Magnetic field fresh-keeping container and refrigerator

Abstract

The utility model provides a magnetic field fresh-keeping container and a refrigerator. The magnetic field fresh-keeping container comprises a storage device, the storage device is provided with a storage space and a refrigeration air path, the refrigeration air path is arranged on the side wall of the storage device and located outside the storage space, and the refrigeration air path is used for directly receiving refrigeration airflow from the refrigerator; the magnetic field device is arranged on the side wall of the storage device and used for generating a magnetic field in the storage space; the rotating part is rotatably arranged in the refrigeration air path, and the rotating part rotating in a magnetic field generated by the magnetic field device generates vortex heat to heat refrigeration air flow in the refrigeration air path, so that the refrigeration air flow can refrigerate and cool the storage space; and the situation that the storage temperature in the storage space drops too fast and exceeds the critical temperature of non-freezing storage is avoided, that is, the situation that non-freezing storage cannot be achieved below zero due to the fact that the storage temperature in the storage space is too low is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold storage technical field especially relates to a magnetic field fresh-keeping container and refrigerator. BACKGROUND

[0002] As a common household appliance, the refrigerator can store goods at low temperature. With the improvement of people's living standards, higher requirements are put forward for the fresh-keeping effect of the refrigerator. Through research, it is found that the storage of food can be well assisted by applying a magnetic field to the food, so that the food can be stored in a non-frozen state at subzero temperature, improving the fresh-keeping effect of the food.

[0003] However, although the food can maintain a non-frozen state at subzero temperature under the action of the magnetic field, the temperature cannot be too low, and if the temperature is lower than the critical value, the food will still quickly enter a frozen state. The temperature of the refrigeration airflow flowing out of the refrigeration chamber of the refrigerator is very low, which can easily cause the temperature to drop too quickly and cause the food to freeze, so that the non-frozen storage state of the food cannot be achieved. SUMMARY

[0004] An object of the utility model is to provide a magnetic field fresh-keeping container and refrigerator which can effectively prevent the storage temperature from being too low.

[0005] In particular, the utility model provides a magnetic field fresh-keeping container, comprising:

[0006] a storage device, which is provided with a storage space and a refrigeration air path arranged on the side wall of the storage device and located outside the storage space, the refrigeration air path being used to directly receive refrigeration airflow from the refrigerator;

[0007] a magnetic field device arranged on the side wall of the storage device, used to generate a magnetic field in the storage space; and

[0008] a rotating member rotatably arranged in the refrigeration air path, the rotating member rotating in the magnetic field generated by the magnetic field device generates eddy current heat to heat the refrigeration airflow in the refrigeration air path.

[0009] Optionally, the side wall of the storage device provided with the refrigeration air path is provided with one magnetic field device, and the magnetic pole distribution direction of the magnetic field device is parallel to the rotation axis of the rotating member.

[0010] Optionally, the rotating member comprises a disc part and a plurality of fan blades arranged on the disc part, the disc part is rotatably connected with the side wall of the storage device and one of the circular surfaces faces the connected side wall, the fan blades extend along the radial direction of the disc part and protrude along the axial direction of the disc part.

[0011] Optionally, the magnetic field device comprises a plurality of permanent magnetic sheets, poles of the plurality of permanent magnetic sheets are distributed in the same direction, and projections of the plurality of permanent magnetic sheets on a plane in which the circular surface of the disc part is located cover part of the disc part.

[0012] Optionally, the magnetic field device further comprises a uniform magnetic plate, the uniform magnetic plate is arranged on a side of the plurality of permanent magnetic sheets away from the storage space and is arranged in abutment with the plurality of permanent magnetic sheets.

[0013] Optionally, the storage device comprises:

[0014] an outer barrel provided with the storage space with a front end opening; and

[0015] a drawer arranged in the storage space in a pullable manner for containing stored objects, a front panel of the drawer being capable of shielding the front end opening of the outer barrel.

[0016] Optionally, the refrigeration air path is arranged on a top side wall of the outer barrel, an air receiving air path is arranged in the front panel of the drawer, a front end of the refrigeration air path is in communication with a top end of the air receiving air path, a bottom end of the air receiving air path is in communication with the storage space, the outer barrel is further provided with an air inlet in communication with the refrigeration air path and an air outlet in communication with the storage space, so that refrigeration air flow from the refrigerator sequentially flows through the air inlet, the refrigeration air path, the air receiving air path, the storage space and the air outlet to realize refrigeration of the storage space.

[0017] Optionally, at least one side wall of the drawer is provided with a moisture-permeable membrane, the moisture-permeable membrane being used to allow moisture in the drawer to permeate outward in a one-way manner.

[0018] Optionally, the magnetic field fresh-keeping container comprises two magnetic field devices, and the two magnetic field devices are arranged on opposite side walls of the storage device, respectively.

[0019] In another aspect of the present application, a refrigerator is also provided, comprising:

[0020] a cabinet; and

[0021] The magnetic field fresh-keeping container according to any one of the above is arranged in the cabinet.

[0022] The magnetic field preservation container and the refrigerator of the utility model can cut the magnetic induction lines generated by the magnetic field device through the rotating rotating member, and then generate eddy current heat. When the refrigeration airflow enters the refrigeration air path, the refrigeration airflow will be heated by the eddy current heat generated by the rotating member, and the temperature of the refrigeration airflow is increased to a certain extent, so that the refrigeration airflow can cool the storage space, and the storage temperature in the storage space is prevented from dropping too fast and exceeding the critical temperature of non-freezing storage, that is, the storage temperature in the storage space is prevented from being too low to realize zero-freezing storage.

[0023] The above and other objects, advantages and features of the present utility model will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] Some embodiments of the present utility model will be described in detail hereinafter with reference to the drawings, which are presented by way of illustration and not of limitation. Like reference numerals designate like elements or parts throughout the drawings. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0025] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present utility model;

[0026] Figure 2 is a schematic exploded view of a magnetic field preservation container according to an embodiment of the present utility model;

[0027] Figure 3 is a schematic diagram of a magnetic field preservation container according to an embodiment of the present utility model;

[0028] Figure 4 is a first schematic sectional view of a magnetic field preservation container according to an embodiment of the present utility model;

[0029] Figure 5 is a second schematic sectional view of a magnetic field preservation container according to an embodiment of the present utility model;

[0030] Figure 6 is a schematic diagram of a rotating member in a magnetic field preservation container according to an embodiment of the present utility model;

[0031] Figure 7 is a schematic exploded view of a magnetic field device in a magnetic field preservation container according to an embodiment of the present utility model;

[0032] Figure 8 is a schematic diagram of a magnetic field device in a magnetic field preservation container according to an embodiment of the present utility model;

[0033] Figure 9 is a schematic view of a drawer in a magnetic field fresh-keeping container according to an embodiment of the present application.

[0034] Explanation of reference signs:

[0035] 10, refrigerator; 100, cabinet; 101, cold storage chamber; 200, magnetic field fresh-keeping container; 201, storage space; 202, refrigeration air path; 203, air receiving air path;

[0036] 210, storage device; 211, outer barrel; 2111, air inlet; 2112, air outlet; 2113, outer top cover; 212, drawer;

[0037] 220, magnetic field device; 221, permanent magnet sheet; 222, uniform magnetizing plate; 223, mounting bracket;

[0038] 230, rotating member; 231, disc part; 232, fan blade; 240, moisture-permeable membrane. DETAILED DESCRIPTION

[0039] It should be understood by those skilled in the art that the embodiments described below are only part of the embodiments of the present application, not all embodiments of the present application, and the part of the embodiments are intended to explain the technical principles of the present application, not to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present application.

[0040] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] Further, it should be further pointed out that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] As Figure 1 shown, in one embodiment, the refrigerator 10 comprises a cabinet 100 and a magnetic field fresh-keeping container 200 in any of the following embodiments. The cabinet 100 is formed with a cold storage compartment 101. The magnetic field fresh-keeping container 200 is arranged in the cold storage compartment 101.

[0043] It should be noted that the refrigerator usually has multiple cold storage compartments for different functions. For example, a refrigeration compartment, a freezing compartment, a variable temperature compartment, etc. The number and functions of the cold storage compartments can be configured according to the pre-requisites. The fresh-keeping container can be arranged in any cold storage compartment. Figure 1 The refrigerator shown is only an example, and the number, function and layout of the cold storage compartments can be configured according to the requirements of those skilled in the art.

[0044] In addition, the refrigerator of the present embodiment is an air-cooled refrigerator. A refrigeration space and an air duct system are arranged in the cabinet. A fan and a heat exchanger (evaporator) are arranged in the refrigeration space. The fan is used to send the cold air that has been cooled by the heat exchanger to the cold storage compartment through the cabinet air outlet, and then returns to the refrigeration space through the cabinet air return, thereby achieving circulating air cooling. Since the cabinet, door body and refrigeration system of such a refrigerator are known and easy to implement for those skilled in the art, in order not to obscure and obscure the utility model point of the present application, the cabinet, door body and refrigeration system itself will not be described hereinafter.

[0045] As Figures 2 to 5 shown, in one embodiment, the magnetic field fresh-keeping container 200 comprises a storage device 210, a magnetic field device 220 and a rotating member 230. The storage device 210 is provided with a storage space 201 and a refrigeration air duct 202 arranged on the side wall of the storage device 210 and located outside the storage space 201. The refrigeration air duct 202 is used to directly receive the refrigeration airflow from the refrigerator, specifically, the refrigeration airflow that has just flowed out of the refrigeration space of the refrigerator. The magnetic field device 220 is arranged on the side wall of the storage device 210 to generate a magnetic field in the storage space 201. The rotating member 230 is rotatably arranged in the refrigeration air duct 202. The rotating member 230 rotating in the magnetic field generated by the magnetic field device 220 generates eddy current heat to heat the refrigeration airflow in the refrigeration air duct 202.

[0046] Referring to Figures 2 to 5 , specifically, the storage device 210 comprises an outer barrel 211 and a drawer 212. The outer barrel 211 is provided with a storage space 201 with a front end opening. The drawer 212 is arranged in the storage space 201 in a pullable manner, and is used to hold the stored objects. The front panel of the drawer 212 can shield the front end opening of the outer barrel 211.

[0047] Continuing to refer to Figures 2 to 5As shown, specifically, the outer barrel 211 is generally in the shape of a square box as a whole, and one of the side walls is removed, that is, the outer barrel 211 has five side walls, namely, an outer barrel top side wall, an outer barrel bottom side wall, an outer barrel rear side wall, an outer barrel left side wall, and an outer barrel right side wall, which are also side walls of the storage device 210, and the five side walls together enclose a storage space 201 having a front end opening. The drawer 212 is pullably arranged inside the outer barrel 211 through the front end opening of the storage space 201. In other words, the drawer 212 can be pulled out of or retracted into the storage space 201 through the front end opening of the storage space 201. When the drawer 212 is retracted into the storage space 201, the front panel of the drawer 212 can shield the front end opening of the outer barrel 211, so that the storage space 201 forms a closed storage environment.

[0048] As can be understood by those skilled in the art, by providing the storage device 210 with the outer barrel 211 and the drawer 212, the stored objects are stored in the drawer 212, which facilitates the taking and placing of the stored objects.

[0049] It should be noted that in some other embodiments, the storage device can also not be provided with a drawer, but only with an outer barrel provided with a closable door. It should be noted that the drawer side wall is also a side wall of the storage device, and the magnetic field device can also be arranged on the drawer side wall.

[0050] As shown in FIG. 1, Figures 2 to 5 As shown in FIG. 1,

[0051] As shown in FIG. 1, Figures 2 to 5 As shown in FIG. 1, specifically, the top side wall of the outer barrel 211 includes an inner top plate and an outer top cover 2113, the outer top cover 2113 covers the top of the inner top plate, and the refrigeration air path 202 is arranged between the top surface of the inner top plate and the bottom surface of the outer top cover 2113, that is, the refrigeration air path 202 is arranged in the top side wall of the outer barrel 211. The air inlet 2111 is arranged at the rear end of the outer top cover 2113 and communicates with the refrigeration space of the refrigerator, so that the refrigeration airflow generated in the refrigeration space of the refrigerator can enter the refrigeration air path 202 through the air inlet 2111, that is, the refrigeration air path 202 directly receives the refrigeration airflow from the refrigerator.

[0052] As shown in FIG. 1, Figures 2 to 5As shown, the air receiving wind channel 203 is arranged inside the front panel of the drawer 212, specifically, the front panel of the drawer 212 has a thicker and hollow portion, thereby forming the air receiving wind channel 203 inside. In addition, the top of the air receiving wind channel 203 has an opening, and the front end of the refrigeration wind channel 202 has an opening, the refrigeration airflow in the refrigeration wind channel 202 flows to the opening of the top of the air receiving wind channel 203 via the opening of the front end, and then enters the air receiving wind channel 203.

[0053] With reference to Figures 2 to 5 As shown, the bottom end of the air receiving wind channel 203 is also provided with an opening, so that the refrigeration airflow in the air receiving wind channel 203 can enter the storage space 201 from the opening of the bottom end of the air receiving wind channel 203, specifically, it will flow to the bottom wall between the drawer 212 and the outer barrel 211, and then flow backward and diffuse in the storage space 201. The rear side wall of the outer barrel 211 has an inner rear plate and an outer rear shell, the inner rear plate is provided with a through hole, and a passage is arranged between the inner rear plate and the outer rear shell, which communicates with the through hole and the air outlet 2112, so that the refrigeration airflow in the storage space 201 can flow out of the storage space 201 via the through hole and the air outlet 2112. The air outlet 2112 communicates with the refrigeration space of the refrigerator 10, so as to realize the circulating flow of the refrigeration airflow in the magnetic field preservation container 200.

[0054] It should be noted that in other embodiments, the refrigeration wind channel can also be formed in other side walls of the storage device, or the refrigeration wind channel can be formed in multiple side walls. In addition, the side wall of the storage device and the inner wall of the refrigerator cabinet can also form the refrigeration wind channel.

[0055] It should be noted that in other embodiments, the air receiving wind channel can also not be arranged, that is, only the temperature guiding effect of the side wall between the refrigeration wind channel and the storage space is used to refrigerate the storage space. Or, an opening is arranged in the side wall between the refrigeration wind channel and the storage space, so that the refrigeration airflow heated by the rotating member enters the storage space for refrigeration.

[0056] As shown in the drawings, Figures 2 to 5 As shown, the side wall of the storage device 210 provided with the refrigeration wind channel 202 is provided with a magnetic field device 220, and the magnetic pole distribution direction of the magnetic field device 220 is parallel to the rotation axis of the rotating member 230. Specifically, the top side wall of the storage device 210 is provided with a magnetic field device 220.

[0057] As shown in the drawings, Figures 2 to 5As shown, specifically, the magnetic field preservation container 200 includes two magnetic field devices 220, which are respectively arranged on the two side walls opposite to the storage device 210. In the embodiment, the two magnetic field devices 220 are respectively arranged on the top side wall and the bottom side wall of the outer barrel 211, that is, the top side wall and the bottom side wall of the storage device 210. Specifically, the magnetic field device 220 arranged on the top side wall of the outer barrel 211 is arranged between the inner top plate of the outer barrel 211 and the outer top cover 2113, that is, arranged in the refrigeration air path 202. The magnetic field device 220 arranged on the bottom side wall of the outer barrel 211 is arranged outside the bottom side wall of the outer barrel 211. The magnetic pole distribution directions of the two magnetic field devices 220 are the same and are both distributed along the longitudinal direction, that is, if the N pole of the magnetic field device 220 on the top is above the S pole, then the N pole of the magnetic field device 220 on the bottom is also above the S pole.

[0058] With reference to Figures 2 to 5 As shown, the rotating member 230 is arranged in the refrigeration air path 202, and the rotation axis of the rotating member 230 is along the longitudinal direction, that is, parallel to the magnetic pole distribution direction of the magnetic field device 220 on the top. The magnetic induction lines of the magnetic field device 220 on the top at the rotating member 230 are generally extended along the longitudinal direction, so that, in the process of rotation of the rotating member 230, the rotating main body part of the rotating member 230 will cut the magnetic induction lines, thereby generating eddy current heat. The refrigeration airflow entering the refrigeration air path 202 will be heated by the eddy current heat generated by the rotating member 230.

[0059] In the scheme of the embodiment, by arranging the magnetic field devices 220 on the side walls of the storage device 210 and arranging the rotating member 230 in the refrigeration air path 202 of the storage device 210, the rotating rotating member 230 can cut the magnetic induction lines generated by the magnetic field devices 220, thereby generating eddy current heat. When the refrigeration airflow enters the refrigeration air path 202, the refrigeration airflow will be heated by the eddy current heat generated by the rotating member 230, and the temperature of the refrigeration airflow will be increased to a certain extent, so that the refrigeration airflow can cool the storage space 201 while avoiding the storage temperature in the storage space 201 from decreasing too fast to cross the critical temperature of the freeze-free storage, that is, avoiding the storage temperature in the storage space 201 from being too low to realize the zero-freeze-free storage.

[0060] As can be understood by those skilled in the art, by arranging two magnetic field devices 220 on the opposite side walls and parallel to the rotation axis of the rotating member 230, the heating effect of the rotating member 230 can be improved on the basis of improving the magnetic field preservation effect, thereby appropriately reducing the size of the rotating member 230 while achieving the same heating effect.

[0061] It should be noted that in other embodiments, the magnetic field device and the rotating member can also be arranged on different side walls, but the magnetic pole distribution direction of the magnetic field device is configured to enable the magnetic induction lines generated thereby to be cut by the rotating member.

[0062] Furthermore, by setting the cooling air duct 202 on the top side wall of the outer tub 211, and providing an air intake duct 203 inside the front panel of the drawer 212, the front end of the cooling air duct 202 connects to the top end of the air intake duct 203, and the bottom end of the air intake duct 203 connects to the storage space 201. The outer tub 211 is also provided with an air inlet 2111 connected to the cooling air duct 202 and an air outlet 2112 connected to the storage space 201, so that the external cooling airflow flows sequentially through the air inlet 2111, the cooling air duct 202, the air intake duct 203, the storage space 201, and the air outlet 2112 to achieve cooling of the storage space 201. This allows the cooling airflow to surround the interior space of the drawer 212 from multiple directions, making the cooling of the interior space of the drawer 212 where the stored items are stored more uniform.

[0063] In addition, by setting a magnetic field device 220 on the side wall where the cooling air passage 202 is provided, and making the magnetic pole distribution direction of the magnetic field device 220 parallel to the rotation axis of the rotating member 230 set on the same side wall, the rotating member 230 and the magnetic field device 220 are brought as close as possible, thereby making the rotating member 230 have a larger magnetic induction intensity, improving the heating effect of the rotating member 230, and thus appropriately reducing the size of the rotating member 230 while achieving the same heating effect.

[0064] like Figures 2 to 6 As shown, in one embodiment, the rotating member 230 includes a disk portion 231 and a plurality of blades 232 disposed on the disk portion 231. The disk portion 231 is rotatably connected to the side wall of the storage device 210 and one of its circular surfaces faces the connected side wall. The blades 232 extend in the radial direction of the disk portion 231 and protrude in the axial direction of the disk portion 231.

[0065] Reference Figures 2 to 6 As shown, specifically, the disc portion 231 is a circular plate-shaped structure, the center of which is rotatably connected to the outer top cover 2113 of the outer barrel 211. One circular surface of the disc portion 231 faces the top sidewall of the outer barrel 211, that is, the rotation axis of the rotating member 230 is approximately perpendicular to the top sidewall of the outer barrel 211. One circular surface of the disc portion 231 is provided with three fan blades 232, which are evenly arranged on the circular surface of the disc portion 231 along the circumference. The fan blades 232 extend a certain length radially from the disc portion 231 and protrude a certain dimension from the circular surface along the axial direction of the disc portion 231, that is, the fan blades 232 have a certain length in the longitudinal direction.

[0066] In the scheme of the embodiment, by making the rotating member 230 include the disc part 231 and the plurality of fan blades 232 arranged on the disc part 231, the disc part 231 and the fan blades 232 can both cut the magnetic induction lines during rotation of the rotating member 230, thereby improving the heating efficiency. In addition, the plurality of fan blades 232 can drive the air to flow along the flow direction of the refrigeration airflow in the refrigeration air path, thereby playing a role of resisting the refrigeration airflow, so that the refrigeration airflow can more powerfully flow through the zigzag path formed by the refrigeration air path 202 and the air receiving air path 203, avoiding stagnation of the refrigeration airflow.

[0067] It should be noted that in other embodiments, the rotating member can also be provided only with a disc part or only with a plurality of fan blades having a certain length in the vertical direction of the side wall.

[0068] As shown in FIG. 2, Figures 2 to 8 In one embodiment, the magnetic field device 220 includes a plurality of permanent magnet pieces 221, the magnetic pole distribution directions of the plurality of permanent magnet pieces 221 are the same, and the projection of the plurality of permanent magnet pieces 221 on the plane of the circular surface of the disc part 231 covers part of the disc part 231. Specifically, the plurality of permanent magnet pieces 221 of the magnetic field device 220 arranged on the top of the outer barrel 211 are distributed in an array, and each two permanent magnet pieces 221 have a spacing therebetween. For the projection of the rotating member 230 and the magnetic field device 220 on the same horizontal plane, the projection of part of the permanent magnet pieces 221 and part of the spacing regions between the permanent magnet pieces 221 falls on the projection of the disc part 231.

[0069] In the scheme of the embodiment, by arranging the magnetic field device 220 as a plurality of permanent magnet pieces 221, the plurality of permanent magnet pieces 221 can generate a magnetic field in the storage space 201, that is, different positions in the storage space 201 are generated by the same permanent magnet piece 221, thereby helping to improve the uniformity of the magnetic field in the storage space 201 and improve the preservation effect. In addition, by making the projection of the plurality of permanent magnet pieces 221 on the plane of the circular surface of the disc part 231 cover part of the disc part 231, the magnetic flux change rate of the disc part 231 of the rotating member 230 is improved, thereby appropriately reducing the size of the rotating member 230 while achieving the same heating effect.

[0070] As shown in FIG. 2, Figures 2 to 8 The magnetic field device 220 further includes a uniform magnetization plate 222 arranged on the side of the plurality of permanent magnet pieces 221 away from the storage space 201 and abutting the plurality of permanent magnet pieces 221. Specifically, the uniform magnetization plate 222 is a plate-shaped structure made of a magnetic conductive material such as silicon steel, and the plurality of permanent magnet pieces 221 are arranged on the side of the uniform magnetization plate 222 facing the storage space 201. The uniform magnetization plate 222 can guide the magnetic field generated by the permanent magnet pieces 221, thereby making the magnetic field generated by the permanent magnet pieces 221 in the storage space 201 more uniform and improving the preservation effect.

[0071] It should be noted that in some other embodiments, the magnetic field device can also only include one large permanent magnet plate, or an electromagnetic coil.

[0072] Referring to Figures 2 to 8 In one embodiment, as shown in FIG. 22, when the magnetic field device 220 includes a plurality of permanent magnet plates 221, each magnetic field device 220 further includes a mounting bracket 223 having a plurality of mounting areas for mounting the permanent magnet plates 221. Specifically, the mounting bracket 223 is formed by hollowing out a plurality of through holes on a flat plate, the through holes having the same shape as the permanent magnet plates 221. The number of mounting areas is the same as the number of permanent magnet plates 221, and each permanent magnet plate 221 can be mounted on one mounting area.

[0073] As understood by those skilled in the art, by providing the mounting bracket 223, the mounting areas of the mounting bracket 223 can position the relative positions between the plurality of permanent magnet plates 221, not only facilitating the installation of the plurality of permanent magnet plates 221, but also ensuring that the spacing of the plurality of permanent magnet plates 221 after installation meets the predetermined requirements, thereby ensuring a good magnetic field effect.

[0074] Referring to Figures 2 to 5As shown, in one embodiment, the magnetic field device 220 is configured to generate a magnetic induction intensity of 1200 Gauss to 4000 Gauss at the rotating member 230, and the diameter of the disk portion 231 is set to 50 mm to 70 mm. In other words, the magnetic induction intensity at each point in the region where the disk portion 231 is located is between 1200 Gauss and 4000 Gauss, such as 1200 Gauss, 1300 Gauss, 1400 Gauss, 1500 Gauss, 1600 Gauss, 1700 Gauss, 1800 Gauss, 1900 Gauss, 2000 Gauss, 2100 Gauss, 2200 Gauss, 2300 Gauss, 2400 Gauss, 2500 Gauss, 2600 Gauss, 2700 Gauss, 2800 Gauss, 2900 Gauss, 3000 Gauss, 3100 Gauss, 3200 Gauss, 3300 Gauss, 3400 Gauss, 3500 Gauss, 3600 Gauss, 3700 Gauss, 3800 Gauss, 3900 Gauss, 4000 Gauss, etc. The diameter of the disc portion 231 is set to 50 mm to 70 mm, for example, 50 mm, 52 mm, 55 mm, 58 mm, 60 mm, 63 mm, 65 mm, 68 mm, 70 mm, etc. Furthermore, the thickness of the disc portion 231 is set to 1.5 mm to 3 mm, for example, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. The rotation speed of the rotating member 230 is configured to be between 1500 rpm and 2200 rpm, for example, 1500 rpm, 1600 rpm, 1700 rpm, 1800 rpm, 1900 rpm, 2000 rpm, 2100 rpm, 2200 rpm, etc.

[0075] The above configuration allows the heating efficiency of the rotating component 230 to be appropriate, achieving the effect of preventing condensation without excessively affecting the cooling efficiency of the storage space 201. Specifically, the heating power of the rotating component 230 can be between 1.5 watts and 2 watts.

[0076] like Figures 2 to 9 As shown, in one embodiment, at least one side wall of drawer 212 is provided with a moisture-permeable membrane 240, which allows moisture inside drawer 212 to permeate unidirectionally to the outside. Specifically, the rear side wall of drawer 212 is provided with a moisture-permeable membrane 240. Specifically, the moisture-permeable membrane 240 allows water vapor to pass through unidirectionally, that is, to permeate from the inside of drawer 212 to the outside. Because the air outlet 2112 of the outer tub 211 is located on the rear side wall, a low-pressure area can be formed outside the moisture-permeable membrane 240 when the cooling airflow flows, thereby making it easier for water vapor inside drawer 212 to permeate to the outside through the moisture-permeable membrane 240 and be carried out of storage space 201 by the cooling airflow, thereby reducing the amount of water vapor inside drawer 212 and reducing the occurrence of condensation in storage space 201.

[0077] It should be noted that the top end of the left side wall, the right side wall and the rear side wall of the drawer 212 is attached to the top side wall of the outer tub 211, so as to avoid water vapor returning to the inside of the drawer 212.

[0078] It should be noted that in other embodiments, the moisture-permeable film can also be provided on multiple side walls of the drawer, such as multiple of the left side wall, the right side wall, the bottom side wall and the rear side wall.

[0079] At this point, those skilled in the art should recognize that although the present application has been fully illustrated and described herein with a plurality of exemplary embodiments, many other variants or modifications in accordance with the principles of the present application can be directly determined or deduced from the content disclosed by the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. A magnetic field preserving container, characterized by, The magnetic field preservation container comprises: a storage device provided with a storage space and a refrigeration air path arranged on a side wall of the storage device and located outside the storage space, the refrigeration air path being used for directly receiving refrigeration airflow from a refrigerator; a magnetic field device arranged on a side wall of the storage device and used for generating a magnetic field in the storage space; and a rotating member rotatably arranged in the refrigeration air path, the rotating member rotating in the magnetic field generated by the magnetic field device to generate eddy current heat and heat the refrigeration airflow in the refrigeration air path.

2. The magnetic field preservation container according to claim 1, wherein the storage device is provided with one magnetic field device on the side wall of the refrigeration air path, and the magnetic pole distribution direction of the magnetic field device is parallel to the rotation axis of the rotating member.

3. The magnetic field preservation container according to claim 1, wherein the rotating member comprises a disc part and a plurality of fan blades arranged on the disc part, the disc part is rotationally connected with the side wall of the storage device and one circular surface thereof faces the connected side wall, and the fan blades extend along the radial direction of the disc part and protrude along the axial direction of the disc part.

4. The magnetic field preservation container according to claim 3, wherein the magnetic field device comprises a plurality of permanent magnet pieces, the magnetic pole distribution directions of the plurality of permanent magnet pieces are the same, and the projection of the plurality of permanent magnet pieces on the plane of the circular surface of the disc part covers part of the disc part.

5. The magnetic field preservation container according to claim 4, wherein the magnetic field device further comprises a uniform magnetization plate, the uniform magnetization plate is arranged on the side of the plurality of permanent magnet pieces away from the storage space and is arranged in close contact with the plurality of permanent magnet pieces.

6. The magnetic field preservation container according to claim 1, wherein the storage device comprises: an outer barrel provided with the storage space with a front end opening; and a drawer arranged in the storage space in a pullable manner and used for containing stored objects, and a front panel of the drawer can shield the front end opening of the outer barrel.

7. The magnetic field preservation container according to claim 6, wherein the refrigeration air path is arranged on the top side wall of the outer barrel, the drawer front panel is provided with an air receiving path, the front end of the refrigeration air path is in communication with the top end of the air receiving path, the bottom end of the air receiving path is in communication with the storage space, the outer barrel is further provided with an air inlet in communication with the refrigeration air path and an air outlet in communication with the storage space, so that the refrigeration airflow from the refrigerator flows through the air inlet, the refrigeration air path, the air receiving path, the storage space and the air outlet in sequence to realize the refrigeration of the storage space.

8. The magnetic field preservation container according to claim 7, wherein at least one side wall of the drawer is provided with a moisture permeable membrane, the moisture permeable membrane is used for allowing the moisture in the drawer to permeate outward in a one-way manner.

9. The magnetic field preservation container according to claim 1, wherein the magnetic field preservation container comprises two magnetic field devices, and the two magnetic field devices are arranged on two opposite side walls of the storage device, respectively. The magnetic field preservation container comprises: a box body; and ​ ​ ​ ​ ​ ​ ​ 10. A refrigerator characterized by comprising: ​ ​ ​ The magnetic field fresh keeping container according to any one of claims 1 to 9 is arranged in the box.

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