CN201221457Y - Valve and vibrator integrated piezoelectric pump with valve - Google Patents
Valve and vibrator integrated piezoelectric pump with valve Download PDFInfo
- Publication number
- CN201221457Y CN201221457Y CNU2008200807805U CN200820080780U CN201221457Y CN 201221457 Y CN201221457 Y CN 201221457Y CN U2008200807805 U CNU2008200807805 U CN U2008200807805U CN 200820080780 U CN200820080780 U CN 200820080780U CN 201221457 Y CN201221457 Y CN 201221457Y
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- ring
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- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000806 Latten Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a valve-vibrator integrated check-valved piezoelectric pump, pertaining to the field of fluid machines. The operation efficiency of a check-valved piezoelectric pump is higher than the operation efficiency of a valveless piezoelectric pump, but the structure is more complex than the structure of the valveless piezoelectric pump; and enough space is required on the pump cavity to install two valves at least one of which is used for controlling the flow direction of the fluid. Two piezoelectric vibrators (8) are mounted on the suction inlet and the discharge outlet along the flow direction of the fluid; each piezoelectric vibrator comprises a metal piece with a through hole in the middle, a ring-shaped piezoelectric ceramic piece and a valve; the ring-shaped piezoelectric ceramic piece is coaxially cemented with the metal piece, and the valve is coaxially mounted on the other side opposite to the metal piece and the ring-shaped piezoelectric ceramic piece; or the valve and the ring-shaped are mounted on the same side, and the valve is mounted in the hole of the piezoelectric ceramic piece. The valve has a simple structure, the volume of the pump cavity can be largely reduced, and the pump flux is increased.
Description
Technical field
The utility model relates to a kind of valve and vibrator integrated piezoelectric pump with valve, belongs to field of fluid machinery.
Background technique
Being used for liquid delivery pump mainly can be categorized as: positive displacement pump and drum pump.At present, piezoelectric pump belongs to positive displacement pump mostly.Piezoelectric pump is because of its electromechanical conversion efficiency height, and no chemistry and electromagnetic pollution are so have broad application prospects in fields such as medical treatment, health, health cares.The no-trump piezoelectric pump that has according to pump valve is categorized as again: valve piezoelectric pump and Valveless piezoelectric pump are arranged.Have valve piezoelectric pump to rely on the flow direction of valve controlling liquid, inhaling journey during the halftime when pump work, suction valve is opened, and expulsion valve cuts out; When pump work in scheduling during the halftime, suction valve closure, expulsion valve is opened.Liquid does not have to reflux substantially, and working efficiency is higher, but structure is than valveless press pump complexity, the valve that needs two at least one controlling liquid of assembling to flow to, and pump chamber need provide the space for the installation of valve, so pump chamber and the pump housing are difficult for reducing.Fig. 1 is a kind of valve piezoelectric pump that typically has.
Valveless piezoelectric pump makes that the piezoelectric pump structure is simpler because saved the action valve body of making complexity, and processing and fabricating is easy.The support of the piezoelectric vibrator of Valveless piezoelectric pump is the pattern that adopts metal substrate to be fixed by periphery mostly, wherein typical a kind of is conical flow pipe Valveless piezoelectric pump, because it does not have valve, rely on special pump chamber or the tube flowing structure controlling liquid one-way flow on macroscopic view of shape.Fig. 2 is typical conical flow pipe Valveless piezoelectric pump.It has adopted a pair of inverted conical flow pipe, because the flow resistance of liquid when large port flows to portlet is different with the resistance that flows to large port from portlet, periodically inhale in journey, the scheduling process at pump and to produce difference in flow, thereby on macroscopic view, show as one-way flow.By the working principle of valveless press pump as can be known, its working efficiency has valve piezoelectric pump much lower.
The model utility content
It is a kind of simple in structure that the purpose of this utility model is to provide, need on pump chamber, not assemble the valve piezoelectric pump that has of two at least one valves, overcoming the above-mentioned defective that has valve piezoelectric pump pump chamber volume to be difficult for reducing, and can increase substantially a kind of valve and vibrator integrated piezoelectric pump with valve of pump duty.
A kind of valve and vibrator integrated piezoelectric pump with valve that the utility model provides, as shown in Figure 3, piezoelectric vibrator (8) connects firmly with pump chamber, and it is characterized in that: piezoelectric vibrator 8 self has valve 3, can rely on the inside and outside variation in pressure of pump chamber and opening and closing; Two such piezoelectric vibrator 8 longshore current directions of flow are installed on pump intake and the exhaust port in the same way; The structure of piezoelectric vibrator 8 as shown in Figure 4, by the tinsel 1 of centre band through hole, ring piezoelectric ceramic plate 2 and valve 3 combine as shown in Figure 5; Ring piezoelectric ceramic plate 2 is coaxial bonding with tinsel 1; Valve 3 is that a sheet material stamping-out goes out otch and makes, and otch is not communicated with, and it is divided into motion and standstill two-part with valve 3, and motion parts is the part that otch contains, and other parts are stationary part.Stationary part and tinsel 1 are bonding, and motion parts closes the through hole in the middle of the tinsel 1, and it can open or close according to the pressure size and Orientation that acts on thereon by the hole.Thereby formation valve.These two-part link at the otch two ends, and coupling part rigidity is very low, to guarantee the opening and closing smoothly under pressure of valve motion part.
Valve 3 is coaxial to be installed in the relative opposite side of tinsel 1 and ring piezoelectric ceramic plate 2, if the hole at ring piezoelectric ceramic plate 2 middle parts is enough big, valve 3 also can be installed with ring piezoelectric ceramic plate 2 homonymies, is installed in the hole of ring piezoelectric ceramic plate 2.At this moment, the flow direction of valve 3 control fluids is opposite with above-mentioned installation method.
Fig. 8 is the suction journey fundamental diagram of this pump.Two piezoelectric vibrators in the pump are applied the opposite alternating voltage of phase place, and under the effect of alternating voltage, piezoelectric vibrator is done periodically back and forth buckling deformation.Inhaling journey in the halftime, owing to the voltage on two piezoelectric vibrators is opposite, the left side piezoelectric vibrator is out of shape to the left, and the right side piezoelectric vibrator is out of shape to the right, the volume of pump chamber increases, the pump chamber internal pressure reduces, when internal pressure is lower than external pressure, because structural design features, valve open on the piezoelectric vibrator of right side, and the valve closing on the piezoelectric vibrator of left side, along with the reduction of cavity pressure and the unlatching of right side valve, outside liquid flows into pump chamber from the right side of pump; Along with variation of AC voltage, two piezoelectric vibrators begin to be out of shape round about, pump has entered the scheduling halftime, as shown in Figure 9, in scheduling, the left side piezoelectric vibrator is out of shape to the right, the right side piezoelectric vibrator is out of shape to the left, and the volume of pump chamber diminishes, the increased pressure in the chamber, when internal pressure is higher than external pressure, since structural design features, the valve open on the piezoelectric vibrator of left side, and the valve closing on the piezoelectric vibrator of right side, along with the unlatching with the left side valve of increasing of pump chamber internal pressure, the liquid in the pump chamber flows out to the left side of pump in pump chamber; Under the effect of alternating voltage, more than to inhale journey and scheduling and alternately occur, pump has been transported to liquid the left side of pump from the right side of pump.
Used the novel piezoelectric oscillator in the utility model, make valve piezoelectric pump both save two valves installing on the conventional piezoelectric pump middle pump body, two piezoelectric vibrators have been installed in the pump chamber of equal volume again, working efficiency increases substantially, thereby makes this pump have more wide actual application prospect.
Description of drawings
Fig. 1 has the valve piezoelectric pump schematic representation;
Fig. 2 conical flow pipe Valveless piezoelectric pump schematic representation;
A kind of valve and vibrator integrated piezoelectric pump with valve structural drawing of Fig. 3 the utility model;
Fig. 4 (a) piezoelectric vibrator plan view; Fig. 4 (b) piezoelectric vibrator left view;
Fig. 5 (a) valve 3; Fig. 5 (b) ring piezoelectric ceramic plate 2; Fig. 5 (c) tinsel 1;
The another kind of structural front view of Fig. 6 (a) piezoelectric vibrator 8; Fig. 6 (b) piezoelectric vibrator 8 another kind of structure left views;
The annular valve 10 of Fig. 7 (a); Fig. 7 (b) orifice plate tinsel 9;
A kind of valve and vibrator integrated piezoelectric pump with valve of Fig. 8 the utility model is inhaled the journey fundamental diagram;
A kind of valve and vibrator integrated piezoelectric pump with valve scheduling of Fig. 9 the utility model fundamental diagram.
Among the figure: 1, tinsel, 2, the ring piezoelectric ceramic plate, 3, valve, 4, bolt, 5, pump cover, 6, the pump housing, 7, seal washer, 8, piezoelectric vibrator, 9, the orifice plate tinsel, 10, annular valve, 11, the circular piezoelectric oscillator.
Embodiment
Embodiment of the present utility model is referring to Fig. 3～5, two pump covers 5 are fixed on piezoelectric vibrator 8 in the pump housing 6 by seal washer 7 and six bolts 4, annular sheet metal 1 in the piezoelectric vibrator 8 is that 0.1mm is thick, external diameter 30mm, the latten of internal diameter 4mm, ring piezoelectric ceramic plate 2 external diameter 20mm, internal diameter 5mm; Valve 3 is made for the sheet rubber of 0.2mm.
Two piezoelectric vibrators insert the opposite 220V of phase place, 50Hz alternating voltage, the work of drive pressure electric pump in this enforcement.The flow of pump reaches 650mL/min.
Claims (1)
1. valve and vibrator integrated piezoelectric pump with valve, piezoelectric vibrator (8) connects firmly with pump chamber, and it is characterized in that: two piezoelectric vibrators (8) longshore current direction of flow is installed on pump intake and the exhaust port in the same way; Piezoelectric vibrator (8) is by the tinsel (1) of centre band through hole, and ring piezoelectric ceramic plate (2) and valve (3) combine;
Ring piezoelectric ceramic plate (2) is coaxial bonding with tinsel (1), valve (3) is that a sheet material stamping-out goes out disconnected otch and makes, otch is divided into motion and standstill two-part with valve (3), and motion parts is the part that otch contains, and other parts are stationary part; Stationary part and tinsel (1) are bonding, and motion parts closes the through hole in the middle of the tinsel (1);
Coaxial tinsel (1) and the relative opposite side of ring piezoelectric ceramic plate (2) of being installed in of valve (3); Perhaps valve (3) is installed with ring piezoelectric ceramic plate (2) homonymy, and valve (3) is installed in the hole of piezoelectric ceramic (2);
Perhaps piezoelectric vibrator (8) is by orifice plate tinsel (9), annular valve (10), the coaxial assembling of circular piezoelectric oscillator (11); Annular valve (10) goes out several disconnected otch for the mode stamping-out with stamping-out on the sheet material of an annular, and otch is divided into motion parts and stationary part with valve, and the part that otch contains is a motion parts, and all the other are stationary part; Stationary part and orifice plate tinsel (9) are bonding, and motion parts closes the hole on the orifice plate tinsel (9); It is porose that orifice plate tinsel (9) is gone up distribution, and the motion parts of annular valve (10) covers the hole of orifice plate tinsel (9); Circular piezoelectric oscillator (11) is assemblied in the ring of annular valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200807805U CN201221457Y (en) | 2008-05-23 | 2008-05-23 | Valve and vibrator integrated piezoelectric pump with valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200807805U CN201221457Y (en) | 2008-05-23 | 2008-05-23 | Valve and vibrator integrated piezoelectric pump with valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221457Y true CN201221457Y (en) | 2009-04-15 |
Family
ID=40574965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200807805U Expired - Fee Related CN201221457Y (en) | 2008-05-23 | 2008-05-23 | Valve and vibrator integrated piezoelectric pump with valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221457Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328879B (en) * | 2008-05-23 | 2010-06-23 | 北京联合大学 | Valve and vibrator integrated piezoelectric pump with valve |
| CN103915560A (en) * | 2013-01-09 | 2014-07-09 | 林淑媛 | Piezoelectric ceramic piece |
| CN104270031A (en) * | 2014-08-15 | 2015-01-07 | 大连理工大学 | Multi-level precision positioning piezoelectric actuator |
| CN104333342A (en) * | 2014-10-22 | 2015-02-04 | 吉林大学 | Piezoelectric vibrator comprising substrate with one-way valve |
| CN110364472A (en) * | 2019-07-22 | 2019-10-22 | 燕山大学 | A kind of micro- vibration actuating vacuum sucking pen |
-
2008
- 2008-05-23 CN CNU2008200807805U patent/CN201221457Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328879B (en) * | 2008-05-23 | 2010-06-23 | 北京联合大学 | Valve and vibrator integrated piezoelectric pump with valve |
| CN103915560A (en) * | 2013-01-09 | 2014-07-09 | 林淑媛 | Piezoelectric ceramic piece |
| CN104270031A (en) * | 2014-08-15 | 2015-01-07 | 大连理工大学 | Multi-level precision positioning piezoelectric actuator |
| CN104333342A (en) * | 2014-10-22 | 2015-02-04 | 吉林大学 | Piezoelectric vibrator comprising substrate with one-way valve |
| CN110364472A (en) * | 2019-07-22 | 2019-10-22 | 燕山大学 | A kind of micro- vibration actuating vacuum sucking pen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20100523 |