CN102734139A - Piezoelectric pump and piezoelectric ceramics piece protection process - Google Patents
Piezoelectric pump and piezoelectric ceramics piece protection process Download PDFInfo
- Publication number
- CN102734139A CN102734139A CN2011100916508A CN201110091650A CN102734139A CN 102734139 A CN102734139 A CN 102734139A CN 2011100916508 A CN2011100916508 A CN 2011100916508A CN 201110091650 A CN201110091650 A CN 201110091650A CN 102734139 A CN102734139 A CN 102734139A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- transducing sheet
- piezoelectric pump
- seal ring
- transduction piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000002463 transducing effect Effects 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000013459 approach Methods 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000026683 transduction Effects 0.000 abstract 6
- 238000010361 transduction Methods 0.000 abstract 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000001153 fluoro group Chemical class F* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2047—Membrane type
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/88—Mounts; Supports; Enclosures; Casings
- H10N30/883—Additional insulation means preventing electrical, physical or chemical damage, e.g. protective coatings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a piezoelectric pump and a piezoelectric ceramics piece protection process. The piezoelectric pump is composed of parts such as an upper shell, a transduction piece, a valve plate, a seal ring and a lower shell, and a water inlet of the piezoelectric pump is arranged at a central position or close to the centre of the transduction piece; the seal ring is arranged at a maximal periphery approaching to the transduction piece, and a water outlet is positioned at the maximal periphery or close to the maximal periphery of the transduction piece; and a layer of thin insulation protection film is plated on the entire electric conduction surface of the transduction piece, leakage failure of the transduction piece and water burning of a ceramic surface are effectively prevented, the process is simple, and the cost is low.
Description
Technical field
The present invention relates to micropump, particularly, relating to a kind of is the piezoelectric pump of energy conversion device with the piezoelectric ceramic.
Background technique
The piezoelectric pump patent is many, really can industrialization but seldom, the performance index everyway is still less pretty good simultaneously.The piezoelectric pump field also has much needs the difficulties that break through, as complex manufacturing, the sticking water of piezoelectric ceramic be prone to burn, pressure flow is on the low side or the like.
Therefore, the piezoelectric pump field also has the many spaces that can improve lifting.
Summary of the invention
Technical problem to be solved by this invention is, provides that a kind of structural manufacturing process is simple, flow enhancement, the safe and reliable piezoelectric pump of piezoelectric ceramic (transducing sheet).
Technological scheme of the present invention is following: a kind of piezoelectric pump, form by upper casing, transducing sheet, valve block, seal ring and lower casing.After assembling aforementioned part, last lower casing connects with screw or ultrasonic welding is integral.Seal ring is installed near transducing sheet maximum outside diameter place, helps the vibration amplitude maximization of transducing sheet, thus the output flow of elevator pump; The water intake of pump is made in transducing sheet center or near the center; The fluid compression ratio is maximum here, and water outlet is made in transducing sheet maximum outer warp place or near maximum outer warp place, fluid compression ratio herein is minimum; Fluid compression ratio biggest place advances, compression ratio minimum place goes out; Its speed and variation in pressure are little by little, can reduce because of break-in homenergic loss suddenly, help improving the energy conversion efficiency of pump.The ceramic plane "on" position of piezoelectric ceramic (transducing sheet) can not get wet especially, and getting wet, it is black impaired just to burn; The piezoelectric constant plate substrate is the metallic conduction material, and traditional piezoelectric ceramic surface is not done surface insulation and handled, and water contacting is prone to cause casualty accident during energising.For this reason, we are coated with the very thin uniform coatings of last layer to the exposed conductive surface of piezoelectric ceramic with sub zero treatment technological methodes such as spraying, printings, have solved piezoelectric ceramic protection and safety problem simply and effectively.
Description of drawings
Fig. 1 is the embodiment of piezoelectric pump among the present invention;
Fig. 2 is a piezoelectric ceramic protection process implementing example among the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention will be described in more detail.
Fig. 1 is the embodiment of piezoelectric pump among the present invention; Form to become by upper casing (1), transducing sheet (2), valve block (3), seal ring (4) and lower casing (5); After assembling aforementioned part, upper casing (1) is connected with screw with lower casing (5) or ultrasonic welding is integral complete piezoelectric pump of formation.Seal ring (4) is installed in transducing sheet (2) near largest circumference place or largest circumference place, and the fulcrum that is equivalent to lever leans on toward the largest circumference place, helps effectively utilizing the peak swing of transducing sheet (2).
Fig. 2 is a piezoelectric ceramic protection process implementing example among the present invention;: the solder joint (202) on the transducing sheet (2), pottery (203) and metal substrate (204) surface all apply the very thin insulating protective film of one deck; This protective film is to get with normal temperature surface processing method, coatings spraying or printing, and is thin and even, simple to operate, with low cost.02114467.2 patent is taked to paste the withstand voltage insulation film of polyester fluorine class on metal substrate (204) surface; Pottery (203) surperficial embedding 1-3 millimeter electrically insulating silicone rubber is handled the protection and the safety problem of piezoelectric ceramic; At first be paste the withstand voltage insulation film of polyester fluorine class can not mechanization, cost is high, yield poorly; Next is that the raw materials consumption of embedding 1-3 millimeter electrically insulating silicone rubber is many, embedding is long curing time, is expensive, low yield equally, and this technological method is difficult to industrialization.
Claims (6)
1. piezoelectric pump, it is characterized in that: comprise upper casing (1), transducing sheet (2), valve block (3), seal ring (4) and lower casing (5), seal ring (4) is installed in transducing sheet (2) near largest circumference place or largest circumference place;
2. piezoelectric ceramic protection technology; It is characterized in that: the solder joint (202) on the transducing sheet (2), pottery (203) and metal substrate (204) surface be the very thin insulating protective films of coating one decks all, and leak current fault and pottery (203) surface that can prevent transducing sheet (2) effectively get wet and burn.
3. piezoelectric pump according to claim 1 is characterized in that: water intake (102) is in the position, the center of circle of transducing sheet (2) or approaches position, the center of circle;
4. piezoelectric pump according to claim 1 is characterized in that: water outlet (101) is in the largest circumference place of transducing sheet (2) or approaches the largest circumference place;
5. piezoelectric ceramic protection technology according to claim 2 is characterized in that: insulating protective film is that thickness is lower than 0.15 millimeter uniform film;
6. piezoelectric ceramic protection technology according to claim 2 is characterized in that: insulating protective film is with being made with technological methodes such as spraying, printings under the processing temperature that is lower than 100 degree.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100916508A CN102734139A (en) | 2011-04-12 | 2011-04-12 | Piezoelectric pump and piezoelectric ceramics piece protection process |
| PCT/CN2012/073872 WO2012139502A1 (en) | 2011-04-12 | 2012-04-12 | Piezoelectric pump and method of protecting piezoelectric ceramic piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100916508A CN102734139A (en) | 2011-04-12 | 2011-04-12 | Piezoelectric pump and piezoelectric ceramics piece protection process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734139A true CN102734139A (en) | 2012-10-17 |
Family
ID=46990243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100916508A Pending CN102734139A (en) | 2011-04-12 | 2011-04-12 | Piezoelectric pump and piezoelectric ceramics piece protection process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102734139A (en) |
| WO (1) | WO2012139502A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355775A (en) * | 2015-11-27 | 2016-02-24 | 国医华科（苏州）医疗科技发展有限公司 | Piezoelectric ceramic energy transducer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158454Y (en) * | 1993-03-27 | 1994-03-09 | 胡忠民 | Super-miniature water spray pump |
| CN1343842A (en) * | 2001-08-31 | 2002-04-10 | 胡军 | Multi-purpose superminiature electronic pump |
| CN1369639A (en) * | 2002-03-14 | 2002-09-18 | 胡军 | Miniaturized hydraulic electronic pump |
| CN1369638A (en) * | 2002-03-14 | 2002-09-18 | 胡军 | Miniatrized hydraulic electronic pump and its manufacture |
| CN2528960Y (en) * | 2001-08-31 | 2003-01-01 | 胡军 | Multipurpose ultrasmicro-electronic pump |
| CN2534389Y (en) * | 2002-03-14 | 2003-02-05 | 胡军 | Ultramicro hydraulic electronic pump |
| US20090127113A1 (en) * | 2007-11-15 | 2009-05-21 | Chien-Hsing Chen | Microfluidic detector and manufacturing method |
| CN101463809A (en) * | 2009-01-09 | 2009-06-24 | 胡军 | Vertical self-absorption type piezoelectric ceramic pump |
| CN101634292A (en) * | 2009-08-10 | 2010-01-27 | 胡军 | Piezoelectric ceramic pump used for electronic product and CPU cooling system |
| US20110061526A1 (en) * | 2007-10-22 | 2011-03-17 | Martin Wackerle | Diaphragm Pump |
-
2011
- 2011-04-12 CN CN2011100916508A patent/CN102734139A/en active Pending
-
2012
- 2012-04-12 WO PCT/CN2012/073872 patent/WO2012139502A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158454Y (en) * | 1993-03-27 | 1994-03-09 | 胡忠民 | Super-miniature water spray pump |
| CN1343842A (en) * | 2001-08-31 | 2002-04-10 | 胡军 | Multi-purpose superminiature electronic pump |
| CN2528960Y (en) * | 2001-08-31 | 2003-01-01 | 胡军 | Multipurpose ultrasmicro-electronic pump |
| CN1369639A (en) * | 2002-03-14 | 2002-09-18 | 胡军 | Miniaturized hydraulic electronic pump |
| CN1369638A (en) * | 2002-03-14 | 2002-09-18 | 胡军 | Miniatrized hydraulic electronic pump and its manufacture |
| CN2534389Y (en) * | 2002-03-14 | 2003-02-05 | 胡军 | Ultramicro hydraulic electronic pump |
| US20110061526A1 (en) * | 2007-10-22 | 2011-03-17 | Martin Wackerle | Diaphragm Pump |
| US20090127113A1 (en) * | 2007-11-15 | 2009-05-21 | Chien-Hsing Chen | Microfluidic detector and manufacturing method |
| CN101463809A (en) * | 2009-01-09 | 2009-06-24 | 胡军 | Vertical self-absorption type piezoelectric ceramic pump |
| CN101634292A (en) * | 2009-08-10 | 2010-01-27 | 胡军 | Piezoelectric ceramic pump used for electronic product and CPU cooling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355775A (en) * | 2015-11-27 | 2016-02-24 | 国医华科（苏州）医疗科技发展有限公司 | Piezoelectric ceramic energy transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012139502A1 (en) | 2012-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CAO HUAYAN Effective date: 20140311 Owner name: SHENZHEN HUAJIAN PUMP INDUSTRY TECHNOLOGY CO., LTD Free format text: FORMER OWNER: LIN SHUYUAN Effective date: 20140311 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140311 Address after: Five road 516211 in Guangdong province Huizhou city Huiyang District People's bamboo garden two building 406 room Applicant after: Shenzhen Hua Yi Pump Technology Co., Ltd. Applicant after: Cao Huayan Address before: Five road 516211 in Guangdong province Huizhou city Huiyang District People's bamboo garden two building 406 room Applicant before: Lin Shuyuan |
|
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |