Display module assembly and display device

Abstract

The invention provides a display module assembly and a display device. The display module assembly comprises a lamp panel; the rear shell is provided with a jack surrounding the outer side of the connecting plug, the jack comprises a first hole section and a second hole section which are communicated with each other, and the projection of the first hole section on the lamp panel is located in the projection of the second hole section on the lamp panel; the plug connector is in plug-in fit with the plug hole, the plug connector comprises a plug cylinder and a plug convex ring connected with the plug cylinder, and the plug convex ring protrudes out of the outer surface of the plug cylinder in the radial direction of the plug cylinder; the first elastic sealing ring is located between the insertion cylinder and the hole side wall of the first hole section, and the first elastic sealing ring is in sealing fit with the hole side wall of the first hole section; the second elastic sealing ring is located between the inserting convex ring and the hole side wall of the second hole section, and the second elastic sealing ring is in sealing fit with the hole side wall of the second hole section. According to the technical scheme, the problem that the service life of the display device is affected due to the fact that liquid or moisture easily enters the display device in the related technology is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display module assembly and a display device. Background Art

[0002] The display module is the core component of the display device. It is usually composed of a light board and a back shell. The light board is equipped with a plug connector for connecting to other display modules or controllers, and the back shell is equipped with a corresponding socket, which is located outside the plug connector.

[0003] However, when display devices are used outdoors for extended periods, particularly in rainy or humid areas, waterproofing of the display module becomes a significant issue. In related technologies, connectors and sockets are often weak points in waterproofing, allowing liquid or moisture to easily penetrate into the interior of the light panel through these connectors, causing circuit shorts, damage, or display errors in the display module, impacting the lifespan and stability of the display device.

[0004] Therefore, the display device in the related art is easily penetrated by liquid or moisture, which affects the service life of the display device. Summary of the Invention

[0005] The main purpose of the present invention is to provide a display module assembly and a display device to solve the problem in the related art that the display device is easily penetrated by liquid or moisture, which affects the service life of the display device.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a display module assembly is provided, comprising: a lamp board, on which a plug connector is provided; a rear shell, which is arranged on one side of the lamp board, and on which a socket is provided around the outside of the plug connector, the socket comprising a first hole segment and a second hole segment which are connected to each other, the first hole segment being located on a side of the second hole segment close to the lamp board, the projection of the first hole segment on the lamp board being located within the projection of the second hole segment on the lamp board, and the second hole segment passing through the surface of the rear shell away from the lamp board; a plug connector capable of being plugged into and matched with the socket connector, the plug connector comprising an insert sleeve and a plug convex ring connected to the insert sleeve, the plug convex ring The insert sleeve protrudes from the outer surface of the insert sleeve along the radial direction of the insert sleeve, and the insert sleeve can be inserted into the first hole section, and the plug-in convex ring can be inserted into the second hole section; the first elastic sealing ring is provided on the insert sleeve, and when the insert sleeve is inserted into the first hole section, the first elastic sealing ring is located between the insert sleeve and the hole side wall of the first hole section, and the first elastic sealing ring is sealed with the hole side wall of the first hole section; the second elastic sealing ring is provided on the plug-in convex ring, and when the plug-in convex ring is inserted into the second hole section, the second elastic sealing ring is located between the plug-in convex ring and the hole side wall of the second hole section, and the second elastic sealing ring is sealed with the hole side wall of the second hole section.

[0007] Furthermore, the first elastic sealing ring includes a first connecting ring body and a first sealing convex ring arranged on the outside of the first connecting ring body, the first connecting ring body is connected to the insert sleeve, and the first sealing convex ring is sealed with the side wall of the hole of the first hole section; and / or, the second elastic sealing ring includes a second connecting ring body and a second sealing convex ring arranged on the outside of the second connecting ring body, the second connecting ring body is connected to the plug-in convex ring, and the second sealing convex ring is sealed with the side wall of the hole of the second hole section.

[0008] Furthermore, the relationship between the distance L1 between two adjacent first sealing protrusion rings and the thickness T of each first sealing protrusion ring along the axial direction of the insert sleeve satisfies: 2.0≤L1 / T≤3.0.

[0009] Furthermore, the first elastic sealing ring includes a first connecting ring body and a first sealing convex ring arranged on the outside of the first connecting ring body. The first connecting ring body is connected to the insert sleeve, and the first sealing convex ring is sealed with the side wall of the first hole section. There are multiple first sealing convex rings arranged at intervals along the axial direction of the insert sleeve.

[0010] Furthermore, the second elastic sealing ring includes a second connecting ring body and a second sealing convex ring arranged on the outside of the second connecting ring body, the second connecting ring body is connected to the plug-in convex ring, and the second sealing convex ring is sealed with the side wall of the second hole section; there is one second sealing convex ring; or, there are multiple second sealing convex rings arranged at axial intervals along the insert, and the number of first sealing convex rings is greater than the number of second sealing convex rings.

[0011] Furthermore, a first mounting ring groove is provided on the circumferential surface of the plug-in convex ring, and the second elastic sealing ring is provided in the first mounting ring groove. A plurality of accommodating grooves are provided on the bottom wall of the first mounting ring groove and are spaced apart along the circumference of the plug-in convex ring.

[0012] Furthermore, the first elastic sealing ring includes a first connecting ring body and a first sealing convex ring arranged on the outside of the first connecting ring body, the first connecting ring body is connected to the insert sleeve, and the first sealing convex ring is sealed with the side wall of the hole of the first hole section; the relationship between the diameter D1 of the first sealing convex ring and the aperture D2 of the first hole section satisfies: 1.0mm≤D1-D2≤1.6mm; and / or, the second elastic sealing ring includes a second connecting ring body and a second sealing convex ring arranged on the outside of the second connecting ring body, the second connecting ring body is connected to the plug-in convex ring, and the second sealing convex ring is sealed with the side wall of the hole of the second hole section; the relationship between the diameter D3 of the second sealing convex ring and the aperture D4 of the second hole section satisfies: 1.0mm≤D3-D4≤1.6mm.

