CN2075262U - Mini-fan made of piezoceramics - Google Patents
Mini-fan made of piezoceramics Download PDFInfo
- Publication number
- CN2075262U CN2075262U CN 90222446 CN90222446U CN2075262U CN 2075262 U CN2075262 U CN 2075262U CN 90222446 CN90222446 CN 90222446 CN 90222446 U CN90222446 U CN 90222446U CN 2075262 U CN2075262 U CN 2075262U
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- piezoelectric ceramic
- metal sheet
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- parallel
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Abstract
本实用新型涉及一种压电陶瓷微型风扇，包括机 壳和至少一个振动片，该振动片包括一金属薄片和粘 贴在金属薄片一端两侧表面的两个压电陶瓷薄片，它 们通过固定端支座固定在机壳上，金属薄片的另一端 自由，两个压电陶瓷薄片通过金属薄片并联交流电 源。通电时，由于压电陶瓷薄片的逆压电效应使振动 片产生弯曲振动，可输出高速定向的微风。本实用新 型体积小、重量轻，耗电少，可安装在各类仪器内部对 局部空间进行通风降温。
The utility model relates to a piezoelectric ceramic miniature fan, which comprises a casing and at least one vibrating piece. The vibrating piece includes a metal sheet and two piezoelectric ceramic sheets pasted on the surface of one end of the metal sheet. The base is fixed on the casing, the other end of the metal sheet is free, and the two piezoelectric ceramic sheets are connected to an AC power supply in parallel through the metal sheet. When energized, due to the inverse piezoelectric effect of the piezoelectric ceramic sheet, the vibrating piece produces bending vibration, which can output high-speed directional breeze. The utility model has the advantages of small volume, light weight and low power consumption, and can be installed in various instruments to ventilate and cool local spaces.
Description
The utility model relates to a kind of piezoelectric constant micro fan, and the vibration that belongs to by vibrating reed produces the device class of gentle breeze so that local space is ventilated.
Present widely used electric fan is to produce wind with the rotation of flabellum to reach and make purpose indoor or that certain place ventilates.But the general power consumption of electric fan is more, and volume is bigger, and leakage field, and its application area is restricted.Particularly in all kinds of electronic instruments, equipment, its weak link individual elements often causes damaging because of heat accumulation, and makes the entire equipment cisco unity malfunction, if adopt a kind of miniature ventilation plant, be fixedly mounted near the fragile element of above-mentioned this class, will have the effect of getting twice the result with half the effort.
The purpose of this utility model is to provide a kind of piezoelectric constant micro fan, and volume is little, and power consumption is low, can be widely used in each class of electronic devices, the instrument, to the directed air-supply of local space wherein, ventilates cool effect to produce.
The purpose of this utility model reaches as follows: a kind of piezoelectric constant micro fan, comprise casing and at least one vibrating reed, and this vibrating reed comprises a sheet metal and sticks on two piezoelectric ceramic thin sheets of sheet metal one end both side surface.These two piezoelectric ceramic thin sheets are pressed identical polar orientation setting, and are fixed on the casing by the fixed end bearing.The other end of sheet metal is in free state, is called projecting end.These two piezoelectric ceramic thin sheets connect ac power supply with parallel way by sheet metal.The thickness of sheet metal is 0.07～0.3mm, and the thickness of piezoelectric ceramic thin sheet is 0.18～0.28mm.When energising, above-mentioned two piezoelectric ceramic thin sheets will alternately produce the geometry deformation that extends and shorten owing to inverse piezoelectric effect, thereby cause the flexure vibrations of vibrating reed.When the natural frequency of the frequency of alternating voltage and vibrating reed equates, because the resonance of the two enlarges markedly the projecting end amplitude of tinsel, just can stably export the shallow bid gas of high speed, orientation, blow to the direction of this projecting end indication, produce and ventilate cool effect.
The purpose of this utility model can also following mode reach: by two vibrating reed that is arranged in parallel ac power supplys in parallel, the wind-force of Chan Shenging is strong like this, and directionality is good.
Piezoelectric constant micro fan of the present utility model can also comprise vibrating reed and a plurality of cold sheet metal of two ac power supplys in parallel, and they are radially evenly distributed around a revolution annulus, are provided with bearing in the revolution annulus.One end of each sheet metal is clamped in the breach that turns round on the annulus, and the other end is in free state; Two vibrating reeds are oppositely arranged along diametric(al), its end that is stained with piezoelectric ceramic thin sheet is fixed on the casing of sidewall by the fixed end bearing, and the other end also is clamped in the breach of revolution annulus, and the loam cake place of casing is provided with intake grill, and sidewall is provided with exhaust outlet.When energising, above-mentioned two vibrating reeds generation flexure vibrations are alternately rotated on the edge around its centre bearing clockwise with counterclockwise thereby drive turning circle, turn round annulus and will drive radially sheet metal resonance generation gentle breeze of thereon each of card, air enters from intake grill, discharges from exhaust outlet.
Sheet metal used in the piezoelectric constant micro fan of the present utility model can adopt alloyed steel, beryllium bronze or phosphor bronze material.
The utility model has following advantage than prior art:
1, volume is small, and is in light weight, can be directly installed on all kinds of instrument internal, ventilates the efficient height to certain local space is directed.
2, energy saving, its power is less than 1 watt.
3, high temperature resistant, can be 150 ℃ of following proper functioning, self-heating is few.
4, compact structure, low cost of manufacture, long service life.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the three-dimensional structure diagram of a kind of single vibrating reed type piezoelectric constant micro fan of the present utility model.
Fig. 2 is the structure principle chart of the vibrating reed of the foregoing description of the present utility model.
Fig. 3 is the three-dimensional structure diagram of a kind of pair of vibrating reed type piezoelectric constant micro fan of the present utility model.
Fig. 4 is the structure sectional view of a kind of turning circle ring type piezoelectric constant micro fan of the present utility model.
Fig. 5 is the left view of the foregoing description.
The utility model will be further described as follows in conjunction with the accompanying drawings:
See figures.1.and.2.A kind of single vibrating reed type piezoelectric constant micro fan, comprise a casing (1) and a vibrating reed (2), vibrating reed comprises sheet metal (21) and sticks on two piezoelectric ceramic thin sheets (22) and (23) of the both side surface of sheet metal (21) one ends, piezoelectric ceramic thin sheet (22) is arranged by identical polar orientation with (23), the end that sheet metal (21) is stained with piezoelectric ceramic thin sheet is fixed on the casing (1) the other end freedom of sheet metal (21) by fixed end bearing (3).Piezoelectric ceramic thin sheet (22) and (23) connect ac power supply (4) with parallel way by sheet metal (21).The thickness of sheet metal (21) is 0.20mm, and the thickness of piezoelectric ceramic thin sheet (22) and (23) is 0.22mm.Alternating voltage is 70 volts.Sheet metal (21) adopts alloy steel material.
Fig. 3 is an a kind of pair of vibrating reed type piezoelectric constant micro fan, two vibrating reeds that are arranged in parallel (2), 70 volts of ac power supplys in parallel, its end that is stained with piezoelectric ceramic thin sheet is fixed on the casing (1), the wind-force that this piezoelectric constant micro fan produces is stronger, directionality is better, and machine volume is 20 * 40 * 80mm.
With reference to Fig. 4 and Fig. 5, this is a kind of turning circle ring type piezoelectric constant micro fan, it comprises vibrating reed (2) and 10 cold sheet metals (5) of two ac power supplys in parallel, they are radially evenly distributed around a revolution annulus (6), are provided with bearing (10) in the revolution annulus (6); Two vibrating reeds (2) are oppositely arranged along diametric(al), its end that is stained with piezoelectric ceramic thin sheet is fixed on the casing (1) of sidewall by fixed end bearing (3), and the other end is clamped in the breach (9) of revolution annulus (6), each sheet metal (5) radially evenly distributes, one end be clamped on the revolution annulus (6) breach (9) in, the other end freedom, the loam cake place of casing is provided with intake grill (7), is equipped with exhaust outlet (8) all around on the sidewall.Sheet metal (5) adopts alloy steel material.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90222446 CN2075262U (en) | 1990-10-26 | 1990-10-26 | Mini-fan made of piezoceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90222446 CN2075262U (en) | 1990-10-26 | 1990-10-26 | Mini-fan made of piezoceramics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2075262U true CN2075262U (en) | 1991-04-17 |
Family
ID=4900383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90222446 Expired - Lifetime CN2075262U (en) | 1990-10-26 | 1990-10-26 | Mini-fan made of piezoceramics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2075262U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192136A (en) * | 2010-03-10 | 2011-09-21 | 株式会社村田制作所 | Piezoelectric fan and cooling device |
| CN103104526A (en) * | 2013-01-31 | 2013-05-15 | 新生源企业有限公司 | Structure and method of piezoelectric fan for heat radiation |
| CN106574637A (en) * | 2014-07-30 | 2017-04-19 | 株式会社R-Flow | Piezo fan |
| CN110497773A (en) * | 2019-09-02 | 2019-11-26 | 黄河交通学院 | A kind of air conditioning for automobiles air flow regulator |
| CN111734691A (en) * | 2020-06-29 | 2020-10-02 | 浙江大学 | A flapping piezoelectric ceramic cooling fan |
-
1990
- 1990-10-26 CN CN 90222446 patent/CN2075262U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192136A (en) * | 2010-03-10 | 2011-09-21 | 株式会社村田制作所 | Piezoelectric fan and cooling device |
| CN102192136B (en) * | 2010-03-10 | 2016-03-16 | 株式会社村田制作所 | Piezoelectric fan and cooling unit |
| CN103104526A (en) * | 2013-01-31 | 2013-05-15 | 新生源企业有限公司 | Structure and method of piezoelectric fan for heat radiation |
| 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 |
| CN110497773A (en) * | 2019-09-02 | 2019-11-26 | 黄河交通学院 | A kind of air conditioning for automobiles air flow regulator |
| CN110497773B (en) * | 2019-09-02 | 2022-11-04 | 黄河交通学院 | A kind of air conditioning device for automobile air conditioner |
| CN111734691A (en) * | 2020-06-29 | 2020-10-02 | 浙江大学 | A flapping piezoelectric ceramic cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |