CN218273888U

CN218273888U - LED display device

Info

Publication number: CN218273888U
Application number: CN202222398814.8U
Authority: CN
Inventors: 龚杰; 孙雪超; 刘明
Original assignee: Shenzhen Leyard Optoelectronic Co Ltd
Current assignee: Shenzhen Leyard Optoelectronic Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-01-10
Anticipated expiration: 2032-09-08

Abstract

The utility model provides a LED display device, include: the box body is provided with a mounting bulge on the front surface, and the mounting bulge is provided with a wire passing hole; the display module comprises a lamp panel module and a rear shell arranged at the rear part of the lamp panel module, wherein the rear shell is provided with an avoidance hole for avoiding the mounting protrusion; the sealing washer, the setting is between the pore wall of dodging the hole and the bellied lateral wall of installation, the sealing washer includes along the axial that dodges the hole first annular connecting portion that connect gradually, first annular intermediate part and second annular connecting portion, the pore wall protrusion setting in hole is dodged along the radial orientation of dodging the hole to first annular intermediate part to make and enclose into the deformation space between first annular connecting portion, second annular connecting portion and the first annular intermediate part, first annular intermediate part and the pore wall butt cooperation of dodging the hole. The problem of the sealing washer among the prior art leads to the skew former mounted position on the box of display module assembly is solved.

Description

LED display device

Technical Field

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

Background

An LED display device is a flat panel display for displaying various information such as characters, images, video, and video signals. The LED display device comprises a box body and a display module, wherein the display module is arranged on the front side of the box body.

The sealing ring in the related art is arranged on the front side of the box body and is abutted against the rear side of the display module. Since the seal ring in the related art performs sealing by a method of generating a compression amount (i.e., a size reduced by being compressed in a compression direction) by being pressed. And the sealing effect is better when the extrusion force that the sealing washer received is big more, the compressive capacity that produces is big more, for realizing better sealed effect, the sealing washer that sets up between display module assembly and box receives great extrusion force. Because there is the resilience force in the sealing washer, and the extrusion force that the sealing washer received is big more, and the resilience force of production is big more, can lead to the display module assembly skew former mounted position on the box under the effect of sealing washer resilience force for display module assembly display screen is unusual or there is water to get into the box.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a LED display device to solve the problem that the sealing ring in the related art leads to the display module assembly to deviate from the original mounting position on the box.

In order to achieve the above object, the present invention provides a LED display device, including: the box body is provided with a mounting bulge on the front surface, and the mounting bulge is provided with a wire passing hole which penetrates through the front part of the box body in the front-back direction of the box body; the display module comprises a lamp panel module and a rear shell arranged at the rear part of the lamp panel module, the rear shell is arranged at the front part of the box body, a first connector is arranged on the lamp panel module and is positioned in the wire passing hole, and a avoiding hole for avoiding the installation bulge is formed in the rear shell; the sealing washer, the setting is between the pore wall of dodging the hole and the bellied lateral wall of installation, the sealing washer includes the first annular connecting portion that connect gradually along the axial of dodging the hole, first annular intermediate part and second annular connecting portion, first annular connecting portion and second annular connecting portion all are connected on the bellied lateral wall of installation, the pore wall protrusion setting in hole is dodged along the radial orientation of dodging the hole to first annular intermediate part, so that first annular connecting portion, enclose into deformation space between second annular connecting portion and the first annular intermediate part, first annular intermediate part with dodge the pore wall butt cooperation in hole.

Furthermore, the middle part of the first annular middle part is in butt fit with the hole wall of the avoiding hole, the thickness of the joint of the first annular middle part and the first annular connecting part is larger than that of the middle part of the first annular middle part, and the thickness of the joint of the first annular middle part and the second annular connecting part is larger than that of the middle part of the first annular middle part.

Further, the thickness of the first annular intermediate portion becomes gradually larger from the intermediate portion thereof to the junction of the first annular intermediate portion and the first annular connecting portion, and the thickness of the first annular intermediate portion becomes gradually larger from the intermediate portion thereof to the junction of the first annular intermediate portion and the second annular connecting portion.

Furthermore, a first mounting ring groove and a second mounting ring groove are formed in the outer side wall of the mounting protrusion, the first mounting ring groove and the second mounting ring groove are arranged at intervals along the axis direction of the avoiding hole, the first annular connecting portion is mounted in the first mounting ring groove, and the second annular connecting portion is mounted in the second mounting ring groove.

Further, first annular connecting portion and first installation ring groove interference fit, second annular connecting portion and second installation ring groove interference fit.

Further, the shape of the cross section of the first annular middle part in the direction perpendicular to the plane of the inner hole of the first annular middle part comprises an n shape or a v shape, and/or the sealing ring further comprises a second annular middle part, two ends of the second annular middle part are connected to the first annular connecting part and the second annular connecting part, and the cross section of the first annular middle part and the cross section of the second annular middle part in the direction perpendicular to the plane of the inner hole of the first annular middle part are in a closed ring shape.

Further, the cross section of the first annular connecting part and/or the second annular connecting part in the direction perpendicular to the plane of the inner hole of the first annular connecting part and/or the second annular connecting part is rectangular or trapezoidal or oval or triangular.

Further, the first annular connecting portion and a part of the first annular intermediate portion are symmetrically disposed with respect to the second annular connecting portion and another part of the first annular intermediate portion.

Furthermore, a circuit board is arranged in the box body, a second connector which is in plug-in fit with the first connector is arranged on the circuit board, and the second connector is positioned in the wire passing hole.

Further, the box body comprises a frame and a power supply box connected in the frame, the rear shell is arranged at the front part of the frame, the mounting protrusion is arranged on the front surface of the power supply box, and the wire passing hole penetrates through the front part of the power supply box in the front-back direction of the box body.

Use the technical scheme of the utility model, LED display device includes: box, display module assembly and sealing washer. The front surface of the box body is provided with a mounting protrusion, the mounting protrusion is provided with a wire passing hole, and the wire passing hole penetrates through the front part of the box body in the front-back direction of the box body. The arrangement of the wire passing hole enables the components in the box body to be in plug fit with the display module. The display module assembly includes lamp plate module and sets up the backshell at lamp plate module rear portion. The rear shell is arranged at the front part of the box body. Be provided with first connector on the lamp plate module, first connector is located the line hole for first connector position can connect with the component in the box and insert the cooperation. The rear shell is provided with an avoidance hole for avoiding the mounting protrusion, so that the mounting protrusion can extend into the avoidance hole. The sealing washer sets up between the pore wall of dodging the hole and the bellied lateral wall of installation, and the resilience force is applyed to the pore wall of dodging the hole of display module assembly to the sealing washer, because the direction of the resilience force of applying is close to the installation direction on perpendicular to display module assembly installs the box, has reduced the former mounted position that makes display module assembly follow on the box and has taken place skew possibility. The sealing washer includes along dodging the first annular connecting portion, first annular intermediate part and the second annular connecting portion that the axial in hole connected gradually, and first annular connecting portion and second annular connecting portion all connect on the bellied lateral wall of installation, and the hole wall protrusion setting in hole is dodged along the radial orientation in hole to first annular connecting portion, second annular connecting portion and first annular intermediate part enclose into the deformation space between the messenger. The first annular middle part is in butt fit with the hole wall of the avoiding hole, so that water outside the LED display device cannot enter the box body from the avoiding hole. The setting in deformation space makes the sealing washer reduce the resilience force when guaranteeing the compression volume (the compression direction is compressed and the size that reduces promptly), has both guaranteed the waterproof sealing performance of sealing washer and has further reduced because the resilience force is too big leads to the skew possibility of former mounted position on the box of display module assembly again. Therefore, the technical scheme of this application has solved the sealing washer among the correlation technique effectively and has leaded to the former mounted position's of display module assembly skew on the box problem. And the problem that the display module is propped against to be bent and deformed due to overlarge resilience force is further solved.

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 an embodiment of an LED display device according to the present invention;

FIG. 2 shows a top view of the LED display device of FIG. 1;

FIG. 3 showsbase:Sub>A cross-sectional view along A-A of the LED display device of FIG. 2;

FIG. 4 shows a partial enlarged view at C of the LED display device of FIG. 3;

FIG. 5 shows a cross-sectional view in the direction B-B of the LED display device of FIG. 2;

FIG. 6 shows a partial enlarged view of the LED display device of FIG. 5 at D;

fig. 7 is a schematic perspective view illustrating a display module of the LED display device of fig. 1.

Wherein the figures include the following reference numerals:

10. a box body; 11. mounting a boss; 12. a wire passing hole; 13. a first mounting ring groove; 14. a second mounting ring groove; 15. a frame; 16. a power supply box;

20. a display module; 21. a lamp panel module; 22. a rear housing; 23. a first connector; 24. avoiding holes;

30. a seal ring; 31. a first annular connecting portion; 32. a second annular connecting portion; 33. a first annular middle portion; 34. a deformation space.

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 in the present invention, all other embodiments obtained by a person skilled in the art without 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: the display device comprises a box body 10, a display module 20 and a sealing ring 30. The front surface of the box body 10 is provided with a mounting protrusion 11, the mounting protrusion 11 is provided with a wire passing hole 12, and the wire passing hole 12 penetrates through the front part of the box body 10 in the front-rear direction of the box body 10. The display module 20 includes a lamp panel module 21 and a rear case 22 disposed at the rear of the lamp panel module 21. The rear case 22 is provided at the front of the cabinet 10. Be provided with first connector 23 on lamp plate module 21, first connector 23 is located wire passing hole 12. The rear case 22 is provided with an escape hole 24 for escaping the mounting protrusion 11. The seal ring 30 is disposed between the wall of the relief hole 24 and the outer side wall of the mounting boss 11. The sealing ring 30 includes a first annular connecting portion 31, a first annular intermediate portion 33 and a second annular connecting portion 32 that are sequentially connected along the axial direction of the avoiding hole 24, the first annular connecting portion 31 and the second annular connecting portion 32 are both connected on the outer side wall of the mounting protrusion 11, and the first annular intermediate portion 33 is protruded toward the hole wall of the avoiding hole 24 along the radial direction of the avoiding hole 24, so that a deformation space 34 is enclosed among the first annular connecting portion 31, the second annular connecting portion 32 and the first annular intermediate portion 33. The first annular intermediate portion 33 is in abutting engagement with the hole wall of the relief hole 24.

By applying the technical solution of the embodiment, the through hole 12 enables the components in the box 10 to be inserted and matched with the display module 20. The display module 20 includes a lamp panel module 21 and a rear case 22 disposed at the rear of the lamp panel module 21. The rear case 22 is provided at the front of the cabinet 10. Be provided with first connector 23 on lamp plate module 21, first connector 23 is located wire passing hole 12 for 23 positions of first connector can be inserted with the part in the box 10 and connect the cooperation. The rear shell 22 is provided with an avoiding hole 24 for avoiding the mounting protrusion 11, so that the mounting protrusion 11 can extend into the avoiding hole 24. The sealing ring 30 is arranged between the hole wall of the avoiding hole 24 and the outer side wall of the mounting protrusion 11, the sealing ring 30 applies resilience to the hole wall of the avoiding hole 24 of the display module 20, and the direction of the applied resilience is close to the mounting direction perpendicular to the mounting direction of the display module 20 on the box body 10, so that the possibility that the display module 20 deviates from the original mounting position on the box body 10 is reduced. The sealing ring 30 includes a first annular connecting portion 31, a first annular intermediate portion 33 and a second annular connecting portion 32 that are sequentially connected along the axial direction of the avoiding hole 24, the first annular connecting portion 31 and the second annular connecting portion 32 are both connected on the outer side wall of the mounting protrusion 11, and the first annular intermediate portion 33 is protruded toward the hole wall of the avoiding hole 24 along the radial direction of the avoiding hole 24, so that a deformation space 34 is enclosed among the first annular connecting portion 31, the second annular connecting portion 32 and the first annular intermediate portion 33. The first annular intermediate portion 33 is in abutting engagement with the hole wall of the avoiding hole 24, so that water outside the LED display device cannot enter the case 10 through the avoiding hole 24. The deformation space 34 is provided to reduce the resilience of the sealing ring 30 while ensuring the compression amount (i.e. the size reduced by the compression in the compression direction), so as to ensure the waterproof sealing performance of the sealing ring 30 and further reduce the possibility of the display module 20 deviating from the original installation position on the box body 10 due to the excessive resilience. Therefore, the technical scheme of this application has solved the sealing washer among the correlation technique effectively and has leaded to the former mounted position's of display module assembly skew on the box problem. And the problem that the display module is propped against to be bent and deformed due to overlarge resilience force is further solved.

It should be noted that, the force applied to the sealing ring 30 by the hole wall of the avoiding hole 24 of the display module 20 and the outer side wall of the mounting protrusion 11 of the box 10 is a pressing force, the sealing ring 30 generates a compression amount due to the pressing force, and the sealing ring 30 is made of a soft material, so that the sealing ring 30 generates a resilience force returning to its original shape when the compression amount exists. The force applied by the sealing ring 30 to the hole wall of the avoiding hole 24 of the display module 20 and the outer side wall of the mounting protrusion 11 of the box body 10 is resilience, and the direction of the resilience is along the circumferential direction at the butt joint of the hole wall of the avoiding hole 24 and away from the axis direction of the avoiding hole 24.

It should be noted that the shape of the cross section of the first annular intermediate portion 33 in the direction perpendicular to the plane in which the inner hole is located includes an "n" shape or a "v" shape, and when the shape of the cross section of the first annular intermediate portion 33 in the direction perpendicular to the plane in which the inner hole is located includes an "n" shape or a "v" shape. The shape of the cross section of the first annular middle portion 33 in the direction perpendicular to the plane of the inner hole thereof includes a first straight section and a second straight section which are arranged at an interval, and an arc section which connects the first straight section and the second straight section and faces one end of the hole wall of the avoidance hole 24, and the first straight section, the arc section and the second straight section are connected into the n shape. Or the shape of the cross section of the first annular middle part 33 in the direction perpendicular to the plane of the inner hole thereof includes a third straight section and a fourth straight section arranged at an included angle, the included angle portion of the first straight section and the second straight section faces the hole wall of the avoidance hole 24, and the third straight section and the fourth straight section are connected into the v shape.

The sealing ring further comprises a second annular middle part, two ends of the second annular middle part are connected to the first annular connecting part and the second annular connecting part, and the cross sections of the first annular middle part and the second annular middle part in the direction perpendicular to the plane where the inner hole is located are in a closed annular shape.

As shown in fig. 4 and 6, an intermediate portion of the first annular intermediate portion 33 is in abutting engagement with a bore wall of the relief bore 24, a thickness of a joint of the first annular intermediate portion 33 and the first annular connecting portion 31 is larger than a thickness of an intermediate portion of the first annular intermediate portion 33, and a thickness of a joint of the first annular intermediate portion 33 and the second annular connecting portion 32 is larger than a thickness of an intermediate portion of the first annular intermediate portion 33. The thickness of the joint between the first annular intermediate portion 33 and the first annular connecting portion 31 and the thickness of the joint between the first annular intermediate portion 33 and the second annular connecting portion 32 are relatively thick, so that the structural strength of the seal ring 30 can be ensured, the two end portions of the seal ring 30 located at the first annular intermediate portion 33 can generate relatively large resilience, and the sealing performance of the seal ring 30 is ensured. The lower thickness of the middle portion of the first annular middle portion 33 can reduce the resilience force applied to the display module 20 by the middle portion of the seal ring 30 located in the first annular middle portion 33, and avoid the display module 20 deviating from the original installation position on the box body 10 due to the excessively large resilience force. Thus, the waterproof sealing performance of the sealing ring 30 is ensured, and the situation that the display module 20 deviates from the original installation position of the display module 20 on the box body 10 due to overlarge resilience force is further avoided.

As shown in fig. 4 and 6, the thickness of the first annular intermediate portion 33 gradually increases from the intermediate portion thereof to the junction between the first annular intermediate portion 33 and the first annular connecting portion 31, and the thickness of the first annular intermediate portion 33 gradually increases from the intermediate portion thereof to the junction between the first annular intermediate portion 33 and the second annular connecting portion 32. Make sealing washer 30 under the prerequisite of guaranteeing sealing performance like this, along the compression volume of the circumference of sealing washer 30 unanimous, avoided the inconsistent problem of the local compression volume of sealing washer 30, guaranteed that sealing washer 30 is unanimous to the resilience force that display module assembly 20 applyed along its circumference. The waterproof sealing performance of the sealing ring 30 is further ensured, and the problem of water leakage or deviation of the display module 20 from the original installation position of the display module 20 on the box body 10 due to inconsistent resilience force locally received by the display module 20 is further avoided.

In addition, the stress of the first annular middle part 33 is more uniform, stress concentration (the phenomenon that the stress in an object is locally increased) caused by sudden thickness reduction is avoided, fatigue cracks are reduced, the service life of the sealing ring 30 is prolonged, and the production and the processing are convenient.

As shown in fig. 4 and 6, the outer side wall of the mounting projection 11 is provided with a first mounting ring groove 13 and a second mounting ring groove 14. The first and second mounting

ring grooves

13, 14 are arranged at intervals in the axial direction of the avoiding hole 24 so that the intermediate portion of the first annular intermediate portion 33 can be in abutting engagement with the hole wall of the avoiding hole 24. And the spacing arrangement of the first and second mounting

ring grooves

13, 14 enables a deformation space 34 to be enclosed between the first and second annular connecting

portions

31, 32 and the first annular intermediate portion 33. The first annular connecting portion 31 is installed in the first installation ring groove 13, and the second annular connecting portion 32 is installed in the second installation ring groove 14. The first ring-shaped mounting groove 13 facilitates the mounting of the first ring-shaped connecting portion 31, and the second ring-shaped mounting groove 14 facilitates the mounting of the second ring-shaped connecting portion 32.

As shown in fig. 4 and 6, the first annular connecting portion 31 is interference-fitted with the first mounting ring groove 13, and the second annular connecting portion 32 is interference-fitted with the second mounting ring groove 14. So that the first annular connecting portion 31 can be fixed in the first mounting ring groove 13 and the second annular connecting portion 32 can be fixed in the second mounting ring groove 14. In an embodiment not shown in the drawings, the first annular connecting portion and the first mounting ring groove are bonded by using a glue layer, and the first annular connecting portion and the first mounting ring groove are bonded by using a glue layer.

As shown in fig. 4 and 6, the shape of the cross section of the first annular intermediate portion 33 in the direction perpendicular to the plane in which the inner hole thereof is located includes an "n" shape or a "v" shape. The sealing ring further comprises a second annular middle part, two ends of the second annular middle part are connected to the first annular connecting part and the second annular connecting part, and the cross sections of the first annular middle part and the second annular middle part in the direction perpendicular to the plane of the inner hole of the first annular middle part are in a closed ring shape. In the present embodiment, the first annular intermediate portion 33 has an "n" -shaped cross section in a direction perpendicular to the plane of the inner hole thereof. In the embodiment not shown in the drawings, the first annular middle portion has a v-shaped cross section in a direction perpendicular to a plane of the inner hole, or the seal ring further includes a second annular middle portion having both ends connected to the first annular connecting portion and the second annular connecting portion, and the cross section of the first annular middle portion and the second annular middle portion in a direction perpendicular to a plane of the inner hole of the first annular middle portion has a closed annular shape.

As shown in fig. 4 and 6, the cross-sectional shapes of the first and second annular connecting

portions

31 and 32 in the direction perpendicular to the plane in which the inner hole is located include a rectangle or a trapezoid or an ellipse or a triangle. In the present embodiment, the cross-section of the first annular connecting portion 31 and the second annular connecting portion 32 in the direction perpendicular to the plane in which the inner hole is located has a rectangular shape. Due to the large surface area of the rectangle, a sufficient contact area between the first annular connecting portion 31 and the first mounting ring groove 13 and a sufficient contact area between the second annular connecting portion 32 and the second mounting ring groove 14 are ensured. Thus, the first annular connecting part 31 is uniformly stressed and stably installed in the first installation ring groove 13, and the second annular connecting part 32 is uniformly stressed and stably installed in the second installation ring groove 14.

In the embodiment not shown in the figures, the first annular connecting portion and the second annular connecting portion have a trapezoidal or elliptical or triangular cross section in a direction perpendicular to the plane of the inner hole thereof; the cross section of the first annular connecting part or the second annular connecting part in the direction perpendicular to the plane of the inner hole of the first annular connecting part or the second annular connecting part is rectangular, trapezoidal, elliptical or triangular.

As shown in fig. 4 and 6, the first annular connecting portion 31 and a part of the first annular intermediate portion 33 are disposed symmetrically with respect to the second annular connecting portion 32 and another part of the first annular intermediate portion 33. Like this, make the resilience force that sealing washer 30 was applyed to the pore wall of dodging hole 24 even for the resilience force that sealing washer 30 that display module assembly 20 received was applyed is along the circumference evenly distributed who dodges hole 24, has avoided taking off display module assembly 20 top from box 10 or to show the top deformation and produce and leak, perhaps lets the module crooked and lead to the display screen to have the unusual condition. The directions of the resilient forces applied to the display module 20 by the seal ring 30 are symmetrically arranged so as to be more perpendicular to the mounting direction of the display module 20 to the housing 10. In addition, the seal ring 30 can be directly mounted in the first mounting ring groove 13 or the second mounting ring groove without distinguishing the first annular connecting part 31 and the second annular connecting part 32 during mounting, so that the mounting is more convenient.

As shown in fig. 1 to 7, a circuit board is disposed in the housing 10, and a second connector is disposed on the circuit board and is inserted and matched with the first connector 23, and the second connector is disposed in the wire passing hole 12. In this way, the second connector located in the wire passage hole 12 can be mated with the first connector 23 also located in the wire passage hole 12 to provide power and signal connections. In addition, the sealing ring 30 is disposed between the hole wall of the avoiding hole 24 of the display module 20 and the outer side wall of the mounting protrusion 11 of the box body 10, so that water outside the display module 20 cannot enter the box body 10, and water proofing of the first connector 23, the circuit board in the box body 10 and the second connector in the box body 10 is realized.

As shown in fig. 3 to 6, the case 10 includes a frame 15 and a power supply box 16 connected within the frame 15, a rear case 22 is provided at a front portion of the frame 15, a mounting boss 11 is provided on a front surface of the power supply box 16, and a wire passing hole 12 penetrates through the front portion of the power supply box 16 in a front-rear direction of the case 10. Thus, the components in the power supply box 16 can be in plug fit with the display module 20, and the sealing ring 30 is arranged between the hole wall of the avoiding hole 24 of the display module 20 and the outer side wall of the mounting protrusion 11 of the box body 10, so that water outside the display module 20 cannot enter the power supply box 16, and the water prevention of the components in the power supply box 16 is realized.

In this embodiment, the case body 10 is one, the display module assemblies 20 and the sealing rings 30 are two, the two display module assemblies 20 are spliced on the front side of the case body 10 through the magnetic attraction structure, and each sealing ring 30 is sealed and corresponds to the inside of the wire passing hole 12. Thus, the intermediate portion of the first annular intermediate portion 33 of each seal ring 30 is in abutting engagement with the hole wall of the escape hole 24, so that water outside the LED display device cannot enter the case 10 from the escape hole 24. The deformation space 34 is provided to reduce the resilience of the sealing ring 30 while ensuring the compression amount (i.e. the size reduced by the compression in the compression direction), so as to ensure the waterproof sealing performance of the sealing ring 30 and further reduce the original installation position of each display module 20 deviated from the box body 10 due to the overlarge resilience. Therefore, the problem of bright lines or dark lines generated between the display modules is avoided.

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:

the refrigerator comprises a refrigerator body (10), wherein a mounting bulge (11) is arranged on the front surface of the refrigerator body (10), a wire passing hole (12) is formed in the mounting bulge (11), and the wire passing hole (12) penetrates through the front part of the refrigerator body (10) in the front-back direction of the refrigerator body (10);

the display module (20) comprises a lamp panel module (21) and a rear shell (22) arranged at the rear part of the lamp panel module (21), the rear shell (22) is arranged at the front part of the box body (10), a first connector (23) is arranged on the lamp panel module (21), the first connector (23) is positioned in the wire passing hole (12), and a avoiding hole (24) for avoiding the installation bulge (11) is arranged on the rear shell (22);

sealing washer (30), set up and be in dodge the pore wall of hole (24) with between the lateral wall of installation arch (11), sealing washer (30) are including following first annular connecting portion (31), first annular intermediate part (33) and second annular connecting portion (32) that the axial of dodging hole (24) connected gradually, first annular connecting portion (31) with second annular connecting portion (32) all connect on the lateral wall of installation arch (11), first annular intermediate part (33) are followed dodge the radial orientation of hole (24) dodge the convex setting of pore wall of hole (24), so that first annular connecting portion (31), second annular connecting portion (32) reach enclose into deformation space (34) between first annular intermediate part (33), first annular intermediate part (33) with dodge the pore wall butt cooperation of hole (24).

2. The LED display device according to claim 1, wherein an intermediate portion of the first annular intermediate portion (33) is in abutting engagement with a hole wall of the avoiding hole (24), a thickness of a junction of the first annular intermediate portion (33) and the first annular connecting portion (31) is greater than a thickness of an intermediate portion of the first annular intermediate portion (33), and a thickness of a junction of the first annular intermediate portion (33) and the second annular connecting portion (32) is greater than a thickness of an intermediate portion of the first annular intermediate portion (33).

3. The LED display device according to claim 2, wherein the thickness of the first annular intermediate portion (33) gradually increases from the intermediate portion thereof to the junction of the first annular intermediate portion (33) and the first annular connecting portion (31), and the thickness of the first annular intermediate portion (33) gradually increases from the intermediate portion thereof to the junction of the first annular intermediate portion (33) and the second annular connecting portion (32).

4. The LED display device according to any one of claims 1 to 3, wherein a first mounting ring groove (13) and a second mounting ring groove (14) are provided on an outer side wall of the mounting protrusion (11), the first mounting ring groove (13) and the second mounting ring groove (14) are arranged at intervals along an axial direction of the avoiding hole (24), the first annular connecting portion (31) is installed in the first mounting ring groove (13), and the second annular connecting portion (32) is installed in the second mounting ring groove (14).

5. LED display device according to claim 4, characterized in that the first annular connection portion (31) is an interference fit with the first mounting ring groove (13) and the second annular connection portion (32) is an interference fit with the second mounting ring groove (14).

6. LED display device according to any of claims 1 to 3, characterised in that the shape of the cross-section of the first annular intermediate portion (33) in a direction perpendicular to the plane of its inner hole comprises an "n" or "v" shape;

and/or, the sealing washer still includes second annular intermediate part, second annular intermediate part both ends connect in first annular connecting portion with second annular connecting portion, first annular intermediate part and second annular intermediate part are perpendicular to the shape of the cross-section in the planar direction in hole place of first annular intermediate part is closed annular.

7. LED display device according to any of claims 1 to 3, characterised in that the shape of the cross section of the first annular connection (31) and/or the second annular connection (32) in a direction perpendicular to the plane of its inner hole comprises a rectangle or a trapezoid or an ellipse or a triangle.

8. The LED display device according to any one of claims 1 to 3, wherein the first annular connection portion (31) and a part of the first annular intermediate portion (33) are symmetrically arranged with respect to the second annular connection portion (32) and another part of the first annular intermediate portion (33).

9. The LED display device according to any one of claims 1 to 3, wherein a circuit board is arranged in the case (10), and a second connector which is in plug-fit with the first connector (23) is arranged on the circuit board and is positioned in the wire passing hole (12).

10. The LED display device according to any one of claims 1 to 3, wherein the case (10) includes a frame (15) and a power supply box (16) connected within the frame (15), the rear case (22) is provided at a front portion of the frame (15), the mounting boss (11) is provided on a front surface of the power supply box (16), and the wire passing hole (12) penetrates the front portion of the power supply box (16) in a front-rear direction of the case (10).