Magnetic field-based fresh-keeping container and refrigerator

Abstract

The present application provides a magnetic field-based fresh-keeping container and a refrigerator. The magnetic field-based fresh-keeping container comprises: a compartment body, provided with a magnetic fresh-keeping space; and a magnetic field generation module, arranged on at least one side wall of the compartment body. The magnetic field generation module comprises a plurality of permanent magnet pieces; and a positioning structure, provided with a plurality of mounting areas, the permanent magnet pieces having one-to-one correspondence with the mounting areas. The plurality of permanent magnet pieces generate a magnetic field in the magnetic fresh-keeping space, thereby improving the uniformity of the magnetic field in the magnetic fresh-keeping space and improving the fresh-keeping effect. The plurality of mounting areas of the positioning structure can position relative positions between the plurality of permanent magnet pieces, thereby ensuring a better magnetic field effect.

Description

Magnetic field preservation container and refrigerator

[0001] The present application is based on and claims priority to Chinese Patent Application No. 202421970466.X, filed on August 14, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of cold storage, in particular to a magnetic field preservation container and a refrigerator. BACKGROUND

[0003] As a common household appliance, a refrigerator can store foodstuffs at low temperature to prolong the storage period of the foodstuffs. Although the refrigerator prolongs the storage period of the foodstuffs, the quality of the foodstuffs stored at low temperature inevitably decreases. With continuous research, it is found that a magnetic field has a good auxiliary effect on the low-temperature storage of foodstuffs, which not only further prolongs the storage period of the foodstuffs, but also helps to maintain the freshness of the foodstuffs for a longer storage time. Therefore, the field of refrigerators is also actively exploring the introduction of a magnetic field into a refrigerator to achieve low-temperature storage under a magnetic field.

[0004] Any prior art mentioned in the specification does not mean that it is recognized or suggested that the prior art constitutes part of the common general knowledge in any jurisdiction, or can be reasonably expected to be understood, considered relevant and / or combined with other prior art by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a magnetic field preservation container and a refrigerator that can make the magnetic field more uniform.

[0006] To achieve one of the above purposes, an embodiment of the present application provides a magnetic field preservation container, comprising:

[0007] a barrel body, forming a magnetic preservation space;

[0008] a magnetic field generation module, disposed on at least one side wall of the barrel body, to generate a magnetic field in the magnetic preservation space, the magnetic field generation module comprising a plurality of permanent magnets; and

[0009] a positioning structure, forming a plurality of mounting areas, the permanent magnets and the mounting areas corresponding one by one to position the relative positions between the plurality of permanent magnets.

[0010] As an embodiment of the present application, the positioning structure is a mounting bracket, and the mounting bracket has a plurality of mounting areas formed in a hollow manner.

[0011] As an embodiment of the present application, the magnetic field generating module further comprises a magnetizing plate, which is arranged on the side of the permanent magnet away from the barrel.

[0012] As an embodiment of the present application, the side of the magnetizing plate facing the permanent magnet is formed with a pressing groove, and the mounting bracket and the permanent magnet are arranged in the pressing groove.

[0013] As an embodiment of the present application, the edge of the mounting bracket is provided with a positioning protrusion, and the edge of the magnetizing plate is provided with a positioning notch corresponding to the positioning protrusion, and the positioning protrusion extends into the positioning notch to determine the mounting direction of the mounting bracket relative to the magnetizing plate.

[0014] As an embodiment of the present application, the positioning structure is a mounting plate, and the mounting plate is formed with a plurality of recesses as the mounting areas.

[0015] As an embodiment of the present application, the positioning structure is the side wall of the barrel, and the side wall of the barrel is formed with a plurality of mounting grooves as the mounting areas.

[0016] As an embodiment of the present application, the positioning structure is a plastic sealing film, and the plastic sealing film is formed with a plurality of mounting cavities as the mounting areas.

[0017] As an embodiment of the present application, the positioning structure is fixedly connected with the permanent magnet, so that the positioning structure and the permanent magnet form an integral whole.

[0018] As an embodiment of the present application, the permanent magnet is in the shape of a square missing one corner, and the shape of the mounting area is the same as that of the permanent magnet, so as to indicate the assembly direction of the corner missing part of the permanent magnet.

[0019] As an embodiment of the present application, the barrel comprises an upper shell and a lower shell, and the upper shell and the lower shell are longitudinally spliced to form the outer side wall of the barrel.

[0020] As an embodiment of the present application, the upper shell and the lower shell are connected by a clamping structure.

[0021] As an embodiment of the present application, the magnetic field preservation container comprises two magnetic field generating modules, and the two magnetic field generating modules are arranged on opposite sides of the magnetic preservation space and connected by a magnetic conducting connector.

[0022] As an embodiment of the present application, the magnetic field fresh-keeping container further comprises a drawer, a top heat preservation layer, a side heat preservation layer, and a back heat preservation layer. The top heat preservation layer is arranged outside the top wall of the magnetic fresh-keeping space. The side heat preservation layer is arranged outside the left side wall of the magnetic fresh-keeping space. The back heat preservation layer is arranged outside the back side wall of the magnetic fresh-keeping space. The front end of the magnetic fresh-keeping space is open, so that the drawer is arranged in the magnetic fresh-keeping space in a pullable manner.

[0023] The present application also provides a refrigerator comprising a cabinet and the aforementioned magnetic field fresh-keeping container. The cabinet is formed with a cold storage compartment. The magnetic field fresh-keeping container is arranged in the cold storage compartment.

[0024] The magnetic field fresh-keeping container and the refrigerator of the present application form a magnetic fresh-keeping space in the magnetic field fresh-keeping container, and generate a magnetic field in the magnetic fresh-keeping space by using a magnetic field generating module. The magnetic fresh-keeping space can realize magnetic field fresh-keeping storage of food materials. The magnetic field not only helps the food materials to maintain supercooling at a lower temperature, but also has a certain sterilization effect, thereby helping to improve the fresh-keeping effect of the stored food materials. By arranging multiple permanent magnets and positioning structures, on the one hand, the multiple permanent magnets can generate a magnetic field in the magnetic fresh-keeping space, that is, the same permanent magnet can generate a magnetic field at different positions in the magnetic fresh-keeping space, thereby helping to improve the uniformity of the magnetic field in the magnetic fresh-keeping space and improve the fresh-keeping effect. On the other hand, the multiple mounting areas of the positioning structure can position the relative positions of the multiple permanent magnets, which not only facilitates the installation of the multiple permanent magnets, but also ensures that the spacing of the multiple permanent magnets after installation meets the preset requirements, thereby ensuring a good magnetic field effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] FIG. 1 is a schematic view of a refrigerator according to an embodiment of the present application;

[0026] FIG. 2 is an exploded view of a magnetic field fresh-keeping container according to the present application;

[0027] FIG. 3 is an assembled view of the magnetic field fresh-keeping container according to the present application;

[0028] FIG. 4 is a schematic view of the magnetic field fresh-keeping container shown in FIG. 3 from another perspective;

[0029] FIG. 5 is a schematic cross-sectional view of the magnetic field fresh-keeping container shown in FIG. 3;

[0030] FIG. 6 is a schematic view of the connection between a magnetic field generating module and a magnetic conductive connector in the magnetic field fresh-keeping container according to the present application;

[0031] FIG. 7 is a schematic exploded view of a barrel of the magnetic field fresh-keeping container according to the present application;

[0032] FIG. 8 is an assembled view of the barrel of the magnetic field fresh-keeping container according to the present application;

[0033] Fig. 9 is a view of the tub from another perspective of the magnetic field storage container shown in Fig. 8;

[0034] Fig. 10 is a partial view of the tub at the joint of the magnetic field storage container of the present application;

[0035] Fig. 11 is an exploded view of the first embodiment of the magnetic field generating module and the positioning structure of the magnetic field storage container of the present application;

[0036] Fig. 12 is a view of the permanent magnet of the magnetic field storage container of the present application;

[0037] Fig. 13 is a partial enlarged view of the positioning structure of the magnetic field storage container shown in Fig. 11;

[0038] Fig. 14 is a view of the second embodiment of the positioning structure of the magnetic field storage container of the present application;

[0039] Fig. 15 is a view of the third embodiment of the positioning structure of the magnetic field storage container of the present application. DETAILED DESCRIPTION

[0040] The present application will be described in detail below with reference to the embodiments shown in the drawings. However, the embodiments are not intended to limit the present application, and any changes in structure, method, or function made by those skilled in the art based on the embodiments are included in the scope of the present application.

[0041] The terms for indicating spatial relative positions such as "upper", "lower", "left", "right", "front", "back", etc. used herein are for the purpose of facilitating the description to describe the relationship of one feature relative to another feature as shown in the drawings. It can be understood that the terms for indicating spatial relative positions can be intended to include different orientations other than the orientations shown in the drawings, and should not be construed as limiting the claims. In addition, the description word "horizontal" used herein is not completely equivalent to along the direction perpendicular to the direction of gravity, and a certain angle of inclination is allowed.

[0042] As shown in Fig. 1, in one embodiment, the refrigerator 10 includes a cabinet 100 and a magnetic field storage container 200 in any of the embodiments described below. A cold storage compartment 101 is formed in the cabinet 100. The magnetic field storage container 200 is arranged in the cold storage compartment 101.

[0043] It should be noted that the cold storage compartment of the refrigerator is usually multiple, which is used to achieve different functions. For example, a refrigeration compartment, a freezing compartment, a variable temperature compartment, etc. The number and function of the specific cold storage compartment can be configured according to the pre-requisite. The magnetic field storage container can be arranged in any cold storage compartment. The refrigerator shown in Fig. 1 is only an example, and those skilled in the art can configure the number, function and layout of the specific cold storage compartment according to the requirement.

[0044] In addition, the refrigerator of the present embodiment is an air-cooled refrigerator. A refrigeration space and an air path system are arranged in the cabinet. A fan and a heat exchanger (evaporator) are arranged in the refrigeration space. The fan is used to send cold air, which has been cooled by the heat exchanger, to the cold storage compartment through the air outlet of the cabinet, and then return to the refrigeration space through the air return port of the cabinet, so as to achieve circulating air refrigeration. Since the cabinet, the door body, and the refrigeration system of such a refrigerator are known to those skilled in the art and easy to implement, the cabinet, the door body, and the refrigeration system are not described in detail below.

[0045] As shown in FIGS. 2-6, the magnetic field preservation container 200 includes a barrel 210 and a magnetic field generating module 260. In an embodiment, the magnetic field preservation container 200 further includes a drawer 220, a top thermal insulation layer 230, a side thermal insulation layer 240, and a rear thermal insulation layer 250.

[0046] As shown in FIGS. 2 and 3, the barrel 210 forms a magnetic preservation space 201 with a front end opening. The drawer 220 is arranged in the magnetic preservation space 201 in a pullable manner, and the drawer 220 is used to store stored objects. In other words, the drawer 220 can be pulled out of the magnetic preservation space 201 or retracted into the magnetic preservation space 201 through the front end opening of the magnetic preservation space 201. When the drawer 220 is retracted into the magnetic preservation space 201, the front panel of the drawer 220 covers and seals the front end opening of the barrel 210.

[0047] As shown in FIGS. 2-4, the barrel 210 forms two compartments distributed left and right and having front end openings, one of which is the magnetic preservation space 201, and the other of which is a normal refrigeration compartment 202. In an embodiment, the left compartment is the magnetic preservation space 201, and the right compartment is the normal refrigeration compartment 202. The normal refrigeration compartment 202 communicates with the cold storage compartment 101 of the refrigerator 10, that is, achieves the same refrigeration effect as other areas of the cold storage compartment 101.

[0048] Referring to FIGS. 2-5, the magnetic preservation space 201 is used to achieve magnetic field storage of food materials and has a separate temperature requirement, so it is separately refrigerated and thermally insulated from the outside. Specifically, for the separate refrigeration of the magnetic preservation space 201, the magnetic field preservation container 200 forms a cold air circuit for refrigerating the magnetic preservation space 201. The cold air circuit is connected to the air outlet and the air return port of the refrigerator cabinet, so that the cold air generated by the refrigerator refrigeration space can enter the cold air circuit and return to the refrigeration space after flowing through the cold air circuit, thereby completing the circulating refrigeration of the magnetic preservation space 201.

[0049] For the temperature insulation structure of the magnetic fresh-keeping space 201, firstly, a thermal insulation layer is arranged between the magnetic fresh-keeping space 201 and the common refrigeration compartment 202 to play a temperature insulation effect between the magnetic fresh-keeping space 201 and the common refrigeration compartment 202, in other words, the magnetic fresh-keeping space 201 and the common refrigeration compartment 202 share a side wall with a temperature insulation effect (constituting the right side wall of the magnetic fresh-keeping space 201). In addition, the top thermal insulation layer 230 is arranged outside the top wall of the magnetic fresh-keeping space 201, the side thermal insulation layer 240 is arranged outside the left side wall of the magnetic fresh-keeping space 201, and the rear thermal insulation layer 250 is arranged outside the rear side wall of the magnetic fresh-keeping space 201, thereby playing a temperature insulation effect between the magnetic fresh-keeping space 201 and the cold storage compartment 101.

[0050] It should be noted that the outside of the bottom side wall of the magnetic fresh-keeping space is also provided with a bottom thermal insulation layer. However, in other embodiments, because the bottom side wall of the barrel body can be well fitted to the box wall, the bottom thermal insulation layer can also not be arranged.

[0051] In addition, in other embodiments, the magnetic field fresh-keeping container can also have only one magnetic fresh-keeping space, and the two side walls can be provided with thermal insulation layers, or one side wall can be fitted to the box wall, so that the thermal insulation layer is arranged only on one side wall.

[0052] As shown in FIGS. 2 to 6, the magnetic field fresh-keeping container 200 includes two magnetic field generating modules 260, which are arranged on opposite sides of the magnetic fresh-keeping space 201 to generate a magnetic field inside the magnetic fresh-keeping space 201. Specifically, the two magnetic field generating modules 260 are arranged on the top side and the bottom side of the magnetic fresh-keeping space 201. In addition, the magnetic field fresh-keeping container 200 also includes two magnetic conductive connectors 270. The two magnetic conductive connectors 270 are arranged on opposite sides (left side and right side) of the magnetic fresh-keeping space 201, and each magnetic conductive connector 270 is used to connect the two magnetic field generating modules 260.

[0053] In other embodiments, the two magnetic field generating modules can also be arranged on the left side and the right side or the front side and the rear side of the magnetic fresh-keeping space. Alternatively, in other embodiments, the magnetic conductive connector can also not be arranged. In addition, in other embodiments, only one magnetic field generating module can be arranged, and the magnetic field generating module is arranged on one side of the magnetic fresh-keeping space.

[0054] In this embodiment, by forming the magnetic fresh-keeping space 201 which is separately refrigerated and temperature-insulated in the magnetic field fresh-keeping container 200, and generating a magnetic field in the magnetic fresh-keeping space 201 by using the magnetic field generating module 260, the inside of the magnetic fresh-keeping space 201 can have a different storage temperature from the cold storage compartment of the refrigerator, so as to realize the magnetic field fresh-keeping storage of food materials. The magnetic field not only helps the food materials to maintain supercooling at a lower temperature, but also has a certain sterilization effect, thereby helping to improve the fresh-keeping effect of the stored food materials.

[0055] By setting the magnetic conductive connecting piece 270, the magnetic field generated by the magnetic field generating module 260 can be guided and concentrated, which helps to concentrate the magnetic field generated by the magnetic field generating module 260 in the magnetic preservation space 201 and distribute more uniformly in the magnetic preservation space 201.

[0056] The structure of the magnetic field preservation container 200 will be further described in detail below with reference to the accompanying drawings.

[0057] As shown in FIGS. 7-9, in some embodiments, the barrel 210 includes an upper shell 2101 and a lower shell 2102, which are longitudinally spliced to form the outer side wall of the barrel 210. Specifically, the top wall of the barrel 210 is formed by the upper shell 2101, and the bottom wall of the barrel 210 is formed by the lower shell 2102. In addition, the upper shell 2101 and the lower shell 2102 jointly form the left side wall, the right side wall, and the rear side wall of the barrel 210.

[0058] By setting the barrel 210 to have a structure spliced by the upper shell 2101 and the lower shell 2102, the components inside the barrel 210 can be installed first during production, and then the upper shell 2101 and the lower shell 2102 can be spliced, thereby facilitating the production and assembly of the barrel 210. In addition, during subsequent maintenance, the upper shell 2101 and the lower shell 2102 can be disassembled to maintain the inside of the barrel 210, thereby facilitating the maintenance of the barrel 210.

[0059] In other embodiments, the barrel can also be a one-piece structure, that is, the entire outer side wall of the barrel is a one-piece structure.

[0060] As shown in FIGS. 7-10, the upper shell 2101 and the lower shell 2102 are connected by a clamping structure. Specifically, the upper shell 2101 is provided with a clasp 2103, and the lower shell 2102 is provided with a clamping protrusion 2104, and the clasp 2103 is clamped to the clamping protrusion 2104 to achieve the connection between the upper shell 2101 and the lower shell 2102.

[0061] Referring to FIGS. 2-6 and 11, the magnetic field generating module 260 at the top side of the magnetic preservation space 201 is arranged between the top heat preservation layer 230 and the top wall of the barrel 210, and the magnetic field generating module 260 at the bottom side of the magnetic preservation space 201 is arranged outside the bottom wall of the barrel 210. Taking one magnetic field generating module 260 as an example, the magnetic field generating module 260 includes a plurality of permanent magnet pieces 261. The magnetic field preservation container 200 further includes a positioning structure 280, which is formed with a plurality of mounting areas 281, and the permanent magnet pieces 261 and the mounting areas 281 correspond one-to-one to position the relative positions between the plurality of permanent magnet pieces 261.

[0062] Referring to FIGS. 2-6 and 11, the positioning structure 280 is a mounting bracket having a plurality of mounting areas 281 formed by being hollowed out. In an embodiment, the mounting bracket is formed by hollowing out a plurality of through holes in a plate, the through holes having the same shape as the permanent magnetic sheets 261. The number of the mounting areas 281 is the same as the number of the permanent magnetic sheets 261, and each of the permanent magnetic sheets 261 can be mounted in one of the mounting areas 281.

[0063] By providing the plurality of permanent magnetic sheets 261 and the positioning structure 280, on the one hand, the plurality of permanent magnetic sheets 261 can be used to generate magnetic fields in the magnetic preservation space 201, i.e., the same permanent magnetic sheet 261 can be used to generate magnetic fields at different positions in the magnetic preservation space 201, thereby helping to improve the uniformity of the magnetic fields in the magnetic preservation space 201 and improve the preservation effect. On the other hand, the plurality of mounting areas 281 of the positioning structure 280 can position the relative positions of the plurality of permanent magnetic sheets 261, which not only facilitates the mounting of the plurality of permanent magnetic sheets 261, but also ensures that the spacing of the plurality of permanent magnetic sheets 261 after mounting meets the predetermined requirements, thereby ensuring a good magnetic field effect.

[0064] As shown in FIGS. 2 and 11, in some embodiments, the magnetic field generating module 260 further includes a magnetic uniformity plate 262, which is disposed on the side of all the permanent magnetic sheets 261 away from the tub 210. In other words, the magnetic uniformity plate 262 covers all the permanent magnetic sheets 261 in the direction facing the tub 210. By providing the magnetic uniformity plate 262, the magnetic fields generated by the permanent magnetic sheets 261 can be guided, thereby improving the uniformity of the magnetic fields generated by the permanent magnetic sheets 261 in the magnetic preservation space 201.

[0065] As shown in FIG. 11, the side of the magnetic uniformity plate 262 facing the permanent magnetic sheets 261 is formed with a pressing groove 2621. The mounting bracket and the permanent magnetic sheets 261 are disposed in the pressing groove 2621. The edge of the mounting bracket (the positioning structure 280 in the figure) is provided with a positioning protrusion 282, and the edge of the magnetic uniformity plate 262 is provided with a positioning notch 2622 corresponding to the positioning protrusion 282, and the positioning protrusion 282 extends into the positioning notch 2622 to determine the mounting direction of the mounting bracket relative to the magnetic uniformity plate 262.

[0066] As shown in FIG. 11, in an embodiment, the positioning protrusion 282 is formed at the edge of the mounting bracket and deviates from the center axis, and correspondingly, the positioning notch 2622 is formed at the edge of the magnetic uniformity plate 262 and deviates from the center axis, so that the mounting direction of the mounting bracket can be positioned by the cooperation of the positioning protrusion 282 and the positioning notch 2622.

[0067] By setting the pressing groove 2621 on the uniform magnetic plate 262, and setting the positioning protrusion 282 on the mounting bracket, and setting the positioning notch 2622 on the uniform magnetic plate 262, the mounting bracket and the permanent magnet sheet 261 can be placed in the pressing groove 2621, which can play a positioning role for the cooperation between the mounting bracket, the permanent magnet sheet 261 and the uniform magnetic plate 262, and also helps to improve the stability after assembly. The positioning protrusion 282 and the positioning notch 2622 can also play a positioning role for the mounting bracket, which is more convenient for installation.

[0068] As shown in FIGS. 11-13, the permanent magnet sheet 261 is in the shape of a square missing one corner, and the shape of the mounting area 281 is the same as that of the permanent magnet sheet 261, to indicate the assembly direction of the missing corner part of the permanent magnet sheet 261. That is, the shape of the missing corner square makes the permanent magnet sheet 261 and the mounting area 281 have only a unique assembly relationship.

[0069] By making the permanent magnet sheet 261 in the shape of a square missing one corner, and making the shape of the mounting area 281 the same as that of the permanent magnet sheet 261, so that the permanent magnet sheet 261 and the mounting area 281 have only a unique assembly relationship, thus, after all the permanent magnet sheets 261 are installed in place, it can be ensured that the magnetic field directions of all the permanent magnet sheets 261 are consistent, thereby ensuring that all the permanent magnet sheets 261 generate correct magnetic fields.

[0070] In the present embodiment, the permanent magnet sheet can be a right-angled square or a rounded square.

[0071] As shown in FIGS. 2-5, the cold air circuit for refrigerating the magnetic fresh-keeping space 201 surrounds the inside space of the drawer 220, which includes a top section 203 located at the top side of the inside space of the drawer 220, a front section 204 located at the front side of the inside space of the drawer 220, and a bottom section 205 located at the bottom of the inside space of the drawer 220.

[0072] Referring to FIGS. 2-5, the top section 203 is formed between the top heat preservation layer 230 and the magnetic field generating module 260. In an embodiment, the top heat preservation layer 230 and the uniform magnetic plate 262 of the magnetic field generating module 260 jointly enclose the top section 203. In addition, the magnetic field fresh-keeping container 200 is formed with an air inlet 206 communicating with the top section 203. The air inlet 206 is docked with the air outlet of the refrigeration space of the refrigerator body, so that the cold air generated by the refrigeration space can enter the top section 203 through the air inlet 206.

[0073] Referring to FIGS. 2-5, the front section 204 is formed inside the front panel of the drawer 220. In an embodiment, the front panel of the drawer 220 has a thicker and hollow portion for forming the front section 204. In addition, the top of the front section 204 has an opening, and the front end of the top section 203 has an opening, and the cold air flow in the top section 203 flows to the top opening of the front section 204 via the front end opening, and then enters the front section 204.

[0074] Referring to FIGS. 2-5, when the drawer 220 is in a closed state, the bottom section 205 is formed between the bottom wall of the drawer 220 and the inner bottom wall of the barrel 210. The bottom of the front section 204 has an opening, and the cold air flow in the front section 204 flows into the bottom section 205 via the bottom opening, that is, into the magnetic preservation space 201.

[0075] Referring to FIGS. 2-5 and FIG. 9, the rear side wall of the barrel 210 is provided with a wind passage hole 2105, and the cold air flow entering the bottom section 205 flows from front to back, and after flowing to the rear of the magnetic preservation space 201, it flows out of the magnetic preservation space 201 from the wind passage hole 2105. The rear heat preservation layer 250 and the rear side wall of the barrel 210 form a wind guide channel that is in communication with the wind passage hole 2105, and the magnetic field preservation container 200 is formed with an air outlet 207 that is in communication with the wind guide channel, and the air outlet 207 is in communication with the return air outlet of the refrigeration space of the refrigerator cabinet. The cold air flow flowing out of the wind passage hole 2105 flows to the air outlet 207 via the wind guide channel, and then returns to the refrigeration space of the refrigerator, completing the refrigeration of the magnetic preservation space 201, mainly the internal space of the drawer 220.

[0076] Through the above structure configuration, while realizing the refrigeration of the internal space of the drawer 220, the direct blowing of the cold air to the internal space of the drawer 220 is avoided, so as to avoid the temperature of the stored objects placed in the internal space of the drawer 220 from dropping too fast, thereby being able to gently reach the temperature required for magnetic field preservation, and better realizing the magnetic field preservation.

[0077] In other embodiments, only the top section can be provided, and the cold air flow directly flows out of the magnetic field preservation container from the front of the top section and enters the cold storage compartment of the refrigerator.

[0078] Referring to FIGS. 2-4, in some embodiments, the magnetic field preservation container 200 includes a top cover 290 covering the top of the top heat preservation layer 230. The side wall of the top cover 290 covers part of the side heat preservation layer 240, and the rear wall of the top cover 290 covers part of the rear heat preservation layer 250. The top cover 290 is fixed with the side heat preservation layer 240, and the top cover 290 is fixed with the rear heat preservation layer 250. The fixing manner can be screw fixing and the like, thereby reinforcing the cooperation between the top heat preservation layer 230, the side heat preservation layer 240 and the rear heat preservation layer 250.

[0079] Referring to FIG. 14, in some embodiments, different from the above-mentioned embodiments, the positioning structure 280 is a mounting plate, and the mounting plate is formed with a plurality of grooves as the mounting areas 281. That is, the permanent magnets are mounted in the grooves of the mounting plate. By mounting the permanent magnets by using the grooves on the mounting plate, the structure is more stable.

[0080] In addition, in other embodiments, the uniform magnet plate can also be directly used as the mounting plate, so as to simplify the structure on the basis of using the uniform magnet plate to uniform the magnetic field.

[0081] Referring to FIGS. 11 and 14, in some embodiments, the positioning structure 280 is fixedly connected with the permanent magnet 261, so as to form an integral whole of the positioning structure 280 and the permanent magnet 261. In an embodiment, the positioning structure 280 and the permanent magnet 261 can be fixed together by using a gluing method or an insert injection method. By fixing the positioning structure 280 and the permanent magnet 261 into an integral whole, the modular assembly is facilitated, and the assembly convenience is improved.

[0082] As shown in FIG. 15, in some embodiments, the positioning structure 280 is a sidewall of a barrel, and the sidewall of the barrel is formed with a plurality of mounting slots as the mounting areas 281. In an embodiment, taking the magnetic field generating module arranged at the top of the barrel as an example, the top wall of the barrel is used as the positioning structure 280, and the top wall of the barrel is formed with a plurality of mounting slots as the mounting areas 281, and the permanent magnets are directly mounted in the mounting slots on the sidewall of the barrel.

[0083] By using the sidewall of the barrel as the positioning structure 280 and forming a plurality of mounting slots as the mounting areas 281 on the sidewall of the barrel, the permanent magnets can be mounted on the sidewall of the barrel, and on the basis of being able to position the relative positions between the plurality of permanent magnets, the permanent magnets are directly mounted on the barrel, and the mounting work is simplified.

[0084] In other embodiments, the permanent magnets and the sidewall of the barrel can also be directly injection molded into an integral structure.

[0085] Although not shown in the drawings, in some embodiments, the positioning structure is a plastic sealing film, and the plastic sealing film is formed with a plurality of mounting cavities as the mounting areas. In other words, the plurality of permanent magnets are plastic sealed together by using the plastic sealing film, so as to position the relative positions between the plurality of permanent magnets.

[0086] It should be understood that although the present specification is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0087] The above detailed description set forth above in connection with the appended drawings is merely descriptive of the best mode presently contemplated of carrying out the application. The detailed description set forth above in connection with the appended drawings is presented by way of example: an equivalent altematives to those explicitly de- scribed herein can be used; and many modifications and variations to those explicitly described herein can be resorted to without departing from the spirit and scope of the application, as such modifications and variations would be obvious to those skilled in the art.

Claims

1. A magnetic field preserving container, characterized by, The magnetic field preservation container comprises: a barrel body formed with a magnetic preservation space; a magnetic field generating module arranged on at least one side wall of the barrel body to generate a magnetic field in the magnetic preservation space, the magnetic field generating module comprising a plurality of permanent magnet pieces; and a positioning structure formed with a plurality of mounting areas corresponding to the permanent magnet pieces to position the relative positions among the plurality of permanent magnet pieces.

2. The magnetic field fresh keeping container according to claim 1, characterized in that, The positioning structure is a mounting bracket, and the mounting bracket has a plurality of mounting areas formed in a hollow manner.

3. The magnetic field fresh keeping container according to claim 2, characterized in that, The magnetic field generating module further comprises a uniform magnetic plate arranged on the side of all the permanent magnet pieces away from the barrel body.

4. The magnetic field fresh keeping container according to claim 3, characterized in that, The side of the uniform magnetic plate facing the permanent magnet pieces is formed with a pressing groove, and the mounting bracket and the permanent magnet pieces are arranged in the pressing groove.

5. The magnetic field fresh keeping container according to claim 4, characterized in that, The edge of the mounting bracket is provided with a positioning protrusion, and the edge of the uniform magnetic plate is provided with a positioning notch corresponding to the positioning protrusion, and the positioning protrusion extends into the positioning notch to determine the mounting direction of the mounting bracket relative to the uniform magnetic plate.

6. The magnetic field fresh keeping container according to claim 1, characterized in that, The positioning structure is a mounting plate, and the mounting plate is formed with a plurality of grooves as the mounting areas.

7. The magnetic field fresh keeping container according to claim 1, characterized in that, The positioning structure is the side wall of the barrel body, and the side wall of the barrel body is formed with a plurality of mounting slots as the mounting areas.

8. The magnetic field fresh keeping container according to claim 1, characterized in that, The positioning structure is a plastic sealing film, and the plastic sealing film is formed with a plurality of mounting cavities as the mounting areas.

9. The magnetic field fresh keeping container according to any one of claims 1 to 8, characterized in that, The positioning structure is fixedly connected with the permanent magnet pieces, so that the positioning structure and the permanent magnet pieces form an integral whole.

10. The magnetic field fresh keeping container according to claim 1, characterized in that, The permanent magnet pieces are square-shaped with one corner missing, and the shape of the mounting areas is the same as that of the permanent magnet pieces to indicate the assembly direction of the corner-missing part of the permanent magnet pieces.

11. The magnetic field fresh keeping container according to claim 1, characterized in that, The barrel body comprises an upper shell and a lower shell, and the upper shell and the lower shell are longitudinally spliced to form the outer side wall of the barrel body.

12. The magnetic field fresh keeping container according to claim 11, characterized in that, The upper shell and the lower shell are connected by a clamping structure.

13. The magnetic field fresh keeping container according to claim 1, characterized in that, The magnetic field preservation container comprises two magnetic field generating modules arranged on opposite sides of the magnetic preservation space and connected by a magnetic conducting connector.

14. The magnetic field fresh keeping container according to claim 1, characterized in that, The magnetic field preservation container further comprises a drawer, a top heat preservation layer, a side heat preservation layer, and a rear heat preservation layer. The top heat preservation layer is arranged outside the top wall of the magnetic preservation space, the side heat preservation layer is arranged outside the left side wall of the magnetic preservation space, and the rear heat preservation layer is arranged outside the rear side wall of the magnetic preservation space. The front end of the magnetic preservation space is open, so that the drawer can be arranged in the magnetic preservation space in a pullable manner.

15. A refrigerator characterized by comprising: The magnetic field preservation container comprises: a barrel body formed with a magnetic preservation space; and a magnetic field preservation container according to any one of claims 1 to 14, arranged in the cold storage compartment. The magnetic field preservation container comprises: a barrel body formed with a magnetic preservation space; and a magnetic field preservation container according to any one of claims 1 to 14, arranged in the cold storage compartment.

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