperature of a warm-keeping drawer when a compressor is in a shutdown state according to an embodiment of the present invention;
fig. 10 is a flowchart for obtaining the target power of the electric heating wire according to the embodiment of the present invention.
100, a refrigerator; 10. the drawer is stored in a warm mode; 20 a controller; 30. a condenser; 10a, a local enlargement area; 101. a warm storage accommodating cavity; 102. a drawer main body; 103. a warm-keeping fan; 104. an electric heating wire; 105. warming and storing an air door; 106. and an air return duct.
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.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a refrigerator 100 according to an embodiment of the present invention, where the refrigerator 100 includes a warm-keeping drawer 10 and a controller 20, the warm-keeping drawer 10 is used for storing food materials with high temperature requirements or thawing frozen food materials, and the controller 20 is used for controlling an operation process of the warm-keeping drawer 10.
Further, the refrigeration system of the refrigerator 100 according to the embodiment of the present invention is composed of a compressor, a condenser, a dry filter, a capillary tube, and an evaporator, and the operation process of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process.
Wherein, the compression process is as follows: the power cord of the refrigerator is plugged, and under the condition that the contact of the temperature controller is connected, the compressor starts to work, the low-temperature and low-pressure refrigerant is sucked by the compressor, and is compressed into high-temperature and high-pressure superheated gas in the cylinder of the compressor and then is discharged into the condenser; the condensation process is as follows: the high-temperature and high-pressure refrigerant gas is radiated by the condenser, the temperature is continuously reduced, the refrigerant gas is gradually cooled to be saturated vapor with normal temperature and high pressure, the refrigerant gas is further cooled to be saturated liquid, the temperature is not reduced any more, the temperature at the moment is called as the condensation temperature, and the pressure of the refrigerant in the whole condensation process is almost unchanged; the throttling process is as follows: the condensed refrigerant saturated liquid flows into a capillary tube after being filtered by a drying filter to remove moisture and impurities, throttling and pressure reduction are carried out through the capillary tube, and the refrigerant is changed into normal-temperature low-pressure wet vapor; the evaporation process is as follows: the normal temperature and low pressure wet steam starts to absorb heat to vaporize in the evaporator, which not only reduces the temperature of the evaporator and the surrounding, but also changes the refrigerant into low temperature and low pressure gas, the refrigerant from the evaporator returns to the compressor again, and repeats the above processes to transfer the heat in the refrigerator to the air outside the refrigerator, thereby achieving the purpose of refrigeration.
Referring to fig. 2, fig. 2 is a schematic structural view of a warm keeping drawer 10 according to an embodiment of the present invention, where the warm keeping drawer 10 includes at least one warm keeping accommodating cavity 101 and a drawer main body 102 disposed in each warm keeping accommodating cavity 101. It should be noted that, in the embodiment of the present invention, the number of the warm-keeping drawers 10 is one, but in other embodiments, the number of the warm-keeping drawers 10 may be two, and the present invention is not limited in this respect. It can be understood that, when the two warm-keeping drawers 10 are provided, the temperatures in the two drawer main bodies 102 can be controlled individually or collectively by the controller 20, and each warm-keeping drawer 10 is provided with a warm-keeping fan and an electric heating wire respectively, so that the independent temperature control of the controller 20 can be realized.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a drawer main body 102 in the warm-keeping drawer 10 according to an embodiment of the present invention, a notch is provided in the drawer main body 102 on a side opposite to a drawer door, and the notch is used for ventilation, and heat dissipated by a condenser can enter the drawer main body 102 through the notch. Sliding rails are respectively arranged below two sides of the drawer main body 102, correspond to the sliding rails arranged below the warm storage accommodating cavity 101, and can drag the drawer main body 102 in a push-pull mode.
Referring to fig. 4 to 5, fig. 4 is a sectional view of a warm keeping drawer 10 according to an embodiment of the present invention; fig. 5 is a partially enlarged view of a portion 10a of the warm-keeping drawer 10 in fig. 4 according to an embodiment of the present invention, the warm-keeping drawer 10 is disposed at one side of a condenser 30 in a refrigeration system, the warm-keeping drawer 10 includes a warm-keeping accommodating chamber 101, a drawer main body 102, a warm-keeping blower 103, and electric heating wires 104, wherein the warm-keeping blower 103 is disposed between the condenser 30 and the drawer main body 102, the electric heating wires 104 are disposed at least one of a side, a bottom, and a top of the warm-keeping accommodating chamber 101, and the electric heating wires 104 are disposed at the bottom of the warm-keeping accommodating chamber 101 in fig. 5.
Further, the warm-keeping drawer 10 further includes a warm-keeping air door 105 and a return air duct 106, the warm-keeping air door 105 is disposed between the drawer main body 102 and the warm-keeping fan 103, the warm-keeping air door 105 is closed along with the shutdown of the warm-keeping fan 103, and the warm-keeping fan 103 is opened along with the startup of the warm-keeping fan 103. The warm air door 105 and the return air duct 106 constitute a gas passage so that warm air can flow in the warm drawer 10.
Further, the warm-air drawer 10 is further provided with an air purification device (not shown), which may contain activated carbon, and is provided at one side of the warm-air blower 103.
The controller 20 is configured to:
acquiring the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in the refrigeration system;
and controlling the working mode of the warm air storage fan and the working state and power of the electric heating wire according to the working state of the compressor and the comparison result of the real-time temperature and the target temperature.
Illustratively, the target temperature is a temperature set by a user or a system-defined temperature (e.g., 19 ℃), when the refrigerator starts to operate, the warm-up drawer 10 starts to operate at the system-defined temperature, the warm-up fan 103 starts to operate by default, and the warm-up damper 105 is opened. Determining a temperature compensation mode for the warm-storage drawer 10 according to the real-time temperature and the preset target temperature of the warm-storage drawer 10 and the working state of a compressor in the refrigerator, wherein when the compressor is in a starting state, heat generated by condensation in a refrigerating system can be fully utilized, and meanwhile, the warm-storage drawer 10 is subjected to temperature compensation under the action of a warm-storage fan 103; when the compressor is in a shutdown state, the electric heating wire 104 is used for compensation heating, so that the temperature of the warming drawer 10 is kept at a target temperature, and the warming requirement of food with high temperature requirement is met.
Alternatively, when the compressor is in the on state, the embodiment of the present invention provides two temperature compensation modes, one is a temperature compensation mode without using the electric heating wire 104, and the other is a temperature compensation mode with using the electric heating wire 104.
In an alternative embodiment, the refrigerator is provided with an air outlet (not shown) at a side of the condenser 30 away from the warm-keeping drawer 10, and when the compressor is in the on state, the controller 20 is further configured to:
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser 30 is less than a preset maximum temperature threshold, closing the warm air storage fan 103 and closing the air outlet;
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser 30 is greater than or equal to a preset maximum temperature threshold value, closing the warm air storage fan 103 and opening the air outlet;
and when the real-time temperature is lower than the target temperature, the warm air storage fan 103 is started and the air outlet is closed.
For example, the exhaust outlet can exhaust the excessive heat, and meanwhile, fresh air can be periodically sucked into the warm storage chamber through the exhaust outlet. When the real-time temperature is greater than or equal to during the target temperature, it indicates that the heat that condenser 30 gived off is more, need not the air supply of warm-keeping fan 103 closes this moment warm-keeping fan 103 with warm-keeping air door 105, simultaneously this moment the real-time temperature is less than the highest threshold value of predetermined temperature, indicates that can be through closing warm-keeping fan 103 with warm-keeping air door 105's mode is realized warm-keeping drawer 10's cooling, so need close at this moment the air exit. When the real-time temperature is greater than or equal to the target temperature, and the temperature of the condenser is greater than or equal to the preset temperature maximum threshold value, it indicates that the heat emitted by the condenser 30 is very much, at this time, not only the warm air storage fan 103 needs to be closed, but also the air outlet needs to be opened to dissipate the heat of the condenser 30. When the real-time temperature is lower than the target temperature, which indicates that the heat emitted by the condenser 30 is needed at this time, the warm air blower 103 is turned on and the air outlet is turned off.
In another alternative embodiment, when the compressor is in the on state, the controller 20 is further configured to:
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is smaller than a preset first temperature difference threshold value, controlling the warm-storage fan to stop working;
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset first temperature difference threshold value, controlling the warm-keeping fan to work in an air draft mode so as to enable the heat of the condenser to be far away from the warm-keeping drawer;
when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is lower than a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode so as to transfer the heat of the condenser to the warm-storage drawer;
and when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode and starting the electric heating wire.
For example, the warm air blower 103 operates in an air draft mode when rotating counterclockwise, and operates in an air blowing mode when rotating clockwise, and the first temperature difference threshold and the second temperature difference threshold may be set according to specific use conditions, for example, both are set to 5 ℃, or other values, which is not specifically limited herein.
When the real-time temperature is greater than or equal to the target temperature, and the difference between the real-time temperature and the target temperature is smaller than the first temperature difference threshold value, the heat emitted by the condenser 30 is more, the air supply of the warm-keeping fan 103 is not needed, and the warm-keeping fan 103 is closed at the moment to cool the warm-keeping drawer 10. When the real-time temperature is greater than or equal to the target temperature and the difference between the real-time temperature and the target temperature is greater than or equal to the first temperature difference threshold, it indicates that the heat emitted from the condenser 30 is very much, and at this time, if only the heater blower 103 is turned off, the real-time temperature cannot be made equal to the target temperature, so that the heater blower 103 is controlled to operate in the air draft mode, so that the heat of the condenser 30 is far away from the heater drawer 10. When the real-time temperature is less than the target temperature and the difference between the real-time temperature and the target temperature is less than the second temperature difference threshold, it indicates that the heat emitted from the condenser 30 is sufficient to make the real-time temperature equal to the target temperature, and at this time, the warm-keeping fan 103 is controlled to operate in an air supply mode, so that the heat of the condenser 30 is transferred to the warm-keeping drawer 10. When the real-time temperature is lower than the target temperature and the difference between the real-time temperature and the target temperature is greater than or equal to the second temperature difference threshold, it indicates that the real-time temperature cannot be equal to the target temperature only by the air supply of the warm-air storage fan 103, and at this time, the electric heating wire 104 needs to be used for heating together. It is worth noting that the electric heating wire 104 can be operated in a low power mode to avoid the temperature of the warm-keeping drawer 10 from being too high due to too high power, and the electric heating wire 104 is turned off after the real-time temperature is equal to the target temperature.
Optionally, when the compressor is in a shutdown state, the controller 20 is further configured to:
when the real-time temperature is greater than or equal to the target temperature, controlling the electric heating wire 104 to keep a closed state;
and when the real-time temperature is lower than the target temperature, opening the electric heating wire 104, and controlling the power of the electric heating wire 104 according to the difference between the real-time temperature and the target temperature.
For example, in the case that the real-time temperature of the warm-keeping drawer 10 is greater than or equal to the target temperature just after the compressor is stopped, the electric heating wire 104 is still kept in the closed state. As the shutdown time of the compressor increases, the condenser 30 also stops working, and the real-time temperature of the warm-keeping drawer 10 gradually decreases, and when the real-time temperature is lower than the target temperature, the electric heating wire 104 is turned on for compensation heating.
Further, the controlling the power of the electric heating wire 104 according to the difference between the real-time temperature and the target temperature includes:
determining a target temperature difference grade of the difference value between the real-time temperature and the target temperature in a plurality of preset temperature difference grades; wherein each temperature difference grade corresponds to the power of the electric heating wire 104, and the temperature value in the temperature grade is in direct proportion to the power of the electric heating wire 104;
acquiring corresponding target power of the electric heating wire 104 according to the target temperature difference grade;
and controlling the electric heating wire 104 to work according to the target power.
For example, because the amount of heating required is large when the user uses the defrosting function, the electric heating wire 104 should be set to at least two different power levels (there are two corresponding temperature difference levels), and if only needs to be stored warm for auxiliary heating, the temperature difference is small, and a low-power heating wire can be used; if the user uses the unfreezing function, the temperature difference is large at the moment, and a heating wire with large power is started to perform auxiliary compensation heating.
Further, when the compressor is in a shutdown state and the electric heating wire 104 is operated, the warm air blower 103 may be started to supply air, so that warm air circulates in the warm drawer 10, and the temperature in the warm drawer 10 may be kept balanced.
Compared with the prior art, the refrigerator disclosed by the embodiment of the invention has the advantages that the warm storage drawer with the heat preservation function is arranged in the refrigerator, and the warm storage drawer comprises the warm storage accommodating cavity, the drawer main body, the warm storage fan and the electric heating wire. Determining a temperature compensation mode for the warm-storage drawer according to the real-time temperature and the preset target temperature of the warm-storage drawer and the working state of a compressor in the refrigerator, wherein when the compressor is in a starting state, the heat generated by condensation in a refrigerating system can be fully utilized, and meanwhile, the warm-storage drawer is subjected to temperature compensation under the action of a warm-storage fan; when the compressor is in a shutdown state, the electric heating wire is used for compensation heating, so that the temperature of the warm-keeping drawer is kept at a target temperature, and the warm-keeping requirement of food with high temperature requirement is met.
Referring to fig. 6, fig. 6 is a flowchart of a method for controlling a temperature of a warm-up drawer of a refrigerator, the method being implemented by a controller in the refrigerator, the method for controlling a temperature of a warm-up drawer of a refrigerator including steps S1 to S2:
s1, acquiring the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in the refrigeration system;
s2, controlling the working mode of the warm-storage fan and the working state and power of the electric heating wire according to the working state of the compressor and the comparison result of the real-time temperature and the target temperature.
The warm storage drawer comprises at least one warm storage accommodating cavity and a drawer main body arranged in each warm storage accommodating cavity. It should be noted that, in the embodiment of the present invention, the number of the warm-keeping drawers is one, but in other embodiments, the number of the warm-keeping drawers may be two, and the present invention is not limited in detail herein. It can be understood that when the drawer is hidden to the heat, the temperature in two drawer main parts can pass through controller independent control or unified control, each the drawer is hidden to the heat corresponds respectively and is provided with warm fan and electric heating wire that hides to can realize the independent accuse temperature of controller.
One side of the drawer main body opposite to the drawer door is provided with a notch, the notch is used for ventilation, and heat emitted by the condenser can enter the drawer main body through the notch. The lower parts of the two sides of the drawer main body are respectively provided with a sliding rail, the sliding rails correspond to the sliding rails arranged below the warm storage accommodating cavity, and the drawer main body can be dragged in a push-pull mode. Warm one side of hiding the condenser that the drawer was located among the refrigerating system, still including warm fan, electric heating wire, warm air door and return air wind channel of hiding, wherein, warm fan of hiding is located the condenser with between the drawer main part, electric heating wire locates warm side, bottom and the at least one position at top that holds the chamber of hiding, warm air door of hiding is located the drawer main part with warm between the fan of hiding, warm air door along with the shutdown of warm fan and closed, warm fan of hiding along with warm start of hiding the fan and open, warm air door of hiding with the return air wind channel constitutes gas passage for the warm braw can flow in the warm drawer of hiding.
Illustratively, the target temperature is a temperature set by a user or a system-defined temperature (e.g., 19 ℃), and when the refrigerator starts to operate, the warm-up drawer starts to operate at the system-defined temperature, the warm-up fan starts to operate by default, and the warm-up damper is opened. Determining a temperature compensation mode for the warm-storage drawer according to the real-time temperature and the preset target temperature of the warm-storage drawer and the working state of a compressor in the refrigerator, wherein when the compressor is in a starting state, the heat generated by condensation in a refrigerating system can be fully utilized, and meanwhile, the warm-storage drawer is subjected to temperature compensation under the action of a warm-storage fan; when the compressor is in a shutdown state, the electric heating wire is used for compensation heating, so that the temperature of the warm-keeping drawer is kept at a target temperature, and the warm-keeping requirement of food with high temperature requirement is met.
Referring to fig. 7, fig. 7 is a flowchart of a method for controlling a temperature of a warm-keeping drawer when a compressor is in an on state according to an embodiment of the present invention, where the method further includes steps S211 to S213:
s211, when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is smaller than a preset highest temperature threshold value, closing the warm air storage fan and closing the air outlet;
s212, when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is greater than or equal to a preset highest temperature threshold value, closing the warm-storage fan and opening the air outlet;
and S213, when the real-time temperature is lower than the target temperature, the warm air storage fan is started and the air outlet is closed.
