CN103763655A - Symmetrical sound box and manufacturing method thereof - Google Patents
Symmetrical sound box and manufacturing method thereof Download PDFInfo
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- CN103763655A CN103763655A CN201310177452.2A CN201310177452A CN103763655A CN 103763655 A CN103763655 A CN 103763655A CN 201310177452 A CN201310177452 A CN 201310177452A CN 103763655 A CN103763655 A CN 103763655A
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Abstract
Disclosed are a symmetrical sound box and a manufacturing method thereof. The sound box includes a box body; at least two vibrating units, wherein the at least two vibrating units are arranged symmetrically at opposite sides of the box body and vibrate to generate sound effects in response to input of audio signals; and at least two vibrated units which are arranged at the other opposite sides of the box body symmetrically, wherein when the two vibrating units vibrate and act on air in the box body, the air in the box body acts on the at least two vibrated units so that vibration is generated in the two vibrated units and thus auxiliary sound effects are generated.
Description
Technical field
The present invention relates to a kind of audio amplifier, particularly a kind of symmetrical expression audio amplifier, thus its a plurality of vibrational systems for generation of sound are the impact that the vibration of cancelling out each other is set symmetrically, thus reduce the vibrations of audio amplifier.
Background technology
Common sound-box device, its horn system operated by rotary motion is in the same side of sound box.After input audio signal, will pass through generation of vibration sound.When sound-box device is opened greatlyr especially for the sound of playing the subwoofer of bass, audio amplifier self also can produce strong vibrations, thereby cause audio amplifier self to produce, jumps or left and right displacement.And this strong vibrations also may drive other article vibrations around, thereby damage these article.For example, when audio amplifier and computer put together, the vibrations of audio amplifier can make also and then vibrations together of host computer, thereby may damage parts in computer as hard disk, mainboard etc.So in the place that acoustics is had relatively high expectations, as on-the-spot in concert, discotheque etc., all need to fix audio amplifier or utilize other mode to make audio amplifier keep firm when moving with fixed mount.And in order to reduce vibrations adverse effect and in order to obtain higher-quality bass effect, conventionally very heavy for playing the sound-box device of bass, volume is larger, is so also unfavorable for transportation and carries.Therefore, need a kind of volume small and exquisite, can improve again the particularly audio amplifier of bass effect of acoustical quality.
Summary of the invention
Main purpose of the present invention is to provide a kind of symmetrical expression audio amplifier, its a plurality of vibrational systems for sounding arrange symmetrically, thereby these vibrational systems can be cancelled out each other, the impact of vibration, reduces the vibration displacement of whole audio amplifier, thereby makes audio amplifier more stable when work.
Another object of the present invention is to provide a kind of symmetrical expression audio amplifier, a plurality of described vibrational systems can share a vibration cavity, like this, these vibrational systems, can be offset the vibrating effect that brought separately when acting on the air in described vibration cavity in vibration in the described vibration cavity in described audio amplifier.
Another object of the present invention is to provide a kind of symmetrical expression audio amplifier, and a plurality of described vibrational systems are not the same sides that is arranged on individually described audio amplifier, but are arranged on separately contrary both sides, thereby more easily vibrating effect are offset.
Another object of the present invention is to provide a kind of symmetrical expression audio amplifier, a plurality of described vibrational systems comprise at least two principal oscillation unit and at least two passive vibration units, the input of described two principal oscillation cell response audio signals and produce vibration, and act on the air in described vibration cavity, passive vibration unit described in air driven in described vibration cavity is vibrated together, thereby produce the acoustical quality, particularly bass effect that improve.
Another object of the present invention is to provide a kind of symmetrical expression audio amplifier, described at least two, principal oscillation unit is arranged on the two opposite sides of described audio amplifier, described at least two passive vibration units are arranged on the other two opposite sides of described audio amplifier, thereby when producing vibration, at two opposite sides, all can produce vibration, thereby make whole casing can not be partial to certain specific direction and produce vibration displacement.
Another object of the present invention is to provide a kind of symmetrical expression audio amplifier, in described principal oscillation unit, produce vibration with along a directive effect during air in described vibration cavity, for example, while pushing the air in described vibration cavity, described extruded air can be along other directive effect in described at least two passive vibration units, thereby the vibrating effect that makes air is able to be able to balance in described audio amplifier inside, and whole casing is tended towards stability.
Another object of the present invention is to provide a kind of symmetrical expression audio amplifier, collocation design by principal oscillation unit and passive vibration unit, described audio amplifier can reach better bass effect, thereby described audio amplifier does not need to carry out the design of complicated internal structure again, the acoustical quality that just can reach, and volume and size less, thickness is thinner, conveniently stores, transports and carry.
For reaching above object, the invention provides a kind of symmetrical expression audio amplifier, it comprises:
One casing;
At least two principal oscillation unit, described at least two principal oscillation unit are and are arranged on symmetrically the opposition side of described casing so that described at least two principal oscillation unit are reverse symmetry arranges, and described at least two principal oscillation unit respond respectively the input of audio signal and generation of vibration audio; And
At least two passive vibration units, described at least two principal oscillation unit are and are arranged on symmetrically the other opposition side of described casing so that described at least two passive vibration units are reverse symmetry arranges, while wherein acting on the air in described casing when described two principal oscillation unit vibrations, air effect in described casing is on described at least two passive vibration units, thereby described in making, at least two passive vibration units produce vibration, to produce auxiliary audio.
According to one embodiment of present invention, described casing forms a vibration cavity, and described principal oscillation unit and described passive vibration unit are arranged on around described vibration cavity.
According to one embodiment of present invention, described principal oscillation unit and described passive vibration unit share described vibration cavity, thereby when described principal oscillation unit vibrates to act on the air in described vibration cavity, the vibration of the air in described vibration cavity drives the vibration of described passive vibration unit, thereby makes described passive vibration unit vibration and produce described auxiliary audio.
According to one embodiment of present invention, described symmetrical expression audio amplifier comprise two described in passive vibration unit described in principal oscillation unit and two, described casing forms both ends of the surface and two sides, described in two, principal oscillation unit is arranged on respectively the described both ends of the surface of described casing symmetrically, and described in two, passive vibration unit is arranged on respectively the described two sides of described casing symmetrically.
According to one embodiment of present invention, described symmetrical expression audio amplifier comprise two described in passive vibration unit described in principal oscillation unit and two, side and left and right sides before and after described casing definition, described in two, principal oscillation unit is arranged on respectively the described front and back side of described casing symmetrically, and described in two, passive vibration unit is arranged on respectively the described left and right sides of described casing symmetrically.
According to one embodiment of present invention, described audio amplifier is also provided with power amplifier unit, with at least two principal oscillation unit described in being connected to, thereby audio signal is provided to described principal oscillation unit.
According to one embodiment of present invention, described principal oscillation unit is selected from a kind of in loud speaker and loudspeaker separately.
According to one embodiment of present invention, described principal oscillation unit comprises a principal oscillation element separately, one is arranged on the outstanding limit of described principal oscillation component ambient, one voice coil loudspeaker voice coil, and one magnetic return system, described voice coil loudspeaker voice coil returns at described magnetic under the effect in magnetic field of system and moves back and forth, thereby drives described principal oscillation vibration of element to produce audio.
According to one embodiment of present invention, described principal oscillation unit also comprises an installation frame, for being arranged on described casing, described outstanding limit is arranged between described installation frame and described principal oscillation element, the described magnetic system of returning comprises a fixed frame, and described fixed frame and described installation frame link together.
According to one embodiment of present invention, the mode that fixed frame is connected with described installation frame is selected from buckle and connects, a kind of during hot pressing connection, ultrasonic waves are connected with welding.
According to one embodiment of present invention, described passive vibration unit comprises separately a vibrating mass and is positioned at described vibrating mass elastic suspended limit around.
According to one embodiment of present invention, described passive vibration unit comprises separately a vibrating mass and is positioned at described vibrating mass elastic suspended limit around.
According to one embodiment of present invention, described passive vibration unit also comprises a positioning framework, and described positioning framework is used for being arranged on described casing, and described elastic suspended limit is arranged between described positioning framework and described vibrating mass.
The present invention also provides a kind of symmetrical expression audio amplifier, and it comprises:
One casing, described casing has a vibration cavity;
At least two principal oscillation unit, described at least two principal oscillation unit are arranged on described vibration cavity around symmetrically, and described at least two principal oscillation unit respond respectively the input of audio signal and generation of vibration audio; And
At least two passive vibration units, described at least two passive vibration units are arranged on described vibration cavity around symmetrically, while wherein acting on the air in the described vibration cavity in described casing when described two principal oscillation unit vibrations, air effect in described casing is on described at least two passive vibration units, thereby described in making, at least two passive vibration units produce vibration, to produce auxiliary audio, thereby described casing vibrations generation noise is agitated and do not made to the air of described vibration cavity sky purely by described principal oscillation unit and described passive vibration unit.
The present invention also provides a kind of manufacture method of symmetrical expression audio amplifier, and it comprises the steps:
(a) form the casing with principal oscillation cellular installation hole and passive vibration unit installing hole;
(b) by least two principal oscillation cellular installations in the described principal oscillation cellular installation hole of correspondence, and in such a way, described principal oscillation unit a contrary side of described casing dispose other one described in principal oscillation unit, thereby be symmetrically, arrange; And
(c) at least two passive vibration units are arranged in corresponding described passive vibration unit installing hole, and in such a way, described passive vibration unit a contrary side of described casing dispose other one described in passive vibration unit, thereby be symmetrically, arrange, during wherein said principal oscillation unit generation of vibration audio, drive the air vibration in described casing, thereby the air effect in described casing, in described passive vibration unit, makes described passive vibration unit vibration and the auxiliary audio of generation.
According to one embodiment of present invention, described principal oscillation unit is selected from a kind of in loud speaker and loudspeaker separately.
According to one embodiment of present invention, the manufacture method of described principal oscillation unit comprises step:
(d) by vibrating diaphragm, and installation frame is placed in rubber jetting mold, via injection molding machine, embed together ejection formation, rubber is coated formation principal oscillation element by described vibrating diaphragm, and rubber also forms outstanding limit between described installation frame and described principal oscillation element simultaneously;
(e) voice coil loudspeaker voice coil 23 is connected in to described principal oscillation element, the described magnetic system of returning enters jetting mold via plastic-embedded and forms integrative-structure, thereby become the magnetic that contains a fixed frame, return assembly, thereby described magnetic returns assembly and described installation frame, be fixed together and formed complete described principal oscillation unit.The mode that described fixed frame is connected with described installation frame is selected from buckle and connects, a kind of during hot pressing connection, ultrasonic waves are connected with welding.
According to one embodiment of present invention, the manufacture craft of described passive vibration unit comprises the steps: vibration weight and positioning framework to be placed in rubber jetting mold, via injection molding machine, embed together ejection formation, rubber is coated formation vibrating mass by described vibrating diaphragm, and rubber also forms elastic suspended limit between described positioning framework and described vibrating mass simultaneously.
According to one embodiment of present invention, the method also comprises step: cross a main frame mould and make two main frames, described two frameworks provide two corresponding described principal oscillation cellular installation holes separately, and described two main frames form two described passive vibration unit installing holes while fitting together.
According to one embodiment of present invention, the method also comprises step: cross a main frame mould and make two main frames, described two frameworks provide two corresponding described passive vibration unit installing holes separately, and described two main frames form two described principal oscillation cellular installation holes while fitting together
Beneficial effect of the present invention is, by the vibrational system of sounding being arranged symmetrically and the collocation design of principal oscillation unit and passive vibration unit, reduced the vibrations of whole audio amplifier and obtained particularly bass effect of better acoustical quality, and volume size is less, cost is lower.
Accompanying drawing explanation
Fig. 1 is the perspective view of symmetrical expression audio amplifier according to a preferred embodiment of the present invention.
Fig. 2 is according to the decomposing schematic representation of the symmetrical expression audio amplifier of above preferred embodiment of the present invention.
Fig. 3 is according to the vibrating effect schematic diagram in symmetrical expression audio amplifier when work of above preferred embodiment of the present invention.
Fig. 4 A and Fig. 4 B are according to the principal oscillation unit of the symmetrical expression audio amplifier of above preferred embodiment of the present invention and passive vibration unit fabrication processing schematic diagram.
Fig. 5 is another passive vibration unit of symmetrical expression audio amplifier of the above preferred embodiment according to the present invention and the structural representation of principal oscillation unit.
Embodiment
Symmetrical expression audio amplifier according to a preferred embodiment of the present invention as shown in Figures 1 to 4, it comprises a casing 10, and a plurality of vibrational systems 20 and 30 that are arranged at described casing 10, the input of a plurality of described vibrational systems 20 and 30 response external audio signals and produce vibration, thus predetermined audio produced.In the present invention, these vibrational systems 20 and 30 are symmetrically and arrange according to type, for keep the stable of described casing 10 when described audio amplifier is worked.
Particularly, described casing 10 can be the rectangular shape of illustrating in the present embodiment, can certainly be other shape.In the present embodiment, described casing 10 can have up and down and front and back six sides totally, upper and lower side wherein has one side for being placed on work top, so these two sides can not arrange described vibrational system, described vibrational system 20 and 30 can be separately positioned on the left and right of described casing 10 and front and back on totally four sides symmetrically, the vibrating effect being produced to cancel out each other.
It is worth mentioning that, here up and down and front and back only represent direction, and only as not limiting for example the present invention.The difference in the orientation of placing according to described casing 10 in actual applications, can have different definition.In addition, those skilled in the art can expect, when described casing is unsettled while arranging, its six sides can be provided with vibrational system.And when described casing 10 has other shapes and has a plurality of side, its each side also can correspondingly be provided with described vibrational system 20 and 30.
More specifically, in this preferred embodiment, these vibrational systems can comprise at least two principal oscillation unit 20, and at least two passive vibration units 30.Correspondingly, described at least two principal oscillation unit 20 arrange symmetrically on described casing 10, described at least two passive vibration units 30 also arrange symmetrically on described casing 10, more specifically, these principal oscillation unit 20 are reverse symmetry and arrange on described casing 10, and these passive vibration units are also reverse symmetry and arrange on described casing 10.It is worth mentioning that, in this preferred embodiment of the present invention, described audio amplifier comprises two described principal oscillation unit 20 and two described passive vibration units 30.Described principal oscillation unit 20 be connected to separately outside source of sound with the response input of audio signal generation of vibration audio, therefore these principal oscillation unit 20 are mutually setting symmetrically, thereby these principal oscillation unit 20 are when vibration, and each will produce vibration in the opposite direction.As shown in Figure 3, in a vibration processes, be positioned at both sides described principal oscillation unit 20 direction of vibration all towards the outside, this makes its direction of vibration just contrary, and whole described casing 10 is equivalent to not be subject to being obviously partial to the active force of some direction of vibration, thereby kept balance and stability.
In this preferred embodiment, described two principal oscillation unit 20 can be arranged on the front and back side of described casing 10, and described two passive vibration units 30 can be arranged on the left and right sides of described casing 10.As shown in FIG., described casing 10 has both ends of the surface 10a, and two sides 10b.Described two principal oscillation unit 20 are positioned at the described both ends of the surface 10 of described casing 10, and described two passive vibration units 30 are positioned at the described two sides 10b of described casing 10, and described two principal oscillation unit 20 are setting symmetrically, described two passive vibration units 30 are also setting symmetrically.It is worth mentioning that, in the front and back of described casing 10 side, be provided with behind described two principal oscillation unit 20, in front and back side, also can be provided with again described passive vibration unit 30.That is to say, on each side of front and back side, can be provided with a principal oscillation unit 20 and a passive vibration unit 30.
Similarly, these passive vibration units 30 are also mutually setting symmetrically, thereby these passive vibration units 30 are when vibration, respectively will produce in the opposite direction vibration.As shown in Figure 3, in a vibration processes, the direction of vibration of described passive vibration unit that is positioned at both sides is just contrary, and whole described casing 10 is equivalent to not be subject to being obviously partial to the active force of some direction of vibration, thereby is kept firm.
It will be further appreciated that, in this preferred embodiment of the present invention, two described principal oscillation unit 20 make described two passive vibration units 30 produce vibration for driving described two passive vibration units 30.That is to say, described two passive vibration units 30 are not directly connected to outside source of sound, and its vibrating effect derives from the driving of described two principal oscillation unit 20.More specifically, two described principal oscillation unit 20 are when producing vibration, can correspondingly push the air in described casing 10, acting on described two passive units 30 of the vibration of the air in described casing 10, thereby make described two passive units 30 then produce vibration, thereby described two passive vibration units 30 are also produced audio.
Because described two passive vibration units 30 also can produce audio, so just make described audio amplifier acoustical quality be improved significantly, particularly improved the bass effect of described audio amplifier.Described like this audio amplifier just need not be made bulky, and integral body is very heavy.Because, this symmetrical expression audio amplifier of the present invention and utilize the collocation of described principal oscillation unit 20 and described passive vibration unit 30, can produce desirable acoustical quality, has particularly improved the acoustical quality of bass, thereby make described audio amplifier be tending towards small and exquisite, be convenient for carrying and transport.
It is worth mentioning that, a described principal oscillation unit 20 can, for driving a described passive vibration unit 30, that is to say that they can share an air vibration chamber.In this preferred embodiment of the present invention, described casing 10 forms vibration cavity 100, in the surrounding of described vibration cavity 100, is respectively arranged with described principal oscillation unit 20 and described passive vibration unit 30.That is to say, these principal oscillation unit 20 and passive vibration unit 30 have identical air vibration chamber.
As shown in Figure 3, when described two principal oscillation unit 20 direction of vibration are when outside, be subject to the impact of the air in described vibration cavity 100, described two passive vibration units 30 can correspondingly have the inside vibration of direction.That is to say, air in described vibration cavity 100 is equivalent to be subject to the proportionality action power from surrounding, thereby remain in described vibration cavity 100, rather than be subject to being obviously partial to the active force in some orientation, cause acting on described casing 10 and make described casing 10 produce displacements.That is to say, these principal oscillation unit 20 and passive vibration unit 30 are agitated the air in described vibration cavity 100, and whole described casing 10 can not shake generation noise yet, thereby make the tonequality that obtains purer.
That is to say, audio amplifier of the present invention is in when work, thus its vibrating effect in described casing 10 self inside, offset and kept balance and stability, so whole described casing 10 can not produce larger vibrations on work top.
In this preferred embodiment, described audio amplifier is respectively arranged with installing hole 11,12 in four sides of described casing 10, and 13 and 14, for described two principal oscillation unit 20 and described two passive vibration units 30 are installed respectively.Correspondingly, described installing hole 11,12,13 and 14 position are also symmetrically and arrange.
It is worth mentioning that, as shown in Figure 2, described audio amplifier 10 is also provided with two power amplifier units 15, for being connected to respectively described two principal oscillation unit 20, the input of audio signal is provided to described two principal oscillation unit 20.
Described two structures that principal oscillation unit 20 can be various loudspeaker or loud speaker, as long as it can respond the input of audio signal and generation of vibration audio.More specifically, in the present invention, described in each, principal oscillation unit 20 comprises a principal oscillation element 21, described principal oscillation element can be Loudspeaker diaphragm or drum paper etc., described principal oscillation unit further comprises and is arranged on described principal oscillation element 21 outstanding limit 22 around, and necessary voice coil loudspeaker voice coil 23, magnetic returns system 24 parts such as grade.Described principal oscillation unit 20 also comprises an installation frame 25, for being arranged on the installing hole of described casing 10, thereby installs hermetically with described casing 10.It is worth mentioning that, described outstanding limit 22 also can be directly installed on the surface of installing hole of described casing 10.
When having audio signal input, described voice coil loudspeaker voice coil 23 returns at described magnetic under the effect in magnetic field of system 24 and moves back and forth, thereby drive described principal oscillation element 21 to vibrate to produce audio, thereby while extruded air in described vibration cavity 100 can drive described passive vibration unit 30 vibrations to produce auxiliary audio.
It is worth mentioning that, described magnetic returns system 24 and is connected on a fixed frame 26, and described fixed frame 26 fits together with described installation frame 25, thereby has formed whole described principal oscillation unit 20.Described fixed frame 26 can be that buckle is connected with described installation frame 25 assembling modes, or other mode is as methods such as hot pressing, ultrasonic waves or weldings.
Described in each, passive vibration unit 30 comprises the vibrating mass 31 in the middle of being positioned at and is positioned at described vibrating mass 31 elastic suspended limit 32 around, and described elastic suspended limit 32 can be directly installed on the inner surface of installing hole of described casing 10.In the present embodiment, described passive vibration unit 30 also comprises a positioning framework 33, and described positioning framework 33 is arranged in the installing hole of described casing 10 to install hermetically with described casing 10.
Being worth mentioning is, with reference to Fig. 4, the invention provides a kind of manufacture craft of audio amplifier.In the present invention, need to make described principal oscillation unit 20 and described passive vibration unit 30, then described principal oscillation unit 20 and described passive vibration unit 30 be assembled integratedly with described casing 10.
The process of making described principal oscillation unit 20 can be as follows, by principal oscillation element 21, as the vibrating diaphragm of the vibrating diaphragm of alloy material or other rigid materials, and described installation frame 25 is placed in rubber jetting mold, via injection molding machine, embed together ejection formation, rubber is coated the described principal oscillation element 21 of formation by described vibrating diaphragm, and rubber also forms described outstanding limit 22 between described installation frame 25 and described principal oscillation element 21 simultaneously.Then described voice coil loudspeaker voice coil 23 is connected in to described principal oscillation element 21, described magnetic returns system 24 and via plastic-embedded, enters jetting mold formation integrative-structure by U iron, magnet, pole piece etc., thereby become the magnetic that contains a fixed frame 26 and return assembly, described magnetic returns assembly and described installation frame 25 merges by buckle, hot pressing, ultrasonic waves, hot melt or additive method are fixed together, thereby have formed complete principal oscillation unit 20.
Similarly, the manufacturing process of described passive vibration unit 30 is as follows: by vibration weight 31(, can be also the vibrating diaphragm of rigid material) be placed in rubber jetting mold with positioning framework 33, via injection molding machine, embed together ejection formation, rubber is coated the described vibrating mass 31 of formation by described vibrating diaphragm, and rubber also forms described elastic suspended limit 32 between described positioning framework 33 and described vibrating mass 31 simultaneously.
Described casing 10 comprises two main frames 101 and 102, and it snaps together and forms described vibration cavity 100.It is worth mentioning that, these two main frames 101 and 102 are made by a main frame mould, thereby can full symmetric in when assembling, and manufacturing process also just simply.More specifically, on a principal oscillation unit 101, be provided with symmetrical principal oscillation cellular installation hole 11 and 13, described master shakes and can form symmetrical passive vibration unit installing hole 12 and 14 when master unit 101 fits together with described principal oscillation unit 102, described principal oscillation unit 20 and described passive vibration unit 30 are arranged on respectively in these installing holes by necessary installation component respectively, thereby form whole described audio amplifier.These vibration units are all setting symmetrically, not only reduce the vibrations of even having eliminated whole audio amplifier, have strengthened bass effect, also more attractive in appearance.It is worth mentioning that, as above mentioned, described principal oscillation unit 20 can be also traditional loudspeaker or loud speaker.
It is worth mentioning that, the outstanding limit 22 of described principal oscillation unit 20 and the elastic suspended limit 32 of described passive vibration unit 30 are accordion and are separately positioned on described principal oscillation element 21 and described vibrating mass 31 around, make the vibration of described principal oscillation element 21 and described vibrating mass 31 can not pull consumingly corresponding installation frame 25 and positioning framework 33 and cause damage.
The described principal oscillation element 21 of the described principal oscillation unit 20 of audio amplifier of the present invention, the described vibrating mass 31 of described outstanding limit 22 and described passive vibration unit 30 and described elastic suspended limit 32 can be made into various shapes, in the preferred embodiment shown in Fig. 1 to Fig. 4, the described principal oscillation element 21 of described principal oscillation unit 20, described outstanding limit 22 can be circular, and the described vibrating mass 31 of described passive vibration unit 30 is can be also circular with elastic suspended limit 320.Can certainly be other shape, rectangle as shown in Figure 5.Also can be the shapes such as other polygons or ellipse.
The power amplification system 15 of described audio amplifier also can be provided with linkage interface element 16, for carrying out swap data with other audiogenic devices or stereo set by the mode of wired connection.Such as being connected by wired connection and computer, mobile phone, personal digital assistant, MP3, MP4, MP5 and other audio amplifiers with source of sound etc., with should these audiogenic devices or the requirement of audio amplifier play music or other sound.
Thereby, described audio amplifier of the present invention can carry out data communication by wireless connections or wired connection mode as notebook computer with an external sound source setting, when user need to play the audio files in notebook, acoustic information sends described audio amplifier to, and described audio amplifier receives that audio signal just can play these audio files.And because described audio amplifier volume of the present invention is small and exquisite, thereby is convenient for carrying and uses, because the collocation of described principal oscillation unit 20 and described passive vibration unit 30, acoustical quality can well be guaranteed again.
One skilled in the art will understand that the embodiments of the invention shown in foregoing description and accompanying drawing only limit the present invention as an example and not.
As can be seen here, the present invention's object is complete and be effectively achieved.Function of the present invention and structural principle are shown in an embodiment and are illustrated, are not deviating under described principle, and execution mode can be done any modification.So, present invention includes all distortion execution modes based on claim spirit and claim scope.
Claims (26)
1. a symmetrical expression audio amplifier, is characterized in that, comprising:
One casing;
At least two principal oscillation unit, described at least two principal oscillation unit are and are arranged on symmetrically the opposition side of described casing so that described at least two principal oscillation unit are reverse symmetry arranges, and described at least two principal oscillation unit respond respectively the input of audio signal and generation of vibration audio; And
At least two passive vibration units, described at least two principal oscillation unit are and are arranged on symmetrically the other opposition side of described casing so that described at least two passive vibration units are reverse symmetry arranges, while wherein acting on the air in described casing when described two principal oscillation unit vibrations, air effect in described casing is on described at least two passive vibration units, thereby described in making, at least two passive vibration units produce vibration, to produce auxiliary audio.
2. symmetrical expression audio amplifier as claimed in claim 1, is characterized in that, described casing forms a vibration cavity, and described principal oscillation unit and described passive vibration unit are arranged on around described vibration cavity.
3. symmetrical expression audio amplifier as claimed in claim 2, it is characterized in that, described principal oscillation unit and described passive vibration unit share described vibration cavity, thereby when described principal oscillation unit vibrates to act on the air in described vibration cavity, the vibration of the air in described vibration cavity drives the vibration of described passive vibration unit, thereby makes described passive vibration unit vibration and produce described auxiliary audio.
4. symmetrical expression audio amplifier as claimed in claim 1, it is characterized in that, described symmetrical expression audio amplifier comprise two described in passive vibration unit described in principal oscillation unit and two, described casing forms both ends of the surface and two sides, described in two, principal oscillation unit is arranged on respectively the described both ends of the surface of described casing symmetrically, and described in two, passive vibration unit is arranged on respectively the described two sides of described casing symmetrically.
5. symmetrical expression audio amplifier as claimed in claim 1, it is characterized in that, described symmetrical expression audio amplifier comprise two described in passive vibration unit described in principal oscillation unit and two, side and left and right sides before and after described casing definition, described in two, principal oscillation unit is arranged on respectively the described front and back side of described casing symmetrically, and described in two, passive vibration unit is arranged on respectively the described left and right sides of described casing symmetrically.
6. symmetrical expression audio amplifier as claimed in claim 1, is characterized in that, described audio amplifier is also provided with power amplifier unit, with at least two principal oscillation unit described in being connected to, thereby audio signal is provided to described principal oscillation unit.
7. as the symmetrical expression audio amplifier as described in arbitrary in claim 1 to 6, it is characterized in that, described principal oscillation unit is selected from a kind of in loud speaker and loudspeaker separately.
8. as the symmetrical expression audio amplifier as described in arbitrary in claim 1 to 6, it is characterized in that, described principal oscillation unit comprises a principal oscillation element separately, one is arranged on the outstanding limit of described principal oscillation component ambient, one voice coil loudspeaker voice coil, and one magnetic return system, described voice coil loudspeaker voice coil returns at described magnetic under the effect in magnetic field of system and moves back and forth, thereby drives described principal oscillation vibration of element to produce audio.
9. symmetrical expression audio amplifier as claimed in claim 8, it is characterized in that, described principal oscillation unit also comprises an installation frame, for being arranged on described casing, described outstanding limit is arranged between described installation frame and described principal oscillation element, the described magnetic system of returning comprises a fixed frame, and described fixed frame and described installation frame link together.
10. symmetrical expression audio amplifier as claimed in claim 9, is characterized in that, the mode that fixed frame is connected with described installation frame is selected from buckle and connects, a kind of during hot pressing connection, ultrasonic waves are connected with welding.
11. symmetrical expression audio amplifiers as claimed in claim 7, is characterized in that, described passive vibration unit comprises separately a vibrating mass and is positioned at described vibrating mass elastic suspended limit around.
12. symmetrical expression audio amplifiers as claimed in claim 10, is characterized in that, described passive vibration unit comprises separately a vibrating mass and is positioned at described vibrating mass elastic suspended limit around.
13. symmetrical expression audio amplifiers as claimed in claim 12, is characterized in that, described passive vibration unit also comprises a positioning framework, and described positioning framework is used for being arranged on described casing, and described elastic suspended limit is arranged between described positioning framework and described vibrating mass.
14. 1 kinds of symmetrical expression audio amplifiers, is characterized in that, comprising:
One casing, described casing has a vibration cavity;
At least two principal oscillation unit, described at least two principal oscillation unit are arranged on described vibration cavity around symmetrically, and described at least two principal oscillation unit respond respectively the input of audio signal and generation of vibration audio; And
At least two passive vibration units, described at least two passive vibration units are arranged on described vibration cavity around symmetrically, while wherein acting on the air in the described vibration cavity in described casing when described two principal oscillation unit vibrations, air effect in described casing is on described at least two passive vibration units, thereby described in making, at least two passive vibration units produce vibration, to produce auxiliary audio, thereby described casing vibrations generation noise is agitated and do not made to the air of described vibration cavity sky purely by described principal oscillation unit and described passive vibration unit.
15. symmetrical expression audio amplifiers as claimed in claim 14, is characterized in that, described principal oscillation unit is selected from a kind of in loud speaker and loudspeaker separately.
16. symmetrical expression audio amplifiers as claimed in claim 14, it is characterized in that, described principal oscillation unit comprises a principal oscillation element separately, one is arranged on the outstanding limit of described principal oscillation component ambient, one voice coil loudspeaker voice coil, and one magnetic return system, described voice coil loudspeaker voice coil returns at described magnetic under the effect in magnetic field of system and moves back and forth, thereby drives described principal oscillation vibration of element to produce audio.
17. symmetrical expression audio amplifiers as claimed in claim 16, it is characterized in that, described principal oscillation unit also comprises an installation frame, for being arranged on described casing, described outstanding limit is arranged between described installation frame and described principal oscillation element, the described magnetic system of returning comprises a fixed frame, and described fixed frame and described installation frame link together.
18. as the symmetrical expression audio amplifier as described in arbitrary in claim 14 to 17, it is characterized in that, described passive vibration unit comprises separately a vibrating mass and is positioned at described vibrating mass elastic suspended limit around.
19. symmetrical expression audio amplifiers as claimed in claim 18, is characterized in that, described passive vibration unit also comprises a positioning framework, and described positioning framework is used for being arranged on described casing, and described elastic suspended limit is arranged between described positioning framework and described vibrating mass.
The manufacture method of 20. 1 kinds of symmetrical expression audio amplifiers, is characterized in that, comprises the steps:
(a) form the casing with principal oscillation cellular installation hole and passive vibration unit installing hole;
(b) by least two principal oscillation cellular installations in the described principal oscillation cellular installation hole of correspondence, and in such a way, described principal oscillation unit a contrary side of described casing dispose other one described in principal oscillation unit, thereby be symmetrically, arrange; And
(c) at least two passive vibration units are arranged in corresponding described passive vibration unit installing hole, and in such a way, described passive vibration unit a contrary side of described casing dispose other one described in passive vibration unit, thereby be symmetrically, arrange, during wherein said principal oscillation unit generation of vibration audio, drive the air vibration in described casing, thereby the air effect in described casing, in described passive vibration unit, makes described passive vibration unit vibration and the auxiliary audio of generation.
21. methods as described in claim 20, is characterized in that, described principal oscillation unit is selected from a kind of in loud speaker and loudspeaker separately.
22. methods as described in claim 20, is characterized in that, the manufacture method of described principal oscillation unit comprises step:
(d) by vibrating diaphragm, and installation frame is placed in rubber jetting mold, via injection molding machine, embed together ejection formation, rubber is coated formation principal oscillation element by described vibrating diaphragm, and rubber also forms outstanding limit between described installation frame and described principal oscillation element simultaneously;
(e) voice coil loudspeaker voice coil 23 is connected in to described principal oscillation element, the described magnetic system of returning enters jetting mold via plastic-embedded and forms integrative-structure, thereby become the magnetic that contains a fixed frame, return assembly, thereby described magnetic returns assembly and described installation frame, be fixed together and formed complete described principal oscillation unit.
23. methods described in claim 22, is characterized in that, the mode that described fixed frame is connected with described installation frame is selected from buckle and connects, a kind of during hot pressing connection, ultrasonic waves are connected with welding.
24. as the method as described in arbitrary in claim 20 to 23, it is characterized in that, vibration weight and positioning framework are placed in rubber jetting mold, via injection molding machine, embed together ejection formation, rubber is coated formation vibrating mass by described vibrating diaphragm, and rubber also forms elastic suspended limit between described positioning framework and described vibrating mass simultaneously.
25. methods as described in claim 20, it is characterized in that, also comprise step: by a main frame mould, make two main frames, described two frameworks provide two corresponding described principal oscillation cellular installation holes separately, and described two main frames form two described passive vibration unit installing holes while fitting together.
26. methods as described in claim 20, it is characterized in that, also comprise step: by a main frame mould, make two main frames, described two frameworks provide two corresponding described passive vibration unit installing holes separately, and described two main frames form two described principal oscillation cellular installation holes while fitting together.
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| CN201310177452.2A CN103763655B (en) | 2013-05-13 | 2013-05-13 | Symmetrical sound box and its manufacture method |
| CN201810135286.2A CN108551607A (en) | 2013-05-13 | 2013-05-13 | Symmetrical sound box and its manufacturing method |
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| CN103763655B CN103763655B (en) | 2018-03-13 |
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| CN105228071A (en) * | 2014-07-02 | 2016-01-06 | 宁波升亚电子有限公司 | A kind of portable conference system |
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| CN115842990B (en) * | 2023-02-15 | 2023-05-16 | 共达电声股份有限公司 | Vibrating diaphragm system and loudspeaker |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108551607A (en) | 2018-09-18 |
| CN103763655B (en) | 2018-03-13 |
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