CN220771607U - Fresh-keeping storage drawer and refrigerator - Google Patents

Abstract

The utility model provides a fresh-keeping storage drawer and a refrigerator. Wherein fresh-keeping storing drawer is used for setting up in the storing compartment of refrigerator to include: a fixed assembly fixedly disposed with respect to the storage compartment; the drawer body is arranged in a drawable manner relative to the fixed component, and a magnetic field fresh-keeping space for placing stored objects is formed in the drawer body; a magnetic field device configured to form a magnetic field within the magnetic field preservation space, and the magnetic field device comprising: the static assembly is arranged on the fixed assembly; the movable assembly is arranged on the drawer body and is configured to be connected with the static assembly after the drawer body is pushed into the storage compartment in place so as to form a magnetic conduction passage outside the magnetic field fresh-keeping space. The scheme of the utility model has simple structure and convenient assembly, ensures that the magnetic field in the magnetic field preservation space is more uniform, effectively improves the preservation and storage environment, and simultaneously can reduce the release of the magnetic field to the outside of the preservation and storage drawer.

Description

Fresh-keeping storage drawer and refrigerator

Technical Field

The utility model relates to a refrigeration and freezing storage device, in particular to a fresh-keeping storage drawer and a refrigerator.

Background

The fresh-keeping and storage effects of household refrigeration and freezing equipment such as refrigerators become important indexes for measuring the performance of the equipment. Fresh meat, fish and shrimp, and the problem of poor taste and darkened color caused by juice loss during storage.

The prior studies found that the magnetic field had a greater effect on the formation of ice crystals during the freezing process. When the magnetic field is used for freezing food materials, the magnetic field limits the free path of water molecules to a certain extent, and the free path is represented by hydrogen bond breakage in water molecular clusters. In the phase change process, crystal nucleus growth is inhibited, the growth rate of the crystal crystals is higher than the migration rate of water molecules, and the generated crystal crystals are smaller, so that the damage to cells is also small, the juice loss rate is reduced, and the nutrition and the taste of food materials are better preserved. The magnetic field is applied in the refrigerating environment to assist in processing the food materials, so that the supercooling degree of the food materials can be reduced, for example, the freezing temperature of beef is minus 2 ℃, and when the magnetic field acts on the beef, the freezing temperature of the beef can be reduced to minus 5 ℃, so that the beef can be refrigerated at a lower temperature and kept fresh.

In a domestic refrigerator, a drawer type storage structure is generally adopted to realize fresh-keeping storage, however, the movable characteristic of the drawer brings a difficult problem to the arrangement of magnetic field components, so that the technical problem that a uniform and reliable magnetic field is applied to the fresh-keeping storage drawer cannot be solved in the prior art.

Disclosure of Invention

An object of the present utility model is to achieve a uniform and reliable magnetic field applied in a fresh keeping storage drawer.

A further object of the present utility model is to provide a magnetic field which is smooth in the external closed-loop magnetic flux path of the fresh-keeping space.

It is a further object of the present utility model to provide a magnetic field element that is closer to the stored object, thereby providing more efficient use of the magnetic field.

In particular, the present utility model provides a fresh keeping storage drawer for being disposed in a storage compartment of a refrigerator, and comprising:

a fixed assembly fixedly disposed with respect to the storage compartment;

the drawer body is arranged in a drawable manner relative to the fixed component, and a magnetic field fresh-keeping space for placing stored objects is formed in the drawer body;

a magnetic field device configured to form a magnetic field within the magnetic field preservation space, and the magnetic field device comprising:

the static assembly is arranged on the fixed assembly;

the movable assembly is arranged on the drawer body and is configured to be connected with the static assembly after the drawer body is pushed into the storage compartment in place so as to form a magnetic conduction passage outside the magnetic field fresh-keeping space.

Optionally, the movable assembly includes a first magnetic field member, the first magnetic field member is disposed on a bottom plate of the drawer body;

the fixing assembly comprises a drawer top cover, and the drawer top cover is positioned at the top of the drawer body after the drawer body is pushed into the storage compartment;

The static assembly comprises a second magnetic field piece which is arranged on the top cover and is opposite to the second magnetic field piece in the magnetic field interval fresh-keeping space.

Optionally, one or more first magnetic conductive connecting parts are arranged on the drawer body, a first end of each first magnetic conductive connecting part is connected with the first magnetic field piece, and a second end of each first magnetic conductive connecting part forms a connecting end;

the one or more second magnetic conduction connecting parts are arranged on the fixing assembly and are in one-to-one correspondence with the first magnetic conduction connecting parts, the first end of each second magnetic conduction connecting part is connected with the second magnetic field piece, the second end of each second magnetic conduction connecting part forms a matched end matched with the connecting end, and the matched end is connected with the corresponding connecting end after the drawer body is pushed into the storage compartment in place, so that the second magnetic conduction connecting parts and the corresponding first magnetic conduction connecting parts form a magnetic conduction passage.

Optionally, the first magnetic conductive connecting part is arranged on the left lateral side plate and the right lateral side plate of the drawer body, and the second end of the first magnetic conductive connecting part is arranged at the guide rail of the drawer body;

the second magnetic conduction connecting parts are arranged along the left side and the right side of the drawer body from the second magnetic field piece, and the second ends of the second magnetic conduction connecting parts extend towards the corresponding first magnetic conduction connecting parts to form matching ends.

Optionally, a first magnetic conductive connecting part is respectively arranged on the left lateral side plate and the right lateral side plate of the drawer body, and the first magnetic conductive connecting part is positioned in the middle of the drawer body in the drawing direction.

Optionally, a plurality of first magnetic conductive connecting portions are respectively disposed on the left lateral side plate and the right lateral side plate of the drawer body, and the plurality of first magnetic conductive connecting portions are disposed at intervals along the drawing direction of the drawer body.

Optionally, the first magnetic field member includes:

the first magnetic conduction plate is arranged below the bottom plate of the drawer body and is connected with the first end of the first magnetic conduction connecting part;

a first magnetic source sheet adhered to one side of the first magnetic conductive plate and

the second magnetic field member includes:

the second magnetic conduction plate is arranged above the top cover and is connected with the first end of the second magnetic conduction connecting part;

the second magnetic source sheet is attached to one side plate surface of the first magnetic conduction plate.

Optionally, the first magnetic source sheet is attached to one side of the first magnetic guide plate, which faces the bottom plate of the drawer body;

the second magnetic source sheet is attached to one side of the second magnetic conduction plate, which faces the top cover.

Optionally, the first magnetic source sheet and the second magnetic source sheet are respectively uniformly magnetized permanent magnet sheets.

Optionally, the first magnetic conductive plate, the second magnetic conductive plate, the first magnetic conductive connection portion, and the second magnetic conductive connection portion are respectively made of a high magnetic permeability material.

Optionally, the fixing assembly further comprises a barrel body, and the barrel body is provided with a forward opening; the drawer body is drawably arranged in the barrel body from the front opening,

The second magnetic conduction connecting part is arranged close to the inner side of the barrel wall of the barrel body.

Alternatively, the magnetic field is configured with an effective magnetic field strength in the range of 10-100GS and an effective spacing in the range of 60-240mm.

According to another aspect of the present utility model, there is also provided a refrigerator including any one of the above fresh keeping drawers.

Optionally, the refrigerator further includes:

the box body is internally provided with at least a fresh-keeping storage compartment, and the rear side of the fresh-keeping storage compartment is provided with a refrigerating air duct; and is also provided with

The fresh-keeping storing drawer is arranged in the fresh-keeping storing compartment, and the back plate at the rear part of the fresh-keeping storing drawer is provided with an air supply port and an air return port which are used for communicating the refrigerating air channel, so that cold air in the refrigerating air channel is introduced into the air supply port, and the cold air is returned to the refrigerating air channel from the air return port after heat exchange with the fresh-keeping storing drawer.

Optionally, a heat exchange air channel surrounding the fresh-keeping storage drawer is formed in the fresh-keeping storage compartment, and the heat exchange air channel is arranged around the fresh-keeping storage drawer from the air supply opening and is finally communicated to the air return opening.

According to the fresh-keeping storage drawer and the refrigerator, the static component in the magnetic field device is arranged on the fixed component fixed in the storage compartment, and the movable component in the magnetic field device is arranged on the drawer body and is configured to move along with the drawer body. After the drawer body is pushed into the storage compartment in place, the movable component is connected with the static component so as to form a magnetic conduction passage outside the magnetic field fresh-keeping space. The movable component is arranged on the drawer body and is closer to the stored object, so that the magnetic field is utilized more fully; the static subassembly sets up in fixed subassembly, can avoid interfering with drawer body structure, simplify the structure. The magnetic field device forms a magnetic field which is favorable for preserving the storage in the magnetic field preservation space of the drawer. The magnetic field is beneficial to improving the storage quality, shortening the freezing time, reducing the juice loss rate and nutrition loss of food, reducing the number of microorganisms and bacteria and prolonging the fresh-keeping period. The magnetic conduction passage is arranged outside the magnetic field preservation space, and the magnetic field distribution is adjusted by converging magnetic lines of force outside the magnetic field preservation space, so that the magnetic field in the magnetic field preservation space is more uniform, the preservation storage environment is effectively improved, the release of the magnetic field to the outside of the preservation storage drawer can be reduced, and the interference to other external parts (such as the avoidance of magnetization of other parts) is reduced.

Further, the fresh-keeping storage drawer and the refrigerator are provided with the first magnetic field piece which is arranged on the bottom plate of the drawer body and is close to the stored objects. The second magnetic field piece is arranged on the top cover of the drawer and does not move along with the drawer body, so that the object taking opening of the drawer body can be prevented from being blocked; the first magnetic conduction connecting portion and the second magnetic conduction connecting portion form a connecting section and a matching end respectively at the end parts, and the matching end is connected with the corresponding connecting end after the drawer body is pushed into the storage compartment in place, so that the second magnetic conduction connecting portion and the corresponding first magnetic conduction connecting portion form a magnetic conduction passage. The first magnetic conduction connecting portion and the second magnetic conduction connecting portion utilize the drawer to draw to realize magnetic circuit communication, have avoided setting up complicated occupation space big magnetism communication part of structure, be convenient for assemble production, improved the utilization efficiency in magnetic field fresh-keeping space.

Furthermore, the fresh-keeping storage drawer and the refrigerator are simple to assemble and improve the reliability of long-term use by optimizing the positions and the structures of the first magnetic conduction connecting part and the second magnetic conduction connecting part.

Furthermore, the refrigerator improves the way of refrigerating and blowing to the fresh-keeping storage drawer, combines the magnetic field fresh-keeping technology with the high-precision and high-stability refrigerating technology, greatly improves the fresh-keeping effect and prolongs the fresh-keeping storage time.

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 a fresh storage drawer according to one embodiment of the utility model;

FIG. 2 is an exploded view of the fresh storage drawer of FIG. 1;

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

FIG. 4 is a side view of a magnetic field device in a fresh food drawer according to one embodiment of the utility model in a state in which the drawer body is pulled out;

FIG. 5 is a side view of the magnetic field device in the fresh food drawer according to one embodiment of the present utility model with the drawer body pushed into the tub;

FIG. 6 is a side view of a magnetic field device in a fresh keeping storage drawer according to another embodiment of the present utility model in a state in which a drawer body is pushed into a tub;

Fig. 7 is a schematic view of a refrigerator according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the refrigerator shown in FIG. 7 after the upper door body is removed;

fig. 9 is a schematic view of a cooling air path system of a refrigerator according to an embodiment of the present utility model;

fig. 10 is a schematic view of a cooling air path system 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 embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", 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 embodiment and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. For example, in this embodiment, the direction of the refrigerator body toward the door body is the front direction, the direction of the door body toward the refrigerator body is the rear direction, the direction toward the floor surface on which the refrigerator is mounted is the lower direction, and the direction opposite to the floor surface is the upper direction, except that other directions are individually and clearly defined.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Further, it should also be noted that, in the description of the present utility model, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. 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.

Fig. 1 is a schematic view of a fresh storage drawer 30 according to one embodiment of the utility model. The fresh-keeping storing drawer 30 is used for being arranged in a storing compartment of the refrigerator, the storing compartment can be a refrigerating storing compartment, a temperature-changing storing compartment and a freezing storing compartment, and the fresh-keeping storing drawer 30 can be arranged in an independently arranged compartment for realizing magnetic field fresh-keeping or can be arranged in a part of the space of the storing compartment.

The fresh storage drawer 30 can generally include a securing assembly 31 and a drawer body 320. The fixed assembly 31 is fixedly disposed relative to the storage compartment, i.e., after the fixed assembly 31 is installed inside the refrigerator, its position is relatively stationary and will not be moved during normal use. The drawer body 320 is drawably disposed with respect to the fixing assembly 31, and has a magnetic field fresh-keeping space formed therein for storing objects.

FIG. 2 is an exploded view of the components of the fresh storage drawer 30 of FIG. 1; fig. 3 is a front cross-sectional view of a fresh storage drawer 30 according to one embodiment of the utility model. FIG. 4 is a side view of the magnetic field device 40 of the fresh food storage drawer 30 in a pulled-out state of the drawer body 320, according to one embodiment of the present utility model; fig. 5 is a side view of the magnetic field device 40 of the fresh storage drawer 30 in a state in which the drawer body 320 is pushed into the tub 310 according to an embodiment of the present utility model.

The fixing assembly 31 may include a drawer top 315, a tub 310. The tub 310 is provided with a forward opening, and the tub 310 described in this embodiment is disposed outside the drawer body 320, and defines a magnetic field fresh-keeping space 330 together with the drawer body 320. In some embodiments, other outer shells may be further disposed on the outer side of the tub 310, that is, the tub 310 may be used as an inner layer of the multi-layer casing of the fresh-keeping drawer 30, and may also be referred to as an inner tub or a tub liner.

In the description of the present embodiment, the relative positional relationship of the other components is described in a state where the drawer body 320 is pushed into the tub 310 unless otherwise specified. It should be understood by those skilled in the art that when the drawer body 320 is pulled out of the tub 310 to expose the top space for taking and placing the articles, the relative positions of the components provided on the drawer body 320 and the tub 310 may be displaced in the pulling direction.

The drawer top 315 is positioned on top of the drawer body 320 after the drawer body 320 is pushed into place in the storage compartment, generally the drawer top 315 is positioned inside the top wall of the tub 310, in some embodiments, the drawer top 315 may be fixedly connected to the top wall of the tub 310, or provided as an integral component, or the drawer top 315 may be directly used as the top wall of the tub 310.

The magnetic field device 40 is used to form a magnetic field in the field-preserving space 330. The magnetic field device 40 includes: a stationary component 42 and a movable component 41. The stationary component 42 is disposed on the fixed component 31 and is not moved during normal use. The movable component 41 is disposed on the drawer body 320, and is configured to connect with the stationary component 42 after the drawer body 320 is pushed into place in the storage compartment, so as to form a magnetic conduction path outside the magnetic field preservation space 330.

The movable assembly 41 is arranged on the drawer body 320 and can be closer to the stored object, so that the magnetic field is utilized more fully. The stationary component 42 is disposed on the fixed component 31, which can avoid structural interference with the drawer body 320 and simplify the structure. It will be appreciated by those skilled in the art that the magnetic field strength will correspondingly decay as the distance from the magnetic source increases, so that the movable assembly 41 may be positioned as close to the stored object as possible in order to ensure that the magnetic field of the magnetic field device 40 is as sufficient as possible for the magnetic field preservation space.

The magnetic field device 40 creates a magnetic field within the magnetic field preservation space 330 of the drawer 30 that favors preserving the storage. The magnetic field is beneficial to improving the storage quality, shortening the freezing time, reducing the juice loss rate and nutrition loss of food, reducing the number of microorganisms and bacteria and prolonging the fresh-keeping period. The magnetic conduction path formed by the static component 42 and the movable component 41 can adjust the magnetic field distribution by converging magnetic lines of force outside the magnetic field preservation space 330, so that the magnetic field in the magnetic field preservation space 330 is more uniform, the preservation storage environment is effectively improved, the release of the magnetic field to the outside of the preservation storage drawer 30 can be reduced, and the interference to other external components (such as avoiding magnetization of other components) is reduced.

The movable assembly 41 includes a first magnetic member 410, and the first magnetic member 410 is disposed on the bottom plate of the drawer body 320. The stationary component 42 includes a second magnetic field member 420, and the second magnetic field member 420 is disposed on the top cover 315 and is opposite to the first magnetic field member 410 with respect to the magnetic field fresh-keeping space 330.

In some embodiments, the first magnetic field piece 410 may include: the first magnetic conductive plate 411 and the first magnetic source sheet 412. The second magnetic field piece 420 may include: the second magnetic conductive plate 421 and the second magnetic source sheet 422. The first magnetic conductive plate 411 may be disposed under the bottom plate of the drawer body 320, alternatively, the first magnetic conductive plate 411 may be embedded inside the bottom plate of the drawer body 320. The first magnetic source sheet 412 is attached to a side surface of the first magnetic conductive plate 411. Generally, the first magnetic source sheet 412 is disposed on the inner side of the first magnetic conductive plate 411 in a bonding manner, that is, the first magnetic source sheet 412 may be disposed on one side of the first magnetic conductive plate 411 facing the bottom plate of the drawer body 320 (or facing the magnetic field preservation space 330). The first magnetic source sheet 412 is abutted against the bottom plate of the drawer body 320, thereby greatly reducing the distance from the stored object.

The second magnetic conductive plate 421 may be disposed on the top cover 315. For example, the second magnetic conductive plate 421 may be disposed above the top cover 315 or embedded inside the top cover 315. The second magnetic source sheet 422 is attached to a side plate surface of the first magnetic conductive plate. Generally, the second magnetic source sheet 422 is disposed on the inner side of the second magnetic conductive plate 421, that is, the second magnetic source sheet 422 may be disposed on the side of the second magnetic conductive plate 421 facing the drawer body 320.

The first magnetic source sheet 412 and the second magnetic source sheet 422 may be uniformly magnetized permanent magnetic sheets, for example, may be made of permanent magnetic materials having a certain flexibility, for example, may be made of rubber magnetic sheets having flexibility, which are made by compounding bonded ferrite magnetic powder with synthetic rubber, and by a calendaring process.

In some embodiments, the first magnetic source sheet 412 may have a size slightly smaller than the first magnetic conductive plate 411, and the second magnetic source sheet 422 may have a size slightly smaller than the second magnetic conductive plate 421. The first magnetic source sheet 412 may be attached to a central region of the first magnetic conductive plate 411. The second magnetic source sheet 422 may be attached to a central region of the second magnetic conductive plate 421. So that the first magnetic conductive plate 411 may have an extension portion (an edge beyond the coverage area of the first magnetic source sheet 412) at the outer periphery of the first magnetic source sheet 412; the second magnetic conductive plate 421 may have an extension (an edge beyond the coverage area of the second magnetic source sheet 411) at the outer periphery of the second magnetic source sheet 422. The first and second magnetic conductive plates 411 and 421 uniformly distribute the magnetic field.

The first magnetic source sheet 412 and the first magnetic conductive plate 411 and the second magnetic source sheet 422 and the second magnetic conductive plate 421 are required to be closely attached to each other, so that reliable magnetic connection can be ensured. In some embodiments, a magnetically conductive adhesive may be coated between the first magnetic source sheet 412 and the first magnetic conductive plate 411 and between the second magnetic source sheet 422 and the second magnetic conductive plate 421, so as to achieve better adhesion between the two, and the magnetically conductive adhesive may use an organosilicon magnetically conductive adhesive or an epoxy magnetically conductive adhesive.

In other embodiments, the first magnetic field piece 410 and the second magnetic field piece 420 may also be provided with electromagnetic components (not shown), such as electromagnetic components that are provided in a ring shape, disposed around the outer periphery of the first magnetic source piece 412 and the second magnetic source piece 422, respectively. That is, the first magnetic source piece 412 and the second magnetic source piece 422 may be provided in an annular inner ring of the electromagnetic member. The electromagnetic field generated by the electromagnetic component can compensate the weaker magnetic field of the edge area of the permanent magnet sheet, so that the whole magnetic field fresh-keeping space 330 covered by the permanent magnet sheet can realize a uniform magnetic field, and the food fresh-keeping effect of the whole fresh-keeping space is improved. Thereby overcoming the condition that the magnetic field intensity is uneven due to weak magnetic field in the edge area of the permanent magnet sheet. In addition, the electromagnetic component may also be disposed against the permanent magnet sheet, for example, inside the permanent magnet sheet, or between the permanent magnet sheet and the magnetic conductive plate.

The magnetic field device 40 may also include one or more first magnetically conductive connections 431 and one or more second magnetically conductive connections 432. The first magnetic conductive connecting parts 431 and the second magnetic conductive connecting parts 432 are arranged in one-to-one correspondence, and after the drawer body 320 is pushed into the storage compartment in place, the first magnetic conductive connecting parts 431 and the second magnetic conductive connecting parts 432 are magnetically connected to form a complete magnetic conductive path.

The first magnetically conductive connection portions 431 are disposed on the drawer body 320, and a first end of each first magnetically conductive connection portion 431 is connected to the first magnetic field member 410, and a second end thereof forms a connection end 4311. A first end of the first magnetically conductive connection portion 431 may be connected to an edge of the first magnetically conductive plate 411 in the first magnetic field piece 410.

The second magnetically conductive connection portion 432 is disposed on the fixing assembly 31. The first end of each second magnetically conductive connection portion 432 is connected to the second magnetic field member 420, the second end thereof forms a mating end 4321 adapted to the connection end 4311, and the mating end 4321 is connected to the corresponding connection end 4311 after the drawer body 320 is pushed into place in the storage compartment, so that the second magnetically conductive connection portions 432 and the corresponding first magnetically conductive connection portions 431 form a magnetically conductive path. The first end of the second magnetically conductive connection portion 432 may be connected to an edge of the second magnetically conductive plate 421 in the second magnetic field piece 420. In some embodiments, the first end of the first magnetically conductive connection 431 abuts the outer extension of the first magnetically conductive plate 411, but has a magnetic gap with the first magnetic source piece 412; the first end of the second magnetically conductive connection portion 432 abuts against the extension portion of the second magnetically conductive plate 421, but has a magnetic gap with the second magnetic source sheet 422. Thereby avoiding interference with the distribution of the magnetic field in the magnetic field fresh-keeping space 330 while forming the external magnetic circuit.

The first magnetic conductive plate 411, the second magnetic conductive plate 421, the first magnetic conductive connection portion 431, and the second magnetic conductive connection portion 432 are respectively made of a high magnetic permeability material. The high permeability material may be a ferromagnetic material having a permeability above about 100, which is much greater than the air environment and has a low coercivity through which a magnetic field preferentially passes.

The tub 310 is further provided with other functional components, such as sliding rails 311, which are engaged with the drawer body 320. In order to avoid the first magnetically conductive connection portion 431 and the second magnetically conductive connection portion 432 from interfering with other functional components on the tub 310. The first magnetically conductive connection portion 431 may be disposed on the left and right lateral side plates of the drawer body 320, and the second end thereof is disposed at the guide rail of the drawer body 320. The second magnetically conductive connection portion 4321 is disposed along the left and right sides of the drawer body 320 from the second magnetic field member 420, and the second end thereof extends toward the corresponding first magnetically conductive connection portion 431 to form a mating end 4321. The first magnetically conductive connection portion 431 and the second magnetically conductive connection portion 4321 are thereby coupled at a position where structural interference occurs in the guide rail or the like. The connection end 4311 and the mating end 4321 may be provided with a slot, an elastic clamping structure, a butterfly spring, or the like to reliably insert and withdraw the structure, thereby improving connection reliability. After the drawer body 320 is pushed into the tub 310, the connection end 4311 and the mating end 4321 are reliably connected, so that smooth communication of the magnetic circuit is ensured.

In the embodiment shown in fig. 2-5, a first magnetically conductive connection portion 431 may be disposed on each of the left and right lateral side plates of the drawer body 320, and the first magnetically conductive connection portion 431 is located at the middle of the drawer body 320 in the drawing direction. Correspondingly, the second magnetic conductive connection part 432 is positioned at the middle part of the barrel 310 in the front-rear depth direction, so as to ensure the magnetic field uniformity of the magnetic field fresh-keeping space 330. In some alternative embodiments, the first and second magnetically conductive connection parts 431 and 432 may be disposed at positions offset from the center in the drawing direction to be closer to the front or rear side due to structural interference of other components, but such an offset position may have less influence on the magnetic field uniformity than a configuration in which the first and second magnetically conductive connection parts 431 and 432 are disposed at the center in the drawing direction.

Fig. 6 is a side view of the magnetic field device 40 of the fresh food storage drawer 30 according to another embodiment of the present utility model in a state in which the drawer body 320 is pushed into the tub 310. In this embodiment, a plurality of first magnetically conductive connection portions 431 are disposed on the left and right lateral side plates of the drawer body 320, respectively, and the plurality of first magnetically conductive connection portions 431 are disposed at intervals along the drawing direction of the drawer body 320. So that a plurality of magnetic conduction passages are arranged on each lateral peripheral wall (left side wall and right side wall) of the drawer body 320 at intervals along the drawing direction of the drawer body 320. The figure shows a case where two first magnetically conductive connection parts 431 are provided per side, and in practical application of the solution of the present embodiment, a person skilled in the art may select the number of the first magnetically conductive connection parts 431 provided per side, for example, three or more, as needed.

The magnetic field generated by the magnetic field device 40, which is beneficial for preserving the storage, is configured to have an effective magnetic field intensity ranging from 10GS to 100GS, and further can be set to 40GS to 60GS, such as 10GS, 20GS, 40GS, 60GS, 80GS, 100GS, etc., and the effective magnetic field spacing ranges: 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.

Fig. 7 is a schematic view of a refrigerator 10 according to one embodiment of the present utility model; fig. 8 is a schematic view of the refrigerator 10 shown in fig. 7 with the upper door 11 hidden. The refrigerator of the present embodiment may generally include a cabinet 12, a door 11, and a refrigerating system (not shown in the drawings). The housing 12 may include a shell, a liner, insulation, trim, and the like.

The housing 12 may define at least one open-front storage compartment, and typically a plurality of compartments, such as a refrigerated storage compartment 121, a frozen storage compartment 123, a variable temperature storage compartment 122, and the like. One skilled in the art can configure the number, function, and layout of the specific storage compartments as desired. The number of the door bodies 11 can be matched with the number of the storage compartments, so that the storage compartments can be opened independently one by one. The door body 11 may also take the form of a side-hung door, a side-sliding door, a sliding door, or the like. The number and function of particular storage compartments may be configured according to the needs in advance. According to the different layout modes 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 further comprise: double door refrigerators, triple door refrigerators, side-by-side refrigerators, french refrigerators, italian refrigerators, and the like. The french four-door refrigerator shown in figures 7 and 8 is only an example,

In some embodiments, the preservation temperature of the refrigerated storage compartment 121 may be 0-9 ℃, or may be 2-7 ℃, for example; the preservation temperature of the freezing storage compartment 123 can be-22 to-14 ℃, or can be-20 to 16 ℃, and the variable temperature storage compartment 122 is arranged between the refrigerating storage compartment 121 and the freezing storage compartment 123. The temperature change storage compartment 122 can be adjusted as desired to store the appropriate food or as a fresh storage compartment.

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 food drawers 30 may be disposed within the refrigerator 10 of this embodiment. In some alternative embodiments, the fresh-keeping drawer 30 may be disposed in one or more of the storage compartments, and long-term high-quality cold fresh preservation of food materials such as meat, fish, etc. is achieved through magnetic field and temperature regulation. For example, the fresh storage drawer 30 can be disposed within any of the refrigerated storage compartment 121, the frozen storage compartment 123, and the variable temperature storage compartment 122. For another example, the fresh-keeping drawers 30 may be disposed in a plurality of the refrigerating compartment 121, the freezing compartment 123, and the temperature-changing compartment 122 at the same time, that is, the fresh-keeping drawers 30 may be disposed in a plurality of different compartments at the same time. For another example, multiple fresh storage drawers 30 may be provided simultaneously within a single storage compartment as desired. Fig. 8 shows an example of a fresh food drawer 30 disposed within a refrigerated storage compartment 121. The fresh storage drawer 30 is a drawer-structured storage container. Other drawer storage containers may be provided in the refrigerated storage compartment 121 in addition to the fresh storage drawer 30.

The refrigerator 10 of the present embodiment may be an air-cooled refrigerator. Fig. 8 is a schematic view of a cooling air path system of the refrigerator 10 according to an embodiment of the present utility model. An air path system is provided in the case 12, and sends air passing through the heat exchanger (evaporator) to each storage compartment. The air duct system is typically disposed on the back of the housing 12 and is constructed using duct covers, foam pieces, and the like. The number of evaporators in a refrigeration system is divided into a plurality of systems and a single system. Wherein the multi-system comprises a plurality of evaporators, each evaporator being responsible for the refrigeration of a portion of the storage compartment. Taking the cooling air path system shown in fig. 8 as an example, a cooling air duct 131 is formed at the back of the cooling compartment 121. A refrigeration evaporator 133 is disposed within the refrigeration tunnel 131, and a refrigeration blower 132 causes a refrigeration airflow to form the refrigerated storage compartment 121. A refrigerating air duct 135 is formed at the back of the refrigerating compartment 123 and the temperature-varying compartment 122. A freezing evaporator 137 is disposed within the freezing and refrigerating air duct 135, and the freezing and refrigerating fan 136 causes a freezing air flow to be formed in the freezing compartment 123 and/or the temperature-changing compartment 122.

The refrigeration evaporator 133 and the refrigeration evaporator 137 may be separately controlled on and off, for example, the refrigeration evaporator 137 and the refrigeration chiller 136 may be turned on to cool when the temperature of the refrigeration compartment 123 reaches a refrigeration on condition. The freezing air flow is sent from the position of the freezing evaporator 137 to the freezing compartment 123 through the air supply openings at the respective positions of the freezing compartment 123. After the refrigerating air flow is sent into the refrigerating compartment 123, heat exchange is performed with the stored object, and the temperature is lowered. The air flow cycle is then completed by returning the chilled evaporator 137 to the location through the return air inlet of the chilled storage compartment 123.

Also for example, the refrigeration evaporator 133 and the refrigeration chiller 132 may initiate refrigeration when the temperature of the refrigerated storage compartment 121 reaches a refrigeration initiation condition.

The refrigerating air flow is sent from the position of the refrigerating evaporator 133 to the refrigerating compartment 121 through the air door at different positions of the refrigerating compartment 121, and then flows forward from the inside of the refrigerating compartment 121, exchanges heat with the stored object in the refrigerating compartment 121, and cools the stored object. The refrigerated air flow then returns from the refrigerated storage compartment 121 via the return air inlet to the location of the refrigerated evaporator 133, completing the air flow cycle. A plurality of dampers may be provided in the refrigeration duct 131, and may adjust the direction of the refrigeration airflow. The plurality of air doors can comprise a fresh-keeping refrigeration air door 134, and the fresh-keeping refrigeration air door 134 is specially used for adjusting the on-off and the size of the refrigeration air flow of the fresh-keeping storage drawer 30. Alternatively, in some embodiments, a concentrated air flow distribution device may be disposed within the refrigeration air duct 131, where the concentrated air flow distribution device communicates with the air duct leading to different areas of the refrigerated storage compartment 121, and may distribute the flow of refrigeration air to different areas of the refrigerated storage compartment 121. Wherein the fresh food storage drawers 30 may be provided with dedicated cooling air flow passages for independent cooling control.

The refrigeration start-stop conditions of the refrigeration evaporator 133 and the refrigeration evaporator 137 are well known to those skilled in the art, and can be set by those skilled in the refrigerator art according to the refrigeration requirement. The refrigerator of the present embodiment is particularly improved with respect to the way in which the fresh storage drawer 30 is cooled.

The fresh-keeping storage drawer 30 is disposed in a fresh-keeping storage compartment (which may be a part of the fresh-keeping storage compartment 121 or independent of the fresh-keeping storage compartment 121), and an air supply port 316 and an air return port 317 for communicating with the refrigeration air duct 131 are formed in a back plate at the rear of the fresh-keeping storage drawer 30, so that 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 drawer 30.

An insulating layer 124 is provided between the fresh storage compartment in which the fresh storage drawer 30 is located and the space of the adjacent fresh storage compartment 121. The insulating layer 124 may set the fresh storage temperature of the fresh 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 cold-keeping storage temperature, the characteristic that supercooling is not easy to freeze is utilized in a magnetic field environment, longer-time fresh-keeping storage is realized, and for example, the fresh-keeping storage temperature can be set to be-2 ℃ to 0 ℃.

In the case where the fresh air cooling damper 134 is opened or the concentrated air flow distribution device is opened to supply air to the fresh storage compartment in which the fresh storage drawer 30 is located, the cooling air flow is supplied from the air supply port to the fresh storage drawer 30. In this embodiment, the refrigerating air flow does not directly enter the magnetic field fresh-keeping space 330, but exchanges heat around the fresh-keeping storage drawer 30, so as to avoid the lower temperature refrigerating air flow from directly contacting the stored objects in the magnetic field fresh-keeping space 330. One way of the flow of refrigerant air around the fresh storage drawer 30 is: the air flow enters the top of the fresh food drawer 30 from the air supply opening 316, then flows from the back to the front along the top of the fresh food drawer 30, then flows from the front of the fresh food drawer 30 from the top to the bottom, and finally flows from the front to the back along the bottom of the fresh food drawer 30 back to the air return opening 317. The refrigerating air path of the fresh-keeping storage drawer 30 surrounds the whole fresh-keeping storage drawer 30 for a circle, and can realize sufficient heat exchange to uniformly refrigerate and cool the fresh-keeping storage drawer 30 under the condition that the fresh-keeping storage drawer does not enter the magnetic field fresh-keeping space 330 and can not directly contact stored objects.

A heat exchange air duct 340 is formed in the fresh food compartment around the fresh food drawer 30, the heat exchange air duct 340 extending from the supply air opening 316 forward along a side wall (e.g., top wall) of the fresh food drawer 30 to the front of the fresh food drawer 30 and then rearward along another side wall (e.g., bottom wall) to the return air opening 317.

In alternative embodiments, the heat exchange tunnel 340 may be wrapped around the fresh storage drawer 30 in other ways, such as from the left side forward, from the front of the drawer laterally to the right, and then back from the right side to the back, i.e., laterally. That is, the heat exchanging air duct 340 extends from the air supply opening 316 forward along the left side wall (or right side wall) of the fresh storage drawer 30 to the front of the fresh storage drawer 30 and then extends rearward along the right side wall (or left side wall) to the return air opening 317.

In order to improve the refrigerating efficiency, the refrigerating air flow is generally required to be sent into the storage space, and even if the direct current blowing is used for avoiding local supercooling, the adopted technical means is generally to use the hole with smaller hole diameter to blow air into the drawer storage space or to set a special air guide channel in the storage space. The fresh-keeping storage drawer 30 of the embodiment creatively provides a scheme that refrigerating air flow is not sent into the magnetic field fresh-keeping space 330 and indirect refrigeration is realized by using a surrounding air path, so that the fresh-keeping effect is better improved by combining a magnetic field, and the technical prejudice of the technicians in the field is overcome.

Fig. 10 is a schematic view of a cooling air path system of the refrigerator 10 according to another embodiment of the present utility model. In this embodiment, refrigeration of the refrigerated storage compartment 121, the variable temperature storage compartment 122, and the refrigerated storage compartment 123 is achieved using the refrigeration evaporator 137. A refrigerating air duct 131 is formed at the back of the refrigerating compartment 121. A refrigerating air duct 135 is formed at the back of the refrigerating compartment 123 and the temperature-varying compartment 122. A refrigeration evaporator 137 is disposed in the refrigeration air duct 135, and the refrigeration fan 136 promotes the formation of a refrigeration air flow.

A refrigeration damper 138 may be disposed between the refrigeration air duct 135 and the refrigeration air duct 131. When the refrigeration compartment 121 needs to be refrigerated separately, the refrigeration damper 138 is opened, and the dampers at the air supply ports of the refrigeration compartment 123 and the temperature-variable compartment 122 may be all closed, so that the refrigeration fan 136 causes the formed refrigeration air flow to be sent into the refrigeration air duct 131 through the refrigeration damper 138. When the freezing storage compartment 123 or the temperature-changing storage compartment 122 needs to be cooled separately, the refrigeration air door 138 is closed, and the air doors at the air supply openings of the freezing storage compartment 123 and the temperature-changing storage compartment 122 are opened correspondingly, so that the refrigerating air flow formed by the refrigerating fan 136 can be sent into the freezing storage compartment 123 and the temperature-changing storage compartment 122. When the refrigeration compartment 121 and the refrigeration compartment 123 need to be refrigerated simultaneously, the refrigeration damper 138 and the damper at the air supply port of the refrigeration compartment 123 may be both opened, and the refrigeration air flows in the refrigeration air duct 135 and the refrigeration air duct 131 simultaneously. 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 the different storage compartments.

The back plate of the rear part of the preservation storage drawer 30 is also provided with an air supply port 316 and an air return port 317 which are used for communicating the refrigeration air duct 131, so that 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 exchanging heat with the preservation storage drawer 30.

An insulating layer 124 is provided between the fresh storage compartment in which the fresh storage drawer 30 is located and the space of the adjacent fresh storage compartment 121. The insulating layer 124 may set the fresh storage temperature of the fresh 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 cold-keeping storage temperature, the characteristic that supercooling is not easy to freeze is utilized in a magnetic field environment, longer-time fresh-keeping storage is realized, and for example, the fresh-keeping storage temperature can be set to be-2 ℃ to 0 ℃.

In the case where the fresh air cooling damper 134 is opened or the concentrated air flow distribution device is opened to supply air to the fresh storage compartment in which the fresh storage drawer 30 is located, the cooling air flow is supplied from the air supply port to the fresh storage drawer 30. In this embodiment, the refrigerating air flow does not directly enter the magnetic field fresh-keeping space 330, but exchanges heat around the fresh-keeping storage drawer 30, so as to avoid the lower temperature refrigerating air flow from directly contacting the stored objects in the magnetic field fresh-keeping space 330.

A heat exchange air duct 340 is formed in the fresh food compartment around the fresh food drawer 30, the heat exchange air duct 340 extending from the supply air opening 316 forward along a side wall (e.g., top wall) of the fresh food drawer 30 to the front of the fresh food drawer 30 and then rearward along another side wall (e.g., bottom wall) to the return air opening 317.

The refrigerator of the embodiment improves the way of refrigerating and blowing to the fresh-keeping storage drawer 30, combines the magnetic field fresh-keeping technology with the high-precision and high-stability refrigerating technology, greatly improves the fresh-keeping effect and prolongs the fresh-keeping storage time.

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 (15)

1. A fresh-keeping storing drawer for setting up in the storing compartment of refrigerator, characterized by comprising:

a fixed assembly fixedly disposed relative to the storage compartment;

the drawer body is arranged in a drawable manner relative to the fixing assembly, and a magnetic field fresh-keeping space for placing stored objects is formed in the drawer body;

a magnetic field device configured to form a magnetic field within the magnetic field preservation space, and the magnetic field device comprising:

The stationary component is arranged on the fixed component;

the movable assembly is arranged on the drawer body and is configured to be connected with the static assembly after being pushed into the storage compartment in place along with the drawer body so as to form a magnetic conduction passage outside the magnetic field fresh-keeping space.

2. The fresh keeping storage drawer of claim 1, wherein

The movable assembly comprises a first magnetic field piece, and the first magnetic field piece is arranged on the bottom plate of the drawer body;

the fixing assembly comprises a drawer top cover, and the drawer top cover is positioned at the top of the drawer body after the drawer body is pushed into the storage compartment in place;

the static assembly comprises a second magnetic field piece, wherein the second magnetic field piece is arranged on the top cover and is opposite to the second magnetic field piece in a magnetic field spaced fresh-keeping space.

3. The fresh keeping storage drawer of claim 2, wherein

One or more first magnetic conductive connecting parts are arranged on the drawer body, the first end of each first magnetic conductive connecting part is connected with the first magnetic field piece, and the second end of each first magnetic conductive connecting part forms a connecting end;

one or more second magnetic conduction connecting parts are arranged on the fixing assembly and are in one-to-one correspondence with the first magnetic conduction connecting parts, the first end of each second magnetic conduction connecting part is connected with the second magnetic field piece, the second end of each second magnetic conduction connecting part forms a matched end matched with the connecting end, and the matched end is connected with the corresponding connecting end after the drawer body is pushed into the storage compartment in place, so that the second magnetic conduction connecting parts and the corresponding first magnetic conduction connecting parts form a magnetic conduction passage.

4. A fresh keeping storage drawer according to claim 3, wherein

The first magnetic conduction connecting part is arranged on the left lateral side plate and the right lateral side plate of the drawer body, and the second end of the first magnetic conduction connecting part is arranged at the guide rail of the drawer body;

the second magnetic conduction connecting parts are arranged along the left side and the right side of the drawer body from the second magnetic field piece, and the second ends of the second magnetic conduction connecting parts extend towards the corresponding first magnetic conduction connecting parts to form the matching ends.

5. The fresh keeping storage drawer of claim 4, wherein

The drawer is characterized in that the left lateral side plate and the right lateral side plate of the drawer body are respectively provided with a first magnetic conduction connecting part, and the first magnetic conduction connecting parts are positioned in the middle of the drawer body in the drawing direction.

6. The fresh keeping storage drawer of claim 4, wherein

The drawer comprises a drawer body, wherein a plurality of first magnetic conduction connecting parts are respectively arranged on left and right transverse side plates of the drawer body, and the first magnetic conduction connecting parts are arranged at intervals along the drawing direction of the drawer body.

7. A fresh keeping storage drawer according to claim 3, wherein

The first magnetic field piece includes:

the first magnetic conduction plate is arranged below the bottom plate of the drawer body and is connected with the first end of the first magnetic conduction connecting part;

A first magnetic source sheet adhered to one side of the first magnetic conductive plate and

the second magnetic field member includes:

the second magnetic conduction plate is arranged above the top cover and is connected with the first end of the second magnetic conduction connecting part;

the second magnetic source sheet is attached to one side plate surface of the first magnetic conduction plate.

8. The fresh keeping storage drawer of claim 7, wherein

The first magnetic source sheet is attached to one side of the first magnetic guide plate, which faces the bottom plate of the drawer body;

the second magnetic source sheet is attached to one side, facing the top cover, of the second magnetic guide plate.

9. The fresh keeping storage drawer of claim 7, wherein

The first magnetic source sheet and the second magnetic source sheet are uniformly magnetized permanent magnet sheets respectively.

10. The fresh keeping storage drawer of claim 7, wherein

The first magnetic conduction plate, the second magnetic conduction plate, the first magnetic conduction connecting portion and the second magnetic conduction connecting portion are respectively made of high magnetic conductivity materials.

11. The fresh storage drawer of claim 3, wherein,

the fixing assembly further comprises a barrel body, and a forward opening is formed in the barrel body; the drawer body is drawably arranged in the barrel body from the front opening,

The second magnetic conduction connecting part is arranged close to the inner side of the barrel wall of the barrel body.

12. The fresh storage drawer according to any one of claims 1 to 11, wherein

The magnetic field is configured such that the effective magnetic field strength ranges from 10 to 100GS and the effective spacing ranges from 60 to 240mm.

13. A refrigerator, characterized by comprising:

the fresh storage drawer of any one of claims 1 to 12.

14. The refrigerator of claim 13, further comprising:

the box body is internally provided with at least a fresh-keeping storage compartment, and a refrigerating air duct is arranged at the rear side of the fresh-keeping storage compartment; and is also provided with

The fresh-keeping storing drawer is arranged in the fresh-keeping storing compartment, the back plate at the rear part of the fresh-keeping storing drawer is provided with an air supply opening and an air return opening, the air supply opening is used for communicating the refrigerating air channel, so that cold air in the refrigerating air channel is introduced into the air supply opening, and the cold air is returned to the refrigerating air channel from the air return opening after exchanging heat with the fresh-keeping storing drawer.

15. The refrigerator of claim 14, wherein

The fresh-keeping storing compartment is internally provided with a heat exchange air channel which surrounds the fresh-keeping storing drawer, and the heat exchange air channel is arranged around the fresh-keeping storing drawer from the air supply opening and is finally communicated to the air return opening.