Magnetic field fresh-keeping storage container and refrigerator

Abstract

The invention provides a magnetic field fresh-keeping storage container and a refrigerator. The magnetic field fresh-keeping storage container comprises a barrel body and a magnetic field sensor, wherein the barrel body is internally provided with a fresh-keeping storage space for placing stored objects; the first magnetic field assembly and the second magnetic field assembly are respectively arranged on a group of opposite side walls of the barrel body and are configured to form a magnetic field in the fresh-keeping storage space; each magnetic field connecting piece comprises a main body plate and turned-over edges extending out of the two ends of the main body plate, and the main body plates of the magnetic field connecting pieces are arranged in the side walls, connected with the side walls where the first magnetic field assembly and the second magnetic field assembly are located, of the barrel body correspondingly; the first magnetic field assembly and the second magnetic field assembly are connected through flanges. According to the scheme, the magnetic field connecting piece is connected to the first magnetic field assembly and the second magnetic field assembly in the magnetic communication mode through the turned-over edges, a simpler and more convenient assembling mode can be achieved, and magnetic circuit communication is smoother.

Description

Technical Field

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

[0002] Fresh meat, fish and shrimp are prone to juice loss during storage, which leads to poor taste and darker color. As people's demand for quality of life increases, higher requirements are also placed on the preservation and storage effects of such ingredients. Therefore, the preservation and storage effects of household refrigeration and freezing equipment such as refrigerators have become an important indicator for measuring the performance of such equipment.

[0003] Research has found that magnetic fields have a significant impact on the formation of ice crystals during the freezing process. Technicians have also tried to apply magnetic field preservation technology in household refrigeration and freezing equipment. However, in actual testing and use, the magnetic field components cannot be used stably and reliably for a long time due to the special environmental influences of refrigeration and freezing. Summary of the invention

[0004] An object of the present invention is to provide a method for effectively improving the long-term operation stability of a magnetic field component in a magnetic field fresh-keeping storage container.

[0005] A further object of the present invention is to ensure that the magnetic field connector can reliably connect the first magnetic field component and the second magnetic field component.

[0006] Another further object of the present invention is to form a ring-shaped magnetic conductive path outside the fresh-keeping storage space by the magnetic component, so that a uniform magnetic field with a strength sufficient to meet the storage quality requirements is formed in the fresh-keeping storage space.

[0007] In particular, the present invention provides a magnetic field fresh-keeping storage container, comprising:

[0008] The barrel body has a fresh-keeping storage space for storing stored items;

[0009] The first magnetic field assembly and the second magnetic field assembly are respectively disposed on a set of opposite side walls of the barrel body and are configured to form a magnetic field in the fresh-keeping storage space;

[0010] At least one magnetic field connector, each magnetic field connector includes a main plate and flanges extending from both ends of the main plate, and the main plate of the magnetic field connector is respectively arranged in a side wall of the barrel body connected to the side wall where the first magnetic field component and the second magnetic field component are located, and is connected to the first magnetic field component and the second magnetic field component through the flanges.

[0011] Optionally, one or more fixing structures are provided on the barrel body for each magnetic field connector, and the magnetic field connector is fixed to the barrel body by using the fixing structures, thereby ensuring that the flange of the magnetic field connector is reliably connected to the first magnetic field assembly and the second magnetic field assembly.

[0012] Optionally, the barrel comprises:

[0013] The inner barrel defines a fresh-keeping storage space, and

[0014] The first magnetic field component, the second magnetic field component and the magnetic field connector are respectively arranged on the outer side of the inner barrel body, and the fixing structure is arranged on the inner barrel body.

[0015] Optionally, a main plate fixing hole is provided in the middle of the main plate of the magnetic field connector, and

[0016] The fixing structure comprises a main body plate fixing structure, which is arranged at a position on the inner barrel body corresponding to the main body plate fixing hole and connected to the main body plate fixing hole.

[0017] Optionally, the ratio of the hole diameter of the main plate fixing hole to the width direction of the main plate is set to be less than or equal to 20%, and the hole diameter of the main plate fixing hole is less than or equal to 20 mm.

[0018] Optionally, the first magnetic field component is disposed above the top wall of the inner barrel body, and the second magnetic field component is disposed below the bottom wall of the inner barrel body; and

[0019] There are two magnetic field connectors, and the main plates of the two magnetic field connectors are respectively arranged on the outer sides of the side walls on both sides of the inner barrel body, and the flanges are arranged at the upper and lower ends of the main plates and extend toward the sides of the first magnetic field component and the second magnetic field component.

[0020] The main plate of the magnetic field connector is respectively arranged on the outer side of the side walls on both sides of the inner barrel, and the flanges are arranged on the upper and lower ends of the main plate and extend toward the sides of the first magnetic field component and the second magnetic field component.

[0021] Optionally, a flange fixing hole is provided on the flange, and the fixing structure further includes a flange fixing structure, which is arranged on the top wall and the bottom wall of the inner barrel body at positions corresponding to the flange fixing hole and is connected to the flange fixing hole.

[0022] Optionally, the inner barrel body extends protruding walls at the top and bottom ends of the side wall where the main plate of the magnetic field connector is located; and the fixing structure also includes a through hole, which is arranged on the protruding wall and is adapted to the shape of the flange, and the flange extends through the through hole to the first magnetic field component or the second magnetic field component.

[0023] Optionally, the first magnetic field assembly and the second magnetic field assembly respectively include a magnetic source sheet and a magnetic conductive plate, and the magnetic source sheet is attached to the central area of ​​the magnetic conductive plate, and the flanges of the magnetic field connector are respectively connected to the edges of the magnetic conductive plate.

[0024] Optionally, the first magnetic field component and the second magnetic field component further include electromagnetic coils, respectively, which are arranged on the side of the corresponding magnetic source sheet opposite to the magnetic conductive plate, and the magnetic source sheet is a permanent magnet sheet with uniform magnetization; the effective magnetic field strength range of the magnetic field is 10-100GS, and the effective spacing range is 60-240mm.

[0025] According to another aspect of the present invention, there is also provided a refrigerator comprising any one of the above-mentioned magnetic field fresh-keeping storage containers.

[0026] In the magnetic field fresh-keeping storage container and refrigerator of the present invention, the first magnetic field component and the second magnetic field component are arranged on a set of opposite side walls of the barrel body, and a magnetic field is formed in the fresh-keeping storage space. The magnetic field helps to improve the storage quality, shorten the freezing time, reduce the juice loss rate and nutrient loss of food, reduce the number of microorganisms and bacteria, and extend the fresh-keeping period. The magnetic field connector connects the first magnetic field component and the second magnetic field component from the other side walls of the barrel body, forming an annular magnetic conductive path outside the magnetic field fresh-keeping space, adjusting the distribution of the magnetic field inside the magnetic field fresh-keeping space, and gathering the magnetic field outside the magnetic field fresh-keeping space. The magnetic field connector is connected to the first magnetic field component and the second magnetic field component through the flanges extending from the two ends of the main plate, which can achieve a simpler assembly method and smoother magnetic circuit connection.

[0027] Furthermore, in view of the differences in thermal barrier and cold shrinkage properties of different materials of the barrel body, the first magnetic field component, the second magnetic field component and the magnetic field connector of the magnetic field fresh-keeping storage container, the first magnetic field component, the second magnetic field component and the magnetic field connector may be unreliably connected or even cracked during long-term operation. In the solution of the present invention, one or more fixing structures are provided on the barrel body for each magnetic field connector, and the magnetic field connector is fixed to the barrel body by the fixing structure. Such a connection and fixing structure can ensure that the magnetic field components are stably and reliably connected for a long time and will not be damaged due to thermal barrier and cold shrinkage.

[0028] Furthermore, in the magnetic field preservation storage container and refrigerator of the present invention, the first magnetic field component, the second magnetic field component, and the magnetic field connector are respectively arranged in the barrel wall interlayer of the barrel body, which reduces the distance between the magnetic field generating element and the stored objects, and is conducive to improving the sealing of the magnetic field preservation storage container. In addition, the user will not see the magnetic field element during normal use, and the visual appearance is better.

[0029] Furthermore, the magnetic field fresh-keeping storage container of the present invention optimizes the fixing structure of the inner barrel and the magnetic field connector, which improves the reliability of the fixing on the one hand and saves the space occupied by the magnetic component on the other hand.

[0030] 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

[0031] 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:

[0032] Figure 1 is a schematic diagram of the relative positions of a barrel and a magnetic field device in a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of a barrel in a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of a magnetic field device in a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0035] Figure 4 is a schematic diagram of an inner barrel in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0036] Figure 5 is a schematic diagram of a magnetic field device in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0037] Figure 6 is a schematic diagram of the relative positions of an inner barrel and a magnetic field device in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0038] Figure 7 is a schematic diagram of an inner barrel in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0039] Figure 8 is a schematic diagram of a magnetic field device in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0040] Fig. 9 is a schematic diagram of the relative positions of an inner barrel and a magnetic field device in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0041] Fig.10 is a front view of a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0042] Fig.11 is a schematic diagram of a magnetic field fresh-keeping storage container at one angle according to an embodiment of the present invention;

[0043] Fig.12 yes Fig.10 A cross-sectional view of the magnetic field preservation storage container along the AA direction shown;

[0044] Fig.13is a schematic diagram of a magnetic field device in a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0045] Fig.14 yes Fig.13 An exploded view of the components of the magnetic field device shown;

[0046] Fig.15 It is a schematic diagram of the cooperation between the first magnetic conductive plate and the first magnetic source sheet in the magnetic field fresh-keeping storage container according to one embodiment of the present invention;

[0047] Fig.16 is a schematic diagram of the installation position of a magnetic field connector in a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0048] Fig.17 It is a matching structure of a magnetic field connector and a first magnetic conductive plate in a magnetic field fresh-keeping storage container according to an embodiment of the present invention and a partial enlarged diagram thereof;

[0049] Fig.18 is a schematic diagram of a refrigerator according to an embodiment of the present invention; and

[0050] Fig.19 yes Fig.18 The refrigerator shown is a schematic diagram with the upper door hidden. DETAILED DESCRIPTION

[0051] 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.

[0052] In the description of the present embodiment, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" 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 embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For example, except for individual explicit definitions of other orientations, in the present embodiment, the direction from the refrigerator body toward the door body is the front, the direction relative to the door body toward the body is the back, the direction toward the ground on which the refrigerator is installed is the bottom, and the direction opposite to the ground is the top.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Figure 1 Schematic diagram of the relative positions of the barrel 310 and the magnetic field device 410 in the magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention. Figure 2 Schematic diagram of a barrel 310 in a magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention. Figure 3 Schematic diagram of a magnetic field device 410 in a magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention.

[0056] The magnetic field fresh-keeping storage container 30 of this embodiment may generally include: a barrel 310 and a magnetic field device 410. Among them, a fresh-keeping storage space 330 for placing stored objects is provided inside the barrel 310. The barrel 310 may be in the shape of a rectangular parallelepiped. In some embodiments, the barrel 310 may have a forward opening, and a drawer that can be pulled out from the forward opening may be provided inside the barrel 310, so as to use the drawer to hold the stored objects. The barrel 310 may include a barrel top wall 311, a barrel bottom wall 312, a barrel left side wall 314, and a barrel right side wall 315.

[0057] A necessary condition for the magnetic field fresh-keeping storage container 30 to achieve long-term fresh-keeping storage is to apply a magnetic field for fresh-keeping in the fresh-keeping storage space 330. After in-depth research on the fresh-keeping effect, the magnetic field parameters of the magnetic field fresh-keeping storage container 30 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 is 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.

[0058] The magnetic field device 410 in the magnetic field fresh-keeping storage container 30 may include: a first magnetic field component 411 and a second magnetic field component 421, which are respectively arranged on a set of opposite side walls of the barrel body 310 and are configured to form a magnetic field in the fresh-keeping storage space 330. The first magnetic field component 411 and the second magnetic field component 421 can be respectively arranged in the barrel body top wall 311 and the barrel body bottom wall 312, or in the barrel body left side wall 314 and the barrel body right side wall 315. In the embodiment in which the magnetic field fresh-keeping storage container 30 uses a drawer-type structure, the distance between the barrel body top wall 311 and the barrel body bottom wall 312 is smaller and the area is larger, and the first magnetic field component 411 and the second magnetic field component 421 are preferentially arranged on the barrel body top wall 311 and the barrel body bottom wall 312. In some embodiments, the first magnetic field component 411 and the second magnetic field component 421 can be arranged in the middle interlayer 331 of the barrel body 310. In other embodiments, the first magnetic field component 411 and the second magnetic field component 421 can also be arranged on the outside of the inner barrel body 318 of the barrel body 310.

[0059] The first magnetic field component 411 and the second magnetic field component 421 can adopt a substantially similar structure. For example, the first magnetic field component 411 can include a first magnetic source sheet 414 and a first magnetic conductive plate 413. In some embodiments, the first magnetic field component 411 can further include a first electromagnetic coil. Correspondingly, the second magnetic field component 421 can include a second magnetic source sheet 424 and a second magnetic conductive plate 423. In some embodiments, a second electromagnetic coil can be further included in the second magnetic field component 421. The first magnetic source sheet 414 is attached to the central area of ​​the first magnetic conductive plate 413, and the second magnetic source sheet 424 is attached to the central area of ​​the second magnetic conductive plate 423.

[0060] The first magnetic source sheet 414 and the second magnetic source sheet 424 can be permanent magnet sheets that are uniformly magnetized. Considering the coordination with the first magnetic conductive plate 413 and the second magnetic conductive plate 423, the permanent magnet sheets can be made of permanent magnet materials with certain flexibility. For example, a rubber magnet sheet with flexibility made by a composite of bonded ferrite powder and synthetic rubber and a calendering molding process can be used.

[0061] The magnetization intensity of the first magnetic source sheet 414 and the second magnetic source sheet 424 is required to meet the above-mentioned effective magnetic field intensity range of 10GS-100GS (1-10mT) formed in the fresh-keeping storage space 330, and can be further set to 20-80GS, and the effective magnetic field spacing range is 60-240mm. The magnetic field directions of the first magnetic source sheet 414 and the second magnetic source sheet 424 are set to be perpendicular to their own surfaces respectively.

[0062] The first magnetic conductive plate 413 and the second magnetic conductive plate 423 are made of materials with low coercive force and high magnetic permeability. The area of ​​the first magnetic conductive plate 413 can be slightly larger than the first magnetic source sheet 414, and the area of ​​the second magnetic conductive plate 423 can be slightly larger than the second magnetic source sheet 424. The first magnetic conductive plate 413 and the first magnetic source sheet 414 cooperate, and the second magnetic conductive plate 423 and the second magnetic source sheet 424 cooperate, which can achieve close fit and zero gap fit, thereby improving the uniformity of the magnetic field.

[0063] At least one magnetic field connector 431 is used to connect the first magnetic field assembly 411 and the second magnetic field assembly 421. The magnetic field connector 431 can be made of the same material as the first magnetic conductive plate 413 and the second magnetic conductive plate 423. Each magnetic field connector 431 includes a main body plate 4312 and flanges 4311 extending from both ends of the main body plate 4312. The main body plates 4312 of the magnetic field connector 431 are respectively arranged in a side wall of the barrel body 310 where the barrel body is connected to the side wall where the first magnetic field assembly and the second magnetic field assembly are located, and are connected to the first magnetic field assembly 411 and the second magnetic field assembly 421 through the flanges 4311.

[0064] For example, when the first magnetic field assembly 411 and the second magnetic field assembly 421 can be respectively arranged in the barrel top wall 311 and the barrel bottom wall 312, the main plate 4312 of the magnetic field connector 431 can be arranged on the barrel left side wall 314, the barrel right side wall 315, and the barrel rear wall; the flange 4311 is arranged at the top or bottom of the main plate 4312. There can be two magnetic field connectors 431, and the main plates 4312 of the two magnetic field connectors 431 can be arranged on the barrel left side wall 314 and the barrel right side wall 315 to form an annular external magnetic circuit.

[0065] For another example, when the first magnetic field assembly 411 and the second magnetic field assembly 421 can be respectively arranged on the left side wall 314 and the right side wall 315 of the barrel body, the main plate 4312 of the magnetic field connector 431 can be arranged on the top wall 311, the bottom wall 312 and the rear wall of the barrel body; the flange 4311 is arranged on the left end or the right end of the main plate 4312. There can be two magnetic field connectors 431, and the main plates 4312 of the two magnetic field connectors 431 can be arranged on the left side wall 314 and the right side wall 315 of the barrel body to form an annular external magnetic circuit.

[0066] The flange 4311 of the magnetic field connector 431 is respectively connected to the edge of the first magnetic conductive plate 413 and the second magnetic conductive plate 423. The magnetic field connector 431 is connected to the first magnetic field assembly 411 and the second magnetic field assembly 421 through the flange 4311, which can achieve a simpler assembly method. In this connection method, the magnetic field connector 431 can be more reliably connected to the first magnetic field assembly 411 and the second magnetic field assembly 421, and the magnetic circuit is more smoothly connected.

[0067] In order to avoid affecting the distribution of the magnetic field, the end of the flange 4311 of the magnetic field connector 431 is required to have a certain gap with the edges of the first magnetic source sheet 414 and the second magnetic source sheet 424 .

[0068] One or more fixing structures are provided on the barrel body 310 for each magnetic field connector 431 , and the magnetic field connector 431 is fixed to the barrel body 310 by using the fixing structures, thereby ensuring that the flange 4311 of the magnetic field connector 431 is reliably connected to the first magnetic field assembly 411 and the second magnetic field assembly 421 .

[0069] In the prior art, the magnetic field device is generally assembled and formed, and then assembled as a whole on the magnetic field preservation container. When it needs to be fixed, the first magnetic field component 411 or the second magnetic field component 421 with a large clamping area such as a claw is generally used. However, during the research and development process, the inventor found that the magnetic field device 410 and the barrel 310 are generally made of different materials, and their physical properties are very different. In particular, when the magnetic field preservation storage container 30 is used in a refrigerator, during long-term refrigeration and storage, the magnetic field device 410 is prone to loosening and other problems. In severe cases, it may cause the magnetic field device 410 to break, which greatly reduces the preservation and storage effect.

[0070] In addition, due to the distribution of the magnetic field and structural requirements, the connection contact position between the flange 4311 of the magnetic field connector 431 and the first magnetic field component 411 and the second magnetic field component 421 is relatively small. During long-term use in the alternating process of refrigeration and storage, the connection part may also be disconnected due to force.

[0071] As a result of the above in-depth research, the inventors have avoided the above-mentioned problems by providing a fixing structure on the barrel body 310 specifically for fixing the magnetic field connector 431, so that the magnetic field connector 431 is firmly fixed on the barrel body 310. This ensures the long-term operating stability of the magnetic field component in the magnetic field preservation storage container 30, reduces the external force on the magnetic field connector 431, and thereby ensures that the magnetic field connector 431 can reliably connect the first magnetic field component 411 and the second magnetic field component 421.

