Magnetic fresh-keeping container and refrigeration equipment

Abstract

The utility model provides a magnetic fresh-keeping container and refrigeration equipment. The magnetic fresh-keeping container comprises a storage device provided with a storage space; the at least one magnetic field device is pivotally connected with the storage device and used for generating a magnetic field in the storage space, and the magnetic field device is provided with a first position covering at least part of the storage space in the first direction and a second position covering at least part of the storage space in the second direction; the rotating shaft rotates relative to the storage device and is switched between a first position and a second position, and the first direction is perpendicular to the second direction. The magnetic field device can generate a magnetic field in the storage space at the first position and the second position. Namely, the magnetic field device can enable the food materials in the storage space to be subjected to the magnetic field effect in the low-temperature storage process at the first position and the second position, the magnetic field fresh-keeping effect is achieved, the fresh-keeping effect of the food materials is improved, and more flexible magnetic field configuration can be provided.

Description

Technical Field

[0001] This utility model relates to the field of cold storage technology, and in particular to a magnetic preservation container and refrigeration equipment. Background Technology

[0002] Refrigeration equipment, a common household appliance, uses low temperatures to store food, thus extending its shelf life. While refrigeration extends shelf life, the quality of food inevitably declines after low-temperature storage. For example, various meats are prone to juice loss during storage, leading to a deterioration in taste and a darkening of color. This is especially true for certain high-end ingredients, whose quality can significantly decrease after a period of storage.

[0003] Theoretical studies have found that magnetic fields have a significant impact on ice crystal formation during freezing. Magnetic fields, to a certain extent, restrict the free path of water molecules, resulting in the breaking of hydrogen bonds within water molecule clusters. During the phase transition, crystal nucleus growth is inhibited, and the ice crystal growth rate exceeds the water molecule migration rate, producing smaller ice crystals. This leads to less damage to cells, reduced juice loss, and better preservation of the food's nutrition and flavor. Therefore, the cold storage industry is actively exploring the introduction of magnetic fields into food preservation for practical application in refrigeration equipment. Utility Model Content

[0004] One objective of this invention is to provide a magnetic preservation container and refrigeration equipment capable of achieving magnetic field preservation.

[0005] Specifically, this utility model provides a magnetic food preservation container, comprising:

[0006] Storage device, equipped with storage space; and

[0007] At least one magnetic field device, pivotally connected to the storage device, is used to generate a magnetic field in the storage space. The magnetic field device has a first position covering at least a portion of the storage space along a first direction and a second position covering at least a portion of the storage space along a second direction, and switches between the first position and the second position via rotation relative to the storage device, wherein the first direction and the second direction are perpendicular to each other.

[0008] Optionally, the magnetic preservation container includes two magnetic field devices, which are pivotally connected to the same side wall of the storage device. The two magnetic field devices in the first position are in contact with the connected side wall. The two magnetic field devices in the second position are arranged opposite to each other, such that at least part of the storage space is located between the two magnetic field devices.

[0009] Optionally, the two magnetic field devices are pivotally connected to the inner surface of the same side wall of the storage device, thereby placing the magnetic field devices inside the storage space.

[0010] Optionally, the two magnetic field devices are pivotally connected to the inner surface of the bottom sidewall of the storage device, the two magnetic field devices in the first position are in contact with the inner surface of the bottom sidewall of the storage device, and the two magnetic field devices in the second position are perpendicular to the inner surface of the bottom sidewall of the storage device.

[0011] Optionally, the two magnetic field devices are distributed along the left-right direction of the storage device, the pivot axes of the two magnetic field devices extend along the front-back direction of the storage device, and the pivot axes of the two magnetic field devices are respectively located on the side opposite to the other magnetic field device.

[0012] Optionally, the magnetic preservation container further includes a stop structure that extends between the second position and the first position of the magnetic field device, thereby preventing the magnetic field device from rotating from the second position to the first position.

[0013] Optionally, the stop structure includes:

[0014] Fasteners are fixed to the storage device;

[0015] The stop member is pivotally connected to the fixing member; and

[0016] An elastic member is used to support the stop member in a position that hinders the rotation of the magnetic field device, and is configured to be compressible by the stop member so that the stop member rotates to a position that avoids the magnetic field device.

