CN209402723U - A kind of bone-conduction speaker - Google Patents
A kind of bone-conduction speaker Download PDFInfo
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- CN209402723U CN209402723U CN201921255504.2U CN201921255504U CN209402723U CN 209402723 U CN209402723 U CN 209402723U CN 201921255504 U CN201921255504 U CN 201921255504U CN 209402723 U CN209402723 U CN 209402723U
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- elastic slice
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Abstract
The utility model provides a kind of bone-conduction speaker, including shell, stationary part, the first oscillator part and the second oscillator part are equipped in the shell, it being capable of relative motion point between first oscillator part and the second transducer part, the intrinsic frequency of first oscillator part is higher than the intrinsic frequency of the second oscillator part, first oscillator part is arranged concentrically with the second oscillator part, and the stationary part is located at the first oscillator sections inner side and/or in the gap between the first oscillator part and the second transducer part point.The utility model has the advantages that: the stationary vibration of the multiple intrinsic frequency points of product can be achieved, while meeting the acoustical behavior of product low-frequency range and high band, solve the problems, such as that its high band is decayed when low-frequency range acoustical behavior is good in product use process.
Description
Technical field
The utility model relates to electroacoustic techniques fields.
Specifically, being to be related to a kind of bone-conduction speaker.
Background technique
Bone-conduction speaker is applied in the beforehand research of earphone complete product mostly as a novel acoustic product,
It is different from traditional acoustics beep pattern, sounding and with the resonance of the skull of people.Traditional bone conduction vibrator product can only
It realizes the vibration of single intrinsic frequency, the problem of its high band is decayed when low-frequency range acoustical behavior is good, can not expire simultaneously
The acoustical behavior of sufficient low-frequency range and high band.
The side that current osteoacusis product mostly uses greatly metal clips and other lesser materials (such as vibrating diaphragm) of rigidity to combine
The stability of formula, leakproofness and product is very poor, and making technology is complicated, and difficulty is larger, the higher cost of monomer.
Utility model content
The purpose of the utility model is to overcome the shortcomings of above-mentioned traditional technology, provide a kind of bone-conduction speaker,
Meet the acoustical behavior of product low-frequency range and high band simultaneously, solves the confinement problems in product use process.
The purpose of this utility model is reached by following technical measures:
A kind of bone-conduction speaker, including shell, the shell is interior to be equipped with stationary part, the first oscillator part and the second vibration
Point between subdivision, first oscillator part and the second transducer part can relative motion, first oscillator part it is intrinsic
Frequency is higher than the intrinsic frequency of the second oscillator part, and first oscillator part is arranged concentrically with the second oscillator part, described fixed
Subdivision is located at the first oscillator sections inner side and/or in the gap between the first oscillator part and the second transducer part point.
As an improvement: first transducer part point includes the first elastic slice and the first magnetic being set on the first elastic slice
Body, second transducer part point include the second elastic slice and the second magnet being set on the second elastic slice, and second magnet is located at
On the outside of first magnet.
As an improvement: the stationary part includes first coil, and the first coil is located on the inside of the first magnet.
As an improvement: the stationary part includes first coil, and the first coil is located at the first magnet and second
Between magnet.
As an improvement: the stationary part further includes the second coil, and second coil is located at the first magnet and
Between two magnets.
As an improvement: mass block is additionally provided on second elastic slice, the mass block is located on the outside of the second magnet.
As an improvement: the rigidity of first elastic slice is greater than the rigidity of the second elastic slice.
As an improvement: second elastic slice and cage connection are equipped with the between second elastic slice and the first elastic slice
Two washers are equipped with the first washer between first elastic slice and shell.
As an improvement: the shell includes upper casing, middle shell and lower casing, and second elastic slice and middle shell are close to upper casing
Side welding, side of first washer far from the first elastic slice offsets with upper casing.
As an improvement: the stationary part is set on lower casing.
As an improvement: first elastic slice, which is equipped with, holds the first through hole that first coil passes through, second elastic slice
It is equipped with and holds the second through-hole that the second coil passes through.
As an improvement: iron core is equipped on the inside of the first coil.
As an improvement: the iron core is socketed with axle sleeve.
By adopting the above-described technical solution, compared with prior art, the utility model has the advantages that:
1, oscillator structure uses " double suspensions " concentric design of double elastic slices, double magnet, it can be achieved that the multiple intrinsic frequencies of product
The stationary vibration of point, while meeting the acoustical behavior of product low-frequency range and high band, solve low-frequency range sound in product use process
The problem of its high band is decayed when learning functional；
2, double elastic slices are fixed in such a way that connection and washer combine reduces making technology difficulty on the shell, reduces system
Cheng Chengben, while the leakproofness of product is improved, the strength of reliability of product is improved, realizes the stationary vibration of oscillator；
3, the magnetic circuit part of this structure is arranged using double voice coil concentric structure, and interior voice coil is positioned by iron core, reduces technique
Difficulty；Double voice coil and double oscillator matching designs simultaneously, improve product magnetic strength line use ratio, promote product entirety acoustical behavior.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Attached drawing 1 is a kind of decomposition texture schematic diagram of bone-conduction speaker in the utility model embodiment 1.
