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Low-power-consumption piezoelectric security and protection alertor

An alarm, low energy consumption technology, applied in the field of alarm

Inactive Publication Date: 2013-05-22
CHANGZHOU BESTAR INTELLIGENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For existing piezoelectric security alarms, if the sound pressure of the alarm is increased, the energy consumption of the alarm will be further increased, which is inconsistent with the national plan for energy conservation and emission reduction

Method used

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  • Low-power-consumption piezoelectric security and protection alertor
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  • Low-power-consumption piezoelectric security and protection alertor

Examples

Experimental program
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Embodiment Construction

[0017] like figure 1 As shown, the low energy consumption piezoelectric security alarm of the present invention includes a buzzer housing 1, a buzzer cover 3 and a piezoelectric sheet 2, the piezoelectric sheet 2 is fixed in the buzzer housing 1, and the buzzer The buzzer cover 3 is mounted on the outside of the piezoelectric sheet 2 . The buzzer cover plate 3 is provided with a through hole through which the electrode terminal of the piezoelectric sheet can be accommodated, and the piezoelectric sheet 2 is energized through the electrode terminal, so that the piezoelectric sheet vibrates to generate sound.

[0018] The buzzer shell is provided with a sounding hole 4 that protrudes outward, and the sounding hole communicates with the piezoelectric sheet, so that the sound emitted by the piezoelectric sheet is emitted from the sounding hole 4 . The low-energy-consumption piezoelectric security alarm device of the present invention also includes a loudspeaker cavity 5, such as ...

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PUM

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Abstract

The invention relates to an alertor, in particular to a low-power-consumption security and protection alertor. The low-power-consumption security and protection alertor comprises a buzzer shell, a buzzer cover plate and a piezoelectric sheet, wherein the piezoelectric sheet is fixed in the buzzer shell, the buzzer cover plate is installed at the outer side of the piezoelectric sheet in a covering mode, a pronunciation hole which protrudes outward is formed in the buzzer shell, and the pronunciation hole is communicated with the piezoelectric sheet. The low-power-consumption piezoelectric security and protection alertor further comprises a sound-amplifying chamber. A horn-shaped connecting port which is matched with the pronunciation hole is formed in the sound-amplifying chamber, a reflex sound-amplifying channel is connected with a flaring end of the horn-shaped connecting port, and the other end of the horn-shaped connecting port is connected with the pronunciation hole. By means of the low-power-consumption piezoelectric security and protection alertor and the reflex of the sound-amplifying chamber, a function of sound amplification is achieved. Meanwhile, frequency is reduced through a sound guiding column, and boost is further improved by combination of the sound-amplifying chamber and the sound guiding column. Considering a gap can exist when the horn-shaped connecting port is connected with the pronunciation hole, thus a gasket is adopted to seal the gap, and low sound pressure caused by air leakage is avoided.

Description

technical field [0001] The invention relates to an alarm, in particular to a piezoelectric alarm. Background technique [0002] In the existing piezoelectric security alarm, if the sound pressure of the alarm is increased, the energy consumption of the alarm will be further increased, which is inconsistent with the national plan for energy conservation and emission reduction. How to provide the sound pressure of the alarm and improve the performance of the alarm while preventing the increase of the energy consumption of the alarm is the main problem of the production of the alarm at this stage. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a piezoelectric alarm with low energy consumption. [0004] In order to solve the above technical problems, the low energy consumption piezoelectric security alarm of the present invention includes a buzzer housing, a buzzer cover plate and a piezoelectric sheet, the piezoele...

Claims

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Application Information

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IPC IPC(8): G08B3/10G10K9/122
Inventor 赵峥郭敏吴逸飞
Owner CHANGZHOU BESTAR INTELLIGENT TECH
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