A waterproof connecting device and a display device

Abstract

This utility model discloses a waterproof connection device and a display device, belonging to the technical field of display devices. The cavity inside the housing of the waterproof connection device is provided with a circuit board. The pins on the circuit board pass through the first mounting hole of the housing so as to be inserted into the slot on the display module. The cavity is filled with sealant, so that even if the housing leaks water accidentally, the sealant can protect the circuit board. A sealing structure is provided on the housing, which is arranged around the first mounting hole. The sealing structure is connected with the insertion structure of the display module to prevent liquid from seeping in and corroding the pins. The sealing structure and the sealant greatly improve the waterproof performance of the waterproof connection device.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to a waterproof connection device and a display device. Background Technology

[0002] As market demand for waterproofing of outdoor LED displays increases, both the displays and their accessories need improved waterproofing, especially underwater performance. Each display module of an LED display needs to be electrically connected to the display control box via cables, with waterproof connectors at the ends of the cables for insertion into the display modules. Existing waterproof connectors achieve waterproofing by sealing the gap between the connector and the display module with a sealing sleeve. However, this type of waterproofing structure has a low waterproofing level. When the LED display is placed underwater, the sealing sleeve can still leak, causing the waterproof connector to fail due to water ingress. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a waterproof connection device and display device to solve the problem of insufficient waterproof performance of the current display module waterproof plug.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A waterproof connection device, including a housing;

[0006] The housing has a cavity, a circuit board is provided in the cavity, the housing has a first mounting hole, pins on the circuit board pass through the first mounting hole, and the cavity is filled with sealant.

[0007] The housing is provided with a sealing structure surrounding the first mounting hole, and the sealing structure is used to connect with the plug-in structure of the display module.

[0008] Preferably, the housing has a potting hole that connects the cavity to the outside, and the potting hole is located between the first mounting hole and the sealing structure.

[0009] Preferably, there are multiple glue-filling holes arranged around the first mounting hole.

[0010] Preferably, the sealing structure includes a first mounting groove surrounding the first mounting hole and a first sealing ring disposed within the first mounting groove.

[0011] Preferably, the sealing structure includes a second mounting groove surrounding the first mounting hole and a second sealing ring disposed within the second mounting groove;

[0012] The second mounting groove is located between the first mounting hole and the first mounting groove, and the depth of the second mounting groove is greater than the depth of the first mounting groove.

[0013] Preferably, the thickness of the outer contour of the first sealing ring is greater on both sides than the thickness in the middle.

[0014] Preferably, it also includes a cover plate;

[0015] The housing has an installation opening, which is opposite to the first mounting hole. The installation opening is used to expose the circuit board inside the cavity to the outside.

[0016] The cover plate is detachably installed over the mounting port.

[0017] Preferably, the housing has a second mounting hole for threading a cable through, and the end of the cable passes through the cavity.

[0018] Preferably, the device further includes a limiting bracket, which is disposed adjacent to the housing. One end of the limiting bracket is connected to the cable, and the other end of the limiting bracket is used to connect to the display module.

[0019] To solve the same technical problem, this utility model also provides a display device, including the waterproof connection device as described above.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] The cavity inside the housing contains a circuit board, and pins on the circuit board pass through the first mounting hole of the housing to be inserted into the slot on the display module. The cavity is filled with sealant, which can protect the circuit board even if the housing leaks water accidentally. The housing is provided with a sealing structure arranged around the first mounting hole. The sealing structure is connected with the insertion structure of the display module to prevent liquid from seeping in and corroding the pins. The sealing structure and sealant greatly improve the waterproof performance of the waterproof connection device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the waterproof connection device of the utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the waterproof connection device of the utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the display device of the utility model;

[0025] Figure 4 This is a cross-sectional schematic diagram of the display device of the utility model;

[0026] In the figure: 1. Display device; 10. Housing; 11. Cavity; 12. First mounting hole; 13. Glue hole; 14. First mounting groove; 141. First sealing ring; 15. Second mounting groove; 151. Second sealing ring; 16. Mounting port; 17. Second mounting hole; 20. Circuit board; 21. Pin; 30. Cover plate; 40. Cable; 50. Limiting bracket; 60. Display module; 61. Slot; 62. Extension. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Example 1

[0031] Combination Figure 1 and Figure 2 As shown, the waterproof connection device of this utility model is schematically illustrated, including a housing 10.

[0032] like Figure 2The housing 10 has a cavity 11, within which a circuit board 20 is housed. The circuit board 20 is mounted within the cavity 11 using existing screws or bolts or other fasteners. The housing 10 has a first mounting hole 12 through which pins 21 on the circuit board 20 pass. The number of pins 21 on the circuit board 20 is multiple, and the number of first mounting holes 12 corresponds to the number of pins 21. Each pin 21 passes through one first mounting hole 12, allowing it to be inserted into a slot 61 on the display module 60 for electrical connection. In some embodiments, there is one first mounting hole 12 and multiple pins 21, all passing through the same first mounting hole 12. The housing 10 also has a second mounting hole 17 for a cable 40. The end of the cable 40 passes through the cavity 11 and is connected to the circuit board 20. The cavity 11 is filled with sealant, which covers at least the surface of the circuit board 20 and part of the pins 21. The sealant can improve the waterproof performance of the circuit board 20. Even if the housing 10 leaks water, the sealant can still prevent the circuit board 20 from being damaged by moisture.

[0033] The housing 10 is provided with a sealing structure surrounding the first mounting hole 12. The sealing structure is used to connect with the plug-in structure of the display module 60. The sealing structure can prevent external liquids from corroding the pins 21 that pass through the first mounting hole 12 and the slots 61 on the display module 60. The sealing structure and sealant can significantly improve the waterproof performance of this waterproof connection device.

[0034] Specifically, the housing 10 has a potting hole 13 that connects the cavity 11 to the outside. The potting hole 13 is located between the first mounting hole 12 and the sealing structure. Installation and maintenance personnel can inject sealant into the cavity 11 of the housing 10 through the potting hole 13. The position of the potting hole 13 allows the injected sealant to spread more quickly to the circuit board 20 and the connection between the circuit board 20 and the pin 21. Preferably, there are multiple potting holes 13, which are arranged around the first mounting hole 12. Installation and maintenance personnel can inject sealant into the multiple potting holes 13 in turn to ensure that the sealant in the cavity 11 completely covers the circuit board 20 and the connection between the circuit board 20 and the pin 21.

[0035] Furthermore, the sealing structure includes a first mounting groove 14 surrounding the first mounting hole 12, a first sealing ring 141 disposed within the first mounting groove 14, a second mounting groove 15 surrounding the first mounting hole 12, and a second sealing ring 151 disposed within the second mounting groove 15. The first mounting groove 14, the first sealing ring 141, the second mounting groove 15, and the second sealing ring 151 together form two waterproof structures. The first mounting groove 14 is used to accommodate the first sealing ring 141, and the second mounting groove 15 is used to accommodate the second sealing ring 151. In addition, the second mounting groove 15 is located between the first mounting hole 12 and the first mounting groove 14, and the depth of the second mounting groove 15 is greater than the depth of the first mounting groove 14. An extension 62 is provided around the slot 61 of the display module 60, that is, the extension 62 is annular. The extension 62 passes through the second mounting groove 15, and the end of the extension 62 abuts against and compresses the second sealing ring 151 to improve the waterproof performance. In this embodiment, the thickness on both sides of the outer contour of the first sealing ring 141 is greater than the thickness in the middle. When the structure around the slot 61 of the display module 60 compresses the first sealing ring 141, the two sides of the outer contour of the first sealing ring 141 are deformed by the compression, which can form two waterproof defense lines and improve the waterproof sealing performance.

[0036] To facilitate soldering operations between the circuit board 20 and the pins 21 by installation and maintenance personnel, the waterproof connection device also includes a cover plate 30. The housing 10 has an installation port 16, which is positioned opposite to the first installation hole 12. The installation port 16 is used to expose the circuit board 20 inside the cavity 11 to the outside. Installation and maintenance personnel can insert a soldering gun into the installation port 16 to perform soldering and maintenance on the connection between the circuit board 20 and the pins 21. The cover plate 30 can be detachably placed on the installation port 16 using existing screws or bolts or other fasteners. After the installation and maintenance personnel complete the soldering operation on the circuit board 20, they place the cover plate 30 on the installation port 16. Finally, they apply glue to the cavity 11 through the glue-filling hole 13.

[0037] To prevent the cable 40 from swinging and causing the connection between the cable 40 and the second mounting hole 17 to loosen, the waterproof connection device also includes a limiting bracket 50. The limiting bracket 50 is disposed adjacent to the housing 10. One end of the limiting bracket 50 is connected to the cable 40, and the other end of the limiting bracket 50 is used to connect to the display module 60. The limiting bracket 50 can fasten the cable 40 to the display module 60. Even if the other end or the middle of the cable 40 swings, the limiting bracket 50 can still fix the cable 40 together with the housing 10 to prevent the housing 10 from loosening and being damaged by water.

[0038] Example 2

[0039] like Figure 3 and Figure 4This embodiment discloses a display device 1, including a display module 60 and the aforementioned waterproof connection device. The front of the display module 60 is provided with a plurality of LED beads for displaying images. The back of the display module 60 is provided with a slot 61, and an extension 62 is provided around the slot 61. The housing 10 is inserted into the display module 60, and the pin 21 is inserted into the slot 61. The extension 62 passes through the second mounting groove 15 and abuts against the second sealing ring 151. The first sealing ring 141 abuts against the structure around the slot 61, which enables quick insertion of the waterproof connection device and ensures that the waterproof connection device is waterproof.

[0040] In summary, the cavity 11 inside the housing 10 is equipped with a circuit board 20, and the pins 21 on the circuit board 20 pass through the first mounting hole 12 of the housing 10 so as to be inserted into the slot 61 on the display module 60. The cavity 11 is filled with sealant, so even if the housing 10 leaks water accidentally, the sealant can protect the circuit board 20. The housing 10 is provided with a sealing structure arranged around the first mounting hole 12. The sealing structure is connected with the insertion structure of the display module 60 to prevent liquid from seeping in and corroding the pins 21. The sealing structure and the sealant greatly improve the waterproof performance of the waterproof connection device.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A waterproof connection device, characterized by, Includes the casing; The housing has a cavity, a circuit board is provided in the cavity, the housing has a first mounting hole, pins on the circuit board pass through the first mounting hole, and the cavity is filled with sealant. The housing is provided with a sealing structure surrounding the first mounting hole, and the sealing structure is used to connect with the plug-in structure of the display module.

2. The waterproof connection device according to claim 1, characterized in that The housing has a potting hole that connects the cavity to the outside, and the potting hole is located between the first mounting hole and the sealing structure.

3. The waterproof connection device according to claim 2, characterized in that The number of glue-filling holes is provided in multiples, and the multiple glue-filling holes are arranged around the first mounting hole.

4. The waterproof connection device according to claim 1, characterized in that, The sealing structure includes a first mounting groove surrounding the first mounting hole and a first sealing ring disposed within the first mounting groove.

5. The waterproof connection device according to claim 4, characterized in that The sealing structure includes a second mounting groove surrounding the first mounting hole and a second sealing ring disposed within the second mounting groove; The second mounting groove is located between the first mounting hole and the first mounting groove, and the depth of the second mounting groove is greater than the depth of the first mounting groove.

6. The waterproof connection device according to claim 4, characterized in that, The thickness of the outer contour of the first sealing ring is greater on both sides than in the middle.

7. The waterproof connection device according to claim 1, characterized in that, It also includes a cover plate; The housing has an installation opening, which is opposite to the first mounting hole. The installation opening is used to expose the circuit board inside the cavity to the outside. The cover plate is detachably installed over the mounting port.

8. The waterproof connection device according to any one of claims 1 to 7, characterized in that, The housing has a second mounting hole for threading a cable through it, and the end of the cable passes through the cavity.

9. The waterproof connection device according to claim 8, characterized in that It also includes a limiting bracket, which is disposed adjacent to the housing. One end of the limiting bracket is connected to the cable, and the other end of the limiting bracket is used to connect to the display module.

10. A display device, characterized by Includes the waterproof connection device as described in any one of claims 1 to 9.

Images