For example, the refrigerator is provided with an air outlet at one side of the condenser far away from the warm-storage drawer, the air outlet can exhaust redundant heat, and meanwhile fresh air can be periodically sucked into the warm-storage chamber through the air outlet. Work as real-time temperature is more than or equal to during the target temperature, show that the heat that the condenser gived off is more, does not need the air supply of warm fan of hiding is closed this moment the warm fan of hiding with warm air door of hiding, simultaneously this moment real-time temperature is less than the highest threshold value of predetermined temperature, shows that can pass through closing the warm fan of hiding with the mode of warm air door of hiding realizes the cooling of warm drawer, so need close during this the air exit. When the real-time temperature is greater than or equal to the target temperature, and the temperature of the condenser is greater than or equal to the preset temperature maximum threshold value, the heat emitted by the condenser is very much, at the moment, the warm-keeping fan needs to be closed, and the air outlet needs to be opened to dissipate the heat of the condenser. And when the real-time temperature is lower than the target temperature, indicating that the heat emitted by the condenser is needed at the moment, and opening the warm-keeping fan and closing the air outlet at the moment.
Referring to fig. 8, fig. 8 is a flowchart of another method for controlling the temperature of a warm-keeping drawer when a compressor is in an on state according to an embodiment of the present invention, where the method further includes steps S221 to S224:
s221, when the real-time temperature is greater than or equal to the target temperature, and the difference value between the real-time temperature and the target temperature is smaller than a preset first temperature difference threshold value, controlling the warm-air storage fan to stop working;
s222, when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset first temperature difference threshold value, controlling the warm-keeping fan to work in an air draft mode so that the heat of the condenser is far away from the warm-keeping drawer;
s223, when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is lower than a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode so as to transfer the heat of the condenser to the warm-storage drawer;
and S224, when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset second temperature difference threshold value, controlling the warm-keeping fan to work in an air supply mode and starting the electric heating wire.
For example, the warm air storage fan operates in an air draft mode when rotating counterclockwise, operates in an air supply mode when rotating clockwise, and the first temperature difference threshold and the second temperature difference threshold may be set according to specific use conditions, for example, both are set to 5 ℃, or other values, which is not specifically limited herein.
When the real-time temperature is greater than or equal to the target temperature, the real-time temperature and the difference value of the target temperature are smaller than the first temperature difference threshold value, the fact that the heat emitted by the condenser is more does not need the air supply of the warm-storage fan, and the warm-storage fan is closed at the moment to achieve the cooling of the warm-storage drawer. When the real-time temperature is greater than or equal to the target temperature, and the real-time temperature with the difference value of the target temperature is greater than or equal to when the first temperature difference threshold value, it indicates that the heat that the condenser gived off is very much, if only close this moment the warm-keeping fan still can't make the real-time temperature be equal to the target temperature, therefore control the work of warm-keeping fan is in convulsions mode, so that the heat of condenser is kept away from warm-keeping drawer. When the real-time temperature is smaller than the target temperature, and the difference value between the real-time temperature and the target temperature is smaller than the second temperature difference threshold value, the heat emitted by the condenser is enough to enable the real-time temperature to be equal to the target temperature, and the warm-storage fan is controlled to work in an air supply mode at the moment so that the heat of the condenser is transferred to the warm-storage drawer. When the real-time temperature is smaller than the target temperature and the difference value between the real-time temperature and the target temperature is larger than or equal to the second temperature difference threshold value, it is indicated that the real-time temperature is equal to the target temperature due to the fact that the air supply of the warm air storage fan is not achieved, and at the moment, the electric heating wires are required to be used for heating together. It is worth mentioning that, at this time, the electric heating wire can work in a low power mode, so as to avoid the temperature of the warm-keeping drawer from being too high due to too high power, and the electric heating wire is turned off after the real-time temperature is equal to the target temperature.
