WO2022000820A1 - 冰箱及其控制方法 - Google Patents

冰箱及其控制方法 Download PDF

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Publication number
WO2022000820A1
WO2022000820A1 PCT/CN2020/117135 CN2020117135W WO2022000820A1 WO 2022000820 A1 WO2022000820 A1 WO 2022000820A1 CN 2020117135 W CN2020117135 W CN 2020117135W WO 2022000820 A1 WO2022000820 A1 WO 2022000820A1
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WO
WIPO (PCT)
Prior art keywords
support
heating
heating element
refrigerator according
temperature
Prior art date
Application number
PCT/CN2020/117135
Other languages
English (en)
French (fr)
Inventor
王美艳
杨保强
刘铁伟
张建
张宇
朱建高
孙迎宾
李亚婧
Original Assignee
海信（山东）冰箱有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010632736.6A external-priority patent/CN113883790A/zh
Priority claimed from CN202010632717.3A external-priority patent/CN113883789A/zh
Priority claimed from CN202010627815.8A external-priority patent/CN113883787A/zh
Application filed by 海信（山东）冰箱有限公司 filed Critical 海信（山东）冰箱有限公司
Publication of WO2022000820A1 publication Critical patent/WO2022000820A1/zh

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers

Definitions

  • the present disclosure relates to a household appliance, in particular to a refrigerator and a control method thereof.
  • a refrigerator is an appliance that maintains a low temperature by keeping food or other items cold at a constant temperature to avoid spoilage.
  • people's demand for food preservation is also increasing.
  • ingredients are often stored in the refrigerator, such as: vegetables, fruits, cooked food, pasta and so on.
  • certain odors or volatiles are often emitted, and these odors and volatiles tend to contaminate the interior of the refrigerator. Therefore, multiple ingredients are placed in the refrigerator at the same time, which will cause mutual contamination of the ingredients in the refrigerator.
  • some embodiments of the present disclosure provide a refrigerator, including:
  • the packaging structure includes a first support, a second support and a heating assembly, the first support and the second support move toward each other to clamp the packaging bag;
  • the heating assembly includes a heating element and a heat insulating plate, the heating element is arranged on the outer side of the first support for heating the packaging bag, and the insulating plate is arranged on the heating element and the heat insulating plate. between the first supports.
  • some embodiments of the present disclosure provide a refrigerator, including: a box body and a packaging structure disposed in the box body;
  • the packaging structure includes a first support, a second support and a heating element; the first support and the second support can move toward each other to clamp the packaging bag; the heating element is arranged on the first support the heating assembly includes a heating element and a thermal protection device; the heating element is used to heat and seal the packaging bag; the thermal protection device is electrically connected with the heating element to form a heating circuit, when the When the temperature of the thermal protection device reaches a threshold value, the thermal protection device is disconnected, and the heating circuit is disconnected.
  • some embodiments of the present disclosure provide a refrigerator, including:
  • the heating assembly is arranged in the first support; the heating assembly includes a heating element, a temperature sensing device and a control unit; the heating element is used to heat and seal the packaging bag; the temperature sensing device is connected to The control unit is electrically connected to collect the heating temperature of the heating element to generate an electrical signal; the control unit receives the electrical signal and controls the working state of the heating element according to the electrical signal.
  • FIG. 1 is a perspective view of a refrigerator according to some embodiments of the present disclosure
  • Fig. 2 is the exploded view of the door body of the refrigerator shown in Fig. 1;
  • Fig. 3 is the sectional view of the door body shown in Fig. 2;
  • Fig. 4 is a partial enlarged view of the door body A part shown in Fig. 3;
  • FIG. 5 is a perspective view of the vacuum packaging structure shown in FIG. 2;
  • FIG. 6 is an exploded view of the vacuum packaging structure shown in FIG. 5;
  • FIG. 7 is a schematic cross-sectional view of the vacuum packaging structure shown in FIG. 5;
  • FIG. 8 is a schematic diagram of an electrical modularization of the vacuum packaging structure shown in FIG. 2;
  • FIG. 9 is a flowchart of the control method of the refrigerator according to the present embodiment.
  • Fig. 10 is the concrete flow chart of the control method shown in Fig. 9;
  • FIG. 11 is a specific flowchart of step S14 of the control method shown in FIG. 9 .
  • the vacuum packaging equipment needs to heat and plastic seal the packaging bag to maintain the vacuum sealing state. Since most of the parts inside the refrigerator are made of plastic, plastic and other materials, during the heating process of the packaging bag, if the heating temperature of the vacuum packaging equipment is abnormal, the parts of the refrigerator will be deformed by heat, and even overheating and fire may occur. , which seriously affects the safety of the refrigerator.
  • the refrigerator can be a refrigerator with double doors, multiple doors, French doors, and cross doors.
  • the types of refrigerators are not limited here.
  • FIG. 1 is a perspective view of a refrigerator according to some embodiments of the present disclosure.
  • the refrigerator 1 includes a box body 2 .
  • the box body 2 is substantially rectangular parallelepiped.
  • the box body 2 includes a door body 22 and a storage room for storing food.
  • One side of the storage compartment is open.
  • the door body 22 is provided with an opening of the storage room, and can close the storage room.
  • the inside of the storage compartment forms a storage space of the refrigerator 1 .
  • the interior of the box body 2 can be divided into a plurality of independent functional spaces according to different use functions, which can include a refrigerating room, a freezing room, a quick-freezing room, a thawing room, and the like.
  • the refrigerator compartment is located above the box body 2
  • the freezer compartment is located below the box body 2 .
  • the distribution manner of each space on the box body 2 may also be other manners, which are not limited here.
  • a mutually independent door 22 may be provided between each functional space, so as to seal the functional space.
  • multiple functional spaces can also share one door body 22 to seal the multiple functional spaces at the same time.
  • the correspondence between the door body 22 and the functional space is also not limited here.
  • FIG. 2 is an exploded view of the door body of the refrigerator shown in FIG. 1
  • FIG. 3 is a cross-sectional view of the door body shown in FIG. 2
  • the refrigerator 1 further includes a packaging structure disposed on the box body 2 .
  • the encapsulation structure may be provided on the inner side wall or the outer side wall of the door body 22 of the box body 2, or may be provided on the inner side wall or the outer side wall of the storage room.
  • the packaging structure is provided on the outer side wall of the door body 22 of the box body 2 .
  • a mounting groove 221 for mounting the package structure is opened on the outer side wall of the door body 22 .
  • the encapsulation mechanism is fixedly installed in the installation groove 221 by means of screws 9, expansion screws and the like. Moreover, the installation slot 221 is opened at the upper middle of the door body 22 , and the packaging structure is located at the middle position of the refrigerator 1 . Users can directly face the package structure, and the operating height of the package structure also meets the ergonomic design requirements.
  • the package structure includes a first support 31 , a second support 32 and a heating element 33 .
  • the first support 31 and the second support 32 are the main frame structures of the packaging structure.
  • the first support 31 and the second support 32 can move toward each other to hold the packaging bag 80 .
  • the packaging structure is sealed to seal the packaging bag 80 .
  • the first support 31 and the second support 32 can be separated from each other, so that the packaging bag 80 can be removed from the packaging structure to complete the sealing package.
  • the type of the packaging structure is not limited here, as long as the packaging structure can realize the sealing packaging of the food.
  • the movement relationship between the first support 31 and the second support 32 may be: the first support 31 moves toward or away from the second support 32; or, the second support 32 moves toward or away from the first support
  • the support 31 moves; alternatively, both the first support 31 and the second support 32 move toward or away from each other.
  • the package structure further includes a drive assembly 34 .
  • the driving assembly 34 drives the first support 31 and the second support 32 to move toward or away from each other.
  • the driving assembly 34 can control the automatic lifting and lowering movement of the first support 31 and/or the second support 32 to realize automatic vacuum packaging and improve the automation performance of the refrigerator 1. In other embodiments, the drive assembly 34 may also be omitted. Then the first support 31 or the second support 32 can be moved by manual driving, and the movement mode of the first support 31 or the second support 32 is not limited here.
  • the setting positions of the first support 31 and the second support 32 may be determined according to the user's usage habits, the space division of the door body 22 of the refrigerator 1, and the like.
  • the first support 31 and the second support 32 may be disposed on the door body 22 in the upper and lower positions opposite to each other; or, the first support 31 and the second support 32 may also be oppositely disposed on the door body 22 on the left and right sides ; even, the first support 31 and the second support 32 can be obliquely arranged on the door body 22 .
  • the description of "up, down, left and right” here refers to the up, down, left, right and other orientations when the refrigerator 1 is facing the refrigerator when the refrigerator 1 is upright and vertically placed.
  • the first support 31 is provided above the second support 32 . And, the first support 31 moves downward relative to the second support 32, so that the first support 31 and the second support 32 are butted against each other.
  • the top and bottom of the first support 31 and the second support 32 are arranged opposite to each other, which can be more in line with the user's usage habits.
  • the first support 31 presses down the packaging bag 80 on the second support 32, which is convenient for the user to hold.
  • the left and right ends of the packaging bag 80 can prevent the ingredients in the packaging bag 80 from being overturned.
  • the heating assembly 33 includes a heating element 331 .
  • the heating element 331 is used to heat and seal the packaging bag 80 .
  • the heating element 33 is disposed on the first support 31 , and the packaging bag 80 is placed on the second support 32 .
  • the heating element 33 moves with the movement of the first support 31
  • the first support 31 presses against the second support 32
  • the heating element 331 presses the packaging bag 80 .
  • the heating element 331 will heat and seal the opening of the packaging bag 80 .
  • the packaging structure may be a vacuum packaging structure 3 .
  • the vacuum packaging structure 3 is used for vacuuming the packaging bag 80 .
  • the vacuum packaging structure 3 can further vacuumize the ingredients first, and then seal them for storage, thereby improving the freshness of the ingredients.
  • FIG. 4 is a partial enlarged view of part A of the door body shown in FIG. 3 .
  • the first support 31 is provided with a first cavity 311
  • the second support 32 is provided with a second cavity 322 .
  • the shapes of the first support 31 and the second support 32 are adapted. When the first support 31 and the second support 32 move toward each other and are butted against each other, the first cavity 311 and the second cavity 322 form a sealed vacuuming cavity 36 .
  • the door body 22 is provided with a packaging opening 222 .
  • the sealing port 222 is opposite to the vacuuming chamber 36 . Then, the open end of the packaging bag 80 can be inserted from the packaging opening 222 , and can be directly entered into the vacuuming chamber 36 from the outside of the door body 22 .
  • the opening of the packaging bag 80 is located in the vacuuming chamber 36, and the inner space of the packaging bag 80 communicates with the vacuuming chamber 36 through the opening to form a complete closed chamber.
  • the first cavity 311 or the second cavity 321 is provided with a limiting portion for limiting the insertion position of the packaging bag 80 inserted into the vacuuming chamber 36 to prevent the opening of the packaging bag 80 from protruding out of the vacuuming chamber 36 .
  • the limiting portion is a limiting rib 314 disposed in the first cavity 311 , and the height of the limiting rib 314 is greater than the depth of the first cavity 311 .
  • the limiting ribs 314 can prevent the packaging bag from continuing to be inserted inward.
  • the vacuuming chamber 36 can also be provided with a position detection device, specifically, a microwave sensor or an infrared sensor can be used to detect whether a packaging bag is inserted into the vacuuming chamber 36, send a signal whether the packaging bag is in position, and control the vacuuming. Vacuum operation.
  • a position detection device specifically, a microwave sensor or an infrared sensor can be used to detect whether a packaging bag is inserted into the vacuuming chamber 36, send a signal whether the packaging bag is in position, and control the vacuuming. Vacuum operation.
  • the vacuum packaging structure 3 includes an evacuation assembly 35 .
  • the vacuuming assembly 35 communicates with the vacuuming chamber 36 .
  • the vacuuming assembly 35 performs a vacuuming operation on the vacuuming chamber 36 , so as to perform vacuuming on the entire closed chamber, and realize the vacuuming operation on the packaging bag 80 .
  • the first support 31 defines a first sealing groove on the outer circumference of the first cavity 311 , and a first sealing ring 312 is arranged in the first sealing groove.
  • the second support 32 defines a second sealing groove on the outer circumference of the second cavity 322 .
  • a second sealing ring 322 is also provided in the second sealing groove. The first sealing ring 312 and the second sealing ring 322 maintain a sealing connection between the first support 31 and the second support 32 to improve the sealing performance of the vacuum chamber 36 .
  • the heating element 33 moves with the first support 31, the first support 31 is pressed against the second support 32, and the heating element 331 presses the packaging bag 80 to form a closed Evacuate chamber 36.
  • the vacuuming assembly 35 performs a vacuuming operation on the vacuuming chamber 36 and also vacuumizes the packaging bag 80 .
  • the heating element 331 starts to heat and its temperature rises, and the heating element 331 heats and seals the sealing position of the packaging bag 80 .
  • the refrigerator 1 vacuumizes and seals the packaging bag 80 through the vacuum packaging structure 3, so as to realize the independent and vacuum packaging of various food materials. Therefore, when a variety of ingredients are vacuum-preserved, they will not interact with each other, and there will be no mutual contamination between the ingredients. Moreover, when taking the ingredients, the packaging bags containing the corresponding ingredients can be taken out respectively. The destruction of the vacuum state of a certain packaging bag will not affect the vacuum state of other packaging bags. Bags containing other ingredients can be kept in a vacuum state without having to vacuum multiple times. Therefore, compared with the traditional refrigerator, the vacuum preservation space of the refrigerator of this embodiment is not limited to the space size of the vacuum drawer, which expands the vacuum preservation range of the refrigerator and improves the vacuum preservation efficiency of the refrigerator.
  • the vacuuming component 35 and the heating component 33 of the vacuum packaging structure 3 can be controlled independently of each other. That is, the vacuuming component 35 may not perform the vacuuming operation on the packaging bag 80 , and the heating component 33 directly performs the sealing operation on the packaging bag 80 .
  • the vacuum encapsulation structure 3 can also be implemented to independently set up a variety of ingredients to avoid mutual contamination of the ingredients.
  • FIG. 5 is a perspective view of the vacuum packaging structure shown in FIG. 2
  • FIG. 6 is an exploded view of the vacuum packaging structure shown in FIG. 5
  • the first support 31 defines a heating cavity 317 for installing the heating element 33
  • the first support 31 includes a first base body 313 and a first cover body 315 .
  • the heating cavity 317 is formed between the first base body 313 and the first cover body 315 .
  • the heating element 311 protrudes out of the heating cavity 317, and the heating element 331 is exposed outside the first seat body 313 so as to be in contact with the packaging bag 80.
  • Heating assembly 33 includes power cord 332 .
  • the power cord is laid flat on the first base. Both ends of the power cord 332 are provided with metal terminals. Two ends of the heating element 331 are respectively connected with metal terminals to realize electrical connection with the power line 332 .
  • the heating assembly 33 further includes a support sheet 333 and a heat insulating plate 334 .
  • the support pieces 333 are disposed on both ends of the power cord 332 .
  • the screw 9 passes through the metal terminal of the power cord 332 and the hole structure on the support piece 333 and is fixedly connected to the first base body 313 .
  • the support sheet 333 extends along the bottom of the heating chamber 317 .
  • the heating element 331 is disposed along the support sheet 333 .
  • the support sheet 333 isolates the heating element 331 from the first seat body 313 to avoid overheating and deformation of the first seat body 313 .
  • the support sheet 333 is provided with an arc-shaped portion 3331 that facilitates the bending of the heating element 331 .
  • the arc portion 3331 covers the bottom of the heating chamber 317 and is hoop-connected to the first seat body 313 .
  • the heating element 331 forms bends at both ends of the power cord 332 .
  • the back-bending portion is bent and arranged corresponding to the arc-shaped portion 3331 .
  • the arc portion 3331 is provided with a limiting groove 3332 for accommodating the heating element 331 .
  • the limiting groove 3332 prevents the heating element 331 from sliding on the arc-shaped portion 3331 , which causes the heating element 331 to be displaced and affects the sealing effect of the packaging bag 80 .
  • the heating element 331 is elongated. Both ends of the heating element 331 are elastically connected to the first base body 313 through elastic elements 335 to ensure that the heating element 331 can be kept straight and stretched.
  • the heating element 331 may be a heating wire or a heating strip, and the elastic element 335 may be a tension spring or a spring.
  • the support piece 333 is provided with a hook 3333 .
  • One end of the elastic member 335 is connected to the heating member 331 , and the other end is hung on the hook 3333 through a ring 3351 .
  • the support sheet 333 is a conductive sheet
  • the heating element 331 is electrically connected to the power line 332 through the support sheet 333 to form a passage.
  • FIG. 7 is a schematic cross-sectional view of the vacuum packaging structure shown in FIG. 5 .
  • the middle portion of the heating element 331 is exposed outside the first seat body 313 and faces the second support 32 . This part of the heating element 331 is used for contacting with the packaging bag 80 to heat and seal the opening of the packaging bag 80 .
  • the length of the middle portion of the heating element 331 is the maximum sealing length of the heating element 331 .
  • the heating assembly 33 also includes a heat shield 334 .
  • the heat insulating plate 334 is disposed between the heating element 331 and the first base body 313 .
  • the heat insulating plate 334 serves the purpose of insulating the heating element 331 .
  • the heat insulating plate 334 can prevent the heating element 331 with a relatively high temperature from directly contacting the first seat body 313, thereby preventing the first seat body 313 from being deformed by overheating.
  • the first seat body 313 maintains a stable shape, which can ensure the airtightness of the vacuuming chamber 36 of the vacuum packaging device 3, and maintain the vacuuming effect of the vacuum packaging device 3.
  • the heat insulating plate 334 can be hooped on the first base body 313 by the heating element 331 .
  • the heat insulating plate 334 may also be fixed on the first seat body 313 by means of bonding, snap connection, or the like.
  • the fixing method of the heat insulating plate 334 is not limited here. As long as the heat insulating plate 334 can be confined between the heating element 331 and the first seat body 313 .
  • the heat insulating plate 334 can ensure that the contact portion between the heating element 331 and the first base body 313 is fully covered.
  • the shape of the heat insulating plate 334 is also elongated.
  • the width of the heat insulating plate 334 is greater than the width of the heating element 331 , and the length thereof is also adapted to the maximum sealing length of the heating element 331 .
  • the heat shield 334 can be an insulating plate to prevent the current from being transmitted from the heating element 331 to the heat shield 334 .
  • the heat insulating plate 334 may be a mica sheet, a heat insulating glass sheet, or the like.
  • a support table 323 may be provided at a position opposite the second support 32 and the heating element 331 .
  • the support table 323 is used to support the packaging bag 80 .
  • the sealing position of the packaging bag 80 is set up and down corresponding to the heating element 331 and the support table 323 .
  • the support table 323 provides a supporting force to the packaging bag 80 .
  • a buffer member 325 is also provided on the support table 323 .
  • the buffer member 325 is a hollow structure.
  • the heating member 331 presses the packaging bag 80 downward the buffer member 325 is deformed under pressure, so that the heating member 331 is recessed in the deformation area of the buffer member 325 .
  • the buffering element 325 will provide a buffer force to the packaging bag 80, so that the heating element 331 and the packaging bag 80 are kept in full contact, and finally the packaging bag 80 is ensured to form a good seal seal.
  • the buffer member 325 may also be a heat insulating member.
  • the buffer member 325 can provide thermal insulation protection to the second support 32 to prevent the heat of the heating member 331 from being transferred to the second support 32, and the long-term high temperature will cause the second support 32 to be overheated and deformed.
  • the second support 32 maintains a stable shape, which can ensure the airtightness of the vacuuming chamber 36 of the vacuum packaging device 3 and maintain the vacuuming effect of the vacuum packaging device 3 .
  • the support table 323 and the buffer member 325 are integrally formed.
  • the buffer member 325 is made of plastic heat insulating material.
  • the heating assembly 33 also includes a thermal protection device 336 .
  • the thermal protection device 336 is provided in the heating chamber 317 .
  • the thermal protection device 336 and the heating element 331 are both connected to the power line in series to form a heating circuit. When the temperature of the thermal protection device 336 reaches the threshold value, the thermal protection device 336 is disconnected, and the heating circuit is disconnected, so that the heating element 331 stops heating.
  • the temperature of thermal protection device 336 may be ambient temperature. Then, when the heating element 331 works abnormally, the heating element 331 is continuously heated, and the temperature of the heating element 331 is relatively high, resulting in a relatively high temperature of the entire environment. The higher ambient temperature puts the first support 31, the second support 32, etc. at risk of thermal deformation. The thermal protection device 336 is then also affected by the ambient temperature.
  • the threshold is the rated temperature at which the thermal protection device 336 fuses. This temperature rating is related to the material of the thermal protection device.
  • the thermal protection device 336 When the temperature of the thermal protection device 336 exceeds the threshold, the thermal protection device 336 will rupture, opening the entire circuit. Then, when the temperature of the heating element 331 rises abnormally, the circuit can be cut off quickly and in time to prevent fire.
  • the thermal protection device 336 faces the heating element 331 and is disposed close to one side of the heating element 331 .
  • the thermal protection device 336 can conduct to the heating temperature of the heating element 331 more timely and accurately.
  • thermal protection device 336 may be a fused thermal protector.
  • the inside of the fusible thermal protector is provided with heat-sensitive particle materials, and when the heat-sensitive particles are overheated, the metal casing will be cut off, thereby realizing the cut-off of the circuit.
  • the threshold value may be 73°C to 90°C.
  • the thermal protection device 336 when the temperature of the thermal protection device 336 is less than the threshold value, the thermal protection device 336 can also resume conduction, so that the heating circuit is connected.
  • Thermal protection device 336 may include a bimetallic sheet for temperature sensing.
  • the bimetal sheet includes an active layer and a passive layer.
  • the thermal expansion coefficients of the active layer and the passive layer are different. When the temperature changes, the deformation of the active layer is greater than that of the passive layer, so that the bimetal as a whole will bend to the side of the passive layer, and the curvature of the active layer and the passive layer will change, so that the bimetal will be deformed, so as to realize the circuit current on and off.
  • the thermal protection device 336 may also be a temperature-controlled switch, a thermal switch, or a thermostat.
  • the bimetallic sheet When the refrigerator is working normally, the bimetallic sheet is in a free state and the contacts are in a closed state.
  • the bimetallic element When the ambient temperature rises to the threshold, the bimetallic element is heated to generate internal stress and act quickly, opening the contacts and cutting off the heating circuit, thereby playing a role in Thermal protection.
  • the contacts When the ambient temperature drops and the ambient temperature is lower than the threshold value, the contacts are automatically closed, and the power is turned on again to restore the conduction of the heating circuit.
  • thermal protection device 336 is blown when the heating circuit is shorted.
  • Thermal protection device 336 may also be a fuse.
  • the thermal protection device 336 includes a resistive wire for conducting current.
  • the thermal protection device 336 can be judged according to the passing current. When the current generated in the circuit is large and exceeds the threshold value, the heat generated by itself will cause the resistance wire to fuse, thereby disconnecting the circuit. This threshold is the rated current that the resistance wire of thermal protection device 336 can pass.
  • the above-mentioned thermal protection device 336 can avoid risks such as short circuit, which may damage the entire vacuum packaging structure.
  • the thermal protection device 336 can be a fuse or a resettable fuse or the like.
  • the heating element 331 and the thermal protection device 336 are provided on the heating circuit.
  • the thermal protection device 336 can conduct the ambient temperature around the heating element 331 . If the heating element 331 continues to work abnormally, and the ambient temperature of the heating element 331 rises to the threshold temperature of the thermal protection device 336, the thermal protection device 336 will be disconnected, so that the heating circuit will be disconnected, so that the heating wire cannot continue to work. Keep your refrigerator safe.
  • the above refrigerator 1 further includes a display control panel 4 .
  • the heating element 331 is electrically connected to the display control board 4 .
  • the working state of the heating element 331 can be displayed on the display control panel 4 .
  • the heating process of the heating element 331 can also be controlled by touching or pressing the display control panel 4 .
  • the vacuuming assembly 35 can also be electrically connected to the display control board 4 . Then the display control panel 4 can also display and control the working state of the vacuuming assembly 35 .
  • the display control panel 4 is installed on the door body 22 .
  • the packaging port 222 is opened on the display control board 4 .
  • the display control panel 4 can check and control the working state of the heating element 331 in time, which is convenient for operation.
  • the thermal protection device 336 includes a temperature sensing device, and the temperature sensing device is still referred to below at 336 for convenience of description.
  • FIG. 8 is an electrical modular schematic diagram of the vacuum packaging structure shown in FIG. 2 .
  • the heating element 33 further includes a temperature sensing device 336 and a control unit 337 .
  • the temperature sensing device 336 is electrically connected to the control unit 337 .
  • the temperature sensing device 336 is used to collect the heating temperature of the heating element 331 to generate an electrical signal.
  • the electrical signal is used to indicate heating temperature information.
  • the temperature sensing device 336 is disposed close to one side of the heating element 331 .
  • the distance between the temperature sensing device 336 and the heating element 331 is as small as possible to ensure that the temperature sensing device 336 can timely and accurately measure and collect the heating temperature of the heating element 331 .
  • the temperature sensing device 336 may be a temperature sensor, a temperature measuring sensor, or the like.
  • the control unit 337 receives the electrical signal, and controls the working state of the heating element 331 according to the electrical signal.
  • the working state of the heating element 331 may include stopping heating, continuing heating, and the like.
  • the control unit 337 can control the heating state of the heating element 331 by controlling a switch or a control circuit according to the received electrical signal.
  • the above-mentioned heating assembly 33 uses the temperature sensing device 336 and the control unit 337 to prevent the heating temperature of the heating element 331 from being high, thereby causing the refrigerator 1 to be damaged and deformed due to overheating; it can also avoid that the heating temperature of the heating element 331 is not high enough to meet the packaging requirements.
  • the temperature requirement for heat sealing of the bag 80 affects the sealing effect of the packaging bag 80 .
  • the control unit 337 controls the heating element 331 to stop heating.
  • the temperature sensing device 336 senses that the heating temperature of the heating element 331 is lower than the first threshold value, the heating element 331 is always energized and continues to heat.
  • the control unit 337 controls to turn off the heating circuit, and the heating element 331 stops heating.
  • the first threshold value may be a safe temperature at which the heating element 331 is heated, and at this safe temperature, the components of the first support 31 , the second support 32 and the door body 22 will not be overheated and deformed.
  • the above heating assembly 33 can control the maximum temperature of the heating element 331 through the control unit 337 to ensure that the termination temperature reached by the heating element 331 is lower than the first threshold temperature each time the package is heated. After repeated heating, the termination temperature of the heating element 331 becomes higher and higher, so that the refrigerator 1 is overheated, damaged and deformed.
  • the heating assembly 33 further includes a timing unit 338 .
  • the timing unit 338 may be a timer, a stopwatch, or the like.
  • the timing unit 338 is connected in communication with the control unit 337 .
  • the timing unit 338 starts timing the heating time of the heating element 331 .
  • the size of the second threshold temperature is set to be the packaging temperature at which the packaging bag 80 can be heat-sealed.
  • the second threshold temperature is less than the first threshold.
  • the time threshold can be set as follows: starting from the second threshold temperature, the heating element 331 continues to heat for a certain heating time, and continues to heat the packaging bag 80 for a certain period of time to ensure that the sealing action of the packaging bag 80 is completed. Moreover, the final temperature when the heating element 331 stops heating is lower than the first threshold temperature, so as to ensure that the refrigerator 1 can be used safely.
  • the above-mentioned heating assembly 33 can ensure that the heating termination temperature of the heating element 331 is lower than the first threshold, thereby ensuring that the maximum temperature of the heating element 331 does not exceed the first threshold when heating the package each time. a threshold.
  • the timing unit 338 starts timing only when the heating temperature of the heating element 331 reaches the second threshold. Therefore, even if the initial temperature of the heating element 331 is different, the final termination temperature of the heating element 331 will not be affected. It is ensured that the termination temperature of the heating element 331 is lower than the first threshold value, thereby improving the safety of the refrigerator 1 in use.
  • the above refrigerator 1 further includes a display control panel 4 .
  • the heating element 331 , the temperature sensing device 336 and the control unit 337 are respectively electrically connected to the display control board 4 .
  • the working state of the heating assembly 33 can be displayed on the display control panel 4 .
  • the display control panel 4 can also display the temperature value collected by the temperature sensing device 336, and the control process of the heating element 331 by the control unit 337 and other information.
  • the heating process of the heating element 331 can also be controlled by touching or pressing the display control panel 4 .
  • the vacuuming assembly 35 may be electrically connected to the display control board 4 . Then the display control panel 4 can also display and control the working state of the vacuuming assembly 35 .
  • the display control panel 4 is installed on the door body 22 .
  • the packaging port 222 is opened on the display control board 4 .
  • the display control panel 4 can check and control the working state of the heating element 331 in time, which is convenient for operation.
  • the present disclosure also provides a control method of a refrigerator.
  • the control method of the refrigerator is used to control the operation of the vacuum packaging structure of the refrigerator.
  • FIG. 9 is a flowchart of the control method of the refrigerator according to the present embodiment.
  • the control method of the refrigerator includes:
  • Step S11 controlling the first support and the second support to move toward each other to clamp the packaging bag.
  • the driving member drives the first support and the second support to move toward each other, so that the first support is close to the second support.
  • the contact positions of the first support and the second support should be kept in a sealed connection, so as to ensure that a sealed vacuum chamber is formed between the first support and the second support.
  • FIG. 10 is a specific flow chart of the control method shown in FIG. 9 .
  • some embodiments of the present disclosure further include step S12 , vacuuming the packaging bag.
  • the opening of the packaging bag is located in the vacuum chamber. If the vacuuming operation is performed in the vacuuming chamber, the air in the packaging bag will be discharged from the opening until the predetermined vacuum preservation state is reached.
  • the predetermined vacuum preservation state may be close to a vacuum state.
  • step S12 may be omitted. That is, the packaging bag can be directly packaged without vacuuming.
  • step S13 the heating element is controlled to heat, and the packaging bag is heated and sealed.
  • the heating element located on the first support is energized and heated, so that the heating element heats and seals the packaging bag in contact.
  • step S14 during the heating process of the heating element, the heating temperature of the heating element is collected to generate an electrical signal, and the working state of the heating element is controlled according to the electrical signal.
  • the temperature sensing device collects the heating temperature of the heating element in real time, and keeps real-time monitoring of the heating temperature of the heating element. And, the temperature sensing device generates an electrical signal with the heating temperature information, and sends the electrical signal to the control unit.
  • FIG. 11 is a specific flowchart of step S14 of the control method shown in FIG. 9 .
  • step S14 may specifically include:
  • Step S141 it is determined whether the heating temperature reaches a first threshold.
  • the control unit receives the electrical signal, and the control unit controls the heating element to continue heating or stop heating. If the first threshold value is reached, step S142 is performed to control the heating element to stop heating.
  • the first threshold temperature and the temperature above the first threshold temperature can cause overheating deformation of the first support, the second support and the components of the door body.
  • the first threshold may be a safe temperature at which the heating element is heated. At this safe temperature, the first support, the second support and the components of the door will not be overheated and deformed, thereby improving the safety of the refrigerator.
  • step S143 is performed.
  • the heating time of the heating element starts to be counted, and when the heating time reaches the time threshold value. Then go to step S142 to control the heating element to stop heating.
  • the second threshold is smaller than the first threshold.
  • the second threshold temperature is the packaging temperature at which the package can be heat sealed.
  • the packaging bag starts to be packaged.
  • the timing unit starts timing, and continues to heat the heating element.
  • the packaging bag completes the sealing work.
  • S142 is performed, and the control unit controls the heating element to stop heating.
  • the above-mentioned control method of the refrigerator can control the working state of the heating element according to the electrical signal. By collecting the heating temperature of the heating element, the heating temperature of the heating element is controlled in real time, so as to avoid the high heating temperature of the heating element and the overheating damage and deformation of the refrigerator. At the same time, the above-mentioned control method of the refrigerator can also avoid insufficient heating temperature of the heating element, which cannot meet the temperature requirements of the heating and sealing of the packaging bag, and affects the sealing effect of the packaging bag.

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Abstract

一种冰箱及其控制方法，所述冰箱（1）包括箱体（2）及设于箱体（2）上的封装结构，所述封装结构包括第一支座（31）、第二支座（32）及加热组件（33），所述第一支座（31）与第二支座（32）可相向运动以夹持包装袋（80），所述加热组件（33）包括加热件（331）及隔热板（334），所述加热件（331）设于所述第一支座（31）的外侧，所述加热件（331）用于对所述包装袋（80）进行加热，所述隔热板（334）设于所述加热件（331）与所述第一支座（31）之间，从而防止塑胶制成的第一座体（313）受热变形。所述加热组件（33）还可包括温度感应装置和控制单元（337），或是包括热保护装置（336）。

Description

冰箱及其控制方法
相关申请的交叉引用
本申请要求在2020年7月1日提交中国专利局、申请号为202010632736.6、发明名称为“冰箱”，在2020年7月1日提交中国专利局、申请号为202010627815.8、发明名称为“冰箱”，以及2020年7月1日提交中国专利局、申请号为202010632717.3、发明名称为“冰箱及其控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及一种家电，特别涉及一种冰箱及其控制方法。
背景技术
冰箱是保持低温的一种器具，通过使食物或其他物品保持恒定低温冷态以避免其腐败。随着人们生活水平的日益提高，人们对食材的保鲜需求也越来越高。
通常，冰箱内部往往存储有多种食材，例如：蔬菜、水果、熟食、面食等。对于不同食材，往往会散发一定的气味或产生一定的挥发物，这些气味及挥发物往往会使冰箱的内部污染。因此，多种食材同时放置于冰箱内，会导致冰箱内的食材发生相互污染。
发明内容
第一方面，本公开一些实施例提供了一种冰箱，包括：
箱体及设置于所述箱体上的封装结构；
所述封装结构包括第一支座、第二支座及加热组件，所述第一支座与所述第二支座相向运动以夹持包装袋；
所述加热组件包括加热件及隔热板，所述加热件设于所述第一支座的外侧，用于对所述包装袋进行加热，所述隔热板设于所述加热件与所述第一支座之间。
第二方面，本公开一些实施例提供了一种冰箱，包括：箱体及设于箱体内的封装结构；
所述封装结构包括第一支座、第二支座及加热组件；所述第一支座与所述第二支座可相向运动以夹持包装袋；所述加热组件设于所述第一支座内；所述加热组件包括加热件及热保护装置；所述加热件用于对所述包装袋进行加热密封；所述热保护装置与所述加热件电连接形成加热电路，当所述热保护装置的温度达到阈值时，所述热保护装置断开，使所述加热电路断路。
第三方面，本公开一些实施例提供了一种冰箱，包括：
箱体及设置于所述箱体上的封装结构，所述封装结构包括第一支座、第二支座及加热组件，所述第一支座与所述第二支座可相向运动以夹持包装袋；
所述加热组件设于所述第一支座内；所述加热组件包括加热件、温度感应装置及控制单元；所述加热件用于对所述包装袋进行加热密封；所述温度感应装置与所述控制单元电连接，用于采集所述加热件的加热温度以产生电信号；所述控制单元接收所述电信号，并根据所述电信号控制所述加热件的工作状态。
附图说明
图1为根据本公开一些实施方式的冰箱的立体图；
图2为图1所示的冰箱的门体的爆炸图；
图3为图2所示的门体的剖视图；
图4为图3所示的门体A部分的局部放大图；
图5为图2所示的真空封装结构的立体图；
图6为图5所示的真空封装结构的爆炸图；
图7为图5所示的真空封装结构的剖面示意图；
图8为图2所示的真空封装结构的电学模块化示意图；
图9为本实施方式的冰箱的控制方法的流程图；
图10为图9所示的控制方法的具体流程图；
图11为图9所示的控制方法的步骤S14的具体流程图。
具体实施方式
下面结合具体实施例对本公开作进一步说明，以使本领域的技术人员可以更好的理解本公开并能予以实施，但本公开所要求保护的范围并不局限于具体实施方式中所描述的范围。需要说明的是，在不冲突的情况下，本申请 中的实施例及实施例中的特征可以相互任意组合。
需要说明的是，本公开实施例中所有方向性指示(诸如上、下、左、右、前、后......)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应的随之改变。
另外，在本公开中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本公开要求的保护范围之内。
对于含有真空封装设备的冰箱而言，真空封装设备需要对包装袋进行加热塑封，以保持真空密封状态。由于冰箱内部大多部件为塑料、塑胶等材料制作而成，则在对包装袋进行加热的过程中，如果该真空封装设备的加热温度出现异常，导致冰箱的部件受热变形，甚至过热发生火灾等问题，严重影响冰箱的安全性。
本公开一些实施例提供一种冰箱1。该冰箱可以为双开门、多开门、法式开门、十字开门等开门形式的冰箱。此处对冰箱的种类不做限定。
图1为本公开一些实施例提供的冰箱的立体图，如图1所示，冰箱1包括箱体2。箱体2大致呈长方体。箱体2包括门体22及用于存储食材的储藏室。储藏室的一侧开口。门体22设有储藏室的开口处，并可封闭储藏室。并且，储藏室的内部形成该冰箱1的存储空间。该箱体2的内部根据不同的使用功能可以划分为多个独立的功能空间，可以包括冷藏室、冷冻室、速冻室及解冻室等。
对于多个功能空间的排布方式，通常，冷藏室位于箱体2的上方，冷冻室位于箱体2的下方。可以理解，对于其他类型的冰箱，对于各个空间于箱体2上的分布方式，还可以为其他方式，此处对此并不做限定。
各个功能空间之间可以分别设置相互独立的门体22，以密封该功能空间。或者，多个功能空间也可以共用一个门体22，以同时密封该多个功能空间。此处对门体22与功能空间的对应情况也不做限定。
图2为图1所示的冰箱的门体的爆炸图，图3为图2所示的门体的剖视 图。如图2及图3所示，冰箱1还包括设于箱体2上的封装结构。该封装结构可以设于箱体2的门体22的内侧壁或外侧壁上、也可以设于储藏室的内侧壁或外侧壁上。为满足大多用户的使用习惯，封装结构设置于箱体2的门体22的外侧壁上。门体22的外侧壁上开设有用于安装封装结构的安装槽221。封装机构通过螺钉9、膨胀螺钉等固定安装于安装槽221内。并且，该安装槽221开设于门体22的中上方，则该封装结构位于冰箱1的中部位置。用户可以直接面向该封装结构，对封装结构的操作高度也符合人体工学设计要求。
封装结构包括第一支座31、第二支座32及加热组件33。第一支座31与第二支座32为封装结构的主要框架结构。第一支座31与第二支座32可以相向运动以夹持包装袋80。通过夹持固定包装袋80，封装结构以对包装袋80进行密封封装。当包装袋80密封封装完成之后，则第一支座31与第二支座32可以相互分离，使包装袋80可以从封装结构上取下，完成密封封装。此处对封装结构的种类不做限定，只要封装结构能够实现对食材的密封封装即可。
对于第一支座31与第二支座32之间的运动关系，可以为：第一支座31朝向或背向第二支座32运动；或者，第二支座32朝向或背向第一支座31运动；又或者是，第一支座31与第二支座32均发生相向或相背运动。此处对第一支座31与第二支座32两者之间的运动方式不做限定，只要能够使第一支座31与第二支座32之间能够相互靠近及能够相互分离运动即可。在本公开一些实施方式中，封装结构还包括驱动组件34。驱动组件34驱动第一支座31与第二支座32相向或相背运动。驱动组件34可以控制第一支座31及\或第二支座32自动升降运动，实现自动真空封装，提高冰箱1的自动化性能。在其他实施方式中，驱动组件34还可以省略。则第一支座31或第二支座32可以通过手动驱动运动，此处对第一支座31或第二支座32的运动方式不做限定。
对于第一支座31与第二支座32的设置位置，可以根据用户的使用习惯、根据冰箱1门体22的空间划分等确定。第一支座31与第二支座32可以为上、下相对设置于门体22上；或者，第一支座31与第二支座32还可以为左、右相对设置于门体22上；甚至，第一支座31与第二支座32均可以倾斜设置于门体22上。其中，此处对“上、下、左、右”的描述，即为冰箱1正立、竖直放置情况下，正对冰箱时的上、下、左、右等方位。
具体在本实施方式中，第一支座31设于第二支座32的上方。并且，第 一支座31相对于第二支座32向下运动，使第一支座31与第二支座32相互对接。第一支座31与第二支座32的上、下相对设置的方式可以更符合用户的使用习惯，第一支座31向下压持第二支座32上的包装袋80，方便用户把持包装袋80的左右两端，可以避免包装袋80内食材倾倒等。
加热组件33包括加热件331。加热件331用于对包装袋80进行加热密封。加热组件33设于第一支座31上，包装袋80放置于第二支座32上。当第一支座31向下运动时，加热组件33随第一支座31的运动，第一支座31压持于第二支座32上，加热件331压持包装袋80。则加热件331会对包装袋80的开口进行加热密封。
通过该封装结构可以是使食材之间实现独立包装。多种食材在冰箱1内保存的时候，食材密封在包装袋80内，食材之间不会产生相互影响，避免食材之间相互污染。
在本公开一些实施方式中，封装结构可以为真空封装结构3。真空封装结构3用于对包装袋80抽真空。真空封装结构3可以进一步对食材先进行抽真空，再密封保存，提高了食材的保鲜度。
图4为图3所示的门体A部分的局部放大图，参阅图4，，第一支座31设有第一空腔311，第二支座32设有第二空腔322。第一支座31与第二支座32的形状相适配。当第一支座31与第二支座32相向运动，相互对接的时候，第一空腔311与第二空腔322围成密封的抽真空腔36。
门体22上开设有封装口222。该封装口222与抽真空腔36相对。则包装袋80具有开口的一端可以从封装口222伸入，可以从门体22的外侧直接进入到抽真空腔36。包装袋80的开口位于抽真空腔36内，包装袋80的内部空间通过开口与抽真空腔36连通，并形成一完整的密闭腔。
第一空腔311或第二空腔321内设有限位部，用于限制插接于抽真空腔36内的包装袋80的插入位置，避免包装袋80的开口位置伸出抽真空腔36。具体地，限位部为设置于第一空腔311的限位筋314，限位筋314的高度大于第一空腔311的深度。用户将包装袋插入抽真空腔36时，限位筋314可阻挡包装袋继续向内插入。并且，限位筋314与第二空腔322的底部之间存在间隙，以保持通畅过气。
其他实施方式中，该抽真空腔36还可以设置到位检测装置，具体地，可以采用微波传感器或红外传感器，用于检测抽真空腔36内是否插入包装袋， 发出包装袋是否到位信号，控制抽真空操作。
真空封装结构3包括抽真空组件35。抽真空组件35与抽真空腔36相连通。抽真空组件35对抽真空腔36进行抽真空操作，从而对位于整个密闭腔进行抽真空，实现对包装袋80的抽真空操作。
参阅图4，第一支座31于第一空腔311的外周开设有第一密封槽，第一密封槽内设有第一密封圈312。第二支座32于第二空腔322的外周开设有第二密封槽。第二密封槽内也设有第二密封圈322。第一支座31与第二支座32之间通过第一密封圈312与第二密封圈322保持密封连接，提高抽真空腔36的密封性。
当第一支座31向下运动时，加热组件33随第一支座31的运动，第一支座31压持于第二支座32上，加热件331压持包装袋80，形成封闭的抽真空腔36。抽真空组件35对抽真空腔36进行抽真空操作，同时也对包装袋80进行抽真空。当包装袋80完成抽真空操作时候，则加热件331开始加热其温度升高，加热件331对包装袋80的封口位置进行加热密封。
因此，相对于传统的具有真空抽屉的冰箱，冰箱1通过真空封装结构3对包装袋80进行抽真空，并进行封装，从而实现对多种食材的独立、真空包装。因此，多种食材在进行真空保鲜的时候，不会产生相互影响，食材之间不会发生相互污染。并且，在取用食材的时候，可以分别取出装有相应食材的包装袋。对某一包装袋的真空状态的破坏，不会影响其他包装袋的真空状态。装有其他食材的包装袋可以一直保持真空状态，不必发生多次抽真空的情况。因此，相对于传统的冰箱，本实施方式的冰箱的真空保鲜的空间范围不限于真空抽屉的空间大小，扩大了冰箱的真空保鲜的范围，提高冰箱的真空保鲜的效率。
在其他实施方式中，真空封装结构3的抽真空组件35及加热组件33可以相互独立控制。即，抽真空组件35可以不对包装袋80进行抽真空操作，加热组件33直接对包装袋80进行密封操作。该真空封装结构3同样可以实现，将多种食材之间独立设置，避免食材之间相互污染。
图5为图2所示的真空封装结构的立体图，图6为图5所示的真空封装结构的爆炸图。参阅图5及图6，第一支座31开设有用于安装加热组件33的加热腔317。第一支座31包括第一座体313及第一盖体315。加热腔317形成于第一座体313及第一盖体315之间。加热件311穿出加热腔317，且加热 件331外露于第一座体313外侧，以与包装袋80接触。
加热组件33包括电源线332。电源线平铺设于第一底座上。电源线332的两端设有金属端子。加热件331的两端分别与金属端子连接，以实现与电源线332的电连接。
由于加热件331工作时温度较高，为防止塑胶制成的第一座体313受热变形，则在加热件331与第一座体313之间需要进行隔热保护措施。加热组件33还包括支撑片333及隔热板334。
支撑片333设于电源线332的两端。螺钉9穿过电源线332的金属端子，及支撑片333上的孔结构与第一座体313固定连接。
支撑片333沿加热腔317的底部延伸设置。加热件331沿支撑片333设置。支撑片333在加热件331与第一座体313之间进行隔离，避免第一座体313过热变形。具体地，支撑片333设有便于加热件331回弯的弧形部3331。并且，该弧形部3331将加热腔317的底部包覆，并与第一座体313抱箍连接。加热件331于电源线332的两端形成回弯部。回弯部对应弧形部3331弯折设置。并且，弧形部3331设有用于收容加热件331的限位槽3332。该限位槽3332防止加热件331在弧形部3331上滑动，而导致加热件331移位，影响包装袋80的密封效果。
并且，加热件331为狭长形。加热件331的两端通过弹性件335与第一座体313弹性连接，以保证加热件331能够保持平直拉伸。加热件331可以为加热丝或加热条等，弹性件335可以为拉簧或弹簧等。
具体地，支撑片333上设有卡勾3333。弹性件335的一端与加热件331连接，另一端通过一圆环3351挂设于该卡勾3333上。并且，支撑片333为导电片，则加热件331通过支撑片333与电源线332实现电连接，形成通路。
图7为图5所示的真空封装结构的剖面示意图。参阅图7，加热件331的中间部分外露于第一座体313的外侧，且朝向第二支座32。该部分的加热件331用于与包装袋80接触，对包装袋80的开口进行加热封装。加热件331的中间部分的长度即为加热件331的最大密封长度。
加热组件33还包括隔热板334。隔热板334设置于加热件331与第一座体313之间。隔热板334起到隔离加热件331的目的。隔热板334可以防止较高温度的加热件331直接与第一座体313接触，避免第一座体313过热变形。第一座体313保持形状稳定，可以保证真空封装设备3的抽真空腔36的 气密性，保持该真空封装设备3的抽真空效果。
具体地，隔热板334可以通过加热件331抱箍在第一座体313上。在其他实施方式中，隔热板334还可以通过粘接、卡合连接等方式固定于第一座体313上。此处对隔热板334的固定方式不做限定。只要能够将隔热板334限位于加热件331与第一座体313之间即可。
隔热板334能够保证全面覆盖加热件331与第一座体313间的接触部分。隔热板334的形状也为狭长形。且隔热板334的宽度大于加热件331的宽度，其长度也与加热件331的最大密封长度相适配。
该隔热板334可以为绝缘板，避免电流从加热件331上传递到隔热板334上。隔热板334可以为云母片、隔热玻璃片等。
参阅图4，第二支座32与加热件331相对位置处可以设有支撑台323。该支撑台323用于支撑包装袋80。包装袋80的封口位置与加热件331及支撑台323上下对应设置。当加热件331向下运动接触到包装袋80的时候，则支撑台323对包装袋80提供一个支撑力。
并且，在该支撑台323上还设有缓冲件325。该缓冲件325为中空结构。当加热件331向下压持包装袋80的时候，缓冲件325受压发生形变，使加热件331内陷于缓冲件325的形变区内。加热件331对包装袋80的封口位置进行加热的同时，缓冲件325会对包装袋80提供缓冲力，使加热件331与包装袋80之间保持充分接触，最终保证包装袋80形成良好的密封封口。
并且，该缓冲件325还可以为隔热件。该缓冲件325可以对第二支座32提供隔热保护作用，避免加热件331的热量传递到第二支座32上，长期温度较高会导致第二支座32发生过热变形。第二支座32保持形状稳定，可以保证真空封装设备3的抽真空腔36的气密性，保持该真空封装设备3的抽真空效果。
具体在本实施方式中，支撑台323与缓冲件325为一体结构。缓冲件325为塑胶隔热材料制成。
在本公开的一些实施方式中，加热组件33还包括热保护装置336。热保护装置336设于加热腔317内。热保护装置336与加热件331均串联于电源线上，则形成加热电路。当热保护装置336的温度达到阈值的时候，热保护装置336断开，使加热电路断路，从而使加热件331停止加热。
热保护装置336的温度可以为环境温度。则当加热件331工作异常，加 热件331不断持续加热，加热件331的温度较高，导致整个环境温度较高。较高的环境温度使第一支座31、第二支座32等存在受热变形的风险。则热保护装置336也受环境温度的影响。阈值为该热保护装置336发生熔断的额定温度。该额定温度与热保护装置的材料有关。
当热保护装置336的温度超过该阈值的时候，该热保护装置336会断裂，使整个电路断路。则当加热件331的温度异常升高的时候，可以迅速及时地切断电路、达到防止火灾的作用。
并且，热保护装置336正对加热件331，且靠近加热件331的一侧设置。热保护装置336能够更及时、准确的传导到加热件331的加热温度。
在一些实施方式中，热保护装置336可以为熔断式热保护器。该熔断式热保护器的内部设有热敏颗粒材料，当热敏颗粒过热则会金属外壳会切断，从而实现电路的切断。并且，阈值可以为73℃～90℃。
在另一种实施方式中，当热保护装置336的温度小于阈值的时候，热保护装置336还可以恢复导通，使加热电路通路。
热保护装置336可以包括用于感温的双金属片。双金属片包括主动层及被动层。主动层与被动层的热膨胀系数不同。当温度变化时，主动层的形变要大于被动层的形变，从而双金属片整体就会向被动层一侧弯曲，主动层与被动层的曲率发生变化从而使双金属片产生形变，从而实现电路电流的通断。热保护装置336还可以为温控开关、热敏开关、温控器。
在冰箱正常工作时，双金属片处于自由状态，触点处于闭合状态，当环境温度升高至阈值时，双金属元件受热产生内应力而迅速动作，打开触点，切断加热电路，从而起到热保护作用。当环境温度下降，环境温度小于阈值的时候，触点自动闭合，再次通电，使加热电路恢复导通。
在另一种实施方式中，当加热电路发生短路的时候，热保护装置336发生熔断。热保护装置336还可以为熔断器。
该热保护装置336包括用于导通电流的电阻丝。热保护装置336可以根据其通过电流进行判断，当电路中产生的电流较大，超过阈值，以其自身产生的热量会使电阻丝熔断，从而使电路断开。该阈值为热保护装置336的电阻丝可以通过的额定电流。上述热保护装置336可以避免发生短路等风险，使整个真空封装结构受损。该热保护装置336可以为保险丝或可恢复式保险丝等。
在上述冰箱的真空封装设置中，其加热电路上设有加热件331及热保护装置336。该热保护装置336可以传导加热件331周围的环境温度。如果加热件331异常持续工作的时候，加热件331的周围温度上升至热保护装置336的阈值温度的时候，则该热保护装置336断开，使加热电路断路，使加热丝无法继续工作，从而保护冰箱安全。上述冰箱1还包括显控板4。加热件331与显控板4电连接。加热件331的工作状态可以通过显控板4显示出来。并且，通过触控或按压显控板4，也可以对加热件331的加热过程进行控制。
并且，抽真空组件35也可以与显控板4电连接。则显控板4还可以显示及控制抽真空组件35的工作状态。
在一些实施方式中，显控板4安装于门体22上。封装口222开设于显控板4上。当用户把持包装袋80在封装口222进行真空封装时，通过显控板4可以及时查看及控制加热件331的工作状态，便于操作。
在本公开的一些实施方式中，热保护装置336包括温度感应装置，用便于说明下述仍以336指代温度感应装置。图8为图2所示的真空封装结构的电学模块化示意图，参阅图8，加热组件33还包括温度感应装置336及控制单元337。温度感应装置336与控制单元337电连接。
温度感应装置336用于采集加热件331的加热温度以产生电信号。该电信号用于指示加热温度信息。并且，温度感应装置336靠近加热件331的一侧设置。温度感应装置336与加热件331的距离尽量小，以保证温度感应装置336能够及时、准确的测量、采集到加热件331的加热温度。温度感应装置336可以为温度传感器、测温传感器等。
控制单元337接收电信号，并根据电信号控制加热件331的工作状态。加热件331的工作状态可以包括停止加热、继续加热等。控制单元337可以根据接收的电信号，通过控制开关或控制电路等实现对加热件331的加热状态的控制。
上述加热组件33通过温度感应装置336及控制单元337，避免加热件331的加热温度较高，而使冰箱1过热受损、变形；也可以避免加热件331的加热温度不足够高，不能满足包装袋80的加热密封的温度要求，影响包装袋80的密封效果。
具体在本实施方式中，当加热温度达到第一阈值，控制单元337控制加热件331停止加热。温度感应装置336感应加热件331的加热温度低于第一 阈值的时候，则加热件331一直通电，继续加热。当加热件331的温度达到第一阈值的时候，控制单元337控制断开加热电路，则加热件331停止加热。第一阈值可以为加热件331加热的安全温度，在该安全温度下，第一支座31、第二支座32及门体22的各部件不会过热变形。
上述加热组件33通过控制单元337可以实现对加热件331的最高温度进行控制，保证在每次加热封装的时候，加热件331所达到的终止温度均低于第一阈值温度。避免多次加热之后，加热件331的终止温度越来越高，而使冰箱1过热受损、变形。
在本公开一些实施方式中，加热组件33还包括计时单元338。计时单元338可以为计时器、秒表等。
计时单元338与控制单元337通信连接。加热温度达到第二阈值，计时单元338对加热件331的加热时间开始计时。第二阈值温度的大小设定为：可以使包装袋80受热密封的封装温度。第二阈值温小于第一阈值。当加热件331的加热温度到达该第二阈值温度的时候，则包装袋80开始进行封装。此时，计时单元338开始计时，当加热时间达到时间阈值的时候，则该包装袋80完成密封工作。控制单元337控制加热件331停止加热。
该时间阈值的设定可以为：从第二阈值温度开始，加热件331再继续加热一定的加热时长，对包装袋80持续加热一定时间，则保证包装袋80封口动作完成。并且，最终加热件331停止加热时的终止温度小于第一阈值温度，以保证冰箱1能够安全使用。
上述加热组件33通过设定第二阈值及时间阈值，可以保证加热件331加热的终止温度均低于第一阈值，从而保证加热件331在每次加热封装的时候，其最高温度不会超过第一阈值。
即使，在多次加热封装使用之后，则加热件331具有较高的初始温度，则计时单元338也只有在加热件331的加热温度达到第二阈值的时候，才计时开始。因此，即使加热件331的初始温度不同，也不会影响加热件331最终的终止温度。保证加热件331的终止温度低于第一阈值，提高冰箱1使用的安全性。
上述冰箱1还包括显控板4。加热件331、温度感应装置336及控制单元337分别与显控板4电连接。加热组件33的工作状态可以通过显控板4显示出来。并且，显控板4还可以显示温度感应装置336采集的温度值，及控制 单元337对加热件331的控制过程等信息。并且，通过触控或按压显控板4，也可以对加热件331的加热过程进行控制。
在本公开的一些实施方式中，抽真空组件35可以与显控板4电连接。则显控板4还可以显示及控制抽真空组件35的工作状态。
在一些实施方式中，显控板4安装于门体22上。封装口222开设于显控板4上。当用户把持包装袋80在封装口222进行真空封装时，通过显控板4可以及时查看及控制加热件331的工作状态，便于操作。
本公开还提供一种冰箱的控制方法。该冰箱的控制方法用于控制冰箱的真空封装结构的工作。
图9为本实施方式的冰箱的控制方法的流程图，参阅图9，冰箱的控制方法包括：
步骤S11，控制第一支座与第二支座相向运动，夹持包装袋。
驱动件驱动第一支座与第二支座相向运动，以使第一支座靠近第二支座。并且，第一支座与第二支座的接触位置要保持密封连接，以保证第一支座与第二支座之间形成密封的抽真空腔。
图10为图9所示的控制方法的具体流程图，参阅图10，本公开一些实施方式，还包括步骤S12，对包装袋进行抽真空。
包装袋的开口位于抽真空腔内。该抽真空腔内进行抽真空操作，则包装袋内的空气会从开口处排出，直至达到预定的真空保鲜状态。该预定的真空保鲜状态可以接近于真空状态。
可以理解，在其他实施方式中，步骤S12可以省略。即对于包装袋可以不抽真空，直接进行封装。
步骤S13，控制加热件加热，对所述包装袋加热封装。
当包装袋完成抽真空操作，需要对包装袋的开口进行封装操作。
位于第一支座上的加热件通电进行加热，以使加热件对接触到的包装袋进行加热密封。
步骤S14，在加热件加热的过程中，采集所述加热件的加热温度以产生电信号，根据所述电信号控制所述加热件的工作状态。
在加热件的加热过程中，加热件的加热温度会逐渐升高。温度感应装置实时采集加热件的加热温度，对加热件的加热温度保持实时监控。并且，温度感应装置产生带有该加热温度信息的电信号，并将该电信号发送给控制单 元。
图11为图9所示的控制方法的步骤S14的具体流程图，参阅图11，步骤S14具体可以包括：
步骤S141，判断加热温度是否达到第一阈值。
控制单元接收该电信号，控制单元控制加热件继续加热或停止加热。如果达到第一阈值，则进行步骤S142，控制所述加热件停止加热。
第一阈值温度及其以上温度可以使第一支座、第二支座及门体的各部件发生过热变形。
温度感应装置感应加热件的温度低于第一阈值的时候，则加热件一直通电，继续加热。当加热件的温度达到第一阈值的时候，控制单元控制断开加热电路，则加热件停止加热。第一阈值可以为加热件加热的安全温度，在该安全温度下，第一支座、第二支座及门体的各部件不会过热变形，提高冰箱使用的安全性。
如果没有达到第一阈值，则进行步骤S143，在加热温度达到第二阈值时，对加热件的加热时间开始计时，当加热时间达到时间阈值的时候。则进行步骤S142，控制加热件停止加热。
其中，第二阈值小于第一阈值。第二阈值温度为可以使包装袋能够加热密封的封装温度。当加热件的温度到达该第二阈值温度的时候，则包装袋开始进行封装。此时，计时单元开始计时，对加热件持续进行加热，当加热时间达到时间阈值的时候，则该包装袋完成密封工作。当完成密封封装工作的时候，则进行S142，控制单元控制加热件停止加热。
上述冰箱的控制方法，可以根据所述电信号控制加热件的工作状态。通过采集加热件的加热温度，实时对加热件的加热温度进行控制，避免加热件的加热温度较高，而使冰箱过热受损、变形。同时，上述冰箱的控制方法也可以避免加热件的加热温度不足，不能满足包装袋的加热密封的温度要求，影响包装袋的密封效果。
虽然已参照几个典型实施方式描述了本发明，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本发明能够以多种形式具体实施而不脱离发明的精神或实质，所以应当理解，上述实施方式不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (30)

  1. 一种冰箱，其特征在于，包括：箱体及设于箱体上的封装结构；
    所述封装结构包括第一支座、第二支座及加热组件，所述第一支座与所述第二支座相向运动以夹持包装袋；
    所述加热组件包括加热件及隔热板，所述加热件设于所述第一支座的外侧，所述加热件用于对所述包装袋进行加热，所述隔热板设于所述加热件与所述第一支座之间。
  2. 根据权利要求1所述的冰箱，其特征在于，所述隔热板由所述加热件抱箍于所述第一支座上。
  3. 根据权利要求1所述的冰箱，其特征在于，所述隔热板为绝缘板。
  4. 根据权利要求1所述的冰箱，其特征在于，所述隔热板全面覆盖所述加热件与所述第一支座之间的接触部分。
  5. 根据权利要求1所述的冰箱，其特征在于，所述加热件朝向所述第一支座的外侧面设有绝缘层，所述绝缘层包覆于所述加热件的外侧。
  6. 根据权利要求1所述的冰箱，其特征在于，所述第二支座与所述加热件相对位置处设有支撑台，所述支撑台用于支撑包装袋。
  7. 根据权利要求6所述的冰箱，其特征在于，所述支撑台上还设有缓冲件，所述加热件可向下压持所述包装袋，所述缓冲件受压发生形变，使所述加热件可内陷于所述缓冲件的形变区内。
  8. 根据权利要求7所述的冰箱，其特征在于，所述缓冲件为中空结构。
  9. 根据权利要求8所述的冰箱，其特征在于，所述缓冲件为隔热件。
  10. 根据权利要求1所述的冰箱，其特征在于，所述封装结构为真空封装结构，所述真空封装结构包括抽真空组件及驱动组件，所述驱动组件驱动所述第一支座与所述第二支座相向或相背运动，并且所述第一支座与所述第二支座相互对接可形成抽真空腔，所述抽真空组件用于对位于抽真空腔内的包装袋进行抽真空。
  11. 一种冰箱，其特征在于，包括：箱体及设于箱体上的封装结构；
    所述封装结构包括第一支座、第二支座及加热组件，所述第一支座与所述第二支座可相向运动以夹持包装袋；
    所述加热组件设于所述第一支座内；所述加热组件包括加热件、温度感 应装置及控制单元；所述加热件用于对所述包装袋进行加热密封；所述温度感应装置与所述控制单元电连接，所述温度感应装置用于采集所述加热件的加热温度以产生电信号；所述控制单元接收所述电信号，并根据所述电信号控制所述加热件的工作状态。
  12. 根据权利要求11所述的冰箱，其特征在于，当所述加热温度达到第一阈值，所述控制单元控制所述加热件停止加热。
  13. 根据权利要求12所述的冰箱，其特征在于，还包括计时单元，所述计时单元用于在所述加热温度达到第二阈值时对所述加热件的加热时间开始计时；所述计时单元与所述控制单元通信连接；所述控制单元还用于当所述加热时间达到时间阈值的时候，控制所述加热件停止加热。
  14. 根据权利要求13所述的冰箱，其特征在于，所述第二阈值小于所述第一阈值。
  15. 根据权利要求11所述的冰箱，其特征在于，还包括显控板；所述显控板分别电连接所述加热件、所述温度感应装置及控制单元。
  16. 根据权利要求11所述的冰箱，其特征在于，所述加热组件还包括电源线，所述加热件及所述温度感应装置并联连接所述电源线。
  17. 根据权利要求11所述的冰箱，其特征在于，所述封装结构为真空封装结构，所述真空封装结构包括抽真空组件及驱动组件，所述驱动组件驱动所述第一支座与所述第二支座相向或相背运动，并且所述第一支座与所述第二支座相互对接可形成抽真空腔，所述抽真空组件用于对位于抽真空腔内的包装袋进行抽真空。
  18. 一种如权利要求11-17任一项所述的冰箱的控制方法，其特征在于，包括：
    控制第一支座与第二支座相向运动，夹持包装袋；
    控制加热件加热，对所述包装袋加热封装；
    在加热件加热的过程中，采集所述加热件的加热温度以产生电信号，根据所述电信号控制所述加热件的工作状态。
  19. 根据权利要求18所述的冰箱的控制方法，其特征在于，在加热件加热的过程中，采集所述加热件的加热温度以产生电信号，根据所述电信号控制所述加热件的工作状态的步骤还包括：
    判断所述加热温度是否达到第一阈值，如果达到第一阈值，控制所述加 热件停止加热。
  20. 根据权利要求19所述的冰箱的控制方法，其特征在于，在加热件加热的过程中，采集所述加热件的加热温度以产生电信号，根据所述电信号控制所述加热件的工作状态的步骤还包括：
    在所述加热温度达到第二阈值时，对所述加热件的加热时间开始计时，当所述加热时间达到时间阈值，控制所述加热件停止加热。
  21. 一种冰箱，其特征在于，包括：箱体及设于箱体内的封装结构；
    所述封装结构包括第一支座、第二支座及加热组件；所述第一支座与所述第二支座可相向运动以夹持包装袋；
    所述加热组件设于所述第一支座内；所述加热组件包括加热件及热保护装置；所述加热件用于对所述包装袋进行加热密封；所述热保护装置与所述加热件电连接形成加热电路，当所述热保护装置的温度达到阈值时，所述热保护装置断开，使所述加热电路断路。
  22. 根据权利要求21所述的冰箱，其特征在于，所述热保护装置暴露于环境中，而所述热保护装置的温度与环境温度相同。
  23. 根据权利要求21所述的冰箱，其特征在于，所述第一支座开设有加热腔，所述加热件穿出所述加热腔，并外露于所述第一支座的外侧，所述热保护装置正对所述加热件设于所述加热腔内。
  24. 根据权利要求23所述的冰箱，其特征在于，所述加热组件还包括隔热板，所述隔热板设于所述加热件与所述第一支座之间。
  25. 根据权利要求24所述的冰箱，其特征在于，所述隔热板为绝缘板。
  26. 根据权利要求21所述的冰箱，其特征在于，所述加热组件包括电源线，所述加热件及所述热保护装置串联连接所述电源线。
  27. 根据权利要求21所述的冰箱，其特征在于，当所述热保护装置的温度小于所述阈值的时候，所述热保护装置还可以恢复导通，使所述加热电路通路。
  28. 根据权利要求21所述的冰箱，其特征在于，所述热保护装置为熔断器。
  29. 根据权利要求21所述的冰箱，其特征在于，所述加热件朝向所述第一支座的外侧面设有绝缘层，所述绝缘层包覆于所述加热件的外侧。
  30. 根据权利要求21-29任一所述的冰箱，其特征在于，所述封装结构为真空封装结构，所述真空封装结构包括抽真空组件及驱动组件，所述驱动组件驱动所述第一支座与所述第二支座相向或相背运动，并且所述第一支座与所述第二支座相互对接可形成抽真空腔，所述抽真空组件用于对位于抽真空腔内的包装袋进行抽真空。
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