Buzzer with function of resisting ultrasonic impact
By insulating ultrasonic waves with lead plates and butyl rubber inside the buzzer housing, and using strong rubber bands and buffer springs to form double buffer protection, the problem of ordinary buzzers being easily damaged in ultrasonic environments is solved, achieving stable operation and extended lifespan.
Patent Information
- Application Number
- CN202422869152.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In high-intensity, multi-frequency ultrasonic environments, the piezoelectric ceramic sheet of a regular buzzer is easily damaged, leading to sound distortion, structural damage, and a shortened service life.
Lead plates and butyl rubber are installed inside the buzzer housing to isolate ultrasonic waves. The housing is also protected by a double buffer system consisting of strong rubber bands and buffer springs to reduce vibration.
It effectively reduces the impact of ultrasonic waves on internal components, extends service life, and ensures stable operation.
Smart Images
Figure CN223501548U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of buzzer technology, and in particular to a buzzer with anti-ultrasonic impact function. Background Technology
[0002] In today's era of rapid technological advancement, various electronic devices are widely used in numerous fields. Buzzers, as a common sound-generating device, play a crucial role in industrial automation, security alarms, and smart home systems. However, with the increasingly complex operating environments of electronic devices, ultrasonic interference has become a problem that cannot be ignored.
[0003] In industrial production settings, such as around ultrasonic welding and cleaning equipment, and in areas where ultrasonic waves are used for non-destructive testing or ranging, high-intensity, multi-frequency ultrasonic signals exist. In such environments, the delicate components inside ordinary buzzers, especially the piezoelectric ceramic discs, are highly susceptible to ultrasonic impact. Because of the piezoelectric effect, the piezoelectric ceramic discs generate abnormal electrical signal changes when subjected to ultrasonic vibrations. This not only interferes with the buzzer's normal sound production function, causing distortion, pitch shifting, or even complete silence, but also damages the physical structure of the components due to excessive vibration, such as causing cracks and wear, significantly shortening the buzzer's lifespan. Utility Model Content
[0004] The purpose of this invention is to provide a buzzer with anti-ultrasonic shock function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution, which includes a shell, a sound hole at the top of the shell, a base plate at the bottom of the shell, a pair of pins at the bottom of the base plate, a fixing plate inside the shell, several strong rubber bands around the outer ring of the fixing plate, the strong rubber bands being disposed on the inner wall of the shell, a pair of through holes on the fixing plate, a piezoelectric ceramic sheet on the fixing plate, a pair of connecting wires at the bottom of the piezoelectric ceramic sheet, and the two connecting wires passing through the two through holes and connecting to the pins respectively.
[0006] As a preferred embodiment, each of the perforations has a fixed edge at its bottom, and a buffer spring is disposed downward inside the fixed edge. The other end of the buffer spring is disposed on the base plate, and the buffer spring sleeve is disposed on the outside of the connecting line.
[0007] As a preferred embodiment, a lead plate is disposed within the wall of the outer casing.
[0008] As a preferred embodiment, the inner wall of the outer casing is provided with butyl rubber.
[0009] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0010] 1. This utility model incorporates a lead plate within the outer casing wall. The lead plate effectively reflects and isolates some ultrasonic waves, forming the first line of defense. The butyl rubber on the inner wall of the outer casing further absorbs and isolates residual ultrasonic waves. These two protective structures work together to greatly reduce the impact of external ultrasonic waves on the internal components of the buzzer, enabling it to operate stably in an ultrasonic environment.
[0011] 2. When some of the ultrasonic energy is still transmitted to the internal components and causes vibration, the strong rubber band on the outer ring of the fixing plate can first reduce the vibration force on the piezoelectric ceramic sheet. At the same time, the buffer spring inside the bottom fixing edge of the perforation, with the cooperation of the two buffer springs, further reduces the vibration intensity, forming a double buffer protection for the internal components, which greatly enhances the overall structure's ability to resist ultrasonic impact.
[0012] 3. This utility model effectively reduces the mechanical damage that key components such as piezoelectric ceramic sheets may suffer due to vibration in an ultrasonic environment by using the buffering effect of strong rubber bands and buffer springs. The impact force on the components is greatly reduced, thereby reducing the risk of component fatigue, wear or even damage caused by excessive vibration and significantly extending the service life of the components. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a side sectional view of the present invention.
[0015] Figure 3 This is a schematic diagram of the connection structure between the piezoelectric ceramic sheet and the base plate of this utility model;
[0016] Figure 4 This is a schematic diagram of the top structure of the fixing plate of this utility model;
[0017] Figure 5 This is a schematic diagram of the bottom structure of the fixing plate of this utility model.
[0018] Reference numerals: 1. Outer shell, 100. Sound hole, 2. Strong rubber band, 3. Fixing plate, 300. Perforation, 301. Fixing edge, 4. Base plate, 5. Pin, 6. Piezoelectric ceramic sheet, 7. Connecting wire, 8. Buffer spring, 9. Lead plate, 10. Butyl rubber. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0020] like Figures 1-5 As shown, the present invention proposes a buzzer with anti-ultrasonic shock function, which mainly includes a shell 1. The top of the shell 1 is provided with a sound hole 100, and the bottom is fixed with a base plate 4. A pair of pins 5 are provided below the base plate 4. A fixing plate 3 is placed horizontally inside the shell 1. Several strong rubber bands 2 are fixed to the outer ring of the fixing plate 3. After being stretched, the other end is fixed to the inner wall of the shell 1. A pair of through holes 300 are made on the fixing plate 3. A piezoelectric ceramic sheet 6 is set on the fixing plate 3. After a pair of connecting wires 7 are firmly connected to the bottom electrode of the piezoelectric ceramic sheet 6, they pass through the through holes 300 respectively.
[0021] A buffer spring 8 is installed inside the bottom fixed edge 301 of the perforation 300. One end is tightly connected to the fixed edge 301, and the other end is placed at the corresponding position of the base plate 4. Ensure that the spring is sleeved outside the connecting line 7 and does not interfere with each other. The spring needs to have appropriate elasticity and strength to effectively buffer vibration.
[0022] A lead plate 9 is tightly embedded in the wall of the outer shell 1 and formed into one piece with the outer shell 1 using a suitable process. Ten layers of butyl rubber are evenly laid on the inner wall of the outer shell 1. The thickness is moderate and the surface is flat. There is no adhesion or interference with the inner wall and internal components, thereby enhancing the protection against ultrasonic waves and ensuring the stable operation of the buzzer.
[0023] When subjected to ultrasonic waves, the lead plate 9 and butyl rubber 10 take the lead in blocking some of the ultrasonic waves through rebound and isolation effects. Inside the buzzer, several strong rubber bands 2 are closely connected to the piezoelectric ceramic sheet 6. During the vibration of the component, the strong rubber bands 2 can effectively absorb and weaken the vibration force on the piezoelectric ceramic sheet 6. At the same time, the fixing plate 3, under the synergistic effect of the two buffer springs 8, further reduces the vibration intensity, forming a double buffer protection mechanism, which greatly enhances the service life and stability of the component and ensures the reliable operation of the internal components of the buzzer in an ultrasonic environment.
[0024] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A buzzer with ultrasonic shock resistance, comprising a housing (1), wherein a sound hole (100) is provided at the top of the housing (1), and a base plate (4) is provided at the bottom of the housing (1), wherein a pair of pins (5) are provided at the bottom of the base plate (4), characterized in that: The outer shell (1) is provided with a fixing plate (3), and the outer ring of the fixing plate (3) is provided with several strong rubber bands (2). The strong rubber bands (2) are provided on the inner wall of the outer shell (1). The fixing plate (3) is provided with a pair of through holes (300). The fixing plate (3) is provided with a piezoelectric ceramic sheet (6). The bottom of the piezoelectric ceramic sheet (6) is provided with a pair of connecting wires (7). The two connecting wires (7) pass through the two through holes (300) respectively and are connected to the pins (5).
2. A buzzer with anti-ultrasonic shock function according to claim 1, characterized in that: Each of the perforations (300) has a fixed edge (301) at its bottom, and a buffer spring (8) is provided downward inside the fixed edge (301). The other end of the buffer spring (8) is provided on the base plate (4), and the buffer spring (8) is sleeved on the outside of the connecting line (7).
3. A buzzer with anti-ultrasonic shock function according to claim 1, characterized in that: A lead plate (9) is provided inside the wall of the outer shell (1).
4. A buzzer with anti-ultrasonic shock function according to claim 1, characterized in that: Butyl rubber (10) is provided on the inner wall of the outer shell (1).