CN102833656A - Moving iron unit for loudspeaker - Google Patents

Moving iron unit for loudspeaker Download PDF

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Publication number
CN102833656A
CN102833656A CN2012103187256A CN201210318725A CN102833656A CN 102833656 A CN102833656 A CN 102833656A CN 2012103187256 A CN2012103187256 A CN 2012103187256A CN 201210318725 A CN201210318725 A CN 201210318725A CN 102833656 A CN102833656 A CN 102833656A
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CN
China
Prior art keywords
housing
moving iron
house
iron unit
shell
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Pending
Application number
CN2012103187256A
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Chinese (zh)
Inventor
何朝阳
Original Assignee
何朝阳
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Publication date
Application filed by 何朝阳 filed Critical 何朝阳
Priority to CN2012103187256A priority Critical patent/CN102833656A/en
Publication of CN102833656A publication Critical patent/CN102833656A/en
Pending legal-status Critical Current

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Abstract

The invention provides a moving iron unit for a loudspeaker. The moving iron unit comprises a shielding housing, a balance armature, a magnet, an electromagnetic coil, a vibrating membrane, a lead, and a voice guide pipe, wherein the balance armature, the magnet, the electromagnetic coil, the vibrating membrane, the lead and the voice guide pipe are placed in the shielding housing; and the moving iron unit is characterized in that the shielding housing is divided into an upper housing and a lower housing which are connected in a manner of embedding. According to the moving iron unit for the loudspeaker, the upper housing and the lower housing are abutted by embedding, so that the precision in abutting of the upper housing and the lower housing is reduced, and the working efficiency is improved. The upper housing and the lower housing are made of plastic and can be manufactured in an injection molding way. Compared with the metal materials, when plastic injection molding is carried out to manufacture the upper housing and the lower housing, the cost is lowered, and the processing technology is simple. The welding process can be avoided due to the use of the plastic housings.

Description

A kind of moving iron unit that is used for loudspeaker arrangement
Technical field
The present invention relates to the phonation unit of usefulness such as loud speaker, loudspeaker, earphone, refer in particular to the moving-iron type phonation unit.
Background technology
Moving iron earphone conduct is mid-to high-end product in the market; Critical component takes place for moving the iron unit in it in the moving iron earphone; It is to moving-coil earphone; Advantages such as frequency response curve is more stable, sensitivity is higher, pleasant deeply, resistance is little, the music-lover who is paid attention to tonequality gradually accepts the institute's fan of paying attention to.Its occurring principle of moving iron unit is the electromagnetic energy conversion, and also promptly moving iron unit is a sound transducer.Through sending sound to solenoid with the ac signal pattern; The electromagnetism conduction that solenoid produces balances armature; The magnet that is positioned at the balanced armature both sides drives the balanced armature motion under magneticaction; Ac signal have have by force a little less than, then its up-down vibration amplitude of balanced armature is also different thereupon.Balanced armature one end is connected with vibrating diaphragm through lead, and vibrating diaphragm is also done the corresponding frequencies vibration thereupon under the vibration of balanced armature, thereby agitates surrounding air to do corresponding sports, conduction sound.
The shield shell of present moving iron unit is divided into lower house, and the interface physical dimension of lower house is identical it on, and interface is the plane, butt joint afterwards through weld or gluing connect fixing.Because the interface physical dimension of last lower house is identical, and all is the plane, when butt joint, last lower house is difficult to the location, does not note slightly causing docking port place position deviation, influences presentation quality.And, adopting this structure, last lower house can only adopt metal material, otherwise, can't weld.And the difficulty of docking port place welding is bigger, and the welding operation required precision is very high, so crudy is difficult to guarantee.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of moving iron unit, and it can avoid this step of wire bonds, when having saved the Welder, has also guaranteed product quality.
In order to solve the problems of the technologies described above; Technical scheme provided by the invention is a kind of moving iron unit that is used for loudspeaker arrangement; It comprises shield shell; Be arranged in balanced armature, magnet, solenoid, vibrating diaphragm, lead, the sound guide tube of said shield shell, it is characterized in that being divided into upper shell and lower house at said shield shell, said upper shell and lower house are tightly connected through nested mode.
Offer the spacing platform of a circle on the madial wall at the docking port place of said lower house, said upper shell sticks in the said spacing platform and is tightly connected with said lower house.
Install at said lower house and offer the stopper slot that said sound guide tube is installed on the lateral wall of said sound guide tube.
Said balanced armature is U type or mountain type.
Said solenoid winding is on said balanced armature.
Said magnet is two block permanent magnets, is fixed in the said shield shell through support respectively, leaves the gap between said two blocks of magnet.
Said support is the square iron of a hollow, and said magnet is fixed on the upper and lower surface of hollow of said square iron.
Said upper shell and lower house material are metal or plastics.
Moving iron of the present invention unit because last lower house adopts nested mode to dock, has reduced the merging precision of last lower house butt joint, has improved operating efficiency.When the upper and lower casing material is plastics, can make through injection mo(u)lding, adopt injection molding, reduce than the upper and lower casing cost that adopts metal material to make, processing technology is simple.And the employing plastic casing can be avoided welding sequence, only need stick with glue to be sealedly connected and fixed to get final product.Also can adopt plastic material by lower house, upper shell adopts metal material, when last lower house connects, connects fixing through glue sealing.
Description of drawings
Fig. 1 the present invention faces the sectional structure sketch map in moving iron unit
The side-looking sectional structure sketch map of the moving iron unit of Fig. 2 the present invention
Embodiment
To the technical scheme of above-mentioned proposition, lift a preferred embodiment at present and combine diagram to specify.Referring to Fig. 1, Fig. 2, moving iron of the present invention unit comprises shield shell, magnet, solenoid, balanced armature, wherein:
Shield shell comprises upper shell 1 and lower house 2, and it can adopt metal material to make, and also can be plastic production.Offer the spacing platform 21 of a circle on the madial wall at the docking port place of lower house 2, the butt joint plane of a side 22 of lower house 2 that sound guide tube 8 is installed is concordant with spacing platform 21.On the lateral wall of a side 22 of lower house 2, offer sound guide tube 3 is carried out the stopper slot 23 that the position limits.The profile of upper shell 1 is satisfied just in time to stick in the spacing platform 21.During assembling, upper shell 1 just in time is stuck on the spacing platform 21 of lower house 2, makes lower house form nested structure, the chucking back through gluing carry out airtight fixing.The degree of depth that stopper slot 23 is offered satisfies; Promptly perpendicular to the degree of depth of lower house sidewall direction; When upper shell stick into lower house airtight fixing after, the lateral wall of lower house of lateral wall and stopper slot 23 that is positioned at the upper shell of stopper slot 23 1 sides is in a fitting plane.When sound guide tube 8 is stuck in stopper slot 23 places, and when being fixed on the lateral wall of lower house, sound guide tube 8 closely contacts with the contact-making surface of last lower house, guarantees the contact seal property between sound guide tube and the last lower house.Because last lower house is a nested form, therefore, last lower house can adopt the plastic material injection mo(u)lding; Also can adopt metal material; Utilize glue to seal connection through last lower house after nested, required precision and welding requirements when having avoided butt joint only need to carry out adhesive sealing after nested and connect fixing getting final product; Make things convenient for operation, saved assembling process time and assembling difficulty of processing.
Magnet 3 is two blocks of permanent magnets that magnetic pole is inequality.At the shield shell internal fixation square iron 4 of one hollow is arranged, magnet 3 is separately fixed on the inside upper and lower surface of square iron 4, between two blocks of magnet 3, leaves the gap.Square iron 4 is as the support of fixed magnet 3 usefulness, and this support also can be other shapes.
Balanced armature 5, balanced armature 5 profiles are the mountain type in the present embodiment, and it comprises two side tabs and is positioned at middle shell fragment 51; The free end of shell fragment passes the gap between the magnet 3; On the other end of shell fragment, promptly with a end that two side tabs are connected on, be arranged with solenoid (not shown).Two side tabs of balanced armature 5 position balanced armature 5 through being welded to connect on the lateral wall of square iron 4.One end of lead 6 is fixed by welding in the free end of shell fragment, and its other end is connected with vibrating diaphragm 7 through welding or gluing mode.Vibrating diaphragm 7 is positioned at square iron 4, magnet 3, lead 6, an and side of balanced armature 5, and leaves the gap between vibrating diaphragm 7 and square iron, magnet, the balanced armature.
Balanced armature 5 also can be the U type; When it was the U type, U type one side was fixed on the lateral wall of square iron, and the free end of the opposite side of U type passes the gap between the magnet 3; Lead one end is welded on this free end, its other end with vibrating diaphragm through the welding or gluing the connection.
Operation principle: ac signal is transferred to solenoid; The magnetic field that solenoid produces conducts to shell fragment; Make shell fragment generation magnetic polarization, along with the pole change and the Strength Changes of shell fragment, the gap internal vibration under the shell fragment magneticaction between magnet 3; And this vibration frequency is conducted to vibrating diaphragm through lead, agitate ambient air that sound is sent out through sound guide tube through vibrating diaphragm.
Moving iron of the present invention unit, its structure is simpler, makes easylier, when satisfying performance requirement, has reduced production cost and process time.

Claims (8)

1. moving iron unit that is used for loudspeaker arrangement; It comprises shield shell; Be arranged in balanced armature, magnet, solenoid, vibrating diaphragm, lead, the sound guide tube of said shield shell; It is characterized in that being divided into upper shell and lower house at said shield shell, said upper shell and lower house are tightly connected through nested mode.
2. the moving iron unit that is used for loudspeaker arrangement according to claim 1 is characterized in that offering the spacing platform of a circle on the madial wall at docking port place of said lower house, and said upper shell sticks in the said spacing platform and is tightly connected with said lower house.
3. the moving iron unit that is used for loudspeaker arrangement according to claim 2 is characterized in that on said lower house is installed the lateral wall of said sound guide tube, offering the stopper slot that said sound guide tube is installed.
4. according to claim 1,2,3 arbitrary described moving iron unit that are used for loudspeaker arrangement, it is characterized in that said balanced armature is U type or mountain type.
5. the moving iron unit that is used for loudspeaker arrangement according to claim 1 is characterized in that said solenoid winding is on said balanced armature.
6. the moving iron unit that is used for loudspeaker arrangement according to claim 1 is characterized in that said magnet is two block permanent magnets, is fixed in the said shield shell through support respectively, leaves the gap between said two blocks of magnet.
7. the moving iron unit that is used for loudspeaker arrangement according to claim 6 is characterized in that said support is the square iron of a hollow, and said magnet is fixed on the upper and lower surface of hollow of said square iron.
8. according to claim 1,2,3 arbitrary described moving iron unit that are used for loudspeaker arrangement, it is characterized in that said upper shell and lower house material are metal or plastics.
CN2012103187256A 2012-09-03 2012-09-03 Moving iron unit for loudspeaker Pending CN102833656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012103187256A CN102833656A (en) 2012-09-03 2012-09-03 Moving iron unit for loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012103187256A CN102833656A (en) 2012-09-03 2012-09-03 Moving iron unit for loudspeaker

Publications (1)

Publication Number Publication Date
CN102833656A true CN102833656A (en) 2012-12-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012103187256A Pending CN102833656A (en) 2012-09-03 2012-09-03 Moving iron unit for loudspeaker

Country Status (1)

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CN (1) CN102833656A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103079139A (en) * 2013-01-31 2013-05-01 苏州恒听电子有限公司 Anti-collision falling-resisting type telephone receiver
CN103079120A (en) * 2012-12-25 2013-05-01 苏州恒听电子有限公司 Shielding outer shell with positioning chassis and receiver with shielding outer shell
CN103079159A (en) * 2012-12-25 2013-05-01 苏州恒听电子有限公司 Shielding casing for moving iron unit and assisted listening equipment using shielding casing
CN104507025A (en) * 2014-12-31 2015-04-08 苏州恒听电子有限公司 Novel small-size telephone receiver
CN104507024A (en) * 2014-12-16 2015-04-08 苏州赫里翁电子科技有限公司 Receiver with connecting rod
CN105657599A (en) * 2016-03-30 2016-06-08 苏州倍声声学技术有限公司 Moving iron earphone module

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1049353A2 (en) * 1999-04-26 2000-11-02 Matsushita Electric Industrial Co., Ltd. Bass reproduction speaker apparatus
CN1296373A (en) * 1999-11-15 2001-05-23 西门子测听技术有限责任公司 Electro-magnetic converter used in deaf-aid sounding especial in electronic deaf-aid sounding
CN1954639A (en) * 2004-05-14 2007-04-25 桑尼奥荷兰有限公司 Dual diaphragm electroacoustic transducer
KR20080034365A (en) * 2006-10-16 2008-04-21 남문희 The moving magnet type microspeaker
CN101606395A (en) * 2007-02-06 2009-12-16 星精密株式会社 Insertion type earphone
CN201663674U (en) * 2010-03-19 2010-12-01 富港电子(东莞)有限公司 Damping-article changed type earphones
CN201789611U (en) * 2010-08-20 2011-04-06 富港电子(东莞)有限公司 Adjustable loudspeaker box
CN102119536A (en) * 2008-07-17 2011-07-06 新传感器有限公司 Inertial vibration exciter
CN102364964A (en) * 2010-06-17 2012-02-29 索尼公司 Acoustic conversion device and acoustic conversion device assembly method
CN202799140U (en) * 2012-09-03 2013-03-13 何朝阳 Moving iron unit for sound amplifying device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1049353A2 (en) * 1999-04-26 2000-11-02 Matsushita Electric Industrial Co., Ltd. Bass reproduction speaker apparatus
CN1296373A (en) * 1999-11-15 2001-05-23 西门子测听技术有限责任公司 Electro-magnetic converter used in deaf-aid sounding especial in electronic deaf-aid sounding
CN1954639A (en) * 2004-05-14 2007-04-25 桑尼奥荷兰有限公司 Dual diaphragm electroacoustic transducer
KR20080034365A (en) * 2006-10-16 2008-04-21 남문희 The moving magnet type microspeaker
CN101606395A (en) * 2007-02-06 2009-12-16 星精密株式会社 Insertion type earphone
CN102119536A (en) * 2008-07-17 2011-07-06 新传感器有限公司 Inertial vibration exciter
CN201663674U (en) * 2010-03-19 2010-12-01 富港电子(东莞)有限公司 Damping-article changed type earphones
CN102364964A (en) * 2010-06-17 2012-02-29 索尼公司 Acoustic conversion device and acoustic conversion device assembly method
CN201789611U (en) * 2010-08-20 2011-04-06 富港电子(东莞)有限公司 Adjustable loudspeaker box
CN202799140U (en) * 2012-09-03 2013-03-13 何朝阳 Moving iron unit for sound amplifying device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103079120A (en) * 2012-12-25 2013-05-01 苏州恒听电子有限公司 Shielding outer shell with positioning chassis and receiver with shielding outer shell
CN103079159A (en) * 2012-12-25 2013-05-01 苏州恒听电子有限公司 Shielding casing for moving iron unit and assisted listening equipment using shielding casing
CN103079120B (en) * 2012-12-25 2015-11-25 苏州恒听电子有限公司 A kind of screening can with positioning chassis and the receiver with this screening can
CN103079139A (en) * 2013-01-31 2013-05-01 苏州恒听电子有限公司 Anti-collision falling-resisting type telephone receiver
CN103079139B (en) * 2013-01-31 2016-05-18 苏州恒听电子有限公司 The crashproof anti-type receiver that falls
CN104507024A (en) * 2014-12-16 2015-04-08 苏州赫里翁电子科技有限公司 Receiver with connecting rod
CN104507025A (en) * 2014-12-31 2015-04-08 苏州恒听电子有限公司 Novel small-size telephone receiver
CN105657599A (en) * 2016-03-30 2016-06-08 苏州倍声声学技术有限公司 Moving iron earphone module

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Application publication date: 20121219