Attached drawing 2 is a kind of schematic diagram of internal structure of bone-conduction speaker in the utility model embodiment 1.
Attached drawing 3 is a kind of structural schematic diagram of stator in bone-conduction speaker in the utility model embodiment 1.
Attached drawing 4 is a kind of structural schematic diagram of oscillator in bone-conduction speaker in the utility model embodiment 1.
Attached drawing 5 is a kind of schematic diagram of internal structure of bone-conduction speaker in the utility model embodiment 2.
Attached drawing 6 is a kind of structural schematic diagram of stator in bone-conduction speaker in the utility model embodiment 2.
Attached drawing 7 is a kind of schematic diagram of internal structure of bone-conduction speaker in the utility model embodiment 3.
Attached drawing 8 is a kind of structural schematic diagram of stator in bone-conduction speaker in the utility model embodiment 3.
Attached drawing 9 is a kind of analog frequency response comparison diagram of bone-conduction speaker of the utility model.
In figure: 1- upper casing；The first washer of 2-；The first elastic slice of 3-；4- second packing ring；The first magnet of 5-；The second elastic slice of 6-；7-
Mass block；The second magnet of 8-；The second coil of 9-；Shell in 10-；11- axle sleeve；12- iron core；13- first coil；14- circuit board；
15- lower casing.
Specific embodiment
Embodiment 1: as shown in attached drawing 1,2, a kind of bone-conduction speaker, including shell, the shell is interior to be equipped with stator department
Point, the first oscillator part and the second oscillator part, between first oscillator part and the second transducer part point can relative motion,
The intrinsic frequency of first oscillator part is higher than the intrinsic frequency of the second oscillator part, first oscillator part and the second vibration
Subdivision is arranged concentrically.
The shell includes upper casing 1, middle shell 10 and lower casing 15, and the upper casing 1 is welded with middle shell 10, and the middle shell 10 is under
Shell 15 welds.
As shown in Fig. 3, the stationary part is set on lower casing 15.
The stationary part includes first coil 13 and the second coil 9, and the shape of the first coil 13 is circular ring shape, institute
The shape for stating the second coil 9 is circular ring shape.
The first coil 13 and the second coil 9 are connected with circuit board 14, and lower casing 15 is stretched out in 14 end of circuit board.
Iron core 12 is equipped on the inside of the first coil 13, the iron core 12 is welded with lower casing 15.
The iron core 12 is socketed with axle sleeve 11, the first coil 13 and is socketed on 11 outside of axle sleeve.
The lower casing 15 is equipped with locating slot, and the iron core 12, first coil 13, the second coil 9 are set in locating slot.
As shown in Fig. 4, the first magnetic that first transducer part point elastic slice 3 and be set on the first elastic slice 3 including first
Body 5, the second magnet 8 that second transducer part point elastic slice 6 and be set on the second elastic slice 6 including second, second magnet 8
Positioned at 5 outside of the first magnet.
The rigidity of first elastic slice 3 is greater than the rigidity of the second elastic slice 6.
The shape of first magnet 5 is circular ring shape, and the shape of second magnet 8 is circular ring shape.
The first coil 13 is located at 5 inside of the first magnet, and second coil 9 is located at the first magnet 5 and the second magnet 8
Between.
Second elastic slice 6 is equipped with mass block 7, and the shape of the mass block 7 is circular ring shape, 7 inside of mass block
Equipped with the second magnet 8.
Second magnet 8 is located at 9 outside of the second coil.
First elastic slice 3, which is equipped with, holds the first through hole that first coil 13 passes through.
Second elastic slice 6, which is equipped with, holds the second through-hole that the second coil 9 passes through.
Second elastic slice 6 and cage connection.
Select excellent, second elastic slice 6 is welded with middle shell 10 close to the side of upper casing 1.
It is equipped with second packing ring 4 between second elastic slice 6 and the first elastic slice 3, is equipped between first elastic slice 3 and shell
First washer 2, side of first washer 2 far from the first elastic slice 3 offset with upper casing 1.
The shape of first washer 2 is circular ring shape, and the shape of the second packing ring 4 is circular ring shape.
First washer 2 clamps the first elastic slice 3 with second packing ring 4.
Embodiment 2: as shown in Fig. 5, a kind of bone-conduction speaker, including shell, be equipped in the shell stationary part,
Point between first oscillator part and the second oscillator part, first oscillator part and the second transducer part can relative motion, institute
The intrinsic frequency for stating the first oscillator part is higher than the intrinsic frequency of the second oscillator part, first oscillator part and the second oscillator
Partial concentric setting.
The shell includes upper casing 1, middle shell 10 and lower casing 15, and the upper casing 1 is welded with middle shell 10, and the middle shell 10 is under
Shell 15 welds.
As shown in Fig. 6, the stationary part is set on lower casing 15.
The stationary part includes first coil 13, and the shape of the first coil 13 is circular ring shape.
The first coil 13 is connected with circuit board 14, and lower casing 15 is stretched out in 14 end of circuit board.
Iron core 12 is equipped on the inside of the first coil 13, the iron core 12 is welded with lower casing 15.
The iron core 12 is socketed with axle sleeve 11, the first coil 13 and is socketed on 11 outside of axle sleeve.
The lower casing 15 is equipped with locating slot, and the iron core 12, first coil 13 are set in locating slot.
As shown in Fig. 4, the first magnetic that first transducer part point elastic slice 3 and be set on the first elastic slice 3 including first
Body 5, the second magnet 8 that second transducer part point elastic slice 6 and be set on the second elastic slice 6 including second, second magnet 8
Positioned at 5 outside of the first magnet.
The rigidity of first elastic slice 3 is greater than the rigidity of the second elastic slice 6.
The shape of first magnet 5 is circular ring shape, and the shape of second magnet 8 is circular ring shape.
The first coil 13 is located at 5 inside of the first magnet.
Second elastic slice 6 is equipped with mass block 7, and the shape of the mass block 7 is circular ring shape, 7 inside of mass block
Equipped with the second magnet 8.
First elastic slice 3, which is equipped with, holds the first through hole that first coil 13 passes through.
Second elastic slice 6 and cage connection.
Select excellent, second elastic slice 6 is welded with middle shell 10 close to the side of upper casing 1.
It is equipped with second packing ring 4 between second elastic slice 6 and the first elastic slice 3, is equipped between first elastic slice 3 and shell
First washer 2, side of first washer 2 far from the first elastic slice 3 offset with upper casing 1.
The shape of first washer 2 is circular ring shape, and the shape of the second packing ring 4 is circular ring shape.
First washer 2 clamps the first elastic slice 3 with second packing ring 4.
Embodiment 3: as shown in Fig. 7, a kind of bone-conduction speaker, including shell, be equipped in the shell stationary part,
Point between first oscillator part and the second oscillator part, first oscillator part and the second transducer part can relative motion, institute
The intrinsic frequency for stating the first oscillator part is higher than the intrinsic frequency of the second oscillator part, first oscillator part and the second oscillator
Partial concentric setting.
The shell includes upper casing 1, middle shell 10 and lower casing 15, and the upper casing 1 is welded with middle shell 10, and the middle shell 10 is under
Shell 15 welds.
As shown in Fig. 8, the stationary part is set on lower casing 15.
The stationary part includes first coil 13, and the shape of the first coil 13 is circular ring shape.
The first coil 13 is connected with circuit board 14, and lower casing 15 is stretched out in 14 end of circuit board.
The iron core 12 is socketed with axle sleeve 11, the first coil 13 and is socketed on 11 outside of axle sleeve.
The lower casing 15 is equipped with locating slot, and the iron core 12, first coil 13 are set in locating slot.
As shown in Fig. 4, the first magnetic that first transducer part point elastic slice 3 and be set on the first elastic slice 3 including first
Body 5, the second magnet 8 that second transducer part point elastic slice 6 and be set on the second elastic slice 6 including second, second magnet 8
Positioned at 5 outside of the first magnet.
The rigidity of first elastic slice 3 is greater than the rigidity of the second elastic slice 6.
The shape of first magnet 5 is circular ring shape, and the shape of second magnet 8 is circular ring shape.
The first coil 13 is between the first magnet 5 and the second magnet 8.
Second elastic slice 6 is equipped with mass block 7, and the shape of the mass block 7 is circular ring shape, 7 inside of mass block
Equipped with the second magnet 8.
Second magnet 8 is located at 13 outside of first coil.
Second elastic slice 6, which is equipped with, holds the second through-hole that first coil 13 passes through.
Second elastic slice 6 and cage connection.
Select excellent, second elastic slice 6 is welded with middle shell 10 close to the side of upper casing 1.
It is equipped with second packing ring 4 between second elastic slice 6 and the first elastic slice 3, is equipped between first elastic slice 3 and shell
First washer 2, side of first washer 2 far from the first elastic slice 3 offset with upper casing 1.
The shape of first washer 2 is circular ring shape, and the shape of the second packing ring 4 is circular ring shape.
First washer 2 clamps the first elastic slice 3 with second packing ring 4.
It can be seen that in the technical scheme in conjunction with attached emulation testing curve shown in Fig. 9, the rigidity system of each of which elastic slice
Several and weight mass engaged therewith is all different, wherein 3 stiffness coefficient of the first elastic slice is big, and weight mass is light, intrinsic frequency
Higher, so the acoustical behavior of high band can be promoted effectively, monomer has biggish high frequency performance to be promoted after 4KHz, occurs high
The wave crest of frequency point solves the problems, such as that " decaying " occurs in its high band when low-frequency range acoustical behavior is good；Second elastic slice, 6 rigidity system
Number is small, and weight mass weight, intrinsic frequency is low, can effectively realize the low frequency dive of product, promotes the frequency acoustic performance of product,
Solve the problems, such as that the good product low-frequency range dive of high band acoustical behavior is poor；To sum up described, this structure can realize product
The stationary vibration of multiple intrinsic frequency points, while meeting the acoustical behavior of product low-frequency range and high band, it solves product and used
Confinement problems in journey.
Several embodiments of the utility model are described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should all belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of bone-conduction speaker, including shell, it is characterised in that: be equipped with stationary part, the first transducer part in the shell
Point and the second oscillator part, point between first oscillator part and the second transducer part can relative motion, first oscillator
Partial intrinsic frequency is higher than the intrinsic frequency of the second oscillator part, and first oscillator part is set with the second oscillator partial concentric
It sets, the stationary part is located at the first oscillator sections inner side and/or positioned at the first oscillator part and the second transducer part point between
In gap.
2. bone-conduction speaker according to claim 1, it is characterised in that: first transducer part point includes the first elastic slice
(3) and the first magnet (5) for being set on the first elastic slice (3), second transducer part point is including the second elastic slice (6) and is set to
The second magnet (8) on second elastic slice (6), second magnet (8) are located on the outside of the first magnet (5).
3. bone-conduction speaker according to claim 2, it is characterised in that: the stationary part includes first coil
(13), the first coil (13) is located on the inside of the first magnet (5).
4. bone-conduction speaker according to claim 2, it is characterised in that: the stationary part includes first coil
(13), the first coil (13) is between the first magnet (5) and the second magnet (8).
5. bone-conduction speaker according to claim 3, it is characterised in that: the stationary part further includes the second coil
(9), second coil (9) is between the first magnet (5) and the second magnet (8).
6. bone-conduction speaker according to claim 2, it is characterised in that: be additionally provided with quality on second elastic slice (6)
Block (7), the mass block (7) are located on the outside of the second magnet (8).
7. bone-conduction speaker according to claim 2, it is characterised in that: the rigidity of first elastic slice (3) is greater than the
The rigidity of two elastic slices (6).
8. bone-conduction speaker according to claim 2, it is characterised in that: second elastic slice (6) and cage connection, institute
It states and is equipped with second packing ring (4) between the second elastic slice (6) and the first elastic slice (3), equipped with the between first elastic slice (3) and shell
One washer (2).
9. bone-conduction speaker according to claim 2, it is characterised in that: first elastic slice (3), which is equipped with, holds first
The first through hole that coil (13) passes through；Second elastic slice (6), which is equipped with, holds the second through-hole that the second coil (9) pass through.
10. according to one of them described bone-conduction speaker of claim 2 to 9, it is characterised in that: the shell includes upper casing
(1), middle shell (10) and lower casing (15), second elastic slice (6) and middle shell (10) are welded close to the side of upper casing (1), and described the
One washer (2) offsets far from the side of the first elastic slice (3) with upper casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255504.2U CN209402723U (en) | 2019-08-05 | 2019-08-05 | A kind of bone-conduction speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255504.2U CN209402723U (en) | 2019-08-05 | 2019-08-05 | A kind of bone-conduction speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209402723U true CN209402723U (en) | 2019-09-17 |
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ID=67900339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921255504.2U Active CN209402723U (en) | 2019-08-05 | 2019-08-05 | A kind of bone-conduction speaker |
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| CN (1) | CN209402723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112887889A (en) * | 2021-03-29 | 2021-06-01 | 上海力声特医学科技有限公司 | Bone conduction type hearing aid testing device |
| WO2022007040A1 (en) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Microphone |
-
2019
- 2019-08-05 CN CN201921255504.2U patent/CN209402723U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007040A1 (en) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Microphone |
| CN112887889A (en) * | 2021-03-29 | 2021-06-01 | 上海力声特医学科技有限公司 | Bone conduction type hearing aid testing device |
| CN112887889B (en) * | 2021-03-29 | 2022-09-06 | 上海力声特医学科技有限公司 | Bone conduction type hearing aid testing device |
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