CN205123989U - Bone conduction loudspeaker - Google Patents
Bone conduction loudspeaker Download PDFInfo
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- CN205123989U CN205123989U CN201520925696.9U CN201520925696U CN205123989U CN 205123989 U CN205123989 U CN 205123989U CN 201520925696 U CN201520925696 U CN 201520925696U CN 205123989 U CN205123989 U CN 205123989U
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- support
- bone
- conduction speaker
- permanent magnet
- shell fragment
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Abstract
The utility model discloses a bone conduction loudspeaker relates to electro -acoustic products technical field, including vibration system and stator system, the stator system includes the support and fixes coil and permanent magnet on the support, the permanent magnet sets up the outside of coil, the support is including being located the coil with the first support of permanent magnet below is still including being located the second support in the permanent magnet outside, the material of first support is magnetic materials, the material of second support is non - magnetic materials. The utility model discloses it is low that bone conduction loudspeaker has solved among the prior art bone conduction loudspeaker sensitivity, and the distortion seriously waits technical problem, the utility model discloses bone conduction loudspeaker's magnetic field high -usage, sensitivity is high, and the distortion is little, and whole acoustic performance is good.
Description
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of bone-conduction speaker.
Background technology
Osteoacusis is a kind of sound conduction mode, is mechanical oscillation sound being converted into different frequency, transmits sound wave by the skull of people, osseous labyrinth, inner ear lymph liquid, spiral organ, auditory nerve and auditory center.Produce the classical sound conduction mode of sound wave with respect to vibrating diaphragm, osteoacusis eliminates the step that many sound waves transmit, and can realize sound-reducing clearly in a noisy environment, and sound wave also can not have influence on other people because of spreading in atmosphere.
Bone-conduction speaker is just based on the sound conduction mode of osteoacusis and the novel electro-acoustic transducing device of one developed, because bond-conduction sound is clear, be not affected by the external environment, also can not damage the ear-drum of people, therefore bone-conduction speaker is widely used in fields such as earphones simultaneously.Existing bone-conduction speaker generally includes vibrational system and stator system.Vibrational system comprises washer and shell fragment, and washer is suspended at the top of stator system by shell fragment.Stator system comprises the support be made up of permeability magnetic material, support is fixed with coil and permanent magnet.Permanent magnet produces a constant magnetic field, and coil produces the magnetic field of an alternation according to the sound wave signal of telecommunication by it, and washer can produce the vibration of different frequency under the effect in these two magnetic fields, thus realizes the conversion of electroacoustic.But existing bone-conduction speaker, due to itself structure, can produce certain leakage field, thus the utilance in its magnetic field is lower, cause the sensitivity of bone-conduction speaker lower, distortion is serious, and overall acoustical behavior is undesirable.
Utility model content
For above defect, technical problem to be solved in the utility model is to provide a kind of bone-conduction speaker, and the magnetic field utilance of this bone-conduction speaker is high, highly sensitive, and distortion is little, and overall acoustical behavior is good.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of bone-conduction speaker, involving vibrations system and stator system, described stator system comprises support and fixing coil on the bracket and permanent magnet, described permanent magnet is arranged on the outside of described coil, described support comprises the first support be positioned at below described coil and described permanent magnet, also comprise the second support be positioned at outside described permanent magnet, the material of described first support is permeability magnetic material, and the material of described second support is non-magnet material.
Wherein, described first support and described second support perpendicular.
Wherein, described first support is rectangular configuration, and described permanent magnet is provided with two, and two described permanent magnets are separately positioned on the relative position, both sides of the edge of described first support, described second support is also provided with two, and two described second supports are separately positioned on the outside of two described permanent magnets.
Wherein, described vibrational system comprises shell fragment and washer, and described washer to be fixed on described shell fragment and to be suspended at the top of described stator system by described shell fragment.
Wherein, described shell fragment comprises the fixed part combined with described second support and the connecting portion combined with described washer, connected as one by elastic arm between described fixed part and described connecting portion, the bearing of trend of described elastic arm is consistent with the bearing of trend that described first support is not provided with the edge of described permanent magnet; Described shell fragment is provided with two, and the described fixed part of two described shell fragments respectively second support described with two combines.
Wherein, the bearing of trend of described fixed part and the bearing of trend of described elastic arm perpendicular, and the length of described fixed part is consistent with the width of described second support.
Wherein, the plane at described fixed part place parallels with described second support, and described fixed part is fitted in the inner side of described second support.
Wherein, described washer comprises protruding central part, and the both sides that described central part is relative are respectively provided with an edge part, and the connecting portion of two described shell fragments is separately fixed on two described edge parts.
Wherein, two described edge parts are equipped with the epitaxy part protruding from described central part side, and two described epitaxy parts extend respectively to the described shell fragment combined with it.
Wherein, described connecting portion is fixed on the top of described edge part, and the surface of described central part flushes with the surface of described shell fragment.
After have employed technique scheme, the beneficial effects of the utility model are:
Support due to the utility model bone-conduction speaker comprises the first support be positioned at below coil and permanent magnet, also comprises the second support be positioned at outside permanent magnet, and the material of the first support is permeability magnetic material, and the material of the second support is non-magnet material.Second support of non-magnet material serves shielding action to magnetic field, effectively prevent leaking outside of magnetic field, effectively improve the distribution in magnetic field, thus effectively raise the utilance in magnetic field, and then improve the sensitivity of bone-conduction speaker, reduce distortion, improve the overall acoustical behavior of bone-conduction speaker greatly.
In sum, it is low that the utility model bone-conduction speaker solves bone-conduction speaker sensitivity in prior art, and the technical problems such as distortion is serious, the magnetic field utilance of the utility model bone-conduction speaker is high, highly sensitive, and distortion is little, and overall acoustical behavior is good.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of the utility model bone-conduction speaker;
Fig. 2 is the constitutional diagram of Fig. 1;
Fig. 3 is the A-A line cutaway view of Fig. 2;
In figure: 10, PCB, 20, stator system, the 220, first support, the 222, second support, 24, coil, 26, permanent magnet, 30, vibrational system, 32, shell fragment, 320, fixed part, 322, connecting portion, 324, elastic arm, 34, washer, 340, central part, 342, edge part, 344, epitaxy part.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
The side at nearly bone-conduction speaker center is depended in the inner side related in this specification, and outside refers to the side away from bone-conduction speaker center; The orientation related in this specification refers to the direction being provided with vibrational system, under orientation, refer to the direction being provided with stator system.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, a kind of bone-conduction speaker is rectangle structure, involving vibrations system 30 and stator system 20.Stator system 20 comprises support and the coil 24 that is fixed on support and permanent magnet 26.Vibrational system 30 comprises washer 34 and shell fragment 32, and washer 34 is fixed on shell fragment 32, and is suspended at the top of stator system 20 by shell fragment 32.The below of support is fixed with PCB10, and coil 24 is electrically connected with PCB10.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, support comprises first support 220 and two the second supports 222.First support 220 is rectangular platy structure, is vertically provided with a post core in the middle part of it, and the material of the first support 220 is permeability magnetic material, for support coil 24, permanent magnet 26 and the second support 222.Coil 24 is sleeved on the periphery of post core and is fixed on the first support 220, permanent magnet 26 is provided with two, is separately positioned on the both sides of coil 24, and is positioned at the edge of two minor faces of the first support 220, permanent magnet 26 is list structure, and its width is consistent with the bond length of the first support 220.Two the second supports 222 are platy structure, and the edge being vertically fixed on the both sides minor face of the first support 220 is respectively put, and two the second supports 222 lay respectively at the outside of two permanent magnets 26.The width of two the second supports 222 is consistent with the length of the minor face of the first support 220, and namely the width of the second support 222 is consistent with the width of the first support 220, and the material of two the second supports 222 is non-magnet material, as copper, aluminium, stainless steel or plastics etc.The second support 222 that non-magnet material is made can improve the distribution in magnetic field, effectively prevents magnetic from leaking outside, improves the utilance in magnetic field, thus improve the sensitivity of bone-conduction speaker, reduce distortion.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, shell fragment 32 is provided with two panels altogether, and two panels shell fragment 32 structure is identical, is approximate L shape.Shell fragment 32 comprises the fixed part 320 combined with the second support 222 and the connecting portion 322 combined with washer 34, is connected as one between fixed part 320 and connecting portion 322 by an elastic arm 324.The bearing of trend of fixed part 320 is consistent with the minor face of the first support 220, the bearing of trend of elastic arm 324 is consistent with the long limit of the first support 220, namely the bearing of trend not being provided with the edge of permanent magnet 26 with the first support 220 is consistent, the bearing of trend of fixed part 320 and the bearing of trend of elastic arm 324 perpendicular.Two shell fragments 32 are oppositely arranged, the pair of short edges that namely fixed part 320 of two shell fragments 32 is adjacent with the first support 220 respectively with elastic arm 324 and long limit corresponding, two fixed parts 320 combine with in two the second supports 222 respectively.The length of fixed part 320 is consistent with the width of the second support 222, and the plane at fixed part 320 place parallels with the second support 222, and laminating is fixed on inner side, the plane at elastic arm 324 place and the plane being perpendicular at fixed part 320 place of the second support 222.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, washer 34 comprises protruding central part 340, and in present embodiment, preferred center portion 340 be ellipse, and its major axis parallels with the long limit of the first support 220.In practical application, the structure of central part 340 is not restricted to ellipse, and circle, rectangle are all passable.The connecting portion 322 that the both sides that central part 340 is positioned at its long axis direction are respectively provided with an edge part 342, two shell fragments 32 is separately fixed on two edge parts 342.One end of two edge parts 342 is equipped with an epitaxy part 344, two epitaxy parts 344 all protrude from the side of central part 340 on short-axis direction, and the bearing of trend of two epitaxy parts 344 is contrary, namely two epitaxy parts 344 extend respectively to the direction of the shell fragment 32 combined with it.The setting of epitaxy part adds the bonded area between shell fragment 32 and washer 34, and the two can be made to combine more firm.
As Fig. 1 and Fig. 3 jointly shown in, the upper surface of the central part 340 of washer 34 is higher than the upper surface of edge part 342, and connecting portion 322 is fixed on the upper surface of edge part 342, after the two combines, the upper surface of central part 340 and the upper surface flush of shell fragment 32, this structure is more conducive to the conduction vibrated.
The utility model replaces to non-magnet material by the sidewall of the support made by original permeability magnetic material, magnetic is effectively prevented to leak outside, improve the utilance in magnetic field, thus effectively raise the sensitivity of bone-conduction speaker, reduce its distortion simultaneously, substantially increase the overall acoustical behavior of bone-conduction speaker.
This specification is only carried out detailed elaboration for the bone-conduction speaker of said structure to the technical solution of the utility model, but and do not mean that the technical solution of the utility model is only applicable to the bone-conduction speaker of said structure, the utility model is applicable to the bone-conduction speaker of any one structure, those skilled in the art do not need to pay any performing creative labour and just can be applied in the bone-conduction speaker of other structure by the technical solution of the utility model, therefore, no matter consistent whether with above-described embodiment of other structure of bone-conduction speaker, as long as the sidewall of support is replaced to non-magnet material, leak outside in order to reduce magnetic, to improve sensitivity, the product reducing distortion all falls into protection range of the present utility model.
The first support related in this specification and the name of the second support are only to distinguish technical characteristic, do not represent position relationship therebetween, assemble sequence etc.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion made, all drop within protection range of the present utility model.
Claims (10)
1. bone-conduction speaker, involving vibrations system and stator system, described stator system comprises support and fixing coil on the bracket and permanent magnet, described permanent magnet is arranged on the outside of described coil, it is characterized in that, described support comprises the first support be positioned at below described coil and described permanent magnet, also comprises the second support be positioned at outside described permanent magnet, the material of described first support is permeability magnetic material, and the material of described second support is non-magnet material.
2. bone-conduction speaker according to claim 1, is characterized in that, described first support and described second support perpendicular.
3. bone-conduction speaker according to claim 2, it is characterized in that, described first support is rectangular configuration, described permanent magnet is provided with two, two described permanent magnets are separately positioned on the relative position, both sides of the edge of described first support, described second support is also provided with two, and two described second supports are separately positioned on the outside of two described permanent magnets.
4. bone-conduction speaker according to claim 3, is characterized in that, described vibrational system comprises shell fragment and washer, and described washer to be fixed on described shell fragment and to be suspended at the top of described stator system by described shell fragment.
5. bone-conduction speaker according to claim 4, it is characterized in that, described shell fragment comprises the fixed part combined with described second support and the connecting portion combined with described washer, connected as one by elastic arm between described fixed part and described connecting portion, the bearing of trend of described elastic arm is consistent with the bearing of trend that described first support is not provided with the edge of described permanent magnet; Described shell fragment is provided with two, and the described fixed part of two described shell fragments respectively second support described with two combines.
6. bone-conduction speaker according to claim 5, is characterized in that, the bearing of trend of described fixed part and the bearing of trend of described elastic arm perpendicular, and the length of described fixed part is consistent with the width of described second support.
7. bone-conduction speaker according to claim 6, is characterized in that, the plane at described fixed part place parallels with described second support, and described fixed part is fitted in the inner side of described second support.
8. the bone-conduction speaker according to the arbitrary claim of claim 5 to 7, it is characterized in that, described washer comprises protruding central part, and the both sides that described central part is relative are respectively provided with an edge part, and the connecting portion of two described shell fragments is separately fixed on two described edge parts.
9. bone-conduction speaker according to claim 8, is characterized in that, two described edge parts are equipped with the epitaxy part protruding from described central part side, and two described epitaxy parts extend respectively to the described shell fragment combined with it.
10. bone-conduction speaker according to claim 9, is characterized in that, described connecting portion is fixed on the top of described edge part, and the surface of described central part flushes with the surface of described shell fragment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925696.9U CN205123989U (en) | 2015-11-19 | 2015-11-19 | Bone conduction loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925696.9U CN205123989U (en) | 2015-11-19 | 2015-11-19 | Bone conduction loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123989U true CN205123989U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925696.9U Active CN205123989U (en) | 2015-11-19 | 2015-11-19 | Bone conduction loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123989U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246514A (en) * | 2018-09-30 | 2019-01-18 | 歌尔科技有限公司 | A kind of wireless speakers and earphone |
| WO2023208052A1 (en) * | 2022-04-29 | 2023-11-02 | 苏州索迩电子技术有限公司 | Elastic piece, bone conduction vibration sound-production device, and bone conduction glasses |
-
2015
- 2015-11-19 CN CN201520925696.9U patent/CN205123989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246514A (en) * | 2018-09-30 | 2019-01-18 | 歌尔科技有限公司 | A kind of wireless speakers and earphone |
| WO2023208052A1 (en) * | 2022-04-29 | 2023-11-02 | 苏州索迩电子技术有限公司 | Elastic piece, bone conduction vibration sound-production device, and bone conduction glasses |
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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. |