Magnetic field preserving storage container and refrigerator

Abstract

The application provides a magnetic field fresh-keeping storage container and a refrigerator. The magnetic field fresh-keeping storage container comprises a storage box, two uniform magnetic plates made of magnetic conductive material and arranged corresponding to a group of side walls of the storage box, and two groups of electromagnetic components, each group of electromagnetic components is arranged corresponding to one uniform magnetic plate and forms an electromagnetic field after being electrified, and the magnetic field distribution of the electromagnetic field is changed by the uniform magnetic plate, so that the electromagnetic field is more uniformly distributed in the storage space. The scheme of the application can make the stored objects have uniform storage quality. At the same time, the uniform magnetic plate can save the use amount of magnetic material. The refrigerator provides a new fresh-keeping function, meets the increasing use demand of users for intelligent refrigerators, and further meets the quality requirement of users for smart homes and intelligent life.

Description

TECHNICAL FIELD

[0001] The present application relates to a refrigeration and freezing device, and in particular to a magnetic field fresh-keeping storage container and a refrigerator. BACKGROUND

[0002] Users also pay more and more attention to the fresh-keeping effect of the refrigerator storage. For meat, fish, shrimp and other food materials, the juice loss during storage can cause poor taste and dark color. Especially for some high-grade food materials, the quality can be greatly reduced after a period of storage.

[0003] In order to improve the quality of the storage, many improvement schemes appear in the prior art, but some fresh-keeping storage effects are not ideal, and some have high implementation costs and are not convenient for application in household refrigerators. In the above improvement schemes, it is found that the magnetic field has a great influence on the formation of ice crystals during freezing. The field of refrigerator also actively explores the introduction of magnetic field into fresh-keeping storage, but in the actual application in the refrigerator, the magnetic field distribution in the storage space is uneven, and the magnetic field strength has a great influence on the fresh-keeping effect. The uneven distribution of the magnetic field in the fresh-keeping space makes it difficult to guarantee the storage quality of the stored materials. SUMMARY

[0004] An object of the present application is to provide a magnetic field fresh-keeping storage container and a refrigerator which effectively improve the quality of the storage.

[0005] A further object of the present application is to make the magnetic field in the storage space more uniform.

[0006] Another further object of the present application is to reduce the cost of components.

[0007] In particular, the present application provides a magnetic field fresh-keeping storage container, comprising:

[0008] a storage box, which defines a storage space for placing stored materials inside;

[0009] two uniform magnetic plates made of magnetic conductive material and respectively corresponding to a group of side walls opposite to the storage box;

[0010] two groups of electromagnetic components, each group of electromagnetic components corresponding to one uniform magnetic plate and forming an electromagnetic field after being energized, and changing the magnetic field distribution of the electromagnetic field by using the uniform magnetic plate to make the electromagnetic field more uniform in the storage space.

[0011] Optionally, one or more bosses are arranged on the side of each uniform magnetic plate facing the storage box; each group of electromagnetic components comprises one or more electromagnetic coils, and each electromagnetic coil is sleeved on a boss and has an electromagnetic coil arranged inside along the annular axis.

[0012] Optionally, the shape of the shim plate is adapted to the shape of the side wall of the storage box where it is located, and the projection of the storage space on the plane where the shim plate is located is located within the outer contour of the shim plate.

[0013] Optionally, a boss is provided on each shim plate, and the boss is located in the central area of ​​the shim plate, and the center of the electromagnetic ring sleeved on the boss is substantially opposite to the center of the shim plate.

[0014] Optionally, a plurality of bosses are arranged at intervals on each magnetic shim plate, and an electromagnetic ring is sleeved on each boss.

[0015] Optionally, each uniform magnetic plate covers a partial area of ​​the side wall of the storage box in which it is located, and its center is opposite to the center of the side wall, and a protrusion is provided on the side facing the storage box; each group of electromagnetic components includes an electromagnetic ring, and a partial section of the inner circumferential wall of the electromagnetic ring abuts against the protrusion.

[0016] Optionally, the magnetic field fresh-keeping storage container further comprises: a magnetic conductive connecting belt connected to both sides of the two uniform magnetic plates, and forming an annular magnetic conductive path with the two uniform magnetic plates outside the storage space.

[0017] Optionally, the magnetic field fresh-keeping storage container further includes:

[0018] a barrel having a forward opening;

[0019] The storage box is a drawer, which is drawable and arranged in the cylinder, and the two magnetic shim plates are respectively arranged on the top and bottom of the storage box.

[0020] Optionally, the magnetic shim plate is arranged on the outside or inside of the cylinder, and the minimum distance between the electromagnetic component and the storage area of ​​the storage space is set to be greater than 1 mm.

[0021] According to another aspect of the present invention, there is provided a refrigerator comprising:

[0022] a box body defining a storage compartment therein;

[0023] Any of the above-mentioned magnetic field fresh-keeping storage containers is arranged inside a storage compartment.

[0024] The magnetic field preservation storage container of the present invention comprises two uniform magnetic plates and two groups of electromagnetic components, each of which is arranged corresponding to a group of side walls opposite to the storage box. The uniform magnetic plates are made of a magnetic conductive material and can change the magnetic field distribution of the electromagnetic field formed by the electromagnetic components, so that the electromagnetic field is more evenly distributed within the storage space. The magnetic field helps to improve storage quality, shorten the freezing time, reduce the juice loss rate and nutrient loss of food, reduce the number of microorganisms and bacteria, and extend the shelf life. Since the magnetic field is more uniform, the stored items can have a uniform storage quality. At the same time, the uniform magnetic plates can save the amount of magnetic material used, avoiding the cost increase and weight increase caused by the use of too many or too large magnetic parts.

[0025] Furthermore, in the magnetic field preservation storage container of the present invention, a boss is provided on the side of the uniform magnetic plate facing the storage box. The boss can limit the electromagnetic component on the one hand, and on the other hand, it can facilitate the magnetic field to converge into the uniform magnetic plate, thereby improving the utilization efficiency of the magnetic field.

[0026] Furthermore, the magnetic field preservation storage container of the present invention optimizes the structure of the uniform magnetic plate and the electromagnetic component, making the magnetic field preservation storage container structure more compact, especially suitable for storage boxes and storage drawers, and realizing magnetic field preservation in a relatively flat storage space.

[0027] Furthermore, the refrigerator of the present invention is provided with the above-mentioned magnetic field fresh-keeping storage container, so that food can be stored in a magnetic field environment, which inhibits the growth of ice crystal nuclei. The ice crystal growth rate is higher than the migration rate of water molecules, and the ice crystals produced are smaller, thereby reducing damage to cells and avoiding juice loss, ensuring a better taste of food, improving the quality of frozen storage, and meeting users' storage quality requirements for precious food.

[0028] Furthermore, the refrigerator of the present invention improves the storage quality through the magnetic field, and can provide a new preservation function for smart refrigerators, which meets the users' increasing demand for smart refrigerators and further meets the users' quality requirements for smart homes and smart lives.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1is a schematic perspective view of a refrigerator with a magnetic field fresh-keeping storage container according to one embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of a magnetic field preservation storage container with a drawer structure according to one embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of a magnetic field preservation storage container according to one embodiment of the present invention;

[0034] Figure 4 yes Figure 3 An exploded view of the components of the magnetic field fresh-keeping storage container shown;

[0035] Figure 5 is an exploded view of components of a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0036] Figure 6 is a schematic diagram of a magnetic field preservation storage container according to another embodiment of the present invention;

[0037] Figure 7 yes Figure 8 An exploded view of the components of the magnetic field fresh-keeping storage container shown;

[0038] Figure 8 Schematic diagram of a magnetic field preservation storage container with a magnetic conductive connecting belt according to one embodiment of the present invention;

[0039] Figure 9 is a schematic diagram of a magnetic field preservation storage container with a magnetic conductive connecting belt according to another embodiment of the present invention;

[0040] Figure 10 is a schematic diagram of a magnetic field preservation storage container with a drawer structure according to another embodiment of the present invention; and

[0041] Figure 11 The present invention is a block diagram of a control system of a refrigerator with a magnetic field fresh-keeping storage container according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] Figure 1 This is a schematic perspective view of a refrigerator 10 equipped with a magnetic field fresh-keeping storage container 200 according to one embodiment of the present invention. The refrigerator 10 of this embodiment generally includes a housing 120, a door 110, and a refrigeration system (not shown). The housing 120 may define at least one storage compartment with an open front, typically multiple compartments, such as a refrigerated storage compartment, a frozen storage compartment, a variable temperature storage compartment, and so on. The specific number and function of the storage compartments can be configured based on pre-defined requirements.

[0043] The refrigerator 10 of this embodiment can be an air-cooled refrigerator. An air duct system is provided within the cabinet 120. A fan is used to deliver the refrigerated air, which has been heat-exchanged in the heat exchanger (evaporator), through the air supply port to the storage compartment, and then returns it to the air duct through the return air port, thereby achieving refrigeration. Since the cabinet 120, door 110, and refrigeration system of this type of refrigerator are well known and easily implemented by those skilled in the art, the cabinet 120, door 110, and refrigeration system will not be described in detail below in order to avoid obscuring or obscuring the inventive concept of this application.

[0044] One or more storage compartments of refrigerator 10 may be equipped with a magnetic field preservation storage container 200. When placed in a frozen storage compartment, the magnetic field preservation storage container 200 can be used to preserve frozen food by inhibiting the growth of ice crystal nuclei, causing the ice crystal growth rate to exceed the migration rate of water molecules. This results in smaller ice crystals, thereby reducing cell damage, preventing juice loss, accelerating the freezing process, and shortening freezing time. When placed in a refrigerated storage compartment, the magnetic field preservation storage container 200 can slow the redox reaction of food, reduce nutrient and water loss, prevent discoloration, inhibit bacterial growth, and extend the shelf life of food.

[0045] The number of magnetic field storage containers 200 and their placement in storage compartments can be configured based on user needs. For example, one or more magnetic field storage containers 200 can be installed within the refrigerator 10. These containers can be placed in refrigerated storage compartments, frozen storage compartments, or variable temperature storage compartments, providing magnetic field-assisted preservation within these compartments. The magnetic field storage containers 200 can also function as independent compartments within the refrigerator 10, with independent temperature control within the refrigerator 10.

[0046] The magnetic field preservation storage container 200 may include a storage box 210. The storage box 210 defines a storage space 212 for storing items. The storage box 210 may be box-shaped. In some embodiments, the storage box 210 may be an overall flat rectangular parallelepiped (i.e., the height is significantly smaller than the depth and the width). Those skilled in the art may configure the structure and size of the storage box 210 based on the desired storage space. The storage box 210 may be configured in a box or box shape, or in some embodiments, may be used to implement a drawer structure.

[0047] Figure 22 is a schematic diagram of a magnetic field preservation storage container 200 with a drawer structure according to an embodiment of the present invention. The storage box 210 may be a drawer structure, that is, the magnetic field preservation storage container 200 may further include: a cylinder 211. The cylinder 211 has a forward opening. The storage box 210 is retractably arranged within the cylinder 211. When the storage box 210 is pulled out, a storage space 212 is revealed for accessing and placing stored items. When the storage box 210 is pushed into the cylinder 211, an independent sealed space is formed. The structure of the drawer itself for refrigerators is well known to those skilled in the art and will not be described in detail here.

[0048] The two shimming plates 221 of the magnetic field preservation storage container 200 are made of a magnetically conductive material and are respectively arranged corresponding to a set of side walls arranged opposite to the storage box 210. The shimming plates 221 can be made of a material with low coercivity and high magnetic permeability, for example, silicon steel sheets or similar materials. The opposite sides where the shimming plates 221 are located can be selected based on the shape of the storage box 210 itself and the structure of the storage space 212. For example, they can be placed on the lateral sides, top and bottom sides, or front and back sides of the storage box 210. In other words, the two shimming plates 221 can be placed on the lateral left and right sides, top and bottom sides, or front and back sides of the storage box 210.

[0049] When the storage box 210 is flat as a whole, especially when the storage box 210 is in the form of a drawer, the two shim plates 221 can be preferably arranged at the top and bottom sides of the storage box 210. The magnetic field formed by the magnetic field preservation storage container 200 penetrates the storage space 212 from top to bottom or from bottom to top.

[0050] The magnetic field preservation storage container 200 has two sets of electromagnetic assemblies 222. Each set of electromagnetic assemblies 222 is arranged in correspondence with a shim plate 221. When energized, they form an electromagnetic field. The shim plates 221 are used to alter the magnetic field distribution of the electromagnetic field, making the electromagnetic field more evenly distributed within the storage space 212. In the case where the two shim plates 221 can be preferably arranged at the top and bottom of the storage box 210, the two sets of electromagnetic assemblies 222 are correspondingly arranged at the top and bottom of the storage box 210. In embodiments where the shim plates are arranged on other opposing side walls of the storage box, the two sets of electromagnetic assemblies 222 can be arranged on the corresponding side walls along with the shim plates.

[0051] The magnetic field strength range that meets the preservation requirements can be set to 1Gs-100Gs. When used in a freezing environment, the magnetic field strength range can preferably be 5-60Gs, for example, about 20Gs. When used in a refrigerated environment, the magnetic field strength range can be 20-160Gs, preferably 40-80Gs, for example, about 60Gs. That is, the uniform magnetic plate 221 and the electromagnetic assembly 222 can form a fresh-keeping magnetic field within the above magnetic field strength range that fully covers the storage space.

[0052] Figure 3 is a schematic diagram of a magnetic field fresh-keeping storage container 200 according to one embodiment of the present invention; Figure 4 yes Figure 3 The exploded view of the components of the magnetic field fresh-keeping storage container 200 is shown. In order to illustrate the matching relationship between the uniform magnetic plate 221 and the electromagnetic ring 223, Figure 5 The storage box 210 is omitted, and only the cylinder 211 for placing the storage box 210 is shown. The shape of the shim plate 221 is adapted to the shape of the side wall of the cylinder 211 in which it is located, and the projection of the storage space on the plane of the shim plate can be located within the outer contour of the shim plate. That is, the size of the shim plate 221 can be equal to or slightly larger than the corresponding side of the storage box 210. In the case where the shim plate 221 is arranged at the top and bottom of the cylinder 211, the top shim plate 221 can cover the top surface of the storage space 212 respectively; and the bottom shim plate 221 can cover the bottom surface of the storage space 212 respectively. The shim plate 221 can achieve dead-angle coverage of the magnetic field in the storage box 210.

[0053] Each shim plate 221 is provided with one or more bosses 224 on the side facing the storage box 210; each set of electromagnetic components 222 includes one or more electromagnetic rings 223, each electromagnetic ring 223 is sleeved on a boss 224, and an electromagnetic coil is wound around the inner ring along the annular axis. Figure 3 、 4 As shown, the top shim plate 221 has a downwardly disposed boss 224, and the bottom shim plate 221 has an upwardly disposed boss 224. Each shim plate 221 is provided with a boss 224, and the boss 224 is located in the central area of ​​the shim plate 221.

[0054] An electromagnetic coil is wound around the inside of the electromagnetic ring 223 along the circumferential direction. When the electromagnetic coil is energized, an electromagnetic field is formed in the storage space 212. By controlling the electromagnetic coil, the electromagnetic field can be set as needed to a static magnetic field with a constant magnetic field direction and / or magnetic field intensity, an alternating magnetic field with an alternating magnetic field direction and / or magnetic field intensity, or a pulsed magnetic field that is activated at intervals. The above-mentioned magnetic field adjustment can be achieved by adjusting the current passing to the electromagnetic coil. In some embodiments, the electromagnetic field can be adjusted according to the storage environment in the storage space 212 and the storage state of the stored items. In other embodiments, the electromagnetic field can also be a constant magnetic field with a constant magnetic field intensity.

