CN220959138U

CN220959138U - Fresh-keeping storage container and refrigerator

Info

Publication number: CN220959138U
Application number: CN202322194520.8U
Authority: CN
Inventors: 姬立胜; 王凯; 刘勇豪; 王润
Original assignee: Qingdao Haier Refrigerator Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-05-14
Anticipated expiration: 2033-08-15

Abstract

The utility model provides a fresh-keeping storage container and a refrigerator. The fresh-keeping storing container includes: the inner barrel body is provided with an accommodating chamber, and an air supply duct is formed on the outer side of the top side wall of the inner barrel body; the magnetic field assembly is arranged in the outer side of the top side wall of the inner barrel body, is arranged between the air supply air duct and the accommodating chamber and is used for generating a magnetic field in the accommodating chamber; a heat insulation layer is formed between the air supply duct and the accommodating compartment. The cold quantity of cold air is conducted to the accommodating chamber through the magnetic field assembly, the heat insulation layer and the top wall of the inner barrel body, so that a proper quantity of cold quantity can be transferred to the accommodating chamber, the whole accommodating chamber can keep proper storage temperature, and the problem of local overcooling in the accommodating chamber can be effectively avoided.

Description

Fresh-keeping storage container and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration and freezing, in particular to a fresh-keeping storage container and a refrigerator.

Background

Refrigerators are a common home appliance capable of storing foods using a low temperature, thereby extending the storage life of the foods. The research at present finds that the magnetic field has great improvement effect on the fresh-keeping effect of the food materials. One of the points is that under the action of the magnetic field, the food can be refrigerated below zero, namely the food is not frozen below zero, and the food fresh-keeping effect is good.

However, the non-frozen state of the food material is relatively unstable below zero, and if the temperature is below the proper sub-zero range, it will freeze due to excessive supercooling. The existing refrigerator directly blows food materials by using cold air, so that the problem of local overcooling of the food materials is easy to occur, and the storage of the food materials under a magnetic field is not facilitated.

Disclosure of utility model

An object of the present utility model is to provide a fresh-keeping storage container and a refrigerator which can solve any of the above problems.

A further object of the utility model is to simplify the construction.

In particular, the present utility model provides a fresh-keeping storage vessel comprising:

The inner barrel body is provided with an accommodating chamber, and an air supply duct is formed on the outer side of the top side wall of the inner barrel body; and

The magnetic field assembly is arranged in the outer side of the top side wall of the inner barrel body, is arranged between the air supply air duct and the accommodating chamber and is used for generating a magnetic field in the accommodating chamber;

A heat insulation layer is formed between the air supply duct and the accommodating compartment.

Optionally, the thermal insulation layer is an air thermal insulation layer.

Optionally, the thermal insulation layer is formed on a side of the magnetic field assembly facing away from the air supply duct.

Optionally, a supporting rib is arranged on the outer surface of the top side wall of the inner barrel body and supports the magnetic field assembly, so that an air heat insulation layer is formed between the magnetic field assembly and the top side wall of the inner barrel body.

Optionally, the magnetic field assembly comprises:

the source magnetic piece is used for generating a magnetic field;

and the magnetic homogenizing plate is arranged on one side of the source magnetic piece, which is away from the accommodating compartment.

Optionally, the source magnetic piece is a structure formed by a permanent magnetic sheet and an electromagnetic coil, the supporting ribs enclose a placing groove, the electromagnetic coil is arranged in the placing groove, and the supporting ribs support the permanent magnetic sheet.

Optionally, the magnetic field assembly forms a duct wall of the supply duct.

Optionally, the fresh-keeping storage container comprises an air duct cover plate, the air duct cover plate is arranged on one side of the magnetic field assembly, which is away from the accommodating compartment, and an air supply air duct is formed on one side of the air duct cover plate, which is opposite to the magnetic field assembly.

Optionally, an air path recess is formed on a side of the air duct cover plate facing the magnetic field assembly in a direction away from the magnetic field assembly, the air path recess extends from the rear end to the front end of the air duct cover plate, and the air path recess and the magnetic field assembly define an air supply air duct.

Optionally, the thermal insulation layer is a cold storage structure.

Optionally, the ratio of the thermal conductivity coefficient to the thickness of the thermal insulation layer is greater than or equal to 5 and less than or equal to 100, wherein the unit of the thermal conductivity coefficient is watt/meter·degree, and the unit of the thickness is meter.

Optionally, the fresh-keeping storage container comprises two magnetic field components and two magnetic conduction pieces, wherein one magnetic field component is arranged outside the top side wall of the inner barrel body, and the other magnetic field component is arranged outside the bottom side wall of the inner barrel body;

The two magnetic conduction pieces are respectively arranged on the outer side of the left side wall and the outer side of the right side wall of the inner barrel body, and two ends of the magnetic conduction pieces are respectively connected with the two magnetic field assemblies.

Optionally, the fresh-keeping storage container further comprises an outer shell, the outer shell is sleeved on the outer side of the inner barrel, an interlayer space is formed between the top side wall of the outer shell and the top side wall of the inner barrel, and the air supply duct, the magnetic field assembly and the heat insulation layer are arranged in the interlayer space.

Optionally, the thermal insulation layer is disposed on a side of the magnetic field assembly facing the air supply duct.

In another aspect of the utility model, there is also provided a refrigerator comprising a fresh storage vessel according to any one of the preceding claims.

Optionally, the refrigerator comprises a box body, wherein the box body is provided with a storage compartment, and the fresh-keeping storage container is arranged in the storage compartment.

Optionally, the air supply duct is formed between an inner top wall of the storage compartment and a top wall of the inner barrel, and the inner top wall of the storage compartment forms a top duct wall of the air supply duct.

Optionally, the magnetic field assembly forms a bottom duct wall of the air supply duct, or the thermal insulation layer forms a bottom duct wall of the air supply duct.

The fresh-keeping storage container is characterized in that an air supply air duct is arranged on the outer side of the top side wall of the inner barrel body, and a magnetic field assembly and a heat insulation layer are arranged between the air supply air duct and the accommodating compartment. The magnetic field component generates a magnetic field in the accommodating chamber, so that food in the accommodating chamber is subjected to the action of the magnetic field, and the fresh-keeping effect of the food is improved. Meanwhile, cold air entering the barrel body firstly enters the air supply duct and cannot directly enter the accommodating compartment, so that the phenomenon that the temperature of food materials is too low due to direct blowing of the cold air can be avoided. In addition, the scheme creatively realizes that the temperature of cold air just entering the barrel body is very low, and the problem of local overcooling caused by cold air conduction of the cold air direction accommodating chamber is considered, so the scheme is characterized in that the magnetic field assembly and the heat insulation layer are arranged between the air supply air duct and the accommodating chamber, so that the cold air is conducted to the accommodating chamber through the magnetic field assembly, the heat insulation layer and the top wall of the inner barrel body, an appropriate amount of cold air can be transferred to the accommodating chamber, the whole accommodating chamber can be kept at an appropriate storage temperature, and the problem of local overcooling in the accommodating chamber can be effectively avoided.

Furthermore, the fresh-keeping storage container is beneficial to simplifying the structure by arranging the supporting ribs on the outer surface of the top side wall of the inner barrel body to support the magnetic field assembly so as to form the air heat insulation layer. In addition, a magnetic field is formed by using permanent magnet sheets and an electromagnetic coil. By varying the magnitude of the current in the electromagnetic coil, the electromagnetic coil can be caused to generate magnetic fields of different strengths. Therefore, the magnetic field generated by the permanent magnet sheet can be reinforced by the electromagnetic coil according to the requirement, so that the magnetic field in the accommodating chamber can be reinforced on the basis of the main magnetic field generated by the permanent magnet sheet according to the requirement, and the magnetic field intensity range is improved. And moreover, the supporting ribs can also play a role in fixing the electromagnetic coil on the basis of playing a role in supporting the permanent magnet sheet by utilizing the supporting ribs to form the placing grooves of the electromagnetic coil, so that the structure is facilitated to be simplified.

Further, the fresh-keeping storage container of the utility model defines the air duct between the magnetic field assembly and the air duct cover plate, that is, the magnetic field assembly becomes one of the air duct walls of the air duct. The magnetic field component can generate a magnetic field, so that the fresh-keeping effect of food materials is improved, and the magnetic field component can be used as an air duct wall to form an air duct, so that the structure of the fresh-keeping storage container is simplified.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic view of an angle of a fresh storage vessel according to one embodiment of the utility model;

FIG. 2 is a schematic view of a fresh storage vessel according to an embodiment of the utility model at another angle;

FIG. 3 is a first schematic cross-sectional view of a fresh storage vessel according to one embodiment of the utility model;

FIG. 4 is a second schematic cross-sectional view of a fresh storage vessel according to one embodiment of the utility model;

FIG. 5 is a schematic view of a tub in a fresh storage vessel according to one embodiment of the utility model;

FIG. 6 is a schematic view of a drawer in a fresh storage vessel at an angle according to one embodiment of the utility model;

FIG. 7 is a schematic exploded view of a tub in a fresh storage vessel according to one embodiment of the utility model;

FIG. 8 is a schematic enlarged view at A in FIG. 3;

FIG. 9 is a schematic view of an end plate fitting in a fresh storage vessel according to one embodiment of the utility model;

FIG. 10 is a schematic view of an end panel hood in a fresh storage vessel according to one embodiment of the utility model;

FIG. 11 is a schematic view of another angle of a drawer in a fresh storage vessel according to one embodiment of the utility model;

FIG. 12 is a partial schematic cross-sectional view of a permanent magnet sheet in a fresh storage vessel according to one embodiment of the utility model;

FIG. 13 is a schematic view of an assembly of magnetic field assemblies and magnetic permeable members in a fresh storage vessel according to one embodiment of the utility model;

FIG. 14 is a schematic top view of a duct cover plate in a fresh storage vessel according to one embodiment of the utility model;

FIG. 15 is a schematic view of an angle of a duct cover in a fresh storage vessel according to one embodiment of the utility model;

FIG. 16 is a schematic view of another angle of the duct cover in the fresh storage vessel according to one embodiment of the utility model;

FIG. 17 is a schematic view of the top wall of the outer shell of the fresh-keeping container according to one embodiment of the utility model at an angle;

FIG. 18 is a schematic view of another angle of the top wall of the outer shell in the fresh-keeping storage vessel according to one embodiment of the utility model;

FIG. 19 is a schematic cross-sectional view of a seal in a fresh storage vessel according to one embodiment of the utility model;

FIG. 20 is a schematic view of the seal and tub assembly in a fresh storage vessel according to one embodiment of the utility model;

fig. 21 is a schematic view of a refrigerator according to an embodiment of the present utility model;

Fig. 22 is a schematic view of a refrigerator according to an embodiment of the present utility model with a portion of a door removed;

FIG. 23 is a schematic view of an air path of a refrigerator supplying a flow of cooling air to a fresh food storage receptacle according to one embodiment of the utility model;

FIG. 24 is a schematic view of a fresh storage vessel according to another embodiment of the utility model;

fig. 25 is a first schematic view of a refrigerator according to another embodiment of the present utility model;

fig. 26 is a second schematic view of a refrigerator according to another embodiment of the present utility model.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model, and the some embodiments are intended to explain the technical principles of the present utility model and are not intended to limit the scope of the present utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present utility model, shall still fall within the scope of protection of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Further, it should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

As shown in fig. 1 to 6, in one embodiment, the fresh storage vessel includes a tub 100 and a drawer 200. The tub 100 defines a receiving compartment 101, and an air supply duct 10 is formed at a top sidewall of the tub 100. Specifically, a top sidewall of the tub 100 is formed with an interlayer space 102, and the supply air duct 10 is formed in the interlayer space 102.

A drawer 200 is drawably provided in the accommodating compartment 101, the drawer 200 defining a storage space 201. The front end plate 210 of the drawer 200 defines the ventilation duct 20. The cold air duct 30 is defined between the bottom of the drawer 200 and the inner surface of the bottom sidewall of the tub 100. The rear end of the tub 100 is formed with an air inlet 103 communicating with the air supply duct 10 so that cool air enters the air supply duct 10 from the outside of the fresh air storage container, and air flow from the air inlet 103 is guided to the air supply duct 20 through the air supply duct 10. The rear end of the tub 100 is further provided with an air return port 104.

The supply air duct 10, the over-air duct 20, and the cool air duct 30 together constitute an air path surrounding the storage space 201. The cold air flows along the air supply duct 10 and enters the air passing duct 20, flows along the air passing duct 20 and enters the cold air transferring duct 30, and finally flows out of the container from the air return port 104.

Referring to fig. 5, in particular, the tub 100 has a box shape as a whole and has a forward opening (i.e., an opening of the accommodating compartment 101). That is, the tub 100 has five sidewalls, i.e., a tub top sidewall, a tub bottom sidewall, a tub rear sidewall, a tub left sidewall, and a tub right sidewall, which together enclose a receiving compartment 101 having an opening.

As shown in fig. 1 to 6, the drawer 200 is drawably provided inside the tub 100 through the opening of the accommodating compartment 101. Drawer 200 includes a bottom panel, a rear panel, a left panel, a right panel, and a front end panel 210. In a state in which the drawer 200 is in the closed position, the front end plate 210 of the drawer 200 may seal the opening of the tub 100 such that the inside of the tub 100 forms a closed storage environment, that is, such that the storage space 201 of the drawer 200 is closed in the accommodating compartment 101, so that the drawer 200 and the tub 100 together define a fresh-keeping space. In a state that the drawer 200 is pulled out of the tub 100, the storage space 201 of the drawer 200 is exposed to the outside, and the stored objects can be taken and placed.

As shown in fig. 3 and 7 in combination, in particular, the tub 100 includes an outer case 110 and an inner tub 120, the outer case 110 is sleeved outside the inner tub 120, and a sandwich space 102 is formed between a top sidewall of the outer case 110 and a top sidewall of the inner tub 120.

The top plate of the outer shell can extend transversely and serve as the top plate of other storage drawers which are transversely arranged in parallel with the fresh-keeping storage container.

Referring to fig. 1 to 8, a top wall front end of the tub 100 is formed with an air supply hole 105 communicating with the air supply duct 10. The front end panel 210 of the drawer 200 includes a front panel 211 and an end panel wind housing 212. An end plate fan housing 212 is provided inside the panel 211, the end plate fan housing 212 protruding from the panel 211 toward the inside of the drawer 200, the end plate fan housing 212 defining the ventilation duct 20. The top end of the end plate fan housing 212 has a wind receiving hole 202. When the drawer 200 is in the closed position, the cool air introduced into the air supply duct 10 from the air inlet 103 can flow out of the air supply hole 105 and flow into the air passage 20 from the air receiving hole 202.

The air duct may be defined by the end plate cover and the panel together, or may be formed by the end plate cover alone (i.e., the end plate cover has a side wall that is bonded to the inner side of the panel). In addition, the end plate fan cover can be a part which is formed separately and then assembled on the drawer, or can be a part which is formed integrally with the drawer. And, the left side wall, the right side wall and the bottom side wall of the end plate fan housing can be directly formed by the left side wall, the right side wall and the bottom side wall of the drawer.

In other aspects of the present utility model, the cool air flowing out of the air supply duct may flow downward from the outer side of the front end plate of the drawer and then flow into the cool air transfer duct. Additionally, in other embodiments, the cooling air duct may be formed outside the bottom wall of the inner tub.

Referring to fig. 8 and 9, the tub 100 further includes an end plate fitting 130, wherein the end plate fitting 130 is provided at a front end of the tub 100, surrounds an opening of the accommodating compartment 101, and is assembled with the outer case 110 and the inner tub 120, thereby closing the supply air duct 10. Meanwhile, the air supply hole 105 is formed in the end plate fitting 130, so that the air flow in the air supply duct 10 can flow out of the air supply hole 105.

It should be noted that the end plate matching member 130 may not be provided to the tub 100. In this case, the air-blowing hole may be formed at a section bent from the front end of the outer case toward the inner case, or at a section bent from the front end of the inner case toward the outer case.

As shown in fig. 10 and 11, the bottom side wall of the end plate fan housing 212 is provided with four air outlet holes 203. Corresponding through holes are also formed in the bottom side wall of the drawer 200, so that air flow in the air passing duct 20 flows out of the air outlet 203 and flows into the air passing duct 30 through the through holes in the bottom side wall of the drawer 200.

Wherein, an air outlet sets up the left end at end plate fan housing 212 bottom side wall, and an air outlet sets up the right-hand member at end plate fan housing 212 bottom side wall, and an air outlet sets up the middle part at end plate fan housing 212 bottom side wall, and an air outlet sets up between the air outlet of end plate fan housing 212 one end of keeping away from the air intake and the air outlet in the middle.

Specifically, the end plate fan housing 212 is located at an end far from the central axis of the air inlet 103 in a transverse direction perpendicular to the central axis of the air inlet 103. That is, the end of the end plate fan housing 212 far from the air inlet 103 has a larger air outlet area relative to the end close to the air inlet 103, so that the bottom air outlet of the end plate fan housing 212 is more uniform.

It should be noted that, in other embodiments, the end plate fan housing may also be provided with an air outlet, for example, an elongated air outlet extending in the left-right direction. Two, three or five equal numbers of air outlets may also be provided.

Referring to fig. 4, 5 and 7, specifically, the rear sidewall of the inner tub 120 is formed at a position near the top end with the air outlet 106, and the longitudinally extending air outlet duct 40 is formed between the rear sidewall of the inner tub 120 and the rear sidewall of the outer case 110, and the top end of the air outlet duct 40 communicates with the air return 104. The cool air flows from the cool air transfer duct 30 to the rear end of the drawer 200, then flows upwards to the air passing hole 106, flows into the air passing duct 40 from the air passing hole 106, then flows to the air return opening 104 along the air passing duct 40, and finally flows out from the air return opening 104.

In summary, the air path inside the fresh-keeping storage container is configured to: the air flow enters the rear end of the air supply duct 10 defined in the top wall of the tub 100 from the air inlet 103, and then flows through the air supply duct 10 from the rear to the front. At the front end of the supply duct 10, air flows through the supply hole 105 and the air receiving hole 202 into the top end of the wind passing duct 20 defined in the front end plate 210 of the drawer 200, and then flows through the wind passing duct 20 from top to bottom. At the bottom end of the air passing duct 20, air flows into the cool air passing duct 30 between the bottom plate of the drawer 200 and the bottom wall of the tub 100, and then flows through the cool air passing duct 30 from front to back. At the connection position of the rear end of the bottom plate of the drawer 200 and the rear plate of the drawer 200 (i.e., the rear end of the cooling air duct 30), air flow enters the gap between the rear plate of the drawer 200 and the rear wall of the tub 100. And then flows from the air outlet 106 into the air outlet duct 40, and the air flow finally reaches the air return opening 104 along the air outlet duct 40.

The internal air path of the fresh-keeping storage container surrounds the whole fresh-keeping storage container for a circle, and can realize sufficient heat exchange under the condition that the fresh-keeping storage space is not in direct contact with stored objects, so that the fresh-keeping storage container is uniformly refrigerated and cooled.

It should be noted that the cooling air duct at the bottom of the drawer may be formed at the outer side of the bottom side wall of the inner barrel. And, also can not set up the vertical wind channel that walks, cold wind directly flows away from the rear end in the cold wind channel that passes.

Referring to fig. 3, 4 and 12, the fresh storage vessel includes a magnetic field assembly 300, the magnetic field assembly 300 being disposed outside the top sidewall of the inner tub 120, and the magnetic field assembly 300 being disposed between the supply air duct 10 and the accommodating compartment 101. A heat insulating layer 50 is formed between the air duct 10 and the accommodating chamber 101.

Referring to fig. 7 again, specifically, the thermal insulation layer 50 is formed on a side of the magnetic field assembly 300 facing away from the air supply duct 10, and the thermal insulation layer 50 is an air thermal insulation layer. The outer surface of the top side wall of the inner tub 120 is provided with supporting ribs 121, and the supporting ribs 121 support the magnetic field assembly 300, so that the magnetic field assembly 300 and the bottom wall of the interlayer space 102 form an air heat insulation layer.

Specifically, the supply air duct 10, the magnetic field assembly 300, and the thermal insulation layer 50 are all disposed in the interlayer space 102. The top wall of the inner tub 120 is provided with a raised support rib 121. When the magnetic field assembly 300 is assembled in place in the tub 100, the bottom surface of the magnetic field assembly 300 abuts against the top ends of the support ribs 121. In turn, the magnetic field assembly 300 is supported by the support bars 121. Thus, a space, i.e., an air insulation layer, is formed between the magnetic field assembly 300 and the top wall of the inner tub 120.

Referring to fig. 13, further, the magnetic field assembly 300 includes a shim plate 310 and a source magnet 320. The source magnet 320 is used to generate a magnetic field. The shim plate 310 is disposed on a side of the source magnet 320 facing away from the receiving chamber 101.

The shim plate 310 is made of a magnetically conductive material, such as silicon steel. The source magnetic unit 320 has a structure composed of a permanent magnet 321 and an electromagnetic coil 322. The permanent magnet sheet 321 may be made of a permanent magnet material having a certain flexibility, for example, a rubber magnet sheet having a flexibility made by compounding bonded ferrite magnetic powder with synthetic rubber and a calendaring process may be used. The thickness of the permanent magnet sheet 321 is greater than 2 mm, and may be, for example, 3 mm, 3.2 mm, 3.5 mm, etc. Preferably, the permanent magnet sheet 321 has a thickness of 3.2 mm. The permanent magnet sheet 321 is disposed at a side of the magnetic homogenizing plate 310 facing the accommodating compartment 101, and the electromagnetic coil 322 is disposed at a side of the permanent magnet sheet 321 facing the accommodating compartment 101. That is, the shim plate 310, the permanent magnet pieces 321, and the electromagnetic coil 322 are arranged in a stacked manner from top to bottom.

Further, as shown in fig. 7, the supporting ribs 121 enclose a placement groove, the electromagnetic coil 322 is disposed in the placement groove, and the supporting ribs 121 support the permanent magnet sheet 321. Specifically, the electromagnetic coil 322 is circular. Two circular supporting ribs 121 are formed on the top wall of the inner tub 120, wherein one circular supporting rib 121 is located in the other circular supporting rib 121, so that a circular placing groove is formed between the two circular supporting ribs 121, and the electromagnetic coil 322 can be placed in the circular placing groove.

One of the requirements for a long-term fresh-keeping of the fresh-keeping storage container is to maintain the temperature in the compartment 101 within a suitable fresh-keeping temperature range, and the refrigeration process will not be too low or too high, especially to ensure that the temperature of each region of the compartment 101 is uniform. In some embodiments, the freshness temperature range may be set at greater than-3 degrees celsius and less than 0 degrees celsius. The stored articles are not only prevented from being frozen, but also can be kept at the preservation temperature below zero. The preservation temperature range can be set by a person skilled in the art according to the specific state of the stored object, and the specific numerical range is only illustrative.

Another requirement for a long-term fresh-keeping storage of fresh-keeping storage containers is the application of a magnetic field of suitable strength within the holding compartment 101. Through intensive research on the preservation effect, the magnetic field parameters of the preservation storage container in this embodiment are preferentially configured as the effective magnetic field intensity range: 10-100GS (1-10 mT), further can be set to 20-80GS, still further can be set to 40GS-60GS, e.g. 10GS, 20GS, 40GS, 60GS, 80GS, 100GS, etc., effective spacing range of magnetic fields: 60-240mm, effective spacing range of magnetic field: 60-240mm, i.e. the magnetic field may reach the above strength requirements in a distance range of 60mm to 240mm from the magnetic source component.

In the scheme of the present embodiment, the air supply duct 10 is disposed outside the top sidewall of the inner tub 120, and the magnetic field assembly 300 and the thermal insulation layer 50 are disposed between the air supply duct 10 and the accommodating compartment 101. The magnetic field assembly 300 generates a magnetic field in the accommodating chamber 101, so that food in the accommodating chamber 101 is subjected to the magnetic field, and the fresh-keeping effect of the food is improved. Meanwhile, the cold air entering the barrel body 100 firstly enters the air supply duct 10 and cannot directly enter the accommodating chamber 101, so that the phenomenon that the temperature of the food material is too low due to direct blowing of the cold air can be avoided. In addition, the present solution creatively recognizes that the temperature of the cold air just entering the tub 100 is very low, and considers the problem of local overcooling caused by the conduction of the cold air to the accommodating compartment 101, so the present solution effectively avoids the problem of local overcooling in the accommodating compartment 101 by providing the magnetic field assembly 300 and the thermal insulation layer 50 between the air supply duct 10 and the accommodating compartment 101, so that the cold air is conducted to the accommodating compartment 101 through the magnetic field assembly 300, the thermal insulation layer 50 and the top wall of the inner tub 120, thereby transmitting a proper amount of cold air to the accommodating compartment 101, which is helpful for keeping a proper storage temperature in the entire accommodating compartment 101.

Further, the supporting ribs 121 are provided on the bottom wall of the interlayer space 102 to support the magnetic field assembly 300, so as to form an air insulating layer, which is beneficial to simplifying the structure.

Further, the permanent magnet sheet 321 is made of a composite material of ferrite magnetic powder and synthetic rubber, and the thickness of the permanent magnet sheet 321 is made to be larger than 2mm, so that on the basis that the permanent magnet sheet 321 has enough source magnetism to generate a magnetic field meeting requirements in the accommodating chamber 101, the permanent magnet sheet 321 has a proper heat conduction effect, proper cold quantity is ensured to be conducted to the accommodating chamber 101 by cold air through the even magnetic plate 310, the permanent magnet sheet 321 and the side wall of the inner barrel 120, the problem that overcooling occurs in the accommodating chamber 101 is avoided, the required range of the magnetic field and the temperature in the accommodating chamber 101 is maintained, and the fresh-keeping effect on food materials is ensured.

In addition, by forming a magnetic field using the permanent magnet pieces 321 and the electromagnetic coil 322, the electromagnetic coil 322 can be caused to generate magnetic fields of different strengths by varying the magnitude of the current in the electromagnetic coil 322. Therefore, the magnetic field generated by the permanent magnet piece 321 can be reinforced by the electromagnetic coil 322 according to the need, so that the magnetic field in the accommodating chamber 101 can be reinforced on the basis of the main magnetic field generated by the permanent magnet piece 321 according to the need, and the magnetic field intensity range is improved. In addition, the supporting ribs 121 can fix the electromagnetic coil 322 on the basis of supporting the permanent magnet sheet 321 by forming the placing grooves of the electromagnetic coil 322 by the supporting ribs 121, which is beneficial to simplifying the structure.

In addition, by combining the internal air path of the fresh-keeping storage container, cold air exchanges heat step by step in the flowing process, and the temperature of the cold air rises gradually. The air flow temperature of the air supply duct 10 is the lowest, but because the cold air must be conducted to the accommodating chamber 101 through the magnetic field assembly 300 and the thermal insulation layer 50, that is, the cold air is transferred most difficult, a proper amount of cold can be transferred to the accommodating chamber 101 in combination, and local overcooling in the accommodating chamber 101 can be effectively avoided. In the air passing duct 20, the cooling difficulty of the drawer end plate is easier than that of the air supplying duct 10, but the air temperature is higher, so that the local overcooling in the accommodating compartment 101 can be effectively avoided. The gap between the drawer bottom plate and the bottom wall of the barrel body is used as the cold air transfer channel 30, the cold energy exchanges heat with the drawer bottom plate, the cold energy is most easily transferred, but the air temperature is also highest, so that the combination of the two components can effectively avoid local overcooling in the accommodating compartment 101. That is, as the temperature of the air flow increases, the heat exchange difficulty of each air path section is relatively easier, so that the temperature of each position of the fresh-keeping storage space is generally equivalent, and the problem of local overcooling is well avoided.

It should be noted that, in other embodiments, the source magnetic member may be a permanent magnet sheet alone, or an electromagnetic coil alone.

It should be noted that, in other embodiments, the support ribs may also support the magnetic levitation plate, for example, the magnetic levitation plate is provided with grooves, and the permanent magnet sheets are disposed in the grooves, and the depth of the grooves is greater than the thickness of the permanent magnet sheets, so that the support ribs support the magnetic levitation plate, and the permanent magnet sheets are adsorbed on the magnetic levitation plate. Of course, the depth of the groove can be smaller than the thickness of the permanent magnet sheet, so that the support rib supports the permanent magnet sheet. Or in the case that the source magnetic part is only an electromagnetic coil, the support ribs also support the magnetic homogenizing plate.

It should be noted that, in other embodiments, other components may be disposed between the thermal insulation layer and the magnetic field assembly, that is, the thermal insulation layer is not directly in contact with the magnetic field assembly. In addition, in other embodiments, a thermal barrier may also be formed on the side of the magnetic field assembly facing away from the containment compartment.

In other embodiments, the outer case may not be provided. That is, the air supply duct may be provided outside the top sidewall of the inner tub, and in an alternative scheme, the air supply duct may be formed between the inner tub and the inner wall of the refrigerator case. However, the provision of the outer casing helps to protect the components such as the magnetic field assembly outside the inner tub.

Preferably, the thickness of the air insulating layer is set to 1 mm or more and 3 mm or less, and may be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, or the like, for example. By the arrangement, the air heat insulation layer keeps proper heat conduction effect, the temperature of the accommodating chamber 101 is kept at a reasonable temperature, the temperature is not too high or too low, and the air heat insulation layer is prevented from occupying a large space.

Referring to fig. 3 and 13, preferably, the drawer 200 in the closed position causes the projection of the storage space 201 to fall within the magnetic gradient 310 on the plane of the side of the magnetic gradient 310 facing the drawer 200. That is, in a state where the drawer 200 is in the closed position, the magnetic homogenizing plate 310 covers the entire storage space 201, thereby securing a magnetic homogenizing effect on the entire storage space 201.

Referring to fig. 3, the magnetic field assembly 300 forms one duct wall of the supply air duct 10. Specifically, the fresh-keeping storage container includes an air duct cover plate 400, the air duct cover plate 400 is disposed in the interlayer space 102, the air duct cover plate 400 is disposed on a side of the magnetic field assembly 300 facing away from the accommodating compartment 102, and an air supply duct 10 is formed on a side of the air duct cover plate 400 opposite to the magnetic field assembly 300. Specifically, the magnetic field assembly 300 and the duct cover 400 form a complete continuous air supply duct 10, in other words, the air supply duct 10 having air flow inlets and outlets only at both ends in the extending direction thereof is formed between the magnetic field assembly 300 and the duct cover 400. In the extending direction of the whole air supply duct 10, the cold air entering the air supply duct 10 can flow out of the air supply duct 10 only through the whole air supply duct 10, and the cold air in the air supply duct 10 can only contact with the magnetic field assembly 300.

Specifically, the shim plate 310 and the air duct cover 400 define an air duct.

By defining a wind tunnel between the magnetic field assembly 300 and the wind tunnel cover 400, that is, the magnetic field assembly 300 becomes one of the wind tunnel walls of the wind tunnel. The magnetic field assembly 300 can generate a magnetic field, so that the fresh-keeping effect of food materials is improved, and an air duct can be formed as an air duct wall, so that the structure of the fresh-keeping storage container is simplified.

In addition, the shim plate 310 and the air duct cover 400 define an air duct. In the process of cold air flowing through the air duct, the magnetic homogenizing plate 310 can play a role in homogenizing temperature, and is beneficial to uniformly cooling in the accommodating compartment 101. Further, since the heat conduction effect of the shim plate 310 is relatively good, a problem of local overcooling caused by the cold air conducting the cold to the accommodating compartment 101 is considered. The present embodiment adopts the combination scheme of the permanent magnet sheet 321 and the uniform magnetic sheet 310, because the heat conduction effect of the permanent magnet sheet 321 is poor, and the effect of the heat insulation layer 50 is added, the problem of overcooling of the accommodating chamber 101 can be avoided under the condition of setting the uniform magnetic sheet 310, and the temperature uniformity in the accommodating chamber 101 can be improved, thereby achieving unexpected effects.

It should be noted that, in other embodiments, other components may be additionally disposed on the magnetic field assembly to form the air supply duct.

As shown in fig. 3 and 14 to 15, the air duct cover 400 is configured to form an air duct recess 401 on a side facing the magnetic field assembly 300 and away from the magnetic field assembly 300, the air duct recess 401 extends from a rear end to a front end of the air duct cover 400, and a structural interface 402 is defined at a rear end of the air duct recess 401, and the structural interface 402 is configured to communicate with the air inlet 103. The air path recess 401 and the magnetic field assembly 300 define the supply air duct 10.

Specifically, the duct cover 400 has a certain thickness facing the inward wind path recess 401 of the magnetic field assembly 300 and penetrating through the front and rear ends of the duct cover 400. When the duct cover 400 is assembled with the magnetic field assembly 300 in place, the portions of the duct cover 400 on either side of the air path recess 401 contact the magnetic field assembly 300 to form a seal. Also, since the air path recess 401 penetrates opposite ends of the air path cover 400, the air path recess 401 and the magnetic field assembly form the supply air duct 10 extending from the rear end to the front end of the air path cover 400.

By forming the wind path recess 401 in the wind path cover 400, the wind path cover 400 can form three sidewalls of the wind path, and the magnetic field assembly 300 forms the other sidewall of the wind path. Compared with the two opposite side walls of the air duct formed by the air duct cover 400 and the magnetic field assembly 300 and the other two side walls of the air duct formed by other components, the air supply air duct 10 is formed by only using the two components of the air duct cover 400 and the magnetic field assembly 300, thereby further simplifying the structure. Moreover, only the air duct cover plate 400 and the magnetic field assembly 300 need to be sealed, so that the sealing is convenient, and the sealing effect is better.

The sealing between the magnetic field assembly and the air duct cover plate can be direct contact sealing between the magnetic field assembly and the air duct cover plate, or indirect contact sealing through two sealing strips arranged between the magnetic field assembly and the air duct cover plate, wherein the two sealing strips are arranged on two sides of the air supply air duct.

As shown in fig. 14 to 15, three flow dividing ribs 410 are provided in the air supply duct 10, and the flow dividing ribs 410 extend in the front-rear direction of the air supply duct 10 to divide the air supply duct 10 into a plurality of air passages distributed in the left-right direction.

Specifically, three flow dividing ribs 410 are distributed in the left-right direction of the air supply duct 10, dividing the air supply duct 10 into four air passages. Specifically, the duct cover 400 is made of a heat insulating material, such as a foam material. Meanwhile, the shunt rib 410 is formed by protruding a side of the air duct cover 400 facing the magnetic field assembly 300 toward the magnetic field assembly 300. That is, the diverting rib 410 is integrally formed with the duct cover 400.

By providing the flow dividing rib 410 in the air supply duct 10, the air flow entering the air supply duct 10 can be dispersed to the left and right sides, so that the air flow can be distributed more uniformly in the air supply duct 10. And, the diverting rib 410 and the air duct cover plate 400 are integrally formed, so that the air duct cover plate 400 is well supported, and the structural strength of the air duct cover plate 400 is improved.

It should be noted that in other embodiments, the number of the flow dividing ribs may be one, two, four or more. Or the flow dividing ribs are not required.

As further shown in fig. 1 and 16 to 18, the rear top end of the tub 100 has an inclined section 111, and the air intake 103 is formed in the inclined section 111. The inclined direction of the inclined section 111 is directed from the top to the bottom in the front-to-rear direction of the tub 100. One end of the duct cover 400, where the construction interface 402 is formed, is formed with an inclined surface 420 that mates with the inclined section 111, and the construction interface 402 is formed at the inclined surface 420. The inclined surface 420 conforms to the inner surface of the inclined section 111 such that the build interface 402 is aligned with the intake 103.

Specifically, an inclined section 111 is formed on the top wall of the outer case 110 or the outer top wall of the tub 100. In a state where the duct cover 400 is assembled with the outer case 110 in place, the duct cover 400 is fitted to the inner surface of the top wall of the outer case 110, including the fit between the inclined surface 420 of the duct cover 400 and the inner surface of the inclined section 111. That is, in a state where the duct cover 400 is assembled with the outer case 110 in place, the inclined direction of the inclined surface 420 of the duct cover 400 is identical to the inclined direction of the inclined section 111. The interface 402 is configured to align with the air inlet 103 such that cool air from outside the fresh container can enter the supply air duct 10 through the air inlet 103.

By providing the inclined section 111 in the tub 100, the air intake 103 is formed in the inclined section 111, thereby facilitating the air supply to the air supply duct 10. And the section of the barrel body 100 provided with the air inlet 103 is in longitudinal assembly relation with the air duct cover plate 400, so that the barrel body 100 and the air duct cover plate 400 are conveniently pressed.

Referring to fig. 16 to 18, the outer case of the tub 100 is formed with a longitudinal extension 112 at the rear end of the inclined section 111, the duct cover 400 is formed with a longitudinal extension 430 engaged with the longitudinal extension 112, and the duct cover 400 and the tub 100 are assembled in place such that the longitudinal extension 430 is adhered to the inner surface of the longitudinal extension 112.

Specifically, the longitudinally extending section 112 is also formed at the top side wall of the outer housing 110, and has no rear end of the inclined section 111 and meets the inclined section 111. In the assembled state of the duct cover 400 and the outer housing 110, the duct cover 400 is in engagement with the inner surface of the top wall of the outer housing 110, including engagement between the longitudinally extending surface 430 of the duct cover 400 and the inner surface of the longitudinally extending section 112. The longitudinally extending surface 430 cooperates with the longitudinally extending segment 112 to locate the assembly of the duct cover 400 with the outer housing 110.

Referring to fig. 16 to 18, further, a positioning groove 403 is formed on one side of the duct cover 400, and a positioning rib 113 is formed on the inner side of the top wall of the outer case 110. The positioning groove 403 cooperates with the positioning rib 113 to perform a positioning function for assembling the duct cover 400 and the outer case 110.

As shown in fig. 3, 4 and 13, further, the fresh storage vessel is provided with two sets of magnetic field assemblies 300. Two sets of magnetic field assemblies 300 are disposed in the top and bottom sidewalls of the tub 100, respectively. And, the fresh-keeping storage container further comprises two magnetic conduction pieces 500. The two magnetic conductive members 500 are disposed on the left and right sidewalls of the tub 100, respectively. The two ends of the magnetic conductive member 500 are respectively connected with the magnetic homogenizing plates 310 in the two magnetic field assemblies 300, so that the two magnetic field assemblies 300 and the two magnetic conductive members 500 form an annular magnetic field loop together, the magnetic field utilization rate is improved, and the influence of the magnetic field on external components is reduced.

Further, the ratio of the thermal conductivity to the thickness of the thermal insulation layer 50 is 5 or more and 100 or less, for example, 5, 10, 20, 30, 40, 50, 75, 89, 100 may be mentioned. Wherein the heat conductivity coefficient is in W/m.degree, and the thickness is in m. Preferably, the ratio of the thermal conductivity coefficient of the thermal insulation layer 50 to the thickness is 20 to 80. For example, 20, 30, 40, 50, 60, 70, 80.

As shown in fig. 5 and 8, further, the fresh storage vessel also includes a seal 600. The sealing member 600 is provided inside the top wall of the accommodating compartment 101, and the sealing member 600 extends in the left-right direction of the tub 100. The drawer 200 in the closed position has the inner side of the panel 211 abutted against the front end of the tub 100, and the side of the end plate louver 212 facing the inside of the drawer 200 abutted against the seal 600, and the air supply hole 105 and the air receiving hole 202 are located between the contact position of the panel 211 with the tub 100 and the contact position with the seal 600.

Specifically, when the drawer 200 is in the closed position, the inner side of the panel 211 and the front end of the end plate fitting 130 are abutted, thereby functioning to close the accommodating chamber 101. The seal 600 and the end plate wind cap 212 abut and act to reduce the flow of cold wind into the storage space 201. In other words, the panel 211, the end plate mating member 130 and the sealing member 600 together define a relatively closed passageway between the small section of the air supply hole 105 and the air receiving hole 202, so that cold air can flow into the air passing duct 20 as much as possible, thereby reducing air leakage into the storage space 201 and avoiding the temperature of the stored articles from falling too rapidly.

As shown in conjunction with fig. 19 and 20, in particular, the seal 600 includes a support portion 610 and a seal portion 620. The supporting part 610 is used to connect with the tub 100. The sealing portion 620 has one end connected to the supporting portion 610 and the other end adapted to abut against the end plate fan housing 212. The supporting part 610 is made of a relatively hard material (e.g., PP (polypropylene) material) so as to be firmly coupled with the tub 100. The seal 620 is made of a softer material (e.g., TPE (Thermo Plastic Elastomer, thermoplastic elastomer) material, rubber, etc.) to facilitate deformation in contact with the endplate bellows 212 to achieve a better seal.

Referring to fig. 19 and 20, the supporting portion 610 is formed with a coupling groove 601, and the tub 100 is provided with a coupling rib 140. The fitting rib 140 is inserted into the fitting groove 601 to connect the sealing member 600 with the tub 100. Specifically, the cross section of the support portion 610 is generally "U" shaped, and the engagement groove 601 is a "U" shaped recess.

By adopting the assembly mode of the matching groove 601 and the matching rib 140, the assembly process of the sealing element 600 and the barrel body 100 is more convenient, and the sealing element 600 can be detachably connected with the barrel body 100, so that the sealing element 600 is convenient to replace.

It should be noted that, in other embodiments, the sealing member 600 may be assembled to the tub 100 by an adhesive, a screw fastening, or the like.

Referring to fig. 3 and 19 to 20, one end of the sealing portion 620 is in contact with a notch end of one side wall of the fitting groove 601, and the other end extends in the opening direction of the fitting groove 601. Accordingly, correspondingly, the fitting rib 140 provided on the tub 100 is formed to extend forward and backward. In other words, the engagement groove 601 of the supporting part 610 is caught on the engagement rib 140 in the rear-to-front direction of the tub 100. Alternatively, after the sealing member 600 is assembled with the tub 100 in place, the opening of the fitting groove 601 is oriented to coincide with the opening of the accommodating compartment 101.

Because the sealing part 620 receives the pressure of the end plate fan housing 212 directed to the rear of the tub body 100 in the contact process of the end plate fan housing 212 and the sealing member 600, one end of the sealing part 620 is connected with the notch end of one side wall of the fitting groove 601, and the other end extends toward the opening direction of the fitting groove 601, so that the sealing part 620 can transmit the pressure to the supporting part 610 when receiving the pressure, and then the fitting groove 601 can offset part of the pressure in a slight expansion deformation manner, thereby reducing the pressure burden of the joint of the sealing part 620 and the supporting part 610, and being beneficial to improving the service life of the sealing member 600.

In other embodiments, one end of the sealing portion may be connected to the outside of the groove bottom wall of the mating groove, and the other end may extend in a direction away from the opening of the mating groove. In addition, the assembly direction of the matching groove and the matching rib can be along the top-bottom direction of the barrel body.

As shown in fig. 19 and 20, the first rib 611 is provided on the inner side of the side wall of the fitting groove 601 which is in contact with the sealing portion 620. The engaging rib 140 is provided with a catching rib 141 engaged with the first protruding rib 611. The seal 600 and the mating rib 140 are assembled in place such that the catch rib 141 is located on the side of the first bead 611 remote from the notch of the mating groove 601. The first rib 611 and the clamping rib 141 are provided with mutually matched guide surfaces.

Specifically, the catching rib 141 is formed by the bottom side of the fitting rib 140 protruding downward, and the first protruding rib 611 is formed by the inner side of the side wall of the fitting groove 601 that meets the sealing part 620 protruding toward the side wall of the other fitting groove 601. During the assembly of the sealing member 600 and the coupling rib 140, the side of the first protruding rib 611 provided with the guide surface contacts the side of the clamping rib 141 provided with the guide surface, specifically, the side of the first protruding rib 611 near the notch of the coupling groove 601 contacts the clamping rib 141. As the sealing member 600 continues to be assembled with the coupling rib 140, that is, as the coupling rib 140 is continuously inserted into the coupling groove 601, the first convex rib 611 passes over the catching rib 141 under the guide of the guide surface and then is restored under its own elastic action. Then, the catching rib 141 is located at a side of the first protruding rib 611 away from the notch of the fitting groove 601, and the catching rib 141 overlaps with the first protruding rib 611 in the front-rear direction of the tub 100.

By providing the first rib 611 in the fitting groove 601, the engaging rib 141 fitted to the first rib 611 is provided in the fitting rib 140. After the sealing member 600 and the coupling rib 140 are assembled in place, the catching rib 141 is located at a side of the first protruding rib 611 away from the notch of the coupling groove 601, so that the catching rib 141 and the first protruding rib 611 cooperate with each other to function to prevent the sealing member 600 from being separated from the coupling rib 140.

As shown in fig. 19 and 20, the inner side of the side wall of the fitting groove 601, which is in contact with the sealing portion 620, is provided with a second rib 612, and the second rib 612 is located on the side of the first rib 611, which is away from the notch of the fitting groove 601. The seal 600 and the mating bead 140 are assembled in place such that the catch bead 141 is located between the first bead 611 and the second bead 612 and such that the tip of the second bead 612 abuts the mating bead 140.

Similarly, the second rib 612 is formed by protruding the inner side of the side wall of the fitting groove 601 that meets the sealing portion 620 toward the side wall of the other fitting groove 601. The top of the second rib 612 is curved to reduce interference with the mating rib 140 during assembly of the seal 600.

Through setting up the second protruding muscle 612 at the cooperation groove 601, the sealing member 600 and the cooperation muscle 140 of assembly target in place make the top butt cooperation muscle 140 of second protruding muscle 612 to can play the reinforcement effect to the assembly of sealing member 600 and cooperation muscle 140, improve structural stability.

Wherein, the protruding height of the first protruding rib 611 and the second protruding rib 612 is the same, and is less than or equal to one fourth of the width (the distance between two groove side walls) of the mating groove 601.

As shown in fig. 19 and 20, the inner side of the sidewall of the fitting groove 601 opposite to the first rib 611 is provided with a third rib 613. The third protruding rib 613 and the fitting rib 140 are provided with mutually fitting guide surfaces, and the seal 600 and the fitting rib 140 fitted in place are such that the tip of the third protruding rib 613 abuts the fitting rib 140.

Specifically, the third beads 613 are formed by protruding from the inner side of the sidewall of the fitting groove 601 opposite to the first beads 611 toward the sidewall where the first beads 611 are located, and the third beads 613 are formed at the notched ends of the sidewall. A guide surface is formed on a side of the third bead 613 near the notch. In addition, a guide surface on the fitting rib 140 is formed on the top side of the protruding end of the fitting rib 140. The third beads 613 can act as guides during the assembly of the sealing member 600 and the coupling beads 140. After the seal 600 and the fitting rib 140 are assembled in place, the tip of the third protruding rib 613, that is, abutting the fitting rib 140, can function to reinforce the assembly of the seal 600 and the fitting rib 140.

As shown in fig. 8 and 19, further, the sealing part 620 is a flexible fin, the sealing part 620 is curved, and a side of the sealing part 620 near the supporting part 610 is a curved convex side. Specifically, with reference to the end of the sealing portion 620 that is in contact with the supporting portion 610, the curved sealing portion 620 is entirely located on the side of the side wall that is in contact that is away from the mating groove 601. The other end of the sealing portion 620 is spaced apart from the end of the sealing portion 620 contacting the supporting portion 610 in both the lateral and longitudinal directions. And the two ends are bent. The side of the sealing part 620 near the supporting part 610 is a curved convex side, in other words, a concave side of the curved sealing part 620 is seen from the view of the mating groove 601 from the front of the notch of the mating groove 601.

By providing the sealing portion 620 as a curved flexible fin, the side of the sealing portion 620 near the support portion 610 is a curved convex side. During the contact of the sealing portion 620 with the end plate fan housing 212, the end of the sealing portion 620 away from the support portion 610 contacts the end plate fan housing 212. As drawer 200 continues to close, seal 620 is forced by endplate bellows 212 because of the special configuration of seal 620, such that seal 620 has two points of easy deformation, one at the junction of seal 620 and support 610 and the other at the middle of seal 620. On the one hand, the sealing part 620 is easier to deform to buffer the pressure applied, so that the service life of the sealing part 620 is prolonged. On the other hand, the sealing portion 620 can maintain the bending direction of the base in the process of being extruded, and only the bending degree is increased, so that the guiding direction of the sealing portion 620 to the cold air is maintained towards the side where the air receiving hole 202 is located, and the smooth flow of the air flow is facilitated.

In other embodiments, the sealing portion may be an elastic block.

Further, as shown in fig. 19, the curvature of the sealing portion 620 decreases in the extending direction from one end of the sealing portion 620 in contact with the supporting portion 610 to the other end. That is, the degree of bending of the sealing portion 620 becomes gradually gentle from one end of the sealing portion 620 contacting the supporting portion 610 toward the other end. It is advantageous to ensure the contact effect of the end of the sealing part 620 away from the supporting part 610 with the end plate fan housing 212.

Further, as shown in fig. 19, in the extending direction from one end of the sealing part 620 contacting the supporting part 610 to the other end, the thickness of the middle section of the sealing part 620 is larger than the thickness of both ends. Thereby making both ends of the sealing part 620 more easily deformed, reducing feedback resistance of the sealing member 600, and improving user experience.

Preferably, the thickness variation from the end of the sealing portion 620 to the middle section is 0.2mm to 1 mm, i.e., the end thickness is 0.2mm and the middle section thickness is 1 mm.

Further, the ratio of the longitudinal distance from the end of the sealing portion 620 away from the supporting portion 610 to the thickest portion of the sealing portion 620 to the longitudinal distance from the end of the sealing portion 620 connected to the supporting portion 610 to the other end (i.e., the distance H in the drawing) is one-third or more and one-half or less. For example, it may be one third, two fifths, one half, etc.

And, a ratio of a lateral distance from an end of the sealing part 620 connected to the supporting part 610 to a thickest portion of the sealing part 620 to a lateral distance from an end of the sealing part 620 connected to the supporting part 610 to the other end (i.e., a distance S in the drawing) is one-seventh or more and one-third or less. For example, it may be one seventh, one sixth, one fourth, one third, etc.

Through the above-mentioned construction, be favorable to making the one end that sealing portion 620 kept away from supporting part 610 produce upward deformation more easily under the extrusion of drawer 200 for sealing portion 620 is receiving the in-process of extrusion, can keep the crooked direction of basis, and just crooked degree can increase, then makes sealing portion 620 keep the direction of guiding cold wind to the one side that is located towards air receiving hole 202, the smooth and easy flow of air current of being convenient for.

Further, as shown in fig. 19, a notch 602 is provided at the junction of the sealing portion 620 and the supporting portion 610, and the notch 602 is located at a side of the sealing portion 620 facing the bottom of the mating groove 601. Specifically, the cross-sectional shape of the notch 602 is arcuate. By providing a notch at the junction of the sealing portion 620 and the supporting portion 610, the junction of the sealing portion 620 and the supporting portion 610 is more easily deformed.

The minimum thickness of the notch 602 is 0.2 mm or more and 0.4 mm or less. And is one-fourth to one-half, including one-fourth and one-half, of the maximum thickness of the sealing portion 620.

As shown in fig. 19, the longitudinal distance from one end of the sealing portion 620, which is in contact with the supporting portion 610, to the other end is 5mm or more and 15mm or less. The lateral distance from one end of the sealing portion 620, which is in contact with the supporting portion 610, to the other end is 5mm or more and 20 mm or less. As shown in the drawing, the longitudinal distance H from one end to the other end of the sealing portion 620 to the supporting portion 610, that is, H is 5mm or more and 15mm or less, and may be, for example, 5mm, 8mm, 10 mm, 12 mm, 15mm, or the like. Preferably, the longitudinal distance from one end of the sealing part 620, which is connected to the supporting part 610, to the other end is 8mm or more and 12 mm or less.

Referring to fig. 19, the lateral distance S from one end to the other end of the sealing portion 620, where the sealing portion is connected to the supporting portion 610, that is, S is 5mm or more and 20 mm or less, and may be, for example, 5mm, 6 mm, 10 mm, 13 mm, 15 mm, 20 mm, or the like. Preferably, the lateral distance from one end of the sealing part 620, which is connected to the supporting part 610, to the other end is 10 mm or more and 15 mm or less.

If the extension length of the sealing part 620 is too small, the deformation effect is bad, affecting the sealing effect. And the extension length of the sealing part 620 is too large, which also causes waste.

Referring to fig. 8, when the drawer 200 is in the closed position, the end of the sealing portion 620 that is in contact with the supporting portion 610 is spaced from the lowest position of the top wall of the end plate fan housing 212 by a distance of 5 mm or more and 10 mm or less. For example, it may be 5 mm, 7 mm, 8 mm, 10 mm. Ensuring that the end of the sealing part 620 that is connected to the supporting part 610 has a certain longitudinal distance from the top end of the end plate fan housing 212 can reduce the deformation resistance and ensure the sealing effect.

As shown in fig. 8, the end plate fan housing 212 is provided with a boss 2121 on a side facing the inside of the drawer 200. The boss 2121 extends in the left-right direction of the drawer 200, and the top surface position of the boss 2121 in the closed position of the drawer 200 is lower than or flush with the lowest end position of the seal 600 in the natural state. Specifically, the top surface of boss 2121 and the side of end plate housing 212 facing the inside of drawer 200 form an angular surface. When the sealing portion 620 is bent, a portion thereof contacts the surface of the end plate fan housing 212 and a portion thereof contacts the top surface of the boss 2121, thereby forming a cavity together with the angular surface, which is advantageous in improving the sealing effect.

Although not shown in the drawings, in one embodiment, the thermal insulation layer is a cold storage structure, specifically, the cold storage structure is a plate shape, which has a cavity containing a cold storage agent therein. Or directly made of cold accumulation materials. The cold accumulation structure absorbs and stores cold from the air supply duct side and slowly releases the cold to the accommodating chamber side, thereby helping to maintain the temperature of the accommodating chamber.

Although not shown, in one embodiment, the thermal insulation layer may be a plate made of other materials with certain thermal conductivity, such as a temperature equalizing plate, a plastic plate, etc. Wherein, the samming board can also play in addition and hold the effect of the temperature homogeneity of room. The cost of the plastic plate is low.

As shown in fig. 21 and 22, in one embodiment, the refrigerator includes a case 1 and the fresh storage container 2 of any of the above embodiments. The box body 1 defines a storage compartment, and the fresh-keeping storage container 2 is arranged in the storage compartment.

The storage compartments of a refrigerator are usually plural for realizing different functions. Such as a refrigerated storage compartment 11, a frozen storage compartment, a variable temperature storage compartment, and the like. The number and function of particular storage compartments may be configured according to the needs in advance. The cross side-by-side refrigerators shown in fig. 21 and 22 are only examples, and those skilled in the art can configure the number, functions and layout of the specific storage compartments according to the need.

The refrigerator of the embodiment is an air-cooled refrigerator, an air path system is arranged in the refrigerator body 1, cooling air which is subjected to heat exchange by a heat exchanger (evaporator) is sent to the storage compartment through the air supply opening of the refrigerator body by using a fan, and then the cooling air is returned to the air duct through the air return opening of the refrigerator body, so that circulating air cooling is realized. Since the refrigerator body, the door body and the refrigerating system of the refrigerator are all well known and easy to realize by those skilled in the art, the refrigerator body, the door body and the refrigerating system are not described in detail in order to not obscure and obscure the utility model.

The fresh food storage container 2 is intended to be disposed within a refrigerated storage compartment 11 of a refrigerator, and fig. 22 shows an example in which one fresh food storage container 2 is disposed within the refrigerated storage compartment 11. Other storage drawers can be arranged in the refrigerating storage compartment 11 besides the fresh-keeping storage container 2, for example, fig. 22 shows an example of the fresh-keeping storage container 2, and the refrigerating storage compartment 11 is also provided with other three drawer-type storage containers, wherein one drawer-type storage container is transversely arranged in parallel with the fresh-keeping storage container 2.

As shown in fig. 1 to 23, the air inlet 103 of the fresh-keeping storage container 2 is used for communicating the space where the evaporator supplying cold to the cold-keeping storage compartment 11 is located, so that air flow is introduced from the space where the evaporator is located, and cold of the air flow is conducted to the accommodating compartment 101 in a thermally isolated manner through the magnetic field assembly 300, the heat insulation layer 50 and the sidewall portion of the inner tub 120, so that the temperature of the side of the sidewall of the inner tub 120 facing the accommodating compartment 101 is maintained to be greater than or equal to-3 ℃.

Specifically, fig. 23 is a schematic view of an air path of a refrigerator supplying cool air to the fresh-keeping storage container 2 according to an embodiment of the present utility model. A refrigerating air duct assembly 12 is arranged at the back of the refrigerating storage compartment 11. In fig. 23, for the purpose of illustrating the refrigerating duct assembly 12, other components of the refrigerating compartment 11 except for the fresh storage container 2 and the refrigerating duct assembly 12, such as a refrigerating liner, a compartment insulation layer, etc., are omitted. A refrigerating air supply fan 13 is arranged in the refrigerating air duct assembly 12, and a fresh-keeping container air supply air passage 14 is formed in the refrigerating air duct assembly 12, and an air inlet 103 of the fresh-keeping container 2 is communicated with a space where an evaporator for cooling the refrigerating storage compartment 11 is located through the fresh-keeping container air supply air passage 14. The refrigerating and air-supplying fan 13 promotes the formation of cold air flow which is blown from the space where the evaporator is located to the air inlet 103 of the fresh-keeping container 2 through the fresh-keeping container air-supplying air path 14.

The fresh container supply air path 14 is one of a plurality of supply air paths provided in the refrigeration duct assembly 12, and the on-off and/or the size of the air flow can be controlled and regulated. For example, an independent adjustable air door can be arranged in the fresh container air supply air path 14; for another example, the refrigeration stack assembly 12 may be provided with other types of airflow distribution devices that provide for controlled adjustment of the airflow to the fresh container supply air duct 14.

The refrigerating duct assembly 12 shown in fig. 23 may use a centrifugal fan as the refrigerating air supply fan 13, and the refrigerating air supply fan 13 sucks in the low-temperature air in the space where the evaporator is located from the rear, and forms a cold air flow that directly blows from the space where the evaporator is located to the air inlet 103 of the fresh container 2 through the fresh container air supply duct 14. Cold air enters the air supply duct 10 of the fresh-keeping storage container 2 through the air inlet 103.

Because the temperature of cold air directly introduced from the space where the evaporator is positioned is very low, the temperature is generally below-6 ℃, the minimum temperature can reach-10 ℃, and the temperature is far lower than the proper temperature for freezing food materials below zero. Therefore, by making cold air pass through the magnetic field assembly 300, the heat insulation layer 50 and the side wall of the inner tub 120 to conduct cold air into the accommodating compartment 101, in the process of flowing cold air in the air supply duct 10, the cold air carried by the cold air is conducted to the accommodating compartment 101 in a thermally isolated manner through the magnetic field assembly 300, the heat insulation layer 50 and the side wall portion of the inner tub 120, that is, only part of the cold air can be conducted into the accommodating compartment 101 through the isolation of the magnetic field assembly 300, the heat insulation layer 50 and the side wall portion of the inner tub 120. In this way, even if the temperature of the cool air flowing out of the space where the evaporator is located is very low, after heat conduction through the magnetic field assembly 300, the heat insulation layer 50 and the side wall of the inner tub 120, a proper amount of cool air can be guaranteed to be transferred to the accommodating compartment 101, so that the temperature of the side wall of the inner tub 120 facing the accommodating compartment 101 is maintained at a temperature of-3 ℃ or more, and the proper temperature for storing the food material below zero is maintained, so that the food material is guaranteed to be in a non-frozen state below zero.

Further, the permanent magnet sheet 321 is made of a composite material of ferrite magnetic powder and synthetic rubber, and the thickness of the permanent magnet sheet 321 is made to be greater than 2 mm, and the heat insulating layer 50 is set to be an air heat insulating layer, and the thickness of the air heat insulating layer is set to be 1 mm or more and 3 mm or less. Under the above structure, the low-temperature cold air from the space where the evaporator is located is matched, on one hand, the permanent magnet sheet 321 meeting the above materials and thickness, the air heat insulation layer meeting the above thickness and the side wall of the inner barrel body 120 are combined, so that the expected proper heat conduction effect is realized, the low-temperature cold air from the space where the evaporator is located is ensured to conduct proper cold energy to the accommodating chamber 101 through the magnetic homogenizing plate 310, the permanent magnet sheet 321, the air heat insulation layer and the side wall of the inner barrel body 120, the temperature of the side wall of the inner barrel body 120 facing the accommodating chamber 101 is truly maintained to be more than-3 ℃, the temperature of the side wall of the inner barrel body 120 is lower than zero ℃, the problem of excessive supercooling of the accommodating chamber 101 is avoided, and the fresh-keeping effect on food materials is ensured.

On the other hand, the permanent magnet 321 meeting the above-mentioned materials and thickness also reliably generates a satisfactory magnetic field in the accommodating compartment 101, ensuring that the food in the accommodating compartment 101 is subjected to a suitable magnetic field, that is, the required range for keeping the magnetic field and temperature in the accommodating compartment 101 is ensured, and the preservation effect of the food is ensured. In addition, the fresh-keeping storage container with the structure can maintain the temperature of the cold air flowing into the cold air duct 30 (i.e. directly entering the accommodating compartment 101) at a proper subzero temperature after heat exchange, and can still ensure the temperature of the food to be maintained in a proper temperature range when the heat exchange is performed to the food through the bottom wall of the drawer 200.

The plurality of storage compartments can be spatially divided in a rack, a shelf, a drawer and the like, so that corresponding storage functions, such as freezing, drying storage and the like, are realized. One or more fresh-keeping storage containers may be disposed in the refrigerator of the present embodiment. In some alternative embodiments, the fresh-keeping storage container can be arranged in one or more of the storage compartments, and long-time high-quality cold fresh preservation of food materials such as meat, fish and the like is realized through magnetic field and temperature regulation. For example, the fresh storage container may be disposed within any one of a refrigerated storage compartment, a frozen storage compartment, a temperature change storage compartment. For example, the fresh-keeping storage containers can be arranged in a plurality of the refrigerating storage compartments, the freezing storage compartments and the variable-temperature storage compartments at the same time, that is, the fresh-keeping storage containers are respectively arranged in a plurality of different storage compartments at the same time. For another example, a plurality of fresh-keeping storage containers can be simultaneously arranged in one storage compartment according to the requirement.

As shown in fig. 24, in another embodiment of the fresh storage container, the thermal insulation layer 50 is disposed on a side of the magnetic field assembly 300 facing the air supply duct 10, that is, the thermal insulation layer 50 is located above the magnetic field assembly 300. Specifically, the thermal insulation layer 50 may be an air thermal insulation layer, a cold storage structure, or other plate made of materials with certain thermal conductivity, such as a temperature equalizing plate, a plastic plate, etc. On the basis of preventing the accommodating compartment from overcooling, the cold accumulation structure can absorb cold energy of cold air, continuously cool the magnetic field assembly, continuously transmit the cold energy to the top of the accommodating compartment and keep the temperature; the temperature uniformity of the accommodating chamber can be improved by the temperature uniformity plate; the plastic plate saves cost.

As shown in fig. 25 and 26, in the refrigerator of another embodiment, the air supply duct 10 is formed between an inner top wall of the storage compartment, which constitutes a top duct wall of the air supply duct 10, and a top wall of the inner tub 120. Specifically, the case 1 is formed with a fresh-keeping compartment 15 for placing a fresh-keeping storage container alone, the volume of the fresh-keeping compartment 15 is slightly larger than the volume of the fresh-keeping storage container, the fresh-keeping storage container includes only the inner tub 120, there is a space between the top wall of the inner tub 120 and the inner top wall of the fresh-keeping compartment 15, the magnetic field assembly 300 and the thermal insulation layer 50 are disposed in the space, the air supply duct 10 is also formed in the space, and the inner top wall of the fresh-keeping compartment 15 constitutes the top wall of the air supply duct 10. And, the magnetic field assembly 300 and the thermal insulation layer 50 are disposed between the supply air duct 10 and the top wall of the inner tub 120. The thermal insulation layer 50 is disposed above the magnetic field assembly 300 to form a bottom duct wall of the supply duct 10. Specifically, the thermal insulation layer 50 may be an air thermal insulation layer, a cold storage structure or other plate made of materials with certain thermal conductivity. In other words, in the present embodiment, the liner wall of the case 1 (the top wall of the fresh-keeping compartment 15) constitutes the top wall of the outer case in the above-described embodiment. Therefore, other structures of the present embodiment can be provided with reference to the structure of the fresh-keeping storage container provided with the outer case in the above embodiment.

In other embodiments, the thermal insulation layer may be disposed below the magnetic field assembly, and the magnetic field assembly forms a bottom air duct wall of the air supply air duct.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims

1. A fresh-keeping storage container, comprising:

The inner barrel body is provided with an accommodating compartment, and an air supply duct is formed on the outer side of the top side wall of the inner barrel body; and

The magnetic field assembly is arranged outside the top side wall of the inner barrel body, is arranged between the air supply air duct and the accommodating compartment and is used for generating a magnetic field in the accommodating compartment;

and a heat insulation layer is formed between the air supply duct and the accommodating compartment.

2. The fresh storage vessel according to claim 1, wherein the thermal barrier is an air thermal barrier.

3. The fresh storage vessel according to claim 2, wherein the thermal barrier is formed on a side of the magnetic field assembly facing away from the supply air duct.

4. The fresh storage vessel according to claim 3, wherein the outer surface of the top side wall of the inner vessel body is provided with a support rib which supports the magnetic field assembly such that the air thermal insulation layer is formed between the magnetic field assembly and the top side wall of the inner vessel body.

5. The fresh storage vessel according to claim 4, wherein the magnetic field assembly comprises:

a source magnet for generating a magnetic field;

And the magnetic homogenizing plate is arranged on one side of the source magnetic piece, which is away from the accommodating chamber.

6. The fresh-keeping storage container according to claim 5, wherein the source magnetic member is a structure composed of a permanent magnetic sheet and an electromagnetic coil, the supporting ribs enclose a placing groove, the electromagnetic coil is arranged in the placing groove, and the supporting ribs support the permanent magnetic sheet.

7. The fresh storage vessel according to claim 2, wherein the magnetic field assembly forms a duct wall of the supply duct.

8. The fresh storage vessel according to claim 7, wherein the fresh storage vessel includes an air duct cover plate disposed on a side of the magnetic field assembly facing away from the receiving compartment, the air duct cover plate forming the supply air duct on a side of the air duct cover plate opposite the magnetic field assembly.

9. The fresh storage vessel according to claim 8, wherein a wind path recess is formed in a side of the wind path cover facing the magnetic field assembly in a direction away from the magnetic field assembly, the wind path recess extending from a rear end to a front end of the wind path cover, the wind path recess and the magnetic field assembly defining the supply wind path.

10. The fresh keeping storage container according to claim 1, wherein the thermal insulation layer is a cold storage structure.

11. The fresh storage vessel according to claim 1, wherein the thermal conductivity of the thermal barrier layer is equal to or greater than 5 and equal to or less than 100 in watts/meter-degree and the thickness is in meters.

12. The fresh storage vessel according to claim 1, wherein the fresh storage vessel comprises two magnetic field assemblies and two magnetically permeable members, one magnetic field assembly being disposed outside a top sidewall of the inner tub and the other magnetic field assembly being disposed outside a bottom sidewall of the inner tub;

The two magnetic conduction pieces are respectively arranged on the outer side of the left side wall and the outer side of the right side wall of the inner barrel body, and the two ends of the magnetic conduction pieces are respectively connected with the two magnetic field assemblies.

13. The fresh storage vessel according to claim 1, further comprising an outer shell, wherein the outer shell is sleeved on the outer side of the inner barrel, an interlayer space is formed between a top side wall of the outer shell and a top side wall of the inner barrel, and the air supply duct, the magnetic field assembly and the thermal insulation layer are disposed in the interlayer space.

14. The fresh storage vessel according to claim 1, wherein the thermal barrier is disposed on a side of the magnetic field assembly facing the supply air duct.

15. A refrigerator comprising a fresh storage container according to any one of claims 1 to 14.

16. The refrigerator of claim 15, comprising a housing defining a storage compartment, the fresh storage receptacle being disposed in the storage compartment.

17. The refrigerator of claim 16, wherein the supply air duct is formed between an inner top wall of the storage compartment and a top wall of the inner tub, the inner top wall of the storage compartment constituting a top duct wall of the supply air duct.

18. The refrigerator of claim 17, wherein the magnetic field assembly forms a bottom duct wall of the supply duct or the thermal barrier forms a bottom duct wall of the supply duct.