US-12622441-B2 - Magnetic field freshness-preserving storage container and refrigerator

Abstract

A magnetic field freshness-preserving storage container ( 200 ) includes a storage assembly ( 210 ), in which a storage space for holding a stored object is defined; and one or more magnetic field assemblies ( 201 ) respectively sleeved on the periphery of the storage assembly ( 210 ). Each magnetic field assembly ( 201 ) comprises: one or more magnetic components ( 220 ) arranged on an outer side of the storage assembly ( 210 ) and used to form a magnetic field in the storage space; and an annular magnetically conductive component ( 230 ), which comprises uniform magnetization plates ( 231 ) arranged corresponding to the magnetic components ( 220 ), and connecting straps ( 232 ) connected to the uniform magnetization plates ( 231 ) and arranged around the periphery of the storage assembly ( 210 ), the uniform magnetization plates ( 231 ) and the connecting straps ( 232 ) forming an annular magnetic conduction path outside the storage space.

Inventors

• Yanfeng ZHAO
• Mengcheng LI
• BIN FEI
• Xiaobing Zhu
• LISHENG JI
• Yuning Zhang
• Yao Yi
• Tao Li
• Zilin CAO

Assignees

• QINGDAO HAIER REFRIGERATOR CO., LTD.
• Haier Smart Home Co., Ltd.

Dates

Publication Date

20260512

Application Date

20220721

Priority Date

20210811

Claims (8)

1. 1 . A magnetic field freshness-preserving storage container, comprising: a storage assembly defining a storage space for placing storage subjects; one or more magnetic field assemblies surrounding the storage assembly, and each magnetic field assembly comprising: two magnetic components positioned outside the storage assembly and on opposite sides of the storage assembly to form a magnetic field in the storage space; an annular magnetically conductive component having a pair of uniform magnetization plates corresponding to the two magnetic components and connecting straps connected to the uniform magnetization plates and arranged around the periphery of the storage assembly, the uniform magnetization plates and the connecting straps forming an annular magnetic conduction path outside the storage space; wherein the connecting straps include two segments of connecting straps, and each connecting strap extends from an edge of the uniform magnetization plate on one side to an edge of the uniform magnetization plate on the other side along the storage assembly's outer wall; wherein the connecting straps are strip-shaped, and a width of each connecting strap along a direction perpendicular to an arrangement direction of the two magnetic components is between half to one-tenth of a length of each uniform magnetization plate in the same direction.
2. 2 . The magnetic field freshness-preserving storage container according to claim 1 , wherein each magnetic component comprises: an electromagnetic coil having electromagnetic wire coils wound internally along an annular circumference, and when electrified, the electromagnetic wire coils generating an electromagnetic field in the storage space; and the uniform magnetization plates positioned at a central through-hole of the corresponding electromagnetic coil, and uniform magnetization plates matching the central through-hole's shape, or abutting against the electromagnetic coil.
3. 3 . The magnetic field freshness-preserving storage container according to claim 1 , wherein there is one magnetic field assembly, and the shapes of two magnetic components of the magnetic field assembly is matched with the shape of the side surfaces of the storage assembly which the magnetic components are placed on.
4. 4 . The magnetic field freshness-preserving storage container according to claim 3 , wherein the storage assembly is flat, and two magnetic components are positioned at top and bottom sides respectively.
5. 5 . The magnetic field freshness-preserving storage container according to claim 1 , wherein multiple magnetic field assemblies are spaced apart from each other along a depth direction or a height direction of the storage assembly.
6. 6 . The magnetic field freshness-preserving storage container according to claim 1 , wherein the storage assembly comprises: a cylindrical body having a forward opening; and a drawer, slidably positioned in the cylindrical body, and forming the storage space therein.
7. 7 . A refrigerator, comprising: a cabinet defining a storage compartment; the magnetic field freshness-preserving storage container according to claim 1 positioned inside the storage compartment.
8. 8 . A magnetic field freshness-preserving storage container, comprising: a storage assembly defining a storage space for placing storage subjects; one or more magnetic field assemblies surrounding the storage assembly, and each magnetic field assembly comprising: one magnetic component positioned outside the storage assembly to form a magnetic field in the storage space; an annular magnetically conductive component having a pair of uniform magnetization plates corresponding to the magnetic component and connecting straps connected to the uniform magnetization plates and arranged around the periphery of the storage assembly, the uniform magnetization plates and the connecting straps forming an annular magnetic conduction path outside the storage space; wherein the magnetic components of two adjacent magnetic field assemblies are disposed on opposite sides of the storage assembly; the connecting straps include two segments of connecting straps, and each connecting strap extends from an edge of the uniform magnetization plate on one side to an edge of the uniform magnetization plate on the other side along the storage assembly's outer wall; wherein the connecting straps are strip-shaped, and a width of each connecting strap along an arrangement direction of the adjacent magnetic field assemblies is between half to one-tenth of a length of each uniform magnetization plate in the same direction.

Description

TECHNICAL FIELD The present invention relates to a refrigeration and freezing equipment, and in particular, to a magnetic field freshness-preserving storage container and a refrigerator. BACKGROUND There is increasing attention to the freshness preservation of subjects stored in refrigerators. Food materials, such as meat, fishes and shrimps, are prone to lose juice to worsen a taste and darken a color during storage. In particular, some high-grade food materials have greatly reduced quality after stored for a period of time. To improve the quality of storage subjects, several advancements have been introduced in existing technologies, but some are not ideally effective in preserving freshness, and others are costly, thereby making them impractical for household refrigerators. In these improvements, theoretical research has found that magnetic fields significantly influence the formation of ice crystals during the freezing process. The field of refrigeration has actively explored incorporating magnetic fields into fresh-keeping storage, however when use in refrigerators, providing sufficient magnetic field strength in refrigerators requires a large amount of magnetic material, leading to high costs and increased product weight. SUMMARY An object of the present invention is to provide a magnetic field freshness-preserving storage container and a refrigerator that effectively improves storage quality while reducing component costs. A further object of the present invention is to facilitate the installation and application of the magnetic field freshness-preserving storage container in refrigerators. In particular, the present invention is directed to a magnetic field freshness-preserving storage container, comprising: a storage assembly defining a storage space for placing storage subjects;one or more magnetic field assemblies surrounding the storage assembly, and each magnetic field assembly comprising:one or more magnetic components positioned outside the storage assembly to form a magnetic field in the storage space;an annular magnetically conductive component having uniform magnetization plates corresponding to the magnetic components and connecting straps connected to the uniform magnetization plates and arranged around the periphery of the storage assembly, the uniform magnetization plates and the connecting straps forming an annular magnetic conduction path outside the storage space. Further, each magnetic component comprises: an electromagnetic coil having electromagnetic wire coils wound internally along an annular circumference, and when electrified, the electromagnetic wire coils generating an electromagnetic field in the storage space; andthe uniform magnetization plates positioned at a central through-hole of the corresponding electromagnetic coil, and uniform magnetization plates matching the central through-hole's shape, or abutting against the electromagnetic coil. Further, each magnetic field assembly has two magnetic components on opposite sides of the storage assembly, and the annular magnetically conductive component defines a pair of uniform magnetization plates at corresponding positions of the two magnetic components. Further, the connecting straps include two segments of connecting straps, and each connecting strap extends from an edge of the uniform magnetization plate on one side to an edge of the uniform magnetization plate on the other side along the storage assembly's outer wall. Further, there is one magnetic field assembly, and the shapes of two magnetic components of the magnetic field assembly is matched with the shape of the side surfaces of the storage assembly which the magnetic components are placed on. Further, the storage assembly is flat, and two magnetic components are positioned at top and bottom sides respectively. Further, multiple magnetic field assemblies are spaced apart from each other along a depth direction or a height direction of the storage assembly. Further, each magnetic field assembly has one magnetic component, and the magnetic components of two adjacent magnetic field assemblies are disposed on opposite sides of the storage assembly. Further, the storage assembly comprises: a cylindrical body having a forward opening; anda drawer, slidably positioned in the cylindrical body, and forming the storage space therein. The present invention is further directed to a refrigerator comprising: a cabinet defining a storage compartment;the aforementioned magnetic field freshness-preserving storage container positioned inside the storage compartment. The magnetic field freshness-preserving storage container of the present invention comprises one or more magnetic field assemblies surrounding the storage assembly, thereby creating a magnetic field in the storage space. The magnetic field can help improve storage quality and shorten freezing time, thereby reducing juice and nutrient loss, decreasing microorganism and bacteria counts, and extending the freshness period