Novel box structure of LED outdoor display screen

Abstract

The utility model discloses a novel box body structure of LED outdoor display screen relates to LED production technical field, including four connecting corner spare and four frame poles, four connecting corner spare and four frame poles are mutually connected and constitute the rectangular main frame of box body, and install a plurality of longitudinal reinforcing rib between two opposite frame poles, this novel box body structure of LED outdoor display screen is installed between two longitudinal reinforcing rib of the back box in the middle position, is used for the centralized installation power supply, controller and other high -power heating element, and the heat dissipation fan is used to the heat dissipation assembly. When the box body works, the heat dissipation fan starts, and the heat dissipation fan runs, and the hot air in the back box is extracted from the vent hole of the cover plate, which can efficiently discharge the accumulated heat outside the box, ensuring that the electronic components are always at an appropriate working temperature, improving the reliability and life of the display screen. Improve the heat dissipation performance of the box body.

Description

Technical Field

[0001] This utility model relates to the field of LED production technology, specifically to a novel cabinet structure for an outdoor LED display screen. Background Technology

[0002] As a crucial carrier of modern information display, outdoor LED displays have been widely used in advertising media, sports stadiums, traffic guidance, and public information dissemination. The cabinet, as the core load-bearing component of the display, not only needs to provide a mounting base for internal components such as LED modules, power supplies, and control systems, but also must possess excellent protective performance to withstand the complex and ever-changing outdoor environment, such as sun and rain, wind and sand erosion, and seasonal temperature variations. Therefore, the reliability of the cabinet structure directly determines the stability, lifespan, and maintenance costs of the entire display product.

[0003] Currently, the common LED outdoor display cabinet structures on the market are mainly made of aluminum alloy profiles. While these cabinets, constructed from extruded aluminum profiles, offer improvements in lightweight design and corrosion resistance, they rely heavily on passive cooling, depending on the aluminum heat sink at the back of the cabinet and natural air convection. However, as displays move towards higher brightness and refresh rates, the power density of internal components such as power supplies and controllers is constantly increasing, leading to a dramatic rise in heat generation. The limited area of ​​the heat sink cannot dissipate this heat effectively, causing heat buildup inside the cabinet. This prolonged operation of core components in high-temperature environments accelerates their aging process, resulting in higher failure rates, shorter lifespans, and even safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a novel cabinet structure for outdoor LED displays to address the significant shortcomings in heat dissipation performance in existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel cabinet structure for an outdoor LED display screen, comprising four connecting corner pieces and four frame rods, wherein the four connecting corner pieces and the four frame rods are interconnected to form a rectangular main frame of the cabinet, a plurality of longitudinal reinforcing ribs are installed between two opposite frame rods, and a back box is installed between two longitudinal reinforcing ribs located in the middle of the frame rods, wherein a heat dissipation component is provided inside the back box;

[0006] A cover plate is provided on the upper end of the back box. The back box and the cover plate are detachably connected by a mounting component. Several ventilation holes are provided on the upper end of the cover plate.

[0007] A waterproof plug is installed on one end of the back box and the cover plate. The front end of the waterproof plug is equipped with an insert plate, which is inserted into the back box and the cover plate. An injection channel is provided between the insert plate and the waterproof plug. The front end of the waterproof plug has several threaded holes. The back box and the cover plate are assembled with the waterproof plug bolts through the threaded holes.

[0008] Furthermore, the connecting corner piece includes a connecting post, and a supporting rib is installed inside the connecting post.

[0009] Furthermore, connecting plates are installed on both adjacent sides of the connecting corner piece, and the connecting plates are connected to the frame rod by bolts.

[0010] Furthermore, the upper end of the longitudinal reinforcing rib is provided with several mounting holes.

[0011] Furthermore, several transverse connecting plates are installed on both sides of the longitudinal stiffener, with one end of each transverse connecting plate installed on one side of the frame rod.

[0012] Furthermore, the mounting component includes a hinge, one side of the cover plate is hinged to one side of the back box via the hinge, and the other side of the cover plate is provided with a buckle, the other side of the cover plate is fastened to the other side of the back box via the buckle.

[0013] Compared with the prior art, the novel cabinet structure for an outdoor LED display screen provided by this utility model has the following beneficial effects.

[0014] The back box, positioned between two longitudinal reinforcing ribs in the middle, houses high-power, heat-generating components such as the power supply and controller. The cooling system utilizes a cooling fan. When the cabinet is operating, the cooling fan activates, drawing hot air from inside the back box out through ventilation holes in the cover plate. This efficiently removes accumulated heat, ensuring the electronic components remain at a suitable operating temperature, thus improving the reliability and lifespan of the display screen. This also enhances the cabinet's heat dissipation performance.

[0015] The triple protection of the positioning and fit of the insert plate, the mechanical pressure seal generated by the bolt tightening, and the elastomeric seal formed by the injection reduces the risk of loss of overall waterproof function due to the failure of a single seal. It is especially suitable for harsh outdoor environments such as wind, rain, humidity, and salt spray. In addition, the liquid sealant injected into the injection channel can flow fully before curing, which can effectively fill all micro gaps caused by manufacturing tolerances, installation errors, uneven box walls, or long-term vibration, thus improving the long-term stability of the seal. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A first-view structural schematic diagram provided for an embodiment of this utility model;

[0018] Figure 2 Provided for the embodiments of this utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the second-view structure provided for an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure provided for an embodiment of the present utility model;

[0021] Figure 5 A third-view structural schematic diagram provided for an embodiment of this utility model;

[0022] Figure 6 A fourth-view structural schematic diagram provided for an embodiment of this utility model;

[0023] Figure 7 This is a schematic diagram of the waterproof plug structure provided in an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Connecting corner fittings; 101. Connecting post; 102. Supporting rib; 103. Connecting piece; 2. Frame rod; 3. Longitudinal reinforcing rib; 4. Mounting hole; 5. Transverse connecting plate; 6. Back box; 7. Heat dissipation assembly; 8. Hinge; 9. Buckle; 10. Cover plate; 11. Ventilation hole; 12. Waterproof plug; 13. Insert plate; 14. Glue injection channel; 15. Threaded hole. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] As attached Figure 1 To be continued Figure 7 As shown:

[0028] Example 1:

[0029] This utility model provides a novel cabinet structure for an outdoor LED display screen, including four connecting corner pieces 1 and four frame rods 2. The four connecting corner pieces 1 and the four frame rods 2 are connected to each other to form a rectangular main frame of the cabinet. Several longitudinal reinforcing ribs 3 are installed between two opposite frame rods 2. A back box 6 is installed between two longitudinal reinforcing ribs 3 located in the middle of the frame rods 2. A heat dissipation component 7 is provided inside the back box 6. The heat dissipation component 7 adopts a cooling fan.

[0030] The cover plate 10 is located on the upper end of the back box 6. The back box 6 and the cover plate 10 are detachably connected by a mounting component. The upper end of the cover plate 10 has several ventilation holes 11, which are the air outlets of the cooling fan to dissipate heat from the box.

[0031] The connecting corner piece 1 includes a connecting post 101, inside which a supporting rib 102 is installed. The front end of the connecting post 101 is designed to be hollow, which achieves weight reduction while ensuring structural strength and forming a specific appearance.

[0032] Connecting pieces 103 are installed on both sides of the connecting corner piece 1, and the connecting pieces 103 are connected to the frame rod 2 by bolts.

[0033] The upper end of the longitudinal reinforcing rib 3 is provided with several mounting holes 4, which can be used to install LED module locking mechanisms, power supply fixing screws or cable tie holes.

[0034] Several transverse connecting plates 5 are installed on both sides of the longitudinal stiffener 3, with one end of the transverse connecting plate 5 installed on one side of the frame rod 2.

[0035] The mounting components include a hinge 8. One side of the cover plate 10 is hinged to one side of the back box 6 via the hinge 8. The other side of the cover plate 10 is provided with a buckle 9, which is fastened to the other side of the back box 6 via the buckle 9. The buckle 9 is a lever-type snap fastener or a press-type snap fastener.

[0036] Working Principle: The corner connector 1 is a key load-bearing node of the enclosure. The internal connecting column 101 and supporting rib 102 work together to enhance the bending and torsional strength of the corner, effectively preventing deformation of the enclosure during transportation, installation, and use. The hollow design at the front end of the connecting column 101 ensures both strength and aesthetics. The connecting pieces 103 on both sides of the corner connector 1 provide an installation interface for connection with the frame rod 2, enabling quick and stable frame assembly.

[0037] Longitudinal reinforcing ribs 3 are installed parallel to each other between two opposing frame rods 2. Several mounting holes 4 are provided on these ribs for installing and securing internal components such as LED display modules, power supplies, and receiver cards. These longitudinal reinforcing ribs 3 not only provide mounting holes but also connect in series, forming multiple longitudinal strong support bands. This significantly improves the cabinet's ability to resist wind loads and module weight, preventing screen swaying. Combined with transverse connecting plates 5 installed between the longitudinal reinforcing ribs 3 and the frame rods 2, the longitudinal reinforcing ribs 3 are transversely connected to the frame rods 2 of the main frame, thus forming a stable "well"-shaped mesh reinforcement structure inside the cabinet. This structure enhances the overall rigidity and stability of the cabinet, disperses stress, and avoids localized stress concentration.

[0038] The back box 6 is installed between two longitudinal reinforcing ribs 3 in the middle position, and is used to centrally house high-power heat-generating components such as the power supply and controller. The cooling fan used in the heat dissipation assembly 7 is the power source for active heat dissipation. When the cabinet is working, the cooling fan starts and runs, drawing hot air from inside the back box 6 out through the ventilation holes 11 on the cover plate 10. This efficiently removes accumulated heat from the cabinet, ensuring that the electronic components are always at a suitable operating temperature, improving the reliability and lifespan of the display screen, and enhancing the heat dissipation performance of the cabinet.

[0039] The cover 10 is detachably connected to the back box 6 via hinge 8 and latch 9. For routine maintenance or troubleshooting, the operator can release the latch 9 to rotate the cover 10 around the hinge 8, facilitating access to internal components such as the power supply and fan in the back box 6. Maintenance is simple and quick. After maintenance, closing the cover 10 and tightening the latch 9 restores the seal.

[0040] Example 2:

[0041] This embodiment is basically the same as the previous embodiment, except that: it includes a waterproof plug 12, which is installed on one end of the back box 6 and the cover plate 10. A plug plate 13 is installed at the front end of the waterproof plug 12. The plug plate 13 is inserted into the back box 6 and the cover plate 10. An adhesive injection channel 14 is provided between the plug plate 13 and the waterproof plug 12. The back box 6 and the cover plate 10 are fastened to the waterproof plug 12 by the cooperation of bolts and threaded holes 15.

[0042] Working principle: During installation, first align the insert plate 13 at the front end of the waterproof plug 12 with and insert it into the pre-drilled holes on the side walls of the back box 6 and the cover plate 10. After insertion, use bolts (not shown in the figure, but a common standard part in this field) through the threaded holes 15 inside the box wall to fix the waterproof plug 12, so that the base of the waterproof plug 12 fits tightly against the outer wall of the box. This process generates contact pressure, effectively flattening and filling the unevenness of the contact surface, forming a mechanical seal barrier that can effectively resist the direct impact of wind and rain and the loosening caused by vibration.

[0043] Liquid sealant is injected into the injection channel 14 through the injection port (not shown in the figure, but a common hole in the art) reserved on the waterproof plug 12. Under pressure, the sealant fills the entire injection channel 14 and penetrates into all the tiny assembly gaps between the insert plate 13 and the inner wall of the box, as well as the gaps between the waterproof plug 12 and the contact surface of the box wall. After the sealant cures, it bonds together with the insert plate 13, the box wall and the waterproof plug 12 to form an elastic seal that can eliminate tiny leakage paths that may be caused by manufacturing tolerances, thermal expansion and contraction or long-term vibration.

[0044] The triple protection provided by the positioning and fit of the insert plate 13, the mechanical pressure seal generated by the bolt tightening, and the elastomeric seal formed by the injection reduces the risk of loss of overall waterproof function due to the failure of a single seal. It is especially suitable for harsh environments such as outdoor wind, rain, humidity, and salt spray. Secondly, the liquid sealant injected into the injection channel 14 can flow fully before curing, which can effectively fill all micro gaps caused by manufacturing tolerances, installation errors, uneven box walls, or long-term vibration, thereby improving the long-term stability of the seal.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel cabinet structure for an outdoor LED display screen, comprising four connecting corner pieces (1) and four frame rods (2), wherein the four connecting corner pieces (1) and the four frame rods (2) are interconnected to form a rectangular main frame of the cabinet, characterized in that, A number of longitudinal reinforcing ribs (3) are installed between two opposing frame rods (2), and a back box (6) is installed between two of the longitudinal reinforcing ribs (3) located in the middle of the frame rods (2). A heat dissipation component (7) is provided inside the back box (6). A cover plate (10) is provided on the upper end of the back box (6). The back box (6) and the cover plate (10) are detachably connected by a mounting component. The upper end of the cover plate (10) is provided with several ventilation holes (11). A waterproof plug (12) is installed on one end of the back box (6) and the cover plate (10). A plug plate (13) is installed at the front end of the waterproof plug (12). The plug plate (13) is inserted into the back box (6) and the cover plate (10). An adhesive injection channel (14) is provided between the plug plate (13) and the waterproof plug (12). Several threaded holes (15) are opened at the front end of the waterproof plug (12). The back box (6) and the cover plate (10) are bolted to the waterproof plug (12) through the threaded holes (15).

2. The novel cabinet structure for an outdoor LED display screen according to claim 1, characterized in that, The connecting corner piece (1) includes a connecting post (101), and a supporting rib (102) is installed inside the connecting post (101).

3. The novel cabinet structure for an outdoor LED display screen according to claim 2, characterized in that, The connecting corner piece (1) is equipped with connecting pieces (103) on both adjacent sides, and the connecting pieces (103) are connected to the frame rod (2) by bolts.

4. The novel cabinet structure for an outdoor LED display screen according to claim 1, characterized in that, The longitudinal reinforcing rib (3) has several mounting holes (4) at its upper end.

5. A novel cabinet structure for an outdoor LED display screen according to claim 1, characterized in that, Several transverse connecting plates (5) are installed on both sides of the longitudinal reinforcing rib (3), with one end of the transverse connecting plate (5) installed on one side of the frame rod (2).

6. The novel cabinet structure for an outdoor LED display screen according to claim 1, characterized in that, The mounting component includes a hinge (8), one side of the cover plate (10) is hinged to one side of the back box (6) via the hinge (8), and the other side of the cover plate (10) is provided with a buckle (9), which is fastened to the other side of the back box (6) via the buckle (9).

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