CN204442669U - Speaker unit - Google Patents
Speaker unit Download PDFInfo
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- CN204442669U CN204442669U CN201520137584.7U CN201520137584U CN204442669U CN 204442669 U CN204442669 U CN 204442669U CN 201520137584 U CN201520137584 U CN 201520137584U CN 204442669 U CN204442669 U CN 204442669U
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- fixed part
- voice coil
- speaker unit
- loudspeaker voice
- circular arc
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Abstract
The utility model discloses a kind of speaker unit, comprise auxiliary system, magnetic circuit system and vibrational system, described magnetic circuit system and the collecting of described vibrational system are fixed in described auxiliary system; Described vibrational system comprises the vibrating diaphragm, centring disk and the voice coil loudspeaker voice coil that combine; Described centring disk comprises the first fixed part, the second fixed part and connects the linking arm of described first fixed part and described second fixed part; Described voice coil loudspeaker voice coil rectangle, four bights of described rectangular coil are set to circular arc; And: described linking arm comprises the extension extended from described second fixed part; Described extension extends from the position in the corresponding described voice coil loudspeaker voice coil circular arc bight of described second fixed part; Described extension is designed arc-shaped appearance, and described extension circular arc and described voice coil loudspeaker voice coil bight circular arc are concentric circles.It is good that the utility model speaker unit has acoustical behavior, is conducive to high powe design, the advantage of long service life.
Description
Technical field
The utility model relates to electroacoustic field, especially relates to the speaker unit that a kind of acoustical behavior is good, be convenient to high powe design, long service life.
Background technology
Along with the expansion in consumer electronics market, the consumer electronics products such as a large amount of mobile phone, notebook computer are used widely, and as acoustic element important in consumer electronics product, speaker unit has demand widely.Along with the raising that people require consumer electronics product, the performance of speaker unit also more and more receives the concern of people.
Speaker unit, comprising: auxiliary system, magnetic circuit system and vibrational system; Magnetic circuit system is provided with magnetic gap; Vibrational system, the centring disk comprise vibrating diaphragm, combining with vibrating diaphragm and voice coil loudspeaker voice coil, voice coil loudspeaker voice coil is arranged in magnetic gap; The curent change be arranged in the voice coil loudspeaker voice coil in magnetic gap makes the magnetic field force induced effect of voice coil loudspeaker voice coil produce vibration, drives diaphragm oscillations sounding.The speaker unit of traditional structure, centring disk comprises the first fixed part and the second fixed part, and the first fixed part and auxiliary system are fixed, and the second fixed part is combined with voice coil loudspeaker voice coil, and the first fixed part and the second fixed part are integrally connected setting by linking arm.The centring disk of traditional structure, the linking arm that second fixed part is connected with the first fixed part is connected with the first fixed part after the second fixed part extends, linking arm directly extends out from the second fixed part, in diaphragm of loudspeaker vibration processes, linking arm amplitude is little, easy and vibrating diaphragm produces wiping and touches, speaker unit is made to produce noise, reduce speaker unit acoustical behavior, limit the high powe design of speaker unit, meanwhile, linking arm and vibrating diaphragm are wiped and are touched, easy destruction vibrating diaphragm, reduces the useful life of speaker unit.
Therefore, be necessary to propose a kind of improvement, to overcome traditional structure speaker unit defect.
Utility model content
It is good that technical problem to be solved in the utility model is to provide a kind of acoustical behavior, is convenient to high powe design, the speaker unit of long service life.
To achieve these goals, the utility model is by the following technical solutions:
A kind of speaker unit, comprises auxiliary system, magnetic circuit system and vibrational system, and described magnetic circuit system and the collecting of described vibrational system are fixed in described auxiliary system; Described vibrational system comprises the vibrating diaphragm, centring disk and the voice coil loudspeaker voice coil that combine; Described centring disk comprises the first fixed part, the second fixed part and connects the linking arm of described first fixed part and described second fixed part, and described first fixed part and described auxiliary system are fixed; Described voice coil loudspeaker voice coil is rectangular, and four bights of described rectangular coil are set to circular arc; And: described linking arm comprises the extension extended from described second fixed part; Described extension extends from the position in the corresponding described voice coil loudspeaker voice coil circular arc bight of described second fixed part; Described extension is designed arc-shaped appearance, and described extension circular arc overlaps with the center of circle of described voice coil loudspeaker voice coil bight circular arc.
As the preferred technical scheme of one, described second fixed part is rectangle, and described linking arm extends along the major axis of described rectangle second fixed part and/or minor axis.
As the preferred technical scheme of one, described centring disk is also provided with welding disk, and described welding disk is electrically connected with described voice coil loudspeaker voice coil.
As further preferred version, described first fixed part and described second fixed part are straight-flanked ring structure, described welding disk is arranged at the inner side of described second fixed part away from described first fixed part, described welding disk comprises two pads, and described two pads correspondence is arranged at two straight lines of described rectangle second fixed part.On this basis, described second fixed part is rectangle, and described two pads correspondence is arranged at two major axis limits of described second fixed part.
As the further preferred version of another kind, described magnetic circuit system comprises magnet and magnetic conductive board, and described magnetic conductive board is fixed on described magnet near described centring disk side, and the corresponding described welding disk of described magnetic conductive board is provided with depression.
As the preferred technical scheme of one, described auxiliary system comprises shell and protecgulum, and described shell is provided with positioning step, and described first fixed part is fixed on described positioning step.On this basis, described magnetic circuit system comprises magnetic conductive board, magnet and conductive magnetic yoke; Described shell is provided with opening away from described centring disk one end, and described conductive magnetic yoke is arranged in described opening; Described outer side face is concordant with described conductive magnetic yoke lateral surface.
The utility model speaker unit, first fixed part and second fixed part of centring disk are integrally connected setting by linking arm, linking arm is extended by the position of extension from the corresponding voice coil loudspeaker voice coil circular arc bight of the second fixed part, extension is circular arc, its circular arc of the extension of this circular arc overlaps with the center of circle of voice coil loudspeaker voice coil bight circular arc, and namely two circular arcs are concentric circles.This circular arc extension effectively extends the length of linking arm, makes speaker unit vibrational system obtain larger compliance, thus improves the low frequency performance of loud speaker.Simultaneously, the extension of circular arc lengthens the length of linking arm, when avoiding vibrational system to vibrate, the vibrating diaphragm of vibration and linking arm produce wiping and touch, avoid the noise therefore produced, improve the acoustical behavior of speaker unit, and when can ensure that speaker unit power is larger, vibrating diaphragm is not wiped with linking arm and is touched, and is conducive to the high powe design of speaker unit; Linking arm is not wiped with vibrating diaphragm and is touched, and avoids the destruction of linking arm to vibrating diaphragm, extends the useful life of loud speaker.Therefore, it is good that the utility model speaker unit has acoustical behavior, is convenient to high powe design, the advantage of long service life.
Because the second fixed part is rectangular configuration, described linking arm extends along the second fixed part major axis of rectangular configuration and/or short-axis direction, and also namely linking arm is arranged at least one group of respective shaft limit of rectangle second connecting portion, and linking arm at least comprises two; When linking arm is set to two, two major axis limits of corresponding second fixed parts of two linking arms extend or two minor axis limits extend, and when linking arm is four, four linking arms extend along the axle limit of the second fixed part.The centring disk of this structure can ensure that diaphragm oscillations balances, and not easily produces polarization, is conducive to the acoustical behavior improving speaker unit.
This centring disk is provided with welding disk, and centring disk is electrically connected with voice coil loudspeaker voice coil, simplifies the circuit design of speaker unit.First fixed part and the second fixed part are loop configuration, reduce centring disk weight, thus reduce vibrational system weight, are conducive to the acoustical behavior improving speaker unit.In order to reduce welding disk taking speaker unit inner space, welding disk is arranged at the inner side of the second fixed part away from the first fixed part, and welding disk comprises two pads, and two pad correspondences are arranged at two straight lines of rectangle second fixed part.When the second fixed part is rectangle, two pads are arranged at two major axis limits of the second fixed part, can reduce the difficulty of processing of centring disk.After voice coil loudspeaker voice coil is electrically connected with pad, in vibration processes, pad locations and magnetic circuit system produce wiping and touch, and the corresponding welding disk of magnetic circuit system magnetic conductive board is provided with depression, increasing oscillation space, improving acoustical behavior when not affecting magnetic circuit system.
Because auxiliary system comprises shell and protecgulum, shell is provided with positioning step, and centring disk first fixed part is fixed on positioning step, improves the firmness that centring disk and auxiliary system are fixing, improves speaker unit reliability and useful life.Magnetic circuit system comprises magnetic conductive board, magnet and conductive magnetic yoke, shell is provided with opening away from centring disk one end, and conductive magnetic yoke is arranged in opening, and outer side face is concordant with conductive magnetic yoke lateral surface, improve magnetic circuit system volume to greatest extent, improve the acoustical behavior of speaker unit.
In sum, it is good that the utility model speaker unit has acoustical behavior, is conducive to high powe design, the advantage of long service life.
Accompanying drawing explanation
Fig. 1 is the utility model speaker unit embodiment exploded view;
Fig. 2 is the cutaway view of speaker unit shown in Fig. 1;
Fig. 3 is the utility model speaker unit embodiment centring disk structural representation;
Fig. 4 is for the centring disk shown in Fig. 3 and voice coil loudspeaker voice coil are in conjunction with schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
As shown in Figures 1 and 2, a specific embodiment of the utility model speaker unit, the speaker unit of the present embodiment is rectangle structure, comprises auxiliary system, and described auxiliary system comprises protecgulum 11 and shell 12; The protecgulum 11 of described auxiliary system and shell 12 form the cavity that collecting is fixed with magnetic circuit system and vibrational system, magnetic circuit system comprises centring magnet 51 and limit magnet 61, and fixed center magnet 51 and limit magnet 61 play the conductive magnetic yoke 7 of magnetic conduction effect, centring magnet 51 is provided with central guiding magnetic sheet 52 near the one side of protecgulum 11, limit magnet 61 is provided with limit washer 62 near the one side of protecgulum 11, and centring magnet 51, center washer 52 form magnetic gap with limit magnet 61, limit washer 62; Vibrational system comprises the composite bed 22 that vibrating diaphragm 21 is fixed on vibrating diaphragm 21, and the centring disk 3 fixing with vibrating diaphragm 21 and voice coil loudspeaker voice coil 4, voice coil loudspeaker voice coil 4 is arranged in above-mentioned magnetic gap.The utility model speaker unit, external circuit electronic signal enters in voice coil loudspeaker voice coil 4, and the voice coil loudspeaker voice coil 4 internal current change be arranged in magnetic gap produces magnetic field force, and voice coil loudspeaker voice coil 4 vibrates and drives vibrating diaphragm 21 vibration sounding.
As shown in Figure 3, centring disk 3 comprises the first fixed part 31, second fixed part 32, first fixed part 31 and is integrally connected setting with the second fixed part 32 by linking arm 33, and linking arm 33 extends the second fixed part 32 by extension 331.First fixed part 31 of centring disk 3 is fixed with auxiliary system, and as shown in Figure 4, the second fixed part 32 is fixed with voice coil loudspeaker voice coil 4.Voice coil loudspeaker voice coil 4 is rectangular configuration, and four bights of the voice coil loudspeaker voice coil 4 of rectangular configuration are designed arc-shaped appearance.。As shown in Figures 3 and 4, extension 331 is designed arc-shaped appearance, and the extension 331 of designed arc-shaped appearance extends from the position in the second fixed part 32 corresponding voice coil loudspeaker voice coil 4 circular arc bight, as shown in Figure 4, the circular arc of extension 331 overlaps with the center of circle of the corresponding circular arc of voice coil loudspeaker voice coil 4, and also namely two circular arcs are concentric circles.The speaker unit of the present embodiment, the second fixed part 32 and voice coil loudspeaker voice coil 4 secure bond, in actual applications, the second fixed part 32 can not with voice coil loudspeaker voice coil 4 secure bond, do not affect the utility model speaker unit advantage applies.The extension 331 of circular-arc-shaped design, increase effectively the entire length of linking arm 33, makes speaker unit vibrational system obtain larger compliance, thus improves the low frequency characteristic of loud speaker.Simultaneously, the extension 331 of circular arc increases the length of linking arm 33, when avoiding speaker unit to work, produce wiping in diaphragm oscillations process touch with linking arm 33 and produce noise, improve the acoustical behavior of speaker unit, and when ensureing that power of loudspeaker is larger, vibrating diaphragm is not wiped with linking arm 33 and is touched, and is conducive to the high powe design of speaker unit; Linking arm 33 can not be wiped with vibrating diaphragm and touch, and avoids the destruction of linking arm 33 pairs of vibrating diaphragms, extends the useful life of speaker unit.Therefore, the utility model speaker unit has the advantage that acoustical behavior is good, be conducive to high powe design, long service life.
As shown in Figures 3 and 4, the speaker unit of the present embodiment, second fixed part 32 is rectangular configuration, linking arm 33 extends along four axle limits of rectangular configuration second fixed part 32, in actual applications, linking arm 33 can according to actual product needs, extend along two major axis limits of the second fixed part 32 or two minor axis limits.When linking arm 33 is two, two major axis limits of two corresponding second fixed parts 32 of linking arm 33 extend or two minor axis limits extend; When linking arm 33 is four, four linking arms 33 extend along the axle limit of the second fixed part 32.The centring disk of this structure can ensure that diaphragm oscillations balances, and not easily produces polarization, is conducive to the certralizing ability of centring disk 3 pairs of vibrating diaphragms, and the vibration improving centring disk 3 pairs of speaker unit vibrational systems regulates, and is conducive to the acoustical behavior improving speaker unit.
As shown in Figures 3 and 4, centring disk 3 also comprises welding disk 34, and welding disk 34 is electrically connected with voice coil loudspeaker voice coil 4.Centring disk 3 is provided with welding disk 34, simplifies the circuit design of speaker unit, and centring disk 3 is joined integrally with lines of loudspeakers plate.As shown in Figure 1, speaker unit comprises electrical connector 8, and electrical connector 8 is electrically connected with centring disk 3, and electrical connector 8 directly need not be electrically connected with voice coil loudspeaker voice coil 4, voice coil loudspeaker voice coil 4 need not be welded during speaker unit assembling to go between and electrical connector 8, reduce the assembling production difficulty of speaker unit.As shown in Figures 3 and 4, first fixed part 31, second fixed part 32 of centring disk is loop configuration, first fixed part 31 of loop configuration and the second fixed part 32 reduce centring disk weight, thus reduce vibrational system quality, are conducive to the acoustical behavior improving speaker unit.Welding disk 34 includes two pads, two pads are arranged at the inner side of the second fixed part 32 away from the first fixed part 31, two pad correspondences are arranged at two right-angle sides of rectangle second fixed part 32, this design takes full advantage of the inner space of speaker unit, reduces welding disk taking speaker unit oscillation space.As shown in drawings, the speaker unit of the present embodiment, the second fixed part 32 is rectangle structure, two pad correspondences are arranged at two major axis limits, increase operating space during the welding of pad and voice coil loudspeaker voice coil 4 wire bonds, be conducive to improving product yield, reduce and assemble difficulty.
As shown in Figures 1 and 2, touch in order to avoid welding disk 34 up-down vibration and central guiding magnetic sheet 52 when speaker operation produce wiping, central guiding magnetic sheet 52 corresponding welding disk 34 position is provided with depression 522, depression 522 is dodged welding disk 34 when not affecting magnetic circuit system, increase the oscillation space of vibrational system, avoid wiping to touch noise, improve the acoustical behavior of speaker unit.
As shown in Figure 2, be provided with positioning step 121 inside shell 12, the first fixed part 31 of centring disk 3 is fixed with positioning step 121, improve centring disk and shell 12 in conjunction with firmness, the reliability of raising speaker unit and useful life.As shown in Figure 2, shell 12 is provided with opening away from one end of protecgulum 11, conductive magnetic yoke 7 is arranged in described opening, the outer surface of conductive magnetic yoke 7 and the flush with outer surface of shell 12, this design has maximally utilised the inner space of speaker unit shell, improve speaker unit magnetic circuit system volume, thus improve the acoustical behavior of speaker unit.
In sum, it is good that the utility model speaker unit has acoustical behavior, is conducive to high powe design, the advantage of long service life.
These are only the utility model case study on implementation, be not limited to the utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that the utility model institute disclosure is done, all should include in the protection range recorded in claims.
Claims (8)
1. a speaker unit, comprises auxiliary system, magnetic circuit system and vibrational system, and described magnetic circuit system and the collecting of described vibrational system are fixed in described auxiliary system; Described vibrational system comprises the vibrating diaphragm, centring disk and the voice coil loudspeaker voice coil that combine; Described centring disk comprises the first fixed part, the second fixed part and connects the linking arm of described first fixed part and described second fixed part, and described first fixed part and described auxiliary system are fixed; Described voice coil loudspeaker voice coil is rectangular, and four bights of described rectangular coil are set to circular arc; It is characterized in that: described linking arm comprises the extension extended from described second fixed part; Described extension extends from the position in the corresponding described voice coil loudspeaker voice coil circular arc bight of described second fixed part; Described extension is designed arc-shaped appearance, and described extension circular arc overlaps with the center of circle of described voice coil loudspeaker voice coil bight circular arc.
2. speaker unit according to claim 1, is characterized in that: described second fixed part is rectangle, and described linking arm extends along the major axis of described rectangle second fixed part and/or minor axis.
3. speaker unit according to claim 1, is characterized in that: described centring disk is also provided with welding disk, and described welding disk is electrically connected with described voice coil loudspeaker voice coil.
4. speaker unit according to claim 3, it is characterized in that: described first fixed part and described second fixed part are straight-flanked ring structure, described welding disk is arranged at the inner side of described second fixed part away from described first fixed part, described welding disk comprises two pads, and described two pads correspondence is arranged at two straight lines of described rectangle second fixed part.
5. speaker unit according to claim 4, is characterized in that: described second fixed part is rectangle, and described two pads correspondence is arranged at two major axis limits of described second fixed part.
6. the speaker unit according to the arbitrary claim of claim 3 to 5, it is characterized in that: described magnetic circuit system comprises magnet and magnetic conductive board, described magnetic conductive board is fixed on described magnet near described centring disk side, and the corresponding described welding disk of described magnetic conductive board is provided with depression.
7. speaker unit according to claim 1, is characterized in that: described auxiliary system comprises shell and protecgulum, and described shell is provided with positioning step, and described first fixed part is fixed on described positioning step.
8. speaker unit according to claim 7, is characterized in that: described magnetic circuit system comprises magnetic conductive board, magnet and conductive magnetic yoke; Described shell is provided with opening away from described centring disk one end, and described conductive magnetic yoke is arranged in described opening; Described outer side face is concordant with described conductive magnetic yoke lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137584.7U CN204442669U (en) | 2015-03-11 | 2015-03-11 | Speaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137584.7U CN204442669U (en) | 2015-03-11 | 2015-03-11 | Speaker unit |
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| Publication Number | Publication Date |
|---|---|
| CN204442669U true CN204442669U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520137584.7U Active CN204442669U (en) | 2015-03-11 | 2015-03-11 | Speaker unit |
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| CN (1) | CN204442669U (en) |
Cited By (2)
| 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 |
| WO2020024661A1 (en) * | 2018-08-03 | 2020-02-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2015
- 2015-03-11 CN CN201520137584.7U patent/CN204442669U/en active Active
Cited By (2)
| 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 |
| WO2020024661A1 (en) * | 2018-08-03 | 2020-02-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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| Date | Code | Title | Description |
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| 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. |