Refrigerator

Abstract

The utility model provides a refrigerator which is provided with a food material storage area used for storing food materials and comprises two magnetic field generation structures, the two magnetic field generation structures are arranged on the two opposite sides of the food material storage area respectively, the magnetic field generation structures are used for generating magnetic fields in the food material storage area, and each magnetic field generation structure comprises a permanent magnet piece and at least two magnetic supplement blocks. The two magnetic supplement blocks are arranged on the two opposite sides of the permanent magnet pieces respectively, the magnetic supplement blocks are located between the planes where the two opposite surfaces of the two permanent magnet pieces are located, and at least part of the magnetic supplement blocks are located between the planes where the two opposite surfaces of the two permanent magnet pieces are located. The magnetic supplement blocks of the two magnetic field generation structures are correspondingly arranged in the distribution direction of the two magnetic field generation structures. The magnetic supplement blocks on the two sides can compensate the magnetic field of the permanent magnet pieces, so that the boundary effect of the magnetic field of the permanent magnet pieces is counteracted, and the magnetic field distribution in the whole food material storage area is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a refrigerator. Background Art

[0002] Refrigerators are common household appliances that can store items at low temperatures. As people's living standards improve, higher requirements are placed on the preservation effect of refrigerators. Theoretical studies have found that magnetic fields have a great influence on the low-temperature storage of food, because magnetic fields limit the free path of water molecules to a certain extent, so that the growth of crystal nuclei is inhibited, so that food is less likely to freeze at low temperatures, so that refrigeration can be achieved at a certain sub-zero temperature, or the ice crystals produced when food is frozen can be reduced to reduce damage to food cells.

[0003] Applying a magnetic field to food can help to store food at low temperatures and improve the preservation of food. Therefore, refrigerators are also actively exploring the introduction of magnetic fields into fresh-keeping storage. However, when actually applied in refrigerators, the uniformity of the magnetic field needs to be improved. Utility Model Content

[0004] An object of the utility model is to provide a refrigerator capable of improving the uniformity of the magnetic field.

[0005] In particular, the utility model provides a refrigerator having a food storage area for storing food, the refrigerator comprising:

[0006] Two magnetic field generating structures, the two magnetic field generating structures are respectively arranged on the opposite sides of the food storage area, the magnetic field generating structure is used to generate a magnetic field in the food storage area, the magnetic field generating structure includes a permanent magnet sheet and at least two magnetic supplementary blocks, the two magnetic supplementary blocks are respectively arranged on the opposite sides of the permanent magnet sheet, the magnetic supplementary block is located between the planes where the two surfaces of the two permanent magnet sheets are facing each other, and the magnetic supplementary block is at least partially located between the planes where the two surfaces of the two permanent magnet sheets are facing each other, and the magnetic supplementary blocks of the two magnetic field generating structures are correspondingly arranged along the distribution direction of the two magnetic field generating structures.

[0007] Optionally, the permanent magnet sheet and the magnetic supplement block are integrally formed to form the magnetic field generating structure.

[0008] Optionally, the permanent magnet sheet and the magnetic supplement block are formed separately.

[0009] Optionally, all the magnetic supplement blocks of the magnetic field generating structure are located between the planes where the two opposite surfaces of the two permanent magnet sheets are located, and there is a gap between the magnetic supplement blocks of the magnetic field generating structure and the permanent magnet sheets along the distribution direction of the two magnetic field generating structures.

[0010] Optionally, the magnetic field generating structure includes four magnetic supplement blocks, wherein two of the magnetic supplement blocks are respectively arranged on two opposite sides of the permanent magnet sheet, and the other two magnetic supplement blocks are respectively arranged on two other opposite sides of the permanent magnet sheet.

[0011] Optionally, the refrigerator further comprises:

[0012] Two magnetic shimming plates are respectively arranged on two opposite sides of the food storage area, and the two magnetic shimming plates are respectively arranged on one side of the two permanent magnet sheets away from the food storage area.

[0013] Optionally, the refrigerator further comprises:

[0014] Two magnetic conductive parts are respectively arranged on two opposite sides of the food storage area, and two ends of the magnetic conductive parts are respectively connected to the two uniform magnetic plates, so that the two uniform magnetic plates and the two magnetic conductive parts together constitute an annular magnetic conductive path and surround the outer periphery of the two magnetic field generating structures.

[0015] Optionally, the ratio of the thickness of the portion of the magnetic supplementary block located between the planes where the two opposite surfaces of the two permanent magnet sheets are located to the thickness of the permanent magnet sheets is greater than or equal to 0.5 and less than or equal to 3.

[0016] Optionally, on a plane perpendicular to the distribution direction of the two magnetic field generating structures, the ratio of the projected area of ​​the magnetic supplementary block of the magnetic field generating structure to the projected area of ​​the permanent magnet sheet is greater than or equal to 0.1 and less than or equal to 0.45.

[0017] Optionally, on a plane perpendicular to the distribution direction of the two magnetic field generating structures, a ratio of a projected area of ​​the magnetic field generating structure to a projected area of ​​the food storage area is greater than or equal to 0.8 and less than or equal to 1.5.