[0013] Furthermore, a flange and a retaining ring are provided on the back shell, the retaining ring is provided on the inner side of the first hole segment, the flange is connected between the retaining ring and the side wall of the hole of the first hole segment, the side wall of the hole of the first hole segment, the flange and the retaining ring form a slot, and the insert is inserted into the slot; and / or, the display module assembly also includes a sealing plate connected to the connector, the sealing plate is used to close the socket, and the connector or the sealing plate is fixedly connected to the back shell.

[0014] Furthermore, the connector is provided with an avoidance hole connected to the socket, the avoidance hole passes through the surface of the connector facing away from the light board, and a third elastic sealing ring is provided on the surface of the connector facing away from the light board. The third elastic sealing ring is arranged around the outside of the avoidance hole, and the end of the third elastic sealing ring protrudes from the surface of the connector facing away from the light board.

[0015] Furthermore, the third elastic sealing ring includes a third connecting ring body and a third sealing protrusion connected to the third connecting ring body. The third connecting ring body is connected to the plug-in component. The third sealing protrusion extends in a direction away from the light board. The end of the third sealing protrusion protrudes from the surface of the plug-in component away from the light board.

[0016] Furthermore, a second mounting ring groove and an avoidance ring groove are provided on the surface of the connector facing away from the light board, the second mounting ring groove is connected to the avoidance ring groove, the third connecting ring body is provided in the second mounting ring groove, the third sealing convex ring is at least partially located in the avoidance ring groove, and there is an avoidance gap between the groove side wall of the avoidance ring groove and the third sealing convex ring; and / or, the distance L2 at which the end of the third sealing convex ring protrudes from the surface of the connector facing away from the light board satisfies the following: 0.5mm≤L2≤0.8mm.

[0017] According to another aspect of the present invention, a display device is provided, including a display module assembly, wherein the display module assembly is the above-mentioned display module assembly.

[0018] According to another aspect of the present invention, a display device is provided, including a display module assembly and a power box. The display module assembly is the above-mentioned display module assembly, the connector is fixedly connected to the power box, the third elastic sealing ring is sealed with the surface of the power box, and the power box is provided with a connector hole connected to the avoidance hole.

[0019] Applying the technical solution of the present invention, a display module assembly includes: a light board, a rear shell, a connector, a first elastic sealing ring, and a second elastic sealing ring. The light board is provided with a connector. The rear shell is provided on one side of the light board and is provided with a socket surrounding the outer side of the connector. The socket includes a first hole segment and a second hole segment that are connected. The first hole segment is located on the side of the second hole segment closer to the light board. The projection of the first hole segment on the light board is located within the projection of the second hole segment on the light board. The second hole segment extends through the surface of the rear shell away from the light board. The connector is capable of plugging into the socket. The connector includes an insert sleeve and a plug-in protrusion connected to the insert sleeve. The plug-in protrusion protrudes from the outer surface of the insert sleeve in the radial direction of the insert sleeve. The insert sleeve can be inserted into the first hole segment, and the plug-in protrusion can be inserted into the second hole segment. The first elastic sealing ring is provided on the insert sleeve. When the insert sleeve is inserted into the first hole segment, the first elastic sealing ring is located between the insert sleeve and the side wall of the first hole segment, and the first elastic sealing ring is in sealing engagement with the side wall of the first hole segment. A second elastic sealing ring is disposed on the plug-in collar. When the plug-in collar is inserted into the second hole segment, the second elastic sealing ring is located between the plug-in collar and the sidewall of the second hole segment, and the second elastic sealing ring forms a sealing engagement with the sidewall of the second hole segment. Thus, the arrangement of the first and second hole segments, as well as the arrangement of the first and second elastic sealing rings, prevents liquid or moisture from entering the plug connector or light panel from between the jack and the connector, reducing the possibility of circuit short circuits, damage, or abnormal display in the display module assembly, thereby increasing the service life and stability of the display device. Furthermore, the plug-in engagement of the connector with the jack allows the user to choose whether to insert the connector into the jack based on actual waterproofing needs. The arrangement of the first and second hole segments, the insert sleeve inserted into the first hole segment, and the plug-in collar inserted into the second hole segment allows the jack and connector to be arranged in sections, thereby better utilizing the sealing properties of the first and second elastic sealing rings to form a double waterproof barrier and improve waterproofing reliability. Furthermore, the arrangement of the first hole segment, the second hole segment, the insert tube, and the plug-in convex ring can increase the contact area between the first elastic sealing ring and the second elastic sealing ring on the connector and the rear shell, thereby improving the stability of the mechanical connection when the connector is plugged into the socket. Furthermore, since the projection of the first hole segment on the lamp board is located within the projection of the second hole segment on the lamp board, the projection of the first elastic sealing ring on the lamp board is located within the projection of the second elastic sealing ring on the lamp board. Compared with the overlap of the projections of the first elastic sealing ring on the lamp board and the second elastic sealing ring on the lamp board, the technical solution of the present invention can increase the difficulty of liquid intrusion between the socket and the connector. When the liquid flows, it needs to change its flow direction in order to reach the first elastic sealing ring from the second elastic sealing ring, thereby further improving the waterproof effect. Therefore, the technical solution of the present application effectively solves the problem in the related art that the display device is easily penetrated by liquid or moisture, affecting the service life of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a display device according to the present invention is shown;

[0022] Figure 2 Shown Figure 1 A schematic cross-sectional view of a display module assembly of a display device;

[0023] Figure 3 Shown Figure 2 A partial enlarged view of point A of the display module assembly of the display device;

[0024] Figure 4 Shown Figure 2 A partial enlarged view of position B of the display module assembly of the display device;

[0025] Figure 5 Shown Figure 1 A schematic cross-sectional view of a connector in some embodiments of a display device;

[0026] Figure 6 Shown Figure 1 A schematic diagram of the exploded structure of a connector in some embodiments of the display device;

[0027] Figure 7 Shown Figure 1 Schematic cross-sectional views of connectors in other embodiments of the display device;

[0028] Figure 8 Shown Figure 1 A schematic diagram of a partially exploded structure of a connector of a display device;

[0029] Figure 9 Shown Figure 1 A partial cross-sectional schematic diagram of a connector of a display device.

[0030] The above drawings include the following reference numerals:

[0031] 10. Light board; 11. Plug connector;

[0032] 20. Back shell; 21. Jack; 211. First hole section; 212. Second hole section; 22. Flanged edge; 23. Retaining ring; 24. Slot;

[0033] 30. Connector; 31. Insertion sleeve; 32. Insertion protrusion; 321. Positioning protrusion; 322. First mounting hole; 323. First mounting ring groove; 324. Accommodation groove; 33. Avoidance hole; 34. Closing plate; 35. Retaining ring; 36. Connecting sleeve; 37. Second mounting ring groove; 38. Avoidance ring groove; 381. Avoidance gap;

[0034] 40. First elastic sealing ring; 41. First connecting ring body; 42. First sealing convex ring;

[0035] 50. Second elastic sealing ring; 51. Second connecting ring body; 52. Second sealing convex ring;

[0036] 60. Third elastic sealing ring; 61. Third connecting ring body; 62. Third sealing convex ring;

[0037] 70. Power supply box;

[0038] 81. First fastener; 82. Second fastener. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In this embodiment, if Figures 1 to 4As shown, the display module assembly includes: a light board 10, a rear shell 20, a plug-in connector 30, a first elastic sealing ring 40 and a second elastic sealing ring 50. A plug-in connector 11 is provided on the light board 10. The rear shell 20 is provided on one side of the light board 10, and a socket 21 is provided on the rear shell 20, which is arranged around the outside of the plug-in connector 11. The socket 21 includes a first hole section 211 and a second hole section 212 that are connected. The first hole section 211 is located on the side of the second hole section 212 close to the light board 10. The projection of the first hole section 211 on the light board 10 is located within the projection of the second hole section 212 on the light board 10. The second hole section 212 passes through the surface of the rear shell 20 away from the light board 10. The plug-in connector 30 can be plugged into and matched with the socket 21. The plug-in connector 30 includes an insert 31 and a plug-in protruding ring 32 connected to the insert 31. The plug-in protruding ring 32 protrudes from the outer surface of the insert 31 along the radial direction of the insert 31. The insert sleeve 31 can be inserted into the first hole section 211, and the plug-in protruding ring 32 can be inserted into the second hole section 212. A first elastic sealing ring 40 is provided on the insert sleeve 31. When the insert sleeve 31 is inserted into the first hole section 211, the first elastic sealing ring 40 is located between the insert sleeve 31 and the side wall of the first hole section 211, and the first elastic sealing ring 40 and the side wall of the first hole section 211 are sealed. A second elastic sealing ring 50 is provided on the plug-in protruding ring 32. When the plug-in protruding ring 32 is inserted into the second hole section 212, the second elastic sealing ring 50 is located between the plug-in protruding ring 32 and the side wall of the second hole section 212, and the second elastic sealing ring 50 and the side wall of the second hole section 212 are sealed.

[0041] Thus, the provision of the first hole segment 211 and the second hole segment 212, as well as the provision of the first elastic sealing ring 40 and the second elastic sealing ring 50, can prevent liquid or moisture from entering the plug connector 11 or the light board 10 from between the socket 21 and the plug connector 30, reducing the possibility of circuit short circuits, damage, or abnormal display of the display module assembly, and improving the service life and stability of the display device. Furthermore, the plug connector 30 and the socket 21 are plugged together, allowing the user to choose whether to insert the plug connector 30 into the socket 21 according to actual waterproofing needs. The provision of the first hole segment 211, the second hole segment 212, the insert 31 inserted into the first hole segment 211, and the plug-in protruding ring 32 inserted into the second hole segment 212 allows the socket 21 and the plug connector 30 to be arranged in sections, so as to better utilize the sealing properties of the first elastic sealing ring 40 and the second elastic sealing ring 50, forming a double waterproof barrier and improving waterproofing reliability. Furthermore, the provision of the first hole section 211, the second hole section 212, the insert tube 31, and the plug-in protruding ring 32 can increase the contact area between the first elastic sealing ring 40 and the second elastic sealing ring 50 on the plug connector 30 and the rear housing 20, thereby improving the stability of the mechanical connection when the plug connector 30 is plugged into the receptacle 21. Furthermore, because the projection of the first hole section 211 on the light board 10 is located within the projection of the second hole section 212 on the light board 10, the projection of the first elastic sealing ring 40 on the light board 10 is located within the projection of the second elastic sealing ring 50 on the light board 10. Compared to a scenario where the projections of the first elastic sealing ring 40 and the second elastic sealing ring 50 on the light board 10 overlap, the technical solution of this embodiment can reduce the difficulty of liquid intrusion between the receptacle 21 and the plug connector 30. Liquid flow needs to change direction to reach the first elastic sealing ring 40 from the second elastic sealing ring 50, thereby further improving the waterproof effect. Therefore, the technical solution of the present application effectively solves the problem in the related art that the display device is easily penetrated by liquid or moisture, which affects the service life of the display device.

[0042] like Figures 3 to 8As shown, the first elastic sealing ring 40 includes a first connecting ring body 41 and a first sealing protrusion 42 disposed on the outer side of the first connecting ring body 41. The first connecting ring body 41 is connected to the insert sleeve 31, and the first sealing protrusion 42 seals against the sidewall of the first hole section 211. This allows the first elastic sealing ring 40 to be connected to the insert sleeve 31 via the first connecting ring body 41, making the connection between the first elastic sealing ring 40 and the insert sleeve 31 more convenient and reliable. When the first elastic sealing ring 40 seals against the sidewall of the first hole section 211, the provision of the first sealing protrusion 42 increases the deformation of the first elastic sealing ring 40 when it contacts the sidewall of the first hole section 211, thereby improving the waterproofing effect. The second elastic sealing ring 50 includes a second connecting ring body 51 and a second sealing protrusion 52 disposed on the outer side of the second connecting ring body 51. The second connecting ring body 51 is connected to the insertion protrusion 32, and the second sealing protrusion 52 seals against the sidewall of the second hole section 212. In this way, the second elastic sealing ring 50 can be connected to the plug-in protruding ring 32 through the second connecting ring body 51, making the connection between the second elastic sealing ring 50 and the plug-in protruding ring 32 more convenient and reliable. When the second elastic sealing ring 50 is in sealing engagement with the side wall of the second hole section 212, the provision of the second sealing protruding ring 52 can increase the deformation of the second elastic sealing ring 50 when in contact with the side wall of the second hole section 212, thereby improving the waterproof effect.

[0043] In other embodiments, the first elastic sealing ring 40 includes a first connecting ring body 41 and a first sealing protrusion 42 disposed on the outside of the first connecting ring body 41. The first connecting ring body 41 is connected to the insert sleeve 31, and the first sealing protrusion 42 is in sealing engagement with the sidewall of the first hole section 211. Alternatively, the second elastic sealing ring 50 includes a second connecting ring body 51 and a second sealing protrusion 52 disposed on the outside of the second connecting ring body 51. The second connecting ring body 51 is connected to the insert protrusion 32, and the second sealing protrusion 52 is in sealing engagement with the sidewall of the second hole section 212.

[0044] like Figures 3 to 8 As shown, the first elastic sealing ring 40 includes a first connecting ring body 41 and a first sealing protrusion 42 disposed on the outer side of the first connecting ring body 41. The first connecting ring body 41 is connected to the insert sleeve 31, and the first sealing protrusion 42 seals against the sidewall of the first hole section 211. Multiple first sealing protrusions 42 are provided at intervals along the axial direction of the insert sleeve 31. Providing multiple first sealing protrusions 42 forms a multi-layer waterproof barrier, significantly improving waterproof capabilities, preventing liquid from penetrating from the space between the jack 21 and the connector 30 to the connector 11, and effectively protecting the circuit safety of the light board 10.

[0045] like Figure 9As shown, the relationship between the distance L1 between two adjacent first sealing protrusions 42 and the thickness T of each first sealing protrusion 42 along the axial direction of the insert 31 satisfies the following equation: 2.0 ≤ L1 / T ≤ 3.0. Thus, the lower limit of L1 / T is set so that when the ends of the first sealing protrusions 42 abut the wall of the first hole section 211, the ends of the first sealing protrusions 42 are squeezed outward, leaving space on both sides of the first sealing protrusions 42 (space twice the thickness T on both sides) to accommodate the ends of the first sealing protrusions 42 after being squeezed and deformed. This improves the sealing and waterproofing effect and reduces the inconvenience of installation caused by the limited space at the ends of the deformed first sealing protrusions 42. Thus, the upper limit of L1 / T is set to limit the space between two adjacent first sealing protrusions 42, thereby controlling the amount of air contained between the two adjacent first sealing protrusions 42. Because the connector 30 is disposed within the first hole section 211, the two adjacent first sealing protrusions 42, the first hole section 211, and the first connecting ring 41 form a closed space. By controlling the upper limit of L1 / T, the amount of air contained within the enclosed space can be controlled. This prevents the problem of high pressure within the enclosed space caused by thermal expansion of the air in a high-temperature environment, which could lead to sealing failure of the first sealing bead, thereby improving the sealing effect. In summary, limiting L1 / T not only provides appropriate space for the first sealing bead 42 after extrusion and deformation, but also reduces the possibility of sealing failure caused by thermal expansion of air.

[0046] In this embodiment, there are three first sealing protrusions 42, which are arranged at equal intervals along the axial direction of the insert 31. In other embodiments, there are one, two, four, five, or more first sealing protrusions 42.

[0047] Preferably, L1 / T is 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 or 3.0.

[0048] like Figures 3 to 8As shown, the second elastic sealing ring 50 includes a second connecting ring body 51 and a second sealing protrusion 52 disposed outside the second connecting ring body 51. The second connecting ring body 51 is connected to the plug-in protrusion 32, and the second sealing protrusion 52 seals against the sidewall of the second hole section 212. There is one second sealing protrusion 52; alternatively, there may be multiple second sealing protrusions 52 spaced apart along the axial direction of the insert sleeve 31, with the number of first sealing protrusions 42 exceeding the number of second sealing protrusions 52. Thus, when there is one or more second sealing protrusions 52, the number of first sealing protrusions 42 is greater than the number of second sealing protrusions 52. This allows the plug-in protrusion 32, on which the second sealing protrusion 52 is mounted, to be thinner along the axial direction of the insert sleeve 31, thereby shortening the axial length of the larger second hole section 212. This reduces the total volume of the hole while ensuring waterproofing, thereby improving the structural strength of the rear housing 20 and enhancing the service life and stability of the display device.

[0049] like Figure 6 As shown, a first mounting groove 323 is provided on the circumferential surface of the plug-in protruding ring 32, and the second elastic sealing ring 50 is disposed within the first mounting groove 323. The bottom wall of the first mounting groove 323 is provided with a plurality of accommodating grooves 324 spaced along the circumference of the plug-in protruding ring 32. The provision of the first mounting groove 323 facilitates the installation of the second elastic sealing ring 50, reduces the possibility of the second elastic sealing ring 50 moving relative to the plug-in protruding ring 32 in the front-to-back direction of the lamp panel, and improves the connection reliability between the plug-in protruding ring 32 and the second elastic sealing ring 50, thereby improving the sealing reliability. The setting of multiple accommodating grooves 324 enables part of the second elastic sealing ring 50 to be squeezed into the multiple accommodating grooves 324 when the second elastic sealing ring 50 abuts against the second hole section 212, thereby increasing the contact area between the second elastic sealing ring 50 and the plug-in protrusion ring 32, increasing the friction between the second elastic sealing ring 50 and the plug-in protrusion ring 32, reducing the sliding of the second elastic sealing ring 50 relative to the plug-in protrusion ring 32 along the circumferential direction of the plug-in protrusion ring 32, and also reducing the sliding of the second elastic sealing ring 50 relative to the plug-in protrusion ring 32 along the front and rear directions of the lamp board, thereby improving the sealing reliability.

[0050] In this embodiment, the plug-in protrusion 32 is a plastic part. The provision of multiple accommodating grooves 324 can reduce the physical volume of the plug-in protrusion 32, reduce the local physical aggregation of the plug-in protrusion 32, reduce the possibility of poor injection molding, thereby reducing product shrinkage problems and improving product qualification rate.

[0051] like Figures 3 to 8As shown, the first elastic sealing ring 40 includes a first connecting ring body 41 and a first sealing protrusion 42 disposed outside the first connecting ring body 41. The first connecting ring body 41 is connected to the insert sleeve 31, and the first sealing protrusion 42 seals against the sidewall of the first hole section 211. The relationship between the diameter D1 of the first sealing protrusion 42 and the diameter D2 of the first hole section 211 satisfies the following: 1.0 mm ≤ D1-D2 ≤ 1.6 mm. By limiting the relationship between D1 and D2, the interference between the first sealing protrusion 42 and the first hole section 211 is controllable. Setting a lower limit for the distance D1-D2 allows the end of the first sealing protrusion 42 to abut against the sidewall of the first hole section 211, thereby achieving reliable waterproofing. Setting an upper limit for the distance D1-D2 prevents the first sealing protrusion 42 from slipping out of the first hole section 211 due to excessive force when the end of the first sealing protrusion 42 abuts against the sidewall of the first hole section 211, thereby improving sealing reliability.

[0052] Preferably, D1-D2 is 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm or 1.6 mm.

[0053] like Figures 3 to 8 As shown, the second elastic sealing ring 50 includes a second connecting ring body 51 and a second sealing protrusion 52 disposed outside the second connecting ring body 51. The second connecting ring body 51 is connected to the plug-in protrusion 32, and the second sealing protrusion 52 seals against the sidewall of the second hole segment 212. The relationship between the diameter D3 of the second sealing protrusion 52 and the diameter D4 of the second hole segment 212 satisfies the following: 1.0 mm ≤ D3 - D4 ≤ 1.6 mm. By limiting the relationship between D3 and D4, the interference between the second sealing protrusion 52 and the second hole segment 212 is controllable. Setting a lower limit for D3 - D4 allows the end of the second sealing protrusion 52 to abut against the sidewall of the second hole segment 212, thereby achieving reliable waterproofing. Setting an upper limit for D3 - D4 prevents the second sealing protrusion 52 from slipping out of the second hole segment 212 due to excessive force when the end of the second sealing protrusion 52 abuts against the sidewall of the second hole segment 212, thereby improving sealing reliability.

[0054] Preferably, D3-D4 is 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm or 1.6 mm.

[0055] like Figure 3 and Figure 4As shown, the rear housing 20 is also provided with a flange 22 and a retaining ring 23. The retaining ring 23 is disposed inside the first hole section 211. The flange 22 is connected between the retaining ring 23 and the sidewall of the first hole section 211. The sidewall of the first hole section 211, the flange 22, and the retaining ring 23 form a slot 24, into which the insert 31 is inserted. The design of the flange 22 and retaining ring 23 increases the structural complexity of the plug-in hole. By forming the slot 24, the path for liquid to enter the plug-in hole 21 from between the plug-in component 30 and the rear housing 20 is more complex, making it more difficult for liquid to enter, and further improving the waterproof performance of the first elastic sealing ring 40. In addition, the slot 24 is easy to process and has low production costs.

[0056] like Figure 3 、 Figure 5 as well as Figure 6 As shown, in some embodiments, the display module assembly further includes a sealing plate 34 connected to the plug connector 30. The sealing plate 34 is used to seal the jack 21. The plug connector 30 is fixedly connected to the rear housing 20. In this way, when the plug connector 11 on the light board 10 does not need to be plugged in, the sealing plate 34 can seal the jack 21, thereby maintaining a good waterproof state, preventing liquid intrusion when not plugged in, further enhancing the overall waterproofness, and reducing maintenance costs. Preferably, the plug collar 32 of the plug connector 30 is fixedly connected to the rear housing 20. The plug sleeve 31, plug collar 32, and sealing plate 34 are an integrally molded structure.

[0057] In some embodiments, as Figure 5 as well as Figure 6 As shown, the display module assembly also includes a first fastener 81 for connecting the plug-in protruding ring 32 and the rear shell 20. A first mounting hole 322 is provided on the plug-in protruding ring 32, and a second mounting hole is provided on the rear shell 20. The first fastener 81 is inserted into the first mounting hole 322 and the second mounting hole. The second mounting hole is a blind hole. In the projection on the surface of the lamp board 10 close to the rear shell 20, the first fastener 81 is located between the first elastic sealing ring 40 and the second elastic sealing ring 50 to prevent liquid from entering the plug hole 21 from between the first elastic sealing ring 40 and the connector 30 through the first mounting hole 322. A positioning protrusion 321 is provided on the surface of the plug-in protruding ring 32 facing the lamp board 10, and the first mounting hole 322 passes through the positioning protrusion 321. A positioning groove is provided on the surface of the rear shell 20 facing away from the lamp board 10, and the second mounting hole passes through the bottom wall of the positioning groove. In this way, when the first fastener 81 connects the plug-in protruding ring 32 and the rear housing 20 , the positioning protrusion 321 and the positioning groove can be positioned and matched, so that the fixed position of the plug-in component 30 on the rear housing 20 is more accurate.

[0058] In other embodiments, the sealing plate 34 is fixedly connected to the rear housing 20 , and the sealing plate 34 is bonded to the rear housing 20 .

[0059] like Figure 4 、 Figure 7 as well as Figure 8 As shown, in other embodiments, the connector 30 is provided with an avoidance hole 33 that communicates with the socket 21. The avoidance hole 33 passes through the surface of the connector 30 facing away from the light board 10. A third elastic sealing ring 60 is provided on the surface of the connector 30 facing away from the light board 10. The third elastic sealing ring 60 is arranged outside the avoidance hole 33, and the end of the third elastic sealing ring 60 protrudes from the surface of the connector 30 facing away from the light board 10. In this way, when the plug connector 11 on the light board 10 needs to be plugged in, the external plug structure (such as the power box 70 described below) can pass through the avoidance hole 33 and extend into the socket 21 to plug and mate with the plug connector 11 on the light board 10. Furthermore, the third elastic sealing ring 60 is provided to seal with the external plug-in structure (such as the power box 70 described below) to prevent liquid from entering the jack 21 between the external plug-in structure (such as the power box 70 described below) and the connector 30, effectively protecting the circuit safety of the light board 10. Disposing the third elastic sealing ring 60 on the surface of the connector 30 facing away from the light board 10 can increase the waterproof protection of the external plug-in structure along the direction of movement during insertion. This design broadens the waterproof range and effectively prevents liquid from entering even when the connector 30 is connected to the external plug-in structure, ensuring the protection capability of the display module assembly in various connection states.

[0060] Furthermore, the above-mentioned setting enables the connector 30 to move synchronously with the external plug-in structure when the external plug-in structure (such as the power box 70 described below) is plugged into the plug connector 11 of the lamp panel 10, so that the connector 30 can be inserted into the socket 21, thereby improving the plug-in efficiency and convenience of use.

[0061] In other embodiments, Figure 8 As shown, the connector 30 also includes a retaining ring 35 connected to the insert sleeve 31. The retaining ring 35 protrudes radially from the inner surface of the insert sleeve 31, and the inner surface of the retaining ring 35 forms an avoidance hole 33. A connecting tube 36 is provided on the surface of the connector 30 facing away from the light board 10. Specifically, the connecting tube 36 is provided on the retaining ring 35. A third mounting hole is provided on the surface of the power box 70 facing the light board 10. The display module assembly also includes a second fastener 82 for connecting the connector 30 to the power box 70. The second fastener 82 is inserted into the third mounting hole and the connecting tube 36 to securely connect the connector 30 to the power box 70. Furthermore, when the connector 30 is securely connected to the power box 70, the connecting tube 36 is inserted into the third mounting hole and engages with the third mounting hole to further improve the reliability of the secure connection between the connector 30 and the power box 70 and facilitate the positioning of the connector 30 and the power box 70.

[0062] like Figures 3 to 8As shown, the third elastic sealing ring 60 includes a third connecting ring body 61 and a third sealing protrusion 62 connected to the third connecting ring body 61. The third connecting ring body 61 is connected to the plug-in connector 30. The third sealing protrusion 62 extends in a direction away from the light board 10. The end of the third sealing protrusion 62 protrudes from the surface of the plug-in connector 30 facing away from the light board 10. In this way, the third elastic sealing ring 60 can be connected to the plug-in connector 30 through the third connecting ring body 61, making the connection between the third elastic sealing ring 60 and the plug-in connector 30 more convenient and reliable. When the third elastic sealing ring 60 is sealed with an external plug-in structure (such as the power box 70 described below), the provision of the third sealing protrusion 62 can increase the deformation of the third elastic sealing ring 60 when it abuts against the external plug-in structure (such as the power box 70 described below), thereby improving the waterproof effect.

[0063] like Figure 9 As shown, a second mounting ring groove 37 and a relief ring groove 38 are provided on the surface of the connector 30 facing away from the light board 10. The second mounting ring groove 37 is connected to the relief ring groove 38. The third connecting ring 61 is disposed within the second mounting ring groove 37. The third sealing protrusion 62 is at least partially located within the relief ring groove 38. A relief gap 381 is defined between the sidewall of the relief ring groove 38 and the third sealing protrusion 62. Thus, when the third connecting ring 61 abuts against an external plug-in structure (such as the power box 70 described below), the end of the third connecting ring 61 is squeezed and deformed, and the relief gap 381 can accommodate the squeezed and deformed end of the third connecting ring 61. Furthermore, the squeezed and deformed end of the third connecting ring 61 can fill the relief ring groove 38, thereby increasing the contact area between the third connecting ring 61 and the external plug-in structure (such as the power box 70 described below), thereby improving the sealing and waterproofing effect.

[0064] In some embodiments, two third sealing protrusions 62 are spaced apart along the circumference of the third connecting ring body 61, and a clearance gap 381 is defined between the sidewall of the clearance ring groove 38 and each third sealing protrusion 62. When the third connecting ring body 61 abuts an external plug-in structure (such as the power box 70 described below), the two third sealing protrusions 62 deform to the sides and fill the two clearance gaps 381, further enhancing the sealing and waterproofing effect.

[0065] like Figure 9 As shown, the distance L2 that the end of the third sealing protrusion 62 protrudes from the surface of the connector 30 facing away from the light board 10 satisfies the following: 0.5mm≤L2≤0.8mm. By limiting the range of L2 as described above, the end of the third sealing protrusion 62 can abut against an external plug-in structure (such as the power box 70 described below), thereby achieving reliable waterproofing. This also avoids the problem of excessive force when the third sealing protrusion 62 abuts against an external plug-in structure (such as the power box 70 described below) due to an excessively large L2, which would make installation difficult.

[0066] In this embodiment, the third sealing protrusion ring 62 , the second elastic sealing ring 50 , and the first elastic sealing ring 40 are all made of silicone material, and the hardness of each is 45 degrees.

[0067] Preferably, L2 is 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm or 0.8 mm.

[0068] It should be noted that the surface of the connector 30 facing away from the lamp board 10 refers to the surface of the connector 30 on which no avoidance ring groove is provided.

[0069] like Figure 1 and Figure 2 As shown, the present application also provides a display device, comprising a display module assembly, wherein the display module assembly is the display module assembly described above. Since the display module assembly described above can solve the problem in the related art that display devices are easily infiltrated by liquid or moisture, thereby affecting the service life of the display device, a display device having the display module assembly can solve the same technical problem.

[0070] like Figure 1 and Figure 2 As shown, the present application also provides a display device, which includes a display module assembly and a power box 70. The display module assembly is the above-mentioned display module assembly, the plug-in connector 30 is fixedly connected to the power box 70, the third elastic sealing ring 60 is sealed with the surface of the power box 70, and the power box 70 is provided with a plug-in hole connected to the avoidance hole 33. In this way, through the sealing cooperation between the third elastic sealing ring 60 and the surface of the power box 70, waterproof protection is formed from the direction of the power box 70. This design not only protects the display module from liquid intrusion, but also ensures the safe use of the power box 70, avoids display device failure caused by power short circuit, thereby improving the reliability of the entire display device and the wide range of outdoor applications. By providing a plug-in hole connected to the avoidance hole 33 on the power box 70, the structure in the power box 70 is facilitated to plug and match with the plug connector 11. Furthermore, the fixed connection of the connector 30 to the power box 70 compresses the third elastic sealing ring 60 located between the power box 70 and the plug-in protruding ring 32, thereby achieving a frontal waterproofing effect (waterproofing along the direction from the front side of the light board to the rear side of the light board). The first elastic sealing ring 40 disposed on the insert 31 can also achieve a side waterproofing effect (waterproofing along the direction perpendicular to the front side of the light board to the rear side of the light board), thereby facilitating the separation and assembly of the connector 30 from the rear housing 20. Thus, by fixedly connecting the connector 30 to the power box 70 and allowing the connector 30 to be separated from the rear housing 20, the display module (including the light board 10 and the rear housing 20) can be easily removed and installed on the power box 70, thereby achieving front-to-back maintenance of the display module.

[0071] In some embodiments, the connector 30 and the power box 70 are fixedly connected using fasteners such as screws. These fasteners compress the third elastic sealing ring 60, ensuring a more reliable seal between the third elastic sealing ring 60 and the surface of the power box 70, thereby achieving a better waterproof effect. The presence of four screws ensures a stable connection between the connector 30 and the power box 70 and increases the squeezing force on the third elastic sealing ring 60, thereby improving the sealing performance.

[0072] In the description of the present invention, it is to be understood that "plurality" refers to a quantity of two or more than two. The directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0073] In addition, the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0074] The above description is merely a preferred embodiment and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A display module assembly, characterized in that: include: A light board (10), wherein a plug connector (11) is provided on the light board (10); A rear shell (20) is arranged on one side of the lamp board (10), and a socket (21) is provided on the rear shell (20) and is arranged around the outside of the plug connector (11), and the socket (21) includes a first hole section (211) and a second hole section (212) that are connected to each other, the first hole section (211) is located on a side of the second hole section (212) close to the lamp board (10), the projection of the first hole section (211) on the lamp board (10) is located within the projection of the second hole section (212) on the lamp board (10), and the second hole section (212) passes through the surface of the rear shell (20) away from the lamp board (10); A plug connector (30) is capable of being plugged into and mated with the jack (21). The plug connector (30) comprises an insert sleeve (31) and a plug-in convex ring (32) connected to the insert sleeve (31). The plug-in convex ring (32) protrudes from the outer surface of the insert sleeve (31) along the radial direction of the insert sleeve (31). The insert sleeve (31) can be inserted into the first hole section (211), and the plug-in convex ring (32) can be inserted into the second hole section (212). A first elastic sealing ring (40) is provided on the insert tube (31), the insert tube (31) is inserted into the first hole section (211), the first elastic sealing ring (40) is located between the insert tube (31) and the hole side wall of the first hole section (211), and the first elastic sealing ring (40) is sealed and matched with the hole side wall of the first hole section (211); A second elastic sealing ring (50) is provided on the plug-in convex ring (32), the plug-in convex ring (32) is inserted into the second hole section (212), the second elastic sealing ring (50) is located between the plug-in convex ring (32) and the hole side wall of the second hole section (212), and the second elastic sealing ring (50) is sealed and matched with the hole side wall of the second hole section (212).

2. The display module assembly according to claim 1, wherein: The first elastic sealing ring (40) comprises a first connecting ring body (41) and a first sealing convex ring (42) arranged on the outer side of the first connecting ring body (41), the first connecting ring body (41) is connected to the insert (31), and the first sealing convex ring (42) is in sealing cooperation with the side wall of the first hole section (211); and / or, The second elastic sealing ring (50) comprises a second connecting ring body (51) and a second sealing convex ring (52) arranged on the outside of the second connecting ring body (51); the second connecting ring body (51) is connected to the plug-in convex ring (32); and the second sealing convex ring (52) is sealed and matched with the side wall of the second hole section (212).

3. The display module assembly according to claim 1, wherein: The first elastic sealing ring (40) includes a first connecting ring body (41) and a first sealing convex ring (42) arranged on the outer side of the first connecting ring body (41), the first connecting ring body (41) is connected to the insert (31), the first sealing convex ring (42) is sealed with the side wall of the first hole section (211), and the first sealing convex ring (42) is arranged in plurality along the axial direction of the insert (31).

4. The display module assembly according to claim 3, wherein: The relationship between the distance L1 between two adjacent first sealing convex rings (42) and the thickness T of each first sealing convex ring (42) along the axial direction of the insert (31) satisfies: 2.0≤L1 / T≤3.

0.

5. The display module assembly according to claim 3, wherein: The second elastic sealing ring (50) comprises a second connecting ring body (51) and a second sealing convex ring (52) arranged on the outside of the second connecting ring body (51); the second connecting ring body (51) is connected to the plug-in convex ring (32); and the second sealing convex ring (52) is in sealing engagement with the side wall of the second hole section (212); The second sealing protrusion ring (52) is one; or, The second sealing convex rings (52) are multiple and spaced apart along the axial direction of the insert sleeve (31), and the number of the first sealing convex rings (42) is greater than the number of the second sealing convex rings (52).

6. The display module assembly according to claim 1, wherein: A first mounting ring groove (323) is provided on the circumferential surface of the plug-in convex ring (32), and the second elastic sealing ring (50) is provided in the first mounting ring groove (323); a plurality of accommodating grooves (324) are provided on the bottom wall of the first mounting ring groove (323) and are spaced apart along the circumference of the plug-in convex ring (32).

7. The display module assembly according to claim 1, wherein: The first elastic sealing ring (40) comprises a first connecting ring body (41) and a first sealing convex ring (42) arranged on the outer side of the first connecting ring body (41); the first connecting ring body (41) is connected to the insert sleeve (31); the first sealing convex ring (42) is in sealing cooperation with the side wall of the first hole section (211); the relationship between the diameter D1 of the first sealing convex ring (42) and the hole diameter D2 of the first hole section (211) satisfies: 1.0mm≤D1-D2≤1.6mm; and / or, The second elastic sealing ring (50) includes a second connecting ring body (51) and a second sealing convex ring (52) arranged on the outer side of the second connecting ring body (51), the second connecting ring body (51) is connected to the plug-in convex ring (32), and the second sealing convex ring (52) is sealed with the side wall of the second hole section (212); the relationship between the diameter D3 of the second sealing convex ring (52) and the hole diameter D4 of the second hole section (212) satisfies: 1.0mm≤D3-D4≤1.6mm.

8. The display module assembly according to claim 1, wherein: The rear shell (20) is further provided with a flange (22) and a retaining ring (23), the retaining ring (23) is provided on the inner side of the first hole section (211), the flange (22) is connected between the retaining ring (23) and the hole side wall of the first hole section (211), the hole side wall of the first hole section (211), the flange (22) and the retaining ring (23) form a slot (24), and the insert (31) is inserted into the slot (24); and / or, the display module assembly further includes a sealing plate (34) connected to the plug-in component (30), the sealing plate (34) is used to close the plug-in hole (21), and the plug-in component (30) or the sealing plate (34) is fixedly connected to the rear shell (20).

9. The display module assembly according to claim 1, wherein: The connector (30) is provided with a relief hole (33) connected to the socket (21), and the relief hole (33) passes through the surface of the connector (30) facing away from the light board (10). A third elastic sealing ring (60) is provided on the surface of the connector (30) facing away from the light board (10), and the third elastic sealing ring (60) is arranged around the outside of the relief hole (33), and the end of the third elastic sealing ring (60) protrudes from the surface of the connector (30) facing away from the light board (10).

10. The display module assembly according to claim 9, wherein: The third elastic sealing ring (60) includes a third connecting ring body (61) and a third sealing protrusion ring (62) connected to the third connecting ring body (61), the third connecting ring body (61) is connected to the connector (30), the third sealing protrusion ring (62) extends in a direction away from the lamp board (10), and the end of the third sealing protrusion ring (62) protrudes from the surface of the connector (30) away from the lamp board (10).

11. The display module assembly according to claim 10, wherein: A second mounting ring groove (37) and an escape ring groove (38) are provided on the surface of the connector (30) facing away from the lamp board (10); the second mounting ring groove (37) is connected to the escape ring groove (38); the third connecting ring body (61) is provided in the second mounting ring groove (37); the third sealing convex ring (62) is at least partially located in the escape ring groove (38); and an escape gap (381) is provided between the groove side wall of the escape ring groove (38) and the third sealing convex ring (62); and / or, The distance L2 at which the end of the third sealing protruding ring (62) protrudes from the surface of the connector (30) away from the lamp board (10) satisfies the following: 0.5 mm ≤ L2 ≤ 0.8 mm.

12. A display device comprising a display module assembly, characterized in that: The display module assembly is the display module assembly according to any one of claims 1 to 11.

13. A display device comprising a display module assembly and a power supply box (70), characterized in that: The display module assembly is the display module assembly according to any one of claims 9 to 11, the connector (30) is fixedly connected to the power box (70), the third elastic sealing ring (60) is sealed with the surface of the power box (70), and the power box (70) is provided with a plug hole connected to the avoidance hole (33).

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