An acoustic-transparent module mounting frame structure
By installing stop components at the splicing seams of the LED display control box and optimizing the frame structure, the problems of signal theft and viewing interference caused by gaps in the control box were solved, achieving higher digital security and viewing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING LUOPU TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-21
Smart Images
Figure CN224538487U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of LED display installation technology, and more specifically, relates to a sound-permeable module installation frame structure. Background Technology
[0002] As film copyright piracy becomes increasingly diversified, preventing piracy, maintaining the normal order of the film market, and promoting the healthy development of the film industry are issues that film practitioners need to continuously focus on and improve. In the traditional commercial cinema industry, cinemas typically use projection equipment and screens to display images. However, with technological advancements, LED screen technology has gradually entered the market due to its higher brightness, better clarity, and lower requirements for ambient light.
[0003] LED displays are generally composed of multiple LED frames spliced together. Each LED frame typically includes a main frame and a control box assembly mounted on the main frame. The control box assembly usually includes a control box and internal components such as a power supply, control board, wires, and connectors, which supply power to the LED frame and transmit control signals. Therefore, information theft prevention within the control box, as a crucial component of LED screen anti-theft technology, has always been a focus of the industry.
[0004] A search revealed that patent CN222672140U discloses a sound-permeable LED cabinet, screen, and theater with anti-piracy functions. In this application, a lockable back cover is installed on the HUB board at the back of the cabinet. Sensors detect the state of the locking mechanism to determine whether the HUB board can receive video signals, increasing the security of video resources and preventing leakage from the LED cabinet.
[0005] For example, patent CN211928969U discloses an anti-piracy LED cabinet and display screen. This application also uses a combination of mechanical lock and sensors to achieve anti-theft for the LED cabinet.
[0006] For example, patent CN217386607U discloses a display module and a display screen. This application uses a multi-layered anti-theft design, including an anti-theft lock and microswitches, to prevent the theft of data information inside the enclosure.
[0007] As can be seen, existing solutions for information theft prevention within control boxes include various approaches. Generally, a combination of mechanical locks, sensors, or microswitches is used. While this structure effectively prevents unauthorized opening of the control box, achieving good anti-theft results, there is still room for improvement. This is because control boxes typically consist of a body and a cover. After the control box is closed and locked, a gap inevitably exists between the body and the cover, which poses a significant risk to signal security within the control box. Utility Model Content
[0008] 1. The problem to be solved In view of at least some of the problems existing in the prior art, this utility model proposes a sound-transparent module mounting frame structure, the purpose of which is to solve the problem that the digital signals inside the control box are easily stolen due to the gap between the box body and the cover after the existing control box is closed.
[0009] 2. Technical Solution To solve the above problems, the technical solution adopted by this utility model is as follows: This utility model discloses a sound-permeable module mounting frame structure, including a frame and a control box disposed within the frame; the control box includes a box body and a cover that can be closed to each other. The control box is equipped with a stop component inside, which is located on the path extending from the splice seam into the control box, and is used to prevent external objects from entering the control box through the splice seam; wherein, the splice seam is formed by the box body and the cover body being closed together.
[0010] In some embodiments, the stop component is disposed on the inner sidewall of the box body, and includes a connecting section extending integrally into the box body, and a first stop section connected to the connecting section and extending integrally towards the cover body; or, The stop component is disposed on the inner side wall of the cover, and includes a connecting section extending integrally into the box body, and a first stop section connected to the connecting section and extending integrally into the box body.
[0011] In some embodiments, the free end of the first stop segment is connected to a second stop segment, the second stop segment extending in the opposite direction to the connecting segment.
[0012] In some embodiments, the stop component is integrally formed with the box body or cover body.
[0013] In some embodiments, both ends of the box are connected to the corresponding inner walls of the frame via connectors located inside the box.
[0014] In some embodiments, the box body is provided with a plurality of winding portions, which are arranged close to the inner peripheral wall of the box body and along its length, dividing the inner cavity of the box body into two spaces; wherein, A first space is formed between the winding section and the inner peripheral wall of the box for wiring; a second space is formed between several winding sections for installing the control board.
[0015] In some embodiments, the winding portion includes interconnected horizontal and vertical sections; wherein, The vertical segment includes a first segment, a second segment, and an inclined segment connecting the first segment and the second segment; and the distance between the first segment and the inner peripheral wall of the box is greater than the distance between the second segment and the inner peripheral wall of the box.
[0016] In some embodiments, the interior of the frame is divided into two parts by a control box, and each part is equipped with a wiring box; the wiring boxes and the control box form a crisscrossing support structure within the frame and are interconnected.
[0017] In some embodiments, the frame is further provided with a protective connector, one end of which is connected to the wiring box and the other end extends to the outside of the frame.
[0018] In some embodiments, the frame is formed by a plurality of side panels, each side panel comprising a first part and a second part that are connected to each other; wherein the height of the second part is less than the height of the first part; and the front surfaces of the first part and the second part together form a mounting surface for assembling an LED display module. After assembly, due to the height difference between the first part and the second part, at least a first buffer area is formed between the first inner wall of the side plate and the sound-transmitting area on the LED display module.
[0019] In some embodiments, the wiring box is located on the back of the second part and is spaced apart from the LED display module.
[0020] In some embodiments, protective pads are provided at the corners of the frame; the protective pads are generally L-shaped, including a main body and a mounting portion protruding from the inner wall of the main body; wherein, A clearance surface is formed between the mounting part and the main body; a clearance groove is provided at the corner of the mounting part.
[0021] 3. Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The sound-transparent module mounting frame structure of this utility model can effectively prevent external objects from entering the control box through the splicing seam formed after the box and cover are closed by setting the stop component, thereby reducing the risk of data theft; at the same time, the cable box can protect the cables, which also helps to improve the digital security inside the control box. In addition, the stop component can also shield the flashing signals inside the control box to prevent interference with the viewing effect.
[0022] (2) The sound-transparent module installation frame structure of this utility model can form an L-shaped or U-shaped stop space at the exit of the splice seam by optimizing the specific structure of the stop component, which can further reduce the risk of external objects entering the control box through the splice seam and stealing digital signals.
[0023] (3) The sound-transparent module installation frame structure of this utility model can wrap and protect the cables between adjacent frames by setting protective joints to prevent the cables from being exposed and thus the signal being stolen.
[0024] (4) The sound-permeable module mounting frame structure of this utility model has several winding parts in the box, which can divide the inner cavity of the box into two relatively independent spaces for wiring and setting up the control board respectively; this can effectively avoid the cable from blocking the electrical components on the control board, thus facilitating the subsequent maintenance operation of the electrical components. Attached Figure Description
[0025] Figure 1 This is a structural diagram of a sound-permeable module mounting frame structure according to the present invention; Figure 2 This is a schematic diagram of the control box in this utility model; Figure 3 This is a cross-sectional view of the control box after it has been closed in this utility model; Figure 4 This is a partial structural diagram of the box body in this utility model; Figure 5 for Figure 4 A magnified view of a portion of point A in the middle; Figure 6 for Figure 4 Sectional view of BB; Figure 7 This is another structural schematic diagram of the stop component of this utility model; Figure 8 This is a schematic diagram of the structure of the protective joint in this utility model; Figure 9 This is a schematic diagram of the structure of the protective pad in this utility model; Figure 10This is a schematic diagram of the assembly between the side plate and the LED display module in this utility model; Figure 11 This is a schematic diagram of the LED display module in this utility model; Figure 12 This is a schematic diagram comparing the sound wave shielding of the side panel in this embodiment with that of an existing side panel.
[0026] In the diagram: 100, frame; 110, side panel; 111, first part; 1111, first inner wall; 112, second part; 1121, second inner wall; 200. Control box; 210. Box body; 220. Cover; 230. Stop component; 231. Connecting section; 232. First stop section; 233. Second stop section; 240. Joint; 250. Safety lock; 260. Winding section; 261. Horizontal section; 262. Vertical section; 2621. First section; 2622. Second section; 2623. Inclined section; 270. Control panel; 300. Cable management box; 400. Protective connector; 500. Connector; 600. LED display module; 610. Sound-permeable area; 611. Sound-permeable hole; 620. Installation area; 630. Reserved area; 700, Protective pad; 710, Body; 720, Mounting part; 721, Clearance groove; 730, Clearance surface. Detailed Implementation
[0027] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] The present invention will be further described below with reference to specific embodiments.
[0030] like Figure 1 As shown, a sound-permeable module mounting frame structure in this embodiment mainly includes a frame 100, a control box 200, and a wiring box 300. The frame 100 is a rectangular frame structure formed by four side plates 110, and the frame structure has a cavity with openings on both sides.
[0031] The control box 200 is housed within the cavity of the frame 100, and can house the control board 270, power supply, and various cables. The control box 200 divides the cavity of the frame 100 into multiple sections, each of which contains a cable management box 300. The cable management box 300 primarily provides a passageway for connecting cables and protects those cables.
[0032] Of course, the number of control box 200 and wiring boxes 300 in each section can be one or more, depending on the actual needs. In this embodiment, we take one control box 200 in the frame 100 and two wiring boxes 300 in each of the two sides as an example.
[0033] Specifically, in this embodiment, the control box 200 is located in the middle area of the frame 100, and the wiring boxes 300 are respectively located near the upper and lower ends of the frame 100 to facilitate wiring to both sides. At the same time, the wiring boxes 300 are distributed perpendicular to the control box 200. In this way, the wiring boxes 300 and the control box 200 form a crisscrossing support structure within the frame 100 and are interconnected, thereby helping to ensure the overall structural strength of the frame 100.
[0034] like Figure 2 , Figure 3 As shown, the control box 200 includes a box body 210 and a cover 220 that can be closed to each other. Preferably, the box body 210 and the cover 220 are rotatably connected, and a safety lock 250 is provided between them. Locking the box body 210 and the cover 220 with the safety lock 250 protects the internal digital signals from theft. It is worth noting that the aforementioned rotatable connection and the safety lock 250 can employ existing technology, and will not be described in detail here.
[0035] In this embodiment, the safety lock 250 reduces the risk of signal leakage caused by unauthorized opening of the control box 200. However, in actual operation, after the control box 200 is closed, the contact surfaces of the box body 210 and the cover 220 cannot be completely sealed, leaving a tiny seam 240. Although this seam 240 is small, it is still possible for thinner metal sheets to penetrate and enter the control box 200, stealing internal digital signals. Simultaneously, signal flickering inside the control box 200 (such as indicator lights, high-frequency signals from the circuit board, etc.) will also be emitted through this seam 240, forming visible light spots or flickering, interfering with the viewing experience.
[0036] Therefore, in this embodiment, a stop component 230 is provided at the exit of the splice seam 240 to block external objects from entering the splice seam 240, so as to prevent them from directly entering the interior of the control box 200.
[0037] Specifically, refer to Figure 6 As shown, the stop component 230 includes a connecting section 231 and a first stop section 232 that are connected to each other. The connecting section 231 is disposed on the inner sidewall of the housing 210 and extends inwards into the housing 210. The first stop section 232 is perpendicular to the connecting section 231 and extends towards the cover 220, so that the entire stop component 230 forms an "L"-shaped stop space, effectively reducing the risk of external objects directly entering the control box 200. Simultaneously, it can also shield the signal flickering inside the control box 200, preventing interference with the viewing experience.
[0038] Of course, the stop component 230 can also be provided on the cover 220. In this case, the connecting section 231 is provided on the inner side wall of the cover 220 and extends toward the interior of the cover 220. The first stop section 232 is also provided perpendicular to the connecting section 231, but extends toward the box 210 as a whole.
[0039] like Figure 7 As shown, as another structural form of the stop component 230, a second stop segment 233 is added to the above structure. One end of the second stop segment 233 is connected to the first stop segment 232, and the other end extends in the opposite direction to the connecting segment 231, so that the connecting segment 231, the first stop segment 232 and the second stop segment 233 form a "U"-shaped stop space, so as to further reduce the possibility of external objects entering the control box 200 through the splice seam 240.
[0040] Furthermore, the aforementioned stop component 230 is integrally formed with the box body 210 / cover body 220.
[0041] In some implementations, a microswitch (not shown in the figure) may be provided between the housing 210 and the cover 220. When the control box 200 is in the closed state, the microswitch can be pressed down by the housing 210 or the cover 220. When the control box 200 is opened, the microswitch is triggered due to the loss of pressure; at this time, data leakage can be prevented by forcibly interrupting signal transmission or issuing an alarm through the control system.
[0042] like Figure 4 , Figure 6 As shown, in some embodiments, the two ends of the box 210 are respectively fixed to the opposite inner walls of the frame 100, and a wire-passing hole (not shown in the figure) is provided at the contact point between the box 210 and the frame 100, so that the wire-passing hole can be blocked after the two adjacent frames are spliced together. This design can also reduce the risk of external objects entering the control box 200 through the wire-passing hole.
[0043] Specifically, the two ends of the housing 210 are respectively disposed on the inner side of the corresponding side plate 110 via connectors 500. The connectors 500 can be made of existing technology, such as bolts, screws, etc.
[0044] Preferably, the connector 500 is located inside the housing 210. This protects the connector 500 when the control box 200 is locked, preventing thieves from disassembling the control box 200 from the outside and thus stealing the signal. Similarly, the connector 500 between the wiring box 300 and the housing 210 can also be located inside the housing 210.
[0045] Furthermore, the aforementioned wiring box 300, box body 210, and overall frame 100 can all be made of profile structure. On the one hand, profile structure has good structural strength and heat dissipation effect; on the other hand, profile structure can reserve some assembly holes to facilitate connection with connector 500.
[0046] This embodiment of a sound-transparent module mounting frame structure typically requires multiple frames to be spliced together to form a large display screen. After splicing, a certain gap will inevitably exist between two adjacent frames 100. At this time, the cable passing through the two frames 100 will be exposed in the gap, thereby increasing the risk of signal loss. To address this, in this embodiment, a protective connector 400 is provided on the side of the frame 100 to protect the cable at the splicing point.
[0047] Specifically, refer to Figure 1 , Figure 8 As shown, a protective connector 400 is provided on the side plate 110. One end of the protective connector 400 is connected to the wiring box 300, and the other end extends to the outside of the side plate 110 for connection with the wiring box 300 in the adjacent frame 100.
[0048] In this embodiment, by setting the protective connector 400, the cable passing through the cable tray 300 in one frame 100 can enter the cable tray 300 in the adjacent frame 100 through the protective connector 400, so as to prevent the cable from being directly exposed at the connection between the two frames 100.
[0049] This embodiment of a sound-permeable module mounting frame structure, through the hinged design between the housing 210 and the cover 220, facilitates the opening of the housing 200, enabling subsequent maintenance and repair. However, since a large number of cables are distributed inside the housing 210, these cables can obstruct various electrical components located on the control board 270 within the housing 210, thus hindering subsequent maintenance and repair operations. Therefore, in this embodiment, several winding sections 260 are provided inside the housing 210 to organize the cables and minimize their obstruction of electrical components.
[0050] Specifically, such as Figures 4-6 As shown, a plurality of winding sections 260 are provided inside the housing 210. These winding sections 260 are arranged close to the inner peripheral wall of the housing 210 and along its length, dividing the inner cavity of the housing 210 into two spaces. The first space is formed between the winding sections 260 and the inner peripheral wall of the housing 210, primarily for wiring. The second space is formed by the winding sections 260 together, within which the control board 270 can be installed.
[0051] In this embodiment, the winding section 260 divides the inner cavity of the housing 210 into two relatively independent spaces, one for wiring and the other for housing the control board 270. This design effectively prevents the cables from obstructing the electrical components on the control board 270, thus facilitating subsequent maintenance of the electrical components.
[0052] In some embodiments, the winding section 260 is generally L-shaped, comprising a horizontal segment 261 and a vertical segment 262 connected to each other. The horizontal segment 261 connects to the bottom of the housing 210; the vertical segment 262 is located at one end of the horizontal segment 261 near the inner peripheral wall of the housing 210, serving to stop the cable. It should be noted that the horizontal segment 261 and vertical segment 262 here do not necessarily mean geometrically straight segments, but rather that they extend horizontally / vertically overall. A certain degree of tilt or even bending is permissible.
[0053] Furthermore, the vertical segment 262 includes a first segment 2621, a second segment 2622, and an inclined segment 2623 connecting the first segment 2621 and the second segment 2622, and the distance between the first segment 2621 and the inner peripheral wall of the box 210 is greater than the distance between the second segment 2622 and the inner peripheral wall of the box 210. In other words, the width of the first space at the entrance is greater than its bottom width. Here, width refers to the distance between the vertical segment 262 and the inner peripheral wall of the box 210.
[0054] In this embodiment, the width of the entrance to the first space is increased. This is because the stop component 230 extends towards the winding part 260, which may obstruct the entrance to the first space, making the entrance smaller and hindering the proper insertion of the cable. Simultaneously, when the cable enters the first space from the entrance and moves downwards, the narrow bottom width of the first space provides a certain binding force, preventing problems such as tangling and knotting caused by excessive cable slack.
[0055] In this embodiment, a sound-permeable module installation frame structure is provided with protective pads 700 at the four corners of the frame 100 to prevent bumps and damage during placement and transportation.
[0056] Specifically, refer to Figure 9As shown, the protective pad 700 has an overall L-shaped structure, including a main body 710 and a mounting portion 720 protruding from the inner wall of the main body 710. A clearance surface 730 is formed between the mounting portion 720 and the main body 710; a clearance groove 721 is provided at the corner of the mounting portion 720. Additionally, mounting holes are provided on the two folded edges of the protective pad 700.
[0057] During assembly, the protective pad 700 is installed at the corner of the frame 100 using the connector 500. At this time, the corner of the frame 100 is exactly located in the clearance groove 721. Simultaneously, the two outer side walls at the corner are located within the areas of the corresponding mounting parts 720. In other words, after the protective pad 700 is assembled, it not only completely covers the corner of the frame 100, but also extends from both sides of its body 710 outwards from the front and back of the frame 100, respectively.
[0058] The acoustic module mounting frame of this embodiment optimizes the structure of the protective pad 700 so that when the frames 100 are stacked, a certain distance can be maintained between two adjacent frames 100 in both the horizontal and vertical directions, thereby providing comprehensive protection for the outer perimeter of the frame 100.
[0059] This embodiment provides a sound-permeable module mounting frame structure. The frame 100 is a hollow rectangular structure enclosed by four side plates 110. In use, several LED display modules 600 are typically laid on the front of the frame 100 to form a complete display screen, and the front of the side plates 110 can serve as the mounting base for the LED display modules 600.
[0060] In other words, a portion of the LED display module 600 will be blocked by the side panel 110, while the sound source typically enters from the back of the frame 100. In this case, the presence of the side panel 110 will inevitably obstruct the sound waves to some extent, which can easily lead to sound attenuation and affect the final sound transmission effect.
[0061] As is well known, sound propagation encounters obstacles and undergoes phenomena such as reflection, transmission, and diffraction. Generally speaking, the thicker the obstacle, the longer the sound travels within it, and the more sound energy is absorbed and reflected. In other words, the thicker the obstacle, the less sound energy passes through, resulting in greater sound attenuation.
[0062] refer to Figure 1 , Figure 10As shown, to reduce the obstruction of sound waves by the side plate 110, in this embodiment, the side plate 110 includes a first part 111 and a second part 112 that are connected to each other, and the height H2 of the second part 112 is less than the height H1 of the first part 111. At this time, the front of the second part 112 and the first part 111 together form a mounting surface for assembly with the LED display module 600.
[0063] In other words, by designing the side panel 110 with varying heights, the inner wall of the side panel 110 can be divided into two parts in the height direction. For ease of description below, the inner wall portion corresponding to the first part 111 will be referred to as the first inner wall 1111; the inner wall portion corresponding to the second part 112 will be referred to as the second inner wall 1121. Meanwhile, the side of the frame 100 facing the audience will be defined as the front (i.e.,...). Figure 10 The side seen from the F1 side, facing away from the audience, is defined as the back (i.e., the side facing away from the audience). Figure 10 (The view as seen from the F2 side).
[0064] refer to Figure 11 As shown, the LED display module 600 generally has a sound-permeable area 610 and a mounting area 620. The sound-permeable area 610 is located in the middle of the LED display module 600, and multiple sound-permeable holes 611 are formed within this area to ensure good sound transmission. The sound-permeable holes 611 can be square, round, flared, or oblong, or a combination of one or more of these shapes, and are not specifically limited here. The mounting area 620 is located at the edge of the LED display module 600 and is mainly used for assembly and fixation with the side panel 110.
[0065] During assembly, the LED display module 600 covers the front of the mounting surface via the mounting area 620, and the two are connected by fasteners (not shown in the figure), with the fasteners located on the back of the second part 112. The fasteners can be made using existing technology, such as fastening screws. Of course, mounting holes for fastening screws need to be made at the corresponding positions of the second part 112 and the mounting area 620. Since the fastening screws pass through from the back of the second part 112, through holes can be made on the second part 112, while blind holes can be made in the mounting area 620. In this way, the fasteners will not damage the front of the LED display module 600, thus ensuring the aesthetic appearance of the front of the LED display module 600.
[0066] In this embodiment, the side plate 110 is divided into two parts, one high and one low. Since the height H2 of the second part 112 is much smaller than the height H1 of the first part 111, the back of the second part 112 is farther from the sound source than the back of the first part 111. This gives the sound waves more opportunities to diffuse and diffract during propagation. In addition, the second part 112 itself has a smaller height, making it easier for the sound waves to penetrate. This results in a relatively weaker blocking effect, which is beneficial to the final sound transmission effect.
[0067] Furthermore, in traditional designs, to increase the opening area of the sound-permeable hole 611 and improve sound transmission, it is generally desirable for the sound-permeable hole 611 to be as close to the edge as possible. This means that the sound-permeable hole 611 is also closer to the inner wall of the side panel 110. This presents the following drawbacks: First, the sound reflected from the inner wall of the side panel 110 is strong, easily producing echoes that interfere with the original sound, thus affecting sound clarity. Especially in cinemas with high sound quality requirements, echoes can destroy the layering and stereoscopic effect of the sound, thus affecting the audience's audiovisual experience. Second, strong reflections at close range may cause the reflected sound to be too close to the original sound in time, which also affects sound quality.
[0068] In this embodiment, no sound-permeable holes 611 are formed in the area where the LED display module 600 overlaps with the side plate 110. Since the height of the second part 112 is relatively small, the reflection of sound waves from the inner wall of the side plate 110 is mainly concentrated on the first inner wall 1111. Therefore, the presence of the second part 112 effectively forms a first buffer area A1 between the first inner wall 1111 and the sound-permeable area 610. The existence of this first buffer area A1 naturally creates a certain distance between the first inner wall 1111 and the sound-permeable area 610, effectively avoiding a series of adverse effects caused by their close proximity.
[0069] To further illustrate the impact of the height-difference design of the side panel 110 on sound transmission, the side panel 110 of this embodiment will be compared with that of a conventional one. Specifically, refer to... Figure 12 As shown, traditional side panels 110 typically employ a uniform height design. In this case, sound propagating from certain angles is directly reflected by the back of the side panel 110, preventing it from entering the sound-permeable hole 611, which inevitably reduces sound transmission efficiency. However, in this embodiment, a notch is formed in the side panel 110, which constitutes the aforementioned first buffer area A1. In this case, sound propagating from certain angles is not directly reflected back by the back of the side panel 110, but instead passes through the first buffer area A1 to reach the first inner wall 1111, and then is reflected by the first inner wall 1111 into the sound-permeable hole 611. This improvement in sound transmission efficiency is significantly beneficial.
[0070] It is worth mentioning that the core of this embodiment lies in reducing the sound source blocking effect by lowering the local height of the side plate 110, given a fixed size of the side plate 110. In other words, the second part 112 is actually a part of the side plate 110. However, the conventional method of adding a second part 112 to the side plate 110 itself is not within the scope of this application.
[0071] Of course, it is undeniable that the presence of the second inner wall 1121 will also cause reflection interference of sound waves. However, the surface area of the second inner wall 1121 is much smaller than the surface area of the entire inner wall of the side plate 110. Therefore, compared with the side plate 110, the reflection attenuation of sound waves by the second inner wall 1121 is greatly reduced.
[0072] To further reduce the attenuation of sound waves reflected by the second inner wall 1121, a reserved area 630 can be left between the installation area 620 and the sound-transmitting area 610, forming a second buffer area A2 between the sound-transmitting area 610 and the second inner wall 1121. The width L1 of the second buffer area A2 is greater than the hole spacing L2 of the sound-transmitting holes 611. In fact, the width of the second buffer area A2 is the same as the width of the reserved area 630.
[0073] At the same time, it's easy to understand that the presence of the wiring box 300 will also obstruct the sound-permeable hole 611 on the LED display module 600, thus affecting the sound transmission effect of the LED display module 600. Therefore, the wiring box 300 can be placed on the back of the second part 112, with a certain gap. In this way, although the wiring box 300 will still obstruct the sound-permeable hole 611, it will not completely block it.
[0074] In some embodiments, to reduce the area obstructed by the wiring box 300 on the sound-permeable hole 611, the wiring box 300 may adopt a flat design, with its narrower surface facing the sound-permeable hole 611. Additionally, the wiring box 300 is preferably located at the junction of two LED display modules 600.
[0075] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A sound-permeable module mounting frame structure, comprising a frame (100) and a control box (200) disposed within the frame (100); the control box (200) comprises a box body (210) and a cover body (220) that can be covered by each other. Its features are: The control box (200) is provided with a stop component (230) inside. The stop component (230) is located on the path extending from the splice seam (240) into the control box (200) and is used to prevent external objects from entering the control box (200) through the splice seam (240). The splice seam (240) is formed by the box body (210) and the cover body (220) after they are closed.
2. The acoustically transparent module mounting frame structure according to claim 1, characterized in that: The stop component (230) is disposed on the inner sidewall of the box body (210), and includes a connecting section (231) extending integrally into the box body (210), and a first stop section (232) connected to the connecting section (231) and extending integrally toward the cover body (220); or, The stop component (230) is disposed on the inner side wall of the cover (220), and includes a connecting section (231) extending integrally into the box (210), and a first stop section (232) connected to the connecting section (231) and extending integrally into the box (210).
3. The acoustically transparent module mounting frame structure according to claim 2, characterized in that: The free end of the first stop segment (232) is connected to a second stop segment (233), and the extension direction of the second stop segment (233) is opposite to that of the connecting segment (231).
4. The acoustically transparent module mounting frame structure according to claim 3, characterized in that: The stop component (230) is integrally formed with the box body (210) or the cover body (220).
5. A sound-permeable module mounting frame structure according to any one of claims 1-4, characterized in that: The two ends of the box (210) are respectively connected to the corresponding inner walls of the frame (100) through connectors (500), and the connectors (500) are located inside the box (210).
6. The acoustically transparent module mounting frame structure according to claim 5, characterized in that: The box body (210) is provided with a plurality of winding portions (260), which are arranged close to the inner peripheral wall of the box body (210) and along its length, dividing the inner cavity of the box body (210) into two spaces; wherein, A first space is formed between the winding section (260) and the inner peripheral wall of the box (210) for wiring; a second space is formed between the winding sections (260) for installing the control board (270).
7. The acoustically transparent module mounting frame structure according to claim 6, characterized in that: The winding section (260) includes a horizontal section (261) and a vertical section (262) connected to each other; wherein, The vertical segment (262) includes a first segment (2621), a second segment (2622), and an inclined segment (2623) connecting the first segment (2621) and the second segment (2622); and the distance between the first segment (2621) and the inner peripheral wall of the box (210) is greater than the distance between the second segment (2622) and the inner peripheral wall of the box (210).
8. The acoustically transparent module mounting frame structure according to claim 5, characterized in that: The interior of the frame (100) is divided into two parts by the control box (200), and each part is provided with a wiring box (300); the wiring box (300) and the control box (200) form a cross-shaped support structure within the frame (100) and are interconnected.
9. The acoustically transparent module mounting frame structure according to claim 8, characterized in that: The frame (100) is also provided with a protective connector (400), one end of which is connected to the wiring box (300), and the other end extends to the outside of the frame (100).
10. The acoustically transparent module mounting frame structure according to claim 8, characterized in that: The frame (100) is surrounded by a number of side panels (110), each side panel (110) comprising a first part (111) and a second part (112) that are connected to each other; wherein the height of the second part (112) is less than the height of the first part (111); and the front sides of the first part (111) and the second part (112) together form a mounting surface for assembling an LED display module (600); After assembly, due to the height difference between the first part (111) and the second part (112), at least a first buffer area (A1) is formed between the first inner wall (1111) of the side plate (110) and the sound-transmitting area (610) on the LED display module (600).
11. The acoustically transparent module mounting frame structure according to claim 10, characterized in that: The wiring box (300) is located on the back of the second part (112) and is spaced apart from the LED display module (600).
12. The acoustically transparent module mounting frame structure according to claim 1, characterized in that: The frame (100) is provided with a protective pad (700) at the corner; the protective pad (700) is generally L-shaped, including a body (710) and a mounting part (720) protruding from the inner wall of the body (710); wherein, An avoidance surface (730) is formed between the mounting part (720) and the body (710); an avoidance groove (721) is provided at the corner of the mounting part (720).