CN209947331U

CN209947331U - LED display screen, LED box and LED display module thereof

Info

Publication number: CN209947331U
Application number: CN201921070222.5U
Authority: CN
Inventors: 王镇; 董刚; 陈成栋; 孔祥伟; 王长江
Original assignee: QINGDAO AUTODISP CO Ltd
Current assignee: QINGDAO AUTODISP CO Ltd; Qingdao Autodisplay Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-01-14
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a LED display module assembly, including the module casing that is equipped with PCB board cavity, the inside week side of PCB board cavity is equipped with first recess, be equipped with the PCB board in the PCB board cavity, the surface of PCB board is equipped with outside convex LED lamp pearl, and the encapsulation plastic envelope wraps up the cover the surface of PCB board and the bottom of LED lamp pearl is in order to realize waterproof sealing, the week side of encapsulation plastic envelope is in the first recess with the module casing laminating is in order to realize waterproof sealing. The utility model also discloses a LED box. The utility model also discloses a LED display screen. Above-mentioned LED display module assembly realizes better water-proof effects through the waterproof construction of first recess and encapsulating glue film.

Description

LED display screen, LED box and LED display module thereof

Technical Field

The utility model relates to a LED application technology field, in particular to LED display module assembly. Still relate to an LED box that adopts above-mentioned LED display module assembly. In particular to an LED display screen adopting the LED box body.

Background

The LED is a short term of a light-emitting diode, is a luminescent material capable of converting electric energy into visible light, and has the advantages of energy conservation and environmental protection. The LED display screen is one of the important applications of LED lighting technology, and is commonly used for outdoor advertisement display and the like.

The LED display screen for outdoor advertisement display can be influenced by special weather such as rain, snow, fog and the like, and waterproof improvement is carried out on the traditional LED display screen at present. The current general implementation is: the LED module and the closed box body structure are processed to form an LED outdoor display screen box body, and then the box body is assembled to form an outdoor LED display screen. However, the waterproof measures of the LED display screen in the prior art are too simple, and the waterproof effect is poor; along with the increase of the service time, rainwater can enter through the opening for wiring on the box body, so that a short circuit of a circuit board in the box body is caused, and the LED display screen is scrapped; in addition, the problems that the bearing capacity is poor, the installation is troublesome, the display effect is influenced by the large gap of the flatness difference and the like exist in the splicing process of the existing box body structure, so that the defects exist in the prior art and the improvement is needed.

Therefore, how to provide an LED display module with better waterproof performance is a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a LED display module assembly, the waterproof construction of first recess and encapsulating glue film has better waterproof sealing performance. Another object of the utility model is to provide a LED box. It is still another object of the present invention to provide an LED display screen.

In order to achieve the purpose, the utility model provides a LED display module assembly, including the module casing that is equipped with PCB board cavity, the inside week side of PCB board cavity is equipped with first recess, be equipped with the PCB board in the PCB board cavity, the surface of PCB board is equipped with outside convex LED lamp pearl, and the encapsulation adhesive tape wraps up in the cover the surface of PCB board and the bottom of LED lamp pearl is in order to realize waterproof sealing, the week side of encapsulation adhesive tape is in the first recess with the module casing laminating is in order to realize waterproof sealing.

Preferably, still including locating the encapsulating glue layer outside is in order to realize sealing the face guard of PCB board cavity, the face guard is equipped with and is used for supplying the hole that LED lamp pearl wore out, the face guard with module casing fixed connection.

Preferably, one side of the module shell, which is far away from the cavity of the PCB, is provided with a control cavity for arranging a control module, and the control module is connected with the PCB.

Preferably, the control module comprises a module control board connected with the back side of the PCB and a heat dissipation cover for fixing the module control board, the power supply is fixedly connected with the heat dissipation cover, and a heat conduction sheet is arranged between the power supply and the heat dissipation cover.

Preferably, the heat dissipation cover seals the control cavity, and a sealing gasket in sealing connection with the control cavity is arranged on the periphery of the heat dissipation cover.

Preferably, two layers of second grooves for compressing and sealing the sealing gasket are arranged around the end part of the control cavity, which is attached to the sealing gasket.

Preferably, the outer side of the heat dissipation cover is provided with a wire inlet socket and a wire outlet socket which are connected with the master control box through a waterproof connecting wire, and the joint of the waterproof connecting wire and the wire inlet socket or the wire outlet socket is a quick locking head for realizing self-locking and water prevention.

Preferably, the number of the PCB board cavities is two, the two PCB board cavities are respectively provided with the first groove and the potting adhesive layer, and the two PCB board cavities are arranged side by side along the length direction with the same width or arranged side by side along the width direction with the same length.

The utility model provides a LED box, including above-mentioned LED display module assembly, the dorsal part of LED display module assembly is equipped with adjustable fixed subassembly in order to realize the installation at the module mount, fixed subassembly's quantity is two, two fixed subassembly is central symmetry and sets up the dorsal part of LED display module assembly.

The utility model provides a LED display screen, including above-mentioned LED box, it is a plurality of the concatenation of LED box is a plurality of the LED box connects gradually and establishes ties through waterproof connecting wire and inserts the master control case, master control case includes the master control box and locates master control board in the master control box, the master control box outside is equipped with power supply input interface, data input interface, photosensitive interface and data and power supply output interface.

Compared with the prior art, the utility model provides a LED display module assembly includes the module casing, the module casing is equipped with the PCB board cavity, the built-in PCB board that is equipped with of PCB board cavity, the inside week side of PCB board cavity sets up first recess, the surface of PCB board is equipped with outside convex LED lamp pearl, potting adhesive layer parcel covers PCB's surface and the bottom of LED lamp pearl, the week side edge of potting adhesive layer is sealed with the laminating of module casing in first recess, this LED display module assembly is through setting up installing of PCB board cavity in order to realize the PCB board in the module casing, the parcel through the bottom of potting adhesive layer to PCB board's surface and LED lamp pearl covers the waterproof sealing in order to realize the cavity middle part, week side edge of potting adhesive layer gets into the inside week side first recess of PCB board cavity and laminates with the waterproof sealing in order to realize cavity week side with the module casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an LED display screen provided in an embodiment of the present invention;

FIG. 2 is an exploded view of the LED housing of FIG. 1;

fig. 3 is an exploded schematic view of a control module according to an embodiment of the present invention;

fig. 4 is a schematic side sectional view of an LED display module according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4A;

FIG. 6 is an enlarged view of a portion of FIG. 4 at B;

fig. 7 is a schematic structural diagram of a master control box according to an embodiment of the present invention.

Wherein:

10-LED display module, 11-module shell, 111-first groove, 112-control cavity, 113-second groove, 12-PCB board, 121-LED lamp bead, 13-potting adhesive layer, 14-face mask, 15-sealing gasket, 16-control module, 161-module control board, 162-power supply, 163-heat conducting sheet, 164-heat dissipation cover, 165-wire inlet socket, 166-wire outlet socket, 17-fixing component, 18-waterproof connecting wire, 20-module fixing frame, 30-master control box, 31-master control box, 32-master control board, 33-power supply input interface, 34-data input interface, 35-photosensitive interface, 36-data and power supply output interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Please refer to fig. 1 to fig. 7, wherein fig. 1 is a schematic structural diagram of a LED display screen provided in an embodiment of the present invention, fig. 2 is a schematic exploded diagram of a LED box in fig. 1, fig. 3 is a schematic exploded diagram of a control module provided in an embodiment of the present invention, fig. 4 is a schematic side-sectional diagram of a LED display module provided in an embodiment of the present invention, fig. 5 is a schematic partially enlarged diagram of a position a in fig. 4, fig. 6 is a schematic partially enlarged diagram of a position B in fig. 4, and fig. 7 is a schematic structural diagram of a master control box provided in an embodiment of the present invention.

In a specific embodiment, the utility model provides a LED display module assembly 10 is including the module casing 11 that is equipped with the PCB board cavity, and PCB board 12 is installed in the PCB board cavity, and PCB board 12's surface is equipped with by the inside outside convex LED lamp pearl 121 of PCB board cavity. In order to protect the PCB 12 and realize the waterproof function of the PCB cavity, the surface of the PCB 12 is provided with the potting adhesive layer 13, and waterproof sealing is realized by utilizing the sealing characteristic of the potting adhesive layer 13.

Exemplarily, the potting adhesive layer 13 is made of silica gel, the front surface of the LED display module 10 is also provided with one side of the PCB 12, and the lamp legs at the bottoms of the LED lamp beads 121 fixed by welding and surface components of the PCB 12 are completely covered by the silica gel potting adhesive layer, so as to achieve a waterproof effect.

In order to further improve the waterproof effect of the PCB cavity on the front surface of the LED display module 10, a first groove 111 is disposed on the inner periphery of the PCB cavity.

Exemplarily, after the silica gel potting adhesive layer wraps and covers the surface of the PCB 12 and the lamp legs of the LED lamp beads 121, the silica gel potting adhesive layer enters the first groove 111 to be in contact with the module shell 11 for fitting, so that the immersion of liquid water can be better prevented, and a better waterproof effect is achieved.

It should be noted that, in this embodiment, the utility model discloses a core improvement point lies in adopting encapsulating glue layer 13 and first recess 111's structural style, realizes the waterproof sealing of PCB board cavity in LED display module assembly 10's front for this LED display module assembly 10 can be better be applicable to in the outdoor LED equipment that needs improve waterproof performance, do not belong to the focus of this embodiment to other structure and theory of operation like PCB board 12, please refer to prior art, no longer give consideration to here one by one.

In this embodiment, still including locating face guard 14 in the encapsulating adhesive layer 13 outside, face guard 14 shroud or buckle closure PCB board cavity make the PCB board cavity seal, and face guard 14 adopts modes such as screw thread or buckle with module casing 11 fixed connection, and face guard 14 is equipped with and can sets up a plurality of holes, and LED lamp pearl 121 is worn out by face guard 14.

In addition, a control cavity 112 is disposed on a side of the module housing 11 away from the PCB cavity, that is, on the back of the LED display module 10, the control module 16 is disposed in the control cavity 112, and the control module 16 is connected to the PCB 12. Specifically, the PCB cavity and the control cavity 112 are respectively disposed on the front and back sides of the LED display module 10, and the PCB cavity and the control cavity 112 are internally communicated to facilitate connection between the control module 16 and the PCB 12.

In the embodiment, the control module 16 includes a module control board 161 connected to the back side of the PCB 12 and a heat dissipation cover 164 for fixing the module control board 161, the power source 162 is fixedly connected to the heat dissipation cover 164, and a heat conduction sheet 163 is disposed between the power source 162 and the heat dissipation cover 164. Specifically, the heat dissipation cover 164 is fixed relative to the module housing 11, the heat dissipation cover 164 fixes the rest of the components of the control module 16 and transfers the heat inside the control module 16 to the outside of the control cavity 112, the power supply 162 supplies power to the power consuming components of the LED display module 10, and the heat conduction sheet 163 includes, but is not limited to, a heat conductive silicone sheet.

In order to achieve the waterproof effect of the control cavity 112 on the back of the LED display module 10 to protect the control module 16, the heat dissipation cover 164 encloses the control cavity 112, and the periphery of the heat dissipation cover 164 is provided with a sealing gasket 15 hermetically connected with the control cavity 112. Specifically, the control chamber 112 is sealed against water by the heat sink cap 164 and the gasket 15, preventing liquid water from entering the control chamber 112 and damaging the control module 16.

In order to further improve the waterproof effect of the control cavity 112 on the back surface of the LED display module 10, two layers of second grooves 113 for compressing and sealing the gasket 15 are formed around the end portion of the control cavity 112 attached to the gasket 15. Specifically, the second groove 113 includes inner and outer layers disposed along the wall surface of the control chamber 112, and the sealing effect of the gasket 15 at the joint is enhanced by the second groove 113. Besides, the top of the sealing gasket 15 is provided with three layers of line protrusions which are tightly pressed with the bottom plane of the heat dissipation cover 164, and two layers of second grooves 113 are tightly pressed with the bottom plane of the sealing gasket 15.

In this embodiment, the module control board 161, the power source 162 and the heat conducting plate 163 are disposed in the control cavity 112 inside the heat dissipating cover 164, a waterproof socket for connecting with the main control box 30 through the waterproof connecting line 18 is disposed outside the heat dissipating cover 164, and the joint between the waterproof connecting line 18 and the plug is a quick locking head for self-locking and waterproofing. Specifically, the waterproof socket includes an incoming line socket 165 and an outgoing line socket 166, which are screwed and fixed at the reserved hole of the heat dissipation cover 164, and the waterproof connection line 18 is a quick locking head with self-locking and waterproof functions, so as to prevent liquid water from entering the control cavity 112 through the waterproof socket.

In another specific embodiment, the number of the PCB cavities is two, and the arrangement manner of each PCB cavity is the same as that of the single PCB cavity, that is, the two PCB cavities are both provided with the first groove 111 and the potting adhesive layer 13.

In this embodiment, the two PCB cavities have the same width and are arranged side by side along the length direction, or the two PCB cavities have the same length and are arranged side by side along the width direction. On this basis, the number of the control modules 16 is one, and the module control boards 161 of the control modules 16 are respectively connected with the PCBs 12 in the two PCB cavities.

It is emphasized once more that, the utility model provides a LED display module assembly 10 realizes LED display module assembly 10's waterproof sealing through setting up relevant waterproof construction at front and the back for LED display module assembly 10 after the assembly is accomplished has better outdoor waterproof performance.

The utility model also provides an LED box of adopting above-mentioned LED display module assembly 10.

In this LED box, the dorsal part of LED display module assembly 10 is equipped with adjustable fixed subassembly 17 in order to realize the installation at module mount 20, and the quantity of fixed subassembly 17 is two, and two fixed subassemblies 17 are central symmetry and set up the dorsal part at LED display module assembly 10.

In this embodiment, there are two fixing assemblies 17, which are installed on the back of the LED display module 10 in a central symmetrical arrangement, and the assembled LED display module 10 can be directly installed and locked on the module fixing frame 20 through the fixing assemblies 17 on the back. The module fixing frame 20 has the functions of positioning and fixing the display module 10, and the LED display module 10 and the module fixing frame 20 are independently subjected to standard modular design, so that the front and the back can be easily installed, and the front maintenance is facilitated.

The utility model also provides an LED display screen of adopting above-mentioned LED box.

The LED display screen comprises a plurality of LED boxes which are spliced, and the LED boxes are sequentially connected and serially connected into a master control box 30 through a waterproof connecting wire 18.

In this embodiment, the total control box 30 includes a total control box 31 and a total control board 32 disposed in the total control box 31, and a power supply input interface 33, a data input interface 34, a photosensitive interface 35 and a data and power supply output interface 36 are disposed outside the total control box 31. Specifically, the number of the data and power supply output interfaces 36 is two, the data and power supply output interfaces 36 are provided with the outlet socket 166, and the main control box 30 mainly realizes the functions of data reading, data transmission, dynamic synchronization of data switching and brightness adjustment.

In addition, the module fixing frame 20 is formed by standard processing of metal plates, and has good flatness and high dimensional precision; the module fixing frames 20 are quickly connected through outer hexagonal screws and press riveting nuts, and a plurality of LED box bodies are spliced into a screen body according to construction requirements. Besides, the LED display modules 10 are sequentially connected in series end to end, wiring is reduced, installation splicing and maintenance are easy, and installation construction efficiency is improved.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

It is right above the utility model provides a LED display screen, LED box and LED display module group thereof have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a LED display module assembly (10), its characterized in that, including module casing (11) that is equipped with the PCB board cavity, the inside week side of PCB board cavity is equipped with first recess (111), be equipped with PCB board (12) in the PCB board cavity, the surface of PCB board (12) is equipped with outside convex LED lamp pearl (121), and potting adhesive layer (13) parcel covers the surface of PCB board (12) and the bottom of LED lamp pearl (121) is in order to realize waterproof sealing, week side of potting adhesive layer (13) is in first recess (111) with module casing (11) laminating is in order to realize waterproof sealing.

2. The LED display module (10) according to claim 1, further comprising a cover (14) disposed outside the potting adhesive layer (13) to seal the cavity of the PCB, wherein the cover (14) is provided with a hole for the LED lamp bead (121) to penetrate through, and the cover (14) is fixedly connected to the module housing (11).

3. The LED display module (10) according to claim 1, wherein a side of the module housing (11) away from the PCB cavity is provided with a control cavity (112) for arranging a control module (16), and the control module (16) is connected with the PCB (12).

4. The LED display module (10) of claim 3, wherein the control module (16) comprises a module control board (161) connected to the back side of the PCB (12) and a heat dissipation cover (164) for fixing the module control board (161), wherein a power source (162) is fixedly connected to the heat dissipation cover (164), and a heat conduction sheet (163) is disposed between the power source (162) and the heat dissipation cover (164).

5. The LED display module (10) according to claim 4, wherein the heat dissipation cover (164) closes the control cavity (112), and a sealing gasket (15) hermetically connected with the control cavity (112) is arranged on the periphery of the heat dissipation cover (164).

6. The LED display module (10) according to claim 5, wherein two layers of second grooves (113) for the gasket (15) to compress and seal are formed around the end of the control cavity (112) attached to the gasket (15).

7. The LED display module (10) of claim 6, wherein the outer side of the heat dissipation cover (164) is provided with an incoming socket (165) and an outgoing socket (166) for connecting with a master control box (30) through a waterproof connection line (18), and the connection between the waterproof connection line (18) and the incoming socket (165) or the outgoing socket (166) is a quick locking head for realizing self-locking and waterproofing.

8. The LED display module (10) according to any one of claims 1 to 7, wherein the number of the PCB cavities is two, two PCB cavities are respectively provided with the first groove (111) and the potting adhesive layer (13), and the two PCB cavities have the same width and are arranged side by side along the length direction or have the same length and are arranged side by side along the width direction.

9. An LED box, characterized in that, includes the LED display module (10) of any claim 1 to 8, the back side of the LED display module (10) is provided with adjustable fixing components (17) to realize the installation on the module fixing frame (20), the number of the fixing components (17) is two, and the two fixing components (17) are arranged on the back side of the LED display module (10) in a central symmetry manner.

10. The utility model provides a LED display screen, its characterized in that includes a plurality of LED boxes of claim 9, and is a plurality of the LED box concatenation, it is a plurality of the LED box connects gradually and establishes ties through waterproof connecting wire (18) and inserts master control case (30), master control case (30) are including master control case (31) and locate master control board (32) in master control case (31), master control case (31) outside is equipped with power supply input interface (33), data input interface (34), photosensitive interface (35) and data and power supply output interface (36).