[0018] The refrigerator of the utility model is provided with magnetic field generating structures on opposite sides of the food storage area, and the magnetic field generating structures are provided with permanent magnet sheets and magnetic supplement blocks, and the magnetic supplement blocks are at least partially located between the planes where the two opposite surfaces of the two permanent magnet sheets are located. The magnetic field generating structure can generate a magnetic field in the food storage area, so that the food placed in the food storage area can be stored at a low temperature under the action of the magnetic field, thereby improving the preservation effect of the food. Because the magnetic field of the side of a simple plate-shaped permanent magnet sheet is weaker than the magnetic field of the central area of ​​the plate surface, the magnetic supplement blocks on both sides can compensate for the magnetic field of the permanent magnet sheet, thereby offsetting the boundary effect of the magnetic field of the permanent magnet sheet, and making the magnetic field distribution in the entire food storage area more uniform.

[0019] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0021] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the utility model;

[0022] Figure 2 is a first schematic diagram of a magnetic field generating structure in a refrigerator according to an embodiment of the utility model;

[0023] Figure 3 is a second schematic diagram of a magnetic field generating structure in a refrigerator according to an embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of a magnetic field generating structure in a refrigerator according to an embodiment of the utility model projected in a plane;

[0025] Figure 5 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0026] Figure 6 is a schematic diagram of a magnetic field generating structure and a magnetic shim plate in a refrigerator according to another embodiment of the utility model;

[0027] Figure 7 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0028] Figure 8 It is a schematic diagram of a magnetic field generating structure, a uniform magnetic plate, and a magnetic conductive member in a refrigerator according to another embodiment of the utility model;

[0029] Fig. 9 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0030] Fig.10 is a first schematic diagram of a magnetic field generating structure in a refrigerator according to another embodiment of the utility model;

[0031] Fig.11 is a second schematic diagram of a magnetic field generating structure in a refrigerator according to yet another embodiment of the utility model;

[0032] Fig.12 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0033] Fig.13 is a schematic diagram of a magnetic field generating structure and a magnetic shim plate in a refrigerator according to another embodiment of the utility model;

[0034] Fig.14 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0035] Fig.15 It is a schematic diagram of a magnetic field generating structure, a uniform magnetic plate, and a magnetic conductive member in a refrigerator according to another embodiment of the utility model;

[0036] Fig.16 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0037] Fig.17 is a first schematic diagram of a magnetic field generating structure in a refrigerator according to another embodiment of the utility model;

[0038] Fig.18 is a second schematic diagram of a magnetic field generating structure in a refrigerator according to yet another embodiment of the utility model;

[0039] Fig.19 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0040] Fig. 20 is a schematic diagram of a magnetic field generating structure and a magnetic shim plate in a refrigerator according to another embodiment of the utility model;

[0041] Fig.21 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0042] Fig. 22 It is a schematic diagram of a magnetic field generating structure, a uniform magnetic plate, and a magnetic conductive member in a refrigerator according to another embodiment of the utility model;

[0043] Fig.23 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0044] Fig.24 is a first schematic diagram of a magnetic field generating structure in a refrigerator according to another embodiment of the utility model;

[0045] Fig.25 is a second schematic diagram of a magnetic field generating structure in a refrigerator according to yet another embodiment of the utility model;

[0046] Fig.26 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0047] Fig. 27is a schematic diagram of a magnetic field generating structure and a magnetic shim plate in a refrigerator according to another embodiment of the utility model;

[0048] Fig.28 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0049] Fig.29 It is a schematic diagram of a magnetic field generating structure, a uniform magnetic plate, and a magnetic conductive member in a refrigerator according to another embodiment of the utility model;

[0050] Fig.30 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0051] Fig.31 is a first schematic diagram of a magnetic field generating structure in a refrigerator according to another embodiment of the utility model;

[0052] Fig.32 is a second schematic diagram of a magnetic field generating structure in a refrigerator according to yet another embodiment of the utility model;

[0053] Fig.33 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0054] Fig.34 is a schematic diagram of a magnetic field generating structure and a magnetic shim plate in a refrigerator according to another embodiment of the utility model;

[0055] Fig.35 is a schematic diagram of a refrigerator according to another embodiment of the utility model;

[0056] Fig.36 The utility model is a schematic diagram of a magnetic field generating structure, a uniform magnetic plate and a magnetic conductive member in a refrigerator according to another embodiment of the utility model. DETAILED DESCRIPTION

[0057] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and the embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] Furthermore, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] like Figures 1 to 3 As shown, in one embodiment, the refrigerator includes a box body 100, a drawer 200 and two magnetic field generating structures 300. The box body 100 is formed with a storage compartment 101. The drawer 200 is arranged in the storage compartment 101 in a pull-out manner, and a food storage area 201 for placing food is formed inside the drawer 200. The two magnetic field generating structures 300 are respectively arranged on opposite sides of the food storage area 201, and the magnetic field generating structure 300 is used to generate a magnetic field in the food storage area 201. The magnetic field generating structure 300 includes a permanent magnetic sheet 310 and two magnetic supplementary blocks 320, the two magnetic supplementary blocks 320 are respectively arranged on opposite sides of the permanent magnetic sheet 310, the magnetic supplementary blocks 320 are located between the planes where the two surfaces of the two permanent magnetic sheets 310 are separated from each other, and the magnetic supplementary blocks 320 are at least partially located between the planes where the two surfaces of the two permanent magnetic sheets 310 are located. The magnetic supplementary blocks 320 of the two magnetic field generating structures 300 are correspondingly arranged along the distribution direction of the two magnetic field generating structures 300.

[0061] Reference Figures 1 to 3 As shown, specifically, the permanent magnet sheet 310 and the magnetic supplement block 320 are formed separately. That is to say, the permanent magnet sheet 310 and the magnetic supplement block 320 are both separate components. The permanent magnet sheet 310 is in the shape of a square plate, and the magnetic supplement block 320 is in the shape of a square strip. The two magnetic supplement blocks 320 are respectively arranged on the opposite sides of the permanent magnet sheet 310, and the magnetic supplement block 320 is located between the planes where the two surfaces of the two permanent magnet sheets 310 are opposite to each other, and the magnetic supplement block 320 is at least partially located between the planes where the two surfaces of the two permanent magnet sheets 310 are opposite to each other.

[0062] Specifically, Figures 1 to 3 Taking the orientation in as an example, the two magnetic field generating structures 300 are respectively arranged on the upper side and the lower side of the food storage area 201. The two surfaces of the two permanent magnet sheets 310 that are opposite to each other are the upper surface of the permanent magnet sheet 310 located on the upper side of the food storage area 201 and the lower surface of the permanent magnet sheet 310 located on the lower side of the food storage area 201. The two opposing surfaces of the two permanent magnet sheets 310 are the lower surface of the permanent magnet sheet 310 located on the upper side of the food storage area 201 and the upper surface of the permanent magnet sheet 310 located on the lower side of the food storage area 201. For each magnetic field generating structure 300, two magnetic supplementary blocks 320 are arranged on the left and right sides of the permanent magnet sheet 310, that is, the magnetic supplementary blocks 320 of the two magnetic field generating structures 300 are correspondingly arranged along the distribution direction of the two magnetic field generating structures 300. The length of the magnetic supplementary block 320 is the same as the length of the side of the permanent magnet sheet 310 on which it is located.

[0063] For the magnetic field generating structure 300 located on the upper side of the food storage area 201, the upper surface of the magnetic supplement block 320 is flush with the upper surface of the permanent magnet sheet 310, and the lower surface of the magnetic supplement block 320 is lower than the lower surface of the permanent magnet sheet 310, so that the magnetic supplement block 320 is completely located below the upper surface of the permanent magnet sheet 310, and partially located below the lower surface of the permanent magnet sheet 310. The magnetic supplement block 320 is located between the planes where the upper surface of the permanent magnet sheet 310 located on the upper side of the food storage area 201 and the lower surface of the permanent magnet sheet 310 located on the lower side of the food storage area 201 are located, that is, between the planes where the two surfaces of the two permanent magnet sheets 310 are located that are opposite to each other. The portion of the magnetic supplement block 320 located below the lower surface of the permanent magnet sheet 310 is located between the planes where the lower surface of the permanent magnet sheet 310 located on the upper side of the food storage area 201 and the upper surface of the permanent magnet sheet 310 located on the lower side of the food storage area 201 are located, that is, between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located.

[0064] For the magnetic field generating structure 300 located at the lower side of the food storage area 201, the lower surface of the magnetic supplement block 320 is flush with the lower surface of the permanent magnet sheet 310, and the upper surface of the magnetic supplement block 320 is higher than the upper surface of the permanent magnet sheet 310, so that the magnetic supplement block 320 is entirely located above the lower surface of the permanent magnet sheet 310, and partially located above the upper surface of the permanent magnet sheet 310. The magnetic supplement block 320 is located between the planes where the upper surface of the permanent magnet sheet 310 located at the upper side of the food storage area 201 and the lower surface of the permanent magnet sheet 310 located at the lower side of the food storage area 201 are located, that is, between the planes where the two surfaces of the two permanent magnet sheets 310 are located that are opposite to each other. The portion of the magnetic supplement block 320 located above the upper surface of the permanent magnet sheet 310 is located between the planes where the lower surface of the permanent magnet sheet 310 located on the upper side of the food storage area 201 and the upper surface of the permanent magnet sheet 310 located on the lower side of the food storage area 201 are located, that is, between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located.

[0065] Continue to refer to Figures 1 to 3 As shown, the magnetic pole distribution direction of the magnetic field generating structure 300 is the same as the distribution direction of the two magnetic field generating structures 300, and the magnetic pole distribution directions of the two magnetic field generating structures 300 are the same. Specifically, the magnetic pole distribution direction of the magnetic field generating structure 300 is distributed up and down (that is, the magnetic fields of the permanent magnet piece 310 and the magnetic supplementary block 320 are distributed up and down), for example, the N pole is at the top and the S pole is at the bottom.

