CN105681977A - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
CN105681977A
CN105681977A CN201610201984.9A CN201610201984A CN105681977A CN 105681977 A CN105681977 A CN 105681977A CN 201610201984 A CN201610201984 A CN 201610201984A CN 105681977 A CN105681977 A CN 105681977A
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CN
China
Prior art keywords
washer
limit
voice coil
speaker
magnet
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.)
Granted
Application number
CN201610201984.9A
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Chinese (zh)
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CN105681977B (en
Inventor
刘华伟
崔现丽
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Goertek Inc
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Goertek Inc
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Priority to CN201610201984.9A priority Critical patent/CN105681977B/en
Publication of CN105681977A publication Critical patent/CN105681977A/en
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Classifications

    • 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
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers

Abstract

The invention provides a loudspeaker, which comprises a housing and a magnetic circuit system arranged in the housing. The magnetic circuit system comprises a magnetic conductive yoke, a center magnet fixedly arranged in the center place of the magnetic conductive yoke, edge magnets arranged around the center magnet, a centre washer and edge washers, wherein the centre washer and the edge washers are arranged correspondingly to the center magnet and the edge magnets. Each side of the edge washer is provided with a press edge in the height direction, and the side thereof is provided with a limit groove in the horizontal direction; the press edges and the limit grooves are moulded to the housing; and the width of the maximum cross section of each limit groove in the corresponding edge washer is larger than the width of the limit groove in the side edge surface of the edge washer. Through the loudspeaker, firm combination between the washers and the housing can be ensured, and strength and reliability of the housing are enhanced.

Description

Speaker
Technical field
The present invention relates to technical field of acoustics, more specifically, relate to a kind of speaker.
Background technology
Speaker is as the conventional electro-acoustic transducer device converting electrical energy into acoustic energy, and it plays indispensable effect in sound place system. Speaker is a device the weakest in sound place system, and puts for sound for effect, and it is again most important parts. Speaker of a great variety, audio frequency electric energy passes through electromagnetism, piezoelectricity or electrostatic effect so that it is cone or diaphragm oscillations also produce resonance with ambient air and send sound. Therefore, having had the appearance of speaker and receiver just, people are just heard beautiful sound.
At present, speaker is the requirement meeting performance and reliability, and the washer of vibrational system generally adopts injection molding manner fixing in the enclosure, and the shell of injection moulding washer is in use, there is the problem that washer is peeled off with plastic shell, affect the normal of product and use and conforming product rate.
Summary of the invention
In view of the above problems, it is an object of the invention to provide a kind of speaker, easily affect the problem such as properties of product and quality from coming off in shell solving the washer of current speaker.
A kind of speaker is provided, including shell and collecting magnetic circuit system in the enclosure according to the present invention; Wherein, magnetic circuit system includes conductive magnetic yoke, is fixed on center washer and limit washer that the centring magnet of conductive magnetic yoke center, the limit Magnet arranged around centring magnet and centring magnet and limit Magnet are correspondingly arranged; Wherein, the short transverse of the side of limit washer is provided with flanging, the horizontal direction of side is provided with the equal injection moulding of stopper slot, flanging and stopper slot to shell; Wherein, stopper slot gos deep into maximum cross-section width within the washer of limit more than the stopper slot width in the side edge surface of limit washer.
Furthermore it is preferred that scheme be that stopper slot is dovetail groove, dovetail groove or arcuate groove, wherein, the radian of arcuate groove is more than π; Wherein, stopper slot is arranged in flanging and extends to the inside of limit washer.
Furthermore it is preferred that scheme be that the length of flanging is not more than the length of side of the limit washer of correspondence.
Furthermore it is preferred that scheme be on each side of limit washer, be respectively arranged with at least one stopper slot.
Furthermore it is preferred that scheme be that limit washer is rectangular ring structure, limit Magnet is list structure;Wherein, limit Magnet is provided with four, and four edges Magnet is correspondingly arranged with four sides of limit washer respectively.
Furthermore it is preferred that scheme be also include the vibrational system housed in the enclosure; Wherein, vibrational system includes vibrating diaphragm and is fixed on the voice coil loudspeaker voice coil of vibrating diaphragm side; Voice coil loudspeaker voice coil includes voice coil loudspeaker voice coil main body and the voice coil leads being wrapped in voice coil loudspeaker voice coil main body.
Furthermore it is preferred that scheme be, between limit washer and limit Magnet and center washer and centring magnet formed magnetic gap, voice coil loudspeaker voice coil is hung in magnetic gap.
Furthermore it is preferred that scheme be also include being injection-moulded on shell for connecting the shell fragment of the peripheral circuits of speaker; Shell fragment and voice coil leads conducting.
Furthermore it is preferred that scheme be, limit washer is provided with dodge shell fragment dodge chamfering.
Furthermore it is preferred that scheme be, the ring portion of the male female structure that vibrating diaphragm includes fixing the fixed part being connected with shell and fixed part is wholely set, and be positioned at the reinforcement part in ring portion.
Utilize the above-mentioned speaker according to the present invention, the sidewall of limit washer arranges flanging and stopper slot structure, by by flanging and stopper slot injection moulding to shell, it is ensured that being firmly connected between limit washer and shell, it is prevented that in product use procedure, limit washer comes off in shell; In addition it is possible to strengthen the intensity of shell self, reduce the fraction defective of product, it is ensured that properties of product are reliable and stable.
In order to realize above-mentioned and relevant purpose, one or more aspects of the present invention include the feature that will be explained in below and be particularly pointed out in the claims. Description below and accompanying drawing describe some illustrative aspects of the present invention in detail. But, some modes in the various modes that only can use principles of the invention of these aspects instruction. Additionally, it is contemplated that include all these aspects and their equivalent.
Accompanying drawing explanation
By the content of the reference explanation below in conjunction with accompanying drawing and claims, and along with being more fully understood from the present invention, other purpose of the present invention and result will be more apparent and should be readily appreciated that. In the accompanying drawings:
Fig. 1 is speaker exploded view according to embodiments of the present invention;
Fig. 2 is speaker profile according to embodiments of the present invention;
Fig. 3 is limit washer structure schematic diagram according to embodiments of the present invention;
Fig. 4 is limit washer according to embodiments of the present invention and outer casing assembling structure schematic diagram;
Fig. 5 is the profile of A-A part in Fig. 4.
Accompanying drawing labelling therein includes: reinforcement part 1, vibrating diaphragm 2, center washer 3, centring magnet 4, voice coil loudspeaker voice coil 5, limit washer 6, flanging 61, dodge chamfering 62, escape groove 63, stopper slot 64, shell 7, limit Magnet 8, conductive magnetic yoke 9.
Label identical in all of the figs indicates similar or corresponding feature or function.
Detailed description of the invention
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, many details are elaborated. It may be evident, however, that these embodiments can also be realized when not having these details. In other example, for the ease of describing one or more embodiment, known structure and equipment illustrate in block form an.
For the loadspeaker structure of the present invention is described in detail, below with reference to accompanying drawing, specific embodiments of the invention are described in detail.
Fig. 1 illustrates speaker decomposition texture according to embodiments of the present invention; Fig. 2 illustrates speaker cross-section structure according to embodiments of the present invention
As Fig. 1 and Fig. 2 jointly shown in, the speaker of the embodiment of the present invention, including shell 7 and be housed in the magnetic circuit system system in shell 7;Wherein, magnetic circuit system includes conductive magnetic yoke 9, is fixed on center washer 3 and limit washer 6 that the centring magnet 4 of conductive magnetic yoke 9 center, the limit Magnet 8 arranged around centring magnet 4 and centring magnet 4 and limit Magnet 8 are correspondingly arranged respectively; Wherein, arranging flanging 61 in the short transverse of each side of limit washer 6, arrange stopper slot in the horizontal direction of each side, by time fixing to limit washer 6 and shell 7 injection moulding, flanging 61 and stopper slot all embed in the sidewall of shell 7; Further, being firmly connected in order to ensure limit washer 6 and shell 7, it is prevented that limit washer 6 comes off in shell 7, and stopper slot is set to: stopper slot gos deep into maximum cross-section width within limit washer 6 more than the stopper slot width in the side edge surface of limit washer 6.
Specifically, the speaker in the embodiment of the present invention, including shell 7 and be housed in shell 7 formed cavity in vibrational system and magnetic circuit system; Wherein, vibrational system includes vibrating diaphragm 2, is fixed on the voice coil loudspeaker voice coil 5 of vibrating diaphragm 2 side, and is positioned at the reinforcement part 1 of vibrating diaphragm 2 center. Voice coil loudspeaker voice coil 5 includes voice coil loudspeaker voice coil main body and is wrapped in the voice coil leads outside voice coil loudspeaker voice coil main body, the two ends of voice coil leads are drawn respectively voice coil loudspeaker voice coil main body, and the shell fragment conducting of speaker peripheral circuits it is connected respectively with two of speaker, by coordinating of shell fragment and client production, it is achieved the conducting of speaker peripheral circuits.
Wherein, vibrating diaphragm 2 includes the ring portion of male female structure that is wholely set with the fixing fixed part (being positioned at the outermost of vibrating diaphragm) being connected of shell 7 and fixed part and is arranged on the planar portions (being positioned at the penetralia of vibrating diaphragm) within ring portion, reinforcement part 1 is arranged on the planar portions of vibrating diaphragm 2, it is mainly used in regulating the acoustical behavior of speaker, for reducing the oeverall quality of vibrational system, generally arranging in the position of vibrating diaphragm 2 planar portions correspondence reinforcement part 1 and remove material, reinforcement part 1 then covers this feeding position.
Additionally, magnetic circuit system includes for fixed magnet the conductive magnetic yoke 9 revising the magnetic line of force, the centring magnet 4 being pasted and fixed on conductive magnetic yoke 9 center and the four edges Magnet 8 arranged around centring magnet 4, it is sticked center washer 3 away from the side of conductive magnetic yoke 9 at centring magnet 4, at limit Magnet 8, the same side of conductive magnetic yoke 9 has been provided with limit washer 6; Wherein, centring magnet 4 and center washer 3 form integrative-structure, limit Magnet 8 and limit washer 6 also form integrative-structure, the hole existed between integrative-structure and the integrative-structure of limit Magnet 8 and limit washer 6 formation that centring magnet 4 and center washer 3 are formed is magnetic gap, voice coil loudspeaker voice coil 5 is hung in this magnetic gap, when the voice coil loudspeaker voice coil 5 being in magnetic field has tone currents to flow through, can be subject to an alternation motive force and produce alternate motion, thus driving vibrating diaphragm to shake, and then repeatedly promote air and sounding.
It should be noted that, four sidewalls of shell 7 are respectively arranged with the breach dodging limit Magnet 8, each limit Magnet 8 is housed in corresponding breach, it is close to limit Magnet 8 that the limit washer 6 of setting is then fixing with shell 7 to be connected, each side of limit washer 6 is respectively arranged with flanging 61 and stopper slot 64, flanging 61 and stopper slot 64 injection moulding are to the sidewall of shell 7, thus opposite side washer 61 carries out spacing in the X-axis of speaker, Y-axis and Z-direction.
Fig. 3 illustrates limit washer structure according to embodiments of the present invention; Fig. 4 illustrates limit washer according to embodiments of the present invention and outer casing assembling structure and the cross-section structure along A-A place.
In conjunction with Fig. 1 to Fig. 4 jointly shown in, the limit washer 6 in the embodiment of the present invention is loop configuration, and limit Magnet 8 is list structure;Limit Magnet 8 is provided with four, and four edges Magnet 8 is correspondingly arranged with four sides of limit washer 6 respectively. Four sides of limit washer 6 are respectively arranged with flanging 61 and stopper slot 64; Wherein, flanging 61 is the pressing structure arranged in speaker Z-direction, the length of flanging 61 is not more than the length of the side of the limit washer 6 of correspondence, when limit washer 6 is with shell 7 injection moulding, the injection raw material of injection casing 7 can be full of flanging 61, opposite side washer 6 carries out spacing in the short transverse (or Z-direction) of speaker, it is to avoid limit washer 6 separation occurs in the short transverse of shell 7 or dodges seam.
Additionally, stopper slot 64 is arranged in flanging 61 and extends to the inside of limit washer 6, and, stopper slot 64 gos deep into the width at the maximum cross-section place within limit washer 6 more than the stopper slot 64 width in the side edge surface of limit washer 6; Such as, stopper slot 64 could be arranged to oat tail groove structure (shown in Fig. 3 and Fig. 4), trapezium structure or curved slot arrangement etc., makes the injection raw material of injection casing 7 enter stopper slot 64 internal, can prevent it from detaching and all may be used. When limit washer 6 is with shell 7 injection moulding, injection raw material can be full of stopper slot 64, thus opposite side washer 6 carries out spacing in the horizontal direction (or X-axis and Y direction) of speaker, it is to avoid limit washer 6 separation occurs in the horizontal direction of shell 7 or dodges seam. When stopper slot 64 is set to arcuate groove, the arc of the arcuate groove being positioned at limit washer need to output the angle at place less than 180 degree more than π or arcuate groove, is just avoided that the injection raw material embedded in stopper slot together with being injection-moulded in shell 7 comes off from limit washer.
In a specific embodiment of the present invention, in the corresponding corner positions on two corresponding short axle limits of limit washer 6, be additionally provided with dodge speaker shell fragment dodge chamfering 62, the position that arranges of this position and shell fragment of dodging chamfering 62 matches. Be additionally provided with the escape groove 63 of arc in the inner side of limit washer, this escape groove 63 is mainly used in the voice coil leads after dodging bending; Namely voice coil leads turns on shell fragment after drawing from inside loudspeakers, and escape groove 63 is mainly used for dodging the extraction of voice coil leads.
It should be noted that, the length of the flanging 61 arranged on each side of limit washer is not more than the length of the side of the limit washer of correspondence, and, each side of limit washer is respectively arranged with at least one stopper slot 64, number is set can being adjusted according to the length of washer, product size or production requirement of stopper slot. In addition, the flanging of the present invention and stopper slot structure are not limited to the design of washer, similar need to carry out laminated structure assembly and shell or other equipment injection moulding fixing time, all flanging or stopper slot can be set in the edge position of laminated structure assembly, bonding strength therebetween is strengthened; Such as, by time fixing to Magnet or conductive magnetic yoke and shell injection moulding, the side at Magnet or conductive magnetic yoke arranges the structure such as flanging and stopper slot.
Be can be seen that by above-mentioned embodiment, speaker provided by the invention, the side of washer arranges the flanging vertically gone up and the stopper slot gone up in the horizontal direction, when washer and shell injection moulding are fixing, the injection raw material of shell can be full of flanging and stopper slot, make washer all can obtain effectively spacing in height and the horizontal direction of shell, it is to avoid washer departs from shell or occurs dodging seam; The strong bonded between washer and shell can not only be guaranteed, additionally it is possible to strengthen intensity and the reliability of shell self, reduce the fraction defective of product, it is ensured that properties of product long time stability.
Speaker according to the present invention is described in an illustrative manner above with reference to accompanying drawing.It will be understood by those skilled in the art, however, that for the proposed speaker of the invention described above, it is also possible on without departing from the basis of present invention, make various improvement. Therefore, protection scope of the present invention should be determined by the content of appending claims.

Claims (10)

1. a speaker, including shell and be housed in the magnetic circuit system in described shell; Wherein, described magnetic circuit system includes conductive magnetic yoke, is fixed on the centring magnet of described conductive magnetic yoke center, the center washer being correspondingly arranged around the limit Magnet that described centring magnet is arranged and described centring magnet and described limit Magnet and limit washer; It is characterized in that,
The short transverse of the side of described limit washer is provided with flanging, the horizontal direction of described side is provided with stopper slot, described flanging and the equal injection moulding of described stopper slot to described shell; Wherein,
Described stopper slot gos deep into maximum cross-section width within the washer of described limit more than the described stopper slot width in the side edge surface of described limit washer.
2. speaker as claimed in claim 1, it is characterised in that
Described stopper slot is dovetail groove, dovetail groove or arcuate groove, and wherein, the radian of described arcuate groove is more than π; Wherein,
Described stopper slot is arranged in described flanging and extends to the inside of described limit washer.
3. speaker as claimed in claim 1, it is characterised in that
The length of described flanging is not more than the length of the side of the described limit washer of correspondence.
4. speaker as claimed in claim 1, it is characterised in that
Each side of described limit washer is respectively arranged with at least one stopper slot.
5. speaker as claimed in claim 1, it is characterised in that
Described limit washer is rectangular ring structure, and described limit Magnet is list structure; Wherein,
Described limit Magnet is provided with four, and four edges Magnet is correspondingly arranged with four sides of described limit washer respectively.
6. speaker as claimed in claim 1, it is characterised in that also include the vibrational system being housed in described shell; Wherein,
Described vibrational system includes vibrating diaphragm and is fixed on the voice coil loudspeaker voice coil of described vibrating diaphragm side;
Described voice coil loudspeaker voice coil includes voice coil loudspeaker voice coil main body and the voice coil leads being wrapped in described voice coil loudspeaker voice coil main body.
7. speaker as claimed in claim 6, it is characterised in that
Forming magnetic gap between described limit washer and limit Magnet and described center washer and centring magnet, described voice coil loudspeaker voice coil is hung in described magnetic gap.
8. speaker as claimed in claim 7, it is characterised in that
Also include injection moulding on the housing for connecting the shell fragment of the peripheral circuits of described speaker;
Described shell fragment and the conducting of described voice coil leads.
9. speaker as claimed in claim 8, it is characterised in that
Described limit washer is provided with dodge described shell fragment dodge chamfering.
10. speaker as claimed in claim 6, it is characterised in that
The ring portion of the male female structure that described vibrating diaphragm includes fixing the fixed part being connected with described shell and described fixed part is wholely set, and it is positioned at the reinforcement part in described ring portion.
CN201610201984.9A 2016-03-31 2016-03-31 Loudspeaker Active CN105681977B (en)

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CN201610201984.9A CN105681977B (en) 2016-03-31 2016-03-31 Loudspeaker

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CN105681977B CN105681977B (en) 2019-08-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108566599A (en) * 2018-04-24 2018-09-21 歌尔股份有限公司 A kind of sound-producing device and electronic equipment
CN109862490A (en) * 2018-12-30 2019-06-07 瑞声声学科技(深圳)有限公司 Loudspeaker
CN110366079A (en) * 2019-07-30 2019-10-22 歌尔股份有限公司 Sounding device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752963A (en) * 1985-06-12 1988-06-21 Kabushiki Kaisha Kenwood Electroacoustic converter having a recessed step on the center pole
CN203387664U (en) * 2013-05-27 2014-01-08 歌尔声学股份有限公司 Sounding device
CN203851286U (en) * 2014-03-31 2014-09-24 歌尔声学股份有限公司 Loudspeaker
CN204498302U (en) * 2015-03-31 2015-07-22 歌尔声学股份有限公司 Loud speaker module
CN204761701U (en) * 2015-07-01 2015-11-11 歌尔声学股份有限公司 Miniature loudspeaker
CN205584475U (en) * 2016-03-31 2016-09-14 歌尔声学股份有限公司 Loudspeaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752963A (en) * 1985-06-12 1988-06-21 Kabushiki Kaisha Kenwood Electroacoustic converter having a recessed step on the center pole
CN203387664U (en) * 2013-05-27 2014-01-08 歌尔声学股份有限公司 Sounding device
CN203851286U (en) * 2014-03-31 2014-09-24 歌尔声学股份有限公司 Loudspeaker
CN204498302U (en) * 2015-03-31 2015-07-22 歌尔声学股份有限公司 Loud speaker module
CN204761701U (en) * 2015-07-01 2015-11-11 歌尔声学股份有限公司 Miniature loudspeaker
CN205584475U (en) * 2016-03-31 2016-09-14 歌尔声学股份有限公司 Loudspeaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108566599A (en) * 2018-04-24 2018-09-21 歌尔股份有限公司 A kind of sound-producing device and electronic equipment
CN108566599B (en) * 2018-04-24 2021-03-02 歌尔股份有限公司 Sound production device and electronic equipment
CN109862490A (en) * 2018-12-30 2019-06-07 瑞声声学科技(深圳)有限公司 Loudspeaker
CN109862490B (en) * 2018-12-30 2021-07-09 瑞声声学科技(深圳)有限公司 Loudspeaker
CN110366079A (en) * 2019-07-30 2019-10-22 歌尔股份有限公司 Sounding device

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