LED soft module
By setting reinforcing ribs and magnets on the soft bottom shell of the LED flexible screen, the problem of decreased magnetic attraction of the flexible screen in a large bending state is solved, achieving a more stable connection and greater curvature, while optimizing the layout of electronic devices.
Patent Information
- Application Number
- CN202422288196.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-19
AI Technical Summary
When existing LED flexible screens are in a large bending state, the magnetic attraction between the soft bottom shell and the mounting base or bracket decreases, resulting in loosening and falling off problems, and the bending stress in the middle of the PCB light board is large.
Strip-shaped reinforcement ribs are set on the soft bottom shell, and magnets are installed on them to increase the magnetic attraction strength; a clearance space is set in the middle of the PCB light board to reduce bending stress; V-grooves and bosses are designed to enhance connection stability.
It effectively improves the magnetic attraction strength of the flexible module in a large bending state, avoids loosening and falling off, increases the bending degree, and makes the layout of electronic devices more compact.
Smart Images
Figure CN223377874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED display, in particular to an LED soft module. Background Art
[0002] LED dot-matrix displays of graphics and Chinese characters are increasingly being used in large shopping malls, bus stations, docks, subway stations, and various service windows. The LED industry has become a rapidly developing emerging industry with a vast market potential and promising prospects. LED displays feature high brightness, low energy consumption, stable performance, and a long lifespan. With the continuous advancement of LED display technology, they are widely used in advertising, exhibitions, and performances. Examples include advertising in indoor and outdoor public spaces, passenger guidance at airports and bus stations, bus announcement systems, securities and bank information displays, restaurant price information displays, variable information boards on highways, sports stadium broadcasts, building lighting, traffic signals, and landscape lighting. Clearly, LED displays have become a key symbol of urban illumination, modernization, and the information society.
[0003] In existing technology, most flexible LED screens are rectangular and typically secured to a mounting base or bracket using magnetic attachment. Traditionally, the perimeter of the flexible bottom shell is magnetically attached to the mounting base or bracket. This approach has a drawback: if the flexible module bends excessively, the magnetic attraction between the bottom shell and the mounting base or bracket decreases in the middle, causing the two to loosen and, in severe cases, fall off. Utility Model Content
[0004] (1) Technical issues to be resolved
[0005] The utility model provides an LED soft module, which aims to solve the problem of loose fit between the soft bottom shell and the mounting base or mounting bracket when the flexible module is in a large bending state, and the problem of large bending stress in the middle position of the PCB lamp board when it is bent.
[0006] (2) Technical solution
[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:
[0008] A flexible LED module includes a soft bottom shell containing at least one strip-shaped reinforcing rib. Magnet mounting positions and magnets located within these positions are evenly distributed along the four edges of the soft bottom shell and along the extension direction of the strip-shaped reinforcing rib. The magnets are used to connect to a mounting base or mounting bracket, and evenly spaced V-shaped grooves are provided between adjacent magnet mounting positions. A flexible PCB light board is also provided, with the back surface of the PCB connected to the front surface of the soft bottom shell and a clearance space provided on the back surface of the PCB corresponding to the strip-shaped reinforcing rib.
[0009] A further technical solution is that the soft bottom shell also includes edge horizontal bars and edge vertical bars, and the pairs of the edge horizontal bars and the pairs of the edge vertical bars enclose a rectangular frame; one or several mutually parallel strip reinforcement ribs are located in the rectangular frame and are all parallel to the edge vertical bars.
[0010] A further technical solution is that the V-shaped grooves are provided on the horizontal edge strips, the vertical edge strips, and the plurality of reinforcing ribs and are located on the back of the soft bottom shell. The V-shaped grooves on the horizontal edge strips extend vertically, while the V-shaped grooves on the vertical edge strips and the reinforcing ribs extend horizontally.
[0011] When the LED screen is a horizontal concave screen, the notch of the V-shaped groove on the edge horizontal bar expands outward, and when the LED screen is a horizontal convex screen, the notch of the V-shaped groove on the edge horizontal bar narrows; when the LED screen is a vertical concave screen, the notch of the V-shaped groove on the edge vertical bar and the reinforcing rib expands outward, and when the LED screen is a vertical convex screen, the notch of the V-shaped groove on the edge vertical bar and the reinforcing rib narrows.
[0012] A further technical solution is that the magnet mounting position is a circular stepped through hole, the large diameter of the stepped through hole is located on the back of the soft bottom shell, the interior of the stepped through hole is used to mount the magnet, and the small diameter of the stepped through hole is located on the front of the soft bottom shell.
[0013] A further technical solution is that adjacent V-shaped grooves are connected by a boss, a groove is provided above the boss, the groove is M-shaped, and the boss can abut against the mounting base or the mounting bracket.
[0014] A further technical solution is that the thickness of the PCB lamp board is 0.3-0.5 mm.
[0015] A further technical solution is that the front of the PCB light board is provided with LED lights arranged in a matrix, and the back is provided with multiple groups of row scanning chips, multiple groups of column scanning chips, multiple capacitors, power plugs and signal plugs, all of which are located in the rectangular area formed by the avoidance space.
[0016] A further technical solution is that the strip reinforcement ribs on the soft bottom shell and the clearance area on the back of the PCB light board have the same width, and the edges of the soft bottom shell and the PCB light board, as well as the strip reinforcement ribs and the clearance area are all glued together.
[0017] (3) Beneficial effects
[0018] The beneficial effects of the utility model are:
[0019] By providing strip-shaped reinforcing ribs on the soft bottom shell and adding magnets to the strip-shaped reinforcing ribs, the magnetic attraction strength in the middle position between the soft bottom shell and the mounting base or mounting bracket can be effectively increased. This ensures that when the flexible module is bent in a large bend, the magnetic attraction strength in the middle position of the soft bottom shell will not decrease due to the excessive bending curvature, thus avoiding the problem of loosening the connection between the mounting base or mounting bracket and the soft bottom shell and causing it to fall off. Secondly, by providing an escape space in the middle position of the PCB light board, the bending stress in the middle position of the PCB light board can be reduced in a large bend state. No electronic components are installed in the escape space, which can make the soft module have a greater curvature and the layout of the electronic devices more compact. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the exploded structure of an LED soft module according to an embodiment;
[0021] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of A in the figure.
[0022] [Description of Reference Numerals]
[0023] 1: Soft bottom shell; 2: PCB light board; 3: Strip reinforcement ribs; 4: Space avoidance; 5: Magnet mounting position; 6: V-shaped groove; 7: Magnet; 8: Concave pattern;
[0024] 11: Horizontal edge bar; 12: Vertical edge bar; 21: Row scan chip; 22: Column scan chip; 23: Capacitor; 24: Power plug; 25: Signal plug. DETAILED DESCRIPTION
[0025] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0027] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0028] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0029] This embodiment provides an LED soft module, such as Figure 1 and Figure 2 As shown, it includes a soft bottom shell 1, which contains at least one strip-shaped reinforcing rib 3 (in this embodiment, there is only one reinforcing rib 3, but two or more may be used). Magnet mounting positions 5 and magnets 7 located in magnet mounting positions 5 are evenly arranged along the four edges of the soft bottom shell 1 and in the direction of extension of the strip-shaped reinforcing rib 3. Magnets 7 are used to connect to the mounting base or mounting bracket. Uniformly arranged V-shaped grooves 6 are provided between adjacent magnet mounting positions 5. A flexible PCB light board 2 is provided. The back of the PCB light board 2 is connected to the front of the soft bottom shell 1, and the back of the PCB light board 2 is provided with a clearance position 4 corresponding to the strip-shaped reinforcing rib 3.
[0030] By providing strip-shaped reinforcing ribs 3 on the soft bottom shell 1 and adding magnets 7 to the strip-shaped reinforcing ribs 3, the magnetic attraction strength in the middle position between the soft bottom shell 1 and the mounting base or mounting bracket is effectively increased. This ensures that when the flexible module is bent in a large curve, the magnetic attraction strength in the middle position of the soft bottom shell 1 will not decrease due to the excessive bending curvature, thus preventing the connection between the mounting base or mounting bracket and the soft bottom shell from loosening and falling off. Secondly, by providing a clearance space in the middle position of the PCB light board 2, the bending stress in the middle position of the PCB board is reduced in the large bending state, and a larger curvature can be achieved.
[0031] Specifically, the soft bottom shell 1 in this embodiment further includes horizontal edge bars 11 and vertical edge bars 12. Pairs of horizontal edge bars 11 and vertical edge bars 12 form a rectangular frame. A single reinforcing rib 3 is located within the rectangular frame and is parallel to the vertical edge bars 12. For clarification, the horizontal edge bars 11 represent the long sides, while the vertical edge bars 12 represent the short sides. The reinforcing rib 3 is located on the long sides and parallel to the short sides, which provides better support and reinforcement.
[0032] In this embodiment, the V-shaped grooves 6 are provided on the horizontal edge bars 11, the vertical edge bars 12, and the reinforcing ribs 3 and are located on the back of the soft bottom shell 1. The V-shaped grooves 6 on the horizontal edge bars 11 extend vertically, while the V-shaped grooves 6 on the vertical edge bars 12 and the reinforcing ribs extend horizontally. Specific practical scenarios are as follows:
[0033] When the LED screen is a horizontal concave screen (i.e., when the viewer is facing the LED screen, the distance from the center of the LED screen is greater than the distance from the left and right edges of the screen, and the upper and lower edges of the screen are curved), the notches of the V-shaped grooves 6 on the edge horizontal bars 11 expand outwards; when the LED screen is a horizontal convex screen (i.e., when the viewer is facing the LED screen, the distance from the center of the LED screen is less than the distance from the left and right edges of the screen, and the upper and lower edges of the screen are curved), the notches of the V-shaped grooves 6 on the edge horizontal bars 11 narrow. When the LED screen is a vertical concave screen (i.e., when the viewer is facing the LED screen, the distance from the center of the LED screen is greater than the distance from the left and right edges of the screen, and the left and right edges of the screen are curved), the notches of the V-shaped grooves 6 on the edge vertical bars 12 and the reinforcing ribs expand outwards; when the LED screen is a vertical convex screen (i.e., when the viewer is facing the LED screen, the distance from the center of the LED screen is less than the distance from the left and right edges of the screen, and the left and right edges of the screen are curved), the notches of the V-shaped grooves 6 on the edge vertical bars 12 and the reinforcing ribs narrow.
[0034] The soft bottom shell 1 and the strip-shaped reinforcement ribs 3 are made of black silicone with a hardness of 20 on the Shore A scale. The black silicone is flexible and easier to bend. The V-grooves 6 further increase the flexibility of the soft bottom shell 1, allowing it to achieve greater bending and deformation capabilities.
[0035] In this embodiment, the magnet mounting position 5 is a circular stepped through hole. The large diameter portion of the stepped through hole is located on the back of the soft bottom shell 1, and the magnet 7 is mounted therein. The small diameter portion of the stepped through hole is located on the front of the soft bottom shell 1. This arrangement facilitates inserting a tool from the front of the soft bottom shell 1 during later disassembly, allowing the magnet 7 on the back of the soft bottom shell 1 to be efficiently and conveniently removed.
[0036] In this embodiment, adjacent V-grooves 6 are connected by a boss, and a groove 8 is provided above the boss. The groove 8 is M-shaped and is used to increase the friction between the mounting base or the mounting bracket. For LED screens installed vertically on the ground, it serves as a supplement to the magnetic attraction to prevent the LED module from slipping off the mounting base or the mounting bracket.
[0037] In this embodiment, the thickness of the PCB light board 2 is 0.3mm, with an optional range of 0.3-0.5mm. The front of the PCB light board 2 features a matrix of LEDs, while the back is equipped with multiple rows of scanning chips 21, multiple columns of scanning chips 22, multiple capacitors 23, a power plug 24, and a signal plug 25, all located within the rectangular area defined by the clearing 4. The absence of any electronic components within the clearing 4 allows for greater flexibility in the soft module and a more compact layout of the electronic components.
[0038] In this embodiment, the reinforcing ribs 3 on the soft bottom case 1 and the backside clearances on the PCB light board 2 are of equal width. The edges of the soft bottom case 1 and the PCB light board 2, as well as the ribs 3 and the backside clearances 4, are all glued together. The glue must be temperature-resistant between -40°C and 80°C. This is because the LED light generates heat over time, and to prevent debonding, a heat-resistant adhesive is required.
[0039] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention shall be included within the scope of protection of the present invention.
Claims
1. An LED soft module, characterized in that: include: A soft bottom shell (1), the soft bottom shell (1) comprising at least one strip-shaped reinforcing rib (3), magnet mounting positions (5) and magnets (7) located in the magnet mounting positions (5) being evenly arranged along the four edges of the soft bottom shell (1) and in the extending direction of the strip-shaped reinforcing rib (3), the magnets (7) being used to connect to a mounting base or a mounting bracket, and evenly arranged V-shaped grooves (6) being provided between adjacent magnet mounting positions (5); A flexible PCB light board (2), wherein the back surface of the PCB light board (2) is connected to the front surface of the soft bottom shell (1), and a clearance position (4) is provided on the back surface of the PCB light board (2) corresponding to the strip-shaped reinforcing rib (3).
2. The LED soft module according to claim 1, wherein: The soft bottom shell (1) further comprises edge horizontal bars (11) and edge vertical bars (12), wherein the paired edge horizontal bars (11) and the paired edge vertical bars (12) enclose a rectangular frame; one or more mutually parallel strip-shaped reinforcing ribs (3) are located in the rectangular frame and are all parallel to the edge vertical bars (12).
3. The LED soft module according to claim 2, wherein: The V-shaped groove (6) is provided on the edge horizontal bar (11), the edge vertical bar (12) and a plurality of the reinforcing ribs (3) and is located on the back side of the soft bottom shell (1); The notch of the V-shaped groove (6) located on the edge horizontal bar (11) extends in a vertical direction, and the notch of the V-shaped groove (6) located on the edge vertical bar (12) and the strip-shaped reinforcing rib extends in a horizontal direction; When the LED screen is a horizontal concave screen, the notch of the V-shaped groove (6) on the edge horizontal bar (11) expands outwards, and when the LED screen is a horizontal convex screen, the notch of the V-shaped groove (6) on the edge horizontal bar (11) narrows; When the LED screen is a vertical concave screen, the notches of the edge vertical bars (12) and the V-shaped grooves (6) on the reinforcing ribs expand outwards; when the LED screen is a vertical convex screen, the notches of the edge vertical bars (12) and the V-shaped grooves (6) on the reinforcing ribs narrow.
4. The LED soft module according to claim 1, wherein: The magnet mounting position (5) is a circular stepped through hole, the large diameter of the stepped through hole is located on the back of the soft bottom shell (1), the interior of the stepped through hole is used to mount the magnet (7), and the small diameter of the stepped through hole is located on the front of the soft bottom shell (1).
5. The LED soft module according to claim 1, wherein: Adjacent V-shaped grooves (6) are connected via a boss, a groove (8) is provided above the boss, the groove (8) is M-shaped, and the boss can abut against the mounting base or the mounting bracket.
6. The LED soft module according to claim 1, wherein: The thickness of the PCB light board (2) is 0.3-0.5 mm.
7. The LED soft module according to claim 1, wherein: The front of the PCB light board (2) is provided with LED lights arranged in a matrix, and the back thereof is provided with multiple groups of row scanning chips (21), multiple groups of column scanning chips (22), multiple capacitors (23), power plugs (24) and signal plugs (25), all of which are located in a rectangular area formed by the avoidance position (4).
8. The LED soft module according to claim 1, wherein: The strip-shaped reinforcing ribs (3) on the soft bottom shell (1) and the avoidance space on the back of the PCB light board (2) have the same width, and the four edges of the soft bottom shell (1) and the four edges of the PCB light board (2), as well as the strip-shaped reinforcing ribs (3) and the avoidance space (4) are all connected by adhesive.