Piezoelectric horn for electric two-wheeled vehicle

Abstract

The utility model discloses a piezoelectric horn for an electric two-wheeled vehicle, which relates to the field of piezoelectric horns of electric two-wheeled vehicles and comprises a stop block, a front cover, a piezoelectric ceramic buzzing sheet and a rear cover. The stop block, the front cover and the rear cover are matched to form the complete appearance of the buzzer, the piezoelectric ceramic buzzing piece and the front cover are matched to form a first working cavity, and the front cover and the stop block are matched to form a second working cavity. The sound production performance is excellent, the adaptive drive can be accessed to realize abundant sound effects, the power consumption is small, the production is convenient, and the applicability is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric two -wheeled vehicle piezoelectric horn field, specifically discloses a piezoelectric horn for electric two -wheeled vehicle. BACKGROUND

[0002] The brands and types of electric two -wheeled vehicles on the market are numerous, but the used horn is mainly a contact type metal electric horn, which controls the on-off of the current in the coil by using the closing and opening of the contact, so that the iron core is adsorbed and released by the coil due to the magnetic field, and the contact is also cyclically on-off with the movement of the iron core, and the diaphragm vibrates and sounds with the movement of the iron core in the cycle. This contact type electric horn has simple structure, loud sound and easy repair, but has large working current, high power consumption, damaged contact and fixed sound effect. SUMMARY

[0003] The application aims to provide a piezoelectric horn with superior sound performance, which can be connected to an adaptive drive to realize rich sound effect, has small power consumption, is convenient to produce and has wide applicability.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A piezoelectric horn for electric two -wheeled vehicle, comprising a stop block, a front cover, a piezoelectric ceramic buzzer and a rear cover connected.

[0006] The piezoelectric ceramic buzzer and the front cover cooperate to form a first working cavity, and the front cover and the stop block cooperate to form a second working cavity.

[0007] Further, the bottom of the stop block is provided with a limiting column, and the top of the front cover is provided with a limiting hole matched with the limiting column at the bottom of the stop block, so that the stop block and the front cover are fixed in horizontal position.

[0008] Further, a height limiting structure is arranged between the stop block and the front cover, the height limiting structure comprises a height limiting seat arranged at the top of the front cover and a limiting block arranged at the bottom of the stop block, and the shape of the limiting block is matched with the shape of the notch at the top of the height limiting seat, so that the stop block and the front cover are fixed in vertical position.

[0009] Further, a step is arranged in the inner cavity of the front cover close to the rear cover, for bearing the piezoelectric ceramic buzzer.

[0010] Further, the front cover and the rear cover are connected through the buckle structure, so that the front cover and the rear cover are clamped.

[0011] Further, a positioning column is arranged at the bottom of the front cover, and a positioning groove matched with the positioning column is arranged at the top of the rear cover, and the positioning column and the positioning groove cooperate to prevent wrong assembly.

[0012] Further, the rear cover is provided with a glue groove for sealing the front cover and the rear cover by glue.

[0013] To sum up, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0014] The utility model discloses a piezoelectric horn for electric two-wheeled vehicle, assembles simply, and it is convenient for batch production, can be connected according to the demand adaptation drive and realizes rich sound effect, reduces the sound device required for prompt tone, satisfies the development demand of electric two-wheeled vehicle intelligent, and the top stopper plays the role of protection and also plays the role of adjusting the resonant frequency point of working cavity, so that the sound effect of the utility model is best. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure exploded view of the utility model;

[0016] Figure 2 It is the structure plan view of the utility model;

[0017] Figure 3 It is the sectional view of the utility model;

[0018] Figure 4 It is the structure plan view of the rear cover of the utility model;

[0019] Figure 5 It is the structure plan view of the front cover of the utility model;

[0020] Figure 6 It is the structure bottom view of the front cover of the utility model;

[0021] Figure 7 It is the structure bottom view of the stopper of the utility model;

[0022] Figure 8 It is the structure exploded top view of the stopper and the front cover of the utility model;

[0023] Figure 9 It is the structure exploded bottom view of the stopper and the front cover of the utility model.

[0024] In the above-mentioned drawing, 1 is the stopper, 2 is the front cover, 3 is the piezoelectric ceramic buzzer sheet, 4 is the rear cover, 11 is the limiting column, 21 is the limiting hole, 22 is the step, 23 is the buckle structure of the front cover, 24 is the positioning column, 25 is the front cover lead half hole, 26 is the height limiting structure, 41 is the glue groove, 42 is the buckle structure of the rear cover, 43 is the rear cover lead half hole, and 44 is the positioning groove. DETAILED DESCRIPTION

[0025] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0026] A piezoelectric horn for electric two-wheeled vehicle, as shown in the figure, comprising a stopper 1, a front cover 2, a piezoelectric ceramic buzzer 3 and a rear cover 4. Figures 1-7 The stopper 1, the front cover 2 and the rear cover 3 cooperate to form the complete shape of the utility model, the piezoelectric ceramic buzzer 3 cooperates with the front cover 2 to form a first working cavity, and the front cover 2 cooperates with the stopper 1 to form a second working cavity.

[0027] The stopper 1 plays a protective role and also plays a role in adjusting the resonance frequency point of the second working cavity by adjusting the height of the limiting column 11.

[0028] The stopper 1 plays a protective role and also plays a role in adjusting the resonance frequency point of the second working cavity by adjusting the height of the limiting column 11.

[0029] The front cover 2 has a step 22 formed inside for bearing the piezoelectric ceramic buzzer 3.

[0030] The stopper 1 has a limiting column 11 at the bottom, and the front cover 2 has a corresponding limiting hole 21 at the top, and the two cooperate to fix the horizontal position of the stopper 1 and the front cover 2 relative to each other.

[0031] The front cover 2 and the rear cover 4 have a matching buckle structure, the buckle structure 23 of the front cover and the buckle structure 42 of the rear cover cooperate with each other to tightly clamp the front cover 2 and the rear cover 4, and the buckle structure of the utility model appears in pairs as male and female buckles, which can be adjusted on the structure.

[0032] The front cover 2 has a positioning column 24, and the rear cover 4 has a corresponding positioning groove 44, and the positioning column 24 and the positioning groove 44 cooperate to play a foolproof assembly role, which is convenient for production.

[0033] The rear cover 4 has a glue groove 41, and the utility model uses glue to seal the front cover 2 and the rear cover 4 in addition to the buckle structure tightly clamping the front cover 2 and the rear cover 4.

[0034] The stopper and the front cover have a height limiting structure, so that the vertical position of the stopper and the front cover is relatively fixed; the height limiting structure can be a height limiting seat on the front cover, which abuts against the height limiting block on the bottom of the stopper 1;

[0035] In another embodiment, i.e. embodiment 2, the height limiting structure can also be a height limiting step on the height limiting column 11 of the stopper, so that the height limiting column 11 limits not only the relative horizontal position of the stopper 1 and the front cover 2, but also the relative vertical position of the stopper 1 and the front cover 2 (as shown in Figure 8 、 Figure 9 ).

[0036] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A piezoelectric horn for an electric two-wheeled vehicle, characterized by: The stopper, the front cover, the piezoelectric ceramic buzzer and the back cover are connected; The piezoelectric ceramic buzzer and the front cover form a first working cavity, and the front cover and the stopper form a second working cavity.

2. A piezoelectric horn for an electric two-wheeled vehicle according to claim 1, characterized in that: The bottom of the stopper is provided with a limiting column, and the top of the front cover is provided with a limiting hole matched with the limiting column, so that the horizontal position of the stopper and the front cover is fixed.

3. A piezoelectric horn for an electric two-wheeled vehicle according to claim 2, characterized in that: A height limiting structure is arranged between the stopper and the front cover, so that the vertical position of the stopper and the front cover is fixed.

4. A piezoelectric horn for an electric two-wheeled vehicle according to claim 3, characterized in that: The height limiting structure comprises a height limiting seat arranged on the top of the front cover and a limiting block arranged on the bottom of the stopper, and the shape of the limiting block is matched with the shape of the notch on the top of the height limiting seat, so that the vertical position of the stopper and the front cover is fixed.

5. A piezoelectric horn for an electric two-wheeled vehicle according to claim 1, characterized in that: The inner cavity of the front cover near the back cover is provided with a step for bearing the piezoelectric ceramic buzzer.

6. A piezoelectric horn for an electric two-wheeled vehicle according to claim 1, characterized in that: The front cover and the back cover are connected through the buckle structure, so that the front cover and the back cover are clamped.

7. A piezoelectric horn for an electric two-wheeled vehicle according to claim 5, characterized in that: The bottom of the front cover is provided with a positioning column, and the top of the back cover is provided with a positioning groove matched with the positioning column, so that the positioning column and the positioning groove can play the role of assembly mistake prevention.

8. A piezoelectric horn for an electric two-wheeled vehicle according to claim 1, characterized in that: The back cover is provided with a glue groove for sealing the front cover and the back cover through glue.

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