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CN104822107B - The open speaker of omnirange - Google Patents

The open speaker of omnirange Download PDF

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Publication number
CN104822107B
CN104822107B CN201510127017.8A CN201510127017A CN104822107B CN 104822107 B CN104822107 B CN 104822107B CN 201510127017 A CN201510127017 A CN 201510127017A CN 104822107 B CN104822107 B CN 104822107B
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CN
China
Prior art keywords
oviduct
spherical shell
symmetrical
omnirange
closing coil
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CN201510127017.8A
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CN104822107A (en
Inventor
何焯坚
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Zhongshan Shengya audio electrical appliance Co. Ltd.
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Zhongshan Shengya Audio Electrical Appliance Co Ltd
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Abstract

The present invention provides a kind of open speaker of omnirange, including pedestal, the spherical shell that a vibrating diaphragm is formed is fixed on the pedestal, the left and right sides surface of the spherical shell is symmetrically recessed to centre of sphere direction, form two sections of symmetrical oviducts, this two sections symmetrical oviducts are connected with each other inside spherical shell, form symmetrical horn pipe;The surface of two sections of oviducts is respectively fixed with the closing coil coaxial with oviduct, and the closing coil is distributed to oviduct close to one end of spherical shell sphere from oviduct close to one end of the spherical shell centre of sphere;The center of inside of the symmetrical horn pipe fixes one section of cylindricality electromagnet coaxial with the symmetrical horn pipe, and the electromagnet surface wrap has magnet exciting coil, and the magnet exciting coil is coupled in power amplifier module and power module in the pedestal.The open speaker of the omnirange can produce basically identical auditory effect in all directions, and acoustic energy is efficient, and sounding power is big.

Description

The open speaker of omnirange
Technical field
The present invention relates to electrical equipment, is to be related to a kind of speaker especially.
Background technology
Current speaker, mainly includes babinet and loudspeaker;Loudspeaker is in the babinet, and sound basin is towards front.Its In, a magnet exciting coil for being coupled in source of sound power amplifier is fixed at the sound basin rear of loudspeaker, and coil rear is then a permanent magnet, Magnet exciting coil is in the magnetic field of permanent magnet, and the electric current in magnet exciting coil changes with source of sound, so that magnet exciting coil is relative to forever Magnet vibrates, so as to promote the sound basin vibration sounding.Under this mechanism, sound produced by the vibration of sound basin can only push forward, The audience in front of speaker is experienced complete and full music, and be in the audience in the other orientation of speaker, can only Hear reflected sound, its positive effect is not as in front of speaker;In addition, when sound basin vibrates, the sound pushed backward is nearly all by babinet Absorb, cause acoustic energy to waste;Also, since sound basin generally only has a single vibration face, not only vibration plane is limited, due also to Asymmetry spatially, makes its safe amplitude also be subject to larger limitation, this makes the sounding power of speaker be subject to larger limitation.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of open speaker of omnirange, the omnirange are open Speaker can produce basically identical auditory effect in all directions, and acoustic energy is efficient, and sounding power is big.
The technical solution adopted by the present invention to solve the technical problems is:The open speaker of the omnirange includes pedestal, institute To state and the spherical shell that a vibrating diaphragm is formed is fixed on pedestal, the left and right sides surface of the spherical shell is symmetrically recessed to centre of sphere direction, Two sections of symmetrical oviducts are formed, this two sections symmetrical oviducts are connected with each other inside spherical shell, form symmetrical horn pipe;Two sections The surface of the oviduct is respectively fixed with the closing coil coaxial with oviduct, and the closing coil is from oviduct by subsphaeroidal One end of the shell centre of sphere is distributed to oviduct close to one end of spherical shell sphere;The center of inside of the symmetrical horn pipe fixes one section The cylindricality electromagnet coaxial with the symmetrical horn pipe, the electromagnet surface wrap have magnet exciting coil, the magnet exciting coil coupling In power amplifier module and power module in the pedestal.
Preferably, at least one busbar of the symmetrical horn pipe, is made to sense along the fold that busbar extends.
Preferably, the oviduct described in two sections realizes connection by one section of ripple rubber tube, so as to not only realize to two The symmetrical of section oviduct is fixed, when improving the structural stability of whole system, and making the oviduct symmetric vibration of the left and right sides, Do not keep in check mutually in the axial direction, further improve the amplitude of whole spherical shell.
Preferably, being respectively equipped with two or more closing coil on each section of oviduct, each closing coil is in ring Shape, is nested with loudspeaker pipe surface.Further, the closing coil is a becket, in order to manufacture and assemble.
Preferably, the closing coil makes in the following manner:First, it is coated with metallic film in the loudspeaker pipe surface; 2nd, etched on the metallic film, loudspeaker pipe surface is formed and oviduct is coaxial, gold adjacent to one another and mutually insulated Belong to wire loop;Each wire loop forms a closing coil.
The beneficial effects of the present invention are:At work, the tone currents that source of sound produces passes through the open speaker of the omnirange Exciting current as the electromagnet after power amplifier module amplification, the magnetic field of electromagnet generation with tone currents real-time change, and The magnetic field is in horn-like to external radiation respectively from the both ends of electromagnet, that is, magnetic field intensity is outwards gradual along the oviduct axis Weaken, so that each closing coil on oviduct is in a gradient fields all the time, then according to Lenz's law, work as tone currents Instantaneous value increases, and during global magnetic field intensity enhancing, each closing coil is displaced outwardly;And when the reduction of tone currents instantaneous value, it is overall When magnetic field intensity weakens, each closing coil moves inward;With this, realize that closing coil follows tone currents and vibrates;The vibration Whole spherical shell is symmetrically transferred to by the symmetrical horn pipe, so that the sphere of whole spherical shell carries out comprehensive hair to the external world Sound, realization produce basically identical auditory effect in all directions;Also, since vibrational energy is completely to external diffusion, vibration Area is big, and spatial symmetry is good, so acoustic energy is efficient, sounding power is big.
Brief description of the drawings
Fig. 1 is one schematic diagram of embodiment of the open speaker of this omnirange.
Fig. 2 is two schematic diagram of embodiment of the open speaker of this omnirange.
Embodiment
Embodiment one:
In the embodiment one shown in Fig. 1, the open speaker of the omnirange includes pedestal 1, and one is fixed on the pedestal 1 The spherical shell 2 that vibrating diaphragm is formed.
The left and right sides surface of the spherical shell 2 is symmetrically recessed to centre of sphere direction, two sections of symmetrical oviducts 20 of formation, 20 ', this two sections symmetrical oviducts 20,20 ' are connected with each other inside spherical shell, form symmetrical horn pipe.
The surface of two sections of oviducts 20,20 ' is respectively fixed with the closing coil 3,3 ' coaxial with oviduct, described Closing coil 3,3 ' is distributed to oviduct close to spherical shell sphere from oviduct 20,20 ' close to one end of 2 centre of sphere of spherical shell One end.In the present embodiment, the closing coil makes in the following manner:First, it is coated with metal on the oviduct 20,20 ' surfaces Film;2nd, etched on the metallic film, form loudspeaker pipe surface coaxial, adjacent to one another and mutually exhausted with oviduct The wire loop of edge;Each wire loop forms a closing coil, two sections of oviducts 20,20 ' and other Surface closing coil 3,3 ' it is full symmetric.Closing coil is made in that way, and assembly difficulty can be greatly reduced, And it can be distributed the closing coil on oviduct surface and realize the optimal uniformity, optimal symmetry, and optimal consistency.
The center of inside of the symmetrical horn pipe fixes one section of cylindricality electromagnet 4 coaxial with the symmetrical horn pipe, described 4 surface wrap of electromagnet has magnet exciting coil, and the magnet exciting coil is coupled in the power amplifier module in the pedestal 1(It is not shown) And power module(It is not shown).
At work, the tone currents that source of sound produces is used as institute to the above-mentioned open speaker of omnirange after power amplifier module amplifies State the exciting current of electromagnet 4, the magnetic field that electromagnet produces is with tone currents real-time change, and the magnetic field is from the two of electromagnet 4 End is illustrated in horn-like to external radiation, such as dotted arrow at 4 both ends of electromagnet in Fig. 1 respectively, that is, magnetic field intensity is described in Oviduct axis outwards gradually weakens, so that each closing coil 3,3 ' on oviduct is in a gradient fields all the time, Then according to Lenz's law, when tone currents instantaneous value increase, global magnetic field intensity enhancing, each closing coil is displaced outwardly, with Suppress the increase of closing coil magnetic flux;In the present embodiment one, since two sections of oviducts 20,20 ' directly connect in spherical shell 2 Connect, so oviduct 20,20 ' is mutually kept in check, stretching can not be directed out, in the case, oviduct 20,20 ' will be such as Fig. 1 Middle solid arrow is illustrated, and tube wall is drawn close to oviduct axis, so that closing coil 3,3 ' moves beyond spatially obtaining;This During, the caliber equivalent to oviduct is shunk, therefore, can also be along the whole symmetrical horn pipe in order to more smooth Busbar, make at least together along busbar extend fold 21 so that the caliber of oviduct acts freely.Conversely, work as audio Current instantaneous value reduces, during global magnetic field remitted its fury, each closing coil counter motion.Hereby it is achieved that closing coil 3,3 ' Tone currents is followed with oviduct 20,20 ' and is vibrated;The vibration is symmetrically transferred to whole spherical shell by the symmetrical horn pipe 2, so that the sphere of whole spherical shell 2 carries out the external world comprehensive sounding, realization produces basically identical in all directions Auditory effect;Also, since vibrational energy is completely to external diffusion, vibration area is big, and spatial symmetry is good, so acoustic energy efficiency Height, sounding power are big.
Embodiment two:
In the embodiment two shown in Fig. 2, it is with the difference of embodiment one:The oviduct 20,20 ' is no longer The fold 21 in embodiment one is made, and two sections of oviducts 20,20 ' is realized connection by one section of ripple rubber tube 22;By this Scheme, not only realizes and two sections of the symmetrical of oviduct 20,20 ' is fixed, improve the structural stability of whole system, and make a left side When the oviducts 20 of right both sides, 20 ' symmetric vibration, do not keep in check mutually in the axial direction, whole spherical shell can be further improved Amplitude.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.

Claims (6)

1. a kind of open speaker of omnirange, including pedestal(1), it is characterised in that:A vibrating diaphragm is fixed on the pedestal to form Spherical shell(2), the spherical shell(2)Left and right sides surface symmetrically to centre of sphere direction be recessed, formed two sections of symmetrical loudspeaker Pipe(20、20 ’ ), this two sections symmetrical oviducts are connected with each other inside spherical shell, form symmetrical horn pipe;Two sections of loudspeaker Pipe(20、20’)Surface be respectively fixed with the closing coil coaxial with oviduct(3、3 ’ ), the closing coil is from oviduct Oviduct is distributed to close to one end of spherical shell sphere close to one end of the spherical shell centre of sphere;The center of inside of the symmetrical horn pipe Fix one section of cylindricality electromagnet coaxial with the symmetrical horn pipe(4), the electromagnet(4)Surface wrap has magnet exciting coil, institute Magnet exciting coil is stated to be coupled in arranged on the pedestal(1)Interior power amplifier module and power module.
2. the open speaker of omnirange according to claim 1, it is characterised in that:At least one of the symmetrical horn pipe Busbar, is made to sense along the fold of busbar extension(21).
3. the open speaker of omnirange according to claim 1, it is characterised in that:Oviduct described in two sections(20、20 ’ )Pass through one section of ripple rubber tube(22)Realize connection.
4. the open speaker of omnirange as claimed in any of claims 1 to 3, it is characterised in that:Described in each section Oviduct(20、20 ’ )On be respectively equipped with two or more closing coil(3、3’), each closing coil is in loop, is nested with loudspeaker Pipe surface.
5. the open speaker of omnirange according to claim 4, it is characterised in that:The closing coil is a metal Ring.
6. the open speaker of omnirange as claimed in any of claims 1 to 3, it is characterised in that:The closed line Circle(3、3 ’ )Make in the following manner:First, in the oviduct(20、20’)Surface is coated with metallic film;2nd, in the gold Belong to and being etched on film, loudspeaker pipe surface is formed and oviduct is coaxial, wire loop adjacent to one another and mutually insulated;Each institute State wire loop and form a closing coil.
CN201510127017.8A 2015-03-23 2015-03-23 The open speaker of omnirange Active CN104822107B (en)

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Application Number Priority Date Filing Date Title
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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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CN104822107B true CN104822107B (en) 2018-05-15

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106937226B (en) * 2017-05-13 2019-07-30 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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142462A1 (en) * 1980-10-28 1982-05-27 Hans-Peter 7000 Stuttgart Pfeiffer Loudspeaker device
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 spherical vibrating diaphragm loudspeaker
CN101867859A (en) * 2009-04-15 2010-10-20 财团法人工业技术研究院 electrostatic speaker
CN201813522U (en) * 2010-07-05 2011-04-27 朱国祥 Push-pull type loudspeaker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503515B1 (en) * 1981-04-01 1985-12-27 Klein Siegfried OMNIDIRECTIONAL SPEAKER FOR ACUTE SOUND SPECTRUM FREQUENCIES
WO2002074009A1 (en) * 2001-03-09 2002-09-19 Akito Hanada Electroacoustic converter
KR100547357B1 (en) * 2004-03-30 2006-01-26 삼성전기주식회사 Speaker for mobile terminal and manufacturing method thereof
CN103714945A (en) * 2013-12-25 2014-04-09 黄伟嫦 Electronic component and manufacturing method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3142462A1 (en) * 1980-10-28 1982-05-27 Hans-Peter 7000 Stuttgart Pfeiffer Loudspeaker device
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 spherical vibrating diaphragm loudspeaker
CN101867859A (en) * 2009-04-15 2010-10-20 财团法人工业技术研究院 electrostatic speaker
CN201813522U (en) * 2010-07-05 2011-04-27 朱国祥 Push-pull type loudspeaker

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Inventor after: He Chaojian

Inventor before: Ma Genchang

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Address after: 528400 peach blossom sand Industrial Zone, Min An Road, Xiaolan Town, Zhongshan, Guangdong

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Address before: 210000 Nanjing, Jiangsu Province, Yuhuatai District, software Avenue, No. 186

Applicant before: Ma Genchang

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