Fresh-keeping container and refrigerator

Abstract

The present application provides a fresh-keeping container and a refrigerator. The fresh-keeping container comprises: a container body, the container body comprising a bottom wall and a side wall, and the bottom wall and the side wall enclosing and defining an accommodation cavity; a first magnetic member disposed in the bottom wall; and a second magnetic member disposed in the bottom wall, wherein the magnetic pole of the first magnetic member facing the accommodation cavity is opposite to the magnetic pole of the second magnetic member facing the accommodation cavity.

Description

Food storage containers and refrigerators

[0001] This application claims priority to Chinese patent applications filed on July 29, 2024, with application numbers 202411027555.5 and 202421812788.1, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of refrigerator technology, and particularly to food storage containers and refrigerators. Background Technology

[0003] With the improvement of living standards, users have increasingly higher demands for food preservation. Among these technologies, magnetic field preservation utilizes a magnetic field to transform diamagnetic water molecules from a disordered state into an ordered state, reducing biological metabolism and enzyme activity, thus exhibiting significant effects in food hydration, anti-oxidation, and antibacterial properties. Food tends to accumulate at the bottom of the food storage container; however, in current technologies, the magnetic field generated by the magnetic field device inside the container is diffused within the container, making it difficult to concentrate at the bottom, resulting in low magnetic field utilization and hindering food preservation. Technical issues

[0004] The main objective of this application is to provide a food storage container and a refrigerator that address the technical problem of magnetic fields diffusing within the food storage container. Technical solutions

[0005] Firstly, this application proposes a food storage container, comprising:

[0006] The box body includes a bottom wall and side walls, which together form a receiving cavity;

[0007] A first magnetic element is disposed within the bottom wall;

[0008] A second magnetic element is disposed within the bottom wall; wherein the magnetic poles of the first magnetic element facing the receiving cavity are opposite to the magnetic poles of the second magnetic element facing the receiving cavity.

[0009] In the aforementioned food storage container, both the first magnetic component and the second magnetic component are permanent magnets.

[0010] The food storage container, wherein the permanent magnet is one of rare earth permanent magnets, metal permanent magnets, ferrite permanent magnets, and rubber magnets.

[0011] The food storage container, wherein the bottom wall has a first direction and a second direction;

[0012] Both the first magnetic element and the second magnetic element extend along the first direction; the first magnetic element and the second magnetic element are arranged sequentially along the second direction.

[0013] The food storage container, wherein the number of the first magnetic components is N, and the number of the second magnetic components is M; wherein 2≤N+M≤8.

[0014] In the aforementioned food storage container, when 3≤N+M≤8, the first magnetic component and the second magnetic component are arranged alternately along the second direction.

[0015] The food storage container, wherein the second magnetic element is arranged around the first magnetic element.

[0016] In the aforementioned food storage container, the first magnetic component has a circular ring structure, and the second magnetic components are arranged sequentially at intervals along the circumference of the first magnetic component.

[0017] In the aforementioned food storage container, the first magnetic component and the second magnetic component abut against each other.

[0018] The food storage container, wherein the first magnetic component includes a first coil, and the second magnetic component includes a second coil; the first coil and the second coil generate different magnetic poles facing the receiving cavity when energized.

[0019] The food storage container, wherein the current of the first coil and the second coil is configured to be adjustable.

[0020] The food storage container, wherein at a predetermined height from the bottom wall within the receiving cavity, the magnetic induction intensity formed by the first magnetic element and the second magnetic element is at least 2mT.

[0021] The food storage container, wherein the preset height is at least 5cm.

[0022] The food storage container, wherein the bottom wall is provided with a cavity, and the first magnetic component and the second magnetic component are disposed in the cavity.

[0023] The food storage container, wherein the bottom wall is provided with a groove, and the first magnetic component and the second magnetic component are disposed in the groove.

[0024] The food storage container, wherein the first magnetic element and the second magnetic element are disposed on the bottom wall on one side facing the receiving cavity or on the side away from the receiving cavity.

[0025] In the aforementioned food storage container, the first magnetic component and the second magnetic component are adhered to or locked onto the bottom wall.

[0026] The food storage container, wherein the first magnetic component includes a first coil and a permanent magnet, and when the first coil is energized, the magnetic poles of the magnetic field it generates are the same as the magnetic poles of the permanent magnet of the first magnetic component;

[0027] The second magnetic component includes a second coil and a permanent magnet. When the second coil is energized, the magnetic poles of the magnetic field it generates are the same as the magnetic poles of the permanent magnet of the second magnetic component.

[0028] The food storage container is configured as a drawer.

[0029] Secondly, this application also proposes a refrigerator, which includes:

[0030] Inner liner;

[0031] And the food storage container as described above, which is disposed inside the inner liner.

[0032] Beneficial effects of this application

[0033] In the technical solution of this application embodiment, by placing the first magnetic element and the second magnetic element on the bottom wall of the box; since the magnetic poles of the first magnetic element and the second magnetic element facing the cavity formed by the bottom wall and the side wall are opposite, the adjacent magnetic field lines form a magnetic circuit, that is, the magnetic field lines enter the S pole from the N pole, and the magnetic field lines are more concentrated in the bottom area, reducing the diffusion to areas away from the bottom area, improving the magnetic field utilization rate, and which is beneficial to the preservation of food. Attached Figure Description

[0034] Figure 1 is a structural schematic diagram of a food storage box provided in an embodiment of this application;

[0035] Figure 2 is a schematic diagram of the arrangement of the first and second magnetic components inside the food storage box provided in the embodiment of this application;

[0036] Figure 3 is a schematic diagram of the structure in which the first and second magnetic components in the food storage box provided in the embodiment of this application generate a magnetic field.

[0037] Figure 4 is a schematic diagram of another arrangement of the first and second magnetic components inside the food storage box provided in the embodiment of this application.

[0038] Figure 5 is another schematic diagram of the arrangement of the first and second magnetic components inside the food storage box provided in the embodiment of this application;

[0039] Figure 6 is a structural schematic diagram of the first magnetic component and the second magnetic component (using coils) inside the food storage box provided in an embodiment of this application;

[0040] Figure 7 is a graph showing the change of magnetic induction intensity inside the food storage box provided in the embodiment of this application as a function of distance from the bottom wall;

[0041] Figure 8 is a graph showing the different distances between the magnets and the bottom wall in the food storage box provided in the embodiment of this application with different numbers of magnets;

[0042] Figure 9 is a schematic diagram of the principle of generating a magnetic field in the prior art;

[0043] Figure 10 is a graph showing the change in the number of magnets and the magnetic induction intensity at a preset height ha inside the food storage box provided in this application.

[0044] Explanation of reference numerals in the attached drawings: 01, food storage container; 02, magnetic component; 110, first magnetic element; 120, second magnetic element. Embodiments of the present invention

[0045] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0048] In the prior art, a magnet is placed on one wall of the food storage container. The magnetic field lines of the magnet spread outward, making it difficult for the magnetic field lines to accumulate in the bottom area, which is not conducive to food preservation. Therefore, referring to Figures 1 and 2, this application proposes a food storage container, including:

[0049] Box 01, the box 01 includes a bottom wall and a side wall, the bottom wall and the side wall enclosing a receiving cavity;

[0050] The first magnetic element 110 is disposed inside the bottom wall;

[0051] The second magnetic element 120 is disposed within the bottom wall; wherein the magnetic poles of the first magnetic element 110 facing the receiving cavity are opposite to the magnetic poles of the second magnetic element 120 facing the receiving cavity.

[0052] In the technical solution of this application embodiment, by placing the first magnetic element 110 and the second magnetic element 120 on the bottom wall of the box body 01; since the magnetic poles of the first magnetic element 110 and the second magnetic element 120 facing the receiving cavity formed by the bottom wall and the side wall are opposite, the adjacent magnetic field lines form a magnetic circuit, that is, the magnetic field lines enter the S pole from the N pole, and the magnetic field lines are more concentrated in the bottom area, reducing the diffusion to areas away from the bottom area, improving the magnetic field utilization rate, and which is beneficial to the preservation of food.

[0053] In this embodiment, a magnetic component 02 is provided on the bottom wall, and the magnetic component 02 includes the first magnetic element 110 and the second magnetic element 120.

[0054] Referring to Figure 7, which illustrates a graph of magnetic induction intensity inside a food storage container, the magnetic induction intensity B0 at h = 0 represents the magnetic induction intensity at the bottom wall; the magnetic induction intensity weakens as the distance from the bottom wall increases. Further, referring to Figure 8, which illustrates a graph of magnetic induction intensity for different numbers of magnetic components inside the food storage container (where adjacent magnetic components have opposite magnetic poles facing the cavity), it can be seen that when the distance from the bottom wall is between 0 and ha, B... 三块磁性件 >B 两块磁性件 >B 单块磁性件 ;

[0055] When the distance from the bottom wall is between ha and hb, B 两块磁性件 >B 三块磁性件 >B 单块磁性件 ;

[0056] When the distance between B and the bottom wall is between hb and hc, B 两块磁性件 >B 单块磁性件 >B 三块磁性件 ;

[0057] When the distance from the bottom wall is greater than hc, B 单块磁性件 >B 两块磁性件 >B 三块磁性件 .

[0058] This shows that placing multiple magnetic components on the bottom wall allows more magnetic field lines to converge in the bottom area, significantly increasing the magnetic induction intensity, indicating that the magnetic field is more concentrated at the bottom of the food storage container. However, as the height of the food storage container increases, the magnetic induction intensity gradually weakens. Furthermore, when the distance between the magnetic component and the bottom wall is greater than hc, the magnetic induction intensity of a single magnetic component is stronger, indicating that the magnetic field lines of a single magnetic component are more dispersed. Placing multiple magnetic components can concentrate the magnetic field lines in the bottom area.

[0059] As shown in Figures 8 and 9, in the prior art, a single magnetic component has only one polarity on one side, generating magnetic field lines perpendicular to the plane and pointing upwards. This type of magnetic field is relatively simple, but because the magnetic field lines are divergent, some of them leak out to the outside of the food storage container, resulting in a weak magnetic induction intensity. However, the technical solution proposed in this application, such as a two- or three-magnetic-component solution as shown in Figure 3, utilizes opposite-polarity magnetic field technology. This creates magnetic flux coupling between adjacent magnetic components, reducing magnetic leakage and concentrating more magnetic field lines in the bottom region. This enhances the magnetic induction intensity inside the food storage container, solving the problem of magnetic field line diffusion and low utilization efficiency associated with traditional single-component magnetic components. Consequently, the magnetic field is concentrated at the bottom of the food storage container, acting more effectively on the food and improving its preservation effect.

[0060] In some embodiments, the bottom wall has a cavity, and the first magnetic element 110 and the second magnetic element 120 are disposed within the cavity. In some embodiments, the bottom wall has a groove, and the first magnetic element 110 and the second magnetic element 120 are disposed within the groove. In some embodiments, the first magnetic element 110 and the second magnetic element 120 may be disposed on the side of the bottom wall facing the receiving cavity or on the side facing away from the receiving cavity. In embodiments, the first magnetic element 110 and the second magnetic element 120 may be adhered to the bottom wall or locked to the bottom wall.

[0061] In one embodiment, the side of the first magnetic element 110 facing the cavity can be the N pole, and the side of the second magnetic element 120 facing the cavity can be the S pole.

[0062] As an optional implementation of the above embodiments, both the first magnetic component 110 and the second magnetic component 120 are permanent magnets. In the embodiments, the first magnetic component 110 and the second magnetic component 120 can be rare-earth permanent magnets (neodymium iron boron, samarium cobalt, etc.), metallic permanent magnets (AlNiCo, etc.), ferrite permanent magnets, rubber magnets, etc. Based on cost and manufacturability, rubber magnets are preferred; rubber magnets are formed by combining ferrite magnetic powder with synthetic rubber, and then molding them to form a magnet with a certain degree of softness and elasticity. The magnetic induction intensity generated by this combination is relatively fixed.

[0063] As an optional implementation of the above embodiments, as shown in FIG2, the bottom wall has a first direction and a second direction; the first magnetic element 110 and the second magnetic element 120 both extend along the first direction; the first magnetic element 110 and the second magnetic element 120 are arranged sequentially along the second direction. In the embodiments, the food storage container is typically used in a refrigerator. To fit the internal space of the refrigerator, in the embodiments, the bottom wall of the food storage container is square, the first direction can be the length direction of the food storage container, and the second direction can be the width direction of the food storage container; for example, the first direction can be the width direction of the food storage container, and the second direction can be the length direction of the food storage container. In the embodiments, the dimensions of the first direction of the first magnetic element 110 are substantially consistent with the dimensions of the first direction of the bottom wall of the food storage container.

[0064] As an optional implementation of the above embodiments, the number of the first magnetic element 110 is N, and the number of the second magnetic element 120 is M; wherein, 2≤N+M≤8. That is, in the embodiments, there are a total of 2-8 first magnetic elements 110 and second magnetic elements 120. As shown in Figure 10, the curve in Figure 10 illustrates the change of effective magnetic induction intensity with the increase of N+M. It can be seen that at the effective height (distance ha from the bottom wall), the effective magnetic induction intensity first increases and then decreases with the increase of N+M. When N+M is greater than 8, the magnetic field lines are basically concentrated on the bottom wall surface and cannot have an effect on the food. When there is only the first magnetic element 110 or only the second magnetic element 120, it is impossible to form a magnetic circuit in the cavity, and the magnetic field lines diffuse into space, resulting in low magnetic field utilization efficiency. Therefore, through the research of the inventors of this application, 2≤N+M≤8 can concentrate the magnetic field lines more in the bottom area from 0 to ha from the bottom wall.

[0065] In the embodiment, when 3≤N+M≤8, the first magnetic element 110 and the second magnetic element 120 are arranged alternately along the second direction.

[0066] As an optional implementation of the above embodiments, the second magnetic element 120 is disposed around the first magnetic element 110. In this embodiment, distributing the second magnetic element 120 around the first magnetic element 110 allows the concentrated magnetic field region to be a ring-shaped region.

[0067] In this embodiment, as shown in FIG4, the first magnetic element 110 is a circular ring structure, and four second magnetic elements 120 are arranged sequentially at intervals along the circumference of the first magnetic element 110, so that magnetic field lines emanate from the first magnetic element 110 and enter the surrounding second magnetic elements 120 (or the magnetic field lines of the surrounding second magnetic elements 120 enter the first magnetic field lines).

[0068] As an optional implementation of the above embodiments, as shown in Figures 2 and 5, the first magnetic element 110 and the second magnetic element 120 abut against each other. In this embodiment, the abutment of the first magnetic element 110 and the second magnetic element 120 can improve the utilization rate of the magnetic field and reduce magnetic leakage. In this embodiment, the two sides of the first magnetic element 110 and the second magnetic element 120 abut together in the second direction, that is, there is no gap between them in the second direction.

[0069] As an optional implementation of the above embodiments, as shown in FIG6, the first magnetic component 110 includes a first coil, and the second magnetic component 120 includes a second coil; the first coil and the second coil generate different magnetic poles facing the receiving cavity when energized. Utilizing the principle of electromagnetism, a magnetic field of corresponding polarity is generated. The coil material is preferably copper coil or copper-clad aluminum, and the generated magnetic induction intensity is related to the applied voltage; the higher the voltage, the greater the magnetic induction intensity. Referring to FIG6, the first coil of the first magnetic component 110 and the second coil of the second magnetic component 120 are arranged adjacent to each other, with the current directions being clockwise and counterclockwise respectively. In this embodiment, the current of the first coil and / or the second coil can be adjusted to adjust the minimum magnetic induction intensity at a preset height position from the bottom wall, thereby adjusting the degree of concentration of magnetic field lines in the bottom area according to different ingredients.

[0070] In some embodiments, the first magnetic component 110 may include a first coil and a permanent magnet. When the first coil is energized, the magnetic poles of the magnetic field it generates are the same as the magnetic poles of the permanent magnet. The second magnetic component 120 may include a second coil and a permanent magnet. When the second coil is energized, the magnetic poles of the magnetic field it generates are the same as the magnetic poles of the permanent magnet. In this embodiment, when the first coil and / or the second coil are energized, the magnetic induction intensity generated by the permanent magnet can be adjusted to adjust the minimum magnetic induction intensity at a preset height position from the bottom wall, thereby adjusting the degree of concentration of magnetic field lines in the bottom area according to different ingredients.

[0071] As an optional embodiment of the above embodiments, at a predetermined height from the bottom wall within the receiving cavity, the magnetic induction intensity formed by the second magnetic element 120 and the second magnetic element 120 is at least 2mT. Referring to Figure 7, within the receiving cavity, the magnetic induction intensity B corresponding to the predetermined height ha from the bottom wall is the effective magnetic field intensity B. 有效 Generally, the preset height ha is set to at least 5cm, such as 5cm, 5.5cm, or 6cm. Within the range of 0 to the preset height from the bottom wall, the magnetic field strength is at least 2mT, so that the magnetic induction intensity of the generated magnetic field at the bottom is beneficial to improving the food preservation effect.

[0072] As an optional implementation of the above embodiments, the food storage container is constructed as a drawer. When the food storage container is used in a refrigerator, its drawer structure facilitates its movable connection with the refrigerator's inner liner, making it convenient to put in and take out food.

[0073] In some embodiments, the food storage container can also be used in cold chain transportation insulation scenarios.

[0074] This application also proposes a refrigerator, including an inner liner and a food storage container. The food storage container is disposed within the inner liner. In some embodiments, the food storage container can be configured as a drawer structure, disposed within the inner liner, and the inner liner can be pulled out. In some embodiments, the food storage container is detachably disposed within the inner liner. In some embodiments, the inner liner can be a freezing inner liner, a refrigerating inner liner, or a variable temperature inner liner. In this embodiment, the food storage container adopts some or all of the technical solutions of the foregoing embodiments, and therefore possesses some or all of the technical advantages of the foregoing embodiments.

Claims

1. A crisper, wherein, include: The box body includes a bottom wall and side walls, which together form a receiving cavity; A first magnetic element is disposed within the bottom wall; A second magnetic element is disposed within the bottom wall; wherein the magnetic poles of the first magnetic element facing the receiving cavity are opposite to the magnetic poles of the second magnetic element facing the receiving cavity.

2. The crisper drawer of claim 1, wherein, Both the first magnetic component and the second magnetic component are permanent magnets.

3. The crisper drawer of claim 2, wherein, The permanent magnet is one of rare earth permanent magnets, metal permanent magnets, ferrite permanent magnets, and rubber magnets.

4. The crisper drawer of claim 2, wherein, The bottom wall has a first direction and a second direction; Both the first magnetic element and the second magnetic element extend along the first direction; the first magnetic element and the second magnetic element are arranged sequentially along the second direction.

5. The crisper drawer of claim 4, wherein, The number of the first magnetic components is N, and the number of the second magnetic components is M; where 2≤N+M≤8.

6. The crisper drawer of claim 5, wherein, When 3≤N+M≤8, the first magnetic component and the second magnetic component are arranged alternately along the second direction.

7. The crisper drawer of claim 2, wherein, The second magnetic element is arranged around the first magnetic element.

8. The crisper drawer of claim 7, wherein, The first magnetic component is a circular ring structure, and the second magnetic components are arranged at intervals along the circumference of the first magnetic component.

9. The crisper drawer of any one of claims 1-6, wherein, The first magnetic element and the second magnetic element abut against each other.

10. The crisper drawer of claim 1, wherein, The first magnetic element includes a first coil, and the second magnetic element includes a second coil; the first coil and the second coil generate different magnetic poles facing the receiving cavity when energized.

11. The crisper drawer of claim 10, wherein, The currents of the first coil and the second coil are configured to be adjustable.

12. The crisper drawer of claim 1, wherein, At a predetermined height above the bottom wall within the accommodating cavity, the magnetic induction intensity formed by the first magnetic element and the second magnetic element is at least 2 mT.

13. The crisper drawer of claim 12, wherein, The preset height is at least 5cm.

14. The crisper drawer of claim 1, wherein, The bottom wall has a cavity, and the first magnetic component and the second magnetic component are disposed in the cavity.

15. The crisper drawer of claim 1, wherein, The bottom wall is provided with a groove, and the first magnetic component and the second magnetic component are disposed in the groove.

16. The crisper drawer of claim 1, wherein, The first magnetic element and the second magnetic element are disposed on the side of the bottom wall facing the receiving cavity or the side facing away from the receiving cavity.

17. The crisper drawer of claim 1, wherein, The first magnetic component and the second magnetic component are attached to or locked onto the bottom wall.

18. The crisper drawer of claim 1, wherein, The first magnetic component includes a first coil and a permanent magnet. When the first coil is energized, the magnetic poles of the magnetic field it generates are the same as the magnetic poles of the permanent magnet of the first magnetic component. The second magnetic component includes a second coil and a permanent magnet. When the second coil is energized, the magnetic poles of the magnetic field it generates are the same as the magnetic poles of the permanent magnet of the second magnetic component.

19. The crisper drawer of claim 1, wherein, The food storage container is constructed as a drawer.

20. A refrigerator, wherein, include: Inner liner; And the food preservation box according to any one of claims 1 to 19, wherein the food preservation box is disposed inside the inner liner.

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