Small and durable flash buzzer

Abstract

The utility model belongs to the technical field of flash buzzers, and discloses a small and durable flash buzzer which comprises a shell, the shell is divided into a resonance cavity and a circuit cavity, the resonance cavity and the circuit cavity are separated by a partition plate, the partition plate is provided with a circular groove, a buzzing head is installed in the circular groove, a cover plate is installed on the edge of an opening of the circuit cavity, and the top of the buzzing head is not lower than a groove opening of the circular groove. The lower surface of the cover plate is fixedly connected with a circuit board, the surface of the circuit board is provided with a fixed capacitor, and the capacitor abuts against the buzzing head downwards. According to the utility model, the rigidity of the circuit board and the capacitor is reasonably utilized, and the capacitor is abutted against the buzzer head, so that the buzzer head is difficult to fall off from the circular groove, and the service life is longer; the circuit board can be arranged at a lower position, the overall size is effectively reduced, the device is smaller and lighter, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of flash buzzers, and in particular relates to a small and durable flash buzzer. Background Art

[0002] The flash buzzer is a buzzer device used in the vehicle turn signal circuit. It is used to control the flash and emit a warning sound to reduce hidden dangers. The flash buzzer is now widely used in land transportation vehicles such as cars, motorcycles, and electric vehicles.

[0003] The flash buzzers on the market today have structural problems. The buzzer head is simply fixed in its exclusive round groove. The buzzer head is affected by its own vibration and the vibration of the vehicle. Later, it is easy to fall off from the round groove into the circuit cavity. This will first affect the sound effect. Secondly, the circuit is easily damaged after the buzzer head falls off, affecting the service life of the buzzer. Utility Model Content

[0004] In order to overcome the above technical problems, the utility model provides a compact and durable flash buzzer with a buzzer head that is not easy to fall off.

[0005] The utility model adopts the following technical solutions:

[0006] A compact and durable flash buzzer comprises a shell, wherein the shell is divided into a resonance cavity and a circuit cavity, wherein the resonance cavity and the circuit cavity are separated by a partition, wherein the partition has a circular groove, wherein a buzzer head is installed in the circular groove, wherein a cover plate is installed at the mouth of the circuit cavity, wherein the top of the buzzer head is not lower than the notch of the circular groove, wherein the lower surface of the cover plate is fixedly connected to a circuit board, wherein the surface of the circuit board has a fixed capacitor, wherein the capacitor downwardly abuts against the buzzer head.

[0007] A pair of asymmetrical clamping grooves are provided on a group of opposite sides of the cover plate, and a corresponding clamping protrusion is provided on the inner side of the mouth edge of the shell.

[0008] The bottom end of the circuit board is lower than the notch of the circular groove, and the bottom end of the circuit board contacts the partition.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, the rigidity of the circuit board and the capacitor is reasonably utilized, so that the capacitor abuts against the buzzer head, making it difficult for the buzzer head to fall off from the circular groove, and the service life is longer;

[0011] 2. The utility model utilizes a capacitor to abut the buzzer head, so the circuit board can be arranged at a lower position, which effectively reduces the overall volume, is more compact and lightweight, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an overall schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model.

[0014] Description of reference numerals:

[0015] 1. Shell; 2. Resonance chamber; 3. Card convexity; 4. Card slot; 5. Circuit chamber; 6. Partition plate; 7. Round slot; 8. Buzzer head; 9. Circuit board; 10. Cover plate; 11. Capacitor. DETAILED DESCRIPTION

[0016] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Unless otherwise specified, the raw materials and equipment used can be purchased from the market or are commonly used in the art. The methods in the embodiments are conventional methods in the art unless otherwise specified. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0017] A compact and durable flash buzzer comprises a shell 1, wherein the shell 1 is divided into a resonance chamber 2 and a circuit chamber 5, the resonance chamber 2 and the circuit chamber 5 are separated by a partition 6, the partition 6 has a circular groove 7, a buzzer head 8 is installed in the circular groove 7, a cover plate 10 is installed at the mouth of the circuit chamber 5, the top of the buzzer head 8 is not lower than the notch of the circular groove 7, the lower surface of the cover plate 10 is fixedly connected to a circuit board 9, the surface of the circuit board 9 has a fixed capacitor 11, the capacitor 11 abuts against the buzzer head 8 downward, the bottom end of the circuit board 9 is lower than the notch of the circular groove 7, and the bottom end of the circuit board 9 contacts the partition 6; a pair of asymmetric card slots 4 are opened on a group of opposite sides of the cover plate 10, and a corresponding card protrusion 3 is provided on the inner side of the mouth of the shell 1.

[0018] A small and durable flash buzzer, when used:

[0019] The circuit board 9 is set at a low position, the device is small in size, and the working principle is the same as that of the existing flash buzzer. Relying on the support of the circuit board 9 and the capacitor 11, the buzzer head 8 in the circular groove 7 is difficult to fall off from the circular groove 7. The flash buzzer has high vibration resistance and long service life.

[0020] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the above embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compact and durable flash buzzer, comprising a housing, wherein the housing is divided into a resonance chamber and a circuit chamber, wherein the resonance chamber and the circuit chamber are separated by a partition, wherein the partition has a circular groove, wherein a buzzer head is installed in the circular groove, and a cover plate is installed at the edge of the circuit chamber, wherein: The top of the buzzer head is not lower than the notch of the circular groove, the lower surface of the cover plate is fixedly connected to the circuit board, the surface of the circuit board has a fixed capacitor, and the capacitor abuts against the buzzer head downward.

2. A compact and durable flash buzzer according to claim 1, characterized in that: A pair of asymmetrical clamping grooves are provided on a group of opposite sides of the cover plate, and a corresponding clamping protrusion is provided on the inner side of the mouth edge of the shell.

3. A compact and durable flash buzzer according to claim 1, characterized in that: The bottom end of the circuit board is lower than the notch of the circular groove, and the bottom end of the circuit board contacts the partition.

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