CN201467431U - Electric sound-energy sounding device - Google Patents

Electric sound-energy sounding device Download PDF

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Publication number
CN201467431U
CN201467431U CN2009201314744U CN200920131474U CN201467431U CN 201467431 U CN201467431 U CN 201467431U CN 2009201314744 U CN2009201314744 U CN 2009201314744U CN 200920131474 U CN200920131474 U CN 200920131474U CN 201467431 U CN201467431 U CN 201467431U
Authority
CN
China
Prior art keywords
voice coil
loudspeaker voice
coil loudspeaker
dislocation
vibrating diaphragm
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 - Lifetime
Application number
CN2009201314744U
Other languages
Chinese (zh)
Inventor
邵益
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Changzhou Co Ltd
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Acoustic Technologies Changzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Acoustic Technologies Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to CN2009201314744U priority Critical patent/CN201467431U/en
Application granted granted Critical
Publication of CN201467431U publication Critical patent/CN201467431U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to the field of electric sound-energy sounders, in particular to an electric sound-energy sounding device with an improved vibrating unit. At least part of one end of a voice coil is overlapped with the position of the voice coil. The other part of the voice coil is dislocated at the position of the voice coil to form dislocation holes for leaking sound pressure. When the voice coil drives a vibrating diaphragm to move at high frequency, the sound pressure can leak from the dislocation holes, thereby reducing the damping of the vibrating diaphragm, obtaining high sensitivity, avoiding transient distortion and improving the reliability of the sound quality of the sounder.

Description

Electroacoustic can microphone device
[technical field]
The utility model relates to a kind of electroacoustic energy acoustical generator field, refers to that specifically a kind of electroacoustic of vibration unit architecture advances can microphone device.
[background technology]
Development along with wireless telecommunications, Global Mobile Phone Users is more and more, the user not only is satisfied with conversation to the requirement of mobile phone, and want high-quality communication effect can be provided, especially at present the development of mobile multimedia technology, the speech quality of mobile phone becomes more important, and the loud speaker of mobile phone is as the sound generating mechanism of mobile phone, and its design quality directly influences speech quality.
At present, the mini-sound device of dependency structure comprises acoustical generator body 100 , part is positioned at the intrinsic vibration unit 200 of acoustical generator Wherein, the acoustical generator body 100 Having basin frame, magnetic circuit system, the magnetic circuit system in the basin frame of accommodating cavity is provided with and is connected with vibration unit 200 Voice coil loudspeaker voice coil 210 , part voice coil loudspeaker voice coil 210 Be suspended in the magnetic gap of described magnetic circuit system the voice coil loudspeaker voice coil 210 of ring-type Be bonded in vibrating diaphragm 220 fully The voice coil loudspeaker voice coil position 221 on ball top Magnetic circuit system comprises that the magnet steel of magnetic bowl, the sheet of peviform forms, and the bottom of basin frame is provided with the circuit board that realization links to each other with external circuit, the passing the hole that the basin frame is provided with into and out of line and link to each other with circuit board of voice coil loudspeaker voice coil.When feeding the alternation tone currents on circuit board, voice coil loudspeaker voice coil is subjected to the motive force of alternation in magnetic gap, produces alternate motion, thereby drives the vibrating diaphragm vibration, sounds.
The voice coil loudspeaker voice coil 210 of this structure mini microphone device Fully and the voice coil loudspeaker voice coil position, ball top 221 of vibrating diaphragm Gummed is when voice coil loudspeaker voice coil 210 When doing high frequency motion in magnetic gap, the air in the ball top has only by the magnetic gap leakage, and transient state is exactly to have increased damping, vibrating diaphragm 220 in brief Sensitivity do not catch up with the reaction speed of music rhythm, will produce transient distortion.Have a strong impact on the definition of sound, cause product reliability low, thereby be necessary to study a kind of electroacoustic energy microphone device with new construction.
[utility model content]
The utility model is big at the damping of acoustical generator vibrating diaphragm, and causes sensitivity low, easily produces the problem of transient distortion, and the structure improved electroacoustic energy of a kind of vibration unit microphone device is provided.
Electroacoustic energy microphone device of the present utility model, the magnetic circuit system, the part that comprise the basin frame, be contained in the basin frame are suspended at the voice coil loudspeaker voice coil of magnetic circuit system, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, described vibrating diaphragm center is provided with the ball top, the edge at ball top is provided with the voice coil loudspeaker voice coil position of the bonding voice coil loudspeaker voice coil of annular, it is overlapping that wherein an end of voice coil loudspeaker voice coil has a part and voice coil loudspeaker voice coil position at least, another part and voice coil loudspeaker voice coil dislocation position are to form the dislocation hole of leaking acoustic pressure, and the voice coil loudspeaker voice coil other end is suspended in the magnetic gap.
Preferably, with the voice coil loudspeaker voice coil position in the dislocation hole that forms of dislocation be positioned at the inboard of ball top orthographic projection.
Be positioned at the outside of ball top orthographic projection with the dislocation hole that forms of misplacing outside the voice coil loudspeaker voice coil position.
Described dislocation hole is positioned at the arc section or the minor face section of voice coil loudspeaker voice coil.
Described voice coil loudspeaker voice coil comprises speech coil framework.
The utility model electroacoustic energy microphone device, one end of voice coil loudspeaker voice coil has at least a part and voice coil loudspeaker voice coil position overlapping, another part of voice coil loudspeaker voice coil and voice coil loudspeaker voice coil dislocation position form the dislocation hole of leaking acoustic pressure, when voice coil loudspeaker voice coil drives the vibrating diaphragm high frequency motion, acoustic pressure can be leaked from the dislocation hole, to reduce the damping of vibrating diaphragm, obtains high sensitivity, avoid the phenomenon of transient distortion to produce, help the reliable of acoustical generator tonequality.
[description of drawings]
Fig. 1 is the acoustical generator structural representation that prior art discloses;
Fig. 2 is the utility model blast structural representation;
Fig. 3 is a cross-sectional view of the present utility model;
Fig. 4 is the enlarged drawing of A portion among Fig. 3.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
Shown in Fig. 2,3, be one preferred embodiment of the utility model electroacoustic energy microphone device, it comprises acoustical generator body 100, basin frame 110, the basin frame 110 of promptly accommodating the required element of this microphone device have annular accepting hole, accommodate magnet frame 120 in the annular accepting hole, and the magnet steel 130 of column is arranged in the magnet frame 120, be provided with pole piece 140 above the magnet steel, and magnet steel 130 has certain interval apart from magnet frame 120 inner surfaces, and this gap is a magnetic gap, and the invisible magnetic line of force is arranged in the magnetic gap.The part that suspends in magnetic gap voice coil loudspeaker voice coil 210, voice coil loudspeaker voice coil 210 tops are connecting vibrating diaphragm 220, and vibrating diaphragm 220 sky are covering loam cake.When feeding the alternation tone currents, voice coil loudspeaker voice coil 210 is subjected to the motive force of alternation in magnetic gap, cut the highdensity magnetic line of force, thereby drives the and then reaction speed vibration of music rhythm of vibrating diaphragm 220, sends sound clearly.Vibrating diaphragm 220 is oval in the present embodiment, the voice coil loudspeaker voice coil position 221 of its ball top edge ringwise, with the voice coil loudspeaker voice coil 210 of the band skeleton of voice coil loudspeaker voice coil position 221 bonding also ringwise, but the cross section of voice coil loudspeaker voice coil position 221 is not overlapping with the cross section part that bonding voice coil loudspeaker voice coil 210 should be held, the arc section 211 that is voice coil loudspeaker voice coil 210 does not contact with the voice coil loudspeaker voice coil position interior dislocation of 221 formation of vibrating diaphragm 220, form dislocation hole 230a, the 230b that leaks acoustic pressure respectively at two ends, this dislocation hole 230a, 230b are positioned at the inboard of vibrating diaphragm 220 ball top orthographic projections, the overlapping and bonding in remainder and voice coil loudspeaker voice coil position; Certainly, when the cross section of the voice coil loudspeaker voice coil position 221 of going in ring should end than bonding voice coil loudspeaker voice coil 210 arc section 211 cross sections hour, the arc section 211 of voice coil loudspeaker voice coil 210 does not contact with the voice coil loudspeaker voice coil position outer dislocation of 221 formation of vibrating diaphragm 220 like this, and promptly the dislocation hole of Xing Chenging is positioned at the outside of ball top orthographic projection.
As shown in Figure 4, enlarged drawing for the 210 1 arc section ends of voice coil loudspeaker voice coil among Fig. 3, the arc section 211 of voice coil loudspeaker voice coil 210 is not overlapping with the voice coil loudspeaker voice coil position 221 of vibrating diaphragm 220, be voice coil loudspeaker voice coil arc section 211 not with voice coil loudspeaker voice coil position 221 overlaids, so just form the dislocation hole 230a that leaks acoustic pressure, this dislocation hole 230a is positioned at the inboard of ball top orthographic projection, and remaining skeleton partly bonds with voice coil loudspeaker voice coil position 221; When voice coil loudspeaker voice coil 210 drove vibrating diaphragm 220 high frequency motions, acoustic pressure can be leaked from dislocation hole 230a, to reduce the damping of vibrating diaphragm 220, obtains high sensitivity, avoided the phenomenon of transient distortion to produce, and helped the reliable of acoustical generator tonequality.Certainly, form the arc section that the dislocation hole of leaking acoustic pressure is not limited to be arranged on voice coil loudspeaker voice coil, also can be positioned at the minor face section of rectangular coil, can constitute the dislocation hole of leaking acoustic pressure equally.
Above-described only is execution mode of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.

Claims (5)

1. an electroacoustic can microphone device, the magnetic circuit system, the part that comprise the basin frame, be contained in the basin frame are suspended at the voice coil loudspeaker voice coil of magnetic circuit system, the vibrating diaphragm that is connected with voice coil loudspeaker voice coil, described vibrating diaphragm center is provided with the ball top, the edge at ball top is provided with the voice coil loudspeaker voice coil position of the bonding voice coil loudspeaker voice coil of annular, it is characterized in that: an end of voice coil loudspeaker voice coil has at least a part and voice coil loudspeaker voice coil position overlapping, another part and voice coil loudspeaker voice coil dislocation position are to form the dislocation hole of leaking acoustic pressure, and the voice coil loudspeaker voice coil other end is suspended in the magnetic gap.
2. electroacoustic according to claim 1 can microphone device, it is characterized in that: the dislocation hole that forms with dislocation in the voice coil loudspeaker voice coil position is positioned at the inboard of ball top orthographic projection.
3. electroacoustic according to claim 1 can microphone device, it is characterized in that: be positioned at the outside of ball top orthographic projection with the dislocation hole that forms of misplacing outside the voice coil loudspeaker voice coil position.
4. electroacoustic energy microphone device according to claim 1, it is characterized in that: described dislocation hole is positioned at the arc section or the minor face section of voice coil loudspeaker voice coil.
5. electroacoustic energy microphone device according to claim 1, it is characterized in that: described voice coil loudspeaker voice coil comprises speech coil framework.
CN2009201314744U 2009-05-15 2009-05-15 Electric sound-energy sounding device Expired - Lifetime CN201467431U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201314744U CN201467431U (en) 2009-05-15 2009-05-15 Electric sound-energy sounding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201314744U CN201467431U (en) 2009-05-15 2009-05-15 Electric sound-energy sounding device

Publications (1)

Publication Number Publication Date
CN201467431U true CN201467431U (en) 2010-05-12

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CN2009201314744U Expired - Lifetime CN201467431U (en) 2009-05-15 2009-05-15 Electric sound-energy sounding device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102065358A (en) * 2010-05-25 2011-05-18 瑞声声学科技(深圳)有限公司 Electromagnetic loudspeaker and magnetic path system thereof
CN108810771A (en) * 2018-08-14 2018-11-13 瑞声科技(新加坡)有限公司 Microphone device
CN109121051A (en) * 2018-08-14 2019-01-01 瑞声科技(新加坡)有限公司 Microphone device
CN109905821A (en) * 2018-12-30 2019-06-18 瑞声科技(新加坡)有限公司 Loudspeaker
WO2020140543A1 (en) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 Speaker

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102065358A (en) * 2010-05-25 2011-05-18 瑞声声学科技(深圳)有限公司 Electromagnetic loudspeaker and magnetic path system thereof
CN102065358B (en) * 2010-05-25 2013-11-20 瑞声声学科技(深圳)有限公司 Electromagnetic loudspeaker and magnetic path system thereof
CN108810771A (en) * 2018-08-14 2018-11-13 瑞声科技(新加坡)有限公司 Microphone device
CN109121051A (en) * 2018-08-14 2019-01-01 瑞声科技(新加坡)有限公司 Microphone device
CN109905821A (en) * 2018-12-30 2019-06-18 瑞声科技(新加坡)有限公司 Loudspeaker
WO2020140543A1 (en) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 Speaker

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170525

Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8

Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd.

Patentee after: AAC Technologies (Singapore) Co., Ltd.

Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167

Co-patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd.

Patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100512