Piezoelectric air pump

An electric pump and piezoelectric technology, applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve problems affecting user experience and achieve the effect of improving heat dissipation efficiency and speeding up heat dissipation

Pending Publication Date: 2017-12-22
SHENZHEN HEYI PRECISION PUMP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Piezoelectric pump is a new type of pump. The piezoelectric vibrator inside it will vibrate back and forth after being supplied with alternating current. The piezoelectric pump uses the reciprocating vibration of the piezoelectric vibrator to drive the gas to flow forward. However, piezoelectric The vibrator will continuously emit noise during the vibration

Method used

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Examples

Experimental program
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Embodiment 1

[0024] Such as figure 1 and 2 As shown, a piezoelectric pump includes a casing and a piezoelectric assembly arranged in the casing. The casing is formed by ultrasonic welding of the upper casing 1 and the lower casing 9 to form a closed cavity, and the lower casing 9 has an air inlet Channel 6, the upper shell 1 has an air outlet channel 7; a sound-absorbing chamber B is formed between the piezoelectric assembly and the housing, and at least one sound-absorbing plate 8 is arranged in the sound-absorbing chamber B, such as image 3 As shown, at least one through hole 81 penetrating through the sound-absorbing plate 8 is provided on the sound-absorbing plate.

[0025] The essence of sound is vibration, so it needs to rely on the medium as the transmission medium, and the transmission of sound is essentially the transmission of vibration in the medium. When encountering obstacles, the vibration of the sound will be reflected and attenuated at the same time. This is the technical...

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Abstract

The invention relates to a piezoelectric air pump which comprises an outer shell and a piezoelectric assembly arranged in the outer shell. An air inlet channel and an air outlet channel are formed in the outer shell, and a noise reduction cavity is formed between the piezoelectric assembly and the outer shell; and at least one noise reduction plate is arranged in the noise reduction cavity, and each noise reduction plate is provided with at least one through hole penetrating through the noise reduction plate. The piezoelectric air pump is small in internal noise and high in heat dissipation efficiency.

Description

technical field [0001] The invention relates to the field of pumps, in particular to a piezoelectric electric pump. Background technique [0002] Piezoelectric pump is a new type of pump. The piezoelectric vibrator inside it will vibrate back and forth after being supplied with alternating current. The piezoelectric pump uses the reciprocating vibration of the piezoelectric vibrator to drive the gas to flow forward. However, piezoelectric The vibrator will continuously emit noise during the vibration and power-on process, which will affect the user experience of the product. Especially in some fields, such as the medical field, electronic product field, aquarium and other fields, the noise of the piezoelectric pump is required to be as small as possible, even To achieve the mute effect, it is necessary to improve the mute effect of the piezoelectric pump. Contents of the invention [0003] In order to solve the above-mentioned shortcomings of the prior art, the present in...

Claims

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Application Information

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IPC IPC(8): F04B45/047F04B39/00F04B39/16
CPCF04B39/0083F04B39/16F04B45/047
Inventor 胡军
Owner SHENZHEN HEYI PRECISION PUMP TECH CO LTD
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