LED display screen

Abstract

The utility model belongs to the technical field of LED display equipment, and particularly relates to an LED display screen which comprises a frame, a central control assembly installed on the upper surface of the frame and a lamp panel assembly installed on the lower surface of the frame, the central control assembly comprises a central control shell, a first sealing rubber ring is arranged at the connecting position of the central control shell and the frame and is a closed ring, and the lamp panel assembly is installed on the lower surface of the frame. The upper surface and the lower surface of the first sealing rubber ring are each provided with at least two closed protruding rings arranged at intervals in a protruding mode. A center control inner cavity is defined by the center control shell and the frame, and a second sealing rubber ring is arranged at the connecting position of the lamp panel assembly in the center control inner cavity and the frame. According to the LED display screen, the first sealing rubber ring is arranged at the joint of the central control shell and the frame, and the second sealing rubber ring is arranged in the central control inner cavity, so that the protection grade of the display screen is effectively improved, and the use field of the LED display screen is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED display equipment, in particular to an LED display screen. Background Art

[0002] LED displays are devices that display text, graphics, images, and other information by controlling the display mode of semiconductor light-emitting diodes. They offer advantages such as high brightness, low power consumption, low operating voltage, and vivid colors. In recent years, LED displays have been widely used in various consumer electronics and automated control instruments to display a variety of information to meet customer needs.

[0003] With the development and progress of society, the application scenarios of LED displays are becoming more and more extensive. For example, they can be used in places with high humidity, such as cruise ships and seaside. In places with high humidity, the moisture in the air will increase. If moisture diffuses into the LED display, it will shorten the lifespan and even cause the LED display to short-circuit and damage its function. The LED displays currently on the market do not have a sufficient protection level and are not suitable for use in high humidity environments. Utility Model Content

[0004] In order to solve the problems in the above-mentioned background technology, the present invention provides an LED display screen, which has a first sealing rubber ring at the connection between the central control shell and the frame, and a second sealing rubber ring in the inner cavity of the central control, thereby effectively improving the protection level of the display screen and widening the use area of ​​the LED display screen.

[0005] The utility model adopts the following technical solutions:

[0006] An LED display screen includes a frame, a central control assembly mounted on the upper surface of the frame, and a light panel assembly mounted on the lower surface of the frame, wherein:

[0007] The central control assembly includes a central control housing, and a first sealing rubber ring is provided at the connection between the central control housing and the frame. The first sealing rubber ring is a closed ring, and at least two closed convex rings are convexly provided on the upper surface and the lower surface of the first sealing rubber ring.

[0008] The central control shell and the frame form a central control inner cavity, and a second sealing rubber ring is provided at the connection position between the light board assembly in the central control inner cavity and the frame.

[0009] Furthermore, an annular groove is provided at the connection between the frame and the central control shell, the first sealing rubber ring is installed in the annular groove, and at least one side hole connected to the outside is provided on the side wall of the annular groove, and a warning protrusion extending into the side hole is convexly provided at the corresponding position of the outer wall of the first sealing rubber ring.

[0010] Furthermore, the light panel assembly includes a light panel and a mask installed below the light panel; a countersunk hole is formed at the connection between the frame and the light panel assembly, and the first connecting member passes through the bottom wall of the countersunk hole and is connected to the mask.

[0011] Furthermore, the second sealing rubber ring includes a solid boss extending downward into the countersunk hole, and the outer side surface of the solid boss forms a guide slope.

[0012] Furthermore, a circle of protective protrusions is formed on the outer edge of the lower bottom surface of the solid boss, the protective protrusions abut against the bottom surface of the countersunk hole, and the first connecting member is located in the space surrounded by the protective protrusions.

[0013] Furthermore, there are multiple countersunk holes on the frame, and each countersunk hole is provided with a solid protrusion, and the multiple solid protrusions are connected as a whole to form a second sealing rubber ring, and the second sealing rubber ring and the first sealing rubber ring are separately provided or integrally provided.

[0014] Furthermore, the upper end surface of the frame is provided with a plurality of annular columns for fixing the second sealing rubber ring, and annular sleeves are provided at positions on the second sealing rubber ring corresponding to the annular columns, and the annular sleeves are sleeved on the annular columns.

[0015] Furthermore, the central control assembly further includes an aviation plug connector mounted on the central control housing, the aviation plug connector including a connecting seat, and an annular protrusion is formed on one end surface of the connecting seat close to the central control housing;

[0016] A mounting platform is provided on the side of the central control housing opposite to the connecting seat. The outer side of the mounting platform is a sealing contact surface. The annular protrusion abuts against the sealing contact surface. The connecting seat is fixed to the central control housing through a second connecting piece.

[0017] Furthermore, a first boss is protruding from the inner side surface of the connecting seat and located inside the annular protrusion, a second boss is protruding from the first boss, a first metal sheet is injection-molded in the first boss, and a wiring harness is fixed on the second boss.

[0018] Furthermore, a plug sheath is provided on the outer side of the connecting socket, and a second metal sheet is injection-molded inside the plug sheath.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) The LED display screen of the present invention is provided with a first sealing rubber ring at the connection between the central control shell and the frame. The first sealing rubber ring is a closed ring, and at least two closed convex rings spaced apart are convexly provided on the upper and lower surfaces of the first sealing rubber ring. After the central control shell is installed on the frame, a closed space is formed between the closed convex rings, which can effectively prevent moisture from entering the central control cavity from the connection between the central control shell and the frame during use; a second sealing rubber ring is provided at the connection between the light board assembly and the frame in the central control cavity, which effectively prevents moisture from entering the central control cavity from the connection between the light board assembly and the frame. The provision of the first sealing rubber ring and the second sealing rubber ring of the present application can effectively improve the protection level of the display screen and expand the use field of the LED display screen.

[0021] (2) The LED display screen of the present invention is provided with an annular groove at the connection between the frame and the central control shell, and at least one side hole connected to the outside is provided on the side wall of the annular groove. A first sealing rubber ring is provided in the annular groove, and a warning protrusion extending into the side hole is provided at a corresponding position on the outer wall of the first sealing rubber ring. The color of the warning protrusion is different from that of the frame and the central control shell, and it is exposed to the outside to serve as a warning, thereby ensuring that the protection level of the LED display screen used in places with high humidity meets the requirements.

[0022] (3) The aviation plug connector of the LED display screen of the present invention includes a connecting seat, and an annular protrusion is formed on one end face of the connecting seat close to the central control shell. The position on the central control shell opposite to the annular protrusion is a sealing contact surface. The annular protrusion abuts against the sealing contact surface, and the annular protrusion can be squeezed to a greater extent, which can more effectively prevent the infiltration of air and moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a diagram showing the overall structure of an LED display screen provided in one embodiment of the present application;

[0025] Figure 2 This is a structural diagram of the LED display screen provided by one embodiment of the present application after removing the central control component;

[0026] Figure 3 A diagram showing the framework of an LED display screen according to an embodiment of the present application;

[0027] Figure 4 for Figure 3A magnified view of part A in FIG;

[0028] Figure 5 This is a diagram of the integrated structure of the first sealing rubber ring and the second sealing rubber ring of the LED display screen provided in one embodiment of the present application;

[0029] Figure 6 A cross-sectional view of a first sealing rubber ring of an LED display screen provided in one embodiment of the present application;

[0030] Figure 7 A longitudinal cross-sectional view of the connection between the second sealing rubber ring and the frame of the LED display screen provided in one embodiment of the present application;

[0031] Figure 8 for Figure 7 A magnified view of part B in FIG;

[0032] Figure 9 A structural diagram of the central control housing of an LED display screen provided in one embodiment of the present application;

[0033] Figure 10 This is a structural diagram of an aviation plug connector for an LED display screen provided in one embodiment of the present application;

[0034] Among them: 1-frame, 11-annular groove, 12-side hole, 13-countersunk hole, 14-annular column, 2-central control assembly, 21-central control shell, 211-mounting platform, 212-sealing contact surface, 22-aviation plug connector, 221-connecting seat, 222-annular protrusion, 223-first boss, 224-second boss, 225-plug sleeve, 3-light board assembly, 31-light board, 32-mask, 4-first sealing rubber ring, 41-closing convex ring, 42-warning protrusion, 5-second sealing rubber ring, 51-solid boss, 52-guide slope, 53-protective protrusion, 54-annular sleeve, 6-first connecting piece. DETAILED DESCRIPTION

[0035] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The following is combined with Figure 1 To the attached Figure 10 And specific embodiments discuss the present invention in detail.

[0037] like Figures 1 to 10As shown, the present invention provides an LED display screen for displaying text, graphics, images and other information, which can be used in various places, such as cruise ships, beaches, airports, hotels, etc. The LED display screen includes a frame 1, a central control component 2 installed on the upper surface of the frame 1, and a light board component 3 installed on the lower surface of the frame 1. The central control component 2 includes a central control shell 21, and all electrical related components are arranged in the central control shell 21. Therefore, a higher requirement is placed on the sealing performance of the inner cavity of the central control shell 21. For this reason, a first sealing rubber ring 4 is provided at the connection between the central control shell 21 and the frame 1. The first sealing rubber ring 4 is a closed ring, and its size is adapted to the annular edge of the lower end of the central control shell 21. The upper surface and lower surface of the first sealing rubber ring 4 are Each of the central control housing 21 and the frame 1 is provided with at least two spaced-apart sealing protrusions 41. After the central control housing 21 is installed with the frame 1, the sealing protrusions 41 on the upper and lower surfaces of the first sealing rubber ring 4 are squeezed, and a sealed space is formed between adjacent sealing protrusions 41, which effectively prevents the ingress of air and water. In one embodiment, there are two sealing protrusions 41, an inner sealing protrusion and an outer sealing protrusion. A closed space is formed between the inner and outer sealing protrusions and the central control housing 21 or the frame 1. The formation of the sealed space improves the protection level of the central control assembly 2. The central control housing 21 and the frame 1 enclose the central control cavity. A second sealing rubber ring 5 is provided at the connection between the light board assembly 3 and the frame 1 within the central control cavity. The second sealing rubber ring 5 effectively prevents moisture from entering the central control cavity through the connection between the light board assembly 3 and the frame 1.

[0038] The provision of the first sealing rubber ring 4 and the second sealing rubber ring 5 of the present application can effectively improve the protection level of the display screen and expand the use venues of the LED display screen, so that the LED display screen can be used not only in airports, shopping malls, hotels, cinemas, subways and other places with general requirements, but also in places with high humidity such as cruise ships and beaches.

[0039] See Figure 3 、 Figure 4 、 Figure 5 In this embodiment of the present application, an annular groove 11 is provided at the connection between the frame 1 and the central control housing 21. The first sealing rubber ring 4 is installed in the annular groove 11. The sidewall of the annular groove 11 is provided with at least one side hole 12 that communicates with the outside. A warning protrusion 42 is provided at a corresponding position on the outer wall of the first sealing rubber ring 4, extending into the side hole. The warning protrusion 42 has an interference fit with the side hole 12 to ensure sealing. It should be noted that the color of the warning protrusion 42 is different from that of the frame 1 and the central control housing 21, and it is exposed to the outside, making it clearly visible to outsiders. The warning protrusion 42 mainly serves as a warning to ensure that the protection level of the LED display screen used in high-humidity environments meets the required level of protection.

[0040] For details, see Figure 5 、 Figure 7 、 Figure 8 The light panel assembly 3 includes a light panel 31 and a mask 32 installed below the light panel 31; a countersunk hole 13 is formed at the connection between the frame 1 and the light panel assembly 3, and the first connecting member 6 passes through the bottom wall of the countersunk hole 13 and is connected to the mask 32, that is, the first connecting member 6 connects the mask 32 and the frame 1, and the light panel 31 is located between the frame 1 and the mask 32. The first connecting member 6 of the present application is fixedly connected to the mask 32 from the back of the frame 1. This installation method can effectively prevent the protective coating on the surface of the light panel 31 from being damaged by the surface damage caused by the first connecting member 6, thereby affecting the protection of the light panel 31; it can be understood that the conventional frame 1 and the mask 32 are connected in the following manner: a hole is provided on the mask 32, and the connecting member passes through the hole of the mask from the front of the mask 32 and is fixedly installed on the frame 1. The second sealing rubber ring 5 includes a solid boss 51 extending downward into the countersunk hole 13, and the outer side surface of the solid boss 51 forms a guide slope 52 to facilitate the installation of the solid boss 52. As can be seen, the frame 1 and the mask 32 have multiple connection points within the central control cavity. Each connection point is formed with a countersunk hole 13, and a solid boss 51 is installed in the countersunk hole 13 to ensure a tight connection. Optionally, each connection point is provided with an independent second sealing rubber ring 5, and multiple second sealing rubber rings 5 ​​are provided separately and independently of each other; or multiple solid bosses 51 are connected to form a second sealing rubber ring 5 via a connecting strip. The solid boss 51 at the lower end of the second sealing rubber ring 5 corresponds one-to-one with the countersunk hole 13, so positioning is completed in one step during installation, saving installation time.

[0041] For details, see Figure 8 A protective protrusion 53 is formed on the outer edge of the lower bottom surface of the solid boss 51. The protective protrusion 53 abuts the bottom surface of the countersunk hole 13, and the first connecting member 6 is located in the space enclosed by the protective protrusion 53. The protective protrusion 53 abuts the bottom surface of the countersunk hole 13 to form a sealed space, which further prevents air or moisture from entering the central control cavity.

[0042] Specifically, the second sealing rubber ring 5 and the first sealing rubber ring 4 are provided separately or integrally.

[0043] This application is described by taking the integrated arrangement of the first sealing rubber ring 5 and the second sealing rubber ring 4 as an example.

[0044] In some embodiments, the frame 1 and the mask 32 have multiple connection positions in the central control cavity, and the multiple connection positions are divided into several groups, each group has at least two connection positions, and the physical bosses 51 on all the connection positions in each group are commonly connected to an annular sleeve 54. The upper end surface of the frame 1 is provided with multiple annular columns 14 for fixing the second sealing rubber ring 5. The annular sleeve 54 on the second sealing rubber ring 5 is sleeved on the annular column 14 of the frame 1 to achieve the stability of the first sealing rubber ring 4 and the second sealing rubber ring 5. It can be understood that when installing the first sealing rubber ring 4 and the second sealing rubber ring 5 of the present application, first align each physical boss 51 with the countersunk hole 13 and press it down, and press the first sealing rubber ring 4 into the annular groove 11, and the annular sleeve 54 is sleeved on the annular column 14 of the frame 1, and the installation is completed. After installation, the stability of the first sealing rubber ring 4 and the second sealing rubber ring 5 is better.

[0045] For details, see Figure 1 、 Figure 9 and Figure 10 The central control component 2 also includes an aviation plug connector 22 installed on the central control shell 21. Generally, two groups of aviation plug connectors 22 are provided on the side of the central control shell 21. The aviation plug connector 22 includes a connecting seat 221, which is used to be installed with the central control shell 21. An annular protrusion 222 is formed on the end surface of the connecting seat 221 close to the central control shell 21; a mounting platform 211 is provided on the side of the central control shell 21 opposite to the connecting seat 221, and the outer side surface of the mounting platform 211 is a sealing contact surface 212, and the annular protrusion 222 abuts against the sealing contact surface 212, and the annular protrusion 222 plays a sealing role; during installation, the setting of the annular protrusion 222 can increase the pressure between the annular protrusion 222 and the mounting platform 211, so that the annular protrusion 222 is squeezed to a greater extent, which can more effectively prevent the infiltration of air and moisture. The central control housing 21 in this application has four aviation plug connectors 22. These four aviation plug connectors 22 share the same sealing structure as the central control housing 21, creating a sealed space within the central control cavity and further improving the safety of the electrical components within the central control cavity. The connector base 221 is fixed to the central control housing 21 via a second connector, which can be a fastener such as a screw or bolt.

[0046] Specifically, the inner side of the connector 221, located within the annular protrusion 222, further features a first boss 223. A second boss 224 extends above the first boss 223. A first metal sheet is injection-molded into the first boss 223, and a wiring harness is secured to the second boss 224. A plug sheath 225 is provided on the outer side of the connector 221, and a second metal sheet is injection-molded into the plug sheath 225. The sections on both sides of the connector 221 are constructed as an integrated metal injection-molded structure, minimizing deformation at the connection with the central control housing 21. This reduces the possibility of moisture and dust entering the central control cavity, ensures a tight seal, and extends the life of the colloid material used in the plug sheath and other components.

[0047] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. An LED display screen, characterized in that: It includes a frame, a central control assembly mounted on the upper surface of the frame, and a light panel assembly mounted on the lower surface of the frame, wherein: The central control assembly includes a central control housing, and a first sealing rubber ring is provided at the connection between the central control housing and the frame. The first sealing rubber ring is a closed ring, and at least two closed convex rings are convexly provided on the upper surface and the lower surface of the first sealing rubber ring. The central control shell and the frame form a central control inner cavity, and a second sealing rubber ring is provided at the connection position between the light board assembly and the frame in the central control inner cavity.

2. The LED display screen according to claim 1, characterized in that: An annular groove is provided at the connection between the frame and the central control shell, the first sealing rubber ring is installed in the annular groove, and at least one side hole connected to the outside is provided on the side wall of the annular groove, and a warning protrusion extending into the side hole is convexly provided at a corresponding position on the outer side wall of the first sealing rubber ring.

3. The LED display screen according to claim 1, characterized in that: The light panel assembly includes a light panel and a mask installed below the light panel; a countersunk hole is formed at the connection between the frame and the light panel assembly, and a first connecting member passes through the bottom wall of the countersunk hole and is connected to the mask.

4. The LED display screen according to claim 3, characterized in that: The second sealing rubber ring includes a solid boss extending downward into the countersunk hole, and the outer side surface of the solid boss forms a guide slope.

5. The LED display screen according to claim 4, characterized in that: A circle of protective protrusions is formed on the outer edge of the lower bottom surface of the solid boss, the protective protrusions abut against the bottom surface of the countersunk hole, and the first connecting member is located in the space surrounded by the protective protrusions.

6. The LED display screen according to claim 5, characterized in that: There are multiple countersunk holes on the frame, and each countersunk hole is provided with a solid protrusion. The multiple solid protrusions are connected as a whole to form the second sealing rubber ring. The second sealing rubber ring and the first sealing rubber ring are separately provided or integrally provided.

7. The LED display screen according to claim 6, characterized in that: The upper end surface of the frame is provided with a plurality of annular columns for fixing the second sealing rubber ring, and annular sleeves are provided at positions corresponding to the annular columns on the second sealing rubber ring, and the annular sleeves are sleeved on the annular columns.

8. The LED display screen according to claim 1, characterized in that: The central control assembly further includes an aviation plug connector mounted on the central control housing, the aviation plug connector including a connecting seat, and an annular protrusion is formed on one end surface of the connecting seat close to the central control housing; A mounting platform is provided on the side of the central control housing opposite to the connecting seat. The outer side of the mounting platform is a sealing contact surface. The annular protrusion abuts against the sealing contact surface. The connecting seat is fixed to the central control housing through a second connecting piece.

9. The LED display screen according to claim 8, characterized in that: The inner side surface of the connecting seat is located inside the annular protrusion and is further provided with a first boss, a second boss is provided on the first boss, a first metal sheet is injection-molded in the first boss, and a wiring harness is fixed on the second boss.

10. The LED display screen according to claim 8, characterized in that: A plug sheath is provided on the outer side of the connecting socket, and a second metal sheet is injection-molded inside the plug sheath.

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