CN201854413U - Minitype speaker - Google Patents

Minitype speaker Download PDF

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Publication number
CN201854413U
CN201854413U CN2010205918888U CN201020591888U CN201854413U CN 201854413 U CN201854413 U CN 201854413U CN 2010205918888 U CN2010205918888 U CN 2010205918888U CN 201020591888 U CN201020591888 U CN 201020591888U CN 201854413 U CN201854413 U CN 201854413U
Authority
CN
China
Prior art keywords
voice coil
ball top
microspeaker
coil loudspeaker
loudspeaker voice
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
CN2010205918888U
Other languages
Chinese (zh)
Inventor
朱秉科
潘政民
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.)
Ruisheng Acoustic Technology Changzhou Co ltd
AAC Technologies Holdings Shenzhen Co Ltd
Original Assignee
Ruisheng Acoustic Technology Changzhou Co ltd
AAC Acoustic Technologies Shenzhen 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
Priority to CN200920261780.X priority Critical
Priority to CN200920261780 priority
Application filed by Ruisheng Acoustic Technology Changzhou Co ltd, AAC Acoustic Technologies Shenzhen Co Ltd filed Critical Ruisheng Acoustic Technology Changzhou Co ltd
Priority to CN2010205918888U priority patent/CN201854413U/en
Application granted granted Critical
Publication of CN201854413U publication Critical patent/CN201854413U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a minitype speaker which comprises a magnetic circuit system, a voice coil, an elastic board, a diaphragm and a roof. The magnetic circuit system comprises a magnetic gap, a roof part arranged in a central area, and a corrugated part surrounding the roof part; the roof is arranged on the roof part of the diaphragm; one end of the voice coil is connected with the elastic board; the other end of the voice coil is held in the magnetic gap; and the elastic board is clipped between the other end of the voice coil and the roof. As the voice coil and the roof of the minitype speaker are connected together by the elastic board, the diameter of the voice coil is guaranteed to be larger than the outer diameter of the roof; meanwhile, the voice coil and a vibrating system are connected integrally and vibrate synchronously, so that the overall performance and product reliability of the minitype speaker can be improved, and distortion and power reduction caused by the shrinking of the voice coil can be avoided.

