Display module assembly and display device

Abstract

The utility model provides a kind of display module assembly and display device, display module assembly includes: lamp plate;Rear shell is provided with the jack outside the socket being enclosed on rear shell, socket includes the first hole section and second hole section being communicated, the projection of first hole section on lamp plate is located in the projection of second hole section on lamp plate;Plug-in part is inserted into socket, and plug-in part includes insert tube and the plug-in convex ring being connected with insert tube, and plug-in convex ring projects on the outer surface of insert tube along the radial direction of insert tube;First elastic sealing ring is located between insert tube and the hole side wall of first hole section, and first elastic sealing ring and the hole side wall of first hole section sealing cooperation;Second elastic sealing ring is located between plug-in convex ring and the hole side wall of second hole section, and second elastic sealing ring and the hole side wall of second hole section sealing cooperation.The technical scheme of the application effectively solves the problem that display device in related art is easily entered by liquid or moisture, affecting the service life of display device.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and more specifically, to a display module assembly and a display device. Background Technology

[0002] The display module is the core component of the display device. The display module typically consists of a lamp panel and a back cover. The lamp panel has connectors for connecting to other display modules or controllers, while the back cover has corresponding ports surrounding the connectors.

[0003] However, when display devices are used outdoors for extended periods, especially in rainy or humid areas, the waterproofing of the display module becomes a significant issue. In related technologies, connectors and sockets are often weak points in waterproofing, allowing liquids or moisture to easily penetrate into the lamp board, causing short circuits, damage, or malfunctions in the display module's circuitry, thus affecting the lifespan and stability of the display device.

[0004] Therefore, display devices in related technologies are easily exposed to liquids or moisture, which can affect their lifespan. Utility Model Content

[0005] The main objective of this invention is to provide a display module assembly and a display device to solve the problem in related technologies where display devices are easily infiltrated by liquids or moisture, affecting their lifespan.

[0006] To achieve the above objectives, according to one aspect of the present invention, a display module assembly is provided, comprising: a lamp panel, on which a connector is provided; a rear shell, disposed on one side of the lamp panel, the rear shell having a socket surrounding the outside of the connector, the socket including a first segment and a second segment connected to each other, the first segment being located on the side of the second segment closer to the lamp panel, the projection of the first segment on the lamp panel being located within the projection of the second segment on the lamp panel, the second segment penetrating the surface of the rear shell away from the lamp panel; and a connector capable of being inserted into the socket, the connector including a insert and a connector protrusion connected to the insert, the connector protrusion... A ring protrudes radially from the outer surface of the insert, allowing the insert to be inserted into the first hole section and the insertion protrusion ring to be inserted into the second hole section. A first elastic sealing ring is disposed on the insert, and when the insert is inserted into the first hole section, the first elastic sealing ring is located between the insert and the hole sidewall of the first hole section, and the first elastic sealing ring is in sealing fit with the hole sidewall of the first hole section. A second elastic sealing ring is disposed on the insertion protrusion ring, and when the insertion protrusion ring is inserted into the second hole section, the second elastic sealing ring is located between the insertion protrusion ring and the hole sidewall of the second hole section, and the second elastic sealing ring is in sealing fit with the hole sidewall of the second hole section.

[0007] Furthermore, the first elastic sealing ring includes a first connecting ring body and a first sealing protrusion ring disposed on the outer side of the first connecting ring body, the first connecting ring body being connected to the insert, and the first sealing protrusion ring being sealed to the sidewall of the first hole section; and / or, the second elastic sealing ring includes a second connecting ring body and a second sealing protrusion ring disposed on the outer side of the second connecting ring body, the second connecting ring body being connected to the insert protrusion ring, and the second sealing protrusion ring being sealed to the sidewall of the second hole section.

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

[0009] Furthermore, the first elastic sealing ring includes a first connecting ring body and a first sealing protrusion ring disposed on the outer side of the first connecting ring body. The first connecting ring body is connected to the insert, and the first sealing protrusion ring is sealed to the side wall of the first hole section. The first sealing protrusion ring is a plurality of rings spaced apart along the axial direction of the insert.

[0010] Furthermore, the second elastic sealing ring includes a second connecting ring body and a second sealing protrusion ring disposed on the outer side of the second connecting ring body. The second connecting ring body is connected to the insertion protrusion ring, and the second sealing protrusion ring is sealed to the sidewall of the second hole section. There is one second sealing protrusion ring; or, there are multiple second sealing protrusion rings spaced apart along the axial direction of the insert, and the number of first sealing protrusion rings is greater than the number of second sealing protrusion rings.

[0011] Furthermore, a first mounting ring groove is provided on the circumferential surface of the insertion protrusion ring, and a second elastic sealing ring is disposed within the first mounting ring groove. A plurality of receiving grooves are provided on the bottom wall of the first mounting ring groove, spaced apart along the circumference of the insertion protrusion ring.

