Screen power connection assembly and 3D screen

Abstract

The invention discloses a screen power connection assembly and a 3D screen, and relates to the technical field of electronic display, the screen power connection assembly comprises a support structure and LED screens, the support structure comprises a plurality of stand columns distributed at equal intervals, one side of the support structure is provided with a plurality of mutually spliced LED screens, and transmission lines are installed in the stand columns; according to the multi-screen parallel power supply device, multi-screen parallel power supply is achieved through the transmission line in the stand column, operation of other screens is not affected when a single screen breaks down, and the power supply efficiency is improved. The power connection component and the LED screen shell are integrally designed, extra wiring operation is not needed during installation, the LED screen only needs to be placed on the support structure, the power connection component can automatically make contact with the power connection contact piece set, rapid power connection is achieved, the installation process is simplified, and the installation time and the labor cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic display, and particularly to a screen power connection component and a 3D screen. Background Art

[0002] As a display device that can provide an immersive visual experience, a 3D screen is usually composed of multiple LED screens spliced together to achieve a large-area and high-resolution display effect. Most of the existing 3D screen power connection methods adopt traditional cable connection methods. During the installation process, since the cables need to be manually inserted into the interfaces of the LED screens, poor contact is likely to occur. Secondly, the LED screens are electrically connected to each other. When a circuit problem occurs in one of the LED screens, it will affect other connected LED screens, resulting in power failure in some areas of the 3D screen.

[0003] During the installation of a traditional 3D screen, individual wiring operations need to be performed on each LED screen. This not only requires professional technicians, but also the wiring process is complex and prone to wiring errors. For example, in a large 3D screen project, it may involve the wiring of dozens or even hundreds of LED screens. A wiring error in any link may cause the entire 3D screen to malfunction. Summary of the Invention

[0004] The purpose of the present invention is to provide a screen power connection component and a 3D screen, which solve the problem of inconvenient power connection during the splicing of existing LED screens, and improve the situation that when the LED screens are electrically connected to each other, a circuit problem in a single LED screen is likely to cause power failure in other connected LED screens and some areas of the 3D screen.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows: A screen power connection component includes a support structure and an LED screen. The support structure includes several equally spaced columns. On one side of the support structure, there are several mutually spliced LED screens. Transmission lines are installed inside the columns. On one side of the columns, several groups of power connection contact groups electrically connected to the transmission lines are equally spaced. Each group of power connection contact groups includes two mutually insulated conductive contacts. Power connection components are installed on both sides inside the housing of the LED screen. The power connection components include conductive contacts matching the power connection contact groups. When the LED screen is installed on the support structure, the power connection components on both sides of its housing come into contact with the power connection contact groups at corresponding positions on both sides of the columns to form an electrical connection. The housings of the mutually spliced LED screens are connected by symmetrically arranged connection components.

[0006] Preferably, the power connection component includes a movable piece and a power connection terminal. The movable pieces are symmetrically and slidably connected inside the housing of the LED screen. The power connection terminals are installed on the movable pieces. Strip-shaped holes are symmetrically formed on one side of the housing of the LED screen close to the column. The elastic power connection terminals are aligned with the strip-shaped holes one by one. When the movable piece slides inside the housing, a part of the power connection terminal can slide out of the strip-shaped hole and fit with the power connection contact group on the column to form an electrical connection.

[0007] Preferably, the connection component includes a plugging rod and a locking piece. Plugging holes are symmetrically formed on both sides of the housing of the LED screen. The housings of the mutually spliced LED screens are connected by the plugging rod. The two ends of the plugging rod are respectively inserted into the corresponding plugging holes. First inclined surfaces are provided at both ends of the plugging rod. The first inclined surfaces are used to push the movable piece to slide through the inclined surfaces during the process of inserting the plugging rod into the housing, so that a part of the power connection terminal slides out of the strip-shaped hole. A locking hole is formed at the top of the plugging rod. Fixed strips are equidistantly and fixedly connected to the side of the movable piece away from the column. A locking piece is slidably connected inside the fixed strip. A second inclined surface is provided at the bottom of the locking piece. When the plugging rod is inserted into the housing, the second inclined surface contacts the top of the plugging rod and pushes the locking piece to rise. When the plugging rod is inserted to the specified position, the locking hole is aligned with the locking piece, and the locking piece descends under the action of its own gravity and is inserted into the locking hole to position the plugging rod.

[0008] Preferably, a plurality of sliding rods are slidably connected inside the movable piece. One end of the sliding rod is fixedly connected to the inner wall of the housing of the LED screen. Springs are sleeved on the outer sides of the sliding rods. The movable piece is elastically connected to the inner wall of the housing through the springs.

[0009] Preferably, fixing pieces are equidistantly provided on one side of the column. The fixing pieces are arranged at the splicing positions of the upper and lower distributed LED screens. Waist-shaped holes are formed at the four corners of the fixing pieces. Threaded cylinders are fixedly connected to the corresponding positions of the four corners inside the housing of the LED screen. Bolts are slidably inserted into the waist-shaped holes. One end of the bolt sequentially penetrates through the housing, the movable piece, the plugging rod, and the locking piece of the corresponding LED screen and is threadedly connected to the threaded cylinder.

[0010] Preferably, the support structure further includes a cross beam. The cross beam is arranged at the bottom end of the column, and the bottom ends of the columns are fixedly connected to the cross beam. The top of the cross beam contacts the adjacent LED screen. The LED screen is supported by the cross beam to make the installation of the LED screen more stable and regular.

[0011] Preferably, strip-shaped grooves are formed on both sides of the locking piece to limit the sliding range of the locking piece to prevent the locking piece from separating from the fixed strip during the sliding process.

[0012] Preferably, adjusting strips are symmetrically and slidably connected inside the housing of the LED screen. One side of the locking piece is fixedly connected to the corresponding adjusting strip. By dragging the adjusting strip, the two locking pieces on the same side can be driven to slide simultaneously so as to pull the locking piece out of the locking hole.

[0013] Preferably, a gasket is provided between the bolt and the fixing piece, which expands the contact area between the end of the bolt and the connecting component, making the pressure distribution more uniform, thereby enhancing the fastening effect.

[0014] The present invention also provides a 3D screen, which is assembled using the above-mentioned screen power connection component, and the 3D screen is formed by splicing a plurality of LED screens on a bracket structure.

[0015] Compared with the prior art, the advantages of the present invention are as follows: The present invention realizes parallel power supply for multiple screens through the transmission line inside the column. A single screen failure does not affect the operation of other screens, improving the system stability. The power connection component and the LED screen housing are integrally designed. During installation, no additional wiring operation is required. Just place the LED screen on the bracket structure, and the power connection component can automatically contact the power connection contact group to achieve quick power connection, simplifying the installation process and reducing the installation time and labor cost.

[0016] The present invention simultaneously triggers the sliding of the movable piece and the self-locking of the locking piece through the insertion action of the insertion rod, ensuring that the power connection terminal is automatically exposed after splicing, and the non-power connection terminal remains hidden, avoiding the risk of accidental electric shock. The movable piece, the insertion rod, the locking piece and the housing of the LED screen are synchronously fixed by bolts, enhancing the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the bracket structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the LED screen structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the housing structure of the LED screen of the present invention.

[0021] Figure 5 It is a schematic diagram of the internal structure of the housing of the LED screen of the present invention.

[0022] Figure 6 It is a schematic diagram of the movable piece structure of the present invention.

[0023] Reference numerals: 1, column; 2, transmission line; 3, power connection contact group; 31, conductive contact; 4, housing; 5, conductive contact point; 6, movable piece; 7, power connection terminal; 8, strip-shaped hole; 9, insertion rod; 10, locking piece; 11, jack; 12, first inclined surface; 13, locking hole; 14, fixing strip; 15, second inclined surface; 16, sliding rod; 17, spring; 18, fixing piece; 19, waist-shaped hole; 20, threaded cylinder; 21, bolt; 22, cross beam; 23, strip-shaped groove; 24, adjusting strip; 25, gasket; 100, bracket structure; 200, LED screen; 300, power connection component; 400, connection component. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1 to 6 , this embodiment provides a screen power connection component, including a bracket structure 100 and an LED screen 200. The bracket structure 100 includes a plurality of columns 1 evenly distributed at equal intervals. On one side of the bracket structure 100, there are a plurality of spliced LED screens 200. A transmission line 2 is installed inside the column 1. On one side of the column 1, there are a plurality of groups of power connection contact groups 3 electrically connected to the transmission line 2 at equal intervals. Each group of power connection contact groups 3 includes two mutually insulated conductive contacts 31. On both sides inside the housing 4 of the LED screen 200, power connection components 300 are installed. The power connection component 300 includes conductive contact points 5 matching the power connection contact groups 3. When the LED screen 200 is installed on the bracket structure 100, the power connection components 300 on both sides of its housing 4 are in contact with the power connection contact groups 3 at corresponding positions on both sides of the columns 1, forming an electrical connection. The housings 4 of the mutually spliced LED screens 200 are connected by symmetrically arranged connection components 400; By equidistantly arranging multiple groups of conductive contacts on the side wall of the column 1, modular power connection of the LED screen 200 is realized, replacing the traditional cable connection method. The transmission line 2 inside the column 1 realizes parallel power supply for multiple screens. When the display module of one of the LED screens 200 fails, the other LED screens 200 can still remain powered on through the transmission line 2, so that a single screen failure does not affect the operation of other screens, improving the system stability.

[0026] The power connection component 300 includes a movable piece 6 and a power connection terminal 7. The movable piece 6 is symmetrically and slidably connected inside the housing 4 of the LED screen 200. The power connection terminal 7 is installed on the movable piece 6. Symmetric strip-shaped holes 8 are opened on one side of the housing 4 of the LED screen 200 close to the column 1. The power connection terminals 7 are aligned with the strip-shaped holes 8 one by one. When the movable piece 6 slides inside the housing 4, a part of the power connection terminal 7 can slide out of the strip-shaped hole 8 and fit with the power connection contact group 3 on the column 1, forming an electrical connection; The extension and retraction of the elastic electrical connection terminal 7 are controlled by sliding the movable piece 6 to achieve contact with the electrical contact piece group 3 of the column 1, forming an electrical connection.

[0027] The connection component 400 includes a plugging rod 9 and a locking piece 10. Jacks 11 are symmetrically opened on both sides of the housing 4 of the LED screen 200. The housings 4 of the mutually spliced LED screens 200 are connected by the plugging rod 9. Both ends of the plugging rod 9 are respectively inserted into the corresponding jacks 11. First inclined surfaces 12 are provided at both ends of the plugging rod 9. The first inclined surfaces 12 are used to push the movable piece 6 to slide through the inclined surface during the process of inserting the plugging rod 9 into the housing 4, so that a part of the electrical connection terminal 7 slides out of the strip-shaped hole 8. A locking hole 13 is opened at the top of the plugging rod 9. Fixed strips 14 are fixedly connected at equal intervals on the side of the movable piece 6 away from the column 1. A locking piece 10 is slidably connected inside the fixed strip 14. A second inclined surface 15 is provided at the bottom of the locking piece 10. When the plugging rod 9 is inserted into the housing 4, the second inclined surface 15 contacts the top of the plugging rod 9 and pushes the locking piece 10 to rise. When the plugging rod 9 is inserted to the designated position, the locking hole 13 is aligned with the locking piece 10, and the locking piece 10 descends under its own gravity and is inserted into the locking hole 13 to position the plugging rod 9; Through the insertion action of the plugging rod 9, the movable piece 6 is linked to slide, so that the electrical connection terminal 7 of the LED screen 200 that needs to be electrically connected slides out of the strip-shaped hole 8 to form an electrical connection. The electrical connection terminals 7 of the LED screens 200 that do not need to be electrically connected remain hidden when the movable piece 6 is not pushed, avoiding contact with the electrical contact piece group 3 of the column 1 and improving the installation safety.

[0028] A plurality of sliding rods 16 are slidably connected inside the movable piece 6. One end of the sliding rod 16 is fixedly connected to the inner wall of the housing 4 of the LED screen 200. A spring 17 is sleeved outside the sliding rod 16. The movable piece 6 is elastically connected to the inner wall of the housing 4 through the spring 17; When the plugging rod 9 is inserted into the jack 11, the first inclined surface 12 of the plugging rod 9 pushes the movable piece 6 to slide along the sliding rod 16, and the spring 17 is compressed. When the LED screen 200 needs to be disassembled, the locking piece 10 is pushed by an external force to disengage from the locking hole 13, and the movable piece 6 automatically resets under the elastic restoring force of the spring 17, driving the electrical connection terminal 7 to retract into the strip-shaped hole 8 to avoid the risk of live operation.

[0029] Fixed pieces 18 are provided at equal intervals on one side of the column 1. The fixed pieces 18 are arranged at the splicing positions of the LED screens 200 distributed up and down. Waist-shaped holes 19 are opened at the four corners of the fixed pieces 18. Threaded cylinders 20 are fixedly connected to the corresponding positions of the four corners inside the housing 4 of the LED screen 200. Bolts 21 are slidably inserted into the waist-shaped holes 19. One end of the bolt 21 sequentially passes through the housing 4, the movable piece 6, the plugging rod 9, and the locking piece 10 of the corresponding LED screen 200 and is threadedly connected to the threaded cylinder 20; Through the cooperation of the fixing piece 18 and the bolt 21, the splicing accuracy of the LED screens 200 distributed up and down is ensured, avoiding excessive splicing gaps or misalignment. A plurality of LED screens 200 are fixedly installed on the bracket structure 100. The bolt 21 synchronously fixes the movable piece 6, the insertion rod 9, and the locking piece 10 to the housing of the LED screen 200, enhancing the stability of the overall structure. At the same time, once the bolt 21 is assembled, it can ensure that the locking piece 10 is always inserted into the locking hole 13, ensuring that the power connection terminal 7 is in contact with the power connection contact group 3 on the column 1.

[0030] The bracket structure 100 further includes a cross beam 22. The cross beam 22 is arranged at the bottom end of the column 1, and the bottom ends of the columns 1 are fixedly connected to the cross beam 22. The top of the cross beam 22 is in contact with the adjacent LED screen 200. The LED screen 200 is supported by the cross beam 22, making the LED screen 200 more stable and regular during installation.

[0031] Strip-shaped grooves 23 are formed on both sides of the locking piece 10. The sliding range of the locking piece 10 is limited by the strip-shaped grooves 23 to prevent the locking piece 10 from separating from the fixing strip 14 during sliding.

[0032] Adjusting strips 24 are symmetrically and slidably connected inside the housing 4 of the LED screen 200. One side of the locking piece 10 is fixedly connected to the corresponding adjusting strip 24. By dragging the adjusting strip 24, the two locking pieces 10 on the same side can be driven to slide simultaneously, so as to pull the locking piece 10 out of the locking hole 13.

[0033] A gasket 25 is arranged between the bolt 21 and the fixing piece 18. The gasket 25 is of an annular structure. The inner diameter of its inner ring matches the diameter of the screw of the bolt 21, and the outer diameter is larger than the width of the waist-shaped hole 19. The contact area between the end of the bolt 21 and the connecting component is enlarged through the gasket 25, making the pressure distribution more uniform, thereby enhancing the fastening effect.

[0034] Please refer to Figures 1 to 6 , the present invention also provides a 3D screen, which is assembled by using any one of the above screen power connection components, and the 3D screen is formed by splicing a plurality of LED screens 200 on the bracket structure 100.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screen power connection assembly, comprising a support structure (100) and an LED screen (200), wherein the support structure (100) comprises a plurality of equally spaced columns (1), and a plurality of mutually spliced ​​LED screens (200) are arranged on one side of the support structure (100), characterized in that: A transmission line (2) is installed inside the column (1), and a plurality of groups of electrical contact pieces (3) electrically connected to the transmission line (2) are equidistantly arranged on one side of the column (1), each group of electrical contact pieces (3) comprising two mutually insulated conductive contact pieces (31). Electrical connection components (300) are installed on both sides of the shell (4) of the LED screen (200), and the electrical connection components (300) comprise conductive contacts (5) matching the electrical contact pieces (3). When the LED screen (200) is installed on the support structure (100), the electrical connection components (300) on both sides of the shell (4) contact the electrical contact pieces (3) at corresponding positions of the columns (1) on both sides to form an electrical connection. The shells (4) of the LED screens (200) that are spliced ​​to each other are connected via symmetrically arranged connection components (400).

2. The screen power connection assembly according to claim 1, characterized in that: The power connection component (300) comprises a movable sheet (6) and a power connection terminal (7). The movable sheet (6) is symmetrically slidably connected inside the shell (4) of the LED screen (200), and the power connection terminal (7) is installed on the movable sheet (6). The shell (4) of the LED screen (200) is symmetrically provided with strip holes (8) on one side close to the column (1). The power connection terminal (7) and the strip holes (8) are aligned one by one. When the movable sheet (6) slides along the inside of the shell (4), a part of the power connection terminal (7) can slide out of the strip hole (8) and fit with the power connection contact sheet group (3) on the column (1) to form an electrical connection.

3. The screen power connection assembly according to claim 2, characterized in that: The connecting assembly (400) comprises a plug rod (9) and a locking piece (10). The housing (4) of the LED screen (200) is symmetrically provided with plug holes (11) on both sides. The housings (4) of the LED screens (200) that are spliced ​​to each other are connected via the plug rod (9). The two ends of the plug rod (9) are respectively inserted into the corresponding plug holes (11). Both ends of the plug rod (9) are provided with a first inclined surface (12). The first inclined surface (12) is used to push the movable sheet (6) to slide through the inclined surface during the process of inserting the plug rod (9) into the housing (4), so that a part of the power terminal (7) slides out of the strip hole (8). The top of the plug rod (9) is provided with a plug rod (9). A locking hole (13) is provided, and a fixing strip (14) is equidistantly fixedly connected to one side of the movable sheet (6) away from the column (1), and the locking sheet (10) is slidably connected inside the fixing strip (14). A second inclined surface (15) is provided at the bottom of the locking sheet (10). When the plug-in rod (9) is inserted into the housing (4), the second inclined surface (15) contacts the top of the plug-in rod (9) to push the locking sheet (10) upward. When the plug-in rod (9) is inserted into a specified position, the locking hole (13) is aligned with the locking sheet (10), and the locking sheet (10) descends under the action of its own gravity and is inserted into the locking hole (13) to position the plug-in rod (9).

4. The screen power connection assembly according to claim 3, characterized in that: The movable sheet (6) is slidably connected to a plurality of slide bars (16), one end of the slide bar (16) is fixedly connected to the inner wall of the housing (4) of the LED screen (200), a spring (17) is sleeved on the outer side of the slide bar (16), and the movable sheet (6) is elastically connected to the inner wall of the housing (4) via the spring (17).

5. The screen power connection assembly according to claim 4, characterized in that: A fixing plate (18) is equidistantly provided on one side of the column (1), and the fixing plate (18) is arranged at the joint of the upper and lower distributed LED screens (200). The fixing plate (18) is provided with waist-shaped holes (19) at four corners. The four corners of the housing (4) of the LED screen (200) corresponding to the waist-shaped holes (19) are fixedly connected with threaded tubes (20), and bolts (21) are slidably inserted into the waist-shaped holes (19). One end of the bolt (21) passes through the housing (4), movable plate (6), plug-in rod (9), and locking plate (10) of the corresponding LED screen (200) in sequence, and is then threadedly connected to the threaded tube (20).

6. The screen power connection assembly according to claim 1, characterized in that: The support structure (100) further comprises a crossbeam (22), wherein the crossbeam (22) is arranged at the bottom end of the column (1), and the bottom end of the column (1) is fixedly connected to the crossbeam (22), and the top of the crossbeam (22) is in contact with an adjacent LED screen (200).

7. The screen power connection assembly according to claim 3, characterized in that: Strip-shaped grooves (23) are formed on both sides of the locking piece (10).

8. The screen power connection assembly according to claim 3, characterized in that: An adjustment bar (24) is symmetrically and slidably connected inside the housing (4) of the LED screen (200), and one side of the locking piece (10) is fixedly connected to the corresponding adjustment bar (24).

9. The screen power connection assembly according to claim 5, characterized in that: A gasket (25) is provided between the bolt (21) and the fixing plate (18).

10. A 3D screen, characterized in that: The 3D screen is assembled using any one of the screen power connection components of claims 1 to 9, and the 3D screen is composed of a plurality of LED screens (200) spliced ​​on a support structure (100).

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