CN207740147U - Import and export Valveless piezoelectric pump of the cavity with class pagoda shape bluff body - Google Patents
Import and export Valveless piezoelectric pump of the cavity with class pagoda shape bluff body Download PDFInfo
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- CN207740147U CN207740147U CN201820052659.5U CN201820052659U CN207740147U CN 207740147 U CN207740147 U CN 207740147U CN 201820052659 U CN201820052659 U CN 201820052659U CN 207740147 U CN207740147 U CN 207740147U
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- bluff body
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Abstract
The utility model discloses a kind of inlet and outlet Valveless piezoelectric pump of the cavity with class pagoda shape bluff body, including annular pump cover, the pump housing, piezoelectric patches, sealing ring；The pump housing lower face opens up import cavity and outlet cavity, class pagoda shape bluff body is set inside the import cavity, the outlet cavity also opens up bluff body, its shape is that class falls pagoda shape, the pump chamber upper surface opens up the annular seal groove for placing sealing ring, the piezoelectric patches respectively installs a sealing ring up and down, is sealed by gluing between the annular pump cover and sealing ring, and then fixed entire piezoelectric pump；The piezoelectric patches will produce under the excitation of ac signal and pump, pump chamber generation alternately changes, the pump housing is inside and outside to generate pressure difference, when piezoelectric patches is upwardly-deformed, more liquid flow into pump chamber by import cavity, when piezoelectric patches deforms downwards, more liquid are flowed out by exporting cavity, macroscopically realize the one-way flow of liquid；The utility model has many advantages, such as that simple in structure, resistance flowing effect is good, and in micrometeor drug injection, the fields such as agricultural drop irrigation have a good application prospect.
Description
Technical field
The utility model belongs to field of fluid machinery, specially a kind of inlet and outlet valveless of the cavity with class pagoda shape bluff body
Piezoelectric pump.
Background technology
In modern science and technology, piezoelectric pump integrates power source, inlet and outlet runner and pump chamber, greatly reduces conventional pump
Volume, have many advantages, such as higher accuracy and efficiency, and with not by electromagnetic interference, in micrometeor drug injection and agriculture
Industry trickle irrigation field has a good application prospect.
Valveless piezoelectric pump has simple in structure, volume smaller compared with having the advantages that valve piezoelectric pump, it is easier to realize its essence
Close control, but Valveless piezoelectric pump the shortcomings of that there is output flows is few again, reflux is serious, change Valveless piezoelectric pump so passing through
Structure so that improve its output flow and output pressure be always scientific research personnel's research hot spot.
Utility model content
In order to improve the output flow of Valveless piezoelectric pump, it is precious that the utility model patent discloses a kind of inlet and outlet cavity band class
The Valveless piezoelectric pump of tower-like bluff body.
In order to achieve the above object, the technical solution adopted in the utility model is：The piezoelectric pump is by annular pump cover (1), pump
Body (2), sealing ring (3) and piezoelectric patches (4) composition；
The pump housing lower face opens up an import cavity (2-1) and one outlet cavity (2-2), the pump housing (2) ring
The upper surface of shape side opens up annular seal groove (2-3), installation sealing ring (3), the pressure inside its annular seal groove (2-3)
Fixation, the pressure are attached by gluing between the annular outer rim lower surface and sealing ring (3) of the metal substrate of electric piece (4)
Also a sealing ring (3), annular outer rim upper surface and the sealing of the metal substrate of piezoelectric patches (4) are placed in electric piece (4) upper surface
The effect of enclosing (3) to be attached by gluing, and then reaching fixed piezoelectric patches (4), the annular pump cover of sealing ring top installation
(1), and then entire piezoelectric pump is fixed；
As further program of the utility model, the bluff body inside the import cavity is pagoda shape, bluff body
With being in that layered laminate is distributed between 4 layers and its, each layer of bluff body is gradually decreased around runner annular spread and flow diameter；
As further program of the utility model, the bluff body for outlet cavity (2-2) inside that the lower face opens up
Pagoda shape is fallen for class, and structure is that import cavity rotates 180 degree and forms；
As further program of the utility model, the annular pump cover (1) is cylindrical shape, opens up and is used in its lower face
The seal groove (1-1) of sealing ring (3) is installed.
The outstanding feature of the utility model is：
1, when piezoelectric patches is to when pump chamber flexural deformation, the pagoda shape bluff body in import cavity can reduce liquid from this chamber
Road flows outwardly, and more liquid is made to pass through outlet cavity outflow；
2, piezoelectric patches respectively installs a sealing ring up and down, and upper and lower two sealing rings can fix piezoelectric patches and reduce gluing
Influence to piezoelectric patches vibration performance.
Description of the drawings
Fig. 1 is the sectional view of piezoelectric pump.
Fig. 2 is the structural schematic diagram of annular pump cover.
Fig. 3 is the sectional view of the pump housing.
Fig. 4 is the structural schematic diagram of piezoelectric pump.
Specific implementation mode
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with the accompanying drawings to this reality
Be described in detail with novel, the description of this part be only it is exemplary and explanatory, should not be to the scope of protection of the utility model
There is any restriction effect.
As shown in Figure 1, the concrete structure of the utility model is：A kind of inlet and outlet valveless of the cavity with class pagoda shape bluff body
Piezoelectric pump is made of annular pump cover (1), the pump housing (2), sealing ring (3) and piezoelectric patches (4)；
As in Figure 2-4, the pump housing lower face opens up an import cavity (2-1) and one outlet cavity (2-2), institute
It is class pagoda shape to state the internal bluff body of import cavity (2-1), and bluff body has between 4 layers of distribution and every layer for layered laminate point
Cloth, each layer of bluff body are gradually decreased around runner annular spread and flow diameter；The internal choked flow of the outlet cavity (2-2)
Body is that pagoda shape, structure are that import cavity (2-1) rotation 180 degree forms；It opens the upper surface of the pump housing (2) circumferential lateral edge
If annular seal groove (2-3), installation sealing ring (3), the Metal Substrate of the piezoelectric patches (4) inside its annular seal groove (2-3)
Fixation is attached by gluing between the annular outer rim lower surface of plate and sealing ring (3)；Piezoelectric patches (4) upper surface
Place a sealing ring (3), the annular outer rim upper surface of the metal substrate of piezoelectric patches (4) and sealing ring (3) by gluing into
The effect of going and connect, and then reaching fixed piezoelectric patches (4)；An annular pump cover (1) is placed above the sealing ring (3), it is described
Annular pump cover (1) is cylindrical shape, opens up the seal groove (1-1) of installation sealing ring (3) in its lower face, passes through annular pump cover
(1), the cooperation of the pump housing (2), sealing ring (3) and piezoelectric patches (4), and then achieve the purpose that fixed piezoelectric pump.
The present apparatus is realized in its course of work, including first course of work and second course of work：
First course of work：The piezoelectric patches (4) is to when annular pump cover (1) flexural deformation, and intracavitary volume becomes larger, intracavitary pressure
Power reduces, and under the pressure difference inside and outside pump pump chamber, liquid enters pump chamber simultaneously by import cavity and outlet cavity, due to outlet plenum
The choked flow effect of road (2-2) the class bluff body of falling pagoda shape is higher than the resistance flowing effect of import cavity (2-1) class pagoda shape bluff body, more
More liquid is flowed by import cavity (2-1) inside pump chamber；
Second course of work：To when pump chamber flexural deformation, pump chamber volume reduces the piezoelectric patches (4), and cavity pressure increases,
For pressure inside pump chamber higher than external pressure, liquid is by import cavity (2-1) and outlet cavity (2-2) while arranging outward
Go out, since the resistance flowing effect of the class bluff body of falling pagoda shape of outlet cavity is less than the choked flow of the class pagoda shape bluff body of import cavity
Effect, more liquid flow out pump chamber by exporting cavity (2-2), macroscopically real by the cycle of the above-mentioned two course of work
The one-way flow of liquid is showed.
Specifically the principles of the present invention and embodiment are expounded herein, the explanation of above example is only used
Understand the method and its core concept of the utility model in help.The above is only the preferred embodiment of the utility model,
It should be pointed out that due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the common of the art
For technical staff, without departing from the principle of this utility model, several improvement, retouching or variation can also be made,
Above-mentioned technical characteristic can be combined in the right way；These improve retouching, variation or combination, or it is not improved will be real
Other occasions are directly applied to novel design and technical solution, are regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of inlet and outlet Valveless piezoelectric pump of the cavity with class pagoda shape bluff body, by annular pump cover (1), the pump housing (2), sealing ring
(3) it is formed with piezoelectric patches (4)；
The pump housing lower face opens up an import cavity (2-1) and one outlet cavity (2-2), the pump housing (2) annular side
The upper surface on side opens up annular seal groove (2-3), installation sealing ring (3), the piezoelectric patches inside its annular seal groove (2-3)
(4) fixation, the piezoelectric patches are attached by gluing between the annular outer rim lower surface of metal substrate and sealing ring (3)
(4) sealing ring (3) is also placed in upper surface, and annular pump cover (1), and then fixed entire piezoelectricity are installed above the sealing ring
Pump.
2. a kind of inlet and outlet Valveless piezoelectric pump of the cavity with class pagoda shape bluff body according to claim 1, feature exist
In：Bluff body inside the import cavity is class pagoda shape, and bluff body has 4 layers and is distributed for layered laminate, each layer
Bluff body annular spread and flow diameter gradually decreases.
3. a kind of inlet and outlet Valveless piezoelectric pump of the cavity with class pagoda shape bluff body according to claim 1, feature exist
In：The internal bluff body of outlet cavity (2-2) that the lower face opens up is that class falls pagoda shape, and structure is import cavity (2-
1) rotation 180 degree forms.
4. a kind of inlet and outlet Valveless piezoelectric pump of the cavity with class pagoda shape bluff body according to claim 1, feature exist
In：The annular pump cover (1) is cylindrical shape, and the seal groove (1-1) of installation sealing ring (3) is opened up in its lower face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052659.5U CN207740147U (en) | 2018-01-12 | 2018-01-12 | Import and export Valveless piezoelectric pump of the cavity with class pagoda shape bluff body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052659.5U CN207740147U (en) | 2018-01-12 | 2018-01-12 | Import and export Valveless piezoelectric pump of the cavity with class pagoda shape bluff body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207740147U true CN207740147U (en) | 2018-08-17 |
Family
ID=63122886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820052659.5U Expired - Fee Related CN207740147U (en) | 2018-01-12 | 2018-01-12 | Import and export Valveless piezoelectric pump of the cavity with class pagoda shape bluff body |
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| Country | Link |
|---|---|
| CN (1) | CN207740147U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973366A (en) * | 2019-04-11 | 2019-07-05 | 长春工业大学 | A kind of cone shaped elastic valve piezoelectric pump |
| CN110594137A (en) * | 2019-10-28 | 2019-12-20 | 南京航空航天大学 | Plate-type valveless piezoelectric pump and working method thereof |
| CN112177903A (en) * | 2020-09-29 | 2021-01-05 | 长春工业大学 | Rectangular cavity flexible membrane double-vibrator valveless piezoelectric pump |
| CN112196769A (en) * | 2020-09-29 | 2021-01-08 | 长春工业大学 | Valveless piezoelectric pump with pectoral fin imitating structure |
| CN112196773A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Annular cavity secondary vibration valveless piezoelectric pump |
| CN112943585A (en) * | 2021-01-27 | 2021-06-11 | 江苏海洋大学 | Steepest-descent linear flow tube structure and valveless piezoelectric pump with same |
| CN113299190A (en) * | 2021-05-21 | 2021-08-24 | 维沃移动通信有限公司 | Display module and electronic equipment |
-
2018
- 2018-01-12 CN CN201820052659.5U patent/CN207740147U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973366A (en) * | 2019-04-11 | 2019-07-05 | 长春工业大学 | A kind of cone shaped elastic valve piezoelectric pump |
| CN110594137A (en) * | 2019-10-28 | 2019-12-20 | 南京航空航天大学 | Plate-type valveless piezoelectric pump and working method thereof |
| CN112177903A (en) * | 2020-09-29 | 2021-01-05 | 长春工业大学 | Rectangular cavity flexible membrane double-vibrator valveless piezoelectric pump |
| CN112196769A (en) * | 2020-09-29 | 2021-01-08 | 长春工业大学 | Valveless piezoelectric pump with pectoral fin imitating structure |
| CN112196773A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Annular cavity secondary vibration valveless piezoelectric pump |
| CN112196773B (en) * | 2020-10-04 | 2022-11-08 | 长春工业大学 | Annular cavity secondary vibration piezoelectric pump |
| CN112943585A (en) * | 2021-01-27 | 2021-06-11 | 江苏海洋大学 | Steepest-descent linear flow tube structure and valveless piezoelectric pump with same |
| CN113299190A (en) * | 2021-05-21 | 2021-08-24 | 维沃移动通信有限公司 | Display module and electronic equipment |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20190112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |