CN110953803A - Refrigerator and control method thereof - Google Patents

Refrigerator and control method thereof Download PDF

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Publication number
CN110953803A
CN110953803A CN201911252773.8A CN201911252773A CN110953803A CN 110953803 A CN110953803 A CN 110953803A CN 201911252773 A CN201911252773 A CN 201911252773A CN 110953803 A CN110953803 A CN 110953803A
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China
Prior art keywords
heating
temperature
detection
temperature detection
air duct
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Granted
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CN201911252773.8A
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Chinese (zh)
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CN110953803B (en
Inventor
鞠晓晨
杨大海
董浩
王海燕
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Publication of CN110953803A publication Critical patent/CN110953803A/en
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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
    • F25D17/06—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
    • F25D17/062—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 in household refrigerators
    • F25D17/065—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 in household refrigerators with 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
    • 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
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02—Refrigerators including a heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment

Abstract

The invention discloses a refrigerator and a control method thereof, and relates to the technical field of refrigeration. The temperature detection device can realize zone heating, reduces heat waste, can detect the temperature of a plurality of heating areas by one temperature detection piece, reduces the number of the temperature detection pieces, and saves the cost. The refrigerator comprises a refrigerating chamber, a freezing chamber, a temperature changing chamber and a control unit, wherein at least two temperature detection parts and at least three heating parts are arranged in the temperature changing chamber, the detection ranges of two adjacent temperature detection parts are partially overlapped, the first heating part is used for heating a non-overlapped detection area of one temperature detection part, the second heating part is used for heating an overlapped detection area of the two temperature detection parts, the third heating part is used for heating a non-overlapped detection area of the other temperature detection part, and the control unit is used for controlling the corresponding heating parts to heat. The food heating device can be used for heating food materials in the refrigerator in a partition mode.

Description

Refrigerator and control method thereof
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigerator and a control method thereof.
Background
With the development of society, the requirements of people on the quality of life are higher and higher. Therefore, the demand for diversification and individuation of the storage of things in the home life is more and more strong, and thus, a refrigerator with a temperature changing chamber is applied. The temperature in the temperature changing chamber of the refrigerator can be independently adjusted, and the requirement of a user for storing various articles can be met. At present, the refrigerator with the temperature-changing chamber function on the market generally can only realize integral heating, once the refrigerator starts to heat, the temperature of the whole temperature-changing chamber is increased, when the heating area and the volume of food materials to be heated are small, the heat absorbed by the food materials is small, and a large amount of heat waste can be caused.
Disclosure of Invention
The embodiment of the invention provides a refrigerator and a control method thereof, which can realize zone heating and reduce heat waste, and one temperature detection piece can detect the temperature of a plurality of heating zones, reduce the number of temperature detection pieces and save cost.
In order to achieve the above object, in one aspect, an embodiment of the present invention provides a refrigerator including a refrigerating compartment and a freezing compartment, a set temperature of the freezing compartment being lower than a set temperature of the refrigerating compartment; a temperature-variable chamber, independent of the refrigerating chamber and the freezing chamber, further comprising: the temperature detection parts are arranged in the temperature changing chamber, the first temperature detection part and the second temperature detection part are arranged adjacently, and detection areas of the first temperature detection part and the second temperature detection part are partially overlapped; at least three heating members disposed in the temperature varying chamber, the first heating member being configured to heat a non-overlapping detection region of the first temperature detection member; the second heating member is used for heating an overlapping detection area of the first temperature detection member and the second temperature detection member; the third heating member is used for heating the non-overlapping detection area of the second temperature detection member; a control unit configured to: acquiring detection values of the first temperature detection piece and the second temperature detection piece, and if the detection value of the first temperature detection piece is smaller than the target heating temperature threshold value and the detection value of the second temperature detection piece is larger than or equal to the target heating temperature threshold value, heating both the first heating piece and the second heating piece, wherein the heating temperature of the first heating piece is higher than the heating temperature of the second heating piece; if the detection value of the first temperature detection part is greater than or equal to the target heating temperature threshold value and the detection value of the second temperature detection part is smaller than the target heating temperature threshold value, the third heating part and the second heating part are both heated, and the heating temperature of the third heating part is higher than the heating temperature of the second heating part; if the detection values of the first temperature detection member and the second temperature detection member are both smaller than the target heating temperature threshold value, the first heating member, the second heating member, and the third heating member are all heated at the same heating temperature.
The refrigerator provided by the embodiment of the invention comprises at least two temperature detection parts and at least three heating parts; the detection areas of the first temperature detection piece and the second temperature detection piece which are adjacent are partially overlapped, and the first heating piece is used for heating the non-overlapped detection area of the first temperature detection piece; the second heating member is used for heating an overlapping detection area of the first temperature detection member and the second temperature detection member; the third heating member is used for heating the non-overlapping detection area of the second temperature detection member; the control unit can acquire detection values of the first temperature detection piece and the second temperature detection piece, if the detection value of the first temperature detection piece is smaller than a target heating temperature threshold value and the detection value of the second temperature detection piece is larger than or equal to the target heating temperature threshold value, a food material exists in a non-overlapping detection area of the first temperature detection piece, no food material exists in a non-overlapping detection area of the second temperature detection piece, only a small part of the food material possibly exists in the overlapping detection area, and at the moment, the first heating piece and the second heating piece are both heated; similarly, if the detection value of the first temperature detection part is greater than or equal to the target heating temperature threshold value and the detection value of the second temperature detection part is smaller than the target heating temperature threshold value, the third heating part and the second heating part are both heated, and the heating temperature of the third heating part is higher than the heating temperature of the second heating part; if the detection values of the first temperature detection part and the second temperature detection part are smaller than the target heating temperature threshold value, food materials are likely to be placed in the three detection areas, and therefore the first heating part, the second heating part and the third heating part are all heated at the same heating temperature. Therefore, each heating element can independently heat one area, so that the zoned heating can be realized, different heating temperatures can be adopted for heating different detection areas according to the possible placement positions of food materials, the food materials in all the areas can be heated, and meanwhile, the waste of heat is reduced; because each temperature detection piece can detect the temperature of a plurality of detection areas simultaneously, each heating area is not required to be provided with one temperature detection piece, the number of the temperature detection pieces is reduced, and the cost is saved.
On the other hand, an embodiment of the present invention provides a control method of the refrigerator, including acquiring detection values of a first temperature detection element and a second temperature detection element, and if the detection value of the first temperature detection element is smaller than the target heating temperature threshold value and the detection value of the second temperature detection element is greater than or equal to the target heating temperature threshold value, heating both the first heating element and the second heating element, and the heating temperature of the first heating element is higher than the heating temperature of the second heating element; if the detection value of the first temperature detection part is greater than or equal to the target heating temperature threshold value and the detection value of the second temperature detection part is smaller than the target heating temperature threshold value, a third heating part and the second heating part are heated, and the heating temperature of the third heating part is higher than that of the second heating part; if the detection values of the first temperature detection member and the second temperature detection member are both smaller than the target heating temperature threshold value, the first heating member, the second heating member, and the third heating member are all heated at the same heating temperature.
The control method for the refrigerator provided by the embodiment of the invention includes acquiring detection values of a first temperature detection element and a second temperature detection element, and if the detection value of the first temperature detection element is smaller than a target heating temperature threshold value and the detection value of the second temperature detection element is greater than or equal to the target heating temperature threshold value, a non-overlapping detection area of the first temperature detection element has food materials, a non-overlapping detection area of the second temperature detection element has no food materials, the overlapping detection area may have only a small part of food materials or no food materials, at this time, the first heating element and the second heating element are both heated, and since the non-overlapping area of the first temperature detection element determines that the food materials exist and the overlapping detection area may have only a small part of food materials, the heating temperature of the first heating element is higher than the heating temperature of the second heating element; similarly, if the detection value of the first temperature detection part is greater than or equal to the target heating temperature threshold value and the detection value of the second temperature detection part is smaller than the target heating temperature threshold value, the third heating part and the second heating part are both heated, and the heating temperature of the third heating part is higher than the heating temperature of the second heating part; if the detection values of the first temperature detection part and the second temperature detection part are smaller than the target heating temperature threshold value, food materials can be placed in all the three detection areas, so that the first heating part, the second heating part and the third heating part are heated at the same heating temperature. Therefore, each heating element can independently heat one detection area, so that the zoned heating can be realized, different heating temperatures can be adopted for heating different detection areas according to the possible positions of food materials, the food materials in all the areas can be heated, and the waste of heat is reduced; because each temperature detection piece can detect the temperature of a plurality of detection areas simultaneously, each heating area is not required to be provided with one temperature detection piece, the number of the temperature detection pieces is reduced, and the cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a temperature varying chamber in a refrigerator according to an embodiment of the present invention;
FIG. 3 is a diagram showing the positions of a heating member and a temperature detecting member in the refrigerator according to embodiment 1 of the present invention;
FIG. 4 is a diagram showing the positions of a heating member and a temperature detecting member in the refrigerator according to embodiment 2 of the present invention;
FIG. 5 is a diagram showing the positions of a heating member and a temperature detecting member in the refrigerator according to embodiment 3 of the present invention;
FIG. 6 is an exploded view of the refrigerator with a temperature varying chamber according to the embodiment of the present invention, schematically shown in FIG. 1;
FIG. 7 is an exploded view of the refrigerator with a warming chamber according to the embodiment of the present invention shown in FIG. 2;
FIG. 8 is an exploded view of a circulating duct assembly in a refrigerator according to an embodiment of the present invention;
FIG. 9 is a schematic view showing the flow of air in the variable temperature compartment of the refrigerator according to the embodiment of the present invention;
FIG. 10 is a perspective view showing a coupling structure of a heating film assembly, a first heat-conducting plate, a second heat-conducting plate and a support frame in the refrigerator according to the embodiment of the present invention;
FIG. 11 is a plan view showing a coupling structure of a heating film assembly, a first heat-conducting plate, a second heat-conducting plate and a support frame in the refrigerator according to the embodiment of the present invention;
FIG. 12 is a view taken along line A of FIG. 11;
fig. 13 is a view from direction B of fig. 12.
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 invention, 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 of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should 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; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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 implicitly indicating 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 invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1 and 2, the refrigerator of the present embodiment has an approximately rectangular parallelepiped shape, and an external appearance of the refrigerator is defined by a storage compartment defining a storage space and a plurality of door bodies disposed in the storage compartment, where the door bodies include a door body outer shell located outside the storage compartment, a door body inner container located inside the storage compartment, an upper end cover, a lower end cover, and a heat insulating layer located between the door body outer shell, the door body inner container, the upper end cover, and the lower end cover, and generally, the heat insulating layer is filled with a foaming material, the storage compartment is a box body having an opening and includes a refrigerating compartment 1, a freezing compartment 3, and a temperature-changing compartment 2, a set temperature of the freezing compartment 3 is lower than a set temperature of the refrigerating compartment 1, the temperature-changing compartment 2 is located between the refrigerating compartment 1 and the freezing compartment 3, the temperature-changing compartment 2 includes.
