阅读说明：本技术 一种高可靠性内置集成电路驱动芯片的蜂鸣器 (Buzzer with high-reliability built-in integrated circuit driving chip ) 是由 谢天雯 其他发明人请求不公开姓名 于 2020-03-16 设计创作，主要内容包括：本发明涉及一种高可靠性内置集成电路驱动芯片的蜂鸣器,包括集成电路驱动芯片、电容、单组电磁线圈、线路板、支架、磁环、振动片、正极针脚、负极针脚、壳体、密封胶,其中所述集成电路驱动芯片、电容、正极针脚、负极针脚焊接在线路板上,集成电路驱动芯片电源连接电容的一端,电容的另一端连接负极针脚,集成电路驱动芯片地线连接负极针脚,单组电磁线圈一端连接正极针脚,单组电磁线圈另一端连接集成电路驱动芯片的输出端。本产品的技术方案具有可靠性高和成本低的优点。(The invention relates to a buzzer with a high-reliability built-in integrated circuit driving chip, which comprises an integrated circuit driving chip, a capacitor, a single group of electromagnetic coils, a circuit board, a support, a magnetic ring, a vibrating reed, an anode pin, a cathode pin, a shell and sealant, wherein the integrated circuit driving chip, the capacitor, the anode pin and the cathode pin are welded on the circuit board, a power supply of the integrated circuit driving chip is connected with one end of the capacitor, the other end of the capacitor is connected with the cathode pin, a ground wire of the integrated circuit driving chip is connected with the cathode pin, one end of the single group of electromagnetic coils is connected with the anode pin, and the other end of the single group of electromagnetic. The technical scheme of the product has the advantages of high reliability and low cost.)

1. A high-reliability buzzer with a built-in integrated circuit driving chip comprises the integrated circuit driving chip, a capacitor, a single group of electromagnetic coils, a circuit board, a support, a magnetic ring, a vibrating piece, an anode pin, a cathode pin, a shell and sealant.

2. The buzzer with the built-in IC driver chip in high reliability as claimed in claim 1, wherein said IC driver chip, the capacitor, the positive pin and the negative pin are soldered on the circuit board.

3. The buzzer with the built-in integrated circuit driving chip and high reliability as claimed in claim 1, wherein the power supply of the integrated circuit driving chip is connected with one end of the capacitor, the other end of the capacitor is connected with the negative pin, the ground terminal of the integrated circuit driving chip is connected with the negative pin, one end of the single group of electromagnetic coils is connected with the positive pin, and the other end of the single group of electromagnetic coils is connected with the output end of the integrated circuit driving chip.

4. The buzzer with the built-in IC driver chip in high reliability as claimed in claim 1, wherein said IC driver chip has three pins, which are power terminal, ground terminal and output terminal, and said IC driver chip contains the oscillation circuit, the diode and the driver tube.

5. The buzzer of claim 1, wherein said ic driver chip is an ic using silicon material.

Technical Field

The invention relates to an electromagnetic buzzer, in particular to an active buzzer with a high-reliability built-in integrated circuit driving chip.

Background

Most of the existing electromagnetic buzzers still use triodes to form a double-group electromagnetic coil structure of a driving circuit, and the existing electromagnetic buzzers have the defects of high processing cost, easy short circuit and the like and low reliability due to the double-group electromagnetic coil.

Disclosure of Invention

The invention aims to solve the defects of high cost and low reliability when a double-group electromagnetic coil structure of a driving circuit is formed by using triodes.

In order to solve the problems, the invention provides a high-reliability buzzer with a built-in integrated circuit driving chip, which comprises an integrated circuit driving chip, a capacitor, a single group of electromagnetic coils, a circuit board, a support, a magnetic ring, a vibrating piece, an anode pin, a cathode pin, a shell and sealant, wherein the integrated circuit driving chip, the capacitor, the anode pin and the cathode pin are welded on the circuit board, a power supply of the integrated circuit driving chip is connected with one end of the capacitor, the other end of the capacitor is connected with the cathode pin, a ground wire end of the integrated circuit driving chip is connected with the cathode pin, one end of the single group of electromagnetic coils is connected with the anode pin, the other end of the single group of electromagnetic coils is connected with an output end of the integrated circuit driving chip, the integrated circuit driving chip is provided with three pins which are respectively a, Diode, drive tube.

In order to save cost, the integrated circuit driving chip is an integrated circuit using silicon materials.

When the positive pin of the buzzer is connected with a direct current power supply, and the negative pin of the buzzer is connected with a direct current ground wire, the direct current power supply passes through the electromagnetic coil, the output end supplies power to the integrated circuit driving chip through the diode, the internal oscillation circuit works and outputs a certain frequency signal to drive the single group of electromagnetic coils through the output end, so that the buzzer makes a sound, and the frequency of the sound is determined by the frequency of the internal oscillator of the integrated circuit driving chip.

According to the invention, because the power supply of the integrated circuit driving chip is connected with the capacitor, the integrated circuit driving chip is not easy to be damaged, and larger impact on a system can not be caused.

In conclusion, the invention has the following beneficial effects: a buzzer with a high-reliability built-in integrated circuit driving chip has the advantages of high reliability and low cost.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a circuit schematic of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the invention provides a high-reliability buzzer with a built-in integrated circuit driving chip, which comprises an integrated circuit driving chip 10, a capacitor 11, a single group of electromagnetic coils 5, a circuit board 6, a bracket 3, a magnetic ring 4, a vibrating reed 2, an anode pin 8, a cathode pin 9, a shell 1 and a sealant 7.

In actual installation, as shown in fig. 1, the integrated circuit driving chip 10, the capacitor 11, the positive pin 8 and the negative pin 9 are soldered on the circuit board 6.

Referring to fig. 2 and fig. 1, the line connection relationship is: the power supply of the integrated circuit driving chip 10 is connected with one end of the capacitor 11, the other end of the capacitor 11 is connected with the negative pin 9, the ground wire end of the integrated circuit driving chip 10 is connected with the negative pin 9, one end of the single group of electromagnetic coils 5 is connected with the positive pin 8, and the other end of the single group of electromagnetic coils 5 is connected with the output end of the integrated circuit driving chip 10. The integrated circuit driving chip 10 has three pins, which are a power supply terminal VDD, a ground terminal GND, and an output terminal OUT.

As shown in fig. 1, the ic driver chip 10 includes an oscillating circuit, a diode, and a driving tube.

In conclusion, the invention has the following beneficial effects: a buzzer with a high-reliability built-in integrated circuit driving chip has the advantages of high reliability and low cost.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.