LED box body and display screen

Abstract

The utility model relates to the technical field of LED screens, in particular to an LED box and a display screen, which comprise a profile frame, a HUB board, a power signal conversion board, an iron bar and a plurality of COB modules. The profile frame is made of an aluminum profile, a plurality of grooves are formed in the upper portion of the profile frame, an iron bar is inserted in each groove, the COB modules are connected with the iron bars through magnetic attraction and then connected to the upper surface of the profile frame, and the COB modules are arranged in a matrix mode. The HUB board is fixed in the profile frame and located in the center of the profile frame, the power signal conversion board is located between the profile frame and the COB modules, the top of the power signal conversion board is electrically connected to each COB module, and the bottom of the power signal conversion board is electrically connected to the HUB board. The LED box body and the display screen are low in production and installation cost, high in structural strength and capable of being rapidly expanded on a large scale, meanwhile, the power source and the signal interface are in hard connection through cooperation of the contact pins and the slots, and installation and detachment are simple and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of LED screens, in particular to an LED box and a display screen. Background Art

[0002] LED dot matrix displays of graphics and Chinese characters are increasingly needed in large shopping malls, stations, docks, subway stations, and various service windows. The LED industry has become a rapidly developing emerging industry with a huge market space and broad prospects. With the rapid development of the information industry, LED display, as an important means of information dissemination, has been widely used in public places indoors and outdoors where service content and service purposes need to be promoted, such as indoor and outdoor public place advertising, airport station passenger guidance information, bus station announcement system, securities and bank information display, restaurant quotation information display, highway variable information board, stadium game broadcast, building lighting, traffic lights, landscape lighting, etc. Obviously, LED display has become an important symbol of urban lighting, modernization, and information society.

[0003] In the prior art, conventional LED display screens have the following main disadvantages: the box used to fix the LED display screen usually needs to be cast, which is costly and has a long processing cycle. At the same time, the intricate power and signal lines inside the box are messy, which makes installation and disassembly time-consuming and laborious. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model provides an LED box and a display screen, aiming to solve the problem of complicated and long processing cycle of the LED display screen box, and at the same time solves the problem of time-consuming, labor-intensive and error-prone installation and disassembly caused by cable connections inside the box.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] An LED box and display screen, comprising a profile frame, a HUB board, a power signal conversion board, an iron bar and a plurality of COB modules. The profile frame is an aluminum profile, the upper part of the profile frame has a plurality of grooves and the iron bar is inserted into each of the grooves, the plurality of COB modules are connected to the iron bars by magnetic attraction and then connected to the upper surface of the profile frame, and the plurality of COB modules are arranged in a matrix. The HUB board is fixed inside the profile frame and located at the center of the profile frame, the power signal conversion board is located between the profile frame and the COB module, the top of the power signal conversion board is electrically connected to each of the COB modules, and the bottom of the power signal conversion board is electrically connected to the HUB board.

[0009] Further technical features are as follows. The profile frame is at least one and is a hollowed-out skeleton-like structure inside. COB baffles are respectively arranged at the left and right edges of the profile frame, and the profile frame and the COB baffles are connected by connectors. A set of notches are opened on each COB baffle, and the notches are used for passing power cables. A set of locking ports are respectively arranged at the front and rear edges of the profile frame, and adjacent profile frames are connected by inserting quick locks at the locking ports.

[0010] Further technical features are as follows. The quick lock includes a detachable lock body and a lock body fixing member fixed at the locking port, and the lock body is inserted into the lock body fixing member to realize the fixed connection between adjacent profile frames.

[0011] Further technical features are as follows. An operation opening is provided on the bottom surface of the profile frame corresponding to the quick lock.

[0012] Further technical features are as follows. A HUB board installation position is arranged at the center of the profile frame. The HUB board is installed at the HUB board installation position, and the four bottom corners are supported and connected to the HUB board installation position by copper posts. The bottom of the copper post is threadedly connected to the HUB board installation position, and the top is threadedly connected to the HUB board.

[0013] Further technical features are as follows. The back surface of each COB module has a first power pin and a first signal pin. Multiple groups of second power pins and second signal pins are provided on the upper surface of the HUB board. The power signal conversion board is fixed on the upper surface of the profile frame by a connector. A first power pin slot and a first signal pin slot are respectively arranged on the upper surface of the power signal conversion board corresponding to the first power pin and the first signal pin, and a second power pin slot and a second signal pin slot are respectively arranged on the lower surface corresponding to the second power pin and the second signal pin.

[0014] Further technical features are as follows. On each power signal conversion board, each second power pin slot is electrically connected to at least one first power pin slot, and each second signal pin slot is electrically connected to at least one first signal pin slot.

[0015] Further technical features are as follows. It further includes a power supply, which is located inside the profile frame and close to the HUB board. The power supply is used to supply power to the HUB board. A network cable interface is also provided on the HUB board, and the network cable interface is used for communication between multiple LED cabinet units.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the present utility model are as follows: Compared with the method of casting and processing the LED display box in the prior art, the LED display box in the present utility model uses aluminum profiles. By using iron bars to be clamped into the grooves of the aluminum profiles, the problem that the aluminum profiles cannot be magnetically connected to the COB module is overcome, and at the same time, the manufacturing cost of the aluminum profiles is lower. Secondly, the power signal conversion board provided in the present utility model integrates multiple groups of power and signal interfaces, realizing the hard connection between the HUB board and the COB module, avoiding the problem of a large number of wiring harnesses being intertwined and wound during installation, and the installation and disassembly are simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall exploded structural schematic diagram of the LED box and the display screen;

[0019] Figure 2 is Figure 1 an overall back structural schematic diagram of the shown embodiment;

[0020] Figure 3 is Figure 1 an enlarged view of part A in

[0021] Figure 4 is Figure 1 an enlarged view of part B in

[0022] Figure 5 is Figure 1 an enlarged view of part C in

[0023] Figure 6 is Figure 1 an enlarged view of part D in

[0024] Figure 7 is a structural schematic diagram of the power signal conversion board;

[0025] Figure 8 is a three-dimensional view of the COB module with the back facing up;

[0026] Figure 9 is Figure 8 an enlarged view of part E in

[0027]

DESCRIPTION OF THE REFERENCE NUMERALS

[0028] 1: Profile frame; 2: HUB board; 3: Power signal conversion board; 4: Iron bar; 5: COB module; 6: COB baffle; 7: Quick lock; 8: Copper column; 9: Power supply; 10: Network cable interface;

[0029] 11: Lock port; 12: Operation port; 13: HUB board installation position; 14: Groove;

[0030] 21: Second power pin; 22: Second signal pin;

[0031] 31: First power pin slot; 32: First signal pin slot; 33: Second power pin slot; 34: Second signal pin slot;

[0032] 51: First power pin; 52: First signal pin;

[0033] 61: Notch;

[0034] 71: Lock body; 72: Lock body fixing part. Detailed implementation manner

[0035] In order to better explain the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the accompanying drawings through specific implementation manners.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0037] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] This embodiment provides an LED box body and a display screen, as Figure 1As shown in the figure, it includes a profile frame 1, a HUB board 2, a power signal conversion board 3, an iron bar 4, and COB modules 5 (8 in this embodiment). The profile frame 1 is made of aluminum profile. The upper part of the profile frame 1 has a plurality of grooves 15, and an iron bar 4 is inserted into each groove 15 (it should be noted that the iron bar 4 here can be replaced by other metal bars capable of magnetic connection). The 8 COB modules 5 are magnetically connected to the iron bar 4 and then connected to the upper surface of the profile frame 1, and the 8 COB modules 5 are arranged in a matrix. The HUB board 2 is fixed inside the profile frame 1 and located at the center of the profile frame 1. The power signal conversion board 3 is located between the profile frame 1 and the COB modules 5. Its top is electrically connected to each COB module 5 respectively, and its bottom is electrically connected to the HUB board 2.

[0040] In this example, the profile frame 1 is made of aluminum profile. By using the iron bar 4 to be snapped into the groove of the aluminum profile, the problem that the LED display box of the aluminum profile cannot be magnetically connected to the COB module 5 is overcome. In this example, by setting the power signal conversion board 3, a hard connection between the power signal conversion board 3 and the COB module 5 is realized, avoiding the problem of a large number of wiring harnesses being intertwined during installation. The installation and disassembly are simple and efficient.

[0041] In this embodiment, there is at least one profile frame 1, and its interior presents a hollow skeleton-like structure. COB baffles 6 are respectively arranged at the left and right edges of the profile frame 1, and the profile frame 1 and the COB baffles 6 are connected by connectors, preferably threaded connections, which are convenient for installation and disassembly. A set of notches 61 are opened on each COB baffle 6 for passing power cables. A set of locking ports 11 are respectively arranged at the front and rear edges of the profile frame 1. Adjacent profile frames 1 are connected by inserting quick locks 7 at the locking ports 11. By setting the quick locks 7, the LED display can be quickly and massively expanded, which is very convenient.

[0042] Furthermore, the quick lock 7 includes a detachable lock body 71 and a lock body fixing part 72 fixed at the locking port 11. The lock body 71 is inserted into the lock body fixing part 72 to realize the fixed connection between adjacent profile frames 1. At the same time, an operation port 12 is opened on the bottom surface of the profile frame 1 corresponding to the quick lock 7. The detachable lock body 71 and the lock body fixing part 72 are convenient for replacing the damaged lock body 7 or the lock body fixing part 72, and the reserved appropriate operation port 12 meets the space required for operation.

[0043] In this embodiment, a HUB board mounting position 13 is provided at the center of the profile frame 1. The HUB board 2 is mounted on the HUB board mounting position 13, and the four corners of the bottom are supported and connected by copper posts 8. The bottom of the copper post 8 is threadedly connected to the HUB board mounting position 13, and the top is threadedly connected to the HUB board 2. This is because the hard connection between the HUB board 2 and the power signal conversion board 3 requires high installation accuracy. By using the copper posts 8, the positioning accuracy can be increased, and the HUB board mounting position 13 can be used to ensure quickly finding the mounting position and performing high-precision installation.

[0044] In this embodiment, the upper surface of the profile frame 1 has a plurality of mutually parallel iron bar mounting grooves 14, and a plurality of iron bars 4 are respectively inserted into the corresponding iron bar mounting grooves 14. It should be noted here that when selecting the aluminum profile, the iron bar mounting grooves 14 can choose the aluminum profile with a notch for welding. Compared with the casting parts in the prior art, the aluminum profile not only has high precision, light weight and low cost, but also has high strength to ensure the stable and firm installation of the LED display screen.

[0045] Specifically, the back of each COB module 5 has a first power pin 51 and a first signal pin 52. The upper surface of the HUB board 2 is provided with multiple groups of second power pins 21 and second signal pins 22. The power signal conversion board 3 is fixed to the upper surface of the profile frame 1 through a connector. The upper surface of the power signal conversion board 3 is respectively provided with a first power pin slot 31 and a first signal pin slot 32 corresponding to the first power pin 51 and the first signal pin 52, and the lower surface is respectively provided with a second power pin slot 33 and a second signal pin slot 34 corresponding to the second power pin 21 and the second signal pin 22.

[0046] Each second power pin slot 33 on each power signal conversion board 3 is electrically connected to at least one first power pin slot 31, and each second signal pin slot 34 is electrically connected to at least one first signal pin slot 32.

[0047] It should be noted here that the number of the first power pin slots 31 and the first signal pin slots 32 is adaptively set based on the number of COB modules, and the length of the corresponding power signal conversion board 3 is set accordingly. In this embodiment, each second power pin slot 33 is electrically connected to two first power pin slots 31, and each second signal pin slot 34 is electrically connected to two first signal pin slots 32.

[0048] The LED display screen of this embodiment further includes a power supply 9. The power supply 9 is located inside the profile frame 1 and close to the HUB board 2. The power supply 9 is used to supply power to the HUB board 2. The HUB board 2 is also provided with a network interface 10, and the network interface 10 is used for communication between multiple LED box units.

[0049] It should be understood that the above description of the specific embodiments of the present utility model is only for explaining the technical route and features of the present utility model, and its purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly. However, the present utility model is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present utility model should be covered by the protection scope of the present utility model.

Claims

1. An LED cabinet and a display screen, characterized in that, It includes a profile frame (1), a HUB board (2), a power signal conversion board (3), an iron bar (4), and a COB module (5); The profile frame (1) is made of aluminum profile. The upper part of the profile frame (1) has a plurality of grooves (14), and the iron bar (4) is inserted into each of the grooves (14). A plurality of the COB modules (5) are magnetically connected to the iron bar (4) and thus connected to the upper surface of the profile frame (1), and the plurality of the COB modules (5) are arranged in a matrix; The HUB board (2) is fixedly installed inside the profile frame (1) and located at the center of the profile frame (1); A plurality of the power signal conversion boards (3) are arranged between the profile frame (1) and the COB module (5). The top of each power signal conversion board (3) is electrically connected to the COB module (5), and its bottom is electrically connected to the HUB board (2).

2. The LED cabinet and display screen according to claim 1, characterized in that, There is at least one profile frame (1), and its interior presents a hollow skeleton-like structure; COB baffles (6) are respectively arranged at the left and right edges of the profile frame (1), and the profile frame (1) and the COB baffles (6) are connected by connectors. A set of notches (61) are opened on each COB baffle (6), and the notches (61) are used for passing cables. A set of locking openings (11) are respectively arranged at the front and rear edges of the profile frame (1), and adjacent profile frames (1) are connected by inserting a quick lock (7) at the locking openings (11).

3. The LED cabinet and display screen according to claim 2, wherein The quick lock (7) includes a detachable lock body (71) and a lock body fixing member (72) fixed at the locking opening (11). The lock body (71) is inserted into the lock body fixing member (72) to achieve the fixed connection between adjacent profile frames (1).

4. The LED cabinet and display screen according to claim 2, characterized in that, An operation opening (12) is opened on the bottom surface of the profile frame (1) corresponding to the quick lock (7).

5. The LED cabinet and display screen according to claim 1, characterized in that, A HUB board installation position (13) is set on the profile frame (1) corresponding to the position of the HUB board (2). The HUB board (2) is installed at the HUB board installation position (13), and the four corners of the bottom are supported and connected to the HUB board installation position (13) by copper columns (8). The bottom of the copper column (8) is threadedly connected to the HUB board installation position (13), and the top is threadedly connected to the HUB board (2).

6. The LED cabinet and display screen according to claim 1, characterized in that, The back of each COB module (5) has a first power pin (51) and a first signal pin (52), and multiple groups of second power pins (21) and second signal pins (22) are arranged on the upper surface of the HUB board (2); The power signal conversion board (3) is fixed to the upper surface of the profile frame (1) by a connector. A first power pin slot (31) and a first signal pin slot (32) are respectively arranged on the upper surface of the power signal conversion board (3) corresponding to the first power pin (51) and the first signal pin (52), and a second power pin slot (33) and a second signal pin slot (34) are respectively arranged on the lower surface corresponding to the second power pin (21) and the second signal pin (22).

7. The LED cabinet and display screen according to claim 6, characterized in that On each of the power signal conversion boards (3), each of the second power pin slots (33) is correspondingly electrically connected to at least one of the first power pin slots (31), and each of the second signal pin slots (34) is correspondingly electrically connected to at least one of the first signal pin slots (32).

8. The LED cabinet and display screen according to claim 1, characterized in that, It further includes a power supply (9). The power supply (9) is located inside the profile frame (1) and close to the HUB board (2). The power supply (9) is used to supply power to the HUB board (2). A network cable interface (10) is further provided on the HUB board (2), and the network cable interface (10) is used for communication between multiple LED cabinet units.

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