[0055] The electromagnetic ring 223 can be formed into a flat ring, with both ends (top and bottom) being planar, and its thickness significantly smaller than the outer circumference. The ratio of the width to thickness of the electromagnetic ring 223 can be set within a range of 1-10. The electromagnetic ring 223 has a corresponding waterproof structure, such as using varnish, plastic sealing, a sealing ring, or a sealed shell to protect the electromagnetic coil inside, resulting in an overall flat ring shape. The electromagnetic ring 223 with this structure can more conveniently cooperate with the shim plate 221 and occupy less space. The electromagnetic ring 223 is mounted on a boss 224, within which the electromagnetic coil is wound along the annular axis. The contour of the boss 224 can be adapted to the shape of the inner circumferential through-hole of the electromagnetic ring 223, allowing the electromagnetic ring 223 to be easily mounted on the boss 224. The boss 224 also allows the magnetic field of the electromagnetic ring 223 to be guided into the shim plate 221, thereby using the shim plate 221 to change the magnetic field distribution of the electromagnetic field.

[0056] The number of turns of the electromagnetic coil within the electromagnetic ring 223 can be set according to the desired magnetic field strength. The electromagnetic field formed by the electromagnetic ring 223 is perpendicular to the sidewalls of the storage box 210, and the magnetic poles of the electromagnetic rings 223 on the opposite sidewalls are set to be consistent, so that a magnetic field is formed throughout the storage space. In other words, the north poles of the two electromagnetic rings 223 face the same direction, while the south poles face opposite directions. For example, the magnetic field direction can be from top to bottom or from bottom to top. Based on the same technical ideas, those skilled in the art can easily achieve magnetic fields in opposite directions.

[0057] Boss 224 is located in the center of shim plate 221, ensuring that the center of electromagnetic ring 223, mounted on boss 224, is approximately aligned with the center of shim plate 221. Boss 224 not only limits the position of electromagnetic ring 223 but also facilitates the convergence of magnetic fields into shim plate 221, improving magnetic field utilization efficiency.

[0058] The protruding height of the boss 224 can be substantially the same as or slightly smaller than the thickness of the electromagnetic ring 223 so that the shim plate 221 and the electromagnetic ring 223 can cooperate with the storage box 210 (or the cylinder 211).

[0059] The shim plate 221 expands the magnetic field range of the electromagnetic ring 223 and makes the electromagnetic field more uniform. The electromagnetic ring 223 and the shim plate 221 are arranged concentrically. The size of the shim plate 221 can be larger than the outer periphery of the electromagnetic ring 223, thereby expanding the coverage of the electromagnetic field.

[0060] Figure 5 2 is an exploded view of a magnetic field fresh-keeping storage container 200 according to another embodiment of the present invention. In order to illustrate the matching relationship between the uniform magnetic plate 221 and the electromagnetic ring 223, Figure 5The storage box 210 is omitted, and only the cylinder 211 for placing the storage box 210 is shown. In the magnetic field preservation storage container 200 of this embodiment, the two shim plates 221 of the magnetic field preservation storage container 200 are also respectively arranged corresponding to a group of side walls arranged opposite to the storage box 210, and can be placed on the lateral sides, top and bottom sides, or front and back sides of the cylinder 211. The size of the shim plates 221 can be equal to or slightly larger than the corresponding side surfaces of the storage box 210. When the shim plates 221 are arranged at the top and bottom of the cylinder 211, the top shim plates 221 can respectively cover the top surface of the storage space 212; and the bottom shim plates 221 can respectively cover the bottom surface of the storage space 212. The shim plates 221 can achieve full coverage of the magnetic field in the storage space 212.

[0061] Each shim plate 221 is provided with multiple bosses 224 spaced apart from each other, each boss 224 being fitted with an electromagnetic ring 223. The bosses 224 can be evenly distributed on the shim plates 221. For example, two or four bosses 224 of equal size can be arranged on the shim plate 221, each of which is fitted with an electromagnetic ring 223. The multiple electromagnetic rings 223 disperse the magnetic field distribution, further improving the uniformity of the magnetic field.

[0062] The number of the bosses 224 and electromagnetic rings 223 can be configured according to the size of the storage space 212. For example, for a storage box 210 with a larger storage space 212, the shim plate 221 can be provided with multiple bosses 224 that cooperate with multiple electromagnetic rings 223. For a storage box 210 with a smaller storage space 212, the shim plate can be provided with one boss 224 that cooperates with one electromagnetic ring 223.

[0063] The combination of the shim plates 221 and the electromagnetic rings 223 on both sides may have substantially the same structure, thereby forming a penetrating magnetic field in the storage space 212 . Figure 5 In the embodiment shown in FIG, the shim plates 221 at the top and bottom of the storage box 210 are provided with two bosses 224, and two electromagnetic rings 223 are provided at the top and bottom of the storage box 210 to cooperate with them. Based on this structure, those skilled in the art can easily implement more bosses 224 and electromagnetic rings 223 for cooperation.

[0064] Figure 6 is a schematic diagram of a magnetic field fresh-keeping storage container 200 according to another embodiment of the present invention; Figure 7 yes Figure 6 The exploded view of the components of the magnetic field fresh-keeping storage container 200 is shown. In order to illustrate the matching relationship between the uniform magnetic plate 221 and the electromagnetic ring 223, Figure 6 and Figure 7The storage box 210 is omitted in the figure, and only the cylinder 211 for placing the storage box 210 is shown. This embodiment further reduces the size of the shim plates 221 and reduces the weight of the magnetic field preservation storage container 200. The shim plates 221 are respectively arranged corresponding to a group of side walls arranged opposite the storage box 210 (or cylinder 211). Each shim plate 221 covers a portion of the side wall of the storage box 210 (or cylinder 211) in which it is located, with its center opposite the center of the side wall. A protrusion 225 is provided on the side facing the storage box 210. Each set of electromagnetic assemblies 222 includes an electromagnetic ring 223, a portion of the inner circumferential wall of which abuts the protrusion 225. The projection of the shim plates 221 onto the plane of the corresponding storage box 210 side wall can be located in the central area of ​​the storage box 210. For example, the shim plates 221 disposed at the top and bottom of the cylinder 211 may be positioned in the middle of the upper front-to-rear direction and the middle of the lower front-to-rear direction of the cylinder 211 .

[0065] The inner peripheral wall of the electromagnetic ring 223 can utilize the middle section to cooperate with the protrusion 225 of the shim plate 221 , so that the shim plate 221 can be used to change the electromagnetic field distribution.

[0066] Figure 8 2 is a schematic diagram of a magnetic field preservation storage container 200 having a magnetic connecting belt 230 according to an embodiment of the present invention. The magnetic field preservation storage container 200 may further include a magnetic connecting belt 230, which is connected to both sides of the two uniform magnetic plates 221, and forms a ring-shaped magnetic conductive path with the two uniform magnetic plates 221 outside the storage space 212. The magnetic connecting belt 230 connects the uniform magnetic plates 221 to form a ring-shaped magnetic conductive path outside the storage space 212. The magnetic connecting belt 230 can be made of the same material as the uniform magnetic plates 221, and the magnetic conductive path formed by it can be used to gather the magnetic field, improve the uniformity of the magnetic field in the storage space 212, and at the same time reduce the release of the magnetic field to the outside, thereby reducing interference with other components outside the magnetic field preservation storage container 200 (for example, avoiding magnetization of other components, etc.).

[0067] The magnetic connection strip 230 and the magnetic shim plate 221 can be an integral piece, that is, made of the same material. In other embodiments, the magnetic connection strip 230 and the magnetic shim plate 221 can also be spliced ​​together to form an annular magnetic path.

[0068] In the embodiment where the uniform magnetic plate 221 and the electromagnetic ring 223 are respectively arranged at the top and bottom of the storage box 210 (or the cylinder 211), a section of the magnetic connecting belt 230 can extend from the middle of one lateral side (for example, the right side) of the top uniform magnetic plate 221 along one side wall of the storage space to the middle of the corresponding side (for example, the right side) of the bottom uniform magnetic plate 221; another section of the magnetic connecting belt 230 extends from the middle of the other lateral side (for example, the left side) of the top uniform magnetic plate 221 along the other side wall of the storage space 212 to the middle of the other side (for example, the left side) of the bottom uniform magnetic plate 221.

[0069] The magnetic connecting strip 230 can be strip-shaped, with its width along the front-to-back depth direction being between one-half and one-tenth the length of the shim plate 221 along the front-to-back depth direction. In other words, the magnetic connecting strip 230 can be positioned in the middle of the shim plate 221 in the front-to-back direction and be significantly narrower than the shim plate 221. This arrangement of the magnetic connecting strip 230 and the shim plate 221 can reduce the use of magnetic materials and magnetic components while meeting magnetic field strength requirements, thereby reducing the cost of the magnetic field fresh-keeping storage container 200 and the weight of both the magnetic field fresh-keeping storage container 200 and the refrigerator 10 as a whole.

[0070] Figure 9 2 is a schematic diagram of a magnetic field preservation storage container 200 having a magnetic connection belt 230 according to another embodiment of the present invention. The magnetic shim plate 221 covers the middle area of ​​the side wall of the storage box 210 in which it is located, and its center is opposite to the center of the side wall. The magnetic connection belt 230 connects from the end of the magnetic shim plate 221 along the outside of the cylinder 211 to the magnetic shim plate 221 on the other side, thereby forming an annular magnetic path. The magnetic connection belt 230 and the magnetic shim plate 221 are located in the center of the front-to-back depth direction of the cylinder 211, thereby forming a magnetic path outside the storage space 212 to prevent the magnetic field from leaking outward.

[0071] In the case where the magnetic field preservation storage container 200 is a drawer structure, the uniform magnetic plate 221 can be arranged on the outside of the cylinder 211, for example, the uniform magnetic plate 221 and the electromagnetic assembly 222 are arranged above the top surface of the cylinder 211 and below the bottom surface of the cylinder 211. Considering that the electromagnetic assembly 222 will generate heat in the process of generating a magnetic field when it is energized, the distance between the electromagnetic assembly 222 and the stored objects in the storage space can be set to be no less than 1mm. The uniform magnetic plate 221 and the electromagnetic assembly 222 can be arranged on the outside of the cylinder 211, which can reduce the impact of the electromagnetic assembly 222 on the storage temperature of the stored objects in the storage space 212, and facilitate the cooling airflow to dissipate heat from the electromagnetic assembly 222.

[0072] Figure 10Figure 2 is a schematic diagram of a magnetic field preservation storage container 200 with a drawer structure according to another embodiment of the present invention. In this embodiment, the magnetic field preservation storage container 200 has a drawer structure, with a shim plate 221 and an electromagnetic assembly 222 disposed within a cylindrical body 211. Specifically, the shim plate 221 and electromagnetic ring 223 are disposed on the inner side of the top and bottom surfaces of the cylindrical body 211. The inner surface of the cylindrical body 211 can be provided with a structure for arranging the shim plate 221 and the electromagnetic assembly 222. This arrangement allows the electromagnetic assembly 222 to be closer to the stored items, facilitating the magnetic field's influence on the stored items. Given that the electromagnetic assembly 222 generates heat when powered to generate a magnetic field, the distance between the electromagnetic ring 223 and the stored items within the storage space 212 can be set to no less than 1 mm. This means that a gap of no less than 1 mm is provided between the electromagnetic ring 223 and the stored items.

[0073] Figure 11 This is a block diagram of a control system for a refrigerator 10 having a magnetic field fresh-keeping storage container 200 according to an embodiment of the present invention. The refrigerator 10 of this embodiment can also combine magnetic field control with refrigeration control to ensure that food is frozen in the magnetic field environment, achieving a fresh-keeping and freezing effect.

[0074] The refrigerator 10 may also be optionally provided with one or more of a storage temperature sensor 330 , an opening and closing detector 340 , and a refrigeration controller 310 . The storage temperature sensor 330 is used to detect the storage temperature in the storage space 212 , and the opening and closing detector 340 is used to detect the open and closed state of the storage space 212 .

[0075] When the opening and closing detector 340 detects that the storage space 212 is opened, the storage temperature sensor 330 can detect whether new food has been added or whether the existing food needs to be refrozen. During the refrigeration process, the electromagnetic ring 223 and the refrigeration system 320 cooperate to achieve magnetic field-assisted freezing, improving the freezing and preservation effect of the food.

[0076] The controller 310 is used to control the electromagnetic ring 223 and the refrigeration system 320, thereby achieving corresponding refrigeration and magnetic field control. Various sensors (including the storage temperature sensor 330 and the opening and closing detector 340) provide detection means for the above control, thereby meeting the control requirements of the control method.

[0077] The controller 310 can be configured to control the electromagnetic ring 221 to generate an electromagnetic field, such as a static magnetic field with a constant magnetic field direction and / or intensity, an alternating magnetic field with alternating magnetic field direction and / or intensity, or a pulsed magnetic field activated at intervals, based on the temperature of the storage space and the operating status of the refrigerator 10. Given that magnetic fields are more effective during specific storage stages of stored items, the controller 310 can activate the electromagnetic field when a stronger magnetic field is needed; during normal storage, a static magnetic field is used to maintain a basic magnetic field strength.

[0078] For example, when utilizing magnetic fields to assist frozen storage, controller 310 can be configured to activate the electromagnetic field when new items are placed in storage space 212 and the storage temperature is within a set temperature threshold. This temperature threshold can be set based on the temperature at which crystallization occurs during the freezing process, thereby increasing the magnetic field intensity during the crystallization process. This control method allows stored items to freeze in a strong magnetic field environment, prioritizing the inhibition of ice crystal nucleation, minimizing cell damage, and preventing juice loss. This ensures a better taste for the food, improves the quality of frozen storage, and satisfies users' expectations for the storage quality of precious ingredients.

[0079] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0080] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0081] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed or removable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0082] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0083] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0084] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0085] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A magnetic field fresh-keeping storage container, comprising: A storage box defines a storage space for storing items to be stored; Two magnetic shims are made of magnetic conductive material and are respectively arranged corresponding to a group of side walls arranged opposite to the storage box; Two groups of electromagnetic components, each group of electromagnetic components is correspondingly arranged with a shim plate, and an electromagnetic field is formed when power is applied, and the shim plate is used to change the magnetic field distribution of the electromagnetic field so that the electromagnetic field is more evenly distributed in the storage space; Wherein, one or more bosses are provided on the side of each magnetic shim plate facing the storage box; Each group of electromagnetic components includes one or more electromagnetic rings, each electromagnetic ring is sleeved on a boss, and an electromagnetic coil is wound around the inner side of the electromagnetic ring along the annular axis; The magnetic field fresh-keeping storage container also includes: The magnetic conductive connecting belt is connected to both sides of the two magnetic shim plates and forms an annular magnetic conductive path outside the storage space with the two magnetic shim plates.

2. The magnetic field fresh-keeping storage container according to claim 1, wherein: The shape of the shim plate is adapted to the shape of the side wall of the storage box where it is located, and the projection of the storage space on the plane where the shim plate is located is located within the outer contour of the shim plate.

3. The magnetic field fresh-keeping storage container according to claim 2, wherein: Each shim plate is provided with a boss, and the boss is located in the central area of ​​the shim plate, and the center of the electromagnetic ring sleeved on the boss is substantially opposite to the center of the shim plate.

4. The magnetic field fresh-keeping storage container according to claim 1, wherein A plurality of bosses are arranged at intervals on each of the magnetic shim plates, and an electromagnetic ring is sleeved on each of the bosses.

5. The magnetic field fresh-keeping storage container according to claim 1, wherein Each of the shim plates covers a portion of the side wall of the storage box, and its center is opposite to the center of the side wall, and a protrusion is provided on the side facing the storage box; Each set of electromagnetic components includes an electromagnetic ring, and a partial section of the inner peripheral wall of the electromagnetic ring abuts against the protrusion.

6. The magnetic field fresh-keeping storage container according to claim 1, further comprising: a barrel having a forward opening; The storage box is a drawer, which is drawable and arranged in the cylinder, and the two shim plates are respectively arranged on the top and bottom of the storage box.

7. The magnetic field fresh-keeping storage container according to claim 6, wherein The magnetic shim plate is arranged on the outside or inside of the cylinder, and the minimum distance between the electromagnetic component and the storage area of ​​the storage space is set to be greater than 1 mm.

8. A refrigerator comprising: a box body defining a storage compartment therein; The magnetic field preservation storage container according to any one of claims 1 to 7 is arranged inside the storage compartment.

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