Referring to fig. 9, fig. 9 is a flowchart of a method for controlling a temperature of a warm-keeping drawer when a compressor is in a shutdown state according to an embodiment of the present invention, where the method further includes steps S231 to S232 when the compressor is in the shutdown state:
s231, controlling the electric heating wire to keep a closed state when the real-time temperature is greater than or equal to the target temperature;
s232, when the real-time temperature is lower than the target temperature, the electric heating wire is started, and the power of the electric heating wire is controlled according to the difference value between the real-time temperature and the target temperature.
For example, in the case that the real-time temperature of the warm-up drawer is greater than or equal to the target temperature when the compressor is just stopped, the electric heating wire may remain closed. And when the real-time temperature is lower than the target temperature, the electric heating wire is started to perform compensation heating.
Referring to fig. 10, fig. 10 is a flowchart of obtaining a target power of an electric heating wire according to an embodiment of the present invention, where in step S232, the controlling the power of the electric heating wire according to the difference between the real-time temperature and the target temperature includes steps S2321 to S2323:
s2321, determining a target temperature difference grade of the difference value between the real-time temperature and the target temperature in a plurality of preset temperature difference grades; each temperature difference grade corresponds to the power of the electric heating wire, and the temperature value in the temperature grade is in direct proportion to the power of the electric heating wire;
s2322, acquiring corresponding target power of the electric heating wires according to the target temperature difference grade;
s2323, controlling the electric heating wire to work according to the target power.
For example, when a user uses the defrosting function, the required heating capacity is large, so that the electric heating wire should be provided with at least two different power levels (two corresponding temperature difference levels), and when only heating needs to be stored and kept warm for auxiliary heating, the temperature difference is small, and the low-power heating wire can be started; if a user uses the unfreezing function, the temperature difference is large at the moment, and a heating wire with large power is started to perform auxiliary compensation heating.
Further, when the compressor is in a shutdown state and the electric heating wire works, the warm air blower can be started to supply air, so that warm air circulates in the warm drawer, and the temperature in the warm drawer can be kept balanced.
Compared with the prior art, the temperature control method of the refrigerator warm-keeping drawer disclosed by the embodiment of the invention has the advantages that the warm-keeping drawer with the heat preservation function is arranged in the refrigerator, and comprises the warm-keeping accommodating cavity, the drawer main body, the warm-keeping fan and the electric heating wire. The method comprises the steps that a temperature compensation mode for the warm-keeping drawer is determined according to the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in a refrigerator, when the compressor is in a starting state, heat generated by condensation in a refrigerating system can be fully utilized, and meanwhile, the warm-keeping drawer is subjected to temperature compensation under the action of a warm-keeping fan; when the compressor is in a shutdown state, the electric heating wire is used for compensation heating, so that the temperature of the warm-keeping drawer is kept at a target temperature, and the warm-keeping requirement of food with high temperature requirement is met.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A refrigerator, characterized by comprising:
the warm-keeping drawer is arranged on one side of a condenser in the refrigerating system and comprises a warm-keeping accommodating cavity, a drawer main body, a warm-keeping fan and electric heating wires, wherein the warm-keeping fan is arranged between the condenser and the drawer main body, and the electric heating wires are arranged on at least one of the side surface, the bottom and the top of the warm-keeping accommodating cavity;
the controller is configured to:
acquiring the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in the refrigeration system;
and controlling the working mode of the warm-storage fan and the working state and power of the electric heating wire according to the working state of the compressor and the comparison result of the real-time temperature and the target temperature.
2. The refrigerator of claim 1, wherein the refrigerator has an air outlet on a side of the condenser remote from the warm-up drawer, and wherein the controller is further configured to, when the compressor is on:
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is less than a preset highest temperature threshold value, closing the warm-storage fan and closing the air outlet;
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is greater than or equal to a preset highest temperature threshold value, closing the warm-storage fan and opening the air outlet;
and when the real-time temperature is lower than the target temperature, the warm air storage fan is started and the air outlet is closed.
3. The refrigerator of claim 1, wherein when the compressor is in an on state, the controller is further configured to:
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is smaller than a preset first temperature difference threshold value, controlling the warm-storage fan to stop working;
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset first temperature difference threshold value, controlling the warm-keeping fan to work in an air draft mode so as to enable the heat of the condenser to be far away from the warm-keeping drawer;
when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is lower than a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode so as to transfer the heat of the condenser to the warm-storage drawer;
and when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode and starting the electric heating wire.
4. The refrigerator of claim 1, wherein when the compressor is in a shutdown state, the controller is further configured to:
when the real-time temperature is greater than or equal to the target temperature, controlling the electric heating wire to keep a closed state;
and when the real-time temperature is lower than the target temperature, the electric heating wire is started, and the power of the electric heating wire is controlled according to the difference value between the real-time temperature and the target temperature.
5. The refrigerator of claim 4, wherein the controlling of the power of the electric heating wire according to the difference between the real-time temperature and the target temperature comprises:
determining a target temperature difference grade of the difference value between the real-time temperature and the target temperature in a plurality of preset temperature difference grades; each temperature difference grade corresponds to the power of the electric heating wire, and the temperature value in the temperature grade is in direct proportion to the power of the electric heating wire;
acquiring corresponding target power of the electric heating wire according to the target temperature difference grade;
and controlling the electric heating wire to work according to the target power.
6. The refrigerator as claimed in claim 1, wherein a warm air door is provided in the warm drawer, the warm air door being provided between the drawer main body and the warm air blower, the warm air door being closed as the warm air blower is turned off, and the warm air blower being opened as the warm air blower is turned on.
7. The temperature control method of the warm-keeping drawer of the refrigerator is characterized in that the warm-keeping drawer is arranged on one side of a condenser in a refrigerating system and comprises a warm-keeping accommodating cavity, a drawer main body, a warm-keeping fan and electric heating wires, wherein the warm-keeping fan is arranged between the condenser and the drawer main body, and the electric heating wires are arranged on at least one of the side surface, the bottom and the top of the warm-keeping accommodating cavity; then, the temperature control method includes:
acquiring the real-time temperature and the preset target temperature of the warm-keeping drawer and the working state of a compressor in the refrigeration system;
and controlling the working mode of the warm-storage fan and the working state and power of the electric heating wire according to the working state of the compressor and the comparison result of the real-time temperature and the target temperature.
8. The method as claimed in claim 7, wherein the refrigerator is provided with an air outlet at a side of the condenser away from the warm-up drawer, and when the compressor is in an on state, the method further comprises:
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is less than a preset highest temperature threshold value, closing the warm-storage fan and closing the air outlet;
when the real-time temperature is greater than or equal to the target temperature and the temperature of the condenser is greater than or equal to a preset highest temperature threshold value, closing the warm-storage fan and opening the air outlet;
and when the real-time temperature is lower than the target temperature, the warm air storage fan is started and the air outlet is closed.
9. The method of controlling temperature of a warm-up drawer for a refrigerator according to claim 7, wherein when the compressor is in an on state, the method further comprises:
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is smaller than a preset first temperature difference threshold value, controlling the warm-storage fan to stop working;
when the real-time temperature is greater than or equal to the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset first temperature difference threshold value, controlling the warm-keeping fan to work in an air draft mode so as to enable the heat of the condenser to be far away from the warm-keeping drawer;
when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is lower than a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode so as to transfer the heat of the condenser to the warm-storage drawer;
and when the real-time temperature is lower than the target temperature and the difference value between the real-time temperature and the target temperature is greater than or equal to a preset second temperature difference threshold value, controlling the warm-storage fan to work in an air supply mode and starting the electric heating wire.
10. The method for controlling temperature of a warm-up drawer for a refrigerator according to claim 7, wherein when the compressor is in a stopped state, the method further comprises:
when the real-time temperature is greater than or equal to the target temperature, controlling the electric heating wire to keep a closed state;
and when the real-time temperature is lower than the target temperature, the electric heating wire is started, and the power of the electric heating wire is controlled according to the difference value between the real-time temperature and the target temperature.
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| CN115060039A (en) * | 2022-07-14 | 2022-09-16 | 海信冰箱有限公司 | Refrigerator with a door |
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Country or region after: Zhong Guo Address after: 266000 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266736 No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. Country or region before: Zhong Guo |
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