Magnetic field freshness-preserving storage container and refrigerator

Abstract

In order to meet the increasing use requirements of users for smart refrigerators, the requirements of users for the quality of smart home and smart life are further satisfied.SOLUTION: The magnetic field freshness preservation storage container includes a storage assembly defining a storage chamber for placing an object to be stored therein, and a plurality of magnetic field assemblies respectively disposed on an outer periphery of the storage assembly, wherein each magnetic field assembly includes one magnetic member disposed outside the storage assembly for forming a magnetic field in the storage chamber, and an annular magnetic conductive member including a uniform magnetic plate correspondingly disposed on the magnetic member and a connecting strip connected to the uniform magnetic plate and disposed around a periphery of the storage assembly, wherein the uniform magnetic plate and the connecting strip form an annular magnetic conductive path outside the storage chamber. The magnetic members of adjacent field assemblies are disposed on opposite sides of the storage assembly. The annular magnetic conductive passage can reduce the amount of magnetic material used, and avoid the cost and weight increase caused by too many or too large magnetic members.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to refrigeration and freezing equipment, and more particularly to magnetic freshness-preserving storage containers and refrigerators. [Background technology]

[0002] Consumers are also paying more attention to the freshness preservation effect of refrigerators, and there are problems with meat, fish, and shrimp, as they lose their juices during storage, leading to a deterioration in flavor and darkening. In particular, some high-quality foods lose their quality significantly after a certain period of storage.

[0003] In order to improve storage quality, many improvement methods have emerged in the prior art, but the freshness preservation effect is not ideal, the implementation costs are high, and it is difficult to apply them to household refrigerators. In the above improvement methods, theoretical studies have found that magnetic fields have a significant effect on the formation of ice crystals during the freezing process. In the field of refrigerators, the introduction of magnetic fields into freshness preservation has also been actively studied. However, when practically applied to refrigerators, when magnetic fields are used to assist freshness preservation, a large amount of magnetic material is required to provide a sufficient magnetic field strength for freshness preservation, which still results in high implementation costs and a significant increase in product weight. Summary of the Invention

[0004] SUMMARY OF THE INVENTION One object of the present invention is to provide a magnetic freshness storage container and refrigerator that can effectively improve storage quality and reduce component costs.

[0005] Another object of the present invention is to facilitate the application of magnetic freshness storage containers to refrigerators.

[0006] In particular, the present invention provides a magnetic freshness storage container, comprising: a storage assembly defining a storage chamber therein for placing an item to be stored; one or more magnetic field assemblies, each disposed around the periphery of the storage assembly; Each magnetic field assembly is one or more magnetic members disposed outside the storage assembly and used to create a magnetic field in the storage chamber; and an annular magnetic conductive member including a uniform magnetic plate arranged corresponding to the magnetic member and a connecting band connected to the uniform magnetic plate and arranged around the outer periphery of the storage assembly, the uniform magnetic plate and the connecting band forming an annular magnetic conductive passage outside the storage chamber.

[0007] Alternatively, the magnetic member may include an electromagnetic annular ring, an electromagnetic coil wound around the inside of the electromagnetic annular ring in a circumferential direction, and an electromagnetic field is formed in the storage chamber when the electromagnetic coil is energized; The uniform magnetic plate is disposed in the central through-hole of the electromagnetic annular ring, and the shape of the uniform magnetic plate is adapted to the shape of the central through-hole, or the uniform magnetic plate is disposed so as to abut against the electromagnetic annular ring.

[0008] Optionally, each magnetic field assembly includes two magnetic members, each of which is disposed on a pair of opposite sides of the storage assembly, and a uniform magnetic plate of annular magnetic conductive member is disposed at the corresponding position of each of the two magnetic members.

[0009] Optionally, the connecting strip comprises two segments, each segment of the connecting strip extending from an edge of the uniform magnetic plate on one side along the outer wall of the storage assembly to an edge of the uniform magnetic plate on the other side.

[0010] Optionally, there is one magnetic field assembly, and the shapes of the two magnetic members of the magnetic field assembly are the same as the side shapes of the storage assemblies on which they are respectively arranged.

[0011] Optionally, the storage assembly is flat and the two magnetic members of the magnetic field assembly are located at the top and bottom of the storage assembly, respectively.

[0012] Optionally, the magnetic field assemblies are multiple and spaced apart along the depth or height of the storage assembly.

[0013] Optionally, each magnetic field assembly includes one magnetic member, and the magnetic members of adjacent magnetic field assemblies are located on opposite sides of the storage assembly.

[0014] Optionally, the storage assembly comprises: a cylindrical body having a front opening; A drawer is disposed within the cylindrical body so as to be retractable, and has a storage chamber formed therein.

[0015] According to another aspect of the present invention, there is provided a refrigerator comprising: a storage body having a storage room defined therein; and any one of the above magnetic freshness-keeping storage containers disposed within the storage chamber.

[0016] The magnetic freshness-preserving storage container of the present invention includes one or more magnetic field assemblies arranged around the outer periphery of the storage assembly and used to generate a magnetic field within the storage chamber. The magnetic field contributes to improving storage quality, shortening freezing time, reducing juice and nutrient loss in food, reducing microbial and bacterial counts, and extending the freshness-preserving period. Each magnetic field assembly includes one or more magnetic members and an annular magnetic conductive member connecting the magnetic members to form an annular magnetic conductive passage outside the storage chamber. While increasing the magnetic field strength and making the magnetic field in the storage chamber more uniform, the annular magnetic conductive passage reduces the amount of magnetic material used and avoids the increased cost and weight caused by excessively large or excessively large magnetic members.

[0017] Furthermore, in the magnetic freshness-preserving storage container of the present invention, the magnetic member is an electromagnetic ring, which generates a magnetic field after being energized. Correspondingly, the uniform magnetic plate has a structure that matches the electromagnetic ring, and can be disposed in the central through-hole of the electromagnetic ring or disposed so as to abut against the electromagnetic ring, which on the one hand homogenizes the magnetic field of the electromagnetic coil and on the other hand also serves as part of the magnetic conductive passage, thereby increasing the magnetic flux density in the storage chamber and improving the magnetic field utilization efficiency.

[0018] Furthermore, in the magnetic freshness-preserving storage container of the present invention, the structure of the magnetic field assembly can be optimized to make the structure of the magnetic freshness-preserving storage container more compact, particularly suitable for structures such as storage boxes and storage drawers, and magnetic freshness preservation can be achieved in relatively flat storage compartments. The magnetic field assembly has a variety of selectable structures, and by selecting one according to the structural characteristics of the storage assembly, versatility and adjustment flexibility can be improved.

[0019] Furthermore, in the refrigerator of the present invention, by being equipped with the above-mentioned magnetic freshness-preserving storage container, food is stored in a magnetic field environment, the growth of ice crystals is suppressed, the growth rate of ice crystals is higher than the migration rate of water molecules, and the ice crystals generated are small, which reduces damage to cells, avoids loss of juice, ensures a better texture of food, improves frozen storage quality, and meets user demands for the storage quality of valuable food ingredients.

[0020] Furthermore, in the refrigerator of the present invention, the magnetic field improves storage quality, providing a new freshness-preserving function for smart refrigerators, meeting the increasing user needs for smart refrigerators, and further satisfying users' demands for the quality of smart homes and smart lives.

[0021] These and other objects, advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description of specific embodiments of the present invention, taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0022] Some specific embodiments of the present invention will now be described in detail, by way of example and not limitation, with reference to the accompanying drawings, in which like reference numerals indicate the same or similar parts or portions, and in which those skilled in the art should understand that the accompanying drawings are not necessarily drawn to scale.

[0023] [Figure 1] 1 is a schematic perspective view of a refrigerator equipped with a magnetic freshness-preserving storage container according to one embodiment of the present invention; [Figure 2] 1 is a schematic diagram of a magnetic freshness storage container according to one embodiment of the present invention. [Figure 3] FIG. 3 is an exploded view of the magnetic freshness-preserving storage container shown in FIG. 2. [Figure 4] 3 is a schematic diagram of the magnetic field assembly and its magnetic field direction in the magnetic freshness storage container shown in FIG. 2. [Figure 5] 1 is a schematic diagram of a magnetic freshness storage container according to another embodiment of the present invention. [Figure 6] 6 is a schematic diagram of the arrangement of electromagnetic annular rings in the magnetic freshness storage container shown in FIG. 5. [Figure 7] 10 is a schematic diagram of a magnetic freshness storage container according to yet another embodiment of the present invention. [Figure 8] 8 is a schematic diagram showing the arrangement of magnetic members in the magnetic freshness-preserving storage container shown in FIG. 7. FIG. [Figure 9] FIG. 1 is a block diagram of a control system for a refrigerator equipped with a magnetic freshness-preserving storage container according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] 1 is a schematic perspective view of a refrigerator 10 with a magnetic freshness-preserving storage container 200 according to one embodiment of the present invention. The refrigerator 10 of this embodiment generally comprises a cabinet 120, a door body 110, and a refrigeration system (not shown). The cabinet 120 is provided with at least one (usually multiple) storage compartments that are open to the front, such as a refrigerated storage compartment, a freezer storage compartment, a temperature-variable storage compartment, etc. The specific number and functions of the storage compartments may be set according to specific needs.

[0025] The refrigerator 10 of this embodiment may be an air-cooled refrigerator, and includes a ventilation system in the cabinet 120, where cool air that has been heat-exchanged in a heat exchanger (evaporator) using a fan is sent from the ventilation port to the storage compartment and returned to the ventilation duct from the return air port to achieve freezing. The cabinet 120, door body 110, and refrigeration system of such a refrigerator are all well known and can be easily realized by those skilled in the art. Therefore, in order to avoid obscuring or blurring the key points of the present invention, detailed descriptions of the cabinet 120, door body 110, and refrigeration system themselves will be omitted below.

[0026] A magnetic freshness-keeping container 200 may be installed inside one or more storage compartments of the refrigerator 10. When placed in the freezer compartment, the magnetic freshness-keeping container 200 freezes and keeps frozen food fresh, inhibiting ice crystal growth so that the ice crystal growth rate is faster than the water molecule migration rate, resulting in smaller ice crystals, reducing damage to cells, preventing juice loss, accelerating the freezing process, and shortening the freezing time. When placed in the refrigerator compartment, the magnetic freshness-keeping container 200 slows down the oxidation-reduction reaction rate of food, reducing nutrient and moisture loss, preventing food discoloration, and inhibiting bacterial growth, thereby extending the food's freshness retention period.

[0027] The number of magnetic freshness-preserving storage containers 200 and the compartments in which they are located can be determined according to the needs of the user. For example, one or more magnetic freshness-preserving storage containers 200 may be provided in the refrigerator 10. The magnetic freshness-preserving storage containers 200 may be provided in the refrigerated storage compartment, the freezer storage compartment, or the temperature-variable storage compartment, and the magnetic field may assist in freshness preservation in the above storage compartments, or may be provided as separate compartments of the refrigerator 10.

[0028] Figure 2 is a schematic diagram of a magnetic freshness storage container 200 according to one embodiment of the present invention. Figure 3 is an exploded view of the magnetic freshness storage container 200 shown in Figure 2. Figure 4 is a schematic diagram of the magnetic field assembly 201 and its magnetic field direction in the magnetic freshness storage container 200 shown in Figure 2.

[0029] The magnetic freshness-preserving storage container 200 generally includes a storage assembly 210 and one or more magnetic field assemblies 201. A storage compartment for placing stored items is defined within the storage assembly 210. The storage assembly may be box-shaped. In some embodiments, the storage assembly has a generally flat rectangular shape (i.e., the height is significantly smaller than the depth and the left and right). The storage assembly 210 may have a drawer structure. That is, the storage assembly may include a cylinder and a drawer. The cylinder has a front opening. The drawer is retractably disposed within the cylinder. After the drawer is pulled out, the storage compartment is exposed, allowing access to the stored items. When the drawer is pushed into the cylinder, an independent, sealed space is formed. Because refrigerator drawer structures are well known to those skilled in the art, a detailed description thereof will be omitted here.

[0030] Each magnetic field assembly 201 includes one or more magnetic members 220 and an annular magnetic conductive member 230. The magnetic members 220 are disposed outside the storage assembly and generate a magnetic field in the storage compartment. The magnetic members may be permanent magnetic components or electromagnetic components. In some alternative embodiments, the magnetic members 220 may simultaneously include permanent magnetic components and electromagnetic components, where the permanent magnetic components provide a basic permanent magnetic field and the electromagnetic components are energized to generate an electromagnetic field superimposed on the permanent magnetic field. The magnetic field strength may range from 1 Gs to 100 Gs. When applied to a freezer environment, the magnetic field strength range is preferably 5 to 60 Gs, e.g., about 20 Gs. When applied to a refrigerated environment, the magnetic field strength range is 20 to 160 Gs, preferably 40 to 80 Gs, e.g., about 60 Gs.

[0031] The annular magnetic conductive member 230 includes a uniform magnetic plate 231 disposed corresponding to the magnetic member 220 and a connecting strip 232 connected to the uniform magnetic plate 231 and disposed around the outer periphery of the storage assembly 210, with the uniform magnetic plate 231 and connecting strip 232 forming an annular magnetic conductive path outside the storage chamber. The annular magnetic conductive member 230 is made of a material with low coercivity and high magnetic permeability, and the formed magnetic conductive path concentrates the magnetic field, improving the magnetic field uniformity within the storage chamber while reducing magnetic field emission to the outside and reducing interference with other components outside the storage assembly 210 (e.g., avoiding magnetization of other components, etc.). The annular magnetic conductive member 230 is made of a silicon steel plate or a similar material.

[0032] The annular magnetic conductive member 230 may be integrally molded, i.e., the uniform magnetic plate 231 and the connecting band 232 may be integrally molded. In other embodiments, the uniform magnetic plate 231 and the connecting band 232 may be spliced ​​together to form the annular magnetic conductive member 230.

[0033] The uniform magnetic plate 231 is disposed corresponding to the magnetic member 220 and is used to more uniformly radiate the magnetic field generated by the magnetic member 220 into the storage chamber.

[0034] The magnetic member 220 includes an electromagnetic annular ring 221 having an electromagnetic coil wound annularly along the circumferential direction inside thereof, and which generates an electromagnetic field in the storage chamber when the electromagnetic coil is energized.

[0035] The electromagnetic annular ring 221 may be formed by a wound electromagnetic coil. Its shape may be circular, elliptical, or rectangular. The electromagnetic annular ring is flat, with its top and bottom all being flat, and its thickness being significantly smaller than its outer periphery. The width-to-thickness ratio of the electromagnetic annular ring 221 may be in the range of 1-10.

[0036] In some embodiments, the uniform magnetic plate 231 is disposed in the central through-hole of the electromagnetic annular ring 221, and the shape of the uniform magnetic plate 231 is adapted to the shape of the central through-hole, so that the space occupied by the magnetic field assembly 201 is smaller and the structure of the magnetic freshness-preserving storage container 200 can be made more compact.

[0037] In some other embodiments, the uniform magnetic plate 231 is positioned to abut against the electromagnetic annular ring 221. The dimensions of the uniform magnetic plate 231 may be larger than the outer periphery of the electromagnetic annular ring 221, and the electromagnetic annular ring 221 is positioned to be centered with the uniform magnetic plate 231. The uniform magnetic plate 231 increases the range of the magnetic field.

[0038] Each magnetic field assembly 201 includes two magnetic members 220. The two magnetic members 220 are respectively disposed on a pair of opposing side surfaces of the storage assembly 210, and uniform magnetic plates 231 of annular magnetic conductive members 230 are disposed at corresponding positions of the two magnetic members 220. The positions of the magnetic members 220 are determined according to the structure of the side surface on which they are located. Generally, the magnetic members 220 face the center of the side surface on which they are located. For example, the magnetic members 220 may be selected to be disposed on both lateral sides, both top and bottom sides, or both front and rear sides of the storage assembly 210. The magnetic pole directions of the magnetic members 220 all face the storage chamber so that the magnetic field penetrates the storage chamber.

[0039] When the storage assembly 210 has an overall flat rectangular shape (i.e., the height distance is significantly smaller than the depth distance and the left and right lateral distances), the magnetic members 220 are preferentially disposed on both the top and bottom of the storage assembly 210. That is, the storage assembly 210 is flat, and the two magnetic members 220 of the magnetic field assembly 201 are disposed at the top and bottom of the storage assembly 210, respectively. The magnetic field penetrates the storage chamber from top to bottom or bottom to top. This arrangement reduces the distance between the two magnetic members 220, improving the strength and uniformity of the magnetic field.

[0040] The magnetic members 220 on both sides have substantially the same structure and dimensions to ensure the uniformity of the magnetic field. The magnetic field of the magnetic members 220 ensures that a uniform magnetic field is formed at all positions in the storage chamber, i.e., the storage chamber is within the magnetic field range without any blind spots.

[0041] The projection of the storage chamber onto a plane on which the uniform magnetic plate 231 is located is within the range of the uniform magnetic plate 231, and the dimensions of the magnetic member 220 are equal to or smaller than the dimensions of the opposing uniform magnetic plate 231. That is, the uniform magnetic plate 231 is equal to or slightly larger than the corresponding side of the storage assembly 210. When the magnetic members 220 are arranged on the top and bottom of the storage assembly, the uniform magnetic plates 231 arranged corresponding to the top magnetic member 220 can cover the top surface of the storage chamber, and the uniform magnetic plates 231 arranged corresponding to the bottom magnetic member 220 can cover the bottom surface of the storage chamber.

[0042] The uniform magnetic plate 231 increases the coverage area of ​​the magnetic field, making the magnetic field more uniform. The connecting strip 232 consists of two segments, and each segment of the connecting strip 232 extends from the edge of the uniform magnetic plate 231 on one side along the outer wall of the storage assembly 210 to the edge of the uniform magnetic plate 231 on the other side. In a cross-sectional view, the uniform magnetic plate 231 and the connecting strip 232 form an annular ring on the outer periphery of the storage assembly 210.

[0043] In an embodiment in which the magnetic members 220 are disposed on the top and bottom walls of the storage assembly 210, one segment of the connecting strip 232 extends from the center of one lateral side (e.g., the right side) of the top uniform magnetic plate 231 along one side wall of the storage chamber to the center of the corresponding lateral side (e.g., the right side) of the bottom uniform magnetic plate 231. The other segment of the connecting strip 232 extends from the center of the other lateral side (e.g., the left side) of the top uniform magnetic plate 231 along the other side wall of the storage chamber to the center of the other lateral side (e.g., the left side) of the bottom uniform magnetic plate 231.

[0044] Connecting belt 232 is strip-shaped, and its width along the front-to-back depth direction may be one-half to one-tenth of the length along the front-to-back depth direction of uniform magnetic plate 231. That is, connecting belt 232 is located at the center position of uniform magnetic plate 231 in the front-to-back direction, and is significantly narrower than uniform magnetic plate 231. The structure of annular magnetic conductive member 230 described above satisfies the magnetic field strength requirements, while reducing the use of magnetic conductive materials and magnetic parts, thereby reducing the cost of magnetic freshness-keeping container 200, and reducing the overall weight of magnetic freshness-keeping container 200 and refrigerator 10.

[0045] In the embodiment shown in FIGS. 2 to 4, there is only one magnetic field assembly 201, and the two magnetic members 220 of the magnetic field assembly 201 each have the same shape as the side surface of the storage assembly 210 on which it is located. For example, the top magnetic member 220 has the same shape as the top surface of the storage assembly 210, and the bottom magnetic member 220 has the same shape as the bottom surface of the storage assembly 210. A top uniform magnetic plate 231 is disposed above the top magnetic member 220, and a bottom uniform magnetic plate 231 is disposed below the bottom magnetic member 220. The top uniform magnetic plate 231 covers the top surface of the storage chamber, and the bottom uniform magnetic plate 231 covers the bottom surface of the storage chamber. A vertical magnetic field is formed in the storage chamber without any blind spots. The connecting strip 232 is located at the center of the front, back, and depth directions of the magnetic field assembly 201, forming a magnetically conductive path outside the storage chamber and preventing magnetic field leakage to the outside.

[0046] The magnetic field directions of the two magnetic members 220 are the same to form a uniform magnetic field within the storage chamber. That is, the north poles of the two magnetic members 220 face in the same direction, and the south poles face in opposite directions. The magnetic field direction within the storage chamber may be from top to bottom or from bottom to top. The magnetic field direction shown in FIG. 4 is from bottom to top, and based on the same technical concept, a magnetic field with an opposite direction can be realized by adjusting the magnetic pole direction. That is, it is easy for those skilled in the art to realize a magnetic field from top to bottom.

[0047] Based on the description of the embodiment in which the magnetic member 220 and the uniform magnetic plate 231 are respectively arranged on the top and bottom, it is easy for those skilled in the art to derive a solution in which the magnetic member 220 and the uniform magnetic plate 231 are respectively arranged on the left and right side walls and the front and rear side walls. Considering that heat is generated in the process of generating a magnetic field when the electromagnetic annular ring 221 is energized, the distance between the magnetic member and the stored items in the storage chamber is 1 mm or more.

[0048] Figure 5 is a schematic diagram of a magnetic freshness-preserving storage container 200 according to another embodiment of the present invention. Figure 6 is a schematic diagram of the arrangement of electromagnetic annular rings 221 in the magnetic freshness-preserving storage container 200 shown in Figure 5. In this embodiment, there are multiple magnetic field assemblies 201, each spaced apart along the depth or height of the storage assembly 210. Each magnetic field assembly 201 still includes two magnetic members 220. The two magnetic members 220 are respectively disposed on a pair of opposing side surfaces of the storage assembly 210, and uniform magnetic plates 231 of annular magnetic conductive members 230 are disposed at corresponding positions of the two magnetic members 220.

[0049] In the case of a structure in which the magnetic field assemblies 201 are spaced apart along the depth direction of the storage assembly 210, the magnetic members 220 may be selected to be disposed on both lateral sides or both top and bottom sides of the storage assembly 210. Each of the multiple magnetic field assemblies 201 forms a set of magnetic fields, and the magnetic fields of the multiple magnetic field assemblies 201 overlap each other, making the magnetic field in the storage chamber more uniform.

[0050] In the case of a structure in which the magnetic field assemblies 201 are spaced apart along the height of the storage assembly 210, the magnetic members 220 may be selected to be located on both lateral sides or on both front and rear sides of the storage assembly 210.

[0051] The magnetic member 220 may be an electromagnetic annular ring 221. An electromagnetic coil is wound around the inside of the electromagnetic annular ring 221 in a circular shape along the circumferential direction, and when the electromagnetic coil is energized, an electromagnetic field is generated in the storage chamber. The uniform magnetic plate of the annular magnetic conductive member 230 is arranged to abut against the electromagnetic annular ring 221. The dimensions of the uniform magnetic plate of the annular magnetic conductive member 230 are larger than the outer periphery of the electromagnetic annular ring 221, and the electromagnetic annular ring 221 is arranged so that its center coincides with the uniform magnetic plate of the annular magnetic conductive member 230. The uniform magnetic plate of the annular magnetic conductive member 230 expands the range of the magnetic field.

[0052] Multiple uniform magnetic plates on the same side of the storage assembly 210 can cover that side area of ​​the storage chamber. Multiple uniform magnetic plates on the top surface of the storage chamber can cover the top area of ​​the storage chamber, and multiple uniform magnetic plates on the bottom surface of the storage chamber can cover the bottom area of ​​the storage chamber. Because the size of each electromagnetic annular ring 221 is smaller, the magnetic field generated by the electromagnetic annular ring 221 is more uniform, ensuring uniform magnetic field treatment for the items stored in the storage chamber.

[0053] The number of magnetic field assemblies 201 is set according to the dimensions of the storage assembly 210, and although the figure shows a structure of the magnetic freshness-preserving storage container 200 including two magnetic field assemblies 201, one skilled in the art may include three or more magnetic field assemblies 201 as needed.

[0054] The magnetic field assemblies 201 may have the same structure. For example, a magnetic freshness-preserving storage container 200 including two magnetic field assemblies 201 may be arranged symmetrically front to back.

[0055] FIG. 7 is a schematic diagram of a magnetic freshness-preserving storage container 200 according to yet another embodiment of the present invention. FIG. 8 is a schematic diagram of the arrangement of magnetic members 220 in the magnetic freshness-preserving storage container 200 shown in FIG. 7. In this embodiment, there are multiple magnetic field assemblies 201, each spaced apart along the depth or height of the storage assembly 210. Each magnetic field assembly 201 may include one magnetic member 220. The magnetic members 220 are disposed on one side of the storage assembly 210, and the uniform magnetic plates of the annular magnetic conductive member 230 are disposed corresponding to the magnetic members 220. The connecting strip of the annular magnetic conductive member 230 extends from one side of the uniform magnetic plate of the annular magnetic conductive member 230 to surround the storage assembly 210 and connects to the other side of the uniform magnetic plate of the annular magnetic conductive member 230.

[0056] The magnetic field assemblies 201 may also maintain some magnetic field uniformity by arranging the magnetic members 220 at different locations. For example, the magnetic members 220 of adjacent magnetic field assemblies 201 may be arranged on opposite sides of the storage assembly 210.

[0057] In an embodiment including two magnetic field assemblies 201, the magnetic member 220 of the front magnetic field assembly 201 is disposed on top of the storage assembly 210, and the magnetic member 220 of the rear magnetic field assembly 201 is disposed on the bottom of the storage assembly 210. The front magnetic field assembly 201 and the rear magnetic field assembly 201 are disposed symmetrically and may have similar structures and dimensions.

[0058] The magnetic members 220 of adjacent magnetic field assemblies 201 are arranged on opposite sides of the storage assembly 210, and in a specific structure including four magnetic field assemblies 201, the magnetic member 220 of the front magnetic field assembly 201 is arranged on the top of the storage assembly 210, the magnetic member 220 of the central magnetic field assembly 201 near the front is arranged on the bottom of the storage assembly 210, the magnetic member 220 of the central magnetic field assembly 201 near the rear is arranged on the top of the storage assembly 210, and the magnetic member 220 of the rear magnetic field assembly 201 is arranged on the bottom of the storage assembly 210.

[0059] In an embodiment in which each magnetic field assembly 201 includes one magnetic member 220, the amount of magnetic member 220 used is significantly reduced, which is particularly suitable for storage assemblies 210 with small storage chambers, and good magnetic field uniformity is maintained by the annular magnetic conductive member 230.

[0060] FIG. 9 is a block diagram of a control system for a refrigerator equipped with a magnetic freshness-preserving container according to one embodiment of the present invention.

[0061] In the refrigerator 10 of this embodiment, magnetic field control and freezing control are combined to freeze food in a magnetic field environment, thereby achieving the effect of freshness preservation freezing.

[0062] The refrigerator 10 may further include one or more of a storage temperature sensor 330, an open / close detector 340, and a refrigeration controller 310. The storage temperature sensor 330 detects the storage temperature in the storage compartment, and the open / close detector 340 is used to detect the open / close state of the storage compartment.

[0063] After the open / close detector 340 detects that the storage compartment has been opened, the storage temperature sensor 330 detects whether new ingredients have been added or whether the original ingredients need to be re-frozen. During the freezing process, the magnetic field assembly 201 and the freezing system 320 work together to provide magnetic field assistance for freezing, thereby improving the effect of preserving the frozen freshness of the ingredients.

[0064] The controller 310 is used to control the magnetic field assembly 201 and the refrigeration system 320, and realize the corresponding refrigeration and magnetic field control. Various sensors (including a storage temperature sensor 330 and an open / close detector 340) provide detection means for the above control, and can meet the control needs of the control method.

[0065] The controller 310 controls the magnetic field assembly 201 to generate an electromagnetic field, such as a static magnetic field with a constant magnetic field direction and / or magnetic field strength, an alternating magnetic field with an alternating magnetic field direction and / or magnetic field strength, or a pulsed magnetic field that is activated at intervals, depending on the temperature of the storage compartment and the operating state of the refrigerator 10.

[0066] For example, when a magnetic field is used to assist frozen storage, the controller 310 may be configured to activate the electromagnetic field when new storage items are placed in the storage compartment and the storage temperature is within a set temperature threshold range. The temperature threshold range may be set according to the temperature at which crystallization occurs during the freezing process, and the magnetic field strength may be increased during the crystallization process. Alternatively, the electromagnetic field may be periodically activated during the normal storage process to subject the storage items to an enhanced magnetic field treatment. This control method allows the storage items to be frozen in a strong magnetic field environment, inhibiting ice crystal growth, avoiding cell damage and juice loss, and ensuring a better texture for the food items. This improves the quality of frozen storage and meets user demands for the quality of storage of valuable food items.

[0067] In the refrigerator 10 and its magnetic freshness-preserving storage container 200 according to the above embodiment, the structure of the magnetic field assembly 201 is optimized to make the structure of the magnetic freshness-preserving storage container 200 more compact, which is particularly suitable for structures such as storage boxes and storage drawers, and can achieve magnetic freshness preservation in relatively flat storage compartments. The magnetic field assembly 201 has various selectable structures that can be selected according to the structural characteristics of the storage assembly 210, thereby improving versatility and adjustment flexibility.

[0068] In the refrigerator 10 and its magnetic freshness storage container 200 of the above embodiment, when the magnetic field strength is increased to make the magnetic field in the storage compartment more uniform, the annular magnetic conductive passage reduces the amount of magnetic material used, avoiding the increased cost and weight caused by excessive or large magnetic components. Testing of the prototype showed that the magnetic freshness storage container 200 stores food in a magnetic environment, inhibits ice crystal growth, the ice crystal growth rate is higher than the water molecule migration rate, the generated ice crystals are small, reducing damage to cells, preventing juice loss, ensuring a better texture for food, improving frozen storage quality, and meeting user requirements for the storage quality of valuable food.

[0069] Although several exemplary embodiments of the present invention have been described in detail and comprehensively herein, it will be apparent to those skilled in the art that many other variations or modifications in accordance with the principles of the present invention can be directly determined or inferred based on the disclosure of the present invention without departing from the spirit and scope of the present invention. It should therefore be understood that the scope of the present invention is intended to cover all such variations or modifications.

Claims

1. A magnetic freshness-keeping storage container, a storage assembly defining a storage chamber therein for placing an item to be stored; a plurality of magnetic field assemblies each disposed around the periphery of the storage assembly; Each magnetic field assembly is a magnetic member disposed outside the storage assembly and used to create a magnetic field in the storage chamber; an annular magnetic conductive member including a uniform magnetic plate disposed corresponding to the magnetic member and a connecting band connected to the uniform magnetic plate and disposed around the outer periphery of the storage assembly, the uniform magnetic plate and the connecting band forming an annular magnetic conductive passage outside the storage chamber; The magnetic members of adjacent magnetic field assemblies are disposed on opposite sides of the storage assembly. , magnetic freshness-keeping storage container.

2. the magnetic member includes an electromagnetic annular ring; An electromagnetic coil is wound around the inside of the electromagnetic annular ring in a circumferential direction, and an electromagnetic field is formed in the storage chamber by energizing the electromagnetic coil; 2. The magnetic freshness-preserving storage container of claim 1, wherein each of the magnetic field assemblies includes two uniform magnetic plates arranged on opposite sides of the storage assembly, one of the uniform magnetic plates being arranged in a central through-hole of the electromagnetic annular ring, and the shape of the uniform magnetic plate being adapted to the shape of the central through-hole or the uniform magnetic plate being arranged to abut against the electromagnetic annular ring.

3. 3. The magnetic freshness-preserving storage container of claim 2, wherein the connecting band consists of two segments, each segment of the connecting band extending from an edge of the uniform magnetic plate on one side along the outer wall of the storage assembly to an edge of the uniform magnetic plate on the other side.

4. 4. The magnetic freshness-preserving storage container according to claim 3, wherein the width of each segment of the connection band along the front-to-back depth direction is 1 / 2 to 1 / 10 of the length of the uniform magnetic plate along the front-to-back depth direction.

5. 10. The magnetic freshness-preserving storage container of claim 1, wherein a plurality of said magnetic field assemblies are spaced apart along a depth or height of said storage assembly.

6. The storage assembly includes: a cylindrical body having a front opening; 2. The magnetic freshness-preserving storage container according to claim 1, further comprising: a drawer disposed within said cylindrical body so as to be retractable, said drawer having said storage chamber formed therein.

7. a storage body having a storage room defined therein; A refrigerator comprising: a magnetic freshness-preserving storage container according to any one of claims 1 to 6, disposed inside the storage compartment.

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