A new type of semi-glue-filled waterproof digital tube

Abstract

The utility model discloses a novel semi-glue-filled waterproof digital tube, comprising a plastic shell, a PCB assembled in the plastic shell, and a display film attached to the plastic shell, wherein a plurality of light-emitting wicks are arranged on the PCB, a glue filling layer is arranged between the back of the PCB and the plastic shell, at least two positioning rivet posts are arranged inside the plastic shell, the positioning rivet posts include a support post and a hot rivet post, the hot rivet post is located at the top of the support post, the diameter of the support post is larger than the diameter of the hot rivet post, a positioning slot hole matching the support post and the hot rivet post is arranged on the PCB, the hot rivet post passes through the positioning slot hole and is hot-riveted on the back of the PCB, and a sealing convex ring tightly fitting with the back of the PCB is arranged on the inner wall of the plastic shell. The utility model can prevent glue from leaking and contacting the PCB and the display area of ​​the plastic shell while maintaining waterproofness, thereby ensuring a good and stable display effect of the digital tube.

Description

Technical Field

[0001] The utility model belongs to the field of digital tubes, and in particular relates to a novel semi-glue-filled waterproof digital tube. Background Art

[0002] The core components of digital tubes include plastic shell and PCB (circuit board). Since digital tubes are used in many scenarios, especially outdoor scenarios, they are required to have excellent waterproof performance.

[0003] like Figure 1 As shown, the digital tube includes a plastic shell 1, a PCB2, a light wick 3, and a display film 4. In order to improve the waterproof performance of the digital tube, the PCB2 is built into the plastic shell 1, and the two sides of the PCB2 in the plastic shell 1 are filled with glue to form glue filling layers 5 on both sides. The glue layer can well protect the PCB2 and prevent external rainwater from contacting the PCB2. Although this fully glue-filled digital tube has good waterproof performance, it has the problems of unstable structure of the PCB2 in the plastic shell 1 and large glue consumption.

[0004] In order to solve these two problems, the following Figure 2 The semi-glue-filled structure shown in the figure only fills glue on the back side of PCB2 to form a single-sided glue filling layer 5, thereby solving the problem of large glue consumption, and adopts rivet studs 6 to realize the assembly connection between the plastic shell 1 and PCB2 by hot riveting, thereby solving the problem of unstable structure of PCB2 in the plastic shell 1. However, in actual use of this semi-glue-filled digital tube, gaps are easily formed between the rivet studs 6 and PCB2, and gaps are also easily formed between PCB2 and the plastic shell 1. This makes it easy for glue to flow through these gaps to the front side of PCB2 and the shell surface of the plastic shell 1, which will affect the normal use of PCB2 on the one hand, and on the other hand, the glue will contact the display area of ​​the plastic shell 1 and affect the luminous display effect of the digital tube. Summary of the invention

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, a new type of semi-glue-filled waterproof digital tube is provided, which can prevent glue from leaking and contacting the PCB and the plastic shell display area while maintaining waterproofness, thereby ensuring a good and stable display effect of the digital tube.

[0006] Technical solution: To achieve the above-mentioned purpose, the utility model provides a novel semi-potted waterproof digital tube, comprising a plastic shell, a PCB assembled in the plastic shell and a display film attached to the plastic shell, a plurality of light-emitting wicks are arranged on the PCB, a glue filling layer is arranged between the back of the PCB and the plastic shell, at least two positioning rivet columns are arranged inside the plastic shell, the positioning rivet columns include a support column and a hot rivet column, the hot rivet column is located at the top of the support column, the diameter of the support column is larger than the diameter of the hot rivet column, a positioning slot matching the support column and the hot rivet column is arranged on the PCB, the hot rivet column passes through the positioning slot and is hot-riveted to the back of the PCB, and a sealing convex ring tightly fitting with the back of the PCB is arranged on the inner wall of the plastic shell.

[0007] Furthermore, the number of the positioning rivet studs is two, and they are symmetrically arranged inside the plastic shell.

[0008] Furthermore, two positioning rivet posts are respectively located at two ends of the display area of ​​the plastic shell.

[0009] Furthermore, the heat riveting column is coaxially arranged on the supporting column.

[0010] Furthermore, the support column and the hot riveting column are integrally formed.

[0011] Furthermore, the sealing convex ring and the plastic shell are integrally formed.

[0012] Furthermore, a glue-blocking wall is provided in the plastic shell, and the glue-blocking wall is located between the positioning rivet column and the display area of ​​the plastic shell. Even if glue enters the shell surface of the plastic shell, the glue-blocking wall can prevent the glue from flowing to the display area of ​​the plastic shell, thereby avoiding affecting the display effect of the digital tube.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0014] 1. Through the coordinated structural design of the positioning rivet column and the positioning slot hole, a multiple sealing structure can be formed, which can prevent the glue from flowing into the front of the PCB through the gap between the positioning rivet column and the PCB, thereby ensuring the normal use of the PCB.