[0017] Optionally, the magnetic poles of the two magnetic field devices located in the first position are distributed along a direction perpendicular to the side wall of the storage device, and the magnetic poles of the two magnetic field devices are arranged in opposite directions.

[0018] Optionally, the magnetic field device is a permanent magnet plate; or,

[0019] The magnetic field device includes a housing and a magnetic field generator. The magnetic field device is pivotally connected to the storage device through the housing. The magnetic field generator is used to generate a magnetic field and is disposed inside the housing.

[0020] In another aspect of this utility model, a refrigeration device is also provided, comprising:

[0021] The container is equipped with a storage room; and

[0022] According to any of the above-mentioned magnetic preservation containers, the magnetic preservation container is disposed in the storage compartment.

[0023] This invention relates to a magnetic preservation container and refrigeration equipment. By pivotally connecting a magnetic field device to a storage device, the magnetic field device can rotate relative to the storage device, allowing it to switch between a first position covering at least a portion of the storage space along a first direction and a second position covering at least a portion of the storage space along a second direction. In both the first and second positions, the magnetic field device generates a magnetic field within the storage space. This means that in both positions, the magnetic field device can subject the food within the storage space to a magnetic field during low-temperature storage, achieving a magnetic preservation effect and improving the freshness of the food. Furthermore, the ability of the magnetic field device to rotate between the first and second positions relative to the storage device changes its position and magnetic field direction, allowing users to flexibly choose the location of the magnetic field device based on their usage habits or the quantity of stored items, thus providing a more flexible magnetic field configuration.

[0024] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0025] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0026] Figure 1 This is a schematic diagram of a refrigeration device according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic isometric view of a magnetic food preservation container in one state according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic top view of a magnetic food preservation container in one state according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic cross-sectional view of a magnetic food preservation container in one state according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic isometric view of a magnetic food preservation container in another state according to one embodiment of the present invention;

[0031] Figure 6 This is a schematic top view of a magnetic food preservation container in another state according to one embodiment of the present invention;

[0032] Figure 7 This is a schematic cross-sectional view of a magnetic food preservation container in another state according to one embodiment of the present invention;

[0033] Figure 8 This is a schematic enlarged axonometric view of the stop structure in a magnetic food preservation container according to an embodiment of the present invention;

[0034] Figure 9 This is a schematic enlarged top view of the stop structure in a magnetic food preservation container according to an embodiment of the present invention;

[0035] Figure 10 This is a schematic isometric view of the magnetic field device in a magnetic food preservation container according to another embodiment of the present invention;

[0036] Figure 11 This is a schematic exploded view of the magnetic field device in a magnetic food preservation container according to another embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures;

[0038] 10. Refrigeration equipment; 100. Cabinet; 101. Storage compartment; 200. Magnetic preservation container; 210. Storage device; 211. Storage space; 220. Magnetic field device; 221. Outer shell; 2211. First shell; 2212. Second shell; 222. Magnetic field generating element; 230. Stop structure; 231. Fixing element; 232. Stopping element; 233. Elastic element. Detailed Implementation

[0039] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] like Figure 1 As shown, in one embodiment, the refrigeration device 10 includes a housing 100 and a magnetic preservation container 200. The housing 100 is provided with a storage compartment 101. The magnetic preservation container 200 is disposed in the storage compartment 101. The magnetic preservation container 200 is the magnetic preservation container described in any of the embodiments below.

[0043] Generally speaking, refrigeration equipment typically has multiple storage compartments, such as cold storage compartments, freezer compartments, variable temperature compartments, etc. Figure 1 This illustration only shows one storage compartment 101 of the refrigeration equipment. The storage compartment 101 can be any type of storage compartment that can be installed in the refrigeration equipment. For the refrigeration equipment of this application, those skilled in the art can configure the specific number, function and layout of the storage compartments according to their needs. The magnetic preservation container 200 can be installed in one or more of the storage compartments.

[0044] like Figures 2 to 7 As shown, in one embodiment, the magnetic food preservation container 200 includes a storage device 210 and two magnetic field devices 220. The storage device 210 is provided with a storage space 211. The magnetic field devices 220 are pivotally connected to the storage device 210 and are used to generate a magnetic field within the storage space 211. The magnetic field devices 220 have a first position covering at least a portion of the storage space 211 along a first direction and a second position covering at least a portion of the storage space 211 along a second direction, and switch between the first and second positions via rotation relative to the storage device 210, wherein the first and second directions are perpendicular to each other.

[0045] like Figures 2 to 7 As shown, specifically, two magnetic field devices 220 are pivotally connected to the inner surface of the bottom sidewall of the storage device 210. The two magnetic field devices 220 in the first position are in contact with the inner surface of the bottom sidewall of the storage device 210, and the two magnetic field devices 220 in the second position are perpendicular to the inner surface of the bottom sidewall of the storage device 210.

[0046] Reference Figures 2 to 7As shown, two magnetic field devices 220 are distributed along the left and right directions of the storage device 210, and the pivot axes of the two magnetic field devices 220 extend along the front and back directions of the storage device 210. The pivot axes of the two magnetic field devices 220 are respectively located on the side of themselves away from the other magnetic field device 220.

[0047] like Figures 2 to 7 As shown, the storage device 210 is a drawer, and the magnetic field device 220 is a permanent magnet plate, meaning the magnetic field device 220 is a flat, plate-like structure. Specifically, the magnetic field device 220 is a square, plate-like structure. The magnetic field device 220 is pivotally connected to the inner surface of the bottom sidewall of the storage device 210 via a hinge structure. The two magnetic field devices 220 are distributed along the left-right direction of the storage device 210, and the pivot axes of the two magnetic field devices 220 are located on the side opposite to the other magnetic field device 220. That is, the left side of the left magnetic field device 220 is pivotally connected to the storage device 210, and the right side of the right magnetic field device 220 is pivotally connected to the storage device 210.

[0048] Reference Figures 2 to 4 As shown, the two magnetic field devices 220 in the first position are both attached to the inner surface of the bottom side wall of the storage device 210, thereby covering part of the storage space 211 in an upward direction. In other words, the two plate-shaped magnetic field devices 220 can also be regarded as forming a larger plate-shaped magnetic field device that covers most of the storage space 211 from bottom to top.

[0049] Reference Figure 4 As shown, the magnetic poles of the two magnetic field devices 220 in the first position are distributed along a direction perpendicular to the side wall of the storage device 210, and the magnetic poles of the two magnetic field devices 220 are arranged in opposite directions. Specifically, the magnetic poles of both magnetic field devices 220 are distributed along the vertical direction of the storage device 210, and the magnetic field device 220 on the left side of the figure has its N pole at the top and its S pole at the bottom, while the magnetic field device 220 on the right side of the figure has its S pole at the top and its N pole at the bottom. In this way, the magnetic field lines in the storage space 211 point from the top surface of the magnetic field device 220 on the left side to the top surface of the magnetic field device 220 on the right side, concentrating the magnetic field near the two magnetic field devices 220. When the stored item is placed in the storage space 211, that is, placed above the two magnetic field devices 220, it can be affected by the magnetic field, thereby achieving low-temperature storage under the magnetic field, realizing magnetic field preservation, and improving the preservation effect.

[0050] Reference Figures 5 to 7As shown, the two magnetic field devices 220 can be rotated relative to the storage device 210 to a second position perpendicular to the inner surface of the bottom sidewall of the storage device 210. Specifically, the two magnetic field devices 220 rotate in opposite directions, with the left magnetic field device 220 rotating to the left about its left pivot axis and the right magnetic field device 220 rotating to the right about its right pivot axis. The magnetic field devices 220 in the second position are close to the left sidewall of the storage device 210 and the magnetic field devices 220 in the second position are close to the right sidewall of the storage device 210. In other words, the two magnetic field devices 220 in the second position sandwich most of the storage space 211 between them in the left-right direction.

[0051] Reference Figure 7 As shown, at this time, the magnetic poles of the two magnetic field devices 220 are distributed along the left-right direction of the storage device 210, and the magnetic poles become identical. In the diagram, the N pole of the magnetic field device 220 on the left is on the left and the S pole on the right, and the same applies to the magnetic field device 220 on the right. That is, the N pole of one magnetic field device 220 directly faces the S pole of the other magnetic field device 220, causing the magnetic field lines of the two magnetic field devices 220 to point from the right magnetic field device 220 to the left magnetic field device 220, resulting in a uniform magnetic field distribution throughout the storage space 211 between the two magnetic field devices 220. When the stored item is placed in the storage space 211, that is, between the two magnetic field devices 220, it will be affected by the magnetic field, thereby achieving low-temperature storage under magnetic field conditions, achieving magnetic field preservation, and improving the preservation effect.

[0052] In this embodiment, by pivotally connecting the magnetic field device 220 to the storage device 210, the magnetic field device 220 can rotate relative to the storage device 210, thereby switching between a first position covering at least a portion of the storage space 211 along a first direction and a second position covering at least a portion of the storage space 211 along a second direction. In both the first and second positions, the magnetic field device 220 can generate a magnetic field within the storage space 211. That is, in both the first and second positions, the magnetic field device 220 can subject the food in the storage space 211 to a magnetic field during low-temperature storage, achieving a magnetic field preservation effect and improving the food's freshness. Furthermore, the magnetic field device 220 can switch between the first and second positions by rotating relative to the storage device 210, thus changing its position and magnetic field direction relative to the storage space 211. This allows users to flexibly choose the usage position of the magnetic field device 220 according to their usage habits or the amount of food stored, thereby improving the flexibility of the magnetic field configuration.

[0053] Referring to the above embodiments, for example, when the number of stored items decreases, the two magnetic field devices 220 can be positioned in a first position, allowing the stored items to be laid flat on the magnetic field devices 220, so that the magnetic field generated by the magnetic field devices 220 is concentrated in the storage area. When there are many storage items stacked together, the two magnetic field devices 220 can be positioned in a second position, so that all stored items can be subjected to a uniform magnetic field.

[0054] It should be noted that in some other embodiments, the two magnetic field devices can also be disposed on other side walls of the storage device, such as the inner surface of the left or right side wall of the storage device. The two magnetic field devices in the first position are in contact with the inner surface of the left or right side wall; the two magnetic field devices in the second position are disposed opposite to each other along the front-back direction of the storage device, such that at least part of the storage space is located between the two magnetic field devices. The two magnetic field devices in the first position are suitable for users who prefer to place stored items together on the same side, while the two magnetic field devices in the second position are suitable for users who prefer to place stored items in a dispersed manner.

[0055] In other words, the two magnetic field devices can be pivotally connected to the same side wall of the storage device. The two magnetic field devices in the first position are in contact with the connected side wall; the two magnetic field devices in the second position are arranged opposite each other, such that at least part of the storage space is located between the two magnetic field devices. Through this structure, and by distributing the magnetic poles of the two magnetic field devices in the first position along a direction perpendicular to the side wall of the storage device, and arranging the magnetic poles of the two magnetic field devices in opposite directions, the two magnetic field devices in the first position can concentrate the magnetic field near themselves, while the two magnetic field devices in the second position allow the magnetic field to be evenly distributed in the storage space between them. This ensures that the magnetic field devices in each state can generate a suitable and sufficient magnetic field, guaranteeing the magnetic field preservation effect.

[0056] In addition, by pivotally connecting the magnetic field device 220 to the inner surface of the bottom sidewall of the storage device 210, the two magnetic field devices 220 in the first position are attached to the inner surface of the bottom sidewall of the storage device 210, and the two magnetic field devices 220 in the second position are perpendicular to the inner surface of the bottom sidewall of the storage device 210. Since the bottom surface area of ​​the storage device of the refrigeration equipment is generally the largest, by making the two magnetic field devices 220 in the first position attached to the inner surface of the bottom sidewall of the storage device 210, the two magnetic field devices 220 can achieve the maximum coverage of the storage space 211, which is suitable for most usage scenarios.

[0057] It should be noted that in some other embodiments, the magnetic field device may also be pivotally connected to the inner surface of other side walls of the storage device. That is, two magnetic field devices may be pivotally connected to the inner surface of the same side wall of the storage device, thereby placing the magnetic field device inside the storage space. Placing the magnetic field device inside the storage device brings it closer to the stored items, improving the utilization rate of the magnetic field.

[0058] It should be noted that in some other embodiments, the magnetic field device may also be disposed on the outer surface of the side wall of the storage device. For example, two magnetic field devices may be disposed on the outer surface of the bottom side wall of the storage device, and may be rotated to the outer surfaces of the left and right side walls of the storage device, respectively.

[0059] Furthermore, by distributing the two magnetic field devices 220 along the left-right direction of the storage device 210, with the pivot axis of the two magnetic field devices 220 extending along the front-back direction of the storage device 210, and with the pivot axis of each magnetic field device 220 located on a side opposite to the other magnetic field device 220, the two magnetic field devices 220 can be rotated from the front end of the storage device 210 without having to completely remove the storage device 210, making the operation more convenient.

[0060] It should be noted that in some other embodiments, only one magnetic field device may be provided. Similarly, a magnetic field device may be provided on the inner or outer surface of any side wall of the storage device.

[0061] It should be noted that in some other embodiments, the storage device may also have other structures, such as a box-shaped structure with only a front opening.

[0062] like Figures 2 to 9 As shown, the magnetic food preservation container 200 also includes a stop structure 230, which extends between the second position and the first position of the magnetic field device 220 to prevent the magnetic field device 220 from rotating from the second position to the first position.

[0063] like Figures 2 to 9 As shown, specifically, the stop structure 230 includes a fixing member 231, a stop member 232, and an elastic member 233. The fixing member 231 is fixed to the storage device 210. The stop member 232 is pivotally connected to the fixing member 231. The elastic member 233 is used to support the stop member 232 in a position that hinders the rotation of the magnetic field device 220, and is configured to be compressible by the stop member 232 so that the stop member 232 rotates to a position that avoids the magnetic field device 220.

[0064] Reference Figures 2 to 9As shown, the fixing member 231 is fixed to the inner surface of the rear side wall of the storage device 210, and the stop member 232 is pivotally connected to the fixing member 231 via a longitudinal pivot axis. The elastic member 233 is a spring, which is disposed between the stop member 232 and the inner surface of the rear side wall of the storage device 210, and can extend and retract in the front-rear direction of the storage device 210. The elastic member 233 can support the stop member 232 at the position where it obstructs the magnetic field device 220.

[0065] like Figure 5 and Figure 8 As shown, when the magnetic field device 220, which is in the second position (perpendicular to the inner surface of the bottom sidewall of the storage device 210), rotates towards the first position, it will be blocked by the stop member 232. Figure 8 For example, the rotation of the magnetic field device 220 to the left is blocked by the stop 232. When the magnetic field device 220 rotates from the first position to the second position, when it encounters the stop 232, it can compress the stop 232, causing the stop 232 to compress the elastic member 233, thus allowing the magnetic field device 220 to pass over the stop 232 and reach the second position. Then, under the elastic force of the elastic member 233, the stop 232 returns to the position that hinders the rotation of the magnetic field device 220.

[0066] In this embodiment, by providing a stop 232 to prevent the magnetic field device 220 in the second position from rotating to the first position, it helps to maintain the magnetic field device 220 in the second position and prevents it from tipping over. Furthermore, by providing an elastic member 233, the stop 232 can compress the elastic member 233 and rotate to a position away from the magnetic field device 220. This eliminates the need for manual operation of the stop 232 during the rotation of the magnetic field device 220 from the first position to the second position, improving ease of use.

[0067] It should be noted that in some other embodiments, the stop structure may not be provided with an elastic element, and the position of the stop structure may be manually adjusted each time the position of the magnetic field device is changed.

[0068] like Figure 10 and Figure 11 As shown, in one embodiment, the magnetic field device 220 may also include a housing 221 and a magnetic field generator 222. The magnetic field device 220 is pivotally connected to the storage device through the housing 221. The magnetic field generator 222 is used to generate a magnetic field and is disposed inside the housing 221.

[0069] Reference Figure 10 and Figure 11As shown, specifically, the magnetic field generator 222 is a permanent magnet sheet, and the outer shell 221 includes a first shell 2211 and a second shell 2212. The first shell 2211 and the second shell 2212 are fastened together to hold the permanent magnet sheet between them. The assembled magnetic field device 220 is plate-shaped as a whole.

[0070] In this embodiment, a magnetic field device 220 is constructed by using a housing 221 and a magnetic field generator 222. The magnetic field generator 222 is disposed inside the housing 221 and can generate a magnetic field. The magnetic field device 220 is pivotally connected to the storage device through the housing 221. In addition to achieving the effects described in the previous embodiment, the housing 221 can protect the magnetic field generator 222 and extend the functional life of the magnetic field device 220.

[0071] It should be noted that in some other embodiments, the magnetic field generator may also be an electromagnetic coil or a permanent magnet sheet and an electromagnetic coil.

[0072] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can 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 recognized as covering all such other variations or modifications.

Claims

1. A magnetic fresh-keeping container, characterized in that, The magnetic fresh-keeping container comprises: a storage device provided with a storage space; and at least one magnetic field device pivotally connected with the storage device, used for generating a magnetic field in the storage space, the magnetic field device having a first position covering at least part of the storage space along a first direction and a second position covering at least part of the storage space along a second direction, and being switched between the first position and the second position via rotation relative to the storage device, the first direction being perpendicular to the second direction.

2. The magnetic fresh-keeping container according to claim 1, wherein the magnetic fresh-keeping container comprises two magnetic field devices pivotally connected with the same side wall of the storage device, the two magnetic field devices in the first position being attached to the connected side wall; the two magnetic field devices in the second position being oppositely arranged so that at least part of the storage space is located between the two magnetic field devices.

3. The magnetic fresh-keeping container according to claim 2, wherein the two magnetic field devices are pivotally connected with the inner surface of the same side wall of the storage device, so that the magnetic field devices are arranged inside the storage space.

4. The magnetic fresh-keeping container according to claim 3, wherein the two magnetic field devices are pivotally connected with the inner surface of the bottom side wall of the storage device, the two magnetic field devices in the first position being attached to the inner surface of the bottom side wall of the storage device, and the two magnetic field devices in the second position being perpendicular to the inner surface of the bottom side wall of the storage device.

5. The magnetic fresh-keeping container according to claim 4, wherein the two magnetic field devices are distributed along the left-right direction of the storage device, the pivot axes of the two magnetic field devices extending along the front-rear direction of the storage device, and the pivot axes of the two magnetic field devices being respectively located on the side away from the other magnetic field device.

6. The magnetic fresh-keeping container according to claim 4, wherein the magnetic fresh-keeping container further comprises a stop structure used for extending between the second position and the first position of the magnetic field device, so as to hinder the rotation of the magnetic field device from the second position to the first position.

7. The magnetic fresh-keeping container according to claim 6, wherein the stop structure comprises: a fixed part fixed to the storage device; a stop part pivotally connected with the fixed part; and a resilient part used for supporting the stop part in a position hindering the rotation of the magnetic field device, and configured to be compressed by the stop part so as to rotate the stop part to a position avoiding the magnetic field device.

8. The magnetic fresh-keeping container according to claim 2, wherein the magnetic poles of the two magnetic field devices in the first position are distributed along a direction perpendicular to the side wall of the storage device, and the magnetic poles of the two magnetic field devices are arranged to be opposite.

9. The magnetic fresh-keeping container according to claim 1, wherein the magnetic field device is a permanent magnet plate; or The magnetic field device comprises a housing and a magnetic field generating element, the magnetic field device is pivotally connected with the storage device through the housing, and the magnetic field generating element is used for generating a magnetic field, and the magnetic field generating element is arranged in the housing.

10. A refrigeration appliance characterized in that, Comprise: a box body provided with a storage compartment; and The magnetic fresh-keeping container according to any one of claims 1 to 9 is arranged in the storage compartment.

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