CN208047118U - Piezoelectric fan module, electronic equipment and protective case with the piezoelectric fan module - Google Patents
Piezoelectric fan module, electronic equipment and protective case with the piezoelectric fan module Download PDFInfo
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- CN208047118U CN208047118U CN201820260778.XU CN201820260778U CN208047118U CN 208047118 U CN208047118 U CN 208047118U CN 201820260778 U CN201820260778 U CN 201820260778U CN 208047118 U CN208047118 U CN 208047118U
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- piezoelectric fan
- electronic equipment
- fan module
- piezoelectric
- box body
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Abstract
The utility model provides a kind of piezoelectric fan module, electronic equipment and protective case with the piezoelectric fan module.The piezoelectric fan module includes：Box body, box body has interior accommodating space, and air inlet and air outlet are formed on box body；Piezoelectric fan blade, including support thin plate and be attached to the piezoelectric ceramic piece supported on thin plate；Electric connecting part supplies operating voltage for being electrically connected with external power supply the piezoelectric ceramic piece for the piezoelectric ceramic piece；The piezoelectric fan blade is located in the box body, and one end is the fixing end being fixedly connected with the box body, and the other end is the swinging end that can freely swing.According to the utility model, a kind of piezoelectric fan module with no electromagnetic interference, the high and low power consumption of wind speed, low noise is provided, so as to be installed in the small and thin electronic equipment of thickness.
Description
Technical field
The utility model is related to a kind of piezoelectric fan module, the electronic equipments and protective case of the piezoelectric fan module.
Background technology
With the continuous improvement of the application performance of portable electronic device, the power consumption of electronic equipment also accordingly increases, and brings
User plays game or opens excessively high problem of generating heat when multiple applications, especially for the portable electronic of miniaturization
Equipment (for example, mobile phone), heating problem are more prominent.
The prior art mainly cools down to the heat generating components of electronic equipment by two ways.A kind of mode is internal dissipates
Heat is led from heat generating components to athermic place, it is equal to carry out heat by hot mode, the main material for using good heat conductivity
Booth, it is excessively high to be unlikely to temperature.Heat can be distributed to other component (example by internal heat dissipating mode in a short time
Such as, shell) on, temporarily there is certain cooling-down effect.But be saturated when internal heat reaches, transfer heat to other component
Radiating mode cooling-down effect unobvious.Another way is external cooling mode, passes through external traditional propeller fan
Cooling.However, since propeller fan volume and thickness are big, and the minimizing of electronic equipment, light-weighted trend is disagreed.This
Outside, propeller fan has electromagnetic interference, noise big electronic equipment, is poorly suited for use on electronic equipment, especially electric
Sub- equipment.
Further, it is also possible to reduce power consumption and calorific value by way of software frequency reducing.Although reduction power consumption can be reached
With the effect of calorific value, but the performance of electronic equipment can be reduced, poor user experience, when use has interim card sense.
Utility model content
The purpose of this utility model is that solving the heat dissipation problem of electronic equipment for the electronic equipment of miniaturization, one is provided
Piezoelectric fan module of the kind with no electromagnetic interference, the high and low power consumption of wind speed, low noise.In addition, additionally providing a kind of with the pressure
The protective case of the electronic equipment of electric fan module and electronic equipment with the piezoelectric fan module.
To achieve the goals above, a kind of piezoelectric fan module is provided, the piezoelectric fan module includes：Box body, box
Body has interior accommodating space, and air inlet and air outlet are formed on box body；Piezoelectric fan blade, including support thin plate
With the piezoelectric ceramic piece being attached on support thin plate；Electric connecting part, for the piezoelectric ceramic piece to be electrically connected with external power supply
It connects, operating voltage is supplied for the piezoelectric ceramic piece；The piezoelectric fan blade is located in the box body, and one end is and the box
The fixing end that body is fixedly connected, the other end are the swinging end that can freely swing.
One side according to the present utility model, the box body include the upper shell and lower housing be combineding with each other, the air inlet
Mouth is formed on the upper shell and/or lower housing, and the air outlet is formed on the lower housing and close to the piezoelectricity
The swinging end of fan blade.
One side according to the present utility model, the box body are made of thermal conductive metallic material, the piezoelectric fan blade
Thickness is 0.1mm~0.5mm, and it is 0.3mm~0.7mm to swing up and down space, and the thickness of the box body is 1.5mm~3.0mm.
One side according to the present utility model, the piezoelectric fan module further include the driving circuit, the driving electricity
Road is arranged in the box body, and the driving circuit is electrically connected by the electric connecting part with the piezoelectric ceramic piece.
One side according to the present utility model, provides a kind of electronic equipment, and the electronic equipment further includes as described above
Piezoelectric fan module, the piezoelectric fan module be mounted on the electronic equipment inside.
One side according to the present utility model, the printing of the air inlet of the piezoelectric fan module close to the electronic equipment
Sites of heat generation setting on circuit board.
One side according to the present utility model, the piezoelectric fan module are mounted on the printed circuit board of the electronic equipment
On, the box body of the piezoelectric fan module is connect by Heat Conduction Material with the heating position on printed circuit board.
One side according to the present utility model, external power supply is the power supply of electronic equipment, for driving piezoelectric fan module
Driving circuit setting on the printed circuit board, the electric connecting part is connected to the power supply by driving circuit.
One side according to the present utility model is arranged in the shell of electronic equipment position corresponding with the air outlet
There is ventilation hole.
One side according to the present utility model, provides a kind of protective case for electronic equipment, and the protective case is embedded
Enter to have piezoelectric fan module as described above, position corresponding with the air inlet and air outlet opens up on the protective case
There is heat emission hole, the air inlet is towards the electronic equipment, and the air outlet is far from the electronic equipment.
One side according to the present utility model is also embedded with driving circuit in the protective case, and the driving circuit passes through
Electric connecting part is electrically connected with the piezoelectric ceramic piece of the piezoelectric fan module, and alternating voltage is supplied for the piezoelectric ceramic piece.
One side according to the present utility model is also embedded with near-field communication module, the near-field communication in the protective case
Module is electrically connected with the driving circuit, and power supply is provided for the driving circuit.
One side according to the present utility model, the protective case are additionally provided with the piezoelectric fan module and the electronics
The electrical connection pins of equipment electrical connection.
Technical solution according to the present utility model, by by piezoelectric fan modularization so that the size of piezoelectric fan module
Miniaturization, so as to be installed in the thin electronic equipment of small thickness.
Description of the drawings
By the description carried out below in conjunction with the accompanying drawings, the above and other purpose and feature of the utility model will become more
Add it is clear, wherein：
Fig. 1 is the local main view of the electronic equipment with piezoelectric fan module of first embodiment according to the present utility model
Figure；
Fig. 2 is the sectional view intercepted along the line A-A of Fig. 1；
Fig. 3 is the enlarged drawing of the piezoelectric fan module in Fig. 2；
Fig. 4 is the sectional view of the line B-B interception in Fig. 1；
Fig. 5 shows the protection of the electronic equipment with piezoelectric fan module of second embodiment according to the present utility model
The inner side view of set；
Fig. 6 shows the protection of the electronic equipment with piezoelectric fan module of second embodiment according to the present utility model
The outer side view of set；
Fig. 7 shows the sectional view of the line C-C interception along Fig. 5.
Specific implementation mode
Hereinafter, the embodiments of the present invention are described in detail with reference to the attached drawings.
Fig. 1 to Fig. 4 shows the electronic equipment with piezoelectric fan module of first embodiment according to the present utility model.
As shown, the piezoelectric fan module 200 of embodiment according to the present utility model include box body, piezoelectric fan blade 230 and
Electric connecting part 250.Box body have interior accommodating space, for accommodating piezoelectric fan blade 230, be additionally provided on box body into
Air port and air outlet.Piezoelectric fan blade 230 is long strip-board shape, is located in box body, and one end is to be fixed on consolidating on box body
Fixed end, the other end are the swinging end that can freely swing.Electric connecting part 250 is for piezoelectric ceramic piece and external power supply to be electrically connected
It connects, to supply operating voltage for piezoelectric fan blade 230,230 reciprocally swinging of driving piezoelectric fan blade generates stable gas
Stream.
Piezoelectric fan blade 230 is formed by the piezoelectric ceramic piece 240 on support thin plate and attaching support thin plate.Piezoelectric ceramics
Piece 240 is connect by electric connecting part 250 with external power supply, is applied alternating current for piezoelectric ceramic piece 240, is made piezoelectric ceramic piece
240 deform upon towards different directions, to drive piezoelectric fan blade 230 to generate bending vibration, by the swinging end of blade
Output high speed, stable air-flow forwards.Air inlet and air outlet can be formed at the different location of box body.In attached drawing 1-4 institutes
In the example shown, box body is combined together to form by upper shell 210 and lower housing 220, and air inlet is provided on upper shell 210
211, air outlet 221 is provided on lower housing 240.It, can be in upper shell 210 and lower housing 240 according to installation space condition
In any one on form air inlet, air inlet can also be respectively formed in upper shell 210 and lower housing 240.Air outlet
221 close to piezoelectric fan blade 230 swinging end be arranged.Correspondingly, corresponding with air outlet 221 on the shell of electronic equipment
Position be also equipped with heat emission hole/ventilation hole, so that the air-flow for carrying heat be set from the internal discharge of electronic equipment to electronics
Standby outside.
The thickness of piezoelectric fan blade 230 can be within the scope of 0.1~0.5mm, and the space swung up and down can be 0.3mm
The thickness for the box body that~0.7mm, upper shell 210 and lower housing 220 are formed can be in 1.5~3mm millimeters of ranges.Therefore, exist
When being installed in electronic equipment, too many space will not be occupied.In addition, by by piezoelectric fan modularity, adhesive tape can be passed through
Or the mode to screw is installed to the enclosure interior of electronic equipment, so that mounting process is simplified.
Upper shell 210 and lower housing 220 can be made of a highly heat conductive material, for example, by the copper with high thermal conductivity
At.Fan blade 230 can be by PET (poly terephthalic acid class plastics) piece of material slightly hard, stainless steel (SUS) piece system
At, can be about 0.2mm thickness.
The heating position that may be mounted at electronic equipment according to the piezoelectric fan module 200 of the utility model embodiment is attached
Closely.As shown in Figure 1, piezoelectric fan module 200 is mounted near heat source 30 (for example, central processing unit).Further, it is also possible to pass through
The material of good heat conductivity is thermally conducted to piezoelectric fan module by what heat source generated.For example, as shown in figures 1 and 3, by by height
Heat source 30 is connect by thermal transfer plate 40 made of Heat Conduction Material with the shell of piezoelectric fan module 200, to transfer heat to
The shell of piezoelectric fan module 200.Thermal transfer plate 40 can be made of copper or graphite, be covered in the upper of piezoelectric fan module 200
On shell 210, heat is conducted to upper shell 210.Offered in the part being stacked with upper shell 210, in thermal transfer plate 40 with
211 corresponding trepanning of air inlet.230 vibration at high speed of piezoelectric fan blade drives air-flow to enter tray interior from air inlet 211,
Then the outside of electronic equipment is discharged to from air outlet 221, to take away heat flowing through so that heat source 30 cools down.
Enclosure interior of the piezoelectric fan module 200 according to the present utility model in addition to may be mounted at electronic equipment, may be used also
To be hidden on the protective case of electronic equipment.Protective case is attached to the back side of electronic equipment so that piezoelectric fan module 200 corresponds to
In the sites of heat generation of electronic equipment, thus by the dissipating heat of electronic equipment to outside.
The electronic device cover using piezoelectric fan module according to the present utility model is shown in Fig. 5-7.Such as Fig. 5 institutes
Show, piezoelectric fan module 200 according to the present utility model is embedded in the inside of electronic device cover 50, in electronic equipment
Sites of heat generation, to which the heat of electronic equipment be taken away by generating stable air-flow.The air inlet of piezoelectric fan module 200
211, towards the inside of protective case, face electronic equipment, air outlet 221 is arranged in the side opposite with air inlet 211, towards guarantor
The outside of sheath, far from electronic equipment.It is also offered in the air inlet 211 of protective case and 221 corresponding position of air outlet scattered
Hot hole, so that air-flow can flow through piezoelectric fan module 200.
Piezoelectric fan module 200 can be fully embedded in protective case, and on the inner surface of protective case with air inlet
Mouthful corresponding position and position corresponding with air outlet opens up heat emission hole on the outer surface of protective case, heat emission hole can be
With the air inlet of piezoelectric fan module 200 and air outlet size is corresponding is open so that protective case shape is relatively beautiful.
Alternatively it is also possible to open up larger through-hole on the protective sleeve, make periphery and the protective case of piezoelectric fan module 200
Chimeric, in this case, the front surface and rear surface of piezoelectric fan module 200 can be exposed from the front and rear surfaces of protective case
Come.It is however preferred to which piezoelectric fan module 200 is not exposed from the outer surface of protective case, only in the outer surface of protective case
On open up heat emission hole corresponding with air outlet.
Piezoelectric fan module 200 can be powered by the power supply of electronic equipment.Fig. 5 shows piezoelectric fan module
200 examples being powered by electronic equipment.
It can be powered for piezoelectric fan module 200 by electronic equipment by wired mode.Piezoelectric fan module 200 can
To be electrically connected by electric connecting part and electronic equipment.Electric connecting part can be formed as on piezoelectric fan module 200
Pin, be correspondingly provided with interface corresponding with pin on an electronic device.The interior of electronic equipment can be arranged in driving circuit
Portion, for example, being arranged on the printed circuit board of electronic equipment, to provide driving by the power supply of electronic equipment for driving circuit
Voltage, to drive piezoelectric fan module 200.
In addition, driving circuit 70 can be arranged on the protective sleeve, and electricity is carried out by electric connecting part and electronic equipment
Connection, to by wired mode, be powered for piezoelectric fan module 200 using the power supply of electronic equipment.
Can also be wirelessly piezoelectric fan module in the case where driving circuit 70 is arranged on the protective sleeve
200 power supplies.For example, near-field communication (NFC) module 60 is arranged on protective case 50, NFC module 60 can be arranged in electronic equipment
Battery near, produced electricl energy by electromagnetic induction, electric energy be supplied to driving circuit 70, by driving circuit 70 be piezoelectricity wind
It fans module 200 and supplies alternating voltage, to which driving fan blade 230 vibrates.
Driving circuit 70 can be embedded in the box body of piezoelectric fan module 200, can also be embedded in protective case 50, and
It is electrically connected with piezoelectric fan blade 230 by flexible cable 80.
When controller judges that the temperature of some component reaches predetermined value according to the sensing value of sensor, piezoelectricity can be opened
Fan module 200 works, to cool down to corresponding component.
The wind concentration that the fan blade of piezoelectric fan module according to the present utility model generates, directionality is good, speed is fast,
Magnetic leakage free, the defect that the directionality that overcomes conventional fan is poor, wind speed is easy diffusion slowly.
Piezoelectric fan module according to the present utility model can be embedded in the circuit of electronic equipment by modular mode
It on plate or is embedded in the protective case of electronic equipment, to make mounting process simplify.For example, by adhesive tape or spiral shell can be beaten
Piezoelectric fan module is sealed in inside handset shell by the mode of silk, or is hidden and be mounted in mobile phone protective cover, is supplied by NFC
Electricity works.When object for appreciation is played and cell-phone heating is excessive, software starts piezoelectric fan and radiates automatically.
Compared with the radiating mode of the prior art, piezoelectric fan module according to the present utility model occupies little space, can
On the electronic equipment thin suitable for small, thickness, air-out direction can be well controlled, to maximumlly utilize pressure
The wind that blade of electric fan generates radiates to electronic equipment.In addition, piezoelectric fan to electronic equipment without electromagnetic interference, power consumption
It is low, noise is small, long lifespan, dependable performance.
Although being shown and described herein the exemplary embodiment of the utility model, those skilled in the art should manage
Solution, the utility model be not limited to these exemplary embodiments.The spirit and scope for not departing from the utility model the case where
Under, various forms of modifications and variations can be carried out to the utility model, these modifications and variations will fall into the utility model
In protection domain.
Claims (13)
1. a kind of piezoelectric fan module, which is characterized in that the piezoelectric fan module includes：
Box body, box body has interior accommodating space, and air inlet and air outlet are formed on box body；
Piezoelectric fan blade, including support thin plate and be attached to the piezoelectric ceramic piece supported on thin plate；
Electric connecting part supplies operating voltage for being electrically connected to a power source the piezoelectric ceramic piece for the piezoelectric ceramic piece；
The piezoelectric fan blade is located in the box body, and one end is the fixing end being fixedly connected with the box body, and the other end is
The swinging end that can freely swing.
2. piezoelectric fan module as described in claim 1, which is characterized in that the box body include the upper shell that be combined with each other and
Lower housing, the air inlet are formed on the upper shell and/or lower housing, and the air outlet is formed on the lower housing simultaneously
And close to the swinging end of the piezoelectric fan blade.
3. piezoelectric fan module as described in claim 1, which is characterized in that the box body is made of thermal conductive metallic material, institute
The thickness for stating piezoelectric fan blade is 0.1mm~0.5mm, and it is 0.3mm~0.7mm, the thickness of the box body to swing up and down space
For 1.5mm~3.0mm.
4. piezoelectric fan module as claimed in any one of claims 1-3, which is characterized in that the piezoelectric fan module also wraps
Include driving circuit, the driving circuit is arranged in the box body, the driving circuit by the electric connecting part with it is described
Piezoelectric ceramic piece is electrically connected.
5. a kind of electronic equipment, which is characterized in that the electronic equipment further includes pressure as claimed in any one of claims 1-3
Electric fan module, the piezoelectric fan module are mounted on the inside of the electronic equipment.
6. electronic equipment as claimed in claim 5, which is characterized in that the air inlet of the piezoelectric fan module is close to the electricity
Sites of heat generation setting on the printed circuit board of sub- equipment.
7. electronic equipment as claimed in claim 6, which is characterized in that the piezoelectric fan module is mounted on the electronic equipment
Printed circuit board on, the box body of the piezoelectric fan module passes through Heat Conduction Material and connects with the heating position on printed circuit board
It connects.
8. electronic equipment as claimed in claim 7, which is characterized in that the power supply is the power supply of electronic equipment, for driving
On the printed circuit board, the electric connecting part is connected to by driving circuit for the driving circuit setting of piezoelectric fan module
The power supply.
9. electronic equipment as claimed in claim 5, which is characterized in that in shell and the air outlet pair of the electronic equipment
The position answered is provided with ventilation hole.
10. a kind of protective case for electronic equipment, which is characterized in that the protective case is embedded in just like in claim 1-3
Any one of them piezoelectric fan module, position corresponding with the air inlet and air outlet offers on the protective case
Heat emission hole, the air inlet is towards the electronic equipment, and the air outlet is far from the electronic equipment.
11. protective case as claimed in claim 10, which is characterized in that driving circuit is also embedded in the protective case, it is described
Driving circuit is electrically connected by the electric connecting part with the piezoelectric ceramic piece of the piezoelectric fan module, is the piezoelectric ceramics
Piece supplies alternating voltage.
12. protective case as claimed in claim 11, which is characterized in that it is also embedded with near-field communication module in the protective case,
The near-field communication module is electrically connected with the driving circuit, and power supply is provided for the driving circuit.
13. the protective case as described in any one of claim 10-12, which is characterized in that the protective case is additionally provided with institute
State the electrical connection pins that piezoelectric fan module is electrically connected with the electronic equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820260778.XU CN208047118U (en) | 2018-02-14 | 2018-02-14 | Piezoelectric fan module, electronic equipment and protective case with the piezoelectric fan module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820260778.XU CN208047118U (en) | 2018-02-14 | 2018-02-14 | Piezoelectric fan module, electronic equipment and protective case with the piezoelectric fan module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208047118U true CN208047118U (en) | 2018-11-02 |
Family
ID=63949422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820260778.XU Active CN208047118U (en) | 2018-02-14 | 2018-02-14 | Piezoelectric fan module, electronic equipment and protective case with the piezoelectric fan module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208047118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195724A (en) * | 2019-07-05 | 2019-09-03 | 常州威图流体科技有限公司 | A kind of piezoelectric fan, radiator and electronic equipment |
| CN111356325A (en) * | 2018-12-20 | 2020-06-30 | 中车唐山机车车辆有限公司 | Power box |
-
2018
- 2018-02-14 CN CN201820260778.XU patent/CN208047118U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111356325A (en) * | 2018-12-20 | 2020-06-30 | 中车唐山机车车辆有限公司 | Power box |
| CN110195724A (en) * | 2019-07-05 | 2019-09-03 | 常州威图流体科技有限公司 | A kind of piezoelectric fan, radiator and electronic equipment |
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