Description

Microspeaker
Technical field
The utility model relates to a kind of Microspeaker.
Background technology
Along with development of electronic technology, electronic communication equipment develops to directions such as frivolous, high tone qualities gradually.Therefore, how when realizing that electronic communication equipment is frivolous, guarantee that again the high tone quality performance of electronic communication equipment has just become one of problem demanding prompt solution.
Seeing also Fig. 1, is a kind of side cross-sectional schematic of the Microspeaker relevant with the utility model.Described Microspeaker 1 comprises a magnetic circuit system 11, a voice coil loudspeaker voice coil 13, ball top 15 and one vibrating diaphragm 17.
Described magnetic circuit system 11 comprises a magnetic gap 111.Described magnetic circuit system 11 correspondences form a stationary magnetic field in described magnetic gap 111.
Described voice coil loudspeaker voice coil 13 is one to twine the multiturn cylindrical-shaped structure form by plain conductor, and one end correspondence suspends in the magnetic gap 111 that is contained in described magnetic circuit system 11.Described voice coil loudspeaker voice coil 13 is under the effect of extraneous alternation drive current, and correspondence produces an alternating magnetic field.
Described ball top 15 and described vibrating diaphragm 17 form the vibrational system of described Microspeaker 1, and it is the sound source generation body of described Microspeaker 1.Described ball top 15 forms the voice unit of described vibrational system simultaneously in order to increase the intensity of Microspeaker 1.The peripheral edge size on described ball top 15 is corresponding to the diameter of described voice coil loudspeaker voice coil 13.Described vibrating diaphragm 17 forms the bass unit of vibrational system.
After described Microspeaker 1 assembling is finished, described ball top 15 and the described vibrating diaphragm 17 bonding lids of being arranged to.Described voice coil loudspeaker voice coil 13 1 ends are fixed in the peripheral edge on described ball top 15, that is, the peripheral edge place diameter of a circle on the corresponding and described ball of the diameter of described voice coil loudspeaker voice coil 13 top 15 is consistent.The lid that described ball top 15 and described vibrating diaphragm 17 form is covered on the magnetic gap 111 opening parts top of described magnetic circuit system 11, makes the other end of described voice coil loudspeaker voice coil 13 be suspended in the described magnetic gap 111 simultaneously.
When described Microspeaker 1 is worked, described voice coil loudspeaker voice coil 13 receives the external electric acoustical signal, corresponding induction generates variable magnetic field, produce interaction force between the fixed magnetic field in this variable magnetic field and the described magnetic gap 111, order about under described voice coil loudspeaker voice coil 13 in the vertical directions motion, and then drive described vibrational system vibration sounding and blaze abroad.
In this Microspeaker 1, for guaranteeing that described Microspeaker 1 has preferable acoustical quality, it is consistent with the external diameter on described ball top 15 that described voice coil loudspeaker voice coil 13 diameters are set, so, make described voice coil loudspeaker voice coil 13 can effectively drive described ball top 15 and be synchronized with the movement, reduce the distortion that the asynchronous vibration because of described voice coil loudspeaker voice coil 13 and described ball top 15 brings.Simultaneously, guarantee that the high pitch zone power of whole Microspeaker 1 is powerful.
But still there is following defective in above-mentioned Microspeaker 1: along with the structure of electronic communication equipment is compact gradually, overall volume reduces gradually, guarantee consistent difficult realization the with the external diameter on described ball top 15 of diameter of described voice coil loudspeaker voice coil 13.When dwindling the diameter of voice coil loudspeaker voice coil 13, then can reduce the power of whole Microspeaker 1; When dwindling ball top outside dimension, then voice coil loudspeaker voice coil 13 can not be fixed on the described ball top 15, therefore causes the high pitch zone distortion of Microspeaker 1.
The utility model content
For solving the prior art Microspeaker, provide a kind of voice coil loudspeaker voice coil and Microspeaker that ball top outside dimension is inconsistent and performance is preferable of guaranteeing to be necessity in fact because of voice coil loudspeaker voice coil and the inconsistent problem that causes performance to reduce of ball top outside dimension.
A kind of Microspeaker, it comprises a voice coil loudspeaker voice coil, an elastic plate, a vibrating diaphragm and ball top, described vibrating diaphragm comprises the ball top that is positioned at central authorities and around the ring portion at ball top, the ball top of described vibrating diaphragm is located on described ball top, it is characterized in that: described elastic plate comprises that a central vibration section and is located at the extension of periphery, described central vibration section, described central vibration section is located at described ball top, and described extension is positioned at described ring subordinate side, and described voice coil loudspeaker voice coil one end is connected in described extension.
As the further improvement of above-mentioned Microspeaker, described central vibration section and described extension are positioned at same plane, and described extension extends to form from described central vibration section.
As the further improvement of above-mentioned Microspeaker, the central vibration section of described elastic plate is fixed in the inside edge of described ring portion.
As the further improvement of above-mentioned Microspeaker, the outside dimension of described extension is less than the ring portion Outside Dimensions of described vibrating diaphragm.
As the further improvement of above-mentioned Microspeaker, comprise that also one has the magnetic circuit system of magnetic gap, the other end of described voice coil loudspeaker voice coil is contained in the described magnetic gap.
As the further improvement of above-mentioned Microspeaker, described ball top is fixed in described central vibration section and is closed on vibrating diaphragm one side surface.
As the further improvement of above-mentioned Microspeaker, described voice coil loudspeaker voice coil adopts adhesive to be bonded in described elastic plate pushes up a side away from ball surface.
Compared to prior art, the voice coil loudspeaker voice coil of the utility model Microspeaker and described ball top link together by described elastic plate, when guaranteeing that described voice coil diameter is greater than described ball top outside dimension, make the extension of described voice coil loudspeaker voice coil and described elastic plate link into an integrated entity, described voice coil loudspeaker voice coil and described vibrational system synchronous vibration, improve Microspeaker overall performance and production reliability, avoid reducing because of voice coil loudspeaker voice coil dwindles the distortion and the power that cause.
Description of drawings
Fig. 1 is a kind of side cross-sectional schematic of the Microspeaker relevant with the utility model.
Fig. 2 is the side decomposing schematic representation of the utility model Microspeaker first execution mode.
Fig. 3 is the side cross-sectional schematic after the Microspeaker assembling shown in Figure 2.
Embodiment
Below in conjunction with accompanying drawing Microspeaker structure of the present utility model is described.
Please consult Fig. 2 and Fig. 3 simultaneously, wherein Fig. 2 is the side decomposing schematic representation of the utility model Microspeaker first execution mode, Fig. 3 be after the Microspeaker shown in Figure 2 assembling the side cross-sectional schematic.Described Microspeaker 2 comprises a framework 21, a magnetic circuit system 23, a voice coil loudspeaker voice coil 25 and a vibrational system 27.Described framework 21 is accommodated described magnetic circuit system 23, described voice coil loudspeaker voice coil 25 and described vibrational system 27 in it, supports described magnetic circuit system 23 and vibrational system 27 simultaneously.
Described framework 21 is support bodys of a tool receiving space (not indicating).Described receiving space is the hollow space of a both ends open.Be provided with a step 211 in the receiving space of described framework 21.Described step 211 is divided into two parts up and down with described receiving space, and its lower middle portion correspondence is accommodated described magnetic circuit system 23, and described vibrational system 27 correspondences are located at the top of described receiving space.
Described magnetic circuit system 23 comprises a magnetic bowl 231, a magnet 233 and a pole piece 235.Described magnetic bowl 231 is to cooperate a cylindrical sidewalls (not indicating) to surround the receiving space (not indicating) of a tool depressed area by a diapire (not indicating).The described magnetic bowl 231 corresponding nested lower parts that are contained in the receiving space of described framework 21.The superimposed successively from top to bottom setting of described pole piece 235, described magnet 233 and described magnetic bowl 231, described pole piece 235, described magnet 233 correspondences are contained in the receiving space of described magnetic bowl 231, the diapire inner surface of the described magnetic bowl 231 of a wherein surperficial butt in the plane that described magnet 233 2 is provided with relatively, another surface is a wherein surface of the described pole piece 235 of butt then.Simultaneously, corresponding formation one column gap between the side surface of the inside sidewalls of described magnetic bowl 231 surface and described magnet 233, described pole piece 235, this gap is the magnetic gap 230 of described magnetic circuit system 23.
Described voice coil loudspeaker voice coil 25 is annuluses, and it is twined to be provided with by the multiturn metal wire and forms, as: copper conductor etc.Described voice coil loudspeaker voice coil 25 can correspondingly produce magnetic field after energising.The diameter of described voice coil loudspeaker voice coil 25 is corresponding to the diameter of described magnetic gap 230 place cylinders.The line footpath size of described voice coil loudspeaker voice coil 25 makes described voice coil loudspeaker voice coil 25 can effectively be contained in the described magnetic gap 230 less than the width of magnetic gap 230.
Described vibrational system 27 comprises an elastic plate 271, ball top 273 and one vibrating diaphragm 275.Described elastic plate 271 is tool elastic plate supports.Described elastic plate 271 comprises a central vibration section 2711 and an extension 2713.Described central vibration section 2711 is positioned at middle section, and in this zone engraved structure is set, and guarantees airflow.Described extension 2713 is positioned at 2711 peripheries, described central vibration section, and surrounding said central vibration section 2711, guarantees that simultaneously an end of described voice coil loudspeaker voice coil 25 is fixed in a wherein surface of described extension 2713.Described elastic plate 271 is to adopt non-conducting material as base material, and makes engraved structure formation in its surface, and it can be to adopt making such as plastic material, elastomeric material or metal material.
Described ball top 273 is in order to realize the voice unit part of described Microspeaker 2, and described vibrating diaphragm 275 is in order to realize the bass unit part of described Microspeaker 2.Described ball top 273 is circular slab constructions, and the outside dimension on described ball top 273 is less than the outside dimension of described voice coil loudspeaker voice coil 25 annulus that forms.Described vibrating diaphragm 275 is annular convex structures, it comprises that one is positioned at the ball top (not indicating) and the ring portion 2751 around described ball top of middle section, the ball top of described vibrating diaphragm 275 is located on described ball top 273, and the corresponding bonding setting in inside edge of its outer ledge and described ring portion 2751 makes described ball top 273 be fixed in the ball top in the annular central zone of described vibrating diaphragm 275.The outer ledge of described ring portion 2751 is corresponding to the step 211 of described framework 21.Thus, described ball top 273 cooperates with described vibrating diaphragm 275 and fixedly surrounds a lid.The material on described ball top 273 is based on soft ball such as cortina, polyvinyl chloride film or metal film top, and certain described ball top 273 is not limited to the employing writing board shape, can also be other shapes such as hemisphere, and its design needs according to different Microspeakers determine.The material of described vibrating diaphragm 275 can be paper, polyethylene, wool, almag, bulletproof cloth etc.
The assembling process of described Microspeaker 2 is as follows:
At first, in the superimposed receiving space that is contained in described magnetic bowl 231 of described magnet 233 and described pole piece 235, and between the inwall of the side of described magnet 233 and described magnetic bowl 231, form ring-type magnetic gap 230.
Secondly, described ball top 273 and described vibrating diaphragm 275 are fixed in simultaneously a wherein surface of described elastic plate 271 central vibration sections 2711.Extension 2713 outside dimensions of described elastic plate 271 are less than the outside dimension of the ring portion 2751 of described vibrating diaphragm 275, but greater than the size at described ball top, so the extension 2713 of described elastic plate 271 is positioned at ring portion 2751 belows of described vibrating diaphragm 275.Described ball pushes up the ball top that 273 correspondences are bonded in described elastic plate 271, and joins with the inside edge of described ring portion 2751 simultaneously.Thus, described ball top 273, described vibrating diaphragm 275 and described elastic plate 271 are combined into vibrational system 27.
Then, an end of described voice coil loudspeaker voice coil 25 is fixed in described extension 271 pushes up 273 side surfaces, and the center of described voice coil loudspeaker voice coil 25 is consistent at vertical direction with the center of described ball top 273, central vibration section 2711 away from described ball.
At last, described magnetic circuit system 25 correspondences are contained in receiving space the latter half of framework 21, other end correspondence with described voice coil loudspeaker voice coil 25 is contained in the magnetic gap 230 of described magnetic circuit system 23 simultaneously, and ring portion 2751 outer ledges of the vibrating diaphragm 275 of described vibrational system 27 engage with step 211 places of described framework 21 are nested.
Thus, form described Microspeaker 2.In described Microspeaker 2, the diameter of the outside dimension on described ball top 273 less than described voice coil loudspeaker voice coil 25 is set, between described ball top 273 and described voice coil loudspeaker voice coil 25, elastic plate 271 is set simultaneously, and extension 2713 outside dimensions of described elastic plate 271 are greater than the outside dimension on described ball top 273, be positioned at ring portion 2751 belows of described vibrating diaphragm 275, connect described ball top 273 and described voice coil loudspeaker voice coil 25 by described elastic plate 271 thus.When described Microspeaker 2 is worked, described voice coil loudspeaker voice coil 25 receives extraneous electroacoustic signal, and induction generates the variation magnetic field, produce interaction force between the fixed magnetic field in this variation magnetic field and the described magnetic gap 230 and act on described voice coil loudspeaker voice coil 25, and order about under described voice coil loudspeaker voice coil 25 in the vertical directions and move, and then drive described elastic plate 271, described ball top 273 and 275 vibrations of described vibrating diaphragm, to form sound.
In this process, because described voice coil loudspeaker voice coil 25 is adhered to the extension 2713 of elastic plate 271, described central vibration section 2711 is adhered to described ball top 273.Described voice coil loudspeaker voice coil 25 is fixed on one with described elastic plate 271, described ball top 273, and static relatively, so 25 vibrations of described voice coil loudspeaker voice coil drive described vibrational system and its synchronous vibration.
Compared to prior art, because voice coil loudspeaker voice coil is consistent with ball top outside dimension in the prior art, so, when perhaps increasing the voice coil loudspeaker voice coil size, can not make that then voice coil loudspeaker voice coil and described ball top is effectively bonding when dwindling ball top size.And in the utility model, by described elastic plate 271 being set between described voice coil loudspeaker voice coil 25 and described ball top 273, make described voice coil loudspeaker voice coil 25 and described ball top 273 be adhered to two relative surfaces of described elastic plate 271 respectively, so design, then when described voice coil loudspeaker voice coil 25 sizes are pushed up 273 external diameter greater than described ball, described voice coil loudspeaker voice coil 25 is fixed together with described vibrational system 27 indirectly, and guarantee the outside dimension of the diameter of described voice coil loudspeaker voice coil 25, realize that effectively described voice coil loudspeaker voice coil 25 cooperates the ball top 273 of described vibrational system 27 to form sound greater than described ball top 273.On the other hand, for described Microspeaker 2, when voice coil loudspeaker voice coil 25 enlarged diameter, then described voice coil loudspeaker voice coil 25 numbers of turn reduce, under same power condition, and the then voice coil loudspeaker voice coil 25 lines corresponding overstriking in footpath, guarantee that so effectively described voice coil loudspeaker voice coil 25 can bear big electric current, and good heat dissipation effect reduces described voice coil loudspeaker voice coil 25 greatly and causes damage to Microspeaker 2 because of bearing the excessive or poor heat radiation of electric current, improves production reliability.
Only be preferred case study on implementation of the present utility model below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims (7)

1. Microspeaker, it comprises a voice coil loudspeaker voice coil, an elastic plate, a vibrating diaphragm and ball top, described vibrating diaphragm comprises the ball top that is positioned at central authorities and around the ring portion at ball top, the ball top of described vibrating diaphragm is located on described ball top, it is characterized in that: described elastic plate comprises that a central vibration section and is located at the extension of periphery, described central vibration section, described central vibration section is located at described ball top, and described extension is positioned at described ring subordinate side, and described voice coil loudspeaker voice coil one end is connected in described extension.
2. Microspeaker according to claim 1 is characterized in that: described central vibration section and described extension are positioned at same plane, and described extension extends to form from described central vibration section.
3. Microspeaker according to claim 1 is characterized in that: the central vibration section of described elastic plate is fixed in the inside edge of described ring portion.
4. Microspeaker according to claim 1 is characterized in that: the outside dimension of described extension is less than the ring portion Outside Dimensions of described vibrating diaphragm.
5. Microspeaker according to claim 1 is characterized in that: comprise that also one has the magnetic circuit system of magnetic gap, the other end of described voice coil loudspeaker voice coil is contained in the described magnetic gap.
6. Microspeaker according to claim 1 is characterized in that: described ball top is fixed in described central vibration section and is closed on vibrating diaphragm one side surface.
7. Microspeaker according to claim 1 is characterized in that: described voice coil loudspeaker voice coil adopts adhesive to be bonded in described elastic plate pushes up a side away from ball surface.
CN2010205918888U 2009-12-21 2010-11-04 Minitype speaker Expired - Lifetime CN201854413U (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200920261780.X 2009-12-21
CN200920261780 2009-12-21
CN2010205918888U CN201854413U (en) 2009-12-21 2010-11-04 Minitype speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205918888U CN201854413U (en) 2009-12-21 2010-11-04 Minitype speaker

Publications (1)

Publication Number Publication Date
CN201854413U true CN201854413U (en) 2011-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205918888U Expired - Lifetime CN201854413U (en) 2009-12-21 2010-11-04 Minitype speaker

Country Status (1)

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CN (1) CN201854413U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096221A (en) * 2013-01-31 2013-05-08 美特科技(苏州)有限公司 Laser welding speaker
CN109218881A (en) * 2018-08-10 2019-01-15 瑞声科技(新加坡)有限公司 Receiver mould group
WO2021232486A1 (en) * 2020-05-22 2021-11-25 瑞声声学科技(深圳)有限公司 Wireless earphone

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103096221A (en) * 2013-01-31 2013-05-08 美特科技(苏州)有限公司 Laser welding speaker
CN109218881A (en) * 2018-08-10 2019-01-15 瑞声科技(新加坡)有限公司 Receiver mould group
WO2021232486A1 (en) * 2020-05-22 2021-11-25 瑞声声学科技(深圳)有限公司 Wireless earphone

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20110601

CX01 Expiry of patent term