CN104373324A - Valveless piezoelectric pump with side parabola conical flow pipe - Google Patents
Valveless piezoelectric pump with side parabola conical flow pipe Download PDFInfo
- Publication number
- CN104373324A CN104373324A CN201410534693.2A CN201410534693A CN104373324A CN 104373324 A CN104373324 A CN 104373324A CN 201410534693 A CN201410534693 A CN 201410534693A CN 104373324 A CN104373324 A CN 104373324A
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- parabola
- pipe
- tower tray
- pump
- tray pipe
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- 239000012530 fluid Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 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
The invention belongs to the field of fluid machines, and relates to a valveless piezoelectric pump with a side parabola conical flow pipe. The valveless piezoelectric pump is characterized in that the faces, with the same polarity, of two round piezoelectric vibrators (2) are oppositely arranged on a pump body (3), a pump cavity (1) is formed between the two round piezoelectric vibrators (2), and the pump body (3) is connected to the parabola conical flow pipe (5) through a through hole (4) in the side face. The parabola conical flow pipe (5) is a conical pipe formed by rotating a semi-parabola around an axis (12) as a generatrix. The semi-parabola is half of a parabola sectioned with a symmetry axis (14) as a boundary. A cylindrical pipe (8) connected in the middle of the parabola conical flow pipe (5) is further included. A large end opening (7) and a small end opening (10) of the parabola conical flow pipe (5) are connected with an outside pipe, and the cylindrical pipe (8) is connected with the through hole (4) in the side face of the pump body (3) through an inlet and outlet (6). The parabola conical flow pipe (5) is used, one-way flow of fluid can be achieved with only one flow guide pipe, and the valveless piezoelectric pump is widely used in a micro electro-mechanical system.
Description
Technical field
The present invention relates to a kind of Valveless piezoelectric pump, belong to field of fluid machinery.
Background technique
Valveless piezoelectric pump structure is simple, and mechanical Transmitted chains, reliability is high, and electromechanical conversion efficiency is high, easy microminaturization, and in health care, Aero-Space, have a wide range of applications in MEMS.
Summary of the invention
Fig. 1 is the structural drawing of Valveless piezoelectric pump of the present invention.
Side parabola coning tower tray pipe Valveless piezoelectric pump, 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 parabola coning tower tray pipe (5) by the through hole (4) of side.
Parabola coning tower tray pipe (5) be one with half side parabola for bus, around axis (12) rotate formed conical pipe; This half side parabola is with the parabola half of symmetry axis (14) boundary subdivision; Also comprise the cylindrical tube (8) being connected in parabola coning tower tray pipe (5) middle part; Large port (7) and the portlet (10) of parabola coning tower tray pipe (5) connect with extraneous pipeline respectively, and cylindrical tube (8) is connected by gateway (6) side through hole (4) with the pump housing (3).
The working principle of this is described below:
Two circular piezoelectric vibrators (2) are bonded on two counterbores (9) of the end face of the pump housing (3) respectively with the one side that polarity is identical; Parabola coning tower tray pipe (5) is arranged on the through hole (4) of the pump housing (3) side; Parabola coning tower tray pipe (5) be one with parabola coning tower tray pipe (5) be one with half side parabola for bus, around axis (12) rotate formed conical pipe; This half side parabola is with the parabolical half of symmetry axis (14) boundary subdivision; Also comprise the cylindrical tube (8) being connected in parabola coning tower tray pipe (5) middle part; Large port (7) and the portlet (10) of parabola coning tower tray pipe (5) connect with extraneous pipeline respectively, and cylindrical tube (8) is connected by gateway (6) side through hole (4) with the pump housing (3).
Further, guide plate (13) is arranged in parabola coning tower tray pipe (5), is positioned at plane by axis (12) and perpendicular with the axis (11) of cylindrical tube (8); One end and the axis (11) of guide plate (13) coincide, and the other end extends to 1/8-1/6 of parabola coning tower tray pipe (5) length to port (10) direction.
The present invention uses parabola coning tower tray pipe (5) to achieve only just can make fluid generation one-way flow with a honeycomb duct, simplify the structure that traditional Valveless piezoelectric pump must install two honeycomb ducts, make Valveless piezoelectric pump can microminaturization more, there is potential use widely in MEMS.
Accompanying drawing explanation
Fig. 1 (a) parabola coning tower tray pipe Valveless piezoelectric pump erection drawing plan view;
Fig. 1 (b) parabola coning tower tray pipe Valveless piezoelectric pump erection drawing plan view;
Fig. 2 (a) pump housing (3) parts drawing B-B sectional view;
Fig. 2 (b) pump housing (3) parts drawing plan view;
Fig. 3 parabola coning tower tray pipe (5) parts drawing.
Embodiment
The specific embodiment of the invention is as Fig. 1-Fig. 3.Piezoelectric vibrator diameter 30mm, parabola coning tower tray pipe portlet (10) diameter is 5mm, and the diameter of large port (7) is 8mm, the diameter of cylindrical tube is 4mm, operating voltage 220V, frequency 50Hz, be working medium with water, flow reaches 1900mg/s.
When piezoelectric pump incoming transport power supply, when inhaling journey, two piezoelectric vibrators (2) are in a halftime of Ac, respectively to pump chamber (1) outer lateral bend, pump chamber (1) internal pressure declines, fluid is from the large port (7) of parabola coning tower tray pipe (5) and portlet (10), and through gateway (6), through hole (4) flows into pump chamber (1); When Ac changes pressure direction, when entering the next halftime, piezoelectric pump enters the scheduling stage, two piezoelectric vibrators (2) are respectively to pump chamber (1) interior lateral bend, pump chamber (1) volume declines, pressure raises, and the fluid via through holes (4) in pump chamber (1) and gateway (6) flow into parabola coning tower tray pipe (5), and flow out large port (7) and portlet (10); Due to the conical pipe effect in parabola coning tower tray pipe (5), between gateway (6) to large port (7) pipeline, fluid is greater than the flow resistance from gateway (6) to large port (7) direction from the flow resistance that large port (7) flows to gateway (6) direction, so the Fluid Volume flowing to large port (7) within a suction journey cycle from gateway (6) is more than the flow flowing to gateway (6) from large port (7); In like manner, between entrance (6) and portlet (3) go out, in the suction journey cycle, be less than from gateway (6) to the flow of portlet (3) flow flowing to gateway (6) from portlet (3); Therefore macroscopically creating fluid from portlet (3) inflow, from the net flow that large port (7) flows out.
Claims (2)
1. side parabola coning tower tray pipe Valveless piezoelectric pump, 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 parabola coning tower tray pipe (5) by the through hole (4) of side; Parabola coning tower tray pipe (5) be one with half side parabola for bus, around axis (12) rotate formed conical pipe; This half side parabola is with the parabola half of symmetry axis (14) boundary subdivision; Also comprise the cylindrical tube (8) being connected in parabola coning tower tray pipe (5) middle part; Large port (7) and the portlet (10) of parabola coning tower tray pipe (5) connect with extraneous pipeline respectively, and cylindrical tube (8) is connected by gateway (6) side through hole (4) with the pump housing (3).
2. side parabola coning tower tray pipe Valveless piezoelectric pump according to claim 1, it is characterized in that: guide plate (13) is arranged in parabola coning tower tray pipe (5), and be arranged in plane by axis (12) and perpendicular with the axis (11) of cylindrical tube (8); One end and the axis (11) of guide plate (13) coincide, and the other end extends to 1/8-1/6 of parabola coning tower tray pipe (5) length to portlet (10) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534693.2A CN104373324B (en) | 2014-10-11 | Side parabola coning tower tray pipe Valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534693.2A CN104373324B (en) | 2014-10-11 | Side parabola coning tower tray pipe Valveless piezoelectric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373324A true CN104373324A (en) | 2015-02-25 |
| CN104373324B CN104373324B (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604920A (en) * | 2016-01-12 | 2016-05-25 | 北京联合大学 | Side suction pipe valveless piezoelectric pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583541A (en) * | 2004-05-27 | 2005-02-23 | 哈尔滨工程大学 | Microdriver with multilayer drivnig membrane structure and manufacturing method thereof |
| US20080070088A1 (en) * | 2006-09-14 | 2008-03-20 | Casio Computer Co., Ltd. | Support structure of electroosmotic member, electroosmosis pump, electric power generation apparatus and electronic equipment |
| CN103573592A (en) * | 2013-10-08 | 2014-02-12 | 新疆大学 | Conical electroactive-polymer-driven single-chamber micro-pump |
| CN203856693U (en) * | 2014-06-12 | 2014-10-01 | 北方工具设备（宁波）有限公司 | Variable diaphragm pump |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583541A (en) * | 2004-05-27 | 2005-02-23 | 哈尔滨工程大学 | Microdriver with multilayer drivnig membrane structure and manufacturing method thereof |
| US20080070088A1 (en) * | 2006-09-14 | 2008-03-20 | Casio Computer Co., Ltd. | Support structure of electroosmotic member, electroosmosis pump, electric power generation apparatus and electronic equipment |
| CN103573592A (en) * | 2013-10-08 | 2014-02-12 | 新疆大学 | Conical electroactive-polymer-driven single-chamber micro-pump |
| CN203856693U (en) * | 2014-06-12 | 2014-10-01 | 北方工具设备（宁波）有限公司 | Variable diaphragm pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604920A (en) * | 2016-01-12 | 2016-05-25 | 北京联合大学 | Side suction pipe valveless piezoelectric pump |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |