CN105472513B - Using the microphone device of sound membrane structure - Google Patents

Using the microphone device of sound membrane structure Download PDF

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Publication number
CN105472513B
CN105472513B CN201610011971.5A CN201610011971A CN105472513B CN 105472513 B CN105472513 B CN 105472513B CN 201610011971 A CN201610011971 A CN 201610011971A CN 105472513 B CN105472513 B CN 105472513B
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CN
China
Prior art keywords
siderosphere
membrane structure
sound membrane
annular groove
voice coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610011971.5A
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Chinese (zh)
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CN105472513A (en
Inventor
马利鵬
令狐荣林
于忠良
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AAC Optoelectronic Changzhou Co Ltd
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AAC Optoelectronic Changzhou Co Ltd
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Priority to CN201610011971.5A priority Critical patent/CN105472513B/en
Publication of CN105472513A publication Critical patent/CN105472513A/en
Application granted granted Critical
Publication of CN105472513B publication Critical patent/CN105472513B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/024Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The present invention relates to a kind of sound membrane structures.The sound membrane structure includes top dome and matches siderosphere, described to be fixed in the top dome with siderosphere.For the present invention by that will be embedded in or be bonded and fixed in top dome with siderosphere, which reduces resonant frequency f while not influencing frequency bandwidth0, to ensure that the performance of microphone device.

Description

Using the microphone device of sound membrane structure
Technical field
The present invention relates to stereo set fields, and in particular to a kind of sound membrane structure and the acoustical generator using the sound membrane structure Part.
Background technique
In recent years, with the development of science and technology, the progress at full speed of especially mobile communication technology, more and more mobile electrons Equipment occurs in people's daily life, such as smart phone, tablet computer, laptop and Rich media player The daily necessity indispensable as people.And in these mobile electronic devices, voice playing device is must can not inside it Few component, the height of voice quality directly affect user experience of the user using these mobile electronic devices when.
Playing device of the sound membrane structure as voice, structure design directly affect voice play quality.In the related technology Sound membrane structure include magnetic circuit system and vibrational system, in vibrational system, when magnetic circuit system drive vibrational system vibration sounding When, the multiple element of magnetic circuit system is in suspended state, generates it in the vibration processes of vibrational system and waves, in different journeys The resonant frequency f for improving microphone device on degree0, to influence the performance of microphone device.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of reduction resonant frequency f0Sound membrane structure and use the sound The microphone device of membrane structure.
Sound membrane structure provided by the invention includes top dome and matches siderosphere, described to be fixed in the top dome with siderosphere.
It is described to use density range for 2- with siderosphere in a kind of preferred embodiment of sound membrane structure provided by the invention 23g/cm3High density material be made.
In a kind of preferred embodiment of sound membrane structure provided by the invention, the top dome include first surface and with it is described The opposite second surface of first surface, it is described to be fixed on the first surface or second surface with siderosphere.
In a kind of preferred embodiment of sound membrane structure provided by the invention, the first surface includes first annular recessed Slot, it is described to be embedded in the first annular groove with siderosphere.
It is described Nian Jie with the second surface with siderosphere in a kind of preferred embodiment of sound membrane structure provided by the invention It is fixed.
In a kind of preferred embodiment of sound membrane structure provided by the invention, the second surface includes that the second annular is recessed Slot, the siderosphere of matching includes interconnecting piece and extension interconnected, and the interconnecting piece is embedded at the second annular groove, institute It states and is connect by the interconnecting piece with the top dome with siderosphere, the extension protrudes from described far from one end of the interconnecting piece Second surface.
In a kind of preferred embodiment of sound membrane structure provided by the invention, the interconnecting piece and the extension are integrally infused It is moulded into type.
Microphone device provided by the invention includes vibrational system, and the vibrational system includes as any one in above-described embodiment The voice coil of sound membrane structure and driving the sound membrane structure movement described in.
It is described to be embedded at the first surface with siderosphere in a kind of preferred embodiment of microphone device provided by the invention First annular groove in, the voice coil is connect with the second surface.
It is described to be set to the second surface with siderosphere in a kind of preferred embodiment of microphone device provided by the invention, The voice coil is connect with siderosphere far from one end of the top dome with described.
Compared to the relevant technologies, sound membrane structure provided by the invention and using the sound membrane structure microphone device in top dome the Siderosphere is matched in a wherein side for one surface and second surface setting, is provided with connecting with voice coil with siderosphere in second surface, and And use density range for 2-23g/cm with siderosphere3High density material be made, by insertion or Nian Jie consolidate with siderosphere and top dome It is fixed, while or else which influences frequency bandwidth, reduce resonant frequency f0, to ensure that the performance of microphone device.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing, in which:
Fig. 1 is the three-dimensional structure diagram of the first embodiment of sound membrane structure provided by the invention;
Fig. 2 is the sectional view along the line A-A of sound membrane structure shown in Fig. 1;
Fig. 3 is the three-dimensional structure diagram of second of embodiment of sound membrane structure provided by the invention;
Fig. 4 is the sectional view along the line B-B of sound membrane structure shown in Fig. 3;
Fig. 5 is the three-dimensional structure diagram of the third embodiment of sound membrane structure provided by the invention;
Fig. 6 is the sectional view along the line C-C of sound membrane structure shown in Fig. 5.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other Embodiment shall fall within the protection scope of the present invention.
The present invention discloses a kind of microphone device, and the microphone device includes magnetic circuit system and vibrational system, the magnetic circuit system System drives the vibrational system vibration sounding.
Also referring to Fig. 1 and Fig. 2, wherein Fig. 1 is the three-dimensional knot of the first embodiment of sound membrane structure provided by the invention Composition;Fig. 2 is the sectional view along the line A-A of sound membrane structure shown in Fig. 1.The vibrational system 1 includes sound membrane structure 11 and voice coil 13, The sound membrane structure 11 is fixed in the end of the voice coil 13.The sound membrane structure 11 is including top dome 111 and matches siderosphere 113, institute The first surface 1111 and the second surface 1113 opposite with first surface 1111 that top dome 111 includes the separate voice coil 13 are stated, It is described to be connect with siderosphere 113 with the second surface 1113.
Further, described one end with siderosphere 113 is connected to the second surface 1113, described another with siderosphere 113 One end is connect with the end of the voice coil 13.
Specifically, described be adhesively fixed with siderosphere 113 with the second surface 1113.
Also referring to Fig. 3 and Fig. 4, wherein Fig. 3 is the three-dimensional knot of second of embodiment of sound membrane structure provided by the invention Composition;Fig. 4 is the sectional view along the line B-B of sound membrane structure shown in Fig. 3.The vibrational system 2 includes sound membrane structure 21 and voice coil 23, The sound membrane structure 21 is fixed in the end of the voice coil 23.The sound membrane structure 21 is including top dome 211 and matches siderosphere 213, institute The first surface 2111 and the second surface 2113 opposite with first surface 2111 that top dome 211 includes the separate voice coil 23 are stated, It is described to be connect with siderosphere 213 with the second surface 2113.
Further, the second surface 2113 includes second annular groove 21131, and the siderosphere 213 of matching includes mutual The interconnecting piece 2131 and extension 2133 of connection, the interconnecting piece 2131 is embedded at the second annular groove 21131, described It is connect by the interconnecting piece 2131 with the top dome 211 with siderosphere 213, the extension 2133 is far from the interconnecting piece 2131 One end protrude from the second surface 2113.The voice coil 23 is connected to the end of the separate interconnecting piece 2131 of extension 2133 In portion.
In the present embodiment, the face area of the interconnecting piece 2131 is greater than the face area with the extension 2133, So that the section with siderosphere 213 is T-shaped, also, 2133 integrated injection molding of the interconnecting piece 2131 and the extension.
Also referring to Fig. 5 and Fig. 6, wherein Fig. 5 is the three-dimensional knot of second of embodiment of sound membrane structure provided by the invention Composition;Fig. 6 is the sectional view along the line C-C of sound membrane structure shown in Fig. 5.The vibrational system 3 includes sound membrane structure 31 and voice coil 33, The voice coil 33 is fixed on the sound membrane structure 31.The sound membrane structure 31 is including top dome 311 and matches siderosphere 313, the top dome 311 include the first surface 3111 and the second surface 3113 opposite with first surface 3111 of the separate voice coil 33, described to match Siderosphere 313 is connect with the first surface 3111.
Further, the first surface 3111 includes first annular groove 31111, described to be embedded at institute with siderosphere 313 It states in first annular groove 31111.Voice coil 33 is fixedly connected with second surface 3113.
It is described to be all made of high density material with siderosphere and be made in above-mentioned three kinds of embodiments, specifically, high density material Density range is 2-23g/cm3;And the ring structure that can be an entirety with siderosphere, if with stem portion The ring structure of composition.
In conclusion the microphone device of sound membrane structure provided by the invention and use the sound membrane structure is in top dome first surface Siderosphere is matched in wherein side setting with second surface, is provided with connecting with voice coil with siderosphere in second surface, and counterweight Circle uses density range for 2-23g/cm3High density material be made, by insertion or be adhesively fixed with siderosphere and top dome, the knot While or else structure influences frequency bandwidth, resonant frequency f is reduced0, to ensure that the performance of microphone device.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims (3)

1. a kind of microphone device, including vibrational system, which is characterized in that the vibrational system includes sound membrane structure and driving institute The voice coil of sound membrane structure movement is stated, the sound membrane structure includes top dome and matches siderosphere, and the top dome includes far from the voice coil First surface and the second surface opposite with the first surface, the first surface include first annular groove and the counterweight Circle be embedded be fixed on the first annular groove or the second surface include second annular groove and it is described be embedded with siderosphere it is solid Due to the second annular groove, it is described with siderosphere along direction of vibration projection and the voice coil along direction of vibration projection at least It partly overlaps.
2. microphone device according to claim 1, which is characterized in that described to be embedded at the first annular groove with siderosphere Interior, the voice coil is connect with the second surface.
3. microphone device according to claim 1, which is characterized in that it is described with siderosphere include integrally formed interconnecting piece and Extension, the interconnecting piece is embedded at the second annular groove, described to be connected with siderosphere by the interconnecting piece and the top dome It connects, the extension protrudes from the second surface far from one end of the interconnecting piece.
CN201610011971.5A 2016-01-07 2016-01-07 Using the microphone device of sound membrane structure Expired - Fee Related CN105472513B (en)

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CN201610011971.5A CN105472513B (en) 2016-01-07 2016-01-07 Using the microphone device of sound membrane structure

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Application Number Priority Date Filing Date Title
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CN105472513B true CN105472513B (en) 2019-05-07

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109862490B (en) * 2018-12-30 2021-07-09 瑞声声学科技(深圳)有限公司 Loudspeaker
CN111083617B (en) * 2019-12-20 2021-10-08 歌尔股份有限公司 Sound production device and electronic equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2405389Y (en) * 2000-02-03 2000-11-08 王海燕 Loud speaker
KR20080085467A (en) * 2007-03-20 2008-09-24 에스텍 주식회사 Speaker
CN201365335Y (en) * 2009-01-04 2009-12-16 嘉善豪声电子有限公司 Composite material tweeter
CN202161073U (en) * 2010-12-07 2012-03-14 嘉兴市佳宏电声科技有限公司 Music feeling vibration massage pillow
CN103975385A (en) * 2011-10-06 2014-08-06 Hrl实验室有限责任公司 High bandwidth antiresonant membrane
CN204014042U (en) * 2014-06-30 2014-12-10 歌尔声学股份有限公司 Loud speaker module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2405389Y (en) * 2000-02-03 2000-11-08 王海燕 Loud speaker
KR20080085467A (en) * 2007-03-20 2008-09-24 에스텍 주식회사 Speaker
CN201365335Y (en) * 2009-01-04 2009-12-16 嘉善豪声电子有限公司 Composite material tweeter
CN202161073U (en) * 2010-12-07 2012-03-14 嘉兴市佳宏电声科技有限公司 Music feeling vibration massage pillow
CN103975385A (en) * 2011-10-06 2014-08-06 Hrl实验室有限责任公司 High bandwidth antiresonant membrane
CN204014042U (en) * 2014-06-30 2014-12-10 歌尔声学股份有限公司 Loud speaker module

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Granted publication date: 20190507

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