CN202841513U - Loudspeaker unit - Google Patents
Loudspeaker unit Download PDFInfo
- Publication number
- CN202841513U CN202841513U CN 201220539060 CN201220539060U CN202841513U CN 202841513 U CN202841513 U CN 202841513U CN 201220539060 CN201220539060 CN 201220539060 CN 201220539060 U CN201220539060 U CN 201220539060U CN 202841513 U CN202841513 U CN 202841513U
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- CN
- China
- Prior art keywords
- loudspeaker monomer
- external magnet
- loudspeaker
- extension
- voice coil
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Abstract
The utility model discloses a loudspeaker unit comprising a shell and a front cover integrally fastened with the shell. A vibrating system and a magnetic circuit system are held in a cavity enclosed by the shell and the front cover. The magnetic circuit system comprises an outer magnet and an inner magnet disposed inside the outer magnet. Further, the outer magnet is provided with extending portions extending outwards, and the thickness of each extending portion is equal to that of the body of the outer magnet. The loudspeaker unit solves the technical problems that an existing loudspeaker unit is low in magnetic flux and low in sounding efficiency and acoustic performance is difficult to improve in the prior art, and has the advantages of high sounding efficiency, good acoustic performance, constant size and the like.
Description
Technical field
The utility model relates to the electro-acoustic product technical field, particularly a kind of loudspeaker monomer.
Background technology
Along with the fast development of portable type electronic product, be widely used especially as the loudspeaker monomer of the important acoustical device in the portable type electronic product.Loudspeaker monomer generally includes vibrational system and the magnetic circuit system that is contained in the shell, and vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that sets gradually; Magnetic circuit system comprises external magnet and internal magnet, and the large I of magnet affects the size of magnetic flux, and then directly affects the acoustical behavior of loudspeaker monomer.The operation principle of loudspeaker monomer is to pass into alternating current to voice coil loudspeaker voice coil, moves reciprocatingly with respect to magnetic circuit system under the magnetic fields that magnetic circuit system produces, and voice coil loudspeaker voice coil drives vibrating diaphragm and vibrates together, and vibrating diaphragm is instigated air and sent corresponding sound.
The structure of the external magnet of loudspeaker monomer is regular square ring structure in the prior art, the external magnet of this kind structure is less, the magnetic saturation zone of external magnet is just less, cause magnetic flux little, the active force that voice coil loudspeaker voice coil is subject in magnetic field is just little, the phonation efficiency of loudspeaker monomer reduces, thus serious restriction the lifting of loudspeaker monomer acoustical behavior.
The utility model content
Technical problem to be solved in the utility model provides a kind of loudspeaker monomer, and this loudspeaker monomer magnetic flux is large, and the active force that voice coil loudspeaker voice coil is subject in magnetic field is large, and phonation efficiency is high, and acoustical behavior is high.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of loudspeaker monomer, comprise shell and fasten the protecgulum that is integrated with described shell, contain vibrational system and magnetic circuit system in the cavity that described shell and described protecgulum surround, described magnetic circuit system comprises external magnet and is arranged at the internal magnet of described external magnet inside, it is characterized in that: described external magnet is provided with outward extending extension, the consistency of thickness of the thickness of described extension and described external magnet body.
As a kind of improvement, described external magnet is the square ring body.
As further improvement, be equipped with the extension that extends laterally on four sidewalls of described annular body.
As further improvement, two sidewalls that described ring body is relative are provided with the extension that extends laterally.
As further improvement, the middle part of each described extension is equipped with a groove.
As further improvement, the angle between the two side of described groove and the bottom of described groove is the right angle.
As further improvement, the angle between the two side of described groove and the bottom of described groove is the obtuse angle.
As further improvement, each described extending part is in the middle part of described sidewall.
The beneficial effects of the utility model are: loudspeaker monomer described in the utility model, comprise shell and fasten the protecgulum that is integrated with described shell, contain vibrational system and magnetic circuit system in the cavity that described shell and described protecgulum surround, described magnetic circuit system comprises external magnet and is arranged at the internal magnet of described external magnet inside, and: described external magnet is provided with outward extending extension, the consistency of thickness of the thickness of described extension and described external magnet body.Owing to being provided with extension at external magnet, external magnet size and magnetic force performance have been increased, namely increased the magnetic saturation zone of external magnet, increased magnetic flux, and then increased the suffered magnetic fields power of voice coil loudspeaker voice coil, improved the phonation efficiency of loudspeaker monomer, so that the whole acoustical behavior of loudspeaker monomer is improved; And can be optimized design according to the body construction of loudspeaker unit, not increase the size of loudspeaker monomer.
In sum, it is little that the utility model loudspeaker monomer has solved in the prior art loudspeaker monomer magnetic flux, and phonation efficiency is low, the technical problem that acoustical behavior is difficult to promote.The utility model loudspeaker monomer has that phonation efficiency is high, and acoustical behavior is good, does not increase the advantages such as loudspeaker monomer size.
Description of drawings
Fig. 1 is the stereo decomposing structural representation of the utility model loudspeaker monomer embodiment one;
Fig. 2 is the cross-sectional view of the utility model loudspeaker monomer embodiment one;
Fig. 3 is the structural representation of the external magnet of the utility model loudspeaker monomer embodiment one;
Fig. 4 is the structural representation of the external magnet of the utility model loudspeaker monomer embodiment two;
Fig. 5 is the structural representation of the external magnet of the utility model loudspeaker monomer embodiment three;
Fig. 6 is the structural representation of the external magnet of the utility model loudspeaker monomer embodiment four;
Among the figure: 11, protecgulum, 12, shell, 121, phonate hole, 21, outer vibrating diaphragm, 22, interior vibrating diaphragm, 23, voice coil loudspeaker voice coil, 24, lead-in wire, 3, centring disk, 31, center drilling, 411, outer washer, 4111, dodge groove, 412, interior washer, 421, external magnet, 4211, annular body, 4212a; 4212b; 4212c, extension, 4213, groove, 422, internal magnet, 43, magnetic conductive board, 5, electric connecting part.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.
Embodiment one:
Such as Fig. 1, shown in Fig. 2 and Fig. 3 are common, a kind of loudspeaker monomer, comprise shell 12 and fasten the protecgulum 11 that is integrated with shell 12, the sidewall of shell 12 is provided with phonate hole 121, contain vibrational system and magnetic circuit system in the cavity that shell 12 and protecgulum 11 surround, vibrational system comprises the vibrating diaphragm that is successively set between protecgulum 11 and the magnetic circuit system, centring disk 3 and voice coil loudspeaker voice coil 23, magnetic circuit system comprises external magnet 421 and is arranged at the internal magnet 422 of external magnet 421 inside, external magnet 421 comprises the square ring body 4211 of chamfering, respectively be provided with an extension 4212a who extends laterally on four sidewalls of annular body 4211, the consistency of thickness of the thickness of extension 4212a and annular body 4211.Owing to being equipped with outward extending extension 4212a on four sidewalls of annular body 4211, extension 4212 has increased external magnet 421, namely increased the magnetic saturation zone of external magnet 421, increased magnetic flux, and then increased the suffered magnetic fields power of voice coil loudspeaker voice coil 23, improved the phonation efficiency of loudspeaker monomer, so that the whole acoustical behavior of loudspeaker monomer is improved.
As shown in Figure 3, the middle part of each extension 4212a is equipped with a groove 4213, and groove 4213 is aobvious along the penetrating groove in the thickness direction two ends of described external magnet 421, and the angle between the bottom of the two side of groove 4213 and groove 4213 is the right angle.Groove 4213 is in the non-magnetic saturation zone of external magnet 421, therefore the magnet at this position is little to the acoustical behavior effect that improves loudspeaker monomer, goes to expect to form the inner space that can save loudspeaker monomer behind the groove 4213.
Shown in Fig. 1 and Fig. 2 are common, magnetic circuit system comprises outer washer 411, the interior washer 412 that sets gradually, external magnet 421, internal magnet 422 and magnetic conductive board 43, interior washer 412 is arranged at the inboard of outer washer 411, outer washer 411 side's of being ring-types, four limits of outer washer 411 are equipped be used to what dodge phonate hole 121 and dodge groove 4111; Internal magnet 422 is arranged at the inboard of external magnet 421, and interior washer 412 and outer washer 411 be near the vibrational system settings, and and vibrational system between be separated with certain space, magnetic conductive board 43 is incorporated on the shell 12.Internal magnet 422 and interior washer 412 form internal magnetic circuit, external magnet 421 and outer washer 411 form external magnetic circuit, be formed with magnetic gap between internal magnetic circuit and the external magnetic circuit, one end of voice coil loudspeaker voice coil 23 inserts in the magnetic gap, and move reciprocatingly along the bearing of trend of magnetic gap, thereby drive the vibrating diaphragm vibration, send corresponding sound.
Shown in Fig. 1 and Fig. 2 were common, vibrating diaphragm comprised the outer vibrating diaphragm 21 of the annular of being made by flexible material and is arranged at the interior vibrating diaphragm 22 of outer vibrating diaphragm 21 inside, and the material of interior vibrating diaphragm 22 is rigid material; Centring disk 3 is the resilient sheet-like member, and centring disk 3 is provided with for the circuit structure that connects voice coil loudspeaker voice coil 23 and external circuit, centring disk 3 is electrically connected with external circuit by electric connecting part 5, can adopt flexible printed circuit board to be used as centring disk 3, the middle part of centring disk 3 is provided with center drilling 31, and voice coil loudspeaker voice coil 23 is provided with a lead-in wire end of 24 and is arranged in the center drilling 31 and with interior vibrating diaphragm 22 and supports mutually.Because interior vibrating diaphragm 22 adopts rigid material, can play good supporting role to voice coil loudspeaker voice coil 23, damages vibrating diaphragm in the time of can preventing voice coil loudspeaker voice coil 23 vibration, guarantees the acoustical behavior of loudspeaker monomer; Because centring disk 3 middle parts are provided with center drilling 31, voice coil loudspeaker voice coil 23 is located in the center drilling 31, lead-in wire 24 on the voice coil loudspeaker voice coil 23 can pass and be welded on the side that centring disk 3 is provided with vibrating diaphragm from center drilling 31, when vibrating, vibrational system just the phenomenon that solder joint and magnetic circuit system bump can not occur, thereby can not produce noise, improve the acoustic efficiency of loudspeaker monomer; Because voice coil loudspeaker voice coil 23 is located in the center drilling 31, can be so that voice coil loudspeaker voice coil 23 have prolonged the length that equates with the thickness of centring disk 3, thereby increased the active force in the suffered magnetic field of voice coil loudspeaker voice coil 23, increased amplitude, improved phonation efficiency, and voice coil loudspeaker voice coil 23 can not bump with magnetic circuit system when vibration, has improved the acoustical behavior of loudspeaker monomer, has prolonged simultaneously the useful life of loudspeaker monomer.
Embodiment two:
As shown in Figure 4, the main distinction of present embodiment and embodiment one is: the angle between the bottom of the two side of groove 4213 and groove 4213 is the obtuse angle.
Embodiment three:
As shown in Figure 5, present embodiment is with the main distinction of above-described embodiment: extension 4212b is arranged on two relative sidewalls of external magnet 421, design in the present embodiment realizes increasing the size of external magnet 421, realizes the technique effect of above-described embodiment; Extension is not designed on another relative axle limit of external magnet 421 simultaneously, has increased the design space of this perimeter sides loudspeaker unit, better meets the actual design demand.
Embodiment four:
As shown in Figure 6, the main distinction of present embodiment and embodiment three is, extension 4212c is arranged on the zone line of external magnet 421 opposing sidewalls, and extension 4212ch is not provided with groove, product design requirement when the cooperation that this design can more be optimized is arranged on the non-zone line in enclosure axis limit when the loudspeaker unit phonate hole.
The utility model is not limited to above-mentioned concrete execution mode; external magnet in loudspeaker unit and the magnetic circuit system also can be the structures such as circle or racetrack; the design of extension can be selected default position and size according to other designing requirement of the loudspeaker units such as phonate hole; those of ordinary skill in the art is from above-mentioned design; without performing creative labour; all conversion of having done all drop within the protection range of the present utility model.
Claims (8)
1. loudspeaker monomer, comprise shell and fasten the protecgulum that is integrated with described shell, contain vibrational system and magnetic circuit system in the cavity that described shell and described protecgulum surround, described magnetic circuit system comprises external magnet and is arranged at the internal magnet of described external magnet inside, it is characterized in that: described external magnet is provided with outward extending extension, the consistency of thickness of the thickness of described extension and described external magnet body.
2. loudspeaker monomer according to claim 1, it is characterized in that: described external magnet is the square ring body.
3. loudspeaker monomer according to claim 2 is characterized in that: be equipped with the extension that extends laterally on four sidewalls of described annular body.
4. loudspeaker monomer according to claim 2 is characterized in that: two sidewalls that described ring body is relative are provided with the extension that extends laterally.
5. according to claim 3 or 4 described loudspeaker monomers, it is characterized in that: the middle part of each described extension is equipped with a groove.
6. loudspeaker monomer according to claim 5, it is characterized in that: the angle between the two side of described groove and the bottom of described groove is the right angle.
7. loudspeaker monomer according to claim 5, it is characterized in that: the angle between the two side of described groove and the bottom of described groove is the obtuse angle.
8. loudspeaker monomer according to claim 4, it is characterized in that: each described extending part is in the middle part of described sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539060 CN202841513U (en) | 2012-10-20 | 2012-10-20 | Loudspeaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539060 CN202841513U (en) | 2012-10-20 | 2012-10-20 | Loudspeaker unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202841513U true CN202841513U (en) | 2013-03-27 |
Family
ID=47953099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220539060 Expired - Lifetime CN202841513U (en) | 2012-10-20 | 2012-10-20 | Loudspeaker unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202841513U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811857A (en) * | 2015-04-30 | 2015-07-29 | 歌尔声学股份有限公司 | Loudspeaker module |
| WO2016141727A1 (en) * | 2015-03-11 | 2016-09-15 | 歌尔声学股份有限公司 | Loudspeaker device |
| CN111131576A (en) * | 2019-12-19 | 2020-05-08 | 歌尔股份有限公司 | Vibration sounding device for electronic product and electronic product |
-
2012
- 2012-10-20 CN CN 201220539060 patent/CN202841513U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141727A1 (en) * | 2015-03-11 | 2016-09-15 | 歌尔声学股份有限公司 | Loudspeaker device |
| CN104811857A (en) * | 2015-04-30 | 2015-07-29 | 歌尔声学股份有限公司 | Loudspeaker module |
| WO2016173276A1 (en) * | 2015-04-30 | 2016-11-03 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN104811857B (en) * | 2015-04-30 | 2018-09-07 | 歌尔股份有限公司 | Loud speaker module |
| US10212510B2 (en) | 2015-04-30 | 2019-02-19 | Goertek Inc. | Loudspeaker module |
| CN111131576A (en) * | 2019-12-19 | 2020-05-08 | 歌尔股份有限公司 | Vibration sounding device for electronic product and electronic product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |