A new connection mode of LED display screen of power control box
By using the electrical plug and socket connection of the power control box in the LED display screen, combined with screw fixing and potting protection, the problem of short circuit caused by exposure to sunlight when connecting the power control box and the LED unit screen is solved, and a more stable electrical connection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAZHI OPTOELECTRONIC CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-10
AI Technical Summary
In existing LED displays, the connection between the power control box and the LED unit screen is susceptible to hardening of the ribbon cable and cracking of the outer skin due to exposure to sunlight, resulting in unstable connectivity.
The four electrical plugs of the power control box are respectively plugged into the electrical sockets of the LED unit screen, and a stable electrical connection is formed by screw connection and potting protection.
It enhances the aging resistance of electrical connections, improving the overall stability and reliability of LED displays.
Smart Images

Figure CN224480793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED display technology, and in particular to an LED display with a novel connection method for a power control box. Background Technology
[0002] An LED display screen consists of multiple LED unit screens forming a display surface. It can display various information such as text, images, graphics, and videos. Its core principle is to create dynamic or static visual effects by adjusting the brightness and color of each LED bead. Due to its high brightness, wide viewing angle, and long lifespan, LED displays are widely used in products such as outdoor advertising screens.
[0003] In current LED displays, the power control box is connected to each LED unit screen one by one using several ribbon cables. The ribbon cables in this method are prone to hardening due to exposure to sunlight, and the outer sheath may crack, leading to short circuits. As a result, the connection is unstable and needs to be improved. Utility Model Content
[0004] The present invention aims to provide an LED display screen with a novel connection method for the power control box, in order to solve the problem mentioned in the background art that the power control box is connected to each LED unit screen one by one by several ribbon cables. In this method, the ribbon cables are easily exposed to sunlight and harden, causing the outer skin to crack and resulting in short circuits, thus leading to unstable connectivity.
[0005] The technical solution adopted by this utility model to solve the technical problem is as follows: An LED display screen with a novel connection method for a power control box includes a bracket, a power control box, and four LED unit screens; the power control box is disposed on the back of the bracket, and four electrical plugs are distributed on both sides of the power control box; the four LED unit screens are assembled on the front of the bracket, and each of the four LED unit screens has an electrical socket on its back; the four electrical plugs distributed on both sides of the power control box are respectively plugged into the electrical sockets on the back of the four LED unit screens.
[0006] In some embodiments, the power control box comprises a main housing and four extended housings distributed on both sides of the main housing. A main circuit board is disposed inside the main housing, and a secondary circuit board is disposed inside each of the four extended housings. The main circuit board inside the main housing is electrically connected to the secondary circuit boards inside the four extended housings. Four electrical plugs are disposed on the outer bottom surface of the four extended housings, and the secondary circuit boards inside the four extended housings are electrically connected to the four electrical plugs.
[0007] In some embodiments, the extended housing is provided with a plurality of first studs, and the back of the LED unit screen is provided with a plurality of second studs. Each first stud is respectively fitted onto each second stud, and each first stud and each second stud are connected by screws.
[0008] In some embodiments, the top surface of each of the extended housings is provided as an opening, and the opening of the top surface of each of the extended housings is filled with adhesive to cover the sub-circuit board inside each of the extended housings.
[0009] In some embodiments, the four LED unit screens are bolted to the bracket.
[0010] In some embodiments, the bracket is integrally injection molded.
[0011] In some embodiments, the support is made of carbon fiber.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, four LED unit screens are assembled on the front of the bracket to form a single LED display screen for displaying images. Four electrical plugs, distributed on both sides of the power control box on the back of the bracket, are respectively plugged into electrical sockets on the back of the four LED unit screens. Through the corresponding connections of each electrical plug and socket, the power control box can control the power supply to the four LED unit screens, thus enabling them to display images and form a four-in-one LED display screen. In existing technologies, where the power control box uses several ribbon cables to connect to each LED unit screen individually, these cables are prone to hardening and cracking due to sun exposure, leading to short circuits and unstable connectivity. In this invention, the power control box is connected to the electrical sockets on the back of the four LED unit screens via four electrical plugs. Compared to the prior art where the power control box is connected to each LED unit screen one by one via several ribbon cables, the electrical plugs and sockets will not crack due to exposure to sunlight, thus having the advantage of aging resistance, thereby enhancing the stability of the connection and ensuring the stability of the entire LED display screen. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of an LED display screen from the rear view, showing a new connection method for the power control box;
[0015] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;
[0016] Figure 3A schematic diagram of the split structure of an LED display screen from the rear view, showing a new connection method for the power control box;
[0017] Figure 4 for Figure 3 Enlarged structural diagram at point B;
[0018] Figure 5 This is a schematic diagram of the LED display screen with the main housing in a split state, which uses a new connection method for the power control box.
[0019] Explanation of reference numerals in the attached figures:
[0020] 100. LED display screen with a new connection method for power control box; 10. Bracket; 20. Power control box; 201. Main housing; 2011. Main circuit board; 202. Extension housing; 2021. Opening; 2022. Secondary circuit board; 2023. Electrical plug; 2024. First stud; 30. LED unit screen; 301. Electrical socket; 302. Second stud. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0023] Please refer to the following: Figures 1 to 5 As shown, Figure 1 A schematic diagram of the overall structure of an LED display screen 100 with a novel connection method for the power control box, viewed from the rear. Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;
[0024] Figure 3 A schematic diagram of the split structure of the LED display screen 100 from the rear view, showing a new connection method for the power control box; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the main housing 201 of the LED display screen 100, which uses a new connection method for the power control box, in a split state.
[0025] This utility model provides the following technical solution: an LED display screen 100 with a novel power control box connection method, including a bracket 10, a power control box 20, and four LED unit screens 30; the power control box 20 is disposed on the back of the bracket 10, and four electrical plugs 2023 are distributed on both sides of the power control box 20; the four LED unit screens 30 are assembled on the front of the bracket 10, and each of the four LED unit screens 30 has an electrical socket 301 on its back; the four electrical plugs 2023 distributed on both sides of the power control box 20 are respectively plugged into the electrical sockets 301 on the back of the four LED unit screens 30.
[0026] In the LED display screen 100 with a novel power control box connection method provided in this embodiment, four LED unit screens 30 are assembled on the front of the bracket 10, so that the four LED unit screens 30 form a whole LED display screen for displaying images. Four electrical plugs 2023 distributed on both sides of the power control box 20 on the back of the bracket 10 are respectively plugged into electrical sockets 301 on the back of the four LED unit screens 30. Through the corresponding connection of each electrical plug 2023 and each electrical socket 301, the power control box 20 can control the power supply to the four LED unit screens 30. When the four LED unit screens 30 are powered on, they realize the display function, forming a four-in-one whole LED display screen. In the prior art, where the power control box uses several ribbon cables to connect to each LED unit screen one by one, the ribbon cables are easily hardened by sunlight exposure, and the outer sheath may crack, leading to short circuits and unstable connectivity. In this embodiment, the power control box 20 is connected to the electrical sockets 301 on the back of the four LED unit screens 30 via four electrical plugs 2023. Compared with the prior art, where the power control box is connected to each LED unit screen one by one by several ribbon cables, the electrical plugs 2023 and electrical sockets 301 will not break due to exposure to sunlight, thus having the advantage of aging resistance, thereby enhancing the stability of the connection and ensuring the stability of the entire LED display screen.
[0027] In some specific examples, the LED unit screens 30 can be configured as six units arranged together on the front of the bracket 10. Each of the six LED unit screens 30 has an electrical socket 301 on its back. The power control box 20 can have six electrical plugs 2023 distributed on both sides, which are then plugged into the electrical sockets 301 on the back of each of the six LED unit screens 30. Alternatively, the LED unit screens 30 can be configured as eight units arranged together on the front of the bracket 10. Each of the eight LED unit screens 30 has an electrical socket 301 on its back, and the power control box 20 can have eight electrical plugs 2023 distributed on both sides, which are then plugged into the electrical sockets 301 on the back of each of the eight LED unit screens 30.
[0028] It is worth noting that, in fact, the embodiments of this application do not limit the number of LED unit screens 30, electrical plugs 2023 and electrical sockets 301.
[0029] In some embodiments, the power control box 20 comprises a main housing 201 and four extension housings 202 distributed on both sides of the main housing 201. A main circuit board 2011 is disposed inside the main housing 201, and a secondary circuit board 2022 is disposed inside each of the four extension housings 202. The main circuit board 2011 inside the main housing 201 is electrically connected to the secondary circuit boards 2022 inside the four extension housings 202. Four electrical plugs 2023 are disposed on the outer bottom surface of the four extension housings 202, and the secondary circuit boards 2022 inside the four extension housings 202 are electrically connected to the four electrical plugs 2023.
[0030] In specific implementation: When the power control box 20 is running, it controls the operation of the sub-circuit boards 2022 in the four extension shells 202 through the main circuit board 2011 in the main shell 201. When the sub-circuit boards 2022 in the four extension shells 202 are running, they respectively transmit power to the electrical sockets 301 on the back of the four LED unit screens 30 through their respective connected electrical plugs 2023, so as to realize the power control box 20 to control the power supply of the four LED unit screens 30.
[0031] In some embodiments, the extended housing 202 is provided with a plurality of first studs 2024, and the back of the LED unit screen 30 is provided with a plurality of second studs 302. Each first stud 2024 is respectively fitted onto each second stud 302, and each first stud 2024 and each second stud 302 are connected by screws.
[0032] In specific implementation: when the electrical plug 2023 is inserted into the electrical socket 301, a plurality of first studs 2024 on the extension housing 202 respectively cover a plurality of second studs 302 on the back of the LED unit screen 30, and each first stud 2024 and each second stud 302 are connected by screws, thereby fixing the extension housing 202 to the back of the LED unit screen 30 with screws to lock the plug-in state between the electrical plug 2023 and the electrical socket 301, preventing the plug-in state between the electrical plug 2023 and the electrical socket 301 from becoming loose, so as to further ensure the stability of the plug-in between the electrical plug 2023 and the electrical socket 301.
[0033] In some embodiments, the top surface of each extension housing 202 is provided as an opening 2021, and the opening 2021 on the top surface of each extension housing 202 is filled with glue to cover the sub-circuit board 2022 inside each extension housing 202.
[0034] In specific implementation: glue is injected into the opening 2021 on the top surface of each extension housing 202. The thickness of the glue injection can be between 0.5 cm and 2 cm, so as to form a glue layer of a certain thickness at the opening 2021 of the extension housing 202 to cover the sub-circuit board 2022 inside the extension housing 202, thereby protecting the sub-circuit board 2022 inside each extension housing 202 from damage caused by rain or sun exposure.
[0035] In some specific examples, instead of using glue to cover the sub-circuit board 2022 inside the extension housing 202 through the opening 2021 on the top surface of the extension housing 202, a cover can be attached to the opening 2021 on the top surface of the extension housing 202 to cover and seal the sub-circuit board 2022 inside the extension housing 202, thereby protecting the sub-circuit board 2022 from damage by rain or sunlight.
[0036] In some embodiments, the four LED unit screens 30 are bolted to the bracket 10.
[0037] In practice: all four LED unit screens 30 are bolted to the bracket 10 so that the four LED unit screens 30 are fixedly installed on the bracket 10 to form a whole LED display screen.
[0038] In some embodiments, the bracket 10 is integrally injection molded.
[0039] In practice: the bracket 10 is integrally molded, which can enhance its structural strength so that the bracket 10 can stably support the power control box 20 and the four LED unit screens 30.
[0040] In some embodiments, the support 10 is made of carbon fiber.
[0041] In specific implementation: the bracket 10 is made of carbon fiber, which has the advantages of high strength and light weight. Therefore, the application of the bracket 10 in the LED display screen 100 of the new connection method of the power control box can increase the strength and reduce the weight, which has practical advantages.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An LED display screen with a novel connection method for a power control box, characterized in that, The device includes a bracket, a power control box, and four LED unit screens. The power control box is located on the back of the bracket, and four electrical plugs are distributed on both sides of the power control box. The four LED unit screens are assembled on the front of the bracket, and each of the four LED unit screens has an electrical socket on its back. The four electrical plugs distributed on both sides of the power control box are respectively plugged into the electrical sockets on the back of the four LED unit screens.
2. The LED display screen with a novel connection method for the power control box according to claim 1, characterized in that, The power control box consists of a main housing and four extended housings distributed on both sides of the main housing. A main circuit board is disposed inside the main housing, and a secondary circuit board is disposed inside each of the four extended housings. The main circuit board inside the main housing is electrically connected to the secondary circuit boards inside the four extended housings. Four electrical plugs are disposed on the outer bottom surface of the four extended housings, and the secondary circuit boards inside the four extended housings are electrically connected to the four electrical plugs.
3. The LED display screen with a novel connection method for the power control box according to claim 2, characterized in that, The extended housing is provided with a plurality of first studs, and the back of the LED unit screen is provided with a plurality of second studs. Each first stud is respectively fitted onto each second stud, and each first stud and each second stud are connected by screws.
4. The LED display screen with a novel connection method for the power control box according to claim 2, characterized in that, The top surface of each of the extended housings is set as an opening, and the opening of the top surface of each of the extended housings is filled with glue to cover the sub-circuit board inside each of the extended housings.
5. The LED display screen with a novel connection method for the power control box according to claim 1, characterized in that, The four LED unit screens are connected to the bracket by bolts.
6. The LED display screen with a novel connection method for the power control box according to claim 1, characterized in that, The bracket is integrally injection molded.
7. The LED display screen with a novel connection method for the power control box according to claim 1, characterized in that, The support structure is made of carbon fiber.