Magnetic interlocking positioning LED module and display screen

Abstract

This utility model provides a magnetically interlocking LED module and display screen, belonging to the field of display screens. It includes a rectangular frame, with a light panel detachably mounted on the front of the frame via fasteners. The sides of the rectangular frame are arranged clockwise as a first side, a second side, a third side, and a fourth side. The first and second sides each have at least one sliding hole, and a positioning ferromagnetic slide rod is slidably installed in each hole. The outer end of the positioning ferromagnetic slide rod extends out of the rectangular frame and is flush with the outer surface of the corresponding side of the rectangular frame. The third and fourth sides each have at least one slide rod insertion slot, and a magnet is fixedly installed in each slot, with the magnet and the positioning ferromagnetic slide rod positioned opposite each other. The advantages of this utility model are that it ensures the splicing effect of the LED module and facilitates the disassembly and reinstallation of the LED module by operators.

Description

Technical Field

[0001] This utility model belongs to the field of display screens, specifically relating to an LED module and display screen with magnetic interlocking positioning. Background Technology

[0002] In the current LED display field, LED modules serve as the basic unit for building various large display screens, and the quality of their assembly and positioning technology plays a crucial role in the overall performance of the display screen.

[0003] Currently, the traditional assembly process for LED modules typically involves the following steps: first, calculating the display size of the module to be installed and determining the main metal support frame; then, fixing the power module to the main metal support frame, and finally, securing each LED module to the main metal support frame in a specific order using screws; and finally, connecting the data cables and power lines sequentially from the back of the main metal support frame. However, due to the limited design precision of the main metal support frame, direct installation of LED modules can easily result in uneven splicing and excessively large seams. Therefore, during the installation process, installers often need to manually press the LED modules flat before installing them with screws. This process is complex, time-consuming, labor-intensive, and produces poor splicing results.

[0004] Furthermore, although some displays have begun to use magnetic attachment for LED module installation to simplify the entire installation process, the existing magnetic attachment method often places the magnetic structure between the back of the LED module and the front of the main metal support frame. Therefore, it cannot solve the problems of uneven splicing and excessively large seams. In addition, for a small number of displays that place the magnetic structure on the side of the LED module, although it can solve the above problems to some extent, the ferromagnetic or magnetic parts of the magnetic structure are fixed to the protrusions on the side of the LED module. Due to the tenon and mortise structure formed by the magnetic structure, operators often cannot disassemble a single LED module in the assembled display. Moreover, when installing a single LED module, it is easy to scratch the surrounding LED modules by the protrusions on the side of the LED module. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an LED module and display screen with magnetic interlocking positioning, which can not only avoid defects such as uneven splicing flatness and excessive splicing gaps after LED module splicing, but also facilitate operators to disassemble and reinstall a single LED module in the assembled display screen.

[0006] To address the aforementioned technical problems, this utility model provides a magnetically interlocking LED module, comprising a rectangular frame. A lamp panel is detachably mounted on the front of the rectangular frame via fasteners. The sides of the rectangular frame are arranged clockwise as a first side, a second side, a third side, and a fourth side. The first and second sides each have at least one sliding hole, and a positioning ferromagnetic slide rod is slidably installed in each sliding hole. The outer end of the positioning ferromagnetic slide rod extends out of the rectangular frame and is flush with the outer surface of the corresponding side of the rectangular frame. The third and fourth sides each have at least one slide rod insertion slot, and a magnet is fixedly installed in each slide rod insertion slot. The magnet on the third side is positioned opposite to the positioning ferromagnetic slide rod on the first side. The magnet on the fourth side is positioned opposite to the positioning ferromagnetic slide rod on the second side.

[0007] When two or more LED modules with magnetic interlocking positioning provided by this utility model are spliced ​​together, each positioning ferromagnetic slide rod can be manually pushed into its corresponding sliding hole first, and the outer end of the positioning ferromagnetic slide rod is made flush with the outer surface of the corresponding side of the rectangular frame, thereby hiding the positioning ferromagnetic slide rod within the rectangular frame, effectively preventing the light panels on adjacent LED modules from being scratched by the installed LED modules; subsequently, after the LED modules to be installed are placed in place, one of the two opposite sides of any two adjacent LED modules will be magnetically interlocked. The positioning magnetic slide bar of the LED module can be attracted by the magnet placed in the slide bar insertion slot of another magnetically interlocked LED module, thus extending out of the rectangular frame of the magnetically interlocked LED module and inserting into the corresponding slide bar insertion slot. This flatly positions and locks the two magnetically interlocked LED modules together, resulting in a near-seamless splicing between them. Moreover, there is no need to manually adjust the flatness and seams between the modules beforehand, which simplifies the installation process, reduces installation difficulty, and lowers labor costs. Conversely, when it is necessary to remove a magnetically interlocked LED module from the assembled display screen, after removing the corresponding fastener, the strong magnet placed in the middle of the magnetically interlocked LED module can be used to attract each positioning ferromagnetic slide bar of the magnetically interlocked LED module and retract it into the rectangular frame. Then, the magnetically interlocked LED module can be directly removed, and the whole process will not cause scratches or other damage to adjacent magnetically interlocked LED modules.

[0008] Furthermore, the first side is the top edge of the rectangular frame, the second side is the right side of the rectangular frame, the third side is the bottom edge of the rectangular frame, and the fourth side is the left side of the rectangular frame. In this case, the attraction force of the magnet on the corresponding positioning ferromagnetic slide rod in the adjacent magnetically interlocked LED module needs to be greater than the weight of the positioning ferromagnetic slide rod to ensure that the positioning ferromagnetic slide rod located at the top can slide upwards smoothly. Simultaneously, it allows for a certain gap between the wall of the slide rod insertion slot and the positioning ferromagnetic slide rod, and a certain gap between the wall of the sliding hole and the positioning ferromagnetic slide rod, to ensure that the positioning ferromagnetic slide rod can slide smoothly out of the sliding hole and smoothly insert into the slide rod insertion slot.

[0009] Furthermore, the first side is the right side of the rectangular frame, the second side is the bottom side of the rectangular frame, the third side is the left side of the rectangular frame, and the fourth side is the top side of the rectangular frame. In this case, there needs to be a certain amount of friction between the sliding hole on the second side and the positioning magnetic slide rod to prevent the lower positioning magnetic slide rod from sliding out directly under its own weight, thereby preventing the positioning magnetic slide rod from scratching the lower magnetically interlocked LED module during installation. The fourth side... The sum of the attraction force of the magnet at the edge to the corresponding positioning ferromagnetic slide rod in the adjacent magnetically interlocked LED module and the weight of the positioning ferromagnetic slide rod needs to be greater than the frictional force between the corresponding positioning ferromagnetic slide rod and the sliding hole to ensure that the positioning ferromagnetic slide rod can slide out smoothly from the sliding hole; there is a certain gap between the groove wall of the slide rod insertion slot at the third side and the positioning ferromagnetic slide rod, and there is a certain gap between the hole wall of the sliding hole at the first side and the positioning ferromagnetic slide rod to ensure that the positioning ferromagnetic slide rod can slide out smoothly from the sliding hole and smoothly insert into the slide rod insertion slot.

[0010] Furthermore, the first side is the bottom edge of the rectangular frame, the second side is the left side of the rectangular frame, the third side is the top edge of the rectangular frame, and the fourth side is the right side of the rectangular frame. At this point, there needs to be a certain amount of friction between the sliding hole on the first side and the positioning ferromagnetic slide rod to prevent the lower positioning ferromagnetic slide rod from sliding out directly under its own weight, thereby preventing the positioning ferromagnetic slide rod from scratching the lower magnetically interlocked LED module during the installation of the magnetically interlocked LED module; the sum of the attraction force of the magnet on the third side on the corresponding positioning ferromagnetic slide rod in the adjacent magnetically interlocked LED module and the weight of the positioning ferromagnetic slide rod needs to be greater than the friction force between the corresponding positioning ferromagnetic slide rod and the sliding hole to ensure that the positioning ferromagnetic slide rod can slide out smoothly from the sliding hole; there is a certain gap between the groove wall of the slide rod insertion slot on the fourth side and the positioning ferromagnetic slide rod, and there is a certain gap between the hole wall of the sliding hole on the second side and the positioning ferromagnetic slide rod to ensure that the positioning ferromagnetic slide rod can slide out smoothly from the sliding hole and smoothly insert into the slide rod insertion slot.

[0011] Furthermore, the first side is the left side of the rectangular frame, the second side is the top side of the rectangular frame, the third side is the right side of the rectangular frame, and the fourth side is the bottom side of the rectangular frame. In this case, the attraction force of the magnet on the corresponding positioning ferromagnetic slide rod in the adjacent magnetically interlocked LED module needs to be greater than the weight of the positioning ferromagnetic slide rod to ensure that the positioning ferromagnetic slide rod located at the top can slide upwards smoothly. Simultaneously, it allows for a certain gap between the wall of the slide rod insertion slot and the positioning ferromagnetic slide rod, and a certain gap between the wall of the sliding hole and the positioning ferromagnetic slide rod, to ensure that the positioning ferromagnetic slide rod can slide smoothly out of the sliding hole and smoothly insert into the slide rod insertion slot.

[0012] Furthermore, the sliding hole is a countersunk hole, and the positioning ferromagnetic slide rod includes a rod body. The outer end of the rod body passes through the sliding hole through the rectangular frame and is provided with a ferromagnetic adsorption piece. The ferromagnetic adsorption piece can abut against the stepped surface of the countersunk hole. The inner end of the rod body passes through the sliding hole through the rectangular frame and is provided with a limiting part. The limiting part can abut against the inner side of the rectangular frame and prevent the positioning ferromagnetic slide rod from detaching from the rectangular frame.

[0013] Furthermore, the bottom of the slide bar insertion slot is threaded with a fixing member, and the fixing member has a slot facing the slide bar insertion slot. A magnet is fixedly installed in the slot, and the magnet can be directly fixed in the slot by embedding, or the magnet can be glued in the slot with adhesives such as glue. Moreover, the depth of the magnet in the slide bar insertion slot can be adjusted by screwing the fixing member.

[0014] On the other hand, this utility model also provides a display screen, which includes a main frame. At least two of the above-mentioned magnetically interlocked LED modules are installed on the front of the main frame by fasteners. When installing each LED module, one of the above-mentioned magnetically interlocked LED modules (hereinafter referred to as LED modules) can be installed on the main frame by fasteners such as screws. Then, other LED modules are sequentially adsorbed around the LED module. With the cooperation of magnets and positioning ferromagnetic slide rods, the LED modules can be locked together to form a nearly seamless spliced ​​large screen. Finally, the other LED modules are fastened to the main frame by fasteners such as screws.

[0015] Furthermore, in any two adjacent magnetically interlocked LED modules, the positioning ferromagnetic slide rod of one of the magnetically interlocked LED modules can extend out of the rectangular frame and be inserted into the slide rod insertion slot of the other magnetically interlocked LED module and be attracted by the corresponding magnet, thereby positioning the two magnetically interlocked LED modules together.

[0016] Furthermore, when the positioning ferromagnetic slide rod of one magnetically interlocked LED module extends out of the rectangular frame and is inserted into the slide rod insertion slot of another magnetically interlocked LED module, there is a gap between the end of the positioning ferromagnetic slide rod and the magnet, so as to ensure that the two magnetically interlocked LED modules can be spliced ​​together almost seamlessly.

[0017] As can be seen from the above technical solutions, this utility model has the following advantages: First, when two or more magnetically interlocked LED modules provided by this utility model are spliced ​​together, this utility model can smoothly position and lock the two magnetically interlocked LED modules together with the cooperation of the magnet and the positioning ferromagnetic slide rod, and make the splicing between the two magnetically interlocked LED modules almost seamless; Second, since the positioning ferromagnetic slide rod in this utility model can slide relative to the rectangular frame, it can hide the positioning ferromagnetic slide rod in the rectangular frame under the action of external force, so that a certain magnetically interlocked LED module can be smoothly inserted into the corresponding installation position or removed from the corresponding installation position, and avoids scratching or other damage to adjacent magnetically interlocked LED modules during the process. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model (the lamp panel is not shown).

[0020] Figure 2 This is a cross-sectional view of Embodiment 1 of this utility model;

[0021] Figure 3 This is a cross-sectional view of Embodiment 2 of this utility model;

[0022] Figure 4 This is a cross-sectional view of Embodiment 3 of this utility model;

[0023] Figure 5 This is a cross-sectional view of Embodiment 4 of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of Embodiment 5 of this utility model;

[0025] Figure 7 This is a schematic diagram of the splicing of two magnetically interlocked LED modules in this utility model.

[0026] In the diagram: 1. Slide rod insertion slot; 2. Rectangular frame; 3. Ferromagnetic adsorption sheet; 4. Limiting part; 5. Rod body; 6. Magnet; 7. Fixing component; 8. Light panel; 9. Main frame; 10. First side; 11. Second side; 12. Third side; 13. Fourth side; 14. Sliding hole; 15. Positioning ferromagnetic slide rod; 16. Stepped surface; 17. Slot. Detailed Implementation

[0027] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0028] Example 1

[0029] like Figure 1 , Figure 2 As shown, this embodiment provides a first type of magnetically interlocking LED module, which includes a rectangular frame 2. A lamp panel 8 is detachably mounted on the front of the rectangular frame 2 using fasteners such as screws. The sides of the rectangular frame 2 are arranged clockwise as a first side 10, a second side 11, a third side 12, and a fourth side 13. Each of the first side 10 and the second side 11 has at least one sliding hole 14, and a positioning ferromagnetic slide rod 15 is slidably mounted in each sliding hole 14. Preferably, the sliding hole 14 is a countersunk hole structure. The positioning ferromagnetic slide rod 15 includes a rod body 5 slidably mounted in the sliding hole 14. The inner end of the rod body 5 passes through the sliding hole 14 through the rectangular frame 2 and is provided with a limiting part 4. The limiting part 4 can abut against the inner surface of the rectangular frame 2 and prevent the positioning ferromagnetic slide rod 15 from detaching from the rectangular frame 2. The outer end of the rod 5 passes through the sliding hole 14 through the rectangular frame 2 and is provided with a ferromagnetic adsorption piece 3. The inner end face of the ferromagnetic adsorption piece 3 can abut against the stepped surface 16 of the countersunk hole, the outer end face of the ferromagnetic adsorption piece 3 can be flush with the outer surface of the corresponding side of the rectangular frame 2, and the outer end of the ferromagnetic adsorption piece 3 can extend out of the rectangular frame 2.

[0030] Both the third side 12 and the fourth side 13 are provided with at least one slide bar insertion slot 1. A fixing member 7 is threadedly connected to the bottom of each slide bar insertion slot 1. A retaining groove 17 is provided on one end of the fixing member 7 facing the slide bar insertion slot 1. A magnet 6 is fixedly installed in the retaining groove 17, and the magnet 6 is positioned opposite to the positioning ferromagnetic slide bar 15. The magnet 6 can be directly embedded in the retaining groove 17, or it can be glued to the retaining groove 17 using adhesives such as glue. Furthermore, the depth of the magnet 6 in the slide bar insertion slot 1 can be adjusted by screwing on the fixing member 7.

[0031] At the same time, such as Figure 2 As shown, the first side 10 is the bottom edge of the rectangular frame 2, the second side 11 is the left side of the rectangular frame 2, the third side 12 is the top edge of the rectangular frame 2, and the fourth side 13 is the right side of the rectangular frame 2. Furthermore, a certain amount of friction is required between the sliding hole 14 of the first side 10 and the positioning magnetic slide rod 15 to prevent the lower positioning magnetic slide rod 15 from sliding out directly under its own weight, thereby preventing the positioning magnetic slide rod 15 from scratching the lower magnetically interlocked LED module during installation. The magnet 6 at the third side 12 is adjacent to... In the magnetically interlocked LED module, the sum of the attraction force of the corresponding positioning ferromagnetic slide rod 15 and the weight of the positioning ferromagnetic slide rod 15 needs to be greater than the frictional force between the corresponding positioning ferromagnetic slide rod 15 and the sliding hole 14 to ensure that the positioning ferromagnetic slide rod 15 can slide out smoothly from the sliding hole 14; there is a certain gap between the groove wall of the slide rod insertion slot 1 at the fourth side 13 and the positioning ferromagnetic slide rod 15, and there is a certain gap between the hole wall of the sliding hole 14 at the second side 11 and the positioning ferromagnetic slide rod 15 to ensure that the positioning ferromagnetic slide rod 15 can slide out smoothly from the sliding hole 14 and smoothly insert into the slide rod insertion slot 1.

[0032] When two or more LED modules with magnetic interlocking provided in this embodiment are spliced ​​together, each positioning ferromagnetic slide rod 15 can be manually pushed into the corresponding slide hole 14 first, and the outer end of the positioning ferromagnetic slide rod 15 is made flush with the outer surface of the corresponding side of the rectangular frame 2, thereby hiding the positioning ferromagnetic slide rod 15 inside the rectangular frame 2, so as to effectively prevent the lamp board on the adjacent LED module from being scratched by the installed LED module; then, when the LED module to be installed is placed in place, one of the two opposite sides of any two adjacent LED modules will be magnetically interlocked. The positioning magnetic slide bar 15 of the LED module can be attracted by the magnet 6 placed in the slide bar insertion slot 1 of another magnetically interlocked LED module, thereby extending out of the rectangular frame 2 of the magnetically interlocked LED module and inserting into the corresponding slide bar insertion slot 1. This flatly positions and locks the two magnetically interlocked LED modules together, making the splicing between the two magnetically interlocked LED modules almost seamless. Moreover, there is no need to manually adjust the flatness and seams between the modules first, which simplifies the installation process, reduces installation difficulty, and reduces labor costs. Conversely, when it is necessary to remove a magnetically interlocked LED module from the assembled display screen, after removing the corresponding fastener, the strong magnet 6 placed in the middle of the magnetically interlocked LED module can be used to attract each positioning ferromagnetic slide bar of the magnetically interlocked LED module and retract it into the rectangular frame 2. Then, the magnetically interlocked LED module can be directly removed, and the whole process will not cause scratches or other damage to adjacent magnetically interlocked LED modules.

[0033] Example 2

[0034] like Figure 3 As shown, this second embodiment provides a second type of magnetically interlocked LED module. Compared with the first embodiment, the difference in this second embodiment is that the first side 10 is the upper side of the rectangular frame 2, the second side 11 is the right side of the rectangular frame 2, the third side 12 is the lower side of the rectangular frame 2, and the fourth side 13 is the left side of the rectangular frame 2. At this time, the attraction force of the magnet 6 on the corresponding positioning ferromagnetic slide rod 15 in the adjacent magnetically interlocked LED module needs to be greater than the weight of the positioning ferromagnetic slide rod 15 to ensure that the positioning ferromagnetic slide rod 15 located on the upper side can slide upward smoothly; at the same time, it can make there a certain gap between the groove wall of the slide rod insertion slot 1 and the positioning ferromagnetic slide rod 15, and a certain gap between the hole wall of the sliding hole 14 and the positioning ferromagnetic slide rod 15, to ensure that the positioning ferromagnetic slide rod 15 can slide out of the sliding hole 14 smoothly and be smoothly inserted into the slide rod insertion slot 1.

[0035] Example 3

[0036] like Figure 4As shown, this third embodiment provides a third type of magnetically interlocked LED module. Compared with embodiment one, the difference in this third embodiment is that the first side 10 is the right side of the rectangular frame 2, the second side 11 is the bottom side of the rectangular frame 2, the third side 12 is the left side of the rectangular frame 2, and the fourth side 13 is the top side of the rectangular frame 2. At this time, there needs to be a certain friction between the sliding hole 14 of the second side 11 and the positioning ferromagnetic slide rod 15 to prevent the lower positioning ferromagnetic slide rod 15 from sliding out directly under its own weight, thereby preventing the positioning ferromagnetic slide rod 15 from scratching the lower magnetically interlocked LED module during installation. The magnet 6 on the fourth side has an attraction force on the corresponding positioning ferromagnetic slide rod 15 in the adjacent magnetically interlocked LED module, and the positioning ferromagnetic slide rod... The sum of the weights of 15 needs to be greater than the frictional force between the corresponding positioning ferromagnetic slide rod 15 and the sliding hole 14 to ensure that the positioning ferromagnetic slide rod 15 can slide out smoothly from the sliding hole 14; there is a certain gap between the groove wall of the slide rod insertion groove 1 at the third side 12 and the positioning ferromagnetic slide rod 15, and there is a certain gap between the hole wall of the sliding hole 14 at the first side 10 and the positioning ferromagnetic slide rod 15 to ensure that the positioning ferromagnetic slide rod 15 can slide out smoothly from the sliding hole 14 and smoothly insert into the slide rod insertion groove 1.

[0037] Example 4

[0038] like Figure 5 As shown, this fourth embodiment provides a fourth type of magnetically interlocked LED module. Compared with embodiment one, the difference in this fourth embodiment is that the first side 10 is the left side of the rectangular frame 2, the second side 11 is the top side of the rectangular frame 2, the third side 12 is the right side of the rectangular frame 2, and the fourth side 13 is the bottom side of the rectangular frame 2. At this time, the attraction force of the magnet 6 on the corresponding positioning ferromagnetic slide rod 15 in the adjacent magnetically interlocked LED module needs to be greater than the weight of the positioning ferromagnetic slide rod 15 to ensure that the positioning ferromagnetic slide rod 15 located on the top can slide upward smoothly; at the same time, it can make there a certain gap between the groove wall of the slide rod insertion slot 1 and the positioning ferromagnetic slide rod 15, and a certain gap between the hole wall of the sliding hole 14 and the positioning ferromagnetic slide rod 15, to ensure that the positioning ferromagnetic slide rod 15 can slide out of the sliding hole 14 smoothly and be smoothly inserted into the slide rod insertion slot 1.

[0039] Example 5

[0040] like Figure 6 , Figure 7As shown, this embodiment provides a display screen, which includes a main frame 9. At least two magnetically interlocked LED modules as described in Embodiment 1 are mounted on the front of the main frame 9 by fasteners such as screws. In any two adjacent magnetically interlocked LED modules, the positioning ferromagnetic slide rod 15 of one of the magnetically interlocked LED modules extends out of the rectangular frame 2 and can be inserted into the slide rod insertion slot 1 of the other magnetically interlocked LED module and attracted by the corresponding magnet 6, thereby positioning the two magnetically interlocked LED modules together. Preferably, there is a gap between the end of the positioning ferromagnetic slide rod 15 and the magnet 6 to ensure that the two magnetically interlocked LED modules can be spliced ​​together almost seamlessly.

[0041] Based on this, when installing each LED module, one of the aforementioned magnetically interlocked LED modules (hereinafter referred to as LED modules) can be installed on the main frame 9 using fasteners such as screws. Then, other LED modules can be sequentially attached around the LED module. With the cooperation of magnet 6 and positioning ferromagnetic slide rod, each LED module can be locked together to form a nearly seamless spliced ​​large screen. Finally, other LED modules can be fastened to the main frame 9 using fasteners such as screws.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A magnetically interlocked LED module, comprising a rectangular frame (2), wherein a lamp plate (8) is detachably mounted on the front of the rectangular frame (2) by fasteners; characterized in that, The sides of the rectangular frame (2) are arranged clockwise as a first side (10), a second side (11), a third side (12), and a fourth side (13). Each of the first side (10) and the second side (11) has at least one sliding hole (14). A positioning ferromagnetic slide rod (15) is slidably installed in each sliding hole (14). The outer end of the positioning ferromagnetic slide rod (15) can extend out of the rectangular frame (2), and the outer end of the positioning ferromagnetic slide rod (15) can interact with the rectangular frame. The outer surface of the corresponding side of the frame (2) is flush; the third side (12) and the fourth side (13) are each provided with at least one slide bar insertion slot (1), and a magnet (6) is fixedly installed in each slide bar insertion slot (1). The magnet (6) provided on the third side (12) is arranged opposite to the positioning ferromagnetic slide bar (15) provided on the first side (10); the magnet (6) provided on the fourth side (13) is arranged opposite to the positioning ferromagnetic slide bar (15) provided on the second side (11).

2. The LED module with magnetic interlocking positioning according to claim 1, characterized in that, The first side (10) is the top side of the rectangular frame (2), the second side (11) is the right side of the rectangular frame (2), the third side (12) is the bottom side of the rectangular frame (2), and the fourth side (13) is the left side of the rectangular frame (2).

3. The LED module with magnetic interlocking positioning according to claim 1, characterized in that, The first side (10) is the right side of the rectangular frame (2), the second side (11) is the bottom side of the rectangular frame (2), the third side (12) is the left side of the rectangular frame (2), and the fourth side (13) is the top side of the rectangular frame (2).

4. The LED module with magnetic interlocking positioning according to claim 1, characterized in that, The first side (10) is the bottom side of the rectangular frame (2), the second side (11) is the left side of the rectangular frame (2), the third side (12) is the top side of the rectangular frame (2), and the fourth side (13) is the right side of the rectangular frame (2).

5. The LED module with magnetic interlocking positioning according to claim 1, characterized in that, The first side (10) is the left side of the rectangular frame (2), the second side (11) is the top side of the rectangular frame (2), the third side (12) is the right side of the rectangular frame (2), and the fourth side (13) is the bottom side of the rectangular frame (2).

6. The LED module with magnetic interlocking positioning according to claim 1, characterized in that, The sliding hole (14) is a countersunk hole. The positioning ferromagnetic sliding rod (15) includes a rod body (5). The outer end of the rod body (5) passes through the sliding hole (14) through the rectangular frame (2) and is provided with a ferromagnetic adsorption piece (3). The ferromagnetic adsorption piece (3) can abut against the stepped surface (16) of the countersunk hole. The inner end of the rod body (5) passes through the sliding hole (14) through the rectangular frame (2) and is provided with a limiting part (4). The limiting part (4) can abut against the inner side of the rectangular frame (2).

7. The LED module with magnetic interlocking positioning according to claim 1, characterized in that, The bottom of the slide bar insertion groove (1) is threaded with a fixing member (7), and a slot (17) is provided on one end of the fixing member (7) facing the slide bar insertion groove (1), and a magnet (6) is fixedly installed in the slot (17).

8. A display screen, characterized in that, Includes a main frame (9), the front of which is fitted with at least two LED modules magnetically interlocked according to any one of claims 1-7 by fasteners.

9. The display screen according to claim 8, characterized in that, In any two adjacent magnetically interlocked LED modules, the positioning ferromagnetic slide bar (15) of one of the magnetically interlocked LED modules extends out of the rectangular frame (2) and can be inserted into the slide bar insertion slot (1) of the other magnetically interlocked LED module and be attracted by the corresponding magnet (6).

10. The display screen according to claim 9, characterized in that, When the positioning ferromagnetic slide rod (15) of one magnetically interlocked LED module extends out of the rectangular frame (2) and is inserted into the slide rod insertion slot (1) of another magnetically interlocked LED module, there is a gap between the end of the positioning ferromagnetic slide rod (15) and the magnet (6).

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