Fresh-keeping storage container for refrigerator and refrigerator

Abstract

The invention provides a fresh-keeping storage container for a refrigerator and the refrigerator. The fresh-keeping storage container for the refrigerator comprises a barrel body and a storage container body, the drawer is arranged in the barrel body in a drawable manner and is configured to define a magnetic field fresh-keeping space together with the barrel body; the two magnetic field assemblies are respectively arranged at the top and the bottom of the magnetic field fresh-keeping space and are configured to form a magnetic field in the magnetic field fresh-keeping space; the one or more magnetic conductive connecting pieces are arranged on the peripheral side of the magnetic field fresh-keeping space and are configured to be connected with the two magnetic field assemblies in a magnetic communication mode, and each magnetic conductive connecting piece comprises a fixing part which is arranged on the barrel body and is disconnected to form one or more notches; and the connecting part is arranged on the drawer and is configured to correspond to the position of the notch after the drawer is placed in the barrel body, so that the connecting part is connected with the fixing part, and the magnetic conductive connecting piece forms a magnetic conductive path. According to the scheme, the structure is simple, assembling is convenient, and the utilization efficiency of the magnetic field fresh-keeping space is improved.

Description

Technical Field

[0001] The invention relates to a refrigeration and freezing storage device, in particular to a fresh-keeping storage container for a refrigerator 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. When using a magnetic field to freeze food, the magnetic field limits the free path of water molecules to a certain extent, which manifests as the breaking of hydrogen bonds in the water molecule clusters. During the phase change process, the growth of the crystal nucleus is inhibited, the growth rate of ice crystals is higher than the migration rate of water molecules, and the resulting ice crystals are smaller, which causes less damage to cells, reduces the loss rate of juice, and better preserves the nutrition and taste of the food.

[0004] When using a magnetic field to refrigerate food, the degree of supercooling of the food can be reduced. For example, the freezing temperature of beef is -2°C. When a magnetic field acts on the beef, the freezing temperature of the beef can drop to -5°C. In this way, the beef can be refrigerated at a lower temperature and remain fresh.

[0005] The refrigerator industry is also actively exploring the introduction of magnetic field preservation technology. In order to ensure that the magnetic field is evenly distributed in the preservation space, some magnetic field components are equipped with magnetic connectors between the magnetic field generating components (magnetic field components), and the magnetic connectors are used to form a closed-loop magnetic path outside the preservation space. The closed-loop magnetic path can make the magnetic field in the preservation space more concentrated and uniform, and reduce the magnetic field loss. However, in the process of implementation on the refrigerator drawer, there is structural interference between the pull-out components on the drawer, such as slides and rails, and the magnetic connectors. Existing solutions require a complex magnetic connector structure to be set on the outside of the drawer, which will occupy the effective storage space of the drawer and cause space waste. In addition, the complex structure will also bring instability to assembly production. Summary of the invention

[0006] One purpose of the present invention is to simplify the structure of the magnetic field component in the fresh-keeping storage container and save the space occupied by it.

[0007] A further object of the present invention is to make the external closed-loop magnetic path of the magnetic field preservation space smooth and improve reliability.

[0008] In particular, the present invention provides a fresh-keeping storage container for a refrigerator, comprising:

[0009] A barrel body having a forward opening;

[0010] The drawer is arranged in the barrel body so as to be pullable from the front opening and configured to define a magnetic field preservation space together with the barrel body;

[0011] Two magnetic field components are respectively arranged at the top and bottom of the magnetic field preservation space and are configured to form a magnetic field in the magnetic field preservation space;

[0012] One or more magnetic conductive connectors are arranged around the magnetic field preservation space and configured to connect the two magnetic field components in a magnetically connected manner, and each magnetic conductive connector includes:

[0013] A fixing portion, disposed on the barrel body, which is broken to form one or more notches;

[0014] The connecting part is arranged on the drawer and configured to correspond to the position of the notch after the drawer is placed on the barrel body, thereby being connected to the fixing part so that the magnetic conductive connecting piece forms a magnetic conductive path.

[0015] Optionally, a slide rail is provided on the barrel body along the pulling direction of the drawer;

[0016] The drawer is provided with a sliding part that cooperates with the slide rail;

[0017] The fixing portion is disconnected by the slide rail and / or the sliding portion, and the connecting portion is provided on the sliding portion.

[0018] Optionally, the magnetic field assembly is arranged on the inner side of the barrel body, and the fixing portion is arranged along the inner side of the barrel body and is disconnected at the slide rail to form a gap;

[0019] The sliding part is provided with a connecting part at a position corresponding to the notch.

[0020] Optionally, the magnetic field assembly is arranged on the inner side of the barrel body, and the fixing portion is also arranged along the outer side of the barrel body and is disconnected at the slide rail to form a gap;

[0021] The sliding part is provided with a protrusion protruding from the slide rail to the outside of the barrel body, and a connecting part is provided at a position corresponding to the protrusion and the notch.

[0022] Optionally, a through hole is opened on the upper portion of the peripheral wall of the barrel body, and the fixing portion passes through the through hole and extends to connect with the magnetic field assembly.

[0023] Optionally, the magnetic field assembly is arranged on the outside of the barrel body, and the fixing portion is also along the outside of the barrel body;

[0024] The drawer is provided with a connecting part at a position corresponding to the notch, and the connecting part extends out of the barrel body through the opening of the barrel body to be connected with the fixing part.

[0025] Optionally, each magnetic field assembly includes a magnetic source sheet and a magnetic conductive plate, the magnetic source sheet is attached to the side of the magnetic conductive plate facing the magnetic field preservation space, and both ends of each magnetic conductive connector are respectively connected to the magnetic conductive plates of the two magnetic field assemblies.

[0026] Optionally, the magnetic source sheet is attached to the central area of ​​the magnetic conductive plate, and the magnetic conductive plate forms an extension portion at the periphery of the central area, and both ends of each magnetic conductive connector are respectively connected to the extension portion.

[0027] Optionally, the magnetic source sheet is a permanent magnetic sheet with uniform magnetization, and the magnetic conductive plate and the magnetic conductive connecting piece are respectively made of high magnetic permeability materials.

[0028] Optionally, a plurality of magnetic conductive connecting members are provided on each lateral side peripheral wall of the barrel body and are arranged at intervals along the pulling direction of the drawer.

[0029] Optionally, a magnetic conductive connecting member is provided on each lateral side peripheral wall of the barrel body, and is arranged in the middle of the drawer's pulling direction.

[0030] Optionally, the magnetic field is configured to have an effective magnetic field strength range of 10-100 GS and an effective spacing range of 60-240 mm.

[0031] According to another aspect of the present invention, a refrigerator is provided, comprising any one of the above-mentioned fresh-keeping storage containers for a refrigerator.

[0032] Optionally, the refrigerator further comprises:

[0033] The box body at least defines a fresh-keeping storage compartment therein, and the box body is provided with a refrigeration air duct at the rear side of the fresh-keeping storage compartment; and

[0034] The fresh-keeping storage container is arranged in the fresh-keeping storage room. The fresh-keeping storage room is provided with an air supply port and an air return port for connecting to the refrigeration air duct on the back plate at the rear of the fresh-keeping storage container, so that the cold air in the refrigeration air duct is introduced into the air supply port, and is sent back to the refrigeration air duct from the return air port after heat exchange with the fresh-keeping storage container.

[0035] Optionally, a heat exchange air duct surrounding the fresh-keeping storage container is formed in the fresh-keeping storage room, and the heat exchange air duct is arranged around the fresh-keeping storage container from the air supply port and finally connected to the return air port.

[0036] The fresh-keeping storage container for refrigerator of the present invention, the drawer and the barrel body jointly define a magnetic field fresh-keeping space, the magnetic field components are relatively arranged at the top and bottom of the magnetic field fresh-keeping space, and a magnetic field that is beneficial to fresh-keeping storage is formed in the magnetic field fresh-keeping space. The magnetic field helps to improve the storage quality, shorten the freezing time, reduce the juice loss rate and nutrient loss of food, reduce the number of microorganisms and bacteria, and extend the fresh-keeping period. The magnetic conductive connector is arranged on the peripheral side of the magnetic field fresh-keeping space and is configured to connect two magnetic field components in a magnetic connection. The magnetic conductive connector forms a magnetic conductive path outside the magnetic field fresh-keeping space, adjusts the distribution of the magnetic field inside the magnetic field fresh-keeping space, and gathers the magnetic field outside the magnetic field fresh-keeping space. The magnetic conductive connector has a fixed part arranged on the barrel body and a connecting part arranged on the drawer. The fixed part is disconnected by other functional components on the barrel body (for example, a slide rail component matched with the drawer) to form a gap. After the drawer is placed on the barrel body, the connecting part corresponds to the position of the gap, thereby connecting with the fixed part, so that the magnetic conductive connector forms a magnetic conductive path. The structure of the magnetic conductive connector utilizes a drawer to achieve magnetic circuit connection, thus avoiding the need for complex magnetic connection components that occupy a large space, facilitating assembly and production, and improving the utilization efficiency of the magnetic field preservation space.

[0037] Furthermore, in the fresh-keeping storage container for the refrigerator of the present invention, the magnetic field component can be arranged on the inner side or the outer side of the barrel body as needed. By optimizing the structure of the magnetic conductive connecting piece and cooperating with the magnetic field components of various structures, the magnetic field lines outside the magnetic field fresh-keeping space are converged and the magnetic field distribution is adjusted, so that the magnetic field in the magnetic field fresh-keeping space is more uniform, which effectively improves the fresh-keeping storage environment. At the same time, it can reduce the release of the magnetic field to the outside of the fresh-keeping storage container and reduce the interference to other external components (for example, avoiding magnetization of other components, etc.).

[0038] Furthermore, the refrigerator of the present invention improves the method of cooling and supplying air to the fresh-keeping storage container, combines the magnetic field preservation technology with the high-precision and high-stability refrigeration technology, greatly improves the preservation effect, and prolongs the fresh-keeping storage time.

[0039] 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

[0040] 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:

[0041] Figure 1 is a schematic diagram of a fresh-keeping storage container for a refrigerator according to an embodiment of the present invention;

[0042] Figure 2 yes Figure 1 An exploded view of the components of the fresh-keeping storage container shown;

[0043] Figure 3 is a schematic diagram of a magnetic field device in a fresh-keeping storage container for a refrigerator according to one embodiment of the present invention;

[0044] Figure 4 is a schematic diagram of a magnetic field device in a fresh-keeping storage container for a refrigerator according to another embodiment of the present invention;

[0045] Figure 5 is a front cross-sectional view of a magnetic field fresh-keeping storage container according to an embodiment of the present invention;

[0046] Figure 6 is a front cross-sectional view of a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0047] Figure 7 is a front cross-sectional view of a magnetic field fresh-keeping storage container according to another embodiment of the present invention;

[0048] Figure 8 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0049] Fig. 9 yes Figure 8 The refrigerator shown is a schematic diagram with the upper door hidden;

[0050] Fig.10 is a schematic diagram of a refrigeration air duct system of a refrigerator according to an embodiment of the present invention;

[0051] Fig.11 It is a schematic diagram of a refrigeration air duct system of a refrigerator according to another embodiment of the present invention. DETAILED DESCRIPTION

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Figure 1 is a schematic diagram of a fresh-keeping storage container 30 for a refrigerator according to an embodiment of the present invention, Figure 2 yes Figure 1 An exploded view of the components of the fresh-keeping storage container 30 is shown; Figure 3 Schematic diagram of a magnetic field device 400 in a fresh-keeping storage container 30 for a refrigerator according to an embodiment of the present invention.

[0057] The fresh-keeping storage container 30 may generally include: a barrel 310, a drawer 320, and a magnetic field device 400. The barrel 310 has a forward opening. The barrel 310 described in this embodiment refers to the barrel 310 disposed outside the drawer 320 and defining a magnetic field fresh-keeping space 330 together with the drawer 320. In some embodiments, other outer shells may be further disposed outside the barrel 310, that is, the barrel 310 may be used as the inner layer of the multi-layer shell of the fresh-keeping storage container 30, and may also be referred to as an inner barrel or barrel liner.

[0058] The drawer 320 is disposed in the barrel body 310 so as to be pullable from the front opening, and is configured to define a magnetic field preservation space together with the barrel body 310. In the description of this embodiment, unless otherwise specified, the relative position relationship of other components is described based on the state that the drawer 320 is pushed into the barrel body 310. Those skilled in the art should understand that when the drawer 320 is pulled out of the barrel body 310 to expose the top space for taking and placing items, the relative position of the components disposed on the drawer 320 and the barrel body 310 will be displaced in the pulling direction.

[0059] The magnetic field device 400 may include a magnetic field assembly 410 and a magnetic conductive connector 431. The two magnetic field assemblies 410 are respectively arranged at the top and bottom of the magnetic field preservation space 330, and are configured to form a magnetic field in the magnetic field preservation space 330, which is conducive to forming a fresh-keeping storage environment and extending the preservation time of the stored objects. Those skilled in the art should understand that the magnetic field strength will decay accordingly as the distance from the magnetic source increases. Therefore, in order to ensure that the magnetic field of the magnetic field assembly 410 can be used as fully as possible in the magnetic field preservation space, the magnetic field assembly 410 can be as close to the stored objects as possible. In some embodiments, the magnetic field assembly 410 can be arranged on the inside or outside of the barrel body 310, directly against the barrel wall of the barrel body 310, thereby reducing the distance from the stored objects.

[0060] Each magnetic field component 410 includes a magnetic source sheet 411 and a magnetic conductive plate 412. The magnetic source sheet 411 is attached to the side of the magnetic conductive plate 412 facing the magnetic field preservation space 330, that is, the magnetic source sheet 411 can be attached to the inner side of the magnetic conductive plate 412 (the side closer to the magnetic field preservation space 330).

[0061] In some embodiments, the size of the magnetic source sheet 411 may be slightly smaller than the size of the magnetic conductive plate 412. The magnetic source sheet 411 is attached to the central area of ​​the magnetic conductive plate 412. Therefore, the magnetic conductive plate 412 may have an extension portion (the edge that exceeds the coverage area of ​​the magnetic source sheet 411) on the periphery of the magnetic source sheet 411. The magnetic source sheet 411 and the magnetic conductive plate 412 are required to fit tightly to ensure that the two can be reliably magnetically connected. In some embodiments, the magnetic source sheet 411 and the magnetic conductive plate 412 are coated with a magnetic conductive adhesive to achieve better adhesion between the two. The magnetic conductive adhesive may use silicone magnetic conductive adhesive or epoxy magnetic conductive adhesive. The magnetic conductive connector 431 is magnetically connected to the magnetic field assembly 410. The specific connection method may be: the two ends of each magnetic conductive connector 431 are respectively connected to the magnetic conductive plates 412 of the two magnetic field assemblies 410. In some embodiments, the end of the magnetic connector 431 can be set to abut against the extension of the magnetic plate 412, but have a magnetic gap with the magnetic source sheet 411, so as to avoid interfering with the magnetic field distribution in the magnetic field preservation space 330 while forming an external magnetic circuit.

[0062] The magnetic conductive plate 412 can evenly distribute the magnetic field generated by the magnetic source sheet 411, so that the magnetic field on the entire side of the magnetic field preservation space 330 where the magnetic field assembly 410 is located is evenly distributed.

[0063] The magnetic source sheet 411 may be a permanent magnetic sheet with uniform magnetization, for example, it may be made of a permanent magnetic material with a certain flexibility, for example, it may be a rubber magnetic sheet with flexibility made by compounding bonded ferrite magnetic powder and synthetic rubber through a calendering molding process.

[0064] The magnetic conductive plate 412 and the magnetic conductive connector 431 are made of high magnetic permeability materials. The high magnetic permeability material can be a ferromagnetic material with a magnetic permeability of about 100 or more, which is much greater than the air environment and has a low coercive force. The magnetic field will preferentially pass through the high magnetic permeability material.

[0065] In other embodiments, each magnetic field assembly 410 may also be provided with an electromagnetic component (not shown in the figure), for example, the electromagnetic component is arranged in a ring shape, arranged around the outer periphery of the permanent magnet sheet, that is, the permanent magnet sheet can be arranged in the annular inner ring of the electromagnetic component. The electromagnetic field generated by the electromagnetic component can compensate for the weaker magnetic field in the edge area of ​​the permanent magnet sheet, so that the entire magnetic field preservation space 330 covered by the permanent magnet sheet can achieve a uniform magnetic field, thereby improving the food preservation effect of the entire preservation space. Thereby overcoming the situation where the magnetic field in the edge area of ​​the permanent magnet sheet is weak and the magnetic field strength is uneven. In addition, the electromagnetic component can also be arranged to be close to the permanent magnet sheet, for example, arranged on the inner side of the permanent magnet sheet, or arranged between the permanent magnet sheet and the magnetic conductive plate 412.

[0066] The magnetic connection member 431 is disposed on the periphery of the magnetic field preservation space 330 and is configured to connect the two magnetic field components in a magnetically connected manner. The periphery of the magnetic field preservation space 330 may be the left side, the right side, the rear side, or the front side. Considering the pull-out method of the drawer 320, the magnetic connection member 431 may be preferentially disposed on the lateral sides of the magnetic field preservation space 330, i.e., the left side and the right side.

[0067] The relative magnetic field assembly 410 and the magnetic connection member 431 form a magnetic path outside the magnetic field preservation space 330, adjust the distribution of the magnetic field inside the magnetic field preservation space 330, and gather the magnetic field outside the magnetic field preservation space 330. The magnetic path can adjust the magnetic field distribution by converging the magnetic field lines outside the magnetic field preservation space 330, so that the magnetic field inside the magnetic field preservation space 330 is more uniform, and the fresh-keeping storage environment is effectively improved.

[0068] Since the magnetic connector 431 is arranged on the barrel body 310, and the barrel body 310 is also provided with other functional components, such as slide rails and other components that cooperate with the drawer 320. In order to avoid structural interference between the magnetic connector 431 and other functional components on the barrel body 310. The magnetic connector 431 may include: a fixing portion 4311 and a connecting portion 4312. The fixing portion 4311 is arranged on the barrel body 310, and is disconnected by other functional components of the barrel body 310 to form one or more notches 4313. The connecting portion 4312 is arranged on the drawer 320, and is configured to correspond to the position of the notch 4313 after the drawer 320 is placed on the barrel body, thereby being connected to the fixing portion 4311, so that the magnetic connector 431 forms a complete magnetic conductive path.

[0069] The fixed part 4311 of the magnetic connection piece 431 is no longer designed with a complicated giving way structure at the position where it interferes with the structure of other functional components of the barrel body 310, but directly forms a notch 4313 at these interference positions. The connection part 4312 moves with the drawer 320. After the drawer 320 is pushed into the barrel body 310, the connection part 4312 corresponds to the position of the notch 4313, so as to be connected with the fixed part 4311, so that the magnetic connection piece 431 forms a magnetic path. The connection position of the connection part 4312 and the fixed part 4311 can be provided with a slot, an elastic clamping structure, a butterfly spring, etc., and after the drawer 320 is pushed into the barrel body 310, the connection part 4312 and the fixed part 4311 are reliably connected to ensure smooth connection of the magnetic circuit.

[0070] In some embodiments, a slide rail 311 is provided on the barrel 310 along the pulling direction of the drawer 320. A sliding portion 321 (which is a matching piece of the slide rail 311) that cooperates with the slide rail 311 is provided on the drawer 320; the fixed portion 4311 is disconnected by the slide rail 311 and / or the slide portion 321, and the connecting portion 4312 can be provided on the slide portion 321, and the specific position can correspond to the notch 4313. In some alternative embodiments, the sliding portion 321 can be supported as a whole by a high magnetic permeability material, and during the sliding process, the sliding portion 321 always maintains a magnetic connection with the fixed portion 4311.

[0071] A magnetic conductive connector 431 is provided on each lateral peripheral wall of the barrel body 310, and the magnetic conductive connector 431 can be provided in the middle of the drawer 320 in the pulling direction. For example, a magnetic conductive connector 431 can be provided in the center of the magnetic field preservation space 330 on both lateral sides (left and right) along the pulling direction to ensure the uniformity of the magnetic field of the magnetic field preservation space 330. In some alternative embodiments, due to possible structural interference of other components, the magnetic conductive connector 431 can also be provided at a position deviated from the center along the pulling direction, and closer to the front or rear side, but compared with the structure of providing the magnetic conductive connector 431 in the center along the pulling direction, this setting method deviating from the central position will have a smaller impact on the uniformity of the magnetic field.

[0072] Figure 4 : is a schematic diagram of a magnetic field device 400 in a magnetic field fresh-keeping storage container 30 according to another embodiment of the present invention. In this embodiment, a plurality of magnetic conductive connectors 431 are provided on each lateral peripheral wall of the barrel body 310, and are spaced apart along the pulling direction of the drawer 320. In other words, a plurality of magnetic conductive connectors 431 are spaced apart on both sides of the barrel body 310, and both ends of each magnetic conductive connector 431 are connected to the magnetic field assembly 410 respectively. The figure shows a case where two magnetic conductive connectors 431 are provided on each side. When the solution of this embodiment is actually applied, those skilled in the art can select the number of magnetic conductive connectors 431 provided on each side as needed, for example, three or more.

[0073] The magnetic field generated by the magnetic field device 400, which is beneficial to fresh-keeping storage, is configured to have an effective magnetic field strength range of 10-100GS, and can be further set to 40GS-60GS, for example 10GS, 20GS, 40GS, 60GS, 80GS, 100GS, etc. The effective spacing range of the magnetic field is 60-240mm, and the effective spacing range of the magnetic field is 60-240mm, that is, the magnetic field can reach the above-mentioned intensity requirement within a distance range of 60mm to 240mm from the magnetic source component.

[0074] Figure 5 It is a front cross-sectional view of a magnetic field preservation storage container 30 according to an embodiment of the present invention. The magnetic field assembly 410 is arranged on the inner side of the barrel body 310, and the fixing portion 4311 of the magnetic conductive connector 431 is arranged along the outer side of the barrel body 310 and is disconnected at the slide rail to form a gap. The sliding portion of the magnetic conductive connector 431 is provided with a protrusion 3211 protruding from the slide rail to the outer side of the barrel body 310, and a connecting portion 4312 is provided at a position corresponding to the protrusion 3211 and the gap. A through hole is provided on the upper part of the peripheral wall of the barrel body 310, and the fixing portion of the magnetic conductive connector 431 passes through the through hole and extends to connect with the magnetic field assembly 410.

[0075] The magnetic field assembly 410 is arranged inside the barrel body 310, so that it can be closer to the stored objects; and the fixing portion 4311 of the magnetic connection member 431 is arranged along the outside of the barrel body 310, which can reduce the occupation of the internal space of the barrel body 310 on the one hand, and also make it easier to install the fixing portion 4311 on the outside of the barrel body 310 on the other hand. The protrusion 3211 can extend through the hole or opening provided on the barrel body 310, so that the connection portion 4312 cooperates with the fixing portion 4311.

[0076] Figure 6 It is a front cross-sectional view of a magnetic field preservation storage container according to another embodiment of the present invention. In this embodiment, the magnetic field assembly 410 is arranged on the outside of the barrel body 310, and the fixing portion 4311 of the magnetic conductive connector 431 is also along the outside of the barrel body 310; the drawer 320 is provided with a connecting portion 4312 at a position corresponding to the notch, and the connecting portion 4312 extends out of the barrel body 310 through the opening of the barrel body 310 to connect with the fixing portion 4311. The magnetic field assembly 410 and the fixing portion 4311 of the magnetic conductive connector 431 are both located on the outside of the barrel body 310, which is easier to assemble and reduces interference with the internal components of the barrel body 310. In addition, the magnetic field assembly 410 and the magnetic conductive connector 431 can reduce contact with the stored objects, which is more conducive to corrosion prevention.

[0077] Figure 7 4 is a front cross-sectional view of a magnetic field preservation storage container according to another embodiment of the present invention. In this embodiment, the magnetic field assembly 410 is arranged on the inner side of the barrel body 310, and the fixing portion 4311 of the magnetic conductive connector 431 is also along the inner side of the barrel body 310; the drawer 320 is provided with a connecting portion 4312 at a position corresponding to the notch. The magnetic field assembly 410 and the fixing portion 4311 of the magnetic conductive connector 431 are both located on the inner side of the barrel body 310, so that the outer structure of the barrel body 310 is more complete, but considering that the magnetic field assembly 410 and the magnetic conductive connector 431 are more likely to contact the stored objects, further special anti-corrosion treatment is required.

[0078] Figure 8 is a schematic diagram of a refrigerator 10 according to an embodiment of the present invention; Fig. 9 yes Figure 8 The refrigerator 10 shown is a schematic diagram without the upper door 11. The refrigerator of this embodiment generally includes a box 12, a door 11, and a refrigeration system (not shown in the figure). The box 12 may include components such as an outer shell, an inner liner, a heat insulation layer, and a decorative panel.

[0079] At least one storage compartment with an open front side may be defined in the box body 12, usually multiple, such as a refrigerated storage compartment 121, a frozen storage compartment 123, a variable temperature storage compartment 122, and the like. Those skilled in the art can configure the number, function, and layout of specific storage compartments according to requirements. The number of door bodies 11 can match the number of storage compartments, so that the storage compartments can be opened one by one. The door body 11 can also be in the form of a swing door, a double door, a side sliding door, a drawer door, and the like. The number and function of the specific storage compartments can be configured according to pre-determined requirements. Depending on the layout of the storage compartments, the refrigerator can be set as a single-door refrigerator or a multi-door refrigerator, and the multi-door refrigerator can include: a double-door refrigerator, a three-door refrigerator, a double-door refrigerator, a French refrigerator, an Italian refrigerator, and the like. Figure 8 and Fig. 9 The French style four-door refrigerator shown is only an example.

[0080] In some embodiments, the storage temperature of the refrigerated storage compartment 121 may be 0 to 9°C, or, for example, 2 to 7°C; the storage temperature of the frozen storage compartment 123 may be -22 to -14°C, or -20 to 16°C, and the variable temperature storage compartment 122 is disposed between the refrigerated storage compartment 121 and the frozen storage compartment 123. The variable temperature storage compartment 122 may be adjusted according to demand to store appropriate food, or serve as a fresh-keeping storage compartment.

[0081] 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 123, and the variable temperature storage room 122. For another example, the fresh-keeping storage container 30 can also be arranged in multiple of the refrigerated storage room 121, the frozen storage room 123, and the variable temperature storage room 122 at the same time, that is, the fresh-keeping storage container 30 is respectively arranged in multiple different storage rooms at the same time. For another example, multiple fresh-keeping storage containers 30 can also be arranged in a storage room at the same time as needed. Fig. 9 The example of setting a fresh-keeping storage container 30 in the refrigerated storage compartment 121 is shown. The fresh-keeping storage container 30 is a drawer structure storage container. In addition to the fresh-keeping storage container 30, other drawer storage containers can also be set in the refrigerated storage compartment 121.

[0082] The refrigerator 10 of this embodiment may be an air-cooled refrigerator. Fig.10Schematic diagram of the refrigeration air duct system of a refrigerator 10 according to an embodiment of the present invention. An air duct system is provided in the cabinet 12, and the air duct system delivers the air passing through the heat exchanger (evaporator) to each storage compartment. The air duct system is generally provided at the back of the cabinet 12, and is composed of an air duct cover plate, foam parts, etc. The refrigeration system can be divided into a multi-system and a single system according to the number of evaporators in the refrigeration system. The multi-system includes multiple evaporators, and each evaporator is responsible for the refrigeration of part of the storage compartment. Fig.10 Taking the refrigeration air duct system shown as an example, a refrigeration refrigeration air duct 131 is formed at the back of the refrigerated storage compartment 121. A refrigeration evaporator 133 is arranged in the refrigeration refrigeration air duct 131, and a refrigeration refrigeration fan 132 promotes the formation of a refrigerated airflow in the refrigerated storage compartment 121. A freezing refrigeration air duct 135 is formed at the back of the frozen storage compartment 123 and the variable temperature storage compartment 122. A freezing evaporator 137 is arranged in the freezing refrigeration air duct 135, and a freezing refrigeration fan 136 promotes the formation of a freezing airflow in the frozen storage compartment 123 and / or the variable temperature storage compartment 122.

[0083] The refrigeration evaporator 133 and the freezing evaporator 137 can be controlled to start and stop respectively. For example, when the temperature of the frozen storage room 123 reaches the refrigeration start condition, the freezing evaporator 137 and the freezing refrigeration fan 136 can start refrigeration. The refrigerated airflow is sent to the frozen storage room 123 from the position where the freezing evaporator 137 is located through the air supply ports at various positions of the frozen storage room 123. After the refrigerated refrigeration airflow is sent into the frozen storage room 123, it exchanges heat with the stored objects to cool them down. Then it returns to the position where the freezing evaporator 137 is located through the return air port of the frozen storage room 123, completing the airflow cycle.

[0084] For another example, when the temperature of the refrigerated storage compartment 121 reaches a refrigeration start condition, the refrigeration evaporator 133 and the refrigeration fan 132 may start refrigeration.

[0085] The refrigerated airflow is sent to the refrigerated storage room 121 from the location of the refrigerated evaporator 133 through the air gates at different locations of the refrigerated storage room 121, and then the refrigerated airflow flows forward from the refrigerated storage room 121, exchanges heat with the stored items inside the refrigerated storage room 121, and cools them. The refrigerated airflow then returns from the refrigerated storage room 121 to the location of the refrigerated evaporator 133 through the return air port, completing the airflow cycle. A plurality of air gates may be provided in the refrigerated refrigeration air duct 131, and the plurality of air gates may adjust the delivery area of ​​the refrigerated refrigeration airflow. Among the plurality of air gates, a fresh-keeping refrigeration air gate 134 may be included, and the fresh-keeping refrigeration air gate 134 is specifically used to adjust the on / off and size of the refrigeration airflow of the fresh-keeping storage container 30. Alternatively, in some embodiments, a centralized airflow distribution device may be provided in the refrigeration duct 131, which is connected to the air ducts leading to different areas of the refrigerated storage compartment 121, and can distribute the refrigerated airflow leading to different areas of the refrigerated storage compartment 121. The fresh-keeping storage container 30 may be provided with a dedicated refrigeration airflow channel for independent refrigeration control.

[0086] The refrigeration start and stop conditions of the refrigeration evaporator 133 and the freezing evaporator 137 are well known to those skilled in the art, and those skilled in the art of refrigerators can set the refrigeration start and stop conditions according to refrigeration requirements. The refrigerator of this embodiment makes special improvements to the refrigeration method of the fresh-keeping storage container 30.

[0087] The fresh-keeping storage container 30 is arranged in a fresh-keeping storage compartment (which can be a part of the refrigerated storage compartment 121 or can be independent of the refrigerated storage compartment 121). The fresh-keeping storage compartment is provided with an air supply port 316 and an air return port 317 for connecting to the refrigeration air duct 131 on the back plate at the rear of the fresh-keeping storage container 30, so that the cold air in the refrigeration air duct 131 is introduced into the air supply port 316, and is sent back to the refrigeration air duct from the air return port 317 after heat exchange with the fresh-keeping storage container 30.

[0088] An insulation layer 124 is provided between the fresh-keeping storage compartment where the fresh-keeping storage container 30 is located and the adjacent refrigerated storage compartment 121. The insulation layer 124 can set the fresh-keeping storage temperature of the fresh-keeping storage compartment to be different from the storage temperature of the surrounding storage space. The fresh-keeping storage temperature can be set to be lower than the refrigerated storage temperature, and the characteristic of being difficult to freeze under supercooling in a magnetic field environment is utilized to achieve a longer fresh-keeping storage period. For example, the fresh-keeping storage temperature can be set to -2 degrees Celsius to 0 degrees Celsius.

[0089] When the fresh-keeping refrigeration damper 134 is opened or the centralized airflow distribution device is turned on to supply air to the fresh-keeping storage compartment where the fresh-keeping storage container 30 is located, the refrigerated airflow is sent into the fresh-keeping storage container 30 from the air supply port. In this embodiment, the refrigerated airflow does not directly enter the magnetic field fresh-keeping space 330, but exchanges heat around the fresh-keeping storage container 30 to prevent the refrigerated airflow with a lower temperature from directly contacting the stored items inside the magnetic field fresh-keeping space 330. One way for the refrigerated airflow to surround the fresh-keeping storage container 30 is that the airflow enters the top of the fresh-keeping storage container 30 from the air supply port 316, and then the airflow flows from the back to the front of the top of the fresh-keeping storage container 30, and then the airflow flows from the front of the fresh-keeping storage container 30 from top to bottom, and finally the airflow returns to the return air port 317 from the front to the back along the bottom of the fresh-keeping storage container 30. The refrigeration air path of the above-mentioned fresh-keeping storage container 30 surrounds the entire fresh-keeping storage container 30. Without entering the magnetic field fresh-keeping 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.

[0090] A heat exchange air duct 340 surrounding the fresh-keeping storage container 30 is formed in the fresh-keeping storage room. The heat exchange air duct 340 extends forward from the air supply port 316 along the side wall (e.g., top wall) of the fresh-keeping storage container 30 to the front of the fresh-keeping storage container 30 and then extends backward along the other side wall (e.g., bottom wall) to the return air port 317.

[0091] In other optional embodiments, the heat exchange air duct 340 may also adopt other surrounding methods, for example, 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. That is, the heat exchange air duct 340 extends forward from the air supply port 316 along the left side wall (or right side wall) of the fresh-keeping storage container 30 to the front of the fresh-keeping storage container 30 and then extends backward along the right side wall (or left side wall) to the return air port 317.

[0092] In order to improve the refrigeration efficiency, it is generally necessary to send the refrigeration airflow into the storage space. Even in order to avoid local overcooling caused by direct current blowing, the technical means generally used are to use holes with smaller apertures to send air into the drawer storage space or to set up a special air guide channel inside the storage space. The fresh-keeping storage container 30 of this embodiment creatively proposes a solution of using a surrounding air path to achieve indirect refrigeration instead of sending the refrigeration airflow into the magnetic field fresh-keeping space 330, which better combines the magnetic field to improve the fresh-keeping effect and overcome the existing technical prejudices of those skilled in the art.

[0093] Fig.111 is a schematic diagram of a refrigeration air duct system of a refrigerator 10 according to another embodiment of the present invention. In this embodiment, a refrigeration evaporator 137 is used to refrigerate a refrigerated storage compartment 121, a variable temperature storage compartment 122, and a frozen storage compartment 123. A refrigeration air duct 131 is formed at the back of the refrigerated storage compartment 121. A refrigeration air duct 135 is formed at the back of the frozen storage compartment 123 and the variable temperature storage compartment 122. A refrigeration evaporator 137 is provided in the refrigeration air duct 135, and a refrigeration fan 136 promotes the formation of a refrigeration airflow.

[0094] A refrigeration damper 138 may be provided between the freezing refrigeration air duct 135 and the cold storage refrigeration air duct 131. When the cold storage compartment 121 needs to be refrigerated separately, the refrigeration damper 138 is opened, and the dampers at the air outlets of the frozen storage compartment 123 and the variable temperature storage compartment 122 can be all closed, so that the refrigeration airflow formed by the freezing refrigeration fan 136 can be sent into the refrigeration refrigeration air duct 131 through the refrigeration damper 138. When the frozen storage compartment 123 or the variable temperature storage compartment 122 needs to be refrigerated separately, the refrigeration damper 138 is closed, and the dampers at the air outlets of the frozen storage compartment 123 and the variable temperature storage compartment 122 are opened accordingly, so that the refrigeration airflow formed by the freezing refrigeration fan 136 can be sent into the frozen storage compartment 123 and the variable temperature storage compartment 122. When the refrigerated storage compartment 121 and the frozen storage compartment 123 need to be refrigerated at the same time, the refrigerated air door 138 and the air door at the air outlet of the frozen storage compartment 123 can be opened, and the refrigerated air flow flows simultaneously in the frozen refrigeration air duct 135 and the refrigerated refrigeration air duct 131. The refrigeration system of the refrigerator 10 can adjust the frequency of the compressor to adjust the refrigeration capacity of the evaporator to match the refrigeration requirements of different storage compartments.

[0095] The refrigerated storage compartment 121 is also provided with an air supply port 316 and an air return port 317 for connecting to the refrigeration air duct 131 on the back plate at the rear of the fresh-keeping storage container 30, so that the cold air in the refrigeration air duct 131 is introduced into the air supply port 316, and is returned to the refrigeration air duct from the air return port 317 after heat exchange with the fresh-keeping storage container 30.

[0096] An insulation layer 124 is provided between the fresh-keeping storage compartment where the fresh-keeping storage container 30 is located and the adjacent refrigerated storage compartment 121. The insulation layer 124 can set the fresh-keeping storage temperature of the fresh-keeping storage compartment to be different from the storage temperature of the surrounding storage space. The fresh-keeping storage temperature can be set to be lower than the refrigerated storage temperature, and the characteristic of being difficult to freeze under supercooling in a magnetic field environment is utilized to achieve a longer fresh-keeping storage period. For example, the fresh-keeping storage temperature can be set to -2 degrees Celsius to 0 degrees Celsius.

[0097] When the fresh-keeping refrigeration damper 134 is opened or the centralized airflow distribution device is turned on to supply air to the fresh-keeping storage compartment where the fresh-keeping storage container 30 is located, the refrigerated airflow is sent into the fresh-keeping storage container 30 from the air supply port. In this embodiment, the refrigerated airflow does not directly enter the magnetic field fresh-keeping space 330, but exchanges heat around the fresh-keeping storage container 30 to prevent the refrigerated airflow with a lower temperature from directly contacting the stored objects inside the magnetic field fresh-keeping space 330.

[0098] A heat exchange air duct 340 surrounding the fresh-keeping storage container 30 is formed in the fresh-keeping storage room. The heat exchange air duct 340 extends forward from the air supply port 316 along the side wall (e.g., top wall) of the fresh-keeping storage container 30 to the front of the fresh-keeping storage container 30 and then extends backward along the other side wall (e.g., bottom wall) to the return air port 317.

[0099] 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 for a refrigerator, characterized in that include: A barrel body having a forward opening; A drawer is disposed in the barrel body so as to be drawable from the front opening and configured to define a magnetic field preservation space together with the barrel body; Two magnetic field components are respectively arranged at the top and bottom of the magnetic field preservation space and are configured to form a magnetic field in the magnetic field preservation space; One or more magnetic conductive connectors are arranged on the peripheral side of the magnetic field preservation space and are configured to connect the two magnetic field components in a magnetically connected manner, and each of the magnetic conductive connectors includes: A fixing portion, arranged on the barrel body, which is broken to form one or more notches; The connecting part is arranged on the drawer and configured to correspond to the position of the notch after the drawer is placed on the barrel body, thereby being connected to the fixing part so that the magnetic conductive connecting piece forms a magnetic conductive path.

2. The fresh-keeping storage container for refrigerator according to claim 1, characterized in that The barrel body is provided with a slide rail along the pulling direction of the drawer; The drawer is provided with a sliding portion that cooperates with the slide rail; The fixing portion is disconnected by the slide rail and / or the sliding portion, and the connecting portion is arranged on the sliding portion.

3. The fresh-keeping storage container for refrigerator according to claim 2, characterized in that The magnetic field assembly is arranged on the inner side of the barrel body, and the fixing portion is also arranged along the inner side of the barrel body and is disconnected at the slide rail to form the notch; The sliding portion is provided with the connecting portion at a position corresponding to the notch.

4. The fresh-keeping storage container for refrigerator according to claim 2, characterized in that The magnetic field assembly is arranged on the inner side of the barrel body, and the fixing portion is arranged along the outer side of the barrel body and is disconnected at the slide rail to form the notch; The sliding part is provided with a protrusion protruding from the slide rail toward the outside of the barrel body, and the connecting part is provided at a position corresponding to the protrusion and the notch.

5. The fresh-keeping storage container for refrigerator according to claim 4, characterized in that A through hole is formed on the upper portion of the peripheral wall of the barrel body, and the fixing portion passes through the through hole and extends to connect with the magnetic field component.

6. The fresh-keeping storage container for refrigerator according to claim 2, characterized in that The magnetic field assembly is arranged on the outside of the barrel, and the fixing portion is also arranged along the outside of the barrel; The drawer is provided with the connecting portion at a position corresponding to the notch, and the connecting portion extends out of the barrel body through the opening of the barrel body to be connected with the fixing portion.

7. The fresh-keeping storage container for a refrigerator according to claim 1, characterized in that Each of the magnetic field components comprises a magnetic source sheet and a magnetic conductive plate. The magnetic source sheet is attached to the side of the magnetic conductive plate facing the magnetic field preservation space, and both ends of each magnetic conductive connector are connected to the magnetic conductive plates of the two magnetic field components.

8. The fresh-keeping storage container for a refrigerator according to claim 7, characterized in that The magnetic source sheet is attached to the central area of ​​the magnetic conductive plate, and the magnetic conductive plate forms an extension portion at the periphery of the central area, and both ends of each magnetic conductive connector are respectively connected to the extension portion.

9. The fresh-keeping storage container for a refrigerator according to claim 7, characterized in that The magnetic source sheet is a permanent magnetic sheet with uniform magnetization, and the magnetic conductive plate and the magnetic conductive connecting piece are respectively made of high magnetic permeability materials.

10. The fresh-keeping storage container for a refrigerator according to claim 1, characterized in that A plurality of magnetic conductive connecting members are arranged on each lateral side peripheral wall of the barrel body and are arranged at intervals along the pulling direction of the drawer.

11. The fresh-keeping storage container for a refrigerator according to claim 1, characterized in that A magnetic conductive connecting member is arranged on each lateral side peripheral wall of the barrel body and is arranged in the middle of the drawer in the pulling direction.

12. The fresh-keeping storage container for a refrigerator according to claim 1, characterized in that The magnetic field is configured such that the effective magnetic field strength ranges from 10 to 100 GS and the effective spacing ranges from 60 to 240 mm.

13. A refrigerator, characterized in that include: A fresh-keeping storage container for a refrigerator according to any one of claims 1 to 12.

14. The refrigerator according to claim 13, characterized in that Also includes: A box body, at least defining a fresh-keeping storage compartment inside thereof, and the box body is provided with a refrigeration air duct at the rear side of the fresh-keeping storage compartment; and The fresh-keeping storage container is arranged in the fresh-keeping storage room, and the fresh-keeping storage room is provided with an air supply port and an air return port for connecting to the refrigeration air duct on the back plate at the rear of the fresh-keeping storage container, so that the cold air in the refrigeration air duct is introduced into the air supply port, and is sent back to the refrigeration air duct from the air return port after heat exchange with the fresh-keeping storage container.

15. The refrigerator according to claim 14, characterized in that A heat exchange air duct surrounding the fresh-keeping storage container is formed in the fresh-keeping storage room. The heat exchange air duct is arranged around the fresh-keeping storage container from the air supply port and is finally connected to the air return port.

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