EP1424872A1 - Gerät mit Biegewellenlautsprecher und Ankopplungselement für externe Schallwiedergabeflächen - Google Patents
Gerät mit Biegewellenlautsprecher und Ankopplungselement für externe Schallwiedergabeflächen Download PDFInfo
- Publication number
- EP1424872A1 EP1424872A1 EP02026706A EP02026706A EP1424872A1 EP 1424872 A1 EP1424872 A1 EP 1424872A1 EP 02026706 A EP02026706 A EP 02026706A EP 02026706 A EP02026706 A EP 02026706A EP 1424872 A1 EP1424872 A1 EP 1424872A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- coupling element
- shaped element
- loudspeaker
- sound reproduction
- 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.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
Definitions
- the invention relates to a device, for. B. a mobile Communication terminal or a sound reproducing device, with a flexible wave speaker, which is a plate-shaped Element and an actuator for stimulating Bending waves in the plate-shaped element.
- the equipment with flexible shaft speakers from Communication terminals takes place in the course of an improvement of Sound reproduction quality of these devices.
- mobile phones as mobile communication terminals known a protective window over a display device of the To use mobile phones as flexible wave speakers, whereby the protective window as a plate-shaped element with the help of Piezo actuators excited to bend vibrations becomes.
- the invention is based on the object devices equipped with a flexible shaft speaker in this way continue to develop that improved Sound reproduction quality results.
- a cell phone in the automotive field, can be used as a mobile communication terminal with the coupling element be brought into contact with a dashboard, whereby the dashboard as a sound reproduction surface in the area a point of contact with the coupling element of the mobile communication terminal for bending vibrations is excited.
- the coupling element can directly with the Actuator connected, in which case that plate-shaped element of the bending wave loudspeaker parallel is switched to an external sound reproduction surface, which excited to bending vibrations via the coupling element becomes.
- the coupling element over the plate-shaped element of the bending wave loudspeaker is connected to the actuator. This can be done Coupling element on the plate-shaped element in essentially rigidly attached so that it Vibration movements of the actuator follow that directly the plate-shaped element and indirectly one excites external circuit playback surface.
- this can plate-shaped element of the device from a display window a mobile communication terminal are formed.
- the plate-shaped element of one Lid is formed, for example a lid of a Accumulator compartment of the mobile communication terminal.
- the plate-shaped element is a as rectangular as possible and of considerable size should.
- the coupling element preferably has a device for Create an essentially rigid connection with one outer sound reproduction surface.
- the goal is one transmission of the vibrational movements as efficiently as possible of the actuator on the external To allow sound reproduction surface.
- Examples of that Device for creating the essentially rigid Connection between the coupling element and the outer Sound reproduction surface are brackets that stand out also support on the sound reproduction surface to be excited can, suction cups at a free end of the Coupling element and adhesive.
- the contact element is preferably a contact plunger formed, the movement of the actuator transmits an external sound reproduction surface.
- the invention generally has the advantage that a coupled external sound reproduction surface is not a special one Boundary conditions must suffice, it must neither be transparent be like this used for as a flex shaft speaker Display devices of mobile phones still apply strict requirements for the protection of an LCD display mobile communication terminal are met.
- a Combination of one device with one Bending wave speaker which is a plate-shaped element and an actuator for excitation of bending waves in the has plate-shaped element, and one Coupling element that to form an essentially rigid connection with the plate-shaped element is trained.
- the prerequisites are created for a device of Type described above for coupling to an external To prepare the sound reproduction surface. For this purpose it will Coupling element with the plate-shaped element of the Device connected.
- Figure 1 shows an example of a with a Bending shaft speaker equipped device a mobile phone 1, which is equipped with a flexible shaft loudspeaker.
- the flexible shaft loudspeaker is formed by a cover 2 a battery compartment of the mobile phone 1.
- the mobile phone 1 is by means of a bracket 3 on one Resonance plate 4 brought to rest, with a contact plunger 5 as a coupling element with the resonance plate 4 in is essentially rigidly connected.
- the resonance plate 4 which is also used as a resonance body can be referred to, for example, one Section of a dashboard within a Act motor vehicle.
- the resonance plate 4 of a Section of a motor vehicle door trim or Probe aperture is formed.
- the soundboard 4 in other items is integrated, taking multifunctional clothing as an example is to be mentioned in which a flat structure than that Soundboard 4 can be integrated.
- the flexible shaft loudspeaker can also be part of a housing a base station for cordless calls be, with a footprint for the base station Soundboard 4 can form.
- FIG. 2 now shows in detail how one Coupling between an actuator 7 for excitation a plate-shaped element 8 - the actuating element 7 and the plate-shaped element 8 together form the Bending shaft loudspeaker - to the external resonance plate 4 is accomplished.
- a moving section of the Actuator 7, which is usually a piezo exciter acts directly on the plate-shaped element 8 for the excitation of bending vibrations on.
- On the plate-shaped element 8, which is in the illustrated embodiment around the lid 2 of the Accumulator compartment of the mobile phone 1 is on his with respect to the cell phone 1 outer side of the Contact plunger 5 attached, for example glued, namely in the area of an action point of the actuating element 7. This ensures that movement of the Actuator 7 as directly as possible from that Contact plunger 5 can be forwarded.
- the contact plunger 5, for a cheap energy transfer to the resonance plate 4 consist of a rigid material should be essentially rigid with its outer side the external resonance plate 4 attached.
- a clamp connection between the Contact plunger 5 and the external resonance plate 4 are provided his.
- the Soundboard 4 also directly with the actuator 7, wherein then in the housing of the mobile phone 1 a suitable recess is to be provided through which a Contact element passes through that on one side with the actuator 7 and on the other hand with the Soundboard 4 is essentially rigidly connected.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
Description
- Figur 1
- eine Seitenansicht eines mobilen Kommunikationsendgeräts, das mit einem Kontaktstößel zur Ankopplung an eine externe Resonanzplatte ausgebildet ist und
- Figur 2
- eine Detailansicht der Darstellung von Figur 1 im Bereich des Kontaktstößels.
Claims (11)
- Gerät mit einem Biegewellenlautsprecher, der ein plattenförmiges Element (8) und ein Betätigungselement (7) zur Anregung von Biegewellen in dem plattenförmigen Element (8) aufweist,
dadurch gekennzeichnet, dass das Betätigungselement (7) mit einem Ankopplungselement (5) verbunden ist, das von einem Gehäuse des Gerätes aus vorsteht und Bewegungen des Betätigungselements (7) folgt. - Gerät nach Anspruch 1,
dadurch gekennzeichnet, dass das Ankopplungselement (5) unmittelbar mit dem Betätigungselement (7) verbunden ist. - Gerät nach Anspruch 1,
dadurch gekennzeichnet, dass das Ankopplungselement (5) über das plattenförmige Element (8) mit dem Betätigungselement (7) verbunden ist. - Gerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das plattenförmige Element (8) von einem Anzeigefenster des Gerätes gebildet wird. - Gerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das plattenförmige Element (8) von einem Deckel (2) eines Akkumulatorfachs des Gerätes gebildet wird. - Gerät nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass das Ankopplungselement (5) eine Einrichtung zum Schaffen einer im wesentlichen starren Verbindung mit einer äußeren Schallwiedergabefläche (4) aufweist. - Gerät nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass das Ankopplungselement (5) als Kontaktstößel ausgebildet ist. - Gerät nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass das Gerät als mobiles Kommunikationsendgerät ausgebildet ist. - Gerät nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass das Gerät als tragbare Schallwiedergabevorrichtung ausgebildet ist. - Kombination aus einem Gerät mit einem Biegewellenlautsprecher, der ein plattenförmiges Element (8) und ein Betätigungselement (7) zur Anregung von Biegewellen in dem plattenförmigen Element (8) aufweist,
und einem Ankopplungselement (5), das zur Ausbildung einer im wesentlichen starren Verbindung mit dem plattenförmigen Element (8) ausgebildet ist. - Kombination nach Anspruch 10, bei der das Ankopplungselement (5) einer Einrichtung zum Schaffen einer im wesentlichen starren Verbindung mit einer äußeren Schallwiedergabefläche (4) aufweist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02026706A EP1424872A1 (de) | 2002-11-29 | 2002-11-29 | Gerät mit Biegewellenlautsprecher und Ankopplungselement für externe Schallwiedergabeflächen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02026706A EP1424872A1 (de) | 2002-11-29 | 2002-11-29 | Gerät mit Biegewellenlautsprecher und Ankopplungselement für externe Schallwiedergabeflächen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1424872A1 true EP1424872A1 (de) | 2004-06-02 |
Family
ID=32241317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02026706A Withdrawn EP1424872A1 (de) | 2002-11-29 | 2002-11-29 | Gerät mit Biegewellenlautsprecher und Ankopplungselement für externe Schallwiedergabeflächen |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1424872A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008090077A1 (de) * | 2007-01-22 | 2008-07-31 | Siemens Aktiengesellschaft | Flächenlautsprecher sowie verfahren zur einstellung des schwingverhaltens eines schwingsystems |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000069212A1 (en) * | 1999-04-22 | 2000-11-16 | New Transducers Limited | Small electronic articles for personal use |
| WO2001082648A2 (en) * | 2000-04-20 | 2001-11-01 | New Transducers Limited | Portable communications equipment |
| WO2002051201A2 (en) * | 2000-12-20 | 2002-06-27 | New Transducers Limited | Multi-functional vibro-acoustic device |
-
2002
- 2002-11-29 EP EP02026706A patent/EP1424872A1/de not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000069212A1 (en) * | 1999-04-22 | 2000-11-16 | New Transducers Limited | Small electronic articles for personal use |
| WO2001082648A2 (en) * | 2000-04-20 | 2001-11-01 | New Transducers Limited | Portable communications equipment |
| WO2002051201A2 (en) * | 2000-12-20 | 2002-06-27 | New Transducers Limited | Multi-functional vibro-acoustic device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008090077A1 (de) * | 2007-01-22 | 2008-07-31 | Siemens Aktiengesellschaft | Flächenlautsprecher sowie verfahren zur einstellung des schwingverhaltens eines schwingsystems |
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Owner name: BENQ MOBILE GMBH & CO. OHG |
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Owner name: PALM, INC. |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
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