CN203939730U - A kind of two oscillator driving type piezoelectric actuator blower fan - Google Patents
A kind of two oscillator driving type piezoelectric actuator blower fan Download PDFInfo
- Publication number
- CN203939730U CN203939730U CN201420399114.3U CN201420399114U CN203939730U CN 203939730 U CN203939730 U CN 203939730U CN 201420399114 U CN201420399114 U CN 201420399114U CN 203939730 U CN203939730 U CN 203939730U
- Authority
- CN
- China
- Prior art keywords
- piezoelectric vibrator
- piezoelectric
- pump housing
- mounting groove
- oscillator
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a kind of two oscillator driving type piezoelectric actuator blower fan, by the pump housing, the first piezoelectric vibrator, the second piezoelectric vibrator and end cap form, two piezoelectric vibrators and the pump housing be common forms a cavity, the volume of described cavity occurs back and forth to change with piezoelectric vibrator displacement, when work, the deformation direction of two piezoelectric vibrators is simultaneously outside or inside, drive the oscillator center hole of gas from the second piezoelectric vibrator flow into or flow out, flow passage structure effect with end cap, form the directed fluid driving force of gas from flow-out hole output, the cavity volume variable quantity in each cycle is obviously greater than traditional simple oscialltor piezoelectricity blower fan, can improve the output capability of piezoelectricity blower fan.
Description
Technical field
The invention belongs to fluid transportation art, be specifically related to a kind of two oscillator driving type piezoelectric actuator blower fan.
Background technique
Piezoelectricity blower fan be a kind of by piezoelectric vibrator the fluid drive apparatus as power original paper, its function is for providing the gas of certain flow in axial outlet port, can be used for the aspects such as active cooling in instrument and apparatus, detection facility and mechano-electronic field, gas conveying, pneumatic drive.Have be simple in structurely convenient to produce in enormous quantities, volume urine in microminiaturized, be convenient to Digital Control and the advantage such as the life-span is long.The power source of piezoelectricity blower fan is in the past generally a slice piezoelectric vibrator, and because the distortion of piezoelectric vibrator is less, General Central maximum displacement is all less than 20 microns, therefore the output capability of blower fan a little less than, limited the application of piezoelectricity blower fan in every field.
Summary of the invention
In order to improve the output capability of piezoelectricity blower fan, thereby expand using scope and the application of piezoelectricity blower fan, a kind of pair of oscillator driving type piezoelectric actuator blower fan proposed, formed by the pump housing, the first piezoelectric vibrator, the second piezoelectric vibrator and end cap, two piezoelectric vibrators and the pump housing be common forms a cavity, the volume of described cavity occurs back and forth to change with piezoelectric vibrator displacement, when work, the deformation direction of two piezoelectric vibrators is simultaneously outside or inside, the cavity volume variable quantity in each cycle is obviously greater than traditional simple oscialltor piezoelectricity blower fan, can improve the output capability of piezoelectricity blower fan.
To achieve these goals, the present invention is by the following technical solutions:
A kind of two oscillator driving type piezoelectric actuator blower fans of the present invention, comprise the pump housing, the first piezoelectric vibrator, the second piezoelectric vibrator and end cap, wherein:
The first piezoelectric vibrator and the second piezoelectric vibrator are piezoelectric material thin slice and the bonding formation of elastic base plate, described the second piezoelectric vibrator central position is furnished with a through hole and is called oscillator center hole, and the cyclic bending distortion along axial direction can occur piezoelectric vibrator under the effect of alternating voltage;
The pump housing is the rectangular block that a thickness is less, has the first piezoelectric vibrator mounting groove in the lower surface arrangement of the pump housing, and the degree of depth of described the first piezoelectric vibrator mounting groove is greater than the first piezoelectric vibrator thickness and the first piezoelectric vibrator center distortion peak value sum; Be furnished with the second piezoelectric vibrator mounting groove at the upper surface of the pump housing, the degree of depth of described the second piezoelectric vibrator mounting groove is greater than the second piezoelectric vibrator thickness and the second piezoelectric vibrator center distortion peak value sum, and the distance between the first piezoelectric vibrator mounting groove bottom surface and the second piezoelectric vibrator mounting groove bottom surface is greater than two oscillator central limit displacement sums and is less than 10mm; Arrange a chamber hole at the bottom centre position of described the first piezoelectric vibrator mounting groove, described chamber hole is communicated with the first piezoelectric vibrator mounting groove with the second piezoelectric vibrator mounting groove, described chamber hole diameter is less than the diameter of two oscillator mounting grooves, and is less than 30% of piezoelectric vibrator diameter with oscillator mounting hole difference in diameter;
Described the first piezoelectric vibrator is arranged in the first piezoelectric vibrator mounting groove, and described the second piezoelectric vibrator is arranged in the second piezoelectric vibrator mounting groove, and two oscillators are installed for sealing, and after installing, two oscillators and the pump housing have formed the cavity of a sealing jointly; There is reciprocal variation in cavity volume, cavity is communicated with outside by the oscillator center hole on the second piezoelectric vibrator along with the vibration of piezoelectric vibrator;
End cap is the thin slice of a rectangle, there are at least 3 support rims in the lower surface arrangement of end cap, between each support rim, there is gap, be furnished with flow-out hole at end cap and oscillator center hole corresponding position, the lower surface of described support rim coordinates installation with the upper surface of the pump housing, along with the reciprocal variation of cavity volume, gas flows into or outflow cavity from flow-out hole by oscillator center hole; After end cap is installed, the gap between end cap, the pump housing and support rim forms the horizontal run vertical with flow-out hole with oscillator mesopore.
When work, under the effect of alternating voltage, there is back and forth distortion in the first piezoelectric vibrator and the second piezoelectric vibrator, and distortion is pointed to simultaneously increases cavity volume direction (or point to and reduce cavity volume direction simultaneously), the volume of cavity occurs back and forth to change, cause that gas flow crosses oscillator center hole and flow-out hole, form local depression at the intersectional region of center hole, flow-out hole and described horizontal run; When cavity volume increases, inside cavity pressure decreased, gas sucks along oscillator center hole and enters cavity formation suction high velocity air from flow-out hole, and described suction high velocity air forms local depression in runner confluence, and the gas sucking from horizontal run enters cavity along with sucking high velocity air; When cavity volume reduces, inside cavity pressure rise, gas flows out to form to flow-out hole direction through oscillator center hole discharges high velocity air, and described discharge high velocity air forms local depression in runner confluence, and the gas sucking from horizontal run is discharged from going out head piece along with discharging high velocity air; Working procedure has formed gas and has sucked from horizontal run, the dynamic gas driving force of discharging from going out head piece.
Brief description of the drawings
Fig. 1 is a kind of two oscillator driving type piezoelectric actuator blower fan structure schematic diagram of the present invention.
Fig. 2 is structure and the assembly relation schematic diagram of each first angle of parts in the present invention.
Fig. 3 is structure and the assembly relation schematic diagram of second angle of each parts in the present invention.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, of the present invention pair of oscillator driving type piezoelectric actuator blower fan is made up of the first piezoelectric vibrator 1, the second piezoelectric vibrator 2, the pump housing 3 and end cap 5, wherein:
The first piezoelectric vibrator 1 is piezoelectric material thin slice 11 and the bonding formation of elastic base plate 12, described the second piezoelectric vibrator 2 is piezoelectric material thin slices 21 and the bonding formation of elastic base plate 22 that center has through hole, and the through hole forming in central position is called oscillator center hole 23;
The pump housing 3 is rectangular blocks that a thickness is less, has the first piezoelectric vibrator mounting groove 31 in the lower surface arrangement of the pump housing 3, and the degree of depth of described the first piezoelectric vibrator mounting groove 31 is greater than the first piezoelectric vibrator 1 thickness and the first piezoelectric vibrator 1 center distortion peak value sum; Be furnished with the second piezoelectric vibrator mounting groove 32 at the upper surface of the pump housing 3, the degree of depth of described the second piezoelectric vibrator mounting groove 32 is greater than the second piezoelectric vibrator 2 thickness and the second piezoelectric vibrator 2 center distortion peak value sums, and the distance between the first piezoelectric vibrator mounting groove 31 bottom surfaces and the second piezoelectric vibrator mounting groove 32 bottom surfaces is greater than two oscillator central limit displacement sums and is less than 10mm; Arrange a chamber hole 33 at the bottom centre position of described the first piezoelectric vibrator mounting groove 31, described chamber hole 33 is communicated with the first piezoelectric vibrator mounting groove 31 with the second piezoelectric vibrator mounting groove 32, described chamber hole 33 diameters are less than the diameter of two oscillator mounting grooves, and are less than 30% of piezoelectric vibrator diameter with oscillator mounting groove difference in diameter;
Described the first piezoelectric vibrator 1 is arranged in the first piezoelectric vibrator mounting groove 31, described the second piezoelectric vibrator 2 is arranged in the second piezoelectric vibrator mounting groove 32, two oscillators are sealing installation, after installing, two oscillators and cavity part have formed the cavity 4 of a sealing jointly, and described cavity 4 is communicated with outside by the oscillator center hole 23 on the second piezoelectric vibrator 2;
End cap 5 is thin slices of a rectangle, there are at least 3 support rims 51 in the lower surface arrangement of end cap 5, there is gap 52 in 51 of each support rims, on end cap 5, be furnished with flow-out hole 53 with oscillator center hole 23 corresponding positions, the lower surface of described support rim 51 coordinates installation with the upper surface of the pump housing 3, forms the horizontal run vertical with flow-out hole with oscillator mesopore in end cap 5, the pump housing 3 and gap 52.
Claims (2)
1. a two oscillator driving type piezoelectric actuator blower fan, comprise the pump housing, the first piezoelectric vibrator, the second piezoelectric vibrator and end cap, wherein: the first piezoelectric vibrator and the second piezoelectric vibrator are piezoelectric material thin slice and the bonding formation of elastic base plate, and described the second piezoelectric vibrator central position is furnished with a through hole and is called oscillator center hole; The pump housing is the rectangular block that a thickness is less, there is the first piezoelectric vibrator mounting groove in the lower surface arrangement of the pump housing, be furnished with the second piezoelectric vibrator mounting groove at the upper surface of the pump housing, arrange a chamber hole at the bottom centre position of described the first piezoelectric vibrator mounting groove, described chamber hole is communicated with the first piezoelectric vibrator mounting groove with the second piezoelectric vibrator mounting groove; Described the first piezoelectric vibrator is arranged in the first piezoelectric vibrator mounting groove, described the second piezoelectric vibrator is arranged in the second piezoelectric vibrator mounting groove, two oscillators and the pump housing have formed the cavity of a sealing jointly, and cavity is communicated with outside by the oscillator center hole on the second piezoelectric vibrator; End cap is the thin slice of a rectangle, there are at least 3 support rims in the lower surface arrangement of end cap, between each support rim, there is gap, be furnished with flow-out hole at end cap and oscillator center hole corresponding position, the lower surface of described support rim coordinates installation with the upper surface of the pump housing, and the gap between end cap, the pump housing and support rim forms the horizontal run vertical with flow-out hole with oscillator mesopore.
2. according to claim 1 pair of oscillator driving type piezoelectric actuator blower fan, it is characterized in that: described the first piezoelectric vibrator and the second piezoelectric vibrator can adopt the single-chip piezoelectric vibrator being formed on elastic base plate by a slice piezoelectric material sheet adhering, also can adopt the twin lamella piezoelectric vibrator being formed in elastic base plate both sides by two piezoelectric material sheet adherings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399114.3U CN203939730U (en) | 2014-07-20 | 2014-07-20 | A kind of two oscillator driving type piezoelectric actuator blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399114.3U CN203939730U (en) | 2014-07-20 | 2014-07-20 | A kind of two oscillator driving type piezoelectric actuator blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939730U true CN203939730U (en) | 2014-11-12 |
Family
ID=51859046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420399114.3U Withdrawn - After Issue CN203939730U (en) | 2014-07-20 | 2014-07-20 | A kind of two oscillator driving type piezoelectric actuator blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100543A (en) * | 2014-07-20 | 2014-10-15 | 长春隆美科技发展有限公司 | Double-oscillator piezoelectric drive-type fan |
| CN110107487A (en) * | 2019-06-13 | 2019-08-09 | 吉林大学 | A kind of Valveless piezoelectric air pump based on synthesizing jet-flow principle |
-
2014
- 2014-07-20 CN CN201420399114.3U patent/CN203939730U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100543A (en) * | 2014-07-20 | 2014-10-15 | 长春隆美科技发展有限公司 | Double-oscillator piezoelectric drive-type fan |
| CN104100543B (en) * | 2014-07-20 | 2019-07-05 | 长春隆美科技发展有限公司 | A kind of double oscillator driving type piezoelectric actuator blowers |
| CN110107487A (en) * | 2019-06-13 | 2019-08-09 | 吉林大学 | A kind of Valveless piezoelectric air pump based on synthesizing jet-flow principle |
| CN110107487B (en) * | 2019-06-13 | 2024-07-19 | 吉林大学 | Valveless piezoelectric air pump based on synthetic jet principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104832407A (en) | Double-vibrator piezoelectric driving micro fan | |
| CN204436756U (en) | A kind of mode of resonance piezoelectric pump based on inertial drive | |
| JP5012889B2 (en) | Piezoelectric micro blower | |
| EP2306019A1 (en) | Piezoelectric microblower | |
| EP2090781A1 (en) | Piezoelectric micro-blower | |
| CN103994059B (en) | Resonance piezoelectric fan with cymbal-shaped cavity | |
| JP2018042453A (en) | Piezoelectric actuator and miniature fluid control device using the same | |
| SG176225A1 (en) | Pump with disc-shaped cavity | |
| CN203939730U (en) | A kind of two oscillator driving type piezoelectric actuator blower fan | |
| CN204634239U (en) | A kind of driving type piezoelectric actuator heat radiation module | |
| CN201187454Y (en) | Environment protection type vacuum pump | |
| CN103925199A (en) | Novel laminated piezoelectric diaphragm pump | |
| CN203796531U (en) | Novel laminated type piezoelectric diaphragm pump | |
| CN104768354A (en) | Piezoelectric driving type heat dissipation module | |
| CN203939729U (en) | A kind of driving type piezoelectric actuator mini fan | |
| CN104100543A (en) | Double-oscillator piezoelectric drive-type fan | |
| CN204425881U (en) | A kind of driving type piezoelectric actuator heat radiation module | |
| CN203939728U (en) | A kind of micro piezoelectric axial-flow blower | |
| CN104100542A (en) | Piezoelectric driving type micro fan | |
| CN113464410B (en) | Pressure stepless adjustable large-flow piezoelectric pump | |
| CN105626515A (en) | Pump | |
| CN203939677U (en) | A kind of resonant piezoelectricity blower fan of big cymbals shape cavity | |
| CN203867831U (en) | Piezoelectric cantilever beam drive type piezoelectric diaphragm pump | |
| CN104837315A (en) | Piezoelectric driving radiating module | |
| CN203867834U (en) | Cavity-valve integrated piezoelectric pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20190705 |
|
| AV01 | Patent right actively abandoned |