CN203912189U - Mini loudspeaker and loudspeaker module provided with the same - Google Patents

Mini loudspeaker and loudspeaker module provided with the same Download PDF

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Publication number
CN203912189U
CN203912189U CN201420356400.1U CN201420356400U CN203912189U CN 203912189 U CN203912189 U CN 203912189U CN 201420356400 U CN201420356400 U CN 201420356400U CN 203912189 U CN203912189 U CN 203912189U
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China
Prior art keywords
shell
microspeaker
sidewall
loud speaker
phonate hole
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CN201420356400.1U
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Chinese (zh)
Inventor
王兴龙
郭翔
张成飞
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Goertek Inc
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Goertek Inc
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Priority to CN201420356400.1U priority Critical patent/CN203912189U/en
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Abstract

The utility model discloses a mini loudspeaker and a loudspeaker module provided with the same, and relates to the technical field of electric-acoustic products. The mini loudspeaker comprises a front cover and a housing which are combined together. A vibration system and a magnetic circuit system are accommodated into the space formed by the front cover and the housing. The magnetic circuit system comprises a concentrating flux plate fixed on the housing. The concentrating flux plate is provided with an inner magnet and edge magnets surrounding the outer side of the inner magnet. The sidewall of the housing is provided with grooves at positions corresponding to the edge magnets. The edge magnets are located at the grooves, and the outer surfaces of the edges magnet are flush with the outer side of the sidewall. The side portion of the mini loudspeaker is provided with sound outgoing holes. Through the mini loudspeaker of the utility model, the loudspeaker module provided with the loudspeaker has a ultrathin structure, and at the same time, advantages of excellent acoustic performance and good sound sensation can be realized.

Description

Microspeaker and the loud speaker module of this loud speaker is installed
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of Microspeaker and the loud speaker module of this loud speaker is installed.
Background technology
Microspeaker is the important acoustic element of portable electric appts, for completing the conversion between the signal of telecommunication and voice signal, is a kind of energy conversion device.Existing Microspeaker generally includes protecgulum and the shell combining, and contains vibrational system and magnetic circuit system in the space that protecgulum and shell surround.Vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil being fixed together, and magnetic circuit system comprises and be fixed on the magnetic conductive board on shell and be fixed on internal magnet on magnetic conductive board and be looped around the limit magnet in internal magnet outside, and the phonate hole of Microspeaker is arranged on magnetic conductive board conventionally.Two deficiencies below the loud speaker that this kind of phonate hole is arranged on bottom can exist in being assembled to module time:
One, need between magnetic conductive board and module shell, reserve certain space, so that the inside and outside airflow of loud speaker, this will cause the thickness of module thicker, cannot meet the demand of some thinner electronic equipments, has limited the range of application of module in electronic equipment.
If do not reserve certain space between two magnetic conductive boards and module shell, can cause the inside and outside airflow of loud speaker not smooth, cause the problems such as the acoustical behavior of loud speaker reduces and tone sense weakens.
Utility model content
First technical problem to be solved in the utility model is to provide a kind of Microspeaker, and the inside and outside airflow of this Microspeaker is smooth and easy, especially in ultra-thin modular structure, still can keep excellent acoustical behavior and stronger tone sense.
Based on same inventive concept, second technical problem that will solve described in the utility model is to provide a kind of loud speaker module, and this loud speaker module has ultra-thin structure, and has excellent acoustical behavior and stronger tone sense.
For solving above-mentioned first technical problem, the technical solution of the utility model is:
A kind of Microspeaker, comprise the protecgulum and the shell that combine, in the space that described protecgulum and described shell surround, contain vibrational system and magnetic circuit system, described magnetic circuit system comprises the magnetic conductive board being fixed on described shell, described magnetic conductive board is provided with internal magnet and is looped around the limit magnet in described internal magnet outside, on the sidewall of described shell corresponding described in each position of limit magnet be provided with groove, described limit magnet is positioned at described groove, and the outer surface of described limit magnet flushes with the outer surface of described sidewall; The sidepiece of described Microspeaker is provided with phonate hole.
As a kind of execution mode, the described phonate hole of the common formation of the sidewall of described shell, described magnetic conductive board and described limit magnet.
As another kind of execution mode, the sidewall of described shell is provided with perforate, and described perforate forms described phonate hole.
As another execution mode, the sidewall of described shell is provided with breach, the described phonate hole of the common formation of described breach and described magnetic conductive board.
Wherein, described Microspeaker is rectangular configuration, and at least one sidewall of described shell is provided with described phonate hole.
Wherein, the single sidewall of described shell is provided with two described phonate holes, and two described phonate holes lay respectively at the two ends of described limit magnet.
In order to solve above-mentioned second technical problem, the technical solution of the utility model is:
A loud speaker module, comprises module shell, contains above-mentioned Microspeaker in described module shell.
Adopted after technique scheme, the beneficial effects of the utility model are:
Because the outer surface of limit magnet in the utility model Microspeaker and the outer surface of side wall of outer shell flush, and the phonate hole of loud speaker is positioned at the sidepiece of loud speaker.Limit magnet exposes the volume that can increase magnetic circuit system, promotes the acoustical behavior of loud speaker; The phonate hole of loud speaker is located at sidepiece, inside and outside still guaranteeing loud speaker in the situation that of can making loud speaker be blocked in sound hole, bottom, airflow is smooth and easy, and then the utility model Microspeaker need to not leave space while being arranged in module between bottom and module shell, in the situation that having reduced module thickness, still can keep excellent acoustical behavior and stronger tone sense, expand the scope of application of the module that the utility model loud speaker is installed.
Owing in the utility model loud speaker module, the Microspeaker that side goes out acoustic form being installed, the loud speaker that side is spoken not need between the bottom of loud speaker and module shell, leave space just can guarantee loud speaker inside and outside airflow smooth and easy, thereby the utility model loud speaker module has ultra-thin structure, also there is excellent acoustical behavior and stronger tone sense simultaneously, can meet the requirement of ultrathin electronic equipment, applied widely.
In sum, the utility model Microspeaker and the loud speaker module that this loud speaker is installed have solved in prior art that loud speaker module thickness is larger, the technical problem such as acoustical behavior is poor.The utility model Microspeaker makes the loud speaker module that this loud speaker is installed have ultra-thin structure, also has excellent acoustical behavior and stronger tone sense simultaneously.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of the utility model Microspeaker embodiment mono-;
Fig. 2 is the constitutional diagram of Fig. 1;
Fig. 3 is reverse view-the do not install magnetic conductive board of Fig. 2;
Fig. 4 is the structural representation of the utility model Microspeaker embodiment bis-;
Fig. 5 is the structural representation of the utility model Microspeaker embodiment tri-;
In figure: 10, protecgulum, 20a, shell, 20b, shell, 20c, shell, 30, ball top, 32, vibrating diaphragm, 34, voice coil loudspeaker voice coil, 36, voice coil leads, 40, magnetic conductive board, 42, internal magnet, 44, interior washer, 46, limit magnet, 48, limit washer, 50, connect shell fragment, 60a, phonate hole, 60b, phonate hole, 60c, phonate hole.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.
Embodiment mono-:
As shown in Fig. 1 and Fig. 2 are common, a kind of Microspeaker, is rectangular configuration, comprises the protecgulum 10 and the shell 20a that combine, in the space that protecgulum 10 and shell 20a surround, contains vibrational system and magnetic circuit system.On shell 20a, be also provided with two and be connected shell fragment 50 for what be electrically connected to vibrational system and loud speaker external circuit.
As shown in Fig. 1 and Fig. 2 are common, vibrational system comprises that edge is fixed on the vibrating diaphragm 32 between protecgulum 10 and shell 20a, vibrating diaphragm 32 is fixed with ball top 30 near the middle part of a side of protecgulum 10, the opposite side of vibrating diaphragm 32 is fixed with voice coil loudspeaker voice coil 34, the coiling tap of voice coil loudspeaker voice coil 34 is that 36, two voice coil leads 36 of two voice coil leads are connected respectively shell fragment 50 electrical connections with two.Magnetic circuit system comprises the magnetic conductive board 40 being fixed on shell 20a, the center of magnetic conductive board 40 inner sides is fixed with internal magnet 42 and interior washer 44 successively, and the marginal position of magnetic conductive board 40 inner sides is fixed with the limit magnet 46 of four bar shapeds and the limit washer 48 of four bar shapeds successively.Limit magnet 46 and limit washer 48 are looped around the outside of internal magnet 42 and interior washer 44, between internal magnet 42 and interior washer 44 and limit magnet 46 and limit washer 48, are provided with magnetic gap, and the end of voice coil loudspeaker voice coil 34 is positioned at magnetic gap.Voice coil loudspeaker voice coil 34 is done reciprocal cutting magnetic line movement according to the size and Orientation of the alternating current by its coiling in magnetic gap, and vibrating diaphragm 32 vibrates along with the reciprocating motion of voice coil loudspeaker voice coil 34, instigates air sounding, thereby completes the power conversion between electroacoustic.
As shown in Fig. 2 and Fig. 3 are common, one end that definition Microspeaker is provided with vibrational system is upper, under the one end that is provided with magnetic circuit system is.On the sidewall of shell 20a, the position of corresponding each limit magnet 46 is provided with the groove that Open Side Down, after Microspeaker assembling, each limit magnet 46 lays respectively at corresponding groove, and the outer surface of each limit magnet 46 all flushes with the outer surface of shell 20a sidewall, and limit magnet 46 is exposed at the outside of shell 20a.Limit magnet 46 is exposed can increase the volume of magnetic circuit system, is conducive to improve the acoustical behavior of Microspeaker.
As shown in Fig. 2 and Fig. 3 are common, groove length on the long limit, both sides of shell 20a is all greater than the length of corresponding limit magnet 46, be to leave certain space between the sidewall of shell 20a and the end of limit magnet 46, this space being surrounded by sidewall, limit magnet 46 and the magnetic conductive board 40 of shell 20a is communicated with loud speaker outside and inner chamber, is the sidepiece phonate hole 60a of loud speaker.In present embodiment, phonate hole 60a is provided with four altogether, and the long limit, both sides of loud speaker is respectively provided with two, and two phonate hole 60a that are positioned at the same side lay respectively at the two ends of limit magnet 46.The sidepiece of loud speaker is provided with phonate hole 60a, inside and outside still guaranteeing loud speaker in the situation that of can making loud speaker be blocked in sound hole, bottom, airflow is smooth and easy, and then the utility model Microspeaker does not need to leave space between magnetic conductive board and module shell while being arranged in module, in the situation that having reduced module thickness, still can keep excellent acoustical behavior and stronger tone sense, make module can meet the requirement of slim electric terminal, expanded the scope of application of loud speaker module.
Embodiment bis-:
As shown in Figure 4, present embodiment and embodiment mono-are basic identical, and its difference is:
The groove length on long limit, shell 20b both sides is suitable with corresponding limit magnet 46, be positioned on the sidewall of shell 20b at limit magnet 46 two ends and have a perforate, this perforate is communicated with outside and the inner chamber of loud speaker, and this perforate has formed the sidepiece phonate hole 60b of loud speaker.
Present embodiment has identical technique effect with embodiment mono-.
Embodiment tri-:
As shown in Figure 5, present embodiment and embodiment mono-are basic identical, and its difference is:
The groove length on long limit, shell 20c both sides is suitable with corresponding limit magnet 46, be positioned on the sidewall at groove two ends on long limit, shell 20c both sides and be respectively provided with a breach that Open Side Down, this breach and the common sidepiece phonate hole 60c that forms loud speaker of magnetic conductive board 40, outside and the inner chamber of connection loud speaker.
Present embodiment has identical technique effect with embodiment mono-.
The phonate hole that is positioned at loud speaker sidepiece in the various embodiments described above is all provided in a side of on long limit, relative both sides, and in practical application, technical staff can determine position and the quantity that phonate hole arranges according to the structure of loud speaker and module and specification requirement:
If need gas flow flux is less or the situation that sound hole, bottom can not blocked completely under can only on a side (comprising long limit or minor face) of loud speaker, side phonate hole be set;
If the gas flow flux needing is large or the situation that sound hole, bottom is blocked completely under can on four sides of loud speaker, side phonate hole be all set;
If the structure of loud speaker allows, side phonate hole also can be arranged on the both sides minor face that loud speaker is relative;
If side phonate hole can make loud speaker, inside and outside gas flow flux meets specification requirement, also the phonate hole of speaker bottom (being located on magnetic conductive board) can be removed, and can simplify like this structure and the processing technology of loud speaker.
A loud speaker module, comprises module shell, contains a kind of in above-mentioned various Microspeaker in module shell.This loud speaker module has ultra-thin structure, also has excellent acoustical behavior and stronger tone sense simultaneously, can meet the requirement of slim electronic equipment, and the scope of application is more extensive.
The utility model only be take the Microspeaker of rectangle structure and has been carried out detailed elaboration as the technical scheme that example opposite side magnet exposes and phonate hole is located at sidepiece, in practical application, this technical scheme is not limited to the loud speaker of rectangle structure, track type for example, in square with circular loud speaker, can adopt equally the technical scheme identical with the utility model to obtain the technique effect identical with the utility model, those skilled in the art do not need to pay creative work according to the description of this specification and just the technical solution of the utility model can be applied in the loud speaker of above-mentioned each structure, therefore expose and phonate hole is located at the embodiment that the technical scheme of sidepiece is applied in other structure of loudspeaker and is not described in detail in this about the utility model limit magnet.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of making, within all dropping on protection range of the present utility model.

Claims (10)

1. Microspeaker, comprise the protecgulum and the shell that combine, in the space that described protecgulum and described shell surround, contain vibrational system and magnetic circuit system, described magnetic circuit system comprises the magnetic conductive board being fixed on described shell, described magnetic conductive board is provided with internal magnet and is looped around the limit magnet in described internal magnet outside, it is characterized in that, on the sidewall of described shell corresponding described in each position of limit magnet be provided with groove, described limit magnet is positioned at described groove, and the outer surface of described limit magnet flushes with the outer surface of described sidewall; The sidepiece of described Microspeaker is provided with phonate hole.
2. Microspeaker according to claim 1, is characterized in that, the described phonate hole of the common formation of the sidewall of described shell, described magnetic conductive board and described limit magnet.
3. Microspeaker according to claim 1, is characterized in that, the sidewall of described shell is provided with perforate, and described perforate forms described phonate hole.
4. Microspeaker according to claim 1, is characterized in that, the sidewall of described shell is provided with breach, the described phonate hole of the common formation of described breach and described magnetic conductive board.
5. according to the Microspeaker described in the arbitrary claim of claim 2 to 4, it is characterized in that, described Microspeaker is rectangular configuration, and at least one sidewall of described shell is provided with described phonate hole.
6. Microspeaker according to claim 5, is characterized in that, the single sidewall of described shell is provided with two described phonate holes, and two described phonate holes lay respectively at the two ends of described limit magnet.
7. Microspeaker according to claim 6, is characterized in that, a sidewall of described shell is provided with described phonate hole.
8. Microspeaker according to claim 6, is characterized in that, on two relative sidewalls of described shell, is equipped with described phonate hole.
9. Microspeaker according to claim 6, is characterized in that, on four sidewalls of described shell, is equipped with described phonate hole.
10. loud speaker module, comprises module shell, it is characterized in that, contains Microspeaker claimed in claim 1 in described module shell.
CN201420356400.1U 2014-06-30 2014-06-30 Mini loudspeaker and loudspeaker module provided with the same Active CN203912189U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420356400.1U CN203912189U (en) 2014-06-30 2014-06-30 Mini loudspeaker and loudspeaker module provided with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420356400.1U CN203912189U (en) 2014-06-30 2014-06-30 Mini loudspeaker and loudspeaker module provided with the same

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016078561A1 (en) * 2014-11-20 2016-05-26 歌尔声学股份有限公司 Loudspeaker structure
CN105812998A (en) * 2016-04-27 2016-07-27 创达电子(潍坊)有限公司 Balanced armature loudspeaker
CN106101961A (en) * 2016-08-17 2016-11-09 上海安费诺永亿通讯电子有限公司 Ultra-thin sound chamber module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016078561A1 (en) * 2014-11-20 2016-05-26 歌尔声学股份有限公司 Loudspeaker structure
US10057687B2 (en) 2014-11-20 2018-08-21 Goertek, Inc. Speaker structure
CN105812998A (en) * 2016-04-27 2016-07-27 创达电子(潍坊)有限公司 Balanced armature loudspeaker
CN105812998B (en) * 2016-04-27 2018-07-17 创达电子(潍坊)有限公司 A kind of balanced armature loud speaker
CN106101961A (en) * 2016-08-17 2016-11-09 上海安费诺永亿通讯电子有限公司 Ultra-thin sound chamber module

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GR01 Patent grant
C56 Change in the name or address of the patentee
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee after: Goertek Inc.

Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee before: Goertek Inc.