[0072] The barrel body 310 may include an inner barrel body 318. The barrel body 310 may further be provided with a barrel shell 3101 on the outer side of the inner barrel body 318, and the shell 3101 serves as the outermost layer of the fresh-keeping storage container 30. In some embodiments, the barrel shell 3101 may not be provided outside a part of the side wall of the inner barrel body 318, and other insulation parts or injection molded parts or adjacent components in the refrigerator may be used as the outermost layer of the fresh-keeping storage container 30.

[0073] The inner barrel 318 can be formed by injection molding, and the inside is used to place drawers, or directly place stored items. In some embodiments, the inner barrel 318 can be a one-piece piece or formed by splicing multiple liner components by snap-fitting or other connection methods. For example, the inner barrel 318 can be split into three to four liner components according to the convenience of assembly.

[0074] There is a sandwich space 331 between the inner barrel body 318 and the barrel outer shell 3101, which can be used to form an air duct, a heat preservation layer, and a space for arranging the above-mentioned magnetic field device 410. The first magnetic field component 411, the second magnetic field component 421, and the magnetic field connector 431 can be respectively arranged between the barrel outer shell 3101 and the inner barrel body 318, and the fixed structure is arranged on the inner barrel body 318. The first magnetic field component 411, the second magnetic field component 421, and the magnetic field connector 431 are fixed on the inner barrel body 318, which can make the magnetic source component closer to the stored object and improve the application efficiency of the magnetic field.

[0075] exist Figure 1-3 In the structure shown, the first magnetic field assembly 411 is arranged above the top wall of the inner barrel 318, and the second magnetic field assembly 421 is arranged below the bottom wall of the inner barrel 318; and the main body plate 4312 of the magnetic field connector 431 is respectively arranged on the outside of the side walls on both sides of the inner barrel 318, and the flange 4311 is arranged at the upper end and the lower end of the main body plate 4312, and extends toward the side of the first magnetic field assembly 411 and the second magnetic field assembly 421. Alternatively, the magnetic field connector 431 can be three or more, and its main body plate 4312 can be respectively arranged on the outside of the side walls, rear wall, etc. on both sides of the inner barrel 318.

[0076] One way of fixing the structure may be: the inner barrel body 318 extends protruding walls 381 at the top and bottom of the side wall where the main plate 4312 of the magnetic field connector 431 is located; and the fixing structure also includes a through hole, which is arranged on the protruding wall 381 and matches the shape of the flange 4311. The flange 4311 extends through the through hole to the first magnetic field component 411 or the second magnetic field component 421. In other words, the inner barrel body 318 fixes the position of the magnetic field connector 431 through the through hole formed on the protruding wall 381.

[0077] Figure 4 is a schematic diagram of an inner barrel 318 in a magnetic field fresh-keeping storage container 30 according to another embodiment of the present invention. Figure 5 is a schematic diagram of a magnetic field device 410 in a magnetic field fresh-keeping storage container 30 according to another embodiment of the present invention; Figure 6 3 is a schematic diagram of the relative positions of the inner barrel 318 and the magnetic field device 410 in the magnetic field fresh-keeping storage container 30 according to another embodiment of the present invention. In order to facilitate the illustration of the fixed structure, Figure 4-6 The barrel casing is omitted.

[0078] In this fixing method, a flange fixing hole 4313 is provided on the flange 4311, and the fixing structure further includes a flange fixing structure 3811, which is arranged on the top wall and the bottom wall of the inner barrel 318 at positions corresponding to the flange fixing hole 4313 and connected to the flange fixing hole 4313. The flange fixing structure 3811 can ensure the structural reliability of the fixed position of the flange 4311 and the first magnetic field assembly 411 and the second magnetic field assembly 421 by fixing the flange 4311. The flange fixing structure 3811 can fix the flange fixing hole 4313 by bolts, rivets, etc.

[0079] Figure 7 3 is a schematic diagram of an inner barrel 318 in a magnetic field fresh-keeping storage container according to another embodiment of the present invention. Figure 8 is a schematic diagram of a magnetic field device 410 in a magnetic field fresh-keeping storage container according to another embodiment of the present invention; Fig. 9 Schematic diagram of the relative positions of the inner barrel 318 and the magnetic field device 410 in the magnetic field fresh-keeping storage container 30 of another embodiment of the present invention. A main plate fixing hole 4314 is provided in the middle of the main plate 4312 of the magnetic field connector 431, and the fixing structure includes a main plate fixing structure 3812, which is arranged at a position on the inner barrel corresponding to the main plate fixing hole 4314 and connected to the main plate fixing hole 4314. In this fixing method, the main plate fixing structure 3812 can reliably fix the magnetic field connector 431 to the side wall of the inner barrel 318. The main plate fixing structure 3812 can be a convex column provided on the inner barrel 318, or a connecting member such as a screw or a rivet column.

[0080] In the field of magnetic field, those skilled in the art are aware that gaps and holes on the magnetic path will affect the magnetic field distribution, so holes are generally avoided on the magnetic path. After a lot of research and testing, the inventors have determined the size of the fixed hole that has less impact on the magnetic field distribution. That is, the ratio of the aperture of the main plate fixing hole 4314 to the width direction of the main plate 4312 is set to be less than or equal to 20%, and the aperture of the main plate fixing hole 4314 is less than or equal to 20mm, and can be further set to be less than or equal to 10mm, for example, 10mm, 8mm, 6mm can be selected to cooperate with fasteners of corresponding diameters. Such a setting can, on the one hand, ensure the connection reliability of the main plate 4312, and on the other hand, reduce the impact on the magnetic field distribution.

[0081] Each magnetic field connector 431 may be disposed in a direction perpendicular to the first magnetic conductive plate 413 and the second magnetic conductive plate 423. That is, the magnetic field connector 431 provides the shortest magnetic connection path connecting the first magnetic field assembly 411 and the second magnetic field assembly 421. In some embodiments, the magnetic field connector 431 may have a consistent width from the end connected to the first magnetic field assembly 411 to the end connected to the second magnetic field assembly 421, that is, the magnetic field connector 431 has a uniform width as a whole.

[0082] Two ends of the magnetic field connector 431 are respectively connected to the first magnetic conductive plate 413 and the second magnetic conductive plate 423 . The corresponding sides of the first magnetic field component 411 and the second magnetic field component 421 are the corresponding sides of the first magnetic conductive plate 413 and the second magnetic conductive plate 423 .

[0083] The magnetic source sheet is attached to the side of the magnetic conductive plate close to the fresh-keeping storage space 330, that is, the first magnetic source sheet 414 is located below the first magnetic conductive plate 413, and the second magnetic source sheet 424 is located above the second magnetic conductive plate 423. The flange 4311 of the magnetic field connector 431 uses the side away from the fresh-keeping storage space 330 to contact the edge of the side of the magnetic conductive plate close to the fresh-keeping storage space 330. That is, the top flange contacts the edge of the lower surface of the first magnetic conductive plate 413; and that is, the top flange contacts the edge of the upper surface of the second magnetic conductive plate 423. The size of the contact area between the flange 4311 and the first magnetic conductive plate 413 and the second magnetic conductive plate 423 along the extension direction of the flange is in the range of 1 to 10 mm, for example, 6 mm. The cross-sectional area (the product of width and thickness) of each magnetic field connector 431 can be greater than or equal to the area of ​​the contact area.

[0084] In one embodiment, the size parameters of the first magnetic source sheet 414 and the second magnetic source sheet 424 can be: about 400 mm in length, about 330 mm in width, and about 3 mm in thickness; the size parameters of the first magnetic conductive plate 413 and the second magnetic conductive plate 423 can be: about 1 mm in thickness, and the extension length of the extension part 4131 is about 10 mm; the size parameters of the connecting member 431 can be: about 1 mm in thickness, about 100 mm in width, and the extension length of the flange 4311 is about 16 mm. The overlapping size of the flange 4311 of the connecting member 431 and the extension part 4131 of the magnetic conductive plate is about 6 mm.

[0085] Fig.10 is a front view of a magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention; Fig.11: is a schematic diagram of a magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention at an angle. The magnetic field fresh-keeping storage container 30 is a drawer-type structure. The barrel body 310 is box-shaped as a whole and has a forward opening. The drawer 320 is arranged inside the barrel body 310 in a pull-out manner through the forward opening. When the drawer 320 is placed in the barrel body 310, the drawer end plate assembly 321 of the drawer 320 can seal the forward opening of the barrel body 310, so that a closed storage environment is formed inside the barrel body 310, so that the drawer 320 and the barrel body 310 jointly define a fresh-keeping storage space 330. When the drawer 320 is pulled out of the barrel body 310, the drawer 320 reveals the space at the top, which can be used to take out and put the stored objects.

[0086] The barrel body air supply port 316 connected to the fresh-keeping container air supply channel is provided at the rear of the barrel body top wall 311 near the barrel body rear wall 313. The fresh-keeping container air supply channel can be an air duct specially used to provide cooling airflow for the fresh-keeping storage container 30. The barrel body top wall 311 where the barrel body air supply port 316 is located can be set to have a certain inclination angle so as to cooperate with the fresh-keeping container air supply channel. The barrel body return air port 317 is set on one side of the barrel body air supply port 316 and is spaced apart from the barrel body air supply port 316.

[0087] Another necessary condition for the magnetic field fresh-keeping storage container 30 to achieve long-term fresh-keeping storage is to maintain the temperature in the fresh-keeping storage space 330 within the set fresh-keeping temperature range, and the refrigeration process will not be too low or too high, especially the temperature of each area of ​​the fresh-keeping storage space 330 is uniform. In some embodiments, the fresh-keeping temperature range can be set at -2°C to 1°C, for example, it can be set to -2°C to 0°C. The stored objects can avoid being frozen and maintain the most suitable fresh-keeping temperature. 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. The refrigeration airflow is in direct contact with the stored objects, which will obviously cause the stored objects to be overcooled and frozen or tissue damaged, affecting the fresh-keeping storage effect. In addition, the refrigeration airflow cannot flow evenly through the entire storage space, which will cause the temperature of the fresh-keeping storage space 330 to be uneven, and will also cause the fresh-keeping storage effect to decrease. The magnetic field fresh-keeping storage container 30 of this embodiment optimizes the internal wind path structure to prevent the refrigeration airflow from entering the fresh-keeping storage space 330 and contacting the stored objects, thereby ensuring that the temperature inside the fresh-keeping storage space 330 is stable and uniform.

[0088] Fig.12 yes Fig.10 The cross-sectional view of the magnetic field preservation storage container 30 along the AA direction is shown. Fig.12 The direction of the arrow in FIG. 3 is the internal airflow direction of the magnetic field fresh-keeping storage container 30 .

[0089] The air path inside the magnetic field fresh-keeping storage container 30 is configured as follows: the airflow enters the rear end of the air supply section 341 (also referred to as the top wall air path section) of the internal air path of the magnetic field fresh-keeping storage container 30 defined in the top wall of the barrel body from the barrel body air supply port 316, and then the airflow flows through the air supply section 341 from back to front. At the front end of the air supply section 341, the airflow enters the top of the wind section (also referred to as the end plate wind path section) of the internal air path of the magnetic field fresh-keeping storage container 30 defined in the drawer end plate assembly 321, and then the airflow flows from top to bottom through the wind section 342. At the bottom end of the wind section 342, the airflow enters the gap between the drawer bottom plate 322 and the barrel body bottom wall 312, which serves as the cold transmission section (also referred to as the bottom wall wind path section) of the internal air path of the magnetic field fresh-keeping storage container 30, and then the airflow flows from front to back through the first cold transmission section 343. At the connection position between the rear end of the drawer bottom plate 322 and the drawer rear plate 323 (i.e., the rear end of the cold transmission section 343), the airflow enters the gap between the drawer rear plate 322 and the barrel body rear wall 313, which can be used as the barrel inner return air section 344 (also called the rear wall air path section). The middle of the barrel body rear wall 313 is provided with an inner barrel body return air port 346, and the barrel body rear wall is provided with an inter-barrel return air section 345 from the inner barrel body return air port 346 to the barrel body return air port 317. The airflow finally reaches the barrel body return air port 317 from the inner barrel body return air port 346 via the inter-barrel return air section 345.

[0090] The internal air path of the magnetic field fresh-keeping storage container 30 surrounds the entire magnetic field fresh-keeping storage container 30. Without entering the fresh-keeping storage space 330 and thus without directly contacting the stored objects, sufficient heat exchange can be achieved to evenly cool the magnetic field fresh-keeping storage container 30.

[0091] In addition, the internal air path of the magnetic field fresh-keeping storage container 30 is also compatible with the temperature characteristics of the refrigeration airflow. During the flow process, the refrigeration airflow gradually exchanges heat, and its own temperature gradually increases. The airflow temperature of the air supply section 341 is the lowest, and the air supply section 341 is formed inside the interlayer of the barrel top wall 311, and the cold energy is conducted downward from the barrel top wall 311. The distance between the stored objects and the barrel top wall 311 is relatively far, and the heat transfer efficiency is the worst. In the wind section 342, the heat transfer efficiency of the drawer end plate assembly 321 is also weaker than that of the drawer bottom plate 322. The gap between the drawer bottom plate 322 and the barrel bottom wall 312 is used as the cold transfer section 343, and the cold energy exchanges heat with the drawer bottom plate 322, and its heat exchange efficiency is the highest. In other words, as the air flow temperature increases, the heat exchange efficiency of each air path section is relatively improved, which makes the temperature of each position of the fresh-keeping storage space 330 roughly equivalent. The solution of this embodiment realizes an independent surrounding air supply mode in the sealed magnetic field fresh-keeping storage container 30, thereby ensuring the temperature conditions required for fresh-keeping storage.

[0092] Fig.13is a schematic diagram of a magnetic field device 410 in a magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention, Fig.14 yes Fig.13 An exploded view of the components of magnetic field device 410 is shown.

[0093] The first magnetic field component 411 and the second magnetic field component 421 are arranged opposite to each other and adopt a basically the same structure. The first magnetic field component 411 may include a first magnetic source sheet 414, a first magnetic conductive plate 413, and a first electromagnetic coil 415, and the second magnetic field component 421 may include a second magnetic source sheet 424, a second magnetic conductive plate 423, and a second electromagnetic coil 425. The area where the first magnetic conductive plate 413 contacts the first magnetic source sheet 414 and the surface of the first magnetic source sheet 414 are configured to have a flatness that meets the requirements; the area where the second magnetic conductive plate 423 contacts the second magnetic source sheet 424 and the surface of the second magnetic source sheet 424 are configured to have a flatness that meets the requirements. After testing, the first magnetic conductive plate 413 can adjust the magnetic field distribution of the first magnetic source sheet 414, and the second magnetic conductive plate 423 can adjust the magnetic field distribution of the second magnetic source sheet 424, so as to make the magnetic field more uniform and expand the coverage of the magnetic field.

[0094] Fig.15 Schematic diagram of the cooperation between the first magnetic conductive plate 413 and the first magnetic source sheet 414 in the magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention. The first magnetic conductive plate 413 extends outward around the plane area corresponding to the first magnetic source sheet 414 to form an extension portion 4131. The extension portion 4131 and the plane area (or plane main body) where the first magnetic conductive plate 413 and the first magnetic source sheet 414 abut against each other form a step surface. In other words, the edges of the first magnetic conductive plate 413 protrude toward one side of the first magnetic source sheet 414. The first magnetic source sheet 414 fits in the central area defined by the protruding extension portion 4131. The extension portion 4131 protrudes toward one side of the first magnetic source sheet 414, and is used to cooperate with the barrel body and / or the magnetic field connector 431 as a connecting component of the first magnetic conductive plate 413. There is a certain distance D (e.g., 1-3 mm) between the outer periphery of the first magnetic source sheet 414 and the step surface of the extension portion 4131, that is, the first magnetic source sheet 414 is only attached to the first magnetic conductive plate 413 through one side surface, and the outer periphery is not in contact with the first magnetic conductive plate 413, forming a magnetic gap. This ensures that the magnetic field of the first magnetic source sheet 414 can affect the fresh-keeping storage space 330 as evenly as possible, and will not be distorted at the edge due to the first magnetic conductive plate 413.

[0095] The height of the protrusion of the extension 4131 may be greater than the thickness of the first magnetic source sheet 414. For example, in a specific embodiment, when the thickness of the first magnetic source sheet 414 is 3 mm, the height of the protrusion of the extension 4131 may also be approximately 3 mm. That is, after the first magnetic source sheet 414 is assembled on the first magnetic conductive plate 413, the bottom surface of the first magnetic field assembly 411 is substantially flush. A certain air gap is formed between the bottom surface of the first magnetic field assembly 411 and the top surface of the inner liner relative to the first magnetic field assembly 413. By utilizing this air gap, the coldness of the refrigeration airflow can be prevented from being directly transferred to the fresh-keeping storage space 330. In other words, an air gap is formed between the first magnetic field assembly 411 and the inner liner to prevent excessive heat transfer on the top surface of the barrel.

[0096] In order to reduce the weight of the magnetic field storage container and save the occupied space, the thickness of the first magnetic conductive plate 413 is required to be as thin as possible, but considering that the first magnetic conductive plate 413 is required to achieve a uniform distribution of the magnetic field, the thickness of the first magnetic conductive plate 413 and the second magnetic conductive plate 423 can be configured to be no greater than 3 mm, that is, less than or equal to 3 mm, for example, the thickness can be 1 mm. The thickness of the first magnetic source sheet 414 and the second magnetic source sheet 424 can be no more than 8 mm, that is, less than or equal to 8 mm.

[0097] The second magnetic field component 421 is substantially the same in structure as the first magnetic field component 411, that is, the second magnetic conductive plate 423 is substantially the same in shape, structure, and parameters as the first magnetic conductive plate 413, and the second magnetic source sheet 424 is substantially the same in shape, structure, and parameters as the first magnetic source sheet 414. In some embodiments, the second magnetic field component 421 is substantially opposite to the first magnetic field component 411, and a small offset may exist therebetween, taking into account the structure and size of the opposite sides of the magnetic field preservation storage container 30. That is, the projection surfaces of the second magnetic field component 421 and the first magnetic field component 411 are not required to completely overlap. For example, in some embodiments, the bottom surface area of ​​the magnetic field preservation storage container 30 is slightly larger than the top surface area, and the size of the second magnetic field component 421 may also be slightly larger than the first magnetic field component 411.

[0098] The first magnetic field component 411 and the second magnetic field component 421 can respectively cover the corresponding side surfaces of the fresh-keeping storage space 330. In the embodiment where the first magnetic field component 411 and the second magnetic field component 421 are respectively arranged on the top surface and the bottom surface of the magnetic field fresh-keeping storage container 30, the first magnetic field component 411 can cover the top surface of the fresh-keeping storage space 330, and the second magnetic field component 421 can cover the bottom surface of the fresh-keeping storage space 330. The magnetic field directions of the first magnetic source sheet 414 and the second magnetic source sheet 424 can be set to be the same, that is, the relative magnetic poles of the first magnetic source sheet 414 and the second magnetic source sheet 424 are opposite magnetic poles, which can further ensure the uniformity of the magnetic field.

[0099] The magnetic field connector 431 can connect the first magnetic field component 411 and the second magnetic field component 421 from both sides. The magnetic field connector 431 is arranged on the left side and the right side of the magnetic field fresh-keeping storage container 30, respectively, and its top flange 4311 is connected to the first magnetic field component 411, and its bottom flange 4311 is connected to the second magnetic field component 421. The first magnetic field component 411, the second magnetic field component 421 and the magnetic field connectors 431 on both sides form an outer magnetic conductive path surrounding the magnetic field fresh-keeping storage container 30, and the fresh-keeping storage space 330 between the first magnetic field component 411 and the second magnetic field component 421 forms an internal magnetic field. The outer magnetic conductive path provides a closed path for the magnetic field lines for the internal magnetic field, so that the magnetic field can be gathered, the uniformity of the internal magnetic field can be improved, and at the same time, the magnetic field can be reduced. Release to the outside of the magnetic field fresh-keeping storage container 30 can be reduced, reducing interference with other external components (for example, avoiding magnetization of other components, etc.).

[0100] The magnetic field connector 431 is required to be able to meet the requirements of the aggregated external magnetic field. Generally speaking, the magnetic field connector 431 is connected to the central position of the first magnetic field component 411 and the second magnetic field component 421. The magnetic field connector 431 on each side can be one or more. The accompanying drawings show an embodiment in which a magnetic field connector 431 is arranged in the center of the front and rear positions of the first magnetic field component 411 and the second magnetic field component 421. Alternatively, multiple magnetic field connectors 431 can be arranged at intervals along the front and rear direction of the magnetic field preservation container.

[0101] Fig.16 : is a schematic diagram of the installation position of the magnetic field connector 431 in the magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention. The width of the magnetic field connector 431 (that is, the dimension along the front-to-back direction of the magnetic field fresh-keeping storage container 30) can be one-fourth to one-third of the dimension of the first magnetic field assembly 411 in the front-to-back direction, and its thickness can be substantially consistent with the first magnetic conductive plate 413. The upper end of the magnetic field connector 431 passes through the through hole 3183 opened in the protruding wall 381 of the inner barrel 318, extends downward from the side of the inner barrel 318, and the lower end of the magnetic field connector 431 passes through the long strip hole opened on the bottom edge of the side of the inner barrel. The main plate 4312 of the magnetic field connector 431 can be fixed to the inner barrel 318 using the main plate fixing structure 3812 (such as the matching structure of the screw screw hole), which improves the reliability and stability of the structure. The insulation layer on both sides of the barrel 310 can open corresponding grooves in the magnetic field connector 431 to accommodate the magnetic field connector 431.

[0102] Fig.17The figure is a matching structure of a magnetic field connector 431 and a first magnetic conductive plate 413 in a magnetic field fresh-keeping storage container 30 according to an embodiment of the present invention and a partial enlarged diagram thereof. When the first magnetic conductive plate 413 is connected to the magnetic field connector 431, the extension 4131 may not protrude, forming a clearance gap 4132. That is, at the position of the clearance gap 4132, the extension 4131 is flush with the main body of the central area of ​​the first magnetic conductive plate 413, or the protrusion height is less than other positions of the extension 4131. The magnetic field connector 431 forms a flange 4311 at the top facing the first magnetic conductive plate 413, and the flange 4311 is used to reliably contact the gap 4132 of the first magnetic conductive plate 413 to form a reliable magnetic connection. A flange fixing hole 4313 is provided on the flange 4311, which can be firmly connected to the first magnetic conductive plate 413 and the barrel body 310 by means of screw holes and the like. The flange 4311 of the magnetic field connector 431 is also required to have a certain gap from the side of the first magnetic source sheet 414 to form a magnetic gap. By using the above gap, after the magnetic field connector 431 is connected to the first magnetic conductive plate 413, the magnetic field connector 431 does not affect the connection between the first magnetic conductive plate 413 and the barrel 310 in the thickness direction. Similarly, the lower end of the magnetic field connector 431 can also be connected to the second magnetic conductive plate 423 using a similar connection result.

[0103] In some embodiments of the present embodiment, in order to improve the magnetic field strength, the first magnetic field component 411 and the second magnetic field component 421 may further be provided with electromagnetic coils 415 and 425, and the electromagnetic coils 415 and 425 are respectively located on the inner side of the first magnetic source sheet 414 and the second magnetic source sheet 424. The electromagnetic coils 415 and 425 may be wound into a flat ring shape by copper wire, and the number of turns of the copper wire may be set according to the magnetic field requirements and the structural dimensions. In some embodiments, the first electromagnetic coil 415 and the second electromagnetic coil 425 may be respectively located at the central position of the first magnetic source sheet 414 and the second magnetic source sheet 424, and the magnetic pole direction of the magnetic field formed after power-on is consistent with the first magnetic source sheet 414 and the second magnetic source sheet 424 that are adjacent.

[0104] The air path inside the magnetic field fresh-keeping storage container 30 is configured as follows: the airflow enters the rear end of the air supply section 341 (also referred to as the air supply section) of the internal air path of the magnetic field fresh-keeping storage container 30 defined in the top wall of the barrel body from the barrel body air supply port 316, and then the airflow flows through the air supply section 341 from back to front. At the front end of the air supply section 341, the airflow enters the top of the wind section (also referred to as the end plate wind section) of the internal wind path of the magnetic field fresh-keeping storage container 30 defined in the drawer end plate assembly 321, and then the airflow flows from top to bottom through the wind section 342. At the bottom end of the wind section 342, the airflow enters the gap between the drawer bottom plate 322 and the barrel body bottom wall 312, which serves as the cold transmission section (also referred to as the bottom wall wind section) of the internal wind path of the magnetic field fresh-keeping storage container 30, and then the airflow flows from front to back through the first cold transmission section 343. At the connection position between the rear end of the drawer bottom plate 322 and the drawer rear plate 323 (i.e., the rear end of the cold transmission section 343), the airflow enters the gap between the drawer rear plate 322 and the barrel body rear wall 313, which can be used as the barrel inner return air section 344 (also called the rear wall air path section). The middle of the barrel body rear wall 313 is provided with an inner barrel body return air port 346, and the barrel body rear wall is provided with an inter-barrel return air section 345 from the inner barrel body return air port 346 to the barrel body return air port 317. The airflow finally reaches the barrel body return air port 317 from the inner barrel body return air port 346 via the inter-barrel return air section 345.

[0105] The internal air path of the magnetic field fresh-keeping storage container 30 surrounds the entire magnetic field fresh-keeping storage container 30. Without entering the fresh-keeping storage space 330 and thus without directly contacting the stored objects, sufficient heat exchange can be achieved to evenly cool the magnetic field fresh-keeping storage container 30.

[0106] Fig.18 is a schematic diagram of a refrigerator 10 according to an embodiment of the present invention; Fig.19 yes Fig.18 The refrigerator 10 shown is a schematic diagram after the upper door 11 is hidden. The refrigerator of this embodiment generally includes a box body 12, a door body 11, and a refrigeration system (not shown in the figure). The box body 12 may define at least one storage compartment with an open front side, usually multiple, such as a refrigerated storage compartment 121, 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.18 and Fig.19 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.

[0107] The refrigerator 10 of this embodiment can be an air-cooled refrigerator. An air duct system is provided in the box body, and a fan is used to send the refrigeration air that has exchanged heat with the heat exchanger (evaporator, not shown in the figure) to the storage room through the air supply port, and then return to the air duct through the return air port to achieve refrigeration. Multiple storage rooms can be spatially divided by racks, shelves, drawers, etc. to achieve corresponding storage functions, such as chilled, frozen, dry storage, etc.

[0108] One or more magnetic field preservation storage containers 30 may be arranged in the refrigerator 10 of this embodiment. In some optional embodiments, the magnetic field preservation storage container 30 may be arranged in one or more of the above-mentioned multiple storage compartments, and through magnetic field and temperature control, long-term high-quality cold preservation of food materials such as meat and fish can be achieved. For example, the magnetic field preservation storage container 30 may be arranged in the refrigerated storage compartment 121, and in addition to the magnetic field preservation storage container 30, other drawer-type storage containers 122 may also be arranged in the refrigerated storage compartment 121, such as Fig.19 In addition to the magnetic field preservation storage container 30 , the refrigerated storage compartment 121 is also provided with an example of three other drawer-type storage containers 122 , one of which is arranged in parallel with the magnetic field preservation storage container 30 .

[0109] The refrigerator 10 of this embodiment achieves the effect of fresh-keeping storage by combining the precise temperature control of the magnetic field fresh-keeping storage container 30 with the influence of the magnetic field. In order to achieve precise temperature control, the air duct system of the refrigerator of this embodiment can provide a special fresh-keeping container air supply channel for the magnetic field fresh-keeping storage container 30 to achieve the control of the on-off and / or size of the refrigeration airflow of the magnetic field fresh-keeping storage container 30. Through actual testing of trial samples, the use of the fresh-keeping storage container 30 and the refrigerator of the scheme of this embodiment can greatly extend the fresh-keeping storage time of the stored objects. For example, for fresh meat and fish, the fresh-keeping time can be extended to 5 to 7 days, which greatly improves the user experience.

[0110] 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 magnetic field fresh-keeping storage container, comprising: The barrel body has a fresh-keeping storage space for storing stored items; A first magnetic field assembly and a second magnetic field assembly are respectively disposed on a set of opposite side walls of the barrel body and are configured to form a magnetic field in the fresh-keeping storage space; At least one magnetic field connector, the magnetic field connector includes a main plate and flanges extending from both ends of the main plate, and the main plate of the magnetic field connector is respectively arranged in a side wall of the barrel body connected to the side wall where the first magnetic field component and the second magnetic field component are located, and is connected to the first magnetic field component and the second magnetic field component through the flanges.

2. The magnetic field fresh-keeping storage container according to claim 1, wherein One or more fixing structures are provided on the barrel body for each of the magnetic field connectors, and the magnetic field connectors are fixed to the barrel body by using the fixing structures, thereby ensuring that the flanges of the magnetic field connectors are reliably connected to the first magnetic field assembly and the second magnetic field assembly.

3. The magnetic field fresh-keeping storage container according to claim 2, wherein: The barrel comprises: The inner barrel defines the fresh-keeping storage space, and The first magnetic field assembly, the second magnetic field assembly, and the magnetic field connector are respectively arranged on the outside of the inner barrel body, and the fixing structure is arranged on the inner barrel body.

4. The magnetic field fresh-keeping storage container according to claim 3, wherein: A main plate fixing hole is provided in the middle of the main plate of the magnetic field connector, and The fixing structure comprises a main body plate fixing structure, and the main body plate fixing structure is arranged at a position on the inner barrel body corresponding to the main body plate fixing hole and is connected to the main body plate fixing hole.

5. The magnetic field fresh-keeping storage container according to claim 4, wherein: The ratio of the hole diameter of the main plate fixing hole to the width direction of the main plate is set to be less than or equal to 20%, and the hole diameter of the main plate fixing hole is less than or equal to 20 mm.

6. The magnetic field fresh-keeping storage container according to claim 3, wherein The first magnetic field component is disposed above the top wall of the inner barrel body, and the second magnetic field component is disposed below the bottom wall of the inner barrel body; and There are two magnetic field connectors, and the main plates of the two magnetic field connectors are respectively arranged on the outer sides of the side walls on both sides of the inner barrel body, and the flanges are arranged at the upper and lower ends of the main plates and extend toward the sides of the first magnetic field component and the second magnetic field component.

7. The magnetic field fresh-keeping storage container according to claim 6, wherein The flange is provided with a flange fixing hole, and The fixing structure also includes a flange fixing structure, which is arranged on the top wall and the bottom wall of the inner barrel body at positions corresponding to the flange fixing holes and is connected to the flange fixing holes.

8. The magnetic field fresh-keeping storage container according to claim 3, wherein The inner barrel body extends protruding walls at the top and bottom ends of the side wall where the main plate of the magnetic field connector is located; and The fixing structure further includes a through hole, which is arranged on the protruding wall and matches the shape of the flange, and the flange extends through the through hole to the first magnetic field component or the second magnetic field component.

9. The magnetic field fresh-keeping storage container according to claim 1, wherein The first magnetic field assembly and the second magnetic field assembly respectively include a magnetic source sheet and a magnetic conductive plate, and the magnetic source sheet is attached to the central area of ​​the magnetic conductive plate, and the flanges of the magnetic field connector are respectively connected to the edges of the magnetic conductive plate.

10. The magnetic field fresh-keeping storage container according to claim 9, wherein The first magnetic field assembly and the second magnetic field assembly further include electromagnetic coils, respectively, and the electromagnetic coils are arranged on a side of the magnetic source sheet opposite to the magnetic conductive plate, and The magnetic source sheet is a permanent magnetic sheet with uniform magnetization; the effective magnetic field strength range of the magnetic field is 10-100GS, and the effective spacing range is 60-240mm.

11. A refrigerator, comprising: A magnetic field fresh-keeping storage container according to any one of claims 1 to 10.

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