CN104389769B - Curved guide groove Valveless piezoelectric pump - Google Patents
Curved guide groove Valveless piezoelectric pump Download PDFInfo
- Publication number
- CN104389769B CN104389769B CN201410535431.8A CN201410535431A CN104389769B CN 104389769 B CN104389769 B CN 104389769B CN 201410535431 A CN201410535431 A CN 201410535431A CN 104389769 B CN104389769 B CN 104389769B
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- Prior art keywords
- guide groove
- curved guide
- curve
- outside
- dou
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- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
Curved guide groove Valveless piezoelectric pump belongs to field of fluid machinery.The face of two circular piezoelectric vibrator (2) identical polars is mounted opposite on the pump housing (3), and the pump housing (3) is connected on curved guide groove (5) by the through hole (4) of side.Curved guide groove (5) is made up of rectangular section tube (7) and outside curve therein (8) and inner curve (14), and inner side and outer side is with for the position of the pump housing (3)；Qu Dou (9) outside outside curve (8) and rectangular section tube (7) composition；Qu Dou (15) inside inner curve (14) and rectangular section tube (7) composition；Outside curve (8) and inner curve (14) they are secondary parabolic. face.Inner side Qu Dou (9) is uniformly staggered in demarcation line (13) both sides of curved guide groove (5) with outside Qu Dou (15).The present invention uses curved guide groove (5) to achieve the one-way flow of fluid, can be applicable to the field such as pharmacy, medical treatment.
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, easily
Microminaturization, in health care, Aero-Space, has a wide range of applications in MEMS.
Summary of the invention
Fig. 1 is the structure chart of Valveless piezoelectric pump of the present invention.
Curved guide groove Valveless piezoelectric pump, it is characterised in that: the face of two circular piezoelectric vibrator (2) identical polars
Being mounted opposite on the pump housing (3), the cavity between two circular piezoelectric vibrators (2) is pump chamber (1), the pump housing (3)
It is connected on curved guide groove (5) by the through hole (4) of side；
Curved guide groove (5) is bent by the outside curve (8) in rectangular section tube (7) and rectangular section tube (7) and inner side
Face (14) is constituted, and so-called inner side and outer side is with for the position of the pump housing (3)；Outside curve (8)
With Qu Dou (9) outside rectangular section tube (7) composition；Song inside inner curve (14) and rectangular section tube (7) composition
Bucket (15)；Outside curve (8) and inner curve (14) are secondary parabola；Demarcation line (13) is by rectangular section tube
(7) being divided into outside and account for 2/3rds, inner side accounts for two parts of 1/3rd；Outside curve (8) extends to curved
The demarcation line (13) of guide groove (5)；Inner curve (14) also extends into demarcation line (13) place；Inner side Qu Dou (15) is with outer
Side Qu Dou (9) is uniformly staggered in demarcation line (13) both sides of curved guide groove (5)；Curved guide groove (5) has 3
Stream socket, wherein the first gateway (10) and the second gateway (11) couple with extraneous pipeline, and the 3rd goes out
Entrance (12) couples with the through hole (4) on the pump housing (3).
The operation principle of the curved guide groove Valveless piezoelectric pump that the present invention proposes is described below:
Two circular piezoelectric vibrators (2) are bonded in two of the end face of the pump housing (3) respectively with the one side that polarity is identical
On counterbore (16)；Curved guide groove (5) is arranged on the through hole (4) of the pump housing (3) side；Curved guide groove (5) is by rectangle
Outside curve (8) and inner curve (14) in variable-section tubular (7) and rectangular section tube (7) are constituted, so-called inner side
It is with for the position of the pump housing (3) with outside；Outside outside curve (8) and rectangular section tube (7) are constituted
Qu Dou (9)；Qu Dou (15) inside inner curve (14) and rectangular section tube (7) composition；Outside curve (8) and inner side
Curved surface (14) is secondary parabola；Rectangular section tube (7) is divided into outside and accounts for 2/3rds by demarcation line (13), interior
Side accounts for two parts of 1/3rd；Outside curve (8) extends to the demarcation line (13) of curved guide groove (5)；Inner side
Curved surface (14) also extends into demarcation line (13) place；Inner side Qu Dou (15) and outside Qu Dou (9) are at curved guide groove (5)
Demarcation line (13) both sides are uniformly staggered；Curved guide groove (5) has 3 stream sockets, wherein first comes in and goes out
Mouth (10) and the second gateway (11) couples, for square-section, the 3rd gateway (12) and pump with extraneous pipeline
Through hole (4) on body (3) couples, for circular cross-section.
The present invention uses curved guide groove (5) to achieve the one-way flow of fluid, simplifies the knot of conventional piezoelectric pump
Structure.The suspension in pharmacy, medical field, emulsion and the medicament containing microparticle are applied in this invention
Prepare, carry, the aspect such as injection, new technique can be formed, increase substantially production efficiency and yield rate.
Additionally, this invention also has potential use widely at other relevant fluid transmission fields.
Accompanying drawing explanation
Fig. 1 (a) curved guide groove Valveless piezoelectric pump installation diagram front view；
Fig. 1 (b) curved guide groove Valveless piezoelectric pump installation diagram top view；
Fig. 2 (a) pump housing (3) section B-B figure；
Fig. 2 (b) pump housing (3) top view；
The curved guide groove of Fig. 3 (5)；
Qu Dou (9) outside Fig. 4) schematic diagram.
Inner side Qu Dou (15) shape is similar with outside Qu Dou (9).
Detailed description of the invention
The specific embodiment of the invention such as Fig. 1-Fig. 4.Piezoelectric vibrator diameter 30mm, curved guide groove width 6mm,
High 4mm running voltage 220V, frequency 50Hz, with water as working media, flow reaches 1800mg/s.
When piezoelectric pump incoming transport power supply, when suction, two piezoelectric vibrators (2) are at one of alternating current
In half period, respectively to pump chamber (1) outer lateral bend, pump chamber (1) interior pressure declines, and fluid is from curved guide groove (5)
The first gateway (10) and the second gateway (11) flow into, and through the 3rd gateway (12), side opening (4) flows into
Pump chamber (1)；When alternating current changes direction, enters the next half period, piezoelectric pump enters the scheduling stage,
Two piezoelectric vibrator (2) lateral bends in pump chamber (1) respectively, pump chamber (1) volume declines, and pressure raises, pump chamber
(1) fluid via through holes (4) and the 3rd gateway (12) in flow into curved guide groove (5), and flow out the first gateway
(10) and the second gateway (11)；Due to outside Qu Dou (9) and the effect of inner side Qu Dou (15) in curved guide groove (5),
Fluid flows to the flow resistance in the second gateway (11) direction less than from the second gateway from the first gateway (10)
(11) flow resistance in the first gateway (10) direction is flowed to；So, by the first gateway (10) in suction
The fluid that the fluid ratio flowed into flows out the first gateway (10) in scheduling is many, in like manner, is gone out by second in suction
Entrance (11) flows into the less fluid flowing out the second gateway (11) in the fluid ratio scheduling of curved guide groove (5), therefore
Flow into from the first gateway (10) macroscopically creating fluid, the net flow flowed out from the second gateway (11).
Claims (1)
- The most curved guide groove Valveless piezoelectric pump, it is characterised in that: two circular piezoelectric vibrator (2) identical polars Face is mounted opposite on the pump housing (3), and the cavity between two circular piezoelectric vibrators (2) is pump chamber (1), the pump housing (3) It is connected on curved guide groove (5) by the through hole (4) of side；Curved guide groove (5) is bent by the outside curve (8) in rectangular section tube (7) and rectangular section tube (7) and inner side Face (14) is constituted, and so-called inner side and outer side is with for the position of the pump housing (3)；Outside curve (8) With Qu Dou (9) outside rectangular section tube (7) composition；Song inside inner curve (14) and rectangular section tube (7) composition Bucket (15)；Outside curve (8) and inner curve (14) are secondary parabola；Demarcation line (13) is by rectangular section tube (7) being divided into outside and account for 2/3rds, inner side accounts for two parts of 1/3rd；Outside curve (8) extends to curved The demarcation line (13) of guide groove (5)；Inner curve (14) also extends into demarcation line (13) place；Inner side Qu Dou (15) is with outer Side Qu Dou (9) is uniformly staggered in demarcation line (13) both sides of curved guide groove (5)；Curved guide groove (5) has 3 Stream socket, wherein the first gateway (10) and the second gateway (11) couple with extraneous pipeline, and the 3rd goes out Entrance (12) couples with the through hole (4) on the pump housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535431.8A CN104389769B (en) | 2014-10-11 | 2014-10-11 | Curved guide groove Valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535431.8A CN104389769B (en) | 2014-10-11 | 2014-10-11 | Curved guide groove Valveless piezoelectric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104389769A CN104389769A (en) | 2015-03-04 |
| CN104389769B true CN104389769B (en) | 2016-08-24 |
Family
ID=52607715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410535431.8A Expired - Fee Related CN104389769B (en) | 2014-10-11 | 2014-10-11 | Curved guide groove Valveless piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389769B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818843Y (en) * | 2005-09-28 | 2006-09-20 | 吴丽萍 | Single-vibrator and double-cavity piezo-electric pump without valve |
| CN1908433A (en) * | 2006-08-15 | 2007-02-07 | 华南农业大学 | Two-chamber valveless piezoelectric pump |
| 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 |
|---|---|---|---|---|
| US7235914B2 (en) * | 2000-10-25 | 2007-06-26 | Washington State University Research Foundation | Piezoelectric micro-transducers, methods of use and manufacturing methods for same |
| FR2934651B1 (en) * | 2008-08-01 | 2010-08-27 | Ams R & D Sas | PERFECTED ONDULATING MEMBRANE PUMP. |
-
2014
- 2014-10-11 CN CN201410535431.8A patent/CN104389769B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818843Y (en) * | 2005-09-28 | 2006-09-20 | 吴丽萍 | Single-vibrator and double-cavity piezo-electric pump without valve |
| CN1908433A (en) * | 2006-08-15 | 2007-02-07 | 华南农业大学 | Two-chamber valveless piezoelectric pump |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104389769A (en) | 2015-03-04 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 |