CN206129570U - Bionical pump based on flexible piezo -actuator - Google Patents
Bionical pump based on flexible piezo -actuator Download PDFInfo
- Publication number
- CN206129570U CN206129570U CN201621098451.4U CN201621098451U CN206129570U CN 206129570 U CN206129570 U CN 206129570U CN 201621098451 U CN201621098451 U CN 201621098451U CN 206129570 U CN206129570 U CN 206129570U
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- China
- Prior art keywords
- pump housing
- elastic
- flexible piezoelectric
- pump
- pump body
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Abstract
The utility model relates to a bionical pump based on flexible piezo -actuator, including inlet tube, entry check valve, the pump body, pump body lateral wall, flexible piezoelectricity fiber composite material, base plate, export check valve and outlet pipe. The utility model discloses an inlet tube is made to the elastic silica gel material, the outlet pipe and the pump body, and two symmetrical arrangement's flexible piezoelectricity fiber composite material glues and constitute flexible piezo -actuator jointly on the base plate, and the base plate is closely adhere with the pump body, and pump body both sides face is inwards sunken at initial condition. The inlet tube, the ingate, the entry check valve, the outlet hole, the export check valve, the outlet pipe from the bottom up arrange in proper order. The utility model discloses the flexible piezoelectricity fiber composite material of make full use of produces deformations under alternating voltage's drive, drive closely glue with it and the motion of the elasticity pump body, realize fluidic unilateral movement in the pump chamber through opening and shutting of check valve, it is simple to have a mechanical structure, scaling height, the easy characteristics of controlling are pressed to the pump chamber.
Description
Technical field
This utility model belongs to micromechanics electronic engineering field, and in particular to a kind of based on the bionical of flexible piezoelectric driver
Pump.
Background technology
Micropump can convey micro gas and liquid, or gas-liquid mixture, it is considered to be the weight in microfluid system
Want part thus, receive the common concern of people.Due to Micropump energy accurate flow control, it is in microchemical analysis and inspection
The field such as survey, micro drug injection, printing ink array, the cooling of integrated electronics, fuel micro-injection has extensively
Application.Piezoelectric fibre composite material piezoelectric patches applies it to field of micropumps as a kind of novel piezoelectric material, is a kind of complete
The innovation in face and bold trial.The piezoelectric micropump of the type have simple structure, lightweight, the low, controllability of consuming energy it is strong, without electricity
The advantages of magnetic disturbance, and can by changing voltage or frequency come controlled output flow, therefore, its have it is quite wide should
Use prospect.
The content of the invention
This utility model provides a kind of bionic pump based on flexible piezoelectric driver, it is therefore intended that using flexible piezoelectric fiber
Composite is frivolous and the characteristics of be flexibility, which is combined with elastic silica gel material, a kind of new, simple structure of design, can
The bionic pump of accurate flow control.
Above-mentioned purpose is mainly achieved through the following technical solutions：A kind of bionic pump based on flexible piezoelectric driver includes
Inlet tube, inlet one-way valve, the elastic pump housing, pump body sidewall, flexible piezoelectric fibrous composite, substrate and go out Outlet check valves
Mouth pipe.Wherein inlet tube, the outlet pump housing, the elastic pump housing and pump body sidewall are made using silica gel material.Due to flexible piezoelectric fibre
After dimension composite loading alternating voltage, motion mode is to produce dilatation along length of material direction, and this device needs a left side
Right translation, then increases substrate in flexible piezoelectric fibrous composite bottom and enables whole drive part to produce bending change
Shape.Flexible piezoelectric fibrous composite and the substrates into intimate that correspondence position is arranged on the downside of which are pasted and collectively constitute flexible piezoelectric driving
Device.Act in alternating voltage, flexible piezoelectric driver produces cyclic bending deformation, drive the elastic pump housing table of sum closely viscous therewith
Face moves back and forth so that cavity volume alternately becomes big and diminishes, and realizes the one-way movement of fluid using the folding of check valve.
The correspondence position that respectively there is an aperture, substrate the upper and lower both sides center of the elastic pump housing also has hole in perforate, and substrate
Diameter be slightly larger than the diameter of inlet tube and outlet.Inlet one-way valve is adhered under pump chamber cavity using silicone rubber adhesive
The inner surface of STH, i.e., positioned inside cavity, Outlet check valves are adhered to the outer surface of pump chamber cavity upper opening, that is, be located at
Outside the pump housing.Inlet tube and outlet are each passed through the appearance that perforate on substrate is pasted on the center perforate of elastic pump housing two ends
Face.
In an initial condition, two symmetrical sides of the elastic pump housing of non-sticking flexible piezoelectric actuator are inwardly naturally recessed
Fall into.
Description of the drawings
Fig. 1 is schematic diagram when a kind of bionic pump based on flexible piezoelectric driver of this utility model is static.
Fig. 2 is a kind of substrate schematic diagram of the bionic pump based on flexible piezoelectric driver of this utility model.
Fig. 3 is a kind of generalized section of the bionic pump based on flexible piezoelectric driver of this utility model.
Fig. 4 is that elastic silica gel pump housing volume becomes big, and fluid sucks the schematic diagram of cavity.
Fig. 5 is that elastic silica gel pump housing volume becomes big, and fluid sucks the generalized section of cavity.
Fig. 6 is that elastic silica gel pump housing volume diminishes, and fluid discharges the schematic diagram of cavity.
Fig. 7 is that elastic silica gel pump housing volume diminishes, and fluid discharges the generalized section of cavity.
Specific embodiment
With reference to Fig. 1, a kind of bionic pump based on flexible piezoelectric driver of this utility model, it is that, by outlet 1, outlet is unidirectional
Valve 2, the elastic pump housing 3, pump body sidewall 4, inlet tube 5, inlet one-way valve 6, flexible piezoelectric fibrous composite 701,702 groups of substrate
Into, wherein:
The flexible piezoelectric fibrous composite 701 that two panels is arranged symmetrically is bonded on the substrate 702 of material and constitutes flexible piezoelectric
Driver 7, enables the whole drive part in the presence of alternating voltage to produce flexural deformation, 702 Internal periphery of substrate and elasticity
3 outer surface of the pump housing closely sticks together.
The elastic pump housing correspondence position that respectively there is an aperture, substrate 702 both sides about 3 is also provided with hole on hole, and substrate 702
Diameter be slightly larger than the diameter of outlet 1 and inlet tube 5, inlet one-way valve 6 is pasted on by elastic pump using silicone rubber bonding agent
The upside of 3 lower opening of body, i.e., inside pump chamber, Outlet check valves 2 are pasted on the elastic pump housing 3 on the upside of hole, i.e., outside pump chamber
Portion.Outlet 1 is adhered on the upside of the elastic pump housing 3 by perforate on substrate 702, and inlet tube 5 is adhered to by 702 times perforates of substrate
On the downside of the elastic pump housing 3.
The system that the elastic pump housing 3, pump body sidewall 4, inlet one-way valve 6 and Outlet check valves 2 collectively constitute a closing,
In the case of not loading alternating voltage, the flexible piezoelectric fibrous composite 701 that two panels is arranged symmetrically is viscous in an initial condition
702 outer surface of substrate of natural torsion laterally, the inside depression naturally of the elastic pump housing 3 its pump body sidewall 4.In alternating voltage
Under effect, flexible piezoelectric fibrous composite 701 does and extends, the reciprocating motion of shortening.When the symmetrical bonding in 3 both sides of the elastic pump housing
When flexible piezoelectric fibrous composite 701 extends, due to the restriction of substrate 702 so that the flexible piezoelectric driver 7 of both sides simultaneously
Deformation is bent outwardly by equilbrium position simultaneously, is driven and 3 two sides of the elastic pump housing of 702 bonding of substrate is moved out simultaneously, elasticity
The pump body sidewall 4 of the pump housing 3 is acted on by 702 bandy power of substrate, and the elastic pump housing 3 and 4 long axis length of pump body sidewall reduce,
Minor axis length increases, and pump body sidewall 4 is changed into plane, the volume increase of the elastic pump housing 3, positioned at elastic pump from inside natural depression
The Outlet check valves 2 of 3 upper side external of body are closed, while the inlet one-way valve 6 positioned at 3 lower inner part of the elastic pump housing is opened, fluid
From the outside through being flowed in pump chamber by inlet tube 5 and the inlet one-way valve 6 opened.
When the symmetrical bonding in 3 both sides of the elastic pump housing flexible piezoelectric fibrous composite 701 by elongation state to poised state
When, due to the restriction of substrate 702,7 crooked radian of flexible piezoelectric driver of the symmetrical bonding in both sides is gradually reduced until recovering flat
Weighing apparatus state, pump body sidewall 4 return to nature depression by the flat state that Tensile becomes, and in the process, inlet one-way valve 6 is closed
Close, Outlet check valves 2 are opened, in the fluid from pump chamber in the elastic pump housing 3, Jing Outlet check valves 2 and outlet 1 flow out, until flat
Weighing apparatus state, now pump chamber internal and external pressure balance, inlet one-way valve 6 and Outlet check valves 2 are turned off.
When the flexible piezoelectric fibrous composite 7 of the symmetrical bonding in cavity both sides shortens simultaneously, due to the limit of substrate 702
System so that the flexible piezoelectric driver 7 of both sides is produced simultaneously by the inside flexural deformation in equilbrium position, drives and substrate 702 glues
3 two sides of the elastic pump housing of patch is inwardly moved simultaneously, and the pump body sidewall 4 of the elastic pump housing 3 is made by 702 aduncate power of substrate
With, the elastic pump housing 3 and the increase of 4 long axis length of pump body sidewall, minor axis length reduces, pump body sidewall 4 by the degree aggravation that caves inward,
The volume-diminished of the elastic pump housing 3, the inlet one-way valve 6 positioned at 3 lower inner part of the elastic pump housing are closed, while being located at the elastic pump housing 3
The Outlet check valves 2 of upper side external are opened, and the fluid inside pump chamber continues through the Outlet check valves 2 and outlet 1 of opening and flows
Go out.
When the flexible piezoelectric fibrous composite 701 of the symmetrical bonding in 3 both sides of the elastic pump housing is by shortening recovering state equilibrium-like
During state, due to the restriction of substrate 702, the crooked radian of the piezoelectric actuator 7 of the symmetrical bonding in both sides is gradually increased until that recovery is flat
Weighing apparatus state, 4 degree of caving inward of pump body sidewall diminish, and return to nature depression, in the process, due to the effect entrance of pressure
Check valve 6 is opened, and Outlet check valves 2 are closed, and fluid flows into pump chamber by outside Jing inlet tubes 5 and inlet one-way valve 6, until balance
State, now, inlet one-way valve 6 and Outlet check valves 2 are turned off.The continuously-directional conveying of fluid is realized in and so on motion.
Claims (4)
1. a kind of bionic pump based on flexible piezoelectric driver, comprising outlet (1), Outlet check valves (2), the elastic pump housing (3),
Pump body sidewall (4), inlet tube (5), inlet one-way valve (6), flexible piezoelectric fibrous composite (701), substrate (702)；Which is special
Levy and be：Inlet tube (5), outlet (1), the elastic pump housing (3) and pump body sidewall (4) are made up of silica gel material；The elastic pump housing (3)
The correspondence position that respectively there is a perforate, substrate (702) upper and lower ends center also has a perforate, substrate (702) inner surface respectively
Closely stick together with the elastic pump housing (3) outer surface；In original state, the elastic pump housing (3), pump body sidewall (4), entrance list
To the system that valve (6) and Outlet check valves (2) constitute a closing, wherein, two pump body sidewalls (4) of the elastic pump housing (3) to
Sunken inside.
2. a kind of bionic pump based on flexible piezoelectric driver according to claim 1, it is characterised in that：Inlet tube (5)
The outer surface of the elastic pump housing (3) two ends center perforate is pasted on outlet (1)；Inlet one-way valve (6) is pasted on elasticity
The inner surface of the pump housing (3) ingate, i.e., it is internal positioned at the elastic pump housing (3)；Outlet check valves are pasted on the elastic pump housing (3) outlet opening
Outer surface, i.e., it is outside positioned at the elastic pump housing (3).
3. a kind of bionic pump based on flexible piezoelectric driver according to claim 1, it is characterised in that：The symmetrical cloth of two panels
The flexible piezoelectric fibrous composite (701) put is bonded on substrate (702) and collectively constitutes flexible piezoelectric driver (7), in alternation
In the presence of voltage, flexible piezoelectric fibrous composite (701) produces reciprocal telescopic deformation along its machine direction, in substrate
(702) under cooperation, flexible piezoelectric driver (7) sagging moment and hogging moment are alternately produced, substrate (702) the band dynamic elasticity pump housing
(3) side wall is moved together, and the elastic pump housing (3) and pump body sidewall (4) experience axial length elongation are while what cross sectional dimensions reduced
Volume reduces and axial length shortens while the cyclic process of the volume increase of cross sectional dimensions increase.
4. a kind of bionic pump based on flexible piezoelectric driver according to claim 1, it is characterised in that：The elastic pump housing
(3) pump body sidewall (4) is caved inward in an initial condition, it is therefore intended that, it is to avoid it is when the elastic pump housing (3) volume increases, flexible
Piezoelectric actuator (7) axial tension is excessive, makes remaining two side of the elastic pump housing (3) that tear to occur, causes whole device air-tightness
Change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098451.4U CN206129570U (en) | 2016-10-05 | 2016-10-05 | Bionical pump based on flexible piezo -actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098451.4U CN206129570U (en) | 2016-10-05 | 2016-10-05 | Bionical pump based on flexible piezo -actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129570U true CN206129570U (en) | 2017-04-26 |
Family
ID=58571092
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621098451.4U Expired - Fee Related CN206129570U (en) | 2016-10-05 | 2016-10-05 | Bionical pump based on flexible piezo -actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246515A (en) * | 2016-10-05 | 2016-12-21 | 吉林大学 | A kind of bionic pump based on flexible piezoelectric driver |
-
2016
- 2016-10-05 CN CN201621098451.4U patent/CN206129570U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246515A (en) * | 2016-10-05 | 2016-12-21 | 吉林大学 | A kind of bionic pump based on flexible piezoelectric driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170426 Termination date: 20191005 |