CN204493143U - Bluff body Valveless piezoelectric pump - Google Patents
Bluff body Valveless piezoelectric pump Download PDFInfo
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- CN204493143U CN204493143U CN201520162607.XU CN201520162607U CN204493143U CN 204493143 U CN204493143 U CN 204493143U CN 201520162607 U CN201520162607 U CN 201520162607U CN 204493143 U CN204493143 U CN 204493143U
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- bluff body
- piezoelectric vibrator
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Abstract
The utility model belongs to fluid machinery technical field, relates to a kind of bluff body Valveless piezoelectric pump.Bluff body Valveless piezoelectric pump, comprise pump seat, pump side wall, pump upper cover, three surrounds pump chamber, and pump chamber end face is provided with piezoelectric vibrator; Pump seat is provided with bluff body, and bluff body has the first fluoran stream surface and the second fluoran stream surface; Pump side wall is provided with and connects pump chamber and first, second extraneous fluid inlet/outlet pipe, first, second fluid inlet/outlet pipe is symmetricly set on pump side wall, it is characterized in that: described piezoelectric vibrator is flexibly connected with pump chamber, be demountable structure, described pump seat is provided with deposition tank; Described bluff body has multiple, and the arrangement in " mountain " shape, the top of " mountain " shape and bottom are respectively towards first, second fluid inlet/outlet pipe.Improve piezoelectric vibrator and pump chamber connecting structure, be convenient to disassembling, assembling and replacing piezoelectric vibrator, multiple bluff body is in the arrangement of falling chevron, and it is larger anyway poor to flow resistance to be formed, and obtains better resistance flowing effect, thus can obtain higher pump duty.
Description
Technical field
The utility model belongs to fluid machinery technical field, relates to a kind of bluff body Valveless piezoelectric pump.
Background technique
Relative to conventional pump, piezoelectric pump does not need additional drives motor, but utilizes the inverse piezoelectric effect of piezoelectric constant to make piezoelectric vibrator produce distortion, then is realized fluid output by the volume-variation of distortion generation pump chamber or utilized piezoelectric vibrator to produce fluctuation carrying out fluid transfer.Valve piezoelectric pump and Valveless piezoelectric pump is had according to piezoelectric pump being divided into or without valve body in pump chamber.The fluid input of Valveless piezoelectric pump is communicated with outlet, the special shape on tube road, the special construction of pump chamber or in pump chamber, arrange the effect of choke apparatus realization " valve ".
The application number of claimant be 201210396143.X formerly application discloses a kind of bluff body choked flow Valveless piezoelectric pump.It is disclosed that following technical characteristics: " piezoelectric vibrator is arranged in pump chamber; Pump-foot is provided with at least one bluff body, bluff body is equally spaced to be arranged on the direct through groove of pump-foot." in first patent application; piezoelectric vibrator and pump chamber are fixing bonding connections; this Placement very flexible; once piezoelectric vibrator damages; change inconvenience, adopt the mode of bonding connection, need after changing piezoelectric vibrator 2-3 days dry the phase; ensure that viscose fully dries and devote oneself to work again, affect working efficiency; From the accompanying drawing in first patent application, bluff body is distributed on pump-foot, although the first fluoran stream surface of this structure bluff body and the second fluoran stream surface can form flow resistance difference, because the arranging structure of bluff body is even, can not reach better flow resistance poor.
Model utility content
The purpose of this utility model is to provide a kind of rational in infrastructure, bluff body Valveless piezoelectric pump that resistance flowing effect is good.
The technical solution of the utility model is: bluff body Valveless piezoelectric pump, and comprise pump seat, pump side wall, pump upper cover, three surrounds pump chamber, and pump chamber end face is provided with piezoelectric vibrator; Pump seat is provided with bluff body, and bluff body has the first fluoran stream surface and the second fluoran stream surface; Pump side wall is provided with and connects pump chamber and first, second extraneous fluid inlet/outlet pipe, first, second fluid inlet/outlet pipe is symmetricly set on pump side wall, and described piezoelectric vibrator is flexibly connected with pump chamber, is demountable structure; Described bluff body has multiple, and the arrangement in " mountain " shape, the top of " mountain " shape and bottom are respectively towards first, second fluid inlet/outlet pipe.
Preferably: be screw connection structure between pump upper cover and pump chamber, pump side wall be provided with overlap joint platform, piezoelectric vibrator is placed on overlap joint platform, and be provided with black box between pump upper cover and piezoelectric vibrator, black box all connects with pump upper cover and piezoelectric vibrator.This linkage structure of pump upper cover and pump chamber makes the dismounting of pump upper cover more convenient, after pump upper cover is installed, pump upper cover compresses piezoelectric vibrator by black box, and namely black box plays seal action, play again the effect of fixing piezoelectric vibrator, ensure piezoelectric vibrator stable operation.
Preferably: the first fluoran stream surface of bluff body is all towards the top of " mountain " shape arrangement, and the second fluoran stream surface is all towards the bottom of " mountain " shape arrangement.More detailed says, bluff body lines up multiple row, and play the bottom of " mountain " shape arrangement from these row at the top of " mountain " shape arrangement, in each row, the quantity of bluff body increases gradually, the arrangement width also symmetric increase of bluff body.This arrangement can realize following technique effect: when piezoelectric pump sucks fluid, and because the width of the bluff body bottom " mountain " shape top bluff body comparatively " mountain " shape is narrow, the resistance of convection cell is little, and the fluid therefore sucked from " mountain " shape top is many; In like manner, when piezoelectric pump displacement fluids, the fluid of discharging bottom " mountain " shape is many.
Preferably: the connecting part of the connecting part of piezoelectric vibrator and pump chamber, pump seat and pump side wall is provided with black box.
The beneficial effects of the utility model are:
(1) piezoelectric vibrator and pump chamber connecting structure is improved, fixedly change dismountable linkage structure into by bonding before, make pump assembling and change oscillator more convenient, also simplify pump chamber internal structure, pump chamber volume can be reduced further, be beneficial to the microminiaturization of pump and integrated.
(2) reconfigure the combining form of bluff body, multiple bluff body is in the arrangement of falling chevron, and it is larger anyway poor to flow resistance to be formed, and thus can obtain higher pump duty; Meanwhile, the fluid gap flow through between half segment forms complications, numerous gaps that are staggered and that merge are flowed, and decreases flow dead, effectively improves mix and blend effect.
Accompanying drawing explanation
Accompanying drawing 1 is the main TV structure schematic diagram of the utility model
Accompanying drawing 2 is the utility model plan structure schematic diagram
In figure, 1-first fluoran stream surface, 2-piezoelectric vibrator, 3-pump chamber, 4-pump seat, 5-fixed plate, 6-black box, 7-first fluid inlet/outlet pipe, 8-bluff body, 9-second fluid inlet/outlet pipe, 10-overlaps platform, 11-second fluoran stream surface, 12-pump upper cover,
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As depicted in figs. 1 and 2, bluff body Valveless piezoelectric pump, comprise pump seat 4, pump side wall, pump upper cover, three surrounds pump chamber 3, and pump chamber 3 end face is provided with piezoelectric vibrator 2; Pump side wall is provided with and connects pump chamber 3 and extraneous first fluid inlet/outlet pipe 7, second fluid inlet/outlet pipe 9, first fluid inlet/outlet pipe 7, second fluid inlet/outlet pipe 9 are symmetricly set on pump side wall, piezoelectric vibrator 2 is flexibly connected with pump chamber 3, for demountable structure, in the present embodiment, it is screw connection structure between pump upper cover 12 and pump chamber 3, pump side wall is provided with overlap joint platform 10, piezoelectric vibrator 2 is placed on overlap joint platform 10, be provided with black box 6 between pump upper cover 12 and piezoelectric vibrator 2, black box 6 all connects with pump upper cover 12 and piezoelectric vibrator 2.Be convenient to the dismounting changed piezoelectric vibrator 2 or carry out Valveless piezoelectric pump.Pump seat 4 is also provided with black box with the connecting part of pump side wall.Ensure the sealing of Valveless piezoelectric pump.
Pump seat 4 there is a fixed plate 5, fixed plate 5 is provided with bluff body 8, bluff body 8 has the first fluoran stream surface 1 and the second fluoran stream surface 11, and bluff body 8 has multiple, the arrangement in " mountain " shape, the top of " mountain " shape and bottom are respectively towards first fluid inlet/outlet pipe 7, second fluid inlet/outlet pipe 9.
First fluoran stream surface 1 of bluff body 8 is all towards the top of " mountain " shape arrangement, and the second fluoran stream surface 11 is all towards the bottom of " mountain " shape arrangement.More detailed says, bluff body 8 lines up multiple row, and play the bottom of " mountain " shape arrangement from these row at the top of " mountain " shape arrangement, in each row, the quantity of bluff body 8 increases gradually, the arrangement width also symmetric increase of bluff body 8.This arrangement can realize following technique effect: when piezoelectric pump sucks fluid, and because the width of the bluff body 8 bottom " mountain " shape top bluff body 8 comparatively " mountain " shape is narrow, the resistance of convection cell is little, and the fluid therefore sucked from " mountain " shape top is many; In like manner, when piezoelectric pump displacement fluids, the fluid of discharging bottom " mountain " shape is many.
A process flowed into and flow out of fluid is an operation cycle of Valveless piezoelectric pump, in this process, the top of " mountain " shape structure be arranged in due to bluff body 8 and the resistance difference of bottom convection cell, make the fluid entered from first fluid inlet/outlet pipe 7 all the time more than the fluid entered from second fluid inlet/outlet pipe 9, and from second fluid inlet/outlet pipe 9 flow out fluid all the time more than the fluid flowed out from first fluid inlet/outlet pipe 7, macroscopically fluid is for flow into from first fluid inlet/outlet pipe 7, from the technique effect that second fluid inlet/outlet pipe 9 flows out.In the process of fluid turnover, piezoelectric vibrator 2 double vibrations.
Claims (4)
1. bluff body Valveless piezoelectric pump, comprise pump seat, pump side wall, pump upper cover, three surrounds pump chamber, and pump chamber end face is provided with piezoelectric vibrator; Pump seat is provided with bluff body, and bluff body has the first fluoran stream surface and the second fluoran stream surface; Pump side wall is provided with and connects pump chamber and first, second extraneous fluid inlet/outlet pipe, first, second fluid inlet/outlet pipe is symmetricly set on pump side wall, it is characterized in that: described piezoelectric vibrator is flexibly connected with pump chamber, is demountable structure; Described bluff body has multiple, and the arrangement in " mountain " shape, the top of " mountain " shape and bottom are respectively towards first, second fluid inlet/outlet pipe.
2. bluff body Valveless piezoelectric pump as claimed in claim 1, it is characterized in that: be screw connection structure between described pump upper cover and pump chamber, pump side wall is provided with overlap joint platform, piezoelectric vibrator is placed on overlap joint platform, be provided with black box between pump upper cover and piezoelectric vibrator, black box all connects with pump upper cover and piezoelectric vibrator.
3. bluff body Valveless piezoelectric pump as claimed in claim 1, is characterized in that: the first fluoran stream surface of described bluff body is all towards the top of " mountain " shape arrangement, and the second fluoran stream surface is all towards the bottom of " mountain " shape arrangement.
4. bluff body Valveless piezoelectric pump as claimed in claim 1, is characterized in that: the connecting part of pump seat and pump side wall is provided with black box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162607.XU CN204493143U (en) | 2015-03-20 | 2015-03-20 | Bluff body Valveless piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162607.XU CN204493143U (en) | 2015-03-20 | 2015-03-20 | Bluff body Valveless piezoelectric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493143U true CN204493143U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520162607.XU Expired - Fee Related CN204493143U (en) | 2015-03-20 | 2015-03-20 | Bluff body Valveless piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493143U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673462A (en) * | 2016-01-21 | 2016-06-15 | 北京联合大学 | Side-suction pipe liquid mixing and conveying valve-less piezoelectric pump |
| CN106194676A (en) * | 2016-10-10 | 2016-12-07 | 青岛农业大学 | There is the Valveless piezoelectric pump of filtering function |
| CN106246516A (en) * | 2016-10-10 | 2016-12-21 | 青岛农业大学 | Infundibulate Valveless piezoelectric pump |
| CN112196775A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Composite bluff body hybrid piezoelectric pump with telescopic cavity |
| CN112412736A (en) * | 2020-11-18 | 2021-02-26 | 青岛农业大学 | Multi-cavity piezoelectric gas-liquid pump |
| CN115155405A (en) * | 2022-07-26 | 2022-10-11 | 广州大学 | Valveless one-way flow device based on piezoelectric ceramics |
-
2015
- 2015-03-20 CN CN201520162607.XU patent/CN204493143U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673462A (en) * | 2016-01-21 | 2016-06-15 | 北京联合大学 | Side-suction pipe liquid mixing and conveying valve-less piezoelectric pump |
| CN106194676A (en) * | 2016-10-10 | 2016-12-07 | 青岛农业大学 | There is the Valveless piezoelectric pump of filtering function |
| CN106246516A (en) * | 2016-10-10 | 2016-12-21 | 青岛农业大学 | Infundibulate Valveless piezoelectric pump |
| CN106194676B (en) * | 2016-10-10 | 2018-04-17 | 青岛农业大学 | valveless piezoelectric pump with filtering function |
| CN106246516B (en) * | 2016-10-10 | 2018-07-10 | 青岛农业大学 | Infundibulate Valveless piezoelectric pump |
| CN112196775A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Composite bluff body hybrid piezoelectric pump with telescopic cavity |
| CN112412736A (en) * | 2020-11-18 | 2021-02-26 | 青岛农业大学 | Multi-cavity piezoelectric gas-liquid pump |
| CN115155405A (en) * | 2022-07-26 | 2022-10-11 | 广州大学 | Valveless one-way flow device based on piezoelectric ceramics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |