CN105604920A - Side suction pipe valveless piezoelectric pump - Google Patents
Side suction pipe valveless piezoelectric pump Download PDFInfo
- Publication number
- CN105604920A CN105604920A CN201610016638.3A CN201610016638A CN105604920A CN 105604920 A CN105604920 A CN 105604920A CN 201610016638 A CN201610016638 A CN 201610016638A CN 105604920 A CN105604920 A CN 105604920A
- Authority
- CN
- China
- Prior art keywords
- pump
- main
- face
- pipe
- piezoelectric
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
Abstract
The invention discloses a side suction pipe valveless piezoelectric pump and belongs to the field of liquid machines. The side suction pipe valveless piezoelectric pump is characterized by comprising two identical piezoelectric vibrators which are arranged on the upper side and the lower side of a pump body in a face-to-face mode, the upper end face and the lower end face of the pump body are provided with counter bored holes, the piezoelectric vibrators are installed inside the counter bored holes, a supporting plate is arranged on the middle face, symmetric about the upper and lower piezoelectric vibrators, of a pump cavity, a step is arranged between the supporting plate and the bottom faces of the counter bored holes, the thickness of the supporting plate is smaller than the height of the pump cavity, a main outer side pipe and a main inner side pipe are machined in the middle perpendicular to the end face of the supporting plate, the diameter of the main outer side pipe is larger than that of the main inner side pipe, a circular branch pipe is machined inside the supporting plate on the axis perpendicular to the main outer side pipe and main inner side pipe, the diameter of the branch pipe is not larger than that of the main outer side pipe, the branch pipe is tangent with the joint face of the main outer side pipe and the main inner side pipe, a boss is arranged on the outer side of the pump body so that the branch pipe and the outer pipe can be connected, and the side face of the pump body is provided with a deflation hole and a closed bolt. The side suction pipe valveless piezoelectric pump is applied to the occasion that reverse flow is not allowed to exist in a liquid source.
Description
Technical field
The present invention relates to a kind of Valveless piezoelectric liquid mixing pump, belong to liquid machine field.
Background technology
Valveless piezoelectric pump is simple in structure, and energy converting between mechanical efficiency is high, and reliability is high, protects in following medical treatmentStrong, Aero-Space, the field such as micro electronmechanical has broad application prospects. But existing Valveless piezoelectric pump knotStructure, has reverse flow phenomenon at work. Structure that the present invention carries, can make Valveless piezoelectric pump at work,The liquid moment in arm remains on the state of the unidirectional inflow pump housing of pulsation, can make it be applied in fluid supplyDo not allow the occasion of reverse flow, this pump has also improved efficiency simultaneously.
Summary of the invention
The object of the invention is to: the liquid efflux body source all the time that piezoelectric pump is carried, makes to suck pump chamberLiquid can not be back to fluid supply.
Fig. 1 is the installation diagram of this pump principle of checking.
Side draught pipe Valveless piezoelectric pump, is characterized in that: two identical piezoelectric vibrators, and with the piezoelectric ceramics utmost pointThe side that property is identical, is arranged on the both sides up and down of the pump housing face-to-face, and there on two end faces up and down of the pump housing, have to be heavyHole, installs piezoelectric vibrator in counterbore, the space formation pump chamber in two piezoelectric vibrators and the pump housing 1, pump chamberBe a cylindrical, on the median surface of pump chamber with respect to upper and lower two piezoelectric vibrator symmetries, have a gripper shoe,Between fagging and the bottom surface of counterbore, there is a step, make the thickness of gripper shoe be less than the height of pump chamber, hanging downDirectly be processed with circular main outboard tube and circular main inside tube, main outside in the centre position of the end face of gripper shoeThe diameter of pipe is greater than main inside tube, on the axis perpendicular to main outboard tube and main inside tube, in gripper shoeAlso be processed with circular arm, the diameter of arm is not more than main outboard tube, arm and main outboard tube and main inner sideThe composition surface of pipe is tangent, and pump housing outside is provided with boss to facilitate arm to connect with outer pipeline, the side of the pump housingThere are air vent and blind bolt.
The operation principle of the side draught pipe Valveless piezoelectric pump that the present invention proposes is described below: two piezoelectricity of pump shakeSon 2 is with identical polarity access alternating voltage, and two piezoelectric vibrators 2 are under the effect of alternating voltage, sameTime to outside or the inner side warpage of pump chamber, be located at two piezoelectric vibrators 2 in first half cycle of alternating voltageTo the outside warpage (Fig. 6) of pump chamber, the volume of pump chamber 13 increases simultaneously, the pressure decreased of pump chamber 13,Liquid flows into main inside tube 11 along main outboard tube 5 and arm 9, and enters pump chamber (Fig. 7); Work as alternating voltageWhile entering second half period, voltage direction is contrary with first half period, the inside warpage of piezoelectric vibrator 2 (figure8), the volume of pump chamber 13 reduces, pressure rise, and the liquid in pump chamber 13 is extruded along main inside tube 11Go out pump chamber 13, because the diameter of main inside tube 11 is less than the diameter of main outboard tube 5, therefore liquid fromWhen main inside tube 11 flows into main outboard tube 5, can be attached at the interface of main inside tube 11 and main outboard tube 5The nearly lower scroll district that produces, sucks main outboard tube 5 by the liquid in arm 9, and simultaneously along main outboard tube 5Efflux pump outer (Fig. 9); Therefore, the liquid in arm 9 always flows to main outboard tube 5, keeps way flowMoving.
Brief description of the drawings
Fig. 1 installation diagram
Fig. 2 pump housing 1 top view
Fig. 3 pump housing 1 front view
Fig. 4 pump housing 1 stereogram
Fig. 5 pump housing 1 internal duct cutaway view
The work sheet of the piezoelectric vibrator 2 of Fig. 6 pump in the time inhaling journey
The liquid flow schematic diagram of Fig. 7 pump in the time inhaling journey
The work sheet of the piezoelectric vibrator 2 of Fig. 8 pump in the time of scheduling
The liquid flow schematic diagram of Fig. 9 pump in the time of scheduling
Detailed description of the invention
Embodiment of the present invention as Figure 1-Figure 5
Two identical piezoelectric vibrators 2, with the identical side of piezoelectric ceramics polarity, are arranged on the pump housing face-to-face1 both sides up and down, the structure of the pump housing 1 as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the pump housing 1 upper and lowerOn two end faces 12, there is counterbore 6,2, two piezoelectric vibrators of the interior installation piezoelectric vibrator of counterbore 62 and the pump housing 1Interior space forms pump chamber 13, and pump chamber 13 is a cylindrical, and pump chamber 13 shakes with respect to upper and lower two piezoelectricityOn the median surface of son 2 symmetries, there is a gripper shoe 4, between gripper shoe 4 and the bottom surface of counterbore 6, have a step 7,Make the thickness of gripper shoe 4 be less than the height of pump chamber 13, in the centre of the end face 14 perpendicular to gripper shoePosition is processed with circular main outboard tube 5 and main inside tube 11, and the diameter of main outboard tube 5 is greater than main inside tube11, on the axis perpendicular to main outboard tube 5 and main inside tube 11, in gripper shoe 4, be also processed with circleArm 9, the diameter of arm 9 is not more than main outboard tube 5, arm 9 and main outboard tube 5 and main inside tube 11Composition surface 15 tangent, the pump housing 1 outside is provided with boss 8 to facilitate arm 9 to connect with outer pipeline, the pump housingThere are air vent 10 and blind bolt 3 in 1 side.
Piezoelectric vibrator 2 sticks with glue and is connected on the pump housing 1 upper and lower surface, and the diameter of chamber pump 13 is 18mm, pump chamberHeight be 1.6mm, the thickness of gripper shoe 4 is 1.2mm, the diameter of main outboard tube 5 is 0.8mm,The diameter of main inside tube 11 is 0.4mm, and the diameter of arm 9 is 0.7mm, and piezoelectric vibrator 2 is 0.2mmThick brass plectane and piezoelectric ceramics is bonding forms. Piezoelectric vibrator diameter 20mm, the pump housing 1 external diameter 23mm.At 50V, under the alternating current effect of 50Hz, flow is 120g/min.
Claims (1)
1. side draught pipe Valveless piezoelectric pump, is characterized in that: two identical piezoelectric vibrators, and with piezoelectricityA pottery polarity identical side, is arranged on the both sides up and down of the pump housing, two ends up and down of the pump housing face-to-faceOn face, there is counterbore, piezoelectric vibrator is installed in counterbore, the space formation in two piezoelectric vibrators and the pump housing 1Pump chamber, pump chamber is a cylindrical, on the median surface of pump chamber with respect to upper and lower two piezoelectric vibrator symmetries, hasOne gripper shoe, has a step between gripper shoe and the bottom surface of counterbore, makes the thickness of gripper shoe be less than pumpThe height in chamber, is processed with circular main outboard tube and circle in the centre position of the end face perpendicular to gripper shoeMain inside tube, the diameter of main outboard tube is greater than main inside tube, perpendicular to main outboard tube and main inside tubeAxis on, in gripper shoe, be also processed with circular arm, the diameter of arm is not more than main outboard tube,The composition surface of Guan Yuzhu outboard tube and main inside tube is tangent, pump housing outside be provided with boss with facilitate arm withOuter pipeline connects, and there are air vent and blind bolt in the side of the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610016638.3A CN105604920B (en) | 2016-01-12 | 2016-01-12 | Side draught pipe Valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610016638.3A CN105604920B (en) | 2016-01-12 | 2016-01-12 | Side draught pipe Valveless piezoelectric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105604920A true CN105604920A (en) | 2016-05-25 |
| CN105604920B CN105604920B (en) | 2017-06-30 |
Family
ID=55985151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610016638.3A Expired - Fee Related CN105604920B (en) | 2016-01-12 | 2016-01-12 | Side draught pipe Valveless piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604920B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261476A (en) * | 2018-10-18 | 2019-01-25 | 四川大学 | A kind of novel back shroud for sandwich piezoelectric ultrasonic transducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196551A (en) * | 1997-01-10 | 1998-07-31 | Noritake Kiyuutou:Kk | Slurry force-feeding pump |
| US6132187A (en) * | 1999-02-18 | 2000-10-17 | Ericson; Paul Leonard | Flex-actuated bistable dome pump |
| CN104373324A (en) * | 2014-10-11 | 2015-02-25 | 北京联合大学 | Valveless piezoelectric pump with side parabola conical flow pipe |
| CN104405624A (en) * | 2014-10-11 | 2015-03-11 | 北京联合大学 | Valveless piezoelectric pump with segmentation different-diameter asymmetric arc-shaped pipe |
| CN104481860A (en) * | 2014-10-11 | 2015-04-01 | 北京联合大学 | Valveless piezoelectric pump of staggered annular flow pipe |
-
2016
- 2016-01-12 CN CN201610016638.3A patent/CN105604920B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196551A (en) * | 1997-01-10 | 1998-07-31 | Noritake Kiyuutou:Kk | Slurry force-feeding pump |
| US6132187A (en) * | 1999-02-18 | 2000-10-17 | Ericson; Paul Leonard | Flex-actuated bistable dome pump |
| CN104373324A (en) * | 2014-10-11 | 2015-02-25 | 北京联合大学 | Valveless piezoelectric pump with side parabola conical flow pipe |
| CN104405624A (en) * | 2014-10-11 | 2015-03-11 | 北京联合大学 | Valveless piezoelectric pump with segmentation different-diameter asymmetric arc-shaped pipe |
| CN104481860A (en) * | 2014-10-11 | 2015-04-01 | 北京联合大学 | Valveless piezoelectric pump of staggered annular flow pipe |
Non-Patent Citations (1)
| Title |
|---|
| 黄俊，等: "变截面"Y"型流管无阀压电泵原理及试验", 《振动.测试与诊断》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261476A (en) * | 2018-10-18 | 2019-01-25 | 四川大学 | A kind of novel back shroud for sandwich piezoelectric ultrasonic transducer |
| CN109261476B (en) * | 2018-10-18 | 2023-10-27 | 四川大学 | Novel back cover plate for sandwich piezoelectric ultrasonic transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105604920B (en) | 2017-06-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| 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: 20170630 Termination date: 20220112 |