Pedestrian prompting device

Abstract

The utility model discloses a pedestrian prompting device which comprises an upper shell, a lower shell, a circuit board, a loudspeaker, a sealing strip and a vent plug. A connector is arranged on the side face of the lower shell, the connector and the lower shell are integrated in an injection molding mode, and the connector comprises eight metal contact pins. The circuit board is placed in the lower shell, is in crimping fit with the metal pins and is fixed through screws; the loudspeaker is fixed in the upper shell through screws; the upper shell and the lower shell are connected through screws, and a sealing strip and a vent plug are arranged, so that the protective property and the air permeability of the device are guaranteed; and a plurality of mounting holes are formed outside the lower shell, so that the bracket can be flexibly designed to adapt to different mounting environments. The device is easy to assemble, different parts are connected through screws, and installation is convenient; the problems of long production cycle and low production efficiency of the pedestrian prompting device caused by the procedures of dispensing, hot pressing, welding and the like are solved, and meanwhile, the device adopts screw connection, the vent plug and the sealing strip to ensure the protection property, so that the device is convenient to mount and dismount, and the reworking and repairing cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of voice prompt electronic equipment, in particular to a pedestrian prompting device. Background Art

[0002] Traditional pedestrian warning devices mostly use glue dispensing to achieve a sealing effect between the speaker and the shell, and between the upper shell and the lower shell. Although the glue dispensing process can be performed by an automatic glue dispensing machine, it needs to be left to stand for a long time before subsequent assembly, which has a long production cycle. Generally, the internal and external pressure differences are balanced by hot-pressing a breathable membrane, which requires the use of special tooling equipment and cannot be disassembled for rework. The circuit board and the pins are connected by welding, which is complicated to operate and difficult to rework.

[0003] In summary: General pedestrian warning devices have complex production processes, low production efficiency, and once the product is manufactured, it cannot be disassembled and is difficult to rework, making it impossible to adapt to changing customer orders and rework requirements. Utility Model Content

[0004] The purpose of the utility model is to provide a pedestrian prompting device, aiming to overcome the defects of the prior art and solve the problems of complex production process and difficult rework.

[0005] To this end, the present invention proposes a pedestrian warning device, including: an upper shell, a lower shell, a circuit board, a speaker, a sealing strip and a vent plug; a connector is arranged on the side of the lower shell, and the connector and the lower shell are injection-molded as one piece, and the connector contains eight metal pins; one end of the metal pin is located in the connector for mating with an external connector, and the other end is located inside the lower shell; the circuit board is placed in the lower shell, press-fitted with the metal pin, and then fixed by screw one; the speaker is placed in the upper shell and fixed to the inside of the upper shell by screw two; the upper shell and the lower shell are connected by screw three; a plurality of mounting holes are provided on the outside of the lower shell for connecting a sheet metal bracket.

[0006] As a preferred technical solution of the present application, the edge of the upper shell is provided with a downwardly protruding first connecting portion, the edge of the lower shell is provided with a concave second connecting portion, and the sealing strip is placed in the second connecting portion.

[0007] As a preferred technical solution of the present application, a mounting groove is provided in the lower shell, and a ventilation hole is also provided on the outer side of the lower shell. The ventilation hole is communicated with the mounting groove, and the ventilation plug is installed in the mounting groove.

[0008] As a preferred technical solution of the present application, a screw column is provided at each of the four corners of the inner bottom surface of the lower shell, and the circuit board is placed on the screw column. A positioning rib is also provided on the inner wall of the lower shell, and the circuit board is limited by the positioning rib and the inner wall of the lower shell.

[0009] As a preferred technical solution of the present application, an anti-mistake groove is further provided on the opposite side of the circuit board, and the anti-mistake groove cooperates with one of the positioning ribs on the inner side wall of the lower shell.

[0010] As a preferred technical solution of the present application, eight pin holes are provided in the middle of one side of the circuit board, and the metal pins inside the lower shell are crimped with the pin holes to form an interference fit.

[0011] As a preferred technical solution of the present application, a screw column 2 is provided at each of the four corners of the bottom surface of the upper shell, and a mounting hole is provided at each of the four corners of the speaker, and the mounting hole is at the same position as the screw column 2.

[0012] As a preferred technical solution of the present application, the inner side wall of the upper shell is further provided with a second positioning rib and an anti-foolproof column; an anti-foolproof opening is provided on one side of the speaker, and the anti-foolproof opening is at the same position as the anti-foolproof column.

[0013] As a preferred technical solution of the present application, an annular rubber ring is further provided at the bottom of the speaker, an annular sealing platform is provided in the middle of the bottom surface of the upper shell, a boss is provided on the sealing platform, and the boss is pressed into the annular rubber ring.

[0014] As a preferred technical solution of the present application, the upper shell surface is further provided with sound holes, which are evenly distributed in a circular shape.

[0015] This pedestrian warning device features a built-in rubber ring for speaker sealing, sealing strips for the upper and lower shells, a press-fit circuit board, and a vent plug to balance internal and external pressure differences. This solves the long production cycle and low efficiency associated with gluing, hot pressing, and welding processes, while facilitating disassembly and rework.

[0016] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0018] Figure 1 This is an exploded view of the pedestrian reminder device of the present invention;

[0019] Figure 2 This is an axonometric diagram of the pedestrian reminder device of the present invention;

[0020] Figure 3 This is a top view of the pedestrian reminder device of the present invention;

[0021] Figure 4 This is a front view of the pedestrian reminder device of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the lower shell of the pedestrian reminder device of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the upper shell of the pedestrian reminder device of the present invention;

[0024] Figure 7 It is a cross-sectional view of the pedestrian prompting device of the present utility model;

[0025] Figure 8 A partial cross-sectional view of the pedestrian warning device of the present invention Figure 1 ;

[0026] Figure 9 A partial cross-sectional view of the pedestrian warning device of the present invention Figure 2 ;

[0027] Figure 10 This is a cross-sectional view of the lower shell of the pedestrian reminder device of the present invention;

[0028] Figure 11 It is a partial cross-sectional view of the lower shell of the pedestrian warning device of the present invention;

[0029] Explanation of the accompanying drawings: 1. Upper shell; 2. Lower shell; 3. Circuit board; 4. Speaker; 5. Sealing strip; 6. Ventilation plug; 7. Connector; 8. Metal pin; 9. Screw one; 10. Screw two; 11. First connecting part; 12. Second connecting part; 13. Mounting slot; 14. Ventilation hole; 15. Screw three; 16. Mounting hole; 17. Screw column one; 18. Positioning rib one; 19. Pin hole; 20. Anti-fool groove; 21. Mounting hole; 22. Screw column two; 23. Positioning rib two; 24. Anti-fool column; 25. Mounting hole; 26. Anti-fool mouth; 27. Annular rubber ring; 28. Sealing platform; 29. ​​Boss; 30. Sound hole; 31. Mounting hole; 32. Screw column. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] like Figures 1 to 11 As shown, the pedestrian warning device of the present invention includes: an upper shell 1, a lower shell 2, a circuit board 3, a speaker 4, a sealing strip 5 and a vent plug 6; a connector 7 is arranged on the side of the lower shell 2, and the connector 7 and the lower shell 2 are injection-molded as one piece, and the connector 7 contains eight metal pins 8; one end of the metal pins 8 is located in the connector 7 for mating with an external connector, and the other end is located inside the lower shell 2; the circuit board 3 is placed in the lower shell 2, crimped with the metal pins 8, and then fixed by screw 1 9; the speaker 4 is placed in the upper shell 1 and fixed to the inside of the upper shell 1 by screw 2 10; the upper shell 1 and the lower shell 2 are connected by screw 3 15; a plurality of mounting holes 16 are provided on the outside of the lower shell 2 for connecting a sheet metal bracket.

[0032] Specifically, if Figure 1 、 Figure 7 、 Figure 9 As shown, the edge of the upper shell 1 is provided with a downwardly protruding first connecting portion 11, and the edge of the lower shell 2 is provided with a concave second connecting portion 12. The sealing strip 5 is placed in the second connecting portion 12. After the upper shell 1 and the lower shell 2 are assembled by screws 15, the first connecting portion 11 squeezes the sealing strip 5 to achieve a sealing and waterproof effect.

[0033] like Figure 4 、 Figure 10 、 Figure 11 As shown, a mounting groove 13 is provided in the lower shell 2, and a vent hole 14 is also provided on the outer side of the lower shell 2. The vent hole 14 is communicated with the mounting groove 13. The production personnel press the vent plug 6 into the mounting groove 13 to form an interference fit to achieve a waterproof and breathable effect.

[0034] like Figure 5 As shown, a screw column 17 is provided at each of the four corners of the bottom surface of the lower shell 2, and the circuit board 3 is placed on the screw column 17. A positioning rib 18 is also provided on the inner wall of the lower shell 2, and the circuit board 3 is limited by the positioning rib 18 and the inner wall of the lower shell 2.

[0035] like Figure 1 As shown, eight pin holes 19 are provided in the middle of one side of the circuit board 3, and the metal pins 8 inside the lower shell 2 are crimped with the pin holes to form an interference fit; an anti-foolproof groove 20 is also provided on the opposite side of the circuit board 3, and the anti-foolproof groove cooperates with one of the positioning ribs 18 on the inner wall of the lower shell 2 to achieve an anti-foolproof effect during installation.

[0036] A mounting hole 21 is provided at each corner of the circuit board 3. When the circuit board 3 is pressed and positioned with the lower shell 2, a screw 9 is passed through the mounting hole 21 to connect the circuit board 3 with the lower shell 2.

[0037] like Figure 1 、 Figure 6 As shown, a screw column 22 is provided at each of the four corners of the inner bottom surface of the upper shell 1, and a positioning rib 23 and an anti-fool column 24 are also provided on the inner wall of the upper shell 1; a mounting hole 25 is provided at each of the four corners of the speaker 4, and an anti-fool mouth 26 is provided on one side, and the mounting hole 25 is at the same position as the screw column 22, and the anti-fool mouth 26 is at the same position as the anti-fool column 24; the speaker 4 is placed inside the upper shell, and the anti-fool mouth 26 cooperates with the anti-fool column 24 to have an anti-fool effect, and the four sides of the bottom surface of the speaker 4 are limited by the positioning rib 23 on the inner wall of the upper shell 1.

[0038] like Figure 1 、 Figure 6 、 Figure 7 、 Figure 8 As shown, an annular rubber ring 27 is also provided at the bottom of the speaker 4, and an annular sealing platform 28 is provided in the middle of the inner bottom surface of the upper shell 1. A boss 29 is provided on the sealing platform 28. After the speaker 4 is connected to the upper shell 1 by screws 10, the boss 29 is pressed into the annular rubber ring 27 to achieve a sealing and waterproof effect.

[0039] like Figure 2 、 Figure 6 As shown, the surface of the upper shell 1 is further provided with sound holes 30 , which are evenly distributed in a circular shape, and the speaker 4 emits sound through them.

[0040] like Figure 1 、 Figure 2 As shown, the upper shell 1 is provided with a mounting hole 31 at each of its four corners, and the lower shell 2 is provided with a screw column 32 at each of its four corners, and the mounting hole 31 and the screw column 32 are at the same position; during actual production and assembly, the upper shell 1 and the speaker 4 cooperate to form an upper shell semi-finished product, and the lower shell 2 and the circuit board 3, the sealing strip 5, and the air plug 6 cooperate to form a lower shell semi-finished product, and the upper shell semi-finished product and the lower shell semi-finished product are connected together by screws 15 to form a complete pedestrian prompt device.

[0041] The working principle and working process of the pedestrian prompting device of the present utility model are briefly described below.

[0042] This utility model provides a pedestrian warning device with a built-in rubber ring for the speaker, which is then connected to the upper shell via screws. A sealing strip is installed between the upper and lower shells, which are also connected via screws. A vent plug is pre-installed in the lower shell to balance the pressure difference between the inside and outside, thereby achieving a waterproof and breathable effect. Compared to conventional pedestrian warning devices that use glue dispensing for sealing and heat-pressed breathable membranes for ventilation, the pedestrian warning device proposed in this utility model reduces process complexity, improves production efficiency, and reduces production costs.

[0043] 2. This utility model provides a pedestrian warning device that uses crimping instead of soldering for circuit board assembly. During actual production and assembly, after the circuit board completes the previous steps of programming and testing, production personnel place the circuit board in the lower shell. The internal structure of the lower shell restricts the lateral displacement of the circuit board. Tooling equipment is then used to crimp the circuit board to the metal pins in the lower shell, which are then secured with screws. This simplifies the production process and improves production efficiency. It also facilitates disassembly and rework, reducing rework losses and labor costs.

[0044] 3. The pedestrian warning device provided by the present invention has good promotional potential. Traditional pedestrian warning devices often use glue dispensing to achieve a sealing effect between the speaker and the housing, and between the upper shell and the lower shell. Although the glue dispensing process can be performed by an automatic glue dispensing machine, it needs to be left to stand for a long time before subsequent assembly can be carried out. The present pedestrian warning device eliminates the glue dispensing process and uses screw connections. Under the premise of ensuring a satisfactory sealing effect, it greatly shortens the pre-processing time of production, speeds up the production rhythm, and also increases the possibility of automation in the production process of pedestrian warning devices.

[0045] 4. The pedestrian warning device provided by the present invention is also provided with a plurality of mounting holes on the outside. The mounting holes can be flexibly selected to design the bracket shape according to different installation conditions to meet customer requirements. It is also easier to design a bracket with better versatility to adapt to different vehicle models, thereby saving the cost of bracket mold making.

[0046] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A pedestrian prompting device, characterized in that: include: An upper shell (1), a lower shell (2), a circuit board (3), a speaker (4), a sealing strip (5) and a vent plug (6); a connector (7) is arranged on the side of the lower shell (2), the connector (7) and the lower shell (2) are integrally formed by injection molding, and the connector (7) contains eight metal pins (8); one end of the metal pin (8) is located in the connector (7) for matching with an external connector, and the other end is located in the lower shell (2); the circuit board (3) is placed in the lower shell (2), press-fitted with the metal pin (8), and then fixed by screw one (9); the speaker (4) is placed in the upper shell (1) and fixed to the upper shell (1) by screw two (10); the upper shell (1) and the lower shell (2) are connected by screw three (15); a plurality of mounting holes (16) are provided on the outside of the lower shell (2) for connecting to a sheet metal bracket.

2. The pedestrian prompting device according to claim 1, characterized in that: The edge of the upper shell (1) is provided with a downwardly protruding first connecting portion (11), the edge of the lower shell (2) is provided with a concave second connecting portion (12), and the sealing strip (5) is placed in the second connecting portion (12).

3. The pedestrian prompting device according to claim 1, characterized in that: A mounting groove (13) is provided in the lower shell (2), and a vent hole (14) is also provided on the outer side of the lower shell (2). The vent hole (14) is communicated with the mounting groove (13), and the vent plug (6) is installed in the mounting groove (13).

4. The pedestrian prompting device according to claim 1, characterized in that: A screw column (17) is provided at each of the four corners of the bottom surface of the lower shell (2), and the circuit board (3) is placed on the screw column (17). A positioning rib (18) is also provided on the inner wall of the lower shell (2), and the circuit board (3) is limited by the positioning rib (18) and the inner wall of the lower shell (2).

5. The pedestrian prompting device according to claim 4, characterized in that: The opposite side of the circuit board (3) is also provided with an anti-mistake groove (20), and the anti-mistake groove (20) cooperates with one of the positioning ribs (18) on the inner side wall of the lower shell (2).

6. The pedestrian prompting device according to claim 1, characterized in that: Eight pin holes (19) are provided in the middle of one side of the circuit board (3), and the metal pins (8) inside the lower shell (2) are press-fitted with the pin holes to form an interference fit.

7. The pedestrian prompting device according to claim 1, characterized in that: A screw column 2 (22) is provided at each of the four corners of the inner bottom surface of the upper shell (1), and a mounting hole (25) is provided at each of the four corners of the speaker (4), and the mounting hole (25) is located at the same position as the screw column 2 (22).

8. The pedestrian prompting device according to claim 1, characterized in that: The inner side wall of the upper shell (1) is further provided with a second positioning rib (23) and an anti-fool column (24); one side of the speaker (4) is provided with an anti-fool opening (26), and the anti-fool opening (26) is at the same position as the anti-fool column (24).

9. The pedestrian prompting device according to claim 1, characterized in that: An annular rubber ring (27) is also provided at the bottom of the speaker (4), and an annular sealing platform (28) is provided in the middle of the inner bottom surface of the upper shell (1). A boss (29) is provided on the sealing platform (28), and the boss (29) is pressed into the annular rubber ring (27).

10. The pedestrian prompting device according to claim 1, characterized in that: The surface of the upper shell (1) is also provided with sound outlet holes (30), which are evenly distributed in a circular shape.

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