[0066] In the scheme of this embodiment, a magnetic field generating structure 300 is respectively arranged on opposite sides of the food storage area 201, and the magnetic field generating structure 300 has a permanent magnet sheet 310 and a magnetic supplement block 320, and the magnetic supplement block 320 is at least partially located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located. The magnetic field generating structure 300 can generate a magnetic field in the food storage area 201, so that the food placed in the food storage area can be stored at a low temperature under the action of the magnetic field, thereby improving the preservation effect of the food. Because the magnetic field on the side of the simple plate-shaped permanent magnet sheet 310 is weaker than the magnetic field in the central area of ​​the plate surface, the magnetic supplement blocks 320 on both sides can compensate for the magnetic field of the permanent magnet sheet 310, thereby offsetting the boundary effect of the magnetic field of the permanent magnet sheet 310, so that the magnetic field in the entire food storage area 201 is more evenly distributed.

[0067] It should be noted that the box body is generally formed with multiple storage compartments, and the multiple storage compartments can be used to achieve different functions, such as a refrigeration compartment, a freezing compartment, a variable temperature compartment, etc. For the refrigerator of the present application, those skilled in the art can configure the specific number, function and layout of the storage compartments according to the needs. The magnetic field generating structure can be set in one storage compartment, or in multiple storage compartments.

[0068] It should be noted that, in some other embodiments, the two magnetic field generating structures may also be respectively disposed on the left and right sides of the food storage area, and may be located on opposite sides of the food storage area.

[0069] It should be noted that, in some other embodiments, the storage container may also be a storage box with an open front end, and the internal space of the storage box is used as the food storage area. Alternatively, in some other embodiments, a partition may be provided in the storage compartment to separate the food storage area. Alternatively, the entire storage compartment may be used as the food storage area, and the magnetic field generating structure may be provided in the inner layer of the compartment wall constituting the storage compartment.

[0070] It should be noted that, in some other embodiments, a food storage area may also be provided on the door of the refrigerator.

[0071] like Figure 3As shown, further, the ratio of the thickness of the portion of the magnetic supplementary block 320 located between the planes where the two opposing surfaces of the two permanent magnet sheets 310 are located to the thickness of the permanent magnet sheets 310 is greater than or equal to 0.5 and less than or equal to 3. The thickness of the portion of the magnetic supplementary block 320 located between the planes where the two opposing surfaces of the two permanent magnet sheets 310 are located, that is, the size of the portion of the magnetic supplementary block 320 located between the planes where the two opposing surfaces of the two permanent magnet sheets 310 are located in the distribution direction of the two magnetic field generating structures 300.

[0072] Specifically, taking the magnetic field generating structure 300 located above the food storage area 201 as an example, the thickness of the permanent magnet sheet 310 is d1, and the thickness of the part of the magnetic supplement block 320 located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located is d2, that is, the value of d1 / d2 is greater than or equal to 0.5 and less than or equal to 3, for example, it can be 0.5, 0.8, 1, 1.6, 2, 2.1, 2.5 or 3, etc.

[0073] By making the ratio of the thickness of the part of the magnetic supplement block 320 located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located to the thickness of the permanent magnet sheet 310 be greater than or equal to 0.5 and less than or equal to 3, it helps to ensure that the magnetic field generated by the magnetic supplement block 320 has a better compensation effect on the magnetic field generated by the permanent magnet sheet 310.

[0074] like Figure 3 and Figure 4 As shown, further, on a plane perpendicular to the distribution direction of the two magnetic field generating structures 300, the ratio of the projected area of ​​the magnetic supplementary block 320 of the magnetic field generating structure 300 to the projected area of ​​the permanent magnet sheet 310 is greater than or equal to 0.1 and less than or equal to 0.45.

[0075] Specifically, the two magnetic field generating structures 300 are distributed in the up-down direction, and the plane perpendicular to the distribution direction of the two magnetic field generating structures 300 is the horizontal plane. Figure 4 As shown, the dotted frame represents the plane perpendicular to the distribution direction of the two magnetic field generating structures 300, that is, the projection plane, the larger square area in the dotted frame represents the projection area S1 of the permanent magnet sheet 310 on the projection plane, and the two smaller square areas represent the projection areas S2 of the two magnetic supplementary blocks 320 on the projection plane. That is, the value of 2S2 / S1 is greater than or equal to 0.1 and less than or equal to 0.45, for example, it can be 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4 or 0.45, etc.

[0076] By making the ratio of the projected areas of the magnetic supplement block 320 of the magnetic field generating structure 300 and the permanent magnet sheet 310 on the plane perpendicular to the distribution direction of the two magnetic field generating structures 300 greater than or equal to 0.1 and less than or equal to 0.45, it helps to ensure that the magnetic field generated by the magnetic supplement block 320 has a better compensation effect on the magnetic field generated by the permanent magnet sheet 310.

[0077] like Figures 1 to 3 As shown, further, on a plane perpendicular to the distribution direction of the two magnetic field generating structures 300, the ratio of the projected area of ​​the magnetic field generating structure 300 to the projected area of ​​the food storage area 201 is greater than or equal to 0.8 and less than or equal to 1.5. Figure 4 As shown, the dotted frame represents the plane perpendicular to the distribution direction of the two magnetic field generating structures 300. The larger square area in the dotted frame represents the projection area S1 of the permanent magnet sheet 310 on the projection plane, and the two smaller square areas represent the projection area S2 of the two magnetic supplementary blocks 320 on the projection plane, that is, the projection area of ​​the magnetic field generating structure 300, that is, S1+2S2. Although not shown, in the projection plane, the projection area of ​​the food storage area 201 should also be a square area, then the ratio of the value of S1+2S2 to the area of ​​the square projection of the food storage area 201 is greater than or equal to 0.8 and less than or equal to 1.5, for example, it can be 0.8, 0.85, 0.9, 0.96, 1, 1.2, 1.3, 1.4 or 1.5, etc.

[0078] By making the ratio of the projected areas of the magnetic field generating structure 300 and the food storage area 201 on the plane perpendicular to the distribution direction of the two magnetic field generating structures 300 greater than or equal to 0.8 and less than or equal to 1.5, it helps to ensure that the magnetic field generated by the magnetic field generating structure 300 fully covers the food storage area 201 and that the boundary portion of the food storage area 201 has a higher magnetic field strength, so that the magnetic field in the food storage area 201 has better uniformity.

[0079] Preferably, the center of the magnetic field generating structure coincides with the center of the food storage area along the distribution direction.

[0080] like Figure 5 and Figure 6 As shown, in another embodiment, the permanent magnet sheet 310 and the magnetic supplement block 320 are formed separately. The refrigerator further comprises two magnetic shimming plates 400, which are respectively arranged on opposite sides of the food storage area 201, and the two magnetic shimming plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201.

[0081] by Figures 5 and 6Taking the orientation in as an example, the two magnetic field generating structures 300 are respectively arranged on the upper side and the lower side of the food storage area 201, and the two uniform magnetic plates 400 are also arranged on the upper side and the lower side of the food storage area 201. And the uniform magnetic plate 400 located on the upper side of the food storage area 201 is on the upper surface of the permanent magnetic sheet 310 located on the upper side of the food storage area 201. The uniform magnetic plate 400 located on the lower side of the food storage area 201 is on the lower surface of the permanent magnetic sheet 310 located on the lower side of the food storage area 201. In addition, on the plane perpendicular to the distribution direction of the two magnetic field generating structures 300, the projection area of ​​the uniform magnetic plate 400 is larger than the projection area of ​​the magnetic field generating structure 300.

[0082] In the solution of this embodiment, by respectively arranging uniform magnetic plates 400 on the side of the two permanent magnetic sheets 310 facing away from the food storage area 201, the uniform magnetic plates 400 can guide the magnetic field generated by the magnetic field generating structure 300 on the plane where the magnetic field generating structure 300 is located, so that the magnetic field generated by the magnetic field generating structure 300 is distributed more evenly in the food storage area 201, and it helps to achieve the same magnetic field distribution effect on the basis of reducing the usage of the magnetic field generating structure 300.

[0083] like Figure 7 and Figure 8 As shown, in another embodiment, the permanent magnet sheet 310 and the magnetic supplement block 320 are formed separately. The refrigerator also includes two shimming plates 400 and two magnetic conductive parts 500. The two shimming plates 400 are respectively arranged on the opposite sides of the food storage area 201, and the two shimming plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201. The two magnetic conductive parts 500 are respectively arranged on the opposite sides of the food storage area 201, and the two ends of the magnetic conductive parts 500 are respectively connected to the two shimming plates 400, so that the two shimming plates 400 and the two magnetic conductive parts 500 together constitute a ring-shaped magnetic conductive path, and surround the outer periphery of the two magnetic field generating structures 300.

[0084] by Figures 7 and 8 Taking the orientation in as an example, the two magnetic field generating structures 300 are respectively arranged on the upper side and the lower side of the food storage area 201, and the two uniform magnetic plates 400 are also arranged on the upper side and the lower side of the food storage area 201. And the uniform magnetic plate 400 located on the upper side of the food storage area 201 is on the upper surface of the permanent magnetic sheet 310 located on the upper side of the food storage area 201. The uniform magnetic plate 400 located on the lower side of the food storage area 201 is on the lower surface of the permanent magnetic sheet 310 located on the lower side of the food storage area 201. The two magnetic conductive parts 500 are respectively arranged on the left and right sides of the food storage area 201, and the upper end of the magnetic conductive part 500 is connected to the uniform magnetic plate 400 located above the food storage area 201, and the lower end of the magnetic conductive part 500 is connected to the uniform magnetic plate 400 located below the food storage area 201.

[0085] In the scheme of this embodiment, a uniform magnetic plate 400 is respectively arranged on the side of the two permanent magnetic sheets 310 away from the food storage area 201, and a magnetic conductive member 500 is respectively arranged on the two opposite sides of the food storage area 201, and the two ends of the magnetic conductive member 500 are respectively connected to the two uniform magnetic plates 400, so that the two uniform magnetic plates 400 and the two magnetic conductive members 500 together constitute an annular magnetic conductive path surrounding the outer periphery of the two magnetic field generating structures 300. The annular magnetic conductive path can not only guide the magnetic field in the annular direction, so that the magnetic field at the edge of the food storage area 201 and the magnetic field in the middle are closer, further improving the uniformity of the magnetic field in the food storage cavity 201, but also the annular magnetic conductive path can converge the magnetic field of the magnetic field generating structure 300, reduce the leakage of the magnetic field to the outside of the annular magnetic conductive path, and help improve the utilization rate of the magnetic field.

[0086] like Figures 9 to 11 As shown, in one embodiment, the magnetic field generating structure 300 includes four magnetic supplementary blocks 320, wherein two magnetic supplementary blocks 320 are respectively arranged on two opposite sides of the permanent magnet sheet 310, and the other two magnetic supplementary blocks 320 are respectively arranged on two other opposite sides of the permanent magnet sheet 310. The permanent magnet sheet 310 and the magnetic supplementary blocks 320 are formed separately. That is, the four magnetic supplementary blocks 320 are respectively arranged on the four sides of the permanent magnet sheet 310.

[0087] Reference Figures 9 to 11 As shown, specifically, two magnetic field generating structures 300 are respectively arranged on the upper side and the lower side of the food storage area 201. For each magnetic field generating structure 300, two magnetic supplementary blocks 320 are arranged on the left and right sides of the permanent magnetic sheet 310, and the other two magnetic supplementary blocks 320 are arranged on the front and back sides of the permanent magnetic sheet 310.

[0088] By setting four magnetic supplement blocks 320, two of which are respectively set on two opposite sides of the permanent magnet sheet 310, and the other two magnetic supplement blocks 320 are respectively set on the other two opposite sides of the permanent magnet sheet 310, the four magnetic supplement blocks 320 can respectively compensate for the magnetic field at the four sides of the permanent magnet sheet 310, thereby further improving the uniformity of the magnetic field in the food storage area 201.

[0089] It should be noted that the dimensions of the four magnetic supplementary blocks in each direction only need to ensure that two of the opposite ones are the same, and they may not all be the same. In addition, in some other implementations of this embodiment, the magnetic field generating structure may also have more than four magnetic supplementary blocks and an even number.

[0090] like Fig.12 and Fig.13As shown, in another embodiment, the magnetic field generating structure 300 includes four magnetic supplement blocks 320, and the permanent magnet sheet 310 and the magnetic supplement block 320 are formed separately, and the refrigerator further includes two shimming plates 400, the two shimming plates 400 are respectively arranged on the opposite sides of the food storage area 201, and the two shimming plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201. The technical effects refer to the above description and are not repeated here.

[0091] like Fig.14 and Fig.15 As shown, in another embodiment, on the basis that the magnetic field generating structure 300 includes four magnetic supplement blocks 320, and the permanent magnet sheet 310 and the magnetic supplement block 320 are formed separately, the refrigerator also includes two uniform magnetic plates 400 and two magnetic conductive parts 500, the two uniform magnetic plates 400 are respectively arranged on the opposite sides of the food storage area 201, and the two uniform magnetic plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201. The two magnetic conductive parts 500 are respectively arranged on the opposite sides of the food storage area 201, and the two ends of the magnetic conductive parts 500 are respectively connected to the two uniform magnetic plates 400, so that the two uniform magnetic plates 400 and the two magnetic conductive parts 500 together constitute a ring-shaped magnetic conductive path, and surround the outer periphery of the two magnetic field generating structures 300. The technical effects refer to the above description and are not repeated here.

[0092] like Figures 16 to 18 As shown, on the basis that the magnetic field generating structure 300 includes four magnetic supplement blocks 320, and the permanent magnet sheets 310 and the magnetic supplement blocks 320 are separately formed, all the magnetic supplement blocks 320 of the magnetic field generating structure 300 are located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located, and there is a gap between the magnetic supplement blocks 320 of the magnetic field generating structure 300 and the permanent magnet sheets 310 along the distribution direction of the two magnetic field generating structures 300.

[0093] Reference Figures 16 to 18 As shown, two magnetic field generating structures 300 are respectively arranged on the upper side and the lower side of the food storage area 201. For each magnetic field generating structure 300, two magnetic supplementary blocks 320 are arranged on the left and right sides of the permanent magnet sheet 310, and the other two magnetic supplementary blocks 320 are arranged on the front and back sides of the permanent magnet sheet 310. For the two magnetic supplementary blocks 320 arranged on the left and right sides of the permanent magnet sheet 310, the magnetic supplementary blocks 320 are located near the middle of the distribution direction of the two permanent magnet sheets 310, and for the two magnetic supplementary blocks 320 arranged on the left and right sides of the permanent magnet sheet 310, the magnetic supplementary blocks 320 are located closer to the position where the corresponding permanent magnet sheet 310 is located.

[0094] In the scheme of the present embodiment, by making all the magnetic supplement blocks 320 of the magnetic field generating structure 300 located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located, and there is a gap between the magnetic supplement blocks 320 of the magnetic field generating structure 300 and the permanent magnet sheets 310 along the distribution direction of the two magnetic field generating structures 300, the magnetic field generated by the magnetic supplement blocks 320 can be closer to the area in the middle of the food storage area 201 in the distribution direction of the two permanent magnet sheets 310, so that the magnetic field generated by the magnetic supplement blocks 320 at the boundary of the food storage area 201 is more evenly distributed in the distribution direction of the two magnetic field generating structures 300, thereby further improving the uniformity of the magnetic field in the food storage area 201.

[0095] It should be noted that in some other implementations of this embodiment, the magnetic field generating structure may also include two magnetic supplementary blocks, or an even number of magnetic supplementary blocks greater than four.

[0096] It should be noted that, in some other implementations of this embodiment, the four magnetic supplementary blocks of the magnetic field generating structure may be located at the same position in the distribution direction of the two magnetic field generating structures.

[0097] like Fig.19 and Fig. 20 As shown, in another embodiment, the magnetic field generating structure 300 includes four magnetic supplementary blocks 320, and the permanent magnet sheet 310 and the magnetic supplementary blocks 320 are formed separately. The magnetic supplementary blocks 320 of the magnetic field generating structure 300 are all located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located, and there is a gap between the magnetic supplementary blocks 320 of the magnetic field generating structure 300 and the permanent magnet sheets 310 along the distribution direction of the two magnetic field generating structures 300. In addition, the refrigerator also includes two uniform magnetic plates 400, which are respectively arranged on the opposite sides of the food storage area 201, and the two uniform magnetic plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201.

[0098] like Fig.21 and Fig. 22As shown, in another embodiment, the magnetic field generating structure 300 includes four magnetic supplementary blocks 320, and the permanent magnet sheet 310 and the magnetic supplementary blocks 320 are formed separately. The magnetic supplementary blocks 320 of the magnetic field generating structure 300 are all located between the planes where the two opposite surfaces of the two permanent magnet sheets 310 are located, and there is a gap between the magnetic supplementary blocks 320 of the magnetic field generating structure 300 and the permanent magnet sheets 310 along the distribution direction of the two magnetic field generating structures 300. In addition, the refrigerator also includes two uniform magnetic plates 400 and two magnetic conductive parts 500, and the two uniform magnetic plates 400 are respectively arranged on the opposite sides of the food storage area 201, and the two uniform magnetic plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201. The two magnetic conductive members 500 are respectively arranged on opposite sides of the food storage area 201, and the two ends of the magnetic conductive members 500 are respectively connected to the two uniform magnetic plates 400, so that the two uniform magnetic plates 400 and the two magnetic conductive members 500 together constitute an annular magnetic conductive path and surround the outer periphery of the two magnetic field generating structures 300.

[0099] like Figure 23 to Figure 25 As shown, in another embodiment, the magnetic field generating structure 300 includes two magnetic supplementary blocks 320, and the permanent magnet sheet 310 and the magnetic supplementary blocks 320 are integrally formed to form the magnetic field generating structure 300. In other words, the magnetic field generating structure 300 is an integral structure. Similarly, the two magnetic supplementary blocks 320 of the magnetic field generating structure 300 are respectively located on opposite sides of the permanent magnet sheet 310, that is, the magnetic field generating structure 300 is a flat structure with thick sides and thin middle. The integral molding of the magnetic supplementary blocks 320 and the permanent magnet sheet 310 has the same effect as the split molding, so that the magnetic field generating structure 300 is an integral structure, which is easier to install.

[0100] It should be noted that when the permanent magnet sheet and the magnetic supplementary block are integrally formed, the magnetic supplementary block can be regarded as being located on the surface of the permanent magnet sheet facing another permanent magnet sheet, or as being located on both sides of the permanent magnet sheet.

[0101] like Figure 26 to Figure 27 As shown, in another embodiment, the magnetic field generating structure 300 includes two magnetic supplement blocks 320, and the permanent magnet sheet 310 and the magnetic supplement block 320 are integrally formed to form the magnetic field generating structure 300. The refrigerator also includes two shimming plates 400, which are respectively arranged on opposite sides of the food storage area 201, and the two shimming plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201.

[0102] like Figure 28 to Figure 29As shown, in another embodiment, the magnetic field generating structure 300 includes two magnetic supplement blocks 320, and the permanent magnet sheet 310 and the magnetic supplement block 320 are integrally formed to form the magnetic field generating structure 300. The refrigerator also includes two shimming plates 400 and two magnetic conductive parts 500, the two shimming plates 400 are respectively arranged on the opposite sides of the food storage area 201, and the two shimming plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201. The two magnetic conductive parts 500 are respectively arranged on the opposite sides of the food storage area 201, and the two ends of the magnetic conductive parts 500 are respectively connected to the two shimming plates 400, so that the two shimming plates 400 and the two magnetic conductive parts 500 together constitute a ring-shaped magnetic conductive path, and surround the outer periphery of the two magnetic field generating structures 300.

[0103] like Figure 30 to Figure 32 As shown, in another embodiment, the magnetic field generating structure 300 includes four magnetic supplementary blocks 320, wherein two magnetic supplementary blocks 320 are respectively arranged on two opposite sides of the permanent magnetic sheet 310, and the other two magnetic supplementary blocks 320 are respectively arranged on two other opposite sides of the permanent magnetic sheet 310. The permanent magnetic sheet 310 and the magnetic supplementary blocks 320 are integrally formed to form the magnetic field generating structure 300. In other words, the magnetic field generating structure 300 is a flat structure with four thick sides and a thin middle portion.

[0104] like Figure 33 to Figure 34 As shown, in another embodiment, the magnetic field generating structure 300 includes four magnetic supplementary blocks 320, wherein two magnetic supplementary blocks 320 are respectively arranged on two opposite sides of the permanent magnet sheet 310, and the other two magnetic supplementary blocks 320 are respectively arranged on two other opposite sides of the permanent magnet sheet 310. The permanent magnet sheet 310 and the magnetic supplementary blocks 320 are integrally formed to form the magnetic field generating structure 300. The refrigerator also includes two shimming plates 400, which are respectively arranged on two opposite sides of the food storage area 201, and the two shimming plates 400 are respectively arranged on one side of the two permanent magnet sheets 310 away from the food storage area 201.

[0105] like Figure 35 to Figure 36As shown, in another embodiment, the magnetic field generating structure 300 includes four magnetic supplementary blocks 320, wherein two magnetic supplementary blocks 320 are respectively arranged on two opposite sides of the permanent magnet sheet 310, and the other two magnetic supplementary blocks 320 are respectively arranged on the other two opposite sides of the permanent magnet sheet 310. And the permanent magnet sheet 310 and the magnetic supplementary blocks 320 are integrally formed to form the magnetic field generating structure 300. The refrigerator also includes two shimming plates 400 and two magnetic conductive members 500, the two shimming plates 400 are respectively arranged on two opposite sides of the food storage area 201, and the two shimming plates 400 are respectively arranged on the side of the two permanent magnet sheets 310 away from the food storage area 201. The two magnetic conductive members 500 are respectively arranged on two opposite sides of the food storage area 201, and the two ends of the magnetic conductive member 500 are respectively connected to the two shimming plates 400, so that the two shimming plates 400 and the two magnetic conductive members 500 together form a ring-shaped magnetic conductive path, and surround the outer periphery of the two magnetic field generating structures 300.

[0106] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A refrigerator, characterized in that: The refrigerator has a food storage area for storing food, and the refrigerator comprises: Two magnetic field generating structures, the two magnetic field generating structures are respectively arranged on the opposite sides of the food storage area, the magnetic field generating structure is used to generate a magnetic field in the food storage area, the magnetic field generating structure includes a permanent magnet sheet and at least two magnetic supplementary blocks, the two magnetic supplementary blocks are respectively arranged on the opposite sides of the permanent magnet sheet, the magnetic supplementary block is located between the planes where the two surfaces of the two permanent magnet sheets are facing each other, and the magnetic supplementary block is at least partially located between the planes where the two surfaces of the two permanent magnet sheets are facing each other, and the magnetic supplementary blocks of the two magnetic field generating structures are correspondingly arranged along the distribution direction of the two magnetic field generating structures.

2. The refrigerator according to claim 1, characterized in that: The permanent magnet sheet and the magnetic supplement block are integrally formed to form the magnetic field generating structure.

3. The refrigerator according to claim 1, characterized in that: The permanent magnet sheet and the magnetic supplement block are formed separately.

4. The refrigerator according to claim 3, characterized in that: The magnetic supplement blocks of the magnetic field generating structure are all located between the planes where the two opposite surfaces of the two permanent magnet sheets are located, and there is a gap between the magnetic supplement blocks of the magnetic field generating structure and the permanent magnet sheets along the distribution direction of the two magnetic field generating structures.

5. The refrigerator according to claim 1, characterized in that: The magnetic field generating structure comprises four magnetic supplementary blocks, wherein two of the magnetic supplementary blocks are respectively arranged on two opposite sides of the permanent magnet sheet, and the other two magnetic supplementary blocks are respectively arranged on two other opposite sides of the permanent magnet sheet.

6. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises: Two magnetic shimming plates are respectively arranged on two opposite sides of the food storage area, and the two magnetic shimming plates are respectively arranged on one side of the two permanent magnet sheets away from the food storage area.

7. The refrigerator according to claim 6, characterized in that: The refrigerator further comprises: Two magnetic conductive parts are respectively arranged on two opposite sides of the food storage area, and two ends of the magnetic conductive parts are respectively connected to the two uniform magnetic plates, so that the two uniform magnetic plates and the two magnetic conductive parts together constitute an annular magnetic conductive path and surround the outer periphery of the two magnetic field generating structures.

8. The refrigerator according to claim 1, characterized in that: The ratio of the thickness of the magnetic supplement block located between the planes where the two opposite surfaces of the two permanent magnet sheets are located to the thickness of the permanent magnet sheets is greater than or equal to 0.5 and less than or equal to 3.

9. The refrigerator according to claim 1, characterized in that: On a plane perpendicular to the distribution direction of the two magnetic field generating structures, the ratio of the projected area of ​​the magnetic supplementary block of the magnetic field generating structure to the projected area of ​​the permanent magnet sheet is greater than or equal to 0.1 and less than or equal to 0.

45.

10. The refrigerator according to claim 1, characterized in that: On a plane perpendicular to the distribution direction of the two magnetic field generating structures, the ratio of the projected area of ​​the magnetic field generating structure to the projected area of ​​the food storage area is greater than or equal to 0.8 and less than or equal to 1.5.

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