[0015] 2. The design of the sealing convex ring can improve the sealing between the PCB and the plastic shell, preventing the glue from flowing into the front of the PCB and the shell surface of the plastic shell through the gap between the PCB and the plastic shell, avoiding the glue from affecting the normal display of the digital tube and ensuring the stable display of the digital tube.

[0016] 3. The design of the glue-blocking wall ensures that even if glue enters the shell surface of the plastic shell, the glue-blocking wall can prevent the glue from flowing to the display area of ​​the plastic shell, thereby avoiding affecting the display effect of the digital tube. The normal display of the digital tube is further guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a fully glue-filled digital tube;

[0018] Figure 2 It is a structural schematic diagram of an existing semi-potted digital tube;

[0019] Figure 3 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0020] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0021] like Figure 3 As shown, the utility model provides a novel semi-glue-filled waterproof digital tube, comprising a plastic shell 1, a PCB 2 assembled in the plastic shell 1 and a display film 4 attached to the plastic shell 1, a plurality of light-emitting wicks 3 are arranged on the PCB 2, a glue filling layer 5 is arranged between the back of the PCB 2 and the plastic shell 1, two positioning rivet posts are symmetrically arranged inside the plastic shell 1, the two positioning rivet posts are respectively located at the two ends of the display area 12 of the plastic shell 1, the positioning rivet posts include a support post 7 and a hot rivet post 8, and the hot rivet post 8 is coaxially arranged on the top of the support post 7 The support column 7 and the heat rivet column 8 are integrally formed, the diameter of the support column 7 is larger than the diameter of the heat rivet column 8, and a positioning slot 9 matching the support column 7 and the heat rivet column 8 is provided on the PCB2. The heat rivet column 8 passes through the positioning slot 9 and is heat-riveted on the back of the PCB2. A sealing convex ring 10 that fits tightly with the back of the PCB2 is provided on the inner wall of the plastic shell 1. The sealing convex ring 10 and the plastic shell 1 are integrally formed, and a glue-blocking wall 11 is provided in the plastic shell 1. The glue-blocking wall 11 is located between the positioning rivet column and the display area 12 of the plastic shell 1.

[0022] The above-mentioned novel semi-filled waterproof digital tube has the following advantages in actual use:

[0023] 1. Through the matching structural design of the positioning rivet column and the positioning slot hole 9, a multiple sealing structure can be formed, which can prevent glue from flowing into the front side of PCB2 through the gap between the positioning rivet column and PCB2, thereby ensuring the normal use of PCB2.

[0024] 2. The design of the sealing convex ring 10 can improve the sealing between PCB2 and the plastic shell 1, preventing the glue from flowing into the front of PCB2 and the shell surface of the plastic shell 1 through the gap between PCB2 and the plastic shell 1, thereby avoiding the glue from affecting the normal display of the digital tube and ensuring the stable display of the digital tube.

[0025] 3. The design of the glue-blocking wall 11 prevents the glue from flowing to the display area 12 of the plastic shell 1 even if glue enters the shell surface of the plastic shell 1, thereby avoiding affecting the display effect of the digital tube, and the normal display of the digital tube is further guaranteed.

Claims

1. A novel semi-glue-filled waterproof digital tube, comprising a plastic shell, a PCB assembled in the plastic shell, and a display film attached to the plastic shell, wherein a plurality of light-emitting wicks are arranged on the PCB, and a glue filling layer is arranged between the back of the PCB and the plastic shell, characterized in that: At least two positioning rivet columns are arranged inside the plastic shell, and the positioning rivet columns include a support column and a heat rivet column. The heat rivet column is located at the top of the support column, and the diameter of the support column is larger than the diameter of the heat rivet column. The PCB is provided with positioning slots matching the support column and the heat rivet column. The heat rivet column passes through the positioning slots and is heat-riveted to the back of the PCB. A sealing convex ring tightly fitting with the back of the PCB is provided on the inner wall of the plastic shell.

2. According to claim 1, a novel semi-potted waterproof digital tube is characterized in that: The number of the positioning rivet studs is two, and they are symmetrically arranged inside the plastic shell.

3. A novel semi-potted waterproof digital tube according to claim 2, characterized in that: The two positioning rivets are respectively located at two ends of the display area of ​​the plastic shell.

4. According to claim 1, the novel semi-potted waterproof digital tube is characterized in that: The heat riveting column is coaxially arranged on the supporting column.

5. A novel semi-potted waterproof digital tube according to claim 4, characterized in that: The support column and the hot riveting column are integrally formed.

6. The novel semi-potted waterproof digital tube according to claim 1 is characterized in that: The sealing convex ring and the plastic shell are integrally formed.

7. The novel semi-potted waterproof digital tube according to claim 3 is characterized in that: A glue-blocking wall is arranged inside the plastic shell, and the glue-blocking wall is located between the positioning rivet column and the display area of ​​the plastic shell.

Images