CN201967111U - Energy converter - Google Patents

Energy converter Download PDF

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Publication number
CN201967111U
CN201967111U CN201120002573XU CN201120002573U CN201967111U CN 201967111 U CN201967111 U CN 201967111U CN 201120002573X U CN201120002573X U CN 201120002573XU CN 201120002573 U CN201120002573 U CN 201120002573U CN 201967111 U CN201967111 U CN 201967111U
Authority
CN
China
Prior art keywords
magnetic
magnet steel
voice coil
gap
conductive board
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
CN201120002573XU
Other languages
Chinese (zh)
Inventor
江文涛
石磊
张�雄
吴三友
李林珍
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 CN201120002573XU priority Critical patent/CN201967111U/en
Application granted granted Critical
Publication of CN201967111U publication Critical patent/CN201967111U/en
Priority claimed from US13/332,363 external-priority patent/US8649550B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to the field of minitype electro-acoustic transducers, in particular to an energy converter which can convert electric energy into acoustic energy, and comprises a magnetic circuit unit with a conductive plate, wherein the conductive plate is provided with at least two main magnetic steels which are separated from each other; two ends of each main magnetic steel, facing the long edge of the conductive plate, are respectively provided with a pair of auxiliary magnetic steel; a gap is reserved between the auxiliary magnetic steel and the main magnetic steel, and a magnetic gap is formed between the auxiliary magnetic steel and the conductive plate, so that the magnetic circuit unit with multiple magnetic circuits can be formed; and the sound coil is suspended in each magnetic gap and is connected with a vibration membrane. The energy converter can drive the large-area vibration membrane to vibrate and produce sound, so that the problem of insufficient driving force can be solved, and the sensitivity and the performance of the loudspeaker are also improved.

Description

Transducer
[technical field]
The utility model relates to miniature electro-acoustic transducer field, specifically refers to a kind of transducer that converts electrical energy into acoustic energy.
[background technology]
Development along with wireless telecommunications, Global Mobile Phone Users is more and more, the user not only is satisfied with conversation to the requirement of mobile phone, and want high-quality communication effect can be provided, especially at present the development of mobile multimedia technology, the speech quality of mobile phone becomes more important, and the microphone of mobile phone is as the voice pick device of mobile phone, and its design quality directly influences speech quality.
Usually the transducing microphone device of dependency structure comprises a plastic casing and is contained in the interior minitype acoustic generator body of housing.Described minitype acoustic generator body comprises the magnetic conductive board that is placed in the basin frame, be contained in permanent magnet in the magnetic conductive board, be arranged at the single vibrating voice coil in the magnetic gap that permanent magnet and magnetic bowl-type become, the vibrating diaphragm that links to each other with vibrating voice coil, and the inlet wire of voice coil loudspeaker voice coil and outlet are welded on the interior pcb board of housing.Yet for the loud speaker of elongated shape, because the restriction of self structure, large-area vibrating diaphragm is difficult to by a driving that magnetic circuit unit is stable, and the sensitivity of the loud speaker of a magnetic circuit is also relatively poor, and the performance of loud speaker is very unstable like this.
[utility model content]
The purpose of this utility model is to solve the magnetic circuit unit actuating force portion foot of existing electroacoustic transducer, is difficult to the problem of stabilized driving vibrating diaphragm sounding, and proposes a kind of transducer.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of transducer, comprise the magnetic circuit unit that is provided with a magnetic conductive board, wherein said magnetic conductive board is provided with at least two main magnet steel that are separated from each other, each main magnet steel is equipped with a secondary magnet steel towards the two ends of the long side direction of magnetic conductive board, be provided with the gap between the secondary magnet steel of described main magnet steel and relative set and constitute magnetic gap with magnetic conductive board, the voice coil loudspeaker voice coil that suspends in described each magnetic gap, described voice coil loudspeaker voice coil is connected with a vibrating diaphragm.
Preferably, be provided with first gap between the described adjacent pair magnet steel.
Further, described magnetic conductive board is provided with the magnetic base plate, derives from magnetic base plate both sides main magnet steel is folded at least two pairs of middle magnetic side plates, is provided with second gap between described magnetic side plate and the main magnet steel.
Be provided with third space between described every pair of magnetic side plate.
Described adjacent secondary magnet steel is folded in the third space.
Described secondary magnet steel is conflicted and is connected on the magnetic side plate, and is connected together with the magnetic base plate.
Described vibrating diaphragm is provided with the ball top consistent with voice coil loudspeaker voice coil quantity, each ball top and corresponding voice coil loudspeaker voice coil connection.
Transducer of the present utility model, comprise the magnetic circuit unit that is provided with a magnetic conductive board, wherein said magnetic conductive board is provided with at least two main magnet steel that are separated from each other, each main magnet steel is equipped with a secondary magnet steel towards the two ends of the long side direction of magnetic conductive board, be provided with the gap between described secondary magnet steel and the main magnet steel and constitute magnetic gap with magnetic conductive board, constitute the magnetic circuit unit of multipath magnetic circuit like this, the voice coil loudspeaker voice coil that suspends in described each magnetic gap, described voice coil loudspeaker voice coil is connected with a vibrating diaphragm.Driving large tracts of land vibrating diaphragm vibration sounding that can be strong has solved and has driven hypodynamic problem, has also improved the sensitivity and the performance of loud speaker.
[description of drawings]
The perspective view that Fig. 1 separates with magnetic circuit unit for vibrating diaphragm of the present utility model;
Fig. 2 is a magnetic circuit unit cross-sectional view of the present utility model;
Fig. 3 is a magnetic circuit unit blast structural representation of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is elaborated.
Ginseng Fig. 1,2 and shown in Figure 3, be the utility model transducer, comprise magnetic circuit unit 10, described magnetic circuit unit comprises a magnetic conductive board 11, described magnetic conductive board 11 is provided with magnetic base plate 110, derives the magnetic side plate 111,112 that is arranged in parallel from magnetic base plate 110 both sides, in the present embodiment, the quantity of magnetic conductance plate 111,112 is 2 pairs, and the quantity of magnetic conductance plate 111,112 is not restricted to this in the right practical application.Be provided with third space 116 between described every pair of adjacent magnetic side plate 111,112; The two ends of described magnetic negative 110 all also are provided with magnetic supporting bracket 113,114.
For a plurality of magnetic gap are set on magnetic conductive board 11, described magnetic conductive board 11 is provided with a plurality of main magnet steel corresponding with magnetic gap quantity 12,13, each main magnet steel 12 or 13 two ends towards magnetic conductive board 11 long side directions are equipped with secondary magnet steel 121,122 or 131,132, are provided with the gap so that suspend voice coil loudspeaker voice coil between described secondary magnet steel 121,122 and the main magnet steel 12; Described main magnet steel 12,13 is separately positioned between the corresponding magnetic side plate 111,112, and is provided with the second corresponding gap 120,130 mutually so that form magnetic gap, and the quantity quantity in the present embodiment of main magnet steel 12,13 is two, but is not restricted to this.
In addition, described adjacent secondary magnet steel 122,131 is folded in the third space 116 and is installed on the connecting plate 115 that connects adjacent magnetic circuit.In order to improve the actuating force of magnetic circuit unit, be provided with first gap 14 between the described adjacent pair magnet steel 122,131.
In order to form complete magnetic loop, described secondary magnet steel 131,132 conflict is connected on the magnetic side plate 112, and be connected together with magnetic base plate 110, because second gap 120,130 respectively with main magnet steel and secondary magnet steel between the gap communicate, to form magnetic gap, a voice coil loudspeaker voice coil suspends in described each magnetic gap, described voice coil loudspeaker voice coil is connected with a vibrating diaphragm 21, described vibrating diaphragm 21 is provided with the ball top consistent with voice coil loudspeaker voice coil quantity, each ball top and corresponding voice coil loudspeaker voice coil connection, so that drive vibrating diaphragm 21 vibration soundings that have a plurality of voice coil loudspeaker voice coils, each is main, be equipped with the pole piece 15 that improves magnetic flux on the secondary magnet steel.
The same magnetic conductive board of the utility model is provided with a plurality of main magnet steel and corresponding secondary magnet steel constitutes a plurality of magnetic circuits, and each magnetic circuit drives corresponding voice coil loudspeaker voice coil vibration, and strong actuating force is provided, and improves the performance of transducer.
The above only is a better embodiment of the present utility model; protection range of the present utility model does not exceed with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.

Claims (7)

1. transducer, comprise the magnetic circuit unit that is provided with a magnetic conductive board, it is characterized in that: described magnetic conductive board is provided with at least two main magnet steel that are separated from each other, each main magnet steel is equipped with a secondary magnet steel towards the two ends of the long side direction of magnetic conductive board, be provided with the gap between the secondary magnet steel of described main magnet steel and relative set and constitute magnetic gap with magnetic conductive board, the voice coil loudspeaker voice coil that suspends in described each magnetic gap, described voice coil loudspeaker voice coil is connected with a vibrating diaphragm.
2. according to the described transducer of claim 1, it is characterized in that: be provided with first gap between the described adjacent pair magnet steel.
3. according to claim 1 or 2 described transducers, it is characterized in that: described magnetic conductive board is provided with the magnetic base plate, derives from magnetic base plate both sides main magnet steel is folded at least two pairs of middle magnetic side plates, is provided with second gap between described magnetic side plate and the main magnet steel.
4. according to the described transducer of claim 3, it is characterized in that: be provided with third space between described every pair of adjacent magnetic side plate.
5. according to the described transducer of claim 4, it is characterized in that: described adjacent secondary magnet steel is folded in the third space.
6. according to the described transducer of claim 3, it is characterized in that: described secondary magnet steel is conflicted and is connected on the magnetic side plate, and is connected together with the magnetic base plate.
7. according to the described transducer of claim 1, it is characterized in that: described vibrating diaphragm is provided with the ball top consistent with voice coil loudspeaker voice coil quantity, each ball top and corresponding voice coil loudspeaker voice coil connection.
CN201120002573XU 2011-01-06 2011-01-06 Energy converter Expired - Lifetime CN201967111U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120002573XU CN201967111U (en) 2011-01-06 2011-01-06 Energy converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201120002573XU CN201967111U (en) 2011-01-06 2011-01-06 Energy converter
US13/332,363 US8649550B2 (en) 2011-01-06 2011-12-20 Multi-magnet system and speaker using same

Publications (1)

Publication Number Publication Date
CN201967111U true CN201967111U (en) 2011-09-07

Family

ID=44529664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120002573XU Expired - Lifetime CN201967111U (en) 2011-01-06 2011-01-06 Energy converter

Country Status (1)

Country Link
CN (1) CN201967111U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102413405A (en) * 2011-11-16 2012-04-11 瑞声声学科技(深圳)有限公司 Magnetic circuit system and sound generation device using same
CN102413406A (en) * 2011-11-16 2012-04-11 瑞声声学科技(深圳)有限公司 Sound production device
EP2822296A1 (en) * 2013-07-02 2015-01-07 Em-tech. Co., Ltd. Three-magnet type microspeaker
CN104796812A (en) * 2015-04-29 2015-07-22 朝阳聚声泰(信丰)科技有限公司 Three-magnet loudspeaker
CN111836175A (en) * 2020-06-24 2020-10-27 瑞声科技(新加坡)有限公司 Micro loudspeaker

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102413405A (en) * 2011-11-16 2012-04-11 瑞声声学科技(深圳)有限公司 Magnetic circuit system and sound generation device using same
CN102413406A (en) * 2011-11-16 2012-04-11 瑞声声学科技(深圳)有限公司 Sound production device
CN102413406B (en) * 2011-11-16 2014-05-21 瑞声声学科技(深圳)有限公司 Sound production device
CN102413405B (en) * 2011-11-16 2014-06-04 瑞声声学科技(深圳)有限公司 Magnetic circuit system and sound generation device using same
EP2822296A1 (en) * 2013-07-02 2015-01-07 Em-tech. Co., Ltd. Three-magnet type microspeaker
CN104284280A (en) * 2013-07-02 2015-01-14 易音特电子株式会社 Three-magnet type microspeaker
CN104796812A (en) * 2015-04-29 2015-07-22 朝阳聚声泰(信丰)科技有限公司 Three-magnet loudspeaker
CN111836175A (en) * 2020-06-24 2020-10-27 瑞声科技(新加坡)有限公司 Micro loudspeaker
CN111836175B (en) * 2020-06-24 2021-09-28 瑞声科技(新加坡)有限公司 Micro loudspeaker

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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

Effective date of registration: 20170503

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: 20180920

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.

TR01 Transfer of patent right
CX01 Expiry of patent term

Granted publication date: 20110907

CX01 Expiry of patent term