CN104481851B - Paraxonic tandem Valveless piezoelectric pump - Google Patents
Paraxonic tandem Valveless piezoelectric pump Download PDFInfo
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- CN104481851B CN104481851B CN201410533051.0A CN201410533051A CN104481851B CN 104481851 B CN104481851 B CN 104481851B CN 201410533051 A CN201410533051 A CN 201410533051A CN 104481851 B CN104481851 B CN 104481851B
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- paraxonic
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- 239000012530 fluid Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Paraxonic tandem Valveless piezoelectric pump belongs to field of fluid machinery.It is characterized in that: the face of two circular piezoelectric vibrator (2) identical polars is mounted opposite on the pump housing (3), cavity between two circular piezoelectric vibrators (2) is pump chamber (1), and the pump housing (3) is connected on paraxonic tandem flow tube (5) by the through hole (4) of side；The cylindrical tube that paraxonic tandem flow tube (5) is not waited by several sections of diameters is in series according to diameter order, with axis co-planar, and the mode that bus overlaps couples, it is perpendicular to axis at paraxonic tandem flow tube (5) middle part and cylindrical connecting tube (8) is installed；Cylindrical connecting tube (8) is connected with the side through hole (4) of the pump housing (3)；Large port (7) and the portlet (18) of paraxonic tandem flow tube (5) couple with extraneous pipeline.The present invention uses paraxonic tandem flow tube (5) to achieve and only fluid just can be made to produce one-way flow with a mozzle, have and have been widely used in MEMS.
Description
Technical field
The present invention relates to a kind of Valveless piezoelectric pump, belong to field of fluid machinery.
Background technology
Valveless piezoelectric pump simple in construction, mechanical driving-chain, reliability is high, and electromechanical conversion efficiency is high, easy microminaturization,
Health care, Aero-Space, MEMS has a wide range of applications.
Summary of the invention
Fig. 1 is the structure chart of Valveless piezoelectric pump of the present invention.
Paraxonic tandem Valveless piezoelectric pump, it is characterised in that: the face of two circular piezoelectric vibrator (2) identical polars is pacified relatively
Being contained on the pump housing (3), the cavity between two circular piezoelectric vibrators (2) is pump chamber (1), and the pump housing (3) is joined by the through hole (4) of side
Receive on paraxonic tandem flow tube (5)；The cylindrical tube that paraxonic tandem flow tube (5) is not waited by several sections of diameters is according to diameter
Order is in series, and with axis co-planar, and the mode that bus overlaps couples, and is perpendicular to axle at paraxonic tandem flow tube (5) middle part
Cylindrical connecting tube (8) installed by line；Cylindrical connecting tube (8) is connected with the side through hole (4) of the pump housing (3)；Paraxonic tandem
The large port (7) of flow tube (5) and portlet (18) couple with extraneous pipeline respectively.The paraxonic tandem valveless pressure that the present invention proposes
The operation principle of electric pump is described below:
Two circular piezoelectric vibrators (2) are bonded in two counterbores of the end face of the pump housing (3) respectively with the one side that polarity is identical
(12) on；Paraxonic tandem flow tube (5) is arranged on the through hole (4) of the pump housing (3) side；Paraxonic tandem flow tube (5) is by several sections
The cylindrical tube that diameter does not waits is in series according to diameter order, and with axis co-planar, and the mode that bus overlaps couples,
Paraxonic tandem flow tube (5) middle part is perpendicular to axis and installs cylindrical connecting tube (8).The large port of paraxonic tandem flow tube (5)
(7) couple with extraneous pipeline respectively with portlet (18).
Further, the cylindrical tube that paraxonic tandem flow tube (5) is not waited by three sections of diameters is connected according to diameter order
Form, respectively large-diameter pipe (11), central diameter pipe (10) and small diameter tube (9)；The axis (16) of cylindrical connecting tube (8) is positioned at path
The axis (13) of pipe (9), in the plane that the axis (17) of central diameter pipe (10) and the axis (14) of large-diameter pipe (11) are constituted, and together
Bus (15) is vertical；Cylindrical connecting tube (8) is connected by the side through hole (4) of gateway (6) with the pump housing (3).
Further, deflector (19) is a flat board, and the axis (17) being arranged on central diameter pipe (10) above and is arranged on and cylinder
In the plane that shape connecting tube (8) is vertical；The dead in line of one end of deflector (19) and cylindrical connecting tube (8), the other end to
Small diameter tube (9) one side extend at 1/4th of central diameter pipe (10) length to 1/3rd.
The present invention uses paraxonic tandem flow tube (5) to achieve only just can make fluid generation way flow with a mozzle
Dynamic, simplify tradition Valveless piezoelectric pump and the structure of two mozzles must be installed, make Valveless piezoelectric pump can more microminaturization,
There is in MEMS widely potential use.
Accompanying drawing explanation
Fig. 1 (a) paraxonic tandem flow tube Valveless piezoelectric pump front view；
Fig. 1 (b) paraxonic tandem flow tube Valveless piezoelectric pump top view
Fig. 2 (a) pump housing (3) section B-B figure；
Fig. 2 (b) pump housing (3) top view；
Fig. 3 (a) paraxonic tandem flow tube (5) front view；
Fig. 3 (b) paraxonic tandem flow tube (5) top view.
Detailed description of the invention
The embodiment of the present invention employs three sections of different cylindrical tube of diameter, respectively small diameter tube (9), central diameter pipe (10) and
Large-diameter pipe (11)；The axis (13) of small diameter tube (9), the axis (17) of central diameter pipe (10) and the axis (14) of large-diameter pipe (11) are positioned at
In same plane；In this plane, small diameter tube (9), it is one that the bus of central diameter pipe (10) and large-diameter pipe (11) inwall homonymy overlaps
Common bus (15)；The specific embodiment of the invention such as Fig. 1-Fig. 3.Piezoelectric vibrator diameter 30mm, paraxonic tandem flow tube portlet
(18) a diameter of 4mm, central diameter bore 8mm, a diameter of 8mm of large port (7), a diameter of 4mm of cylindrical tube (8), work
Voltage 220V, frequency 50Hz, with water as working media, flow reaches 2150mg/s.
When piezoelectric pump incoming transport power supply, when suction, two piezoelectric vibrators (2) are in a half period of alternating current
In, respectively to pump chamber (1) outer lateral bend, pump chamber (1) interior pressure declines, and fluid is from the large port (7) of paraxonic tandem flow tube (5)
With portlet (18), through gateway (6), side opening (4) flows into pump chamber (1)；When alternating current changes direction, enter the next half period
Time, piezoelectric pump enters scheduling stage, two piezoelectric vibrator (2) lateral bends in pump chamber (1) respectively, and pump chamber (1) volume declines, pressure
Power raises, and fluid via through holes (4) and gateway (6) in pump chamber (1) flow into paraxonic tandem flow tube (5), and flow out large port
And portlet (18) (7)；Due to the reduced pipe effect in paraxonic tandem flow tube (5), manage in gateway (6) to large port (7)
Between road, fluid flows to the flow resistance in gateway (6) direction more than from gateway (6) to large port (7) side from large port (7)
To flow resistance, so flowing to the Fluid Volume of large port (7) more than from big end from gateway (6) within a suction journey cycle
Mouth (7) flows to the flow of gateway (6)；In like manner, between gateway (6) and portlet (18) go out, in the suction journey cycle
From gateway (6) to the flow of portlet (18) less than the flow flowing to gateway (6) from portlet (18)；Therefore macroscopically
Create fluid to flow into from portlet (18), the net flow flowed out from large port (7).
Claims (3)
1. paraxonic tandem Valveless piezoelectric pump, it is characterised in that: the face of two circular piezoelectric vibrator (2) identical polars is mounted opposite
On the pump housing (3), the cavity between two circular piezoelectric vibrators (2) is pump chamber (1), and the pump housing (3) is coupled by the through hole (4) of side
On paraxonic tandem flow tube (5)；The cylindrical tube that paraxonic tandem flow tube (5) is not waited by several sections of diameters is according to diameter time
Sequence is in series, and with axis co-planar, and the mode that bus overlaps couples, and is perpendicular to axis at paraxonic tandem flow tube (5) middle part
Cylindrical connecting tube (8) is installed；Cylindrical connecting tube (8) is connected with the side through hole (4) of the pump housing (3)；Paraxonic tandem pipe flow
The large port (7) of pipe (5) and portlet (18) couple with extraneous pipeline respectively.
Paraxonic tandem Valveless piezoelectric pump the most according to claim 1, it is characterised in that: paraxonic tandem flow tube (5) by
The cylindrical tube that three sections of diameters do not wait is in series according to diameter order, respectively large-diameter pipe (11), central diameter pipe (10) and
Small diameter tube (9)；The axis (16) of cylindrical connecting tube (8) is positioned at the axis (13) of small diameter tube (9), the axis of central diameter pipe (10)
(17) and in the plane that constitutes of the axis (14) of large-diameter pipe (11) and vertical with common bus (15), common bus (15) is small diameter tube
(9) bus that, the bus of central diameter pipe (10) and large-diameter pipe (11) inwall homonymy overlaps.
Paraxonic tandem Valveless piezoelectric pump the most according to claim 2, it is characterised in that: deflector (19) is a flat board,
The axis (17) being arranged on central diameter pipe (10) above and is arranged in the plane vertical with cylindrical connecting tube (8)；Deflector (19)
The dead in line of one end and cylindrical connecting tube (8), the other end extends into central diameter pipe (10) length to small diameter tube (9) side
At 1/1st to three/4th.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533051.0A CN104481851B (en) | 2014-10-11 | 2014-10-11 | Paraxonic tandem Valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533051.0A CN104481851B (en) | 2014-10-11 | 2014-10-11 | Paraxonic tandem Valveless piezoelectric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104481851A CN104481851A (en) | 2015-04-01 |
| CN104481851B true CN104481851B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410533051.0A Expired - Fee Related CN104481851B (en) | 2014-10-11 | 2014-10-11 | Paraxonic tandem Valveless piezoelectric pump |
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| Country | Link |
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| CN (1) | CN104481851B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202100427U (en) * | 2011-05-30 | 2012-01-04 | 浙江师范大学 | Asymmetric flow channel non-valve piezoelectric pump |
| CN202707435U (en) * | 2012-05-02 | 2013-01-30 | 江苏大学 | Valveless piezoelectric pump with axially symmetric elliptic tubes |
| CN102913422A (en) * | 2012-10-18 | 2013-02-06 | 南京航空航天大学 | Drag-reducing valveless piezoelectric pump with drag-reducing fluids |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5476514B2 (en) * | 2005-10-27 | 2014-04-23 | コニカミノルタ株式会社 | Method for uniformly mixing a plurality of fluids in a mixing channel |
| FR2934651B1 (en) * | 2008-08-01 | 2010-08-27 | Ams R & D Sas | PERFECTED ONDULATING MEMBRANE PUMP. |
-
2014
- 2014-10-11 CN CN201410533051.0A patent/CN104481851B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202100427U (en) * | 2011-05-30 | 2012-01-04 | 浙江师范大学 | Asymmetric flow channel non-valve piezoelectric pump |
| CN202707435U (en) * | 2012-05-02 | 2013-01-30 | 江苏大学 | Valveless piezoelectric pump with axially symmetric elliptic tubes |
| CN102913422A (en) * | 2012-10-18 | 2013-02-06 | 南京航空航天大学 | Drag-reducing valveless piezoelectric pump with drag-reducing fluids |
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|---|---|
| CN104481851A (en) | 2015-04-01 |
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Granted publication date: 20160824 |
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