Magnetic field freshness-preserving storage container and refrigerator

Abstract

A magnetic freshness-preserving storage container and a refrigerator. The magnetic freshness-preserving storage container includes a storage assembly having a storage chamber defined therein for placing stored items, a magnet assembly including a first magnet part and a second magnet part disposed on a pair of opposing sides of the storage assembly, the first magnet part and the second magnet part forming a magnetic field in the storage chamber, and a magnetic conductive assembly including a first magnetic conductive part disposed corresponding to the first magnet part, a second magnetic conductive part disposed corresponding to the second magnet part, and a magnetic conductive connection member connected between the first magnetic conductive part and the second magnetic conductive part, the first magnetic conductive part, the second magnetic conductive part, and the magnetic conductive connection member forming a ring-shaped magnetic conductive passage outside the storage chamber. A uniform magnetic field is formed in the storage chamber, and the magnetic field has a strength that meets the requirements for improving storage quality, is compact in structure, and is easy to install, meeting the needs of using a smart refrigerator and meeting users' demands for the quality of smart homes and smart lives.

Description

Technical Field

[0001] The present invention relates to a refrigeration and freezing device, and particularly to a magnetic field freshness retention storage container and a refrigerator.

Background Art

[0002] Users' attention to the freshness retention effect of stored items in refrigerators is also increasing. In the case of meat, fish, and shrimp ingredients, there are problems such as the loss of juice and deterioration of taste, or darkening of color during the storage process. In particular, the quality of some high-grade ingredients drops significantly after a certain storage time.

[0003] In order to improve the storage quality, many improvement methods have emerged in the prior art. For example, the freezing speed of food is improved through rapid freezing, or the food is in an over-frozen state. Such methods require an increase in the refrigeration capacity of the refrigerator, leading to an increase in the energy consumption of the refrigerator. Therefore, more effectively improving the frozen storage quality has become an urgent technical issue for refrigerator developers.

[0004] According to theoretical research, it has been found that the magnetic field has a great influence on the formation of ice crystals during the freezing process. In the field of refrigerators, the introduction of the magnetic field into freshness retention storage has been actively studied. However, when it is practically applied to refrigerators, the effect of magnetic field-assisted freshness retention is not satisfactory.

Summary of the Invention

[0005] One object of the present invention is to provide a magnetic field freshness retention storage container and a refrigerator that can effectively improve the storage quality.

[0006] Another object of the present invention is to reduce the component cost and facilitate the installation and application of the magnetic field freshness retention storage container in the refrigerator.

[0007] In particular, the present invention provides a magnetic field freshness retention storage container, which includes a storage assembly having a storage chamber defined therein for placing an object to be stored, and It consists of a first magnet component and a second magnet component disposed on a pair of opposite sides of each storage assembly, and a magnet assembly that forms a magnetic field in the storage chamber by the first magnet component and the second magnet component. It consists of a first magnetic conductive component disposed corresponding to the first magnet component, a second magnetic conductive component disposed corresponding to the second magnet component, and a magnetic conductive connection member connected between the first magnetic conductive component and the second magnetic conductive component. The first magnetic conductive component, the second magnetic conductive component, and the magnetic conductive connection member form an annular magnetic conductive path outside the storage chamber, and includes a magnetic conductive assembly.

[0008] Optionally, each of the first magnet component and the second magnet component includes a permanent magnet plate disposed outside the side surface corresponding to the storage assembly. The shape of the permanent magnet plate is the same as the shape of the corresponding side surface. Each of the first magnetic conductive component and the second magnetic conductive component includes a magnetic conductive plate. The magnetic conductive plates are respectively disposed opposite to the permanent magnet plates. The magnetic conductive connection member extends from the edge of the magnetic conductive plate along the outside of the storage assembly and is connected to the magnetic conductive plate on the other side.

[0009] Optionally, the projection onto the plane where the magnetic conductive plate of the storage chamber is located is within the range of the magnetic conductive plate, and the dimensions of the permanent magnet plate are less than or equal to the dimensions of the corresponding magnetic conductive plate.

[0010] Optionally, each of the first magnet component and the second magnet component further includes an electromagnetic annular ring. The electromagnetic annular ring is disposed between the permanent magnet plate and the magnetic conductive plate, or between the permanent magnet plate and the side surface corresponding to the storage assembly. An electromagnetic coil is wound annularly along the circumferential direction inside the electromagnetic annular ring and is used to generate an electromagnetic field that superimposes on the permanent magnetic field of the corresponding permanent magnet plate when the electromagnetic coil is energized.

[0011] Optionally, the dimensions of the electromagnetic annular ring are equal to or less than those of the opposing permanent magnet plates, and the centers of the three components, namely the permanent magnet plate, the magnetic conductive plate, and the electromagnetic annular ring, of the first magnet component face each other, and the centers of the three components, namely the permanent magnet plate, the magnetic conductive plate, and the electromagnetic annular ring, of the second magnet component face each other.

[0012] Optionally, the first magnet component is disposed on the top wall of the storage assembly, the second magnet component is disposed on the bottom wall of the storage assembly, and the first magnet component is substantially the same size as the second magnet component.

[0013] Optionally, the first magnet component has the same magnetic field direction as the second magnet component, and the magnetic field direction in the storage chamber is from top to bottom or from bottom to top.

[0014] Optionally, the magnetic conductive connection member includes a first connection segment extending from the central portion on one lateral side of the first magnet component along the side wall on one side of the storage chamber to the central portion on the corresponding side of the second magnet component, and a second connection segment extending from the central portion on the other lateral side of the first magnet component along the side wall on the other side of the storage chamber to the central portion on the other side of the second magnet component, and the width of the first connection segment and the second connection segment along the depth direction from front to back is one-half to one-tenth of the length of the magnetic conductive assembly along the depth direction from front to back.

[0015] Optionally, the storage assembly includes a cylindrical body having a front opening, and a drawer that is slidably disposed within the cylindrical body and has a storage chamber formed therein.

[0016] According to another aspect of the present invention, a refrigerator is provided, which includes a housing having a storage chamber defined therein, and any one of the above magnetic field freshness maintaining storage containers disposed inside the storage chamber.

[0017] In the magnetic field freshness retention storage container of the present invention, a magnetic field is formed in the storage chamber by a magnet assembly. The magnetic field can contribute to the improvement of storage quality, shorten the freezing time, reduce the juice loss rate and nutritional loss of food, reduce the number of microorganisms and bacteria, and extend the freshness retention period. The magnetic conductivity assembly forms an annular magnetic conductivity passage outside the storage chamber by a first magnetic conductivity component, a second magnetic conductivity component, and a magnetic conductivity connection member, and a magnetic field with a uniform intensity that fully meets the requirements of storage quality is formed in the storage chamber.

[0018] Furthermore, in the magnetic field freshness retention storage container of the present invention, the first magnet component and the second magnet component each include a permanent magnet plate, and the permanent magnetic field of the permanent magnet plate is used as the basic magnetic field of the storage chamber. The magnetic conductivity plate is arranged by sticking to the permanent magnet plate, intensifies the magnetic field of the permanent magnet plate, avoids leakage to the outside of the magnetic field of the permanent magnet plate, increases the magnetic flux density of the storage chamber, and improves the magnetic field utilization efficiency.

[0019] Furthermore, in the magnetic field freshness retention storage container of the present invention, an electromagnetic annular ring is further arranged. When an electromagnetic coil wound in the electromagnetic annular ring is energized, an electromagnetic field is generated that superimposes on the permanent magnetic field of the corresponding permanent magnet plate. By the cooperation of the electromagnetic field and the permanent magnetic field, on the one hand, the magnetic flux density in the storage chamber is increased, the magnetic field is more evenly distributed, and the freshness of the food ingredients can be better maintained. On the other hand, by utilizing the characteristic that the electromagnetic field can be easily adjusted, appropriate adjustment of various magnetic fields can be realized to meet the storage requirements of different stored items.

[0020] Still further, in the magnetic field freshness retention storage container of the present invention, by improving the structures of the magnet assembly and the magnetic conductivity assembly, the structure of the magnetic field freshness retention storage container is made more compact, especially suitable for structures such as storage boxes and storage drawers, and magnetic field freshness retention can be realized in a relatively flat storage chamber.

[0021] Furthermore, in the refrigerator of the present invention, by providing the magnetic field freshness preservation storage container, the food ingredients are stored in a magnetic field environment, the growth of ice crystals is suppressed, the growth rate of ice crystals is higher than the water molecule movement rate, and the generated ice crystals are small. Therefore, damage to cells is reduced, juice loss is avoided, a better texture of the food ingredients is ensured, the frozen storage quality is improved, and the user's requirements for the storage quality of precious food ingredients can be satisfied.

[0022] Furthermore, in the refrigerator of the present invention, the storage quality is improved by the magnetic field, a new freshness preservation function is provided for the smart refrigerator, the increasing user usage needs for the smart refrigerator are met, and the user's requirements for the quality of the smart home and smart life can be further satisfied.

[0023] By referring to the following attached drawings and explaining the specific embodiments of the present invention in detail, the above and other objects, advantages, and features of the present invention will be apparent to those skilled in the art.

Brief Description of the Drawings

[0024] Some specific embodiments of the present invention will be described in detail below in an illustrative and non-limiting manner with reference to the attached drawings. The same reference numerals in the attached drawings indicate the same or similar parts or portions. Those skilled in the art should understand that these attached drawings are not necessarily drawn to scale.

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Mode for Carrying Out the Invention

[0025] FIG. 1 is a schematic perspective view of a refrigerator 10 with a magnetic field freshness retention storage container 200 according to an embodiment of the present invention. The refrigerator 10 of this embodiment generally includes a cabinet 120, a door body 110, and a refrigeration system (not shown in the figure). At least one (usually a plurality) of forwardly open storage chambers, such as a refrigerated storage chamber, a frozen storage chamber, a variable temperature storage chamber, etc., are defined within the cabinet 120. The specific number and functions of the storage chambers may be set according to preset needs.

[0026] The refrigerator 10 of this embodiment may be an air-cooled refrigerator. An air supply system is provided inside the cabinet 120. Cold air that has undergone heat exchange by a heat exchanger (evaporator) using a blower is sent from the air outlet to the storage compartment and returned from the return air outlet to the air duct to achieve refrigeration. The cabinet 120, the door body 110, and the refrigeration system itself of such a refrigerator are all well-known and can be easily realized by those skilled in the art. Therefore, in order not to obscure or blur the key points of the present invention, the following detailed descriptions of the cabinet 120, the door body 110, and the refrigeration system itself are omitted.

[0027] One or more magnetic field freshness retention storage containers 200 may be arranged inside one or more storage compartments of the refrigerator 10. When the magnetic field freshness retention storage container 200 is placed in the freezer storage compartment, it freezes frozen food to retain freshness, suppresses ice crystal growth, the ice crystal growth rate is higher than the water molecule movement rate, the generated ice crystals are small, reduces damage to cells, avoids juice loss, accelerates the freezing process, and shortens the freezing time. When the magnetic field freshness retention storage container 200 is placed in the refrigerated storage compartment, it can reduce the oxidation-reduction reaction rate of the food, suppress the loss of nutrients and moisture, stop the discoloration of the food, inhibit the growth of bacteria, and extend the food freshness retention period. The magnetic field freshness retention storage container 200 may be arranged in the refrigerated storage compartment, the freezer storage compartment, and the variable-temperature storage compartment, and may assist in freshness retention by a magnetic field in the above storage compartment, or may be an independent compartment of the refrigerator 10.

[0028] The number of magnetic field freshness retention storage containers 200 and the storage compartments in which they are arranged are set according to user needs. For example, one or more magnetic field freshness retention storage containers 200 are arranged inside the refrigerator 10.

[0029] The magnetic field intensity maintaining storage container 200 may generally include a storage assembly 210, a magnet assembly 220, and a magnetic conductivity assembly 230. A storage chamber for placing an object to be stored is defined within the storage assembly 210. The storage assembly 210 may be box-shaped. In some embodiments, the storage assembly 210 may be generally flat and rectangular in shape (i.e., the distance along the height direction is significantly smaller than the distance along the depth direction and the distance along the left-right lateral direction). The storage assembly 210 may be a drawer structure. That is, the storage assembly 210 may include a cylinder and a drawer. Here, the cylinder has a front opening. The drawer is disposed within the cylinder so as to be pullable. After the drawer is pulled out, the storage chamber is exposed, and access to the object to be stored is realized. After the drawer is pushed into the cylinder, an independent sealed space is formed.

[0030] FIG. 2 is a schematic view of a magnetic field intensity maintaining storage container 200 according to an embodiment of the present invention. FIG. 3 is an exploded view of the components of the magnetic field intensity maintaining storage container 200 shown in FIG. 2. FIG. 4 is a schematic view of the cooperation between the magnet assembly 220 and the magnetic conductivity assembly 230 in the magnetic field intensity maintaining storage container 200 shown in FIG. 2.

[0031] The magnet assembly 220 functions as a source of a magnetic field. The magnet assembly 220 is composed of a first magnet component 221 and a second magnet component 222 disposed on a pair of opposing side surfaces of the storage assembly 210, respectively, and the first magnet component 221 and the second magnet component 222 form a magnetic field in the storage chamber. The opposing side surfaces where the first magnet component 221 and the second magnet component 222 are located are selected according to the shape of the storage assembly 210 itself and its position within the refrigerator 10, and may be selected to be disposed, for example, 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 first magnet component 221 and the second magnet component 222 all face the storage chamber.

[0032] The storage assembly 210 is generally flat-shaped. Particularly when the storage assembly 210 is in the form of a drawer, the first magnet component 221 and the second magnet component 222 are preferentially arranged on the top and bottom sides of the storage assembly 210. The first magnet component 221 is arranged on the top wall of the storage assembly 210, and the second magnet component 222 is arranged on the bottom wall of the storage assembly 210, and the magnetic field penetrates the storage chamber from top to bottom or from bottom to top. With such an arrangement structure, the distance between the first magnet component 221 and the second magnet component 222 is reduced, and the strength and uniformity of the magnetic field are improved.

[0033] The first magnet component 221 has substantially the same structure and dimensions as the second magnet component 222, and the positions of the first magnet component 221 and the second magnet component 222 are set according to the structure of the side where they are located. Generally, the first magnet component 221 and the second magnet component 222 face the center of the side where each is located.

[0034] The first magnet component 221 and the second magnet component 222 each include a permanent magnet plate. The permanent magnet plate is arranged outside the side surface corresponding to the storage assembly 210, and the shape of the permanent magnet plate is the same as the shape of the corresponding side surface. For example, when the storage assembly 210 is rectangular, the permanent magnet plate may be a rectangle corresponding to the corresponding side surface of the storage assembly 210. For example, in an embodiment where the first magnet component 221 is arranged on the top wall of the storage assembly 210 and the second magnet component 222 is arranged on the bottom wall of the storage assembly 210, the permanent magnet plate of the first magnet component 221 may be the same as the shape of the top wall of the storage assembly 210, and the permanent magnet plate of the second magnet component 222 may be the same as the shape of the bottom wall of the storage assembly 210.

[0035] The permanent magnet plate ensures that a uniform magnetic field is formed at all positions in the storage chamber. That is, the storage chamber is within the magnetic field range without dead corners.

[0036] The magnetic conductivity assembly 230 consists of a first magnetic conductivity component 231, a second magnetic conductivity component 232, and a magnetic conductivity connection member 233. The first magnetic conductivity component 231 is arranged corresponding to the first magnet component 221. The second magnetic conductivity component 232 is arranged corresponding to the second magnet component 222. The magnetic conductivity connection member 233 is connected between the first magnetic conductivity component 231 and the second magnetic conductivity component 232. The first magnetic conductivity component 231, the second magnetic conductivity component 232, and the magnetic conductivity connection member 233 form an annular magnetic conductivity path outside the storage chamber.

[0037] The magnetic conductivity assembly 230 is made of a material with low coercivity and high permeability. The formed magnetic conductivity path intensifies the magnetic field, reduces the magnetic field emission to the outside, and reduces the interference to other components outside the storage assembly 210 (for example, avoiding magnetization of other components, etc.). The magnetic conductivity assembly 230 is made of silicon steel sheet or similar materials.

[0038] The first magnetic conductivity component 231 and the second magnetic conductivity component 232 each include a magnetic conductivity plate. That is, the first magnetic conductivity component 231 and the second magnetic conductivity component 232 are each in the plate-like structure of the magnetic conductivity plate. The magnetic conductivity plates are respectively arranged corresponding to the permanent magnet plates. The magnetic conductivity connection member 233 extends from the edge of the magnetic conductivity plate along the outside of the storage assembly 210 and is connected to the magnetic conductivity plate on the other side. For example, the magnetic conductivity plate of the first magnetic conductivity component 231 is arranged by sticking to the permanent magnet plate of the first magnet component 221, and the magnetic conductivity plate of the second magnetic conductivity component 232 is arranged by sticking to the permanent magnet plate of the second magnet component 222. The magnetic conductivity assembly 230 may be integrally formed. That is, the first magnetic conductivity component 231, the second magnetic conductivity component 232, and the magnetic conductivity connection member 233 are integrally formed. In some other embodiments, the first magnetic conductivity component 231, the second magnetic conductivity component 232, and the magnetic conductivity connection member 233 can also be fixed by welding or adhesion.

[0039] In an embodiment where the first magnet component 221 is disposed on the top wall of the storage assembly 210 and the second magnet component 222 is disposed on the bottom wall of the storage assembly 210, the magnetic conductive plate of the first magnetic conductive component 231 is disposed above the permanent magnet plate of the first magnet component 221, and the magnetic conductive plate of the second magnetic conductive component 232 is disposed below the permanent magnet plate of the second magnet component 222.

[0040] The projection onto the plane where the magnetic conductive plate of the storage chamber is located is within the range of the magnetic conductive plate, and the dimension of the permanent magnet plate is equal to or less than the dimension of the opposing magnetic conductive plate. That is, the magnetic conductive plate is equal to or slightly larger than the corresponding side surface of the storage assembly 210. In an embodiment where the first magnet component 221 is disposed on the top wall of the storage assembly 210 and the second magnet component 222 is disposed on the bottom wall of the storage assembly 210, the magnetic conductive plate of the first magnetic conductive component 231 covers the upper surface of the storage chamber, and the magnetic conductive plate of the second magnetic conductive component 232 covers the bottom surface of the storage chamber.

[0041] The dimension of the permanent magnet plate is smaller than the corresponding magnetic conductive plate and may coincide with the center of the magnetic conductive plate. The magnetic conductive plate intensifies and further equalizes the magnetic field of the permanent magnet plate.

[0042] The magnetic conductive connecting member 233 is used to connect the magnetic conductive plates of the first magnetic conductive component 231 and the second magnetic conductive component 232, and the size of the magnetic conductive connecting member 233 is set according to the state of the magnetic field. The magnetic conductive connecting member 233 may have an elongated shape and is connected to the central portion on one side of each magnetic conductive plate.

[0043] The magnetic conductivity connection member 233 may include a first connection segment 235 and a second connection segment 236. The first connection segment 235 connects one side of the magnetic conductivity plate of the first magnetic conductivity component 231 and the magnetic conductivity plate of the second magnetic conductivity component 232, and the second connection segment 236 connects the other side of the magnetic conductivity plate of the first magnetic conductivity component 231 and the magnetic conductivity plate of the second magnetic conductivity component 232. In the case of a cross-sectional view, the first magnetic conductivity component 231, the second magnetic conductivity component 232, and the magnetic conductivity connection member 233 form an annular ring on the outer periphery of the storage assembly 210.

[0044] In an embodiment where the first magnet component 221 and the second magnet component 222 are respectively arranged on the top wall and the bottom wall of the storage assembly 210, the first connection segment 235 extends from the central part of the lateral one side (for example, the right side) of the first magnet component 221 along the side wall of one side of the storage chamber to the central part of the corresponding side (for example, the right side) of the second magnet component 222, and the second connection segment 236 extends from the central part of the lateral other side (for example, the left side) of the first magnet component 221 along the side wall of the other side of the storage chamber to the central part of the other side (for example, the left side) of the second magnet component 222.

[0045] The magnetic conductivity connection member 233 may be strip-shaped, and the width of the first connection segment 235 and the second connection segment 236 along the front-rear depth direction is 1 / 2 to 1 / 10 of the length along the front-rear depth direction of the magnetic conductivity assembly 230. That is, the magnetic conductivity connection member 233 is arranged at the central position in the front-rear direction of the storage assembly 210.

[0046] With the structure of the magnetic conductivity assembly 230 described above, while meeting the magnetic field strength requirements, the use of magnetic conductivity materials and magnetic components can be reduced, the cost of the magnetic field freshness maintaining storage container 200 can be reduced, and the weight of the magnetic field freshness maintaining storage container 200 and the entire refrigerator 10 can be reduced. The magnetic field strength range is 1 Gs to 100 Gs. When applied to a freezing environment, the magnetic field strength range is preferably 5 to 60 Gs, for example, about 20 Gs. When applied to a refrigerating environment, the magnetic field strength range is 20 to 160 Gs, preferably 40 to 80 Gs, for example, about 60 Gs.

[0047] FIG. 5 is a schematic view of the magnetic field direction of the magnetic field intensity holding storage container 200 shown in FIG. 2. The first magnet component 221 has the same magnetic field direction as that of the second magnet component 222, and a uniform magnetic field is formed in the storage chamber. That is, the N poles of the permanent magnet plates of the first magnet component 221 and the second magnet component 222 face in one direction, and all the S poles face in the opposite direction. In the embodiment where the first magnet component 221 and the second magnet component 222 are respectively arranged on the top wall and the bottom wall of the storage assembly 210, the magnetic field direction in the storage chamber may be from top to bottom or from bottom to top. The magnetic field direction shown in FIG. 5 is from bottom to top. Based on the same technical concept, it is easy for those skilled in the art to realize a reverse magnetic field, that is, a magnetic field from top to bottom, by adjusting the magnetic pole direction.

[0048] The permanent magnetic field formed by the above permanent magnet plate is a static magnetic field, and the storage chamber can always be made to have a magnetic field of a certain intensity.

[0049] Based on the description of the first magnet component 221 and the second magnet component 222 arranged above and below, it is easy for those skilled in the art to realize the left-right arrangement or the front-back arrangement of the first magnet component 221 and the second magnet component 222 in other shaped storage assemblies 210.

[0050] FIG. 6 is a schematic view of the magnetic field direction of the magnetic field freshness retention storage container 200 according to another embodiment, and FIG. 7 is a schematic view of the cooperation of the magnet assembly 220 and the magnetic conductivity assembly 230 in the magnetic field freshness retention storage container 200 described in FIG. 6. In this embodiment, the first magnet component 221 and the second magnet component 222 are arranged left and right. The first magnet component 221 (shielded and not shown in FIGS. 6 and 7) is arranged on the right side of the storage assembly 210, and the second magnet component 222 is arranged on the left side of the storage assembly 210. Correspondingly, the magnetic conductivity plate of the first magnetic conductivity component 231 is located on the right side of the first magnet component 221, and the second magnetic conductivity component 232 is located on the left side of the second magnet component 222. The magnetic conductivity connection member 233 is connected to the first magnetic conductivity component 231 and the second magnetic conductivity component 232 from the center of the top and the center of the bottom of the storage assembly 210. The magnetic field direction shown in FIG. 6 is from right to left. Based on the same technical concept, it is easy for those skilled in the art to realize a reverse magnetic field, that is, a magnetic field from left to right, by adjusting the magnetic pole direction.

[0051] Similarly, it is easy for those skilled in the art to realize an embodiment in which the first magnet component 221 and the second magnet component 222 are arranged front and back.

[0052] In order to further increase the magnetic field strength and make the magnetic field adjustable, in this embodiment, a magnetic field freshness retention storage container 200 that generates an electromagnetic field in conjunction with a permanent magnetic field is further provided.

[0053] FIG. 8 is a schematic view of the magnetic field freshness retention storage container 200 according to still another embodiment of the present invention. FIG. 9 is an exploded view of the components of the magnetic field freshness retention storage container 200 shown in FIG. 8. FIG. 10 is a schematic view of the cooperation of the magnet assembly 220 and the magnetic conductivity assembly 230 in the magnetic field freshness retention storage container 200 shown in FIG. 8.

[0054] In this embodiment, in addition to the permanent magnet plate 223, an electromagnetic annular ring 224 is added as the first magnet component 221 and the second magnet component 222. The permanent magnet plate 223 is still arranged outside the side surface corresponding to the storage assembly 210, and the shape of the permanent magnet plate 223 is the same as the shape of the corresponding side surface.

[0055] The magnetic conductive plates of the first magnetic conductive component 231 and the second magnetic conductive component 232 are respectively arranged to face the permanent magnet plate 223, and the magnetic conductive connection member 233 extends from the edge of the magnetic conductive plate along the outside of the storage assembly 210 and is connected to the magnetic conductive plate on the other side.

[0056] The projection onto the plane where the magnetic conductive plate of the storage chamber is located is within the range of the magnetic conductive plate, and the dimension of the permanent magnet plate 223 is less than or equal to the dimension of the opposing magnetic conductive plate. That is, the magnetic conductive plate is equal to or slightly larger than the corresponding side surface of the storage assembly 210. In an embodiment where the first magnet component 221 is arranged on the top wall of the storage assembly 210 and the second magnet component 222 is arranged on the bottom wall of the storage assembly 210, the magnetic conductive plate of the first magnetic conductive component 231 can cover the upper surface of the storage chamber, and the magnetic conductive plate of the second magnetic conductive component 232 can cover the bottom surface of the storage chamber.

[0057] The dimension of the permanent magnet plate 223 is smaller than the corresponding magnetic conductive plate and coincides with the center of the magnetic conductive plate. That is, the permanent magnet plate 223 is arranged by adhesion in the central region of the magnetic conductive plate. The magnetic conductive plate can intensify and further homogenize the magnetic field of the permanent magnet plate 223.

[0058] The first magnet component 221 and the second magnet component 222 each further include an electromagnetic annular ring 224. The electromagnetic annular ring 224 may be arranged between the permanent magnet plate 223 and the magnetic conductive plate, or between the permanent magnet plate 223 and the corresponding side surface of the storage assembly. An electromagnetic coil is wound annularly along the circumferential direction within the electromagnetic annular ring 224. When the electromagnetic coil is energized, it is used to generate an electromagnetic field that superimposes on the permanent magnetic field of the corresponding permanent magnet plate 223.

[0059] The outer peripheral contour of the electromagnetic annular ring 224 is substantially the same as the contour of the permanent magnet plate 223, or slightly smaller than the permanent magnet plate 223. That is, the dimension of the electromagnetic annular ring 224 is less than or equal to the dimension of the opposing permanent magnet plate 223.

[0060] The centers of the three components, namely the permanent magnet plate 223, the magnetic conductive plate, and the electromagnetic annular ring 224, face each other. That is, the magnetic conductive plate can cover the magnetic conductive plate and the electromagnetic annular ring 224, expanding the magnetic field coverage space in the storage chamber and making the magnetic field in the storage chamber more uniform.

[0061] The number of turns of the electromagnetic coil in the electromagnetic annular ring 224 is set according to the desired magnetic field strength. The direction of the electromagnetic field formed by the electromagnetic annular ring 224 may be the same as the direction of the permanent magnetic field of the permanent magnet plate 223. In this embodiment, the magnetic conductive plate can also intensify the electromagnetic field and improve the uniformity of the magnetic field in the storage chamber.

[0062] By controlling the electromagnetic coil, the electromagnetic field can be 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 as needed. The above magnetic field adjustment can be achieved by adjusting the current passing through the electromagnetic coil. In some embodiments, the electromagnetic field can be adjusted according to the storage environment in the storage chamber and the storage state of the stored items. When the electromagnetic field is not activated, the permanent magnetic field of the permanent magnet plate 223 is used to maintain the basic magnetic field strength.

[0063] Hereinafter, taking the case where the storage assembly 210 has a flat drawer structure as an example, the structures of the first magnet component 221 and the second magnet component 222 arranged vertically will be described. Based on this, it is easy for those skilled in the art to realize the structures in which the first magnet component 221 and the second magnet component 222 are arranged horizontally or front-rear.

[0064] The first magnet component 221 is disposed on the top wall of the storage assembly 210, and the second magnet component 222 is disposed on the bottom wall of the storage assembly 210, and they have substantially the same structure and dimensions. The permanent magnet plate 223 of the first magnet component 221 may be the same as the shape of the top wall of the storage assembly 210, and the permanent magnet plate 223 of the second magnet component 222 may be the same as the shape of the bottom wall of the storage assembly 210. The dimensions of the magnetic conductive plate may be substantially the same as the dimensions of the corresponding side surface of the storage assembly 210.

[0065] The magnetic conductive plate of the first magnetic conductive component 231 is disposed above the permanent magnet plate 223 of the first magnet component 221, and the magnetic conductive plate of the second magnetic conductive component 232 is disposed below the permanent magnet plate 223 of the second magnet component 222. The dimensions of the magnetic conductive plate are equal to or greater than the dimensions of the permanent magnet plate 223, and it is disposed by adhesion in the central region of the permanent magnet plate 223.

[0066] The electromagnetic annular ring 224 of the first magnet component 221 may be interposed between the magnetic conductive plate and the permanent magnet plate 223 of the first magnetic conductive component 231, or between the permanent magnet plate 223 and the top wall of the storage assembly 210. The electromagnetic annular ring 224 of the second magnet component 222 may be interposed between the magnetic conductive plate and the permanent magnet plate 223 of the second magnetic conductive component 232, or between the permanent magnet plate 223 and the bottom wall of the storage assembly 210. The magnetic conductive plate of the first magnetic conductive component 231 can disperse and make uniform the magnetic field of the electromagnetic annular ring 224 of the first magnet component 221, and the magnetic conductive plate of the second magnetic conductive component 232 can disperse and make uniform the magnetic field of the electromagnetic annular ring 224 of the second magnet component 222, so that a uniform magnetic field is formed inside the storage chamber.

[0067] The first connection segment 235 extends from the central portion on one lateral side (for example, the right side) of the first magnet component 221 along the side wall on one side of the storage chamber to the central portion on the corresponding side (for example, the right side) of the second magnet component 222. The second connection segment 236 extends from the central portion on the other lateral side (for example, the left side) of the first magnet component 221 along the side wall on the other side of the storage chamber to the central portion on the other side (for example, the left side) of the second magnet component 222.

[0068] The first connection segment 235 and the second connection segment 236 extend from the center of the side end face of the magnetic conductive plate along the outside of the storage assembly 210.

[0069] The magnetic conductive connection member 233 may be strip-shaped, and its dimensions only need to satisfy the requirement of forming a magnetic conductive path, which can save the use of magnetic conductive materials, reduce costs, and at the same time reduce the weight.

[0070] The direction of the electromagnetic field is the same as the direction of the permanent magnetic field, realizing the superposition of magnetic fields and improving the magnetic field strength. FIG. 11 is a schematic diagram of the magnetic field direction of the magnetic field freshness holding storage container 200 shown in FIG. 8. The magnetic field directions of the electromagnetic field and the permanent magnetic field of the first magnet component 221 and the second magnet component 222 are all the same, and a uniform magnetic field is formed in the storage chamber. The magnetic field direction in the storage chamber may be from top to bottom or from bottom to top. The magnetic field direction shown in FIG. 11 is from bottom to top. Based on the same technical idea, it is easy for those skilled in the art to realize a reverse magnetic field, that is, a magnetic field from top to bottom.

[0071] The magnetic conductive assembly 230 enhances the uniformity of the magnetic field while guiding the magnetic field outside the storage chamber and reducing the influence of the magnetic field on other components other than the storage assembly 210.

[0072] By optimizing and improving the cooperative structure of the permanent magnetic plate 223, the magnetic conductive plate, the electromagnetic annular ring 224, and the magnetic conductive connection member 233, the structure can be made more compact, the occupied space can be reduced, the assembly to the storage assembly 210 can be facilitated, and it is convenient for use in the refrigerator 10.

[0073] FIG. 12 is a schematic diagram of the magnetic field direction of the magnetic field freshness retention storage container 200 according to another embodiment, and FIG. 13 is a schematic diagram of the cooperation of the magnet assembly 220 and the magnetic conductivity assembly 230 in the magnetic field freshness retention storage container 200 described in FIG. 12. In this embodiment, the first magnet component 221 and the second magnet component 222 are arranged left and right, and the first magnet component 221 and the second magnet component 222 each include an electromagnetic annular ring 224 and a permanent magnet plate 223. The first magnet component 221 (shielded and not shown in FIGS. 12 and 13) is arranged on the right side of the storage assembly 210, and the second magnet component 222 is arranged on the left side of the storage assembly 210. Correspondingly, the magnetic conductivity plate of the first magnetic conductivity component 231 is located on the right side of the first magnet component 221, and the second magnetic conductivity component 232 is located on the left side of the second magnet component 222. The magnetic conductivity connection member 233 is connected to the first magnetic conductivity component 231 and the second magnetic conductivity component 232 from the central top and central bottom of the storage assembly 210. The magnetic field direction shown in FIG. 12 is from right to left. Based on the same technical concept, it is easy for those skilled in the art to realize a reverse magnetic field, that is, a magnetic field from left to right, by adjusting the magnetic pole direction.

[0074] Similarly, it is easy for those skilled in the art to realize an embodiment in which the first magnet component 221 and the second magnet component 222 are arranged front and back.

[0075] FIG. 14 is a block diagram of the control system of the refrigerator 10 with the magnetic field freshness retention storage container 200 according to an embodiment of the present invention. In the refrigerator 10 of this embodiment, by combining magnetic field control and refrigeration control, food can be frozen in a magnetic field environment to achieve the effect of freshness retention freezing.

[0076] The refrigerator 10 may further include one or more of a storage temperature sensor 330, an opening / closing detector 340, and a refrigeration controller 310. The storage temperature sensor 330 detects the storage temperature in the storage chamber, and the opening / closing detector 340 is used to detect the opening / closing state of the storage chamber.

[0077] After the opening / closing detector 340 detects that the storage chamber has been opened, the storage temperature sensor 330 detects whether new food ingredients have been put in or whether it is necessary to re-freeze the original food ingredients. During the freezing process, the electromagnetic annular ring 224 and the refrigeration system 320 cooperate to assist freezing by means of a magnetic field, improving the effect of maintaining the frozen freshness of the food ingredients.

[0078] The controller 310 controls the electromagnetic annular ring 224 and the refrigeration system 320 and is used to achieve corresponding refrigeration and magnetic field control. Various sensors (including the storage temperature sensor 330 and the opening / closing detector 340) provide detection means for the above control and can meet the control needs of the control method.

[0079] The controller 310 may be configured to control the electromagnetic annular ring 224 to generate an electromagnetic field, for example, 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, according to the temperature of the storage chamber and the operating state of the refrigerator 10. Since the magnetic field is more useful in a specific storage stage of the stored object, when a stronger magnetic field is required, the controller 310 may activate the electromagnetic field, and in the case of normal storage, a permanent magnetic field may be used to maintain the basic magnetic field strength.

[0080] For example, when assisting refrigerated storage by means of a magnetic field, the controller 310 may be configured to activate the electromagnetic field when a new stored object is put into the storage chamber and the storage temperature is within the set temperature threshold range. The above temperature threshold range may be set according to the temperature during crystallization in the freezing process, and the magnetic field strength may be increased during the crystallization process. Or, during the normal storage process, the permanent magnetic field is maintained at a certain magnetic field strength, and the electromagnetic field is activated periodically to perform enhanced magnetic field treatment on the stored object. By the above control method, the stored object is frozen in a strong magnetic field environment, the growth of ice crystals is suppressed, damage to cells is avoided, loss of juice is avoided, a better texture of the food ingredients is guaranteed, the quality of refrigerated storage is improved, and the user's requirements for the storage quality of precious food ingredients can be met.

[0081] So far, a plurality of exemplary embodiments of the present invention have been comprehensively and detailedly described in this specification. However, it will be apparent to those skilled in the art that many other variations or modifications that conform to 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. Therefore, it should be understood that the scope of the present invention is intended to cover all such variations or modifications.

Claims

1. A storage assembly defining a storage chamber for placing an object to be stored therein, a magnet assembly including a first magnet component and a second magnet component disposed on a pair of opposing side surfaces of the storage assembly, respectively, and forming a magnetic field in the storage chamber by the first magnet component and the second magnet component, a magnetic conductivity assembly including a first magnetic conductivity component disposed corresponding to the first magnet component, a second magnetic conductivity component disposed corresponding to the second magnet component, and a magnetic conductivity connection member connected between the first magnetic conductivity component and the second magnetic conductivity component, wherein the first magnetic conductivity component, the second magnetic conductivity component, and the magnetic conductivity connection member form an annular magnetic conductivity path outside the storage chamber, wherein the magnetic conductivity connection member includes a first connection segment extending from a central portion on one lateral side of the first magnet component along a side wall on one side of the storage chamber to a central portion on the corresponding side of the second magnet component, and a second connection segment extending from a central portion on the other lateral side of the first magnet component along a side wall on the other side of the storage chamber to a central portion on the other side of the second magnet component, and a width of the first connection segment and the second connection segment along the depth direction in the front - rear direction is from one - half to one - tenth of a length of the magnetic conductivity assembly along the depth direction in the front - rear direction, a storage container for maintaining magnetic field sharpness.

2. The first magnet component and the second magnet component each include a permanent magnet plate disposed outside a side surface corresponding to the storage assembly, and a shape of the permanent magnet plate is the same as a shape of the corresponding side surface, the first magnetic conductivity component and the second magnetic conductivity component each include a magnetic conductivity plate, the magnetic conductivity plates are disposed opposite to the permanent magnet plates respectively, and the magnetic conductivity connection member extends from an edge of the magnetic conductivity plate along the outside of the storage assembly and is connected to the magnetic conductivity plate on the other side. The storage container for maintaining magnetic field sharpness according to Claim 1.

3. A projection of the magnetic conductivity plate of the storage chamber onto a plane where the magnetic conductivity plate is located is within a range of the magnetic conductivity plate, and a dimension of the permanent magnet plate is equal to or less than a dimension of the opposing magnetic conductivity plate. The storage container for maintaining magnetic field sharpness according to Claim 2.

4. The first magnet component and the second magnet component each further include an electromagnetic annular ring, and the electromagnetic annular ring is disposed between the permanent magnet plate and the magnetic conductive plate, or between the permanent magnet plate and the side surface corresponding to the storage assembly. An electromagnetic coil is wound annularly along the circumferential direction inside the electromagnetic annular ring, and is used to generate an electromagnetic field that superimposes on the permanent magnetic field of the corresponding permanent magnet plate when the electromagnetic coil is energized. The magnetic field sharpness maintaining storage container according to claim 3.

5. The dimensions of the electromagnetic annular ring are equal to or less than the dimensions of the opposing permanent magnet plates, and the centers of the three components, namely, the permanent magnet plate, the magnetic conductive plate, and the electromagnetic annular ring of the first magnet component, face each other, and the centers of the three components, namely, the permanent magnet plate, the magnetic conductive plate, and the electromagnetic annular ring of the second magnet component, face each other. The magnetic field sharpness maintaining storage container according to claim 4.

6. The first magnet component is disposed on the top wall of the storage assembly, the second magnet component is disposed on the bottom wall of the storage assembly, and the first magnet component is substantially the same size as the second magnet component. The magnetic field sharpness maintaining storage container according to any one of claims 1 to 5.

7. The first magnet component has the same magnetic field direction as the second magnet component, and the magnetic field direction in the storage chamber is from top to bottom or from bottom to top. The magnetic field sharpness maintaining storage container according to claim 6.

8. The storage assembly includes a cylindrical body having a front opening, and a drawer that is slidably disposed inside the cylindrical body and has a storage chamber formed therein. The magnetic field sharpness maintaining storage container according to any one of claims 1 to 5.

9. a housing that defines a storage chamber therein, and the magnetic field sharpness maintaining storage container according to any one of claims 1 to 5 disposed inside the storage chamber. A refrigerator.

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