Waterproof structure for electric horn
By designing a waterproof structure for electric speakers including shell, diaphragm, ring groove, rubber ring and iron core, the problem of water inlet of electric speakers is solved, and higher waterproof performance and service life are achieved.
Patent Information
- Application Number
- CN202420993783.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-09
AI Technical Summary
Existing electric speakers are prone to water in rainy and snowy weather or during car washing, resulting in reduced performance or damage. The existing waterproof structures are difficult to meet the waterproof performance requirements in harsh environments such as high temperature, high humidity, and vibration.
A waterproof structure for electric speakers is designed, including a shell, a diaphragm, annular groove, a first rubber ring, an iron core, a second rubber ring and a third rubber ring. The diaphragm is closely attached to the rear side wall of the housing through the cooperation of the ring groove and the first rubber ring. The second rubber ring presses the diaphragm against the iron core, and the third rubber ring further enhances the sealing property.
It effectively prevents the entry of moisture and dust, improves the waterproof and dustproof performance of the electric speaker, enhances service life and reliability, reduces maintenance costs, and improves the driving safety and comfort of the car.
Smart Images
Figure CN222621164U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electrical components, in particular to a waterproof structure for an electric horn. Background Art
[0002] With the continuous advancement of automobile technology and consumers' increasing attention to automobile comfort and safety, the stability and reliability of the performance of electric horns, as an important part of automobiles, have attracted more and more attention. During the driving process of the car, the electric horn is not only used to send out necessary sound signals to warn pedestrians and attract the attention of other vehicles, but also used to urge the car to move and transmit signals, which plays an indispensable role in ensuring traffic safety.
[0003] However, in actual applications, electric horns often suffer from performance degradation or damage due to water ingress or humid environments. Especially in rainy and snowy weather or when washing a car, water can easily enter the electric horn through the gaps in the horn, causing damage to the circuits and components of the horn, thereby affecting its normal operation. The existing waterproof structure of electric horns mainly relies on the design of sealing materials and sealing structures. However, due to the working characteristics of electric horns and the requirements of the use environment, simple sealing materials and structures are often difficult to meet the requirements of waterproof performance. Especially in harsh environments such as high temperature, high humidity, and vibration, sealing materials and structures are prone to aging, deformation, or loosening, resulting in a decrease in waterproof performance. Utility Model Content
[0004] The purpose of the utility model is to provide a waterproof structure for an electric horn which has good waterproof effect and can prolong the service life of the electric horn in view of the above problems.
[0005] To achieve the above-mentioned purpose, the utility model discloses a waterproof structure for an electric horn, including a shell, and its structural features are: the shell is open forward, a diaphragm is installed on the front side of the shell to close the front opening of the shell, an annular groove is provided at the front of the shell, the outer edge of the diaphragm extends into the annular groove, a first rubber ring is installed in the annular groove, the rear part of the first rubber ring is pressed against the front side wall of the annular groove, and the first rubber ring squeezes the diaphragm against the rear side wall of the annular groove, an iron core is installed in the shell, and a second rubber ring is installed on the shell to press the diaphragm against the front side of the iron core.
[0006] The shell is open forward, so that the electric horn can maintain the sound transmission effect while the front opening of the shell is closed by the diaphragm, effectively preventing the entry of moisture and dust, and improving the waterproof and dustproof performance of the electric horn. The annular groove is provided so that the diaphragm can be firmly installed on the shell. The presence of the first rubber ring enhances the sealing between the diaphragm and the shell, further improving the waterproof performance. Through the extrusion of the first rubber ring, the close fit between the diaphragm and the rear side wall of the annular groove is ensured, and moisture is prevented from penetrating from the gap between the diaphragm and the annular groove, thereby enhancing the reliability of the waterproof structure. The second rubber ring presses the diaphragm against the iron core, which not only ensures the stable vibration of the diaphragm, but also enhances the sealing between the diaphragm and the iron core, further improving the waterproof performance.
[0007] The first rubber ring and the second rubber ring are elastic silicone rings. The silicone rings have good elasticity and weather resistance, can adapt to working environments under different temperature and humidity conditions, and ensure the durability and stability of the waterproof structure.
[0008] The third rubber ring is installed on the front side of the iron core, and the rear of the diaphragm is pressed against the front side of the third rubber ring. The design of the third rubber ring further enhances the sealing between the diaphragm and the iron core, prevents moisture from penetrating from the rear of the diaphragm, and improves the reliability of the waterproof structure.
[0009] The third rubber ring is a silicone ring with elastic expansion and contraction. Like the first and second rubber rings, the third rubber ring is also made of silicone material, which ensures its good elasticity and weather resistance, and further enhances the durability and stability of the waterproof structure.
[0010] The third rubber ring and the second rubber ring have the same shape and size. The third rubber ring and the second rubber ring are consistent in function and structure, which is convenient for production and installation, improves production efficiency and product quality, and facilitates close cooperation between the two.
[0011] A sound board is provided on the front side of the housing to press the diaphragm against the iron core, and the sound board presses against the front side of the second rubber ring. The sound board not only enhances the acoustic effect of the electric horn, but also further ensures the close fit between the diaphragm and the iron core through its pressure, thereby enhancing the reliability of the waterproof structure.
[0012] The soundboard is equipped with positioning pins, which pass through the third rubber ring, the soundboard, the second rubber ring and the diaphragm, and the ends of the positioning pins are fixed on the iron core. The positioning pins ensure the stable position relationship between the soundboard, the third rubber ring, the second rubber ring and the diaphragm, prevent loosening or dislocation caused by vibration or external force, and improve the stability and reliability of the waterproof structure.
[0013] The soundboard is in the shape of a circular basin, and a through hole is provided on the soundboard for the positioning pin to pass through, and the aperture size of the through hole is smaller than the inner diameter size of the second rubber ring. The circular basin-shaped soundboard is conducive to the diffusion and enhancement of sound, and the aperture design of the through hole ensures that the positioning pin can pass through stably without affecting the sealing performance of the second rubber ring.
[0014] In summary, the beneficial effects of the utility model are as follows: the annular groove is provided so that the diaphragm can be stably mounted on the housing, and the presence of the first rubber ring enhances the sealing between the diaphragm and the housing, further improving the waterproof performance. Through the extrusion of the first rubber ring, the tight fit between the diaphragm and the rear side wall of the annular groove is ensured, moisture is prevented from penetrating from the gap between the diaphragm and the annular groove, and the reliability of the waterproof structure is enhanced. Moreover, the utility model has a simple structure, is easy to install, and is low in cost. It is suitable for electric horns of various types and specifications, and can effectively improve the service life and reliability of electric horns, reduce maintenance costs, and improve the driving safety and comfort of automobiles. 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 schematic diagram of the matching structure of the diaphragm and the third rubber ring;
[0017] Figure 3 It is a schematic diagram of the matching structure of the soundboard and the second rubber ring;
[0018] Figure 4 It is a schematic diagram of the shell structure.
[0019] In the figure: diaphragm 1, shell 2, resonance board 3, iron core 4, first rubber ring 5, second rubber ring 6, third rubber ring 7, positioning pin 8. DETAILED DESCRIPTION
[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0021] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0024] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.
[0025] A waterproof structure for an electric horn includes a shell 2, the shell 2 is open to the front, a diaphragm 1 is installed on the front side of the shell 2 to close the front opening of the shell 2, a ring groove is provided at the front of the shell 2, the outer edge of the diaphragm 1 extends into the ring groove, a first rubber ring 5 is installed in the ring groove, the rear of the first rubber ring 5 is pressed against the front side wall of the ring groove, and the first rubber ring 5 squeezes the diaphragm 1 against the rear side wall of the ring groove, an iron core 4 is installed in the shell 2, and a second rubber ring 6 is installed on the shell 2 to press the diaphragm 1 against the front side of the iron core 4. Refer to the attached Figure 1 The shell 2 is open forward, so that the electric horn can maintain the sound transmission effect while the front opening of the shell 2 is closed by the diaphragm 1, effectively preventing the entry of moisture and dust, and improving the waterproof and dustproof performance of the electric horn. The annular groove is provided so that the diaphragm 1 can be firmly installed on the shell 2. The presence of the first rubber ring 5 enhances the sealing between the diaphragm 1 and the shell 2, further improving the waterproof performance. Through the extrusion of the first rubber ring 5, the tight fit between the diaphragm 1 and the rear side wall of the annular groove is ensured, and moisture is prevented from penetrating from the gap between the diaphragm 1 and the annular groove, thereby enhancing the reliability of the waterproof structure. The second rubber ring 6 presses the diaphragm 1 against the iron core 4, which not only ensures the stable vibration of the diaphragm 1, but also enhances the sealing between the diaphragm 1 and the iron core 4, further improving the waterproof performance.
[0026] See attached Figure 2 , Attachment Figure 3, the first rubber ring 5 and the second rubber ring 6 are silicone rings with elastic expansion and contraction. The silicone ring has good elasticity and weather resistance, can adapt to the working environment under different temperature and humidity conditions, and ensures the durability and stability of the waterproof structure. The third rubber ring 7 is installed on the front side of the iron core 4, and the rear part of the diaphragm 1 is pressed against the front side of the third rubber ring 7. The design of the third rubber ring 7 further enhances the sealing between the diaphragm 1 and the iron core 4, prevents moisture from penetrating from the rear part of the diaphragm 1, and improves the reliability of the waterproof structure. The third rubber ring 7 is a silicone ring with elastic expansion and contraction. Like the first and second rubber rings, the third rubber ring 7 is also made of silicone material, which ensures its good elasticity and weather resistance, and further enhances the durability and stability of the waterproof structure. The third rubber ring 7 and the second rubber ring 6 have the same shape and size. The third rubber ring 7 and the second rubber ring 6 are consistent in function and structure, which is convenient for production and installation, improves production efficiency and product quality, and facilitates close cooperation between the two.
[0027] See attached Figure 3 , a sound board 3 is provided on the front side of the housing 2 to press the diaphragm 1 against the iron core 4, and the sound board 3 is pressed against the front side of the second rubber ring 6. The sound board 3 not only enhances the acoustic effect of the electric horn, but also further ensures the close fit between the diaphragm 1 and the iron core 4 through its pressure, thereby enhancing the reliability of the waterproof structure. A positioning pin 8 is installed on the sound board 3, and the positioning pin 8 passes through the third rubber ring 7, the sound board 3, the second rubber ring 6 and the diaphragm 1, and the end of the positioning pin 8 is fixed on the iron core 4. The positioning pin 8 ensures the stable position relationship between the sound board 3, the third rubber ring 7, the second rubber ring 6 and the diaphragm 1, prevents loosening or dislocation caused by vibration or external force, and improves the stability and reliability of the waterproof structure. The sound board 3 is in the shape of a round basin, and a through hole is provided on the sound board 3 for the positioning pin 8 to pass through, and the aperture size of the through hole is smaller than the inner diameter size of the second rubber ring 6. The round basin-shaped soundboard 3 is conducive to the diffusion and enhancement of sound, and the aperture design of the hole ensures that the positioning nail 8 can pass through stably without affecting the sealing performance of the second rubber ring 6.
[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A waterproof structure for an electric horn, comprising a housing (2), characterized in that: The shell (2) is open forward, and a diaphragm (1) is installed on the front side of the shell (2) to seal the front opening of the shell (2). The front part of the shell (2) is provided with an annular groove, and the outer edge of the diaphragm (1) extends into the annular groove. A first rubber ring (5) is installed in the annular groove, and the rear part of the first rubber ring (5) is pressed against the front side wall of the annular groove, and the first rubber ring (5) squeezes the diaphragm (1) against the rear side wall of the annular groove. An iron core (4) is installed in the shell (2), and a second rubber ring (6) is installed on the shell (2) to press the diaphragm (1) against the front side of the iron core (4).
2. The waterproof structure for an electric horn according to claim 1, characterized in that: The first rubber ring (5) and the second rubber ring (6) are silicone rings with elastic expansion and contraction.
3. The waterproof structure for an electric horn according to claim 1, characterized in that: A third rubber ring (7) is installed on the front side of the iron core (4), and the rear part of the diaphragm (1) is pressed against the front side of the third rubber ring (7).
4. The waterproof structure for an electric horn according to claim 3, characterized in that: The third rubber ring (7) is a silicone ring with elastic expansion.
5. The waterproof structure for an electric horn according to claim 4, characterized in that: The third rubber ring (7) and the second rubber ring (6) have the same shape and size.
6. The waterproof structure for an electric horn according to claim 4, characterized in that: A resonance board (3) is provided on the front side of the housing (2) for pressing the diaphragm (1) against the iron core (4), and the resonance board (3) is pressed against the front side of the second rubber ring (6).
7. The waterproof structure for an electric horn according to claim 6, characterized in that: A positioning pin (8) is installed on the sound board (3), the positioning pin (8) passes through the third rubber ring (7), the sound board (3), the second rubber ring (6) and the diaphragm (1), and the end of the positioning pin (8) is fixed on the iron core (4).
8. The waterproof structure for an electric horn according to claim 7, characterized in that: The sound board (3) is in the shape of a round basin. A through hole is provided on the sound board (3) for the positioning pin (8) to pass through. The diameter of the through hole is smaller than the inner diameter of the second rubber ring (6).