Fresh-keeping storage container and refrigerator

Abstract

A fresh-keeping storage container (30) and a refrigerator (10). The fresh-keeping storage container (30) comprises a barrel body (310) in which a fresh-keeping storage space (330) for placing stored objects is provided; and a magnetic field device (410) comprising at least one magnetic field assembly (411, 421) and configured to form a magnetic field in the fresh-keeping storage space (330). The magnetic field device (410) is used to form the magnetic field in the fresh-keeping storage space (330), thereby improving the storage quality, shortening the freezing time, reducing the juice loss rate and nutrient loss of food, and prolonging the fresh-keeping cycle.

Description

Fresh-keeping storage containers and refrigerators

[0001] This application claims priority to the following three patents: 1. Chinese patent with application number 202311027595.5 and application date August 15, 2023; 2. Chinese patent with application number 202311027512.2 and application date August 15, 2023; 3. Chinese patent with application number CN202311027603.6 and application date August 15, 2023. The entire contents of the above three patent applications are hereby introduced into this application as a reference. Technical Field

[0002] The present application relates to a refrigeration and freezing storage device, and in particular to a fresh-keeping storage container and a refrigerator. Background Art

[0003] The freshness and storage performance of household refrigerators and freezers has become a key performance indicator. Fresh ingredients like meat, fish, and shrimp are prone to losing juice during storage, resulting in a poor taste and darkening of color.

[0004] The reference to any related art in the specification does not constitute an acknowledgement or suggestion that the related art forms part of the common general knowledge in any jurisdiction, or that it can reasonably be expected that the related art would be understood, regarded as relevant and / or combined with other related technologies by a person skilled in the art.

[0005] Summary of the Invention

[0006] One purpose of the present application is to provide a fresh-keeping storage container and a refrigerator that effectively improve the quality of stored materials.

[0007] To achieve the above objectives, the present application provides a fresh-keeping storage container, comprising:

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

[0009] The magnetic field device includes at least one magnetic field component and is configured to form a magnetic field in the fresh-keeping storage space.

[0010] The present application also provides a refrigerator comprising the above-mentioned fresh-keeping storage container.

[0011] The fresh-keeping storage container and refrigerator provided herein utilize a magnetic field device to generate a magnetic field within the fresh-keeping storage space. The magnetic field helps improve storage quality, for example, by shortening freezing time, reducing the loss of food juice and nutrients, lowering the number of microorganisms and bacteria, and extending the shelf life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Hereinafter, some specific embodiments of the present application will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the 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 drawings:

[0013] FIG1 is a schematic diagram of a refrigerator according to one embodiment of the present application;

[0014] FIG2 is a schematic diagram of the refrigerator shown in FIG1 with the upper door hidden;

[0015] FIG3 is a schematic diagram of an air path for supplying refrigerated air to a fresh-keeping storage container by a refrigerator according to one embodiment of the present application;

[0016] FIG4 is a schematic diagram of the relative positions of a barrel and a magnetic field device in a fresh-keeping storage container according to one embodiment of the present application;

[0017] FIG5 is a schematic diagram of a barrel in a fresh-keeping storage container according to one embodiment of the present application;

[0018] FIG6 is a schematic diagram of a magnetic field device in a fresh-keeping storage container according to one embodiment of the present application;

[0019] FIG7 is a schematic diagram of a magnetic field device in a fresh-keeping storage container according to one embodiment of the present application;

[0020] FIG8 is an exploded view of the components of the magnetic field device shown in FIG7;

[0021] FIG9 is a schematic diagram of the installation position of a magnetic field connector in a fresh-keeping storage container according to one embodiment of the present application;

[0022] FIG10 is a schematic diagram of an inner barrel of a fresh-keeping storage container according to another embodiment of the present application;

[0023] FIG11 is a schematic diagram of a magnetic field device in a fresh-keeping storage container according to another embodiment of the present application;

[0024] FIG12 is a schematic diagram of the relative positions of the inner barrel and the magnetic field device in a fresh-keeping storage container according to another embodiment of the present application;

[0025] FIG13 is a schematic diagram of an inner barrel of a fresh-keeping storage container according to another embodiment of the present application;

[0026] FIG14 is a schematic diagram of a magnetic field device in a fresh-keeping storage container according to another embodiment of the present application;

[0027] FIG15 is a schematic diagram of the relative positions of the inner barrel and the magnetic field device in a fresh-keeping storage container according to another embodiment of the present application;

[0028] FIG16 is a schematic diagram of the connection position between the magnetic field connector and the magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0029] FIG17 is a schematic diagram of a connection method between a magnetic field connector and a magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0030] FIG18 is a schematic diagram of the connection position between the magnetic field connector and the magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0031] FIG19 is a schematic diagram of the connection position between the magnetic field connector and the magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0032] FIG20 is a schematic diagram of the connection position between the magnetic field connector and the magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0033] FIG21 is a schematic diagram of a connection method between a magnetic field connector and a magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0034] FIG22 is a schematic diagram of a connection method between a magnetic field connector and a magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0035] FIG23 is a schematic diagram of a connection method between a magnetic field connector and a magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0036] FIG24 is a schematic diagram of a method for fixing a magnetic field connector and a magnetic conductive plate in a fresh-keeping storage container according to one embodiment of the present application;

[0037] FIG25 is a schematic diagram of a method for fixing a magnetic field connector and a magnetic conductive plate in a fresh-keeping storage container according to another embodiment of the present application;

[0038] FIG26 is a schematic diagram showing analysis results of the magnetic field intensity at the center point of a fresh-keeping storage container under conditions of different contact area sizes between a magnetic field connector and a magnetic conductive plate according to an embodiment of the present application;

[0039] FIG27 is a front view of a fresh-keeping storage container according to one embodiment of the present application;

[0040] FIG28 is a schematic diagram of a fresh-keeping storage container according to an embodiment of the present application from another angle;

[0041] FIG29 is a schematic diagram of a fresh-keeping storage container according to an embodiment of the present application from another angle;

[0042] FIG30 is a cross-sectional view of the fresh-keeping storage container shown in FIG27 along the AA direction;

[0043] FIG31 is a cross-sectional view taken along line BB of FIG27;

[0044] FIG32 is a schematic diagram of the top of the inner barrel below the first magnetic source sheet in the fresh-keeping storage container according to one embodiment of the present application;

[0045] FIG33 is a schematic diagram of an angle of the top of the inner barrel shown in FIG32;

[0046] FIG34 is a schematic diagram of the top of the inner barrel shown in FIG32 from another angle;

[0047] FIG35 is a schematic diagram of an air guide frame on the top wall of the inner barrel of a fresh-keeping storage container according to one embodiment of the present application;

[0048] FIG36 is a schematic diagram of a windshield strip at the wind guide frame shown in FIG35 ;

[0049] FIG37 is a partial enlarged view of point E in FIG35 , showing the matching area between the windshield strip and the wind guide frame;

[0050] FIG38 is a schematic diagram illustrating the coordination of the inner barrel and the drawer end plate assembly in a fresh-keeping storage container according to one embodiment of the present application;

[0051] FIG39 is an exploded view of the components shown in FIG38;

[0052] FIG40 is a schematic diagram of an end plate fitting of a fresh-keeping storage container according to an embodiment of the present application from one perspective;

[0053] FIG41 is a schematic diagram of an end plate fitting of a fresh-keeping storage container according to one embodiment of the present application from another perspective;

[0054] FIG42 is a schematic diagram of an annular sealing strip in a fresh-keeping storage container according to one embodiment of the present application;

[0055] FIG43 is a schematic diagram of the interior of a barrel of a fresh-keeping storage container according to one embodiment of the present application;

[0056] FIG44 is a schematic diagram of an internal air path of a fresh-keeping storage container according to one embodiment of the present application;

[0057] FIG45 is a partial enlarged view of point F in FIG44;

[0058] FIG46 is a schematic diagram of a drawer in a fresh-keeping storage container according to an embodiment of the present application from one perspective;

[0059] FIG47 is a schematic diagram of a drawer in a fresh-keeping storage container from another perspective according to one embodiment of the present application;

[0060] FIG48 is an exploded view of a drawer in a fresh-keeping storage container according to one embodiment of the present application;

[0061] FIG49 is a partially enlarged cross-sectional view of the mating position of the top of the drawer end panel assembly and the top of the front end of the barrel body in a fresh-keeping storage container according to one embodiment of the present application;

[0062] FIG50 is a schematic diagram of the cooperation between the top wall of the drawer end panel assembly and the bottom wall of the transition air duct in a fresh-keeping storage container according to one embodiment of the present application;

[0063] FIG51 is a schematic diagram of the bottom of a fresh-keeping storage container according to one embodiment of the present application;

[0064] FIG52 is a cross-sectional view of a drawer of a fresh-keeping storage container according to one embodiment of the present application;

[0065] Figure 53 is a schematic diagram of a tray in a drawer of a fresh-keeping storage container according to one embodiment of the present application. DETAILED DESCRIPTION

[0066] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present application, rather than all embodiments of the present application, and these embodiments are intended to explain the technical principles of the present application, and are not intended to limit the scope of protection of the present application. Based on the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should still fall within the scope of protection of this application. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0067] In the description of this embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. For example, except for individual explicit definitions of other directions, in this embodiment, the direction from the refrigerator body toward the door body is front, the direction relative to the door body toward the body is back, the direction toward the ground on which the refrigerator is installed is down, and the direction opposite to the ground is up.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0069] Furthermore, it should be noted that, in the description of this application, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0070] Figure 1 is a schematic diagram of a refrigerator 10 according to an embodiment of the present application; Figure 2 is a schematic diagram of the refrigerator 10 shown in Figure 1 with the upper door 11 hidden. As shown in Figures 1-2, the refrigerator of this embodiment may generally include a cabinet 12, a door 11, and a refrigeration system (not shown in the figures). At least one storage compartment with an open front side may be defined in the cabinet 12, and there are usually multiple storage compartments, such as a refrigerated storage compartment 121, a frozen storage compartment, a variable temperature storage compartment, and the like. The number and function of specific storage compartments can be configured according to pre-determined requirements. The cross-door refrigerators shown in Figures 1 and 2 are only examples, and those skilled in the art can configure the number, function, and layout of specific storage compartments according to requirements.

[0071] The refrigerator 10 of this embodiment can be an air-cooled refrigerator. Figure 3 is a schematic diagram of the air path for the refrigerator 10 according to an embodiment of the present application to supply refrigerated airflow to the fresh-keeping storage container 30. In order to illustrate the refrigeration duct assembly 210 in Figure 3, other components in the refrigerated storage compartment 121 except for the fresh-keeping storage container and the refrigeration duct assembly 210, such as the refrigeration liner, the compartment insulation layer, etc. are hidden. A refrigeration system is provided in the cabinet. In the refrigeration system, a fan is used to send the refrigerated air flow that has exchanged heat through the heat exchanger (evaporator, not shown in the figure) to the storage compartment through the air supply port, and then returns to the air duct through the return air port to achieve refrigeration. Since the cabinet, door body, and refrigeration system of this type of refrigerator are well known to those skilled in the art and easy to implement, in order not to cover up and blur the application points of this application, the cabinet, door body, and refrigeration system themselves will not be described in detail later.

[0072] The multiple storage compartments can be spatially divided using racks, shelves, drawers, and other methods to achieve corresponding storage functions, such as chilled, frozen, or dry storage. The refrigerator 10 of this embodiment can be equipped with one or more fresh-keeping storage containers 30. In some optional embodiments, the fresh-keeping storage container 30 can be located in one or more of the multiple storage compartments described above, utilizing magnetic fields and temperature control to achieve long-term, high-quality, fresh-keeping of ingredients such as meat and fish. For example, the fresh-keeping storage container 30 can be located in any one of the refrigerated storage compartment 121, the frozen storage compartment, or the variable temperature storage compartment. In another example, the fresh-keeping storage container 30 can be located in multiple of the refrigerated storage compartment 121, the frozen storage compartment, and the variable temperature storage compartment simultaneously, meaning that the fresh-keeping storage container 30 is located in multiple different storage compartments simultaneously. For another example, multiple fresh-keeping storage containers 30 can be located in a single storage compartment as needed. Figure 2 illustrates an example of a single fresh-keeping storage container 30 located in the refrigerated storage compartment 121. The fresh-keeping storage container 30 may be a drawer-type storage container. In addition to the fresh-keeping storage container 30, other drawer-type storage containers 122 may also be provided in the refrigerated storage compartment 121. For example, FIG2 shows an example of a fresh-keeping storage container 30 and three other drawer-type storage containers 122 provided in the refrigerated storage compartment 121, one of which is arranged horizontally side by side with the fresh-keeping storage container 30.

[0073] Figure 4 is a schematic diagram of the relative positions of the barrel body 310 and the magnetic field device 410 in the fresh-keeping storage container 30 according to an embodiment of the present application. Figure 5 is a schematic diagram of the barrel body 310 in the fresh-keeping storage container 30 according to an embodiment of the present application. Figure 6 is a schematic diagram of the magnetic field device 410 in the fresh-keeping storage container 30 according to an embodiment of the present application.

[0074] The fresh-keeping storage container 30 of this embodiment generally includes a barrel 310 and a magnetic field device 410. The barrel 310 includes a fresh-keeping storage space 330 for storing stored items. The barrel 310 may be rectangular. In some embodiments, the barrel 310 may have a forward opening and may include a drawer that can be pulled out from the forward opening to hold stored items. The barrel 310 may include a top wall 311, a bottom wall 312, a rear wall 313, a left side wall 314, and a right side wall 315.

[0075] A necessary condition for the fresh-keeping storage container 30 to achieve long-term fresh-keeping storage is the application of a preservation magnetic field within the fresh-keeping storage space 330. The magnetic field device 410 includes at least one magnetic field component and is configured to form a magnetic field within the fresh-keeping storage space 330. After in-depth research on the preservation effect, the magnetic field parameters of the fresh-keeping storage container 30 of this embodiment are preferably configured to have an effective magnetic field strength range of 10-100 GS (1-10 mT). This can be further set to 20-80 GS, and even further set to 40 GS-60 GS, such as 10 GS, 20 GS, 40 GS, 60 GS, 80 GS, 100 GS, etc. The effective magnetic field spacing range is 60-240 mm, meaning that the magnetic field can meet the above strength requirements within a distance range of 60 mm to 240 mm from the magnetic source component.

[0076] Figure 7 is a schematic diagram of a magnetic field device 410 in a fresh-keeping storage container 30 according to one embodiment of the present application, and Figure 8 is an exploded view of the components of the magnetic field device 410 shown in Figure 7 . The magnetic field device 410 may include a first magnetic field assembly 411 and a second magnetic field assembly 421. The first magnetic field assembly 411 and the second magnetic field assembly 421 are arranged relative to each other and may be respectively disposed in opposite sidewalls of the barrel 310 of the fresh-keeping storage container 30, for example, in the barrel top wall 311 and the barrel bottom wall 312, or in the barrel left wall 314 and the barrel right wall 315, respectively. In embodiments where the fresh-keeping storage container 30 utilizes a drawer-style structure, the distance between the barrel top wall 311 and the barrel bottom wall 312 is smaller and the area is larger, and the first magnetic field assembly 411 and the second magnetic field assembly 421 are preferably disposed in the barrel top wall 311 and the barrel bottom wall 312.

[0077] In some embodiments, the first magnetic field assembly 411 and the second magnetic field assembly 421 can be disposed in the middle interlayer 331 of the barrel 310. In other embodiments, the first magnetic field assembly 411 and the second magnetic field assembly 421 can also be disposed outside the inner barrel of the barrel 310.

[0078] The first magnetic field assembly 411 and the second magnetic field assembly 421 can have substantially the same structure. For example, the first magnetic field assembly 411 can include a first magnetic source sheet 414 and a first magnetic conductive plate 413. In some embodiments, the first magnetic field assembly 411 can further include a first electromagnetic coil 415. Correspondingly, the second magnetic field assembly 421 can include a second magnetic source sheet 424 and a second magnetic conductive plate 423. In some embodiments, the second magnetic field assembly 421 can further include a second electromagnetic coil 425. 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.

[0079] The first magnetic source sheet 414 and the second magnetic source sheet 424 can be uniformly magnetized permanent magnet sheets. 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 a relatively flexible permanent magnetic material. For example, a flexible rubber magnet sheet made by calendering a composite of bonded ferrite powder and synthetic rubber can be used. Alternatively, in some embodiments, the first magnetic source sheet 414 and the second magnetic source sheet 424 can be formed using electromagnetic coils.

[0080] The magnetization intensity of the first magnetic source sheet 414 and the second magnetic source sheet 424 is required to meet the above-mentioned magnetic field forming an effective magnetic field intensity range of 10-100 GS (1-10 mT) and an effective magnetic field spacing range of 60-240 mm in the fresh-keeping storage space 330. 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. The magnetic fields of the first magnetic source sheet 414 and the second magnetic source sheet 424 can be set to be in the same direction, that is, the opposite sides of the first magnetic source sheet 414 and the second magnetic source sheet 424 are opposite magnetic poles, for example, the first magnetic source sheet 414 and the second magnetic source sheet 424 are both N-pole on the upper surface and S-pole on the lower surface.

[0081] The first magnetic conductive plate 413 and the second magnetic conductive plate 423 are made of a material 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 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, for example, the smaller the tolerance threshold of the flatness, the better, for example, less than 1 mm, or less than 0.1 mm, or less than 0.05 mm. By limiting the flatness, after the first magnetic conductive plate 413 and the first magnetic source sheet 414 are matched, the two can fit tightly to achieve zero-gap fit, thereby improving the uniformity of the magnetic field.

[0082] Similarly, 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, for example, the tolerance threshold of the flatness is as small as possible, for example, less than 1 mm, or less than 0.1 mm, or less than 0.05 mm. By limiting the flatness, after the second magnetic conductive plate 423 and the second magnetic source sheet 424 are matched, the two can fit tightly to achieve zero gap matching, thereby improving the uniformity of the magnetic field. 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, thereby making the magnetic field more uniform and expanding the coverage of the magnetic field.

[0083] When the flatness tolerance is large, especially when it is greater than or equal to 1mm, it will cause local hollowing of the magnetic plate and the magnetic source sheet. Local hollowing causes a gap to appear between the magnetic plate and the magnetic source sheet, and the gap will produce magnetic resistance. Magnetic resistance further leads to uneven magnetic field distribution and loss of magnetic field strength. The solution of this embodiment, by limiting the flatness tolerance threshold to 1mm, can avoid the occurrence of local hollowing, thereby avoiding the increase of magnetic resistance in local areas, effectively reducing the loss of magnetic field strength, and ensuring uniform distribution of the magnetic field. Furthermore, in some embodiments, limiting the flatness tolerance threshold to 0.1mm or even 0.05mm can achieve better technical effects in this regard.

[0084] In some embodiments, the surfaces of the first magnetic conductive plate 413 and the second magnetic conductive plate 423 can be electroplated to form an anti-corrosion layer to meet the requirements of long-term use inside the refrigerator. The anti-corrosion layer is required to have a uniform thickness and not affect the coordination between the first magnetic conductive plate 413 and the first magnetic source plate 414. The first magnetic conductive plate 413 and the second magnetic conductive plate 423 can also be treated with a UV coating for anti-corrosion.

[0085] In some embodiments, a magnetic adhesive can be coated between the first magnetic source sheet 414 and the first magnetic conductive plate 413, and between the second magnetic source sheet 424 and the second magnetic conductive plate 423 to achieve better adhesion between the two. The magnetic adhesive can be silicone magnetic adhesive or epoxy magnetic adhesive.

[0086] The magnetic field device 410 may also be provided with at least one magnetic field connector 431. The magnetic field connector 431 connects the first magnetic field assembly 411 and the second magnetic field assembly 421 on both sides. The magnetic field connector 431 may be made of the same material as the first magnetic conductive plate 413 and the second magnetic conductive plate 423. In an embodiment where the first magnetic field assembly 411 and the second magnetic field assembly 421 are respectively disposed on the top and bottom surfaces of the fresh-keeping storage container 30, the magnetic field connector 431 may be disposed on the left and right sides of the fresh-keeping storage container 30, with the top connected to the first magnetic field assembly 411 and the bottom connected to the second magnetic field assembly 421. The first magnetic field assembly 411, the second magnetic field assembly 421, and the magnetic field connectors 431 on both sides form an outer magnetic conductive path surrounding the fresh-keeping storage container 30, while the fresh-keeping storage space 330 between the first magnetic field assembly 411 and the second magnetic field assembly 421 forms an internal magnetic field. The outer magnetic conductive path provides a closed path for the magnetic lines of force of the internal magnetic field, thereby concentrating the magnetic field and improving the uniformity of the internal magnetic field. At the same time, it can reduce the release of the magnetic field to the outside of the fresh-keeping storage container 30 and reduce interference with other external components (for example, avoiding magnetization of other components, etc.).

[0087] The magnetic field connector 431 is required to meet the requirements of the aggregated external magnetic field. Generally speaking, the magnetic field connector 431 is connected to the center of the first magnetic field assembly 411 and the second magnetic field assembly 421. There can be one or more magnetic field connectors 431 on each side. Figure 8 shows an embodiment in which a single magnetic field connector 431 is provided in the center of the front-to-back position of the first magnetic field assembly 411 and the second magnetic field assembly 421. Alternatively, multiple magnetic field connectors 431 can be provided at intervals along the front-to-back direction of the magnetic field preservation container 30.

[0088] In other embodiments, the magnetic field connector 431 may also be disposed at the rear of the magnetic field preservation container 30. Those skilled in the art may set the number and position of the magnetic field connector 431 as needed.

[0089] The thickness of the thinnest section of each magnetic field connector 431 can be set to be less than or equal to 4 mm and greater than or equal to 0.5 mm. For example, it can be set to 4 mm, 3 mm, 2 mm, 1 mm, or 0.5 mm. Furthermore, the thickness of the magnetic field connector 431 can range from 0.8 mm to 3 mm, such as 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 2 mm, or 3 mm. In some embodiments, each magnetic field connector 431 can have a uniform thickness throughout.

[0090] The width of the narrowest section of each magnetic field connector 431 is denoted as W1'. Width W1' can be set to be greater than or equal to 5% of the side length W2 of the first magnetic conductive plate 413 or the second first magnetic conductive plate 423 to which it is connected, and less than or equal to 75% of W2. In other words, the width of the magnetic field connector 431 must be greater than or equal to 5% of the side length of the first magnetic conductive plate 413 or the second first magnetic conductive plate 423, and less than or equal to 75% of the side length of the magnetic field assembly. For example, the width can be set to 5%, 10%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 75%, etc. Furthermore, in some embodiments, the width W1' of the magnetic field connector 431 can be approximately 20% to 30% of the side length of the first magnetic conductive plate 413 or the second first magnetic conductive plate 423. The magnetic field connector 431 can have a uniform width throughout.

[0091] The thickness and width of the magnetic field connector 431 are coordinated to achieve reliable magnetic connectivity of the external magnetic circuit of the fresh-keeping storage space.

[0092] Figure 9 is a schematic diagram illustrating the installation position of a magnetic field connector 431 in a fresh-keeping storage container 30 according to one embodiment of the present application. The width of the magnetic field connector 431 (i.e., its dimension along the front-to-back direction of the fresh-keeping storage container 30) can be one-quarter to one-third the front-to-back dimension of the first magnetic field assembly 411, and its thickness can be substantially the same as that of the first magnetic conductive plate 413. The upper end of the magnetic field connector 431 extends through an elongated hole 3183 (shown in Figure 33) defined in the top side of the inner barrel 318, extending downward from the side of the inner barrel 318. The lower end of the magnetic field connector 431 extends through an elongated hole defined in the bottom side of the inner barrel 318. The middle portion of the magnetic field connector 431 can be secured to the barrel using connectors 4313 (e.g., screw holes), improving the structural reliability and stability. The insulation layers on both sides of the barrel 310 can include corresponding grooves for the magnetic field connector 431 to accommodate the magnetic field connector 431. That is to say, the left side wall 314 of the barrel body and the right side wall 315 of the barrel body respectively form a sandwich structure, and the thermal insulation layer and the magnetic field connector 431 are arranged in the sandwich.

[0093] Each magnetic field connector 431 includes a main plate 4312 and flanges 4311 extending from both ends of the main plate 4312. The main plates 4312 of the magnetic field connector 431 are respectively disposed in a side wall of the barrel 310 that connects 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.

[0094] For example, if the first magnetic field assembly 411 and the second magnetic field assembly 421 can be respectively disposed in the barrel top wall 311 and the barrel bottom wall 312, the main plate 4312 of the magnetic field connector 431 can be disposed on the barrel left side wall 314, the barrel right side wall 315, and the barrel rear wall 313; and the flange 4311 is disposed 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 disposed on the barrel left side wall 314 and the barrel right side wall 315, forming an annular external magnetic circuit.

[0095] For another example, if the first magnetic field assembly 411 and the second magnetic field assembly 421 can be respectively disposed on the barrel's left side wall 314 and the barrel's right side wall 315, the main plate 4312 of the magnetic field connector 431 can be disposed on the barrel's top wall 311, the barrel's bottom wall 312, or the barrel's rear wall; and the flange 4311 can be disposed on the left or 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 disposed on the barrel's left side wall 314 and the barrel's right side wall 315, forming an annular external magnetic circuit.

[0096] The flange 4311 of the magnetic field connector 431 is connected to the edges of the first magnetic conductive plate 413 and the second magnetic conductive plate 423, respectively. The connection of the magnetic field connector 431 to the first magnetic field assembly 411 and the second magnetic field assembly 421 via the flange 4311 allows for a simpler assembly. This connection method also allows the magnetic field connector 431 to be more reliably connected to the first magnetic field assembly 411 and the second magnetic field assembly 421, resulting in a smoother magnetic circuit. To avoid affecting the distribution of the magnetic field, the ends of the flange 4311 of the magnetic field connector 431 are required to have a certain gap from the edges of the first magnetic source sheet 414 and the second magnetic source sheet 424.

[0097] 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 using the fixing structure, 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.

[0098] In the related 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, a first magnetic field component 411 or a second magnetic field component 421 with a larger clamping area such as a claw is generally used. However, during the research and development process, the applicant discovered 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 fresh-keeping 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 fresh-keeping storage effect.

[0099] 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 during the alternating process of refrigeration and storage, the connection part may also be disconnected due to force.

[0100] Based on the results of the above in-depth research, the applicant has avoided the above-mentioned problems by setting 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 can ensure the long-term operating stability of the magnetic field component in the fresh-keeping storage container 30, reduce the external force on the magnetic field connector 431, and thus ensure that the magnetic field connector 431 can reliably connect the first magnetic field component 411 and the second magnetic field component 421.

[0101] The barrel 310 may include an inner barrel 318, which defines a fresh-keeping storage space. The barrel 310 may further include an outer barrel shell 3101 outside the inner barrel 318, with the outer barrel shell 3101 serving as the outermost layer of the fresh-keeping storage container 30. In some embodiments, the outer barrel shell 3101 may not be provided on part of the sidewall of the inner barrel 318, and other insulation components, injection-molded parts, or adjacent components within the refrigerator may serve as the outermost layer of the fresh-keeping storage container 30.

[0102] The inner barrel 318 can be formed by injection molding, and the interior is used to place drawers or directly place stored items. In some embodiments, the inner barrel 318 can be a single piece or formed by splicing multiple inner liner components through snap-fitting or other connection methods. For example, the inner barrel 318 can be split into three or four inner liner components according to the convenience of assembly requirements.

[0103] There is an interlayer space 331 between the inner barrel 318 and the barrel outer shell 3101, which can be used to form an air duct, a heat insulation layer, and a space for arranging the above-mentioned magnetic field device 410. Alternatively, the magnetic field connector 431 can also be set on the outside of the inner barrel 318.

[0104] The first magnetic field assembly 411, the second magnetic field assembly 421, and the magnetic field connector 431 can be respectively disposed on the outside of the inner barrel 318, between the outer barrel shell 3101 and the inner barrel 318, and the fixing structure is disposed on the inner barrel 318. The first magnetic field assembly 411, the second magnetic field assembly 421, and the magnetic field connector 431 are fixed to the inner barrel 318, which can bring the magnetic source component closer to the stored objects, thereby improving the efficiency of the magnetic field application. Alternatively, the magnetic field connector 431 can also be disposed on the outside of the inner barrel 318.

[0105] In the structure shown in Figures 4-6, the first magnetic field assembly 411 is disposed above the top wall of the inner barrel 318, and the second magnetic field assembly 421 is disposed below the bottom wall of the inner barrel 318. Furthermore, the main plates 4312 of the magnetic field connector 431 are disposed on the outside of the side walls on both sides of the inner barrel 318, and the flanges 4311 are disposed at the upper and lower ends of the main plates 4312 and extend toward the sides of the first magnetic field assembly 411 and the second magnetic field assembly 421. Alternatively, there may be three or more magnetic field connectors 431, and their main plates 4312 may be disposed on the outside of the side walls, rear wall, etc. on both sides of the inner barrel 318.

[0106] One fixing structure may include: protruding walls 381 extending from the top and bottom ends of the sidewalls of the inner barrel 318, where the main plate 4312 of the magnetic field connector 431 is located; and the fixing structure also includes holes provided in the protruding walls 381 and adapted to the shape of the flange 4311. The flange 4311 extends through the holes to the first magnetic field assembly 411 or the second magnetic field assembly 421. In other words, the inner barrel 318 secures the position of the magnetic field connector 431 through the holes formed in the protruding walls 381.

[0107] Figure 10 is a schematic diagram of an inner barrel 318 of a fresh-keeping storage container 30 according to another embodiment of the present application. Figure 11 is a schematic diagram of a magnetic field device 410 of a fresh-keeping storage container 30 according to another embodiment of the present application. Figure 12 is a schematic diagram of the relative positions of the inner barrel 318 and the magnetic field device 410 of a fresh-keeping storage container 30 according to another embodiment of the present application. To facilitate illustration of the fixed structure, the outer barrel shell is omitted in Figures 10-12.

[0108] One fixing structure may include a flange fixing hole 4313 defined in the flange 4311, and further comprising a flange fixing structure 3811 disposed on the top and bottom walls of the inner barrel 318 at positions corresponding to the flange fixing hole 4313 and connected to the flange fixing hole 4313. By securing the flange 4311, the flange fixing structure 3811 can ensure the structural reliability of the fixed position of the flange 4311 with the first magnetic field assembly 411 and the second magnetic field assembly 421. The flange fixing structure 3811 can be secured to the flange fixing hole 4313 using bolts, rivets, or the like.

[0109] Figure 13 is a schematic diagram of the inner barrel 318 in the fresh-keeping storage container of another embodiment of the present application, Figure 14 is a schematic diagram of the magnetic field device 410 in the fresh-keeping storage container of another embodiment of the present application; Figure 15 is a schematic diagram of the relative positions of the inner barrel 318 and the magnetic field device 410 in the fresh-keeping storage container 30 of another embodiment of the present application.

[0110] One fixing structure may include a main plate fixing hole 4314 defined in the middle of the main plate 4312 of the magnetic field connector 431. The fixing structure includes a main plate fixing structure 3812 disposed on the inner barrel at a position corresponding to and connected to the main plate fixing hole 4314. In this fixing method, the main plate fixing structure 3812 can reliably secure the magnetic field connector 431 to the sidewall of the inner barrel 318. The main plate fixing structure 3812 may be a protrusion disposed on the inner barrel 318, or a connecting member such as a screw or rivet.

[0111] In the field of magnetic fields, 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 applicant has 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 20 mm, and can be further set to be less than or equal to 10 mm, for example, 10 mm, 8 mm, and 6 mm 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.

[0112] Each magnetic field connector 431 can be arranged in a direction perpendicular to the first magnetic conductive plate 413 and the second magnetic conductive plate 423. In other words, 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 can 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.

[0113] Two ends of the magnetic field connector 431 are connected to the first magnetic conductive plate 413 and the second magnetic conductive plate 423 respectively. The corresponding sides of the first magnetic field assembly 411 and the second magnetic field assembly 421 are the corresponding sides of the first magnetic conductive plate 413 and the second magnetic conductive plate 423.

[0114] 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 flange extension direction ranges from 1 to 10 mm, for example, it can be 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.

[0115] As shown in Figures 4-6, the first magnetic conductive plate 413 forms extensions 4131 on both sides of its planar area; the second magnetic conductive plate 423 forms extensions 4231 on both sides of its planar area. This means that the first magnetic conductive plate 413 and the second magnetic conductive plate 423 are slightly larger than the first magnetic source plate 414 and the second magnetic source plate 424, at least in the lateral direction. In some embodiments, the first magnetic conductive plate 413 forms extensions 4131 on all four sides of its planar area, and the second magnetic conductive plate 423 forms extensions 4231 on all four sides of its planar area. This means that the first magnetic conductive plate 413 and the second magnetic conductive plate 423 are slightly larger than the first magnetic source plate 414 and the second magnetic source plate 424, as a whole. The extension parts 4131, 4231 are mainly used to achieve structural coordination with the magnetic field connector 431 and the barrel body 310. In order to make the areas of the first magnetic source piece 414 and the second magnetic source piece 424 as large as possible, the sizes of the extension parts 4131, 4231 are generally set to be smaller, for example, they can extend 3-20mm, such as 3mm, 5mm, 10mm, 20mm, and in particular can be set to 10mm.

[0116] In one embodiment, the dimensions of the first magnetic source sheet 414 and the second magnetic source sheet 424 may be approximately 400 mm in length, 330 mm in width, and 3 mm in thickness. The dimensions of the first magnetic conductive plate 413 and the second magnetic conductive plate 423 may be approximately 1 mm in thickness, with the extension 4131 extending approximately 10 mm in length. The dimensions of the connector 431 may be approximately 1 mm in thickness, 100 mm in width, and the flange 4311 extending approximately 16 mm in length. The overlap between the flange 4311 of the connector 431 and the extension 4131 of the magnetic conductive plate is approximately 6 mm.

[0117] In order to ensure that the magnetic source sheet provides a sufficient magnetic field, a magnetic conductive plate is used to achieve uniform distribution of the magnetic field. The area of ​​the area where the magnetic conductive plate and the magnetic source sheet are bonded is greater than or equal to 40% of the projected area of ​​the magnetic conductive plate on the plane where the magnetic source sheet is located. In other words, the ratio of the projected area of ​​the magnetic source sheet and the magnetic conductive plate on the plane where the planar area is located is required to be greater than 40%. In particular, the area of ​​the area where the magnetic conductive plate and the magnetic source sheet are bonded is greater than or equal to 90% of the projected area of ​​the magnetic conductive plate on the plane where the magnetic source sheet is located. In other words, the ratio of the projected area of ​​the magnetic source sheet and the magnetic conductive plate on the plane where the planar area is located is required to be greater than 90%. That is, by limiting the size of the extension parts 4131, 4231, the magnetic field requirements are met.

[0118] The magnetic field device 410 may further include at least one magnetic field connector 431. Each magnetic field connector 431 is disposed on a side wall connected to the side wall where the first magnetic field assembly 411 and the second magnetic field assembly 421 are located, and is magnetically connected to the first magnetic field assembly 411 and the second magnetic field assembly 421. The magnetic field connector 431 may be made of the same material as the first magnetic conductive plate 413 and the second magnetic conductive plate 423. There may be two or more magnetic field connectors 431. For example, the magnetic field connectors 431 may be connected to the first magnetic field assembly 411 and the second magnetic field assembly 421 from one or more directions around the first magnetic field assembly 411 and the second magnetic field assembly 421.

[0119] The magnetic field connector 431 can be disposed within the interlayer of the sidewall or on the outside of the inner barrel 318. For example, if the first magnetic field assembly 411 and the second magnetic field assembly 421 are disposed in the barrel top wall 311 and the barrel bottom wall 312, respectively, the magnetic field connector 431 can be disposed on the barrel left side wall 314 or the barrel right side wall 315. Alternatively, the magnetic field connector 431 can be disposed on any one or more of the barrel left side wall 314, the barrel right side wall 315, the barrel rear wall, or the barrel front wall (if the barrel 310 has a sidewall on the front side). One or more magnetic field connectors 431 can be disposed on a single sidewall.

[0120] 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 magnetic field connector can be arranged on the top wall 311 and the bottom wall 312 of the barrel body; or the magnetic field connector 431 can be arranged on the top wall 311, the bottom wall 312, the rear wall and the front wall of the barrel body (when the barrel body 310 has a side wall on the front side). One or more magnetic field connectors 431 can be arranged on one side wall. In other words, the fresh-keeping storage container 30 can be provided with multiple magnetic field connectors 431 on both sides, and the magnetic field connectors 431 on each side are arranged at intervals to provide multiple magnetic connection paths for the first magnetic field assembly 411 and the second magnetic field assembly 421.

[0121] The flanges 4311 of the magnetic field connector 431 are connected to the extensions 4131 and 4231 of the first and second magnetic conductive plates 413 and 423, respectively. The contact area (i.e., the flange 4311) between each magnetic field connector 431 and the extensions 4131 and 4231 is dimensioned to be greater than or equal to 1 mm and less than or equal to 10 mm along the extension direction of the magnetic field connector 431. That is, when the magnetic field connector 431 is disposed on both sides of the barrel 310, the lateral distance between the contact areas between the magnetic field connector 431 and the extensions 4131 and 4231 is greater than or equal to 1 mm and less than or equal to 10 mm. This ensures that the magnetic field connector 431 provides a reliable magnetic connection path for the first magnetic field assembly 411 and the second magnetic field assembly 421.

[0122] In some embodiments, the magnetic field connector 431 can 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 overall. Furthermore, the ratio of the width of each magnetic field connector 431 to the length of the corresponding side of the first magnetic field assembly 411 or the second magnetic field assembly 421 is set to be greater than or equal to 1% and less than or equal to 50%. This width must be greater than or equal to 1% of the length of the magnetic field assembly side and less than or equal to 50% of the length of the magnetic field assembly side. For example, this ratio can be set to 1%, 5%, 10%, 20%, 30%, 40%, or 50%. Furthermore, the width can be set to be greater than or equal to 5% of the length of the side of the first magnetic field assembly 411 or the second magnetic field assembly 421 to which it is connected and less than or equal to 30%. In other words, the width of the magnetic field connector 431 must be greater than or equal to 5% of the length of the magnetic field assembly side and less than or equal to 30% of the length of the magnetic field assembly side. For example, it can be set to 5%, 10%, 15%, 20%, 25%, 30%, etc.

[0123] FIG. 16 is a schematic diagram illustrating the coordination between the first magnetic conductive plate 413 and the first magnetic source plate 414 in the fresh-keeping storage container 30 according to one embodiment of the present application.

[0124] The first magnetic conductive plate 413 extends outward around the planar area corresponding to the first magnetic source plate 414, forming an extension 4131. The extension 4131 forms a stepped surface where it abuts the planar area (or main planar portion) of the first magnetic source plate 414. In other words, at least portions of the periphery of the first magnetic conductive plate 413 (i.e., the extension) protrude from the planar area toward the first magnetic source plate 414. The first magnetic source plate 414 fits within the planar area defined by the protruding extension 4131. The extension 4131 protrudes toward the first magnetic source plate 414, mating with the barrel and / or magnetic field connector 431 to serve as a connecting component to the first magnetic conductive plate 413. A certain distance D (e.g., 1-3 mm) exists between the outer periphery of the first magnetic source plate 414 and the stepped surface of the extension 4131. This means that the first magnetic source plate 414 abuts the first magnetic conductive plate 413 only on one side, while the outer periphery does not contact the first magnetic conductive plate 413, forming a magnetic gap. This ensures that the magnetic field of the first magnetic source piece 414 can affect the fresh-keeping storage space 330 as evenly as possible without being distorted at the edge by the first magnetic conductive plate 413.

[0125] The height of the protrusion of the extension portion 4131 can 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 portion 4131 can also be about 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 component 411 is basically flush. A certain air gap is formed between the bottom surface of the first magnetic field component 411 and the top surface of the inner liner relative to it. 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 component 411 and the inner liner to prevent excessive heat transfer on the top surface of the barrel body.

[0126] To reduce the weight of the magnetic field storage container and save space, the thickness of the first magnetic conductive plate 413 is required to be as thin as possible. However, considering the requirement that the first magnetic conductive plate 413 can achieve a uniform magnetic field distribution, 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, for example, magnetic source sheets with a thickness of 3 mm, 4 mm, or 5 mm can be used.

[0127] The second magnetic field assembly 421 is substantially identical in structure to the first magnetic field assembly 411. Specifically, the second magnetic conductive plate 423 has substantially the same shape, structure, and parameters as the first magnetic conductive plate 413, and the second magnetic source plate 424 has substantially the same shape, structure, and parameters as the first magnetic source plate 414. In some embodiments, the second magnetic field assembly 421 is substantially opposite the first magnetic field assembly 411, though a slight offset may be present to account for the structure and dimensions of the opposing sides of the fresh-keeping storage container 30. In other words, the projected surfaces of the second magnetic field assembly 421 and the first magnetic field assembly 411 do not need to completely overlap. For example, in some embodiments, where the bottom surface of the fresh-keeping storage container 30 is slightly larger than the top surface, the second magnetic field assembly 421 may also be slightly larger than the first magnetic field assembly 411.

[0128] The first magnetic field assembly 411 and the second magnetic field assembly 421 can respectively cover corresponding sides of the fresh-keeping storage space 330. In an embodiment where the first magnetic field assembly 411 and the second magnetic field assembly 421 are respectively disposed on the top and bottom surfaces of the fresh-keeping storage container 30, the first magnetic field assembly 411 can cover the top surface of the fresh-keeping storage space 330, while the second magnetic field assembly 421 can cover the bottom surface of the fresh-keeping storage space 330. The magnetic field directions of the first magnetic source piece 414 and the second magnetic source piece 424 can be set to be the same, that is, the opposing magnetic poles of the first magnetic source piece 414 and the second magnetic source piece 424 are opposite magnetic poles, which can further ensure the uniformity of the magnetic field.

[0129] The magnetic field connector 431 can connect the first magnetic field assembly 411 and the second magnetic field assembly 421 from both sides. The magnetic field connector 431 is respectively arranged on the left and right sides of the fresh-keeping storage container 30. Its top flange 4311 is connected to the first magnetic field assembly 411, and its bottom flange 4311 is connected to the second magnetic field assembly 421. The first magnetic field assembly 411, the second magnetic field assembly 421, and the magnetic field connectors 431 on both sides form an outer magnetic conductive path surrounding the fresh-keeping storage container 30, while the fresh-keeping storage space 330 between the first magnetic field assembly 411 and the second magnetic field assembly 421 forms an internal magnetic field. The outer magnetic conductive path provides a closed path for the magnetic lines of force of the internal magnetic field, thereby concentrating the magnetic field and improving the uniformity of the internal magnetic field. At the same time, it can reduce the release of the magnetic field to the outside of the fresh-keeping storage container 30, reducing interference with other external components (for example, avoiding magnetization of other components).

[0130] The magnetic field connector 431 is required to meet the requirements of the aggregated external magnetic field. Generally speaking, the magnetic field connector 431 is connected to the center of the first magnetic field assembly 411 and the second magnetic field assembly 421. There can be one or more magnetic field connectors 431 on each side. The accompanying drawings illustrate an embodiment in which a single magnetic field connector 431 is positioned centrally between the first and second magnetic field assemblies 411, 421. Alternatively, multiple magnetic field connectors 431 can be spaced apart along the front-to-back direction of the magnetic field preservation container.

[0131] Figure 17 illustrates the mating structure of the magnetic field connector 431 and the first magnetic conductive plate 413 in a fresh-keeping storage container 30 according to one embodiment of the present application, along with a partially enlarged view. When the first magnetic conductive plate 413 is connected to the magnetic field connector 431, the extension 4131 may not protrude, forming a clearance notch 4132. Specifically, at the location of the clearance notch 4132, the extension 4131 is flush with the planar main portion of the first magnetic conductive plate 413, or its protrusion is less than that of the extension 4131 at other locations. The magnetic field connector 431 has a flange 4311 at its top that faces the first magnetic conductive plate 413. This flange 4311 reliably contacts the notch 4132 in the first magnetic conductive plate 413, forming a secure magnetic connection. The flange 4311 includes flange fixing holes 4313, which allow for secure connection to the first magnetic conductive plate 413 and the barrel 310 via screws or other means. The flange 4311 of the magnetic field connector 431 also requires a certain gap from the side of the first magnetic source plate 414 to form a magnetic gap. This gap ensures that, after the magnetic field connector 431 is connected to the first magnetic conductive plate 413, it 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 method.

[0132] In some embodiments of this embodiment, in order to increase the magnetic field strength, the first magnetic field assembly 411 and the second magnetic field assembly 421 may further include electromagnetic coils 415 and 425, which are located on the inner sides of the first magnetic source sheet 414 and the second magnetic source sheet 424, respectively. The electromagnetic coils 415 and 425 can be formed into a flat loop shape by winding copper wire, and the number of turns of the copper wire can 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 can be located in the center of the first magnetic source sheet 414 and the second magnetic source sheet 424, respectively, and the magnetic pole direction of the magnetic field formed after power is applied is consistent with the first magnetic source sheet 414 and the second magnetic source sheet 424 that are adjacent to each other.

[0133] Figure 18 is a schematic diagram of the connection position of the magnetic field connector 431 and the magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. The magnetic field connector 431 can also be connected to the front or rear ends of the magnetic conductive plates on both sides. Figure 19 is a schematic diagram of the connection position of the magnetic field connector 431 and the magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. The magnetic field connector 431 can also be connected to the front or rear ends of the magnetic conductive plates 413 and 423 on both sides, for example, at a position one-quarter of the way between them. This may cause some instability in the magnetic field, but it can provide structural relief for the barrel 310 when necessary. In some embodiments, the magnetic field connectors 431 on both sides can also be staggered in the front-to-back direction, for example, the left magnetic field connector 431 is connected to the front end of the magnetic conductive plates 413, 423, and the right magnetic field connector 431 is connected to the rear end of the magnetic conductive plates 413, 423; for another example, the left magnetic field connector 431 is connected to a quarter of the magnetic conductive plates 413, 423, and the right magnetic field connector 431 is connected to a three-quarter position of the magnetic conductive plates 413, 423. Those skilled in the art can select the position of the magnetic field connector 431 according to structural requirements. In general, the magnetic field connector 431 is set in the middle of the barrel body 310 and connected to the middle of the magnetic conductive plates 413, 423.

[0134] Figure 20 is a schematic diagram illustrating the connection locations of a magnetic field connector 431 and a magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. Magnetic field connectors 431 are provided on the left, right, and rear sides of the first and second magnetic field assemblies 411, 421, respectively. This means that magnetic field connectors 431 provide magnetic connection between the first and second magnetic field assemblies 411, 421 on three sides. Magnetic field connectors 431 can be located in the middle of each side. Based on this, multiple magnetic field connectors 431 can be spaced apart on each side.

[0135] When magnetic field connectors 431 are respectively provided on the left side, right side and rear side of the first magnetic field component 411 and the second magnetic field component 421, the magnetic field connectors 431 are not limited to being connected to the middle of the corresponding side edges, but can also be provided at a connection position deviating from the middle and close to one of the sides.

[0136] FIG21 is a schematic diagram illustrating the connection between a magnetic field connector 431 and a magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. The flange 4311 of the magnetic field connector 431 contacts the extension 4131 with its side facing the interior of the fresh-keeping storage space 330, while the flange 4311 contacts the side facing away from the interior of the fresh-keeping storage space 330. For example, the first magnetic source sheet 414 can be attached to the lower surface of the first magnetic conductive plate 413, with the top flange 4311 of the magnetic field connector 431 contacting the upper surface of the extension 4131 of the first magnetic conductive plate 413 with its lower surface; and the second magnetic source sheet 424 can be attached to the upper surface of the second magnetic conductive plate 423, with the bottom flange 4311 of the magnetic field connector 431 contacting the lower surface of the extension 4231 of the second magnetic conductive plate 423 with its upper surface.

[0137] Figure 22 is a schematic diagram illustrating the connection between a magnetic field connector 431 and a magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. The flange 4311 of the magnetic field connector 431 abuts the end of the extension 4131. This means that there is no longitudinal overlap between the magnetic field connector 431 and the first and second magnetic conductive plates 413, 423, but rather the ends of the flanges abut against each other.

[0138] Figure 23 is a schematic diagram illustrating the connection between a magnetic field connector 431 and a magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. The magnetic field connector 431 lacks flanges 4311 and is plate-shaped. The first and second magnetic conductive plates 413 and 423 extend to the sides until they abut against the inner side of the magnetic field connector 431. The embodiments shown in Figures 22 and 23 place higher demands on the connection process between the magnetic field connector 431 and the magnetic conductive plates.

[0139] Figure 24 is a schematic diagram illustrating the attachment of a magnetic field connector 431 to a magnetic conductive plate in a fresh-keeping storage container 30 according to one embodiment of the present application. The flange 4311 of the magnetic field connector 431 is secured to the first magnetic conductive plate 413 and the second magnetic conductive plate 423 using fasteners 4133 (screws, etc.).

[0140] Figure 25 is a schematic diagram illustrating how a magnetic field connector 431 is secured to a magnetic conductive plate in a fresh-keeping storage container 30 according to another embodiment of the present application. The flange 4311 of the magnetic field connector 431 is secured to the first magnetic conductive plate 413 and the second magnetic conductive plate 423 at respective locations using adhesive or welding at the securing locations 4134.

[0141] Those skilled in the art can flexibly select the desired connection method and fixing method according to the technical process requirements, and the connection methods and fixing methods provided in the above embodiments can be flexibly combined. In some embodiments, the magnetic source sheet is attached to the side of the magnetic conductive plate close to the interior of the fresh-keeping storage space, and the flange 4311 of the magnetic field connector 431 uses the side away from the interior of the fresh-keeping storage space 330 to abut the extension 4131, and the side 4231 close to the interior of the fresh-keeping storage space 330. For example, the first magnetic source sheet 414 can be attached to the lower surface of the first magnetic conductive plate 413, and the top flange 4311 of the magnetic field connector 431 uses the upper surface to abut the lower surface of the extension 4131 of the first magnetic conductive plate 413. The top flange 4311 of the magnetic field connector 431 abuts the bottom surface of the extension 4131 of the first magnetic conductive plate 413 with its upper surface; the second magnetic source plate 424 abuts the top surface of the second magnetic conductive plate 423, and the bottom flange 4311 of the magnetic field connector 431 abuts the top surface of the extension 4231 of the second magnetic conductive plate 423 with its lower surface. This abutting structure makes the magnetic field device 410 more compact and the magnetic circuit smoother.

[0142] In some embodiments, the dimension L1 of the contact area between the flange 4311 and the extensions 4131 and 4231 along the extension direction of the flange 4311 can range from 1 to 10 mm. Theoretically, a larger contact area between the flange 4311 and the extension 4131 facilitates magnetic conduction. However, as the contact area increases, the beneficial effect on the magnetic circuit gradually decreases and more space is occupied.

[0143] During the research and development process, the applicant conducted a lot of analysis on the contact area between the flange 4311 and the extension parts 4131, 4231. The analysis results are as follows: using a magnetic field connector 431 with a thickness of 1mm and a width of 100mm and a magnetic source sheet of set specifications, the dimensions L1 of the contact area of ​​the extension parts 4131, 4231 along the extension direction of the flange 4311 are 0mm (the flange 4311 contacts the ends of the extension parts 4131, 4231 without overlapping), 1mm, 3mm, 6mm, 7mm, 8mm, 9mm, 10mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 4231, 431, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 50mm, 50mm, 50mm, 5 The analysis was conducted for the following conditions: 1) the magnetic field density at the center point varies with different operating conditions; 2) the magnetic field density at the center point varies with different operating conditions; 3) the magnetic field uniformity zone is better than 10%; 4) the magnetic field strength at the center point of the fresh-keeping storage space 330 is 42 Gs, 43 Gs, 46 Gs, 47.8 Gs, 48.9 Gs, 49.5 Gs, 50.0 Gs, and 49.5 Gs, respectively. Figure 26 shows the analysis results of the magnetic field strength at the center point of the fresh-keeping storage container 30 under different contact area sizes between the magnetic field connector 431 and the magnetic conductive plate in one embodiment of the present application.

[0144] Through the above analysis, it can be seen that in the initial stage, the magnetic field increases rapidly with the size L1. After reaching a certain value, the effect of the magnetic field increasing with the size L1 gradually decreases. Based on the above analysis, the solution of this embodiment can set the size L1 to a range of 1 to 10 mm, and in particular, it can be set to 3-8 mm, such as 3 mm, 5 mm, 6 mm, 8 mm, and in particular 6 mm. It not only meets the needs of magnetic field strength, but also minimizes space occupation. There is a gap L2 between the end of the flange 4311 and the magnetic source sheet. By utilizing the gap L2, a magnetic gap can be formed between the magnetic source sheet and the flange 4311, thereby preventing the magnetic field connector 431 from changing the magnetic field distribution of the magnetic source sheet itself, and ensuring the uniformity of the magnetic field distribution in the fresh-keeping storage space 330.

[0145] The flange 4311 of the magnetic field connector 431 uses the side away from the interior of the fresh-keeping storage space 330 to abut the side of the extension 4131 close to the interior of the fresh-keeping storage space 330. The cross-sectional area of ​​each magnetic field connector 431 can be greater than or equal to the area of ​​the contact area. The cross-sectional area of ​​the magnetic field connector 431 is the product of the width and thickness of the magnetic field connector 431, which is related to the magnetic flux capacity of the magnetic field connector 431. The cross-sectional area of ​​each magnetic field connector 431 can be greater than or equal to the area of ​​the contact area, which can ensure that the magnetic flux capacity of the magnetic field connector 431 has sufficient magnetic flux capacity.

[0146] Similarly, the lower end of the magnetic field connector 431 can also be connected to the second magnetic conductive plate 423 using the same connection structure.

[0147] The refrigerator 10 of this embodiment achieves fresh-keeping storage through precise temperature control of the fresh-keeping storage container 30 combined with the influence of a magnetic field. To achieve precise temperature control, the refrigerator's air duct system of this embodiment provides a dedicated fresh-keeping container air supply channel 211 for the fresh-keeping storage container 30. By adjusting this fresh-keeping container air supply channel 211, the on / off and / or volume of the cooling airflow to the fresh-keeping storage container 30 can be controlled.

[0148] The refrigerator 10 can be an air-cooled refrigerator, and an air duct assembly is provided at the rear of the housing 12. The air duct assembly is used to define an air supply duct that provides a refrigerated air flow. In some optional embodiments, a refrigerated air duct assembly 210 is provided at the back of the refrigerated storage compartment 121. A refrigerated air supply blower 212 is provided in the refrigerated air duct assembly 210. The refrigerated air supply blower 212 promotes the formation of a refrigerated air flow that blows from the evaporator cavity of the refrigerator 10, where the evaporator is located, to the storage compartment through the air supply duct. The fresh-keeping container air supply channel 211 is one of the multiple air supply channels provided in the refrigerated air duct assembly 210, and the on-off and / or size of the air flow can be controlled and adjusted. For example, an independent adjustable damper can be provided in the fresh-keeping container air supply channel 211; for another example, the refrigerated air duct assembly 210 is provided with other types of air flow distribution devices, which can control and adjust the air flow of the fresh-keeping container air supply channel 211.

[0149] The refrigeration duct assembly 210 shown in Figure 3 can use a centrifugal fan as the refrigeration supply air fan 212. The refrigeration supply air fan 212 sucks low-temperature air in the evaporation chamber from the rear, and then uses an air flow distribution device (not shown in the figure) to distribute the refrigeration air flow, wherein the fresh-keeping container air supply channel 211 can be controlled to adjust the opening and closing and size.

[0150] Figure 27 is a front view of a fresh-keeping storage container 30 according to one embodiment of the present application, and Figure 28 is a schematic diagram of the fresh-keeping storage container 30 from another angle according to one embodiment of the present application. Figure 29 is a schematic diagram of the fresh-keeping storage container 30 from yet another angle according to one embodiment of the present application. In Figure 29, the rear wall of the outer barrel is omitted to illustrate the inter-barrel return air section 345. An inner barrel return air vent 346 is provided on the rear wall of the inner barrel below the barrel return air vent 317.

[0151] The fresh-keeping storage container 30 can be a drawer-type structure. The fresh-keeping storage container can include a barrel 310 and a drawer 320 (shown in Figure 46). The barrel 310 is box-shaped as a whole and has a forward opening. In other words, the barrel 310 includes a barrel top wall 311, a barrel bottom wall 312, a barrel rear wall 313, a barrel left side wall 314, and a barrel right side wall 315. The drawer 320 is retractably arranged inside the barrel 310 through the forward opening. The drawer 320 includes a drawer bottom plate 322, a drawer rear plate 323, a drawer left side plate 324, a drawer right side plate 325, and a drawer end plate assembly 321, wherein the drawer end plate assembly 321 is arranged at the front of the drawer 320. When the drawer 320 is placed in the barrel 310, the drawer end plate assembly 321 can seal the front opening of the barrel 310, so that a closed storage environment is formed inside the barrel 310, and the drawer 320 and the barrel 310 together define a fresh-keeping storage space 330. When the drawer 320 is pulled out of the barrel 310, the space at the top of the drawer 320 is exposed for taking in and putting in stored items.

[0152] A barrel air outlet 316 is provided at the rear of the barrel top wall 311, near the barrel rear wall 313, to connect with the fresh-keeping container air supply duct 211. The area of ​​the barrel top wall 311 where the barrel air outlet 316 is located can be arranged at a certain angle to facilitate alignment with the fresh-keeping container air supply duct 211. A barrel return air vent 317 is provided on one side of the barrel air outlet 316 and spaced apart from the barrel air outlet 316. In some embodiments, the barrel return air vent 317 can communicate with the space in the refrigerated storage compartment 121 outside the fresh-keeping container, or it can connect to the return air area of ​​the evaporator chamber. The airflow from the fresh-keeping container after heat exchange can be returned to the return air area of ​​the refrigerated storage compartment 121 through the barrel return air vent 317, completing the air circulation through the return air passage from the refrigerated storage compartment 121 to the refrigerator's evaporator chamber. Alternatively, the refrigerator may also be provided with a fresh-keeping container return air duct 213 connected to the barrel return air port 317, directly returning the heat-exchanged airflow from the fresh-keeping storage container 30 to the evaporation chamber. A preferred configuration for the fresh-keeping storage container is to connect the fresh-keeping container return air duct 213 to the barrel return air port 317 and the evaporator chamber, thereby achieving independent air supply and cooling for the fresh-keeping storage container 30.

[0153] The area of ​​the barrel top wall 311 where the barrel air supply port 316 and the barrel air return port 317 are located is tilted from the top to the bottom along the front-to-back direction of the barrel 310. This tilting makes it easier to assemble the fresh-keeping storage container 30 into the refrigerator. In addition, the barrel air supply port 316 allows for smoother air intake.

[0154] A necessary condition for the 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 in 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 items can avoid freezing 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 items. The above specific numerical ranges are only for example.

[0155] However, the temperature of the refrigerated airflow supplied from the evaporator chamber of refrigerator 10 is generally low, possibly below -10 degrees Celsius. Direct contact of the refrigerated airflow with the stored items would obviously cause them to overcool, resulting in freezing or tissue damage, thus compromising the fresh-keeping storage effect. Furthermore, the refrigerated airflow cannot flow evenly throughout the storage space, which can lead to uneven temperatures in the fresh-keeping storage space 330 and reduce the fresh-keeping storage effect. The fresh-keeping storage container 30 of this embodiment has an optimized internal airflow structure to prevent the refrigerated airflow from entering the fresh-keeping storage space 330 and coming into contact with the stored items, thereby ensuring a stable and uniform temperature within the fresh-keeping storage space 330.

[0156] FIG30 is a cross-sectional view of the fresh-keeping storage container 30 shown in FIG27 along the AA direction. The arrow direction in FIG30 is the internal airflow direction of the fresh-keeping storage container 30.

[0157] The airflow within the fresh-keeping storage container 30 is configured as follows: air flows from the air supply port 316 into the rear end of the air supply section 341 (also referred to as the top wall airflow section) defined within the top wall of the fresh-keeping storage container 30. The air then flows from back to front through the air supply section 341. At the front end of the air supply section 341, the air flows into the top end of the air flow section 342 (also referred to as the end plate airflow section) defined within the drawer end panel assembly 321. The air then flows from top to bottom through the air flow section 342. At the bottom end of the air flow section 342, the air enters the gap between the drawer bottom panel 322 and the bottom wall 312 of the fresh-keeping storage container 30. This gap serves as the cooling section 343 (also referred to as the bottom wall airflow section) within the fresh-keeping storage container 30. The air then flows from front to back through the cooling section 343. At the connection between the rear end of the drawer bottom plate 322 and the drawer rear plate 323 (i.e., the rear end of the cooling section 343), air flows into the gap between the drawer rear plate 322 and the barrel rear wall 313. This gap serves as the inner barrel return air section 344 (also known as the rear wall air path section). An inner barrel return air port 346 is provided in the middle of the barrel rear wall 313, and an inter-barrel return air section 345 is formed between the inner barrel return air port 346 and the barrel return air port 317 on the barrel rear wall 313. The airflow ultimately flows from the inner barrel return air port 346 through the inter-barrel return air section 345 to the barrel return air port 317.

[0158] The internal air path of the above-mentioned fresh-keeping storage container 30 surrounds the entire fresh-keeping storage container 30. Without entering the fresh-keeping storage space 330 and thus not directly contacting the stored items, sufficient heat exchange can be achieved to evenly cool the fresh-keeping storage container 30.

[0159] Furthermore, the internal airflow of the fresh-keeping storage container 30 is tailored to the temperature characteristics of the cooling airflow. As the cooling airflow flows, it gradually exchanges heat, gradually increasing its temperature. The airflow temperature is lowest in the supply air section 341, formed within the interlayer of the barrel top wall 311. This section conducts cooling energy downward from the barrel top wall 311. The stored items are relatively far from the barrel top wall 311, resulting in the lowest heat transfer efficiency. Furthermore, in the airflow section 342, the heat transfer efficiency of the drawer end panel assembly 321 is also lower than that of the drawer bottom panel 322. The gap between the drawer bottom panel 322 and the barrel bottom wall 312 serves as the cooling air section 343, where cooling energy exchanges heat with the drawer bottom panel 322, achieving the highest heat transfer efficiency. In other words, as the airflow temperature increases, the heat transfer efficiency of each airflow section actually increases, ensuring that the temperature at each location within the fresh-keeping storage space 330 remains roughly the same. The solution of this embodiment realizes an independent surrounding air supply mode in the sealed fresh-keeping storage container 30, thereby ensuring the temperature conditions required for fresh-keeping storage.

[0160] In other optional embodiments, the internal air path of the fresh-keeping storage container 30 may also adopt other surrounding methods, such as from the left side forward, from the front of the drawer to the right, and then from the right side back to the back, that is, horizontally surrounding the fresh-keeping storage container 30. In comparison, the internal air path that surrounds the fresh-keeping storage container 30 longitudinally in the previous embodiment has a better cooling effect.

[0161] To improve cooling efficiency, existing refrigerators with sealed drawers typically require direct cooling airflow into the drawer space. To avoid localized overcooling caused by direct current, these techniques typically involve using smaller holes to deliver air into the drawer or providing dedicated air ducts within the drawer. The fresh-keeping storage container 30 of this embodiment creatively implements indirect cooling through a surrounding air path, rather than directing cooling air into the fresh-keeping storage space 330. This solution, combined with a magnetic field, enhances fresh-keeping performance and overcomes existing technical biases among those skilled in the art.

[0162] The fresh-keeping storage container 30 of this embodiment has a barrel body 310 comprising an outer barrel shell 3101 and an inner barrel body 318 disposed inside the outer barrel shell. The outer barrel shell serves as the outermost layer of the fresh-keeping storage container 30, and a portion of the outer barrel shell can utilize the chamber structural components within the refrigerated storage compartment 121. For example, when the fresh-keeping storage container 30 is disposed at the bottom of the refrigerated storage compartment 121, the bottom plate of the outer barrel shell can utilize the bottom wall of the refrigerated storage compartment 121. In addition, the top plate of the outer barrel shell 3101 can extend laterally to serve as the top plate of other drawer-type storage containers 122 that are arranged laterally parallel to the fresh-keeping storage container 30. The inner barrel body 318 can be formed by splicing a plurality of liner components together through snap-fitting or other connection methods. For example, the liner components can be split into three or four liner components according to the convenience of assembly. The inner barrel body serves as the barrel body portion where the drawers are arranged.

[0163] Figure 30 is a cross-sectional view taken along line BB in Figure 27 , illustrating the structure of the air supply section 341 in the fresh-keeping storage container 30. The first magnetic conductive plate 413 forms a continuous surface, serving as the lower wall of the air supply section 341. The top plate of the outer shell and the first magnetic conductive plate 413 form a top interlayer of the barrel body. A top insulation layer 3111 is disposed within this top interlayer. The top insulation layer 3111 creates the aforementioned shape of the air supply section 341. For example, the top insulation layer 3111 defines an air duct that gradually widens from front to back along the air supply direction, extending from the barrel body air supply opening 316. Specifically, the rear end of the air supply section 341 has a width that is substantially the same as the barrel body air supply opening 316; the front end of the air supply section 341 has a width that is only slightly smaller than the overall width of the storage container 30. The lateral sides of the air supply section 341 form a continuous, flat air guide surface. In the planar area of ​​the air supply section 341, the top insulation layer 3111 forms one or more diverter ribs 3112, 3113, and 3114. These ribs further divide the cooling airflow into multiple streams, allowing the airflow to flow evenly through the barrel top wall 311, ensuring a uniform temperature in the headspace above the fresh-keeping storage container 30. The rear ends of the diverter ribs 3112, 3113, and 3114 face the barrel air supply port 316 and then extend along the overall shape of the air supply section 341. The diverter ribs 3112, 3113, and 3114 divide the air supply section 341 into multiple airflow channels, and are configured so that the airflow flowing through each channel is roughly equal. The openings of the airflow channels toward the barrel air outlet 316 are configured to vary in size based on airflow velocity. For example, the airflow channel near the center, directly facing the barrel air outlet 316, is narrower, while the airflow channels near the sides are wider. By adjusting the size of the entrances to the various airflow channels, the airflow within each channel can be adjusted. Furthermore, the extension lengths and directions of the diverter ribs 3112, 3113, and 3114 can also be adjusted based on airflow distribution needs.

[0164] Figure 31 illustrates an embodiment in which three diverter ribs 3112, 3113, and 3114 are provided. Those skilled in the art can adjust the number and direction of the diverter ribs as needed to ensure uniform cooling airflow through the top wall of the barrel. Of the three diverter ribs 3112, 3113, and 3114, the central diverter rib 3112, directly facing the barrel air outlet 316, has the longest length toward the barrel air outlet 316. This first divides the airflow into two left and right streams, and then further divides the airflow using the two diverter ribs 3113 and 3114 on either side. In other words, one end of each of the first, second, and third diverter ribs 3112, 3113, and 3114 faces the barrel air outlet 316 and extends toward the drawer end panel assembly. The first diverter rib 3112 faces the barrel air outlet 316, while the second and third diverter ribs 3113 and 3114 are located on either side of the first diverter rib 3112. The end of the first diverter rib 3112 facing the barrel air outlet 316 is closer to the barrel air outlet 316 than the ends of the second diverter rib 3113 and the third diverter rib 3114 facing the barrel air outlet 316. That is, the cooling airflow is first diverted by the first diverter rib 3112 and then further diverted by the second diverter rib 3113 and the third diverter rib 3114.

[0165] Figure 32 is a schematic diagram of the top of the inner barrel 318 below the first magnetic source sheet 414 in a fresh-keeping storage container 30 according to one embodiment of the present application. Figures 33 and 34 are schematic diagrams of the top of the inner barrel 318 shown in Figure 32 from two different angles. The inner barrel 318 can be made of plastic or other materials. The top surface of the inner barrel 318 is provided with protrusions 3181, which can be a plurality of ribs arranged vertically and horizontally or an array of raised dots. The protrusions 3181 abut against the first magnetic source sheet 414, reducing contact between the first magnetic source sheet 414 and the inner barrel 318. In other words, the protrusions 3181 on the top surface of the inner barrel 318 abut against the first magnetic source sheet 414, creating point or line contact between the first magnetic source sheet 414 and the inner barrel 318, thereby reducing localized low temperatures caused by direct heat transfer from the first magnetic source sheet 414 to the inner barrel 318. The protrusion 3181 on the top surface of the inner barrel body 318 is used to form an air gap between the first magnetic source piece 414 and the inner barrel body 318 .

[0166] In an embodiment where a plurality of ribs 3181 arranged vertically and horizontally are used to support the first magnetic source sheet 414, the ribs 3181 divide the top surface of the inner barrel 318 into a plurality of grids. The size of the grids (i.e., the density of the ribs) is determined based on the support requirements for the first magnetic source sheet 414 and the thermal insulation effect of the air gap. In other words, the arrangement of the ribs 3181 on the top surface of the inner barrel 318 must take into account both the support requirements for the first magnetic source sheet 414 and the thermal insulation effect of the air gap.

[0167] As previously described, after the first magnetic conductive plate 413 and the first magnetic source plate 414 are mated, they must fit tightly together, achieving a zero-gap fit. Relying solely on the magnetic attraction of the first magnetic source plate 414 to the first magnetic conductive plate 413 is not entirely reliable. Traditionally, this problem has been addressed through the use of a support plate. However, the fresh-keeping storage container 30 of this embodiment, based on the consideration of temperature uniformity, creatively proposes the use of longitudinally and transversely arranged ribs 3181 for support. This provides reliable support while also utilizing air gaps to achieve uniform cooling.

[0168] The height of the protrusion 3181 (rib) on the top surface of the inner barrel 318 can be set according to the size of the air gap that meets uniform cooling requirements. It can generally be set to 1-3 mm, taking up less space to meet cooling requirements.

[0169] This embodiment creatively recognizes that the temperature of the cold air just entering the barrel body 310 is very low. In order to solve the problem of local over-cooling caused by the cold air conducting cold energy to the fresh-keeping storage space 330, a first magnetic field component 41 and a thermal insulation layer (air gap) are set between the air supply section 341 and the barrel inner liner 318, so that the cold energy of the cold air is conducted to the fresh-keeping storage space 330 through the first magnetic field component 41 (the first magnetic source piece 414 also has a certain heat insulation effect) and the thermal insulation layer (air gap) and the top wall of the inner barrel body 318, thereby transferring an appropriate amount of cold energy to the fresh-keeping storage space 330, helping to maintain a suitable storage temperature in the entire fresh-keeping storage space 330, and effectively avoiding the problem of local over-cooling in the fresh-keeping storage space 330.

[0170] In addition to the air gap, in the solution of this embodiment, thermal insulation panels (foam panels, vacuum insulation panels, etc.) and cold storage materials can also be used to achieve the heat insulation function.

[0171] A plurality of latches 3182 may also be provided on both lateral sides of the top surface of the inner barrel 318. The latches 3182 are used to latch onto the extension 4131 of the first magnetic conductive plate 413, pressing the first magnetic conductive plate 413 and the first magnetic source sheet 414 flatly against the top surface of the inner barrel 318. This ensures that the first magnetic field assembly 411 is stably and reliably fixed to the inner barrel 318.

[0172] In some embodiments, the protruding section of the extension 4131 may have a height greater than the thickness of the first magnetic source piece 414 , thereby providing space for the protruding section 3181 to support the first magnetic source piece 414 . Furthermore, the protruding section of the extension 4131 may better cooperate with the claw 3182 .

[0173] In other embodiments, the protruding height of the protruding section of the extension portion 4131 may also be substantially the same as the thickness of the first magnetic source sheet 414 , so that the bottom surface of the first magnetic field assembly 411 is substantially flush.

[0174] In the embodiment where the first magnetic field assembly 411 is provided with the first electromagnetic coil 415, a coil receiving groove 3184 for accommodating the first electromagnetic coil 415 may also be provided on the top surface of the inner barrel 318. The shape of the coil receiving groove 3184 is adapted to the outer shape of the first electromagnetic coil 415, and the groove depth of the coil receiving groove 3184 is adapted to the thickness of the first electromagnetic coil 415, ensuring that the first electromagnetic coil 415 can reliably abut against the first magnetic source sheet 414.

[0175] One or more sensor accommodating parts 3185, light accommodating parts 3186, cable accommodating grooves 3187, etc. may also be provided on the top surface of the inner barrel body 318. The sensor accommodating part and the light accommodating part may protrude toward the fresh-keeping storage space 330. The sensor accommodating part 3185 is used to place the temperature sensor 3188, and its size and shape are adapted to the outer shape of the temperature sensor 3188. In some embodiments of the present application, the temperature sensor 3188 and the sensor accommodating part 3185 may be provided in multiple numbers (for example, two) to detect the temperature of different areas at the top of the fresh-keeping storage space 330. For example, the temperature sensors 3188 may be arranged at intervals along the flow direction of the refrigerated airflow, so as to respectively detect the temperature differences upstream and downstream of the refrigerated airflow. The temperature detected by the temperature sensor 3188 is used as the basis for refrigeration control of the fresh-keeping storage container 30.

[0176] The light receiving portion 3186 is used to place a light source, and its size and shape are adapted to the shape of the light source. The light source is used to illuminate when the drawer 320 is pulled out.

[0177] The cable receiving groove 3187 is used to arrange various cables of the temperature sensor 3188 and the light source, such as power cables and signal cables. The cable receiving groove 3187 leads the various cables to the outside of the fresh-keeping storage container 30.

[0178] The top surface of the inner barrel body 318 facing the interior of the fresh-keeping storage space 330 is a complete surface, and the cooling airflow of the air supply section 341 will not leak into the interior of the inner barrel body 318, thereby helping to ensure that the temperature in the fresh-keeping storage space 330 drops steadily.

[0179] Figure 35 is a schematic diagram of an air guide frame 319 on the top wall of an inner barrel 318 in a fresh-keeping storage container 30 according to one embodiment of the present application. Figure 36 is a schematic diagram of a wind shield 350 at the wind shield 319 shown in Figure 35. Figure 37 is a partial enlarged view of point E in Figure 30, showing the mating area between the wind shield 350 and the air guide frame 319.

[0180] The front end of the top wall of the inner barrel 318 is provided with an air guide frame 319, which defines the front air outlet 3191 of the air supply section 341. The air guide frame 319 extends upward from the front end of the top wall of the inner barrel 318, and the air guide frame 319 forms a plurality of air outlets 3191 to discharge the air after passing through the air supply section 341.

[0181] The air guide frame 319 can be provided with a snap-on structure such as a snap-on structure or a snap-on hole above the air outlet 3191. The air guide frame 319 is snap-on connected to the front end of the barrel shell through the above-mentioned snap-on structure to achieve a fixed connection between the inner barrel body 318 and the barrel shell.

[0182] The wind deflector frame 319 may be provided with a windshield connecting portion 3192 below the air outlet 3191. This windshield connecting portion 3192 is used to connect to the windshield 350 below the inner barrel 318. In some embodiments, the windshield connecting portion 3192 may be configured as a horizontally disposed, rearwardly protruding connecting strip. The upper and lower surfaces of the connecting strip may be provided with a single or multiple clips.

[0183] Windshield strip 350 includes a main windshield strip body 3501 and a snap-in slot 3502. The snap-in slot 3502 is located at the top of the windshield strip 350 and forms a forward-opening snap-in slot 3503. The snap-in slot 3503 is designed to engage with the windshield strip connecting portion 3192 and includes a snap-in structure that mates with the snap-in strip 3193. The shape of the snap-in slot 3503 matches the outer shape of the connecting strip.

[0184] The windshield main body 3501 extends obliquely downward from the front end of the lower groove wall of the engaging groove portion 3502. The extension length requires that when the drawer 320 is inside the barrel body 310, the front end of the windshield main body 3501 can contact the rear portion of the drawer end plate assembly 321, thereby allowing the airflow passing through the air outlet 3191 of the air guide frame 319 to enter the air flow section 342 defined in the drawer end plate assembly 321. In other words, the windshield main body 3501 blocks the gap between the top of the barrel body 310 and the drawer end plate assembly 321, preventing airflow from entering the fresh-keeping storage space 330 through the gap and affecting the uniform cooling of the fresh-keeping storage space 330.

[0185] The extension length of the windshield strip body 3501 in the front-to-back direction is set according to the size of the gap between the top of the barrel body 310 and the drawer end plate assembly 321. Considering the deformation and sealing effect, it can be set to be greater than or equal to 5 mm and less than or equal to 15 mm.

[0186] The snap-fit ​​groove 3502 is made of a relatively hard material (e.g., ABS or a similar material) to facilitate secure snap-fitting with the air guide frame 319 of the barrel. The wind deflector body 3501 is made of a relatively soft material (e.g., TPE (Thermo Plastic Elastomer), rubber, silicone, etc.) to facilitate deformation during contact with the drawer end panel assembly 321, thereby achieving a good seal. The wind deflector 350 can be manufactured using a two-component injection molding process.

[0187] The windshield strip 350 of this embodiment is secured to the connecting strip by means of a snap-fitting groove 3503, and the opening direction of the snap-fitting groove 3503 aligns with the opening direction of the barrel body 310. As the drawer 320 is placed into the barrel body 310, the windshield strip body 3501 gradually contacts the end plate hood 3211 at the rear of the drawer end plate assembly 321. The windshield strip body 3501 is subjected to backward pressure from the end plate hood 3211, which transfers the pressure to the snap-fitting groove 3502. The snap-fitting groove 3502 then slightly expands and deforms to offset some of the pressure, thereby reducing the pressure burden on the connection between the snap-fitting groove 3502 and the connecting strip, and thus improving the service life of the windshield strip 350. Furthermore, the snap-fitting structure facilitates replacement of the windshield strip after aging.

[0188] A first rib 3504 is provided on the inner side of the sidewall of the connecting groove 3502 and the main body 3501 of the windshield strip 350. After the windshield strip is installed on the wind guide frame 319, the first rib 3504 engages with the retaining strip 3193 at the bottom of the connecting strip on the wind guide frame 319. The first rib 3504 and retaining strip 3193 may be provided with mutually cooperating guide surfaces. Specifically, the forward-facing side of the first rib 3504 is formed with an inclined guide surface to facilitate assembly of the windshield strip 350. This guide surface guides the connecting groove 3503 during installation of the windshield strip 350. The rearward-facing side of the first rib 3504 serves as a stop surface. Once the first rib 3504 engages with the retaining strip 3193, the stop surface prevents the first rib 3504 and retaining strip 3193 from sliding out after assembly.

[0189] The snap-in groove 3502 may be provided with a second rib 3505 behind the first rib 3504. After the windshield strip is assembled, the snap-in strip 3193 is positioned between the first rib 3504 and the second rib 3505. The top of the second rib 3505 is curved, abutting against the connecting strip, thereby strengthening the connection between the windshield strip 350 and the connecting strip. The first and second ribs 3504, 3505 have the same height, which is less than or equal to one-quarter the width of the snap-in groove 3503 (the distance between the two groove sidewalls).

[0190] A third rib 3506 may be provided on the groove wall (top wall) opposite the first and second ribs 3504, 3505 of the engaging groove 3503. The front surface of the third rib 3506 may also be provided with a guide surface that engages with the connecting strip. The third rib 3506, together with the first and second ribs 3504, 3505, securely engages the connecting strip, ensuring a secure connection between the windshield strip 350 and the connecting strip while providing a certain amount of room for deformation.

[0191] The windshield strip main body 3501 is in the shape of a curved sheet. The windshield strip main body 3501 is bent downward as a whole, that is, with respect to the airflow, the windshield side is a concave surface. During the contact process between the windshield strip 350 and the drawer end panel assembly 321, the windshield strip 350 gradually deforms. With the structure of the above-mentioned windshield strip 350, the deformation occurs at the position where the windshield strip main body 3501 is connected to the snap-in groove 3502 and in the middle of the windshield strip main body 3501. The above-mentioned two deformations can reduce the pressure on the windshield strip 350 and extend its service life. On the other hand, during the compression deformation process of the windshield strip 350, the overall shape of the windshield surface can be maintained, so that the airflow can flow smoothly.

[0192] The curvature of the windshield strip body 3501 becomes smaller and smaller from the position where it is connected to the clamping groove 3502. In other words, the curvature of the windshield strip body 3501 becomes more and more gentle, which is conducive to ensuring the windshield effect of the windshield strip 350.

[0193] The thickness of the middle section of the windshield body 3501 is greater than that of the ends. This makes deformation easier at the ends of the windshield body 3501, reduces feedback resistance of the windshield body 3501, and improves the user experience. For example, the thickness of the end sections of the windshield body 3501 can be 0.2 mm, while the thickness of the middle section can be 1 mm.

[0194] Figure 38 is a schematic diagram of the cooperation between the inner barrel 318 and the drawer end plate assembly 321 in the fresh-keeping storage container 30 according to one embodiment of the present application. Figure 39 is an exploded view of the components shown in Figure 38.

[0195] An end plate fitting 370 is provided at the front of the barrel body 310. The end plate fitting 370 can be integrally provided with the inner barrel body 318. In other embodiments, the end plate fitting 370 can also be a separate end plate fitting 370. The end plate fitting 370 is provided around the front opening of the barrel body 310. The end plate fitting 370 has a clip structure provided at intervals along the front opening of the barrel body 310 to clip into the inner barrel body 318.

[0196] Figures 40 and 41 are schematic diagrams of the end plate fitting 370 in the fresh-keeping storage container 30 from two different perspectives according to an embodiment of the present application, and Figure 42 is a schematic diagram of the annular sealing strip 371 in the fresh-keeping storage container 30 according to an embodiment of the present application.

[0197] The front side of the end plate fitting 370 is provided with a sealing groove 3701 along the periphery of the opening of the barrel body 310. The groove 3701 is positioned forward to accommodate an annular sealing strip 371. The rear side of the end plate fitting 370 is also provided with a barrel body connecting strip 3706 protruding toward one side of the barrel body, outside the circumference of the sealing groove 3701. The barrel body connecting strip is provided with a plurality of intermittent engaging structures (e.g., engaging holes) at intervals to engage with corresponding engaging structures (e.g., claws) provided on the inner barrel body, thereby connecting the end plate fitting 370 to the inner barrel body 318.

[0198] The sealing groove 3701 forms a rearward-facing protrusion 3703 on the rear side of the end plate fitting 370. Below the top section of the protrusion 373 formed by the sealing groove 3701, a transition duct 3704 is formed that connects to the front air outlet 3191 of the air guide frame 319. The lower end of the transition duct 3704 is connected to the top air inlet 3421 of the air flow section 342. A transition duct outlet 3705 is defined on the lower surface of the transition duct 3704, opposite the top air inlet 3421 of the air flow section 342.

[0199] That is, the transition duct 3704 of the end plate fitting 370 can convert the airflow from forward blowing to downward blowing, that is, the transition duct 3704 serves as the area where the airflow direction is turned. The bottom wall of the transition duct 3704 is formed by a portion of the groove wall of the sealing installation groove 3701, which saves space.

[0200] On the other hand, the transition air duct 3704 is located below the top annular sealing strip 371, thereby avoiding direct contact with the exterior of the fresh-keeping storage container 30 and preventing condensation. Since the air duct of the fresh-keeping storage container 30 of this embodiment needs to pass through the junction of the barrel body 310 and the drawer 320, the structure of the end plate fitting 370 allows the cooling airflow to smoothly pass through the junction of the barrel body 310 and the drawer 320, resulting in a compact structure, small footprint, and the prevention of condensation.

[0201] An annular sealing strip 371 is at least partially disposed within the sealing groove 3701 and serves to seal the gap between the drawer end panel assembly 321 and the opening of the drum body 310. The sealing groove 3701 may also be interspersed with a plurality of elastic member accommodating portions 3702. Multiple elastic members 3711 (e.g., springs or elastic airbags) are disposed within the elastic member accommodating portions 3702. One end (the rear end) of the elastic member 3711 abuts the bottom of the sealing groove 3701, while the other end (the front end) of the elastic member 3711 abuts the rear side of the annular sealing strip 371. As the drawer 320 is pushed into the drum body 310, the rear side of the drawer end panel assembly 321 contacts the front side of the annular sealing strip 371, further compressing the annular sealing strip 371. The annular sealing strip 371 then compresses the elastic members 3711, creating a force that pushes the annular sealing strip 371 toward the drawer end panel assembly 321. This allows the annular sealing strip 371 to be in closer contact with the drawer end plate assembly 321, which helps the cooling air flow to enter the top of the air flow section 342 defined in the drawer end plate assembly 321 from the air supply section 341, thereby achieving the surrounding of the cooling air flow.

[0202] The annular sealing strip 371 can be made of materials such as soft polyvinyl chloride (SPVC), silicone, and rubber, which have a certain degree of elasticity. The elastic member 3711 has two ends in the sealing direction that respectively abut against the bottom of the sealing mounting groove 3701 and the annular sealing strip 371. The elastic member 3711 is distributed at intervals along the circumference of the sealing mounting groove 3701, thereby providing elastic support and elastic space at different positions. In the case that the force at each position of the annular sealing strip 371 is uneven, the elastic member 3711 can also balance the force at each position of the annular sealing strip 371 by adjusting its own compression, thereby achieving consistent sealing of the annular sealing strip 371 around the circumference of the barrel opening.

[0203] Figure 43 is a schematic diagram of the interior of a barrel 310 in a fresh-keeping storage container 30 according to one embodiment of the present application. The fresh-keeping storage container 30 of this embodiment can utilize a push-open drawer, that is, push-open guide rails 3141 are provided on both sides of the barrel 310, and the drawer is mounted on the push-open guide rails 3141. To open the drawer 320, the drawer 320 is first slightly pushed inward further, causing the locking members of the push-open guide rails 3141 to disengage. A spring or other elastic member then pushes the drawer 320 outward a certain distance, allowing the user to further pull the drawer 320 out. To push the drawer 320 in, the locking members of the push-open guide rails 3141 engage, securing the drawer 320 in place. This push-open drawer eliminates the need for a handle on the drawer 320, making it easier for the user to operate while ensuring a tight seal.

[0204] In particular, for push-open drawers, opening requires a certain amount of inward compression before the push-open mechanism of the push-open guide rail 3141 can be released. Therefore, the annular sealing strip 371 has a certain amount of space to move forward and backward relative to the end plate fitting 370, which not only strengthens the seal but also facilitates opening of the push-open storage unit. This makes it possible to apply the surrounding air duct to push-open drawers.

[0205] The annular sealing strip 371 can also be provided with a hook 3712 extending toward the end plate fitting 370 (extending backward). A slot 3707 is formed on the inner wall of the sealing mounting groove 3701. The hook 3712 can be engaged with the slot 3707 in the embedding direction of the annular sealing strip 371. When the annular sealing strip 371 moves in the space in the front-to-back direction, the hook 3712 can also move freely in the slot 3707. When the forward movement stroke of the annular sealing strip 371 exceeds the set formation, the hook 3712 is engaged with the slot 3707, thereby limiting the position of the annular sealing strip 371, thereby preventing the annular sealing strip 371 from falling out of the sealing mounting groove 3701. The annular sealing strip 371 can also be provided with a guide column 3713 extending toward the end plate fitting 370 (extending backward). The elastic member 3711 can be sleeved on the guide post 3713, so that the position of the elastic member 3711 is limited by the guide post 3713. Most of the sealing body 3714 of the annular sealing strip 371 is embedded in the sealing installation groove 3701 to achieve reliable sealing of the fresh-keeping storage container 30.

[0206] In other optional embodiments of the present application, the air supply section 341 may also be disposed between the first magnetic field assembly 411 and the top wall of the inner barrel 318. In other words, the air duct member 3111 is disposed between the first magnetic field assembly 411 and the sidewall of the inner barrel 318. The air supply section 341 is located below the first magnetic field assembly 411. Figure 44 is a schematic diagram of the air duct within the fresh-keeping storage container 30 according to one embodiment of the present application, and Figure 45 is a partial enlarged view of point F in Figure 44.

[0207] An air supply section 341 is formed between the first magnetic field assembly 411 and the side wall of the inner barrel 318. The air supply section 341 is closer to the inner barrel 318. During the refrigeration process, the fresh-keeping storage space 330 can be cooled more quickly. If the first magnetic field assembly 411 generates heat during the magnetic field generation process, the air flow flowing through the air supply section 341 can also take away the heat of the first magnetic field assembly 411, reducing the impact of the heat generated by the first magnetic field assembly 411 on the temperature distribution of the fresh-keeping storage space 330. The air duct member 3111 is arranged below the first magnetic field assembly 411 and is configured to define the air supply section 341. In order to prevent the fresh-keeping storage space 330 from being close to the air supply section 341, the air duct member 3111 can also be provided with an insulation layer 3102 between the air supply section 341 and the inner barrel 318, and the insulation layer 3102 can be arranged below the air supply section 341. Insulation layer 3102 can be made of insulating foam material with a thickness ranging from 5 to 10 mm. Alternatively, insulation layer 3102 can be made of a vacuum insulation panel with a thickness ranging from 2 to 5 mm. Setting a thickness range based on the insulation layer material can ensure a high cooling rate while preventing localized low temperatures. In other embodiments, if the cooling airflow is at a higher temperature (e.g., above -7°C), PE or an air layer can also be used as insulation layer 3102.

[0208] Alternatively, the insulation layer 3102 may be replaced with a cold storage component. A cold storage component is provided between the air supply section 341 and the sidewall of the inner barrel 318. The cold storage component can store cold energy during ventilation in the supply and return air ducts, and release the cold energy to the fresh food storage space 330 through the sidewall of the inner barrel 318 when ventilation is stopped.

[0209] The air supply section 341 is close to the side wall of the inner barrel body 318, which can make the cooling speed of the inner barrel body 318 faster. The use of the cold storage component can better reduce the temperature fluctuation in the fresh-keeping storage space 330. When the refrigeration is stopped, the temperature inside the fresh-keeping storage container 30 rises more slowly and the temperature is more stable.

[0210] Those skilled in the art may choose to dispose the air supply section 341 above or below the first magnetic field assembly 411 according to the refrigeration requirements and the barrel structure of the fresh-keeping storage container 30 .

[0211] Figure 46 is a schematic diagram of a drawer 320 in a fresh-keeping storage container 30 according to an embodiment of the present application from one perspective; Figure 47 is a schematic diagram of a drawer 320 in a fresh-keeping storage container 30 according to another perspective; Figure 48 is an exploded view of the components of the drawer 320 in a fresh-keeping storage container 30 according to an embodiment of the present application.

[0212] The drawer 320 includes a storage body consisting of a drawer bottom panel 322, a drawer rear panel 323, a drawer left panel 324, and a drawer right panel 325. A drawer end panel assembly 321 is located in front of the storage body, and a storage tray 360 is placed within the storage body. The outer surfaces of the drawer left panel 324 and the drawer right panel 325 are each formed with a connecting plate 3251 for connecting to the push-open guide rail 3141, thereby allowing the drawer to be pulled relative to the barrel body 310 as the guide rail extends and retracts.

[0213] The drawer end panel assembly 321 can generally be provided with an end panel body 3212, an end panel hood 3211, and an end panel insulation member 3213 located between the end panel hood 3211 and the end panel body 3212. The end panel body 3212 is flat and may include a base plate, decorative strips located around the base plate, and a panel located on the front side of the base plate. The base plate serves as a basic component for connecting other components of the drawer end panel assembly, and the decorative strips are buckled onto the outer periphery of the base plate. The panel may be glass or other thin plates with an appearance design, serving as the appearance of the drawer. There may be a gap between the base plate and the panel, so that the air between the gaps can be used to achieve thermal insulation, thereby reducing the amount of cold air dissipated outward through the drawer end panel assembly 321.

[0214] The end plate hood 3211 is located inside (at the rear of) the end plate body 3212. Together, the end plate hood 3211 and the end plate body 3212 define an air duct space. An end plate heat insulator 3213 is located in front of the end plate hood 3211, meaning that the end plate heat insulator 3213 is located at the rear of the air duct space. The air duct space between the end plate heat insulator 3213 and the end plate body 3212 forms a wind passage section 342.

[0215] The end panel hood 3211 protrudes from the end panel body 3212 into the fresh-keeping storage space 330. The left, right, and bottom sidewalls of the end panel hood 3211 can be connected to the drawer left panel 324, the drawer right panel 325, and the drawer bottom panel 322, respectively. A top air inlet 3421 is provided on the top wall of the end panel hood 3211, opposite the lower end of the transition duct 3704. To prevent foreign matter from entering the airflow section 342, an air inlet grille can be provided at the top air inlet 3421.

[0216] Figure 49 is a partially enlarged sectional view of the cooperation position between the top of the drawer end plate assembly 321 and the top of the front end of the barrel body 310 in the fresh-keeping storage container 30 according to an embodiment of the present application; Figure 50 is a schematic diagram of the cooperation between the top wall of the drawer end plate assembly 321 and the bottom wall of the transition air duct 3704 in the fresh-keeping storage container 30 according to an embodiment of the present application.

[0217] The bottom wall of the transition duct 3704 (the surface where the air outlet of the transition duct 3704 is located) and the top wall of the end plate hood 3211 (the surface where the top air inlet 3421 of the end plate hood 3211 is located) are both inclined. This inclination is downward, from front to back. In other words, from the perspective of the fresh-keeping storage container 30 as a whole, the plane of the bottom wall of the transition duct 3704 and the plane of the top wall of the end plate hood 3211 are inclined in the same direction, that is, they both slope from front to back toward the bottom of the fresh-keeping storage container 30.

[0218] The angle between the top wall of the end plate hood 3211 (the surface where the top air inlet 3421 of the end plate hood 3211 is located) and the vertical direction has a value range of greater than or equal to 10 degrees and less than or equal to 80 degrees. The angle between the plane where the lower end of the transition duct 3704 is located and the vertical direction can also be set to a value range of greater than or equal to 10 degrees and less than or equal to 80 degrees. The top wall of the end plate hood 3211 and the plane where the lower end of the transition duct 3704 is located can be set parallel to each other and the distance can be set to be greater than or equal to 3 mm and less than or equal to 20 mm. This distance can, on the one hand, avoid serious air leakage caused by excessive distance, and on the other hand, it is also beneficial to avoid friction between the end plate hood 3211 and the barrel body 310 during the pulling and pulling of the drawer 320. The flow path of the refrigeration airflow is parabolic as a whole, not a vertical angle, so that the refrigeration airflow flows more smoothly from the end plate hood 3211 to the lower end of the transition duct 3704, which is beneficial to reduce wind loss and effectively avoid cold concentration. In addition, the end plate of the end plate wind shield 3211 is inclined, which is also helpful in reducing the probability of foreign matter falling into the wind section 342.

[0219] The inclined setting of the bottom wall of the transition air duct 3704 can make the flow path of the cooling air flow sent out of the transition air duct outlet 3705 into the air flow section 342 in a parabolic shape as a whole, thereby making the cooling air flow smoother in the joint area between the drawer 320 and the barrel body 310, which is conducive to reducing wind resistance and air leakage.

[0220] In addition, when the user of the refrigerator takes and places the stored items in the drawer 320 from above, from the user's perspective, the above-mentioned inclination can visually make the drawer end panel assembly 321 thinner, giving the user a better user experience, thereby avoiding complaints from users about the air flow section 342 occupying the front and rear space.

[0221] In some embodiments, the angle between the plane where the bottom wall of the transition duct 3704 is located and the vertical direction is angle a. In other words, the design value of angle a can range from greater than or equal to 60 degrees to less than or equal to 75 degrees. For example, it can be 60 degrees, 62 degrees, 64 degrees, 70 degrees, 72 degrees, or 75 degrees.

[0222] Accordingly, the angle b between the plane of the top wall of the end plate air shield 3211 and the vertical direction is denoted by angle a. In other words, the design value of angle b can range from 60 degrees to 75 degrees. For example, angles a, b, and 75 degrees can be set to be equal.

[0223] The distance d between the air outlet of the transition duct 3704 and the top air inlet 3421 of the end plate hood 3211 can be set to be greater than or equal to 3 mm and less than or equal to 20 mm. For example, it can be 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, etc. This ensures that there is no structural interference between the drawer and the drum body, while also preventing air leakage due to excessive spacing.

[0224] The area of ​​the top air inlet 3421 of the end plate air cover 3211 can be larger than the area of ​​the air outlet of the transition air duct 3704 , so as to facilitate the cooling air flow to smoothly enter the wind section 342 .

[0225] A boss 3214 is laterally disposed on the upper portion of the rear wall of the end plate air shield 3211, near the top air inlet 3421 of the end plate air shield 3211. When the drawer 320 is closed, the top surface of the boss 3214 is located above or flush with the lowest end of the windshield body 3501 of the windshield 350 in its natural state. Specifically, when the windshield body 3501 is not in contact with the drawer end plate assembly 321, the front end of the windshield body 3501 is slightly higher than the upper edge of the boss 3214. As the drawer 320 is pushed back, the windshield body 3501 abuts against the top of the boss 3214 or near its top. When the windshield body 3501 is deformed and bent by the abutment, a portion of it contacts the surface of the end plate air shield 3211, while a portion contacts the top surface of the boss 3214. Together with the aforementioned angled surface, a cavity is formed, enhancing the sealing effect.

[0226] In some embodiments, end plate air guide ribs (not shown) may be provided between the end plate insulation 3213 and the end plate body 3212. The end plate air guide ribs divide the air flow section 342 into multiple air ducts, thereby ensuring that the cooling airflow can flow evenly through the air flow section 342. The end plate insulation 3213 can prevent the cooling airflow from rapidly transferring cold air to the front of the fresh food storage space 330, thereby preventing the front area of ​​the fresh food storage space 330 from being overcooled.

[0227] The end plate air guide ribs can form at least two air guide surfaces, which are distributed left and right within the air flow section 342. The air guide surface on the left side slopes from the left side of the air flow section 342 to the right side and from the bottom to the top, while the air guide surface on the right side slopes from the right side of the air flow section 342 to the left side and from the bottom to the top. When the cooling airflow enters from the top of the air flow section 342, after encountering the two air guide surfaces, it can diffuse along one air guide surface toward the left side of the air flow duct and along the other air guide surface toward the right side of the air flow duct. In other words, the cooling airflow entering the air flow duct diffuses toward the left and right sides of the air flow section 342, making the cooling airflow more evenly distributed within the air flow section 342, and further making the cooling airflow flowing out of the air flow section 342 more evenly distributed at the bottom of the drawer 320.

[0228] The bottom sidewall of the end plate hood 3211 is provided with a bottom air outlet. The entrance to the cooling section 343 is located on the drawer bottom plate opposite the bottom air outlet of the end plate hood 3211. The bottom air outlet of the end plate hood 3211 and the entrance to the cooling section 343 on the drawer bottom plate may be separated by a dividing strip, thereby forming multiple corresponding openings. In some embodiments, an air guide may be provided below the entrance to the cooling section 343 to facilitate the reversal of the cooling airflow from downward to backward.

[0229] The air guide member has an air guide surface. During use of the drawer 320, the refrigerated air flows through the air section 342 and flows out from the bottom of the air flow section 342. The air guide surface of the air guide device gradually guides the refrigerated air flow downward and backward, and then the flow direction of the refrigerated air flow gradually changes from longitudinal to transverse, and finally flows to the rear of the drawer 30. Therefore, the air guide surface can guide the refrigerated air flow, gradually changing the flow direction, and preventing the refrigerated air flow from directly turning at a vertical angle on the bottom side of the air flow section 342, thereby making the refrigerated air flow flow more smoothly and preventing the air flow from accumulating at the front end of the drawer 320 and generating turbulence. The air guide surface is located in the front-to-back direction of the drawer 320, with one end located in front of the air outlet of the air flow section 342, and the other end extending to the rear of the drawer 320 and gradually transitioning downward. The air guide surface can be formed as a curved surface with the concave side facing obliquely upward.

[0230] The cold transfer section 343 is formed between the drawer bottom plate and the bottom wall of the inner barrel. The bottom section of the sealing mounting groove 3701 in the end plate fitting 370 and the bottom section of the annular sealing strip 371 are both located below the cold transfer section 343 to prevent the cooling airflow from leaking from the bottom.

[0231] The ratio of the height of the cold transfer section 343 to the height of the fresh food storage space can be set to be greater than or equal to one hundredth and less than or equal to one tenth. This helps to achieve better heat exchange efficiency between the cold air volume of the cold transfer section 343 and the fresh food storage space 330, thereby ensuring good cooling efficiency for at least the effective storage area of ​​the fresh food storage space 330.

[0232] The ratio of the height of the cooling section 343 to the air flow rate into the fresh-keeping storage container 30 can be set to be greater than or equal to one-fiftieth and less than or equal to two-fifths. The height of the cooling section 343 is measured in meters, and the air flow rate is measured in cubic meters per minute. The air flow rate into the fresh-keeping storage container 30 can be set within a range of greater than or equal to 0.02 cubic meters per minute and less than or equal to 0.5 cubic meters per minute. The height of the cooling air duct 343 is greater than or equal to 5 mm and less than or equal to 20 mm. For example, the height of the cooling section 343 is 0.005 meters, and the air flow rate is 0.25 cubic meters per minute, for a ratio of one-fiftieth. Alternatively, the height of the cooling section 343 is 0.01 meters, and the air flow rate is 0.5 cubic meters per minute, for a ratio of one-fiftieth. Alternatively, the height of the cooling section 343 is 0.008 meters, and the air flow rate is 0.02 cubic meters per minute, for a ratio of two-fifths. Alternatively, the height of the cooling section 343 is 0.02 meters, the air intake is 0.05 cubic meters per minute, and the ratio is two-fifths. Alternatively, the height of the cooling section 343 is 0.01 meters, the air intake is 0.4 cubic meters per minute, and the ratio is one-fortieth. Alternatively, the height of the cooling section 343 is 0.015 meters, the air intake is 0.3 cubic meters per minute, and the ratio is one-twentieth.

[0233] The space of the cold transfer section 343 is matched with the air intake volume, so that the cold transfer section 343 provides sufficient flow space for the cold air, which helps to ensure that the cold air flows smoothly in the cold transfer section 343.

[0234] The air volume setting range for the fresh-keeping storage container 30 is greater than or equal to 0.2 cubic meters per minute and less than or equal to 0.5 cubic meters per minute. For example, 0.1 cubic meters per minute, 0.15 cubic meters per minute, 0.2 cubic meters per minute, 0.25 cubic meters per minute, 0.35 cubic meters per minute, 0.45 cubic meters per minute, and 0.5 cubic meters per minute. The above air volume setting effectively ensures that the fresh-keeping storage container 30 has sufficient air volume, ensuring efficient cooling of the fresh-keeping storage space 330.

[0235] The gap between the drawer bottom plate 323 and the bottom wall 312 of the barrel body provides space for the drawer 320 to be pulled out and extended. Furthermore, when the drawer 320 is located inside the barrel body for storage, the gap between the drawer bottom plate 323 and the bottom wall 312 of the barrel body serves as a cooling section 343 surrounding the air duct. The cooling section 343 is located below the entire drawer bottom plate 323, and its height is set according to the capacity of the fresh-keeping storage space 330 and the cooling demand. In some embodiments, the height of the cooling section 343 can be set to 5% to 12% of the height of the fresh-keeping storage space 330, for example, 5%, 8%, 12%, etc., and can be particularly set to 8%. This reduces the longitudinal space occupied by the cooling section 343 in the fresh-keeping storage container 30, while meeting the cooling demand of the fresh-keeping storage space 330.

[0236] The airflow from the rear end of the cooling section 343 enters the gap between the drawer rear panel 322 and the barrel rear wall 313. This gap serves as the inner barrel return air section 344 (also known as the rear wall air path section). An inner barrel return air vent 346 is located in the middle of the barrel rear wall 313, and an inter-barrel return air section 345 is formed on the barrel rear wall from the inner barrel return air vent 346 to the barrel return air vent 317. The airflow ultimately flows from the inner barrel return air vent 346 through the inter-barrel return air section 345 to the barrel return air vent 317.

[0237] The inner barrel return air vents 346 can be configured to form a predetermined pattern, such as a plurality of diamond-shaped holes arranged in an aesthetically pleasing pattern. This prevents stored items from entering the inter-barrel return air section 345 and provides a pleasant visual effect to the user after the drawer 320 is pulled out. The opening area of ​​the inner barrel return air vents 346 is determined by analyzing the amount of return air. In some embodiments, the opening area of ​​the inner barrel return air vents 346 can be set to 10% to 30% of the inner barrel rear wall, for example, 10%, 20%, 30%, and more specifically 18%.

[0238] The inner barrel body 318 is provided with shielding strips 3461 on both sides of the inner barrel body return air port 346, and the heat-insulating layer 3131 between the inner barrel body rear wall and the barrel shell forms an inter-barrel return air section 345 in the area between the inner barrel body return air port 346 and the shielding strips. The cooling airflow returns from the inner barrel body return air port 346 to the barrel body return air port 317 via the return air section, completing the surrounding heat exchange within the entire fresh-keeping storage container 30. The position of the inner barrel body return air port 346 corresponds to the barrel body return air port 317 in the longitudinal direction, so that the inter-barrel return air section 345 is linear in the longitudinal direction, making the structure of the inter-barrel return air section 345 more concise and convenient for air outlet.

[0239] The inner barrel return air inlet 346 is laterally located between the air inlet 316 and the left side wall of the barrel 310. The ratio of the distance from the right end of the inner barrel return air inlet 346 to the left side wall of the barrel 310 to the left and right lateral length of the rear side wall of the barrel 310 can be set to be less than or equal to one-half. In other words, with the side wall of the left and right side walls of the barrel 310 farther from the air inlet 316 as the reference side wall, the ratio of the distance from the end of the inner barrel return air inlet 346 farther from the reference side wall to the reference side wall to the left and right lateral length of the rear side wall of the barrel 310 is less than or equal to one-half.

[0240] The ratio of the longitudinal distance from the bottom end of the inner barrel return air vent 346 to the bottom end of the inner surface of the rear sidewall of the barrel 310 to the longitudinal length of the rear sidewall of the barrel 310 can be set to be greater than or equal to one-fourth. This, on the one hand, requires the cold air to flow upward a certain distance before reaching the inner barrel return air vent 346, thereby allowing the cold air to be more fully diffused within the fresh-keeping storage space 330, thereby helping to improve cooling efficiency and cooling uniformity. On the other hand, it also reduces the length of the inter-barrel return air section 345, thereby simplifying the structure.

[0241] The ratio of the longitudinal distance from the bottom end of the inner barrel air return port 346 to the inner bottom surface of the drawer 320 to the depth of the drawer 320 is greater than or equal to one-fourth, which helps to make the cold air more fully contact the back panel of the drawer 320, thereby increasing the degree of cold air wrapping around the drawer 320, thereby improving the cooling efficiency and cooling uniformity of the effective storage area in the drawer 320.

[0242] The area of ​​the barrel body return air port 317 can be greater than or equal to the area of ​​the air inlet 316, so that the air flows more smoothly.

[0243] The ratio of the area of ​​the inner barrel return air vent 346 to the return air volume of the fresh-keeping storage container 30 can be set to be greater than or equal to 1 / 500 and less than or equal to 1 / 20. The unit of the area of ​​the inner barrel return air vent 346 is square meters, and the unit of the return air volume is cubic meters per minute. For example, it can be 1 / 500, 1 / 400, 1 / 300, 1 / 200, 1 / 100, 1 / 50, 1 / 30, 1 / 20, etc.

[0244] For example, the return air volume is 0.5 cubic meters per minute, the area of ​​the inner barrel return air port 346 is 0.001 square meters, and the ratio is one-five hundredth. Alternatively, the return air volume is 0.02 cubic meters per minute, the area of ​​the barrel return air port 346 is 0.001 square meters, and the ratio is one-twentieth. Alternatively, the return air volume is 0.4 cubic meters per minute, the area of ​​the barrel return air port 346 is 0.02 square meters, and the ratio is one-twentieth. Alternatively, the return air volume is 0.4 cubic meters per minute, the area of ​​the barrel return air port 346 is 0.01 square meters, and the ratio is one-fortieth. The above-mentioned structural dimensions can make the cold air flow more smoothly when flowing out of the fresh-keeping storage container 30 through the barrel return air port 346, avoiding the cold air from forming turbulence at the barrel return air port 346 and affecting the flow of the cold air flow.

[0245] The thickness of the inter-barrel return air section 345 can be set to be greater than or equal to 5 mm and less than or equal to 30 mm. That is, the distance between the front and rear walls of the inter-barrel return air section 345 is greater than or equal to 5 mm and less than or equal to 30 mm. For example, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, etc. By setting the thickness of the inter-barrel return air section 345 to be greater than or equal to 5 mm and less than or equal to 30 mm, the inter-barrel return air section 345 has ample space for the flow of cold air, which helps ensure that the cold air flows smoothly after entering the inter-barrel return air section 345.

[0246] The ratio of the area of ​​the inner barrel return air vent 346 to the area of ​​the rear side wall of the fresh-keeping storage space 330 can be greater than or equal to one-fiftieth and less than or equal to one-fifth. For example, it can be one-fiftieth, one-fortieth, one-thirtieth, one-twentieth, one-tenth, one-fifth, etc. For example, the area of ​​the inner barrel return air vent 346 is 0.001 square meters, and the area of ​​the rear side wall of the fresh-keeping storage space 330 is 0.05 square meters, and the ratio is one-fiftieth. Alternatively, the area of ​​the inner barrel return air vent 346 is 0.02 square meters, and the area of ​​the rear side wall of the fresh-keeping storage space 330 is 0.1 square meters, and the ratio is one-fifth. Alternatively, the area of ​​the inner barrel return air vent 346 is 0.002 square meters, and the area of ​​the rear side wall of the fresh-keeping storage space 330 is 0.04 square meters, and the ratio is one-twentieth. The above-mentioned area ratio parameters help to ensure that the cold air flow at the rear end of the fresh-keeping storage space 330 flows out smoothly from the inner barrel return air port 346, effectively preventing the cold air from accumulating at the rear end of the fresh-keeping storage space 330, thereby avoiding uneven temperature in the fresh-keeping storage space 330 and a decline in storage quality.

[0247] During the entire circulation process, the refrigerated airflow does not enter the interior of the fresh-keeping storage container 30. Through the improved design of each section of the surrounding air duct, the interior of the fresh-keeping storage space 330 is uniformly cooled, and the magnetic field is used to improve the quality of fresh-keeping storage. Actual testing of trial samples has shown that the fresh-keeping storage container 30 and refrigerator of this embodiment can significantly extend the fresh-keeping storage time of stored items. For example, the fresh-keeping time of fresh meat and fish can be extended to 5 to 7 days, greatly improving the user experience.

[0248] The second magnetic field assembly 421 is arranged below the bottom wall of the inner barrel 318. Its structure is generally consistent with that of the first magnetic field assembly 411, and it is arranged in a mirror image relative to the fresh-keeping storage space 330. In other words, the second magnetic source sheet 424 is located above the second magnetic conductive plate 423. The area where the second magnetic conductive plate 423 contacts the second magnetic source sheet 424, as well as the surface of the second magnetic source sheet 424, are also configured to have a required flatness. The smaller the flatness tolerance, the better, for example, less than 0.1mm. The two can fit tightly together, achieving a zero-gap fit, thereby improving the uniformity of the magnetic field.

[0249] Figure 51 is a schematic diagram of the bottom of the fresh-keeping storage container 30 according to one embodiment of the present application. The second magnetic conductive plate 423 extends outward around the area corresponding to the second magnetic source plate 424, forming an extension portion 4231. This extension portion 4231 abuts against the main portion of the first magnetic source plate 414, forming a stepped surface. In other words, the extension portion 4231 of the second magnetic conductive plate 423 protrudes upward relative to the second magnetic source plate 424, configured to engage with the container body and / or the magnetic field connector 431. The height of the extension portion 4231 of the second magnetic conductive plate 423 can be greater than the thickness of the second magnetic source plate 424.

[0250] At the location where the second magnetic conductive plate 423 is connected to the magnetic field connector 431, the extension 4231 may not protrude, forming a clearance gap. That is, at the location of the clearance gap, the extension 4231 is flush with the main body of the planar area of ​​the second magnetic conductive plate 423, or the protrusion height is less than that of the extension 4231 at other locations. The magnetic field connector 431 forms a flange at the bottom facing the second magnetic conductive plate 423, which is used to reliably contact the gap in the second magnetic conductive plate 423 to form a reliable magnetic connection. The flange of the magnetic field connector 431 can be fixed by screws, etc. to ensure a secure connection. The flange of the magnetic field connector 431 is also required to have a certain gap from the side of the second magnetic source plate 424 to form a magnetic gap. Using this gap, after the magnetic field connector 431 is connected to the second magnetic conductive plate 423, the magnetic field connector 431 does not affect the connection between the second magnetic conductive plate 423 and the barrel 310 in the thickness direction.

[0251] In an embodiment in which a second electromagnetic coil 425 is provided, the second electromagnetic coil 425 can be located centrally between the first magnetic source sheet 414 and the second magnetic source sheet 424, respectively. The bottom surface of the inner barrel 318 is provided with a coil receiving groove for accommodating the second electromagnetic coil 425 and a cable receiving groove for accommodating the lead-out cable of the second electromagnetic coil 425. The shape of the coil receiving groove is adapted to the outer shape of the second electromagnetic coil 425, and the groove depth of the coil receiving groove is adapted to the thickness of the second electromagnetic coil 425, ensuring that the second electromagnetic coil 425 can reliably abut against the second magnetic source sheet 424.

[0252] The second magnetic conductive plate 423 can be connected to the inner barrel body via screws 4232 and clips 4233, wherein the screw holes and the connection locations of the clips 4233 are both on the extension 4231 of the second magnetic conductive plate 423. The screws 4232 and clips 4233 ensure that the second magnetic conductive plate 423 can be reliably connected to the barrel body 310. An insulation plate can also be provided below the second magnetic conductive plate 423 (the insulation plate is hidden in the figure to show the second magnetic conductive plate 423). The lower side of the insulation plate is the bottom wall of the barrel shell (which can be a partition or a wall inside the storage compartment).

[0253] Figure 52 is a cross-sectional view of a drawer 320 of a fresh-keeping storage container 30 according to one embodiment of the present application; Figure 53 is a schematic diagram of a tray 360 within the drawer of the fresh-keeping storage container 30 according to one embodiment of the present application. Because the refrigerated airflow directly contacts the drawer bottom 322 during the cooling zone, to prevent the drawer bottom from becoming too cold, the fresh-keeping storage container 30 of this embodiment also includes a tray 360 within the drawer 320. This tray 360 is placed within the drawer 320 and serves to hold stored items. The bottom of the tray 360 is formed with multiple support portions 3601, which can be legs or support bars and project downward. The support portions 3601 contact the drawer bottom 322, creating a gap between the bottom of the tray 360 and the drawer, preventing stored items from directly contacting the drawer bottom 322 and potentially cooling them. The support portions 3601 can be located near the edge of the tray bottom.

[0254] In some embodiments, the bottom plate of the tray 360 can be configured as a concave-convex surface 3602, so that the portion of the stored items can also have a gap at the bottom of the tray. For example, the concave-convex surface 3602 of the tray bottom plate can be formed by mutually spaced ridges and grooves extending in the front-to-back direction.

[0255] The top of the side panel of the tray 360 may be provided with a flange 3603 extending outward. The side wall of the drawer may be provided with a ridge 3241 located below the flange. The height of the tray may be one-third to one-half of the overall height of the drawer, that is, the ridge 3241 is provided at a height position of one-third to one-half of the inner side wall of the drawer. The top surface of the flange 3603 may abut against the lower surface of the ridge 3241, thereby preventing the stored items from falling into the gap between the tray 360 and the drawer 320, while also ensuring that the tray 360 can be placed more stably in the drawer 320. In some other embodiments, the ridge 3241 may also be used to place shelves (not shown in the figure), which are used to further separate the fresh-keeping storage space 330, making it more convenient to place the stored items. The shelf itself may also be provided with a magnetic source component to further increase the effective magnetic field strength of the storage space.

[0256] In some embodiments, the side panels of tray 360 can be tilted, that is, gradually expanding from bottom to top. This configuration allows tray 360 to have a larger opening, making it easier to access stored items. Furthermore, tray 360 can also have a larger gap between itself and the drawer, ensuring even cooling of stored items.

[0257] One or more hand grips 3604 (for example, holes for inserting fingers into the front wall of the tray) may also be provided on the side walls of the tray 360 to facilitate the user to remove the tray from the drawer for cleaning.

[0258] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of 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 deemed to cover all such other variations or modifications.

Claims

1. A fresh-keeping storage container, characterized in that: include: The barrel body has a fresh-keeping storage space for storing stored items; The magnetic field device comprises at least one magnetic field component and is configured to form a magnetic field in the fresh-keeping storage space.

2. The fresh-keeping storage container according to claim 1, characterized in that: Each of the magnetic field components includes a magnetic source sheet and a magnetic conductive plate, wherein the magnetic conductive plate includes a planar area, and the magnetic source sheet is bonded to the planar area, wherein the flatness tolerance of the planar area is less than a set tolerance threshold, so that the magnetic source sheet as a whole is tightly bonded to the magnetic conductive plate.

3. The fresh-keeping storage container according to claim 2, characterized in that: The tolerance threshold is set to 1 mm, 0.1 mm or 0.05 mm.

4. The fresh-keeping storage container according to claim 2, characterized in that: The magnetic field device comprises a first magnetic field component and a second magnetic field component, wherein the first magnetic field component and the second magnetic field component are respectively arranged on a set of opposite side walls of the barrel; The fresh-keeping storage container also includes at least one magnetic field connector, which 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 assembly and the second magnetic field assembly are located, and is connected to the first magnetic field assembly and the second magnetic field assembly through the flanges.

5. The fresh-keeping storage container according to claim 4, characterized in that: 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.

6. The fresh-keeping storage container according to claim 5, characterized in that: 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.

7. The fresh-keeping storage container according to claim 6, characterized in that: A main plate fixing hole is opened in the middle of the main plate of the magnetic field connector, and the fixing structure includes a main plate fixing structure, which is arranged at a position on the inner barrel body corresponding to the main plate fixing hole and connected to the main plate fixing hole.

8. The fresh-keeping storage container according to claim 6, characterized in that: 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.

9. The fresh-keeping storage container according to claim 6, characterized in that: A flange fixing hole is provided on the flange, and the fixing structure further comprises 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.

10. The fresh-keeping storage container according to claim 6, characterized in that: 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.

11. The fresh-keeping storage container according to claim 4, characterized in that: The magnetic conductive plate forms extensions on both sides of the plane area; Each of the magnetic field connectors is disposed on a side wall connected to the side walls where the first magnetic field component and the second magnetic field component are located, and is connected to the extension portion, thereby achieving magnetic connectivity with the first magnetic field component and the second magnetic field component.

12. The fresh-keeping storage container according to claim 11, characterized in that: A size of a contact area between each of the magnetic field connecting members and the extension portion along an extension direction of the magnetic field connecting member is set to be greater than or equal to 1 mm and less than or equal to 10 mm.

13. The fresh-keeping storage container according to claim 12, characterized in that: One side of the flange is connected to the extension portion, and a gap is formed between an end of the flange and the magnetic source sheet.

14. The fresh-keeping storage container according to claim 12, characterized in that: The magnetic conductive plate extends outward around the plane area to form an extension portion; at least a portion of the extension portion protrudes from the plane area toward one side of the magnetic source sheet, so that at least a portion of the extension portion forms a step with the plane area; The outer periphery of the magnetic source piece and the step have a set distance.

15. The fresh-keeping storage container according to claim 14, characterized in that: The central section of the extension is flush with the planar region, thereby forming a clearance gap relative to the protruding section; and the magnetic field connection element is connected to the clearance gap section of the extension.

16. The fresh-keeping storage container according to claim 14, characterized in that: The protruding height of the protruding section of the extension portion is greater than the thickness of the magnetic source sheet.

17. The fresh-keeping storage container according to claim 2, characterized in that: The fresh-keeping storage container also includes a drawer, which is pullable and arranged in the barrel body; and the magnetic field device includes a first magnetic field component and a second magnetic field component arranged in opposite side walls of the barrel body, and the magnetic source sheets in the first magnetic field component and the second magnetic field component are close to the drawer, and the magnetic conductive sheets in the first magnetic field component and the second magnetic field component are located on the outside of the magnetic source sheets.

18. The fresh-keeping storage container according to claim 17, characterized in that: The first magnetic field component is disposed on the top of the barrel, the second magnetic field component is disposed on the bottom of the barrel, and An internal air path for cooling air flow is provided above the magnetic conductive plate of the first magnetic field assembly; The barrel body is provided with a protrusion on the top surface of the inner barrel body below the first magnetic field component, and the protrusion is used to support the magnetic source sheet of the first magnetic field component, so that there is an air gap between the magnetic source sheet of the first magnetic field component and the top surface of the inner barrel body.

19. The fresh-keeping storage container according to claim 4, characterized in that: Each of the magnetic field assemblies further comprises: The electromagnetic coil is arranged on the 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 magnetic field device is configured to form a magnetic field with an effective magnetic field strength range of 10-100GS and an effective magnetic field spacing range of 60-240mm in the fresh-keeping storage space.

20. A refrigerator, characterized in that: include: A fresh-keeping storage container according to any one of claims 1 to 9.

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