LED display screen box using magnetic steel frame

Abstract

This invention provides an LED display cabinet using a magnetic steel frame, comprising a rear cabinet, a magnetic steel frame, a power module, a circuit board, and an LED panel. The rear cabinet consists of a base plate and cabinet edges. An injection-molded magnetic steel frame is mounted on the base plate, with several magnets distributed on the frame. The power module is mounted on the base plate. The circuit board is mounted on the magnetic steel frame or the base plate. The LED panel is attached to the magnetic steel frame via distributed iron plates, completely covering the circuit board, power module, and rear cabinet. This invention replaces die-cast aluminum cabinets, eliminating the need for individually machining magnet mounting bases, thus achieving the goals of easily manufacturing larger cabinets, reducing costs, shortening production time, and increasing productivity.

Description

Technical Field

[0001] This utility model relates to the field of LED display equipment technology, and in particular to the structure and manufacture of an LED display cabinet using a magnetic steel frame. Background Technology

[0002] LED display cabinets aim to improve splicing effects, save materials, and reduce labor and machine processing time while meeting strength requirements, thereby reducing costs. This necessitates continuous improvement in the structural design of LED displays and the development of technologies and processes that have not yet been widely applied to them.

[0003] Regarding the widely used die-cast aluminum cabinets in the industry, a typical example is the "Novel Die-cast Aluminum Cabinet for Small-Pitch Integrated LED Display Screen" disclosed in Chinese patent document CN 218998468 U. This cabinet contains "several molded mounting seats," with "magnetic plates (magnets) fixed to the front ends of the mounting seats" to tightly adhere the LED panels to the cabinet. This necessitates machining the die-cast aluminum cabinet on a machining center, where, in addition to cutting the shape, each mounting seat must be individually machined (e.g., drilling, tapping) to secure the magnetic plates (magnets). The number of these mounting seats is considerable; for example, the patent embodiment shows 52, requiring significant manual and machine processing time. Furthermore, due to limitations in die-casting processes and equipment (e.g., machining centers), manufacturing larger die-cast aluminum cabinets (e.g., 1200*675 or 640*480 mm) is difficult. Moreover, the die-casting process and machining itself are time-consuming and costly, making it difficult to reduce costs, increase efficiency, and improve production capacity.

[0004] Therefore, the design and manufacturing technology and processes of LED display cabinets need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to improve the design of the LED display cabinet structure to address the shortcomings of the existing technology, abandon the die-casting aluminum process, and eliminate the need to process magnet mounting bases on the cabinet one by one, so as to simplify the manufacturing process, thereby achieving the goal of easily manufacturing larger cabinets, reducing costs, shortening working time, and increasing production capacity.

[0006] To solve the above-mentioned technical problems, the present invention provides an LED display cabinet using a magnetic steel frame, comprising a rear cabinet, a magnetic steel frame, a power module, a circuit board, and at least one LED panel. The rear cabinet is rectangular, consisting of a flat base plate and a side plate perpendicular to the base plate. The magnetic steel frame is tightly attached to the base plate, and several magnets (or iron sheets) are distributed and installed on the magnetic steel frame. The positions of the magnets are adapted to the iron sheets (or magnets) distributed on the LED panel, so that the LED panels are aligned with the same plane. The power module is installed on the base plate through the magnetic steel frame. The circuit board is installed on the magnetic steel frame or the base plate, and the LED panel is tightly attached to the magnetic steel frame, covering the circuit board and the power module without contact. The planar boundary formed by the LED panel is flush with the outer edge of the cabinet.

[0007] Preferably, in the LED display cabinet using the above-mentioned magnetic steel frame, the magnetic steel frame is composed of several identical magnetic steel frame units spliced ​​together, and the sides of the magnetic steel frame units are provided with several positioning posts and positioning holes to facilitate splicing; the magnetic steel frame or magnetic steel frame units are made of polymer material by injection molding; the magnetic steel support (or iron sheet) is pre-placed in the mold, and the injection molding integrates the magnetic steel support (or iron sheet) with the magnetic steel frame or magnetic steel frame unit; or, the magnet (or iron sheet) is installed on the magnetic steel frame or magnetic steel frame unit by self-tapping screws; the magnetic steel frame or magnetic steel frame unit and the bottom plate of the rear cabinet are respectively provided with several matching positioning posts and positioning holes.

[0008] Preferably, in the LED display cabinet using the magnetic steel frame described above, the rear cabinet is formed by folding the edges of a rectangular metal plate around its perimeter to form the cabinet edge; or, the rear cabinet is formed by an integral rectangular base plate and cabinet edge made of die-cast aluminum; or, the rear cabinet is formed by a rectangular metal plate, profiles, and corner brackets, with a frame made of profiles and corner brackets installed around the perimeter of the rectangular metal plate to form the cabinet edge, or the rectangular metal plate has narrower edges folded around its perimeter, with a frame made of profiles and corner brackets attached to the four sides to form the cabinet edge.

[0009] Preferably, in the LED display cabinet using the above-mentioned magnetic steel frame, the magnetic steel frame is tightly attached to the base plate by means of adhesive; or, the magnetic steel frame is tightly attached to the base plate by means of adhesive and screws.

[0010] Preferably, the dimensions (in millimeters) of any of the above-mentioned LED display cabinets using magnetic steel frames are 600*337.5, 1200*675, or 640*480.

[0011] Preferably, any of the above-mentioned LED display cabinets using magnetic steel frames has several screws or latches on the side of the cabinet to tightly splice with the side of adjacent cabinets.

[0012] The beneficial effects of this utility model are as follows: The rear box is made of simple sheet metal and profiles, and the magnetic steel frame is made by injection molding, which replaces the higher cost of die-cast aluminum box. It eliminates the need to process magnetic steel mounting seats on the box one by one, and the manufacturing process is simple. Thus, it achieves the purpose of easily manufacturing larger boxes, reducing costs, shortening working time, and increasing production capacity. Attached Figure Description

[0013] Figure 1 A schematic diagram of an LED display cabinet structure using a magnetic steel frame is provided for an embodiment of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the magnetic steel frame composed of magnetic steel frame units in an embodiment of this utility model;

[0015] Figure 3 A schematic diagram of a first type of larger-sized LED display cabinet using a magnetic steel frame, provided for an embodiment of this utility model;

[0016] Figure 4 This is a schematic diagram of the integrated rear housing of die-cast aluminum in an embodiment of this utility model;

[0017] Figure 5 This is a schematic diagram of a second, larger-sized LED display cabinet structure using a magnetic steel frame, provided as an embodiment of the present invention.

[0018] The above figures include the following reference numerals:

[0019] 1-Rear box; 2-Magnetic steel frame; 3-Power module; 4-Circuit board; 5-LED panel; 6-Bottom plate; 7-Box edge; 8-Magnet; 9-Iron sheet; 10-Magnetic steel frame unit; 15-Corner bracket; 16-Tongue edge; 17-Bottom edge. Detailed Implementation

[0020] To make this utility model more apparent and understandable, preferred embodiments are described below in conjunction with the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0021] In the description of this utility model, the orientation or positional relationship indicated by terms such as "center", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It does 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 utility model.

[0022] Figure 1 Please refer to the schematic diagram of an LED display cabinet structure using a magnetic steel frame provided for an embodiment of this utility model. Figure 1The enclosure mainly consists of a rear enclosure 1, a magnetic steel frame 2, two power modules 3, a circuit board 4 (known in the industry as a HUB board) and eight LED panels 5.

[0023] The rear housing 1 is rectangular, constructed from a rectangular metal plate, profiles, and corner brackets 15. The rectangular metal plate primarily serves as the base plate 6, with narrower (lower in height) bottom edges 17 on all four sides. The profiles and corner brackets 15 form a rectangular frame, with the tongues 16 (thinner edges) of the profiles and corner brackets 15 tightly fitted against these bottom edges 17 using glue and / or screws, thus forming the housing edges 7. The magnetic steel frame 2 is tightly glued to the base plate 6 and integrated with the housing edges 7 using glue and / or screws. Several magnets 8 are distributed and installed on the magnetic steel frame 2, their positions and numbers corresponding to the iron plates 9 distributed on the LED panels 5. The magnets 8 are installed at the same height so that the eight LED panels 5 fixed by adsorption are on the same plane. The magnetic steel frame 2 has large holes through which the power module 3 is directly installed onto the base plate 6. The circuit board 4 is mounted on the magnetic steel frame 2. The LED panels 5 are distributed with iron plates 9 corresponding to the magnets. Figure 1 Eight iron pieces 9 are shown as dashed circles on an LED panel 5, indicating that the iron pieces 9 are mounted on the downward-facing side of the LED panel 5; the corresponding eight magnets are also marked. The eight LED panels 5 are attached closely to the magnetic frame 2, completely covering the circuit board 4, power module 3, and rear housing 1, without contacting the circuit board 4 and power module 3. The boundary of the display plane formed by the eight LED panels 5 is flush with the outer edge of the housing edge 7.

[0024] Alternatively, several iron plates 9 are installed on the magnetic steel frame 2 to match the magnets 8 distributed on the LED panel 5.

[0025] Alternatively, the rear box 1 can also be constructed as follows: A rectangular metal plate serves as the base plate 6 (without folded edges). The magnetic steel frame 2 is tightly attached to the base plate 6 with adhesive. A frame consisting of profiles and corner brackets 15 is tightly attached to the magnetic steel frame 2 and connected to the magnetic steel frame 2 and the base plate 6 with adhesive and / or screws. This frame constitutes the box edge 7. The connection between the rear box 1 and the magnetic steel frame 2 is thus achieved.

[0026] Alternatively, a rectangular metal plate can serve as the base plate 6, with holes punched around its perimeter and folded edges forming the box edges 7. The magnetic steel frame 2 is then tightly glued to the base plate 6 and connected to the box edges 7 using glue and / or screws. This achieves the connection between the rear box 1 and the magnetic steel frame 2.

[0027] Or, Figure 4 For a structural schematic diagram of the integrated rear housing of die-cast aluminum in this embodiment of the present invention, please refer to [link / reference]. Figure 1 and Figure 4The rear housing 1 is constructed using a die-casting aluminum alloy process, forming an integrated rectangular base plate 6 and housing sides 7. The magnetic steel frame 2 is tightly attached to the base plate 6 and housing sides 7 with glue and / or screws. This achieves the connection between the rear housing 1 and the magnetic steel frame 2.

[0028] Figure 2 This is a schematic diagram of the structure of the magnetic steel frame composed of magnetic steel frame units in an embodiment of this utility model. Please refer to [link / reference]. Figure 1 and Figure 2 Alternatively, the magnetic frame 2 can also be constructed by splicing together several identical magnetic frame units 10 to save on mold costs. To increase the splicing strength, the magnetic frame units 10 can be reinforced with connectors and / or positioning pins and positioning holes. Both the magnetic frame 2 and the magnetic frame units 10 are made of plastic through injection molding to achieve simple manufacturing, short production time, and low cost. Several positioning pins are distributed on the surface of the magnetic frame 2 or magnetic frame units 10 that contacts the base plate 6, and corresponding positioning holes are provided on the base plate 6 at corresponding positions. Figure 1 (As shown in the diagram, there are 3 on the left and 3 on the right). When the former is attached to the base plate 6, the positioning post is inserted into the positioning hole, which improves manufacturing accuracy. Several magnets 8 are distributed and installed on the magnet frame unit 10. Figure 2 Some magnets have protruding markings. The installation and fixation of magnet 8 on magnet frame 2 or magnet frame unit 10 can be done in two ways. First, the magnet support is pre-placed in the mold; while magnet frame 2 or magnet frame unit 10 is being injection molded, the magnet support is integrated with it, and then magnet 8 can be easily installed on the magnet support. Second, magnet 8 with self-tapping screws is directly installed on the injection-molded magnet frame 2 or magnet frame unit 10. Figure 1 (A magnified view is shown on the right). These methods are easier and less time-consuming than machining the magnet "mounting seats" one by one on a die-cast aluminum housing using a machining center.

[0029] Figure 3 For a schematic diagram of the first larger-sized LED display cabinet structure using a magnetic steel frame provided by this utility model embodiment, please refer to... Figure 1 and Figure 3 .if Figure 1 The LED display cabinet in the middle is 600*337.5. If four such cabinets are combined into one cabinet, then its size is 1200*675. Figure 3 This illustrates the larger-sized box formed by this combination, and... Figure 1 In comparison, the only change to its components is combining four rear housings into one. To increase the strength of the connection, the magnetic steel frames can be reinforced with connectors and / or positioning pins and positioning holes.

[0030] Figure 5 For a schematic diagram of a second, larger-sized LED display cabinet using a magnetic steel frame provided in this embodiment of the invention, please refer to [link / reference]. Figure 5 and Figure 1 . Figure 5 In the middle, the size of LED panel 5 is 320*160, and the size of the box formed by 6 LED panels 5 is 640*480. Figure 5 A structural schematic diagram of this large-sized box is shown, and... Figure 1 In comparison, a single power supply 3 is mounted on the base plate 6, and the circuit board 4 is also mounted on the base plate 6.

[0031] The benefits of manufacturing larger cabinets include reducing cabinet costs and improving the splicing quality of the displays.

[0032] The side of the cabinet in this embodiment is provided with several screws or latches (not shown in the figure), which can be tightly spliced ​​with the side of the adjacent cabinet to form a larger LED display screen.

[0033] As can be seen from this embodiment, the present invention improves the design of the LED display cabinet structure, eliminating the need to individually process magnet mounting bases on the cabinet; the preferred solution abandons the die-casting aluminum process, adopting low-cost methods such as simple sheet metal, injection molding, bonding, and profiles. The preferred solution also facilitates the manufacture of larger-sized LED display cabinets, such as 1200*675 or 640*480. Therefore, the present invention has solved the technical problem to be addressed, achieving the goals of easily manufacturing larger cabinets, reducing costs, shortening working time, and increasing production capacity.

[0034] The technical features of this utility model not described herein can be implemented using existing technology, and will not be elaborated upon here. Furthermore, the above description is not intended to limit this utility model; any modifications made without departing from the spirit and scope of this utility model are still included within the patent protection scope of this utility model.

Claims

1. An LED display screen cabinet using a magnetic steel frame, characterized in that: Its components include a rear housing, a magnetic steel frame, a power module, a circuit board, and at least one LED panel. The rear housing is rectangular, consisting of a flat base plate and a side plate perpendicular to the base plate. The magnetic steel frame is tightly fitted to the base plate, and several magnets are distributed and installed on the frame. The positions of the magnets are adapted to the magnets distributed on the LED panel, so that the LED panel is in the same plane. The power module is installed on the base plate through the magnetic steel frame. The circuit board is installed on the magnetic steel frame or the base plate. The LED panel is tightly attached to the magnetic steel frame by its own distributed iron plates, covering the circuit board and the power module without contact. The planar boundary formed by the LED panel is flush with the outer edge of the housing.

2. The LED display cabinet using a magnetic steel frame as described in claim 1, characterized in that: The magnetic steel frame is composed of several magnetic steel frame units; the magnetic steel frame or magnetic steel frame units are made by injection molding.

3. The LED display screen cabinet using magnetic steel frame according to claim 1, wherein: The rear box is formed by folding the edges of a rectangular metal plate around its perimeter; or, the rear box is formed by an integral rectangular base plate and box edges made of die-cast aluminum; or, the rear box is formed by a rectangular metal plate, profiles and corner brackets, with a frame made of profiles and corner brackets installed around the perimeter of the rectangular metal plate to form the box edges, or the rectangular metal plate is folded with narrower edges around its perimeter, and a frame made of profiles and corner brackets is attached to the inside of the four sides to form the box edges.

4. The LED display screen cabinet using magnetic steel frame according to claim 1, wherein: The magnetic steel frame is tightly attached to the base plate using adhesive; or, the magnetic steel frame is tightly attached to the base plate using adhesive and screws.

5. The LED display screen cabinet using magnetic steel frame according to any one of claims 1 to 4, characterized in that: The dimensions of the enclosure are 600*337.5, 1200*675, or 640*480.

6. The LED display screen cabinet using magnetic steel frame according to any one of claims 1 to 4, characterized in that: The box body has several screws or buckles on its side to tightly connect with the side of the adjacent box body.

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