Magnetic Field Freshness-Preserving Storage Container and Refrigerator

Abstract

The present invention provides a magnetic field fresh-keeping storage container and a refrigerator. The magnetic field fresh-keeping storage container includes: a storage box, which defines a storage space for placing objects to be stored therein; one or more magnetic conductive annular bands, which are respectively sleeved on the outer periphery of the storage box; a plurality of magnetic members, which are respectively arranged between the storage box and the one or more magnetic conductive annular bands and are used to form a magnetic field in the storage space, and an annular magnetic conduction path is formed outside the storage space by using the one or more magnetic conductive annular bands. In the solution of the present invention, the magnetic field helps to improve the storage quality and extend the fresh-keeping period. The usage amounts of the magnetic material and the magnetic conductive material are small, avoiding the cost increase and weight increase caused by using too many or too large magnetic members. The refrigerator of the present invention provides a new fresh-keeping function, meeting the increasing usage requirements of users for smart refrigerators and further satisfying the quality requirements of users for smart homes and smart life.

Description

Technical Field

[0001] The present invention relates to refrigeration and freezing equipment, and particularly to a magnetic field fresh-keeping storage container and a refrigerator. Background Art

[0002] Users are paying more and more attention to the fresh-keeping effect of the stored items in the refrigerator. For ingredients such as meat, fish, and shrimp, problems such as juice loss during storage, resulting in a deteriorated taste and a darkened color, are likely to occur. Especially for some high-end ingredients, the quality will be greatly reduced after being stored for a period of time.

[0003] Theoretical research has found that the magnetic field has a great influence on the formation of ice crystals during the freezing process. At present, the refrigerator field is also actively exploring the introduction of magnetic fields into fresh-keeping storage. However, when actually applied in a refrigerator, in addition to generating a magnetic field in the storage space to improve the fresh-keeping storage quality of the stored items, the magnetic components will also spread outside the storage space. Long-term use may cause the surrounding components to be magnetized, affecting the normal use of the user. Summary of the Invention

[0004] An object of the present invention is to provide a magnetic field fresh-keeping storage container and a refrigerator that avoid the adverse effects of the magnetic field on the outside of the storage space.

[0005] A further object of the present invention is to facilitate the installation and application of the magnetic field fresh-keeping storage container in the refrigerator.

[0006] A further object of the present invention is to improve the storage quality of the stored items.

[0007] In particular, the present invention provides a magnetic field fresh-keeping storage container, which includes:

[0008] A storage box that defines a storage space for placing the stored items;

[0009] One or more magnetic conductive rings, respectively sleeved on the outer periphery of the storage box;

[0010] A plurality of magnetic components, respectively arranged between the storage box and the one or more magnetic conductive rings, and used to form a magnetic field in the storage space, and use the one or more magnetic conductive rings to form an annular magnetic conduction path outside the storage space.

[0011] Optionally, the storage space is generally in a cuboid shape, and there are two magnetic components, which are respectively arranged on a set of opposite side surfaces of the storage space.

[0012] Optionally, the two magnetic components are respectively arranged on the top surface and the bottom surface of the storage space; or the two magnetic components are respectively arranged on the side surfaces on the transverse two sides of the storage space, and the shape of each magnetic component is generally consistent with the shape of the side surface where it is located.

[0013] Optionally, there are multiple magnetic conduction belt loops, which are arranged at intervals along the front-back depth direction of the storage box.

[0014] Optionally, there is one magnetic conduction belt loop, which is arranged in the middle area in the front-back depth direction of the storage box and is opposite to the middle parts of the two magnetic members in the front-back depth direction.

[0015] Optionally, the width of the magnetic conduction belt loop is one-half to one-tenth of the length of the two magnetic members in the front-back depth direction.

[0016] Optionally, the projection of the storage space on the plane where the magnetic member is located is within the outer contour range of the magnetic member.

[0017] Optionally, each magnetic member includes an electromagnetic ring, and an electromagnetic coil is wound along the circumferential direction inside the electromagnetic ring. After the electromagnetic coil is energized, an electromagnetic field is formed in the storage space, or

[0018] each magnetic member includes an electromagnetic ring and a permanent magnet plate. An electromagnetic coil is wound along the circumferential direction inside the electromagnetic ring and forms an electromagnetic field after being energized. The permanent magnet plate is arranged at the central through hole of the electromagnetic ring or is arranged against the electromagnetic ring and is used to generate a permanent magnetic field consistent with the magnetic field direction of the electromagnetic field.

[0019] Optionally, the above-mentioned magnetic field fresh-keeping storage container further includes:

[0020] a cylinder body with a forward opening;

[0021] The storage box is a drawer and is slidably arranged inside the cylinder body.

[0022] According to another aspect of the present invention, there is provided a refrigerator, which includes:

[0023] a box body, inside which a storage compartment is defined;

[0024] Any of the above-mentioned magnetic field fresh-keeping storage containers is arranged inside the storage compartment.

[0025] In the magnetic field fresh-keeping storage container of the present invention, multiple magnetic members are used to form a magnetic field in the storage space. One or more magnetic conduction belt loops are arranged on the outer periphery of the storage box. The magnetic conduction belt loops can gather the magnetic field of the magnetic members towards the outside of the storage space, form an annular magnetic conduction path outside the storage space, reduce the diffusion of the magnetic field to the outside, and reduce the influence on other components outside the magnetic field fresh-keeping storage container. In addition, the magnetic conduction belt loops can also make the magnetic field inside the storage space more uniform, and reduce the usage amount of magnetic materials and magnetic conduction materials, avoiding the cost increase and weight increase caused by using too many or too large magnetic members.

[0026] Furthermore, for the magnetic field fresh-keeping storage container of the present invention, the magnetic member is used to form a magnetic field in the storage space. The magnetic field helps to improve the storage quality, can shorten the freezing time, reduce the juice loss rate and nutrient loss of food, reduce the number of microorganisms and bacteria, and extend the fresh-keeping period.

[0027] Furthermore, for the magnetic field fresh-keeping storage container of the present invention, the magnetic member can use an electromagnetic loop. After being energized, a magnetic field is formed. And by optimizing the structures of the magnetic member and the magnetic conduction ring belt, the structure of the magnetic field fresh-keeping storage container is made more compact, especially suitable for the structure of a storage drawer, and magnetic field fresh-keeping is realized in a relatively flat storage space. The magnetic member has a variety of optional structures and is selected according to the structural characteristics of the storage box, improving the usability and flexibility of adjustment.

[0028] Furthermore, for the refrigerator of the present invention, the above-mentioned magnetic field fresh-keeping storage container is provided, so that the food ingredients are stored in a magnetic field environment, inhibiting the growth of ice crystal nuclei. The ice crystal growth rate is higher than the water molecule migration rate, and the generated ice crystals are smaller, thereby reducing the damage to cells, avoiding juice loss, ensuring a better taste of the food ingredients, improving the freezing storage quality, and meeting the storage quality requirements of users for precious food ingredients.

[0029] Furthermore, for the refrigerator of the present invention, the storage quality is improved by the magnetic field, which can provide a new fresh-keeping function for the smart refrigerator, meeting the increasing usage requirements of users for smart refrigerators, and further meeting the quality requirements of users for smart homes and smart life.

[0030] Based on the following detailed description of specific embodiments of the present invention in conjunction with the drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0032] Figure 1 is a schematic perspective view of a refrigerator with a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0033] Figure 2 is a schematic view of the magnetic field fresh-keeping storage container as a refrigerator drawer according to an embodiment of the present invention;

[0034] Figure 3 is a schematic view of the magnetic member in the magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0035] Figure 4Schematic diagram of a magnetic component in a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0036] Figure 5 Schematic diagram of a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0037] Figure 6 is Figure 5 Exploded view of components of the magnetic field fresh-keeping storage container shown;

[0038] Figure 7 Schematic diagram of a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0039] Figure 8 is Figure 7 Exploded view of components of the magnetic field fresh-keeping storage container shown;

[0040] Figure 9 Block diagram of a control system of a refrigerator having a magnetic field fresh-keeping storage container according to an embodiment of the present invention. Detailed implementation manners

[0041] Figure 1 Schematic perspective view of a refrigerator 10 having a magnetic field fresh-keeping storage container 200 according to an embodiment of the present invention. The refrigerator 10 of this embodiment generally may include a box body 120, a door body 110, and a refrigeration system (not shown in the figure). At least one front-side open storage compartment may be defined within the box body 120, usually multiple, such as a refrigerating storage compartment, a freezing storage compartment, a variable-temperature storage compartment, and the like. The specific number and functions of the storage compartments may be configured according to pre-set requirements.

[0042] The refrigerator 10 of this embodiment may be an air-cooled refrigerator. An air duct system is provided within the box body 120. The refrigerating air flow that has been heat-exchanged by a heat exchanger (evaporator) is sent to the storage compartment through an air supply opening by a blower, and then returns to the air duct through a return air opening to achieve refrigeration. Since the box body 120, the door body 110, and the refrigeration system itself of such refrigerators are well-known and easy to implement by those skilled in the art, in order not to obscure and blur the inventive points of the present application, the box body 120, the door body 110, and the refrigeration system itself will not be described in detail hereinafter.

[0043] One or more storage compartments inside the refrigerator 10 may be provided with a magnetic field fresh-keeping storage container 200. When the magnetic field fresh-keeping storage container 200 is placed in the freezing storage compartment, it can be used for freezing and fresh-keeping of frozen food materials, inhibiting the growth of ice crystal nuclei, making the ice crystal growth rate higher than the water molecule migration rate, resulting in relatively small ice crystals, thereby reducing the damage to cells, avoiding juice loss, accelerating the freezing process, and shortening the freezing time. When the magnetic field fresh-keeping storage container 200 is placed in the refrigerating storage compartment, it can reduce the speed of the oxidation-reduction reaction of the food materials, reduce the loss of nutrients and moisture, prevent the food materials from discoloring, inhibit the growth of bacteria, and extend the fresh-keeping period of the food materials.

[0044] The number of the magnetic field fresh-keeping storage containers 200 and the storage compartments where they are arranged can be configured according to user needs. For example, one or more magnetic field fresh-keeping storage containers 200 can be provided inside the refrigerator 10. The magnetic field fresh-keeping storage containers 200 can be arranged in the refrigerating storage compartment, the freezing storage compartment, or the variable-temperature storage compartment, and magnetic field-assisted fresh-keeping can be carried out in the above-mentioned storage compartments. The magnetic field fresh-keeping storage container 200 can also be an independent compartment of the refrigerator 10, and the refrigerator 10 can independently control its temperature.

[0045] Figure 2 It is a schematic diagram of the magnetic field fresh-keeping storage container 200 as a refrigerator drawer according to an embodiment of the present invention.

[0046] Generally, the magnetic field fresh-keeping storage container 200 may include: a storage box 210, one or more magnetic conduction belts 230, and a plurality of magnetic members 220. A storage space 212 for placing the stored objects is defined inside the storage box 210, and the storage box 210 can be in the shape of a box body. In some embodiments, the storage box 210 can be in the shape of an overall flat cuboid (that is, the distance in the height direction is significantly smaller than the distance in the depth direction and the distance in the horizontal left and right directions). The storage box 210 can be a drawer structure.

[0047] The magnetic field fresh-keeping storage container 200 may further include a cylinder body 211. The cylinder body 211 has a forward opening. The storage box 210 is a drawer and is slidably disposed within the cylinder body 211. The top of the storage box 210 has an access opening for placing and taking items, and after being pulled out of the cylinder body 211, the access opening is exposed. After the storage box 210 is pushed into the cylinder body 211, an independent storage space 212 can be formed therein. The storage box 210 has a front end cover 214, and the front end cover 214 abuts against the frame body at the front end of the cylinder body 211. A sealing structure may be provided between the front end cover 214 and the cylinder body 211, so that the storage space 212 is relatively sealed. An air supply opening and an air return opening (not shown in the figure) may also be provided on the magnetic field fresh-keeping storage container 200 for introducing external refrigerated air flow into the magnetic field fresh-keeping storage container 200 and re-supplying it outside the storage box 210 after heat exchange. The positions of the air supply opening and the air return opening may be set according to the air supply duct, the air return duct of the refrigerator 10 and the structure of the storage compartment. Since the structure of the drawer inside the refrigerator and the refrigeration method itself are well-known to those skilled in the art, the subsequent description of this embodiment will not be elaborated.

[0048] One or more magnetic conduction ring belts 230 are respectively sleeved on the outer periphery of the storage box 210. The magnetic conduction ring belts 230 may surround the upper, lower, left and right sides of the storage box 210, that is, surround along the longitudinal direction of the storage box 210. Alternatively, the magnetic conduction ring belts 230 may also surround the front, back, left and right sides of the storage box 210, that is, surround along the transverse direction of the storage box 210. For a structure in which the storage box 210 is flat as a whole, especially when the storage box 210 is in the form of a drawer, the magnetic conduction ring belts 230 may surround along the longitudinal direction of the storage box 210. In the case of arranging a plurality of magnetic conduction ring belts 230, the plurality of magnetic conduction ring belts 230 may be arranged at intervals, so as to form a plurality of magnetic conduction loops and make the magnetic field distribution more uniform.

[0049] The magnetic conduction ring belt 230 may be made of a material with low coercivity and high magnetic permeability, and the formed magnetic conduction path can be used to gather the magnetic field, reduce the release of the magnetic field to the outside, and reduce interference with other components outside the storage box 210 (for example, avoid magnetizing other components, etc.). The magnetic conduction ring belt 230 may be made of silicon steel sheet or similar materials. The size of the magnetic conduction ring belt 230 may be determined according to the test of the magnetic field distribution, and it is required to meet the conditions for gathering the magnetic field. In some embodiments, the width of the magnetic conduction ring belt 230 may account for one-half to one-tenth of the overall length of the storage box 210. For example, in an embodiment where the magnetic conduction ring belt 230 surrounds along the longitudinal direction of the storage box 210, the width of the magnetic conduction ring belt 230 in the front-back depth direction may be one-half to one-tenth of the length of the storage box 210 in the front-back depth direction; and for another example, in an embodiment where the magnetic conduction ring belt 230 surrounds along the longitudinal direction of the storage box 210, the width of the magnetic conduction ring belt 230 in the up-down height direction may be one-half to one-tenth of the length of the storage box 210 in the up-down height direction.

[0050]

[0050] In the embodiment where the magnetic conductive ring belt 230 surrounds along the longitudinal direction of the storage box 210, multiple magnetic conductive ring belts 230 can be arranged at intervals along the front-back depth direction of the storage box 210. If there is one magnetic conductive ring belt 230, it can be arranged in the middle area in the front-back depth direction of the storage box 210 and be opposite to the middle parts of the two magnetic members 220 in the front-back depth direction. The number and specific positions of the magnetic conductive ring belts 230 can be set according to the range and intensity of the magnetic field. For a storage box 210 with a relatively small storage space 212, one magnetic conductive ring belt 230 can be arranged in the middle; for a storage box 210 with a relatively large storage space 212, multiple magnetic conductive ring belts 230 can be arranged at intervals.

[0051]

[0051] Compared with arranging a shielding device around the outer periphery of the storage box 210 at the outer periphery of the magnetic field, the magnetic field fresh-keeping storage container 200 in this embodiment realizes a magnetic conduction path by using a relatively small magnetic conductive ring belt 230. It can reduce the use of magnetic conductive materials and save the cost of the magnetic field fresh-keeping storage container 200 while meeting the requirements of magnetic field intensity, and can also reduce the weight of the magnetic field fresh-keeping storage container 200 and the whole refrigerator 10.

[0052]

[0052] Multiple magnetic members 220 are respectively arranged between the storage box 210 and one or more magnetic conductive ring belts 230, and are used to form a magnetic field in the storage space 212 and form an annular magnetic conduction path outside the storage space 212 by using one or more magnetic conductive ring belts 230. The magnetic member 220 serves as a source for generating the magnetic field. The magnetic member 220 can be plate-shaped and is arranged relative to the box wall of the storage box 210. The magnetic conductive ring belt 230 is arranged around the outside of the magnetic member 220.

[0053]

[0053] In some embodiments, the magnetic conductive ring belt 230 can have a part that abuts against the magnetic member 220, so as to gather the magnetic field far from the storage space 212 and complete the closure of the magnetic field.

[0054]

[0054] The magnetic members 220 can be two, and are respectively arranged on a group of opposite side surfaces of the storage space 212, which is particularly suitable for a cuboid-shaped storage space 212. The opposite side surfaces where the two magnetic members 220 are located can be selected according to the shape of the storage box 210 itself and its position in the refrigerator 10. For example, they can be placed on the left and right sides, top and bottom sides, or front and back sides of the storage box 210. In the case where the magnetic conductive ring belt 230 surrounds along the upper, lower, left, and right sides of the storage box 210, the magnetic members 220 are respectively arranged on the top surface and the bottom surface of the storage box 210 or the magnetic members 220 are respectively arranged on the left lateral surface or the right lateral surface of the storage box 210.

[0055] The shape of each magnetic member 220 is generally consistent with the shape of the side where it is located, ensuring that the magnetic field can evenly cover the storage space 212. In some embodiments, the projection of the storage space 212 on the plane where the magnetic member 220 is located may be within the outer peripheral contour of the magnetic member 220. That is to say, the magnetic member 220 may be equal to or slightly larger than the corresponding side of the storage assembly 210. When the magnetic members 220 are provided on the top and bottom of the storage box 210, the top magnetic members 220 can respectively cover the top surface of the storage space 212; and the bottom magnetic members 220 can respectively cover the bottom surface of the storage space 212.

[0056] The magnetic member 220 can use a permanent magnetic component or an electromagnetic component. Figure 3 It is a schematic diagram of the magnetic member 220 in the magnetic field fresh-keeping storage container 200 according to an embodiment of the present invention. In this embodiment, the magnetic member 220 includes an electromagnetic ring 221. An electromagnetic coil is wound along the circumferential direction inside the electromagnetic ring 221. After the electromagnetic coil is energized, an electromagnetic field is formed in the storage space. The electromagnetic ring 221 can be formed into a flat ring shape, with both the top and bottom being planar, and the thickness being significantly smaller than the outer dimension. The ratio range of the width to the thickness of the electromagnetic ring 221 can be set to 1-10. The electromagnetic ring 221 with the above structure can be more conveniently matched with the storage box 210 and the magnetic conduction ring belt 230, occupying less space. The electromagnetic ring 221 has a corresponding waterproof structure, such as using impregnating varnish, plastic encapsulation, a sealing ring or a sealed housing to wrap and protect the internal electromagnetic coil, and the whole is constructed into a flat ring shape.

[0057] By controlling the electromagnetic coil, the electromagnetic field can be set as a static magnetic field with a constant magnetic field direction and / or magnetic field intensity, an alternating magnetic field with an alternating magnetic field direction and / or magnetic field intensity, or a pulsed magnetic field that is started at intervals as needed. The above magnetic field adjustment can be achieved by adjusting the current flowing through the electromagnetic coil. In some embodiments, the electromagnetic field can be adjusted according to the storage environment in the storage space 212 and the storage state of the stored items.

[0058] Figure 4Schematic diagram of the magnetic member 220 in the magnetic field preservation storage container 200 according to another embodiment of the present invention. The magnetic member 220 can simultaneously include a permanent magnetic component 222 and an electromagnetic component 221 (such as an electromagnetic ring). The permanent magnetic component 222 is used to provide a basic permanent magnetic field, and after the electromagnetic component 221 is electrified, an electromagnetic magnetic field that is superimposed on the permanent magnetic field can be formed. The intensity range of the magnetic field can be set to 1 Gs - 100 Gs. In the case of being applied to a freezing environment, the magnetic field intensity range can preferably be 5 - 60 GS, for example, about 20 Gs can be selected; in the case of being applied to a refrigerating environment, the magnetic field intensity range can be 20 - 160 GS, and preferably can be 40 - 80 Gs, for example, about 60 Gs. The permanent magnetic component 222 can be a permanent magnetic plate 222. That is, each magnetic member 220 includes an electromagnetic ring 221 and a permanent magnetic plate 222. An electromagnetic coil is wound along the circumferential direction inside the electromagnetic ring 221 and forms an electromagnetic field after being electrified. The permanent magnetic plate 222 is arranged at the central through hole of the electromagnetic ring 221 or is arranged against the electromagnetic ring 221 and is used to generate a permanent magnetic field that is consistent with the magnetic field direction of the electromagnetic field.

[0059] In addition to providing a permanent magnetic field, the permanent magnetic plate 222 can also make the electromagnetic field more uniform. The electromagnetic ring 221 and the permanent magnetic plate 222 are concentrically arranged. The size of the permanent magnetic plate 222 can be larger than the outer peripheral contour of the electromagnetic ring 221, so as to expand the coverage range of the electromagnetic field. The permanent magnetic field formed by the above-mentioned permanent magnetic plate 222 is a static magnetic field, which can make the storage space 212 always have a certain intensity of magnetic field.

[0060] The number of turns of the electromagnetic coil in the electromagnetic ring 221 can be set according to the required magnetic field intensity. The direction of the electromagnetic field formed by the electromagnetic ring 221 can be set to be consistent with the direction of the permanent magnetic field of the permanent magnetic plate 222. In this embodiment, the permanent magnetic plate 222 can also expand the range of the electromagnetic field and improve the uniformity of the magnetic field in the storage space.

[0061] By controlling the electromagnetic coil, the electromagnetic field can also be set as a static magnetic field with a constant magnetic field direction and / or magnetic field intensity, an alternating magnetic field with an alternating magnetic field direction and / or magnetic field intensity, or a pulsed magnetic field that starts at intervals as needed. The above-mentioned magnetic field adjustment can be achieved by adjusting the current leading to the electromagnetic coil. In some embodiments, the electromagnetic field can be adjusted according to the storage environment in the storage space and the storage state of the stored items. When the electromagnetic field is not activated, the permanent magnetic field of the permanent magnetic plate 222 is used to maintain the basic magnetic field intensity.

[0062] The direction of the electromagnetic field can be set to be consistent with the direction of the permanent magnetic field, so as to achieve the superposition of the magnetic fields and increase the magnetic field intensity. In Figure 2When the magnetic members 220 shown are disposed at the top and bottom of the storage space, the magnetic field direction within the storage space 212 can be from top to bottom or from bottom to top. Those skilled in the art can easily achieve a magnetic field in the opposite direction by changing the magnetic pole direction.

[0063] Figure 2 In the structure shown, the magnetic members 220 are disposed at the top and bottom of the storage box 210. Those skilled in the art can easily implement the structure in which the magnetic members 220 are disposed on the left and right sides in the horizontal direction of the storage box 210 according to the above description.

[0064] In addition, the magnetic members 220 and the magnetic conduction ring belts 230 can be disposed outside the cylinder body 211. Considering that the electromagnetic ring 221 generates heat during the process of generating a magnetic field when energized, the distance between the magnetic members 220 and the stored items within the storage space 212 can be set to not less than 1 mm. That is, the cylinder body 211 can also, to a certain extent, avoid the influence of the heat generated by the electromagnetic ring 221 on the stored items, and it is also convenient for dissipating heat from the electromagnetic ring 221.

[0065] Alternatively, the magnetic members 220 and the magnetic conduction ring belts 230 can also be disposed inside the cylinder body 211. For example, the magnetic conduction ring belt 230 can also be disposed inside the cylinder body 211, and the magnetic members 220 are disposed on the inner side.

[0066] Figure 5 It is a schematic diagram of a magnetic field preservation storage container 200 according to an embodiment of the present invention. Figure 6 is Figure 5 An exploded view of the components of the magnetic field preservation storage container 200 shown. The magnetic field preservation storage container 200 has two magnetic conduction ring belts 230 and two magnetic members 220. In order to show the cooperation relationship between the magnetic conduction ring belts 230 and the magnetic members 220, Figure 5 and Figure 6 the storage box 210 is omitted in [the figure], and only the cylinder body 211 for placing the storage box 210 is shown.

[0067] The two magnetic members 220 are respectively placed at the top and bottom of the magnetic field preservation storage container 200. Among them, the magnetic member 220 at the top covers the top surface of the storage space, and the magnetic member 220 at the bottom covers the bottom surface of the storage space. The magnetic field direction generated by them is from bottom to top or from top to bottom within the storage space. The specific magnetic field direction can be achieved by adjusting the magnetic pole direction.

[0068] Two magnetic conductive ring bands 230 are respectively wound around the upper, lower, left and right sides of the cylinder body 211. One of the magnetic conductive ring bands 230 is arranged in the front, and the other magnetic conductive ring band 230 is arranged in the back. The outer magnetic field near the front part of the storage box 210 is gathered by the front magnetic conductive ring band 230, so that the magnetic field at the front part of the storage box 210 is closed. The outer magnetic field near the rear part of the storage box 210 is gathered by the rear magnetic conductive ring band 230, so that the magnetic field at the rear part of the storage box 210 is closed. The two magnetic conductive ring bands 230 can disperse the magnetic field, making the magnetic field in the storage space more uniform and avoiding the magnetic field intensity in the central area being significantly higher than that in the surrounding area.

[0069] Figure 7 is a schematic diagram of a magnetic field fresh-keeping storage container according to another embodiment of the present invention; Figure 8 is Figure 7 is an exploded view of the components of the magnetic field fresh-keeping storage container shown. The magnetic field fresh-keeping storage container 200 has a magnetic conductive ring band 230 and two magnetic members 220. In order to show the cooperation relationship between the magnetic conductive ring band 230 and the magnetic member 220, Figure 7 and Figure 8 the storage box 210 is also omitted in

[0070] The two magnetic members 220 are respectively placed at the top and bottom of the magnetic field fresh-keeping storage container 200. The magnetic member 220 at the top covers the top surface of the storage space, and the magnetic member 220 at the bottom covers the bottom surface of the storage space. The magnetic field generated by them is from bottom to top or from top to bottom in the storage space. The specific magnetic field direction can be achieved by adjusting the direction of the magnetic poles.

[0071] The magnetic conductive ring band 230 is wound around the upper, lower, left and right sides of the cylinder body 211 and is located near the center of the storage box 210. The magnetic field extending to the outside of the storage space is gathered by the magnetic conductive ring band 230, reducing the magnetic field influence on other external components.

[0072] The number of the above-mentioned magnetic conductive ring bands 230 can be set according to the number of the magnetic conductive ring bands 230 and the specific position can be set according to the range and intensity of the magnetic field. For the storage box 210 and the cylinder body 211 with a smaller storage space 212, a magnetic conductive ring band 230 can be arranged in the middle; for the storage box 210 and the cylinder body 211 with a larger storage space 212, two or more magnetic conductive ring bands 230 can be arranged at intervals.

[0073] In addition, the magnetic members 220 shown in the above figures are respectively arranged at the top or bottom of the cylinder body 211. In some other alternative embodiments, the magnetic members 220 can also be respectively arranged on the left and right sides of the cylinder body 211. In some other alternative embodiments, for example, for a non-drawer type storage box, the magnetic conductive ring band 230 can also be wound around the front, rear, left and right directions of the storage box 210.

[0074] Figure 9 It is a block diagram of the control system of the refrigerator 10 with the magnetic field fresh-keeping storage container 200 according to an embodiment of the present invention. The refrigerator 10 of this embodiment can also combine magnetic field control and refrigeration control to ensure that food freezes in a magnetic field environment and achieve the effect of fresh-keeping freezing.

[0075] The refrigerator 10 can also be selectively provided with one or more of a storage temperature sensor 330, an opening / closing detector 340, and a refrigeration controller 310. The storage temperature sensor 330 is used to detect the storage temperature in the storage space, and the opening / closing detector 340 is used to detect the opening / closing state of the storage space.

[0076] After the opening / closing detector 340 detects that the storage space is opened, the storage temperature sensor 330 can be used to detect whether new ingredients are put in or whether the original ingredients need to be refrozen. During the refrigeration process, the magnetic member 220 and the refrigeration system 320 cooperate to achieve magnetic field-assisted freezing and improve the freezing and fresh-keeping effect of the ingredients.

[0077] The controller 310 is used to control the magnetic member 220 and the refrigeration system 320 to achieve corresponding refrigeration and magnetic field control. And various sensors (including the storage temperature sensor 330 and the opening / closing detector 340) provide detection means for the above control, so as to meet the control requirements of the control method.

[0078] The controller 310 can be configured to control the electromagnetic coil 221 in the magnetic member 220 to generate an electromagnetic field according to the temperature of the storage space and the operating state of the refrigerator 10, such as a static magnetic field with a constant magnetic field direction and / or magnetic field intensity, an alternating magnetic field with an alternating magnetic field direction and / or magnetic field intensity, and a pulsed magnetic field that starts at intervals. Considering that the magnetic field has a greater effect on the stored object at a specific storage stage, the controller 310 can start the electromagnetic field when a stronger magnetic field is needed; in the normal storage room, the static magnetic field is used to maintain the basic magnetic field intensity.

[0079] For example, when using the magnetic field to achieve auxiliary freezing storage, the controller 310 can be configured to start the electromagnetic field when a new stored object is placed in the storage space and the storage temperature is within the set temperature threshold range. The above temperature threshold range can be set according to the temperature during crystallization in the freezing process, so as to increase the magnetic field intensity during the crystallization process. In addition, during the normal storage process, the permanent magnetic field maintains a certain magnetic field intensity, and the electromagnetic field can be started periodically to perform enhanced magnetic field treatment on the stored object. The above control method can make the stored object freeze in a strong magnetic field environment, preferentially inhibit the growth of ice crystal nuclei, reduce the damage to cells, avoid juice loss, ensure a better taste of the ingredients, improve the quality of frozen storage, and meet the storage quality requirements of users for precious ingredients.

[0080] In the description of this embodiment, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0081] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying 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 of such features, that is, include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0082] Unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0083] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through other features therebetween. That is, in the description of this embodiment, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" or "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0084] Unless otherwise limited, all the terms (including technical terms and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0085] In the description of this embodiment, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0086] Up to this point, those skilled in the art should recognize that although numerous 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 content 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 determined to cover all such other variations or modifications.

Claims

1. A magnetic field fresh-keeping storage container, comprising: a storage box, which defines a storage space for placing stored items therein; one or more magnetic conductive ring bands, which are respectively sleeved on the outer periphery of the storage box; a plurality of magnetic members, which are respectively arranged between the storage box and the one or more magnetic conductive ring bands, and are used to form a magnetic field in the storage space, and use the one or more magnetic conductive ring bands to form an annular magnetic conduction path outside the storage space; wherein, the width of the magnetic conductive ring band is one-half to one-tenth of the length of the magnetic member in the front-back depth direction.

2. The magnetic field fresh-keeping storage container according to claim 1, wherein the storage space is generally rectangular parallelepiped-shaped, and there are two magnetic members, which are respectively arranged on a group of opposite side surfaces of the storage space.

3. The magnetic field fresh-keeping storage container according to claim 2, wherein the two magnetic members are respectively arranged on the top surface and the bottom surface of the storage space; or the two magnetic members are respectively arranged on the side surfaces on the transverse two sides of the storage space, and the shape of each magnetic member is generally consistent with the shape of the side surface where it is located.

4. The magnetic field fresh-keeping storage container according to claim 3, wherein there are a plurality of magnetic conductive ring bands, and they are arranged at intervals along the front-back depth direction of the storage box.

5. The magnetic field fresh-keeping storage container according to claim 3, wherein there is one magnetic conductive ring band, and it is arranged in the middle area in the front-back depth direction of the storage box and is opposite to the middle in the front-back depth direction of the two magnetic members.

6. The magnetic field fresh-keeping storage container according to claim 2, wherein the projection of the storage space on the plane where the magnetic member is located is within the outer contour range of the magnetic member.

7. The magnetic field fresh-keeping storage container according to claim 2, wherein each magnetic member includes an electromagnetic ring, and an electromagnetic coil is wound along the circumferential direction inside the electromagnetic ring. After the electromagnetic coil is energized, an electromagnetic field is formed in the storage space, or each magnetic member includes an electromagnetic ring and a permanent magnet plate. An electromagnetic coil is wound along the circumferential direction inside the electromagnetic ring and forms an electromagnetic field after being energized. The permanent magnet plate is arranged at the central through hole of the electromagnetic ring or is attached to the electromagnetic ring and is used to generate a permanent magnetic field consistent with the magnetic field direction of the electromagnetic field.

8. The magnetic field fresh-keeping storage container according to claim 1, further comprising: a cylinder body, which has a forward opening; the storage box is a drawer and is slidably arranged inside the cylinder body.

9. A refrigerator, comprising: a box body, which defines a storage compartment therein; the magnetic field fresh-keeping storage container according to any one of claims 1 to 8, which is arranged inside the storage compartment.

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