Light plate mounting structure and display device

Abstract

The application relates to a lamp plate mounting structure and a display device, which comprise a back plate, a magnetic attraction assembly and a lamp plate. The back plate has a loading surface. The magnetic attraction assembly comprises a mounting seat and a magnetic attraction piece. The mounting seat is arranged on the loading surface. The magnetic attraction piece is arranged on at least one of the mounting seat and the lamp plate. A magnetic attraction matching piece is arranged on at least one of the other of the mounting seat and the lamp plate. The magnetic attraction matching piece is magnetically connected with the magnetic attraction piece, so that the lamp plate is mounted on the back plate through the magnetic attraction assembly, and the mounting seat supports and positions the lamp plate. The magnetic attraction assembly is integrated on the back plate, the magnetic attraction assembly plays the role of a switching structure, the lamp plate can be normally assembled with the back plate through the magnetic attraction assembly, and the problem that the back plate is a plane structure and cannot be machined into a mounting and positioning structure, thereby failing to be applicable to the mounting of the lamp plate, is solved.

Description

Technical Field

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

[0002] Currently, most LED all-in-one machines on the market adopt a combination arrangement scheme of die-cast boxes, that is, the lamp board and die-cast box are installed to form a display module, and then multiple display modules are assembled by arraying the die-cast boxes.

[0003] To accommodate the installation needs of the light panel, the die-cast box can be designed and manufactured with an installation positioning structure, and then assembled with the light panel through the installation positioning structure. However, for LED all-in-one machines with a higher degree of integration and a simpler appearance, the sheet metal back plate is a flat structure and cannot be manufactured with an installation positioning structure, so it cannot be used for installation with the light panel. Utility Model Content

[0004] Therefore, it is necessary to provide a lamp panel mounting structure and display device to address the problem that the planar structure of traditional back panels cannot be used for lamp panel mounting.

[0005] A first aspect of this application provides a lamp panel mounting structure, comprising:

[0006] Backplate, the backplate having a loading surface;

[0007] A magnetic suction assembly, comprising a mounting base and a magnetic element, wherein the mounting base is disposed on the loading surface; and

[0008] The lamp panel has a magnetic suction component on at least one of the lamp panel and the mounting base, and a magnetic attraction component on at least the other of the lamp panel and the mounting base. The magnetic attraction component is magnetically connected to the magnetic suction component so that the lamp panel is mounted on the back plate by the magnetic attraction assembly, and the mounting base supports and positions the lamp panel.

[0009] This lamp panel mounting structure is applied in display devices, specifically in scenarios involving the assembly of lamp panels and back panels. Specifically, by fixing the mounting base to the loading surface of the back panel, and then providing a magnetic suction component on at least one of the lamp panel and the mounting base, and a magnetic mating component on at least the other, the lamp panel can be magnetically connected to the magnetic suction component, thus mounting it onto the back panel. At this point, the mounting base contacts the lamp panel, providing support and positioning. In other words, this solution integrates a magnetic suction component onto the back panel, which acts as a transition structure, allowing the lamp panel to be properly fitted and assembled with the back panel. This effectively solves the problem that back panels, being planar structures, cannot be machined to create mounting and positioning structures, making them unsuitable for mounting lamp panels.

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

[0011] In one embodiment, the mounting base is provided with a mounting groove, the magnetic member is installed in the mounting groove, and the surface of the magnetic member away from the bottom wall of the mounting groove does not exceed the end face of the mounting base away from the loading surface;

[0012] The end face of the mounting base away from the loading surface is used to abut and position itself against the surface of the lamp panel.

[0013] In one embodiment, the bottom wall of the mounting groove has an annular protrusion extending towards the groove opening, and the annular protrusion surrounds and forms a receiving cavity, in which the magnetic element is embedded.

[0014] In one embodiment, the magnetic suction assembly further includes a threaded component. The magnetic suction component has a first through hole, the mounting base has a second through hole aligned with the first through hole, and the back plate has a threaded hole aligned with the second through hole. The threaded component passes through the first through hole and the second through hole in sequence and is screwed into the threaded hole.

[0015] In one embodiment, at least two of the annular protrusion, the magnetic attractor, and the threaded component are provided, and they are assembled one-to-one to form a magnetic attractor unit.

[0016] When there are two magnetic attraction units, the two magnetic attraction units are arranged in a straight line.

[0017] When there are four magnetic attraction units, the four magnetic attraction units are arranged in a rectangular structure.

[0018] In one embodiment, the bottom wall of the mounting groove also has a first rib protruding towards the groove opening, and two adjacent annular protrusions are connected by the first rib.

[0019] In one embodiment, the bottom wall of the mounting groove also has a second rib protruding towards the groove opening, and the annular protrusion is connected to the side wall of the mounting groove through the second rib.

[0020] In one embodiment, the lamp plate is further provided with a calibration component, the calibration component having a calibration surface on the side facing away from the lamp plate, the calibration surface abutting against the end face of the mounting base away from the loading surface.

[0021] In one embodiment, the magnetic attractor and the magnetic mating member are in a clearance fit.

[0022] In one embodiment, the mounting base is an injection molded part, and the mounting base is integrally formed on the loading surface of the back plate using an injection molding process.

[0023] In one embodiment, the lamp plate is further provided with a positioning post, and a positioning hole is recessed on the loading surface, the positioning post being inserted into the positioning hole.

[0024] A second aspect of this application also provides a display device comprising the lamp panel mounting structure as described in any of the above embodiments. Attached Figure Description

[0025] 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.

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the structure of a display device according to one embodiment.

[0028] Figure 2 for Figure 1 A partial diagram of the exploded structure.

[0029] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0030] Figure 4 for Figure 2 A schematic diagram of the structure from the rear view perspective.

[0031] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0032] Figure 6 This is a partial exploded structural diagram of another embodiment of the display device.

[0033] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C.

[0034] Figure 8 This is a schematic diagram of a magnetic absorbing assembly with one magnetic absorbing unit.

[0035] Figure 9This is a schematic diagram of a magnetic absorbing assembly with two magnetic absorbing units.

[0036] Figure 10 This is a schematic diagram of a magnetic absorbing assembly with four magnetic units.

[0037] Figure 11 This is a top view of the display device.

[0038] Figure 12 for Figure 11 A schematic diagram of the cross-sectional structure at point DD.

[0039] Figure 13 for Figure 12 A magnified schematic diagram of the structure at point E in the middle.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100. Display device; 10. Back plate; 11. Loading surface; 12. Threaded hole; 13. Positioning hole; 20. Magnetic assembly; 21. Mounting base; 211. Mounting groove; 212. End face; 213. Annular protrusion; 213a. Receiving cavity; 214. Second through hole; 215. First rib; 216. Second rib; 22. Magnetic component; 221. First through hole; 23. Threaded component; 30. Lamp board; 31. Magnetic mating component; 32. Calibration component; 33. Positioning post; 40. Magnetic unit. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] Currently, most LED all-in-one machines on the market adopt a combination arrangement scheme of die-cast boxes. That is, the lamp board 30 is installed in correspondence with the die-cast box to form a display module, and then multiple display modules are assembled by assembling the die-cast boxes in an array. Die-cast boxes usually refer to metal box structures formed by pressure casting process, usually made of aluminum or aluminum alloy. Molten metal is injected into a mold under high pressure and cooled to form the shape. In order to adapt to the installation requirements of the lamp board 30, thanks to the flexibility of the manufacturing process, the die-cast box can be designed and processed with installation positioning structures, such as positioning columns, through reasonable mold structure design, and assembled with the lamp board 30 through the installation positioning structure.

[0049] However, for LED all-in-one machines with a higher degree of integration and a simpler appearance, the sheet metal back panel is used. On the one hand, the main raw material of the sheet metal back panel is thin metal sheet, which is usually less than 6mm thick. During processing, it is formed into the required shape of metal components through cold working processes such as cutting, punching, bending, and riveting. Its significant feature is that the thickness of the same part remains consistent. Therefore, to ensure structural strength, and due to limitations in manufacturing processes and dimensional characteristics, sheet metal backplates are typically limited to planar structures, making it impossible to fabricate mounting and positioning structures such as positioning posts. Consequently, they are unsuitable for installation with lamp panels. On the other hand, in related technologies, especially COB lamp panels, they are more often adapted for assembly with die-casting boxes. First, circular tin-plated iron sheets are welded onto the COB lamp panel, serving as components for magnetic attachment to the die-casting box. Second, the COB lamp panel has copper sheets around its perimeter, with the surface of the copper sheets machined by CNC to achieve high flatness. Since the COB lamp surface uses an adhesive application process, the thickness tolerance of the adhesive surface is relatively large. To ensure that the thickness of the COB lamp panel is consistent with that of adjacent COB lamp panels after mounting, avoiding discontinuity issues, this copper sheet position is used as the high contact surface, ensuring consistent thickness from the copper sheet to the lamp surface and meeting the extremely high flatness requirements of the COB lamp panel. Finally, to accommodate the positioning posts of the die-casting box, the COB lamp panel has depth-fixed holes. The positioning posts and depth-fixed holes are fitted together to ensure accurate positioning of a single lamp panel.

[0050] It is evident that when assembling with die-cast boxes, traditional long column-type magnetic mounting parts cannot be designed and manufactured for LED light boards, especially COB light boards. At the same time, mounting and positioning structures such as positioning posts cannot be manufactured on the sheet metal back plate, which restricts the normal assembly of LED light boards, especially COB light boards, with sheet metal back plates.

[0051] To address the problems of the existing technology, this application first integrates a mounting base 21 for the magnetic suction assembly 20 onto the back plate 10, and then installs a magnetic suction component 22 and a magnetic mating component 31 onto the mounting base 21 and the lamp panel 30 respectively. The lamp panel 30 is then assembled onto the back plate 10 by magnetic attraction between the magnetic suction component 22 and the magnetic mating component 31. Furthermore, after the lamp panel 30 and the back plate 10 are installed magnetically, the mounting base 21 contacts the surface of the lamp panel 30, providing support and positioning for the lamp panel 30, ensuring the accuracy of the lamp panel 30's installation position, and thus ensuring high flatness after assembling multiple lamp panels 30. This effectively solves the problem that the back plate 10 is a planar structure and cannot be machined with positioning posts or other installation and positioning structures, making it unsuitable for installation with the lamp panel 30.

[0052] In addition, the magnetic attachment 22 or magnetic mating attachment 31 is integrated and installed on the mounting base 21, making the structural arrangement of the components on the back plate 10 more compact and the degree of integration higher, thus reducing the difficulty of the structural layout of the back plate 10.

[0053] See Figure 1 The display device 100 described in one embodiment of this application can be any one of the following, such as an LED all-in-one machine or a conference screen, depending on actual needs. For example, in this application, the display device 100 is an LED all-in-one machine.

[0054] For example, the display device 100 includes a device body and a lamp panel mounting structure, the lamp panel mounting structure being integrated and mounted on the device body. It is understood that the device body includes, but is not limited to, a back panel, an intelligent interaction module, a controller, etc.

[0055] Please continue reading. Figures 1 to 5 In one embodiment, the lamp panel mounting structure includes a back plate 10, a magnetic absorbing assembly 20, and a lamp panel 30. The back plate 10 serves to mount and fix the magnetic absorbing assembly 20 and the lamp panel 30.

[0056] In this application, the back plate 10 has a loading surface 11. Specifically, the loading surface 11 is a planar or near-planar structure (e.g., when the loading surface 11 has holes), and is the side of the back plate 10 facing away from the back plate. In practical applications, the back plate can be a sheet metal back plate.

[0057] The magnetic assembly 20 includes a mounting base 21 and a magnetic member 22. The mounting base 21 is disposed on the loading surface 11. The magnetic member 22 is disposed on at least one of the lamp panel 30 and the mounting base 21, and a magnetic mating member 31 is disposed on at least the other of the lamp panel 30 and the mounting base 21. The magnetic mating member 31 and the magnetic member 22 are magnetically connected so that the lamp panel 30 is mounted on the back plate 10 through the magnetic assembly 20, and the mounting base 21 supports and positions the lamp panel 30.

[0058] It should be noted that the specific implementation scheme adopted in this application is that the magnetic component 22 is installed on the mounting base 21 and the magnetic fitting component 31 is installed on the lamp panel 30.

[0059] Of course, in other alternative embodiments, the magnetic mate 31 can be installed on the mounting base 21, and then the magnetic mate 22 can be installed on the lamp panel 30; alternatively, the mounting base 21 can be equipped with both the magnetic mate 22 and the magnetic mate 31, and the lamp panel 30 can be equipped with both the magnetic mate 22 and the magnetic mate 31. The key is to ensure that the magnetic mate 22 and / or the magnetic mate 31 on the mounting base 21 are magnetically connected to the corresponding magnetic mate 31 and / or the magnetic mate 22 on the lamp panel 30.

[0060] In one embodiment, the mounting base 21 is an injection-molded part, integrally molded onto the loading surface 11 of the back plate 10 using an injection molding process. Compared to traditional threaded connections, snap-fit ​​connections, and other installation methods, the injection-molded mounting base 21 has a simpler manufacturing process, higher bonding strength between the mounting base 21 and the back plate 10, and better connection reliability. Furthermore, compared to materials such as metal, the injection-molded mounting base 21 is lighter and less expensive, which is more conducive to the lightweight design of the display device 100 and reduces the overall cost.

[0061] The lamp panel mounting structure of this solution is applied in the display device 100, involving the assembly of the lamp panel 30 and the back panel 10. Specifically, by fixing the mounting base 21 of the magnetic component 20 to the loading surface 11 of the back panel 10, and installing the magnetic component 22 into the mounting base 21, and simultaneously installing the magnetic mating component 31 on the lamp panel 30, the lamp panel 30 can be magnetically connected to the magnetic component 22 through the magnetic mating component 31, thereby enabling the lamp panel 30 to be installed on the back panel 10. At this time, the mounting base 21 contacts the lamp panel 30 to support and position the lamp panel 30. In other words, this solution integrates the magnetic component 20 on the back panel 10, with the magnetic component 20 acting as a transition structure, allowing the lamp panel 30 to be normally adapted and assembled with the back panel 10 through the magnetic component 20. This effectively solves the problem that the back panel 10 is a planar structure and cannot be machined to form an installation and positioning structure, making it unsuitable for installation with the lamp panel 30.

[0062] Please continue reading. Figure 7 ,as well as Figures 11 to 13 Based on the above embodiments, in one embodiment, the mounting base 21 is provided with a mounting groove 211, the magnetic suction member 22 is installed in the mounting groove 211, and the surface of the magnetic suction member 22 away from the bottom wall of the mounting groove 211 does not exceed the end face 212 of the mounting base 21 away from the loading surface 11.

[0063] The end face 212 of the mounting base 21 away from the loading surface 11 is used to abut and position itself against the surface of the lamp panel 30.

[0064] A mounting groove 211 is machined into the mounting base 21, and the magnetic component 22 is installed into the mounting groove 211 to better accommodate the magnetic component 22. After installation, it is necessary to ensure that the surface of the magnetic component 22 away from the bottom wall of the mounting groove 211 does not exceed the end face 212 of the mounting base 21 away from the loading surface 11. That is, the magnetic component 22 is completely inside the mounting groove 211. This can avoid interference caused by the end face 212 of the mounting base 21 away from the loading surface 11 abutting against the surface of the lamp panel 30, so as to achieve the support and positioning of the lamp panel 30 by the mounting base 21.

[0065] For example, in this application, the mounting base 21 is rectangular, and correspondingly, the mounting groove 211 is also a rectangular groove. The magnetic attractor 22 is a circular magnet. After the magnetic attractor 22 is installed in the rectangular groove, the periphery of the magnetic attractor 22 can abut against the four side walls of the rectangular groove to further improve the stability of the magnetic attractor 22 installed in the mounting base 21.

[0066] Optionally, the magnetic attraction component 31 in this application may be, but is not limited to, a tin-plated iron sheet.

[0067] Please continue reading. Figure 7 Furthermore, based on the above embodiment, the bottom wall of the mounting groove 211 is provided with an annular protrusion 213 protruding towards the groove opening. The annular protrusion 213 surrounds and forms a receiving cavity 213a, in which the magnetic suction member 22 is embedded. Embedding the magnetic suction member 22 in the receiving cavity 213a allows the annular protrusion 213 to lock and position the magnetic suction member 22 along the entire circumference, thereby improving the stability of the magnetic suction member 22 installation.

[0068] Optionally, the height of the annular protrusion 213 can be less than, equal to, or greater than the thickness of the magnetic member 22, and can be flexibly selected according to actual needs. Preferably, in this application, the height of the annular protrusion 213 is less than the thickness of the magnetic member 22, so that after the magnetic member 22 is embedded in the receiving cavity 213a, a portion of it can be exposed outside the annular protrusion 213, thereby facilitating the disassembly of the magnetic member 22.

[0069] Please continue reading. Figure 6 , Figure 7 ,as well as Figures 11 to 13Furthermore, based on any of the above embodiments, the magnetic suction assembly 20 also includes a threaded component 23. The magnetic suction member 22 has a first through hole 221, the mounting base 21 has a second through hole 214 aligned with the first through hole 221, and the back plate 10 has a threaded hole 12 aligned with the second through hole 214. The threaded component 23 passes through the first through hole 221 and the second through hole 214 in sequence and is screwed into the threaded hole 12. In this way, the magnetic suction member 22 and the mounting base 21 can be locked and fixed together on the back plate 10 by the threaded component 23, thereby improving the connection stability between the mounting base 21 and the back plate 10 and between the magnetic suction member 22 and the mounting base 21. This prevents the mounting base 21 from becoming loose and falling off the back plate 10 due to insufficient adhesion caused by high temperature, aging, etc., and also prevents the mounting base 21 from deforming and becoming loose and falling off the magnetic suction member 22 due to insufficient connection force.

[0070] Please continue reading. Figure 1 It should be noted that, in order to obtain a larger display area to meet the needs of more different display scenarios, and considering that the size of a single lamp panel 30 should not be too large to facilitate transportation and installation, the display device 100 of this application may include multiple lamp panels 30, and the multiple lamp panels 30 are spliced ​​in an array to form a display screen. For example, each lamp panel 30 is rectangular, and the display screen after array splicing is also a rectangular structure.

[0071] To improve the reliability of mounting each lamp panel 30 on the back plate 10, each lamp panel 30 can be assembled to the back plate 10 by more than one magnetic attachment assembly 20. For example, the perimeter of each lamp panel 30 is fixed to the back plate 10 by a plurality of magnetic attachment assemblies 20 arranged in a ring.

[0072] Please continue reading. Figure 2 , Figure 3 and Figure 8 When only one magnetic element 22 is provided in the mounting base 21, the magnetic assembly 20 is generally arranged on the side of the back plate 10 to magnetically fix the lamp plate 30 arranged on the four edges of the back plate 10.

[0073] Furthermore, in one embodiment, at least two annular protrusions 213, magnetic attractors 22, and threaded components 23 are provided, and they are assembled one-to-one to form a magnetic attractor unit 40.

[0074] Please continue reading. Figure 2 , Figure 3 and Figure 9 When there are two magnetic units 40, the two magnetic units 40 are arranged in a straight line. The magnetic assembly 20, which includes two magnetic units 40, can be applied at the splicing corner of two adjacent light panels 30. At this time, the two magnetic units 40 are magnetically connected to the corresponding light panel 30 of the two adjacent light panels 30 respectively.

[0075] Please continue reading. Figure 2 , Figure 3 and Figure 10 When there are four magnetic units 40, the four magnetic units 40 are arranged in a rectangular structure. The magnetic assembly 20, which includes four magnetic units 40, can be applied at the splicing corner of four adjacent light panels 30. At this time, the four magnetic units 40 are magnetically connected to one of the corresponding light panels 30 in each of the four adjacent light panels 30.

[0076] That is, depending on the different installation positions of the different lamp panels 30 on the back plate 10, and in order to achieve multi-point magnetic fixation of the lamp panels 30 in the circumferential direction, the magnetic assembly 20 can be flexibly designed to include different structural forms such as one magnetic unit 40, two magnetic units 40, and four magnetic units 40, which can meet the installation requirements of the lamp panels 30, while avoiding insufficient or redundant functions of the magnetic assembly 20.

[0077] Please continue reading. Figure 7 Furthermore, in another embodiment, the bottom wall of the mounting groove 211 extends outward toward the groove opening to form a first rib 215, and two adjacent annular protrusions 213 are connected by the first rib 215. The first rib 215 connects two adjacent annular protrusions 213 into a single structure, and also provides lateral support and reinforcement for the annular protrusions 213, thereby improving the overall structural strength of the mounting base 21.

[0078] Please continue reading. Figure 7 Furthermore, in another embodiment, a second rib 216 protrudes from the bottom wall of the mounting groove 211 toward the groove opening, and the annular protrusion 213 is connected to the side wall of the mounting groove 211 via the second rib 216. The second rib 216 connects the annular protrusion 213 and the side wall of the groove into a single structure, and provides lateral support and reinforcement for both the annular protrusion 213 and the side wall of the groove, thereby improving the overall structural strength of the mounting base 21.

[0079] Optionally, the first rib 215 and the second rib 216 can be any shape, such as a straight bar or an S-shape. The first rib 215 and the second rib 216 can be integrally molded during the injection molding of the mounting base 21, without the need for additional installation work.

[0080] In this application, the lamp board 30 specifically adopts a COB (Chip On Board) lamp board 30. The COB lamp board 30 is a highly integrated LED packaging technology that directly mounts multiple LED chips onto a metal substrate to form a polycrystalline array. Electrical interconnection is achieved through high-density wiring, and a phosphor-containing silicone layer is applied to form a uniform light-emitting surface. Through direct chip attach technology and eutectic bonding process, the luminous efficacy distribution uniformity can reach over 90%. Furthermore, the COB lamp board 30 can also be used directly as a lighting module, simplifying the production process and reducing maintenance costs. These advantages make the COB lamp board 30 widely used in high-configuration lighting and display products such as displays, especially suitable for scenarios requiring high brightness, high color rendering, and long lifespan.

[0081] Please continue reading. Figure 4 , Figure 5 ,as well as Figures 11 to 13 However, the COB lamp panel 30 uses an adhesive-laying process for its lamp surface, which results in a large tolerance for the thickness of the adhesive layer. This can easily lead to gaps in the COB lamp panel 30 during splicing, affecting the display effect of the screen. To address this, in one embodiment of this application, a calibration element 32 is also provided on the lamp panel 30. The calibration element 32 has a calibration surface on its side facing away from the lamp panel 30, and the calibration surface abuts against the end face 212 of the mounting base 21 away from the loading surface 11.

[0082] The calibration surface can be a flat surface machined by CNC equipment, and the machining tolerance can be controlled within + / -0.025. Based on this, the calibration surface is used to abut against the end face 212 of the mounting base 21 that is away from the loading surface 11, which can ensure that the thickness of the calibration part 32 to the lamp surface is consistent and meet the high mounting flatness requirements of the COB lamp board 30.

[0083] Optionally, the calibration piece 32 may be made of copper sheet, which is fixed to the lamp plate 30 by at least one of the following methods: bonding, welding, etc.

[0084] It should be noted that, while the magnetic suction component 22 and the magnetic coupling component 31 are magnetically installed, the calibration component 32 simultaneously abuts against the end face 212 of the mounting base 21 away from the loading surface 11, so that the magnetic suction component 22 and the magnetic coupling component 31 are in a clearance fit. That is, direct contact between the magnetic suction component 22 and the magnetic coupling component 31 is avoided. The purpose of this design is to avoid the problem of inconsistent height caused by the processing dimension error and installation dimension error of the magnetic suction component 22 and / or the magnetic coupling component 31 when the lamp board 30 is magnetically installed, which would cause the magnetic suction component 22 and the magnetic coupling component 31 to come into contact and cause installation errors in the lamp board 30.

[0085] Please continue reading. Figures 2 to 5In addition, in order to make the assembly of the lamp panel 30 and the back plate 10 more stable, in an optional embodiment, the lamp panel 30 is also provided with a positioning post 33, and a positioning hole 13 is recessed on the loading surface 11, and the positioning post 33 is inserted into the positioning hole 13.

[0086] 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.

[0087] 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 lamp panel mounting structure, characterized in that, include: Backplate, the backplate having a loading surface; A magnetic suction assembly, comprising a mounting base and a magnetic suction element, wherein the mounting base is disposed on the loading surface; as well as The lamp panel has a magnetic suction component on at least one of the lamp panel and the mounting base, and a magnetic attraction component on at least the other of the lamp panel and the mounting base. The magnetic attraction component is magnetically connected to the magnetic suction component so that the lamp panel is mounted on the back plate by the magnetic attraction assembly, and the mounting base supports and positions the lamp panel.

2. The lamp panel mounting structure according to claim 1, characterized in that, The mounting base is provided with a mounting groove, the magnetic suction element is installed in the mounting groove, and the surface of the magnetic suction element away from the bottom wall of the mounting groove does not exceed the end face of the mounting base away from the loading surface; The end face of the mounting base away from the loading surface is used to abut and position itself against the surface of the lamp panel.

3. The lamp panel mounting structure according to claim 2, characterized in that, The bottom wall of the mounting groove has an annular protrusion extending towards the groove opening, and the annular protrusion surrounds and forms a receiving cavity, in which the magnetic suction element is embedded.

4. The lamp panel mounting structure according to claim 3, characterized in that, The magnetic attraction assembly further includes a threaded component. The magnetic attraction component has a first through hole, the mounting base has a second through hole aligned with the first through hole, and the back plate has a threaded hole aligned with the second through hole. The threaded component passes through the first through hole and the second through hole in sequence and is screwed into the threaded hole.

5. The lamp panel mounting structure according to claim 4, characterized in that, The annular protrusion, the magnetic suction component, and the threaded component are each provided in at least two forms, and are assembled one-to-one to form a magnetic suction unit; When there are two magnetic attraction units, the two magnetic attraction units are arranged in a straight line. When there are four magnetic attraction units, the four magnetic attraction units are arranged in a rectangular structure.

6. The lamp panel mounting structure according to claim 5, characterized in that, The bottom wall of the mounting groove also has a first rib protruding towards the groove opening, and two adjacent annular protrusions are connected by the first rib.

7. The lamp panel mounting structure according to claim 6, characterized in that, The bottom wall of the mounting groove also has a second rib protruding towards the groove opening, and the annular protrusion is connected to the side wall of the mounting groove through the second rib.

8. The lamp panel mounting structure according to claim 2, characterized in that, The lamp plate is also provided with a calibration component, and the calibration component has a calibration surface on the side facing away from the lamp plate. The calibration surface abuts against the end face of the mounting base away from the loading surface.

9. The lamp panel mounting structure according to claim 2 or 8, characterized in that, The magnetic suction component and the magnetic suction mating component are fitted with a clearance.

10. The lamp panel mounting structure according to claim 1, characterized in that, The mounting base is an injection molded part, and the mounting base is integrally molded onto the loading surface of the back plate using an injection molding process.

11. The lamp panel mounting structure according to claim 1, characterized in that, The lamp plate is also provided with a positioning post, and a positioning hole is recessed on the loading surface, and the positioning post is inserted into the positioning hole.

12. A display device, characterized in that, Includes the lamp panel mounting structure as described in any one of claims 1 to 11.

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