CN201611945U - Electromagnetic loudspeaker - Google Patents
Electromagnetic loudspeaker Download PDFInfo
- Publication number
- CN201611945U CN201611945U CN2009202612134U CN200920261213U CN201611945U CN 201611945 U CN201611945 U CN 201611945U CN 2009202612134 U CN2009202612134 U CN 2009202612134U CN 200920261213 U CN200920261213 U CN 200920261213U CN 201611945 U CN201611945 U CN 201611945U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- ball top
- vibrating diaphragm
- pole piece
- speaker according
- 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
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides an electromagnetic loudspeaker comprising a magnetic circuit system, a vibrating system and a basin frame, wherein the basin frame forms a containing space to contain the magnetic circuit system and the vibrating system. The vibrating system comprises a vibrating diaphragm which comprises a first ball top, a second ball top, a first surface and a second surface opposite to the first surface, wherein the first ball top is arranged on the first surface; and the second ball top is arranged on the second surface. Therefore, when the thickness of the first ball top is directly reduced, i.e., the thickness of the electromagnetic loudspeaker is directly reduced, the additional intensity provided by the second ball top for the vibrating diaphragm can guarantee the better acoustics performance of the vibrating diaphragm.
Description
Technical field
The utility model relates to a kind of electro-acoustic element, relates in particular to a kind of thinner thickness and acoustical behavior magnetic speaker preferably.
Background technology
Nowadays, people are more and more higher to the requirement of portable consumer electronic product, and for example: frivolous portable mobile phone, portable computer, PDA, MP3 etc. more and more are subjected to the high praise in market.People not only require product light, thin, short, little so that carry, and the performance of product is also especially paid close attention to, for example aspect such as tonequality.Therefore, along with portable type electronic product develops towards compact direction, how its tonequality keeps or constantly promotes becoming one of problem that industry pays close attention to.The vibrating diaphragm of magnetic speaker is the core component of magnetic speaker sounding, and its acoustical behavior is required also to improve constantly.
The vibrating diaphragm of magnetic speaker by hot-forming, when requiring lower audio frequency, need softer material to make vibrating diaphragm, and the easy distortion when high frequency of the vibrating diaphragm of softer material influences its high frequency performance a kind of material.In order to overcome this defective, a kind of method is the intensity that increases vibrating diaphragm, adopts the vibrating diaphragm of composite construction.
In correlation technique, a kind of structure of magnetic speaker as shown in Figure 1.Described magnetic speaker 1 comprises a basin frame 11, a magnetic bowl 12, a magnet steel 13, a pole piece 14, a vibrating diaphragm 15, a voice coil loudspeaker voice coil 16 and a protecgulum 17.Described basin frame 11 constitutes a receiving space and accommodates the also described magnetic bowl 12 of fixing.Described magnetic bowl 12 also constitutes another receiving space to accommodate described magnet steel 13 and pole piece 14.Described magnet steel 13 and pole piece 14 are stacked at described magnetic bowl 12 successively, and described magnet steel 13 is located between described magnetic bowl 12 and the described pole piece 14.Form a magnetic gap 18 between described magnetic bowl 12 inner surfaces and described magnet steel 13 sides.
Described vibrating diaphragm 15 is arranged at described pole piece 14 tops, and its edge is fixed on described basin frame 11 edges.Described voice coil loudspeaker voice coil 16 1 ends are suspended in the described magnetic gap 18, and its other end is connected with described vibrating diaphragm 15.
Described vibrating diaphragm 15 comprises that a soft ring 151 and is stacked at the ball top 153 on the described soft ring 151.Described soft ring 151 comprises that one is positioned at the plane 150 at its center, and described ball pushes up 153 lower surfaces and described plane 150 fits tightly.The thickness on described ball top 153 is generally 0.35-0.45mm.
Described protecgulum 17 is arranged at described ball and pushes up 153 tops, and is fixed together with described basin frame 11, is used to protect described magnetic bowl 12, magnet steel 13, pole piece 14, vibrating diaphragm 15 and sound Figure 16.
From the actual requirement of the slimming of magnetic speaker 1, wish that the thickness on ball top 153 is got over Bao Yuehao, in addition, satisfy under the performance demands on described ball top 153, the thin more acoustical behavior to magnetic speaker 1 of thickness on described ball top 153 is also favourable more.Yet the thickness on the ball top 153 of described vibrating diaphragm 15 is difficult to directly do thin again, otherwise can reduce the intensity of vibrating diaphragm 15, and then influences the acoustical behavior of magnetic speaker 1.
The utility model content
Be to solve the problem of its acoustical behavior variation of magnetic speaker thinning, provide a kind of thinning and the good magnetic speaker of its acoustical behavior is real in necessary.
A kind of magnetic speaker, it comprises a magnetic circuit system, a vibrational system and a basin frame.Described basin is configured to that a receiving space is accommodated described magnetic circuit system and vibrational system is accommodated.Described vibrational system comprises a vibrating diaphragm, described vibrating diaphragm comprises one first ball top, a first surface and one and described first surface opposing second surface, described first ball top is arranged on described first surface, and described vibrating diaphragm also comprises one second ball top, and described second ball top is arranged on described second surface.
Preferably, described second ball top be shaped as circle, annular, polygon or square in wherein a kind of.
Preferably, described magnetic circuit system comprises a magnetic bowl, a magnet steel and a pole piece, and described magnet steel and pole piece are housed in described magnetic bowl, and described magnet steel is located between described magnetic bowl and the described pole piece.
Preferably, described pole piece is provided with near second ball top of described vibrating diaphragm.
Preferably, the part on corresponding described second ball of described pole piece top forms a ring-shaped depression structure, and described ring-shaped depression structure is a hollow structure.
Preferably, described magnetic speaker also comprises a magnetic gap, and described magnetic bowl and described magnet steel form described magnetic gap diametrically.
Preferably, described vibrational system also comprises a coil, and described coil is suspended in the described magnetic gap.
Preferably, described coil and described vibrating diaphragm are bonding, vibration and the vibration of drive vibrating diaphragm in magnetic field after the described coil electricity.
Preferably, described magnetic speaker also comprises a protecgulum, and described protecgulum is provided with near described first ball top.
Compared to prior art, the vibrating diaphragm of magnetic speaker of the present utility model comprises first ball top and second ball top, and described first, second ball top is separately positioned on described vibrating diaphragm opposite first and second surface.Therefore, when the thickness that directly reduces described first ball top, when promptly directly reducing the thickness of described magnetic speaker, the additional strength that described second ball top offers described vibrating diaphragm can guarantee the preferable acoustical behavior of described vibrating diaphragm.
Description of drawings
Fig. 1 is a kind of magnetic speaker side sectional structure schematic diagram relevant with the utility model.
Fig. 2 is the perspective exploded view of magnetic speaker of the present utility model.
Fig. 3 is the assembling schematic diagram of magnetic speaker shown in Figure 2.
Fig. 4 is a magnetic speaker shown in Figure 3 generalized section along the IV-IV line.
Embodiment
Be elaborated below in conjunction with the structure of accompanying drawing to the utility model magnetic speaker.
See also Fig. 2, Fig. 2 is the perspective exploded view of magnetic speaker of the present utility model.Described magnetic speaker 2 comprises a basin frame 20, a magnetic circuit system 3, a vibrational system 4 and a protecgulum 5 that sets gradually.Described basin frame 20 constitutes a receiving space in order to accommodate described magnetic circuit system 3 and vibrational system 4.Described protecgulum 5 is covered on the receiving space opening part of described basin frame 20, in order to protect described magnetic circuit system 3 and vibrational system 4.
Described magnetic circuit system 3 comprises a magnetic bowl 31, a magnet steel 33 and a pole piece 35.Described magnetic bowl 31 constitutes another receiving space to accommodate described magnet steel 33 and described pole piece 35.Described magnet steel 33 and described pole piece 35 are stacked in the receiving space of described magnetic bowl 31 successively, and described magnet steel 33 is located between described pole piece 35 and the described magnetic bowl 31.Described magnet steel 33 is a column, and the outside dimension of described magnet steel 33 is less than the receiving space size of described magnetic bowl 31.
Described pole piece 35 comprises one with the axisymmetric ring-shaped depression structure 351 in described pole piece 35 centers.Described ring-shaped depression structure 351 is a hollow structure.
Described vibrational system 4 is arranged between described magnetic circuit system 3 and the described protecgulum 5, and it comprises a vibrating diaphragm 41, a voice coil loudspeaker voice coil 43,45 and 1 second ball top, one first ball top 47.
Described vibrating diaphragm 41 is provided with near described pole pieces 35, and it comprises that a center is the ring 411, a first surface 413 and one and described first surface 413 opposing second surface 415 on plane.Described ring 411 is used for supporting and keeping the compliance vibration of described vibrating diaphragm 41.
45 and second ball top, described first ball top 47 is flat structure, and its shape is square.Described first ball top 45 is stacked at described first surface 413, and described second ball top 47 is stacked at described second surface 415.And, the ring-shaped depression structure 351 of the described relatively pole piece 35 in position on described second ball top 47.In the present embodiment, the thickness on described first ball top 45 is approximately 0.2-0.25mm.
Described voice coil loudspeaker voice coil 43 comprises two lead-in wire contact jaws 431, and it is used for receiving the foreign current signal.Described voice coil loudspeaker voice coil 43 integral body are a loop configuration.
Please consult Fig. 3 and Fig. 4 more simultaneously, Fig. 3 is the assembling schematic diagram of magnetic speaker 2 shown in Figure 2, and Fig. 4 is magnetic speaker 2 a shown in Figure 3 generalized section along the IV-IV line.
When assembling, at first a wherein surface of described magnet steel 33 and the inside bottom surface of described magnetic bowl 31 are fitted tightly together, again its another surface is closely linked with pole piece 35 1 surfaces.Because the outside dimension of magnet steel 33 less than the outside dimension of described magnetic bowl 31, so there is a gap between its sidewall and described magnetic bowl 31 madial walls, forms magnetic gap 37, as shown in Figure 4.Then described magnetic circuit system 3 is fixed in the receiving space of described basin frame 20, it comprises described magnetic bowl 31, magnet steel 33 and pole piece 35.
Secondly, described first ball top 45 is bonded in the first surface 413 of described vibrating diaphragm 41, described second ball top 47 is bonded in the second surface 415 of described vibrating diaphragm 41.Described voice coil loudspeaker voice coil 43 1 ends and the voice coil loudspeaker voice coil position that is positioned at described second surface 415 (indicating the described relatively magnetic gap 37 in described voice coil loudspeaker voice coil position) are not adhesively fixed, and its other end is suspended in the described magnetic gap 37.Described vibrational system 4 is arranged at described magnetic circuit system 3 tops, and vibrating diaphragm 41 edges of described vibrational system 4 and described basin frame 20 edges bond together.Described vibrational system 4 comprises described vibrating diaphragm 41, voice coil loudspeaker voice coil 43,45 and second ball top, first ball top 47.
At last, protecgulum 5 and described basin frame 20 edges are fixed, in order to protect inner magnetic circuit system 3 and vibrational system 4.
When two lead-in wire contact jaws 431 of described voice coil loudspeaker voice coil 43 received the external impressed current signal, described voice coil loudspeaker voice coil 43 is subjected to Lorentz force in the magnetic field of magnetic gap 37 effect can produce displacement.Along with the current signal that described voice coil loudspeaker voice coil 43 receives is constantly changed direction, make also correspondent transform direction (left hand rule) of Lorentz force that described coil 43 is subjected to.As a result, the reciprocating motion under the effect of above-mentioned Lorentz force of described coil 43 is sounded thereby drive vibrating diaphragm 41 vibrations.In the present embodiment, described ring-shaped depression structure 351 provides the oscillation space on described second ball top 47 when described voice coil loudspeaker voice coil 43 vibrates.
The acoustical behavior of described magnetic speaker 2 and vibrating diaphragm 41 strength relationships are close, and especially when high frequency, high-intensity vibrating diaphragm 41 can guarantee that described magnetic speaker 2 is undistorted at high frequency.The vibrating diaphragm 41 of the magnetic speaker 2 of described execution mode comprises 45 and second ball top, first ball top 47, and described first, second ball top 45,47 is separately positioned on described vibrating diaphragm 41 opposite first 413 and second surface 415.Therefore, when the thickness that directly reduces described first ball top 45, when promptly directly reducing the thickness of described magnetic speaker 2, described second ball top 47 additional strengths that offer described vibrating diaphragm 41 can guarantee the preferable acoustical behavior of described vibrating diaphragm 41.
The thickness on first ball described in present embodiment top 45 is 0.2-0.25mm, and therefore the thickness of described magnetic speaker 2 can directly reduce and do not weaken its acoustical behavior.
In described first execution mode, described first ball top 45 is square with described second ball top 47.Yet understandable, described first ball top 45 is pushed up 47 shapes with described second ball and can be other shapes, for example circle, annular and polygon etc.
In addition, described pole piece 35 middle parts comprise ring-shaped depression structure 351.Yet understandable, described pole piece 35 also can be determined according to actual needs for a complete slab construction.
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 (10)
1. magnetic speaker, it comprises a magnetic circuit system, a vibrational system and a basin frame, described basin is configured to a receiving space to accommodate described magnetic circuit system and vibrational system, described vibrational system comprises a vibrating diaphragm, described vibrating diaphragm comprises one first ball top, a first surface and one and described first surface opposing second surface, described first ball top is arranged on described first surface, it is characterized in that: described vibrating diaphragm also comprises one second ball top, and described second ball top is arranged on described second surface.
2. magnetic speaker according to claim 1 is characterized in that: described second ball top be shaped as circle, annular, polygon or square in any one.
3. magnetic speaker according to claim 1 is characterized in that: described magnetic circuit system comprises a magnetic bowl, a magnet steel and a pole piece, and described magnet steel and pole piece are housed in described magnetic bowl, and described magnet steel is located between described magnetic bowl and the described pole piece.
4. magnetic speaker according to claim 3 is characterized in that: described pole piece is provided with near second ball top of described vibrating diaphragm.
5. magnetic speaker according to claim 4 is characterized in that: the part on corresponding described second ball of described pole piece top is provided with a ring-shaped depression structure, and described ring-shaped depression structure is a hollow structure.
6. magnetic speaker according to claim 1 is characterized in that: described magnetic speaker also comprises a magnetic gap, and described magnetic bowl and described magnet steel form described magnetic gap diametrically.
7. magnetic speaker according to claim 6 is characterized in that: described vibrational system also comprises a coil, and described coil one end is suspended in the described magnetic gap.
8. magnetic speaker according to claim 7 is characterized in that: the other end of described coil and described vibrating diaphragm are bonding.
9. magnetic speaker according to claim 1 is characterized in that: described magnetic speaker also comprises a protecgulum, and described protecgulum is provided with near described first ball top.
10. magnetic speaker according to claim 1 is characterized in that: described magnetic bowl is the U type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202612134U CN201611945U (en) | 2009-12-07 | 2009-12-07 | Electromagnetic loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202612134U CN201611945U (en) | 2009-12-07 | 2009-12-07 | Electromagnetic loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611945U true CN201611945U (en) | 2010-10-20 |
Family
ID=42962581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202612134U Expired - Lifetime CN201611945U (en) | 2009-12-07 | 2009-12-07 | Electromagnetic loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611945U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040925A (en) * | 2018-11-02 | 2018-12-18 | 歌尔股份有限公司 | Top dome, loudspeaker and earphone |
| CN109819382A (en) * | 2018-12-30 | 2019-05-28 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN109889964A (en) * | 2018-12-30 | 2019-06-14 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN111385725A (en) * | 2019-12-24 | 2020-07-07 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| WO2020140180A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022007173A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2024031826A1 (en) * | 2022-08-12 | 2024-02-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
-
2009
- 2009-12-07 CN CN2009202612134U patent/CN201611945U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040925A (en) * | 2018-11-02 | 2018-12-18 | 歌尔股份有限公司 | Top dome, loudspeaker and earphone |
| CN109819382A (en) * | 2018-12-30 | 2019-05-28 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN109889964A (en) * | 2018-12-30 | 2019-06-14 | 瑞声科技(新加坡)有限公司 | Microphone device |
| WO2020140180A1 (en) * | 2018-12-30 | 2020-07-09 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN109889964B (en) * | 2018-12-30 | 2021-02-26 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111385725A (en) * | 2019-12-24 | 2020-07-07 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| WO2022007173A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2024031826A1 (en) * | 2022-08-12 | 2024-02-15 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200413199A1 (en) | Sounding device | |
| CN201611945U (en) | Electromagnetic loudspeaker | |
| CN201839428U (en) | Loudspeaker | |
| CN111641906B (en) | Sound production device | |
| US20110255732A1 (en) | Multifunctional micro speaker | |
| US10341779B2 (en) | Miniature sounding device | |
| CN201854416U (en) | Loudspeaker | |
| CN201742543U (en) | Diaphragm structure and electromagnetic loudspeaker thereby | |
| JP2023109705A (en) | Multi-functional sounding device | |
| US11765512B2 (en) | Acoustic device | |
| US10827279B2 (en) | Multi-function speaker | |
| CN205754831U (en) | Vibrational system and apply the speaker of described vibrational system | |
| US10869135B2 (en) | Speaker | |
| CN205491122U (en) | Vibration system and applied said vibration system's speaker | |
| US10708692B2 (en) | Vibration diaphragm | |
| CN112584284B (en) | Micro loudspeaker | |
| US20180367908A1 (en) | Vibration Diaphragm | |
| CN214101770U (en) | Sound production device | |
| US10764685B2 (en) | Speaker | |
| CN110572751B (en) | Speaker assembly, assembling method of speaker assembly, and sound generating apparatus | |
| CN205491123U (en) | Loudspeaker | |
| CN216057482U (en) | Miniature loudspeaker | |
| CN216057472U (en) | Basin stand, miniature loudspeaker and electronic terminal equipment | |
| CN216721567U (en) | Double-sided sounding loudspeaker monomer | |
| CN220965131U (en) | Miniature loudspeaker |
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: 20170605 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd. Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18 Co-patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd. Patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101020 |
|
| CX01 | Expiry of patent term |