Referring to fig. 2 and 3, the refrigerator according to the embodiment of the present invention further includes a control unit, and at least two temperature sensing members 34 and at least three heating members 21 disposed in the temperature varying chamber 2, the first temperature sensing member D1 and the second temperature sensing member D2 being disposed adjacent to each other, sensing areas of the first temperature sensing member D1 and the second temperature sensing member D2 being partially overlapped, the first heating member Q1 being configured to heat a non-overlapping sensing area of the first temperature sensing member D1, the second heating member Q2 being configured to heat an overlapping sensing area of the first temperature sensing member Q1 and the second temperature sensing member Q2, and the third heating member Q3 being configured to heat a non-overlapping sensing area of the second temperature sensing member Q2; the first temperature detecting member D1 and the second temperature detecting member D2 may each be an infrared temperature sensor; the control unit can acquire the detected values of the first temperature detection piece and the second temperature detection piece, compares the detected values with a target heating temperature threshold value, and controls the heating of the corresponding heating piece according to the comparison result:
if the detection value of the first temperature detection element is smaller than the target heating temperature threshold value and the detection value of the second temperature detection element is greater than or equal to the target heating temperature threshold value, the first heating element Q1 and the second heating element Q2 are both heated, the third heating element Q3 is not heated, and the heating temperature of the first heating element Q1 is higher than the heating temperature of the second heating element Q2, in this embodiment, the first heating element Q1 may be heated at 100% of power, and the second heating element Q2 may be heated at 80% of power.
If the detected value of the first temperature detecting member is equal to or greater than the target heating temperature threshold value and the detected value of the second temperature detecting member is less than the target heating temperature threshold value, both the third heating member Q3 and the second heating member Q2 are heated, the first heating member Q1 is not heated, and the heating temperature of the third heating member Q3 is higher than that of the second heating member Q2, for example, the third heating member Q3 may be heated at 100% power and the second heating member Q2 may be heated at 80% power.
If the detected values of the first and second temperature detecting members are each less than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are all heated at the same power, for example, at 100% power.
If the detected values of the first and second temperature detecting members D1 and D2 are both equal to or greater than the target heating temperature threshold value, none of the first heating member Q1, the second heating member Q2, and the third heating member Q3 is heated.
According to the embodiment of the invention, the control unit can acquire the detection values of the first temperature detection member and the second temperature detection member, compare the detection values with the target heating temperature threshold value, and control the corresponding heating members to heat according to the comparison result. Each heating element can independently heat one area, so that the zoned heating can be realized, different heating temperatures can be adopted for heating different detection areas according to the possible positions of food materials, the food materials in all the areas can be heated, and the waste of heat is reduced; because each temperature detection piece can detect the temperature of a plurality of detection areas simultaneously, each heating area is not required to be provided with one temperature detection piece, the number of the temperature detection pieces is reduced, and the cost is saved.
The number of the temperature detecting members 34 is at least two, and the number of the heating members 21 is at least three, so that it is ensured that each temperature detecting member 34 can detect a plurality of detection regions, and at least one detection region can be simultaneously detected by two adjacent temperature detecting members 34. In the refrigerator according to the embodiment of the present invention, the number of the temperature detecting members 34 is at least two, and may be three, four, or the like.
Referring to fig. 3, in the refrigerator according to embodiment 1 of the present invention, the number of the temperature detecting members 34 is two, which are the first temperature detecting member D1 and the second temperature detecting member D2, the number of the heating members 21 is three, which are the first heating member Q1, the second heating member Q2 and the third heating member Q3, the first temperature detecting member D1 and the second temperature detecting member D2 are adjacently disposed, the detection regions of the first temperature detecting member D1 and the second temperature detecting member D2 are partially overlapped, the first heating member Q1 is used to heat the non-overlapping detection region of the first temperature detecting member D1, the second heating member Q2 is used to heat the overlapping detection region of the first temperature detecting member Q1 and the second temperature detecting member Q2, and the third heating member Q3 is used to heat the non-overlapping detection region of the second temperature detecting member Q2; the first temperature detecting member D1 and the second temperature detecting member D2 may each be an infrared temperature sensor; the control unit can acquire the detection values of the first temperature detection piece and the second temperature detection piece, compare the detection values with a target heating temperature threshold value, and control the corresponding heating piece to heat according to the comparison result, and the specific control process is shown in embodiment 1 of the refrigerator control method.
Referring to fig. 4, in the refrigerator according to embodiment 2 of the present invention, the number of the temperature sensing members 34 is three, which are respectively the first temperature sensing member D1, the second temperature sensing member D2 and the third temperature sensing member D3, the three temperature sensing members may each be an infrared temperature sensor, the number of the heating members 21 is five, which are respectively the first heating member Q1, the second heating member Q2, the third heating member Q3, the fourth heating member Q4 and the fifth heating member Q5, the refrigerator according to this embodiment is similar in structure to the refrigerator having the two temperature sensing members, except that the fourth heating member Q4 is used to heat the overlapping sensing region of the second temperature sensing member D2 and the third temperature sensing member D3, and the fifth heating member Q5 is used to heat the non-overlapping sensing region of the third temperature sensing member D3; the control unit can obtain the detection value of each temperature detection piece, compare the detection value with a target heating temperature threshold value, and control the corresponding heating piece to heat according to the comparison result, and the specific control process is shown in embodiment 2 of the refrigerator control method.
Referring to fig. 5, in the refrigerator according to embodiment 3 of the present invention, the number of temperature detecting members is four, which are respectively the first temperature detecting member D1, the second temperature detecting member D2, the third temperature detecting member D3 and the fourth temperature detecting member D4, each of the four temperature detecting members may be an infrared temperature sensor, the number of heating members 21 is seven, which are respectively the first heating member Q1, the second heating member Q2, the third heating member Q3, the fourth heating member Q4, the fifth heating member Q5, the sixth heating member Q6 and the seventh heating member Q7, the refrigerator according to the embodiment is similar in structure to the refrigerator having three temperature detecting members except that the sixth heating member Q6 is used to heat the overlapping detecting region of the third temperature detecting member D3 and the fourth temperature detecting member D4, and the seventh heating member Q7 is used to heat the non-overlapping detecting region of the fourth temperature detecting member D4; the control unit can obtain the detection value of each temperature detection piece, compare the detection value with a target heating temperature threshold value, and control the corresponding heating piece to heat according to the comparison result, and the specific control process is shown in embodiment 3 of the refrigerator control method.
Referring to fig. 2, there are various ways in which the first and second temperature sensing members D1 and D2 can be disposed, for example, the first and second temperature sensing members D1 and D2 can be supported inside the variable temperature chamber 2 by means of supporting members, the first heating member Q1 is positioned directly below the first temperature sensing member D1, and the third heating member Q3 is positioned directly below the second temperature sensing member D2, and for further example, both the first and second temperature sensing members D1 and D2 can be fixed to the top wall surface of the variable temperature chamber 2, when the first and second temperature sensing members D1 and D2 are supported inside the variable temperature chamber 2 by means of the supporting members, the supporting members need to additionally occupy the inner space of the variable temperature chamber 2, when the first and second temperature detecting members D1 and D2 are both fixed to the top wall surface of the variable temperature chamber 2, the internal space of the variable temperature chamber 2 does not need to be additionally occupied, and the variable temperature chamber 2 is more compact in structure.
The heating member 21 has various realizable structures, and for example, the heating member 21 may be heated by a heating pipe, and for further example, referring to fig. 6, the heating member 21 may also be heated by a heating film. Because the heating pipe occupation space is big, and need fix during the installation, it is inconvenient to install, however, heating film occupation space is little and only need attach during the installation can, so, heating member 21 preferably adopts the heating film heating. In the embodiment of the invention, the plurality of heating films are positioned on the same plane to form the heating film component 211, the first heat conduction plate 214 is adhered to the upper side surface of the heating film component 211, food materials can be directly placed on the upper surface of the first heat conduction plate 214, the heating film component 211 can be protected by the first heat conduction plate 214, heat can be quickly conducted to the food materials, and heat loss is reduced.
The heating film assembly 211 can be directly adhered to the bottom wall surface of the inner container 24, and the structure has the following disadvantages: the heating temperature of the heating film assembly 211 is generally high, and the inner container 24 may be damaged when being heated. Referring to fig. 2 and 6, the heating membrane assembly 211 may be supported in the temperature varying chamber 2 by a supporting frame 213, a second heat conduction plate 212 is disposed between an upper side surface of the supporting frame 213 and a lower side surface of the heating membrane assembly 211, a lower side surface of the supporting frame 213 is hermetically connected to a bottom wall surface of the temperature varying chamber 2, the second heat conduction plate 212, the supporting frame 213 and the bottom wall surface of the temperature varying chamber 2 define a heat exchange passage 31, a heat exchange passage air inlet 35 and a heat exchange passage air outlet 215 are disposed at opposite sides of the supporting frame 213, the second heat conduction plate 212 may rapidly conduct heat to the heat exchange passage 31 to reduce heat loss, a circulation air duct assembly 22 for circulating air in the temperature varying chamber 2 is further disposed in the temperature varying chamber 2, the circulation air duct assembly 22 is provided with an air duct air inlet 224 and an air duct outlet 223, wherein the heat exchange passage air inlet 35 is communicated with the temperature varying, the air outlet 215 of the air duct is communicated with the temperature changing chamber 2. From this, because heating film assembly 211 can not direct contact with inner bag 24, can not harm inner bag 24 during so heating, prolonged the life of refrigerator, because the heat that heating film assembly 211 lower part produced is used for heating the edible material by indirect, improved heating assembly 21's heat utilization ratio, and then reduced the energy consumption of refrigerator.
Referring to fig. 10 and 13, the heat exchange bracket 213 includes a panel 216 and two support plates 217, the heating film assembly 211 is disposed on the panel 216, the support plates 217 are supported between the panel 216 and the inner container 24, the number of the support plates 217 may be two, and the two support plates are respectively supported on two sides of the bottom surface of the panel 216, the panel 216 is provided with a through channel 33, the channel 33 is communicated with the heat exchange channel 31, an air inlet 35 of the heat exchange channel is disposed at one end of the panel 216 close to the inner container 26, and an air outlet 215 of the heat exchange channel is disposed at one end of the panel 216 far from the inner container 26. Therefore, the contact area between the heating element and the heat exchange support 213 is reduced, the contact area between the heat exchange support 213 and the inner container 24 is also reduced, most of heat generated by the lower part of the heating element can directly enter the heat exchange channel 31, and heat loss is reduced.
The shape of the channel 33 may be square, rectangular, circular, polygonal, etc. The shape of the channel 33 is selected based on: the area of the channel 33 is as large as possible while ensuring that sufficient support is provided for the heating element. Accordingly, the contact area between the heating elements and the panel 216 is minimized, and the amount of heat conducted from the heating elements to the panel 216 is minimized, thereby reducing the heat dissipation from the heating film assembly 211.
Referring to fig. 3, infrared temperature sensor can be selected for use by first temperature detection D1 and second temperature detection D2, and its detection precision is higher, and the reaction time of sensor is shorter, and user experience is better.
Referring to fig. 13, when the radial dimension of the heat exchange channel 31 is too large, the heat exchange stroke may be long, and heat waste is easily caused, so that a plurality of rib plates 230 may be disposed in the heat exchange channel 31, and the length direction of all rib plates 230 may be the same as the extending direction of the heat exchange channel 31, so that the heat exchange channel 31 may be divided into a plurality of sub heat exchange channels disposed side by side. Therefore, compared with a large heat exchange channel, the gas can be selected to pass through a nearby sub-heat exchange channel, the heat exchange stroke is shorter, and the heat exchange efficiency is improved.
The heat exchange channel air outlet 215 may be disposed at a plurality of positions, for example, the heat exchange channel air outlet 215 may correspond to one or more sub heat exchange channels located in the middle, or may correspond to a sub heat exchange channel on any side, when the heat exchange channel air outlet 215 corresponds to a sub channel in the middle, the heat exchange stroke is shortest, when the lengths of all the rib plates 230 are equal, because the distances between the sub heat exchange channel openings and the air outlet 215 of the heat exchange channel are generally short, the cold air in the sub heat exchange channels located on both sides is not easily collected into the air outlet 215 of the heat exchange channel located in the middle, and the cold air is easily guided to flow unsmoothly, therefore, the lengths of the plurality of rib plates 230 should preferably be unequal, and the arrangement rule of the plurality of rib plates 230 is that the lengths of the rib plates 230 sequentially decrease from the middle to both sides along. Therefore, the heat exchange is smoother, and the heat exchange efficiency is further improved.
Referring to fig. 2, 9, 10 and 11, the circulating air duct assembly 22 may be disposed inside the temperature varying chamber 2, the air duct inlet 224 is close to the bottom of the temperature varying chamber 2, the air duct outlet 223 is close to the top of the temperature varying chamber 2, a protrusion 219 is disposed upward at an end of the panel 216 close to the circulating air duct assembly 22, the air outlet 215 of the heat exchanging channel is disposed on the protrusion 219, a folded edge 218 is formed at an end of the panel 216 far from the circulating air duct assembly 22, and the heat exchanging channel inlet 35 is disposed on the folded edge 218. From this, cold air can form the major cycle through heat transfer passageway 31, circulation wind channel subassembly 22 and temperature changing room 2, and more edible materials in the heatable temperature changing room 2 because wind channel air intake 224 generally has a certain height apart from the bottom of temperature changing room 2, consequently, heat transfer passageway air outlet 215 sets up when arch 219, and the connection between panel 216 and the circulation wind channel subassembly 22 is more smooth, and is also more smooth and easy when gaseous by heat transfer passageway 31 entering circulation wind channel subassembly 22.
Referring to fig. 12, for processing convenience, heat transfer passageway air intake 35 can be a rectangular hole or rectangular hole, nevertheless because the user can stretch into heat transfer passageway 31 with the hand because of the maloperation, lead to being scalded, in addition, a rectangular hole or rectangular hole can't block in large granule object gets into heat transfer passageway 31, consequently, heat transfer passageway air intake 35 can be a plurality of holes along the length direction equipartition of hem 218, the restriction is not made to the shape in hole, can also be for the round hole can be as little as possible for the size of round hole under the prerequisite of assurance heat transfer volume such as square hole. Therefore, the safety of the refrigerator is improved, and meanwhile large-particle objects can be prevented from entering the refrigerator to pollute the refrigerator.
Referring to fig. 7 and 8, the circulating air duct assembly 22 may include a first air duct foam 25, a second air duct foam 37, and an air duct cover 221, the first air duct foam 25 and the second air duct foam 37 are connected to each other, a circulating air duct 32 is formed between the first air duct foam 25 and the second air duct foam 37, a circulating fan 222 is disposed in the circulating air duct 32, the air duct cover 221 covers outer sides of the first air duct foam 25 and the second air duct foam 37 and is clamped with an inner wall of the temperature changing chamber 2, and an air duct air outlet 223 and an air duct air inlet 224 are disposed on the air duct cover. Thus, the circulation fan 222 can accelerate the whole circulation heat exchange process, thereby reducing heat loss.
The number of the air duct air outlets 223 and the air duct air inlets 224 can be one or more, the first air duct foam 25 and the second air duct foam 37 can also be used for heat insulation and heat dissipation reduction, a circulating fan mounting rack 225 can be arranged on the second air duct foam 37, and the circulating fan 222 is mounted on the circulating fan mounting rack 225. Thus, the installation of the circulation fan 222 is more convenient and more reliable.
In addition, some food materials may not be suitable for blowing air during heating or keeping warm in the refrigerator, for example, when dough is fermented, moisture on the surface of the dough is lost if air is blown, and the surface of the dough is hard. When indirect heating is not needed, only the circulating fan 222 needs to be turned off, so that various selection modes are provided for users, and the use is more convenient for the users.
Referring to fig. 2 and 8, since some food materials may need to be refrigerated during the use of the refrigerator, the refrigerator may further include a refrigeration assembly for refrigerating the temperature changing chamber 2, and the circulating air duct assembly 22 further includes a control damper 27, where the control damper 27 is used for controlling the connection and disconnection between the refrigeration assembly 22 and the circulating air duct 32. Therefore, when refrigeration is needed, only the control damper 27 needs to be opened, the heating film assembly 211 is turned off, and the control damper 27 is closed until the temperature of the temperature changing chamber 2 is equal to the target refrigeration temperature threshold value, so that multiple selection modes are provided for users, and the use is more convenient for the users. In order to accurately detect the temperature in the temperature-variable chamber 2, a temperature detection device 23 for detecting the temperature of the chamber may be provided inside the inner container 24, and the temperature detection device 23 may be a thermal resistance temperature sensor. Therefore, the temperature value of the temperature changing chamber 2 can be provided for the control unit, and the control unit can conveniently and accurately judge the refrigerating or refrigerating stopping time.
The embodiment of the invention also provides a control method of the refrigerator, which comprises the following steps:
and acquiring detection values of the first temperature detection part and the second temperature detection part, comparing the detection values with a target heating temperature threshold value, and controlling the corresponding heating parts to heat according to the comparison result.
If the detected value of the first temperature detecting element is less than the target heating temperature threshold value and the detected value of the second temperature detecting element is greater than or equal to the target heating temperature threshold value, the first heating element Q1 and the second heating element Q2 are both heated, the heating temperature of the first heating element Q1 is higher than that of the second heating element Q2, and the third heating element Q3 is not heated, for example, the first heating element Q1 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected value of the first temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the second temperature detecting element is less than the target heating temperature threshold value, both the third heating element Q3 and the second heating element Q2 are heated, and the heating temperature of the third heating element Q3 is higher than that of the second heating element Q2, the first heating element Q1 is not heated, for example, the third heating element Q3 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are each less than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are all heated at 100% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are both equal to or greater than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are not heated.
According to the control method provided by the embodiment of the invention, the detection values of the first temperature detection part and the second temperature detection part are obtained, the detection values are compared with the target heating temperature threshold value, and the corresponding heating parts are controlled to heat according to the comparison result. Each heating element can independently heat one detection area, so that the zoned heating can be realized, different heating temperatures can be adopted for heating different detection areas according to the possible placement positions of food materials, and the waste of heat is reduced; because each temperature detection piece can detect the temperature of a plurality of detection areas simultaneously, each heating area is not required to be provided with one temperature detection piece, the number of the temperature detection pieces is reduced, and the cost is saved.
Referring to fig. 3, in the refrigerator according to embodiment 1 of the present invention, the number of the temperature detecting members 34 is two, and the number of the heating members 21 is three, respectively, and the control method of the refrigerator according to the embodiment includes:
and acquiring detection values of the first temperature detection part and the second temperature detection part, comparing the detection values with a target heating temperature threshold value, and controlling the corresponding heating parts to heat according to the comparison result.
If the detected value of the first temperature detecting element is less than the target heating temperature threshold value and the detected value of the second temperature detecting element is greater than or equal to the target heating temperature threshold value, the first heating element Q1 and the second heating element Q2 are both heated, the heating temperature of the first heating element Q1 is higher than that of the second heating element Q2, and the third heating element Q3 is not heated, for example, the first heating element Q1 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected value of the first temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the second temperature detecting element is less than the target heating temperature threshold value, both the third heating element Q3 and the second heating element Q2 are heated, and the heating temperature of the third heating element Q3 is higher than that of the second heating element Q2, the first heating element Q1 is not heated, for example, the third heating element Q3 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are each less than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are all heated at 100% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are both equal to or greater than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are not heated.
Table 1 is a table in which detected values of two temperature detecting members and operating states of three heating members in the embodiment of the present invention correspond to each other; wherein, TD1Representing the value detected by the first temperature-detecting element, TD2Represents the detection value of the first temperature detection member, and Tm represents the target heating temperature threshold value.
TABLE 1
Figure BDA0002309489070000131
Referring to fig. 4, in the refrigerator according to embodiment 2 of the present invention, the number of the temperature detecting members 34 is three, and the number of the heating members 21 is five, respectively, and the control method of the refrigerator according to this embodiment includes:
and acquiring detection values of the first temperature detection part and the second temperature detection part, comparing the detection values with a target heating temperature threshold value, and controlling the corresponding heating parts to heat according to the comparison result.
If the detected value of the first temperature detecting element is less than the target heating temperature threshold value and the detected value of the second temperature detecting element is greater than or equal to the target heating temperature threshold value, the first heating element Q1 and the second heating element Q2 are both heated, the heating temperature of the first heating element Q1 is higher than that of the second heating element Q2, and the third heating element Q3 is not heated, for example, the first heating element Q1 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected value of the first temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the second temperature detecting element is less than the target heating temperature threshold value, both the third heating element Q3 and the second heating element Q2 are heated, and the heating temperature of the third heating element Q3 is higher than that of the second heating element Q2, the first heating element Q1 is not heated, for example, the third heating element Q3 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are each less than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are all heated at 100% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are both equal to or greater than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are not heated.
The steps are repeated, the detection values of the second temperature detection element and the third temperature detection element are obtained, the detection values of the second temperature detection element and the third temperature detection element are respectively compared with the target heating temperature threshold value, if the detection value of the second temperature detection element is smaller than the target heating temperature threshold value and the detection value of the third temperature detection element is larger than or equal to the target heating temperature threshold value, the third heating element Q3 and the fourth heating element Q4 are both heated, the heating temperature of the third heating element Q3 is higher than that of the second heating element Q4, the fifth heating element Q5 is not heated, and for example, the third heating element Q3 can be heated at 100% of power, and the fourth heating element Q4 can be heated at 80% of power.
If the detected value of the second temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the third temperature detecting element is less than the target heating temperature threshold value, the fifth heating element Q5 and the fourth heating element Q4 are both heated, the heating temperature of the fifth heating element Q5 is higher than that of the fourth heating element Q4, the third heating element Q3 is not heated, for example, the fifth heating element Q5 can be heated at 100% of power, and the fourth heating element Q4 can be heated at 80% of power.
If the detected values of the second and third temperature detecting members are less than the target heating temperature threshold, the third heating member Q3, the fourth heating member Q4, and the fifth heating member Q5 are all heated at 100% power.
If the detected values of the second temperature detecting member and the third temperature detecting member are both equal to or greater than the target heating temperature threshold value, the third heating member Q3, the fourth heating member Q4, and the fifth heating member Q5 are not heated.
Table 2 is a table of correspondence between the detection values of three temperature detection members and the operating states of five heating members in the embodiment of the present invention; wherein, TD1Representing the value detected by the first temperature-detecting element, TD2Representing the value detected by the first temperature-detecting element, TD3Represents the detection value of the first temperature detection member, and Tm represents the target heating temperature threshold value.
