CN1948754A - Built in rotable multiblock valve less piezoelectric pump - Google Patents
Built in rotable multiblock valve less piezoelectric pump Download PDFInfo
- Publication number
- CN1948754A CN1948754A CN 200610114526 CN200610114526A CN1948754A CN 1948754 A CN1948754 A CN 1948754A CN 200610114526 CN200610114526 CN 200610114526 CN 200610114526 A CN200610114526 A CN 200610114526A CN 1948754 A CN1948754 A CN 1948754A
- Authority
- CN
- China
- Prior art keywords
- pump
- piezoelectric
- tetrahedron
- piezoelectric pump
- abaculus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005086 pumping Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 16
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 10
- 208000028659 discharge Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
In the invention, by setting a tetrahedral inserted block in the pump chamber, the fluid flowing in or out from the inlets and outlets of two pumps suffers different resistances, so as to form pressure difference to achieve the goal of the one-way flow. The invention mainly includes a piezoelectric pump top cap, a piezoelectric pump bottom cap, a piezoelectric vibrator disposed on the piezoelectric pump top cap, inlets and outlets of two pumps, a tetrahedral inserted block and a direct-flow pipe disposed on the piezoelectric pump bottom cap. The pump inlets and outlets are in communication with the pump chamber through the direct-flow pipe. The tetrahedral block is used for regulating the flow of pumps.
Description
Technical field
The present invention relates to a kind of built in rotable multiblock valve less piezoelectric pump, belong to field of fluid machinery.
Background technique
Piezoelectric pump belongs to positive displacement pump mostly, and piezoelectric pump can be divided into according to having or not of pump valve has valve piezoelectric pump and Valveless piezoelectric pump, and Fig. 1 is for there being valve piezoelectric pump.Valveless piezoelectric pump makes that because of having saved complicated action valve body the piezoelectric pump structure is simpler, and processing and fabricating is easy, and is easy to the miniaturization development to piezoelectric pump; Valveless piezoelectric pump self does not have chemistry and electromagnetic pollution again, so have broad application prospects in fields such as medical treatment, health, health cares.At present Valveless piezoelectric pump is to utilize inverted each other conical flow pipe and make conical flow pipe Valveless piezoelectric pump mostly, and Fig. 2 is a conical flow pipe Valveless piezoelectric pump.But two conical pipes that this pump exposes have increased the overall dimensions of pump, are unfavorable for the further microminiaturization of pump and integrated; Simultaneously, processing difficulties, the installing and locating of two conical flow pipes are bad, and in addition, the flow of conical flow pipe Valveless piezoelectric pump is also less, and these defectives have all had a strong impact on the application in practical field of piezoelectric pump.
Summary of the invention
The objective of the invention is to overcome the described defective of above-mentioned Valveless piezoelectric pump, a kind of flow that can further reduce volume and physical dimension, increase pump is provided, and the built in rotable multiblock valve less piezoelectric pump with better flow characteristic.
To achieve these goals, the present invention has adopted following technological scheme.This device mainly includes piezoelectric pump loam cake 8, piezoelectric pump lower cover 6 and is arranged on piezoelectric vibrator 2 on the piezoelectric pump loam cake 8, two and pumps inlet 14, rotatable tetrahedron abaculus 7 and be arranged on DC tube 10 on the piezoelectric pump lower cover 6, wherein, the rectangle tube seat of DC tube 10 for discharging from piezoelectric pump lower cover 6 pumps inlet 14 and is communicated with pump chamber by DC tube 10.A plurality of tetrahedron abaculus are staggered in pump chamber and can rotate in pump chamber along the vertical line perpendicular to the pump chamber bottom surface, are used to adjust the angle of tetrahedron abaculus 7 with respect to the gateway, both sides 14 of pump, thereby adjust flow.
Be fixed with outstanding cannon plug on the bottom surface of described tetrahedron abaculus 7, have the cylinder shape groove 15 that matches with this cannon plug on the pump chamber bottom surface, tetrahedron abaculus 7 can rotate in this groove 15 by cannon plug.
Described tetrahedron abaculus 7 is a positive tetrahedron.
The working principle of the built in rotable multiblock valve less piezoelectric pump that the present invention proposes can be stated as: as shown in figure 14, when piezoelectric ceramic 12 and tinsel 13 as the two poles of the earth, when piezoelectric vibrator 2 leads to an Ac, piezoelectric ceramic 12 can produce dilatation radially, because piezoelectric ceramic 12 and tinsel 13 cling and are integral, and piezoelectric ceramic 12 is different with the radial-telescopic of tinsel 13, so when piezoelectric ceramic 12 produces radially dilatation, tinsel 13 also can produce dilatation, and flexible direction is opposite with piezoelectric ceramic 12, then piezoelectric vibrator 2 will inevitably produce vertically the reciprocal deformation vibration of (normal orientation of piezoelectric ceramic 12), the power source of piezoelectric vibrator 2 as piezoelectric pump.As shown in Figure 4,, thereby cause the volume cyclically-varying of piezoelectric pump pump chamber, caused fluid flowing in pump chamber along with the axially back and forth deformation vibration of piezoelectric vibrator 2.Again as shown in Figure 3, concerning each tetrahedron abaculus abaculus, flow resistance when fluid flows into the tetrahedron corner angle that form from other two sides from tetrahedral side direction flows out is that the direction that is different from the tetrahedron corner angle that form from two sides flows into the flow resistance when flowing out from tetrahedron another one side, be inversely proportional to because flow through the big or small size of the volume of fluid again with flow resistance, so when the pump chamber volume increases, fluid flows to pump chamber by two DC tube 10 of both sides and a series of staggered tetrahedron abaculus that is built in the pump chamber, this moment, piezoelectric pump was in sucting stage, but because the existence of this a series of staggered non-symmetry structures of tetrahedron corner angle that side of tetrahedron on longshore current body flow direction and other two sides form, the fluid volume that makes two DC tube of the both sides by being positioned at pump flow to pump chamber is inequality.When the pump chamber volume reduces, fluid flows out pump chambers by two DC tube 10 that are built in a series of staggered tetrahedron abaculus in the pump chamber and both sides, this moment, piezoelectric pump was in the discharge stage, but since on longshore current body flow direction side of tetrahedron and the existence of this a series of staggered non-symmetry structures of tetrahedron corner angle of forming of other two sides, it is inequality to make two DC tube of the both sides by being positioned at pump flow out the fluid volume of pump chambers.Analysis is flowed pipes when piezoelectric pump is in the suction and the stage of discharge from two, the size of the amount of the fluid volume that flows into and flow out may be summarized to be: it is many to flow to fluid volume when piezoelectric pump is in sucting stage, then piezoelectric pump be in discharge during the stage effluent fluid volume few; It is few to flow to fluid volume when piezoelectric pump is in sucting stage, then piezoelectric pump be in discharge during the stage effluent fluid volume many; On macroscopic view, piezoelectric pump always makes fluid flow into from first-class pipe, manages outflow from another stream, thereby has realized the one-way flow of fluid.
Compare with traditional conical flow pipe Valveless piezoelectric pump, the tetrahedron abaculus structure of using among the present invention, asymmetric two traditional conical stream pipes have been abandoned, some groups of staggered tetrahedron abaculus that are built in the pump chamber make that the asymmetric variation of the interior geometrical construction of pump chamber is more obvious, thereby can make this built in rotable multiblock valve less piezoelectric pump obtain bigger flow.But also can be by quantity to the tetrahedron abaculus that is built in pump chamber, each tetrahedron abaculus in pump chamber along perpendicular to the rotation of the vertical line of pump chamber bottom surface the time adjustment of these a series of Control Parameter such as residing position realize to the flow direction of liquid in the pump and the control of flow size with regulate, thereby the more wide actual application prospect that this pump is had.
Description of drawings
Fig. 1 has the valve piezoelectric pump schematic representation.
Fig. 2 conical flow pipe Valveless piezoelectric pump schematic representation.
Fig. 3 built in rotable multiblock valve less piezoelectric pump overall structure plan view.
Fig. 4 built in rotable multiblock valve less piezoelectric pump overall structure A-A sectional view.
Fig. 5 built in rotable multiblock valve less piezoelectric pump loam cake plan view.
Fig. 6 built in rotable multiblock valve less piezoelectric pump loam cake B-B sectional view.
Fig. 7 built in rotable multiblock valve less piezoelectric pump lower cover plan view.
Fig. 8 built in rotable multiblock valve less piezoelectric pump lower cover C-C sectional view.
Fig. 9 resilient pad plan view.
Figure 10 resilient pad D-D sectional view.
Figure 11 tetrahedron abaculus plan view.
Figure 12 tetrahedron abaculus plan view.
The oblique shaft side figure of Figure 13 tetrahedron abaculus
The one-sided type piezoelectric vibrator of Figure 14 schematic representation.
Figure 15 bilateral type piezoelectric vibrator schematic representation.
Among the figure: 1, the pump housing, 2, piezoelectric vibrator, 3, suction valve, 4, discharge valve, 5, the conical flow pipe, 6, the piezoelectric pump lower cover, 7, tetrahedron abaculus, 8, the piezoelectric pump loam cake, 9, resilient pad, 10, DC tube, 11, bolt hole, 12, piezoelectric ceramic, 13, tinsel, 14, pump inlet, 15, cylindrical groove.
Embodiment
The specific embodiment of the present invention is referring to Fig. 3～13.
This device includes piezoelectric pump loam cake 8, piezoelectric pump lower cover 6, and the two cooperates the formation pump chamber.Be provided with staggered tetrahedron piece 7 in this pump chamber, shown in Fig. 3,4, the number of tetrahedron abaculus 7 is 13.The structure of single tetrahedron abaculus 7 is referring to Figure 11～13, it is the tetrahedron copper abaculus that a little cannon plug that protrudes is arranged on the bottom surface, these a series of abaculus are placed in by cannon plug in a series of little cylindrical groove of being left on the bottom surface of pump chamber 15 as shown in Figure 7, cooperate to be Spielpassung.Also include DC tube 10, the rectangle tube seat of DC tube 10 on piezoelectric pump lower cover 6, leaving, itself and piezoelectric pump lower cover 6 become an integral body.Two DC tube 10 of pump chamber by both sides with pump inlet 14 and be communicated with, piezoelectric vibrator 2 is clinged at one by piezoelectric ceramic 12 and tinsel 13 to be formed, concrete structure is referring to Figure 13,14, the ladder place of the stepped through hole of piezoelectric vibrator 2 in the middle of piezoelectric pump loam cake 8 is bonded and fixed at, referring to Fig. 6.Resilient pad 9 is placed between piezoelectric pump loam cake 8 and the piezoelectric pump lower cover 6, plays the effect that prevents the pump seepage.Piezoelectric pump loam cake 8, resilient pad 9 and piezoelectric pump lower cover 6 use six Bolt Connection to be in the same place by bolt hole on every side 11.
Tetrahedron abaculus 7 can be done rotation at any angle in pump chamber, be used to regulate the flow of pump.When the gateway of 7 one sides of tetrahedron abaculus in the face of pump, other two formed corner angle in side are faced another gateway of pump, at this moment, on the bottom surface of tetrahedron abaculus 7, the line angulation of the high line of the bottom line of one of them side correspondence on the bottom surface and the gateway, both sides 14 of pump is 0 degree, the flow maximum of position pump as shown in Figure 3.Because tetrahedron abaculus 7 can be done the rotation of arbitrary position in pump chamber, wherein when tetrahedron abaculus 7 side bottom line as shown in Figure 3 line angulation of corresponding high line and the gateway, both sides 14 of pump on the bottom surface be 30 to spend, 90 degree, 150 degree, except 210 degree, six kinds of special circumstances of 270 degree and 330 degree, because in six kinds of above-mentioned special circumstances in the pump chamber on the longshore current body flow direction structure of abaculus be about strict symmetry, analyze pump theoretically and can not form flow.
Present embodiment adopts 220V, and the 50Hz alternating voltage also can use the voltage of other frequency; Use one-sided type piezoelectric vibrator, Ac be added on the two poles of the earth of piezoelectric vibrator 2---the sub-ceramic plate 12 of piezoelectricity and above the tinsel 13, make piezoelectric vibrator produce periodic axial bending distortion, thus the work of drive pressure electric pump.
In this enforcement, piezoelectric pump lower cover 6 and piezoelectric pump loam cake 8 adopt the plexiglass manufacturing, and a series of staggered tetrahedron abaculus 7 adopt the copper billet manufacturing.Piezoelectric vibrator adopts commercially available, and diameter is 30mm, the thick 0.1mm that is of piezoelectric constant and tinsel, and tinsel 13, material are brass.Resilient pad 9 is selected the elasticity macromolecular material for use, as adopting rubber or silica gel material.
Claims (4)
1, built in rotable multiblock valve less piezoelectric pump, mainly include piezoelectric pump loam cake (8), piezoelectric pump lower cover (6) and be arranged on piezoelectric vibrator (2) on the piezoelectric pump loam cake (8), it is characterized in that: also include two and pump inlet (14), tetrahedron abaculus (7) and be arranged on DC tube (10) on the piezoelectric pump lower cover (6), wherein, pumping inlet (14) is communicated with pump chamber by DC tube (10); Tetrahedron abaculus (7) is staggered in pump chamber and can rotates in pump chamber around the vertical line perpendicular to the pump chamber bottom surface.
2, built in rotable multiblock valve less piezoelectric pump according to claim 1, it is characterized in that: be fixed with outstanding cannon plug on the bottom surface of described tetrahedron abaculus (7), have the cylindrical groove (15) that matches with this cannon plug on the pump chamber bottom surface, tetrahedron abaculus (7) can rotate in this groove (15) by cannon plug.
3, built in rotable multiblock valve less piezoelectric pump according to claim 1 is characterized in that: described tetrahedron abaculus (7) is a positive tetrahedron.
