Fresh-keeping storage container and refrigerator

Abstract

The utility model provides a fresh-keeping storage container and a refrigerator, and the fresh-keeping storage container comprises a storage box which is provided with a containing cavity; a first main magnetic member; a secondary magnetic member; and a second main magnetic member; the first main magnetic piece, the auxiliary magnetic piece and the second main magnetic piece are sequentially arranged on the storage box in the first direction of the storage box. The magnetic poles, facing the containing cavity, of the first main magnetic piece and the second main magnetic piece are opposite. The auxiliary magnetic piece is used for increasing the magnetic field intensity of the first main magnetic piece and the second main magnetic piece in the containing cavity and reducing the magnetic field intensity of the first main magnetic piece and the second main magnetic piece outside the storage box.

Description

Technical Field

[0001] This application relates to the technical field of refrigerator freshness preservation, and particularly to a freshness preservation storage container and a refrigerator. Background Art

[0002] With the improvement of living standards, users' demand for food ingredient freshness preservation is also increasing. Freshness preservation technologies have gradually evolved from the initial wet temperature control to controlled atmosphere freshness preservation, vacuum freshness preservation, electric field freshness preservation, and magnetic field freshness preservation. Among them, magnetic field freshness preservation has a better freshness preservation effect. Magnetic field freshness preservation makes diamagnetic water molecules, etc., change from disorder to order, thereby reducing biological metabolism, enzyme activity, etc., and achieving multiple freshness preservation effects such as high water retention, antioxidant, and antibacterial properties of food ingredients.

[0003] In the prior art, a magnetic member is arranged inside the freshness preservation container, and the magnetic field generated by it not only exists inside the container but also outside the container. The magnetic field outside the container has an adverse effect on the electronic devices outside the container, reducing the reliability, accuracy, sensitivity, etc. of the external electronic devices. Utility Model Content

[0004] The main purpose of this application is to provide a freshness preservation storage container, aiming to solve the technical problem of interference of magnetic field freshness preservation on external electronic devices.

[0005] An embodiment of this application provides a freshness preservation storage container, including:

[0006] A storage box having an accommodation cavity;

[0007] A first main magnetic member;

[0008] A secondary magnetic member; and

[0009] A second main magnetic member;

[0010] The first main magnetic member, the secondary magnetic member, and the second main magnetic member are sequentially arranged on the storage box along a first direction of the storage box; wherein, the magnetic poles of the first main magnetic member and the second main magnetic member facing the accommodation cavity are opposite; the secondary magnetic member is used to increase the magnetic field strength of the first main magnetic member and the second main magnetic member in the accommodation cavity and reduce the magnetic field strength of the first main magnetic member and the second main magnetic member outside the storage box.

[0011] Optionally, the magnetic pole of the secondary magnetic member facing the first main magnetic member is the same as the magnetic pole of the first main magnetic member facing the accommodation cavity; the magnetic pole of the secondary magnetic member facing the second main magnetic member is the same as the magnetic pole of the second main magnetic member facing the accommodation cavity.

[0012] Optionally, the width of the first main magnetic member is W1; the width of the second main magnetic member is W2; the width of the secondary magnetic member is W3;

[0013] Wherein, the ratio of W1 to W3 is 5:1 to 10:1; and / or the ratio of W2 to W3 is 5:1 to 10:1.

[0014] Optionally, the first main magnetic member and the second main magnetic member are alternately arranged along the first direction; the auxiliary magnetic member is arranged between any two adjacent first main magnetic members and second main magnetic members.

[0015] Optionally, the total number of the first main magnetic members and the second main magnetic members is N, wherein the value range of N is 3 to 8.

[0016] Optionally, the first main magnetic member, the auxiliary magnetic member, and the second main magnetic member are sequentially arranged at the bottom of the storage box along the first direction of the storage box.

[0017] Optionally, the first main magnetic member includes a permanent magnet and / or a first coil; and / or

[0018] The second main magnetic member is a permanent magnet and / or includes a second coil; and / or

[0019] The auxiliary magnetic member is a permanent magnet and / or includes a third coil.

[0020] Optionally, at a first preset distance outside the fresh-keeping storage container, the magnetic induction intensities of the first main magnetic member, the auxiliary magnetic member, and the second main magnetic member are lower than or equal to 0.5 mT.

[0021] Optionally, at a second preset distance from the storage box in the accommodation cavity, the magnetic induction intensities of the first main magnetic member, the auxiliary magnetic member, and the second main magnetic member are greater than or equal to 2 mT.

[0022] An embodiment of the present application further provides a refrigerator, including: an inner container; and the fresh-keeping storage container as described above, and the fresh-keeping storage container is arranged in the inner container.

[0023] In the technical solution of the embodiment of the present application, the first main magnetic member, the auxiliary magnetic member, and the second main magnetic member are sequentially arranged on the storage box along its first direction; the magnetic poles of the first main magnetic member and the second main magnetic member facing the accommodation cavity are opposite; therefore, in the accommodation cavity, the magnetic induction lines go from the first main magnetic member to the second main magnetic member (or from the second main magnetic member to the first main magnetic member), and at the same time, outside the accommodation cavity, the magnetic induction lines go from the second main magnetic member to the first main magnetic member (or from the first main magnetic member to the second main magnetic member); moreover, an auxiliary magnetic member is arranged between the two, and the auxiliary magnetic member increases the magnetic field intensity of the first main magnetic member and the second main magnetic member in the accommodation cavity and reduces the magnetic field intensity of the first main magnetic member and the second main magnetic member outside the storage box, thereby reducing the magnetic field intensity of the magnetic member outside the storage container to achieve a reduction in the intensity of the magnetic field interference on the internal electronic devices; furthermore, the technical solution of the embodiment of the present application can also increase the magnetic field intensity in the accommodation cavity and improve the freshness preservation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0025] Figure 1 Structural schematic diagram of a freshness preservation storage container provided by an embodiment of the present application;

[0026] Figure 2 Structural schematic diagram of a magnetic component provided by an embodiment of the present application;

[0027] Figure 3 Magnetic field distribution schematic diagram of a magnetic component provided by an embodiment of the present application;

[0028] Figure 4 Principle schematic diagram of improving the external magnetic field intensity of a magnetic component provided by an embodiment of the present application;

[0029] Figure 5 Structural schematic diagram of another magnetic component provided by an embodiment of the present application;

[0030] Figure 6 Structural schematic diagram of another magnetic component provided by an embodiment of the present application;

[0031] Figure 7 Schematic diagram of the change of the magnetic field intensity of the freshness preservation storage container provided by an embodiment of the present application with distance;

[0032] Figure 8 A comparison diagram showing the change of magnetic field strength with distance between the fresh-keeping storage container provided by the embodiment of the present application and the prior art;

[0033] Figure 9 A schematic diagram showing the change of magnetic field strength with the number of main magnets in the fresh-keeping storage container provided by the embodiment of the present application.

[0034] List of reference numerals

[0035] 01 Storage box 120 Second main magnetic part 02 Magnetic component 130 Third main magnetic part 110 First main magnetic part Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0039] In addition, if the embodiments of the present application involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0040] Magnetic field preservation utilizes a weak magnetic field signal to make diamagnetic water molecules, etc. change from disorder to order, thereby reducing biological metabolism, enzyme activity, etc., and achieving multiple preservation effects such as high water retention, antioxidant, and antibacterial properties of food ingredients. The magnetic field has a certain diffusivity and will cause certain interference to the electrical components around it. In the prior art, for example, a magnetic component (such as a permanent magnet or an electromagnet) is provided inside a refrigerator. The magnetic field generated by the magnetic component exists not only inside the refrigerator but also outside the refrigerator. The magnetic field outside the refrigerator will interfere with the electronic components inside the refrigerator, reducing the reliability, accuracy, or sensitivity of the electronic components. Therefore, the embodiments of the present application provide a fresh-keeping storage container, aiming to reduce the magnetic field intensity of the magnetic component outside the storage container to reduce the intensity of the interference caused by the magnetic field to the electronic components inside the refrigerator.

[0041] Refer to Figures 1 to 3 As shown, the embodiments of the present application provide a fresh-keeping storage container, including:

[0042] A storage box 01, the storage box 01 having a receiving cavity;

[0043] A first main magnetic component 110;

[0044] A secondary magnetic component 130; and

[0045] A second main magnetic component 120;

[0046] The first main magnetic component 110, the secondary magnetic component 130, and the second main magnetic component 120 are sequentially arranged on the storage box 01 along a first direction of the storage box 01; wherein, the magnetic poles of the first main magnetic component 110 and the second main magnetic component 120 facing the receiving cavity are opposite; the secondary magnetic component 130 is used to increase the magnetic field intensity of the first main magnetic component 110 and the second main magnetic component 120 in the receiving cavity and reduce the magnetic field intensity of the first main magnetic component 110 and the second main magnetic component 120 outside the storage box 01.

[0047] In the technical solution of the embodiment of the present application, the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are sequentially arranged on the storage box 01 along its first direction; the magnetic poles of the first main magnetic member 110 and the second main magnetic member 120 facing the accommodation cavity are opposite; thus, in the accommodation cavity, the magnetic induction lines go from the first main magnetic member 110 to the second main magnetic member 120 (or from the second main magnetic member 120 to the first main magnetic member 110), and at the same time, outside the accommodation cavity, the magnetic induction lines go from the second main magnetic member 120 to the first main magnetic member 110 (or from the first main magnetic member 110 to the second main magnetic member 120); moreover, an auxiliary magnetic member 130 is arranged between the two, and the auxiliary magnetic member 130 increases the magnetic field intensity of the first main magnetic member 110 and the second main magnetic member 120 in the accommodation cavity and reduces the magnetic field intensity of the first main magnetic member 110 and the second main magnetic member 120 outside the storage box 01, thereby reducing the magnetic field intensity of the magnetic member outside the storage container to achieve the intensity of reducing the interference of the magnetic field on the internal electronic devices; moreover, the technical solution of the embodiment of the present application can also increase the magnetic field intensity in the accommodation cavity and improve the freshness preservation effect.

[0048] Refer to Figure 4 As shown, the upper side of the magnetic component 02 composed of the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 is represented as the inside of the accommodation cavity, and the lower side is the outside of the storage box 01. On the upper side, the direction of the magnetic induction lines from the first main magnetic member 110 to the second main magnetic member 120 is the same as the direction of the magnetic induction lines of the auxiliary magnetic member 130, thereby increasing the magnetic field intensity of the first main magnetic member 110 and the second main magnetic member 120 in the accommodation cavity; on the lower side, the direction of the magnetic induction lines from the first main magnetic member 110 to the second main magnetic member 120 is opposite to the direction of the magnetic induction lines of the auxiliary magnetic member 130, canceling at least a part, thereby weakening the magnetic field intensity of the first main magnetic member 110 and the second main magnetic member 120 outside the storage box 01.

[0049] In the technical solution of the embodiment of the present application, the magnetic component composed of the first main magnetic member, the auxiliary magnetic member, and the second main magnetic member can be placed on each wall surface of the storage box. For the freshness preservation of the refrigerator, since more food is concentrated at the bottom, it is usually arranged at the bottom of the storage box.

[0050] As Figure 7 shown, the curve of the magnetic induction intensity outside the freshness preservation storage container changing with the distance from the storage box 01 is S2, and the curve of the magnetic induction intensity in the accommodation cavity changing with the distance from the storage box 01 is S1; the 0 point of the abscissa represents the position where the magnetic component 02 is set, and the two curves are asymmetric; at the same distance position, the magnetic induction intensity outside is significantly reduced, and the magnetic induction intensity inside is significantly increased.

[0051] As Figure 8 shown, in the prior art, the technical solution of using a single magnet has a symmetric magnetic induction intensity curve inside and outside the fresh-keeping box. After adopting the technical solution of the present application, the magnetic field intensity inside is significantly increased, and the magnetic field intensity outside is significantly decreased.

[0052] In the embodiment, the first direction may be the length direction / height direction / width direction of the storage and fresh-keeping container. The storage and fresh-keeping container further has a second direction and a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0053] As an alternative implementation manner of the above embodiment, the magnetic pole of the auxiliary magnetic member 130 facing the first main magnetic member 110 is the same as the magnetic pole of the first main magnetic member 110 facing the accommodation cavity; the magnetic pole of the auxiliary magnetic member 130 facing the second main magnetic member 120 is the same as the magnetic pole of the second main magnetic member 120 facing the accommodation cavity. As Figure 3 and Figure 4 shown, for example, if the magnetic pole of the first main magnetic member 110 facing the accommodation cavity is the N pole, and the magnetic pole of the second main magnetic member 120 facing the accommodation cavity is the S pole, then the magnetic pole of the auxiliary magnetic member 130 facing the first main magnetic member 110 is the N pole, and the magnetic pole of the auxiliary magnetic member 130 facing the second main magnetic member 120 is the S pole. With such a setting, on the upper side, the magnetic induction line direction from the first main magnetic member 110 to the second main magnetic member 120 is the same as the magnetic induction line direction of the auxiliary magnetic member 130, thereby increasing the magnetic field intensity of the first main magnetic member 110 and the second main magnetic member 120 in the accommodation cavity; on the lower side, the magnetic induction line direction from the first main magnetic member 110 to the second main magnetic member 120 is opposite to the magnetic induction line direction of the auxiliary magnetic member 130, canceling at least a part, thereby weakening the magnetic field intensity of the first main magnetic member 110 and the second main magnetic member 120 outside the storage box 01.

[0054] As an alternative embodiment of the above embodiment, the width of the first main magnetic member 110 is W1; the width of the second main magnetic member 120 is W2; the width of the auxiliary magnetic member 130 is W3. Wherein, the ratio of W1 to W3 is 5:1 to 10:1; and / or the ratio of W2 to W3 is 5:1 to 10:1. In the embodiment, the width is the dimension of the first main magnetic member 110, the second main magnetic member 120, and the auxiliary magnetic member 130 in the first direction. In the embodiment, the magnetic field strength in the accommodation cavity mainly depends on the magnetic circuit between the first main magnetic member 110 and the second main magnetic member 120, while the auxiliary magnetic member 130 mainly enhances the magnetic field strength of the magnetic circuit and weakens the magnetic field strength of the external magnetic circuit. Moreover, setting the ratio of W1 to W3 to be 5:1 to 10:1; and / or the ratio of W2 to W3 to be 5:1 to 10:1 is mainly to ensure that there is basically no magnetic flux between the auxiliary magnetic members 130.

[0055] In some embodiments, the width W1 of the first main magnetic member 110 and the width W2 of the second main magnetic member 120 are set to be the same.

[0056] Therefore, in some embodiments, the width ratio of the auxiliary magnetic member 130 to the width of the first main magnetic member 110 and the second main magnetic member 120 is set to ensure that there is basically no magnetic flux between the auxiliary magnetic members 130.

[0057] As an alternative embodiment of the above embodiment, the first main magnetic member 110 and the second main magnetic member 120 are alternately arranged along the first direction; the auxiliary magnetic member 130 is provided between any two adjacent first main magnetic members 110 and second main magnetic members 120. By this setting, the magnetic field strength in the region near the magnetic component 02 inside can be effectively enhanced and the interference of the magnetic field to the outside can be reduced.

[0058] From Figure 8 it can be seen that the variation law of the magnetic induction intensity inside the accommodation cavity is as follows:

[0059] a. When the distance from the magnetic component 02 is in the range of 0 to ha and ha≥5 cm, B3>B2>B1, indicating that the magnetic field is mainly concentrated in the bottom space area inside the drawer at this time; (N in BN represents the number of main magnets, such as B3 represents the magnetic field strength of 3 main magnets.)

[0060] b. When the distance from the magnetic component 02 is in the range of ha to hb, B2>B3>B1. In this height range, the magnetic induction intensity generated by the scheme of two main magnets exceeds that of three main magnets, but the magnetic induction intensity is still higher than that of the scheme of a single magnet.

[0061] c. When the distance from the magnetic component 02 is in the range of hb to hc, B2 > B1 > B3. Within this height range, the magnetic induction intensity of a single main magnet exceeds that of three main magnets;

[0062] d When the distance from the magnetic component 02 > hc, B1 > B2 > B3. Within this height range, the magnetic induction intensity of a single main magnet is the strongest, exceeding that of two and three main magnets. Because the magnetic field direction of a single magnet is radial, while that of two and three main magnets is aggregated, the magnetic field of the combined design of two and three main magnets is mainly concentrated at the bottom, while the magnetic field of a single magnet diverges in the drawer space; this can effectively preserve the freshness of the ingredients gathered at the bottom of the accommodation cavity.

[0063] (2) The variation law of the magnetic induction intensity outside the drawer is:

[0064] B3 < B2 < B1. For the combined design scheme of three magnets, the magnetic induction intensity at hd (≤2 cm) < B limit (0.5 mT), indicating that through the combined design, the magnetic induction intensity outside the accommodation cavity is effectively reduced, avoiding damage to other components outside the storage box 01 by the magnetic field.

[0065] From the above variation laws, it can be seen that compared with the traditional single magnet, through the technical solution provided by the embodiment of the present application, the magnetic induction intensity inside the accommodation cavity can be effectively increased, and the magnetic induction intensity outside the accommodation cavity can be weakened. It solves the problem that the magnetic induction lines of the traditional single magnetic sheet diffuse to the outside, with low utilization efficiency, and the leaked magnetic field will affect other components outside the accommodation cavity, realizing an increase in the magnetic induction intensity inside the accommodation cavity and a decrease in the magnetic induction intensity outside the accommodation cavity, effectively acting on the ingredients and improving the freshness preservation effect of the ingredients. Compared with the prior art, the technical solution of the present application has the following technical advantages, which are specifically summarized as follows:

[0066] (1) Adopting a combined design with magnetic self - shielding characteristics, it can form unilateral enhancement and have magnetic self - shielding characteristics on the opposite side, thereby realizing an increase in the intensity inside the accommodation cavity and a decrease outside.

[0067] (2) It realizes a high magnetic field intensity inside the accommodation cavity space, with high magnetic field utilization efficiency. Compared with a permanent magnet of the same volume, the magnetic field is enhanced;

[0068] (3) Magnetic leakage is reduced, and there is no need to use magnetic conductive or magnetic shielding materials for shielding.

[0069] As an alternative implementation of the above - mentioned embodiment, the total number of the first main magnetic parts 110 and the second main magnetic parts 120 is N, where the value range of N is 3 to 8. Refer to Figure 9 As shown, the curve of the magnetic induction intensity inside and outside the accommodation cavity changing with the number N of main magnets.

[0070] a. Among them, B effective represents the magnetic induction intensity at which the magnetic field inside the accommodation cavity can function, and it is required to satisfy B effective ≥ 2 mT at a height h (at least 5 cm). S11 represents the curve of the change in magnetic induction intensity inside the accommodation cavity with the change in the number of main magnets. The magnetic induction intensity at a height h inside the accommodation cavity first increases and then decreases as the number of main magnets increases;

[0071] b. Among them, B limit represents the limit value of the magnetic field outside the accommodation cavity to prevent other components outside the accommodation cavity from being damaged due to magnetic leakage. It is required to satisfy B limit ≤ 0.5 mT at a height h' (at most 2 cm) outside the accommodation cavity. S22 represents the curve of the change in magnetic induction intensity outside the accommodation cavity with the change in the number of main magnets. The magnetic induction intensity at a height h' outside the accommodation cavity first decreases and then increases as the number of main magnets increases;

[0072] c. Therefore, in order to ensure the fresh-keeping effect of the magnetic field on the food ingredients and avoid magnetic field leakage, the number of main magnets is preferably 3 to 8 pieces. Because when the number of main magnets (N) < 3 pieces, the magnetic induction intensity at the bottom > 0.5 mT, the shielding effect is limited, and the magnetic induction lines diffuse into space, affecting other components outside the accommodation cavity; when the number of magnetic sheets > 8 pieces, the magnetic shielding effect outside the accommodation cavity weakens and exceeds the limit.

[0073] Therefore, in some technical solutions of the embodiments of the present application, the total number of the first main magnetic member 110 and the second main magnetic member 120 is N, where the value range of N is 3 to 8. Correspondingly, the number of the auxiliary magnetic members 130 is N - 1.

[0074] As an alternative implementation manner of the above embodiment, the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are sequentially arranged at the bottom of the storage box 01 along the first direction of the storage box 01. In the embodiment, more food ingredients are stored and concentrated at the bottom of the storage box 01. Therefore, the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are sequentially arranged at the bottom of the storage box 01 along the first direction of the storage box 01. As can be seen from the attached Figure 7 It can be seen that the magnetic field intensity gradually weakens from the bottom upwards and is stronger at the bottom, which is beneficial to the fresh-keeping effect of the food ingredients.

[0075] As an alternative embodiment of the above embodiment, the first main magnetic member 110 includes a permanent magnet and / or a first coil; and / or the second main magnetic member 120 is a permanent magnet and / or includes a second coil; and / or the auxiliary magnetic member 130 is a permanent magnet and / or includes a third coil. In the embodiment, the permanent magnet may be a rare earth permanent magnet (such as neodymium iron boron, samarium cobalt, etc.), a metal permanent magnet (such as AlNiCo, etc.), a ferrite permanent magnet, a rubber magnet, or other permanent magnets. Based on cost and manufacturability, a rubber magnet is preferably used, which is formed by compounding ferrite magnetic powder with synthetic rubber and then through a process to form a magnet with certain softness and elasticity. In the embodiment, the principle of electromagnetism can also be utilized. By energizing a metal coil, a magnetic field with the same direction is generated. The metal coil is preferably a copper coil, a copper-clad aluminum coil, etc. In some embodiments, the magnetic member can also be a combination of the two. When using a combination of the two, the magnetic field directions generated by the permanent magnet and the coil need to be kept consistent.

[0076] In some embodiments, the first main magnetic member 110 is a permanent magnet; the second main magnetic member 120 is a permanent magnet; the auxiliary magnetic member 130 includes a third coil. By passing currents of different magnitudes through the third coil, the adjustment of the enhancement amplitude of the internal magnetic field strength and the weakening amplitude of the external magnetic field strength can be achieved.

[0077] In some embodiments, the first main magnetic member 110 includes a first coil; the second main magnetic member 120 includes a second coil; the auxiliary magnetic member 130 is a permanent magnet. By passing currents of different magnitudes through the first coil and the second coil, the internal magnetic field strength and the weakening magnetic field strength can be adjusted under the condition that the auxiliary magnetic member 130 increases the internal magnetic field strength by a certain amount and weakens the external magnetic field strength by a certain amount.

[0078] The above embodiments can be specifically set according to specific application scenarios (such as refrigeration, freezing, or variable temperature). As an alternative embodiment of the above embodiment, at a first preset distance outside the fresh-keeping storage container, the magnetic induction intensities of the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are lower than or equal to 0.5 mT. Refer to Figure 7 As shown, the curve of the magnetic induction intensity outside the fresh-keeping storage container with respect to the distance from the storage box 01 is S2. From the change curve S2, the first preset distance is h'. At the position of h', the magnetic induction intensities of the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are lower than or equal to 0.5 mT. Therefore, the magnetic induction intensity at a position greater than h' is lower than 0.5 mT; the range of the external high magnetic field strength where the magnetic component 02 is set is significantly reduced, which is beneficial to saving the space of the refrigerator.

[0079] In the embodiment, the preset distance can be 2 mm, 1.5 mm, or 2.5 mm.

[0080] As an alternative implementation of the above embodiment, the magnetic induction intensity of the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 at a second preset distance from the storage box 01 in the accommodation cavity is greater than or equal to 2 mT. Refer to Figure 7 As shown, the curve of the magnetic induction intensity in the accommodation cavity changing with the distance from the storage box 01 is S1. From the change curve S1, it can be observed that the second preset distance is h. At the position of h, the magnetic induction intensities of the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are greater than or equal to 2 mT. Therefore, the magnetic induction intensity at a position less than h is greater than 2 mT, thereby effectively increasing the storage duration of the food ingredients.

[0081] In the embodiment, the first main magnetic member 110, the auxiliary magnetic member 130, and the second main magnetic member 120 are arranged at the bottom. The magnetic induction intensity at a second preset distance (preset height) from the storage box 01 in the accommodation cavity is greater than or equal to 2 mT. Therefore, the magnetic induction intensity at a position less than h is greater than 2 mT. When storing food ingredients, they are more concentrated at the bottom, thereby effectively increasing the storage duration of the food ingredients.

[0082] In the embodiment, the second preset distance is 5 mm, 4.5 mm, or 6 mm.

[0083] The embodiment of the present application also provides a refrigerator, including: an inner container; and a fresh-keeping storage container disposed inside the inner container. The fresh-keeping storage container adopts part or all of the technical solutions of the foregoing embodiment. Therefore, the refrigerator has the technical effects of the foregoing embodiment or all of the technical effects. In the embodiment, the inner container can be a refrigerating inner container, a freezing inner container, or a variable-temperature inner container. The fresh-keeping storage container can be configured in the form of a drawer.

[0084] The above are only alternative embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made under the application concept of the present application by using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A fresh-keeping storage container, characterized in that: include: A storage box, wherein the storage box has a receiving cavity; a first main magnetic member; Auxiliary magnetic parts; and a second main magnetic member; Wherein, the first main magnetic component, the secondary magnetic component and the second main magnetic component are arranged on the storage box in sequence along the first direction of the storage box; wherein, the magnetic poles of the first main magnetic component and the second main magnetic component facing the accommodating cavity are opposite; the secondary magnetic component is used to increase the magnetic field strength of the first main magnetic component and the second main magnetic component in the accommodating cavity and reduce the magnetic field strength of the first main magnetic component and the second main magnetic component outside the storage box.

2. The fresh-keeping storage container according to claim 1, characterized in that: The magnetic pole of the secondary magnetic component facing the first main magnetic component is the same as the magnetic pole of the first main magnetic component facing the accommodating cavity; the magnetic pole of the secondary magnetic component facing the second main magnetic component is the same as the magnetic pole of the second main magnetic component facing the accommodating cavity.

3. The fresh-keeping storage container according to claim 2, characterized in that: The width of the first main magnetic component is W1; the width of the second main magnetic component is W2; the width of the auxiliary magnetic component is W3; Wherein, the ratio of W1 to W3 is 5:1 to 10:1; and / or the ratio of W2 to W3 is 5:1 to 10:

1.

4. The fresh-keeping storage container according to any one of claims 1 to 3, characterized in that: The first main magnetic components and the second main magnetic components are alternately arranged along the first direction; and the auxiliary magnetic component is arranged between any two adjacent first main magnetic components and the second main magnetic components.

5. The fresh-keeping storage container according to any one of claims 1 to 3, characterized in that: The number of the first main magnetic components and the number of the second main magnetic components is N, wherein the value range of N is 3 to 8.

6. The fresh-keeping storage container according to any one of claims 1 to 3, characterized in that: The first main magnetic member, the secondary magnetic member and the second main magnetic member are sequentially arranged at the bottom of the storage box along a first direction of the storage box.

7. The fresh-keeping storage container according to any one of claims 1 to 3, characterized in that: The first main magnetic component includes a permanent magnet and / or a first coil; and / or The second main magnetic member is a permanent magnet and / or includes a second coil; and / or The auxiliary magnetic component is a permanent magnet and / or includes a third coil.

8. The fresh-keeping storage container according to any one of claims 1 to 3, characterized in that: At a first preset distance outside the fresh-keeping storage container, the magnetic induction intensities of the first main magnetic component, the secondary magnetic component, and the second main magnetic component are less than or equal to 0.5 mT.

9. The fresh-keeping storage container according to any one of claims 1 to 3, characterized in that: The magnetic induction intensity of the first main magnetic component, the secondary magnetic component and the second main magnetic component at a second preset distance from the storage box in the accommodating cavity is greater than or equal to 2 mT.

10. A refrigerator, characterized in that: include: Liner; And the fresh-keeping storage container according to any one of claims 1 to 9, wherein the fresh-keeping storage container is arranged in the inner container.

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