CN2930175Y - Thin film speaker - Google Patents
Thin film speaker Download PDFInfo
- Publication number
- CN2930175Y CN2930175Y CNU2006201207611U CN200620120761U CN2930175Y CN 2930175 Y CN2930175 Y CN 2930175Y CN U2006201207611 U CNU2006201207611 U CN U2006201207611U CN 200620120761 U CN200620120761 U CN 200620120761U CN 2930175 Y CN2930175 Y CN 2930175Y
- Authority
- CN
- China
- Prior art keywords
- vibration film
- film
- piezoelectric membrane
- speaker
- conductive layer
- 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
- 239000010409 thin film Substances 0.000 title 1
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000004381 surface treatment Methods 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 4
- 239000000057 synthetic resin Substances 0.000 claims abstract description 4
- 239000012780 transparent material Substances 0.000 claims abstract 2
- 239000012528 membrane Substances 0.000 claims description 41
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 2
- 229920001940 conductive polymer Polymers 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/704—Piezoelectric or electrostrictive devices based on piezoelectric or electrostrictive films or coatings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The present invention relates to a film-type audio-speaker comprising a piezoelectric film provided at only part of the entire film-type audio- speaker. This invention provides a film-type audio-speaker comprising a piezoelectric film 2 resulting from a surface treatment, an electrically conductive layer 4 each formed of an electrically conductive polymer or metal layer coated to both surfaces of the piezoelectric film 2, and a terminal 6 electrically connected to the electrically conductive layer 4 while being connected to external device or internal element for use in the driving of the audio-speaker, wherein the piezoelectric film 2 is integrated into a vibrating sheet 10 with no electrically conductive layer coated thereto, by attachment or coating; and the vibrating sheet 10 is formed of either a synthetic resin film, a paper sheet, or a vibrating plate, with pictures, figures, or ornamental letters being printed on the vibrating sheet 10, or the vibrating sheet 10 being made of a transparent material which allows images on the underside thereof to be clearly visible through the vibrating sheet 10.
Description
Technical field
The utility model relates to a kind of wafer speaker, more specifically relate to a kind of wafer speaker and wherein only the vibration plane of some constitute by piezoelectric membrane, thereby can reduce production costs, price that can also be cheap is suitable for makes banner, display with outer cover or other close articles for use.
Background technology
Traditional loud speaker form is a cone loudspeaker.Cone loudspeaker comprises the cone and the resonant chamber that contain vibrating reed.Exist volume to reach the big problem of weight greatly in the traditional loud speaker of this kind.Therefore, developed and occurred a kind of loud speaker of thin and light film morphology recently.This wafer speaker is made of a slice has a Kynoar of piezoelectricity through plasma coated material or this piezoelectric membrane of other resin film.Then apply layer of metal or other conductive material on this piezoelectric membrane.When providing audio signal to above-mentioned wafer speaker, thereby this piezoelectric membrane is sounded because of producing vibration.At this, this piezoelectric membrane must provide splicing ear so that audio signal can be provided on this wafer speaker.In the time of if necessary, one can be used as the loudspeaker of amplification of volume and the transformer of a cooperation can connect this piezoelectric membrane.
But above-mentioned traditional wafer speaker all exists because of its integral body and is made of the problem that causes its production cost high piezoelectric membrane.Moreover because metal or the electroconductive polymer layer on this piezoelectric membrane of being coated in, there is the difficulty of printing opacity in the traditional wafer speaker of this kind thereby is not suitable for use in the outer cover that display is used.
The utility model content
The utility model proposes at the problems referred to above, its purpose is a kind of wafer speaker is provided and wherein comprises the piezoelectric membrane that a slice and multi-disc form through surface treatment, the a plurality of conductive layers that on above-mentioned each piezoelectric membrane, pass through coated with conductive macromolecule layer or metal level and draw, and it is one or more as the conducting terminal that is connected with these conductive layers, thereby this conducting terminal then with this wafer speaker beyond instrument or inner assembly be connected and drive this loud speaker, this piezoelectric membrane then combines with a slice vibration film, and does not apply or enclose one deck conductive layer on this vibration film; This vibration film is then formed by a slice film of synthetic resin, and on this vibration film, be printed with photo, picture, pattern or literal, thereby and this vibration Bao Yike constitute by material transparent and can have an X-rayed its back face image.
According to another feature of the present utility model, wafer speaker is provided, wherein said vibration film can combine with this piezoelectric membrane in the mode of enclosing or applying more than different position, two places on described piezoelectric membrane.
According to another feature of the present utility model, wafer speaker is provided, wherein said vibration film can be made of and described piezoelectric membrane can be connected with this vibration film to connect airtight fillet in contact point of many mistakes an oscillating plate.
Description of drawings
Fig. 1 is the plane graph of first execution mode of the present utility model.
Fig. 2 is the sectional view of first execution mode of the present utility model.
Fig. 3 is the plane graph of other execution modes of the present utility model.
Fig. 4 is the sectional view of other execution modes of the present utility model.
Embodiment
Present accompanying drawings each most preferred embodiment of the present utility model.As shown in Figures 1 and 2, this wafer speaker comprises a plurality of one group piezoelectric membrane 2 and conductive layer 4.Thereby each sheet piezoelectric membrane 2 is the surfaces that form its piezoelectricity via Surface Treatment with Plasma.This conductive film 4 is that the surface by this piezoelectric membrane 2 is formed through coated with conductive macromolecule layer or metal level.With wafer speaker difference traditionally little be that this conductive layer 4 provides portion of terminal 6 with connecting the external device that drives loud speaker.Identifiablely be, contact terminal portion 6 can connect this inside loudspeakers assembly in order to driving this loud speaker, as the transformer of loudspeaker, cooperation, audio signal generator etc., thereby constitutes incorporate sound system.
According to the utility model, this piezoelectric membrane 2 be coated in this sheet vibration film on a slice vibration film 10 area then than this piezoelectric membrane 2 for big.The design of this vibration film 10 is to allow its while self of transmitting the vibration that is caused by this piezoelectric membrane 2 also vibrate.For reaching effect so far, this vibration film 10 is best suited for being made of synthetic resin.But the utility model is not so limited.Another selection is to use the oscillating plate of paper or relative thin to form vibration film, must be to cause its vibration by the vibration of this piezoelectric membrane 2 but condition is this film.Simultaneously, the method that piezoelectric membrane 2 and this vibration film 10 are fused is that this piezoelectric membrane 2 is coated on this vibration film 10 closely.The another kind of method that connects is to use the splicing tape adhesives, and this piezoelectric membrane 2 closely is connected with vibration film 10.
Use this structure, the vibration that is caused by piezoelectric membrane 2 just can directly be sent to vibration film 10, allows vibration film 10 vibrations.As a result, thus vibration takes place for whole vibration film 10 constitutes a wafer speaker that area is large.At this, it should be noted that this vibration film 10 is to be made of and this film does not obtain surface treatment or conductive layer coating processing to form piezoelectricity general film.Use this vibration film 10 can lower the production cost of large area film loud speaker.Moreover according to the utility model, photo, picture, pattern and literal etc. all can be printed onto on this vibration film 10.At this, this wafer speaker can be used for as slogan banner, poster or other displaying as advertising media, thereby a cheap advertising media that possesses loudspeaker function is provided.The reason that photo, picture, pattern and literal etc. are printed on this vibration film 10 is because when comparing with piezoelectric membrane through coated with conductive layer 4, and this vibration film 10 can provide more clear and printing effect clearly.
Another selection is when this vibration film 10 a slice transparent membrane and when any photo, picture, pattern, literal or approximate object are not gone up in printing, can coming through this transparent membrane perspective in its back face image just.At this, this wafer speaker just is suitable for the cover make photo frame, clock outer cover, flat-panel screens cover etc., and the function of sound generating is provided for above-mentioned object simultaneously.
According to the utility model, the piezoelectric membranes 2 of crossing a slice can be placed on the position of crossing two on this vibration film 10 more more.This measure can allow this wafer speaker that stereo sound is provided and its volume is controlled in the vibration that utilizes the different film of oscillatory property to cause.
Fig. 3 and Fig. 4 are the pie graphs of another embodiment of this wafer speaker in the utility model.As this Fig. 3 and shown in Figure 4, a plurality of piezoelectric membranes 2 is to be media to connect airtight fillet 12, makes at a plurality of connecting portions 14 and vibration film 10 being connected.At this, the design of this fillet 12 is that it is contacted closely with this piezoelectric membrane 2 and this vibration film 10.This structure provides a kind of being applicable to connect a kind of method by the thick slightly vibration film that oscillating plate constituted of a slice.Whereby, even this piezoelectric membrane 2 and this vibration film 10 use materials such as bolts or rivet when some being connected mutually, this piezoelectric membrane 2 and this vibration film 10 still can pass through fillet 12 and contact closely mutually.The method can be guaranteed to be sent to vibration film 10 by the vibrational energy of this piezoelectric membrane 2, thereby allows that this vibration film 10 produces sound effectively in vibration.
According to above-mentioned explanation, the wafer speaker that the utility model provides has following advantage.First, according to the utility model, a kind of wafer speaker, contain through applying one deck conductive layer in its surperficial vibration film, this conductive layer then is enclosing or coating method combines with a slice vibration film, and this vibration film can be made of general nonconducting film, paper or oscillating plate.This structure can reduce the production cost of this wafer speaker.The second, the vibration film in the utility model be by with this piezoelectric membrane mutually the higher material of reduced transparency constituted.At this, can allow that design that photo, picture, pattern and literal or other advertisement are used clearly reaches to be printed on brightly on this vibration film.At this, the wafer speaker in the utility model can should be used as slogan banner, poster or other similar object effectively.The 3rd, the wafer speaker in the utility model can allow because of its transparent vibration film image from its bottom clearly perspective come, thereby can be used as photo mask, clock outer cover, flat-panel screens cover or other similar object.This utility model provides a kind of relatively wafer speaker of high-quality.At last, when the piezoelectric membrane of with crossing a slice is placed on this vibration film minimum two different positions more, wafer speaker in the utility model just can provide stereo sound, and owing to use the film of different oscillatory properties, thereby the possibility that can control volume is provided.
Claims (3)
1. wafer speaker, wherein comprise the piezoelectric membrane (2) that forms via surface treatment, at this piezoelectric membrane (2) thus the conductive layer (4) of any side formation behind coated with conductive macromolecule layer or metal level, an and terminal (6) that can conduct electricity and be connected with this conductive layer (4), this conductive layer (4) then drives this loud speaker and is positioned at instrument beyond this loud speaker or inner assembly is connected with can be used as, and it is characterized in that: this piezoelectric membrane (2) and the vibration film that does not have the coated with conductive layer to shake (10) are to adhere to or coating method combines; And this vibration film (10) is made of film of synthetic resin, paper or oscillating plate; Photo, picture, pattern and literal then can be printed on this vibration film (10) or because this vibration film (10) thus constituted by transparent material and can be had an X-rayed its back face image.
2. wafer speaker according to claim 1 is characterized in that: described piezoelectric membrane (2) is to be combined as a whole in the mode of adhering to or apply at least two different positions of described vibration film (10).
3. wafer speaker according to claim 2 is characterized in that: described vibration film (10) is made of an oscillating plate; And this piezoelectric membrane (2) and this vibration film (10) are in carrying out multiple spot and be connected by connecting airtight fillet (14) more than one link position (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050061574A KR100781329B1 (en) | 2005-07-08 | 2005-07-08 | Film speaker |
| KR1020050061574 | 2005-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2930175Y true CN2930175Y (en) | 2007-08-01 |
Family
ID=37598133
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201207611U Expired - Fee Related CN2930175Y (en) | 2005-07-08 | 2006-06-22 | Thin film speaker |
| CNA2006100900693A Pending CN1893738A (en) | 2005-07-08 | 2006-06-22 | Film-type audio-speaker |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100900693A Pending CN1893738A (en) | 2005-07-08 | 2006-06-22 | Film-type audio-speaker |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100781329B1 (en) |
| CN (2) | CN2930175Y (en) |
| WO (1) | WO2007007942A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535053A (en) * | 2011-05-17 | 2014-01-22 | 株式会社村田制作所 | Planar speaker and AV device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101282058B1 (en) | 2012-03-29 | 2013-07-05 | 주식회사 위드조이 | Non-directional speaker |
| CN102821345B (en) * | 2012-08-15 | 2014-08-13 | 同济大学 | Film speaker and production method thereof |
| CN105072549A (en) * | 2015-07-24 | 2015-11-18 | 广东欧珀移动通信有限公司 | Bone conduction device and mobile phone with same |
| CN105246011A (en) * | 2015-11-02 | 2016-01-13 | 李崇 | Photo frame with sound box function |
| CN105246009A (en) * | 2015-11-02 | 2016-01-13 | 李崇 | Curved sound player having projection display function |
| US20230092392A1 (en) * | 2021-09-21 | 2023-03-23 | Solaria Systems, Inc. | Therapeutic environment sensing and/or altering device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2477822A1 (en) * | 1980-03-04 | 1981-09-11 | Thomson Csf | ACTIVE SUSPENSION ELECTROMECHANICAL TRANSDUCER AND METHOD FOR MANUFACTURING THE SAME |
| JPH0416558Y2 (en) * | 1986-09-16 | 1992-04-14 | ||
| JPS63176098A (en) * | 1987-01-16 | 1988-07-20 | Foster Denki Kk | Compound speaker |
| JPH05122793A (en) * | 1991-10-25 | 1993-05-18 | Murata Mfg Co Ltd | Piezo-electric speaker |
| JP4683367B2 (en) | 2000-08-04 | 2011-05-18 | ヤマハ株式会社 | Linear vibrator and speaker equipped with the vibrator |
| KR100573729B1 (en) * | 2004-05-31 | 2006-04-24 | (주)아이블포토닉스 | Piezoelectric panel speaker using piezoelectric single crystal |
| MX2019008837A (en) * | 2017-06-23 | 2019-09-09 | Lg Electronics Inc | Method and apparatus for performing access barring check. |
-
2005
- 2005-07-08 KR KR1020050061574A patent/KR100781329B1/en not_active IP Right Cessation
-
2006
- 2006-01-23 WO PCT/KR2006/000253 patent/WO2007007942A1/en active Application Filing
- 2006-06-22 CN CNU2006201207611U patent/CN2930175Y/en not_active Expired - Fee Related
- 2006-06-22 CN CNA2006100900693A patent/CN1893738A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535053A (en) * | 2011-05-17 | 2014-01-22 | 株式会社村田制作所 | Planar speaker and AV device |
| US9332353B2 (en) | 2011-05-17 | 2016-05-03 | Murata Manufacturing Co., Ltd. | Plane-type speaker and AV apparatus |
| CN103535053B (en) * | 2011-05-17 | 2017-03-29 | 株式会社村田制作所 | Plane-type loudspeaker and AV equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100781329B1 (en) | 2007-11-30 |
| CN1893738A (en) | 2007-01-10 |
| KR20070006328A (en) | 2007-01-11 |
| WO2007007942A1 (en) | 2007-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20110622 |