CN104822107A - All direction open type sound box - Google Patents
All direction open type sound box Download PDFInfo
- Publication number
- CN104822107A CN104822107A CN201510127017.8A CN201510127017A CN104822107A CN 104822107 A CN104822107 A CN 104822107A CN 201510127017 A CN201510127017 A CN 201510127017A CN 104822107 A CN104822107 A CN 104822107A
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- oviduct
- spherical shell
- symmetrical
- closing coil
- horn pipe
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Abstract
The invention provides an all direction open type sound box. The sound box comprises a base. A spherical shell comprising a vibrating diaphragm is fixed on the base. A left side surface and a right side surface of the spherical shell are symmetrically concave toward the direction of the center of the sphere, so as to form two sections of symmetrical horn pipes. The two sections of symmetrical horn pipes are mutually connected with each other in the spherical shell, so as to form a symmetrical horn pipe. A closing coil coaxial with the horn pipe is fixed on the surface of each section of horn pipe. The closing coil is distributed from the end of the horn pipe close to the center of the spherical shell to the end of the horn pipe close to the spherical surface of the spherical shell. A section of cylindrical electromagnet coaxial with the symmetrical horn pipe is fixed at the center of the interior of the symmetrical horn pipe. An exciting coil is wound on the surface of the electromagnet. The exciting coil is coupled on a power amplifier module and a power module arranged in the base. The all direction open type sound box has basically consistent auditory effect in all directions, and has high sound energy efficiency and large sound production power.
Description
Technical field
The present invention relates to electrical equipment, especially, relate to a kind of audio amplifier.
Background technology
Current audio amplifier, mainly includes casing and loud speaker; Loud speaker is embedded in casing, and sound basin toward the front.Wherein, the magnet exciting coil that one is coupled in source of sound power amplifier is fixed at the sound basin rear of loud speaker, coil rear is then a permanent magnet, magnet exciting coil is in the magnetic field of permanent magnet, electric current in magnet exciting coil changes with source of sound, thus magnet exciting coil is vibrated relative to permanent magnet, thus promote described sound basin vibration sounding.Under this mechanism, sound basin vibration institute produces sound can only pushed forward, and make the audience being in audio amplifier front can experience complete and full music, and be in the audience in other orientation of audio amplifier, can only hear reflected sound, its successful is not so good as audio amplifier front; In addition, during the vibration of sound basin, the sound pushed backward is nearly all absorbed by casing, causes acoustic energy to waste; Further, because sound basin only has a single vibration face haply, not only vibration plane is limited, and also due to asymmetry spatially, make its safe amplitude also be subject to larger restriction, this makes the sounding power of audio amplifier be subject to larger restriction.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide the open audio amplifier of a kind of omnirange, the open audio amplifier of this omnirange can produce basically identical auditory effect in all directions, and acoustic energy efficiency is high, and sounding power is large.
The technical solution adopted for the present invention to solve the technical problems is: the open audio amplifier of this omnirange comprises pedestal, described pedestal is fixed the spherical shell that a vibrating diaphragm is formed, the surface, the left and right sides of described spherical shell is symmetrical caves in centre of sphere direction, form two sections of symmetrical oviducts, these two sections symmetrical oviducts are interconnected in spherical shell inside, form symmetrical horn pipe; The surface of two sections of described oviducts is fixed with the closing coil coaxial with oviduct respectively, and described closing coil is distributed to oviduct one end near spherical shell sphere from oviduct near one end of the spherical shell centre of sphere; The center of inside of described symmetrical horn pipe fixes one section of cylindricality electromagnet coaxial with this symmetrical horn pipe, and described electromagnet surface wrap has magnet exciting coil, and described magnet exciting coil is coupled in is located at power amplifier module in described pedestal and power module.
As preferably, at least one bus of described symmetrical horn pipe, is made into the fold extended along bus.
As preferably, oviduct described in two sections realizes connecting by one section of ripple rubber tube, thus not only realize fixing the symmetry of two sections of oviducts, improve the structural stability of whole system, and when making the oviduct symmetric vibration of the left and right sides, mutually do not keep in check in the axial direction, improve the amplitude of whole spherical shell further.
As preferably, each section of described oviduct is respectively equipped with two or more closing coil, and each closing coil is loop, is nested with on oviduct surface.Further, described closing coil is a becket, so that manufacture and assembling.
As preferably, described closing coil makes in the following manner: one, be coated with metallic film on described oviduct surface; Two, etch on described metallic film, oviduct surface is formed and oviduct is coaxial, the adjacent to one another and metal wire loop of mutually insulated; Each described metal wire loop forms a described closing coil.
Beneficial effect of the present invention is: the open audio amplifier of this omnirange operationally, the tone currents that source of sound produces after power amplifier module amplifies as the exciting current of described electromagnet, the magnetic field that electromagnet produces is with tone currents real-time change, and this magnetic field is horn-like to external radiation from the two ends of electromagnet respectively, that is magnetic field intensity outwards weakens gradually along described oviduct axis, thus make each closing coil on oviduct be in a gradient fields all the time, then according to Lenz's law, when tone currents instantaneous value increases, during global magnetic field intensity enhancing, the outwards movement of each closing coil, and when tone currents instantaneous value reduces, during global magnetic field remitted its fury, each closing coil moves inward, with this, realize closing coil and follow tone currents and vibrate, this vibration is passed to whole spherical shell by described symmetrical horn pipe symmetry, thus makes the sphere of whole spherical shell carry out comprehensive sounding to external world, realizes producing basically identical auditory effect in all directions, further, because vibrational energy is completely to outdiffusion, vibration area is large, and spatial symmetry is good, so acoustic energy efficiency is high, sounding power is large.
Accompanying drawing explanation
Fig. 1 is embodiment one schematic diagram of the open audio amplifier of this omnirange.
Fig. 2 is embodiment two schematic diagram of the open audio amplifier of this omnirange.
Embodiment
Embodiment one:
In the embodiment one shown in Fig. 1, the open audio amplifier of this omnirange comprises pedestal 1, described pedestal 1 is fixed the spherical shell 2 that a vibrating diaphragm is formed.
The surface, the left and right sides of described spherical shell 2 is symmetrical to centre of sphere direction depression, forms two sections of symmetrical oviducts 20,20 ', and these two sections symmetrical oviducts 20,20 ' are interconnected in spherical shell inside, formation symmetrical horn pipe.
The surface of two sections of described oviducts 20,20 ' be fixed with respectively the closing coil coaxial with oviduct 3,3 ', described closing coil 3,3 ' ' is distributed to oviduct one end near spherical shell sphere near one end of spherical shell 2 centre of sphere from oviduct 20,20.In the present embodiment, described closing coil makes in the following manner: one, be coated with metallic film on described oviduct 20,20 ' surface; Two, etch on described metallic film, oviduct surface is formed and oviduct is coaxial, the adjacent to one another and metal wire loop of mutually insulated; Each described metal wire loop forms a described closing coil, two sections of described oviducts 20,20 ' and closing coil 3, the 3 ' full symmetric on their surfaces.Make closing coil according to this kind of mode, significantly can reduce assembly difficulty, and the distribution of the closing coil on oviduct surface can be made to realize the best uniformity, optimal symmetry, and best density.
The center of inside of described symmetrical horn pipe fixes one section of cylindricality electromagnet 4 coaxial with this symmetrical horn pipe, described electromagnet 4 surface wrap has magnet exciting coil, and described magnet exciting coil is coupled in is located at power amplifier module (not shown) in described pedestal 1 and power module (not shown).
The open audio amplifier of above-mentioned omnirange operationally, the tone currents that source of sound produces after power amplifier module amplifies as the exciting current of described electromagnet 4, the magnetic field that electromagnet produces is with tone currents real-time change, and this magnetic field is horn-like to external radiation from the two ends of electromagnet 4 respectively, as electromagnet in Fig. 14 two ends dotted arrow illustrated, that is magnetic field intensity outwards weakens gradually along described oviduct axis, thus make each closing coil 3 on oviduct, 3 ' are in a gradient fields all the time, then according to Lenz's law, when tone currents instantaneous value increases, during global magnetic field intensity enhancing, the outwards movement of each closing coil, to suppress the increase of closing coil magnetic flux, in the present embodiment one, because two sections of oviducts 20,20 ' directly connect in spherical shell 2, so oviduct 20,20 ' is kept in check mutually, cannot directly to out-draw, in the case, oviduct 20,20 ' will as solid arrow in Fig. 1 illustrated, tube wall is drawn close to oviduct axis, thus make closing coil 3,3 ' spatially beyond move, in this process, the caliber being equivalent to oviduct shrinks, and therefore, in order to more smooth, along the bus of whole described symmetrical horn pipe, can also make at least one fold 21 extended along bus, thus the caliber of oviduct is acted freely.Otherwise, when tone currents instantaneous value reduces, during global magnetic field remitted its fury, each closing coil counter motion.Thus, achieve closing coil 3,3 ' ' follow tone currents with oviduct 20,20 and vibrate; This vibration is passed to whole spherical shell 2 by described symmetrical horn pipe symmetry, thus makes the sphere of whole spherical shell 2 carry out comprehensive sounding to external world, realizes producing basically identical auditory effect in all directions; Further, because vibrational energy is completely to outdiffusion, vibration area is large, and spatial symmetry is good, so acoustic energy efficiency is high, sounding power is large.
Embodiment two:
In the embodiment two shown in Fig. 2, be with the difference of embodiment one: described oviduct 20,20 ' no longer makes the fold 21 in embodiment one, and makes two sections of oviducts 20,20 ' realize connecting by one section of ripple rubber tube 22; By this scheme, not only realize to two sections of oviducts 20,20 ' symmetry fix, improve the structural stability of whole system, and when making oviduct 20, the 20 ' symmetric vibration of the left and right sides, mutually do not keep in check in the axial direction, the amplitude of whole spherical shell can be improved further.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the open audio amplifier of omnirange, comprise pedestal (1), it is characterized in that: described pedestal is fixed the spherical shell (2) that a vibrating diaphragm is formed, the surface, the left and right sides of described spherical shell (2) is symmetrical caves in centre of sphere direction, form two sections of symmetrical oviducts (20,20 '), these two sections symmetrical oviducts are interconnected in spherical shell inside, form symmetrical horn pipe; The surface of two sections of described oviducts (20,20 ') be fixed with respectively the closing coil coaxial with oviduct (3,3 '), described closing coil is distributed to oviduct one end near spherical shell sphere from oviduct near one end of the spherical shell centre of sphere; The center of inside of described symmetrical horn pipe fixes one section of cylindricality electromagnet (4) coaxial with this symmetrical horn pipe, described electromagnet (4) surface wrap has magnet exciting coil, and described magnet exciting coil is coupled in is located at power amplifier module in described pedestal (1) and power module.
2. the open audio amplifier of omnirange according to claim 1, is characterized in that: at least one bus of described symmetrical horn pipe, is made into the fold (21) extended along bus.
3. the open audio amplifier of omnirange according to claim 1, is characterized in that: (20,20 ') is connected by the realization of one section of ripple rubber tube (22) oviduct described in two sections.
4. according to the open audio amplifier of omnirange in claims 1 to 3 described in any, it is characterized in that: (20,20 ') is respectively equipped with two or more closing coil (3,3 ') at each section of described oviduct, each closing coil is loop, is nested with on oviduct surface.
5. the open audio amplifier of omnirange according to claim 4, is characterized in that: described closing coil is a becket.
6. according to the open audio amplifier of omnirange in claims 1 to 3 described in any, it is characterized in that: (3,3 ') makes described closing coil in the following manner: one, be coated with metallic film on described oviduct (20,20 ') surface; Two, etch on described metallic film, oviduct surface is formed and oviduct is coaxial, the adjacent to one another and metal wire loop of mutually insulated; Each described metal wire loop forms a described closing coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127017.8A CN104822107B (en) | 2015-03-23 | 2015-03-23 | The open speaker of omnirange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127017.8A CN104822107B (en) | 2015-03-23 | 2015-03-23 | The open speaker of omnirange |
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| Publication Number | Publication Date |
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| CN104822107A true CN104822107A (en) | 2015-08-05 |
| CN104822107B CN104822107B (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510127017.8A Active CN104822107B (en) | 2015-03-23 | 2015-03-23 | The open speaker of omnirange |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937226A (en) * | 2017-05-13 | 2017-07-07 | 门立山 | Solid vibration film loudspeaker |
| CN106954160A (en) * | 2017-05-13 | 2017-07-14 | 门立山 | A kind of point sound source loudspeaker |
Citations (9)
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| DE3142462A1 (en) * | 1980-10-28 | 1982-05-27 | Hans-Peter 7000 Stuttgart Pfeiffer | Loudspeaker device |
| US4473721A (en) * | 1981-04-01 | 1984-09-25 | Siegfried Klein | High-frequency loud speaker |
| US4989254A (en) * | 1989-06-30 | 1991-01-29 | Amalaha Leonard D | Electro-acoustic transducer and manufacturing process |
| CN1060754A (en) * | 1991-01-07 | 1992-04-29 | 张卫东 | Ball type vibration membrane loudspeaker |
| CN1489879A (en) * | 2001-03-09 | 2004-04-14 | Electrocoustic converter | |
| CN1678131A (en) * | 2004-03-30 | 2005-10-05 | 三星电机株式会社 | Speaker for mobile terminals and manufacturing method thereof |
| CN101867859A (en) * | 2009-04-15 | 2010-10-20 | 财团法人工业技术研究院 | Electrostatic loudspeaker |
| CN201813522U (en) * | 2010-07-05 | 2011-04-27 | 朱国祥 | Push-pull type loudspeaker |
| CN103714945A (en) * | 2013-12-25 | 2014-04-09 | 黄伟嫦 | Electronic component and manufacturing method thereof |
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2015
- 2015-03-23 CN CN201510127017.8A patent/CN104822107B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3142462A1 (en) * | 1980-10-28 | 1982-05-27 | Hans-Peter 7000 Stuttgart Pfeiffer | Loudspeaker device |
| US4473721A (en) * | 1981-04-01 | 1984-09-25 | Siegfried Klein | High-frequency loud speaker |
| US4989254A (en) * | 1989-06-30 | 1991-01-29 | Amalaha Leonard D | Electro-acoustic transducer and manufacturing process |
| CN1060754A (en) * | 1991-01-07 | 1992-04-29 | 张卫东 | Ball type vibration membrane loudspeaker |
| CN1489879A (en) * | 2001-03-09 | 2004-04-14 | Electrocoustic converter | |
| CN1678131A (en) * | 2004-03-30 | 2005-10-05 | 三星电机株式会社 | Speaker for mobile terminals and manufacturing method thereof |
| CN101867859A (en) * | 2009-04-15 | 2010-10-20 | 财团法人工业技术研究院 | Electrostatic loudspeaker |
| CN201813522U (en) * | 2010-07-05 | 2011-04-27 | 朱国祥 | Push-pull type loudspeaker |
| CN103714945A (en) * | 2013-12-25 | 2014-04-09 | 黄伟嫦 | Electronic component and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106937226A (en) * | 2017-05-13 | 2017-07-07 | 门立山 | Solid vibration film loudspeaker |
| CN106954160A (en) * | 2017-05-13 | 2017-07-14 | 门立山 | A kind of point sound source loudspeaker |
| CN106937226B (en) * | 2017-05-13 | 2019-07-30 | 门立山 | Solid vibration film loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104822107B (en) | 2018-05-15 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Chaojian Inventor before: Ma Genchang |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180413 Address after: 528400 peach blossom sand Industrial Zone, Min An Road, Xiaolan Town, Zhongshan, Guangdong Applicant after: Zhongshan Shengya audio electrical appliance Co. Ltd. Address before: 210000 Nanjing, Jiangsu Province, Yuhuatai District, software Avenue, No. 186 Applicant before: Ma Genchang |
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