CN2818843Y - Single-vibrator and double-cavity piezo-electric pump without valve - Google Patents
Single-vibrator and double-cavity piezo-electric pump without valve Download PDFInfo
- Publication number
- CN2818843Y CN2818843Y CN 200520029248 CN200520029248U CN2818843Y CN 2818843 Y CN2818843 Y CN 2818843Y CN 200520029248 CN200520029248 CN 200520029248 CN 200520029248 U CN200520029248 U CN 200520029248U CN 2818843 Y CN2818843 Y CN 2818843Y
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- Prior art keywords
- chamber
- pump
- working chamber
- piezoelectric
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a single vibrator and double chamber piezoelectric pump without a valve. The utility model is characterized in that the shaft center of a pump body is a working chamber, an insulating piezoelectric vibrator is arranged in the working chamber, the middle part of the pump body along the axial direction is provided with two water inlets which are communicated with the working chamber, a transversal cushion chamber is arranged in the upper part of the working chamber, the other end is connected with a water outlet channel, and a double chamber water flow channel is composed of the water inlet channel, the working chamber, the cushion chamber and the water outlet channel. The piezoelectric vibrator generates an up and down bending vibration deformation under the energization sinusoidal alternating electric signals, so the volumes of the two pump chambers occur alternating changes of increasing and reducing, and a definite difference of flow quantity exists when fluids flow through the two taper-shaped water inlets, so the continuous suction and discharge from the water outlet channel are realized ultimately in a macro way. The utility model adopts an insulating piezoelectric vibrator structure to change the working chamber into two chambers, a continuous low pulse output is realized, the output flow rate and the work efficiency of a piezoelectric pump without a valve are raised, and the output flow tends to be steady.
Description
Technical field
The utility model relates to a kind of architecture advances of Valveless piezoelectric pump, discloses a kind of simple oscialltor dual chamber Valveless piezoelectric pump, belongs to tiny flow quantity drive mechanism technical field.
Background technique:
The Erik Stemme of Sweden Chalmers polytechnical university Computer Engineering Dept. proposed in 1993 to utilize collapsible tube/expanding duct to make Valveless piezoelectric pump first, when the pump chamber Volume Changes, liquid flows into simultaneously or discharges from import and outlet, but because collapsible tube and expanding duct special construction, it is different with the flow of discharging that each circulation inlet/outlet sucks.When cavity increased, import (as expanding duct) fluid pressure loss is less than the outlet fluid pressure loss, and was many from the import influent; On the contrary, when the pump chamber volume reduced, it is many that the flowing fluid ratio inlet that outlet is discharged is discharged.Therefore, when pump chamber volume ceaselessly during alternate, just formed the one-way flow of fluid.
At present, utilize Piezoelectric Driving both at home and abroad, no matter be valveless, valve piezoelectric pump is arranged, still the piezoelectric pump of single chamber, two-chamber and multi-cavity all is to utilize piezoelectric vibrator substrate one side and pump housing formation active chamber.For paste piezoelectric ceramic one side can not be directly as the working cavity of piezoelectric pump, reason is: two connect lead and are connected on the piezoelectric ceramic and scale copper of piezoelectric vibrator with soldering respectively, piezoelectric ceramic all can not directly contact with water under the energising situation with exposed solder joint, otherwise, during the piezoelectric vibrator energising, water is by electrolysis, form the conductor of positive and negative electric charge, piezoelectric ceramic is punctured, damage piezoelectric vibrator, therefore, restricted the using scope of piezoelectric pump.
Summary of the invention
The utility model discloses a kind of simple oscialltor dual chamber Valveless piezoelectric pump, and purpose is intended to improve the Valveless piezoelectric pump output performance, solves the problem that its output flow is little, the flow output fluctuation big, working efficiency is lower.
Technical solution of the present utility model is as follows: pump housing middle part is an active chamber, the insulating piezoelectric oscillator is located in the active chamber, its two ends are by the sealing gasket support fixation, be provided with the water intake of two conical bore shapes at the axial middle part of the pump housing, water intake is communicated with active chamber, top at active chamber also is provided with horizontal buffer cavity, the buffer cavity the other end picks out water channel, by intake tunnel, active chamber, buffer cavity and exhalant canal constitute the flow channel of two-chamber, the circular compound piezoelectric vibrator of handling through insulation drives, piezoelectric vibrator will produce flexure vibrations distortion up and down under the excitation of sinusoidal alternating electrical signal, thereby the alternate that the volume that makes two pump chambers increase takes place and reduces, because there is certain difference in flow in fluid when flowing through two circular cone water intakes, finally on macroscopic view, realized continuous suction and the discharge of fluid again at exhalant canal.
Piezoelectric vibrator is an insulation and sealing structure, does not directly contact with water, therefore, can make full use of two sides of piezoelectric vibrator and constitute two active chambers with the pump housing respectively, has improved the working efficiency of piezoelectric pump.
Piezoelectric vibrator is in whole cyclomorphosis process, and the left and right water outlet of dual chamber piezoelectric pump is replacing draining always, and left and right water intake is replacing water inlet always simultaneously.Promptly in vibrational period, twice of twice, draining absorbs water, just in left water intake suction, right water outlet carries out draining, and vice versa, suction is carried out simultaneously with draining, make suction, drainage period shorten one times and simple oscialltor list cavity piezoelectric pump, when piezoelectric vibrator to left and right bending deflection, promptly in vibrational period, absorb water once, draining once.Therefore simple oscialltor dual chamber piezoelectric pump output flow doubles than the output flow of simple oscialltor list cavity piezoelectric pump in theory.
Good effect of the present utility model is: adopt insulating piezoelectric oscillator structure, a piezoelectric vibrator becomes active chamber into two active chambers, two cavitys forked working in a vibrational period, a cavity output is right after another cavity output, makes the output stream body form an output stream, thereby realize continuously low pulsation output, avoid single chamber piezoelectric pump can only half vibrational period work, cause out stream interrupted, impact greatly, not steadily, the serious shortcoming of pulsation output.The utility model is started with from drive part, makes full use of the distortion that piezoelectric vibrator produces, and the number of times that effectively utilizes piezoelectric vibrator to do work in one-period improves Valveless piezoelectric POF, working efficiency, and output flow is tended to be steady.
Description of drawings
Fig. 1 is the utility model structure principle chart.
Embodiment
According to shown in Figure 1, by the pump housing 1, insulating piezoelectric oscillator 5, sealing gasket 6, water intake 4, exhalant canal 2, buffer cavity 3 grades constitute the utility model, wherein, offer active chamber 7 at the middle part of the pump housing 1, in the circular compound insulating piezoelectric oscillator 5 device busy chambeies 7 that special insulation is handled, its two ends are by sealing gasket 6 support fixation, be provided with the left side of two conical bore shapes at the axial middle part of the pump housing 1, right water intake 4, water intake 4 is communicated with active chamber 7, top at active chamber 7 also is provided with a horizontal left side, right buffer cavity 3, buffer cavity 3 another termination left sides, right exhalant canal 2 is drawn by the top of the pump housing 1, by water intake 4, active chamber 7, buffer cavity 3 and exhalant canal 2 constitute the flow channel of two-chamber
Claims (1)
1, a kind of simple oscialltor dual chamber Valveless piezoelectric pump, it is characterized in that: pump housing middle part is active chamber, the insulating piezoelectric oscillator is located in the active chamber, its two ends are by the sealing gasket support fixation, be provided with the water intake of two conical bore shapes at the axial middle part of the pump housing, water intake is communicated with active chamber, also is provided with horizontal buffer cavity on the top of active chamber, the buffer cavity the other end picks out water channel, is made of the flow channel of two-chamber intake tunnel, active chamber, buffer cavity and exhalant canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029248 CN2818843Y (en) | 2005-09-28 | 2005-09-28 | Single-vibrator and double-cavity piezo-electric pump without valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029248 CN2818843Y (en) | 2005-09-28 | 2005-09-28 | Single-vibrator and double-cavity piezo-electric pump without valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818843Y true CN2818843Y (en) | 2006-09-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029248 Expired - Fee Related CN2818843Y (en) | 2005-09-28 | 2005-09-28 | Single-vibrator and double-cavity piezo-electric pump without valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818843Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324227B (en) * | 2007-06-12 | 2011-08-10 | 北京航空航天大学 | High-frequency tetrad composite hydraulic pumps and control method thereof |
| CN104389769A (en) * | 2014-10-11 | 2015-03-04 | 北京联合大学 | Curved guide groove valve-free piezoelectric pump |
| CN105545712A (en) * | 2016-02-29 | 2016-05-04 | 江苏大学 | Shrinkage-pipe synthetic-jet valve-less piezoelectric pump |
| CN107781144A (en) * | 2017-11-03 | 2018-03-09 | 长春工业大学 | A kind of two-chamber simple oscialltor piezoelectric pump |
-
2005
- 2005-09-28 CN CN 200520029248 patent/CN2818843Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324227B (en) * | 2007-06-12 | 2011-08-10 | 北京航空航天大学 | High-frequency tetrad composite hydraulic pumps and control method thereof |
| CN104389769A (en) * | 2014-10-11 | 2015-03-04 | 北京联合大学 | Curved guide groove valve-free piezoelectric pump |
| CN104389769B (en) * | 2014-10-11 | 2016-08-24 | 北京联合大学 | Curved guide groove Valveless piezoelectric pump |
| CN105545712A (en) * | 2016-02-29 | 2016-05-04 | 江苏大学 | Shrinkage-pipe synthetic-jet valve-less piezoelectric pump |
| CN105545712B (en) * | 2016-02-29 | 2017-07-18 | 江苏大学 | Collapsible tube synthesizing jet-flow Valveless piezoelectric pump |
| CN107781144A (en) * | 2017-11-03 | 2018-03-09 | 长春工业大学 | A kind of two-chamber simple oscialltor piezoelectric pump |
| CN107781144B (en) * | 2017-11-03 | 2023-09-08 | 长春工业大学 | Double-cavity single-vibrator piezoelectric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGCHUN INSTITUTE OF TECHNOLOGY Free format text: FORMER OWNER: WU LIPING Effective date: 20061103 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061103 Address after: 130021 No. 3666 Comrade Street, Jilin, Changchun Patentee after: Changchun Engineering College Address before: Wide flat road 130021 in Jilin province Changchun No. 395 Changchun Institute of Technology Patentee before: Wu Liping |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |