CN202551325U - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
CN202551325U
CN202551325U CN2011205708511U CN201120570851U CN202551325U CN 202551325 U CN202551325 U CN 202551325U CN 2011205708511 U CN2011205708511 U CN 2011205708511U CN 201120570851 U CN201120570851 U CN 201120570851U CN 202551325 U CN202551325 U CN 202551325U
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CN
China
Prior art keywords
magnet steel
sidewall
magnetic
plane
magnetic bowl
Prior art date
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Active
Application number
CN2011205708511U
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Chinese (zh)
Inventor
江文涛
石磊
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 Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
AAC Optoelectronic Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Optoelectronic 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 Optoelectronic Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to CN2011205708511U priority Critical patent/CN202551325U/en
Application granted granted Critical
Publication of CN202551325U publication Critical patent/CN202551325U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a loudspeaker which comprises a cone frame provided with side walls, a magnetic circuit system accommodated in the cone frame, and a vibration system fixed in the cone frame, wherein the magnetic circuit system comprises a magnetic bowl accommodated in the cone frame and a main magnetic steel assembled on the magnetic bowl, auxiliary magnetic steels are arranged between the side walls and the main magnetic steel, and gaps between the main magnetic steel and the auxiliary magnetic steels are magnetic gaps. The auxiliary magnetic steel is provided with bosses, wherein the bosses are derived at the short side end of the auxiliary magnetic steel and extend outwards along the long axis direction. The auxiliary magnetic steel comprises a first surface directly facing to the main magnetic steel, and the boss comprises a second surface which is away from the side wall and parallels to the first surface. Buckling parts matched with the bosses are derived and extend from the side walls, and the buckling parts are attached to the second surface so as to fix and position the auxiliary magnetic steels. The auxiliary magnetic structure disclosed by the utility model is capable of enabling manufacturing dimensions of the auxiliary magnetic steel to be more precise, and enabling positioning of the auxiliary magnetic steel relative to the cone frame to be more accurate and more stable, thereby ensuring acoustic performance of the loudspeaker.

Description

Loud speaker
[technical field]
The utility model relates to a kind of electroacoustic transducer, relates in particular in a kind of electroacoustic transducer the loud speaker that the signal of telecommunication is converted into voice signal.
[background technology]
Along with the fast development of wireless telecommunications, Global Mobile Phone is more and more, and people are not limited only to basic conversation to the requirement of mobile phone, more requires the face shaping of traditional mobile phone is proposed more requirements.Especially the arrival in 3G epoch, mobile multimedia technology be development thereupon also, and a lot of mobile phones have multiple amusement function, and like video playback, digital vedio recording, recreation, GPS navigation etc., this requires mobile phone screen increasing, so that better visual experience.
Present stage, in order to increase the magnetic property of magnetic circuit system, generally all can around main magnet steel, establish secondary magnet steel, at the two ends of secondary magnet steel chamfering is set; Extend on the basin frame to cooperate and be used to the stop part that stops that secondary magnet steel moves with chamfering, still, because chamfering has the inclined plane; Processing gets up to be difficult to controlling dimension, makes chamfering cooperate inaccuracy with stop part, therefore; Secondary magnet steel is easy to generate displacement, thereby influences magnetic gap, further influences the acoustical behavior of loud speaker.
Therefore, be necessary a kind of new loud speaker to be provided to above-mentioned shortcoming.
[utility model content]
The purpose of the utility model is to solve above-mentioned loud speaker and is difficult to processing because of the chamfering at secondary magnet steel two ends; Make chamfering cooperate inaccuracy with stop part, secondary magnet steel is easy to generate displacement, thereby influences magnetic gap; Further influence the deficiency of the acoustical behavior of loud speaker, and a kind of loud speaker is provided.
A kind of loud speaker; Comprise the basin frame that is provided with sidewall, be contained in the magnetic circuit system in the basin frame and be immobilizated in the vibrational system of basin frame; Said magnetic circuit system comprises magnetic bowl and the main magnet steel of assembly on said magnetic bowl that is contained in the basin frame; Be provided with secondary magnet steel between said sidewall and the main magnet steel, the slit between said main magnet steel and the secondary magnet steel is a magnetic gap, and said secondary magnet steel is outwards derived along its long axis direction from two short end and extended boss; Said secondary magnet steel comprises the first table plane over against main magnet steel; Said boss comprises that said sidewall is derived and extended the holding part that is clasped with boss away from the second table plane on sidewall and the parallel said first table plane, and said holding part attaches the said second table plane with the secondary magnet steel of stationary positioned.
Preferably, said secondary magnet steel also comprises the transverse plane that is positioned at two short end and the vertical first table plane and the second table plane, said this transverse plane of holding part butt.
Preferably, said sidewall comprise the long side wall and with the broadside sidewall of long side wall vertical connection, said secondary magnet steel is elongated and between long side wall and main magnet steel.
Preferably, said magnetic bowl is provided with magnetic bowl diapire, and said main magnet steel assembly is central in said magnetic bowl diapire, and said secondary magnet steel assembly is in said magnetic bowl bottom wall edge.
Preferably, the magnetic bowl sidewall that said magnetic bowl diapire is derived and extended vertical magnetic bowl diapire from two short end, said magnetic bowl sidewall is connected to the broadside sidewall.
Preferably, said vibrational system comprises that vibrating diaphragm and an end that periphery is immobilizated in the basin frame are immobilizated in the said vibrating diaphragm other end voice coil loudspeaker voice coil in the said magnetic gap that suspends, and said voice coil loudspeaker voice coil has voice coil leads.
Preferably, said loud speaker comprises the conducting terminal that is positioned at the vibrating diaphragm below and is embedded at the basin frame, and said voice coil leads one end is fixed in this conducting terminal to realize and extraneous electric connection.
Preferably, said holding part comprises deriving from sidewall and extends and the first of vertical sidewall, and the first that is positioned at basin frame the same side sidewall derives relatively and extends second portion, and said second portion attaches the said second table plane with the secondary magnet steel of stationary positioned.
The beneficial effect of the utility model is: the secondary magnet steel structure that the utility model discloses can make the manufacturing dimension of secondary magnet steel more accurate, and the location that makes the relative basin frame of secondary magnet steel has guaranteed the acoustical behavior of loud speaker more accurately with stable.
[description of drawings]
Fig. 1 is the three-dimensional exploded view of the utility model loud speaker;
Fig. 2 is the cutaway view of Fig. 1 embodiment;
Fig. 3 is the stereogram that Fig. 1 embodiment lacks vibrational system;
Fig. 4 is the stereogram after secondary magnet steel and consequent pole core exsomatize among Fig. 3.
[embodiment]
Below in conjunction with accompanying drawing and execution mode the utility model is described further.
As depicted in figs. 1 and 2, the utility model provides a kind of loud speaker 1, comprises the basin frame 10 that is provided with sidewall 101, is contained in magnetic circuit system 11 in the basin frame 10, is immobilizated in the vibrational system 12 of basin frame 10 and is embedded at the conducting terminal 13 in the basin frame 10.Said magnetic circuit system 11 comprise the magnetic bowl 14 that is contained in the basin frame 10, assembly on said magnetic bowl 14 main magnet steel 15 and secondary magnet steel 16 and attach said main magnet steel 15 respectively and the main pole core 17 and the consequent pole core 18 on secondary magnet steel 16 surfaces.Said vibrational system 12 comprise vibrating diaphragm 19 and an end that periphery is immobilizated in said basin frame be immobilizated in said vibrating diaphragm 19 and with the voice coil loudspeaker voice coil 20 of voice coil leads (indicating).Said conducting terminal 13 is positioned at vibrating diaphragm 19 belows, and voice coil leads one end is fixed in this conducting terminal 13 to realize and extraneous electric connection.Said conducting terminal 13 is embedded at basin frame 10; But part is exposed to basin frame 10 surfaces at least; Its exposed part that is positioned at vibrating diaphragm 19 belows is used for fixing voice coil leads; The part that is exposed to basin frame 10 belows is used to electrically connect external circuit, thereby guarantees that the outside signal of telecommunication can conduct to voice coil loudspeaker voice coil 20, further makes loud speaker 1 ability operate as normal.
Like Fig. 2 and shown in Figure 4, said secondary magnet steel 16 is arranged between sidewall 101 and the main magnet steel 15, and the gap between said secondary magnet steel 16 and the main magnet steel 15 is a magnetic gap, and the other end of said voice coil loudspeaker voice coil 20 is suspended in this magnetic gap.Said secondary magnet steel 16 is outwards derived along its long axis direction from two short end and is extended boss 161; Said secondary magnet steel 16 comprises the first table plane 162 over against main magnet steel 15; Said boss 161 comprises the second table plane 1611 away from sidewall 101 and the parallel said first table plane 162; Said sidewall 101 is derived and is extended the holding part 1011 that is clasped with boss 161; Said holding part 1011 comprises deriving from sidewall 101 and extends and the first 1012 of vertical sidewall 101; The first 1012 that is positioned at basin frame 10 the same side sidewalls 101 derives relatively and extends second portion 1013, and said second portion 1013 attaches the said second table plane 1611 with the secondary magnet steel 16 of stationary positioned.Said secondary magnet steel 16 also comprises the transverse plane 163 that is positioned at two short end and the vertical first table plane 162 and the second table plane 1611, said this transverse plane 163 of holding part 1011 butts.The secondary magnet steel 16 of this structure is processed easily; And extended boss 161 can guarantee more accurate with cooperating of basin frame 10; The derive second table plane 1611 of extended holding part 1011 abutment end planes 163 and boss 161 of the sidewall 101 of basin frame 10 not only guaranteed the location accurately, and secondary magnet steel 16 can not produce displacement; Guaranteed that magnetic gap can not change, further guaranteed the acoustical behavior of loud speaker 1.
As shown in Figure 3, said sidewall 101 comprise long side wall 102 and with the broadside sidewall 103 of long side wall 102 vertical connections.Said secondary magnet steel 16 is elongated, is a pair of magnet that are provided with at interval about main magnet steel 15 symmetries, and between long side wall 102 and main magnet steel 15.
Like Fig. 1 and shown in Figure 4, said magnetic bowl 14 is provided with magnetic bowl diapire 141, and said main magnet steel 15 assembly are in said magnetic bowl diapire 141 central authorities, and said secondary magnet steel 16 assembly are in said magnetic bowl diapire 141 edges.The magnetic bowl sidewall 142 that said magnetic bowl diapire 141 is derived and extended vertical magnetic bowl diapire 141 from two short end, said magnetic bowl sidewall 142 is connected to broadside sidewall 103.
Above-described only is the preferred embodiments of the 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 the protection range of the utility model.

Claims (8)

1. loud speaker; Comprise the basin frame that is provided with sidewall, be contained in the magnetic circuit system in the basin frame and be immobilizated in the vibrational system of basin frame; Said magnetic circuit system comprises magnetic bowl and the main magnet steel of assembly on said magnetic bowl that is contained in the basin frame; It is characterized in that: be provided with secondary magnet steel between said sidewall and the main magnet steel, the slit between said main magnet steel and the secondary magnet steel is a magnetic gap, and said secondary magnet steel is outwards derived along its long axis direction from two short end and extended boss; Said secondary magnet steel comprises the first table plane over against main magnet steel; Said boss comprises that said sidewall is derived and extended the holding part that is clasped with boss away from the second table plane on sidewall and the parallel said first table plane, and said holding part attaches the said second table plane with the secondary magnet steel of stationary positioned.
2. loud speaker according to claim 1 is characterized in that: said secondary magnet steel also comprises the transverse plane that is positioned at two short end and the vertical first table plane and the second table plane, said this transverse plane of holding part butt.
3. loud speaker according to claim 1 and 2 is characterized in that: said sidewall comprise the long side wall and with the broadside sidewall of long side wall vertical connection, said secondary magnet steel is elongated and between long side wall and main magnet steel.
4. loud speaker according to claim 3 is characterized in that: said magnetic bowl is provided with magnetic bowl diapire, and said main magnet steel assembly is central in said magnetic bowl diapire, and said secondary magnet steel assembly is in said magnetic bowl bottom wall edge.
5. loud speaker according to claim 4 is characterized in that: the magnetic bowl sidewall that said magnetic bowl diapire is derived and extended vertical magnetic bowl diapire from two short end, said magnetic bowl sidewall is connected to the broadside sidewall.
6. according to claim 1 or 5 described loud speakers, it is characterized in that: said vibrational system comprises that vibrating diaphragm and an end that periphery is immobilizated in the basin frame are immobilizated in the said vibrating diaphragm other end voice coil loudspeaker voice coil in the said magnetic gap that suspends, and said voice coil loudspeaker voice coil has voice coil leads.
7. loud speaker according to claim 6 is characterized in that: said loud speaker comprises the conducting terminal that is positioned at the vibrating diaphragm below and is embedded at the basin frame, and said voice coil leads one end is fixed in this conducting terminal to realize and extraneous electric connection.
8. according to claim 1 or 7 described loud speakers; It is characterized in that: said holding part comprises deriving from sidewall and extends and the first of vertical sidewall; The first that is positioned at basin frame the same side sidewall derives relatively and extends second portion, and said second portion attaches the said second table plane with the secondary magnet steel of stationary positioned.
CN2011205708511U 2011-12-30 2011-12-30 Loudspeaker Active CN202551325U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205708511U CN202551325U (en) 2011-12-30 2011-12-30 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205708511U CN202551325U (en) 2011-12-30 2011-12-30 Loudspeaker

Publications (1)

Publication Number Publication Date
CN202551325U true CN202551325U (en) 2012-11-21

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ID=47171880

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205708511U Active CN202551325U (en) 2011-12-30 2011-12-30 Loudspeaker

Country Status (1)

Country Link
CN (1) CN202551325U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103747395A (en) * 2013-10-31 2014-04-23 国光电器股份有限公司 Ultrathin loudspeaker-type radiator and damping ultrathin radiator
WO2020134356A1 (en) * 2018-12-27 2020-07-02 瑞声声学科技(深圳)有限公司 Speaker
WO2021114210A1 (en) * 2019-12-13 2021-06-17 瑞声声学科技(深圳)有限公司 Sound production device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103747395A (en) * 2013-10-31 2014-04-23 国光电器股份有限公司 Ultrathin loudspeaker-type radiator and damping ultrathin radiator
CN103747395B (en) * 2013-10-31 2018-06-22 国光电器股份有限公司 Ultrathin loudspeaker formula radiator and damping ultrathin radiator
WO2020134356A1 (en) * 2018-12-27 2020-07-02 瑞声声学科技(深圳)有限公司 Speaker
WO2021114210A1 (en) * 2019-12-13 2021-06-17 瑞声声学科技(深圳)有限公司 Sound production device

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