[0012] Furthermore, the first elastic sealing ring includes a first connecting ring body and a first sealing protrusion ring disposed on the outer side of the first connecting ring body. The first connecting ring body is connected to the insert sleeve, and the first sealing protrusion ring is in sealing fit with the sidewall of the first hole section. The relationship between the diameter D1 of the first sealing protrusion ring and the hole diameter 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 protrusion ring disposed on the outer side of the second connecting ring body. The second connecting ring body is connected to the insert protrusion ring, and the second sealing protrusion ring is in sealing fit with the sidewall of the second hole section. The relationship between the diameter D3 of the second sealing protrusion ring and the hole diameter D4 of the second hole section satisfies: 1.0mm≤D3-D4≤1.6mm.

[0013] Furthermore, the rear housing is also provided with a flange and a retaining ring. The retaining ring is located inside the first hole section, and the flange is connected between the retaining ring and the hole sidewall of the first hole section. The hole sidewall of the first hole section, 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 insertion hole, and the connector or the sealing plate is fixedly connected to the rear housing.

[0014] Furthermore, the connector is provided with a clearance hole communicating with the socket. The clearance hole penetrates the surface of the connector away from the lamp panel. A third elastic sealing ring is provided on the surface of the connector away from the lamp panel. The third elastic sealing ring surrounds the outside of the clearance hole, and the end of the third elastic sealing ring protrudes from the surface of the connector away from the lamp panel.

[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, and the third sealing protrusion extends in a direction away from the lamp panel. The end of the third sealing protrusion protrudes from the surface of the plug-in opposite to the lamp panel.

[0016] Furthermore, a second mounting ring groove and a clearance ring groove are provided on the surface of the connector away from the lamp panel. The second mounting ring groove and the clearance ring groove are connected. The third connecting ring body is disposed in the second mounting ring groove. The third sealing convex ring is at least partially located in the clearance ring groove. There is a clearance gap between the groove sidewall of the clearance ring groove and the third sealing convex ring. And / or, the distance L2 from the end of the third sealing convex ring protruding from the surface of the connector away from the lamp panel satisfies: 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 display module assembly described above.

[0018] According to another aspect of the present invention, a display device is provided, including a display module assembly and a power supply box. The display module assembly is the aforementioned display module assembly. The plug is fixedly connected to the power supply box. A third elastic sealing ring is sealed to the surface of the power supply box. The power supply box is provided with a plug hole communicating with the clearance hole.

[0019] The present invention provides a display module assembly comprising: a lamp panel, a rear shell, a connector, a first elastic sealing ring, and a second elastic sealing ring. A connector is provided on the lamp panel. The rear shell is disposed on one side of the lamp panel and has a socket surrounding the connector. The socket includes a first segment and a second segment that are connected. The first segment is located on the side of the second segment closer to the lamp panel, and the projection of the first segment on the lamp panel is within the projection of the second segment on the lamp panel. The second segment penetrates the surface of the rear shell away from the lamp panel. The connector is capable of being inserted into the socket. The connector includes a insert and a connecting protrusion ring connected to the insert. The connecting protrusion ring protrudes radially from the outer surface of the insert. The insert can be inserted into the first segment, and the connecting protrusion ring can be inserted into the second segment. The first elastic sealing ring is disposed on the insert. When the insert is inserted into the first segment, the first elastic sealing ring is located between the insert and the sidewall of the first segment, and the first elastic sealing ring is in a sealing fit with the sidewall of the first segment. The second elastic sealing ring is disposed on the insertion protrusion ring. When the insertion protrusion ring is inserted into the second hole section, the second elastic sealing ring is located between the insertion protrusion ring and the side wall of the second hole section, and the second elastic sealing ring and the side wall of the second hole section are sealed together. Thus, the arrangement of the first and second hole sections, as well as the arrangement of the first and second elastic sealing rings, prevents liquid or moisture from entering the connector or lamp board from between the socket and the connector, reducing the possibility of short circuits, damage, or abnormal display of the display module components, and improving the service life and stability of the display device. Furthermore, the insertion of the connector into the socket allows the user to choose whether to insert the connector into the socket according to actual waterproofing needs. The arrangement of the first hole section, the second hole section, the insert inserted into the first hole section, and the insertion protrusion ring inserted into the second hole section allows the socket and connector to be segmented, facilitating better utilization of the sealing characteristics of the first and second elastic sealing rings, forming a double waterproof barrier, and improving the reliability of waterproofing. Furthermore, the arrangement of the first hole segment, the second hole segment, the insert, and the insertion protrusion ring increases the contact area between the first and second elastic sealing rings on the connector and the rear shell, thereby improving the stability of the mechanical connection when the connector is inserted into the hole. Further, since the projection of the first hole segment on the lamp plate is located within the projection of the second hole segment on the lamp plate, the projection of the first elastic sealing ring on the lamp plate is also located within the projection of the second elastic sealing ring on the lamp plate. Compared to a situation where the projections of the first and second elastic sealing rings on the lamp plate coincide, this invention increases the difficulty of liquid intrusion between the hole and the connector. Liquid needs to change its flow direction to reach the first elastic sealing ring from the second elastic sealing ring, further improving the waterproof effect. Therefore, the technical solution of this application effectively solves the problem in related technologies where display devices are easily infiltrated by liquids or moisture, affecting the lifespan of the display device. Attached Figure Description

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

[0021] Figure 1 A perspective structural schematic diagram of an embodiment of the display device according to the present invention is shown;

[0022] Figure 2 It shows Figure 1 A cross-sectional schematic diagram of the display module assembly of the display device;

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

[0024] Figure 4 It shows Figure 2 A partial enlarged view of point B of the display module assembly of the display device;

[0025] Figure 5 It shows Figure 1 A cross-sectional schematic diagram of a connector in some embodiments of the display device;

[0026] Figure 6 It shows Figure 1 An exploded view of the connector in some embodiments of the display device;

[0027] Figure 7 It shows Figure 1 A cross-sectional schematic diagram of a connector in some other embodiments of the display device;

[0028] Figure 8 It shows Figure 1 A partially exploded structural diagram of the connector of the display device;

[0029] Figure 9 It shows Figure 1 A partial schematic diagram of the connector for the display device.

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

[0031] 10. Light panel; 11. Connector;

[0032] 20. Rear cover; 21. Insertion hole; 211. First hole section; 212. Second hole section; 22. Flanged edge; 23. Retaining ring; 24. Slot;

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

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

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

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit the present utility model or its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0040] In this embodiment, as Figures 1 to 4As shown, the display module assembly includes: a lamp panel 10, a rear housing 20, a connector 30, a first elastic sealing ring 40, and a second elastic sealing ring 50. A connector 11 is provided on the lamp panel 10. The rear housing 20 is located on one side of the lamp panel 10, and a socket 21 surrounding the outer side of the connector 11 is provided on the rear housing 20. The socket 21 includes a first hole segment 211 and a second hole segment 212 that are connected. The first hole segment 211 is located on the side of the second hole segment 212 closer to the lamp panel 10, and the projection of the first hole segment 211 on the lamp panel 10 is located within the projection of the second hole segment 212 on the lamp panel 10. The second hole segment 212 penetrates the surface of the rear housing 20 away from the lamp panel 10. The connector 30 can be inserted into the socket 21. The connector 30 includes a plug cylinder 31 and a plug-in protrusion 32 connected to the plug cylinder 31. The plug-in protrusion 32 protrudes radially from the outer surface of the plug cylinder 31. The insert 31 can be inserted into the first hole 211, and the insertion protrusion 32 can be inserted into the second hole 212. A first elastic sealing ring 40 is disposed on the insert 31. When the insert 31 is inserted into the first hole 211, the first elastic sealing ring 40 is located between the insert 31 and the sidewall of the hole in the first hole 211, and the first elastic sealing ring 40 is in a sealing fit with the sidewall of the hole in the first hole 211. A second elastic sealing ring 50 is disposed on the insertion protrusion 32. When the insertion protrusion 32 is inserted into the second hole 212, the second elastic sealing ring 50 is located between the insertion protrusion 32 and the sidewall of the hole in the second hole 212, and the second elastic sealing ring 50 is in a sealing fit with the sidewall of the hole in the second hole 212.

[0041] Thus, the arrangement of the first hole segment 211 and the second hole segment 212, along with the first elastic sealing ring 40 and the second elastic sealing ring 50, prevents liquid or moisture from entering the connector 11 or the lamp board 10 from between the socket 21 and the connector 30. This reduces the possibility of short circuits, damage, or abnormal display in the display module components, improving the lifespan and stability of the display device. Furthermore, the connector 30's insertion into the socket 21 allows the user to choose whether to insert the connector 30 into the socket 21 based on actual waterproofing needs. The arrangement of the first hole segment 211, the second hole segment 212, the insert 31 inserted into the first hole segment 211, and the connector protrusion 32 inserted into the second hole segment 212 allows the socket 21 and the connector 30 to be segmented, better utilizing the sealing characteristics of the first elastic sealing ring 40 and the second elastic sealing ring 50 to form a double waterproof barrier, improving waterproofing reliability. Furthermore, the arrangement of the first hole segment 211, the second hole segment 212, the insert 31, and the insertion protrusion ring 32 increases the contact area between the first elastic sealing ring 40 and the second elastic sealing ring 50 on the insert 30 and the rear shell 20, thereby improving the stability of the mechanical connection when the insert 30 is inserted into the insertion hole 21. Further, since the projection of the first hole segment 211 on the lamp plate 10 is within the projection of the second hole segment 212 on the lamp plate 10, the projection of the first elastic sealing ring 40 on the lamp plate 10 is also within the projection of the second elastic sealing ring 50 on the lamp plate 10. Compared to the situation where the projections of the first elastic sealing ring 40 and the second elastic sealing ring 50 on the lamp plate 10 coincide, the technical solution of this embodiment increases the difficulty for liquid to penetrate between the insertion hole 21 and the insert 30. The liquid needs to change its flow 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 this application effectively solves the problem in the related art that display devices are easily penetrated by liquids or moisture, affecting the service life of the display devices.

[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 31, and the first sealing protrusion 42 is sealed to the side wall of the first hole section 211. This allows the first elastic sealing ring 40 to be connected to the insert 31 via the first connecting ring body 41, making the connection between the first elastic sealing ring 40 and the insert 31 more convenient and reliable. When the first elastic sealing ring 40 is sealed to the side wall of the first hole section 211, the first sealing protrusion 42 increases the deformation when the first elastic sealing ring 40 abuts against the side wall of the first hole section 211, thereby improving the waterproof 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 is sealed to the side wall of the second hole section 212. This allows the second elastic sealing ring 50 to connect to the insertion protrusion ring 32 via the second connecting ring body 51, making the connection between the second elastic sealing ring 50 and the insertion protrusion ring 32 more convenient and reliable. When the second elastic sealing ring 50 seals against the sidewall of the second hole section 212, the second sealing protrusion ring 52 increases the deformation when the second elastic sealing ring 50 abuts against the sidewall 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 outside the first connecting ring body 41. The first connecting ring body 41 is connected to the insert 31, and the first sealing protrusion 42 is in a 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 outside 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 a 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 31, and the first sealing protrusion 42 is in sealing engagement with the sidewall of the first hole section 211. Multiple first sealing protrusions 42 are spaced apart along the axial direction of the insert 31. By using multiple first sealing protrusions 42, a multi-layered waterproof barrier can be formed, significantly improving waterproofing capabilities and preventing liquid from seeping from between the insertion hole 21 and the connector 30 to the connector 11, effectively protecting the circuit safety of the lamp 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: 2.0 ≤ L1 / T ≤ 3.0. This lower limit of L1 / T ensures that when the end of the first sealing protrusion 42 abuts against the wall of the first hole section 211, the end of the first sealing protrusion 42 is compressed to both sides, providing space on both sides (space equal to one thickness T) to accommodate the deformed end of the first sealing protrusion 42. This improves the sealing and waterproofing effect and reduces the difficulty of installation due to insufficient space at the deformed end of the first sealing protrusion 42. The upper limit of L1 / T limits the space between two adjacent first sealing protrusions 42, thereby controlling the amount of air contained between them. Since the insert 30 is located 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 sealed space. By controlling the upper limit of L1 / T, the amount of air contained in the sealed space can be controlled. This avoids the problem of high pressure within the sealed space due to thermal expansion of air in a high-temperature environment, which could lead to seal failure of the first sealing ring when the amount of air in the sealed space is large, thus improving the sealing effect. In summary, limiting L1 / T, while providing suitable space for the first sealing ring 42 after extrusion deformation, reduces the possibility of seal failure due to 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 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 is sealed to the side wall of the second hole section 212. There is one second sealing protrusion 52; or, there are multiple second sealing protrusions 52 spaced apart along the axial direction of the insert cylinder 31, with the number of first sealing protrusions 42 greater than 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, allowing the thickness of the insertion protrusion 32 along the axial direction of the insert cylinder 31 to be thinner. This allows the length of the larger second hole section 212 along the axial direction of the insert cylinder 31 to be shorter, thereby reducing the overall volume of the hole while ensuring waterproofing, improving the structural strength of the rear shell 20, and increasing the service life and operational stability of the display device.

[0049] like Figure 6 As shown, a first mounting groove 323 is provided on the circumferential surface of the insertion protrusion ring 32, and the second elastic sealing ring 50 is disposed within the first mounting groove 323. A plurality of receiving grooves 324 are provided on the bottom wall of the first mounting groove 323 at intervals along the circumference of the insertion protrusion ring 32. 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 shifting relative to the insertion protrusion ring 32 along the front-back direction of the lamp plate, improves the connection reliability between the insertion protrusion ring 32 and the second elastic sealing ring 50, and thus improves the sealing reliability. The arrangement of multiple receiving grooves 324 allows a portion of the second elastic sealing ring 50 to be squeezed into the multiple receiving grooves 324 when it abuts against the second hole segment 212. This increases the contact area between the second elastic sealing ring 50 and the insertion protrusion ring 32, increases the friction between the second elastic sealing ring 50 and the insertion protrusion ring 32, reduces the sliding of the second elastic sealing ring 50 relative to the insertion protrusion ring 32 along the circumferential direction of the insertion protrusion ring 32, and also reduces the sliding of the second elastic sealing ring 50 relative to the insertion protrusion ring 32 along the front-back direction of the lamp panel, thereby improving the sealing reliability.

