CN102130081A - Heat-radiating device and air current generating device thereof - Google Patents
Heat-radiating device and air current generating device thereof Download PDFInfo
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- CN102130081A CN102130081A CN2010103001972A CN201010300197A CN102130081A CN 102130081 A CN102130081 A CN 102130081A CN 2010103001972 A CN2010103001972 A CN 2010103001972A CN 201010300197 A CN201010300197 A CN 201010300197A CN 102130081 A CN102130081 A CN 102130081A
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- air
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- vibrating diaphragm
- nozzle
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Abstract
The invention discloses a heat-radiating device comprising a heat radiator and an air current generating device, wherein the heat radiator is provided with a plurality of air current channels; the air current generating device comprises a plurality of air current generating units which are overlapped together; each air current generating unit comprises a box body, a pair of vibrating diaphragms and a spray nozzle, wherein the pair of vibrating diaphragms is arranged in the box body; a chamber is formed between the pair of vibrating diaphragms in the box body; the spray nozzle is arranged at one side of the box body, which is close to the heat radiator and corresponds to the chamber; a flow channel is arranged in the spray nozzle; the inner end of the flow channel is communicated with the chamber; the outer end of the flow channel corresponds to the air current channel of the heat radiator; each vibrating diaphragm is provided with a piezoelectric chip; and the pair of piezoelectric chips is driven by the piezoelectric chips to compress gas in the chamber and generate air current sprayed from an outlet of the flow channel to the air current channel of the heat radiator.
Description
Technical field
The present invention relates to a kind of heat abstractor, relate in particular to a kind of heat abstractor that electronic installation dispels the heat to heat-generating electronic elements and air flow-producing device that is adopted thereof of being used for.
Background technology
In electronic installations such as notebook computer, often adopt a heat abstractor that the electronic component such as the CPU of its inside are dispelled the heat.This heat abstractor comprises a radiator fan and a groups of fins, and this groups of fins is located at the exit of centrifugal fan and by heat pipe and electronic component hot link.The heat that electronic component produced reaches groups of fins by heat pipe, and the radiator fan running produces air-flow and blows to groups of fins, takes away with the heat that will reach groups of fins.
Yet, when radiator fan turns round with higher speed, be easy to generate noise and might cause running unstable.In addition, in the radiator fan, for reaching certain air quantity, motor must possess corresponding size, thereby can't satisfy the requirement that electronic installation develops towards lightening direction.
Summary of the invention
In view of this, be necessary to provide a kind of air flow-producing device that is fit to carry out miniaturized design and has better quiet effect, and a kind of heat abstractor that uses this air flow-producing device is provided.
A kind of air flow-producing device, comprise an air-flow generation unit, described air-flow generation unit comprises a casing, a pair of vibrating diaphragm and a nozzle, this is located in the casing vibrating diaphragm, form a chamber in this casing between this is to vibrating diaphragm, this nozzle is located at a side of this casing and to should the chamber setting, and by this nozzle this chamber is in communication with the outside, each vibrating diaphragm is provided with a piezoelectric patches, and this is to the gas of vibrating diaphragm in the driving lower compression chamber of piezoelectric patches and produce an air-flow that is outwards sprayed by nozzle.
A kind of heat abstractor, comprise a radiator and an air flow-producing device, this radiator is provided with some gas channels, this air flow-producing device comprises some air-flow generation units that stack together, each air-flow generation unit comprises a casing, an a pair of vibrating diaphragm and a nozzle, this is located in the casing vibrating diaphragm, between this is to vibrating diaphragm, form a chamber in this casing, this nozzle is located at this casing near a side of radiator and to should the chamber setting, be provided with a runner in this nozzle, the inner of this runner is connected with this chamber, the outer end of this runner and the corresponding setting of the gas channel of radiator, each vibrating diaphragm is provided with a piezoelectric patches, and this is sprayed to an air-flow of the gas channel of radiator by the outlet of the runner of nozzle to the gas of vibrating diaphragm in the driving lower compression chamber of piezoelectric patches and generation.
In the said flow generation device, drive the vibrating diaphragm motion by piezoelectric patches and produce air-flow, need not the astigmatism Hot-air fan parts such as motor, rotor equally are set, therefore have quiet preferably effect.This air-flow generation unit is simple in structure, is fit to carry out the slimming design.
Description of drawings
With reference to the accompanying drawings, in conjunction with the embodiments the present invention is further described.
Fig. 1 is the preferred embodiment combination schematic diagram of heat abstractor of the present invention.
Fig. 2 is the three-dimensional exploded view of heat abstractor shown in Figure 1.
The view that Fig. 3 is looked by another angle for heat abstractor shown in Figure 2.
Fig. 4 is the cutaway view of heat abstractor shown in Figure 1 along the IV-IV line.
Fig. 5 is a schematic diagram that shows the heat abstractor course of work of displayed map 1.
Fig. 6 is the another schematic diagram that shows the heat abstractor course of work of displayed map 1.
Fig. 7 is a schematic diagram again that shows the heat abstractor course of work of displayed map 1.
The main element symbol description
| |
100 |
| Air flow-producing |
10 |
| |
11 |
| |
111 |
| The air- |
12 |
| |
121 |
| Vibrating |
122 |
| |
122a、 |
| Nozzle | |
| 123 | |
| Runner | 1231 |
| |
124 |
| |
125 |
| The |
126 |
| |
127 |
| |
20 |
| |
21 |
| |
22 |
| First air- |
31 |
| Second air- |
32 |
| |
33 |
Embodiment
As shown in Figure 1 to Figure 3 for a preferred embodiment of heat abstractor of the present invention.This heat abstractor 100 comprises an air flow-producing device 10 and a radiator 20.
See also Fig. 4, this air flow-producing device 10 comprises a housing 11 and is located at some air-flow generation units 12 in this housing 11.These air-flow generation unit 12 along continuous straight runs pile up setting.Each air-flow generation unit 12 comprises a rectangular-shaped casing 121, be located at a pair of vibrating diaphragm 122 in this casing 121 and be located at a nozzle 123 of these casing 121 1 sides.This is parallel to each other to vibrating diaphragm 122 and goes to upper and lower at interval and is provided with, thereby the inner space of casing 121 is isolated into three chambers, promptly this to one first chamber 124 between the vibrating diaphragm 122, be positioned at one second chamber 125 above this first chamber 124 and be positioned at one the 3rd chamber 126 below this first chamber 124.The middle part of each vibrating diaphragm 122 is provided with a piezoelectric patches 127, and this piezoelectric patches 127 can combine with vibrating diaphragm 122 by bonding mode.
This nozzle 123 is located at this casing 121 and is provided with near an end of radiator 20 and first chamber 124 of corresponding casing 121.Be provided with a runner 1231 that outwards is gradually-reducing shape in this nozzle 123, the inner of this runner 1231 is connected with first chamber 124 of casing 121.
One side of the close radiator 20 of this housing 11 is provided with an opening 111, and these air-flow generation units 12 are in this opening 111 is installed in this housing 11, and described air-flow generation unit 12 is fixing by this housing 11.In other embodiment, these air-flow generation units 12 also can be fixed together in other way, for example bonding or gummed.
This radiator 20 comprises some fin 21, and these fin 21 along continuous straight runs pile up setting, forms a gas channel 22 between adjacent two fin 21.When radiator 20 and air flow-producing device 10 are combined, the nozzle 123 of air-flow generation unit 12 and the 22 corresponding settings of the gas channel of radiator 20, the outer end of the runner 1231 of this nozzle 123 and the inlet of gas channel 22 be a distance at interval.
During these air flow-producing device 10 work, apply alternating voltage by piezoelectric patches 127 to each air-flow generation unit 12, make piezoelectric patches 127 produce flexural deformation alternately at its thickness direction, and drive this to vibrating diaphragm 122 move toward one another or motion dorsad simultaneously, so that the gases in first chamber 124 of casing 121 are pushed in the runner 1231 of nozzle 123, thereby produce an air-flow and spray to radiator 20 at the place, outer end of nozzle 123.This air-flow flows forward and enters in the gas channel 22 of radiator 20 and carries out heat exchange with the fin 21 with radiator 20, thereby the heat that will reach fin 21 is taken away.
See also Fig. 5 to Fig. 7, specify the production process of air-flow below with period of motion of each air-flow generation unit 12.
This production process is divided into three phases.In the phase I, the piezoelectric patches 127 of each air-flow generation unit 12 is applied alternating voltage, make this to vibrating diaphragm 122 move toward one another simultaneously earlier under the drive of piezoelectric patches 127, promptly this to vibrating diaphragm 122 all to 124 bendings of first chamber to compress first chamber 124.As shown in Figure 5, this is moved among Fig. 6 shown in the dotted line 122a in the process of position by original horizontal position vibrating diaphragm 122, gas in first chamber 124 is compressed and motion in the runner 1231 of nozzle 123, thereby in the going out interruption-forming one first air-flow 31 and blow to radiator 20 of nozzle 123, this first air-flow 31 travels forward and carries out heat exchange with fin 21 and take away with the heat that will reach fin 21 along the gas channel 22 between the fin 21.
In second stage, this begins motion dorsad to vibrating diaphragm 122, and is back to horizontal level shown in Fig. 6 by the motion of dotted line position shown in Fig. 5.In this process, the gas channel 22 first interior air-flows 31 that enter radiator 20 move forward, simultaneously the air of nozzle 123 peripheries is sucked in the gas channel 22 of radiator 20 to form one second air-flow 32, and the flow of this second air-flow 32 can be up to ten times of first air-flow 31.
In the phase III, this continues motion dorsad to vibrating diaphragm 122, and moves to the position shown in the dotted line 122b among Fig. 7 by horizontal level shown in Figure 6.In this process, the volume of first chamber 124 is expanded, the cold air of nozzle 123 peripheries is (shown in arrow among Fig. 6 33) in nozzle 123 is sucked into first chamber 124, for using in next period of motion, gas channel 22 32 interior in second air-flows that enter radiator 20 move forward.
In this air-flow generation unit 12,, can drive its vibrating diaphragm 122 and carry out above-mentioned cycle movement repeatedly, thereby produce the air-flow that blows to radiator 20 continuously, so that the heat on the radiator 20 is taken away by piezoelectric patches 127 is applied alternating voltage.In addition, by to applying the alternating voltage of different cycles on the piezoelectric patches 127, the flow size of the air-flow that may command produced is so that air-flow is utilized fully.
In this heat abstractor 100, provide air-flow to brush radiator 20 to take away the heat of radiator 20 by air flow-producing device 10.The quantity of the air-flow generation unit 12 in this air flow-producing device 10 can be selected as requested.Need not the astigmatism Hot-air fan in this air-flow generation unit 12 parts such as motor, rotor equally are set, therefore have quiet preferably effect.This air-flow generation unit 12 is simple in structure, is fit to carry out the slimming design.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (11)
1. air flow-producing device, comprise an air-flow generation unit, it is characterized in that: described air-flow generation unit comprises a casing, a pair of vibrating diaphragm and a nozzle, this is located in the casing vibrating diaphragm, between this is to vibrating diaphragm, form a chamber in this casing, this nozzle is located at a side of this casing and to should the chamber setting, and this chamber is in communication with the outside by this nozzle, each vibrating diaphragm is provided with a piezoelectric patches, and this is to the gas of vibrating diaphragm in the driving lower compression chamber of piezoelectric patches and produce an air-flow that is outwards sprayed by nozzle.
2. air flow-producing device as claimed in claim 1 is characterized in that: be provided with a runner in this nozzle, this runner is gradually-reducing shape along the flow direction of this air-flow.
3. air flow-producing device as claimed in claim 1, it is characterized in that: this is arranged in parallel to vibrating diaphragm.
4. air flow-producing device as claimed in claim 1 is characterized in that: this casing is rectangular-shaped.
5. air flow-producing device as claimed in claim 1 is characterized in that: also comprise a housing, described air-flow generation unit is fixed in this housing.
6. heat abstractor, comprise a radiator and an air flow-producing device, this radiator is provided with some gas channels, it is characterized in that: this air flow-producing device comprises some air-flow generation units that stack together, each air-flow generation unit comprises a casing, an a pair of vibrating diaphragm and a nozzle, this is located in the casing vibrating diaphragm, between this is to vibrating diaphragm, form a chamber in this casing, this nozzle is located at this casing near a side of radiator and to should the chamber setting, be provided with a runner in this nozzle, the inner of this runner is connected with this chamber, the outer end of this runner and the corresponding setting of the gas channel of radiator, each vibrating diaphragm is provided with a piezoelectric patches, and this is sprayed to an air-flow of the gas channel of radiator by the outlet of the runner of nozzle to the gas of vibrating diaphragm in the driving lower compression chamber of piezoelectric patches and generation.
7. heat abstractor as claimed in claim 6 is characterized in that: the runner of this nozzle is gradually-reducing shape along the flow direction of this air-flow.
8. heat abstractor as claimed in claim 6, it is characterized in that: this is arranged in parallel to vibrating diaphragm.
9. heat abstractor as claimed in claim 6 is characterized in that: this air flow-producing device also comprises a housing, and described air-flow generation unit is fixed in this housing.
10. heat abstractor as claimed in claim 6 is characterized in that: this radiator comprises some fin that pile up mutually, and described gas channel is formed between the adjacent fin.
11. heat abstractor as claimed in claim 6 is characterized in that: the outer end of the runner of this nozzle and the inlet of gas channel be a distance at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103001972A CN102130081A (en) | 2010-01-12 | 2010-01-12 | Heat-radiating device and air current generating device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103001972A CN102130081A (en) | 2010-01-12 | 2010-01-12 | Heat-radiating device and air current generating device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102130081A true CN102130081A (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010103001972A Pending CN102130081A (en) | 2010-01-12 | 2010-01-12 | Heat-radiating device and air current generating device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN102130081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143782A1 (en) * | 2014-03-28 | 2015-10-01 | 中兴通讯股份有限公司 | Heat dissipation apparatus for mobile communications device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265777A (en) * | 1997-05-30 | 2000-09-06 | Cts公司 | Low-profile axial-flow single-blade piezoelectric fan |
| US20040190305A1 (en) * | 2003-03-31 | 2004-09-30 | General Electric Company | LED light with active cooling |
| US20040253130A1 (en) * | 2003-01-06 | 2004-12-16 | Ioan Sauciuc | Electronic thermal management |
| CN101524010A (en) * | 2006-10-04 | 2009-09-02 | 奥地利西门子公司 | Switched mode power supply |
| CN101542122A (en) * | 2006-12-09 | 2009-09-23 | 株式会社村田制作所 | Piezoelectric micro-blower |
-
2010
- 2010-01-12 CN CN2010103001972A patent/CN102130081A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265777A (en) * | 1997-05-30 | 2000-09-06 | Cts公司 | Low-profile axial-flow single-blade piezoelectric fan |
| US20040253130A1 (en) * | 2003-01-06 | 2004-12-16 | Ioan Sauciuc | Electronic thermal management |
| US20040190305A1 (en) * | 2003-03-31 | 2004-09-30 | General Electric Company | LED light with active cooling |
| CN101524010A (en) * | 2006-10-04 | 2009-09-02 | 奥地利西门子公司 | Switched mode power supply |
| CN101542122A (en) * | 2006-12-09 | 2009-09-23 | 株式会社村田制作所 | Piezoelectric micro-blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143782A1 (en) * | 2014-03-28 | 2015-10-01 | 中兴通讯股份有限公司 | Heat dissipation apparatus for mobile communications device |
| EP3125658A4 (en) * | 2014-03-28 | 2017-12-06 | ZTE Corporation | Heat dissipation apparatus for mobile communications device |
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Application publication date: 20110720 |