CN201854415U - Electromagnetic loudspeaker with double voice coils - Google Patents
Electromagnetic loudspeaker with double voice coils Download PDFInfo
- Publication number
- CN201854415U CN201854415U CN2010205918977U CN201020591897U CN201854415U CN 201854415 U CN201854415 U CN 201854415U CN 2010205918977 U CN2010205918977 U CN 2010205918977U CN 201020591897 U CN201020591897 U CN 201020591897U CN 201854415 U CN201854415 U CN 201854415U
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- magnet
- voice coil
- double
- annulus
- tone circle
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Abstract
The utility model provides an electromagnetic loudspeaker with double voice coils. The electromagnetic loudspeaker comprises a first magnet, a second magnet, a first voice coil and a second voice coil. The first voice coil surrounds the first magnet; the second magnet surrounds the first magnet and the first voice coil; and the second voice coil surrounds the second magnet. The electromagnetic loudspeaker with the double voice coils has the advantages of higher driving force and higher utilization rate of the magnetic field and is conductive to realizing the lightening and thinning of products.
Description
Technical field
The utility model relates to a kind of magnetic speaker, relates in particular to a kind of double-tone circle magnetic speaker.
Background technology
Be miniaturization, the multifunction development adapt to various stereo sets and information communication device, in this kind equipment employed loud speaker in requisition for being tending towards miniaturization more, and compact more with cooperating of described other elements of loud speaker periphery.Particularly along with the lightening growth requirement of mobile phone, also more and more higher to the requirement of employed loud speaker wherein.
Seeing also Fig. 1, is a kind of side cross-sectional schematic of the magnetic speaker relevant with the utility model, and described magnetic speaker 1 comprises a pole piece 13, a magnet 14, a voice coil loudspeaker voice coil 15 and a magnetic bowl 16.Described magnet 14 is housed in the described magnetic bowl 16, and described pole piece 13 is arranged on the surface of described magnet 14, and described voice coil loudspeaker voice coil 15 is around described magnet 14.
The problem that described magnetic speaker 1 exists is: the magnetic field utilance of described magnet 14 is lower, causes the actuating force that forms less, and especially when the area of described magnet 14 greatly the time, the problem that the utilance of its center regional magnetic field is lower is more outstanding.In order to improve the actuating force of magnetic speaker, can adopt more large-scale magnet and voice coil loudspeaker voice coil, but this measure can cause again the volume of product obviously to increase, and can not satisfy the lightening demand of product.
The utility model content
Magnetic field utilance at existing magnetic speaker is lower, can not satisfy the lightening problem of product, the utility model provide a kind of magnetic field utilance higher, can satisfy the lightening double-tone circle magnetic speaker of product.
A kind of double-tone circle magnetic speaker, it comprises first magnet, second magnet, first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil.Described first voice coil loudspeaker voice coil is around described first magnet, and described second magnet ring is around described first magnet and described first voice coil loudspeaker voice coil, and described second voice coil loudspeaker voice coil is around described second magnet.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described double-tone circle magnetic speaker further comprises the 3rd magnet, and described the 3rd magnet ring is around described second magnet and described second voice coil loudspeaker voice coil.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described double-tone circle magnetic speaker further comprises first pole piece, and described first pole piece is arranged on the surface of described first magnet, and by described first voice coil loudspeaker voice coil around.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described double-tone circle magnetic speaker further comprises second pole piece, and described second pole piece is arranged on the surface of described second magnet, and it is around described first voice coil loudspeaker voice coil.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described second voice coil loudspeaker voice coil is around described second pole piece.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described double-tone circle magnetic speaker further comprises the 3rd pole piece, and described the 3rd pole piece is arranged on the surface of described the 3rd magnet, and it is around described second voice coil loudspeaker voice coil.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described double-tone circle magnetic speaker further comprises a magnetic bowl, and described magnetic bowl is accommodated described first magnet, described first voice coil loudspeaker voice coil, described second magnet, described second voice coil loudspeaker voice coil and described the 3rd magnet.
Further improvement as above-mentioned double-tone circle magnetic speaker, described double-tone circle magnetic speaker further comprises a magnetic bowl, described magnetic bowl comprises first annulus, second annulus and the 3rd annulus, comprise first annular groove between described first annulus and described second annulus, comprise second annular groove between described second annulus and described the 3rd annulus.
As the further improvement of above-mentioned double-tone circle magnetic speaker, described first magnet is arranged on the described first annulus surface, and described second magnet is arranged on the described second annulus surface, and described the 3rd magnet is arranged on described the 3rd annulus surface.
As the further improvement of above-mentioned double-tone circle magnetic speaker, the magnetizing direction of described first magnet is identical with the magnetizing direction of described the 3rd magnet, and opposite with the magnetizing direction of described second magnet.
Three magnet structures that the double-tone coil structures that described double-tone circle magnetic speaker of the present utility model adopts described first voice coil loudspeaker voice coil and described second voice coil loudspeaker voice coil to form cooperates described first magnet, described second magnet and described the 3rd magnet to form, can effectively improve the magnetic field utilance, the magnetic field utilance when especially the magnetic field area is big.And adopt described three magnets for around structural design, and do not increase the thickness of described double-tone circle magnetic speaker, in that to guarantee under the constant situation of systematic function magnetic circuit to be accomplished thinner, help described double-tone circle magnetic speaker to lightening development.
In sum, double-tone circle magnetic speaker of the present utility model has that actuating force is higher, the magnetic field utilance is higher and helps advantages such as product is lightening.
Description of drawings
Fig. 1 is a kind of side cross-sectional schematic of the double-tone circle magnetic speaker relevant with the utility model.
Fig. 2 is the three-dimensional cross-sectional schematic of the utility model double-tone circle magnetic speaker one better embodiment.
Fig. 3 is the side cross-sectional schematic of double-tone circle magnetic speaker shown in Figure 2.
Embodiment
Below in conjunction with accompanying drawing double-tone circle magnetic speaker structure of the present utility model is described.
See also Fig. 2 and Fig. 3, wherein, Fig. 2 is the three-dimensional cross-sectional schematic of the utility model double-tone circle magnetic speaker one better embodiment, and Fig. 3 is the side cross-sectional schematic of double-tone circle magnetic speaker shown in Figure 2.Described double-tone circle magnetic speaker 2 comprises first pole piece 21, second pole piece 22, the 3rd pole piece 23, first magnet 31, second magnet 32, the 3rd magnet 33, first voice coil loudspeaker voice coil 41, second voice coil loudspeaker voice coil 42 and magnetic bowl 50.
Described first magnet 31, described second magnet 32 and described the 3rd magnet 33 are permanent magnets, it is got by the higher metallic of multiple hardness usually, as iron, aluminium, nickel and cobalt etc., and perhaps copper, niobium and tantalum etc., according to the difference of composition, its magnetic property is also to should be differentiated.
Described first voice coil loudspeaker voice coil 41 and described second voice coil loudspeaker voice coil 42 are that it is normally formed by the copper conductor coiling by the multiturn voice coil loudspeaker voice coil structure of plain conductor coiling.
Described magnetic bowl 50 is roughly the cake structure, comprises first groove 51 and second groove 52.Described first groove 51 and described second groove 52 all ringwise, its upper surface by described magnetic bowl 50 extends vertically downward, but does not penetrate described magnetic bowl 50.Described second groove 52 is around described first groove 51, thereby the upper surface of described magnetic bowl 50 can be divided into first annulus (not indicating), second annulus (not indicating) and the 3rd annulus (not indicating), described first groove 51 is around described first annulus, described second groove 52 is around described second annulus, and described the 3rd annulus is around described second groove 52.
Described first magnet 31 is arranged at first annulus of described magnetic bowl 50, and described first pole piece 21 is stacked at the upper surface of described first magnet 31, that is, described first magnet 31 is between described first pole piece 21 and described first annulus.Described first voice coil loudspeaker voice coil 41 is around described first pole piece 21 and described first magnet 31, thereby forms first magnetic circuit (indicating) of described double-tone circle magnetic speaker 2, and wherein said first groove 51 is the magnetic gap of described first magnetic circuit.
Described second magnet 32 is arranged at second annulus of described magnetic bowl 50, and described second pole piece 22 is stacked at the upper surface of described second magnet 32, that is, described second magnet 32 is between described second pole piece 22 and described second annulus.Described second pole piece 22 is around described first pole piece 21 and described first voice coil loudspeaker voice coil 41.Described second voice coil loudspeaker voice coil 42 is around described second pole piece 22 and described second magnet 32, thereby forms second magnetic circuit (indicating) of described double-tone circle magnetic speaker 2, and wherein said second groove 52 is the magnetic gap of described second magnetic circuit.
Described the 3rd magnet 33 is arranged at the 3rd annulus of described magnetic bowl 50, and described the 3rd pole piece 23 is stacked at the upper surface of described the 3rd magnet 33, that is, described the 3rd magnet 33 is between described the 3rd pole piece 23 and described the 3rd annulus.Described the 3rd pole piece 23 is around described second pole piece 22 and described second voice coil loudspeaker voice coil 42.That is to say, described first pole piece 21, described second pole piece 22 and described the 3rd pole piece 23 are pressed described order from inside to outside around setting, described first magnet 31, described second magnet 32 and described the 3rd magnet 33 are pressed described order from inside to outside around setting, described first voice coil loudspeaker voice coil 41 is between described first magnet 31 and described second magnet 32, and described second voice coil loudspeaker voice coil 42 is between described second magnet 32 and described the 3rd magnet 33.
Further, the magnetizing direction of described first magnet 31 is identical with the magnetizing direction of described the 3rd magnet 33, and opposite with the magnetizing direction of described second magnet 32.For example, described first magnet 31 and described the 3rd magnet 33 are upwards and magnetize, and described second magnet 32 then magnetizes downwards, and again for example, described first magnet 31 and described the 3rd magnet 33 are downwards and magnetize, and described second magnet 32 then upwards magnetizes.Above magnetizing direction is convenient the illustrating of present embodiment of describing, and not representing only has above-mentioned magnetizing direction, according to actual needs, also can magnetize left or magnetizing direction to the right, or the magnetizing of other direction.
Adopt the single-tone coil structures at general double-tone circle magnetic speaker, cause the magnetic field utilance lower easily, especially the not high problem of magnet center district magnet utilance that area is big, three magnet structures that the double-tone coil structures that described double-tone circle magnetic speaker 2 of the present utility model adopts described first voice coil loudspeaker voice coil 41 and described second voice coil loudspeaker voice coil 42 to form cooperates described first magnet 31, described second magnet 32 and described the 3rd magnet 33 to form, can effectively improve the magnetic field utilance, increase actuating force.Because the formed multipath magnetic circuit of described three magnet structures can effectively increase magnetic field intensity, improve the magnetic field utilance, and adopt around structural design, do not increase the thickness of described double-tone circle magnetic speaker 2, in that to guarantee under the constant situation of systematic function magnetic circuit to be accomplished thinner, help described double-tone circle magnetic speaker 2 to lightening development.
In sum, double-tone circle magnetic speaker 2 of the present utility model has that actuating force is higher, the magnetic field utilance is higher and helps advantages such as product is lightening.
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. double-tone circle magnetic speaker, it comprises first magnet and first voice coil loudspeaker voice coil, described first voice coil loudspeaker voice coil is around described first magnet, it is characterized in that: further comprise second magnet and second voice coil loudspeaker voice coil, described second magnet ring is around described first magnet and described first voice coil loudspeaker voice coil, and described second voice coil loudspeaker voice coil is around described second magnet.
2. double-tone circle magnetic speaker according to claim 1 is characterized in that: further comprise the 3rd magnet, described the 3rd magnet ring is around described second magnet and described second voice coil loudspeaker voice coil.
3. double-tone circle magnetic speaker according to claim 2 is characterized in that: further comprise first pole piece, described first pole piece is arranged on the surface of described first magnet, and by described first voice coil loudspeaker voice coil around.
4. double-tone circle magnetic speaker according to claim 3 is characterized in that: further comprise second pole piece, described second pole piece is arranged on the surface of described second magnet, and it is around described first voice coil loudspeaker voice coil.
5. double-tone circle magnetic speaker according to claim 4 is characterized in that: described second voice coil loudspeaker voice coil is around described second pole piece.
6. double-tone circle magnetic speaker according to claim 4 is characterized in that: further comprise the 3rd pole piece, described the 3rd pole piece is arranged on the surface of described the 3rd magnet, and it is around described second voice coil loudspeaker voice coil.
7. double-tone circle magnetic speaker according to claim 2, it is characterized in that: further comprise a magnetic bowl, described magnetic bowl comprises first annulus, second annulus and the 3rd annulus, comprise first annular groove between described first annulus and described second annulus, comprise second annular groove between described second annulus and described the 3rd annulus.
8. double-tone circle magnetic speaker according to claim 7, it is characterized in that: described first magnet is arranged on the described first annulus surface, described second magnet is arranged on the described second annulus surface, and described the 3rd magnet is arranged on described the 3rd annulus surface.
9. double-tone circle magnetic speaker according to claim 2 is characterized in that: the magnetizing direction of described first magnet is identical with the magnetizing direction of described the 3rd magnet.
10. double-tone circle magnetic speaker according to claim 9 is characterized in that: the magnetizing direction of the magnetizing direction of described first magnet and described second magnet is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205918977U CN201854415U (en) | 2009-12-21 | 2010-11-04 | Electromagnetic loudspeaker with double voice coils |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920261784 | 2009-12-21 | ||
| CN200920261784.8 | 2009-12-21 | ||
| CN2010205918977U CN201854415U (en) | 2009-12-21 | 2010-11-04 | Electromagnetic loudspeaker with double voice coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201854415U true CN201854415U (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205918977U Expired - Lifetime CN201854415U (en) | 2009-12-21 | 2010-11-04 | Electromagnetic loudspeaker with double voice coils |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201854415U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103945311A (en) * | 2014-04-24 | 2014-07-23 | 中山市天键电声有限公司 | Novel double-moving-coil type loudspeaker |
| CN104994457A (en) * | 2015-07-08 | 2015-10-21 | 汉得利（常州）电子股份有限公司 | Medium-distance bone conduction driver |
| DE202014010569U1 (en) | 2013-04-16 | 2016-01-07 | Wenjin Sha | Voice coil speaker with double voice coil |
| CN105578361A (en) * | 2016-03-01 | 2016-05-11 | 广东欧珀移动通信有限公司 | Magnetic circuit structure for loudspeaker, and loudspeaker |
| CN105812997A (en) * | 2016-03-14 | 2016-07-27 | 青岛海信电器股份有限公司 | Loudspeaker |
| CN109429153A (en) * | 2017-08-25 | 2019-03-05 | 惠州超声音响有限公司 | Coaxial double voice coil driving assembly |
| CN112585996A (en) * | 2018-04-11 | 2021-03-30 | 达利有限责任公司 | Dual voice coil loudspeaker transducer unit |
-
2010
- 2010-11-04 CN CN2010205918977U patent/CN201854415U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202014010569U1 (en) | 2013-04-16 | 2016-01-07 | Wenjin Sha | Voice coil speaker with double voice coil |
| CN103945311A (en) * | 2014-04-24 | 2014-07-23 | 中山市天键电声有限公司 | Novel double-moving-coil type loudspeaker |
| CN104994457A (en) * | 2015-07-08 | 2015-10-21 | 汉得利（常州）电子股份有限公司 | Medium-distance bone conduction driver |
| CN105578361A (en) * | 2016-03-01 | 2016-05-11 | 广东欧珀移动通信有限公司 | Magnetic circuit structure for loudspeaker, and loudspeaker |
| CN105812997A (en) * | 2016-03-14 | 2016-07-27 | 青岛海信电器股份有限公司 | Loudspeaker |
| CN105812997B (en) * | 2016-03-14 | 2019-08-02 | 青岛海信电器股份有限公司 | A kind of loudspeaker |
| CN109429153A (en) * | 2017-08-25 | 2019-03-05 | 惠州超声音响有限公司 | Coaxial double voice coil driving assembly |
| CN109429153B (en) * | 2017-08-25 | 2023-08-18 | 惠州迪芬尼声学科技股份有限公司 | Coaxial double-voice coil driving assembly |
| CN112585996A (en) * | 2018-04-11 | 2021-03-30 | 达利有限责任公司 | Dual voice coil loudspeaker transducer unit |
| US11290823B2 (en) | 2018-04-11 | 2022-03-29 | Dali A/S | Double voice coil loudspeaker transducer unit |
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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: 20170406 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Patentee after: AAC Technologies (Singapore) Co., Ltd. Patentee after: AAC Acoustic Technologies (Changzhou) Co., Ltd. Address before: 518057 Nanshan District province high tech Industrial Park, Shenzhen, North West New Road, No. 18 Patentee before: AAC Acoustic Technologies (Shenzhen) Co., Ltd. Patentee before: AAC Acoustic Technologies (Changzhou) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
|
| CX01 | Expiry of patent term |