CN200989293Y - Micro water spraying propulsion pump - Google Patents
Micro water spraying propulsion pump Download PDFInfo
- Publication number
- CN200989293Y CN200989293Y CN 200620029477 CN200620029477U CN200989293Y CN 200989293 Y CN200989293 Y CN 200989293Y CN 200620029477 CN200620029477 CN 200620029477 CN 200620029477 U CN200620029477 U CN 200620029477U CN 200989293 Y CN200989293 Y CN 200989293Y
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Abstract
The utility model relates to a micro-type propelling pump applicable to the submersible or water-surface micro-type watercraft, in particular suitable to the special field seriously exposed to the electromagnetic interference. The utility model is designed to overcome the shortcoming that the prior propelling pump is difficult to realize the miniaturization and the defect that the traditional piezoelectric pump has a small flow capacity and a low flower speed. The concrete technical scheme is that the propelling pump consists of a pump body, a pump cavity and a piezoelectric vibrator; the piezoelectric vibrator (4) is a drive element and positioned in the cavity body supported by an elastic element and formed between the pump body(9) and a seal cover(8); the pump body (9) is provided with an inlet interval channel and an outlet interval channel; the valve cavity axial line corresponding to the inlet interval channel and the valve cavity axial line corresponding to the outlet interval channel are at the same plane and perpendicular to each other; a rubber globe valve is used as an inlet valve at the inlet; the outlet is a spout(8), the spout (8) is not arranged with a valve and constantly communicated with the outside and the cavity formed by the pump cavity, the valve cavity and the spout is an unenclosed cavity.
Description
Technical field
The utility model is to be applied under water or the advancing means of the miniature aircraft of the water surface, is particularly suitable for the special driving field that is subjected to electromagnetic interference serious.
Background technique
Hydraulic jet propulsion is to utilize the reaction force of boost pump ejection current as power; aspect manoeuvring performance, hydraulic jet propulsion have running noises low, be fit to shallow-water navigation, advantage such as the resistance of appendage is little, drive line is simple, protective value is good and the variable working condition scope is wide.It can change direction of propulsion by the direction that changes nozzle, and the cooperation by steering gear guides the current contra-injection to slow down and reversing realizing.At present, hydraulic jet propulsion both domestic and external generally all adopts axial-flow pump or mixed flow pump, and its efficient has reached 85%～90%, but volume is bigger, limited the microminiaturization of submarine navigation device, as wanted that bigger breakthrough is arranged on size and performance, must a kind of novel miniature hydraulic jet propulsion of development.
Common piezoelectric pump is a kind of microminiature fluid delivery system that utilizes the inverse piezoelectric effect principle to make.So-called inverse piezoelectric effect is exactly when adding an electric field on piezoelectrics, crystal not only will produce polarization, also will produce strain and stress, and this phenomenon by electric field generation strain or stress is called inverse piezoelectric effect.If give the excitation electrical field of alternation on the piezoelectric disc oscillator, then radially elongation or contraction will appear in piezoelectric vibrator, and double vibrations promptly takes place.By the fusion of piezoelectric pump technology and hydraulic jet propulsion technology, develop a kind of novel miniature hydraulic jet propulsion pump---the anti-jet-pump that pushes away of piezoelectricity.
Piezoelectric pump generally is divided into valveless and valve two big classes is arranged.The output flow of existing Valveless piezoelectric pump is less, is not suitable for boost pump and uses.It is the variation that distortion realizes pump housing content cavity volume that radially bends that utilizes piezoelectric vibrator that valve piezoelectric pump is arranged, thereby changes internal pressure, makes valve block be forced to open or close.Fig. 4 has the structural representation of valve piezoelectric pump for tradition.Wherein 9 is the pump housing, and 4 is piezoelectric vibrator, and 3 is pump chamber, and 15,16 are respectively inlet valve and outlet valve.Its working principle is: form sealed cavity by the pump housing 1, piezoelectric vibrator 4, inlet valve 15 and outlet valve 16, piezoelectric vibrator 4 is applied alternate electrical signal, piezoelectric vibrator 4 produces the reciprocal distortion that radially bends, pressure in the sealed cavity is changed, and in suction process, pressure reduces in the pump, the pump pressure outside is greater than the pump internal pressure, under the effect of external and internal pressure difference, inlet valve 15 is opened, outlet valve 16 cuts out.In the process of spuing, pressure increases in the pump, and the pump internal pressure under the effect of external and internal pressure difference, closes inlet valve 15 greater than the pump pressure outside, and outlet valve 16 is opened.Under piezoelectric vibrator 4 periodic variations, make inlet/ outlet valve 15,16 produce periodic cycle and open and close, pump housing fluid forms one-way flow.The influence of flow area and the pump valve hysteresis of being entered the mouth, in each cycle, liquid can not be full of the pump content cavity, influences the output flow of pump.And owing to the existence of outlet valve, improved the flow resistance that of fluid greatly, the discharge velocity of fluid and flow all are subjected to very large restriction.And the most important thing is to require big flow to spray and high discharge velocity for boost pump, this point tradition has valve piezoelectric pump just can't satisfy.In addition, tradition has the import and export mix layout of valve piezoelectric pump also to be not suitable for as boost pump.
Summary of the invention
The purpose of this utility model is: be difficult to realize that in order to overcome existing boost pump microminiaturized not enough and tradition has the shortcoming that the valve piezoelectric pump flow is less, discharge velocity is lower, provide a kind of miniature water jet propulsion pump of fusion piezoelectric pump technology and hydraulic jet propulsion technology of novelty, i.e. the anti-jet-pump that pushes away of piezoelectricity.
Above-mentioned purpose of the present utility model is achieved in that accompanying drawings is as follows:
A kind of miniature water jet propulsion pump is made up of the pump housing, pump chamber, piezoelectric vibrator, with piezoelectric vibrator 4 is driving element, piezoelectric vibrator 4 is supported in the cavity that constitutes between the pump housing 9 and the capping 6 by its peripheral elastic element, the pump housing 9 is provided with entrance channel and outlet flow, the valve pocket axis of entrance channel correspondence is in same plane and vertical mutually with the outlet flow axis, the ingress adopts the rubber stop valve as inlet valve, outlet promptly is a spout 8, spout 8 places do not establish valve, with extraneous normal open, the pump inner chamber body of being made up of pump chamber, valve pocket and spout is in not closed state.
Said entrance channel adopts two, one is inlet A13, another is inlet B11, the valve pocket B7 parallel axes that the valve pocket A5 axis of inlet A13 correspondence is corresponding with the B11 that enters the mouth and place pump chamber 3 under, the axis of the axis of two valve pockets and spout 8 is in same plane, and all perpendicular with the spout axis.
The valve pocket A5 of said inlet A13 correspondence presents stepped arrangement with the corresponding valve pocket B7 of B11 that enters the mouth, and one of them highly bigger valve pocket B7 directly communicates with spout 8, and the coupled valve pocket base plane of outlet flow internal surface is tangent.
Said rubber stop valve is whole open valve, and its spool is fixed, peripheral full open, and longitudinal section is a umbrella.
The beneficial effects of the utility model are, the compact structure piezoelectric element is that prime mover is that working machine, per unit volume output jet flow amount is big, energy density is high again, no electromagnetic interference, controllability are good, can realize than characteristics such as propelling forces greatly, can be well integrated with submarine navigation device.And can realize the multivariant simple and easy control of submarine navigation device by the combination of a plurality of pumps, can be applicable to the special dimension that is subjected to electromagnetic interference serious.
Description of drawings
Fig. 1 is structure master's sectional view of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 2;
Fig. 3 is that the B of Fig. 2 is to figure;
Fig. 4 is structure master's sectional view that tradition has valve piezoelectric pump.
Among the figure: 1. seal ring, 2. upper support seal ring, 3. pump chamber, 4. piezoelectric vibrator, 5. valve pocket A, 6. capping, 7. valve pocket B, 8. spout, the 9. pump housing, 10. rubber stop valve B, 11. inlet B, 12. rubber stop valve A, 13. inlet A, 14. lower support seal rings, 15. is inlet valve, 16 outlet valves.
Embodiment
Below in conjunction with the accompanying drawing illustrated embodiment particular content of the present utility model and working principle thereof are further specified.
Miniature water jet propulsion pump---the anti-jet-pump that pushes away of piezoelectricity is to utilize the inverse piezoelectric effect principle to make.The pump inner chamber body of this boost pump is not closed state, directly is communicated with extraneous by spout 8.Its working principle is: piezoelectric vibrator 4 is applied alternate electrical signal, and piezoelectric vibrator 4 produces the reciprocal distortion that radially bends.Though the boost pump cavity is closed state not, because boost pump is to place water to work, when water was full of whole cavity, cavity just was equivalent to constitute a closed state, and the variation of any pressure can cause the unlatching of valve block or closes in the chamber.Therefore, piezoelectric vibrator 4 is applied alternate electrical signal, piezoelectric vibrator 4 produces the reciprocal distortion that radially bends, and the pressure in the sealed cavity is changed.In suction process, pressure reduces in the pump, and the pump pressure outside under the effect of external and internal pressure difference, opens inlet valve greater than the pump internal pressure, and fluid is simultaneously in spout and inlet both direction inflow pump.In the process of spuing, pressure increases in the pump, and the pump internal pressure under the effect of external and internal pressure difference, closes inlet valve greater than the pump pressure outside, and fluid is that spout is discharged the pump housing from single outlet only.Under the periodic effect of piezoelectric vibrator, fluid forms the single way jet motion.
Boost pump is made up of capping 6, the pump housing 9, piezoelectric vibrator 4, seal ring 1 and rubber stop valve A, B five parts.The peripheral upper and lower surface of piezoelectric vibrator 4 is upper support seal ring 2 and lower support seal ring 14 by resilient support members, can effectively improve the variable quantity of pump housing volume like this.Owing to will use under water,, increase a seal ring 1 again in the periphery of piezoelectric vibrator 4 in order to improve the sealability of system.These seal rings all are placed in the groove of the pump housing 9 and capping 6.The pump housing 9 is made of pump chamber 3, valve pocket A5 and valve pocket B7, outlet flow spout 8, inlet A13 and inlet B11 four parts, wherein valve pocket and inlet all are two, two valve pockets are parallel, place under the pump chamber 3, and two valve pocket A5, the axis of B7 and the axis of spout 8 be in same plane, and all perpendicular with the spout axis; Valve pocket is same axis arranged over against inlet.The valve pocket A5 volume far away from spout 8 is little, can just place a rubber stop valve A12, and the valve body after valve pocket A5 highly equals to install is the thickness height of valve block; The valve pocket volume that links to each other with spout is big, and its height can be determined with reference to following formula:
h
g+Φ
j+h
v-h
p+2≥H≥h
g+Φ
j+h
v-h
p+1
H, h in the formula
g, Φ
j, h
vAnd h
pBe respectively valve pocket B7 height, groove depth, spout 8 diameters, valve body 9 height and pump chamber 3 height.
Between inlet and the valve pocket rubber stop valve being arranged respectively is inlet valve: rubber stop valve A12 and rubber stop valve B10, outlet is spout 8 place's valveless, and the susceptor surface of outlet flow internal surface and coupled valve pocket B7 is tangent, and layout can effectively improve the discharge velocity and the jet flow amount of outlet like this.And two entrance structures minimize pump housing volume, can further improve its suction capacity and jet flow amount.
In Fig. 2, piezoelectric vibrator 4 supports by upper support seal ring 2 and lower support seal ring 14, and place pump chamber 3 directly over.Capping 6 has annular groove, is used to inlay upper support seal ring 2 and seal ring 1.
The pump housing 9 is made of pump chamber 3, valve pocket A5, valve pocket B7, inlet A13, inlet B11 and spout 8 respectively.
Inlet A13, inlet B11 are respectively over against valve pocket A5, valve pocket B7, and their shaft axis is perpendicular with the shaft axis of spout 8 respectively, and are in the same plane.Valve pocket A5 and valve pocket B7 are stepped arrangement, and valve pocket B7 links to each other with spout 8.Rubber stop valve A12 and rubber stop valve B10 are inlet valve, be separately fixed at the inlet A13 and the inlet B11 directly over, the valve block periphery just contacts with the valve pocket base.Outlet is that spout 8 places do not have valve block, can effectively reduce the spout resistance, improves jet performance.Equally, be provided with groove in the pump housing, be used to inlay lower support seal ring 14 and seal ring 1.
Claims (4)
1, a kind of miniature water jet propulsion pump is by the pump housing, pump chamber, piezoelectric vibrator is formed, it is characterized in that with piezoelectric vibrator (4) be driving element, piezoelectric vibrator (4) is supported in the cavity that constitutes between the pump housing (9) and the capping (6) by its peripheral elastic element, the pump housing (9) is provided with entrance channel and outlet flow, the valve pocket axis of entrance channel correspondence is in same plane and vertical mutually with the outlet flow axis, the ingress adopts the rubber stop valve as inlet valve, outlet promptly is spout (8), spout (8) locates not establish valve, with extraneous normal open, by pump chamber, the pump inner chamber body that valve pocket and spout are formed is sealed cavity not.
2, miniature water jet propulsion pump according to claim 1, it is characterized in that said entrance channel adopts two, one is inlet A (13), another is inlet B (11), valve pocket B (7) parallel axes that valve pocket A (5) axis that inlet A (13) is corresponding is corresponding with the B (11) that enters the mouth and place pump chamber (3) under, the axis of the axis of two valve pockets and spout (8) is in same plane, and all perpendicular with the spout axis.
3, miniature water jet propulsion pump according to claim 1 and 2, it is characterized in that the corresponding valve pocket A (5) of said inlet A (13) the valve pocket B (7) corresponding with inlet B (11) presents stepped arrangement, one of them highly bigger valve pocket B (7) directly communicates with spout (8), and the coupled valve pocket base plane of outlet flow internal surface is tangent.
4, miniature water jet propulsion pump according to claim 1 is characterized in that said rubber stop valve is whole open valve, and its spool is fixed, peripheral full open, and longitudinal section is a umbrella.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620029477 CN200989293Y (en) | 2006-10-19 | 2006-10-19 | Micro water spraying propulsion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620029477 CN200989293Y (en) | 2006-10-19 | 2006-10-19 | Micro water spraying propulsion pump |
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|---|---|
| CN200989293Y true CN200989293Y (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620029477 Expired - Fee Related CN200989293Y (en) | 2006-10-19 | 2006-10-19 | Micro water spraying propulsion pump |
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| CN (1) | CN200989293Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986787A (en) * | 2008-03-14 | 2011-03-16 | 技术合伙公司 | Pump |
| CN102374158A (en) * | 2011-06-21 | 2012-03-14 | 浙江师范大学 | Self-sensing piezoelectric diaphragm pump |
| CN102459900A (en) * | 2009-06-03 | 2012-05-16 | 技术合伙公司 | Fluid disc pump |
| CN102734140A (en) * | 2011-04-12 | 2012-10-17 | 林淑媛 | Piezoelectric pump and matched pipe thereof |
| CN103032297A (en) * | 2012-12-06 | 2013-04-10 | 浙江师范大学 | Piezoelectric pump based on disk type sensor valve |
| CN104533762A (en) * | 2014-12-17 | 2015-04-22 | 西安交通大学 | Piezoelectric membrane pump and manufacturing method thereof |
| CN104906800A (en) * | 2015-06-30 | 2015-09-16 | 陕西师范大学 | Piezoelectric water-jet propulsion system and toy boat equipped therewith |
| CN106523332A (en) * | 2016-11-16 | 2017-03-22 | 林永群 | Vibration source wafer of micro pump and micro pump |
| CN107356471A (en) * | 2017-08-15 | 2017-11-17 | 塔里木大学 | A kind of and the supporting simple low temperature intelligent temperature control device of direct shear apparatus and method |
| CN113772053A (en) * | 2021-09-01 | 2021-12-10 | 哈尔滨工业大学 | Multi-degree-of-freedom underwater piezoelectric robot with cross structure |
| CN114228966A (en) * | 2021-12-15 | 2022-03-25 | 杭州电子科技大学 | Piezoelectric pulse impeller and underwater robot of high mass flow |
| CN115318477A (en) * | 2022-08-25 | 2022-11-11 | 一汽奔腾轿车有限公司 | Hand-held electric water spraying device for defrosting test of whole vehicle |
-
2006
- 2006-10-19 CN CN 200620029477 patent/CN200989293Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986787A (en) * | 2008-03-14 | 2011-03-16 | 技术合伙公司 | Pump |
| CN102459900A (en) * | 2009-06-03 | 2012-05-16 | 技术合伙公司 | Fluid disc pump |
| CN102734140B (en) * | 2011-04-12 | 2016-03-09 | 深圳市华简泵业科技有限公司 | Piezoelectric pump and its pipe arrangement |
| CN102734140A (en) * | 2011-04-12 | 2012-10-17 | 林淑媛 | Piezoelectric pump and matched pipe thereof |
| WO2012139503A1 (en) * | 2011-04-12 | 2012-10-18 | Lin Shuyuan | Piezoelectric pump and piping thereof |
| CN102374158A (en) * | 2011-06-21 | 2012-03-14 | 浙江师范大学 | Self-sensing piezoelectric diaphragm pump |
| CN103032297A (en) * | 2012-12-06 | 2013-04-10 | 浙江师范大学 | Piezoelectric pump based on disk type sensor valve |
| CN103032297B (en) * | 2012-12-06 | 2015-05-13 | 浙江师范大学 | Piezoelectric pump based on disk type sensor valve |
| CN104533762A (en) * | 2014-12-17 | 2015-04-22 | 西安交通大学 | Piezoelectric membrane pump and manufacturing method thereof |
| CN104906800A (en) * | 2015-06-30 | 2015-09-16 | 陕西师范大学 | Piezoelectric water-jet propulsion system and toy boat equipped therewith |
| CN104906800B (en) * | 2015-06-30 | 2017-05-17 | 陕西师范大学 | Piezoelectric water-jet propulsion system and toy boat equipped therewith |
| CN106523332A (en) * | 2016-11-16 | 2017-03-22 | 林永群 | Vibration source wafer of micro pump and micro pump |
| CN107356471A (en) * | 2017-08-15 | 2017-11-17 | 塔里木大学 | A kind of and the supporting simple low temperature intelligent temperature control device of direct shear apparatus and method |
| CN113772053A (en) * | 2021-09-01 | 2021-12-10 | 哈尔滨工业大学 | Multi-degree-of-freedom underwater piezoelectric robot with cross structure |
| CN114228966A (en) * | 2021-12-15 | 2022-03-25 | 杭州电子科技大学 | Piezoelectric pulse impeller and underwater robot of high mass flow |
| CN114228966B (en) * | 2021-12-15 | 2022-10-28 | 杭州电子科技大学 | Piezoelectric pulse impeller with high mass flow and underwater robot |
| CN115318477A (en) * | 2022-08-25 | 2022-11-11 | 一汽奔腾轿车有限公司 | Hand-held electric water spraying device for defrosting test of whole vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |