LED display screen module

Abstract

The utility model relates to the technical field of display screens, and particularly discloses an LED display screen module which comprises a lamp panel assembly, a shell, a first adhesive layer and a second adhesive layer. The lamp panel assembly comprises an LED lamp and a PCB, and the LED lamp is arranged on the PCB; the shell is provided with a first mounting surface and a second mounting surface which are arranged oppositely, the PCB is arranged on the first mounting surface, and the LED lamp deviates from the first mounting surface; the shell is provided with a filling channel, and the filling channel is communicated with the first mounting surface and the second mounting surface; the first adhesive layer covers the side, provided with the LED lamps, of the PCB; and the second adhesive layer is filled between the PCB and the shell. According to the LED display screen module, the side, provided with the LED lamp, of the PCB can be waterproof through the first adhesive layer, the portion between the PCB and the shell can be waterproof through the second adhesive layer, and therefore the situation that water drops are generated between the PCB and the shell due to the temperature difference of the internal environment and the external environment, and consequently internal components are damaged is avoided, and the LED display screen module is prevented from being scrapped.

Description

Technical Field

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

[0002] An LED display screen is a kind of information display medium. It is a flat display screen that controls the display mode of light-emitting diodes and can be used to display various static information such as text and graphics, as well as various dynamic information such as animations and videos. An LED display screen module is one of the main components that make up the finished LED display screen, and it is mainly composed of a lamp board and a housing.

[0003] Currently, during the production and manufacturing process of an LED display screen module, it is necessary to perform waterproof treatment on the LED display screen module. In the prior art, waterproof treatment is carried out by applying glue on the light-emitting surface side of the lamp board and at the junction of the outer periphery of the lamp board and the housing. However, during this waterproof treatment process, glue filling is relatively difficult, and the waterproof treatment effect is poor. Water droplets are likely to be generated in the space between the lamp board and the housing due to the temperature difference between the internal and external environments, damaging the internal components, and thus causing product scrapping. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an LED display screen module to solve the problems in the prior art that glue filling is relatively difficult during the waterproof treatment process, the waterproof treatment effect is poor, water droplets are likely to be generated in the space between the lamp board and the housing due to the temperature difference between the internal and external environments, damaging the internal components, and thus causing product scrapping.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an LED display screen module, including:

[0007] A lamp board assembly, the lamp board assembly includes an LED lamp and a PCB board, and the LED lamp is arranged on the PCB board;

[0008] A housing, the housing has a first mounting surface and a second mounting surface arranged opposite to each other, the PCB board is arranged on the first mounting surface, and the LED lamp faces away from the first mounting surface; the housing is provided with a filling channel, and the filling channel communicates the first mounting surface and the second mounting surface;

[0009] A first glue layer, the first glue layer is covered and arranged on the side of the PCB board with the LED lamp;

[0010] A second glue layer, the second glue layer is filled and arranged between the PCB board and the housing.

[0011] As an optional solution of the above-mentioned LED display screen module, the LED lamp has a pin, the pin is connected to the PCB board, and the first adhesive layer can cover the pin.

[0012] As an optional solution for the above-mentioned LED display screen module, an annular rib is protruded from the outer periphery of the first mounting surface, and the distance between the upper surface of the annular rib and the surface of the PCB board is greater than the distance between the upper surface of the pin and the surface of the PCB board.

[0013] As an optional solution of the above-mentioned LED display screen module, the first mounting surface is protrudingly provided with a support column, and the PCB board is arranged on the support column to form a filling cavity between the PCB board and the first mounting surface, and the filling channel is connected to the filling cavity.

[0014] As an optional solution of the above-mentioned LED display screen module, the shell is provided with a connecting hole, and the connecting hole connects the filling cavity and the second mounting surface.

[0015] As an optional solution of the above-mentioned LED display screen module, a guide column is protruding from the second mounting surface, and the guide column has an inner hole, and the inner hole is connected to the connecting hole.

[0016] As an optional solution of the above-mentioned LED display screen module, a plurality of the connecting holes and the guide columns are provided, and the plurality of connecting holes and the plurality of guide columns are arranged around the outer circumference of the shell in a one-to-one corresponding manner.

[0017] As an optional solution of the above-mentioned LED display screen module, the light board assembly also includes an aviation socket, which is arranged on the side of the PCB board away from the LED lamp, and the aviation socket can pass through the shell through the filling channel.

[0018] As an optional solution of the above-mentioned LED display screen module, the LED display screen module also includes a back cover, which is detachably connected to the second mounting surface and is used to cover the filling channel, and part of the aviation socket can pass through the back cover.

[0019] As an optional solution of the above-mentioned LED display screen module, the filling channel is located in the middle position of the shell.

[0020] The beneficial effects of the utility model are:

[0021] The LED display module includes a lamp board assembly, a housing, a first glue layer and a second glue layer. The lamp board assembly includes an LED lamp and a PCB board. The LED lamp is disposed on the PCB board. The housing has a first mounting surface and a second mounting surface arranged opposite to each other. The PCB board is disposed on the first mounting surface, and the LED lamp faces away from the first mounting surface. Thus, the housing can protect some components on the PCB board and ensure that the light emitted by the LED lamp is emitted to the outside. The first glue layer is covered on the side of the PCB board where the LED lamp is located to waterproof the side of the PCB board where the LED lamp is located. The second glue layer is filled between the PCB board and the housing to waterproof between the PCB board and the housing, thereby avoiding the generation of water droplets between the PCB board and the housing due to the temperature difference between the internal and external environments, which may damage the internal components, preventing the LED display module from being scrapped, and extending the service life of the LED display module. Wherein, the housing is provided with a filling channel, and the filling channel communicates with the first mounting surface and the second mounting surface. Thus, the staff can perform glue filling from the second mounting surface through the filling channel, thereby reducing the glue filling difficulty, improving the glue filling efficiency and the glue filling effect. At the same time, it can also increase the contact surface between the glue and the air, making the glue dry more easily, thereby improving the production efficiency. Description of the Drawings

[0022] Figure 1 The structural schematic diagram of the LED display module provided by the embodiment of the present invention Figure 1 ;

[0023] Figure 2 is Figure 1 the partial enlarged view at A in

[0024] Figure 3 The structural schematic diagram of the housing provided by the embodiment of the present invention Figure 1 ;

[0025] Figure 4 The structural schematic diagram of the housing provided by the embodiment of the present invention Figure 2 ;

[0026] Figure 5 The structural schematic diagram of a part of the LED display module provided by the embodiment of the present invention;

[0027] Figure 6 The structural schematic diagram of the LED display module provided by the embodiment of the present invention Figure 2 .

[0028] In the figure:

[0029] 1. Lamp board assembly; 11. LED lamp; 111. Pin; 12. PCB board; 13. Aviation socket; 2. Housing; 21. First mounting surface; 211. Annular rib; 212. Support column; 22. Second mounting surface; 221. Flow guiding column; 23. Filling channel; 24. Communication hole; 3. Rear cover. Detailed implementation manners

[0030] The technical solutions of the present utility model will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0034] This embodiment provides an LED display module for display imaging.

[0035] As Figures 1 to 6 shown, the LED display module includes a lamp board assembly 1, a housing 2, a first glue layer and a second glue layer. The lamp board assembly 1 includes an LED lamp 11 and a PCB board 12. The LED lamp 11 is disposed on the PCB board 12. The housing 2 has a first mounting surface 21 and a second mounting surface 22 which are arranged opposite to each other. The PCB board 12 is disposed on the first mounting surface 21, and the LED lamp 11 faces away from the first mounting surface 21. Thus, the housing 2 can protect some components on the PCB board 12 and ensure that the light emitted by the LED lamp 11 is emitted to the outside.

[0036] The first glue layer is covered on the side of the PCB board 12 where the LED lamp 11 is located to waterproof the side of the PCB board 12 where the LED lamp 11 is located. The second glue layer is filled between the PCB board 12 and the housing 2 to waterproof between the PCB board 12 and the housing 2, thereby avoiding the generation of water droplets between the PCB board 12 and the housing 2 due to the temperature difference between the internal and external environments, preventing damage to the internal components, preventing the LED display module from being scrapped, and extending the service life of the LED display module. Among them, the housing 2 is provided with a filling channel 23. The filling channel 23 communicates with the first mounting surface 21 and the second mounting surface 22. Thus, the staff can perform glue filling from the second mounting surface 22 through the filling channel 23, thereby reducing the glue filling difficulty, improving the glue filling efficiency and glue filling effect. At the same time, it can also increase the contact surface between the glue and the air, making the glue dry more easily, thereby improving the production efficiency. Optionally, the filling channel 23 is located at the middle position of the housing 2, so that the glue can flow from the middle of the housing 2 to the surrounding, thereby improving the glue flow efficiency and avoiding the accumulation of glue in a local area and causing glue overflow.

[0037] As Figures 1 to 3 shown, the LED lamp 11 has pins 111. The pins 111 are connected to the PCB board 12. The first glue layer can cover the pins 111, so that when the first glue layer waterproofs the side of the PCB board 12 where the LED lamp 11 is located, it can also provide additional protection for the pins 111 of the LED lamp 11, thereby further improving the waterproof level. At the same time, a circular rib 211 is protrudingly provided on the outer periphery of the first mounting surface 21. The distance between the upper surface of the circular rib 211 and the surface of the PCB board 12 is greater than the distance between the upper surface of the pins 111 and the surface of the PCB board 12, so that when the glue is coated on the PCB board 12, while ensuring that the glue covers the pins 111, it can also avoid the glue overflowing from the boundary of the housing 2 and causing cost increase.

[0038] Furthermore, the first mounting surface 21 is provided with protruding support columns 212, and the PCB board 12 is disposed on the support columns 212, so that a filling cavity is formed between the PCB board 12 and the first mounting surface 21. The filling channel 23 communicates with the filling cavity. Thus, by providing the support columns 212, the PCB board 12 can be spaced apart from the first mounting surface 21, so as to avoid the components on the side of the PCB board 12 facing the first mounting surface 21, and at the same time, it is also convenient for the filling and flowing of the colloid. Optionally, a connecting column is provided at the top of the support column 212, and the connecting column can pass through the PCB board 12 and be connected to a screw, so that the screw can lock the PCB board 12 on the support column 212. Further optionally, a plurality of support columns 212 are provided, and the plurality of support columns 212 are spaced apart on the first mounting surface 21, so as to improve the stability of the installation of the PCB board 12. Specifically, the distance between the surface of the PCB board 12 and the first mounting surface 21 is greater than the height of the components on the side of the PCB board 12 facing the first mounting surface 21, and the difference distance is not greater than 0.2 mm, so as to reduce the amount of glue filling during glue filling and the weight of the finished module of the LED display module.

[0039] As Figure 3 and Figure 4 shown, the housing 2 is provided with a communication hole 24, and the communication hole 24 communicates the filling cavity and the second mounting surface 22. Thus, the staff can fill the inside of the filling cavity through the communication hole 24, so as to improve the glue filling rate, and the communication hole 24 can also be used as an exhaust hole to facilitate the exhaust of the colloid during pouring, and avoid the appearance of cavities in part of the filling cavity after the colloid pouring is completed. At the same time, the second mounting surface 22 is provided with a guide column 221 protruding therefrom. The guide column 221 has an inner hole, and the inner hole communicates with the communication hole 24. Thus, by providing the guide column 221 with an inner hole, the pouring of the colloid can be guided, so as to reduce the injection difficulty of the colloid from the communication hole 24, and the guide column 221 can also play a positioning role in the installation of the LED display module. Optionally, a plurality of communication holes 24 and guide columns 221 are provided, and the plurality of communication holes 24 and the plurality of guide columns 221 are spaced apart and arranged in a one-to-one correspondence around the outer periphery of the housing 2. Thus, through the cooperation of the filling channel 23 and the plurality of guide columns 221, the middle position and the edge position of the filling cavity can be filled with glue in cooperation, so as to ensure that the colloid quickly flows and fills the entire filling cavity.

[0040] As Figure 5 and Figure 6As shown, the light board assembly 1 also includes an air socket 13, which is arranged on the side of the PCB board 12 away from the LED lamp 11, and the air socket 13 can pass through the housing 2 through the filling channel 23, so that when the PCB board 12 is connected to the external circuit, there is no need to open an additional channel on the housing 2, thereby reducing the manufacturing cost of the LED display screen module. Specifically, when glue is poured through the filling channel 23, the glue pouring height is not higher than the seat surface of the air socket 13. At the same time, the LED display screen module also includes a back cover 3, which is detachably connected to the second mounting surface 22 and is used to cover the filling channel 23, and part of the air socket 13 can pass through the back cover 3, so that the light board assembly 1 can be protected by the setting of the back cover 3, and it can also be convenient for the staff to maintain abnormal components on the light board assembly 1 through the filling channel 23 after removing the back cover 3, thereby reducing the scrap rate of the LED display screen module and extending the service life of the LED display screen module.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An LED display screen module, characterized in that: include: A light board assembly (1), the light board assembly (1) comprising an LED lamp (11) and a PCB board (12), the LED lamp (11) being arranged on the PCB board (12); A housing (2), the housing (2) having a first mounting surface (21) and a second mounting surface (22) disposed opposite to each other, the PCB board (12) being disposed on the first mounting surface (21), and the LED lamp (11) being away from the first mounting surface (21); the housing (2) being provided with a filling channel (23), the filling channel (23) being in communication with the first mounting surface (21) and the second mounting surface (22); A first adhesive layer, the first adhesive layer covering a side of the PCB board (12) having the LED lamp (11); A second adhesive layer, wherein the second adhesive layer is filled and arranged between the PCB board (12) and the housing (2).

2. The LED display screen module according to claim 1, characterized in that: The LED lamp (11) has a pin (111), the pin (111) is connected to the PCB board (12), and the first adhesive layer can cover the pin (111).

3. The LED display screen module according to claim 2, characterized in that: An annular rib (211) is protrudingly provided on the outer periphery of the first mounting surface (21), and the distance between the upper surface of the annular rib (211) and the surface of the PCB board (12) is greater than the distance between the upper surface of the pin (111) and the surface of the PCB board (12).

4. The LED display screen module according to claim 1, characterized in that: The first mounting surface (21) is provided with a support column (212) protruding therefrom, and the PCB board (12) is arranged on the support column (212), so that a filling cavity is formed between the PCB board (12) and the first mounting surface (21), and the filling channel (23) is connected to the filling cavity.

5. The LED display screen module according to claim 4, characterized in that: The shell (2) is provided with a communication hole (24), and the communication hole (24) communicates with the filling cavity and the second mounting surface (22).

6. The LED display screen module according to claim 5, characterized in that: The second mounting surface (22) is protrudingly provided with a flow guide column (221), the flow guide column (221) having an inner hole, and the inner hole is connected to the connecting hole (24).

7. The LED display screen module according to claim 6, characterized in that: A plurality of the communicating holes (24) and the guide columns (221) are provided, and the plurality of communicating holes (24) and the plurality of guide columns (221) are arranged in a one-to-one correspondence and at intervals around the outer circumference of the shell (2).

8. The LED display screen module according to claim 1, characterized in that: The light board assembly (1) further comprises a flight socket (13), wherein the flight socket (13) is arranged on a side of the PCB board (12) away from the LED lamp (11), and the flight socket (13) can pass through the housing (2) via the filling channel (23).

9. The LED display screen module according to claim 8, characterized in that: The LED display screen module further comprises a rear cover (3), wherein the rear cover (3) is detachably connected to the second mounting surface (22) and is used to cover the filling channel (23), and a portion of the flight socket (13) can pass through the rear cover (3).

10. The LED display screen module according to any one of claims 1 to 9, characterized in that: The filling channel (23) is located in the middle of the shell (2).

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