CN203708471U - Loudspeaker - Google Patents

Loudspeaker Download PDF

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Publication number
CN203708471U
CN203708471U CN201320868264.XU CN201320868264U CN203708471U CN 203708471 U CN203708471 U CN 203708471U CN 201320868264 U CN201320868264 U CN 201320868264U CN 203708471 U CN203708471 U CN 203708471U
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CN
China
Prior art keywords
voice coil
weld tabs
wire
lead
elasticity arm
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Active
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CN201320868264.XU
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Chinese (zh)
Inventor
柳林
杨曦霖
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AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Optoelectronic Changzhou Co Ltd
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Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Optoelectronic Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to CN201320868264.XU priority Critical patent/CN203708471U/en
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Publication of CN203708471U publication Critical patent/CN203708471U/en
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Abstract

The utility model relates to a loudspeaker, comprising a frame, a conductive terminal, a magnetic circuit system, and a vibration system. The vibration system comprises a vibrating diaphragm, a first voice coil, a second voice coil, and a FPC elastic plate. The first voice coil and the second voice coil are respectively provided with two leads. The FPC elastic plate is provided with a main body portion and an elastic arm extending from the main body portion. The main body portion is provided with soldering lugs electrically connected with the elastic arm. The four leads are respectively electrically welded with the soldering lugs. The soldering lugs are electrically connected with the external through the elastic arm. The utility model provides a novel loudspeaker, through arranging the soldering lugs on the FPC elastic plate, telecommunication conduction of the voice coils are realized by the elastic arm of the FPC elastic plate. The soldering lugs and the voice coils vibrate synchronously, thereby greatly reducing the voice coil leads from being broken or risks of falling off the soldering lugs.

Description

Loud speaker
[technical field]
The utility model relates to electroacoustic transduction field, relates in particular to a kind of 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 call to the requirement of mobile phone, more requires the face shaping of traditional mobile phone to propose more requirements.Especially the arrival in 3G epoch, Technology of Mobile Multimedia is development thereupon also, and a lot of mobile phones have multiple amusement function, and as video playback, digital vedio recording, game, GPS navigation etc., this requires mobile phone screen increasing, so that better visual experience.
Traditional multiple voice coils loudspeaker at present, for voice coil loudspeaker voice coil and the external world are electrically conducted, all need to be on basin frame injection moulding multi-disc weld tabs, then lead-in wire is electrically fixed on respectively on weld tabs, because weld tabs is actionless, along with the vibration of membrane of shaking, lead-in wire will carry out high frequency bending motion always, easily like this cause wire breaking or come off from weld tabs, thereby having a strong impact on the quality of loud speaker.
Therefore, be necessary to provide a kind of novel loud speaker for above-mentioned shortcoming.
[utility model content]
The purpose of this utility model is to provide a kind of loud speaker, it has solved because weld tabs is static and has been fixed on basin frame, and the lead-in wire that one end is fixed on above-mentioned weld tabs is followed vibrating diaphragm vibration and is produced high frequency bending motion, thus the technical problem that easily causes wire breaking or come off from weld tabs.
In order to solve the problems of the technologies described above, the utility model provides a kind of loud speaker, it comprises basin frame, be fixed on the conducting terminal of described basin frame, and be contained in magnetic circuit system and the vibrational system in described basin frame, described vibrational system comprises vibrating diaphragm, drive the first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil of described vibrating diaphragm vibration, and the FPC diving board being connected with described the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil, the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil are positioned at same level relative spacing setting, described the first voice coil loudspeaker voice coil is provided with the first lead-in wire and the second lead-in wire, described the second voice coil loudspeaker voice coil is provided with the 3rd lead-in wire and the 4th lead-in wire, described FPC diving board is provided with at the main part between described the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil with from described main part and extends and be fixed on the elasticity arm on described basin frame, on described main part, be provided with weld tabs, described the first lead-in wire, the second lead-in wire, the 3rd lead-in wire and the 4th lead-in wire are electrically welded in respectively on described weld tabs, described weld tabs electrically conducts by elasticity arm and the external world.
Preferably, described elasticity arm comprises the first elasticity arm, the second elasticity arm, the 3rd elasticity arm and the 4th elasticity arm, described weld tabs is included in four spaces of array on main part and arranges and distinguish successively and the first weld tabs, the second weld tabs, the 3rd weld tabs and the 4th weld tabs of above-mentioned four articles of elasticity arm electrical communication, described the first lead-in wire, the second lead-in wire, the 3rd lead-in wire and the 4th lead-in wire are electrically welded in respectively on described the first weld tabs, the second weld tabs, the 3rd weld tabs and the 4th weld tabs successively, and above-mentioned four weld tabs electrically conduct by above-mentioned four elasticity arms and the external world.
Preferably, described the first lead-in wire and the second lead-in wire and the 3rd lead-in wire and the 4th side being oppositely arranged from described the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil respectively that goes between is drawn.
Preferably, described the first weld tabs and the second weld tabs are near described the first voice coil loudspeaker voice coil setting, described the 3rd weld tabs and the 4th weld tabs are near described the second voice coil loudspeaker voice coil setting, and described the first weld tabs and the 3rd weld tabs are oppositely arranged on the long axis direction of described basin frame, described the second weld tabs and the 4th weld tabs are oppositely arranged on the long axis direction of described basin frame, described the first weld tabs and the 4th weld tabs are diagonal angle setting mutual electrical communication, and described the second weld tabs and the 3rd weld tabs are diagonal angle setting mutual electrical communication.
Preferably, described the first elasticity arm, the second elasticity arm, the 3rd elasticity arm and the 4th elasticity arm are respectively successively from extending near the position of described the first weld tabs, the second weld tabs, the 3rd weld tabs and the 4th weld tabs.
Preferably, described the first voice coil loudspeaker voice coil is between described the first elasticity arm and the second elasticity arm, and described the second voice coil loudspeaker voice coil is between described the 3rd elasticity arm and the 4th elasticity arm.
Preferably, described conducting terminal quantity is two and is arranged at respectively on two short sidewalls of described basin frame, described the first weld tabs and the 3rd weld tabs respectively with above-mentioned two conducting terminal electrical communication.
Preferably, above-mentioned weld tabs is just to vibrating diaphragm setting, and described vibrating diaphragm is just provided with along the groove being recessed to form away from the direction of described weld tabs the position of above-mentioned weld tabs.
Preferably, described magnetic circuit system comprise yoke, assembly in the middle magnet steel at described yoke centre position place, assembly in described yoke and about the symmetrical spaced a pair of main magnet steel of magnet steel in the middle of described, assembly in described yoke and about above-mentioned main magnet steel and the symmetrical spaced a pair of secondary magnet steel of middle magnet steel and be attached at respectively above-mentioned main magnet steel, middle magnet steel and the main pole core on secondary magnet steel surface, middle pole piece and consequent pole core.
Preferably, described yoke is rectangular, its four corner positions are respectively equipped with through hole, the position of the corresponding through hole of described basin frame is provided with the projection being fixed with described through hole, the centre position place of described yoke is provided with the leak holes that connects described yoke, and described leak holes and magnetic gap conducting are for balance inside acoustic pressure.
The beneficial effects of the utility model are: the utility model provides a kind of New-type loudspeaker, it is by being arranged at weld tabs on FPC diving board, utilize the elasticity arm of FPC diving board to realize voice coil loudspeaker voice coil and extraneous telecommunications conducting, and weld tabs and voice coil leads synchronous vibration, the risk that greatly reduces voice coil leads fracture or come off from weld tabs.
[brief description of the drawings]
Fig. 1 is the three-dimensional exploded view of the utility model loud speaker;
Fig. 2 is the cutaway view of loud speaker shown in Fig. 1;
Fig. 3 is the stereogram that loud speaker shown in Fig. 1 removes protecgulum and vibrating diaphragm;
Fig. 4 is the vertical view of the FPC diving board in loud speaker shown in Fig. 1.
[embodiment]
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
Refer to shown in Fig. 1 and Fig. 2, the utility model provides a kind of loud speaker 100, and it comprises basin frame 1, be fixed on the conducting terminal 2 of described basin frame 1, be contained in magnetic circuit system in described basin frame 1 and vibrational system and form the protecgulum 5 of receiving space with described basin frame 1.The FPC diving board 43 that the first voice coil loudspeaker voice coil 41 that described vibrational system comprises vibrating diaphragm 40, drive described vibrating diaphragm 40 to vibrate and be positioned at same level and relative spacing setting is connected with the second voice coil loudspeaker voice coil 42 and with described the first voice coil loudspeaker voice coil 41 and the second voice coil loudspeaker voice coil 42.
Described the first voice coil loudspeaker voice coil 41 is provided with the first lead-in wire 411 and the second lead-in wire 412, described the second voice coil loudspeaker voice coil 42 is provided with the 3rd lead-in wire 421 and the 4th lead-in wire 422, and the side that described the first lead-in wire 411 and the second lead-in wire 412 and the 3rd lead-in wire 421 and the 4th lead-in wire 422 are oppositely arranged from described the first voice coil loudspeaker voice coil 41 and the second voice coil loudspeaker voice coil 42 is respectively drawn.
Described FPC diving board 43 is provided with main part 430 between described the first voice coil loudspeaker voice coil 41 and the second voice coil loudspeaker voice coil 42 and extends and be fixed on the elasticity arm 431 on described basin frame 1 from described main part 430, on described main part 430, be provided with weld tabs 432, described the first lead-in wire 411, the second lead-in wire 412, the 3rd lead-in wire 421 and the 4th lead-in wire 422 are electrically welded in respectively on described weld tabs 432, and described weld tabs 432 electrically conducts with the external world by elasticity arm 431.
Described magnetic circuit system comprises yoke 30, assembly is in the middle magnet steel 31 at described yoke 30 centre position places, assembly is in described yoke 30 and about the symmetrical spaced a pair of main magnet steel 32 of magnet steel in the middle of described 31, assembly is in described yoke 30 and about above-mentioned main magnet steel 32 and the symmetrical spaced a pair of secondary magnet steel 33 of middle magnet steel 31, and be attached at respectively above-mentioned main magnet steel 32, middle magnet steel 31, and the main pole core 320 on secondary magnet steel 33 surfaces, middle pole piece 310, and consequent pole core 330.
Shown in Fig. 1 and Fig. 3, described elasticity arm 431 comprises the first elasticity arm 4311, the second elasticity arm 4312, the 3rd elasticity arm 4313 and the 4th elasticity arm 4314, the inside of described the first elasticity arm 4311, the second elasticity arm 4312, the 3rd elasticity arm 4313 and the 4th elasticity arm 4314 is provided with conductive layer, this conductive layer dotted portion as shown in Figure 4.Described weld tabs 432 is included in four spaces of array on described main part 430 and arranges and distinguish successively and the first weld tabs 4321, the second weld tabs 4322, the 3rd weld tabs 4323 and the 4th weld tabs 4324 of above-mentioned the first elasticity arm 4311, the second elasticity arm 4312, the 3rd elasticity arm 4313 and the 4th elasticity arm 4314 electrical communication.Described the first elasticity arm 4311, the second elasticity arm 4312, the 3rd elasticity arm 4313 and the 4th elasticity arm 4314 are respectively successively from extending near the position of described the first weld tabs 4321, the second weld tabs 4322, the 3rd weld tabs 4323 and the 4th weld tabs 4324.
Described the first weld tabs 4321 and the second weld tabs 4322 arrange near described the first voice coil loudspeaker voice coil 41, described the 3rd weld tabs 4323 and the 4th weld tabs 4324 arrange near described the second voice coil loudspeaker voice coil 42, and described the first weld tabs 4321 and the 3rd weld tabs 4323 are oppositely arranged on the long axis direction of described basin frame 1, described the 3rd weld tabs 4323 and the 4th weld tabs 4324 are oppositely arranged on the long axis direction of described basin frame 1, described the first weld tabs 4321 and the 3rd weld tabs 4323 are diagonal angle setting mutual electrical communication, described the second weld tabs 4322 and the 4th weld tabs 4324 are diagonal angle setting mutual electrical communication, thereby realize the cross-conduction of above-mentioned four weld tabs, by this special electric connection mode, described the first voice coil loudspeaker voice coil 41 and the second voice coil loudspeaker voice coil 42 can be realized and being connected in parallel, not only can make the first voice coil loudspeaker voice coil 41 and the second voice coil loudspeaker voice coil 42 can phase mutual interference, and the all-in resistance of loud speaker 100 has lowered, in selecting wire for described loud speaker 100, can select the wire of more overstriking, strengthen the structural stability of loud speaker 100.
Described the first lead-in wire 411, the second lead-in wire 412, the 3rd lead-in wire 421 and the 4th lead-in wire 422 are electrically welded in respectively on described the first weld tabs 4321, the second weld tabs 4322, the 3rd weld tabs 4323 and the 4th weld tabs 4324 successively, and above-mentioned the first weld tabs 4321, the second weld tabs 4322, the 3rd weld tabs 4323 and the 4th weld tabs 4324 electrically conduct to realize with the external world by being electrically connected successively above-mentioned the first elasticity arm 4311, the second elasticity arm 4312, the 3rd elasticity arm 4313 and the 4th elasticity arm 4314.
Described the first voice coil loudspeaker voice coil 41 is between described the first elasticity arm 4311 and the second elasticity arm 4312, and described the second voice coil loudspeaker voice coil 42 is between described the 3rd elasticity arm 4313 and the 4th elasticity arm 4314.
Described conducting terminal 2 quantity are two and are arranged at respectively on two short sidewalls of described basin frame 1, described the first weld tabs 4321 and the 3rd weld tabs 4323 respectively with above-mentioned two conducting terminal 2 electrical communication.
In conjunction with shown in Fig. 2, above-mentioned weld tabs 432 just arranges vibrating diaphragm 40 again, and described vibrating diaphragm 40 is just provided with along the groove 401 being recessed to form away from the direction of described weld tabs 432 position of above-mentioned weld tabs 432.Described groove 401 not only can be dodged the sealing of wire bonds on weld tabs 432 time, and can be by regulating sealing amount regulate the weight of whole vibrational system 4.
Described yoke 30 is rectangular, and its four corner positions are respectively equipped with through hole 301, and the position of the corresponding through hole 301 of described basin frame 1 is provided with the projection 10 being fixed with described through hole 301.In the time assembling, described projection 10 inserts in these through holes 301, and then heat is melted described projection 10, can make yoke 30 firm be fixed on basin frame 1.
The centre position place of described yoke 30 is provided with the leak holes 302 that connects described yoke 30, and described leak holes 302 and magnetic gap conducting are for balance inside acoustic pressure.
The utility model provides a kind of New-type loudspeaker, it is by being arranged at weld tabs 4321,4322,4323 and 4324 on FPC diving board 43, utilize the elasticity arm 4311,4312,4313 and 4314 of FPC diving board 43 to realize voice coil loudspeaker voice coil 41,42 and extraneous telecommunications conducting, and weld tabs 432 and voice coil leads 411,412,421 and 422 synchronous vibrations, the risk that greatly reduces voice coil leads fracture or come off from weld tabs 432.
Above-described is only preferred embodiments of the present utility model; it should be pointed out that for the person of ordinary skill of the art at this, do not departing under the prerequisite of the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.

Claims (10)

1. a loud speaker, it comprises basin frame, be fixed on the conducting terminal of described basin frame, and be contained in magnetic circuit system and the vibrational system in described basin frame, described vibrational system comprises vibrating diaphragm, drive the first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil of described vibrating diaphragm vibration, and the FPC diving board being connected with described the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil, the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil are positioned at same level relative spacing setting, described the first voice coil loudspeaker voice coil is provided with the first lead-in wire and the second lead-in wire, described the second voice coil loudspeaker voice coil is provided with the 3rd lead-in wire and the 4th lead-in wire, it is characterized in that, described FPC diving board is provided with at the main part between described the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil with from described main part and extends and be fixed on the elasticity arm on described basin frame, on described main part, be provided with weld tabs, described the first lead-in wire, the second lead-in wire, the 3rd lead-in wire and the 4th lead-in wire are electrically welded in respectively on described weld tabs, described weld tabs electrically conducts by elasticity arm and the external world.
2. loud speaker according to claim 1, it is characterized in that: described elasticity arm comprises the first elasticity arm, the second elasticity arm, the 3rd elasticity arm, and the 4th elasticity arm, described weld tabs is included in four spaces of array on main part and arranges and distinguish successively and the first weld tabs of above-mentioned four elasticity arm electrical communication, the second weld tabs, the 3rd weld tabs and the 4th weld tabs, described the first lead-in wire, the second lead-in wire, the 3rd lead-in wire and the 4th lead-in wire are electrically welded in respectively described the first weld tabs successively, the second weld tabs, on the 3rd weld tabs and the 4th weld tabs, above-mentioned four weld tabs electrically conduct by above-mentioned four elasticity arms and the external world.
3. loud speaker according to claim 2, is characterized in that: described the first lead-in wire and the second lead-in wire and the 3rd lead-in wire and the 4th side being oppositely arranged from described the first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil respectively that goes between is drawn.
4. loud speaker according to claim 3, it is characterized in that: described the first weld tabs and the second weld tabs are near described the first voice coil loudspeaker voice coil setting, described the 3rd weld tabs and the 4th weld tabs are near described the second voice coil loudspeaker voice coil setting, and described the first weld tabs and the 3rd weld tabs are oppositely arranged on the long axis direction of described basin frame, described the second weld tabs and the 4th weld tabs are oppositely arranged on the long axis direction of described basin frame, described the first weld tabs and the 4th weld tabs are diagonal angle setting mutual electrical communication, and described the second weld tabs and the 3rd weld tabs are diagonal angle setting mutual electrical communication.
5. loud speaker according to claim 4, is characterized in that: described the first elasticity arm, the second elasticity arm, the 3rd elasticity arm and the 4th elasticity arm are respectively successively from extending near the position of described the first weld tabs, the second weld tabs, the 3rd weld tabs and the 4th weld tabs.
6. loud speaker according to claim 4, is characterized in that, described the first voice coil loudspeaker voice coil is between described the first elasticity arm and the second elasticity arm, and described the second voice coil loudspeaker voice coil is between described the 3rd elasticity arm and the 4th elasticity arm.
7. loud speaker according to claim 4, is characterized in that: described conducting terminal quantity is two and is arranged at respectively on two short sidewalls of described basin frame, described the first weld tabs and the 3rd weld tabs respectively with above-mentioned two conducting terminal electrical communication.
8. according to the loud speaker described in claim 1 to 7 any one, it is characterized in that, above-mentioned weld tabs is just to vibrating diaphragm setting, and described vibrating diaphragm is just provided with along the groove being recessed to form away from the direction of described weld tabs the position of above-mentioned weld tabs.
9. loud speaker according to claim 1, it is characterized in that, described magnetic circuit system comprise yoke, assembly in the middle magnet steel at described yoke centre position place, assembly in described yoke and about the symmetrical spaced a pair of main magnet steel of magnet steel in the middle of described, assembly in described yoke and about above-mentioned main magnet steel and the symmetrical spaced a pair of secondary magnet steel of middle magnet steel and be attached at respectively above-mentioned main magnet steel, middle magnet steel and the main pole core on secondary magnet steel surface, middle pole piece and consequent pole core.
10. loud speaker according to claim 9, it is characterized in that, described yoke is rectangular, its four corner positions are respectively equipped with through hole, the position of the corresponding through hole of described basin frame is provided with the projection being fixed with described through hole, the centre position place of described yoke is provided with the leak holes that connects described yoke, and described leak holes and magnetic gap conducting are for balance inside acoustic pressure.
CN201320868264.XU 2013-12-26 2013-12-26 Loudspeaker Active CN203708471U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320868264.XU CN203708471U (en) 2013-12-26 2013-12-26 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320868264.XU CN203708471U (en) 2013-12-26 2013-12-26 Loudspeaker

Publications (1)

Publication Number Publication Date
CN203708471U true CN203708471U (en) 2014-07-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107682790A (en) * 2017-03-31 2018-02-09 山东共达电声股份有限公司 A kind of loudspeaker
CN111093138A (en) * 2019-12-13 2020-05-01 瑞声科技(新加坡)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
CN107682790A (en) * 2017-03-31 2018-02-09 山东共达电声股份有限公司 A kind of loudspeaker
WO2018177035A1 (en) * 2017-03-31 2018-10-04 山东共达电声股份有限公司 Loudspeaker
CN107682790B (en) * 2017-03-31 2020-10-27 山东共达电声股份有限公司 Loudspeaker
CN111093138A (en) * 2019-12-13 2020-05-01 瑞声科技(新加坡)有限公司 Sound production device

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Legal Events

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

Effective date of registration: 20170414

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

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

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

Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167

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

Patentee before: AAC Optoelectronic (Changzhou) Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20181127

Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore

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

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

Co-patentee before: AAC Optoelectronic (Changzhou) Co., Ltd.

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