4, built in rotable multiblock valve less piezoelectric pump according to claim 1 is characterized in that: tetrahedron abaculus (7) can rotate in 0～360 degree scope along the vertical line perpendicular to the pump chamber bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101145268A CN100410534C (en) | 2006-11-14 | 2006-11-14 | Built in rotable multiblock valve less piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101145268A CN100410534C (en) | 2006-11-14 | 2006-11-14 | Built in rotable multiblock valve less piezoelectric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948754A true CN1948754A (en) | 2007-04-18 |
| CN100410534C CN100410534C (en) | 2008-08-13 |
Family
ID=38018347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101145268A Expired - Fee Related CN100410534C (en) | 2006-11-14 | 2006-11-14 | Built in rotable multiblock valve less piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100410534C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104481860A (en) * | 2014-10-11 | 2015-04-01 | 北京联合大学 | Valveless piezoelectric pump of staggered annular flow pipe |
| CN104481860B (en) * | 2014-10-11 | 2017-01-04 | 北京联合大学 | Wrong thimble shape flow tube Valveless piezoelectric pump |
| CN109322817A (en) * | 2018-12-11 | 2019-02-12 | 上海交通大学 | A kind of Micropump manipulating microfluid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192197A (en) * | 1991-11-27 | 1993-03-09 | Rockwell International Corporation | Piezoelectric pump |
| JP3859627B2 (en) * | 2003-08-21 | 2006-12-20 | 株式会社鈴木 | Piezoelectric pump |
| CN100338361C (en) * | 2005-08-12 | 2007-09-19 | 北京工业大学 | Valveless piezoelectric pump |
| CN100338362C (en) * | 2005-10-14 | 2007-09-19 | 北京工业大学 | Built-in corrugated channel valveless piezoelectric pump |
| CN100338363C (en) * | 2005-10-21 | 2007-09-19 | 北京工业大学 | Rotary abaculus valveless piezoelectric pump |
-
2006
- 2006-11-14 CN CNB2006101145268A patent/CN100410534C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104481860A (en) * | 2014-10-11 | 2015-04-01 | 北京联合大学 | Valveless piezoelectric pump of staggered annular flow pipe |
| CN104481860B (en) * | 2014-10-11 | 2017-01-04 | 北京联合大学 | Wrong thimble shape flow tube Valveless piezoelectric pump |
| CN109322817A (en) * | 2018-12-11 | 2019-02-12 | 上海交通大学 | A kind of Micropump manipulating microfluid |
| CN109322817B (en) * | 2018-12-11 | 2019-07-26 | 上海交通大学 | A kind of Micropump manipulating microfluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100410534C (en) | 2008-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1181261C (en) | Pump | |
| CN200955485Y (en) | Single-chip-type flow-pipe valve-free piezoelectric pump | |
| CN102913422A (en) | Drag-reducing valveless piezoelectric pump with drag-reducing fluids | |
| CN1948754A (en) | Built in rotable multiblock valve less piezoelectric pump | |
| CN200964932Y (en) | Rotary multi-quadrat valve-free piezoelectric pump with built-in affixing rectangular groove | |
| CN108953123B (en) | A kind of micro-pump structure based on PVC-gel flexible drive | |
| CN200968273Y (en) | Rotatable multi-quadrat valveless piezoelectric pump with built-in attached oval-shaped groove | |
| CN100338361C (en) | Valveless piezoelectric pump | |
| CN203248325U (en) | Piezoelectric micropump based on synthetic jet | |
| CN100338362C (en) | Built-in corrugated channel valveless piezoelectric pump | |
| CN111102156B (en) | Adjustable reciprocating displacement pump | |
| CN2818843Y (en) | Single-vibrator and double-cavity piezo-electric pump without valve | |
| CN1306165C (en) | Reciprocating valveless pump with consecutively changeable cone angle | |
| WO2023019493A1 (en) | High-flow piezoelectric pump with steplessly adjustable pressure | |
| US20120312689A1 (en) | Pump | |
| CN109723629A (en) | A kind of piezoelectric chip pump | |
| CN1788164A (en) | Rotary compressor | |
| CN1711422A (en) | Variable volume flow rotor pump | |
| CN201190661Y (en) | Valveless piezoelectric pump | |
| CN211975303U (en) | Reciprocating displacement pump capable of continuously feeding | |
| CN109915347B (en) | Tower type miniature piezoelectric gas compressor | |
| CN105370548A (en) | Piezoelectric pump | |
| JPH11230058A (en) | Hydraulic positive-displacement machine | |
| CN109882387A (en) | A kind of piezo gas pump | |
| KR100804686B1 (en) | Bubble-powered micro pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |