360 ° omni-directional sounding tweeterTechnical field
The present invention relates to loud speaker fields, and in particular to a kind of 360 ° omni-directional sounding tweeter.
Background technology
In recent years, with the development of electronics technology industry and material science, miscellaneous acoustic electronic product obtains in the pastThe direction of high-fidelity sounding is developed, but applies on the electronic products such as various fever sound equipments, automobile audio, television setLoud speaker carries out sounding propagation, in order to preferably provide high quality since loud speaker and sound box are positioned over same planeSounding effect will hold acoustics phase, loud speaker pendulum position, loudspeaker diaphragm materials, electronic device and power amplifier etc.Continuous research improvement, the development of the loud speaker of conventional acoustic principle, sound quality often improves little by little all it is difficult incomparably,Unprecedented Sound Development bottleneck is encountered, technological innovation is carried out to which more pleasing to the ear audible device can not be allowed to have reset sound.
The Haier doctor (Oscar Heil) in the U.S. in 1973 has invented a kind of special loud speaker acoustic irradiation mode ---AMT (Air Motion Transformer) pneumatic type energy converter, i.e. Haier's formula loud speaker.Its operation principle is in two magnetic polesCentre has a piece of special insulation film, film surface to be covered with one layer by certain wire coil for moving towards arrangement, and as accordionThe vibrating diaphragm component folded up like that, each adjacent face of folding diaphragm do relative motion in magnetic field, from crimple squeeze out orSuck air, the radiative acoustic wave in a manner of injection.
The occurring mode of Haier's formula loud speaker is that air is by spouting in the gap that folds, just as being squeezed with two fingersPress a table tennis more the same than pushing away the farther faster reason that can be run with a palm, energy ratio vibrating diaphragm directly shakes in airThat to be come is faster stronger.According to the measurement of doctor Heil, speed is about 5 times of common Dome loudspeaker.Excellent characteristic makes seaIt is careful that your loud speaker has, solid, straightforward, limpid, sweet and do not lose details, and parsing power is high, and precisely, dynamic is big, and wink property is goodFirst-class performance, for generally acknowledged one of high pitch loudspeaker top-ranked unit.Such as：Guitar, piano etc. is listened to play happy spatial impression bigger,Violin can keep wood taste and it is subtle rustle, fizz equal overtones details constitutes true texture, voice can be showed trulyCareful magnetic voice, the especially performance in big signal are even more superior.
But Haier's manufacture process of speaker is complicated, it is at high price, it is difficult to universal.Traditional single side sounding simultaneously, or even beforeSounding all has sound transmission dead angle afterwards, travels to the strong and weak difference that human ear has sound wave, the air of driving is limited, and distortion rate is inclinedHeight, can not further increase that field of audio voice quality is truer, the more natural, technical merit that more shakes.
Invention content
The object of the present invention is to provide a kind of 360 ° omni-directional sounding tweeters, realize loud speaker 360 ° omni-directional hairSound, and sounding effect is splendid, greatly increases vibrating diaphragm area, vibrating diaphragm amplitude is small, and vibration velocity is fast, and distortion is lower.
The purpose of the present invention is be achieved through the following technical solutions：
A kind of 360 ° omni-directional sounding tweeter, including magnetic structure, the magnetic structure include first annular leadMagnet is installed in the second annular magnetic conduction iron on the outside of it with set, is set between the first annular magnetic conduction iron and the second annular magnetic conduction ironThere are one high-energy magnet and annular diaphragm group, the one high-energy magnet to be symmetricly set on the both sides up and down of the first annular magnetic conduction iron, instituteAnnular diaphragm group is stated to be arranged between upper and lower two one high-energy magnets.
Further, the annular diaphragm group includes folding diaphragm and annular diaphragm frame, and the folding diaphragm is fixed on instituteState the outside of annular diaphragm frame, the annular diaphragm frame is annular solid, outside side wall be equipped with on the folding diaphragmThe matched convex block in gully.
Further, the folding diaphragm is to suppress one layer of aluminium foil or copper foil by heat safe insulation film on piece, soIt by voice coil in chemical etching and is flexed into more folding shapes afterwards and forms.
Further, pass through seccotine between the annular magnetic conduction iron of the first annular magnetic conduction iron, one high-energy magnet and secondIt is fixedly connected.
Further, the outer lateral side of the described second annular magnetic conduction iron is equipped with several strip through-holes, is used for radiative acoustic wave,Has the function of beauty simultaneously.
Further, the top and bottom of the magnetic structure is respectively equipped with upper cover and chassis, keeps the magnetic structure straightIt connects outside being exposed to, increases aesthetics, so that the sound wave that the annular diaphragm group is sent out directly is issued in space, ensure the matter of soundAmount.
Beneficial effects of the present invention are：
1, the present invention is realized is designed to that 360 degrees omnidirection tune, realization are really drilled by Haier's injection high-pitched speakerFruit of proving effective be truly realized when image documentation equipment restores direct projection, reflection, complexity and rich overtone sound really restore.
2, the present invention is by 360 ° omni-directional sounding, and sounding effect is splendid, is implemented without deliberately that placement position is justBoth wide and deep huge sound field can be built, the superpower audition impression of highly directive, does not reappear nature, music hall is listenedThe true effect arrived, existing a large amount of direct projection sound, also there is very abundant reflected sound, can obtain immenseer space wellSense, more true stage sense and knot image force, make it be more suitable for using in the undesirable listening environments in space, it can be provided reallyAnd detailed 3 D stereo acoustic imaging.
3, folding diaphragm is surrounded annular by the present invention, increases vibrating diaphragm area, increases air drive volume, realizes vibrating diaphragm amplitudeSmall, vibration velocity is fast, and sound transmission speed is faster.
4, impedance curve of the present invention is straight, and power is big and is easy driving, and is distorted lower.
Description of the drawings
Below according to attached drawing, invention is further described in detail.
Fig. 1 is the external structure of 360 ° omni-directional sounding tweeter described in the embodiment of the present invention；
Fig. 2 is the internal structure chart of 360 ° omni-directional sounding tweeter described in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of annular diaphragm group 7 in Fig. 2；
Fig. 4 is the enlarged drawing of part A in Fig. 3.
In figure：
1, magnetic structure；2, upper cover；3, chassis；4, first annular magnetic conduction iron；5, the second annular magnetic conduction iron；6, high-energy magneticIron；7, annular diaphragm group；8, vibrating diaphragm；9, annular diaphragm frame；10, convex block；11, strip through-hole.
Specific implementation mode
As shown in Figs. 1-2, a kind of 360 ° omni-directional sounding tweeter of the embodiment of the present invention, including magnetic structure 1,The top and bottom of magnetic structure 1 is respectively equipped with upper cover 2 and chassis 3.
Magnetic structure 1 is installed in the second annular magnetic conduction iron 5 on the outside of it, the first ring including first annular magnetic conduction iron 4 and setSemi-circular shape structure made of shape magnetic conduction iron 4 and the second annular magnetic conduction iron 5 are bent by magnetic conduction irony plank by punching press, thenIt is formed by two semi-annular structures to form, such method processing is simple, at low cost.
It is equipped with one high-energy magnet 6 and annular diaphragm group 7, high-energy magnetic between 4 and second annular magnetic conduction iron 5 of first annular magnetic conduction ironIron 6 is symmetricly set on the both sides up and down of first annular magnetic conduction iron 4, and the shape of one high-energy magnet 6 is annular, and easy to process, annular is shakenFilm group 7 is arranged between upper and lower two one high-energy magnets 6, and annular diaphragm group 7 is perpendicular to one high-energy magnet 6；First annular magnetic conduction iron 4,It is fixedly connected by seccotine between one high-energy magnet 6 and the second annular magnetic conduction iron 5；The outer lateral side of second annular magnetic conduction iron 5Several strip through-holes 11 are equipped with, are used for radiative acoustic wave, while having the function of beauty.
As shown in Figure 3-4, annular diaphragm group 7 includes folding diaphragm 8 and annular diaphragm frame 9, and folding diaphragm 8 is fixed on annularThe outside of vibrating diaphragm frame 9, annular diaphragm frame 9 are annular solid, and outside side wall is equipped with matched with the gully on folding diaphragm 8Convex block 10.Folding diaphragm 8 is to suppress one layer of aluminium foil or copper foil by heat safe insulation film on piece, then passes through chemical etchingUpper voice coil is simultaneously flexed into more folding shapes and forms.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present inventionThe product of form, however, make any variation in its shape or structure, it is every that there is skill identical or similar to the present applicationArt scheme, is within the scope of the present invention.