Magnetic fluid display drawer for refrigerator and refrigerator

Abstract

The invention relates to the technical field of low-temperature storage, and discloses a magnetofluid display drawer for a refrigerator, the magnetofluid display drawer comprises a box body, a display part, a magnet assembly and a driving part, the box body comprises a front panel; the display part is arranged on the front panel, the display part is provided with a display space, and the display space is used for being filled with magnetic fluid; the magnet assembly is movably arranged in the box body corresponding to the display part, and when the position of the magnet assembly changes, the magnetofluid switches the display state under the magnetic force action of the magnet assembly; the driving part is configured to move in linkage with pulling of the box body, when the box body is pulled out, the driving part is triggered so as to drive the magnet assembly to move from the first position to the second position, and when the box body is pushed back, the driving part is triggered so as to drive the magnet assembly to move from the second position to the first position. By using the magnetic fluid display drawer disclosed by the invention, the display state of the magnetic body of the display part can be changed by drawing the drawer. The invention further discloses the refrigerator.

Description

Technical Field

[0001] This application relates to the technical field of cryogenic storage, for example, to a magnetic fluid display drawer and a refrigerator for a refrigerator. Background Art

[0002] Magnetic drawers can improve the freshness preservation effect of food ingredients. However, during daily use of magnetic drawers, it is difficult for users to directly identify the drawer as a magnetic drawer through its appearance.

[0003] In order to enable users to identify the drawer as a magnetic drawer, some refrigerator drawers are provided with display devices to prompt users. For example, a related art discloses a refrigerator drawer, including: a housing and an electromagnetic module. The housing includes a front shell and a bottom shell. The front shell is provided with a display slideway and a slider that can slide up and down along the display slideway. A magnet is arranged inside the slider; the electromagnetic module includes an electromagnet and a magnetic conduction element. The magnetic conduction element is arranged between the electromagnet and the display slideway to conduct the magnetic force generated by the electromagnet to the slider. Among them, the magnetic conduction element is inclined relative to the bottom shell to adjust the height of the magnetic field generated by the electromagnet, and further adjust the staying position of the slider in the display slideway. The refrigerator drawer in the related art drives the slider to slide up and down along the display track by the mutual attraction of the electromagnet and the magnet, enabling users to directly perceive the floating physical effect of the slider in the display track.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The suspension of the slider in the display slideway needs to be driven by an electromagnet and a magnetic conduction unit, which will result in a complex structure and high cost of the refrigerator drawer.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] Embodiments of the present disclosure provide a magnetic fluid display drawer and a refrigerator for a refrigerator, so as to better display the magnetic characteristics of the magnetic fluid display drawer.

[0009] In some embodiments, the refrigerator includes a cabinet, the cabinet being configured with a storage space. The magneto - fluid display drawer for the refrigerator includes a box body, a display portion, a magnet assembly, and a driving portion. Wherein, the box body includes a front panel; the display portion is disposed on the front panel, the display portion being configured with a display space for filling magneto - fluid; the magnet assembly is movably disposed corresponding to the display portion in the box body, and when the position of the magnet assembly changes, the magneto - fluid switches the display state under the magnetic force of the magnet assembly; the driving portion is configured to be linked with the pulling and pushing movement of the box body. When the box body is pulled out, the driving portion is triggered to drive the magnet assembly to move from a first position to a second position. When the box body is pushed back, the driving portion is triggered to drive the magnet assembly to move from the second position to the first position.

[0010] In some embodiments, the magnet assembly includes a rotating shaft and a magnet. The rotating shaft is disposed on the front panel; the magnet is rotatably disposed on the rotating shaft; the driving portion includes a driving rod, the driving rod being connected to the rotating shaft or the magnet. When the magneto - fluid display drawer is pushed back, the driving rod directly or indirectly contacts the cabinet and rotates to drive the magnet to rotate.

[0011] In some embodiments, the magnet assembly includes a sliding member and a magnet. The sliding member is slidably disposed on the front panel; the magnet is connected to the sliding member, and when the sliding member slides, the magnet moves with the sliding member; the driving portion includes: a driving rod, the first end of which is connected to the sliding member. When the magneto - fluid display drawer is pushed back, the driving rod directly or indirectly contacts the cabinet and moves to drive the magnet to move.

[0012] In some embodiments, the driving portion further includes a return spring. The return spring is disposed on the front panel, and in an initial state, the return spring positions the driving rod at the second position.

[0013] In some embodiments, the front panel includes a front side plate and a rear side plate. An accommodation space is formed between the front side plate and the rear side plate. The front side plate is provided with a display window. The display portion is disposed in the accommodation space corresponding to the display window, and the magnet is disposed in the accommodation space.

[0014] In some embodiments, the magneto - fluid display drawer further includes a slide rail. The slide rail includes a sliding rail and a fixed rail. The cabinet is connected to the sliding rail, and the fixed rail is fixed at the installation position of the magneto - fluid display drawer; wherein, when the drawer is pushed back, the second end of the driving rod abuts against the fixed rail to indirectly contact the cabinet.

[0015] In some embodiments, the slide rail further includes a driving mating part, which is arranged at the front end of the fixed rail, and the second end of the driving rod abuts against the driving mating part when the drawer is pushed back.

[0016] In some embodiments, the magneto - rheological fluid display drawer includes a first slide rail and a second slide rail, and the first slide rail and the second slide rail are respectively arranged on two opposite side walls of the storage space of the box body; the driving part includes a first driving rod and a second driving rod, the first driving rod is matched with the fixed rail of the first slide rail, the second driving rod is matched with the fixed rail of the second slide rail, the magnet assembly further includes a connecting piece and two sliding pieces, the connecting piece is connected to the two sliding pieces, and the magnet is fixed to the connecting piece.

[0017] In some embodiments, the box body further includes a left side plate and a right side plate. The left side plate is recessed inward to form a first groove for avoiding the first slide rail, and the first driving rod corresponds to the first groove; the right side plate is recessed inward to form a second groove for avoiding the second slide rail, and the second driving rod corresponds to the second groove.

[0018] In some embodiments, the refrigerator includes a box body and the above - mentioned magneto - rheological fluid display drawer. The box body is configured with a storage space, and the above - mentioned magneto - rheological fluid display drawer is slidably arranged in the storage space of the box body.

[0019] The magneto - rheological fluid display drawer and the refrigerator for a refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The information of the opening and closing state of the drawer is prompted through the magneto - rheological fluid, and the display effect is novel and dynamic; the display state of the magneto - rheological fluid is switched by the movement of the magnet of the magnet assembly, and the function is reliable; the driving part is driven to drive the magnet assembly to move by the opening and closing action of the drawer, and no additional electronic control unit needs to be set. The structure of the magneto - rheological fluid display drawer is simple and the cost is low.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0023] Figure 1 is a schematic structural diagram of a magneto - rheological fluid display drawer for a refrigerator provided by an embodiment of the present disclosure;

[0024] Figure 2It is a schematic structural diagram of a magnetic fluid display drawer for a refrigerator provided by an embodiment of the present disclosure after removing a part of the box body;

[0025] Figure 3 It is another schematic structural diagram of a magnetic fluid display drawer for a refrigerator provided by an embodiment of the present disclosure;

[0026] Figure 4 It is another schematic structural diagram of a magnetic fluid display drawer for a refrigerator provided by an embodiment of the present disclosure;

[0027] Figure 5 It is a display schematic diagram of the display part of a magnetic fluid display drawer for a refrigerator provided by an embodiment of the present disclosure when the magnet assembly is located at a position close to the display part;

[0028] Figure 6 It is a display schematic diagram of the display part of a magnetic fluid display drawer for a refrigerator provided by an embodiment of the present disclosure when the magnet assembly is located at a position far from the display part;

[0029] Figure 7 It is another schematic structural diagram of a magnetic fluid display drawer for a refrigerator provided by an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 110: Front panel; 111: Front side plate; 112: Rear side plate; 120: Left side plate; 121: First groove; 130: Right side plate; 131: Second groove; 200: Display part; 310: Rotating shaft; 320: Sliding part; 330: Magnet; 340: Connecting part; 410: Driving rod; 420: Return spring; 500: Slide rail; 510: Fixed rail; 520: Sliding rail; 530: Driving cooperation part. Detailed implementation manners

[0032] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner.

[0033] The terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the embodiments of the present disclosure are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] In addition, the terms "arrangement", "connection", and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] Unless otherwise specified, the term "plurality" means two or more.

[0037] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0038] The term "and / or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0039] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0040] The magnetic drawer can improve the freshness preservation effect of food ingredients. However, during daily use of the magnetic drawer, it is difficult for users to directly identify the drawer as a magnetic drawer through its appearance.

[0041] To enable users to identify magnetic drawers, some refrigerator drawers are equipped with display devices to prompt users. For example, a refrigerator drawer is disclosed in the related art, including: a housing and an electromagnetic module. The housing includes a front shell and a bottom shell. The front shell is provided with a display slideway and a slider that can slide up and down along the display slideway. A magnet is arranged inside the slider; the electromagnetic module includes an electromagnet and a magnetic conduction element. The magnetic conduction element is arranged between the electromagnet and the display slideway to conduct the magnetic force generated by the electromagnet to the slider. Among them, the magnetic conduction element is inclined relative to the bottom shell to adjust the height of the magnetic field generated by the electromagnet, and further adjust the staying position of the slider in the display slideway. In the refrigerator drawer in the related art, the electromagnet and the magnet attract each other to drive the slider to slide up and down along the display track, enabling users to directly perceive the floating physical effect of the slider in the display track. The problem with the related art is that the suspension of the slider in the display slideway needs to be driven by an electromagnet and a magnetic conduction unit, which results in a complex structure and high cost of the refrigerator drawer.

[0042] To better display the magnetic characteristics of the refrigerator drawer, in combination with Figures 1 to 7 As shown, an embodiment of the present disclosure provides a magnetic fluid display drawer for a refrigerator. The refrigerator includes a box body, and the box body is configured with a storage space. The magnetic fluid display drawer for the refrigerator includes a box body, a display part 200, a magnet assembly, and a driving part. Among them, the box body includes a front panel 110; the display part 200 is arranged on the front panel 110, and the display part 200 is configured with a display space for filling magnetic fluid; the magnet assembly is movably arranged in the box body corresponding to the display part 200. When the position of the magnet assembly changes, the magnetic fluid switches the display state under the magnetic force of the magnet assembly; the driving part is configured to be linked with the pulling and pushing of the box body. When the box body is pulled out, the driving part is triggered to drive the magnet assembly to move from the first position to the second position. When the box body is pushed back, the driving part is triggered to drive the magnet assembly to move from the second position to the first position.

[0043] In the embodiment of the present disclosure, the magnetic property prompt of the refrigerator is carried out through magnetic fluid. Magnetic fluid is a new type of functional material, also known as magnetic liquid or ferrofluid. It is composed of magnetic solid particles with diameters in the nanometer range (below 10 nanometers), a base carrier liquid (also known as a medium), and a surfactant, forming a stable colloidal liquid. This fluid has no magnetic attraction when static, but exhibits magnetism under the action of an external magnetic field.

[0044] Specifically, a display unit 200 is provided on the front panel 110 of the magneto-fluid display drawer. The display unit 200 is configured with a display space for filling with magneto-fluid and providing the space required for the movement or change of the magneto-fluid. The side of the display unit 200 facing the user is made of a transparent material to facilitate the user to observe the magneto-fluid pattern and movement state in the display space. Exemplarily, the filling amount of the magneto-fluid in the display space is 10% to 50% of the display space capacity. If the filling amount is too small, the pattern area formed during the movement of the magneto-fluid is small, and the prompting effect is not obvious; if the filling amount is too large, the movement and change of the magneto-fluid in the display space are not obvious, and the prompting effect is not obvious.

[0045] The magnet assembly is correspondingly arranged on the front panel 110 of the box body with respect to the display unit 200. The magnet assembly includes a magnet 330, and the magnet 330 is a permanent magnet. When the magnet 330 approaches the display unit 200, the magneto-fluid in the display space exhibits magnetic properties and is attracted by the magnet 330, so as to display a specific pattern and / or be in a specific position to present a first display state. When the magnet 330 moves away from the display unit 200, the magneto-fluid in the display space does not have magnetic properties and falls back to the bottom of the display space under the action of gravity. As a display implementation method, when the magnet 330 approaches the display unit 200, the magneto-fluid in the display space is located in the upper part of the display space; when the magnet 330 moves away from the display unit 200, the magneto-fluid in the upper part of the display space drops to the bottom of the display space in a water droplet shape. During the process of the magnet 330 moving from a position close to the display unit 200 to a position away from the display unit 200, the magneto-fluid in the display space falls from the upper part of the liquid medium; during the process of the magnet 330 moving from a position away from the display unit 200 to a position close to the display unit 200, the magneto-fluid in the display space suspends from the bottom of the display space to the top of the display space. When the magneto-fluid falls, it falls under the action of gravity, which conforms to the general understanding of users. When the magneto-fluid rises, it visually acts against gravity, which is likely to attract the attention of users, thereby deepening the user's impression that the drawer is a magnetic drawer.

[0046] The change in the position and shape of the magnetorheological fluid in the display unit 200 is achieved by changing the position of the magnet assembly. The movement of the magnet assembly is carried out by the drive unit. Specifically, the drive unit is linked to the pulling and pushing actions of the magnetorheological fluid display drawer. Specifically, when the drawer is pushed back, the drive unit is triggered by the pushing-back action of the drawer, thereby driving the magnet 330 of the magnet assembly to move to the first position. At this time, the magnet 330 approaches the display unit 200, and the magnetorheological fluid in the display space moves to the upper part of the display space and is in a suspended state. When the drawer is pulled out, the drive unit is triggered by the pulling-out action of the drawer, thereby driving the magnet 330 of the magnet assembly to move to the second position. At this time, the magnet 330 moves away from the display unit 200, and the magnetorheological fluid of the display control moves to the lower part of the display space. It should be noted that the magnetorheological fluid in the display space can provide a status indication of whether the magnetorheological fluid display drawer is pushed back in place, thereby reducing or avoiding the problem that the drawer is not closed tightly, which affects the freshness preservation effect of the food ingredients in the drawer.

[0047] The magnetorheological fluid display drawer for a refrigerator provided by the embodiments of the present disclosure uses magnetorheological fluid to provide information indication of the drawer switch state, with a novel and dynamic display effect; the display state of the magnetorheological fluid is switched by the movement of the magnet 330 of the magnet assembly, and the function is reliable; the drive unit is triggered by the opening and closing actions of the drawer to drive the magnet assembly to move, without the need to set up an additional electronic control unit, and the structure of the magnetorheological fluid display drawer is simple and the cost is low.

[0048] Optionally, the magnet assembly includes a rotating shaft 310 and a magnet 330. The rotating shaft 310 is disposed on the front panel 110; the magnet 330 is rotatably disposed on the rotating shaft 310; the drive unit includes a drive rod 410, and the drive rod 410 is connected to the rotating shaft 310 or the magnet 330. When the magnetorheological fluid display drawer is pushed back, the drive rod 410 comes into direct or indirect contact with the box body and rotates, thereby driving the magnet 330 to rotate.

[0049] As an implementation form in which the drive unit drives the magnet assembly to move, the magnet 330 rotates. When the magnet 330 rotates to an angle facing the display unit 200, the magnetic force between the magnet 330 and the magnetorheological fluid in the display space is stronger, driving the magnetorheological fluid to move upward; when the magnet 330 rotates to an angle away from the display unit 200, the magnetic force between the magnet 330 and the magnetorheological fluid in the display space is weaker, and the magnetorheological fluid in the display space falls to the bottom of the display space under the action of gravity.

[0050] To achieve the rotation of the magnet 330, the magnet assembly includes a rotating shaft 310 and a magnet 330. The rotating shaft 310 defines a rotation central axis for the rotation of the magnet 330. The rotating shaft 310 is horizontally arranged, and the magnet assembly can rotate with the rotating shaft 310 or rotate relative to the rotating shaft 310. The driving part includes a driving rod 410. As a connection method, one end of the driving rod 410 is connected to the rotating shaft 310, and the other end is a free end that is triggered to move. When the drawer is pushed back, the free end of the driving rod 410 is in sliding contact with the inner wall of the box body or other fixed accessory components provided on the inner wall of the box body, and rotates as the drawer is further pushed back. When the driving rod 410 rotates, it drives the rotating shaft 310 to rotate, so that the magnet 330 of the magnet assembly rotates to an angle close to the display part 200. When the drawer is pulled out, the free end of the driving rod 410 gradually disengages from the contact with the inner wall of the box body or other accessory components on the inner wall of the box body, and the rotating shaft 310 and the magnet 330 return to the initial position under the action of gravity or other reset auxiliary devices. As another connection method between the driving part and the magnet assembly, one end of the driving rod 410 is connected to the magnet 330, and the other end is a free end that is triggered to move. When the driving rod 410 rotates, it drives the magnet 330 to rotate relative to the rotating shaft 310.

[0051] The driving part of the magneto-fluid display drawer can change the angle of the magnet 330 through the driving rod 410, and the driving of the driving rod 410 is mechanically linked with the pulling and pushing actions of the drawer. With such a setting form, the driving structure is simple and reliable.

[0052] It should be noted that when the driving rod 410 is in direct contact with the inner wall of the box body, it is a direct contact, and when the driving rod 410 is in contact with other fixed accessory components on the inner wall of the box body, it is an indirect contact. Both of these forms can make the magnet 330 mechanically linked with the pulling and pushing of the drawer, thereby changing the display state of the magneto-fluid.

[0053] Optionally, the magnet assembly includes a sliding member 320 and a magnet 330. The sliding member 320 is slidably arranged on the front panel 110; the magnet 330 is connected to the sliding member 320, and the magnet 330 moves with the sliding member 320 when the sliding member 320 slides; the driving part includes: a driving rod 410, the first end of which is connected to the sliding member 320. When the magneto-fluid display drawer is pushed back, the driving rod 410 is in direct or indirect contact with the box body and moves, thereby driving the magnet 330 to move.

[0054] As another implementation form for the driving part to drive the magnet assembly to move, the magnet 330 is in a sliding form. When the magnet 330 slides to a position close to the display part 200, the magnetic force between the magnet 330 and the magneto-fluid in the display space is stronger, driving the magneto-fluid to move upward; when the magnet 330 slides to a position far from the display part 200, the magnetic force between the magnet 330 and the magneto-fluid in the display space is weaker, and the magneto-fluid in the display space falls to the bottom of the display space under the action of gravity.

[0055] To achieve the sliding of the magnet 330, the magnet assembly includes a slider 320 and a magnet 330. The slider 320 defines a sliding path for the sliding of the magnet 330. Exemplarily, the slider 320 is a slide bar. The slide bar extends in a direction substantially perpendicular to the front panel 110 of the drawer box body, and the sliding direction of the slide bar is along the axial direction of the slide bar. The driving part includes a driving rod 410. One end of the driving rod 410 is connected to the slider 320 or the magnet 330, and the other end is a free end. When the drawer is pushed back, the free end of the driving rod 410 abuts against the inner wall of the box body or other fixed accessory components provided on the inner wall of the box body, and drives the magnet 330 to slide to a position close to the display part 200 as the drawer is pushed back. When the drawer is pulled out, the free end of the driving rod 410 disengages from the contact with the inner wall of the box body or other fixed accessory components on the inner wall of the box body, and the slider 320 or the magnet 330 returns to the dehumidifying position under the action of gravity or other reset assisting devices.

[0056] The magneto-fluid display drawer can change the position of the magnet 330 through the driving rod 410, and the driving rod 410 is mechanically linked with the pulling and pushing actions of the drawer. With such a setting form, the driving structure is simple and reliable.

[0057] Optionally, the driving rod 410 and the slide bar are of an integral structure.

[0058] The sliding rod and the slide bar are the same rod body. One end of the rod body extends towards the storage space of the box body, and the extended part serves as the driving rod 410. With such a setting form, the cost of the magneto-fluid display drawer can be further reduced.

[0059] Optionally, the driving part further includes a return spring 420. The return spring 420 is arranged on the front panel 110, and the return spring 420 makes the driving rod 410 in a second position in the initial state.

[0060] The return spring 420 is used to make the magnet 330 in the second position when the drawer is pulled out. In the case where the magnet 330 is in a rotating form, the return spring 420 is a torsion spring, and the torsion spring makes the magnet 330 in an angle away from the display part 200 in the initial state. In the case where the magnet 330 is in a sliding form, the return spring 420 is a compression spring. One end of the compression spring is connected to the sliding rod, and the other end elastically presses against the inner side of the front panel 110 of the box body inward. With such a setting form, under the application of an external force, the magnet 330 is in a position away from the display part 200. When the drawer is pushed back, the driving rod 410 does work under the thrust to drive the spring to rotate or move. With such a setting form, it is beneficial for the magneto-fluid display drawer to have clear and definite first and second positions, so as to better prompt the opening and closing states of the drawer, and prompt the magnetic characteristics of the magnetic refrigerator during the dynamic change when opening and closing the drawer.

[0061] Optionally, the front panel 110 includes a front side plate 111 and a rear side plate 112. An accommodation space is formed between the front side plate 111 and the rear side plate 112. A display window is provided on the front side plate 111. The display unit 200 is disposed in the accommodation space corresponding to the display window, and the magnet 330 is disposed in the accommodation space.

[0062] The front panel 110 of the box body includes a front side plate 111 and a rear side plate 112. The display photo paper is located in the interlayer between the front panel 110 and the rear panel. This can make the magnetic fluid display drawer have a neat and beautiful appearance both inside and outside. The magnet 330 is also disposed in the accommodation space, which can reduce or avoid demagnetization of the magnet 330 during use or magnetization of other components.

[0063] Optionally, the accommodation space is filled with heat-insulating material.

[0064] This can reduce the heat exchange between the inside and outside of the box body, thereby improving the heat preservation effect of the magnetic fluid display drawer.

[0065] Optionally, the magnetic fluid display drawer further includes a slide rail 500. The slide rail 500 includes a sliding rail 520 and a fixed rail 510. The box body is connected to the sliding rail 520, and the fixed rail 510 is fixed to the installation position of the magnetic fluid display drawer; wherein, when the drawer is pushed back, the second end of the driving rod 410 abuts against the fixed rail 510 so as to be indirectly in contact with the box body.

[0066] The magnetic fluid display drawer includes a slide rail 500, which can make the pulling of the magnetic fluid display drawer smoother.

[0067] The slide rail 500 includes a sliding rail 520 and a fixed rail 510. In the use state, the fixed rail 510 is installed on the inner wall of the box body, and the sliding rail 520 is fixed to the drawer box body so that the drawer can be pulled out from the box body.

[0068] The fixed rail 510 serves as the above-mentioned "other fixed accessory components fixed to the inner wall of the box body" and plays a role in cooperating with the driving rod 410. Specifically, when the drawer is pushed back, the driving rod 410 contacts the front end of the fixed rail 510, thereby driving the magnet 330 of the magnet assembly to rotate or slide. In this case, no other structure cooperating with the driving rod 410 needs to be provided inside the box body, and only the fixed rail 510 of the slide rail 500 needs to be installed. By adopting such a setting form, the use adaptability of the magnetic fluid display drawer can be improved, which is beneficial to assembling the magnetic fluid display drawer to a new refrigerator or adding it to an old refrigerator.

[0069] Optionally, the slide rail 500 further includes a driving cooperation portion 530. The driving cooperation portion 530 is disposed at the front end of the fixed rail 510, and the second end of the driving rod 410 abuts against the driving cooperation portion 530 when the drawer is pushed back.

[0070] The front end of the fixed rail 510 is provided with a driving mating part 530, and the driving mating part 530 cooperates with the driving rod 410 of the driving part. With such a setting form, the length of the fixed rail 510 is not limited, and the driving mating part 530 can be better engaged with the driving rod 410.

[0071] Optionally, the front end of the driving mating part 530 is configured with a groove, and the opening size of the groove is larger than the size of the free end of the driving rod 410.

[0072] In this case, even if the driving rod 410 cannot be accurately docked with the driving mating part 530, the free end of the driving rod 410 can still enter the groove, thereby driving the magnet 330 to rotate or move.

[0073] Optionally, the front end of the driving mating part 530 is provided with a first magnetic attracting part, and the free end of the driving rod 410 is provided with a second magnetic attracting part.

[0074] With such a setting form, the driving part can be better engaged with the driving mating part 530.

[0075] Optionally, the magneto - fluid display drawer includes a first slide rail 500 and a second slide rail 500. The first slide rail 500 and the second slide rail 500 are respectively arranged on two opposite side walls of the storage space of the box body; the driving part includes a first driving rod 410 and a second driving rod 410. The first driving rod 410 cooperates with the fixed rail 510 of the first slide rail 500, the second driving rod 410 cooperates with the fixed rail 510 of the second slide rail 500. The magnet assembly further includes a connecting piece 340 and two sliding pieces 320. The connecting piece 340 is connected to the two sliding pieces 320, and the magnet 330 is fixed to the connecting piece 340.

[0076] The magneto - fluid display drawer includes a first slide rail 500 and a second slide rail 500, which can make the drawing of the magneto - fluid display drawer smoother.

[0077] The driving part includes a first driving rod 410 and a second driving rod 410, which can make the forces on both sides of the drawer evenly distributed when the drawer is drawn, reducing or avoiding the left - right torsion of the drawer and thus affecting the drawing of the drawer.

[0078] The magnet assembly includes two sliding pieces 320, which are respectively located on both sides. The connecting piece 340 is arranged along the left - right direction of the front panel 110 and its two ends are respectively connected to the two sliding pieces 320.

[0079] The magnet 330 is fixed to the connecting piece 340, so that the display part 200 can be set at the middle position of the front panel 110 without being restricted by the positions of the two fixed rails 510, which is beneficial for observing the shape and motion state of the magneto - fluid in the display part 200.

[0080] In addition, the magnet 330 slides through two sliders 320. When the magnet 330 moves, it is not likely to deviate left and right, which is beneficial to the presentation of the magnetorheological fluid pattern of the display unit 200.

[0081] Optionally, the box body further includes a left side plate 120 and a right side plate 130. The left side plate 120 is recessed inward to form a first groove 121 for avoiding the first slide rail 500, and the first driving rod 410 corresponds to the first groove 121. The right side plate 130 is recessed inward to form a second groove 131 for avoiding the second slide rail 500, and the second driving rod 410 corresponds to the second groove 131.

[0082] With such a setting form, the inner wall of the refrigerator body does not need to be constructed with slide rail 500 grooves for adapting to the magnetorheological fluid display drawer, which reduces the manufacturing difficulty of the refrigerator and is beneficial to the adaptation of the magnetorheological fluid display drawer to different refrigerators. In addition, when the drawer is pushed back, the front panel 110 of the box body can block the first groove 121 and the second groove 131, and the overall appearance of the refrigerator is more beautiful.

[0083] Optionally, the magnetorheological fluid display drawer further includes a plurality of fresh-keeping magnets, and the plurality of fresh-keeping magnets are arranged at intervals in the box body of the magnetorheological fluid display drawer.

[0084] The fresh-keeping magnets and the magnet 330 of the magnet assembly are used to generate a magnetic field acting inside the drawer. When food is placed in the magnetic field, the movement state of water molecules in the food will change, generating tiny currents and heat, thereby changing the molecular structure of the food, inhibiting the reproduction of bacteria, slowing down the oxidation and spoilage process of the food, and achieving the fresh-keeping effect. In addition, the magnetic field can also affect the enzyme activity in the food and delay the metabolism of the food, further prolonging the fresh-keeping period.

[0085] With such a setting form, the fresh-keeping effect of the magnetorheological fluid display drawer can be improved. In addition, this can make the magnetic property prompt of the magnetorheological fluid display drawer unified with the magnetic properties of the magnetorheological fluid display drawer itself.

[0086] Optionally, the magnet 330 of the magnet assembly is in the shape of a water droplet.

[0087] In this case, when the magnet 330 approaches the display unit 200, the magnetorheological fluid in the display space is in the shape of a water droplet. Whether the water-droplet-shaped magnetorheological fluid falls or the magnetorheological fluid moves upward and becomes water-droplet-shaped, it has good dynamic effects.

[0088] Combined with Figures 1 to 7 As shown in the figure, an embodiment of the present disclosure provides a refrigerator, which includes a box body and the above-mentioned magnetorheological fluid display drawer. Among them, the box body is constructed with a storage space; the above-mentioned magnetorheological fluid display drawer is slidably arranged in the storage space of the box body.

[0089] The refrigerator provided by the embodiments of the present disclosure uses magnetorheological fluid to provide information on the open / closed state of the drawer, with a novel and dynamic display effect. The display state of the magnetorheological fluid is switched by the movement of the magnet 330 of the magnet assembly, ensuring reliable functionality. The movement of the magnet assembly is triggered by the opening and closing actions of the drawer, driving the driving part, eliminating the need for an additional electronic control unit. The structure of the magnetorheological fluid display drawer is simple and cost-effective.

[0090] Optionally, the display part includes a transparent partition, which is vertically arranged to divide the display space into multiple display units, and each display unit is filled with magnetorheological fluid.

[0091] When the magnet of the magnet assembly moves to a position close to the display part, the magnetorheological fluid in each display unit moves upward in suspension. In this way, in the front-to-back direction, the magnetorheological fluids in the multiple display units are superimposed to form a three-dimensional pattern. When the displayed pattern is a water droplet, the water droplet in the display part is a three-dimensional water droplet that can be observed from multiple angles. In addition, the display space is divided into multiple display units, and each display unit can be filled with magnetorheological fluids of different colors and properties, thus achieving different display effects.

[0092] Adopting such a setting form can further improve the display effect of the magnetorheological fluid display refrigerator.

[0093] The above description and the drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A magnetic fluid display drawer for a refrigerator, characterized in that, The refrigerator includes a cabinet body which is configured with a storage space. The magneto - fluid display drawer includes: A box body including a front panel; A display part arranged on the front panel. The display part is configured with a display space for filling magneto - fluid; A magnet assembly which is movably arranged on the box body corresponding to the display part. When the position of the magnet assembly changes, the magneto - fluid switches its display state under the magnetic force of the magnet assembly; A driving part which is configured to be linked with the pulling - out and pushing - in movement of the box body. When the box body is pulled out, the driving part is triggered to drive the magnet assembly to move from a first position to a second position. When the box body is pushed back, the driving part is triggered to drive the magnet assembly to move from the second position to the first position.

2. The magneto - fluid display drawer according to claim 1, wherein: The magnet assembly includes: A rotating shaft arranged on the front panel; A magnet rotatably arranged on the rotating shaft; The driving part includes: A driving rod connected to the rotating shaft or the magnet. When the magneto - fluid display drawer is pushed back, the driving rod comes into direct or indirect contact with the cabinet body and rotates to drive the magnet to rotate.

3. The magneto - fluid display drawer according to claim 1, wherein: The magnet assembly includes: A sliding part slidably arranged on the front panel; A magnet connected to the sliding part. When the sliding part slides, the magnet moves along with the sliding part; The driving part includes: A driving rod, the first end of which is connected to the sliding part. When the magneto - fluid display drawer is pushed back, the driving rod comes into direct or indirect contact with the cabinet body and moves to drive the magnet to move.

4. The magneto-fluid display drawer according to claim 2 or 3, characterized in that, The driving part further includes: A return spring arranged on the front panel. In the initial state, the return spring positions the driving rod at the second position.

5. The magneto - fluid display drawer according to claim 2 or 3, wherein: The front panel includes a front side panel and a rear side panel. An accommodation space is formed between the front side panel and the rear side panel. The front side panel is provided with a display window. The display part is arranged in the accommodation space corresponding to the display window, and the magnet is arranged in the accommodation space.

6. The magneto-fluid display drawer according to claim 2 or 3, characterized in that, It further includes: A slide rail including a fixed rail which is fixed at the installation position of the magneto - fluid display drawer; Wherein, when the drawer is pushed back, the second end of the driving rod abuts against the fixed rail to indirectly contact the cabinet body.

7. The magneto - fluid display drawer according to claim 6, wherein: The slide rail further includes a driving cooperation part arranged at the front end of the fixed rail. When the drawer is pushed back, the second end of the driving rod abuts against the driving cooperation part.

8. The magneto - fluid display drawer according to claim 7, wherein: The magneto - fluid display drawer includes a first slide rail and a second slide rail which are respectively arranged on two opposite side walls of the storage space of the cabinet body; The driving part includes a first driving rod and a second driving rod. The first driving rod cooperates with the fixed rail of the first slide rail, and the second driving rod cooperates with the fixed rail of the second slide rail. The magnet assembly further includes a connecting member and two sliding members. The connecting member is connected to the two sliding members, and the magnet is fixed to the connecting member.

9. The magneto-fluid display drawer according to claim 8, wherein The box body further includes a left side plate and a right side plate. The left side plate is recessed inward to form a first groove for avoiding the first slide rail, and the first driving rod corresponds to the first groove; the right side plate is recessed inward to form a second groove for avoiding the second slide rail, and the second driving rod corresponds to the second groove.

10. A refrigerator, characterized in that, Comprising: A box body configured with a storage space; And, The magneto-fluid display drawer according to any one of claims 1 to 9, slidably disposed in the storage space of the box body.

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