CN103104526A - Structure and method of piezoelectric fan for heat radiation - Google Patents
Structure and method of piezoelectric fan for heat radiation Download PDFInfo
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- CN103104526A CN103104526A CN2013100368678A CN201310036867A CN103104526A CN 103104526 A CN103104526 A CN 103104526A CN 2013100368678 A CN2013100368678 A CN 2013100368678A CN 201310036867 A CN201310036867 A CN 201310036867A CN 103104526 A CN103104526 A CN 103104526A
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- piezoelectric
- supporting element
- heat transmission
- swing
- piezoelectric fan
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005855 radiation Effects 0.000 title description 8
- 230000005540 biological transmission Effects 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 14
- 229920001206 natural gum Polymers 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 241000883990 Flabellum Species 0.000 description 2
- 241000886569 Cyprogenia stegaria Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The invention relates to a structure of a piezoelectric fan for heat dissipation and a method thereof, comprising a support part and a piezoelectric actuating component with two single edges fixed on the support part, wherein the piezoelectric actuating component comprises two conductive components with two single edges fixed on two sides of the support part and a piezoelectric component arranged on the conductive components, therefore, when the two piezoelectric actuating components are respectively fixed on two sides of the support part in a single edge fixing mode, an alternating current voltage is applied to the piezoelectric actuating component, and through a U-shaped cavity, the areas of the two piezoelectric actuating components which are not fixed on the support part generate relative opening and closing swing so that the cavity sucks air and then sprays the air. In addition, the invention can also add protective covers at two ends of the supporting piece to protect the electrode layers of the piezoelectric actuating component, so that the electrodes are not exposed, and the advantages of lightness, thinness, shortness, no electromagnetic field generation and energy conservation are achieved.
Description
Technical field
The present invention is for a kind of heat transmission piezoelectric fan is provided, espespecially a kind of without rotating flabellum and rotating the design of electromagnetic motor, have simultaneously light, thin, short and small, non-electromagnetic field produces and economize structure and the method thereof of heat transmission piezoelectric fan of the multinomial advantage of the energy.
Background technique
As shown in accompanying drawing 1 and accompanying drawing 2, for traditional heat-dissipating fan schematic diagram and traditional heat-dissipating fan cross-sectional schematic, traditional heat-dissipating fan 2 generally is the rotation flabellum, rotates electromagnetic motor and forms with the fan shell, as U.S. Pat 7.165.938.B2 and US 2008/0130226A1.General radiation fan 2 general appearances are cuboid, now carrying electronic devices as: mobile computer and I PAD etc. are more and more compact, and the thickness requirement of the radiation fan of central processing unit (CPU) (CPU) is more and more thinner.
Traditional cuboid radiation fan 2 is in the design of thickness, and facing the thickness how serious challenge therefore effectively to reduce radiation fan 2 is the problem that each manufacturer of family faces.
Summary of the invention
Main purpose of the present invention is to provide a kind of structure and method thereof of heat transmission piezoelectric fan, can reduce thickness with the design that adopts the thin type piezoelectric actuator elements, can save the consumption on the energy, and piezoelectric actuator elements is to utilize electric field to activate, therefore can around fan, produce magnetic field and affect the running of other electrical assembly.
In order to achieve the above object, the present invention comprises a supporting element and two monolateral edges are fixed in the piezoelectric actuator elements on these supporting element both sides, wherein, described piezoelectric actuator elements comprises a monolateral conductive component and be fixed on this supporting element and is located at the piezoelectric element on this conductive component.Protect lids and can further be provided with two on above-mentioned mentioned supporting element.
The structure that the present invention is a kind of heat transmission piezoelectric fan, it mainly comprises:
One supporting element;
Two monolateral edges are fixed in the piezoelectric actuator elements on this supporting element, and wherein this piezoelectric actuator elements comprises a monolateral conductive component and be fixed on this supporting element and is located at the piezoelectric element on this conductive component.
Wherein on this supporting element, further be provided with a protection lid, and this protection lid be sheet metal, resin flake or the scraps of paper one of them;
Wherein the swing effective length ratio of this piezoelectric element and this conductive component is
, separately this effective width ratio is
, and swing the effective length optimum ratio, be
, swing the Effective face width optimum ratio
;
It is characterized in that: wherein this supporting element be metal, natural gum, engineering natural gum or pottery one of them;
Wherein this conductive component be metal or the conduction composite one of them.
The structure that the present invention is a kind of heat transmission piezoelectric fan and method thereof, it mainly comprises:
(a) with monolateral edge, fixing mode is fixed on supporting element two piezoelectric actuator elements respectively;
(b) give an alternating voltage on piezoelectric actuator elements, make this piezoelectric actuator elements not be fixed in zone on supporting element and produce relative opening and make jet flow after the cavity air amount and go out with closing up to swing.
Wherein on this supporting element, further be provided with a protection lid, and this protection lid be sheet metal, resin flake or the scraps of paper one of them;
Wherein the swing effective length ratio of this piezoelectric element and this conductive component is
, separately this effective width ratio is
, and swing the effective length optimum ratio, be
, swing the Effective face width optimum ratio
;
Wherein this supporting element is metal, natural gum, engineering natural gum, pottery or composite material;
Wherein this conductive component be metal or the conduction composite one of them.
The invention has the advantages that: when two piezoelectric actuator elements of supporting element both sides when with monolateral edge, fixing mode is fixed on supporting element respectively, give an alternating voltage on piezoelectric actuator elements, therefore via the design of the cavity that takes the shape of the letter U, make this piezoelectric actuator elements not be fixed in zone on supporting element and produce relatively to open and close up to swing and make jet flow after the cavity air amount and go out.In addition, the present invention also is able to install the protection lid additional at the place, both sides of supporting element, and the electrode layer of using the protection piezoelectric actuator elements does not expose, to reach multinomial practical improvement light, thin, short and small, that non-electromagnetic field produces and economize the energy.
The accompanying drawing explanation
Fig. 1 is traditional heat-dissipating fan schematic diagram.
Fig. 2 is traditional heat-dissipating fan cross-sectional schematic.
The schematic perspective view that Fig. 3 is heat transmission piezoelectric fan of the present invention.
The decomposing schematic representation that Fig. 4 is heat transmission piezoelectric fan of the present invention.
The front view that Fig. 5 is heat transmission piezoelectric fan of the present invention.
Fig. 6 is that two of heat transmission piezoelectric fan of the present invention activates the generalized section after assembly dehisces to close up relatively.
The method flow diagram that Fig. 7 is heat transmission piezoelectric fan of the present invention.
Fig. 8 is heat transmission piezoelectric fan actuating assembly exploded view of the present invention.
Fig. 9 is actuating assembly constitutional diagram of the present invention.
Figure 10 is the heat transmission piezoelectric fan schematic perspective view that the present invention has the protection lid.
Figure 11 is the heat transmission piezoelectric fan decomposing schematic representation that the present invention has the protection lid.
Figure 12 is the heat transmission piezoelectric fan front elevational schematic that the present invention has the protection lid.
Figure 13 is the heat transmission piezoelectric fan cross-sectional schematic that the present invention has the protection lid.
Embodiment
To as shown in accompanying drawing 9, be the stereogram of heat transmission piezoelectric fan of the present invention～actuating assembly constitutional diagram as accompanying drawing 3, can know in figure and find out and the present invention includes:
One supporting element 11;
Two monolateral edges are fixed in the piezoelectric actuator elements 12 on these supporting element 11 both sides, and wherein this piezoelectric actuator elements 12 comprises a monolateral conductive component 121 and be fixed on this supporting element 11 and is located at the piezoelectric element 122 on this conductive component 121.
Wherein the swing effective length ratio of actuating assembly 12 is
And Effective face width is
, and swing the effective length optimum ratio, be
, swing the Effective face width optimum ratio
, then this supporting element 11 be metal, natural gum, engineering natural gum, pottery or composite material all can, this conductive component 121 is that metal or conducing composite material all can again.
As shown in accompanying drawing 7 and accompanying drawing 8, for two of heat transmission piezoelectric fan of the present invention activates generalized section and the method flow diagram after assembly dehisces to close up relatively, in figure, can know and find out, the structure of heat transmission piezoelectric fan of the present invention and method thereof, it mainly comprises:
(a) with monolateral edge, fixing mode is fixed on supporting element 11 two piezoelectric actuator elements 12 respectively;
(b) give an alternating voltage on piezoelectric actuator elements 12, make this piezoelectric actuator elements 12 not be fixed in zone on supporting element 11 and produce relative opening and make jet flow after the cavity air amount and go out with closing up to swing.
As accompanying drawing 3 to as shown in accompanying drawing 9, for the schematic perspective view of heat transmission piezoelectric fan of the present invention～actuating assembly constitutional diagram, can know and find out in figure, because conductive component 121 and the means of fixation of supporting element 11 utilize monolateral edge to be fixed, therefore when piezoelectric actuator elements 12 loads alternating voltage, all the other are not fixed in that zone on supporting element 11 can be out of shape and relative opening swings with closure piezoelectric actuator elements 12, ejection after the cavity mouth that air is produced by supporting element 11 and piezoelectric actuator elements 12 sucks, therefore the size of cavity is the principal element that determines structure heat radiation air quantity of the present invention, and suitably design can make the air output of structure of the present invention and noise sound press reach optimal amount, yet, generally speaking construction profile of the present invention is that the assembling demand that is used in conjunction with end can be arbitrary shape, but followingly take outward appearance and describe as cubic body as example, when outward appearance is that cubic body is while being of a size of the thick 3mm of the wide 40mm* of long 40mm*, the cavity exhaust outlet area that it is produced by supporting element 11 and piezoelectric actuator elements 12 is 35mm*1.3mm=45.5mm
2, and be 200Hz 30v Ac from the wire incoming frequency, its air output can reach 1m
3/ more than dividing, being enough to supply with central processing unit (CPU) (CPU) heat radiation uses, its sound press records 30dB at 30 centimeters places of distance, for instance as: conductive component 121 (Lm) is 34mm, and piezoelectric element 122 (Lc) is 18mm, be assembled in the thick 3mm of the wide 40mm* of piezoelectric fan apparent size 40mm*, the effective length that conductive component 121 swings is that Lme is 28mm, and the effective length Lce that piezoelectric element 122 swings is 14mm.14mm (Lce): 28mm (Lme)=0.5 and width are than being 33mm (Wce): 35mm (Wne)=0.95 o'clock; Its consumption of electric power is 30V*7mA=0.21W through actual measurement, via the data of surveying, can have a clear understanding of the radiation fan that the present invention is power saving.
As accompanying drawing 10 to as shown in accompanying drawing 13; for the present invention has the heat transmission piezoelectric fan schematic perspective view～cross-sectional schematic of protection lid; can know and find out in figure; the supporting element 11a that the present invention is mentioned and the composite structure of piezoelectric actuator elements 12a; protection lid 13a also further is set on supporting element 11a; and through the design of protective cover body 13a thus, the practical improvement that can effectively protect the electrode layer of piezoelectric actuator elements 12a not expose.
Claims (10)
1. the structure of a heat transmission piezoelectric fan is characterized in that comprising:
One supporting element;
Two monolateral edges are fixed in the piezoelectric actuator elements on this supporting element, and wherein this piezoelectric actuator elements comprises a monolateral conductive component and be fixed on this supporting element and is located at the piezoelectric element on this conductive component.
2. the structure of heat transmission piezoelectric fan according to claim 1 is characterized in that: wherein on this supporting element, further be provided with a protection lid, and this protection lid be sheet metal, resin flake or the scraps of paper one of them.
3. the structure of heat transmission piezoelectric fan according to claim 1, it is characterized in that: wherein the swing effective length ratio of this piezoelectric element and this conductive component is
, separately this effective width ratio is
, and swing the effective length optimum ratio, be
, swing the Effective face width optimum ratio
.
4. the structure of heat transmission piezoelectric fan according to claim 1 is characterized in that: wherein this supporting element be metal, natural gum, engineering natural gum or pottery one of them.
5. the structure of heat transmission piezoelectric fan according to claim 1 is characterized in that: wherein this conductive component be metal or conduction composite one of them.
6. the structure of a heat transmission piezoelectric fan and method thereof is characterized in that comprising:
(a) with monolateral edge, fixing mode is fixed on supporting element two piezoelectric actuator elements respectively;
(b) give an alternating voltage on piezoelectric actuator elements, make this piezoelectric actuator elements not be fixed in zone on supporting element and produce relative opening and make jet flow after the cavity air amount and go out with closing up to swing.
7. the structure of heat transmission piezoelectric fan according to claim 6 and method thereof is characterized in that: wherein on this supporting element, further be provided with a protection lid, and this protection lid be sheet metal, resin flake or the scraps of paper one of them.
8. the structure of heat transmission piezoelectric fan according to claim 6 and method thereof, it is characterized in that: wherein the swing effective length ratio of this piezoelectric element and this conductive component is
, separately this effective width ratio is
, and swing the effective length optimum ratio, be
, swing the Effective face width optimum ratio
.
9. the structure of heat transmission piezoelectric fan according to claim 6 and method thereof is characterized in that: wherein this supporting element is metal, natural gum, engineering natural gum, pottery or composite material.
10. the structure of heat transmission piezoelectric fan according to claim 6 and method thereof is characterized in that: wherein this conductive component be metal or conduction composite one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100368678A CN103104526A (en) | 2013-01-31 | 2013-01-31 | Structure and method of piezoelectric fan for heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100368678A CN103104526A (en) | 2013-01-31 | 2013-01-31 | Structure and method of piezoelectric fan for heat radiation |
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| Publication Number | Publication Date |
|---|---|
| CN103104526A true CN103104526A (en) | 2013-05-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100368678A Pending CN103104526A (en) | 2013-01-31 | 2013-01-31 | Structure and method of piezoelectric fan for heat radiation |
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| CN (1) | CN103104526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574637A (en) * | 2014-07-30 | 2017-04-19 | 株式会社R-Flow | Piezo fan |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6255500A (en) * | 1985-09-04 | 1987-03-11 | Murata Mfg Co Ltd | Piezo-electric fan |
| US4780062A (en) * | 1985-10-09 | 1988-10-25 | Murata Manufacturing Co., Ltd. | Piezoelectric fan |
| CN2075262U (en) * | 1990-10-26 | 1991-04-17 | 中国矿业大学北京研究生部 | Mini-fan made of piezoceramics |
| CN1265777A (en) * | 1997-05-30 | 2000-09-06 | Cts公司 | Low-profile axial-flow single-blade piezoelectric fan |
| WO2007050533A2 (en) * | 2005-10-24 | 2007-05-03 | Piezotech, Llc | Piezoelectric fan |
| RO126588A0 (en) * | 2010-09-16 | 2011-08-30 | Institutul Naţional De Cercetare-Dezvoltare Pentru Fizica Materialelor | Highly performant miniature fan made of pvdf |
| CN103140686A (en) * | 2010-08-25 | 2013-06-05 | 英孚伦特有限公司 | Cantilever fan |
| CN203189284U (en) * | 2013-02-01 | 2013-09-11 | 新生源企业有限公司 | Structure of Piezoelectric Fan for Heat Dissipation |
-
2013
- 2013-01-31 CN CN2013100368678A patent/CN103104526A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6255500A (en) * | 1985-09-04 | 1987-03-11 | Murata Mfg Co Ltd | Piezo-electric fan |
| US4780062A (en) * | 1985-10-09 | 1988-10-25 | Murata Manufacturing Co., Ltd. | Piezoelectric fan |
| CN2075262U (en) * | 1990-10-26 | 1991-04-17 | 中国矿业大学北京研究生部 | Mini-fan made of piezoceramics |
| CN1265777A (en) * | 1997-05-30 | 2000-09-06 | Cts公司 | Low-profile axial-flow single-blade piezoelectric fan |
| WO2007050533A2 (en) * | 2005-10-24 | 2007-05-03 | Piezotech, Llc | Piezoelectric fan |
| CN103140686A (en) * | 2010-08-25 | 2013-06-05 | 英孚伦特有限公司 | Cantilever fan |
| RO126588A0 (en) * | 2010-09-16 | 2011-08-30 | Institutul Naţional De Cercetare-Dezvoltare Pentru Fizica Materialelor | Highly performant miniature fan made of pvdf |
| CN203189284U (en) * | 2013-02-01 | 2013-09-11 | 新生源企业有限公司 | Structure of Piezoelectric Fan for Heat Dissipation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574637A (en) * | 2014-07-30 | 2017-04-19 | 株式会社R-Flow | Piezo fan |
| CN106574637B (en) * | 2014-07-30 | 2019-08-30 | 株式会社R-Flow | Piezoelectric fan |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |