Fresh-keeping storage container and refrigerator

Abstract

The invention provides a fresh-keeping storage container and a refrigerator. The fresh-keeping storage container comprises an inner barrel body and an outer barrel body, a containing chamber is formed in the inner barrel body, and an air supply channel is formed in the outer side of the top side wall of the inner barrel body; the magnetic field assembly is arranged in the outer side of the top side wall of the inner barrel body, the magnetic field assembly is arranged between the air supply duct and the containing chamber, and the magnetic field assembly is used for generating a magnetic field in the containing chamber; and a thermal insulation layer is formed between the air supply duct and the accommodating chamber. According to the technical scheme, the cooling capacity of the cold air is conducted to the containing chamber through the magnetic field assembly, the thermal insulation layer and the top wall of the inner barrel body, so that a proper amount of cooling capacity can be transferred to the containing chamber, the proper storage temperature can be kept in the whole containing chamber, and the problem that local excessive supercooling occurs in the containing chamber can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration and freezing, and in particular to a fresh-keeping storage container and a refrigerator. Background Art

[0002] Refrigerators are common household appliances that can store food at low temperatures, thereby extending the storage period of food. Current research has found that magnetic fields can greatly improve the preservation of food. One point is that under the action of magnetic fields, food can be refrigerated below zero, that is, it will not freeze below zero, which has a good effect on the preservation of food.

[0003] However, the non-freezing state of food in sub-zero temperature is not stable. If the temperature is lower than the appropriate sub-zero range, it will still freeze due to excessive cooling. Existing refrigerators use cold air to blow directly on food, which can easily cause local excessive cooling of food, which is not conducive to the storage of food in a magnetic field. Summary of the invention

[0004] An object of the present invention is to provide a fresh-keeping storage container and a refrigerator that can solve any of the above problems.

[0005] A further object of the present invention is to simplify the structure.

[0006] In particular, the present invention provides a fresh-keeping storage container, comprising:

[0007] An inner barrel body, wherein the inner barrel body is formed with a containing chamber, and an air supply duct is formed on the outer side of the top side wall of the inner barrel body; and

[0008] A magnetic field component is arranged inside the outer side of the top side wall of the inner barrel body, and the magnetic field component is arranged between the air supply duct and the receiving chamber, and the magnetic field component is used to generate a magnetic field in the receiving chamber;

[0009] A temperature insulation layer is formed between the air supply duct and the accommodation chamber.

[0010] Optionally, the thermal insulation layer is an air thermal insulation layer.

[0011] Optionally, the thermal insulation layer is formed on a side of the magnetic field assembly facing away from the air supply duct.

[0012] Optionally, the outer surface of the top side wall of the inner barrel body is provided with support ribs, and the support ribs support the magnetic field assembly so that an air insulation layer is formed between the magnetic field assembly and the top side wall of the inner barrel body.

[0013] Optionally, the magnetic field assembly includes:

[0014] A source magnetic component, the source magnetic component is used to generate a magnetic field;

[0015] The magnetic shimming plate is arranged on a side of the source magnetic component away from the containing chamber.

[0016] Optionally, the source magnetic component is a structure composed of a permanent magnetic sheet and an electromagnetic coil, the support ribs form a placement groove, the electromagnetic coil is arranged in the placement groove, and the support ribs support the permanent magnetic sheet.

[0017] Optionally, the magnetic field assembly constitutes a duct wall of the air supply duct.

[0018] Optionally, the fresh-keeping storage container includes an air duct cover plate, which is arranged on a side of the magnetic field assembly facing away from the accommodating chamber, and an air supply duct is formed on a side of the air duct cover plate opposite to the magnetic field assembly.

[0019] Optionally, a wind path recess is formed on one side of the air duct cover plate facing the magnetic field assembly in a direction away from the magnetic field assembly, and the wind path recess extends from the rear end to the front end of the air duct cover plate, and the wind path recess and the magnetic field assembly define an air supply duct.

[0020] Optionally, the thermal insulation layer is a cold storage structure.

[0021] Optionally, a ratio of thermal conductivity to thickness of the thermal insulation layer is greater than or equal to 5 and less than or equal to 100, wherein the unit of thermal conductivity is W / m·degree and the unit of thickness is meter.

[0022] Optionally, the fresh-keeping storage container includes two magnetic field components and two magnetic conductive parts, one magnetic field component is arranged on the outside of the top side wall of the inner barrel body, and the other magnetic field component is arranged on the outside of the bottom side wall of the inner barrel body;

[0023] The two magnetic conductive parts are respectively arranged on the outer side of the left wall and the outer side of the right wall of the inner barrel body, and the two ends of the magnetic conductive parts are respectively connected to the two magnetic field components.

[0024] Optionally, the fresh-keeping storage container also includes an outer shell, which is sleeved on the outside of the inner barrel, and a sandwich space is formed between the top side wall of the outer shell and the top side wall of the inner barrel, and the air supply duct, magnetic field assembly and insulation layer are arranged in the sandwich space.

[0025] Optionally, the thermal insulation layer is arranged on a side of the magnetic field assembly facing the air supply duct.

[0026] In another aspect of the present invention, a refrigerator is provided, comprising the fresh-keeping storage container according to any one of the above items.

[0027] Optionally, the refrigerator includes a cabinet, the cabinet is formed with a storage compartment, and the fresh-keeping storage container is arranged in the storage compartment.

[0028] Optionally, the air supply duct is formed between the inner top wall of the storage compartment and the top wall of the inner barrel body, and the inner top wall of the storage compartment constitutes the top duct wall of the air supply duct.

[0029] Optionally, the magnetic field component constitutes the bottom duct wall of the air supply duct, or the thermal insulation layer constitutes the bottom duct wall of the air supply duct.

[0030] The fresh-keeping storage container of the present invention is provided with an air supply duct on the outer side of the top side wall of the inner barrel body, and a magnetic field component and a thermal insulation layer are provided between the air supply duct and the storage chamber. The magnetic field component generates a magnetic field in the storage chamber, so that the food in the storage chamber is subjected to the magnetic field, thereby improving the fresh-keeping effect of the food. At the same time, the cold air entering the barrel body first enters the air supply duct and does not directly enter the storage chamber, which can avoid the cold wind blowing directly on the food and causing the food temperature to be too low. In addition, the present scheme creatively recognizes that the temperature of the cold air just entering the barrel body is very low, and it is necessary to consider the problem of local excessive cooling caused by the cold air conducting cold to the storage chamber. Therefore, the present scheme is provided with a magnetic field component and a thermal insulation layer between the air supply duct and the storage chamber, so that the cold air is conducted to the storage chamber via the magnetic field component, the thermal insulation layer and the top wall of the inner barrel body, thereby being able to transfer an appropriate amount of cold to the storage chamber, which helps to maintain a suitable storage temperature in the entire storage chamber, and can effectively avoid the problem of local excessive cooling in the storage chamber.

[0031] Furthermore, the fresh-keeping storage container of the present invention supports the magnetic field assembly by arranging support ribs on the outer surface of the top side wall of the inner barrel body to form an air insulation layer, which is conducive to simplifying the structure. In addition, the magnetic field is formed by using permanent magnets and electromagnetic coils. By changing the current in the electromagnetic coil, the electromagnetic coil can generate magnetic fields of different strengths. Therefore, the electromagnetic coil can be used to reinforce the magnetic field generated by the permanent magnet as needed, so that the magnetic field in the accommodating chamber can be enhanced as needed on the basis of the main magnetic field generated by the permanent magnet, thereby increasing the range of magnetic field strength. In addition, by using support ribs to form a placement groove for the electromagnetic coil, the support ribs can not only play a role in supporting the permanent magnet, but also play a role in fixing the electromagnetic coil, which is conducive to simplifying the structure.

[0032] Furthermore, the fresh-keeping storage container of the present invention defines an air duct between the magnetic field component and the air duct cover, that is, the magnetic field component becomes one of the air duct walls of the air duct. The magnetic field component can generate a magnetic field to improve the fresh-keeping effect of food, and can also serve as an air duct wall to form an air duct, thereby simplifying the structure of the fresh-keeping storage container.

[0033] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0035] Figure 1 is a schematic diagram of a fresh-keeping storage container at an angle according to an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of a fresh-keeping storage container according to an embodiment of the present invention from another angle;

[0037] Figure 3 is a first schematic cross-sectional view of a fresh-keeping storage container according to an embodiment of the present invention;

[0038] Figure 4 is a second schematic cross-sectional view of a fresh-keeping storage container according to an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of a barrel in a fresh-keeping storage container according to an embodiment of the present invention;

[0040] Figure 6 is a schematic diagram of an angle of a drawer in a fresh-keeping storage container according to an embodiment of the present invention;

[0041] Figure 7 is a schematic exploded view of a barrel in a fresh-keeping storage container according to an embodiment of the present invention;

[0042] Figure 8 yes Figure 3 A schematic enlarged view of the middle A;

[0043] Fig. 9 is a schematic diagram of an end plate matching member in a fresh-keeping storage container according to an embodiment of the present invention;

[0044] Fig.10 is a schematic diagram of an end plate air hood of a fresh-keeping storage container according to an embodiment of the present invention;

[0045] Fig.11 is a schematic diagram of a drawer in a fresh-keeping storage container according to an embodiment of the present invention from another angle;

[0046] Fig.12 is a partial schematic cross-sectional view of a permanent magnetic sheet in a fresh-keeping storage container according to an embodiment of the present invention;

[0047] Fig.13 is a schematic diagram of assembling a magnetic field assembly and a magnetic conductive member in a fresh-keeping storage container according to an embodiment of the present invention;

[0048] Fig.14 is a schematic top view of an air duct cover plate in a fresh-keeping storage container according to an embodiment of the present invention;

[0049] Fig.15 is a schematic diagram of an angle of an air duct cover plate in a fresh-keeping storage container according to an embodiment of the present invention;

[0050] Fig.16 is a schematic diagram of another angle of the air duct cover plate in the fresh-keeping storage container according to one embodiment of the present invention;

[0051] Fig.17 is a schematic diagram of an angle of the top wall of the outer shell of a fresh-keeping storage container according to an embodiment of the present invention;

[0052] Fig.18 is a schematic diagram of another angle of the top wall of the outer shell of the fresh-keeping storage container according to one embodiment of the present invention;

[0053] Fig.19 is a schematic cross-sectional view of a sealing member in a fresh-keeping storage container according to an embodiment of the present invention;

[0054] Fig. 20 is a schematic diagram of the assembly of a sealing member and a barrel body in a fresh-keeping storage container according to an embodiment of the present invention;

[0055] Fig.21 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0056] Fig. 22 is a schematic diagram of a refrigerator according to an embodiment of the present invention with part of the door body removed;

[0057] Fig.23 is a schematic diagram of an air path for supplying refrigeration airflow to a fresh-keeping storage container by a refrigerator according to an embodiment of the present invention;

[0058] Fig.24 is a schematic diagram of a fresh-keeping storage container according to another embodiment of the present invention;

[0059] Fig.25 is a first schematic diagram of a refrigerator according to another embodiment of the present invention;

[0060] Fig.26 is a second schematic diagram of a refrigerator according to another embodiment of the present invention. DETAILED DESCRIPTION

[0061] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] Furthermore, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] like Figures 1 to 6 As shown, in one embodiment, the fresh-keeping storage container includes a barrel body 100 and a drawer 200. The barrel body 100 defines a receiving compartment 101, and an air supply duct 10 is formed at the top side wall of the barrel body 100. Specifically, the top side wall of the barrel body 100 is formed with an interlayer space 102, and the air supply duct 10 is formed in the interlayer space 102.

[0065] The drawer 200 is pullable and arranged in the storage chamber 101, and the drawer 200 defines a storage space 201. The front end plate 210 of the drawer 200 defines an air passage 20. A cooling air passage 30 is defined between the bottom of the drawer 200 and the inner surface of the bottom side wall of the barrel body 100. An air inlet 103 connected to the air supply duct 10 is formed at the rear end of the barrel body 100, so that cold air enters the air supply duct 10 from the outside of the fresh-keeping storage container, and the air flow from the air inlet 103 is guided to the air passage 20 via the air supply duct 10. A return air port 104 is also provided at the rear end of the barrel body 100.

[0066] The air supply duct 10, the air flow duct 20 and the cold air transfer duct 30 together constitute an air path around the storage space 201. The cold air flows along the air supply duct 10 and enters the air flow duct 20, then flows along the air flow duct 20 and enters the cold air transfer duct 30, and finally flows out of the container from the return air port 104.

[0067] Reference Figure 5 As shown, specifically, the barrel body 100 is box-shaped as a whole and has a forward opening (i.e., the opening of the accommodating chamber 101). That is, the barrel body 100 has five side walls, i.e., the barrel body top side wall, the barrel body bottom side wall, the barrel body rear side wall, the barrel body left side wall, and the barrel body right side wall, and the five side walls together enclose the accommodating chamber 101 with an opening.

[0068] Combination Figures 1 to 6 As shown, the drawer 200 is arranged inside the barrel 100 through the opening of the storage chamber 101. The drawer 200 includes a bottom plate, a rear plate, a left plate, a right plate and a front plate 210. When the drawer 200 is in a closed position, the front plate 210 of the drawer 200 can seal the opening of the barrel 100, so that a closed storage environment is formed inside the barrel 100, that is, the storage space 201 of the drawer 200 is enclosed in the storage chamber 101, so that the drawer 200 and the barrel 100 jointly define a fresh-keeping space. When the drawer 200 is pulled out of the barrel 100, the storage space 201 of the drawer 200 is exposed to the outside, and the stored objects can be taken in and out.

[0069] Combination Figure 3 and Figure 7 As shown, specifically, the barrel body 100 includes an outer barrel body 110 and an inner barrel body 120 , the outer barrel body 110 is sleeved on the outside of the inner barrel body 120 , and a sandwich space 102 is formed between the top side wall of the outer barrel body 110 and the top side wall of the inner barrel body 120 .

[0070] It should be noted that the top plate of the outer shell can be extended laterally to serve as the top plate of other storage drawers arranged laterally parallel to the fresh-keeping storage container.

[0071] Reference Figures 1 to 8 As shown, the front end of the top wall of the barrel body 100 is formed with an air supply hole 105 connected to the air supply duct 10. The front end plate 210 of the drawer 200 includes a panel 211 and an end plate hood 212. The end plate hood 212 is arranged on the inner side of the panel 211, and the end plate hood 212 protrudes from the panel 211 to the inner side of the drawer 200, and the end plate hood 212 defines the wind passage 20. The top end of the end plate hood 212 has an air receiving hole 202. When the drawer 200 is in a closed position, the cold air entering the air supply duct 10 from the air inlet 103 can flow out from the air supply hole 105 and flow into the wind passage 20 from the air receiving hole 202.

[0072] It should be noted that the air passage can be defined by the end plate hood and the panel together, or can be formed by the end plate hood alone (that is, the end plate hood has a side wall that fits the inner side of the panel). In addition, the end plate hood can be a component that is formed separately and subsequently assembled on the drawer, or can be a component that is integrally formed with the drawer. Furthermore, the left side wall, right side wall and bottom side wall of the end plate hood can be directly formed by the left side wall, right side wall and bottom side wall of the drawer.

[0073] It should be noted that, in some other aspects of the present invention, the cold air flowing out of the air supply duct can also flow downward from the outer side of the front end plate of the drawer, and then flow into the cold air duct. In addition, in some other embodiments, the cold air duct can be formed on the outer side of the bottom wall of the inner barrel.

[0074] Reference Figure 8 and Fig. 9 As shown, the barrel body 100 further includes an end plate fitting 130, which is disposed at the front end of the barrel body 100, surrounds the opening of the accommodating chamber 101 and is assembled with the outer shell 110 and the inner barrel body 120, thereby closing the air supply duct 10. At the same time, the air supply hole 105 is formed on the end plate fitting 130, so that the air flow in the air supply duct 10 can flow out from the air supply hole 105.

[0075] It should be noted that the barrel body 100 may not be provided with the end plate fitting 130. In this case, the air supply hole may be formed on the section bent from the front end of the outer shell to the inner barrel body, or formed on the section bent from the front end of the inner barrel body to the outer shell.

[0076] like Fig.10 and Fig.11 As shown, the bottom side wall of the end plate hood 212 is provided with four air outlet holes 203. The bottom side wall of the drawer 200 is also provided with corresponding through holes, so that the air flow in the air passage 20 flows out from the air outlet holes 203 and flows into the cooling air passage 30 through the through holes on the bottom side wall of the drawer 200.

[0077] Among them, one air outlet is set at the left end of the bottom side wall of the end plate air cover 212, one air outlet is set at the right end of the bottom side wall of the end plate air cover 212, one air outlet is set in the middle of the bottom side wall of the end plate air cover 212, and one air outlet is set between the air outlet at the end of the end plate air cover 212 away from the air inlet and the middle air outlet.

[0078] Specifically, the end of the end plate hood 212 away from the air inlet is the end away from the central axis of the air inlet 103 in the transverse direction perpendicular to the central axis of the air inlet 103. In other words, the end of the end plate hood 212 away from the air inlet 103 has a larger air outlet area than the end close to the air inlet 103, so that the air outlet at the bottom side of the end plate hood 212 is more uniform.

[0079] It should be noted that, in some other embodiments, the end plate hood may also be provided with an air outlet, such as a long strip air outlet extending in the left-right direction, or may be provided with two, three, five or other air outlets.

[0080] Reference Figure 4 , Figure 5 and Figure 7 As shown, specifically, an air outlet 106 is formed near the top of the rear side wall of the inner barrel body 120, and a longitudinally extending air duct 40 is formed between the rear side wall of the inner barrel body 120 and the rear side wall of the outer shell 110, and the top of the air duct 40 is connected to the return air port 104. Cold air flows from the cold air duct 30 to the rear end of the drawer 200, then flows upward to the air outlet 106, flows from the air outlet 106 into the air outlet 40, then flows along the air outlet 40 to the return air port 104, and finally flows out from the return air port 104.

[0081] In summary, the air path inside the fresh-keeping storage container is configured as follows: the airflow enters the rear end of the air supply duct 10 defined in the top wall of the barrel body 100 from the air inlet 103, and then the airflow flows through the air supply duct 10 from back to front. At the front end of the air supply duct 10, the airflow enters the top of the air passage duct 20 defined in the front end plate 210 of the drawer 200 through the air supply hole 105 and the air receiving hole 202, and then the airflow flows through the air passage 20 from top to bottom. At the bottom end of the air passage duct 20, the airflow enters the cold air duct 30 between the bottom plate of the drawer 200 and the bottom wall of the barrel body 100, and then the airflow flows through the cold air duct 30 from front to back. At the connection position between the rear end of the bottom plate of the drawer 200 and the rear plate of the drawer 200 (i.e., the rear end of the cold air duct 30), the airflow enters the gap between the rear plate of the drawer 200 and the rear wall of the barrel body 100. The air then flows from the air outlet 106 into the air duct 40 , and eventually reaches the return air port 104 along the air duct 40 .

[0082] The internal air path of the fresh-keeping storage container surrounds the entire fresh-keeping storage container. Without entering the fresh-keeping storage space and directly contacting the stored objects, sufficient heat exchange can be achieved to evenly cool the fresh-keeping storage container.

[0083] It should be noted that the cold air duct at the bottom of the drawer can also be formed outside the bottom side wall of the inner barrel body. In addition, the longitudinal air duct may not be provided, and the cold air flows directly from the rear end of the cold air duct.

[0084] Reference Figure 3 , Figure 4 and Fig.12As shown, the fresh-keeping storage container includes a magnetic field assembly 300, which is arranged outside the top side wall of the inner barrel 120 and between the air supply duct 10 and the receiving chamber 101. A temperature insulation layer 50 is formed between the air supply duct 10 and the receiving chamber 101.

[0085] Recombination Figure 7 As shown, specifically, the thermal insulation layer 50 is formed on the side of the magnetic field assembly 300 away from the air supply duct 10, and the thermal insulation layer 50 is an air thermal insulation layer. The outer surface of the top side wall of the inner barrel body 120 is provided with a support rib 121, and the support rib 121 supports the magnetic field assembly 300, so that the magnetic field assembly 300 and the bottom wall of the interlayer space 102 form an air thermal insulation layer.

[0086] Specifically, the air supply duct 10, the magnetic field assembly 300 and the thermal insulation layer 50 are all arranged in the interlayer space 102. The top wall of the inner barrel body 120 is provided with a raised support rib 121. When the magnetic field assembly 300 is assembled in place in the barrel body 100, the bottom surface of the magnetic field assembly 300 abuts against the top of the support rib 121. Then, the magnetic field assembly 300 is supported by the support rib 121. Thus, a gap is formed between the magnetic field assembly 300 and the top wall of the inner barrel body 120, that is, an air thermal insulation layer.

[0087] Reference Fig.13 As shown, further, the magnetic field assembly 300 includes a shim plate 310 and a source magnetic member 320. The source magnetic member 320 is used to generate a magnetic field. The shim plate 310 is disposed on a side of the source magnetic member 320 away from the receiving chamber 101.

[0088] Among them, the uniform magnetic plate 310 is made of a magnetic conductive material, such as silicon steel material. The source magnetic part 320 is a structure composed of a permanent magnetic sheet 321 and an electromagnetic coil 322. The permanent magnetic sheet 321 can be made of a permanent magnetic material with a certain flexibility, for example, a rubber magnetic sheet with flexibility made by compounding bonded ferrite magnetic powder and synthetic rubber through a calendering molding process. The thickness of the permanent magnetic sheet 321 is greater than 2 mm, for example, it can be 3 mm, 3.2 mm, 3.5 mm, etc. Preferably, the thickness of the permanent magnetic sheet 321 is 3.2 mm. The permanent magnetic sheet 321 is arranged on the side of the uniform magnetic plate 310 facing the accommodation chamber 101, and the electromagnetic coil 322 is arranged on the side of the permanent magnetic sheet 321 facing the accommodation chamber 101. That is to say, the uniform magnetic plate 310, the permanent magnetic sheet 321, and the electromagnetic coil 322 are stacked from top to bottom.

[0089] Combination Figure 7As shown, further, the support ribs 121 surround a placement groove, the electromagnetic coil 322 is arranged in the placement groove, and the support ribs 121 support the permanent magnet sheet 321. Specifically, the electromagnetic coil 322 is circular. Two circular support ribs 121 are formed on the top wall of the inner barrel body 120, wherein one circular support rib 121 is located inside the other circular support rib 121, so that a circular placement groove is formed between the two circular support ribs 121, so that the electromagnetic coil 322 can be placed in the circular placement groove.

[0090] A necessary condition for long-term fresh-keeping storage of fresh-keeping storage containers is to maintain the temperature in the storage compartment 101 within a suitable fresh-keeping temperature range, and the refrigeration process will not be too low or too high, especially to ensure that the temperature of each area of ​​the storage compartment 101 is uniform. In some embodiments, the fresh-keeping temperature range can be set to be greater than -3 degrees Celsius and less than 0 degrees Celsius. The stored objects can avoid being frozen and can be maintained at a fresh-keeping temperature below zero. Those skilled in the art can set the fresh-keeping temperature range according to the specific state of the stored objects, and the above specific numerical range is only for example.

[0091] Another necessary condition for the fresh-keeping storage container to achieve long-term fresh-keeping storage is to apply a magnetic field of appropriate strength in the containing chamber 101. After in-depth research on the fresh-keeping effect, the magnetic field parameters of the fresh-keeping storage container of this embodiment are preferably configured as an effective magnetic field strength range: 10-100GS (1-10mT), which can be further set to 20-80GS, and further set to 40GS-60GS, such as 10GS, 20GS, 40GS, 60GS, 80GS, 100GS, etc., and the effective magnetic field spacing range: 60-240mm, that is, the magnetic field can reach the above-mentioned strength requirements within a distance range of 60mm to 240mm from the magnetic source component.

[0092] In the solution of this embodiment, an air supply duct 10 is arranged on the outer side of the top side wall of the inner barrel 120, and a magnetic field assembly 300 and a thermal insulation layer 50 are arranged between the air supply duct 10 and the storage chamber 101. The magnetic field assembly 300 generates a magnetic field in the storage chamber 101, so that the food in the storage chamber 101 is affected by the magnetic field, thereby improving the preservation effect of the food. At the same time, the cold air entering the barrel 100 first enters the air supply duct 10 and does not directly enter the storage chamber 101, which can prevent the cold air from blowing directly on the food and causing the food temperature to be too low. In addition, the present solution creatively recognizes that the temperature of the cold air just entering the barrel body 100 is very low, and it is necessary to consider the problem of local over-cooling caused by the cold air conducting cold to the storage chamber 101. Therefore, the present solution arranges a magnetic field component 300 and a thermal insulation layer 50 between the air supply duct 10 and the storage chamber 101, so that the cold air is conducted to the storage chamber 101 via the magnetic field component 300, the thermal insulation layer 50 and the top wall of the inner barrel body 120, thereby being able to transfer an appropriate amount of cold to the storage chamber 101, which helps to maintain a suitable storage temperature in the entire storage chamber 101, and can effectively avoid the problem of local over-cooling in the storage chamber 101.

[0093] Furthermore, by providing support ribs 121 on the bottom wall of the interlayer space 102 to support the magnetic field assembly 300 , an air temperature insulation layer is formed, which is helpful to simplify the structure.

[0094] Furthermore, by using ferrite magnetic powder and synthetic rubber composite material to make the permanent magnet sheet 321, and making the thickness of the permanent magnet sheet 321 greater than 2 mm, on the basis of ensuring that the permanent magnet sheet 321 has sufficient source magnetism to generate a magnetic field that meets the requirements in the storage chamber 101, the above-mentioned material enables the permanent magnet sheet 321 to have a suitable heat conduction effect, ensuring that the cold air conducts a suitable amount of cold air to the storage chamber 101 through the uniform magnetic plate 310, the permanent magnet sheet 321 and the side wall of the inner barrel body 120, avoiding the problem of excessive cooling of the storage chamber 101, so that the magnetic field and temperature in the storage chamber 101 are maintained in the required range, ensuring the preservation effect of food.

[0095] In addition, by using the permanent magnet sheet 321 and the electromagnetic coil 322 to form a magnetic field, by changing the current in the electromagnetic coil 322, the electromagnetic coil 322 can generate magnetic fields of different strengths. Therefore, the electromagnetic coil 322 can be used to reinforce the magnetic field generated by the permanent magnet sheet 321 as needed, so that the magnetic field in the accommodation chamber 101 can be enhanced as needed on the basis of the main magnetic field generated by the permanent magnet sheet 321, thereby increasing the range of magnetic field strength. In addition, by using the support ribs 121 to form a placement groove for the electromagnetic coil 322, the support ribs 121 can not only play a role in supporting the permanent magnet sheet 321, but also play a role in fixing the electromagnetic coil 322, which is conducive to simplifying the structure.

[0096] In addition, combined with the internal air path of the above-mentioned fresh-keeping storage container, the cold air gradually exchanges heat during the flow process, and its own temperature gradually increases. The air flow temperature of the air supply duct 10 is the lowest, but because the cold air must be conducted to the receiving chamber 101 through the magnetic field component 300 and the insulation layer 50, that is, the cold transmission is the most difficult, so in summary, it can transfer an appropriate amount of cold to the receiving chamber 101, and can effectively avoid local excessive cooling in the receiving chamber 101. In the over-wind duct 20, the difficulty of cold transmission of the drawer end plate is easier than that of the air supply duct 10, but the wind temperature is higher, so in summary, it can effectively avoid local excessive cooling in the receiving chamber 101. The gap between the drawer bottom plate and the bottom wall of the barrel body is used as the cold transmission duct 30, and the cold energy exchanges heat with the drawer bottom plate, which is the easiest to transmit cold, but the wind temperature is also the highest, so in summary, it can also effectively avoid local excessive cooling in the receiving chamber 101. That is to say, as the air flow temperature increases, the heat exchange difficulty of each air path section becomes relatively easier, which makes the temperature of each location in the fresh-keeping storage space roughly the same, and effectively avoids the problem of local over-cooling.

[0097] It should be noted that, in some other embodiments, the source magnetic component may be just a permanent magnetic sheet, or just an electromagnetic coil.

[0098] It should be noted that in some other embodiments, the support ribs can also support the shim plate. For example, the shim plate is provided with a groove, and the permanent magnet sheet is arranged in the groove. The depth of the groove is greater than the thickness of the permanent magnet sheet, so that the support ribs support the shim plate, and the permanent magnet sheet is adsorbed on the shim plate. Of course, the depth of the groove can also be less than the thickness of the permanent magnet sheet, so that the support ribs support the permanent magnet sheet. Alternatively, in the case where the source magnetic component is only an electromagnetic coil, the support ribs also support the shim plate.

[0099] It should be noted that, in some other embodiments, other components may be provided between the temperature insulating layer and the magnetic field assembly, that is, the temperature insulating layer is not directly in contact with the magnetic field assembly. In addition, in some other embodiments, the temperature insulating layer may also be formed on the side of the magnetic field assembly away from the containing chamber.

[0100] It should be noted that in some other embodiments, the outer shell may not be provided. That is, the air supply duct may be provided on the outer side of the top side wall of the inner barrel. In an optional solution, the air supply duct may be formed between the inner barrel and the inner wall of the refrigerator body. However, the provision of the outer shell helps to protect the components such as the magnetic field assembly on the outer side of the inner barrel.

[0101] Preferably, the thickness of the air insulation layer is set to be greater than or equal to 1 mm and less than or equal to 3 mm, for example, it can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. Such a setting allows the air insulation layer to maintain a suitable heat conduction effect, so that the temperature of the accommodation chamber 101 is maintained at a reasonable temperature, neither too high nor too low, and avoids the air insulation layer from occupying a large space.

[0102] Reference Figure 3 and Fig.13 As shown, preferably, on the plane where the side of the magnetic shimming plate 310 faces the drawer 200, the drawer 200 in the closed position makes the projection of the storage space 201 fall within the magnetic shimming plate 310. In other words, when the drawer 200 is in the closed position, the magnetic shimming plate 310 covers the entire storage space 201, thereby ensuring the magnetic shimming effect on the entire storage space 201.

[0103] Reference Figure 3 As shown, the magnetic field assembly 300 constitutes an air duct wall of the air supply duct 10. Specifically, the fresh-keeping storage container includes an air duct cover plate 400, which is arranged in the interlayer space 102, and the air duct cover plate 400 is arranged on the side of the magnetic field assembly 300 away from the accommodating chamber 102, and the air supply duct 10 is formed on the side of the air duct cover plate 400 opposite to the magnetic field assembly 300. Specifically, the magnetic field assembly 300 and the air duct cover plate 400 form a complete and continuous air supply duct 10. In other words, the magnetic field assembly 300 and the air duct cover plate 400 form an air supply duct 10 with air flow inlets and outlets only at both ends of the extension direction of the magnetic field assembly 300 and the air duct cover plate 400. In the extension direction of the entire air supply duct 10, the cold air entering the air supply duct 10 can only flow out of the air supply duct 10 after flowing through the entire air supply duct 10, and the cold air in the air supply duct 10 can only contact the magnetic field assembly 300.

[0104] Specifically, the magnetic shim plate 310 and the air duct cover plate 400 define an air duct.

[0105] The air duct is defined between the magnetic field assembly 300 and the air duct cover plate 400, that is, the magnetic field assembly 300 becomes one of the air duct walls of the air duct. The magnetic field assembly 300 can generate a magnetic field to improve the preservation effect of food, and can also serve as an air duct wall to form an air duct, thereby simplifying the structure of the fresh-keeping storage container.

[0106] In addition, the uniform magnetic plate 310 and the air duct cover plate 400 define an air duct. When the cold air flows through the air duct, the uniform magnetic plate 310 can play a role in uniform temperature, which is conducive to uniform cooling in the accommodation chamber 101. Moreover, since the heat conduction effect of the uniform magnetic plate 310 is relatively good, the problem of local excessive cooling caused by the cold air conducting cold to the accommodation chamber 101 is taken into consideration. This embodiment adopts a solution combining the permanent magnetic sheet 321 and the uniform magnetic plate 310. Because the heat conduction effect of the permanent magnetic sheet 321 is relatively poor, coupled with the effect of the thermal insulation layer 50, when the uniform magnetic plate 310 is set, the problem of excessive cooling in the accommodation chamber 101 can be avoided, and the temperature uniformity in the accommodation chamber 101 can be improved, which has an unexpected effect.

[0107] It should be noted that, in some other embodiments, other components may be additionally provided on the magnetic field assembly to form an air supply duct.

[0108] Combination Figure 3 , Figure 14 to Figure 15 As shown, a side of the air duct cover plate 400 facing the magnetic field assembly 300 is formed with an air duct recess 401 in a direction away from the magnetic field assembly 300, and the air duct recess 401 extends from the rear end to the front end of the air duct cover plate 400, and the rear end of the air duct recess 401 defines a structural interface 402, and the structural interface 402 is used to communicate with the air inlet 103. The air duct recess 401 and the magnetic field assembly 300 define an air supply duct 10.

[0109] Specifically, the air duct cover plate 400 has a certain thickness, and the side thereof facing the magnetic field assembly 300 has an inward air duct recess 401, which penetrates the front and rear ends of the air duct cover plate 400. When the air duct cover plate 400 and the magnetic field assembly 300 are assembled in place, the parts of the air duct cover plate 400 located on both sides of the air duct recess 401 contact the magnetic field assembly 300 to form a seal. Because the air duct recess 401 penetrates the opposite ends of the air duct cover plate 400, the air duct recess 401 and the magnetic field assembly form an air supply duct 10 extending from the rear end to the front end of the air duct cover plate 400.

[0110] By forming the air duct recess 401 on the air duct cover plate 400, the air duct cover plate 400 can form three side walls of the air duct, and the magnetic field assembly 300 forms another side wall of the air duct. Compared with the air duct cover plate 400 and the magnetic field assembly 300 forming two opposite side walls of the air duct and other components forming the other two side walls of the air duct, only the air duct cover plate 400 and the magnetic field assembly 300 are used to form the air supply air duct 10, further simplifying the structure. In addition, it is only necessary to form a seal between the air duct cover plate 400 and the magnetic field assembly 300, which is convenient for sealing and has a better sealing effect.

[0111] It should be noted that the seal between the magnetic field component and the air duct cover can be a direct contact seal between the magnetic field component and the air duct cover, or it can be an indirect contact seal through two sealing strips arranged between the two, and the two sealing strips are arranged on both sides of the air supply duct.

[0112] Combination Figure 14 to Figure 15 As shown, three diverter ribs 410 are provided in the air supply duct 10, and the diverter ribs 410 extend along the front-to-rear direction of the air supply duct 10 to divide the air supply duct 10 into a plurality of air paths distributed along the left-to-right direction.

[0113] Specifically, three diverter ribs 410 are distributed along the left and right directions of the air supply duct 10, dividing the air supply duct 10 into four air paths. Specifically, the duct cover plate 400 is made of a heat-insulating material, such as a foam material. At the same time, the diverter rib 410 is formed by a side of the duct cover plate 400 facing the magnetic field assembly 300 protruding toward the magnetic field assembly 300. In other words, the diverter rib 410 is integrally formed with the duct cover plate 400.

[0114] By providing the diverter ribs 410 in the air supply duct 10, it is helpful to disperse the airflow entering the air supply duct 10 to the left and right sides, so that the airflow is more evenly distributed in the air supply duct 10. In addition, the diverter ribs 410 and the air duct cover plate 400 are integrally formed, so that the air duct cover plate 400 is better supported, which helps to improve the structural strength of the air duct cover plate 400.

[0115] It should be noted that, in some other embodiments, the number of the diverter ribs may be one, two, four or more. Alternatively, no diverter ribs may be provided.

[0116] Combination Figure 1 , Figures 16 to 18 As shown, further, the top end of the rear side of the barrel body 100 has an inclined section 111, and the air inlet 103 is formed in the inclined section 111. The inclined direction of the inclined section 111 points from the top to the bottom along the front-to-back direction of the barrel body 100. The end of the air duct cover plate 400 formed with the structural interface 402 is formed with an inclined surface 420 that cooperates with the inclined section 111, and the structural interface 402 is formed on the inclined surface 420. The inclined surface 420 fits the inner surface of the inclined section 111 so that the structural interface 402 is aligned with the air inlet 103.

[0117] Specifically, an inclined section 111 is formed on the top wall of the outer shell 110 or the outer top wall of the barrel 100. When the air duct cover plate 400 and the outer shell 110 are assembled in place, the air duct cover plate 400 fits with the inner surface of the top wall of the outer shell 110, including the fit between the inclined surface 420 of the air duct cover plate 400 and the inner surface of the inclined section 111. In other words, when the air duct cover plate 400 and the outer shell 110 are assembled in place, the inclined direction of the inclined surface 420 of the air duct cover plate 400 is consistent with the inclined direction of the inclined section 111. The structural interface 402 is aligned with the air inlet 103, so that the cold air outside the fresh-keeping storage container can enter the air supply duct 10 through the air inlet 103.

[0118] By providing the inclined section 111 on the barrel body 100, the air inlet 103 is formed on the inclined section 111, which facilitates air supply to the air supply duct 10. Moreover, the section of the barrel body 100 provided with the air inlet 103 forms a longitudinal assembly relationship with the air duct cover plate 400, which facilitates the barrel body 100 and the air duct cover plate 400 to be pressed tightly.

[0119] Reference Figures 16 to 18 As shown, the outer shell of the barrel body 100 is formed with a longitudinal extension section 112 at the rear end of the inclined section 111, and the air duct cover plate 400 is formed with a longitudinal extension surface 430 that cooperates with the longitudinal extension section 112. The assembled air duct cover plate 400 and the barrel body 100 make the longitudinal extension surface 430 fit the inner surface of the longitudinal extension section 112.

[0120] Specifically, the longitudinal extension section 112 is also formed on the top side wall of the outer shell 110, and has no rear end of the inclined section 111 and is connected to the inclined section 111. When the air duct cover plate 400 and the outer shell 110 are assembled in place, the air duct cover plate 400 fits with the inner surface of the top wall of the outer shell 110, including the fit between the longitudinal extension surface 430 of the air duct cover plate 400 and the inner surface of the longitudinal extension section 112. The longitudinal extension surface 430 and the longitudinal extension section 112 cooperate with each other, and can play a positioning role in the assembly of the air duct cover plate 400 and the outer shell 110.

[0121] Reference Figures 16 to 18 As shown, further, a positioning groove 403 is provided on one side of the air duct cover plate 400, and a positioning rib 113 is provided on the inner side of the top wall of the outer shell 110. The positioning groove 403 and the positioning rib 113 cooperate to position the assembly of the air duct cover plate 400 and the outer shell 110.

[0122] like Figure 3 , Figure 4 and Fig.13As shown, further, the fresh-keeping storage container is provided with two groups of magnetic field assemblies 300. The two groups of magnetic field assemblies 300 are respectively arranged in the top side wall and the bottom side wall of the barrel body 100. In addition, the fresh-keeping storage container also includes two magnetic conductive parts 500. The two magnetic conductive parts 500 are respectively arranged on the left side wall and the right side wall of the barrel body 100. The two ends of the magnetic conductive parts 500 are respectively connected to the uniform magnetic plates 310 in the two magnetic field assemblies 300, so that the two magnetic field assemblies 300 and the two magnetic conductive parts 500 together form a ring magnetic field loop, which improves the utilization rate of the magnetic field and reduces the influence of the magnetic field on external components.

[0123] Further, the ratio of the thermal conductivity to the thickness of the thermal insulation layer 50 is greater than or equal to 5 and less than or equal to 100, for example, it can be 5, 10, 20, 30, 40, 50, 75, 89, 100. The unit of thermal conductivity is watt / meter degree, and the unit of thickness is meter. Preferably, the ratio of the thermal conductivity to the thickness of the thermal insulation layer 50 is greater than or equal to 20 and less than or equal to 80. For example, it can be 20, 30, 40, 50, 60, 70, 80.

[0124] like Figure 5 and Figure 8 As shown, further, the fresh-keeping storage container further includes a sealing member 600. The sealing member 600 is arranged on the inner side of the top wall of the accommodating chamber 101, and the sealing member 600 extends in the left-right direction of the barrel body 100. The drawer 200 in the closed position makes the inner side of the panel 211 abut against the front end of the barrel body 100, so that the side of the end plate wind shield 212 facing the inside of the drawer 200 abuts against the sealing member 600, and the air supply hole 105 and the air receiving hole 202 are located between the contact position of the panel 211 with the barrel body 100 and the contact position with the sealing member 600.

[0125] Specifically, when the drawer 200 is in the closed position, the inner side of the panel 211 and the front end of the end plate fitting 130 are in contact with each other, thereby closing the storage compartment 101. The seal 600 and the end plate hood 212 are in contact with each other, thereby reducing the flow of cold air into the storage space 201. In other words, the panel 211, the end plate fitting 130 and the seal 600 together define a relatively closed passage between a small section of the air supply hole 105 and the air receiving hole 202, so that the cold air can flow into the air passage 20 as much as possible, thereby reducing the air leakage into the storage space 201 and preventing the temperature of the stored objects from dropping too fast.

[0126] Combination Fig.19 and Fig. 20As shown, specifically, the sealing member 600 includes a supporting portion 610 and a sealing portion 620. The supporting portion 610 is used to be connected to the barrel body 100. One end of the sealing portion 620 is connected to the supporting portion 610, and the other end is used to abut against the end plate wind shield 212. Among them, the supporting portion 610 is made of a relatively hard material (for example, PP (polypropylene) material) so as to be firmly connected to the barrel body 100. The sealing portion 620 is made of a relatively soft material (for example, TPE (Thermo Plastic Elastomer) material, rubber, etc.) so as to deform in contact with the end plate wind shield 212 to achieve a better seal.

[0127] Reference Fig.19 and Fig. 20 As shown, the support portion 610 is formed with a matching groove 601, and the barrel body 100 is provided with a matching rib 140. The matching rib 140 is embedded in the matching groove 601 to connect the seal 600 and the barrel body 100. Specifically, the cross section of the support portion 610 is "U"-shaped as a whole, and the matching groove 601 is a "U"-shaped concave portion.

[0128] By adopting the assembly method of matching the matching groove 601 and the matching rib 140, the assembly process of the seal 600 and the barrel body 100 is made more convenient, and the seal 600 can be detachably connected to the barrel body 100, which is convenient for replacing the seal 600.

[0129] It should be noted that, in some other embodiments, the seal 600 can also be assembled on the barrel body 100 by means of gluing, screwing, or other connection methods.

[0130] Reference Figure 3 , Figures 19 to 20 As shown, further, one end of the sealing portion 620 is connected to the notch end of one side wall of the matching groove 601, and the other end extends in the opening direction of the matching groove 601. Therefore, correspondingly, for the matching rib 140 provided on the barrel body 100, it is formed by extending from front to back. In other words, the matching groove 601 of the support portion 610 is buckled on the matching rib 140 along the direction from back to front of the barrel body 100. In other words, after the sealing member 600 and the barrel body 100 are assembled in place, the opening direction of the matching groove 601 is consistent with the opening direction of the accommodating chamber 101.

[0131] Because during the contact between the end plate wind cover 212 and the sealing member 600, the sealing member 620 is subjected to the pressure directed toward the rear of the barrel body 100 by the end plate wind cover 212. By connecting one end of the sealing member 620 to the notch end of a side wall of the matching groove 601 and extending the other end toward the opening direction of the matching groove 601, the sealing member 620 can transfer the pressure to the supporting member 610 when subjected to pressure, and then the matching groove 601 can offset part of the pressure by slightly expanding and deforming, thereby reducing the pressure burden on the connection between the sealing member 620 and the supporting member 610, which is beneficial to improving the service life of the sealing member 600.

[0132] It should be noted that in some other embodiments, one end of the sealing portion may be connected to the outer side of the bottom wall of the matching groove, and the other end may extend in a direction away from the opening of the matching groove. In addition, the assembly direction of the matching groove and the matching rib may also be along the top and bottom direction of the barrel body.

[0133] like Fig.19 and Fig. 20 As shown, a first convex rib 611 is provided on the inner side of the side wall where the matching groove 601 and the sealing portion 620 meet. The matching rib 140 is provided with a clamping rib 141 that matches the first convex rib 611. The assembled sealing member 600 and the matching rib 140 make the clamping rib 141 located on the side of the first convex rib 611 away from the notch of the matching groove 601. The first convex rib 611 and the clamping rib 141 are provided with guiding surfaces that match each other.

[0134] Specifically, the clamping rib 141 is formed by the bottom side of the matching rib 140 protruding downward, and the first rib 611 is formed by the inner side of the side wall where the matching groove 601 and the sealing portion 620 meet and protrudes toward the side wall of the other matching groove 601. During the assembly process of the seal 600 and the matching rib 140, the side of the first rib 611 provided with the guide surface first contacts the side of the clamping rib 141 provided with the guide surface, specifically, the side of the first rib 611 close to the notch of the matching groove 601 first contacts the clamping rib 141. As the seal 600 continues to be assembled with the matching rib 140, that is, as the matching rib 140 is continuously embedded in the matching groove 601, the first rib 611 passes over the clamping rib 141 under the guidance of the guide surface, and then resets under the elastic action of itself. Then, the clamping rib 141 is located on the side of the first rib 611 away from the notch of the matching groove 601, and the clamping rib 141 and the first rib 611 overlap in the front-to-back direction of the barrel body 100.

[0135] The first convex rib 611 is provided on the matching groove 601, and the clamping rib 141 that cooperates with the first convex rib 611 is provided on the matching rib 140. After the seal 600 and the matching rib 140 are assembled in place, the clamping rib 141 is located on the side of the first convex rib 611 away from the notch of the matching groove 601, so that the clamping rib 141 and the first convex rib 611 cooperate with each other to prevent the seal 600 from being separated from the matching rib 140.

[0136] like Fig.19 and Fig. 20 As shown, a second rib 612 is provided on the inner side of the side wall where the matching groove 601 and the sealing portion 620 meet, and the second rib 612 is located on the side of the first rib 611 away from the notch of the matching groove 601. The assembled sealing member 600 and the matching rib 140 make the clamping rib 141 located between the first rib 611 and the second rib 612, and make the top end of the second rib 612 abut against the matching rib 140.

[0137] Similarly, the second rib 612 is formed by the inner side of the side wall where the matching groove 601 and the sealing portion 620 meet and protrudes toward the side wall of the other matching groove 601. The top of the second rib 612 is arc-shaped, which can reduce the interference with the matching rib 140 during the assembly of the sealing member 600.

[0138] By setting the second rib 612 in the matching groove 601, the seal 600 and the matching rib 140 are assembled in place so that the top of the second rib 612 abuts against the matching rib 140, thereby reinforcing the assembly of the seal 600 and the matching rib 140 and improving the structural stability.

[0139] The protrusion heights of the first convex rib 611 and the second convex rib 612 are the same, which are less than or equal to one quarter of the width of the matching groove 601 (the distance between the two groove side walls).

[0140] like Fig.19 and Fig. 20 As shown, a third rib 613 is provided on the inner side of the side wall of the matching groove 601 opposite to the first rib 611. The third rib 613 and the matching rib 140 are provided with mutually matching guide surfaces, and the assembled seal 600 and the matching rib 140 make the top of the third rib 613 abut against the matching rib 140.

[0141] Specifically, the third rib 613 is formed by the inner side of the side wall of the matching groove 601 opposite to the first rib 611, which protrudes toward the side wall where the first rib 611 is located, and the third rib 613 is formed at the notch end of the side wall. The guide surface is formed on the side of the third rib 613 close to the notch. In addition, the guide surface on the matching rib 140 is formed on the top side of the protruding end of the matching rib 140. During the assembly process of the seal 600 and the matching rib 140, the third rib 613 can play a guiding role. After the seal 600 and the matching rib 140 are assembled in place, the top of the third rib 613, that is, abuts against the matching rib 140, can play a role in reinforcing the assembly of the seal 600 and the matching rib 140.

[0142] like Figure 8 and Fig.19As shown, further, the sealing portion 620 is a flexible fin, the sealing portion 620 is curved, and the side of the sealing portion 620 close to the support portion 610 is a curved convex side. Specifically, with the end where the sealing portion 620 and the support portion 610 are connected as a reference, the curved sealing portion 620 is located as a whole on the side of the connected side wall away from the matching groove 601. In addition, the other end of the sealing portion 620 has both a lateral distance and a longitudinal distance from the end where the sealing portion 620 and the support portion 610 are connected. Moreover, the two ends are curved. The side of the sealing portion 620 close to the support portion 610 is a curved convex side. In other words, from the perspective of looking from the front of the notch of the matching groove 601 to the matching groove 601, what is seen is the concave side of the curved sealing portion 620.

[0143] The sealing part 620 is set as a curved flexible fin, and the side of the sealing part 620 close to the supporting part 610 is a curved convex side. In the process of the sealing part 620 contacting the end plate hood 212, the end of the sealing part 620 away from the supporting part 610 contacts the end plate hood 212 first. As the drawer 200 continues to close, the sealing part 620 is subjected to the pressure of the end plate hood 212. Due to the special structure of the sealing part 620, the sealing part 620 has two points that are easy to deform, one is the junction of the sealing part 620 and the supporting part 610, and the other is the middle of the sealing part 620. On the one hand, the sealing part 620 is more likely to deform to buffer the pressure, thereby improving the service life of the sealing part 620. On the other hand, the sealing part 620 can maintain the basic bending direction during the squeezing process, but the bending degree will increase, and then the sealing part 620 keeps the guiding direction of the cold air toward the side where the air receiving hole 202 is located, which is convenient for the smooth flow of airflow.

[0144] It should be noted that, in some other embodiments, the sealing portion may also be an elastic block.

[0145] Reference Fig.19 As shown, further, the curvature of the sealing portion 620 becomes smaller and smaller in the extending direction from one end where the sealing portion 620 and the supporting portion 610 are connected to the other end. In other words, the curvature of the sealing portion 620 becomes more and more gentle in the extending direction from one end where the sealing portion 620 and the supporting portion 610 are connected to the other end. This is conducive to ensuring the contact effect between the end of the sealing portion 620 away from the supporting portion 610 and the end plate wind shield 212.

[0146] Reference Fig.19 As shown, further, in the extension direction from one end of the sealing part 620 connected to the supporting part 610 to the other end, the thickness of the middle section of the sealing part 620 is greater than the thickness of the two ends. Thus, the two ends of the sealing part 620 are more likely to deform, reducing the feedback resistance of the sealing member 600 and improving the user experience.

[0147] Preferably, the thickness of the sealing portion 620 changes from the end to the middle section from 0.2 mm to 1 mm, that is, the thickness of the end section is 0.2 mm, and the thickness of the middle section is 1 mm.

[0148] Furthermore, the ratio of the longitudinal distance from one end of the sealing portion 620 away from the supporting portion 610 to the thickest part of the sealing portion 620 to the longitudinal distance from one end of the sealing portion 620 connected to the supporting portion 610 to the other end (i.e., the distance H in the figure) is greater than or equal to one third and less than or equal to one half. For example, it can be one third, two fifths, one half, etc.

[0149] Furthermore, the ratio of the lateral distance from one end where the sealing part 620 and the supporting part 610 meet to the thickest part of the sealing part 620 to the lateral distance from one end where the sealing part 620 and the supporting part 610 meet to the other end (i.e., the distance S in the figure) is greater than or equal to one seventh and less than or equal to one third. For example, it can be one seventh, one sixth, one quarter, one third, etc.

[0150] Through the above-mentioned structure, it is beneficial for the end of the sealing part 620 away from the supporting part 610 to be more easily deformed upward under the extrusion of the drawer 200, so that the sealing part 620 can maintain the basic bending direction during the extrusion, but the degree of bending will increase, thereby making the sealing part 620 keep the guiding direction of the cold air toward the side where the air receiving hole 202 is located, so as to facilitate the smooth flow of air.

[0151] like Fig.19 As shown, further, a notch 602 is provided at the junction of the sealing portion 620 and the supporting portion 610, and the notch 602 is located on the side of the sealing portion 620 facing the bottom of the matching groove 601. Specifically, the cross-sectional shape of the notch 602 is arc-shaped. By providing the notch at the junction of the sealing portion 620 and the supporting portion 610, the junction of the sealing portion 620 and the supporting portion 610 is more likely to deform.

[0152] The minimum thickness at the notch 602 is designed to be greater than or equal to 0.2 mm and less than or equal to 0.4 mm, and is one quarter to one half, inclusive, of the maximum thickness of the sealing portion 620 .

[0153] like Fig.19As shown, the longitudinal distance from one end where the sealing portion 620 is connected to the support portion 610 to the other end is greater than or equal to 5 mm and less than or equal to 15 mm. In addition, the lateral distance from one end where the sealing portion 620 is connected to the support portion 610 to the other end is greater than or equal to 5 mm and less than or equal to 20 mm. As shown in the figure, the longitudinal distance from one end where the sealing portion 620 is connected to the support portion 610 to the other end is H, that is, H is greater than or equal to 5 mm and less than or equal to 15 mm. For example, it can be 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, etc. Preferably, the longitudinal distance from one end where the sealing portion 620 is connected to the support portion 610 to the other end is greater than or equal to 8 mm and less than or equal to 12 mm.

[0154] Reference Fig.19 As shown, the lateral distance from one end where the sealing portion 620 and the supporting portion 610 meet to the other end is S, that is, S is greater than or equal to 5 mm and less than or equal to 20 mm, for example, it can be 5 mm, 6 mm, 10 mm, 13 mm, 15 mm, 20 mm, etc. Preferably, the lateral distance from one end where the sealing portion 620 and the supporting portion 610 meet to the other end is greater than or equal to 10 mm and less than or equal to 15 mm.

[0155] If the extended length of the sealing portion 620 is too small, the deformation effect is not good, which affects the sealing effect. If the extended length of the sealing portion 620 is too large, it will also cause waste.

[0156] Reference Figure 8 As shown, when the drawer 200 is in the closed position, the longitudinal distance between the end of the sealing portion 620 connected to the support portion 610 and the lowest position of the top wall of the end plate hood 212 is greater than or equal to 5 mm and less than or equal to 10 mm. For example, it can be 5 mm, 7 mm, 8 mm, 10 mm. Ensuring that the end of the sealing portion 620 connected to the support portion 610 has a certain longitudinal distance from the top of the end plate hood 212 can reduce deformation resistance and ensure the sealing effect.

[0157] like Figure 8 As shown, a boss 2121 is provided on one side of the end plate hood 212 facing the inner side of the drawer 200. The boss 2121 extends in the left-right direction of the drawer 200, and the top surface position of the boss 2121 when the drawer 200 is in the closed position is lower than or flush with the position of the lowest end of the seal 600 in the natural state. Specifically, the top surface of the boss 2121 and the side of the end plate hood 212 facing the inner side of the drawer 200 form an angular surface. When the sealing portion 620 is bent, a part of it contacts the surface of the end plate hood 212, and a part of it contacts the top surface of the boss 2121, thereby forming a cavity together with the above-mentioned angular surface, which is conducive to improving the sealing effect.

[0158] Although not shown in the figure, in one embodiment, the insulation layer is a cold storage structure, specifically, the cold storage structure is plate-shaped, has a cavity, and contains a cold storage agent. Or it is directly made of cold storage material. The cold storage structure absorbs and stores cold energy from one side of the air supply duct and slowly releases it to one side of the accommodation chamber, thereby helping to maintain the temperature of the accommodation chamber.

[0159] Although not shown in the figure, in one embodiment, the temperature insulation layer can also be a plate made of other materials with certain thermal conductivity, such as a temperature balancing plate, a plastic plate, etc. Among them, the temperature balancing plate can also play the role of improving the temperature uniformity of the accommodation chamber. The plastic plate has low cost.

[0160] like Fig.21 and Fig. 22 As shown, in one embodiment, the refrigerator comprises a box body 1 and a fresh-keeping storage container 2 in any of the above embodiments. A storage compartment is defined in the box body 1, and the fresh-keeping storage container 2 is arranged in the storage compartment.

[0161] The refrigerator usually has multiple storage compartments for achieving different functions, such as a refrigerated storage compartment 11, a frozen storage compartment, a variable temperature storage compartment, etc. The number and function of the specific storage compartments can be configured according to pre-determined requirements. Fig.21 and Fig. 22 The cross-door refrigerator shown is only an example, and those skilled in the art can configure the specific number, function and layout of the storage compartments according to needs.

[0162] The refrigerator of this embodiment is an air-cooled refrigerator, and an air duct system is provided in the cabinet 1. The refrigeration air that has exchanged heat in the heat exchanger (evaporator) is sent to the storage compartment through the cabinet air supply port by a fan, and then returns to the air duct through the cabinet air return port to achieve circulating air refrigeration. Since the cabinet, door, and refrigeration system of this type of refrigerator are well known and easy to implement by those skilled in the art, in order not to cover up and obscure the invention of this application, the cabinet, door, and refrigeration system will not be described in detail below.

[0163] The fresh-keeping storage container 2 is used to be arranged in the cold storage compartment 11 of the refrigerator. Fig. 22 The example of setting a fresh-keeping storage container 2 in the refrigerated storage compartment 11 is shown. In addition to the fresh-keeping storage container 2, other storage drawers can also be set in the refrigerated storage compartment 11, such as Fig. 22 In addition to the fresh-keeping storage container 2 , the refrigerated storage compartment 11 is also provided with three other examples of drawer-type storage containers, one of which is arranged in parallel with the fresh-keeping storage container 2 in a horizontal manner.

[0164] Combination Figures 1 to 23As shown, the air inlet 103 of the fresh-keeping storage container 2 is used to connect to the space where the evaporator that supplies cold air to the refrigerated storage compartment 11 is located, so as to introduce airflow from the space where the evaporator is located, and the cold airflow is conducted to the accommodating compartment 101 in a thermally isolated manner via the magnetic field assembly 300, the insulation layer 50 and the side wall portion of the inner barrel body 120, so that the temperature of the side wall of the inner barrel body 120 facing the accommodating compartment 101 is maintained at greater than or equal to -3 degrees Celsius.

[0165] Specifically, Fig.23 1 is a schematic diagram of a wind path for supplying cold air to a fresh-keeping storage container 2 from a refrigerator according to an embodiment of the present invention. A refrigeration air duct assembly 12 is provided at the back of the refrigerated storage compartment 11. It should be noted that: Fig.23 In order to show the refrigeration duct assembly 12, other components in the refrigeration storage compartment 11, such as the refrigeration liner, the compartment insulation layer, etc., are hidden except the fresh-keeping storage container 2 and the refrigeration duct assembly 12. A refrigeration air supply fan 13 is arranged in the refrigeration duct assembly 12, and the refrigeration duct assembly 12 forms a fresh-keeping container air supply air path 14. The air inlet 103 of the fresh-keeping storage container 2 is connected to the space where the evaporator that supplies cold air to the refrigeration storage compartment 11 is located through the fresh-keeping container air supply air path 14. The refrigeration air supply fan 13 promotes the formation of a cold air flow from the space where the evaporator is located to the air inlet 103 of the fresh-keeping storage container 2 through the fresh-keeping container air supply air path 14.

[0166] As one of the multiple air supply paths provided by the refrigeration air duct assembly 12, the air flow of the fresh-keeping container air supply path 14 can be controlled and adjusted. For example, an independent adjustable damper can be provided in the fresh-keeping container air supply path 14; for another example, the refrigeration air duct assembly 12 is provided with other types of air flow distribution devices, and the air flow of the fresh-keeping container air supply path 14 can be controlled and adjusted.

[0167] Fig.23 The refrigeration air duct assembly 12 shown can use a centrifugal fan as the refrigeration air supply fan 13, and the refrigeration air supply fan 13 sucks low-temperature air in the space where the evaporator is located from the rear, forming a cold air flow that blows directly from the space where the evaporator is located to the air inlet 103 of the fresh-keeping storage container 2 through the fresh-keeping container air supply air path 14. The cold air enters the air supply duct 10 of the fresh-keeping storage container 2 through the air inlet 103.

[0168] Since the temperature of the cold air directly introduced from the space where the evaporator is located is very low, generally below -6 degrees Celsius, and even as low as -10 degrees Celsius, which is far below the suitable temperature for sub-zero refrigeration of food. Therefore, by making the cold air pass through the magnetic field assembly 300, the insulation layer 50 and the side wall of the inner barrel body 120 to conduct cold energy into the accommodation chamber 101, the cold energy carried by the cold air is conducted to the accommodation chamber 101 through the magnetic field assembly 300, the insulation layer 50 and the side wall of the inner barrel body 120 in a thermally isolated manner during the flow of the cold air in the air supply duct 10, that is, after the isolation of the magnetic field assembly 300, the insulation layer 50 and the side wall of the inner barrel body 120, only part of the cold energy of the cold air can be conducted to the accommodation chamber 101. In this way, even if the temperature of the cold air flowing out of the space where the evaporator is located is very low, after heat conduction through the magnetic field assembly 300, the insulation layer 50 and the side wall of the inner barrel body 120, it is possible to ensure that an appropriate amount of cold air is transferred to the storage compartment 101, so that the temperature of the side wall of the inner barrel body 120 facing the storage compartment 101 is maintained at or above -3 degrees Celsius, maintaining a suitable temperature for storing food below zero, so as to ensure that the food is not frozen at below zero.

[0169] Furthermore, the permanent magnet sheet 321 is made of ferrite magnetic powder and synthetic rubber composite material, and the thickness of the permanent magnet sheet 321 is greater than 2 mm, and the insulation layer 50 is set to set an air insulation layer, and the thickness of the air insulation layer is set to be greater than or equal to 1 mm and less than or equal to 3 mm. Under the above structure, with the low-temperature cold wind from the space where the evaporator is located, on the one hand, the permanent magnet sheet 321 of the above material and thickness and the air insulation layer of the above thickness, plus the side wall of the inner barrel 120, achieve the expected appropriate heat conduction effect, and ensure that the low-temperature cold wind from the space where the evaporator is located conducts appropriate cold to the storage compartment 101 through the uniform magnetic plate 310, the permanent magnet sheet 321, the air insulation layer and the side wall of the inner barrel 120, so that the temperature of the side wall of the inner barrel 120 facing the storage compartment 101 is indeed maintained above -3 degrees Celsius and below zero degrees Celsius, avoiding the problem of excessive cooling in the storage compartment 101, and ensuring the preservation effect of food.

[0170] On the other hand, the permanent magnet sheet 321 that meets the above-mentioned material and thickness also indeed generates a magnetic field that meets the requirements in the storage chamber 101, ensuring that the food in the storage chamber 101 is subjected to a suitable magnetic field, that is, the magnetic field and temperature in the storage chamber 101 are maintained within the required range, ensuring the preservation effect of the food. Moreover, the fresh-keeping storage container that meets the above-mentioned structure allows the temperature of the cold air flowing into the cold air duct 30 (that is, directly entering the storage chamber 101) to be maintained at a suitable sub-zero temperature after heat exchange, and when heat is exchanged to the food through the bottom wall of the drawer 200, it can still ensure that the temperature of the food is maintained within a suitable temperature range.

[0171] Multiple storage rooms can be spatially divided by racks, shelves, drawers, etc. to achieve corresponding storage functions, such as chilled, frozen, dry storage, etc. One or more fresh-keeping storage containers can be arranged in the refrigerator of this embodiment. In some optional embodiments, the fresh-keeping storage container can be arranged in one or more of the above-mentioned multiple storage rooms, and the long-term high-quality cold preservation of food materials such as meat and fish can be achieved through magnetic field and temperature control. For example, the fresh-keeping storage container can be arranged in any one of the refrigerated storage room, the frozen storage room, and the variable temperature storage room. For another example, the fresh-keeping storage container can also be arranged in multiple refrigerated storage rooms, frozen storage rooms, and variable temperature storage rooms at the same time, that is, fresh-keeping storage containers are respectively arranged in multiple different storage rooms at the same time. For another example, multiple fresh-keeping storage containers can also be arranged in a storage room at the same time as needed.

[0172] like Fig.24 As shown, in another embodiment of the fresh-keeping storage container, the insulation layer 50 is arranged on the side of the magnetic field assembly 300 facing the air supply duct 10, that is, the insulation layer 50 is located above the magnetic field assembly 300. Specifically, the insulation layer 50 can be an air insulation layer, a cold storage structure, or a plate made of other materials with certain thermal conductivity, such as a temperature-averaging plate, a plastic plate, etc. On the basis of preventing the storage chamber from being overcooled, the cold storage structure can absorb the cold air, continuously cool the magnetic field assembly, and continuously transfer cold air to the top of the storage chamber to maintain the temperature; the temperature-averaging plate can improve the temperature uniformity of the storage chamber; and the plastic plate saves costs.

[0173] like Fig.25 and Fig.26As shown, in another embodiment of the refrigerator, the air supply duct 10 is formed between the inner top wall of the storage compartment and the top wall of the inner barrel 120, and the inner top wall of the storage compartment constitutes the top duct wall of the air supply duct 10. Specifically, the box body 1 is formed with a fresh-keeping storage compartment 15 for placing a fresh-keeping storage container alone, the volume of the fresh-keeping storage compartment 15 is slightly larger than the volume of the fresh-keeping storage container, and the fresh-keeping storage container only includes the inner barrel 120. There is a gap between the top wall of the inner barrel 120 and the inner top wall of the fresh-keeping storage compartment 15, the magnetic field assembly 300 and the thermal insulation layer 50 are arranged in the gap, the air supply duct 10 is also formed in the gap, and the inner top wall of the fresh-keeping storage compartment 15 constitutes the top wall of the air supply duct 10. In addition, the magnetic field assembly 300 and the thermal insulation layer 50 are arranged between the air supply duct 10 and the top wall of the inner barrel 120. The thermal insulation layer 50 is arranged above the magnetic field assembly 300, thereby forming the bottom duct wall of the air supply duct 10. Specifically, the thermal insulation layer 50 can be an air thermal insulation layer, a cold storage structure, or a plate made of other materials with certain thermal conductivity. In other words, in this embodiment, the inner wall of the box body 1 (the top wall of the fresh-keeping compartment 15) constitutes the top wall of the outer shell in the above embodiment. Therefore, the other structures of this embodiment can be set with reference to the structure of the fresh-keeping storage container with an outer shell in the above embodiment.

[0174] It should be noted that, in some other embodiments, the thermal insulation layer may also be disposed below the magnetic field assembly, and the magnetic field assembly then constitutes the bottom duct wall of the air supply duct.

[0175] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A fresh-keeping storage container, comprising: An inner barrel body, wherein the inner barrel body is formed with a containing chamber, and an air supply duct is formed on the outer side of the top side wall of the inner barrel body; and A magnetic field component, the magnetic field component is arranged outside the top side wall of the inner barrel, the magnetic field component is arranged between the air supply duct and the accommodation chamber, and the magnetic field component is used to generate a magnetic field in the accommodation chamber; A temperature insulation layer is formed between the air supply duct and the accommodating chamber.

2. The fresh-keeping storage container according to claim 1, wherein: The thermal insulation layer is an air thermal insulation layer.

3. The fresh-keeping storage container according to claim 2, wherein: The temperature insulation layer is formed on a side of the magnetic field component away from the air supply duct.

4. The fresh-keeping storage container according to claim 3, wherein: The outer surface of the top side wall of the inner barrel body is provided with supporting ribs, and the supporting ribs support the magnetic field assembly so that the air temperature insulation layer is formed between the magnetic field assembly and the top side wall of the inner barrel body.

5. The fresh-keeping storage container according to claim 4, wherein: The magnetic field assembly comprises: A source magnetic component, wherein the source magnetic component is used to generate a magnetic field; A magnetic shimming plate is arranged on a side of the source magnetic component away from the containing chamber.

6. The fresh-keeping storage container according to claim 5, wherein: The source magnetic component is a structure composed of a permanent magnetic sheet and an electromagnetic coil. The support ribs form a placement groove, the electromagnetic coil is arranged in the placement groove, and the support ribs support the permanent magnetic sheet.

7. The fresh-keeping storage container according to claim 2, wherein: The magnetic field component constitutes an air duct wall of the air supply duct.

8. The fresh-keeping storage container according to claim 7, wherein: The fresh-keeping storage container comprises an air duct cover plate, which is arranged on a side of the magnetic field component away from the accommodating chamber, and a side of the air duct cover plate opposite to the magnetic field component forms the air supply duct.

9. The fresh-keeping storage container according to claim 8, wherein: A wind path recess is formed on one side of the wind duct cover plate facing the magnetic field assembly in a direction away from the magnetic field assembly. The wind path recess extends from the rear end to the front end of the wind duct cover plate. The wind path recess and the magnetic field assembly define the air supply duct.

10. The fresh-keeping storage container according to claim 1, wherein: The thermal insulation layer is a cold storage structure.

11. The fresh-keeping storage container according to claim 1, wherein: The ratio of the thermal conductivity to the thickness of the thermal insulation layer is greater than or equal to 5 and less than or equal to 100, wherein the unit of the thermal conductivity is W / m·degree and the unit of the thickness is meter.

12. The fresh-keeping storage container according to claim 1, wherein: The fresh-keeping storage container comprises two magnetic field components and two magnetic conductive parts, one magnetic field component is arranged on the outside of the top side wall of the inner barrel body, and the other magnetic field component is arranged on the outside of the bottom side wall of the inner barrel body; The two magnetic conductive parts are respectively arranged on the outer side of the left wall and the outer side of the right wall of the inner barrel body, and the two ends of the magnetic conductive parts are respectively connected to the two magnetic field components.

13. The fresh-keeping storage container according to claim 1, wherein: The fresh-keeping storage container also includes an outer shell, which is sleeved on the outside of the inner barrel, and a sandwich space is formed between the top side wall of the outer shell and the top side wall of the inner barrel, and the air supply duct, the magnetic field assembly and the thermal insulation layer are arranged in the sandwich space.

14. The fresh-keeping storage container according to claim 1, wherein: The temperature insulation layer is arranged on a side of the magnetic field component facing the air supply duct.

15. A refrigerator comprising the fresh-keeping storage container according to any one of claims 1 to 14.

16. The refrigerator according to claim 15, wherein: The refrigerator comprises a box body, the box body is formed with a storage compartment, and the fresh-keeping storage container is arranged in the storage compartment.

17. The refrigerator according to claim 16, wherein: The air supply duct is formed between the inner top wall of the storage compartment and the top wall of the inner barrel body, and the inner top wall of the storage compartment constitutes the top duct wall of the air supply duct.

18. The refrigerator according to claim 17, wherein: The magnetic field component constitutes the bottom duct wall of the air supply duct, or the thermal insulation layer constitutes the bottom duct wall of the air supply duct.

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