CN101297590A - Improvements to audio devices - Google Patents

Improvements to audio devices Download PDF

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Publication number
CN101297590A
CN101297590A CNA200680039324XA CN200680039324A CN101297590A CN 101297590 A CN101297590 A CN 101297590A CN A200680039324X A CNA200680039324X A CN A200680039324XA CN 200680039324 A CN200680039324 A CN 200680039324A CN 101297590 A CN101297590 A CN 101297590A
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CN
China
Prior art keywords
electronic equipment
acoustic radiator
outer enclosure
voice coil
loudspeaker
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CNA200680039324XA
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Chinese (zh)
Inventor
约迪·M·弗瑞格拉
雷内·梅因哈德·温特
皮优士·戈尔
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SFX TECHNOLOGIES Ltd
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SFX TECHNOLOGIES Ltd
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Publication of CN101297590A publication Critical patent/CN101297590A/en
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Abstract

An electronic device having an audio function and its loudspeaker arrangement are described. The electronic device comprises an exterior housing, an acoustic transducer and an acoustic radiator forming a part of the exterior housing of the electronic device. In one embodiment, the exterior housing undergoes pis tonic movement and is provided with hydrogel pads to couple an acoustic signal to an auxiliary surface, which then vibrates in a distributed mode. The voice coil may be directly bonded to the exterior housing. A formation may be provided to promote pistonic movement of a part of the exterior housing. Methods of operation and formation are also described.

Description

The improvement of audio frequency apparatus
The present invention relates to audio frequency apparatus and field of components, and be particularly related to the loudspeaker arrangement in the electronic equipment that electronic equipment with the consumer used and be used in the consumer jointly.The present invention is applied to the portable electric appts such as mobile phone, laptop computer and music player especially.
In the consumer of electronic equipment, growing to the serious hope that obtains high tone quality from acoustic component, particularly when obtain from various portable electric appts and the content of multimedia of resetting all the more so when having become more popular.Yet, to for example providing the needs of the electronics that are fit to modern consumer life style to grow with each passing day by the portability that improvement is provided, the convenience and the style of use.It is important that the problem of cost, size and acoustical behavior just becomes.
Distributed mode loudspeaker (Distributed mode loudspeaker) (DML) is arranged and is used in the various application.For example, WO 2004/114717 discloses a kind of driver bank component that is used for thin plate (panel) loud speaker, it comprises the hydrogel holding element, is used for voice coil loudspeaker voice coil is located about magnetic combination, and is formed for driving the surface of sub-assembly to the removable connection of radiation.
It was suggested other board devices, it provides the permanent fixation of loudspeaker drive to radiant panel.Yet present available device is subject to its application flexibility, and for example they are not suitable for less electronic equipment.
One object of the present invention and target provide a kind of improved distributed mode loudspeaker and parts thereof.
Another object of the present invention provides a kind of improved loudspeaker design of using with consumer of being suitable for.
Further aim of the present invention provides a kind of consumer electronics's of being used for improved case member.
Another object of the present invention and target will become obvious from the reading to subsequent descriptions.
According to a first aspect of the invention, provide a kind of electronic equipment with audio-frequency function, this electronic equipment comprises:
Outer enclosure;
Sonic transducer, it is configured to receive electronic audio signal and produces first voice signal;
First acoustic radiator, it is coupled to first sonic transducer, and described first acoustic radiator is effectively according to described voice signal radiation voice signal;
Wherein said first acoustic radiator has constituted the part of the described outer enclosure of described electronic equipment.
Ground preferably, described electronic equipment is the consumer electronics with second function except that audio-frequency function.For example, described electronic equipment can be any one in following: mobile phone, display screen, portable digital assistant (PDA), computer docking station (docking station), MP3 player, CD Player, television set, computer or laptop computer.Described electronic equipment can be portable.
Ground preferably, described first acoustic radiator is configured under the first use pattern, described first voice signal is radiated in the free space, and be configured under the second use pattern, be coupled with second acoustic radiator, so that this second acoustic radiator is effectively according to the described first voice signal radiation second sound signal.
In one embodiment, described first acoustic radiator is configured to carry out the piston type motion.Under first operator scheme, the part of described outer enclosure is carried out the piston type motion, and the piston type motion is radiated described voice signal in the free space whereby.
Described outer enclosure can comprise a kind of structure, and the effect of this structure is to promote the work of the part of described outer enclosure as acoustic radiator.This structure can promote the piston type motion of the described part of outer enclosure.This structure can define the border of described first acoustic radiator.
Described structure can comprise the discontinuous part of described outer enclosure, and the activity of the increase of described first acoustic radiator is provided.Described structure can promote the motion of first acoustic radiator perpendicular to the outer surface of described outer enclosure.Described structure can be used as the part of outer enclosure, and its part that compares to adjacent outer enclosure has bigger elasticity.Described structure can comprise the groove that is formed on the described case surface.Described structure can be partly or wholly around first acoustic radiator.
In another embodiment, described first acoustic radiator can have the zone that reduces with respect to outer enclosure thickness.
As selection, or as additional, described first acoustic radiator is configured on some frequency in low-frequency band to vibrate with distributed mode on piston type mode vibration and some frequency in high frequency band.In fact, described outer enclosure (or its parts) will be vibrated with distributed mode on some frequency.Described equipment can be configured to promote the vibration of distributed mode of some part of this equipment, with when operating in first when using pattern, the voice response that improves equipment.Described equipment can be provided with distributed mode acoustic radiator, and this acoustic radiator is the flat board member of described equipment advantageously, for example display screen.
Ground preferably, described first acoustic radiator not only just is in described device external, and it is a part of outer enclosure, is suitable for or is configured to carry out acoustical vibration.Described first acoustic radiator as the part of described outer enclosure, separates internal functional unit and outside preferablyly, and function some structures and/or protection is provided.Described first acoustic radiator can be an integral body with the outer enclosure member, its constituted described electronic equipment outer surface important component part or main part or come down to that they are whole.
The sub-member of outer enclosure can be the part of mobile phone outer casing, or implement for mobile phone.
The described part that described first acoustic radiator can be the outer enclosure member whole.Described outer enclosure member is the part of the outside of described electronic equipment preferablyly, and it is convenient in use be positioned on the auxiliary surface, so that this auxiliary surface can form described second acoustic radiator.Described outer enclosure member can be the part of lower surface, rear surface or a basal surface of described electronic equipment.
Described electronic equipment can be a mobile phone, and described outer enclosure member can be the part at the back or the back side of described mobile phone outer casing.Under this background, the described back of mobile phone outer casing or the back side are such faces, that is, if described telephone set is put down, this face will be positioned on certain surface.In traditional mobile phone or " slider phones ", this face is on the opposite that display screen and Master Keyboard surface are housed.In " folding covers phone " or " flip phone ", described shell can be designed as, and when described phone was put down, face of shell preferably was positioned on certain surface.In this kind occasion, described outer enclosure member can be appointed D score surface.Yet the sub-member of described outer enclosure can constitute parts of described phone, and these parts are positioned on such face, and this face is designed to when described phone is put down this face is positioned over certain surface.Advantageously, the face that is leaned on shell when described phone is put down, and it allows to use button or see telephone displays.
Ground preferably, described electronic equipment is provided with a kind of coupling device, is used for described first acoustic radiator and second acoustic radiator are carried out the acoustics coupling.Ground preferably, described second acoustic radiator is an auxiliary surface.Described auxiliary surface can be following any form: wall surface, desktop, table top, ceiling and/or a cardboard sheet, perhaps can hard to bear driving with any surface of the radiation sound.
Described second acoustic radiator is preferably to be vibrated with distributed mode.
Described coupling device can be made with a kind of elastomeric material.Described elastomeric material can be that silicones also can be a hydrogel.Ground preferably, described coupling device comprises at least one liner or band.Described at least one liner or band can be made by the material that comprises silicones.Described at least one liner or band can be made by hydrogel.
Described elastomeric material can have hardness less than 20 support column A.Described elastomeric material can have hardness less than 10 support column A.
Described coupling device can comprise liner or the band on the described outer surface that is attached to described electronic equipment.Described coupling device can comprise a plurality of discontinuous liners or band.
Ground preferably, described coupling device is shaped to and prevents that electronic equipment casing from contacting with auxiliary surface.
Under the first use pattern, described first acoustic radiator is radiated described voice signal in the free space as the parts work of loud speaker.Yet embodiments of the present invention can be coupled described electronic equipment with second acoustic radiator of auxiliary surface form, so that acoustic energy can be transferred to described auxiliary surface.Described auxiliary surface becomes the part of distributed mode loudspeaker, and described voice signal is radiated in the free space.This has improved the whole acoustical behavior of described electronic equipment.This has promoted, for example, uses mobile phone with hands-free mode, and has improved various electronic not using huge boombox or being free of attachment under the situation of external loudspeaker, with the ability of high tone quality audio plays content.The present invention also provides a kind of improved device, and by this kind device, the voice response of described electronic equipment needn't be subject to the volume and the quality of parts set in the inner chamber of described electronic equipment or this inner chamber again.This provides greater flexibility in described design of electronic devices.
Described sonic transducer comprises the voice coil loudspeaker voice coil that is coupled to first acoustic radiator preferablyly.Described voice coil loudspeaker voice coil first acoustic radiator that is coupled to rigidly preferably.Described voice coil loudspeaker voice coil can be incorporated into first acoustic radiator.
Ground preferably, described first acoustic radiator is provided with supporting member, and described voice coil loudspeaker voice coil is coupled to described supporting member.Described supporting member is preferablyly from the rat of first acoustic radiator.Described supporting member can be the ring of making according to the size of described voice coil loudspeaker voice coil.Described supporting member can be an integral body with first acoustic radiator.
Ground preferably, described loudspeaker comprises assemblies of magnets, and it is located about described voice coil loudspeaker voice coil by means of positioner.
Ground preferably, described loudspeaker comprises assemblies of magnets, and it is held about described voice coil loudspeaker voice coil by means of fixture.
Ground preferably, described positioner and/or retaining element are flexible, and can be made by silicones or hydrogel material.
Ground preferably, described positioner and holding device are flexible members.
Ground preferably, described flexible member is coupled to first acoustic radiator with assemblies of magnets.
Described flexible member selectively has the support column A of hardness in 0 to 40 scope.Advantageously, described flexible member has the support column A of hardness about 20.
Described flexible member comes down to tubular preferablyly.Described flexible member can provide annular ledge for described assemblies of magnets.
Described flexible member has the function that keeps and locate described group of magnets component about described voice coil loudspeaker voice coil.Therefore described voice coil loudspeaker voice coil places flux space.Select suitable structure, material and hardness for described flexible member and allow of the relative motion of described assemblies of magnets to outer enclosure member and voice coil loudspeaker voice coil.
According to a second aspect of the invention, provide a kind of method that produces voice signal from electronic equipment, described method comprises following steps:
A) in sonic transducer, receive electronic audio signal, and produce first voice signal;
B) in response, the part of outer enclosure that makes described electronic equipment is according to the described first voice signal radiation voice signal.
Ground preferably, described method comprises such step, and described electronic equipment is coupled to second acoustic radiator, so that described second acoustic radiator is effectively according to the described first voice signal radiation second sound signal.
Ground preferably, described method comprises such step, in the first use pattern described first voice signal is radiated in the free space.
The embodiment of a second aspect of the present invention can comprise the one or more features of a first aspect of the present invention and execution mode thereof.
According to a third aspect of the invention we, provide a kind of method that is formed for the loudspeaker arrangement of electronic equipment, described method comprises following steps:
A) voice coil loudspeaker voice coil is coupled to the part of the outer enclosure of described electronic equipment; And
B) in described loudspeaker arrangement, locate assemblies of magnets, to constitute sonic transducer;
The part of wherein said outer enclosure is in use as the first acoustic radiator work.
Described method can comprise such step, promptly keeps and/or locate the one or more parts of described loudspeaker by means of flexible member.
Described method can comprise such additional step, promptly provides coupling device on the outer surface of described electronic equipment.The effect of described coupling device is to make described electronic equipment carry out the acoustics coupling with second acoustic radiator.
According to a forth aspect of the invention, provide a kind of loudspeaker arrangement or electronic equipment, it is made by the described method of above-mentioned a third aspect of the present invention.
The of the present invention the 3rd or the execution mode of fourth aspect can comprise of the present invention first or the one or more features of second aspect and execution mode thereof.
According to a fifth aspect of the invention, provide a kind of acoustic radiator that is used for distributed mode loudspeaker, it is characterized in that, described acoustic radiator is suitable for being formed for the outer enclosure member of portable electric appts.
According to a sixth aspect of the invention, provide a kind of portable electric appts, it is characterized in that described outer enclosure member is formed for the acoustic radiator of described loudspeaker with loudspeaker and outer enclosure member.
According to a seventh aspect of the invention, provide a kind of mobile phone, it is characterized in that described outer enclosure member is formed for the acoustic radiator of described loudspeaker with loudspeaker and outer enclosure member.
The execution mode of the 5th, the 6th or the 7th aspect of the present invention can comprise of the present invention first or the one or more features of second aspect and execution mode thereof.
Refer now to the accompanying drawing of back, only describe embodiments of the present invention in the mode of example, wherein:
Fig. 1 is the vertical view according to the mobile phone of embodiment of the present invention;
Fig. 2 is the end view of mobile phone among Fig. 1;
Fig. 3 A is the viewgraph of cross-section of the part of the mobile phone among Fig. 2, demonstrates internal part;
Fig. 3 B is the viewgraph of cross-section of the part of the mobile phone among Fig. 3 A, demonstrates the activity of parts;
Fig. 4 is the viewgraph of cross-section according to the part of the mobile phone of alternative embodiment of the present invention;
Fig. 5 is the viewgraph of cross-section of the part of the electronic equipment of another execution mode according to the present invention;
Fig. 6 A is the viewgraph of cross-section of the lcd screen with loudspeaker of another execution mode according to the present invention; With
Fig. 6 B is the lcd screen among Fig. 6 A and the perspective view of loudspeaker.
At first, be depicted as a mobile phone, be commonly designated as 10, be positioned on the auxiliary surface 12 with reference to figure 1 and Fig. 2.Shown in phone 10 comprise a shell 14, shell 14 has upper surface 15 and lower surface 16.Display 17 and keypad 18 are set on upper surface 15.The coupling device of liner 20 forms is set on lower surface 16.In this example, liner 20 is two bands that are separated, and it fully extends across the whole width of lower surface.Liner 20 setting and location prevent simultaneously that phone is supported on the auxiliary surface 12 shell 14 from contacting with the direct of auxiliary surface.In other embodiments, this liner will formalize according to the shape of shell and locate.
Liner 20 is bonded to the lower surface place of shell, and is made by the elastic hydrogel material.In this example, described hydrogel has hardness less than 10 support column A.
Fig. 3 A and 3B represent the cross section by the internal part of the phone in the A district among Fig. 2 10.
The inside of shell is a loudspeaker, and it generally is represented as 30.Loudspeaker 30 comprises assemblies of magnets 32 and the voice coil loudspeaker voice coil (or magnet exciting coil) 34 that is positioned in the annular flux space 35, and flux space 35 is defined by magnetic combination 32.In this example, assemblies of magnets 32 comprises inner column type magnet and outside ring magnet.A upper plate is connected described inner magnet with external magnet, the lower plate with ring-like space defines described flux space.
Voice coil loudspeaker voice coil 34 is copper coils, is connected in the electric current supplying wire (not shown), and is incorporated on the outer enclosure member 36, constitutes the part of shell 14.Described outer enclosure member is provided with bulge-structure or muscle shape thing (nerve) 38, and it has the lateral dimensions identical with voice coil loudspeaker voice coil.Described voice coil loudspeaker voice coil is incorporated on the bulge-structure 38, so that its projection from the inner surface of outer enclosure member 36.This helps described voice coil loudspeaker voice coil is positioned in the described ring-like flux space.In this example, described bulge-structure and outer enclosure member 36 are an integral body, and be molded in manufacture process.Voice coil loudspeaker voice coil 34 firmly is coupled to outer enclosure member 36.
Described outer enclosure member is equipped with the second concentric bulge-structure 40 of a kind of and structure 38, and it is an integral body with described outer enclosure member also, to locate a maintenance and holding element 42.42 effects of described element be with described assemblies of magnets location also/or remain on spatial separation relation about described voice coil loudspeaker voice coil.Described element 42 effects are the axial and radial axles along described voice coil loudspeaker voice coil, with described group of magnets component location and maintenance.
Element 42 comes down to tubular, has the maintenance structure of a sidewall, radial extension and is used for the annular ledge 44 of described assemblies of magnets.Element 42 is flexible, makes by having the hydrogel that hardness is about 20 support column A.Described element makes the relative motion of described group of magnets component and described voice coil loudspeaker voice coil be adapted to the transaudient operation of described loud speaker.
Outer enclosure member 36 is abundant rigidity, and it is interchangeable with respect to group of magnets component 32 and voice coil loudspeaker voice coil 34.Electric current among the described sound figure causes the corresponding motion with respect to assemblies of magnets 32 of described voice coil loudspeaker voice coil and outer enclosure member 36.Loudspeaker 30 effects are to make outer enclosure member 36 to do " piston type " motion with respect to assemblies of magnets 32.Indicate as arrow 46, this kind relative motion is fully along the axial direction of the central shaft 45 of loudspeaker 30.
In Fig. 3 A, outer enclosure member 36 is coupled to auxiliary surface 12 by hydrogel pad 20.Hydrogel pad 20 makes loudspeaker 30 can separate from auxiliary surface 12 with outer cover 14.Hydrogel pad 20 also makes outer enclosure member 36 move with respect to auxiliary surface 12, so that transmit the voice signal that is produced by loudspeaker to described auxiliary surface by described outer enclosure member.Therefore, fully the outer enclosure member 36 of rigidity can vibrate and with respect to the auxiliary surface motion, and can be by liner 20 to the auxiliary surface signal of exerting pressure.
The physical property of described hydrogel provides effective acoustics coupling and pressure signal to arrive the high efficiency of transmission of described auxiliary surface.The pressure signal that partly produces by this way in the part of described auxiliary surface has formed the distributed mode in the described auxiliary surface 12, and described auxiliary surface is as the plate ideophone sound radiator of distributed mode loudspeaker.
In Fig. 3 B, the loudspeaker shown in Fig. 3 A is not coupled to any auxiliary surface, and shown in outer enclosure member 36 move with the piston type pattern.In this configuration, casing component is to be similar to the mode effect of the diffuser (cone) in the conventional loud speaker.
In Fig. 4, be depicted as a kind of further execution mode of loudspeaker 70, it is applied to mobile phone outer casing.
In this example, shown in loudspeaker 70 comprise assemblies of magnets 132, retaining member 142 and voice coil loudspeaker voice coil 134, voice coil loudspeaker voice coil 134 be similar to above Fig. 3 A and the described execution mode of 3B such, be coupled to the inner surface of outer enclosure member 136 rigidly.
Yet in this kind occasion, shell 114 is provided with the structure 172 that is surrounded on outer enclosure member 136.The effect of described structure is that the remainder from shell 114 structurally defines outer enclosure member 136.Outer enclosure member 136 keeps being coupled to shell 114 by described structure.Therefore, described structure externally provides a join domain between casing component 136 and the shell 114.
In this example, structure 172 comprises relative circular groove 173a, the 173b that lays respectively at shell 114 upper and lower surfaces.In the described position of described structure, the thickness of described shell is thinner than other positions, therefore be more pliable and tougher easy song and be easier to deformation.This makes outer enclosure member 136 easy with respect to the motion of shell 114.Therefore, structure 172 effects are piston type motions of auxiliary outer enclosure member 136.
Figure 5 shows that a loudspeaker 90 according to a kind of selectable execution mode.In this execution mode, shown in similar shown in sub-assembly and Fig. 3 A, 3B and 4, but difference is that loudspeaker 90 comprises the outer enclosure member 236 of a thin-walled, the thickness of member 236 reduces with respect to other regional integrations of shell 214.Hydrogel pad 220 is attached to thin-walled outer enclosure member 236, this sub-assembly is coupled and is attached to auxiliary surface.
In the embodiment shown in the Figure 4 and 5, the setting of an a kind of structure or a thin part in the shell 214 of phone has improved the response of outer enclosure member 136,236 and the freedom of motion.
Though above-mentioned example reference is a kind of portable telephone device, should be appreciated that the present invention can cover other electronic equipments.Example shown in Fig. 6 A and the 6B, it has generally described a flat panel display screen by reference numeral 300.
In this example, screen 300 comprises screen shell 314 and the loudspeaker 330 that is similar to the sub-assembly 30,130,230 in the above-mentioned execution mode.This loudspeaker 330 comprises outer enclosure member 336, and it has constituted the part of shell 314 and has constituted an integral body with it.The miscellaneous part of loudspeaker 330 is positioned in the narrow chamber 316 of shell 314 inside.
The member of the outer enclosure of described sub-assembly is a complete part of described shell, and this shows that this loudspeaker is a relative compact, and projection still less and can be used in it to have only on the limited equipment that utilizes the space.
As seeing among Fig. 6 B, has the hydrogel pad 320 that is applied to casing outer surface at screen 300.Particularly, described liner is applied to one of the shell 314 outer surfaces zone relative with loudspeaker 330, promptly is applied to outer enclosure member 336.Described liner is made by hydrogel, and described screen can be attached on the wall surface 340.Described hydrogel pad play with loudspeaker 330 acoustics be coupled to the effect of the device of described wall surface.
Described wall surface plays the effect of distributed mode plate ideophone sound radiator, and it is driven by outer enclosure member 336.Described hydrogel provides effective transmission of the vibration from described loudspeaker to described wall surface, and produces distributed mode on described wall.
The present invention can be applied to television indicator, MP3 player or other music players or laptop computer in a similar manner.The present invention also can be applied to the docking station (docking station) of music player or laptop computer.
Under the first use pattern, when electronic equipment described in the above-mentioned execution mode was not located near auxiliary surface, the operation of described loud speaker caused that outer enclosure member 36 sends an acceptable audible voice signal of normal running.Casing component 36 provides normal running acceptable tonequality as the distributed mode loudspeaker parts.Described casing component vibrates with piston type on some frequency of low-frequency band, and vibrates with distributed mode on some frequency of high frequency band.In the practice, described outer enclosure (or its parts) will be vibrated with distributed mode on some frequency.
In the time of on being positioned over auxiliary surface 12, liner 20 have by described external member with loud speaker 30 acoustics be coupled to the effect of auxiliary surface 12.Described outer enclosure member produces distributed mode on described auxiliary surface, particularly on low frequency, improve the tonequality of audio playback.Promote the hands-free operation of phone like this and improved the playback of audio content.
Though execution mode described above relates generally to mobile phone, the present invention can be applied to various electronic equipments.These include but not limited to display screen, television set, laptop computer, PDA, game console, MP3 player, docking station and portable video apparatus.The present invention provides special advantage for those such as the limited electronic equipment in the space of portable electric appts.
Can carry out various modifications and improvement to execution mode as described above, and not depart from the scope of the present invention that means here.

Claims (47)

1. electronic equipment with audio-frequency function, described electronic equipment comprises:
Outer enclosure;
Sonic transducer, it is configured to receive electronic audio signal, and produces first voice signal; With
First acoustic radiator, it is coupled to described first sonic transducer, and described first acoustic radiator is effectively according to described voice signal radiation voice signal;
Wherein said first acoustic radiator constitutes the part of the described outer enclosure of described electronic equipment.
2. electronic equipment as claimed in claim 1, wherein said first acoustic radiator is configured in the first use pattern described first voice signal is radiated in the free space, and be configured to be coupled to second acoustic radiator in the second use pattern, so that described second acoustic radiator is effectively according to the described first voice signal radiation second sound signal.
3. as claim 1 or the described electronic equipment of claim 2, wherein said first acoustic radiator is configured to carry out the piston type motion.
4. electronic equipment as claimed in claim 3, wherein outer enclosure comprises a kind of structure, the effect of described structure is to promote the motion of the piston type of the described part of described outer enclosure.
5. electronic equipment as claimed in claim 4, wherein said structure comprise the discontinuous part of described outer enclosure, with the activity of increase that described first acoustic radiator is provided.
6. as claim 4 or the described electronic equipment of claim 5, wherein said structure comprises the groove in the surface that is formed at described shell.
7. as each described electronic equipment in the claim 4 to 6, wherein said structure division ground or fully around described first acoustic radiator.
8. as each described electronic equipment in the claim of front, wherein said first acoustic radiator has the zone that thickness reduces with respect to the thickness of described outer enclosure.
9. as each described electronic equipment in the claim of front, wherein said first acoustic radiator is configured on some frequency of low-frequency band with the piston type mode vibration, and vibrates with distributed mode on some frequency of high frequency band.
10. electronic equipment as claimed in claim 9, wherein said equipment is provided with the distributed mode acoustic radiator.
11. as each described electronic equipment in the claim of front, wherein said outer enclosure member is the part of described electronic device exterior, described outer enclosure member in use is convenient to be positioned on the auxiliary surface, so that described auxiliary surface can constitute second acoustic radiator.
12. as each described electronic equipment in the claim 2 to 11, it is adapted to drive described second acoustic radiator and vibrates with distributed mode.
13., further comprise being used for the coupling device of described first acoustic radiator to the acoustics coupling of second acoustic radiator as each described electronic equipment in the claim 2 to 12.
14. electronic equipment as claimed in claim 13, wherein said coupling device is attached on the outer surface of described electronic equipment.
15. as claim 13 or the described electronic equipment of claim 14, wherein said coupling device is made by elastomeric material.
16. electronic equipment as claimed in claim 15, wherein said elastomeric material is a hydrogel.
17. as each described electronic equipment in the claim 13 to 16, wherein said coupling device comprises at least one liner or band.
18. electronic equipment as claimed in claim 17, wherein said coupling device comprise a plurality of discontinuous liners or band.
19. as each described electronic equipment in the claim 13 to 18, wherein said coupling device is formalized to prevent the described shell of described electronic equipment and contacting of auxiliary surface.
20. as each described electronic equipment in the claim 15 to 18, wherein said elastomeric material has hardness less than 20 support column A.
21. electronic equipment as claimed in claim 20, wherein said elastomeric material have hardness less than 10 support column A.
22. as each described electronic equipment in the claim of front, wherein said sonic transducer comprises the voice coil loudspeaker voice coil that is coupled to described first acoustic radiator.
23. electronic equipment as claimed in claim 22, wherein said voice coil loudspeaker voice coil are coupled to described first acoustic radiator rigidly.
24. electronic equipment as claimed in claim 23, wherein said voice coil loudspeaker voice coil are attached to described first acoustic radiator.
25. as each described electronic equipment in the claim 22 to 24, wherein said first acoustic radiator is provided with supporting member, described voice coil loudspeaker voice coil is coupled to described supporting member.
26. electronic equipment as claimed in claim 25, wherein said supporting member is from the described rat of first acoustic radiator.
27. as claim 25 or the described electronic equipment of claim 26, wherein said supporting member is the ring of making according to the size of described voice coil loudspeaker voice coil.
28. as each the described electronic equipment in the claim 25 to 27, wherein said supporting member and described first acoustic radiator are an integral body.
29. as each described electronic equipment in the claim of front, wherein said sonic transducer comprises and is used for fixing or at least one flexible member of positioning magnet sub-assembly about described voice coil loudspeaker voice coil.
30. the electronic equipment described in claim 29, wherein said flexible member is made by silicones or hydrogel material.
31. as claim 29 or the described electronic equipment of claim 30, wherein said flexible member is coupled to described first acoustic radiator with described assemblies of magnets.
32. as each the described electronic equipment in the claim 29 to 31, wherein said flexible member has the support column A of hardness in 0 to 40 scope.
33. having hardness, electronic equipment as claimed in claim 32, wherein said flexible member be about 20 support column A.
34. as each described electronic equipment in the claim 29 to 33, wherein said flexible member comes down to tubular.
35. electronic equipment as claimed in claim 34, wherein said flexible member provides ring-like bearing for described magnetic combination.
36. as each described electronic equipment in the claim of front, wherein said electronic equipment is a mobile phone, and the back of the described outer enclosure member shell that is described mobile phone or the part at the back side.
37. the method from electronic equipment generation voice signal said method comprising the steps of:
In sonic transducer, receive electric audio signal, and produce first voice signal;
In response, the part of outer enclosure that makes described electronic equipment is according to the described first voice signal radiation voice signal.
38. method as claimed in claim 37 comprises following additional step: described electronic equipment is coupled to second acoustic radiator, so that described second acoustic radiator is effectively according to the described first voice signal radiation second sound signal.
39. as claim 37 or the described method of claim 38, comprise following additional step: in the first use pattern, described first voice signal is radiated in the free space.
40. as each described method in the claim 37 to 39, wherein said electronic equipment is as each the described electronic equipment in the claim 1 to 36.
41. a method that is configured for the loudspeaker arrangement of electronic equipment said method comprising the steps of:
Voice coil loudspeaker voice coil is coupled to the part of the outer enclosure of described electronic equipment; With
Assemblies of magnets is positioned in the described speaker unit, to constitute sonic transducer;
The described part of wherein said outer enclosure is in use as first acoustic radiator.
42. method as claimed in claim 41 comprises following additional step: the one or more parts of fixing and/or locate described loudspeaker by means of flexible member.
43. as claim 41 or the described method of claim 42, comprise following additional step: the outer surface at described electronic equipment is provided with coupling device.
44. loudspeaker arrangement of making by each described method in the claim 41 to 43.
45. electronic equipment that merges loudspeaker arrangement described in the claim 44.
46. the portable electric appts with loudspeaker and outer enclosure member is characterized in that described outer enclosure member is formed for the acoustic radiator of described loudspeaker.
47. the mobile phone with loudspeaker and outer enclosure member is characterized in that described outer enclosure member is formed for the acoustic radiator of described loudspeaker.
CNA200680039324XA 2005-10-21 2006-10-23 Improvements to audio devices Pending CN101297590A (en)

Applications Claiming Priority (3)

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GB0521477A GB0521477D0 (en) 2005-10-21 2005-10-21 Improvements to audio devices
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103141122A (en) * 2010-09-30 2013-06-05 苹果公司 Electronic devices with improved audio
CN108271105A (en) * 2017-01-04 2018-07-10 苹果公司 loudspeaker assembly
CN111937409A (en) * 2018-04-06 2020-11-13 谷歌有限责任公司 Distributed mode loudspeaker electromagnetic actuator with axial and radial magnetization circuits
CN112075091A (en) * 2018-02-20 2020-12-11 谷歌有限责任公司 Electromagnetic actuator for panel audio speaker

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103141122A (en) * 2010-09-30 2013-06-05 苹果公司 Electronic devices with improved audio
CN103141122B (en) * 2010-09-30 2016-01-13 苹果公司 There is the electronic installation improving audio frequency
CN108271105A (en) * 2017-01-04 2018-07-10 苹果公司 loudspeaker assembly
CN108271105B (en) * 2017-01-04 2020-08-18 苹果公司 Loudspeaker assembly
CN112075091A (en) * 2018-02-20 2020-12-11 谷歌有限责任公司 Electromagnetic actuator for panel audio speaker
US11516587B2 (en) 2018-02-20 2022-11-29 Google Llc Panel audio loudspeaker electromagnetic actuator
CN111937409A (en) * 2018-04-06 2020-11-13 谷歌有限责任公司 Distributed mode loudspeaker electromagnetic actuator with axial and radial magnetization circuits
CN113873403A (en) * 2018-04-06 2021-12-31 谷歌有限责任公司 Distributed mode loudspeaker electromagnetic actuator with axial and radial magnetization circuits
CN111937409B (en) * 2018-04-06 2022-06-03 谷歌有限责任公司 Distributed mode loudspeaker electromagnetic actuator with axial and radial magnetization circuits

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