[0050] In this embodiment, the insertion protrusion ring 32 is a plastic part. The arrangement of multiple receiving grooves 324 can reduce the solid volume of the insertion protrusion ring 32, reduce the local solid aggregation of the insertion protrusion ring 32, reduce the possibility of injection molding defects, 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 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 protrusion 42 is in sealing fit with the side wall of the first hole section 211. The relationship between the diameter D1 of the first sealing protrusion 42 and the hole diameter D2 of the first hole section 211 satisfies: 1.0mm ≤ D1 - D2 ≤ 1.6mm. By limiting the relationship between D1 and D2, the interference between the first sealing protrusion 42 and the first hole section 211 is controllable. By setting the lower limit of D1-D2, the end of the first sealing protrusion 42 can abut against the side wall of the first hole section 211, thereby achieving reliable waterproofing. By setting the upper limit of D1-D2, the problem of the first sealing protrusion 42 slipping out of the first hole section 211 due to excessive force when the end of the first sealing protrusion 42 abuts against the side wall of the first hole section 211 is avoided, thereby improving the sealing reliability.

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

[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 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 is in sealing fit with the sidewall of the second hole section 212. The relationship between the diameter D3 of the second sealing protrusion 52 and the hole diameter D4 of the second hole section 212 satisfies: 1.0mm ≤ D3 - D4 ≤ 1.6mm. By limiting the relationship between D3 and D4, the interference between the second sealing protrusion 52 and the second hole section 212 is controllable. By setting the lower limit of D3-D4, the end of the second sealing protrusion 52 can abut against the sidewall of the second hole section 212, thereby achieving reliable waterproofing. By setting the upper limit of D3-D4, the problem of the second sealing protrusion 52 slipping out of the second hole section 212 due to excessive force when the end of the second sealing protrusion 52 abuts against the sidewall of the second hole section 212 is avoided, thereby improving the sealing reliability.

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

[0055] like Figure 3 and Figure 4As shown, the rear shell 20 is also provided with a flange 22 and a retaining ring 23. The retaining ring 23 is located inside the first hole section 211, and the flange 22 connects the retaining ring 23 to the side wall of the hole in the first hole section 211. The side wall of the hole in 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 the retaining ring 23 increases the structural complexity at the insertion hole. By forming the slot 24, the path of liquid entering the insertion hole 21 from between the insert 30 and the rear shell 20 becomes more complex, increasing the difficulty of liquid entry and further improving the waterproof performance of the first elastic sealing ring 40. Furthermore, the slot 24 is easy to process and has a low production cost.

[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 connector 30. The sealing plate 34 is used to close the socket 21, and the connector 30 is fixedly connected to the rear shell 20. Thus, when the connector 11 on the lamp panel 10 does not require insertion, the sealing plate 34 can close the socket 21, thereby maintaining good waterproofing, preventing liquid intrusion in the unplugged state, further enhancing overall waterproofing, and reducing maintenance costs. Preferably, the insertion protrusion 32 of the connector 30 is fixedly connected to the rear shell 20. The insert 31, the insertion protrusion 32, and the sealing plate 34 are integrally formed.

[0057] In some embodiments, such as Figure 5 as well as Figure 6 As shown, the display module assembly also includes a first fastener 81 for connecting the insertion protrusion 32 and the rear housing 20. The insertion protrusion 32 has a first mounting hole 322, and the rear housing 20 has a second mounting hole. The first fastener 81 passes through both the first mounting hole 322 and the second mounting hole. The second mounting hole is a blind hole. In the projection onto the surface of the lamp panel 10 near the rear housing 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 insertion hole 21 through the first mounting hole 322 from between the first elastic sealing ring 40 and the insertion member 30. The insertion protrusion 322 has a positioning protrusion 321 on its surface facing the lamp panel 10, and the first mounting hole 322 penetrates the positioning protrusion 321. The rear housing 20 has a positioning groove on its surface away from the lamp panel 10, and the second mounting hole penetrates the bottom wall of the positioning groove. In this way, when the first fastener 81 connects the insertion protrusion 32 to the rear shell 20, the positioning protrusion 321 and the positioning groove can be positioned and engaged, so that the fixed position of the insertion piece 30 on the rear shell 20 is more accurate.

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

[0059] like Figure 4 , Figure 7 as well as Figure 8 As shown, in some other embodiments, the connector 30 is provided with a clearance hole 33 communicating with the socket 21. The clearance hole 33 penetrates the surface of the connector 30 away from the lamp panel 10. A third elastic sealing ring 60 is provided on the surface of the connector 30 away from the lamp panel 10. The third elastic sealing ring 60 surrounds the outside of the clearance hole 33, and the end of the third elastic sealing ring 60 protrudes from the surface of the connector 30 away from the lamp panel 10. In this way, when the connector 11 on the lamp panel 10 needs to be plugged in, the external plugging structure (such as the power supply box 70 mentioned below) can pass through the clearance hole 33 and extend into the socket 21 to plug in with the connector 11 on the lamp panel 10. Furthermore, the third elastic sealing ring 60 allows for a sealed fit with the external plug-in structure (such as the power supply box 70 described below) to prevent liquid from entering the socket 21 between the external plug-in structure (such as the power supply box 70 described below) and the plug-in 30, effectively protecting the circuit safety of the lamp board 10. Placing the third elastic sealing ring 60 on the surface of the plug-in 30 facing away from the lamp board 10 increases the waterproof protection of the external plug-in structure along the direction of movement during insertion. This design broadens the waterproof range, effectively preventing liquid ingress even when the plug-in 30 is connected to the external plug-in structure, ensuring the protection capability of the display module assembly under various connection conditions.

[0060] Furthermore, the above-mentioned arrangement enables the plug-in component 30 to move synchronously with the external plug-in structure (such as the power supply box 70 in the following text) when it is plugged into the plug-in 11 of the lamp board 10, thereby allowing the plug-in component 30 to be inserted into the socket 21, thus improving the plug-in efficiency and ease of use.

[0061] In other embodiments, such as Figure 8 As shown, the connector 30 also includes a retaining ring 35 connected to the insert 31. The retaining ring 35 protrudes radially from the inner surface of the insert 31, and an clearance hole 33 is formed on the inner surface of the retaining ring 35. A connecting sleeve 36 is provided on the surface of the connector 30 facing away from the lamp panel 10. Specifically, the connecting sleeve 36 is provided on the retaining ring 35. A third mounting hole is provided on the surface of the power supply box 70 facing the lamp panel 10. The display module assembly also includes a second fastener 82 for connecting the connector 30 and the power supply box 70. The second fastener 82 passes through the third mounting hole and the connecting sleeve 36 to fix the connector 30 and the power supply box 70. Furthermore, when the connector 30 and the power supply box 70 are fixedly connected, the connecting sleeve 36 is inserted into the third mounting hole and engages with the third mounting hole to further improve the reliability of the fixed connection between the connector 30 and the power supply box 70, and also facilitates the positioning of the connector 30 and the power supply 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 member 30, and the third sealing protrusion 62 extends in a direction away from the lamp panel 10. The end of the third sealing protrusion 62 protrudes from the surface of the plug-in member 30 away from the lamp panel 10. This allows the third elastic sealing ring 60 to be connected to the plug-in member 30 via the third connecting ring body 61, making the connection between the third elastic sealing ring 60 and the plug-in member 30 more convenient and reliable. When the third elastic sealing ring 60 is sealed with an external plug-in structure (such as the power supply box 70 in the following text), the third sealing protrusion 62 increases the amount of deformation when the third elastic sealing ring 60 comes into contact with the external plug-in structure (such as the power supply box 70 in the following text), thereby improving the waterproof effect.

[0063] like Figure 9 As shown, the surface of the connector 30 facing away from the lamp panel 10 is provided with a second mounting ring groove 37 and a clearance ring groove 38. The second mounting ring groove 37 and the clearance ring groove 38 are connected. The third connecting ring 61 is disposed in the second mounting ring groove 37, and the third sealing convex ring 62 is at least partially located in the clearance ring groove 38. There is a clearance gap 381 between the groove sidewall of the clearance ring groove 38 and the third sealing convex ring 62. In this way, when the third connecting ring 61 abuts against the external plug-in structure (such as the power box 70 in the following text), the end of the third connecting ring 61 is compressed and deformed. The clearance gap 381 can accommodate the compressed and deformed end of the third connecting ring 61. Furthermore, the compressed and deformed end of the third connecting ring 61 can fill the clearance 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 in the following text), thereby improving the sealing and waterproofing effect.

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

[0065] like Figure 9 As shown, the distance L2 from the end of the third sealing ring 62 protruding from the surface of the connector 30 away from the lamp panel 10 satisfies: 0.5mm ≤ L2 ≤ 0.8mm. By limiting the range of L2 as described above, the end of the third sealing ring 62 can abut against the external connector structure (such as the power box 70 in the following text), thereby achieving reliable waterproofing. It also avoids the problem that if L2 is too large, the force when the third sealing ring 62 abuts against the external connector structure (such as the power box 70 in the following text) will be too great, making installation inconvenient.

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

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

[0068] It should be noted that the surface of the connector 30 facing away from the lamp panel 10 refers to the surface of the connector 30 without the avoidance ring groove.

[0069] like Figure 1 and Figure 2 As shown, this application also provides a display device, which includes a display module assembly, the display module assembly being the aforementioned display module assembly. Since the aforementioned display module assembly can solve the problem in related technologies where display devices are easily infiltrated by liquids or moisture, affecting the lifespan of the display device, a display device having this display module assembly can solve the same technical problem.

[0070] like Figure 1 and Figure 2 As shown, this application also provides a display device, which includes a display module assembly and a power supply box 70. The display module assembly is the aforementioned display module assembly. The connector 30 is fixedly connected to the power supply box 70, and the third elastic sealing ring 60 is sealed to the surface of the power supply box 70. The power supply box 70 is provided with a connector hole communicating with the clearance hole 33. In this way, the sealing cooperation between the third elastic sealing ring 60 and the surface of the power supply box 70 forms waterproof protection from the direction of the power supply box 70. This design not only protects the display module from liquid intrusion but also ensures the safe use of the power supply box 70, avoiding display device failure caused by power short circuit, thereby improving the reliability of the entire display device and its versatility for outdoor applications. By providing a connector hole communicating with the clearance hole 33 on the power supply box 70, it is convenient for the internal structure of the power supply box 70 to be connected to the connector 11. Furthermore, by fixing the connector 30 to the power supply box 70, the third elastic sealing ring 60 located between the power supply box 70 and the connector protrusion 32 can be compressed, thereby achieving front waterproofing (waterproofing along the direction from the front side to the rear side of the lamp panel). The first elastic sealing ring 40, located on the insert 31, provides side waterproofing (waterproofing along the direction perpendicular to the front side to the rear side of the lamp panel), facilitating the separation and assembly of the connector 30 and the rear housing 20. Thus, by fixing the connector 30 to the power supply box 70 and allowing the connector 30 to be separated from the rear housing 20, the display module (including the lamp panel 10 and the rear housing 20) can be easily disassembled and installed on the power supply box 70, thereby enabling front and rear maintenance of the display module.

[0071] In some embodiments, the connector 30 and the power supply box 70 are fixedly connected by screws or other fasteners. The screws and other fasteners compress the third elastic sealing ring 60, making the sealing fit between the third elastic sealing ring 60 and the surface of the power supply box 70 more reliable and achieving better waterproofing. Four screws are used to ensure the stability of the connection between the connector 30 and the power supply box 70, and also to increase the compressive force on the third elastic sealing ring 60, thereby improving the sealing performance.

[0072] In the description of this utility model, it should be understood that "multiple" means a quantity of two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or 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 construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0073] Furthermore, the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0074] The above description is merely a preferred embodiment and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A display module assembly, characterized in that, include: A lamp panel (10) is provided with a connector (11); The rear shell (20) is disposed on one side of the lamp panel (10). The rear shell (20) is provided with a socket (21) surrounding the outside of the plug (11). The socket (21) includes a first hole segment (211) and a second hole segment (212) that are connected. The first hole segment (211) is located on the side of the second hole segment (212) close to the lamp panel (10). The projection of the first hole segment (211) on the lamp panel (10) is located within the projection of the second hole segment (212) on the lamp panel (10). The second hole segment (212) penetrates the surface of the rear shell (20) away from the lamp panel (10). A connector (30) is capable of being inserted into the socket (21). The connector (30) includes a plug (31) and a plug-in protrusion (32) connected to the plug (31). The plug-in protrusion (32) protrudes radially from the outer surface of the plug (31). The plug (31) can be inserted into the first hole (211), and the plug-in protrusion (32) can be inserted into the second hole (212). A first elastic sealing ring (40) is disposed on the insert (31), the insert (31) is inserted into the first hole (211), the first elastic sealing ring (40) is located between the insert (31) and the hole sidewall of the first hole (211), and the first elastic sealing ring (40) is sealed to the hole sidewall of the first hole (211). The second elastic sealing ring (50) is disposed on the insertion protrusion ring (32), which is inserted into the second hole section (212). The second elastic sealing ring (50) is located between the insertion protrusion ring (32) and the hole sidewall of the second hole section (212), and the second elastic sealing ring (50) is sealed to the hole sidewall of the second hole section (212).

2. The display module assembly according to claim 1, characterized in that, 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 (31), and the first sealing protrusion (42) is in sealing engagement with the sidewall of the first hole section (211); and / or, The second elastic sealing ring (50) includes a second connecting ring body (51) and a second sealing protrusion ring (52) disposed on the outside of the second connecting ring body (51). The second connecting ring body (51) is connected to the insertion protrusion ring (32), and the second sealing protrusion ring (52) is sealed to the side wall of the second hole section (212).

3. The display module assembly according to claim 1, characterized in that, The first elastic sealing ring (40) includes a first connecting ring body (41) and a first sealing protrusion ring (42) disposed on the outside of the first connecting ring body (41). The first connecting ring body (41) is connected to the insert (31). The first sealing protrusion ring (42) is sealed to the side wall of the first hole section (211). The first sealing protrusion ring (42) consists of a plurality of rings spaced apart along the axial direction of the insert (31).

4. The display module assembly according to claim 3, characterized in that, 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) satisfy the following condition: 2.0≤L1 / T≤3.

0.

5. The display module assembly according to claim 3, characterized in that, The second elastic sealing ring (50) includes a second connecting ring body (51) and a second sealing protrusion ring (52) disposed on the outside of the second connecting ring body (51). The second connecting ring body (51) is connected to the insertion protrusion ring (32), and the second sealing protrusion ring (52) is sealed to the side wall of the second hole section (212). The second sealing protrusion (52) is one; or, The second sealing protrusion (52) consists of a plurality of protrusions spaced apart along the axial direction of the insert (31), and the number of the first sealing protrusions (42) is greater than the number of the second sealing protrusions (52).

6. The display module assembly according to claim 1, characterized in that, The circumferential surface of the insertion protrusion ring (32) is provided with a first mounting ring groove (323), and the second elastic sealing ring (50) is disposed in the first mounting ring groove (323); the bottom wall of the first mounting ring groove (323) is provided with a plurality of receiving grooves (324) spaced apart along the circumference of the insertion protrusion ring (32).

7. The display module assembly according to claim 1, characterized in that, The first elastic sealing ring (40) includes a first connecting ring body (41) and a first sealing protrusion ring (42) disposed 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 protrusion ring (42) is in sealing fit with the sidewall of the first hole section (211). The relationship between the diameter D1 of the first sealing protrusion 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 protrusion ring (52) disposed on the outside of the second connecting ring body (51). The second connecting ring body (51) is connected to the insertion protrusion ring (32), and the second sealing protrusion ring (52) is sealed to the side wall of the second hole section (212). The relationship between the diameter D3 of the second sealing protrusion 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, characterized in that, The rear shell (20) is also provided with a flange (22) and a retaining ring (23). The retaining ring (23) is disposed on the inner side of the first hole segment (211). The flange (22) is connected between the retaining ring (23) and the hole sidewall of the first hole segment (211). The hole sidewall of the first hole segment (211), the flange (22), and the retaining ring (23) form a slot (24). The insert (31) is inserted into the slot (24). And / or, the display module assembly also includes a sealing plate (34) connected to the plug-in (30). The sealing plate (34) is used to close the plug hole (21). The plug-in (30) or the sealing plate (34) is fixedly connected to the rear shell (20).

9. The display module assembly according to claim 1, characterized in that, The connector (30) is provided with a clearance hole (33) communicating with the socket (21). The clearance hole (33) penetrates the surface of the connector (30) away from the lamp plate (10). A third elastic sealing ring (60) is provided on the surface of the connector (30) away from the lamp plate (10). The third elastic sealing ring (60) surrounds the outside of the clearance hole (33). The end of the third elastic sealing ring (60) protrudes from the surface of the connector (30) away from the lamp plate (10).

10. The display module assembly according to claim 9, characterized in that, 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 (30). The third sealing protrusion (62) extends in a direction away from the lamp plate (10). The end of the third sealing protrusion (62) protrudes from the surface of the plug (30) away from the lamp plate (10).

11. The display module assembly according to claim 10, characterized in that, The connector (30) has a second mounting groove (37) and a clearance groove (38) on its surface away from the lamp plate (10). The second mounting groove (37) and the clearance groove (38) are connected. The third connecting ring (61) is disposed in the second mounting groove (37). The third sealing convex ring (62) is at least partially located in the clearance groove (38). The groove sidewall of the clearance groove (38) and the third sealing convex ring (62) have a clearance gap (381). And / or, The distance L2 from the end of the third sealing ring (62) protruding from the surface of the connector (30) away from the lamp plate (10) satisfies: 0.5mm≤L2≤0.8mm.

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 plug (30) is fixedly connected to the power box (70), the third elastic sealing ring (60) is sealed to the surface of the power box (70), and the power box (70) is provided with a plug hole communicating with the clearance hole (33).

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