Double cavity type piezoelectric micropump

A micro-pump, cavity-type technology, applied in the direction of variable-capacity pump components, pumps, pump components, etc., can solve the problem of low flow rate of piezoelectric pumps, and achieve the effect of good sound insulation

Active Publication Date: 2015-05-20
SHENZHEN HEYI PRECISION PUMP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low flow rate of existing piezoelectric pumps, the present invention provides a double-cavity piezoelectric

Method used

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  • Double cavity type piezoelectric micropump
  • Double cavity type piezoelectric micropump
  • Double cavity type piezoelectric micropump

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] Such as Figure 1 to Figure 8 shown, where figure 2 The live cable 19 is not shown in the exploded view, Figure 8 The cable 6, the female terminal 7, the circuit board 8, the energized cable 19, the first piezoelectric vibrator 10a and the second piezoelectric vibrator 10b are not sectioned. A dual-cavity piezoelectric micropump in this embodiment, Including the cover 1, the housing 2 fixedly fitted with the cover 1 and forming the pump chamber 16, and the pump core assembly located in the pump chamber 16, the cover 1 and the housing 2 can be fixedly connected...

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Abstract

A double cavity type piezoelectric micropump comprises a cover body, a shell and a pump core component, wherein the shell is fixedly matched with the cover body, pump cavities are defined by the cover body and the shell, and the pump core component is located in the pump cavity. The cover body is provided with a first locating protrusion and a first pre-pressing portion, and the shell is provided with a second locating protrusion and a second pre-pressing portion; the pump core component comprises a primary support together clamped by the first locating protrusion and the second locating protrusion, a secondary support fixedly matched with the primary support, a first elastic seal ring arranged on the primary support, a second elastic seal ring arranged on the secondary support, a first piezoelectric vibrator the periphery of which is pre-pressed on the first elastic seal ring and abuts against the first pre-pressing portion, a second piezoelectric vibrator the periphery of which is pre-pressed on the second elastic seal ring and abuts against the second pre-pressing portion, a first inlet valve and a first outlet valve arranged on the primary support, and a second inlet valve and a second outlet valve arranged on the secondary support. The double cavity type piezoelectric micropump has the advantages of being large in flow, compact and small in structure, low in noise and extremely high in practical value.

Description

technical field [0001] The invention relates to the field of pumps, in particular to a piezoelectric pump. Background technique [0002] In some fields, such as electronic products, aquarium and other fields, whether it is a water pump or an air pump, it is generally required that its volume should be as small as possible, the noise generated should be as low as possible, the flow rate should be as high as possible, and the pressure should be within certain requirements. In terms of value, the existing traditional pumps, such as motor pumps, are generally difficult to meet the requirements of small volume and low noise; now, piezoelectric pumps appearing on the market have solved the problem of large volume and high noise. For example, see the piezoelectric pump disclosed in Chinese patent CN200580039113.1, and its embodiment 1 discloses a piezoelectric pump with a monolithic single cavity (one piezoelectric vibrator corresponds to a variable cavity). The working method is ...

Claims

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Application Information

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IPC IPC(8): F04B43/04F04B53/00
Inventor 胡军
Owner SHENZHEN HEYI PRECISION PUMP TECH CO LTD
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