TABLE 2
Figure BDA0002309489070000141
Figure BDA0002309489070000151
Referring to fig. 5, in the refrigerator according to embodiment 3 of the present invention, the number of the temperature detecting members 34 is four, and the number of the heating members 21 is seven, respectively, and the method for controlling the refrigerator according to this embodiment includes:
acquiring detection values of the first temperature detection part and the second temperature detection part, comparing the detection values with a target heating temperature threshold value, and controlling corresponding heating parts to heat according to a comparison result:
if the detected value of the first temperature detecting element is less than the target heating temperature threshold value and the detected value of the second temperature detecting element is greater than or equal to the target heating temperature threshold value, the first heating element Q1 and the second heating element Q2 are both heated, the heating temperature of the first heating element Q1 is higher than that of the second heating element Q2, and the third heating element Q3 is not heated, for example, the first heating element Q1 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected value of the first temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the second temperature detecting element is less than the target heating temperature threshold value, both the third heating element Q3 and the second heating element Q2 are heated, and the heating temperature of the third heating element Q3 is higher than that of the second heating element Q2, the first heating element Q1 is not heated, for example, the third heating element Q3 may be heated at 100% power, and the second heating element Q2 may be heated at 80% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are each less than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are all heated at 100% power.
If the detected values of the first temperature detecting member and the second temperature detecting member are both equal to or greater than the target heating temperature threshold value, the first heating member Q1, the second heating member Q2, and the third heating member Q3 are not heated.
The detection values of the second temperature detection element and the third temperature detection element are acquired, the detection values of the second temperature detection element and the third temperature detection element are respectively compared with a target heating temperature threshold value, if the detection value of the second temperature detection element is smaller than the target heating temperature threshold value and the detection value of the third temperature detection element is larger than or equal to the target heating temperature threshold value, the third heating element Q3 and the fourth heating element Q4 are both heated, the heating temperature of the third heating element Q3 is higher than that of the second heating element Q4, the fifth heating element Q5 is not heated, and for example, the third heating element Q3 can be heated at 100% of power, and the fourth heating element Q4 can be heated at 80% of power.
If the detected value of the second temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the third temperature detecting element is less than the target heating temperature threshold value, the fifth heating element Q5 and the fourth heating element Q4 are both heated, the heating temperature of the fifth heating element Q5 is higher than that of the fourth heating element Q4, the third heating element Q3 is not heated, for example, the fifth heating element Q5 can be heated at 100% of power, and the fourth heating element Q4 can be heated at 80% of power.
If the detected values of the second and third temperature detecting members are less than the target heating temperature threshold, the third heating member Q3, the fourth heating member Q4, and the fifth heating member Q5 are all heated at 100% power.
If the detected values of the second temperature detecting member and the third temperature detecting member are both equal to or greater than the target heating temperature threshold value, the third heating member Q3, the fourth heating member Q4, and the fifth heating member Q5 are not heated.
The detection values of the third temperature detection element and the fourth temperature detection element are obtained, the detection values of the third temperature detection element and the fourth temperature detection element are respectively compared with a target heating temperature threshold value, if the detection value of the third temperature detection element is smaller than the target heating temperature threshold value and the detection value of the fourth temperature detection element is larger than or equal to the target heating temperature threshold value, the sixth heating element Q6 and the fifth heating element Q5 are both heated, the heating temperature of the fifth heating element Q5 is higher than that of the sixth heating element Q6, the seventh heating element Q7 is not heated, and for example, the fifth heating element Q5 can be heated at 100% of power, and the sixth heating element Q6 can be heated at 80% of power.
If the detected value of the third temperature detecting element is equal to or greater than the target heating temperature threshold value and the detected value of the fourth temperature detecting element is less than the target heating temperature threshold value, the sixth heating element Q6 and the seventh heating element Q7 are both heated, the heating temperature of the seventh heating element Q7 is higher than that of the sixth heating element Q6, the fifth heating element Q5 is not heated, for example, the seventh heating element Q7 may be heated at 100% of power, and the sixth heating element Q6 may be heated at 80% of power.
If the detected values of the third temperature detecting member and the fourth temperature detecting member are both less than the target heating temperature threshold value, the fifth heating element Q5, the sixth heating element Q6, and the seventh heating element Q7 are all heated at 100% power.
If the detected values of the third temperature detecting element and the fourth temperature detecting element are both equal to or greater than the target heating temperature threshold value, the fifth heating element Q5, the sixth heating element Q6, and the seventh heating element Q7 are not heated.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. A refrigerator, comprising:
the refrigerator comprises a refrigerating chamber and a freezing chamber, wherein the set temperature of the freezing chamber is lower than that of the refrigerating chamber;
the temperature-changing chamber, independently from the walk-in reaches the freezer, its characterized in that still includes:
the temperature detection parts are arranged in the temperature changing chamber, the first temperature detection part and the second temperature detection part are arranged adjacently, and detection areas of the first temperature detection part and the second temperature detection part are partially overlapped;
at least three heating members disposed in the temperature varying chamber, the first heating member being configured to heat a non-overlapping detection region of the first temperature detection member; the second heating member is used for heating an overlapping detection area of the first temperature detection member and the second temperature detection member; the third heating member is used for heating the non-overlapping detection area of the second temperature detection member;
a control unit configured to:
acquiring detection values of the first temperature detection member and the second temperature detection member,
if the detection value of the first temperature detection part is smaller than a target heating temperature threshold value and the detection value of the second temperature detection part is larger than or equal to the target heating temperature threshold value, the first heating part and the second heating part are both heated, and the heating temperature of the first heating part is higher than the heating temperature of the second heating part;
if the detection value of the first temperature detection part is greater than or equal to the target heating temperature threshold value and the detection value of the second temperature detection part is smaller than the target heating temperature threshold value, the third heating part and the second heating part are both heated, and the heating temperature of the third heating part is higher than the heating temperature of the second heating part;
if the detection values of the first temperature detection member and the second temperature detection member are both smaller than the target heating temperature threshold value, the first heating member, the second heating member, and the third heating member are all heated at the same heating temperature.
2. The refrigerator according to claim 1,
the first temperature detection piece and the second temperature detection piece are both positioned at the top of the temperature-changing chamber;
the first heating member is located directly below the first temperature detection member, and the third heating member is located directly below the second temperature detection member.
3. The refrigerator according to claim 1 or 2,
the heating member is a heating film, a plurality of the heating film is located the coplanar, and forms a heating film subassembly, the side bonding first heat-conducting plate of going up of heating film subassembly.
4. The refrigerator according to claim 3, further comprising,
the second heat-conducting plate is bonded on the lower side surface of the heating membrane component;
the upper side surface of the supporting frame is fixedly connected with the lower side surface of the second heat-conducting plate, the lower side surface of the supporting frame is hermetically connected with the bottom wall surface of the temperature-changing chamber, and the second heat-conducting plate, the supporting frame and the bottom wall surface of the temperature-changing chamber enclose a heat exchange channel; the two opposite sides of the supporting frame are provided with a heat exchange channel air inlet and a heat exchange channel air outlet;
the circulating air channel assembly is used for circulating and circulating air in the temperature changing chamber and is provided with an air channel air inlet and an air channel air outlet;
the air inlet of the heat exchange channel is communicated with the temperature changing chamber, the air inlet of the air channel is communicated with the air outlet of the heat exchange channel, and the air outlet of the air channel is communicated with the temperature changing chamber.
5. The refrigerator according to claim 4,
the first temperature detection and the second temperature detection are both infrared temperature sensors.
6. The refrigerator according to claim 5, wherein a plurality of ribs are provided at a lower side of the second heat conduction plate, and a length direction of the plurality of ribs coincides with an extension direction of the heat exchange channel to divide the heat exchange channel into a plurality of sub heat exchange channels.
7. The refrigerator according to claim 6, wherein the circulation duct assembly is disposed inside the variable temperature chamber; the air duct air inlet is close to the bottom of the temperature-changing chamber, and the air duct air outlet is close to the top of the temperature-changing chamber;
the heat exchange device is characterized in that a bulge is upwards arranged at one end, close to the circulating air duct assembly, of the supporting frame, an air outlet of the heat exchange channel is formed in the bulge, a folded edge is formed at one end, far away from the circulating air duct assembly, of the supporting frame, and an air inlet of the heat exchange channel is formed in the folded edge.
8. The refrigerator of claim 7, wherein the circulation duct assembly comprises:
the air conditioner comprises a first air duct foam and a second air duct foam which are connected with each other, wherein a circulating air duct is formed between the first air duct foam and the second air duct foam, and a circulating fan is arranged in the circulating air duct;
the air duct cover plate covers the first air duct foam and the second air duct foam outside and is connected with the inner wall of the temperature changing chamber in a clamping mode, and the air duct cover plate is provided with an air duct air outlet and an air duct air inlet which are communicated with the circulating air duct.
9. The refrigerator according to claim 8, further comprising a refrigeration assembly for refrigerating the temperature-variable chamber, wherein the circulation air duct assembly further comprises a control damper disposed in the circulation air duct, and the control damper is used for controlling on/off of the refrigeration assembly and the circulation air duct.
10. A control method of a refrigerator according to any one of claims 1 to 9, comprising,
the detection values of the first temperature detection member and the second temperature detection member are respectively obtained,
if the detection value of the first temperature detection part is smaller than the target heating temperature threshold value and the detection value of the second temperature detection part is larger than or equal to the target heating temperature threshold value, the first heating part and the second heating part are both heated, and the heating temperature of the first heating part is higher than that of the second heating part;
if the detection value of the first temperature detection part is greater than or equal to the target heating temperature threshold value and the detection value of the second temperature detection part is smaller than the target heating temperature threshold value, the third heating part and the second heating part are heated, and the heating temperature of the third heating part is higher than the heating temperature of the second heating part;
and if the detection values of the first temperature detection part and the second temperature detection part are smaller than the target heating temperature threshold value, the first heating part, the second heating part and the third heating part are heated at the same heating temperature.
CN201911252773.8A 2019-12-09 2019-12-09 Refrigerator and control method thereof Active CN110953803B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256482B (en) * 1991-06-03 1995-02-22 Murata Manufacturing Co Apparatus for detecting movement of heat source
CN202709601U (en) * 2012-06-14 2013-01-30 海信容声(广东)冰箱有限公司 Refrigerator with interchangeable temperature chamber
CN204718241U (en) * 2015-04-30 2015-10-21 合肥美的电冰箱有限公司 Ducting assembly and there is its refrigerator
CN204752839U (en) * 2015-04-28 2015-11-11 上海宏昊企业发展有限公司 Square evaporation storehouse
CN209013572U (en) * 2018-10-31 2019-06-21 Tcl家用电器（合肥）有限公司 Refrigerator temperature-changing chamber and refrigerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256482B (en) * 1991-06-03 1995-02-22 Murata Manufacturing Co Apparatus for detecting movement of heat source
CN202709601U (en) * 2012-06-14 2013-01-30 海信容声(广东)冰箱有限公司 Refrigerator with interchangeable temperature chamber
CN204752839U (en) * 2015-04-28 2015-11-11 上海宏昊企业发展有限公司 Square evaporation storehouse
CN204718241U (en) * 2015-04-30 2015-10-21 合肥美的电冰箱有限公司 Ducting assembly and there is its refrigerator
CN209013572U (en) * 2018-10-31 2019-06-21 Tcl家用电器（合肥）有限公司 Refrigerator temperature-changing chamber and refrigerator

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