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Electronic horn using piezoelectric ceramic buzzer as diaphragm and sounding method thereof

A technology of piezoelectric ceramics and electronic horns, which is applied in the direction of sound-generating devices and instruments, can solve the problems of low sound-generating efficiency and high energy consumption, and achieve the effects of reduced power, light material, and low power consumption

Inactive Publication Date: 2019-01-18
HARBIN GOODTIME ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High energy consumption and low sound efficiency

Method used

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  • Electronic horn using piezoelectric ceramic buzzer as diaphragm and sounding method thereof
  • Electronic horn using piezoelectric ceramic buzzer as diaphragm and sounding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An electronic horn using a piezoelectric ceramic buzzer as a diaphragm, which consists of: a housing 1, a piezoelectric ceramic diaphragm 15 is installed between the housing and a gland 2, the housing, The glands are respectively connected to the loudspeaker housing 3, and a PCB circuit board 4 is installed in the housing, and the PCB circuit board and the piezoelectric ceramic diaphragm are connected by wires, and the PCB circuit board It has a connection terminal 5, and the housing is connected with a knurled connection device 6, and the knurled connection device is connected with a fixed frame, and the fixed frame is fixed on the locomotive.

Embodiment 2

[0017] According to the electronic horn using the piezoelectric ceramic buzzer as the diaphragm described in Embodiment 1, the acoustic channel 7 is provided in the sound amplifying shell.

Embodiment 3

[0019] According to the electronic horn using the piezoelectric ceramic buzzer as the diaphragm described in Embodiment 1, the PCB circuit board includes a power circuit 8, and the power circuit is connected to the base frequency circuit 9, the control circuit 10, and the power module respectively. 11, the drive module 12 is installed between the control circuit and the power module, the base frequency circuit is connected to the closed-loop feedback circuit 13, and the closed-loop feedback circuit is connected to the speaker 14.

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PUM

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Abstract

Provided are an electronic horn using a piezoelectric ceramic buzzer as a diaphragm and a sounding method thereof. At present, that horn used for automobile whistle are all made of ferrous metal diaphragm as the sounding diaphragm, and the vibration frequency is 300Hz-600 Hz. As that metal diaphragm is to be vibrated, the driving power is required to be large enough, the energy consumption is high, and the sound production efficiency is low. A method and apparatus for manufacture that present invention comprises the follow steps of: Case (1), a piezoelectric ceramic diaphragm (15) is arrangedbetween the housing and the pressure cap (2), the housing, the pressure gland is respectively connected with a loudspeaker housing (3), The PCB circuit board is connected with the piezoelectric ceramic membrane through a conductor. The PCB circuit board has a connection terminal (5). The shell is connected with a knurling connection device (6). The knurling connection device is connected with a fixing bracket, and the fixing bracket is fixed on a locomotive. The invention is used for an electronic horn.

Description

Technical field: [0001] The invention relates to an electronic horn using a piezoelectric ceramic buzzer as a diaphragm and a sounding method. Background technique: [0002] At present, the whistle horns for motor vehicles all adopt iron metal diaphragms as sounding vibrating pieces, which are amplified through the sound channel to sound, and the vibration frequency is between 300Hz--600Hz. Because the metal diaphragm needs to be vibrated, the driving power is required to be large enough. Generally, the electric power of the whistle horn is about 50W, or even greater. High energy consumption and low sound efficiency. Invention content: [0003] The object of the present invention is to provide an electronic horn and sounding method using piezoelectric ceramic buzzer as diaphragm. [0004] Above-mentioned purpose realizes by following technical scheme: [0005] An electronic horn using a piezoelectric ceramic buzzer as a diaphragm, which consists of: a housing, a piezoel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K9/122
CPCG10K9/122
Inventor 赵宏伟
Owner HARBIN GOODTIME ELECTRONICS
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