Electromagnetic buzzer

Abstract

The utility model relates to an electromagnetic buzzer, which comprises an upper cover, a base, an electromagnetic driving assembly and a connecting lead integrally formed in the base. One end of the connecting lead is electrically connected with the electromagnetic driving assembly, and the other end extends outwards to form a pin; according to the utility model, the pin structure design adapts to the SMT technology, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of buzzers, and specifically discloses an electromagnetic buzzer. Background Technology

[0002] An electromagnetic buzzer is an electroacoustic device that uses an electromagnetic coil to change the magnetic field of an alternating audio signal, thereby driving a metal diaphragm to produce a buzzing sound.

[0003] The common electromagnetic buzzer base has two pins connected downwards. This structural design increases the thickness of the buzzer and cannot meet the requirements of SMT process. It requires manual operation to complete the connection, resulting in high production cost and low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an electromagnetic buzzer that is adapted to SMT processes, has low production costs, and high production efficiency in order to solve the above problems.

[0005] The technical solution adopted by this utility model is as follows:

[0006] An electromagnetic buzzer includes a top cover, a base, and an electromagnetic drive assembly, and also includes a connecting lead integrally formed inside the base; one end of the connecting lead is electrically connected to the electromagnetic drive assembly, and the other end extends outward to form a pin.

[0007] Furthermore, there are at least two pins, namely a positive power supply pin and a negative power supply pin.

[0008] Furthermore, the pins are arranged in a straight line on the side of the base; the bottom surface of the pins is lower than the bottom surface of the base.

[0009] Furthermore, the pin extends outward from the side of the base and bends below the base in a C-shape.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0011] This invention utilizes connecting leads to replace the original pin structure. The connecting leads and the base are integrally injection molded, and the pins are located on the side of the base, which reduces the size of the buzzer to a certain extent. It is suitable for SMT surface mount assembly, replaces manual soldering, reduces production costs, and improves production efficiency. Attached Figure Description

[0012] Figure 1 This is a structural breakdown diagram of the present invention;

[0013] Figure 2 This is a simplified schematic diagram of the base structure described in this utility model;

[0014] Figure 3 This is a pin structure diagram of the present invention;

[0015] Figure 4 This is another pin structure diagram of this utility model. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] like Figures 1-3 As shown, an electromagnetic buzzer includes a top cover 1, a base 2, and an electromagnetic drive assembly (the electromagnetic drive assembly includes a bracket, a coil, a magnetic ring, a diaphragm, and a PCB board). It also includes a connecting lead 3, which is integrally formed inside the base 2. One end of the connecting lead 3 is electrically connected to the electromagnetic drive assembly, and the other end extends outward to form a pin 4. The pin 4 is arranged in a straight line on the side of the base 2. The bottom surface of the pin 4 is lower than the bottom surface of the base 2 to facilitate surface mounting.

[0018] There are at least two pins 4, namely the positive power supply pin and the negative power supply pin; the passive electromagnetic buzzer has two pins 4, and the active electromagnetic buzzer can be equipped with an external control pin EN, etc.

[0019] The pin 4 extends outward from the side of the base 2 and bends below the base 2, forming a C-shape, as shown below. Figure 4 As shown, this saves side space.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic buzzer, comprising a top cover, a base, and an electromagnetic drive assembly, characterized in that: It also includes a connecting lead, which is integrally formed in the base; one end of the connecting lead is electrically connected to the electromagnetic drive component, and the other end extends outward to form a pin.

2. An electromagnetic buzzer according to claim 1, characterized in that: The device has at least two pins: a positive power supply pin and a negative power supply pin.

3. An electromagnetic buzzer according to claim 1, characterized in that: The pins are arranged in a straight line on the side of the base; the bottom surface of the pins is lower than the bottom surface of the base.

4. An electromagnetic buzzer according to claim 1, characterized in that: The pins extend outward from the side of the base and bend under the base in a C-shape.

Images