Display box body and display equipment

Abstract

The utility model relates to a display box and display equipment. The display box comprises a mounting seat; the magnetic attraction body is mounted on the mounting seat, the magnetic attraction body has a first direction, the magnetic attraction body comprises at least two magnetic attraction layers which are stacked in the first direction, and each magnetic attraction layer is provided with a first magnetic pole part and a second magnetic pole part; wherein the magnetism of the first magnetic pole part and the magnetism of the second magnetic pole part in each magnetic attraction layer are different, and in any two adjacent magnetic attraction layers, the first magnetic pole part and the second magnetic pole part are arranged in an aligned mode in the first direction; and the lamp panel is arranged on the mounting seat and is in magnetic connection with the magnetic body. Magnetic fields generated by the first magnetic pole part and the second magnetic pole part which are different in magnetism can interact with each other, so that the overall magnetic field distribution of the magnetic attraction body is reduced, the magnetic flux on the front face of the lamp panel is effectively reduced after the lamp panel is installed on the installation base, the dust adsorption effect is greatly reduced, dust is not prone to being adsorbed to the surface of a screen, and the service life of the screen is prolonged. The black shadow phenomenon is avoided when the light-color picture is played, and the display effect is ensured.

Description

Technical Field

[0001] This application relates to the technical field of display devices, and in particular to a display cabinet and display equipment. Background Technology

[0002] The widespread application of various display devices has greatly facilitated people's lives, studies, and work. The role of the backlight panel in a display device is to provide the necessary light source so that images are clearly visible; therefore, the backlight panel plays a very important role in display devices.

[0003] Compared to traditional screw mounting, magnetic mounting, which uses magnets to fix the light panel, offers greater convenience, stability, and cost-effectiveness, and is therefore more widely used. However, the magnets used in traditional technology have a large magnetic field distribution. When the light panel is magnetically mounted on top of the magnet, there is a large magnetic flux on the front of the light panel, which easily attracts dust to the screen surface. This causes a dark shadow to appear on the screen corresponding to the magnet when displaying light-colored images, affecting the display effect. Utility Model Content

[0004] Therefore, it is necessary to provide a display cabinet and display device to address the problem of dust adhering to the screen and causing black shadows that affect the display effect.

[0005] A first aspect of this application provides a display enclosure comprising:

[0006] Mounting base;

[0007] A magnetic attractor is mounted on the mounting base. The magnetic attractor has a first direction and includes at least two magnetic layers stacked along the first direction. Each magnetic layer has a first magnetic pole portion and a second magnetic pole portion. The first and second magnetic pole portions in each magnetic layer have opposite magnetic properties, and in any two adjacent magnetic layers, the first and second magnetic pole portions are aligned along the first direction.

[0008] A light panel is disposed on the mounting base and magnetically connected to the magnetic body.

[0009] In this solution, the magnetic chuck is installed in the mounting base of the display cabinet, and then the lamp panel is placed on the mounting base. The magnetic chuck can attract and fix the lamp panel to achieve lamp panel installation and positioning. Since the magnetic chuck is composed of at least two magnetic layers stacked along its first direction, and each magnetic layer includes a first magnetic pole part and a second magnetic pole part arranged in the same plane, and at the same time, in two adjacent magnetic layers, the first magnetic pole part and the second magnetic pole part are aligned along the first direction. This causes the magnetic fields generated by the first magnetic pole part and the second magnetic pole part with different magnetic properties to interact, thereby reducing the overall magnetic field distribution of the magnetic chuck. As a result, when the lamp panel is installed on the mounting base, the magnetic flux on the front of the lamp panel is effectively reduced, thereby greatly reducing the adsorption of dust, making it difficult for dust to adhere to the screen surface, avoiding the black shadow phenomenon when playing light-colored images, and ensuring the display effect.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, each of the magnetic layers has at least two first magnetic pole portions and at least two second magnetic pole portions, the first magnetic pole portions and the second magnetic pole portions being arranged alternately along the circumferential direction of the magnetic layer.

[0012] In one embodiment, the magnetic layer is arranged in a circular structure, and the magnetic layer includes two first magnetic pole portions and two second magnetic pole portions. The first magnetic pole portions and the second magnetic pole portions are arranged alternately along the circumferential direction of the magnetic layer, and the fan-shaped area of ​​the first magnetic pole portions is equal in size to the fan-shaped area of ​​the second magnetic pole portions.

[0013] In one embodiment, the magnetic layer is arranged in a square structure, and the magnetic layer includes two first magnetic pole portions and two second magnetic pole portions, which are arranged alternately along the circumferential direction of the magnetic layer.

[0014] Wherein, when both the first magnetic pole portions and both the second magnetic pole portions are arranged in a diagonal structure, the square area of ​​the first magnetic pole portions is equal in size to the square area of ​​the second magnetic pole portions; or, when both the first magnetic pole portions and both the second magnetic pole portions are arranged in a side-to-side structure, the triangular area of ​​the first magnetic pole portions is equal in size to the triangular area of ​​the second magnetic pole portions.

[0015] In one embodiment, the magnetic attractor includes a metal substrate, on which a first magnetized region and a second magnetized region are disposed, the first magnetized region forming a first magnetic pole portion, and the second magnetized region forming a second magnetic pole portion.

[0016] In one embodiment, the mounting base has a mounting portion facing the lamp panel, and the magnetic attractor is disposed on the mounting portion.

[0017] In one embodiment, the mounting part includes a mounting groove, and the magnetic body is engaged in the mounting groove.

[0018] In one embodiment, the display housing further includes an elastic retaining ring, which is fitted around the periphery of the magnetic body. The magnetic body and the elastic retaining ring are engaged in the mounting groove. The outer wall of the elastic retaining ring elastically abuts against the side wall of the mounting groove. The elastic retaining ring has at least one lifting portion. The mounting base also has a notch that communicates with the mounting groove. The lifting portion passes through the notch and extends to the outside of the mounting base.

[0019] In one embodiment, the display enclosure further includes a housing, on the inner sidewall of the housing facing the lamp panel, a support column is provided, one of the support column and the mounting base is provided with a plug-in protrusion, and the other of the support column and the mounting base is provided with a plug-in hole, the plug-in protrusion being inserted into the plug-in hole.

[0020] In one embodiment, the inner sidewall of the housing is further provided with reinforcing ribs, which are connected to the support column.

[0021] A second aspect of this application also provides a display device comprising a plurality of display cabinets as described in any of the above embodiments, wherein the plurality of display cabinets are spliced ​​and assembled. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a partial structural diagram of a display cabinet according to one embodiment.

[0025] Figure 2 for Figure 1 A partial diagram of the exploded structure.

[0026] Figure 3This is a front view schematic diagram of a magnetic chuck according to an embodiment.

[0027] Figure 4 for Figure 3 A side view structural diagram.

[0028] Figure 5 This is a front view schematic diagram of the magnetic chuck of another embodiment.

[0029] Figure 6 This is a front view structural schematic diagram of a magnetic chuck according to another embodiment.

[0030] Figure 7 This is a diagram showing the distribution of magnetic flux on the front of the lamp panel in the prior art.

[0031] Figure 8 This is a diagram showing the distribution of magnetic flux on the front of the lamp panel in this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Display cabinet; 10. Mounting base; 11. Mounting part; 20. Magnetic body; 21. Magnetic layer; 211. First magnetic pole part; 212. Second magnetic pole part; 30. Lamp panel; 40. Housing; 41. Support column; 42. Reinforcing rib. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] The lamp panel 30 plays a crucial role in display devices by providing the necessary light source. Magnetic mounting of the lamp panel 30 offers greater convenience, stability, and cost-effectiveness, leading to its wider adoption. However, the magnets used in traditional techniques have a relatively large magnetic field distribution. When the lamp panel 30 is magnetically mounted above the magnet, a significant magnetic flux will exist on the front side of the lamp panel 30 (please refer to...). Figure 7 It easily attracts dust to the screen surface, causing a dark shadow to appear on the area of ​​the screen corresponding to the magnet when displaying light-colored images, thus affecting the display effect.

[0041] To address the problems existing in the prior art, this application proposes a new mounting structure for the lamp panel 30. By redesigning and optimizing the structure and magnetic pole distribution of the magnetic accumulator 20, the magnetic fields between different magnetic poles interact, thereby reducing the magnetic flux present on the front side of the lamp panel 30 after installation, weakening the magnetic field's attraction to dust, and thus reducing the amount of dust adsorbed onto the screen surface, avoiding the formation of shadows, and ensuring the display effect.

[0042] Specifically, please refer to Figure 1 and Figure 2 This is a partial structural diagram of a display cabinet 100 according to an embodiment of this application, which includes a mounting base 10, a magnetic accumulator 20, and a lamp panel 30.

[0043] Mounting base 10 is used to mount and fix magnetic body 20, and magnetic body 20 is used to magnetically position light panel 30.

[0044] The lamp panel 30 has a light-emitting surface and a mounting surface, which are two opposite sides of the lamp panel 30. When the lamp panel 30 is installed, the light-emitting surface faces away from the mounting base 10 and the magnetic accumulator 20, while the mounting surface faces the mounting base 10 and is attached to the magnetic accumulator 20 for installation.

[0045] Optionally, the mounting surface is made of a magnetic or metallic material that can form a magnetic connection with the magnetic body 20.

[0046] For example, a metal connecting block is provided on the mounting surface, and the connecting block is magnetically fixed to the magnetic body 20 to achieve magnetic positioning of the lamp panel 30.

[0047] Please continue reading. Figure 3 and Figure 4 The magnetic accumulator 20 is mounted on the mounting base 10. The magnetic accumulator 20 has a first direction and includes at least two magnetic layers 21 stacked along the first direction. Each magnetic layer 21 has a first magnetic pole portion 211 and a second magnetic pole portion 212. The first magnetic pole portion 211 and the second magnetic pole portion 212 in each magnetic layer 21 have different magnetic properties, and in any two adjacent magnetic layers 21, the first magnetic pole portion 211 and the second magnetic pole portion 212 are aligned along the first direction. The lamp panel 30 is disposed on the mounting base 10 and magnetically connected to the magnetic accumulator 20.

[0048] For example, the first direction specifically refers to the thickness direction of the magnetic accumulator 20, such as... Figure 4The arrow S1 in the diagram points in the direction of the magnetic accumulator. Of course, in other embodiments, depending on the shape and structure of the magnetic accumulator 20, the first direction can also refer to the length direction, width direction, axial direction, etc. of the magnetic accumulator 20, and can be flexibly selected according to actual needs.

[0049] It should be noted that the first magnetic pole portion 211 and the second magnetic pole portion 212 in each magnetic suction layer 21 can be arranged in a coplanar manner or not in a coplanar manner.

[0050] The coplanar arrangement can be understood as the first magnetic pole portion 211 and the second magnetic pole portion 212 being disposed in the same plane. For example, in combination with Figure 4 As can be seen, the first magnetic pole portion 211 and the second magnetic pole portion 212 are located in the same vertical plane and are aligned on the left and right sides in the S1 direction.

[0051] Please continue reading. Figure 1 and Figure 2 Furthermore, the display enclosure 100 also includes a housing 40. A support column 41 protrudes from the inner wall of the housing 40 facing the lamp panel 30. One of the support column 41 and the mounting base 10 has a connecting protrusion, and the other has a connecting hole. The connecting protrusion is inserted into the connecting hole. Therefore, by inserting the connecting protrusion into the connecting hole, the mounting base 10 and the support column 41 are assembled and fixed, thereby fixing the lamp panel 30 in the housing 40 via the magnetic 20 and the mounting base 10.

[0052] For example, in this application, the inner wall of the housing 40 is provided with a plurality of support columns 41 arranged in a dispersed manner, and the mounting base 10 is also provided with a plurality of support columns 41 and installed in a one-to-one correspondence. Each mounting base 10 is provided with a magnetic body 20, so that the multiple magnetic bodies 20 simultaneously magnetically attract and position the lamp plate 30, thereby improving the stability and reliability of the lamp plate 30 installation.

[0053] It is easy to understand that the magnetic accumulator 20 is magnetically positioned with the lamp panel 30. The magnetic accumulator 20 can be in contact with the lamp panel 30 or there can be an assembly gap, as long as the magnetic accumulator 20 generates a magnetic force on the lamp panel 30 to achieve the effect of positioning the lamp panel 30. No specific limitation is made here.

[0054] Typically, the support column 41 is a slender cylinder. It is positioned at a certain height perpendicular to the inner wall of the housing 40 to prevent the lamp panel 30 from interfering with other components inside the housing 40 after installation. The diameter of the support is kept as small as possible to minimize the space occupied inside the housing 40, but this also means a slight sacrifice in the strength of the support column 41. To address this, in an optional embodiment, to ensure the reliability of the support column 41, a reinforcing rib 42 is also provided on the inner wall of the housing 40, and the reinforcing rib 42 is connected to the support column 41.

[0055] Specifically, the reinforcing rib 42 is connected at the corner between the root of the support column 41 and the inner wall of the shell 40, providing structural support and reinforcement for the support column 41, thereby improving the reliability of the support column 41 and preventing the support column 41 from bending, deforming, or even breaking.

[0056] The reinforcing rib 42 can be integrally formed with the support column 41 or it can be detachably assembled, depending on the actual needs.

[0057] Please combine Figure 8 In summary, implementing the technical solution of this embodiment will achieve the following beneficial effects: In the display cabinet 100 of this solution, the magnetic accumulator 20 is installed in the mounting base 10, and then the lamp panel 30 is placed on the mounting base 10. The magnetic accumulator 20 can attract and fix the lamp panel 30 to achieve the installation and positioning of the lamp panel 30; since the magnetic accumulator 20 is composed of at least two magnetic layers 21 stacked along its first direction, and each magnetic layer 21 includes a first magnetic pole portion 211 and a second magnetic pole portion 212 arranged in a coplanar manner, and at the same time, in adjacent magnetic layers 21... In layer 21, the first magnetic pole portion 211 and the second magnetic pole portion 212 are aligned along the first direction. This causes the magnetic fields generated by the first magnetic pole portion 211 and the second magnetic pole portion 212, which have different magnetic properties, to interact with each other. This reduces the overall magnetic field distribution of the magnetic absorber 20. As a result, when the lamp board 30 is installed on the mounting base 10, the magnetic flux on the front of the lamp board 30 is effectively reduced, which greatly reduces the adsorption of dust. This makes it difficult for dust to adhere to the screen surface, avoids the phenomenon of black shadows when playing light-colored images, and ensures the display effect.

[0058] Experimental tests revealed that the magnetic flux measured on the surface of the lamp panel 30 was reduced by 99.7% compared to the magnetic flux of the magnetic chuck 20 itself. The magnetic field generated by the magnetic chuck 20 in this design is basically unable to penetrate to the surface of the lamp panel 30.

[0059] Optionally, when the polarity of the first magnetic pole portion 211 is S pole, the polarity of the second magnetic pole portion 212 is N pole; or when the polarity of the first magnetic pole portion 211 is N pole, the polarity of the second magnetic pole portion 212 is S pole.

[0060] Furthermore, based on the above embodiments, each magnetic absorbing layer 21 has at least two first magnetic pole portions 211 and at least two second magnetic pole portions 212, with the first magnetic pole portions 211 and the second magnetic pole portions 212 arranged alternately along the circumferential direction of the magnetic absorbing layer 21.

[0061] On the one hand, increasing the number of first magnetic pole portions 211 and second magnetic pole portions 212 in each magnetic layer 21 can effectively increase the magnetic attraction force of the magnetic body 20, so that the lamp panel 30 can be more firmly magnetically positioned on the mounting base 10. On the other hand, the magnetic fields generated by the alternating arrangement of the first magnetic pole portions 211 and the second magnetic pole portions 212 can also interact more effectively, so as to further reduce the magnetic flux on the front side of the lamp panel 30, thereby reducing the amount of dust adsorbed onto the screen surface.

[0062] It should be noted that the screen mentioned in this article specifically refers to the display screen. The display screen is stacked and installed on the side of the lamp board 30 away from the housing 40, that is, the light-emitting surface (i.e., the front) of the lamp board 30 faces the display screen. Because the display screen is very close to the lamp board 30, the magnetic flux generated on the light-emitting surface of the lamp board 30 can reach the display surface of the display screen, causing dust in the environment to be attracted to the display surface of the display screen.

[0063] Please continue reading. Figure 3 and Figure 4 Furthermore, based on any of the above embodiments, in an optional embodiment, the magnetic absorbing layer 21 is arranged in a circular structure. The magnetic absorbing layer 21 includes two first magnetic pole portions 211 and two second magnetic pole portions 212. The first magnetic pole portions 211 and the second magnetic pole portions 212 are arranged alternately along the circumferential direction of the magnetic absorbing layer 21, and the fan-shaped area distributed by the first magnetic pole portions 211 is equal in size to the fan-shaped area distributed by the second magnetic pole portions 212.

[0064] On the one hand, since the magnetic layer 21 has a circular structure, the magnetic body 20 also has a circular structure, making it easier to install the magnetic body 20 onto the mounting base 10. On the other hand, designing the fan-shaped areas of the first magnetic pole portion 211 and the second magnetic pole portion 212 to be of equal size not only facilitates manufacturing, but also ensures that the magnetic field generated by the first magnetic pole portion 211, which has different magnetic properties, is basically the same as that generated by the second magnetic pole portion 212. This results in a smaller overall magnetic field distribution of the magnetic body 20 after the interaction of various magnetic fields, thereby more effectively reducing the magnetic flux on the front of the lamp panel 30.

[0065] Please continue reading. Figure 5 and Figure 6 Alternatively, as an alternative to the above embodiments, in another optional embodiment, the magnetic absorbing layer 21 is arranged in a square structure, and the magnetic absorbing layer 21 includes two first magnetic pole portions 211 and two second magnetic pole portions 212, with the first magnetic pole portions 211 and the second magnetic pole portions 212 arranged alternately along the circumferential direction of the magnetic absorbing layer 21.

[0066] When both the two first magnetic pole portions 211 and the two second magnetic pole portions 212 are arranged diagonally, the square area of ​​the first magnetic pole portions 211 is equal to the square area of ​​the second magnetic pole portions 212; or, when both the two first magnetic pole portions 211 and the two second magnetic pole portions 212 are arranged opposite sides, the triangular area of ​​the first magnetic pole portions 211 is equal to the triangular area of ​​the second magnetic pole portions 212.

[0067] This embodiment achieves essentially the same technical effects as the above embodiments, so it will not be described in detail here.

[0068] It should be noted that in other optional embodiments, the magnetic layer 21 can also be configured in other shapes or structures, and can be flexibly selected according to actual needs.

[0069] Specifically, in one embodiment of this application, the magnetic absorber 20 includes a metal substrate, on which a first magnetized region and a second magnetized region are provided. The first magnetized region forms a first magnetic pole portion 211, and the second magnetized region forms a second magnetic pole portion 212.

[0070] In other words, the magnetic accumulator 20 is manufactured by magnetizing a metal substrate to form a first magnetic pole portion 211 and a second magnetic pole portion 212 with magnetic properties. This makes the processing and forming of the magnetic accumulator 20 simpler and makes it easier to flexibly control the shape and size of the first and second magnetized areas to obtain the first magnetic pole portion 211 and the second magnetic pole portion 212 that meet the needs of use.

[0071] In addition, compared to using natural magnets to manufacture the magnetic accumulator 20, where the magnetic field size is greatly random and uncertain due to the influence of the magnet composition, using a magnetization method to manufacture the magnetic accumulator 20 makes it easier to precisely control the magnetic field size of the first magnetic pole part 211 and the second magnetic pole part 212, so that the magnetic flux with small interaction between the two magnetic fields is as small as possible, thus effectively solving the problem of dust adsorption affecting the display effect.

[0072] Please continue reading Figure 1 and Figure 2 In another embodiment, the mounting base 10 is provided with a mounting portion 11, which faces the lamp panel 30, and the magnetic 20 is disposed on the mounting portion 11. By providing the mounting portion 11 on the mounting base 10, the magnetic 20 can be fixed to the mounting portion 11, making it convenient for the magnetic 20 and the mounting base 10 to be assembled into one unit.

[0073] More specifically, the mounting part 11 includes a mounting groove, and the magnetic body 20 is snapped into the mounting groove. During installation, the magnetic body 20 is inserted into the mounting groove, and the installation method is simple. At this time, the magnetic body 20 is exposed at the opening of the mounting groove, avoiding obstruction and ensuring the magnetic installation effect on the lamp panel 30.

[0074] Understandably, the shape and size of the mounting groove are matched one by one with the shape and size of the magnetic accumulator 20. In this way, the magnetic accumulator 20 can be stably installed in the groove by means of the side wall of the mounting groove pressing against the outer wall of the magnetic accumulator 20.

[0075] Furthermore, the display cabinet 100 also includes an elastic retaining ring, which is installed around the periphery of the magnetic body 20. The magnetic body 20 and the elastic retaining ring are engaged in the mounting groove. The outer wall of the elastic retaining ring elastically abuts against the side wall of the mounting groove. The elastic retaining ring is provided with at least one lifting part. The mounting base 10 is also provided with a notch that communicates with the mounting groove. The lifting part passes through the notch and extends to the outside of the mounting base 10.

[0076] Considering the close size of the magnetic chuck 20 to the mounting groove, it is difficult for the magnetic chuck 20 to be inserted horizontally into the groove during actual installation; instead, it tends to be tilted. In this case, the clamping force of the groove sidewall makes it difficult to adjust the installation posture of the magnetic chuck 20 within the groove. To address this, an elastic retaining ring is fitted around the outer periphery of the magnetic chuck 20, and a lifting part connected to the elastic retaining ring extends from a notch. When the magnetic chuck 20 is installed at an angle in the mounting groove, pulling the lifting part can loosen the magnetic chuck 20 from the groove, facilitating a secondary adjustment of the installation posture and ensuring the magnetic chuck 20 is fully inserted into the mounting groove. Furthermore, the elastic retaining ring elastically clamps the magnetic chuck 20 to the sidewall of the mounting groove, resulting in higher installation stability and reliability, and avoiding direct hard contact between the magnetic chuck 20 and the groove sidewall, which would cause friction and wear.

[0077] In addition to the above, this application also proposes a display device comprising a plurality of display cabinets 100 as described in any of the above embodiments, wherein the plurality of display cabinets 100 are spliced ​​and assembled. Thus, by assembling different numbers of display cabinets 100 according to actual usage needs, different display areas can be obtained, improving the flexibility of use.

[0078] For example, multiple display cabinets 100 are arranged in an array structure, which is regular and helps to achieve better display effects.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display cabinet, characterized in that, include: Mounting base; A magnetic attractor is mounted on the mounting base. The magnetic attractor has a first direction and includes at least two magnetic layers stacked along the first direction. Each magnetic layer has a first magnetic pole portion and a second magnetic pole portion. The first magnetic pole portion and the second magnetic pole portion in each magnetic layer have opposite magnetic properties, and in any two adjacent magnetic layers, the first magnetic pole portion and the second magnetic pole portion are aligned along the first direction. as well as A light panel is disposed on the mounting base and magnetically connected to the magnetic body.

2. The display cabinet according to claim 1, characterized in that, Each of the magnetic layers has at least two first magnetic pole portions and at least two second magnetic pole portions, with the first magnetic pole portions and the second magnetic pole portions arranged alternately along the circumferential direction of the magnetic layer.

3. The display cabinet according to claim 2, characterized in that, The magnetic layer is arranged in a circular structure. The magnetic layer includes two first magnetic pole portions and two second magnetic pole portions. The first magnetic pole portions and the second magnetic pole portions are arranged alternately along the circumference of the magnetic layer, and the fan-shaped area of ​​the first magnetic pole portions is equal to the size of the fan-shaped area of ​​the second magnetic pole portions.

4. The display cabinet according to claim 2, characterized in that, The magnetic layer is arranged in a square structure, and the magnetic layer includes two first magnetic pole portions and two second magnetic pole portions. The first magnetic pole portions and the second magnetic pole portions are arranged alternately along the circumferential direction of the magnetic layer. Wherein, when both the first magnetic pole portions and both the second magnetic pole portions are arranged in a diagonal structure, the square area of ​​the first magnetic pole portions is equal in size to the square area of ​​the second magnetic pole portions; or, when both the first magnetic pole portions and both the second magnetic pole portions are arranged in a side-to-side structure, the triangular area of ​​the first magnetic pole portions is equal in size to the triangular area of ​​the second magnetic pole portions.

5. The display cabinet according to claim 1, characterized in that, The magnetic attractor includes a metal substrate, on which a first magnetized region and a second magnetized region are provided. The first magnetized region forms the first magnetic pole portion, and the second magnetized region forms the second magnetic pole portion.

6. The display cabinet according to claim 1, characterized in that, The mounting base is provided with a mounting part, which is positioned facing the lamp panel, and the magnetic attractor is disposed on the mounting part.

7. The display cabinet according to claim 6, characterized in that, The mounting part includes a mounting groove, and the magnetic body is engaged in the mounting groove.

8. The display cabinet according to claim 7, characterized in that, The display cabinet also includes an elastic retaining ring, which is installed around the periphery of the magnetic body. The magnetic body and the elastic retaining ring are engaged in the mounting groove. The outer wall of the elastic retaining ring elastically abuts against the side wall of the mounting groove. The elastic retaining ring is provided with at least one lifting part. The mounting base is also provided with a notch, which communicates with the mounting groove. The lifting part passes through the notch and extends to the outside of the mounting base.

9. The display cabinet according to claim 6, characterized in that, The display cabinet also includes a housing, on which a support column protrudes from the inner sidewall facing the lamp panel. One of the support column and the mounting base has a plug-in protrusion, and the other of the support column and the mounting base has a plug-in hole. The plug-in protrusion is inserted into the plug-in hole.

10. The display cabinet according to claim 9, characterized in that, The inner wall of the shell is also provided with reinforcing ribs, which are connected to the support column.

11. A display device, characterized in that, It includes multiple display cabinets as described in any one of claims 1 to 10, and the multiple display cabinets are spliced ​​and assembled.

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