CN207010973U - Polypropylene piezoelectric membrane loudspeaker arrangement - Google Patents
Polypropylene piezoelectric membrane loudspeaker arrangement Download PDFInfo
- Publication number
- CN207010973U CN207010973U CN201720978576.4U CN201720978576U CN207010973U CN 207010973 U CN207010973 U CN 207010973U CN 201720978576 U CN201720978576 U CN 201720978576U CN 207010973 U CN207010973 U CN 207010973U
- Authority
- CN
- China
- Prior art keywords
- piezoelectric membrane
- polypropylene
- polypropylene piezoelectric
- generator
- loudspeaker arrangement
- 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.)
- Expired - Fee Related
Links
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 97
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 96
- 239000012528 membrane Substances 0.000 title claims abstract description 93
- -1 Polypropylene Polymers 0.000 title claims abstract description 91
- 238000005187 foaming Methods 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010422 painting Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, including, at least one polypropylene piezoelectric membrane generator；Polypropylene piezoelectric membrane generator includes the first foaming layer, positive electrode layer, polypropylene piezoelectric membrane, positive electrode layer and the second foaming layer；Positive electrode layer is arranged on the top of polypropylene piezoelectric membrane, and the first foaming layer is arranged on the top of positive electrode layer；Positive electrode layer is arranged on the lower section of polypropylene piezoelectric membrane, and the second foaming layer is arranged on the lower section of positive electrode layer.The input and output feature with reference to polypropylene piezoelectric membrane is the advantage is that, is raised one's voice using level pressure power amplifier driving polypropylene piezoelectric membrane；Simple in construction, user can paste painting and calligraphy in polypropylene piezoelectric membrane loudspeaker arrangement according to the demand of itself or photographic work, the design vertically to resonate bring good orientation sounding effect.
Description
Technical field
A kind of loudspeaker arrangement is the utility model is related to, more particularly to a kind of polypropylene piezoelectric membrane loudspeaker arrangement.
Background technology
At present, the electric current drive the speaker sounding that in the market generally uses, the sound very little sent, and frequency domain are corresponding not
1 audio region for arriving 20KHz can be covered.Moreover, as shown in figure 1, poor performance occurs for the orientation of existing loudspeaker.
Utility model content
A kind of polypropylene piezoelectric membrane loudspeaker arrangement of offer of the present utility model, solves above-mentioned technical barrier, to overcome
The defects of prior art.
The utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, including, at least one polypropylene piezoelectric membrane
Generator；Polypropylene piezoelectric membrane generator include the first foaming layer, positive electrode layer, polypropylene piezoelectric membrane, positive electrode layer and
Second foaming layer；Positive electrode layer is arranged on the top of polypropylene piezoelectric membrane, and the first foaming layer is arranged on the top of positive electrode layer；
Positive electrode layer is arranged on the lower section of polypropylene piezoelectric membrane, and the second foaming layer is arranged on the lower section of positive electrode layer.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Also include power amplifier；Power amplifier drives polypropylene piezoelectric membrane generator sounding.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Power amplifier is level pressure type power amplifier.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Power amplifier includes voltage generator；Voltage generator drives polypropylene piezoelectric membrane generator sounding.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Power amplifier also includes transformer；The input of transformer is connected with voltage generator；The output of transformer and polypropylene piezoelectricity are thin
Film generator connects.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Also include fixed frame；Polypropylene piezoelectric membrane generator is arranged on fixed frame；Power amplifier sets polypropylene piezoelectricity thin
The rear of film generator.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Polypropylene piezoelectric membrane generator is several；Serial or parallel connection between polypropylene piezoelectric membrane generator.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Polypropylene piezoelectric membrane generator driving voltage is 50V to 3000V.
Further, the utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, can also have the feature that：
Polypropylene piezoelectric membrane employs surface and uniformly integrally covers aluminium electrode processing.
The utility model provides a kind of polypropylene piezoelectric membrane loudspeaker arrangement, passes through electrode according to polypropylene material (i.e. PP)
Just there is piezo-electric effect after changing, and have good frequency domain response 0.1 to 40KHz；With reference to the defeated of polypropylene piezoelectric membrane
Enter output characteristic, raised one's voice using level pressure power amplifier driving polypropylene piezoelectric membrane, and it is thin to have devised a kind of flat board polypropylene piezoelectricity
Film loudspeaker arrangement；It is simple in construction, user can according to the demand of itself polypropylene piezoelectric membrane loudspeaker arrangement paste painting and calligraphy or
Photographic work, the design vertically to resonate bring good orientation sounding effect.
Brief description of the drawings
Fig. 1 is the sounding effect figure of existing loudspeaker.
Fig. 2 is the structure chart of polypropylene piezoelectric membrane loudspeaker arrangement of the present utility model.
Fig. 3 is the structure chart of polypropylene piezoelectric membrane generator of the present utility model.
Fig. 4 is the power amplifier annexation figure of polypropylene piezoelectric membrane loudspeaker arrangement of the present utility model.
Fig. 5 is the sounding effect figure of polypropylene piezoelectric membrane loudspeaker arrangement of the present utility model.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.
Fig. 2 is the structure chart of polypropylene piezoelectric membrane loudspeaker arrangement of the present utility model.
As shown in Fig. 2 polypropylene piezoelectric membrane loudspeaker arrangement includes：One polypropylene piezoelectric membrane generator 100, power amplifier
Circuit 200 and fixed frame 300.
In the present embodiment, fixed frame 300 is rectangle, the shape and fixed frame of polypropylene piezoelectric membrane generator 100
The shape of frame 300 matches, and is fixed on fixed frame 300.Fixed frame 300 as needed can be arranged to other arbitrary shapes
And size, polypropylene piezoelectric membrane generator 100 also change therewith.Power amplifier 200 sets polypropylene piezoelectric membrane generator
100 rear, sheltered from by polypropylene piezoelectric membrane generator 200.Power amplifier 200 passes through wire and polypropylene piezoelectric membrane
Generator 100 connects, the vibration sounding of driving polypropylene piezoelectric membrane generator 100.
Fig. 3 is the structure chart of polypropylene piezoelectric membrane generator of the present utility model.
As shown in figure 3, polypropylene piezoelectric membrane generator 100 includes：First foaming:110th, positive electrode layer 120, polypropylene
Piezoelectric membrane 130, the foaming layer 150 of positive electrode layer 140 and second.
Positive electrode layer 120 is arranged on the top of polypropylene piezoelectric membrane 130.First foaming layer 110 is arranged on positive electrode layer
120 top.Positive electrode layer 140 is arranged on the lower section of polypropylene piezoelectric membrane 130, and the second foaming layer 150 is arranged on negative electrode
The lower section of layer 140.Polypropylene piezoelectric membrane employs surface and uniformly integrally covers aluminium electrode processing；It is effectively utilized piezoelectric membrane
The inverse piezoelectric effect of vertical direction, and the inverse piezoelectric effect in on-plane surface direction is effectively prevent, this design method makes this raise one's voice
Device has certain acoustic bearing sending performance.The expanded material of soft structure, it is low frequency sound effect by part medium-high frequency sound attenuating, and it is right
Original low frequency sound effect is undamped, adds the low-frequency effect of piezoelectric speaker.In general, polypropylene piezoelectric membrane generator
100 are driven enough using 50V voltage, can lift driving voltage to strengthen sounding effect.Polypropylene piezoelectric membrane generator,
Each layer thicknesses are impartial, are cut to plane fitting.Such a applying method causes part integrally to vibrate in vertical direction, effectively will
Sound transmits to vertical direction.
The quantity of polypropylene piezoelectric membrane generator 100 in the present embodiment is 1, in order to increase volume, can be introduced
Multiple polypropylene piezoelectric membrane generators 100, can connect access, in parallel can also access, both approaches can be at double
Ground increases volume.
Fig. 4 is the power amplifier annexation figure of polypropylene piezoelectric membrane loudspeaker arrangement of the present utility model.
As shown in figure 4, power amplifier 200 is level pressure type power amplifier, there is provided the voltage of a driving polypropylene piezoelectric membrane.Work(
Electric discharge road 200 includes：Voltage generator 210 and transformer 220.The input that voltage generator 210 passes through wire and transformer 220
End connection.The output end of transformer 220 is connected by wire with polypropylene piezoelectric membrane generator 100.Power amplifier can be with
With the necessary power supply apparatus such as switch, power supply indicator.Power amplifier output voltage is 50 to sufficiently large to be formed between 3000V
Voltage drive polypropylene piezoelectric membrane vibration sounding.Transformer 220 is used for increasing polypropylene piezoelectric membrane generator 100
Input voltage is to improve volume, if voltage is enough, can cancel transformer 220, and voltage generator 210 is directly and polypropylene
Piezoelectric membrane generator 100 connects and drives its vibration sounding.
Fig. 5 is the sounding effect figure of polypropylene piezoelectric membrane loudspeaker arrangement of the present utility model.
As shown in figure 5, the effective of polypropylene piezoelectric membrane loudspeaker arrangement sends out sound to vertical direction, for
Audience in front of device.It is particularly suitable for various exhibitions, avoids various showpieces from introducing sound and influence each other.
Display only describes principal character of the present utility model and inventive point above.Those skilled in the art should
Solution, the utility model are not restricted to the described embodiments.On the premise of present invention point and protection point range is not departed from, this practicality
New also to have this change, these changes and improvements are fallen within the utility model requires protection scope.The utility model
Claimed scope is limited by appended claims and its equivalent.
Claims (9)
- A kind of 1. polypropylene piezoelectric membrane loudspeaker arrangement, it is characterised in that：Including at least one polypropylene piezoelectric membrane occurs Device；Wherein, the polypropylene piezoelectric membrane generator includes the first foaming layer, positive electrode layer, polypropylene piezoelectric membrane, negative electricity Pole layer and the second foaming layer；The positive electrode layer is arranged on the top of the polypropylene piezoelectric membrane, and first foaming layer is arranged on the positive electrode The top of layer；The positive electrode layer is arranged on the lower section of the polypropylene piezoelectric membrane, and second foaming layer is arranged on the negative electrode The lower section of layer.
- 2. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 1, it is characterised in that：Also include power amplifier；It is described Power amplifier drives polypropylene piezoelectric membrane generator sounding.
- 3. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 2, it is characterised in that：Wherein, the power amplifier is level pressure type power amplifier.
- 4. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 2, it is characterised in that：Wherein, the power amplifier includes voltage generator；The voltage generator drives the polypropylene piezoelectric membrane to occur Device sounding.
- 5. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 4, it is characterised in that：Wherein, the power amplifier also includes transformer；The input of the transformer is connected with the voltage generator；The change The output of depressor is connected with the polypropylene piezoelectric membrane generator.
- 6. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 2, it is characterised in that：Also include fixed frame；The polypropylene piezoelectric membrane generator is arranged on the fixed frame；The power amplifier The rear of the polypropylene piezoelectric membrane generator is set.
- 7. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 1, it is characterised in that：Wherein, the polypropylene piezoelectric membrane generator is several；Between the polypropylene piezoelectric membrane generator series connection or It is in parallel.
- 8. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 1, it is characterised in that：Wherein, the polypropylene piezoelectric membrane generator driving voltage is 50V to 3000V.
- 9. polypropylene piezoelectric membrane loudspeaker arrangement as claimed in claim 1, it is characterised in that：Wherein, the polypropylene piezoelectric membrane employ surface uniformly integrally cover aluminium electrode processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720978576.4U CN207010973U (en) | 2017-08-07 | 2017-08-07 | Polypropylene piezoelectric membrane loudspeaker arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720978576.4U CN207010973U (en) | 2017-08-07 | 2017-08-07 | Polypropylene piezoelectric membrane loudspeaker arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207010973U true CN207010973U (en) | 2018-02-13 |
Family
ID=61457970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720978576.4U Expired - Fee Related CN207010973U (en) | 2017-08-07 | 2017-08-07 | Polypropylene piezoelectric membrane loudspeaker arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207010973U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196650A (en) * | 2018-02-27 | 2019-09-03 | 深圳富泰宏精密工业有限公司 | The electronic device for touching feedback and sound output is realized by piezoelectric-array |
| CN110572756A (en) * | 2019-09-11 | 2019-12-13 | 京东方科技集团股份有限公司 | Directional film transducer, preparation method thereof and loudspeaker |
| CN110636420A (en) * | 2019-09-25 | 2019-12-31 | 京东方科技集团股份有限公司 | Film loudspeaker, preparation method of film loudspeaker and electronic equipment |
| WO2023283784A1 (en) * | 2021-07-12 | 2023-01-19 | 天津大学 | Piezoelectric mems loudspeaker system |
-
2017
- 2017-08-07 CN CN201720978576.4U patent/CN207010973U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196650A (en) * | 2018-02-27 | 2019-09-03 | 深圳富泰宏精密工业有限公司 | The electronic device for touching feedback and sound output is realized by piezoelectric-array |
| CN110572756A (en) * | 2019-09-11 | 2019-12-13 | 京东方科技集团股份有限公司 | Directional film transducer, preparation method thereof and loudspeaker |
| CN110636420A (en) * | 2019-09-25 | 2019-12-31 | 京东方科技集团股份有限公司 | Film loudspeaker, preparation method of film loudspeaker and electronic equipment |
| CN110636420B (en) * | 2019-09-25 | 2021-02-09 | 京东方科技集团股份有限公司 | Film loudspeaker, preparation method of film loudspeaker and electronic equipment |
| WO2023283784A1 (en) * | 2021-07-12 | 2023-01-19 | 天津大学 | Piezoelectric mems loudspeaker system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |