Fresh-keeping storage container and refrigerator

Abstract

The invention provides a fresh-keeping storage container and a refrigerator. The fresh-keeping storage container comprises an inner barrel body and an outer barrel body, wherein the inner barrel body is internally provided with a fresh-keeping storage space for placing stored objects; the first magnetic field assembly is arranged on the outer side of the side wall of one side of the inner barrel body; an air supply and return channel for refrigeration airflow to pass through is formed between the first magnetic field assembly and the side wall of the inner barrel body. According to the scheme, the air supply and return duct is arranged between the first magnetic field assembly and the inner barrel body, so that refrigeration airflow is closer to the fresh-keeping storage space, the fresh-keeping storage space can be refrigerated more quickly in the refrigeration process, the cooling speed is increased, the effective time for bacterial reproduction is shortened, and the fresh-keeping period is prolonged.

Description

Technical Field

[0001] The invention relates to a refrigeration and freezing storage device, in particular to a fresh-keeping storage container and a refrigerator. Background Art

[0002] The fresh-keeping storage effect of household refrigeration and freezing equipment such as refrigerators has become an important indicator for measuring the performance of such equipment. Ingredients such as fresh meat, fish and shrimp are prone to juice loss during storage, resulting in poor taste and darker color.

[0003] Existing studies have found that magnetic fields have a significant impact on the formation of ice crystals during the freezing process. Technicians have also tried to apply magnetic field preservation technology in household refrigeration and freezing equipment, but the technical results achieved are not satisfactory. An important reason for the poor results is that the magnetic field device will affect the refrigeration process. On the one hand, the magnetic field device will affect the refrigeration of the storage space; on the other hand, when using the magnetic field element of the electromagnetic coil, the electromagnetic coil will also heat up, causing large fluctuations in the refrigeration temperature. Summary of the invention

[0004] An object of the present invention is to provide a fresh-keeping storage container and a refrigerator that can improve the refrigeration speed of the storage space.

[0005] A further object of the present invention is to prevent the electromagnetic coil from causing temperature fluctuations in the storage space.

[0006] In particular, the present invention provides a fresh-keeping storage container, which comprises:

[0007] The inner barrel body has a fresh-keeping storage space for storing stored items;

[0008] The first magnetic field component is arranged on the outer side of the side wall of one side 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.

[0009] Optionally, the fresh-keeping storage container further comprises:

[0010] 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.

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

[0012] The air duct member is provided with a heat-insulating layer between the supply and return air duct and the side wall of the inner barrel body.

[0013] Optionally, the insulation layer is made of insulation foam material with a thickness ranging from 5 to 10 mm; or

[0014] The insulation layer is made of vacuum insulation panels with a thickness ranging from 2 to 5 mm.

[0015] Optionally, a cold storage component is provided 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.

[0016] Optionally, 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 air flow channel is substantially the same.

[0017] Optionally, the duct member is made of a thermal insulation foam material.

[0018] Optionally, the above-mentioned fresh-keeping storage container also includes:

[0019] 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.

[0020] The first magnetic field component and the air duct component are both arranged in the interlayer space.

[0021] Optionally, the first magnetic field component includes:

[0022] A first magnetic conductive plate is arranged on the inner side of the side wall of the barrel shell;

[0023] 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.

[0024] 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.

[0025] Optionally, the inner barrel has a forward opening; and the fresh-keeping storage container further comprises:

[0026] A 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 drawer end plate assembly defines an air flow section, which 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.

[0027] Optionally, the fresh-keeping storage container further comprises:

[0028] 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.

[0029] Optionally, 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 10-100GS, and the effective magnetic field spacing range is 60-240mm.

[0030] According to another aspect of the present invention, a refrigerator is provided, comprising any one of the above-mentioned fresh-keeping storage containers.

[0031] In the fresh-keeping storage container and refrigerator of the present invention, 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.

[0032] 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 the refrigerator of the present invention 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 can not only ensure the cooling speed but also avoid the local temperature being too low.

[0033] Furthermore, the fresh-keeping storage container and refrigerator of the present invention combine the magnetic field fresh-keeping technology with the high-precision and high-stability refrigeration technology, which greatly improves the fresh-keeping effect and prolongs the fresh-keeping storage time.

[0034] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0036] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0037] Figure 2 yes Figure 1 The refrigerator shown is a schematic diagram with the upper door hidden;

[0038] Figure 3 is a schematic diagram of an air path for supplying refrigeration airflow to a fresh-keeping storage container by a refrigerator according to an embodiment of the present invention;

[0039] Figure 4 is a front view of a fresh-keeping storage container according to an embodiment of the present invention;

[0040] Figure 5 is a schematic diagram of a fresh-keeping storage container according to an embodiment of the present invention from another angle;

[0041] Figure 6 is a schematic diagram of a fresh-keeping storage container from another angle according to an embodiment of the present invention;

[0042] Figure 7 yes Figure 4 A cross-sectional view of the fresh-keeping storage container along the AA direction shown;

[0043] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle;

[0044] Fig. 9 yes Figure 4 Cross-sectional view along direction BB;

[0045] Fig.10 is a schematic diagram of a magnetic field device in a fresh-keeping storage container according to an embodiment of the present invention; and

[0046] Fig.11 yes Fig.10 An exploded view of the components of the magnetic field device is shown. DETAILED DESCRIPTION

[0047] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0048] In the description of the present embodiment, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For example, except for individual explicit definitions of other orientations, in the present embodiment, the direction from the refrigerator body toward the door body is the front, the direction relative to the door body toward the body is the back, the direction toward the ground on which the refrigerator is installed is the bottom, and the direction opposite to the ground is the top.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] Furthermore, it should be noted that, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Figure 1 is a schematic diagram of a refrigerator 10 according to an embodiment of the present invention; Figure 2 yes Figure 1 The refrigerator 10 shown is a schematic diagram after the upper door 11 is hidden. The refrigerator of this embodiment generally includes a box body 12, a door body 11, and a refrigeration system (not shown in the figure). The box body 12 may define at least one storage compartment with an open front side, usually multiple, such as a refrigerated storage compartment 121, a frozen storage compartment, a variable temperature storage compartment, etc. The number and function of the specific storage compartments can be configured according to pre-determined requirements. Figure 1 and Figure 2 The cross-door refrigerator shown is only an example, and those skilled in the art can configure the specific number, function and layout of the storage compartments according to needs.

[0052] The refrigerator 10 of this embodiment may be an air-cooled refrigerator. Figure 3 1 is a schematic diagram of an air path for supplying refrigeration airflow to a fresh-keeping storage container 30 by a refrigerator 10 according to an embodiment of the present invention. Figure 3 In order to show the refrigeration duct assembly 210, other components in the refrigeration storage compartment 121 except the fresh-keeping storage container and the refrigeration duct assembly 210 are hidden, such as the refrigeration liner, the compartment insulation layer, etc. An air duct system is arranged in the box body, and the refrigeration air flow that has been heat exchanged by the heat exchanger (evaporator, not shown in the figure) is sent to the storage compartment through the air supply port by the fan 131, and then returns to the air duct through the return air port. Refrigeration is achieved. Since the box body, door body, and refrigeration system of this type of refrigerator are well known to those skilled in the art and easy to implement, in order not to cover up and blur the improvement points of the present application, the box body, door body, and refrigeration system itself will not be described in detail later.

[0053] Multiple storage rooms 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 arranged in one or more of the above-mentioned multiple storage rooms, and the long-term high-quality cold preservation of food materials such as meat and fish can be achieved through magnetic field and temperature control. For example, the fresh-keeping storage container 30 can be arranged in any one of the refrigerated storage room 121, the frozen storage room, and the variable temperature storage room. For another example, multiple fresh-keeping storage containers 30 can also be placed in a storage room at the same time as needed. Figure 2 The example of setting a fresh-keeping storage container 30 in the refrigerated storage compartment 121 is shown. The fresh-keeping storage container 30 may be a drawer-type storage container. In addition to the fresh-keeping storage container 30, other drawer-type storage containers 122 may be set in the refrigerated storage compartment 121, such as Figure 2 In addition to the fresh-keeping storage container 30 , the refrigerated storage compartment 121 is also provided with three other examples of drawer-type storage containers 122 , one of which is arranged in parallel with the fresh-keeping storage container 30 .

[0054] The refrigerator 10 of this embodiment achieves the effect of fresh-keeping storage by combining the precise temperature control of the fresh-keeping storage container 30 with the influence of the magnetic field. In order to achieve precise temperature control, the air duct system of the refrigerator of this embodiment can provide a special fresh-keeping container air supply channel 211 for the fresh-keeping storage container 30. By adjusting the fresh-keeping container air supply channel 211, the on / off and / or size control of the refrigeration airflow of the fresh-keeping storage container 30 can be achieved.

[0055] The refrigerator 10 can be an air-cooled refrigerator, and an air duct assembly is provided at the rear of the box body 12, and the air duct assembly is used to define an air supply duct that provides a refrigerated airflow. 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 fan 212 is provided in the refrigerated air duct assembly 210, and the refrigerated air supply fan 212 promotes the formation of a refrigerated air flow from the evaporator cavity where the evaporator of the refrigerator 10 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 ducts provided by the refrigerated air duct assembly 210, and the on-off and / or size of its airflow 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, and the airflow of the fresh-keeping container air supply channel 211 can be controlled and adjusted.

[0056] The refrigerated air supply fan 212 inhales the low-temperature air in the evaporation chamber from the rear, and then distributes the refrigerated 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.

[0057] Figure 4 FIG. 4 is a front view of a fresh-keeping storage container 30 according to an embodiment of the present invention. Figure 5 FIG. 2 is a schematic diagram of a fresh-keeping storage container 30 according to an embodiment of the present invention from another angle. Figure 6 FIG. 4 is a schematic diagram of a fresh-keeping storage container 30 according to an embodiment of the present invention from another angle. Figure 7 yes Figure 4 A cross-sectional view of the fresh-keeping storage container along the AA direction shown; Figure 8 yes Figure 7 A partial enlarged view of point C in the middle. Fig. 9 yes Figure 4 Cross-sectional view along direction BB.

[0058] The fresh-keeping storage container 30 may be a drawer-type structure. The fresh-keeping storage container may include a barrel 310 and a drawer 320. The barrel 310 is box-shaped as a whole and has a forward opening, that is, the barrel 310 includes a barrel top wall 311, a barrel bottom wall 312, a barrel rear wall 313, a barrel left side wall 314, and a barrel right side wall 315. The drawer 320 is pullably arranged inside the barrel 310 through the forward opening. The drawer 320 includes a drawer bottom plate 322, a drawer rear plate 323, a drawer left side plate, a drawer right side plate, and a drawer end plate assembly 321, wherein the drawer end plate assembly 321 is arranged at the front of the drawer 320. When the drawer 320 is placed in the barrel 310, the drawer end plate assembly 321 can seal the forward opening of the barrel 310, so that a closed storage environment is formed inside the barrel 310, so that the drawer 320 and the barrel 310 jointly 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.

[0059] In some embodiments, the barrel 310 may include an inner barrel 318. The barrel 310 may further be provided with a barrel shell 3101 on the outer side of the inner barrel 318, and the barrel shell 3101 serves as the outermost layer of the fresh-keeping storage container 30. In some embodiments, the barrel shell 3101 may not be provided outside the side wall of part of the inner barrel 318, and other insulation parts or injection molding parts or adjacent components in the refrigerator may be used as the outermost layer of the fresh-keeping storage container 30. The inner barrel 318 has a fresh-keeping storage space 330 for placing stored objects. In the case of using a drawer-type structure, the inner barrel 318 and the drawer 320 may jointly define the fresh-keeping storage space 330. The inner barrel 318 may be formed by splicing a plurality of liner components by snap-fitting or other connection methods. For example, the liner components may be split into three to four liner components according to the convenience of assembly. The inner barrel 318 serves as the inner layer of the barrel in which the drawer 320 is arranged.

[0060] In the embodiment where the outer barrel shell 3101 is provided, there may be a sandwich space between the outer barrel shell 3101 and at least one side wall of the inner barrel body 318. That is, there is a gap between the outer barrel shell 3101 and the inner barrel body 318. For example, the barrel body top wall 311, the barrel body bottom wall 312, the barrel body rear wall 313, the barrel body left side wall 314, and the barrel body right side wall 315 may respectively form a sandwich space.

[0061] The first magnetic field component 411 is disposed on the outer side of the side wall of the inner barrel 318; and a return air duct for the passage of refrigeration airflow is formed between the first magnetic field component 411 and the side wall of the inner barrel 318. The return air duct may be at least a part of the internal air duct of the fresh-keeping storage container 30, which may be a supply air duct connected to the air inlet to introduce refrigeration airflow, or a return air duct connected to the return air outlet for sending out airflow, or a transition air duct located between the supply air duct and the return air duct.

[0062] The first magnetic field component 411 is arranged on the outer side of the side wall of the inner barrel body 318; for example, the first magnetic field component 411 can be arranged on the top wall 311 of the barrel body or on the bottom wall 312 of the barrel body, that is, it is arranged 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 component 411 can also be arranged on the left side wall 314 of the barrel body or the right side wall 315 of the barrel body. Figures 4 to 9 An embodiment in which the first magnetic field component 411 is arranged on the top wall 311 of the barrel body is shown. Those skilled in the art can arrange the first magnetic field component 411 in the top wall 311 of the barrel body, the bottom wall 312 of the barrel body, the left side wall 314 of the barrel body, and the right side wall 315 of the barrel body according to the structural characteristics of the fresh-keeping storage container 30.

[0063] A return air duct for the passage of refrigeration airflow is formed between the first magnetic field component 411 and the side wall of the inner barrel body, and the return air duct is taken as an example of the air supply section 341 of the internal air path of the fresh-keeping storage container 30. The first magnetic field component 411 can form an air supply section 341 of the internal air path with the inner barrel body 318, and the air supply section 341 is used to allow the refrigeration airflow of the fresh-keeping storage container 30 to pass. In the case where the first magnetic field component 411 is arranged on the barrel body top wall 311, the first magnetic field component 411 is arranged above the top wall of the inner barrel body 318, and the return air duct is connected to the fresh-keeping container air supply channel that provides refrigeration airflow to the fresh-keeping storage container 30, and serves as the air supply section 341 for introducing refrigeration airflow. 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.

[0064] In the relative position of the first magnetic field component 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 faster, thereby accelerating the cooling speed, reducing the effective time for bacteria to reproduce, and thus extending the fresh-keeping period. If the first magnetic field component 411 generates heat during the magnetic field generation process, the airflow flowing through the air supply section 341 can also take away the heat of the first magnetic field component 411, reducing the influence of the heat generated by the first magnetic field component 411 on the temperature distribution of the fresh-keeping storage space 330.

[0065] In some embodiments of the present invention, a barrel air outlet 316 is provided at the rear of the top wall of the barrel 310, and 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 component 411 is provided on the barrel top wall 311, and the air supply section 341 is provided below the first magnetic field component 411 and communicates with the barrel air outlet 316.

[0066] The barrel air supply port 316 is arranged 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 arranged on one lateral side of the barrel air supply port 316 and is arranged at intervals 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 of the fresh-keeping storage container after heat exchange 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, and the airflow of the fresh-keeping storage container 30 after heat exchange is directly sent back to the evaporation chamber.

[0067] 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 side wall of the inner barrel 318. The air duct member 3111 is configured to define a return air duct. In an embodiment 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 return air duct (e.g., the air supply section 341). The air duct member 3111 may be a plastic air duct tube or a foam member with an air duct groove.

[0068] In some embodiments, the 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.

[0069] The air supply section 341 may be an air duct that gradually widens from the barrel air supply port 316 to both sides along the air supply direction from the front to the back. That is, the lateral width of the rear end of the air supply section 341 is substantially the same as the barrel air supply port 316; the lateral width of the front end of the air supply section 341 is only slightly smaller than the overall width of the storage container 30. The lateral sides of the air supply section 341 form a continuous and gentle air guide surface.

[0070] The rear ends of one or more diverter ribs 3112, 3113, 3114 are respectively directed toward the barrel air outlet 316, and then extend according to the overall shape of the air supply section 341. The opening of the air flow channel toward the barrel air outlet 316 is configured to be of different sizes according to the air flow velocity. For example, the air flow channel near the center facing the barrel air outlet 316 is narrower, while the air flow channels near the two sides are wider. The air flow size in different air flow channels is adjusted by adjusting the size of the entrance of different air flow channels. In addition, the extension length and extension direction of the diverter ribs 3112, 3113, 3114 can also be allocated according to the air flow distribution needs.

[0071] Fig. 9The embodiment of setting three diverter ribs 3112, 3113, 3114 is shown in the figure. Those skilled in the art can adjust the number and extension direction of the diverter ribs as needed to ensure that the refrigeration airflow can pass through the top wall of the barrel body evenly. The diverter rib 3112 in the center facing the barrel body air outlet 316 of the three diverter ribs 3112, 3113, 3114 has the longest length toward the barrel body air outlet 316. The airflow is first divided into two airflows on the left and right, and then the two diverter ribs 3113, 3114 on both sides are used to further divert the airflow. That is to say, one end of each of the first diverter rib 3112, the second diverter rib 3113, and the third diverter rib 3114 is respectively facing the barrel body air outlet 316, and respectively extends in the direction of the drawer end plate assembly 321 (from back to front). The first diverter rib 3112 is directly opposite to the barrel body air outlet 316, and the second diverter rib 3113 and the third diverter rib 3114 are respectively located on the lateral sides 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.

[0072] The temperature of the refrigeration airflow supplied from the evaporator chamber of the refrigerator 10 is generally low, which may be below minus ten degrees Celsius (can be -10°C to -25°C). The refrigeration airflow directly contacts the stored objects, which will obviously cause the stored objects to be overcooled and freeze or have their tissues damaged, affecting the fresh-keeping storage effect. A necessary condition for the fresh-keeping storage container 30 to achieve long-term fresh-keeping storage is to maintain the temperature in the fresh-keeping storage space 330 within the set fresh-keeping temperature range, and the refrigeration process will not be too low or too high, especially the temperature of each area of ​​the fresh-keeping storage space 330 is uniform.

[0073] 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 the 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.

[0074] The insulation layer 3102 can be made of insulation foam material, and its thickness ranges from 5 to 10 mm. For another example, the insulation layer 3102 is made of a vacuum insulation board, and its thickness ranges from 2 to 5 mm. According to the material of the insulation layer, the corresponding thickness range is set, which can ensure the cooling speed and avoid the local temperature from being too low. In other embodiments, if the temperature of the refrigeration airflow is relatively high (for example, above -7°C), PE or an air layer can also be selected as the insulation layer 3102.

[0075] Alternatively, the above-mentioned insulation layer 3102 can also be replaced by a cold storage component. A cold storage component is arranged between the return air duct and the side wall of the inner barrel 318, and the cold storage component can store cold energy when the return air duct is ventilated, and release cold energy to the fresh-keeping storage space 330 through the side wall of the inner barrel 318 when the return air duct stops ventilating.

[0076] The return air duct is close to the side wall of the inner barrel body 318, so that the cooling speed of the inner barrel body 318 can be 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.

[0077] The cooperation between the 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.

[0078] Figure 7 The arrow direction in is the internal airflow direction of the fresh-keeping storage container 30. The internal air path of the fresh-keeping storage container 30 is configured as follows: the airflow enters the rear end of the air supply section 341 (also referred to as the air supply section) of the internal air path of the fresh-keeping storage container 30 defined in the top wall of the barrel body from the barrel body air supply port 316, and then the airflow flows through the air supply section 341 from back to front. At the front end of the air supply section 341, the airflow enters the top of the wind section (also referred to as the end plate wind section) of the internal air path of the fresh-keeping storage container 30 defined in the drawer end plate assembly 321, and then the airflow flows from top to bottom through the wind section 342. At the bottom end of the wind section 342, the airflow enters the gap between the drawer bottom plate 322 and the barrel body bottom wall 312, which serves as the cold transfer section (also referred to as the bottom wall wind section) of the internal air path of the fresh-keeping storage container 30, and then the airflow flows from front to back through the first cold transfer section 343. At the connection position between the rear end of the drawer bottom plate 322 and the drawer rear plate 323 (i.e., the rear end of the cold transmission section 343), the airflow enters the gap between the drawer rear plate 322 and the barrel body rear wall 313, which can be used as the barrel return air section 344 (also called the rear wall air path section). The middle part of the barrel body rear wall 313 is provided with an inner barrel body return air port 346, and the barrel body rear wall forms an inter-barrel return air section 345 from the inner barrel body return air port 346 to the barrel body return air port 317. The airflow eventually reaches the barrel body return air port 317 from the inner barrel body return air port 346 via the inter-barrel return air section 345. That is to say, the wind section 342 of the internal air path defined in the drawer end plate assembly 321 is connected to the air supply section 341; the cold transmission section 343 connected to the wind section 342 is formed between the lower part of the drawer 320 and the inner barrel body 318.

[0079] 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 objects, sufficient heat exchange can be achieved to evenly cool the fresh-keeping storage container 30.

[0080] In other optional embodiments, the internal air path of the fresh-keeping storage container 30 may also adopt other surrounding methods, such as from the left side to the front, from the front of the drawer to the right side, and then from the right side back to the back side, that is, horizontally surrounding the fresh-keeping storage container 30. In comparison, the internal air path that surrounds the fresh-keeping storage container 30 in the longitudinal direction has a better cooling effect.

[0081] Another necessary condition for the fresh-keeping storage container 30 to achieve long-term fresh-keeping storage is to apply a magnetic field for fresh-keeping in the fresh-keeping storage space 330. After in-depth research on the fresh-keeping effect, the magnetic field parameters of the fresh-keeping storage container 30 of this embodiment are preferably configured as an effective magnetic field strength range: 10-100GS (1-10mT), which can be further set to 20-80GS, and further set to 40GS-60GS, such as 10GS, 20GS, 40GS, 60GS, 80GS, 100GS, etc., and the effective magnetic field spacing range: 60-240mm, that is, the magnetic field can reach the above-mentioned strength requirements within a distance range of 60mm to 240mm from the magnetic source component.

[0082] Fig.10 is a schematic diagram of a magnetic field device 410 in a fresh-keeping storage container 30 according to an embodiment of the present invention, Fig.11 yes Fig.10 The magnetic field device 410 is an exploded view of the components. The magnetic field device 410 may include a first magnetic field component 411 and a second magnetic field component 421 disposed opposite to each other. In some embodiments, a magnetic field connector 431 connecting the first magnetic field component 411 and the second magnetic field component 421 may be further provided.

[0083] The first magnetic field assembly 411 and the second magnetic field assembly 421 are arranged opposite to each other, and can be respectively arranged in opposite sides of the barrel body 310 of the fresh-keeping storage container 30, for example, respectively arranged in the barrel body top wall 311 and the barrel body bottom wall 312, or in the barrel body left side wall 314 and the barrel body right side wall 315. In the embodiment where 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 arranged on the barrel body top wall 311 and the barrel body bottom wall 312.

[0084] The first magnetic field assembly 411 and the second magnetic field assembly 421 may adopt a substantially identical structure. For example, the first magnetic field assembly 411 may include a first magnetic source sheet 414 and a first magnetic conductive plate 413. In some embodiments, the first magnetic field assembly 411 may further include a first electromagnetic coil 415. Correspondingly, the second magnetic field assembly 421 may include a second magnetic source sheet 424 and a second magnetic conductive plate 423. In some embodiments, a second electromagnetic coil 425 may be further provided in the second magnetic field assembly 421. The first magnetic conductive plate 413 may be provided on the inner side of the barrel shell 3101, and the first magnetic source sheet 414 is attached to the inner side of the first magnetic conductive plate 413. That is, the inner side of the barrel shell 3101 may be provided with a fixed installation structure of the first magnetic field assembly 411, the first magnetic conductive plate 413 cooperates with the above-mentioned fixed installation structure, and the first magnetic source sheet 414 is attached to the inner side of the first magnetic conductive plate 413, opposite to the air duct member 3111.

[0085] The first magnetic source sheet 414 and the second magnetic source sheet 424 can be permanent magnetic sheets that are uniformly magnetized. Considering the coordination with the first magnetic conductive plate 413 and the second magnetic conductive plate 423, the permanent magnetic sheet can be made of a permanent magnetic material with a certain flexibility, for example, a rubber magnetic sheet with flexibility made by a calendering process of bonding ferrite magnetic powder and synthetic rubber. 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.

[0086] The first magnetic field component 411 and the second magnetic field component 421 can respectively cover the corresponding side surfaces of the fresh-keeping storage space 330. In the embodiment where the first magnetic field component 411 and the second magnetic field component 421 are respectively arranged on the top surface and the bottom surface of the fresh-keeping storage container 30, the first magnetic field component 411 can cover the top surface of the fresh-keeping storage space 330, and the second magnetic field component 421 can cover the bottom surface of the fresh-keeping storage space 330. The magnetic field directions of the first magnetic source sheet 414 and the second magnetic source sheet 424 can be set to be the same, that is, the relative magnetic poles of the first magnetic source sheet 414 and the second magnetic source sheet 424 are opposite magnetic poles, which can further ensure the uniformity of the magnetic field.

[0087] The magnetic field connector 431 connects the first magnetic field component 411 and the second magnetic field component 421 magnetically 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 component 411 and the second magnetic field component 421 are respectively arranged on the top surface and the bottom surface of the fresh-keeping storage container 30, the magnetic field connector 431 can be arranged on the left side and the right side of the fresh-keeping storage container 30, respectively, and its top is connected to the first magnetic field component 411, and its bottom is connected to the second magnetic field component 421. The first magnetic field component 411, the second magnetic field component 421 and the magnetic field connectors 431 on both sides form an outer magnetic conductive path surrounding the fresh-keeping storage space 330, and the fresh-keeping storage space 330 between the first magnetic field component 411 and the second magnetic field component 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, etc.).

[0088] 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, and the magnetic pole direction of the magnetic field formed after power is turned on is consistent with the adjacent 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 taken away by the refrigeration airflow, thereby avoiding the influence of the heat generation on the fresh-keeping storage.

[0089] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these 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 claim 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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