CN206506703U - A kind of electroacoustic structure of magnetic altogether - Google Patents

A kind of electroacoustic structure of magnetic altogether Download PDF

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Publication number
CN206506703U
CN206506703U CN201720208275.3U CN201720208275U CN206506703U CN 206506703 U CN206506703 U CN 206506703U CN 201720208275 U CN201720208275 U CN 201720208275U CN 206506703 U CN206506703 U CN 206506703U
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CN
China
Prior art keywords
magnet
magnetic
voice coil
receiver
magnetic circuit
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Expired - Fee Related
Application number
CN201720208275.3U
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Chinese (zh)
Inventor
吴振兴
沈伟
沈一伟
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Xiamen Great Sound Technology Co ltd
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Chongqing Top Technology Co Ltd
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Priority to CN201720208275.3U priority Critical patent/CN206506703U/en
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current
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Abstract

A kind of electroacoustic structure of magnetic altogether, including pedestal, receiver vibrational system, horn vibration system and magnetic circuit system, the pedestal have cavity volume, and the magnetic circuit system is located in the cavity volume;The magnetic circuit system includes offering mounting groove in the middle part of the first magnet and the second magnet, second magnet, and first magnet is stretched into or is embedded in the mounting groove, and gap is left between the side wall of first magnet and the side wall of the mounting groove;The receiver vibrational system has receiver voice coil loudspeaker voice coil, and the horn vibration system has speaker voice coil, and ring is located at around first magnet and second magnet respectively for the speaker voice coil and the receiver voice coil loudspeaker voice coil.By allowing horn vibration system and receiver vibrational system to share a magnetic circuit system, it is achieved thereby that horn structure is gathered together with earphone structure.The thickness and volume of horn structure and earphone structure are reduced, mobile phone space can be saved, the utilization rate in mobile phone space is improved.

Description

A kind of electroacoustic structure of magnetic altogether
Technical field
The present invention relates to a kind of electroacoustic structure of magnetic altogether.
Background technology
Flexible film, coil and permanent magnet in loudspeaker, elastic film are similar with the effect of eardrum in human ear, and it is sent out Sound, film can vibrate;Film is connected to coil, and it also has the effect for coil being retracted initial position except shock effect.When thin When film vibrates, band moving winding vibration, the relative position change of coil and permanent magnet, this make it that the magnetic field through coil becomes Change, changes of magnetic field can produce induced electromotive force in coil, also just generate electric current.Specific sound has specific vibration, Specific vibration produces the electric current of particular form.So loudspeaker just sound " coding " into electric current form.
The principle of receiver is the inverse process of loudspeaker, and structure is also about the same.Also there is a film in receiver, film is connected to One coil, equally also there is a block permanent magnet.The electric current (the such as microphone electric current that just " coding " completes) of particular form flows through The coil of receiver, the magnetic field for so allowing for coil generation changes, and then the distance of permanent magnet and coil can change. Vibration of thin membrane has thus been driven, sound is sent.
Current mobile phone, the direction of flat board development are to pursue ultra-thin portable, account for screen than big etc., traditional mobile phone need to be equipped with one Individual loudspeaker and receiver, most thin product thickness is 2.5mm (main flow 3.0mm) to Mobile phone horn on the market, and receiver most thin product is 2.0mm, although the placement that can stagger (i.e. upper, loudspeaker are under for receiver), but profile will be by when the arrangement of mobile phone component Elongate.
The content of the invention
It is an object of the invention to the shortcoming for overcoming prior art, there is provided a kind of electroacoustic structure of magnetic altogether
In order to solve the above technical problems, present invention employs following technical measures:
A kind of electroacoustic structure of magnetic altogether, including pedestal, receiver vibrational system, horn vibration system and magnetic circuit system, it is described Pedestal has cavity volume, and the magnetic circuit system is located in the cavity volume, and the receiver vibrational system is located at the one of the magnetic circuit system Side, the relative opposite side for being located at the magnetic circuit system of the horn vibration system;The magnetic circuit system includes the first magnet and the Mounting groove is offered in the middle part of two magnet, second magnet, first magnet is stretched into or is embedded in the mounting groove, institute State and leave gap between the side wall of the first magnet and the side wall of the mounting groove;The receiver vibrational system has receiver voice coil loudspeaker voice coil, The horn vibration system has speaker voice coil, and ring is located at first magnet to the speaker voice coil respectively with the receiver voice coil loudspeaker voice coil Around second magnet.
The present invention can also be further perfect by following technical measures:
As a further improvement, the opening of the mounting groove is towards the horn vibration system, the speaker voice coil is located at At the position in the gap, the loudspeaker sound ring is located at around first magnet, and the speaker voice coil is located at described the Between one magnet and second magnet;The receiver voice coil loudspeaker voice coil respective rings are located at around second magnet.
As a further improvement, the magnetic circuit system also has the 3rd magnet, the 3rd magnet ring is located at described second Around magnet, the receiver voice coil loudspeaker voice coil is located between second magnet and the 3rd magnet.
As a further improvement, the magnetic pole of the magnetic pole of first magnet and second magnet is reversed.
As a further improvement, second magnet has multiple magnetic patch, it is connected with each other between each described magnetic patch, each The mounting groove is formed in the middle of the structure that the individual magnetic patch is surrounded.
As a further improvement, first magnet is bonded on second magnet.
As a further improvement, first magnet stretches out the mounting groove.
As a further improvement, the pedestal includes main body and upper lid, the upper lid has what is bent towards the main body Flanging, the flanging is stretched into the cavity volume.
As a further improvement, the receiver vibrational system also has receiver vibrating diaphragm, the horn vibration system also has Loudspeaker diaphragm.
As a further improvement, first magnet uses permanent magnet with second magnet, magnetic conduction material is internally provided with Material.
Compared with prior art, the present invention has advantages below:
By the way that the horn magnetic circuit system in traditional structure and receiver magnetic circuit system are united two into one so that horn vibration system A magnetic circuit system is shared with receiver vibrational system, it is achieved thereby that horn structure is gathered together with earphone structure.Reduce The thickness and volume of horn structure and earphone structure, can save mobile phone space, improve the utilization rate in mobile phone space, same to time Save the cost of labor of cost of material and production.
If in addition, the tow sides of magnetic circuit system are all used as loudspeaker, can just take into account low on a product Frequency and medium-high frequency, while can be with VOLUME UP, so as to improve the tonequality and volume of loudspeaker.
Brief description of the drawings
Accompanying drawing 1 is the schematic perspective view of the electroacoustic structure of the common magnetic of the present invention;
Accompanying drawing 2 is the decomposing schematic representation of the electroacoustic structure of common magnetic shown in accompanying drawing 1;
Accompanying drawing 3 is the sectional view in the A-A directions along along accompanying drawing 1;
Accompanying drawing 4 is the decomposing schematic representation of magnetic circuit system in the electroacoustic structure of common magnetic shown in accompanying drawing 2.
Main element symbol description
The flanging 111 of 11 main body of lid, 12 projection connecting portion, 13 cavity volume 14 on pedestal 10
The speaker voice coil 22 of 20 Loudspeaker diaphragm of horn vibration system 21
The receiver voice coil loudspeaker voice coil 32 of 30 receiver vibrating diaphragm of receiver vibrational system 31
The mounting groove 421 of 40 first 41 second magnet of magnet, 42 gap of magnetic circuit system 43
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is refer to, the electroacoustic structure of magnetic includes pedestal 10, receiver vibrational system 30, horn vibration system 20 and magnetic altogether Road system 40.The pedestal 10 has cavity volume 14, and the magnetic circuit system 40 is located in the cavity volume 14.The receiver vibrational system 30 are located at the side of the magnetic circuit system 40, the relative opposite side for being located at the magnetic circuit system 40 of the horn vibration system 20. The horn vibration system 20 includes speaker voice coil 22 and Loudspeaker diaphragm 21, and the receiver vibrational system 30 includes receiver voice coil loudspeaker voice coil 32 With receiver vibrating diaphragm 31.It is preferred that, the top of the pedestal 10 is with being respectively arranged below with projection connecting portion 13, the Loudspeaker diaphragm 21 It is fixed on respectively by projection connecting portion 13 on the pedestal 10 with the receiver vibrating diaphragm 31.
Fig. 2 be refer to Fig. 4, the magnetic circuit system 40 includes the first magnet 41 and the second magnet 42, second magnet 42 middle part offers mounting groove 421, and first magnet 41 is stretched into or is embedded in the mounting groove 421, first magnetic Gap 43 is left between the side wall of iron 41 and the side wall of the mounting groove 421;The receiver vibrational system 30 has receiver voice coil loudspeaker voice coil 32, the horn vibration system 20 has speaker voice coil 22, and ring is located at the speaker voice coil 22 respectively with the receiver voice coil loudspeaker voice coil 32 Around first magnet 41 and second magnet 42.By by the horn magnetic circuit system 40 in traditional structure and receiver magnetic Road system 40 unites two into one so that horn vibration system 20 shares a magnetic circuit system 40 with receiver vibrational system 30, so that real Show and horn structure has gathered together with earphone structure.The thickness and volume of horn structure and earphone structure are reduced, can be with Save mobile phone space.
It is preferred that, the opening of the mounting groove 421 is towards the horn vibration system 20, and the speaker voice coil 22 is located at institute At the position for stating gap 43, the ring of speaker voice coil 22 is located at around first magnet 41, and the speaker voice coil 22 is located at Between first magnet 41 and second magnet 42;The respective rings of receiver voice coil loudspeaker voice coil 32 are located at the week of second magnet 42 Enclose.So that horn structure has larger magnetic field under the collective effect of first magnet 41 and second magnet 42, from And the volume of horn structure can be increased.And low frequency and medium-high frequency are taken into account, improve the tonequality of horn structure.Wherein, with magnetic circuit system Position centered on system 40, the corresponding Loudspeaker diaphragm 21 is located at close to the side of speaker voice coil 22, the receiver vibrating diaphragm 31 Positioned at close to the side of receiver voice coil loudspeaker voice coil 32.
It is furthermore preferred that the magnetic circuit system 40 also has the 3rd magnet (not shown), the 3rd magnet (not shown) ring It is located at around second magnet 42, the receiver voice coil loudspeaker voice coil 32 is located at second magnet 42, and (figure is not with the 3rd magnet Show) between.So, the intensity in magnetic field where earphone structure also can increase it under the collective effect of multiple magnet, so as to improve The volume of earphone structure.Wherein, in the magnetic circuit system 40 first magnet 41, the second magnet 42, the 3rd magnet (not shown) it Between by the way of connecting with one another closely, the magnet of small volume is embedded in or stretched into the larger magnet of volume so that magnetic circuit The volume of system 40 and thickness are smaller.
Fig. 4 is refer to, first magnet 41 uses permanent magnet with second magnet 42, is internally provided with magnetic conduction material Material.The magnetic pole of the magnetic pole of first magnet 41 and second magnet 42 is reversed.As illustrated, when first magnet 41 be S poles close to the side of Loudspeaker diaphragm 21, then second magnet 42 is S poles close to the side of receiver vibrating diaphragm 31.
Fig. 3 and Fig. 4 are refer to, second magnet 42 can be made into integration.It is preferred that, second magnet 42 has many It is connected with each other between individual magnetic patch, each described magnetic patch, the mounting groove is formed in the middle of the structure that each described magnetic patch is surrounded 421.Second magnet 42 of this structure can also strengthen magnetic field to a certain extent.
Fig. 3 is refer to, first magnet 41 is bonded on second magnet 42 so that first magnet 41 and institute The second magnet 42 is stated to gather together.First magnet 41 stretches out the mounting groove 421.
Fig. 2 and Fig. 3 are refer to, the pedestal 10 includes main body 12 and upper lid 11, and the upper lid 11 has towards the master The flanging 111 that body 12 is bent, the flanging 111 is stretched into the cavity volume 14.The Loudspeaker diaphragm 21 is fixed on the upper lid 11 On, the receiver vibrating diaphragm 31 is fixed in the main body 12.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.

Claims (10)

1. a kind of electroacoustic structure of magnetic altogether, it is characterised in that including pedestal, receiver vibrational system, horn vibration system and magnetic circuit System, the pedestal has cavity volume, and the magnetic circuit system is located in the cavity volume, and the receiver vibrational system is located at the magnetic circuit The side of system, the relative opposite side for being located at the magnetic circuit system of the horn vibration system;The magnetic circuit system includes first Mounting groove is offered in the middle part of magnet and the second magnet, second magnet, first magnet is stretched into or the embedded peace In tankage, gap is left between the side wall of first magnet and the side wall of the mounting groove;The receiver vibrational system has Receiver voice coil loudspeaker voice coil, the horn vibration system has speaker voice coil, and ring is located at institute to the speaker voice coil respectively with the receiver voice coil loudspeaker voice coil State around the first magnet and second magnet.
2. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that the opening of the mounting groove is towards the loudspeaker Vibrational system, the speaker voice coil is located at the position in the gap, and the loudspeaker sound ring is located at first magnet Around, the speaker voice coil is located between first magnet and second magnet;The receiver voice coil loudspeaker voice coil respective rings are located at institute State around the second magnet.
3. the electroacoustic structure of magnetic altogether according to claim 2, it is characterised in that the magnetic circuit system also has the 3rd magnetic Iron, the 3rd magnet ring is located at around second magnet, and the receiver voice coil loudspeaker voice coil is located at second magnet and described the Between three magnet.
4. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that the magnetic pole of first magnet and described the The magnetic pole of two magnet is reversed.
5. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that second magnet has multiple magnetic patch, It is connected with each other between each described magnetic patch, the mounting groove is formed in the middle of the structure that each described magnetic patch is surrounded.
6. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that first magnet is bonded in described second On magnet.
7. the electroacoustic structure of magnetic altogether according to claim 6, it is characterised in that first magnet stretches out described install Groove.
8. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that the pedestal includes main body and upper lid, institute Lid is stated with the flanging bent towards the main body, the flanging is stretched into the cavity volume.
9. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that the receiver vibrational system also has receiver Vibrating diaphragm, the horn vibration system also has Loudspeaker diaphragm.
10. the electroacoustic structure of magnetic altogether according to claim 1, it is characterised in that first magnet and second magnetic Iron uses permanent magnet, is internally provided with permeability magnetic material.
CN201720208275.3U 2017-03-06 2017-03-06 A kind of electroacoustic structure of magnetic altogether Expired - Fee Related CN206506703U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720208275.3U CN206506703U (en) 2017-03-06 2017-03-06 A kind of electroacoustic structure of magnetic altogether

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720208275.3U CN206506703U (en) 2017-03-06 2017-03-06 A kind of electroacoustic structure of magnetic altogether

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106851503A (en) * 2017-03-06 2017-06-13 重庆市冠音泰科技有限公司 A kind of electroacoustic structure of magnetic altogether

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106851503A (en) * 2017-03-06 2017-06-13 重庆市冠音泰科技有限公司 A kind of electroacoustic structure of magnetic altogether

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Effective date of registration: 20170926

Address after: 361000 Fujian Province, Xiamen city Tongan Industrial Zone Siming Park No. 103

Patentee after: XIAMEN GREAT SOUND TECHNOLOGY Co.,Ltd.

Address before: 404100 Chongqing Road, Wanzhou, No. 2

Patentee before: CHONGQING GUANYINTAI TECHNOLOGY CO.,LTD.

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Denomination of utility model: Co-magnetic electric-acoustic structure

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Denomination of utility model: A common magnetic electroacoustic structure

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