CN217588347U

CN217588347U - LED display device

Info

Publication number: CN217588347U
Application number: CN202221279853.XU
Authority: CN
Inventors: 李炳锋; 游文涛
Original assignee: Shenzhen Leyard Optoelectronic Co Ltd
Current assignee: Shenzhen Leyard Optoelectronic Co Ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-10-14
Anticipated expiration: 2032-05-25

Abstract

The utility model provides a LED display device, include: a frame; the display assembly is arranged on the front side of the frame and comprises a rear shell, a lamp panel module and a power signal patch cord, the lamp panel module is arranged on the front side of the rear shell, the rear shell is provided with a first perforation, the first end of the power signal patch cord penetrates through the rear shell through the first perforation and is fixedly connected with the lamp panel module, and the power signal patch cord is in sealing fit with the first perforation; and the control box is arranged at the rear side of the frame, and a power signal socket is hermetically arranged on the side wall of the control box, wherein the second end of the power signal socket is in sealed splicing fit with the power signal socket. The technical scheme of this application has solved the relatively poor problem of LED display device's among the correlation technique waterproof effect effectively.

Description

LED display device

Technical Field

The utility model relates to a LED shows technical field, particularly, relates to a LED display device.

Background

In the related art, an LED display device includes a frame, a display assembly, and a control box. Display module sets up in the front side of frame, display module include the backshell and set up in the lamp plate module of backshell front side. The control box is arranged at the rear side of the frame, and a power supply part and a signal part are arranged in the control box. The LED display device further comprises a plug seat and a plug, the plug seat is arranged on the rear side of the lamp panel module, a first avoiding hole for avoiding the plug seat is formed in the rear shell, the plug seat is connected with the power supply piece and the signal piece, a second avoiding hole for avoiding the plug seat is formed in the control box corresponding to the first avoiding hole, and the power supply piece supplies power to the lamp panel module through plug connection of the plug seat and the plug seat so that the signal piece transmits signals to the lamp panel module.

The LED display device is used outdoors, the sealing structures are required to be arranged in the first avoiding hole and the second avoiding hole, and in order to avoid the plug socket and the plug, the areas of the first avoiding hole and the second avoiding hole are large, so that the sealing area is also large, and the waterproof effect is poor.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a LED display device to solve the problem of poor waterproof effect of the LED display device in the related art.

In order to achieve the above object, the present invention provides a LED display device, including: a frame; the display assembly is arranged on the front side of the frame and comprises a rear shell, a lamp panel module and a power signal patch cord, the lamp panel module is arranged on the front side of the rear shell, the rear shell is provided with a first perforation, a first end of the power signal patch cord penetrates through the rear shell through the first perforation and is fixedly connected with the lamp panel module, and the power signal patch cord is in sealing fit with the first perforation; and the control box is arranged at the rear side of the frame, a power signal socket is hermetically arranged on the side wall of the control box, and the second end of the power signal patch cord is in sealed plug-in fit with the power signal socket.

Furtherly, power signal patch cord includes first power cord, first signal line and waterproof jacket, and wherein, the first end of first power cord and the first end fixed connection of first signal line in lamp plate module, waterproof jacket wraps up at least on the part that first power cord and first signal line expose in the backshell.

Furthermore, the power signal patch cord further comprises a first sealing connecting seat sleeved outside the waterproof sleeve, and the first sealing connecting seat is connected to the first through hole.

Further, first sealing connection seat includes the connecting plate and sets up first seal cover and the second seal cover in the connecting plate both sides respectively, and first seal cover stretches into to the backshell in through first perforation.

Further, a convex part is arranged on the rear shell, and the first through hole is formed in the bottom of the convex part.

Furthermore, the power signal patch cord also comprises a shielding layer wrapped on the first signal wire, and the shielding layer separates the first signal wire from the first power wire; and/or the first signal line is a plurality of which are arranged in an overlapping way.

Furthermore, the power signal patch socket comprises a socket body part, a second power line and a second signal line, wherein the second power line and the second signal line are connected with the socket body part; pedestal portion wears to locate the power pin and the signal plug of first insulation base member including first insulation base member and interval ground, power pin passes through the second power cord and is connected with the power supply unit, signal plug passes through the second signal line and is connected with the signal unit, plug portion includes the power source and the signal interface of wearing to locate the insulation base member of second with interval ground of the insulation base member of second, power source connects in the lamp plate module through first power cord, signal interface connects in the lamp plate module wherein through first signal line, power source can insert ground with power pin and set up, signal interface can insert ground with signal plug and set up.

Further, the signal interface is an HDMI interface.

Furthermore, a second perforation for a second power line and a second signal line to pass through is arranged on the side wall of the control box, the power signal socket further comprises a second sealing connecting seat sleeved outside the socket body, and the second sealing connecting seat is connected to the second perforation.

Furthermore, the power signal socket also comprises a sealing cover flexibly connected with the second sealing connecting seat, and the sealing cover is provided with a sealing position covered on the mouth part of the socket body part and an opening position separated from the mouth part of the socket body part.

Use the technical scheme of the utility model, LED display device includes: frame, display module and control box. The display assembly is disposed at a front side of the frame. The display assembly comprises a rear shell, a lamp panel module and a power signal patch cord. The lamp panel module sets up in the backshell front side, and the backshell has first perforation, and the backshell is passed through first perforation to the first end of power signal patch cord and lamp panel module fixed connection, and power signal patch cord and first perforation seal fit. The control box is arranged at the rear side of the frame. The side wall of the control box is provided with a power signal socket in a sealing way. In this application, the second end of the power signal patch cord is sealingly mated with the power signal patch socket, as the power signal patch cord is sealingly mated with the first perforation. The power signal socket is arranged on the side wall of the control box in a sealing mode. Therefore, an independent closed space can be formed in the display assembly, an independent closed space can also be formed in the control box, the first perforation is mainly used for enabling wires (such as the first power wire and the first signal wire) of the power signal patch cord to penetrate through the rear shell, and compared with the first avoidance hole and the second avoidance hole in the related art, the area of the first perforation is smaller, the sealing area of the first perforation is smaller, and the sealing effect of the first perforation is easily ensured. On one hand, the waterproof area is small, the waterproof effect on the display assembly can be improved, and the problem that the LED display device in the related technology is poor in waterproof effect is solved; on the other hand prevents that the inside heat of display module and the inside heat of control box from flowing each other owing to form two mutually independent airtight spaces to make display module and control box all can carry out the independent heat dissipation, do not influence the display effect of lamp plate module.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a schematic perspective view of a rear viewing angle of an embodiment of an LED display device according to the present invention;

FIG. 2 shows a schematic enlarged view of a portion of the LED display device of FIG. 1 at A;

FIG. 3 is a partial schematic view showing the inner and outer portions of the LED display device of FIG. 1;

FIG. 4 shows a rear schematic view of a display assembly of the LED display device of FIG. 1;

FIG. 5 shows an enlarged partial schematic view at B of the display assembly of FIG. 4;

FIG. 6 shows a schematic perspective view of a power signal patch cord of the LED display device of FIG. 1;

FIG. 7 is a schematic cross-sectional view of the C-C direction of the power signal patch cord of FIG. 6;

FIG. 8 illustrates a perspective view of the plug portion of the power signal patch cord of FIG. 6;

FIG. 9 shows an exploded view of the plug portion of FIG. 8;

fig. 10 is a schematic perspective view of the sealing cover of the power signal receptacle of the LED display device of fig. 1 in a sealing position;

FIG. 11 is a schematic perspective view of the seal cover of the power signal receptacle of the LED display device of FIG. 1 in an open position;

FIG. 12 illustrates a front schematic view of the power signal patch socket of FIG. 11;

fig. 13 illustrates a side view schematic of the power signal patch receptacle of fig. 12.

Wherein the figures include the following reference numerals:

10. a frame; 20. a display component; 21. a rear housing; 211. a convex portion; 22. a lamp panel module; 30. a control box; 41. a power signal jack; 411. a seat body portion; 4111. a first insulating substrate; 4112. a power supply pin; 4113. a signal plug; 412. a second power line; 413. a second signal line; 414. a second sealing connection seat; 4141. connecting sheets; 4142. a third seal cartridge; 4143. a silica gel sheet; 415. a sealing cover; 42. a power signal patch cord; 421. a plug portion; 4211. a second insulating substrate; 4212. a power interface; 4213. a signal interface; 4214. a self-locking sleeve; 4215. a return spring; 422. a first power line; 423. a first signal line; 424. a waterproof jacket; 425. a first sealing connection seat; 4251. a connecting plate; 4252. a first seal cartridge; 4253. a second seal cartridge; 426. and a shielding layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the LED display device of the present embodiment includes: frame 10, display assembly 20 and control box 30. The display module 20 is disposed at the front side of the frame 10. Display assembly 20 includes backshell 21, lamp panel module 22 and power signal patch cord 42. Lamp panel module 22 sets up in backshell 21 front side, and backshell 21 has first perforation, and the first end of power signal patch cord 42 passes backshell 21 through first perforation and lamp panel module 22 fixed connection, and power signal patch cord 42 and the sealed cooperation of first perforation. The control box 30 is provided at the rear side of the frame 10. The side wall of the control box 30 is hermetically provided with a power signal socket 41. In this embodiment, the second end of the power signal patch cord 42 is sealingly plug-mated with the power signal patch receptacle 41, as the power signal patch cord 42 is sealingly mated with the first perforation.

With the solution of the present embodiment, the power signal socket 41 is hermetically disposed on the sidewall of the control box 30. In this way, an independent sealed space can be formed inside the display module 20, and an independent sealed space can also be formed inside the control box 30, and the wires (hereinafter, the first power wire 422 and the first signal wire 423) of the first perforation, which are mainly used for the power signal patch cord 42, can pass through the rear case 21. On one hand, the waterproof area is small, the waterproof effect on the display assembly 20 can be improved, and the problem that the LED display device in the related art is poor in waterproof effect is solved; on the other hand is owing to form two mutually independent airtight spaces, prevents that the inside heat of display module 20 and the inside heat of control box 30 from flowing each other, mutual noninterference between the heat to make display module 20 and control box 30 homoenergetic carry out the independent display effect who dispels the heat, do not influence lamp plate module 22. The display module 20 and the control box 30 are in flexible connection through the power signal patch cord 42, so that the vibration resistance and the stable display effect of the LED display device are improved.

It should be noted that the "sealing arrangement" in the case that the power signal connection socket 41 is hermetically arranged on the side wall of the control box 30 means that the power signal connection socket 41 is connected to the side wall of the control box 30 by means of sealant or injection molding, or the power signal connection socket 41 is connected to the side wall of the control box 30 by means of a sealing gasket (hereinafter, referred to as a second sealing connection socket).

As shown in fig. 3 to 7, the power signal patch cord 42 includes a first power cord 422, a first signal cord 423, and a waterproof jacket 424. Wherein, the first end of first power cord 422 and the first end fixed connection of first signal line 423 in lamp plate module 22, waterproof cover 424 wraps up at least on the part that first power cord 422 and first signal line 423 expose in backshell 21. In this way, the waterproof jacket 424 integrates the portions of the first power line 422 and the first signal line 423 exposed out of the rear shell 21, so that the structure is compact, and the first power line 422 and the first signal line 423 form an integrated wire, which is convenient for wiring. In addition, the waterproof cover 424 can protect the portions of the first power line 422 and the first signal line 423 exposed from the rear case 21, thereby achieving the waterproof purpose. The waterproof jacket 424 is preferably an integral wire molding layer.

As shown in fig. 4 to 6, the power signal patch cord 42 further includes a first sealing connection seat 425 sleeved outside the waterproof sleeve 424. The first sealing connection seat 425 is connected at the first penetration hole. First sealed connecting seat 425 can seal first perforation, guarantees the water-proof effects of first perforation department.

As shown in fig. 4 to 6, the first sealing connection seat 425 includes a connection plate 4251, and a first sealing sleeve 4252 and a second sealing sleeve 4253 respectively disposed at both sides of the connection plate 4251. The first sealing sleeve 4252 extends into the rear housing 21 through the first through hole. In this way, the first sealing sleeve 4252 can seal the first through hole to prevent water from entering into the rear shell 21, and the connecting plate 4251 is provided to fix the first sealing connection seat 425 on the rear shell 21. In this way, the first sealing connection seat 425 can play both a waterproof effect and a connection role.

Specifically, the rear shell 21 is provided with a first screw hole, the connecting plate 4251 is provided with a first through hole corresponding to the first screw hole, and the LED display device further includes a first screw member, and the first screw member passes through the first through hole and is fixed in the first screw hole, so as to fix the first sealing connection seat 425 on the rear shell 21.

As shown in fig. 4 and 5, the rear case 21 is provided with a convex portion 211, and the first through hole is provided at a bottom portion of the convex portion 211. Specifically, the convex portion 211 includes a convex surface and a connection surface, the convex surface and the surface of the rear case 21 are disposed at an interval, the connection surface is used for connecting the convex surface and the surface of the rear case 21, and the connection surface surrounds the convex surface circumferentially for a circle. The first through hole is arranged on the part of the connecting surface, which is positioned at the bottom of the convex table surface. Like this, first perforation can be sheltered from to convex part 211, and water can follow convex part 211 and slide rapidly, avoids appearing ponding in first perforation department.

As shown in fig. 6 and 7, the power signal patch cord 42 further includes a shield 426 that surrounds the first signal line 423, the shield 426 separating the first signal line 423 and the first power line 422. The shield layer 426 can shield power and signal crosstalk between the first signal line 423 and the first power line 422. The first signal line 423 is plural, and the plural first signal lines 423 are stacked. This allows the power signal patch cord 42 to be compact and facilitates the waterproof jacket 424 to be integrated with the portions of the first power cord 422 and the first signal cord 423 exposed from the rear housing 21. Preferably, the first signal lines 423 are two rows disposed one above the other. The shielding layer 426 is preferably tin foil.

Note that the above-described "wrapping" means that the shielding layer 426 wraps the first signal line 423 for one or more turns to wrap the first signal line 423 in the shielding layer 426.

In this embodiment, two rows of the first signal lines 423 are provided, two shielding layers 426 are provided, the two shielding layers 426 are wrapped outside the two rows of the first signal lines 423 in a one-to-one correspondence manner, and each row of the first signal lines 423 is flat.

Of course, in embodiments not shown in the figures, the power signal patch cord further includes a shield surrounding the first signal line, the shield separating the first signal line and the first power line. Or the first signal line is a plurality of which are arranged in an overlapping manner.

As shown in fig. 3 to 13, in order to facilitate the transmission of power and signals between the power signal patch socket 41 and the power signal patch cord 42, the power signal patch socket 41 includes a socket portion 411, and a second power cord 412 and a second signal cord 413 connected to the socket portion 411. The seat 411 is hermetically disposed on a sidewall of the control box 30, the second power line 412 is connected to a power supply unit in the control box 30, and the second signal line 413 is connected to a signal unit in the control box 30. The power signal patch cord 42 further includes a plug portion 421 sealingly mating with the housing portion 411, and a second end of the first power cord 422 and a second end of the first signal cord 423 are fixedly connected to the plug portion 421. The socket portion 411 includes a first insulating base 4111 and a power pin 4112 and a signal plug 4113 penetrating through the first insulating base 4111 at an interval, the power pin 4112 is connected to a power supply through a second power line 412, the signal plug 4113 is connected to a signal component through a second signal line 413, the plug portion 421 includes a second insulating base 4211 and a power interface 4212 and a signal interface 4213 penetrating through the second insulating base 4211 at an interval, the power interface 4212 is connected to the lamp panel module 22 through a first power line 422, the signal interface 4213 is connected to the lamp panel module 22 through a first signal line 423, the power interface 4212 is inserted into the power pin 4112, and the signal interface 4213 is inserted into the signal plug 4113.

As shown in fig. 8 and 9, the signal interface 4213 is an HDMI interface (high definition multimedia interface — which is an all digital video and audio transmission interface). The HDMI interface is arranged to realize power supply and signal shielding isolation without mutual crosstalk.

As shown in fig. 3 and 10 to 13, a second through hole for passing the second power line 412 and the second signal line 413 is formed in a side wall of the control box 30, the power signal connection socket 41 further includes a second sealing connection socket 414 sleeved outside the socket body 411, and the second sealing connection socket 414 is connected to the second through hole. In this way, the second sealing connection seat 414 can seal the second through hole, preventing water from entering into the control box 30.

Specifically, the second sealing connection seat 414 includes a connection piece 4141 and a third sealing sleeve 4142 disposed at one side of the connection piece 4141, and the third sealing sleeve 4142 extends into the control box 30 through the second through hole. The side wall of the control box 30 is provided with a second screw hole, the connecting piece 4141 is provided with a second through hole corresponding to the second screw hole, and the LED display device further includes a second screw member, the second screw member passes through the second through hole and is fixed in the second screw hole, so as to fix the second sealing connection seat 414 on the side wall of the control box 30. The attachment tab 4141 is provided to facilitate securing the second sealed attachment socket 414 to the side wall of the control box 30. In this way, the second sealing connection seat 414 can play both a waterproof effect and a connection role. The attachment piece 4141 is preferably a plastic piece.

Specifically, the second sealing connection seat 414 further includes a silicone sheet 4143 sleeved outside the first insulating base 4111, the silicone sheet 4143 is located on a side of the connection piece 4141 of the second sealing connection seat 414 away from the control box 30, and the silicone sheet 4143 is sealed between the self-locking sleeve 4214 and the connection piece 4141, so that the seat body portion 411 and the plug portion 421 can be in sealing insertion fit.

As shown in fig. 3 and 10 to 13, after the plug portion 421 is pulled out from the socket portion 411, the power signal socket 41 further includes a sealing cover 415 flexibly connected to the second sealing connection seat 414 in order to seal the mouth of the socket portion 411 and prevent water and dust from entering. The sealing cover 415 has a sealing position where it is covered on the mouth of the housing portion 411 and an open position where it is separated from the mouth of the housing portion 411.

The plug portion 421 further includes a self-locking sleeve 4214 rotatably sleeved outside the second insulation base 4211, a return spring 4215 is arranged between the self-locking sleeve 4214 and the second insulation base 4211, the return spring 4215 is arranged along the circumferential direction of the second insulation base 4211 and can apply circumferential elastic force to the self-locking sleeve 4214, the self-locking sleeve 4214 is sleeved outside the first insulation base 4111 and has a locking position locked with the first insulation base 4111 and an unlocking position enabling the self-locking sleeve 4214 to be separated from the first insulation base 4111, when the self-locking sleeve 4214 and the first insulation base 4111 are in the unlocking position, the plug portion 421 can be pulled out of the seat portion 411, and the LED display device is convenient to maintain.

Specifically, the return spring 4215 may be a torsion spring or a spring. A locking block with a first inclined surface is arranged in the self-locking sleeve 4214, and a locking groove with a second inclined surface is arranged at the front end of the first insulating base 4111. A locking block with a first inclined surface is arranged in the self-locking sleeve 4214, and a locking groove with a second inclined surface is arranged at the front end of the first insulating base 4111. In the process that the power interface 4212 is inserted into the power pin 4112 and the signal interface 4213 is inserted into the signal plug 4113, the self-locking sleeve 4214 is driven to rotate under the action of the first inclined surface and the second inclined surface, so that the locking block is clamped into the locking groove to realize self-locking, thereby playing a role in fixing the plug portion 421. When unlocking, the plug portion 421 can be pulled out by rotating the self-locking sleeve 4214 in the reverse direction.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED display device, comprising:

a frame (10);

the display assembly (20) is arranged on the front side of the frame (10), the display assembly (20) comprises a rear shell (21), a lamp panel module (22) and a power signal patch cord (42), the lamp panel module (22) is arranged on the front side of the rear shell (21), the rear shell (21) is provided with a first through hole, a first end of the power signal patch cord (42) penetrates through the rear shell (21) through the first through hole to be fixedly connected with the lamp panel module (22), and the power signal patch cord (42) is in sealing fit with the first through hole;

the control box (30) is arranged at the rear side of the frame (10), a power signal patch socket (41) is arranged on the side wall of the control box (30) in a sealing mode, and the second end of the power signal patch cord (42) is in sealing plug-in fit with the power signal patch socket (41).

2. The LED display device of claim 1,

the power signal patch cord (42) includes a first power cord (422), a first signal cord (423) and a waterproof jacket (424), wherein,

the first end of first power cord (422) and the first end fixed connection of first signal line (423) in lamp plate module (22), waterproof cover (424) are at least wrapped up in first power cord (422) and first signal line (423) expose in the part of backshell (21).

3. The LED display device according to claim 2, wherein the power signal patch cord (42) further comprises a first sealing connection seat (425) sleeved outside the waterproof sleeve (424), the first sealing connection seat (425) being connected at the first perforation.

4. The LED display device according to claim 3, wherein the first sealing connection seat (425) comprises a connection plate (4251) and a first sealing sleeve (4252) and a second sealing sleeve (4253) respectively arranged on two sides of the connection plate (4251), and the first sealing sleeve (4252) extends into the rear shell (21) through the first through hole.

5. The LED display device according to claim 1, wherein a convex portion (211) is provided on the rear case (21), and the first through hole is provided at a bottom portion of the convex portion (211).

6. The LED display device of claim 2, wherein the power signal patch cord (42) further comprises a shielding layer (426) wrapped around the first signal line (423), the shielding layer (426) separating the first signal line (423) and the first power line (422); and/or the first signal line (423) is a plurality of lines, and the first signal lines (423) are arranged in a stacked mode.

7. The LED display device of claim 2,

the power signal patch socket (41) comprises a socket body portion (411), and a second power line (412) and a second signal line (413) which are connected with the socket body portion (411), wherein the socket body portion (411) is arranged on the side wall of the control box (30) in a sealing mode, the second power line (412) is connected with a power supply part in the control box (30), the second signal line (413) is connected with a signal part in the control box (30), the power signal patch cord (42) further comprises a plug portion (421) which is in sealing plugging fit with the socket body portion (411), and a second end of the first power line (422) and a second end of the first signal line (423) are fixedly connected to the plug portion (421);

the base portion (411) comprises a first insulating base body (4111) and a power pin (4112) and a signal plug (4113) which are arranged at intervals in the first insulating base body (4111), the power pin (4112) is connected with the power supply part through the second power line (412), the signal plug (4113) is connected with the signal part through the second signal line (413),

plug portion (421) include second insulation base member (4211) and wear to locate at interval power source (4212) and signal interface (4213) of second insulation base member (4211), power source (4212) pass through first power cord (422) connect in lamp plate module (22), signal interface (4213) pass through first signal line (423) connect in lamp plate module (22)

Wherein the power interface (4212) is insertably arranged with the power pin (4112), and the signal interface (4213) is insertably arranged with the signal plug (4113).

8. The LED display device according to claim 7, wherein the signal interface (4213) is an HDMI interface.

9. The LED display device according to claim 7, wherein a second through hole is formed in a side wall of the control box (30) for passing the second power line (412) and the second signal line (413), the power signal connection socket (41) further comprises a second sealing connection socket (414) sleeved outside the socket body portion (411), and the second sealing connection socket (414) is connected to the second through hole.

10. The LED display device according to claim 9, wherein the power signal connection socket (41) further comprises a sealing cover (415) flexibly connected to the second sealing connection socket (414), the sealing cover (415) having a sealing position covering at the mouth of the socket portion (411) and an open position separated from the mouth of the socket portion (411).