Fresh-keeping storage container and refrigerator

Abstract

A fresh-keeping storage container (30) and a refrigerator (10). The fresh-keeping storage container (30) comprises: an inner chamber (318), wherein a fresh-keeping storage space (330) for placing a stored object is provided inside the inner chamber (318); and a first magnetic field assembly (411) provided on the outer side of the side wall of one side of the inner chamber (318), wherein an air supply and return channel for refrigeration airflow to pass through is formed between the first magnetic field assembly (411) and the side wall of the inner chamber (318). An air supply and return channel is formed between the first magnetic field assembly (411) and the inner chamber (318), so that refrigeration airflow is closer to the fresh-keeping storage space (330), and the fresh-keeping storage space (330) can be refrigerated more quickly in the refrigeration process, thereby accelerating the cooling speed and reducing the effective time of bacterial reproduction, and thus prolonging the preservation period.

Description

Fresh-keeping storage containers and refrigerators

[0001] This application is based on the Chinese patent application with application number 202311027615.9 and application date of August 15, 2023, and claims the priority of the aforementioned Chinese patent application. The entire content of the above-mentioned patent application is hereby introduced into this application as a reference. Technical Field

[0002] The present application relates to a refrigeration and freezing storage device, and in particular to a fresh-keeping storage container and a refrigerator. Background Art

[0003] The freshness and storage performance of household refrigerators and freezers has become a key performance indicator. Fresh ingredients like meat, fish, and shrimp are prone to losing juice during storage, resulting in a poor taste and darkening of color.

[0004] Existing research has found that magnetic fields significantly influence ice crystal formation during the freezing process. Technicians have also attempted to apply magnetic field preservation technology to household refrigerators and freezers, but the results have been less than satisfactory. A key reason for this poor performance is the impact of magnetic field devices on the refrigeration process. On the one hand, the magnetic field device affects the cooling of the storage space; on the other hand, when using the magnetic field element of the electromagnetic coil, the electromagnetic coil also generates heat, causing significant fluctuations in the refrigeration temperature.

[0005] The reference to any prior art in the specification is not an acknowledgement or suggestion that the prior art forms part of the common general knowledge in any jurisdiction, or that it could reasonably be expected that the person skilled in the art would understand, consider relevant and / or combine with other prior art. Summary of the Invention

[0006] One purpose of the present application is to provide a fresh-keeping storage container and a refrigerator that improve the refrigeration speed of the storage space.

[0007] A further object of the present application is to prevent the electromagnetic coil from causing temperature fluctuations in the storage space.

[0008] In particular, the present application provides a fresh-keeping storage container, which includes:

[0009] The inner barrel body has a fresh-keeping storage space for storing stored items;

[0010] The first magnetic field component is arranged on the outer side of the side wall of the inner barrel body; and a return air duct for the cooling air flow to pass through is formed between the first magnetic field component and the side wall of the inner barrel body.

[0011] Optionally, the fresh-keeping storage container further includes:

[0012] The air duct component is arranged between the first magnetic field component and the side wall of the inner barrel body, and is configured to define a return air duct.

[0013] Optionally, the fresh-keeping storage container further includes:

[0014] The air duct member is provided with a heat-insulating layer between the return air duct and the side wall of the inner barrel body.

[0015] Optionally, the insulation layer is made of insulation foam material with a thickness ranging from 5 to 10 mm; or

[0016] The insulation layer is made of vacuum insulation panels with a thickness ranging from 2 to 5 mm.

[0017] Optionally, a cold storage component is provided between the return air duct and the side wall of the inner barrel body. The cold storage component stores cold energy when the return air duct is ventilated, and releases cold energy to the fresh-keeping storage space through the side wall of the inner barrel body when the return air duct stops ventilating.

[0018] Optionally, the duct member is provided with at least one diverter rib in the supply and return air duct, and the diverter rib is used to divide the air flowing through the supply and return air duct into a plurality of air flow channels, and is configured so that the air flow flowing through each air flow channel is substantially the same.

[0019] Optionally, the duct member is made of thermal insulation foam material.

[0020] Optionally, the above-mentioned fresh-keeping storage container further includes:

[0021] The outer barrel shell is arranged on the outside of the inner barrel body, and there may be an interlayer space between the outer barrel shell and at least one side wall of the inner barrel body.

[0022] The first magnetic field component and the air duct component are both arranged in the interlayer space.

[0023] Optionally, the first magnetic field component includes:

[0024] a first magnetic conductive plate, disposed on the inner side of the side wall of the barrel shell;

[0025] The first magnetic source piece is attached to the inner side of the first magnetic conductive plate and is opposite to the air duct component.

[0026] Optionally, the first magnetic field component is arranged above the top wall of the inner barrel body, and the return air duct is connected to the fresh-keeping container air supply channel that provides refrigerated airflow to the fresh-keeping storage container, and serves as an air supply section for introducing refrigerated airflow.

[0027] Optionally, the inner barrel has a forward opening; and the fresh-keeping storage container further comprises:

[0028] The drawer is pullable and arranged in the inner barrel body, and the drawer includes a drawer end plate assembly. The drawer end plate assembly seals the forward opening when the drawer is placed in the inner barrel body. The wind section defined in the drawer end plate assembly is connected to the air supply section; a cooling section connected to the wind section is formed between the bottom of the drawer and the inner barrel body.

[0029] Optionally, the fresh-keeping storage container further includes:

[0030] The second magnetic field component is arranged on the outer side of the side wall of the inner barrel away from the first magnetic field component, and is arranged opposite to the first magnetic field component, so that the fresh-keeping storage space is located between the first magnetic field component and the second magnetic field component.

[0031] Optionally, the first magnetic field assembly cooperates with the second magnetic field assembly to form a magnetic field in the fresh-keeping storage space, the effective magnetic field strength range of the magnetic field is 10-100 GS, and the effective magnetic field spacing range is 60-240 mm.

[0032] According to another aspect of the present application, a refrigerator is provided, which includes any one of the above-mentioned fresh-keeping storage containers.

[0033] In the fresh-keeping storage container and refrigerator of the present application, the return air duct is arranged between the first magnetic field component and the inner barrel body, so that the return air duct is closer to the fresh-keeping storage space. During the refrigeration process, the fresh-keeping storage space can be cooled faster, thereby accelerating the cooling speed, reducing the effective time for bacteria to reproduce, and thus extending the preservation period.

[0034] Furthermore, in order to improve the preservation effect and avoid the temperature in some areas of the fresh-keeping storage space being too low and affecting the preservation effect, the fresh-keeping storage container and refrigerator of the present application are also provided with an insulation layer between the inner barrel and the air supply section. The corresponding thickness range is set according to the material of the insulation layer, which not only ensures the cooling speed but also avoids the local temperature being too low.

[0035] Furthermore, the fresh-keeping storage container and refrigerator of the present application combine magnetic field preservation technology with high-precision and high-stability refrigeration technology, which greatly improves the preservation effect and extends the fresh-keeping storage time.

[0036] Based on the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application.

[0037] As used herein, the term "comprise" and variations of the term, such as "comprises," "comprised," "comprising," "including," and "containing" do not exclude other features, components, elements, or steps unless the context clearly requires otherwise. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Hereinafter, some specific embodiments of the present application will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the 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 drawings:

[0039] FIG1 is a schematic diagram of a refrigerator according to one embodiment of the present application;

[0040] FIG2 is a schematic diagram of the refrigerator shown in FIG1 with the upper door hidden;

[0041] FIG3 is a schematic diagram of an air path for supplying refrigerated air to a fresh-keeping storage container by a refrigerator according to one embodiment of the present application;

[0042] FIG4 is a front view of a fresh-keeping storage container according to one embodiment of the present application;

[0043] FIG5 is a schematic diagram of a fresh-keeping storage container according to an embodiment of the present application from another angle;

[0044] FIG6 is a schematic diagram of a fresh-keeping storage container according to an embodiment of the present application from another angle;

[0045] FIG7 is a cross-sectional view of the fresh-keeping storage container shown in FIG4 along the AA direction;

[0046] FIG8 is a partial enlarged view of point C in FIG7;

[0047] FIG9 is a cross-sectional view taken along the BB direction in FIG4;

[0048] FIG10 is a schematic diagram of a magnetic field device in a fresh-keeping storage container according to one embodiment of the present application; and

[0049] FIG. 11 is an exploded view of the magnetic field device shown in FIG. 10 . DETAILED DESCRIPTION

[0050] 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, rather than all the embodiments of the present application, and that these embodiments are intended to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should still fall within the scope of protection of the present application.

[0051] In the description of this embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. For example, except for individual explicit definitions of other directions, in this embodiment, the direction from the refrigerator body toward the door body is front, the direction relative to the door body toward the body is back, the direction toward the ground on which the refrigerator is installed is down, and the direction opposite to the ground is up.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0053] Furthermore, it should be noted that, in the description of this application, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0054] Figure 1 is a schematic diagram of a refrigerator 10 according to an embodiment of the present application; Figure 2 is a schematic diagram of the refrigerator 10 shown in Figure 1 with the upper door 11 hidden. The refrigerator of this embodiment may generally include a cabinet 12, a door 11, and a refrigeration system (not shown in the figure). The cabinet 12 may be defined with at least one storage compartment open at the front, usually multiple, such as a refrigerated storage compartment 121, a frozen storage compartment, a variable temperature storage compartment, and the like. The number and function of the specific storage compartments can be configured according to pre-determined requirements. The cross-door refrigerators shown in Figures 1 and 2 are only examples, and those skilled in the art can configure the number, function, and layout of the specific storage compartments according to their needs.

[0055] The refrigerator 10 of this embodiment can be an air-cooled refrigerator. Figure 3 is a schematic diagram of the air duct supplying refrigerated air to the fresh-keeping storage container 30 from the refrigerator 10 according to one embodiment of the present application. In order to illustrate the refrigeration duct assembly 210, other components of the refrigerated storage compartment 121, such as the refrigerated liner and compartment insulation layer, are omitted in Figure 3, except for the fresh-keeping storage container and the refrigeration duct assembly 210. An air duct system is provided within the cabinet. A fan 131 is used to direct the refrigerated air, which has been heat-exchanged in a heat exchanger (evaporator, not shown), through the supply air outlet to the storage compartment, and then back to the air duct through the return air outlet, thereby achieving refrigeration. Since the cabinet, door, and refrigeration system of this type of refrigerator are well known and easily implemented by those skilled in the art, the cabinet, door, and refrigeration system will not be described in detail below to avoid obscuring or obscuring the improvements of this application.

[0056] The multiple storage compartments can be spatially divided by racks, shelves, drawers, etc. to achieve corresponding storage functions, such as chilled, frozen, dry storage, etc. One or more fresh-keeping storage containers 30 can be arranged in the refrigerator 10 of this embodiment. In some optional embodiments, the fresh-keeping storage container 30 can be set in one or more of the above-mentioned multiple storage compartments, and through magnetic field and temperature control, long-term high-quality cold preservation of ingredients such as meat and fish can be achieved. For example, the fresh-keeping storage container 30 can be arranged in any one of the refrigerated storage compartment 121, the frozen storage compartment, and the variable temperature storage compartment. For another example, multiple fresh-keeping storage containers 30 can be placed in a storage compartment at the same time as needed. Figure 2 shows an example of arranging a fresh-keeping storage container 30 in the refrigerated storage compartment 121. The fresh-keeping storage container 30 can be a drawer-type storage container. In addition to the fresh-keeping storage container 30, other drawer-type storage containers 122 can also be set in the refrigerated storage compartment 121. For example, Figure 2 shows that in addition to the fresh-keeping storage container 30, the refrigerated storage compartment 121 is also provided with an example of three other drawer-type storage containers 122, one of which is arranged horizontally parallel to the fresh-keeping storage container 30.

[0057] The refrigerator 10 of this embodiment achieves fresh-keeping storage through precise temperature control of the fresh-keeping storage container 30 combined with the influence of a magnetic field. To achieve precise temperature control, the refrigerator's air duct system of this embodiment provides a dedicated fresh-keeping container air supply channel 211 for the fresh-keeping storage container 30. By adjusting this fresh-keeping container air supply channel 211, the on / off and / or volume of the cooling airflow to the fresh-keeping storage container 30 can be controlled.

[0058] The refrigerator 10 can be an air-cooled refrigerator, and an air duct assembly is provided at the rear of the housing 12. The air duct assembly is used to define an air supply duct that provides a refrigerated air flow. In some optional embodiments, a refrigerated air duct assembly 210 is provided at the back of the refrigerated storage compartment 121. A refrigerated air supply blower 212 is provided in the refrigerated air duct assembly 210. The refrigerated air supply blower 212 promotes the formation of a refrigerated air flow that blows from the evaporator cavity of the refrigerator 10, where the evaporator is located, to the storage compartment through the air supply duct. The fresh-keeping container air supply channel 211 is one of the multiple air supply channels provided in the refrigerated air duct assembly 210, and the on-off and / or size of the air flow can be controlled and adjusted. For example, an independent adjustable damper can be provided in the fresh-keeping container air supply channel 211; for another example, the refrigerated air duct assembly 210 is provided with other types of air flow distribution devices, which can control and adjust the air flow of the fresh-keeping container air supply channel 211.

[0059] The refrigeration air supply fan 212 draws low-temperature air from the evaporation chamber from the rear, and then distributes the refrigeration air flow using an air flow distribution device (not shown in the figure), wherein the fresh-keeping container air supply channel 211 can be controlled to adjust the opening and size.

[0060] Figure 4 is a front view of a fresh-keeping storage container 30 according to one embodiment of the present application. Figure 5 is a schematic diagram of the fresh-keeping storage container 30 from another angle according to one embodiment of the present application. Figure 6 is a schematic diagram of the fresh-keeping storage container 30 from yet another angle according to one embodiment of the present application. Figure 7 is a cross-sectional view of the fresh-keeping storage container shown in Figure 4 along line AA; Figure 8 is a partial enlarged view of point C in Figure 7; and Figure 9 is a cross-sectional view of Figure 4 along line BB.

[0061] The fresh-keeping storage container 30 may be a drawer-style structure. It may include a barrel body 310 and a drawer 320. The barrel body 310 is generally box-shaped and has a forward opening. Specifically, the barrel body 310 includes a top wall 311, a bottom wall 312, a rear wall 313, a left side wall 314, and a right side wall 315. The drawer 320 is retractably disposed within the barrel body 310 through the forward opening. The drawer 320 includes a drawer bottom panel 322, a rear panel 323, a left side panel, a right side panel, and a drawer end panel assembly 321, with the drawer end panel assembly 321 disposed at the front of the drawer 320. When the drawer 320 is placed within the barrel body 310, the drawer end panel assembly 321 seals the forward opening of the barrel body 310, creating a closed storage environment within the barrel body 310. Thus, the drawer 320 and the barrel body 310 together define a fresh-keeping storage space 330. When the drawer 320 is pulled out of the barrel body 310, the drawer 320 reveals the space at the top for taking out and placing stored items.

[0062] In some embodiments, the barrel body 310 may include an inner barrel body 318. The barrel body 310 may further include an outer barrel shell 3101 outside the inner barrel body 318, which serves as the outermost layer of the fresh-keeping storage container 30. In some embodiments, the outer barrel shell 3101 may not be provided on some sidewalls of the inner barrel body 318, and other insulation, injection-molded components, or adjacent components within the refrigerator may serve as the outermost layer of the fresh-keeping storage container 30. The inner barrel body 318 defines a fresh-keeping storage space 330 for storing items. In a drawer-style configuration, the inner barrel body 318 and the drawer 320 may define the fresh-keeping storage space 330. The inner barrel body 318 may be formed by multiple liner components joined together through snap-fitting or other connection methods. For example, the liner components can be split into three or four liner components for ease of assembly. The inner barrel body 318 serves as the inner layer of the barrel body, housing the drawer 320.

[0063] In embodiments where the outer tub shell 3101 is provided, a mezzanine space may be formed between the outer tub shell 3101 and at least one sidewall of the inner tub body 318. In other words, there may be a gap between the outer tub shell 3101 and the inner tub body 318. For example, the top tub body wall 311, the bottom tub body wall 312, the rear tub body wall 313, the left tub body wall 314, and the right tub body wall 315 may each form a mezzanine space.

[0064] The first magnetic field assembly 411 is disposed on the outside of a sidewall of the inner barrel 318. A supply / return air duct for the passage of refrigerated air is formed between the first magnetic field assembly 411 and the sidewall of the inner barrel 318. The supply / return air duct can be at least a portion of the internal air duct of the fresh-keeping storage container 30. It can be a supply air duct that communicates with the air inlet to introduce refrigerated air, a return air duct that communicates with the return air outlet to discharge air, or a transitional air duct located between the supply air duct and the return air duct.

[0065] The first magnetic field assembly 411 is disposed on the outside of a side wall of the inner barrel body 318. For example, the first magnetic field assembly 411 can be disposed on the barrel body top wall 311 or the barrel body bottom wall 312, that is, disposed above the top wall of the inner barrel body 318 or below the bottom wall of the inner barrel body 318. For another example, the first magnetic field assembly 411 can also be disposed on the barrel body left side wall 314 or the barrel body right side wall 315. Figures 4 to 9 show an embodiment in which the first magnetic field assembly 411 is disposed on the barrel body top wall 311. Those skilled in the art can, based on the structural characteristics of the fresh-keeping storage container 30, dispose the first magnetic field assembly 411 on the barrel body top wall 311, the barrel body bottom wall 312, the barrel body left side wall 314, or the barrel body right side wall 315.

[0066] A return air duct for the passage of refrigerated air is formed between the first magnetic field assembly 411 and the sidewall of the inner barrel. This return air duct is described as the air supply section 341 of the internal air path of the fresh-keeping storage container 30. The first magnetic field assembly 411 can form the air supply section 341 of the internal air path with the inner barrel 318, which is used to allow the refrigerated air from the fresh-keeping storage container 30 to pass through. If the first magnetic field assembly 411 is disposed on the barrel top wall 311, the first magnetic field assembly 411 is positioned above the top wall of the inner barrel 318. The return air duct communicates with the fresh-keeping container air supply channel that provides refrigerated air to the fresh-keeping storage container 30, and serves as the air supply section 341 for introducing refrigerated air. The air supply section 341 can be set below the first magnetic field component 411; when the first magnetic field component 411 is set on the bottom wall 312 of the barrel body, the air supply section 341 can be set above the first magnetic field component 411; when the first magnetic field component 411 is set on the left side wall 314 of the barrel body, the air supply section 341 can be set on the right side of the first magnetic field component 411; when the first magnetic field component 411 is set on the right side wall 315 of the barrel body, the air supply section 341 can be set on the left side of the first magnetic field component 411.

[0067] In the relative positions of the first magnetic field assembly 411 and the air supply section 341, the air supply section 341 is closer to the inner barrel 318. During the refrigeration process, the fresh-keeping storage space 330 can be cooled more quickly, thereby accelerating the cooling rate, reducing the effective time for bacterial reproduction, and thus extending the shelf life. If the first magnetic field assembly 411 generates heat during the magnetic field generation process, the airflow passing through the air supply section 341 can also carry away the heat of the first magnetic field assembly 411, reducing the impact of the heat generated by the first magnetic field assembly 411 on the temperature distribution of the fresh-keeping storage space 330.

[0068] In some embodiments of the present application, a barrel air outlet 316 is provided at the rear portion of the top wall of the barrel body 310. The barrel air outlet 316 can be used to communicate with the fresh-keeping container air supply channel 211 for supplying air to the fresh-keeping storage container. The first magnetic field assembly 411 is provided on the barrel body top wall 311, and the air supply section 341 is provided below the first magnetic field assembly 411 and communicates with the barrel air outlet 316.

[0069] The barrel air supply port 316 is provided at the rear of the barrel top wall 311 near the barrel rear wall 313. The area of ​​the barrel top wall 311 where the barrel air supply port 316 is located can be set to have a certain inclination angle so as to cooperate with the fresh-keeping container air supply channel 211. The barrel return air port 317 is provided on one lateral side of the barrel air supply port 316 and is spaced apart from the barrel air supply port 316. The barrel return air port 317 can be connected to the return air area of ​​the evaporator chamber. The airflow after heat exchange in the fresh-keeping storage container is sent back to the evaporator chamber through the barrel return air port 317. In some embodiments, the refrigerator can also be provided with a fresh-keeping container return air channel 213 connected to the barrel return air port 317 to directly send the airflow after heat exchange in the fresh-keeping storage container 30 back to the evaporation chamber.

[0070] The fresh-keeping storage container 30 may further include an air duct member 3111. The air duct member 3111 is disposed between the first magnetic field assembly 411 and the sidewall of the inner barrel 318. The air duct member 3111 is configured to define a supply and return air duct. In embodiments where the first magnetic field assembly 411 is disposed on the barrel top wall 311, the air duct member 3111 is disposed below the first magnetic field assembly 411 and is configured to define a supply and return air duct (e.g., the supply section 341). The air duct member 3111 may be a plastic air duct tube or a foam member with air duct grooves.

[0071] In some embodiments, the air duct member 3111 is provided with at least one diverter rib 3112, 3113, 3114 in the supply and return air duct, and the diverter ribs 3112, 3113, 3114 are used to further divide the refrigeration airflow into multiple streams, so that the airflow flows evenly through the top wall 311 of the barrel body, ensuring that the temperature of the top space of the fresh-keeping storage container 30 is uniform.

[0072] The air supply section 341 can be an air duct that gradually widens from the front to the back along the air supply direction, extending from the barrel air supply opening 316. That is, the lateral width of the rear end of the air supply section 341 is substantially the same as that of the barrel air supply opening 316, while the lateral width of the front end of the air supply section 341 is only slightly less than the overall width of the storage container 30. The lateral sides of the air supply section 341 form a continuous, smooth air guide surface.

[0073] The rear ends of one or more diverter ribs 3112, 3113, and 3114 face the barrel air outlet 316 and extend along the overall shape of the air supply section 341. The openings of the airflow channels facing the barrel air outlet 316 are configured to vary in size based on the airflow rate. For example, the central airflow channel directly facing the barrel air outlet 316 is narrower, while the airflow channels near the sides are wider. By adjusting the size of the entrances to these different airflow channels, the airflow within each channel can be adjusted. Furthermore, the extension length and direction of the diverter ribs 3112, 3113, and 3114 can also be adjusted based on airflow distribution needs.

[0074] Figure 9 illustrates an embodiment in which three diverter ribs 3112, 3113, and 3114 are provided. Those skilled in the art can adjust the number and direction of the diverter ribs as needed to ensure uniform cooling airflow through the top wall of the barrel. Of the three diverter ribs 3112, 3113, and 3114, the central diverter rib 3112, directly facing the barrel air outlet 316, has the longest length toward the barrel air outlet 316. This first divides the airflow into two left and right streams, and then the two diverter ribs 3113 and 3114 on either side further divide the airflow. In other words, one end of each of the first, second, and third diverter ribs 3112, 3113, and 3114 faces the barrel air outlet 316 and extends toward the drawer end panel assembly 321 (from back to front). The first diverter rib 3112 faces the barrel air outlet 316, while the second and third diverter ribs 3113 and 3114 are located on either side of the first diverter rib 3112. The end of the first diverter rib 3112 facing the barrel air outlet 316 is closer to the barrel air outlet 316 than the ends of the second diverter rib 3113 and the third diverter rib 3114 facing the barrel air outlet 316. That is, the cooling airflow is first diverted by the first diverter rib 3112 and then further diverted by the second diverter rib 3113 and the third diverter rib 3114.

[0075] The refrigerated airflow supplied from the evaporator chamber of refrigerator 10 is typically relatively low, potentially below -10°C (ranging from -10°C to -25°C). Direct contact of the refrigerated airflow with the stored items can obviously cause them to overcool, resulting in freezing or tissue damage, thus compromising their freshness preservation. A prerequisite for long-term fresh-keeping storage in fresh-keeping storage container 30 is maintaining the temperature within fresh-keeping storage space 330 within a set fresh-keeping temperature range, ensuring that the refrigeration process does not exceed either low or high temperatures, and, in particular, ensuring uniform temperature distribution across all areas of fresh-keeping storage space 330.

[0076] In order to prevent the temperature of the fresh-keeping storage space 330 near the return air duct from being too low, the duct member 3111 may further be provided with an insulation layer 3102 between the return air duct and the inner barrel body 318. In an embodiment in which the first magnetic field component 411 is arranged on the top wall 311 of the barrel body, the insulation layer 3102 is arranged below the supply air section 341.

[0077] Insulation layer 3102 can be made of insulating foam material with a thickness ranging from 5 to 10 mm. Alternatively, insulation layer 3102 can be made of a vacuum insulation panel with a thickness ranging from 2 to 5 mm. Setting a thickness range based on the insulation layer material can ensure a rapid cooling rate while preventing localized low temperatures. In other embodiments, if the cooling airflow is at a higher temperature (e.g., above -7°C), PE or an air layer can also be used as insulation layer 3102.

[0078] Alternatively, the insulation layer 3102 may be replaced with a cold storage component. A cold storage component is provided between the return air duct and the sidewall of the inner barrel 318. The cold storage component can store cold energy when the return air duct is ventilating, and release the cold energy to the fresh food storage space 330 through the sidewall of the inner barrel 318 when the return air duct stops ventilating.

[0079] The return air duct is close to the side wall of the inner barrel body 318, which can make the cooling speed of the inner barrel body 318 faster. The use of the cold storage component can better reduce the temperature fluctuation in the fresh-keeping storage space 330. When the refrigeration is stopped, the temperature inside the fresh-keeping storage container 30 rises more slowly and the temperature is more stable.

[0080] The cooperation between the above-mentioned return air duct, the inner barrel body 318 and the cold storage material can make the temperature more in line with the temperature conditions for fresh-keeping storage.

[0081] The arrows in Figure 7 indicate the direction of airflow within the fresh-keeping storage container 30. The internal airflow path of the fresh-keeping storage container 30 is configured as follows: air flows from the air supply port 316 of the container body into the rear end of the air supply section 341 (also referred to as the air supply section), defined within the top wall of the container body. The air then flows from back to front through the air supply section 341. At the front end of the air supply section 341, the air enters the top end of the air flow section (also referred to as the end plate air flow section), defined within the drawer end panel assembly 321. The air then flows from top to bottom through the air flow section 342. At the bottom end of the air flow section 342, the air enters the gap between the drawer bottom panel 322 and the bottom wall 312 of the container body. This gap serves as the cooling section (also referred to as the bottom wall air flow section) of the fresh-keeping storage container 30's internal airflow path. The air then flows from front to back through the first cooling section 343. At the junction of the rear end of the drawer bottom plate 322 and the drawer rear plate 323 (i.e., the rear end of the cooling section 343), air flows into the gap between the drawer rear plate 322 and the barrel rear wall 313. This gap serves as the internal return air section 344 (also known as the rear wall air path section). An internal return air vent 346 is located in the center of the barrel rear wall 313, and an inter-barrel return air section 345 is formed on the barrel rear wall, extending from the internal return air vent 346 to the barrel return air vent 317. The air ultimately flows from the internal return air vent 346 through the inter-barrel return air section 345 to the barrel return air vent 317. In other words, the drawer end plate assembly 321 defines an internal air path, the air flow section 342, which is connected to the air supply section 341. A cooling section 343, connected to the air flow section 342, is formed between the bottom of the drawer 320 and the inner barrel 318.

[0082] The internal air path of the above-mentioned fresh-keeping storage container 30 surrounds the entire fresh-keeping storage container 30. Without entering the fresh-keeping storage space 330 and thus not directly contacting the stored items, sufficient heat exchange can be achieved to evenly cool the fresh-keeping storage container 30.

[0083] In other optional embodiments, the internal air path of the fresh-keeping storage container 30 can also adopt other surrounding methods, such as from the left side to the front, from the front of the drawer to the right, and then from the right side back to the back, that is, surrounding the fresh-keeping storage container 30 in a horizontal direction. In comparison, the internal air path surrounding the fresh-keeping storage container 30 in a longitudinal direction has a better cooling effect.

[0084] Another prerequisite for long-term fresh-keeping storage in the fresh-keeping storage container 30 is the application of a fresh-keeping magnetic field within the fresh-keeping storage space 330. After in-depth research on the preservation effect, the magnetic field parameters of the fresh-keeping storage container 30 of this embodiment are preferably configured to have an effective magnetic field strength range of 10-100 GS (1-10 mT), further adjustable to 20-80 GS, and even further adjustable to 40-60 GS, such as 10 GS, 20 GS, 40 GS, 60 GS, 80 GS, 100 GS, etc. The effective magnetic field spacing range is 60-240 mm. This means that the magnetic field can achieve the above strength requirements within a distance range of 60 mm to 240 mm from the magnetic source component.

[0085] Figure 10 is a schematic diagram of a magnetic field device 410 in a fresh-keeping storage container 30 according to one embodiment of the present application, and Figure 11 is an exploded view of the components of the magnetic field device 410 shown in Figure 10. The magnetic field device 410 may include a first magnetic field assembly 411 and a second magnetic field assembly 421 disposed opposite each other. In some embodiments, a magnetic field connector 431 may be further provided to connect the first magnetic field assembly 411 and the second magnetic field assembly 421.

[0086] The first magnetic field assembly 411 and the second magnetic field assembly 421 are disposed opposite each other and can be disposed on opposite sides of the barrel body 310 of the fresh-keeping storage container 30, for example, on the barrel body top wall 311 and the barrel body bottom wall 312, or on the barrel body left wall 314 and the barrel body right wall 315. In an embodiment in which the fresh-keeping storage container 30 uses a drawer-type structure, the distance between the barrel body top wall 311 and the barrel body bottom wall 312 is smaller and the area is larger, and the first magnetic field assembly 411 and the second magnetic field assembly 421 are preferably disposed on the barrel body top wall 311 and the barrel body bottom wall 312.

[0087] The first magnetic field assembly 411 and the second magnetic field assembly 421 can employ substantially the same structure. For example, the first magnetic field assembly 411 can include a first magnetic source sheet 414 and a first magnetic conductive plate 413. In some embodiments, the first magnetic field assembly 411 can further include a first electromagnetic coil 415. Correspondingly, the second magnetic field assembly 421 can include a second magnetic source sheet 424 and a second magnetic conductive plate 423. In some embodiments, the second magnetic field assembly 421 can also include a second electromagnetic coil 425. The first magnetic conductive plate 413 can be disposed on the inside of the barrel shell 3101, with the first magnetic source sheet 414 abutting against the inside of the first magnetic conductive plate 413. In other words, the inside of the barrel shell 3101 can be provided with a fixed mounting structure for the first magnetic field assembly 411, with the first magnetic conductive plate 413 cooperating with the fixed mounting structure. The first magnetic source sheet 414 abuts against the inside of the first magnetic conductive plate 413, opposite the air duct member 3111.

[0088] The first magnetic source sheet 414 and the second magnetic source sheet 424 can be uniformly magnetized permanent magnets. To facilitate coordination with the first magnetic conductive plate 413 and the second magnetic conductive plate 423, the permanent magnets can be made of a relatively flexible permanent magnetic material. For example, a flexible rubber magnet made by calendering a composite of bonded ferrite powder and synthetic rubber can be used. The first magnetic conductive plate 413 and the second magnetic conductive plate 423 are made of a material with low coercivity and high magnetic permeability.

[0089] The first magnetic field assembly 411 and the second magnetic field assembly 421 can respectively cover corresponding sides of the fresh-keeping storage space 330. In an embodiment where the first magnetic field assembly 411 and the second magnetic field assembly 421 are respectively disposed on the top and bottom surfaces of the fresh-keeping storage container 30, the first magnetic field assembly 411 can cover the top surface of the fresh-keeping storage space 330, while the second magnetic field assembly 421 can cover the bottom surface of the fresh-keeping storage space 330. The magnetic field directions of the first magnetic source piece 414 and the second magnetic source piece 424 can be set to be the same, that is, the opposing magnetic poles of the first magnetic source piece 414 and the second magnetic source piece 424 are opposite magnetic poles, which can further ensure the uniformity of the magnetic field.

[0090] The magnetic field connector 431 magnetically connects the first magnetic field assembly 411 and the second magnetic field assembly 421 from both sides. The magnetic field connector 431 can be made of the same material as the first magnetic conductive plate 413 and the second magnetic conductive plate 423. In the embodiment where the first magnetic field assembly 411 and the second magnetic field assembly 421 are respectively arranged on the top and bottom surfaces of the fresh-keeping storage container 30, the magnetic field connector 431 can be respectively arranged on the left and right sides of the fresh-keeping storage container 30, with its top connected to the first magnetic field assembly 411 and its bottom connected to the second magnetic field assembly 421. The first magnetic field assembly 411, the second magnetic field assembly 421, and the magnetic field connectors 431 on both sides form an outer magnetic conductive path surrounding the fresh-keeping storage space 330, while the fresh-keeping storage space 330 between the first magnetic field assembly 411 and the second magnetic field assembly 421 forms an internal magnetic field. The outer magnetic conductive path provides a closed path for the magnetic lines of force of the internal magnetic field, thereby concentrating the magnetic field and improving the uniformity of the internal magnetic field. At the same time, it can reduce the release of the magnetic field to the outside of the fresh-keeping storage container 30 and reduce interference with other external components (for example, avoiding magnetization of other components).

[0091] The first electromagnetic coil 415 and the second electromagnetic coil 425 can be located at the center of the first magnetic source sheet 414 and the second magnetic source sheet 424, respectively. When energized, the magnetic poles of the magnetic field formed are aligned with the first magnetic source sheet 414 and the second magnetic source sheet 424. The heat generated by the first electromagnetic coil 415 and the second electromagnetic coil 425 during operation can be carried away by the cooling airflow, thereby preventing the heat from affecting the freshness of stored food.

[0092] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present application have been shown and described in detail herein, many other variations or modifications that are consistent with the principles of the present application can be directly determined or derived from the contents disclosed herein without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and deemed to cover all such other variations or modifications.

Claims

1. A fresh-keeping storage container, comprising: The inner barrel body has a fresh-keeping storage space for storing stored items; The first magnetic field component is arranged on the outer side of the side wall of the inner barrel body; and a return air duct for the passage of refrigeration airflow is formed between the first magnetic field component and the side wall of the inner barrel body.

2. The fresh-keeping storage container according to claim 1, further comprising: The air duct member is disposed between the first magnetic field assembly and the side wall of the inner barrel body and is configured to define the return air duct.

3. The fresh-keeping storage container according to claim 2, wherein The air duct member is provided with a heat-insulating layer between the return air duct and the side wall of the inner barrel body.

4. The fresh-keeping storage container according to claim 3, characterized in that The insulation layer is made of insulation foam material, and its thickness ranges from 5 to 10 mm; or The thermal insulation layer is made of a vacuum insulation panel and has a thickness ranging from 2 to 5 mm.

5. The fresh-keeping storage container according to claim 2, wherein A cold storage component is arranged between the supply and return air duct and the side wall of the inner barrel body. The cold storage component stores cold energy when the supply and return air duct is ventilated, and releases cold energy to the fresh-keeping storage space through the side wall of the inner barrel body when the supply and return air duct stops ventilating.

6. The fresh-keeping storage container according to claim 2, wherein The duct member is provided with at least one diverter rib in the supply-return air duct, and the diverter rib is used to divide the air flowing through the supply-return air duct into a plurality of air flow channels, and is configured so that the air flow flowing through each of the air flow channels is substantially the same.

7. The fresh-keeping storage container according to claim 2, wherein The air duct member is made of heat-insulating foam material.

8. The fresh-keeping storage container according to claim 2, further comprising: The outer barrel shell is arranged on the outer side of the inner barrel body, and a sandwich space may be provided between the outer barrel shell and at least one side wall of the inner barrel body. The first magnetic field component and the air duct component are both arranged in the interlayer space.

9. The fresh-keeping storage container according to any one of claims 3 to 8, wherein the first magnetic field component comprises: A first magnetic conductive plate is arranged on the inner side of the side wall of the barrel shell; The first magnetic source sheet is attached to the inner side of the first magnetic conductive plate and is opposite to the air duct member.

10. The fresh-keeping storage container according to claim 1, wherein The first magnetic field component is arranged above the top wall of the inner barrel body, and the supply and return air duct is connected to the fresh-keeping container air supply channel that provides refrigerated airflow to the fresh-keeping storage container, and serves as an air supply section for introducing the refrigerated airflow.

11. The fresh-keeping storage container according to claim 10, wherein The inner barrel has a forward opening; and the fresh-keeping storage container further comprises: A drawer is pullable and arranged in the inner barrel body, and the drawer includes a drawer end plate assembly, which seals the forward opening when the drawer is placed in the inner barrel body, and an air flow section is defined in the drawer end plate assembly, and the air flow section is connected to the air supply section; a cooling section connected to the air flow section is formed between the bottom of the drawer and the inner barrel body.

12. The fresh-keeping storage container according to claim 10, further comprising: The second magnetic field component is arranged on the outer side of the side wall of the inner barrel away from the first magnetic field component, so as to be arranged opposite to the first magnetic field component, so that the fresh-keeping storage space is located between the first magnetic field component and the second magnetic field component.

13. The fresh-keeping storage container according to claim 12, further comprising: The magnetic field connector magnetically connects the first magnetic field component and the second magnetic field component from both sides, so that the first magnetic field component, the second magnetic field component and the magnetic field connectors on both sides form a magnetic conductive path surrounding the outside of the fresh-keeping storage space.

14. The fresh-keeping storage container according to claim 12, wherein The first magnetic field component cooperates with the second magnetic field component to form a magnetic field in the fresh-keeping storage space. The effective magnetic field strength range of the magnetic field is 10-100 GS, and the effective magnetic field spacing range is 60-240 mm.

15. A refrigerator, comprising: A fresh-keeping storage container according to any one of claims 1 to 14.

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