Active integrated electromagnetic buzzer
By introducing waterproof structures and dustproof nets into the active electromagnetic buzzer, the problem of dust and water intrusion is solved, and higher waterproof and dustproof effects are achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202420787044.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-16
AI Technical Summary
Existing active electromagnetic buzzers are susceptible to intrusion by dust and water during use, resulting in short circuits and affecting their normal operation.
An active integrated electromagnetic buzzer including a waterproof structure and a dustproof net was designed. The waterproof structure consisting of an outer cylinder, an inner cylinder, a sealing plate, a communication pipe and a drainage hole was designed to prevent water from entering the inside of the buzzer. At the same time, use a dustproof net to seal the sound hole to prevent dust from entering.
It effectively avoids the damage caused by entering the buzzer internally, improves the service life, and achieves better waterproofing through the drainage system. At the same time, the dustproof net prevents dust from entering, ensuring the normal operation of the buzzer.
Smart Images
Figure CN222281571U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of buzzer equipment, and in particular relates to an active integrated electromagnetic buzzer. Background Art
[0002] Active electromagnetic buzzer is an electronic sounder with an integrated structure, powered by DC voltage, and widely used as a sound-generating device in electronic products such as computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers, etc. Electromagnetic buzzer consists of an oscillator, electromagnetic coil, magnet, vibration diaphragm and shell.
[0003] In order for the sound of the buzzer to be able to dissipate, a corresponding sound hole needs to be set; the setting of the sound hole makes it easy for dust, water, etc. to enter the inside of the buzzer when the buzzer is in use, causing a short circuit in the buzzer and affecting the normal operation of the buzzer. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an active integrated electromagnetic buzzer which can effectively make the buzzer waterproof and dustproof.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an active integrated electromagnetic buzzer, comprising a base plate, on which a shell is arranged; a sound-emitting structure is arranged on the base plate, a sound-emitting hole corresponding to the sound-emitting structure is arranged on the shell, and a waterproof structure cooperating with the sound-emitting hole is arranged in the shell; the waterproof structure comprises an outer cylinder fixedly connected to the shell, the outer cylinder is arranged on the outer periphery of the sound-emitting hole, and connecting holes are evenly distributed at one end of the outer cylinder close to the sound-emitting hole; an inner cylinder corresponding to the connecting hole is arranged between the outer cylinder and the sound-emitting hole, and the inner cylinder is fixedly connected to the shell; a sealing plate is fixedly connected to the bottom of the outer cylinder, connecting pipes are evenly distributed on the bottom of the outer cylinder, and drainage holes connected to the connecting pipes are arranged on the outer periphery of the shell.
[0006] Furthermore, a dustproof net corresponding to the sound-emitting hole is fixedly connected to the shell.
[0007] Furthermore, a water baffle corresponding to the drainage hole is provided on the shell.
[0008] Furthermore, a guide plate corresponding to the connecting pipe is fixedly connected to the sealing plate.
[0009] Furthermore, the sound-generating structure comprises an iron core fixed to the bottom plate, on which an electromagnetic coil is sleeved; a vibration sheet corresponding to the electromagnetic coil is arranged in the shell, and a magnet corresponding to the vibration sheet is also arranged on the shell.
[0010] Furthermore, a PCB board is also provided on the bottom plate, and pins are connected to the PCB board.
[0011] Furthermore, a limiting column is fixedly connected to the bottom plate, and a limiting hole cooperating with the limiting column is provided on the shell.
[0012] Furthermore, the bottom plate is provided with a stabilizing cylinder penetrating through the shell.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] When the utility model is in use, sound is generated through the sound-generating structure, and the sound is emitted through the sound-generating hole. The outer cylinder cooperates with the inner cylinder to make water entering through the sound-generating hole fall onto the blocking plate in the outer cylinder, and the water flows into the drainage hole through the connecting pipe and flows out through the drainage hole, which can effectively prevent water from entering the shell and causing damage to the sound-generating structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a cross-sectional view of the housing in the utility model;
[0017] In the figure: 1. pin, 2. bottom plate, 3. limit column, 4. stabilizing cylinder, 5. electromagnetic coil, 6. vibration plate, 7. shell, 8. water baffle, 9. sound hole, 10. dust net, 11. inner cylinder, 12. outer cylinder, 13. guide plate, 14. connecting hole, 15. connecting pipe, 16. drainage hole. DETAILED DESCRIPTION
[0018] An active integrated electromagnetic buzzer, such as Figure 1 and Figure 2 As shown, it includes a bottom plate 2, on which a shell 7 is provided; a sound-generating structure is provided on the bottom plate 2, a sound-generating hole 9 corresponding to the sound-generating structure is provided on the shell 7, and a waterproof structure cooperating with the sound-generating hole 9 is provided inside the shell 7; the waterproof structure includes an outer cylinder 12 fixedly connected to the shell 7, the outer cylinder 12 is provided at the periphery of the sound-generating hole 9, and connecting holes 14 are evenly distributed at one end of the outer cylinder 12 close to the sound-generating hole 9; an inner cylinder 11 corresponding to the connecting holes 14 is provided between the outer cylinder 12 and the sound-generating hole 9, and the inner cylinder 11 is fixedly connected to the shell 7; a sealing plate is fixedly connected to the bottom of the outer cylinder 12, connecting pipes 15 are evenly distributed at the bottom of the outer cylinder 12, and drainage holes 16 connected with the connecting pipes 15 are provided on the periphery of the shell 7.
[0019] When the utility model is in use, sound is generated through the sound-generating structure, and the sound is emitted through the sound-generating hole 9; the sound-generating hole 9 is waterproofed by the waterproof structure to prevent water from entering the shell 7 through the sound-generating hole 9 and causing damage to the sound-generating structure, thereby improving the service life of the present application; when the waterproof structure is in use, the outer cylinder 12 cooperates with the inner cylinder 11 to make the water entering through the sound-generating hole 9 fall onto the blocking plate in the outer cylinder 12, and the water flows into the drainage hole 16 through the connecting pipe 15 and flows out through the drainage hole 16, which can effectively prevent water from entering the shell 7 and causing damage to the sound-generating structure; through the arrangement of the inner cylinder 11, it is prevented that water enters through the sound-generating hole 9 and enters the connecting hole 14, and then enters the shell 7 through the connecting hole 14, thereby improving the waterproof effect of the present application.
[0020] Furthermore, a dustproof net 10 corresponding to the sound-emitting hole 9 is fixedly connected to the shell 7, and the sound-emitting hole 9 is blocked by the dustproof net 10 to prevent dust from entering the buzzer.
[0021] Furthermore, a water baffle plate 8 corresponding to the drainage hole 16 is provided on the shell 7. The setting of the water baffle plate 8 can prevent water from entering the outer tube 12 through the connecting pipe 15; a guide plate 13 corresponding to the connecting pipe 15 is fixedly connected to the sealing plate. The setting of the guide plate 13 facilitates the water in the outer tube 12 to flow into the connecting pipe 15 and flow out through the connecting pipe 15 and the drainage hole 16.
[0022] Furthermore, the sound-generating structure includes an iron core fixed to the base plate 2, on which an electromagnetic coil 5 is sleeved; a vibration plate 6 corresponding to the electromagnetic coil 5 is provided in the shell 7, and a magnet corresponding to the vibration plate 6 is also provided on the shell 7; a PCB board is also provided on the base plate 2, and a pin 1 is connected to the PCB board; the vibration sound of the vibration plate 6 is achieved by cooperating with the PCB board, the electromagnetic coil 5, the magnet, etc.
[0023] Furthermore, a limiting column 3 is fixedly connected to the base plate 2, and a limiting hole cooperating with the limiting column 3 is provided on the shell 7; a stabilizing cylinder 4 penetrating through the shell 7 is provided on the base plate 2; by cooperating between the limiting column 3 on the base plate 2 and the limiting hole on the shell 7, and by cooperating between the stabilizing cylinder 4 on the base plate 2 and the inner wall of the shell 7, the stability of the connection between the base plate 2 and the shell 7 can be effectively improved.
[0024] The working process of the utility model is:
[0025] When the utility model is in use, the vibration plate 6 is vibrated and sounds are generated by the cooperation of the PCB board, the electromagnetic coil 5, the magnet, etc., and the sound is emitted through the sound hole 9; the water entering through the sound hole 9 flows into the guide plate 13 on the blocking plate under the action of the inner tube 11, and the water flows into the connecting pipe 15 under the action of the guide plate 13, and flows out through the connecting pipe 15 and the drainage hole 16; in addition, the water baffle 8 is set to prevent water from entering the outer tube 12 through the connecting pipe 15; the sound hole 9 is blocked by the dustproof net 10 to achieve dust prevention inside the buzzer.
Claims
1. An active integrated electromagnetic buzzer, characterized in that: The invention comprises a bottom plate (2), on which a shell (7) is provided; a sound-generating structure is provided on the bottom plate (2); a sound-generating hole (9) corresponding to the sound-generating structure is provided on the shell (7); a waterproof structure cooperating with the sound-generating hole (9) is provided inside the shell (7); the waterproof structure comprises an outer cylinder (12) fixedly connected to the shell (7); the outer cylinder (12) is arranged on the outer periphery of the sound-generating hole (9); and connecting holes (14) are uniformly distributed at one end of the outer cylinder (12) close to the sound-generating hole (9); an inner cylinder (11) corresponding to the connecting holes (14) is provided between the outer cylinder (12) and the sound-generating hole (9); and the inner cylinder (11) is fixedly connected to the shell (7); a blocking plate is fixedly connected to the bottom of the outer cylinder (12); connecting pipes (15) are uniformly distributed at the bottom of the outer cylinder (12); and drainage holes (16) connected with the connecting pipes (15) are provided on the outer periphery of the shell (7).
2. The active integrated electromagnetic buzzer according to claim 1, characterized in that: A dustproof net (10) corresponding to the sound-generating hole (9) is fixedly connected to the shell (7).
3. The active integrated electromagnetic buzzer according to claim 1, characterized in that: The housing (7) is provided with a water baffle (8) corresponding to the drainage hole (16).
4. The active integrated electromagnetic buzzer according to claim 3, characterized in that: A guide plate (13) corresponding to the connecting pipe (15) is fixedly connected to the sealing plate.
5. The active integrated electromagnetic buzzer according to claim 1, characterized in that: The sound-generating structure comprises an iron core fixedly connected to the bottom plate (2), and an electromagnetic coil (5) is sleeved on the iron core; a vibration sheet (6) corresponding to the electromagnetic coil (5) is provided in the shell (7), and a magnet corresponding to the vibration sheet (6) is also provided on the shell (7).
6. The active integrated electromagnetic buzzer according to claim 5, characterized in that: A PCB board is also provided on the bottom plate (2), and pins (1) are connected to the PCB board.
7. The active integrated electromagnetic buzzer according to claim 1, characterized in that: The bottom plate (2) is fixedly connected to a limiting column (3), and the housing (7) is provided with a limiting hole that cooperates with the limiting column (3).
8. The active integrated electromagnetic buzzer according to claim 7, characterized in that: The bottom plate (2) is provided with a stabilizing cylinder (4) which penetrates the shell (7).