CN217849669U - Bone conduction loudspeaker - Google Patents
Bone conduction loudspeaker Download PDFInfo
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- CN217849669U CN217849669U CN202222157821.9U CN202222157821U CN217849669U CN 217849669 U CN217849669 U CN 217849669U CN 202222157821 U CN202222157821 U CN 202222157821U CN 217849669 U CN217849669 U CN 217849669U
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Abstract
The utility model discloses a bone conduction speaker, include: the transmission shell comprises a transmission shell and a vibrating diaphragm positioned on the upper end surface of the transmission shell, and an accommodating space is formed between the transmission shell and the vibrating diaphragm; the magnetic assembly is positioned in the accommodating space, and a magnetic gap is formed between the magnetic assembly and the conductive shell; the voice coil is arranged on the upper end surface of the magnetic assembly, and the side wall of the voice coil is positioned in the magnetic gap; the elastic component comprises a first elastic piece and a second elastic piece which are respectively arranged at the upper end and the lower end of the magnetic component, wherein the thickness of the first elastic piece is 0.05-0.08mm, the thickness of the second elastic piece is 0.1-0.2mm, or the thickness of the first elastic piece is 0.1-0.2mm, the thickness of the second elastic piece is 0.05-0.01mm, and the voice coil is connected with the first elastic piece, so that when the voice coil is electrified, the first elastic piece, the second elastic piece and the magnetic component vibrate together.
Description
Technical Field
The utility model relates to an acoustics conversion technical field, more specifically relate to a bone conduction speaker.
Background
Bone conduction is a sound conduction mode, namely, the sound is converted into mechanical vibration with different frequencies, sound waves are transmitted through the skull, the bone labyrinth, the lymph transmission of the inner ear, the spiral organ, the auditory nerve and the auditory center of a person, compared with the classical sound conduction mode of generating the sound waves through the vibrating diaphragm, the bone conduction omits a plurality of sound wave transmission steps, clear sound restoration can be realized in a noisy environment, and the sound waves can not influence other people due to diffusion in the air.
The bone conduction speaker is a novel electroacoustic conversion device developed based on the sound conduction mode of bone conduction, and can convert an electric signal into a mechanical vibration signal, and transmit the vibration signal into a cochlea through human tissues and bones, so that a user can hear sound, and the eardrum of people can not be damaged due to clear bone conduction sound without being influenced by the external environment, and therefore the bone conduction speaker is widely applied to the fields of earphones and the like. However, the current bone conduction speaker is generally worn in front of the ear through an ear hoop and conducted to the auditory nerve through the ear bone, the U-shaped iron and the magnet are mounted inside, the single or double spring pieces are mounted in the gap of the magnet, and vibration is generated between the spring pieces, so that the transmitted sound is single, and is biased to middle and high tones or biased to middle and high tones.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a do benefit to bone conduction speaker of different audio frequency sound wave transmission is provided.
In order to solve the technical problem, the utility model provides a bone conduction speaker, include:
the transmission shell comprises a transmission shell and a vibrating diaphragm positioned on the upper end surface of the transmission shell, and an accommodating space is formed between the transmission shell and the vibrating diaphragm;
the magnetic assembly is positioned in the accommodating space, and a magnetic gap is formed between the magnetic assembly and the conductive shell;
the voice coil is arranged on the upper end surface of the magnetic assembly, and the side wall of the voice coil is positioned in the magnetic gap;
the elastic assembly comprises a first elastic piece and a second elastic piece which are respectively arranged at the upper end and the lower end of the magnetic assembly, wherein the thickness of the first elastic piece is 0.05-0.01mm, the thickness of the second elastic piece is 0.1-0.2mm, or the thickness of the first elastic piece is 0.1-0.2mm, the thickness of the second elastic piece is 0.05-0.01mm, and the voice coil is connected with the first elastic piece, so that when the voice coil is electrified, the first elastic piece and the second elastic piece vibrate together with the magnetic assembly.
The further technical scheme is as follows: be provided with the through-hole on the first elastic component, the voice coil loudspeaker voice coil tip wears to establish the through-hole and is connected with first elastic component.
The further technical scheme is as follows: the magnetic assembly comprises an annular magnet positioned in the accommodating space and a magnetizer positioned in the annular magnet.
The further technical scheme is as follows: the first resilient member is made of steel and the second resilient member is made of copper.
The further technical scheme is as follows: the first resilient member is made of copper and the second resilient member is made of steel.
The further technical scheme is as follows: the bone conduction speaker further includes an outer housing surrounding the conductive housing.
Compared with the prior art, the utility model discloses well elastic component includes two elastic components of first elastic component and second elastic component, and first elastic component and second elastic component install respectively in magnetic component's upper and lower both ends, the voice coil loudspeaker voice coil produces the vibration in the magnetic field during the circular telegram, first elastic component and second elastic component vibrate with magnetic component jointly, first elastic component and second elastic component thickness are different, can produce the vibration of different frequency channels, the thickness of first elastic component can produce the vibration of low frequency channel when being 0.05-0.01mm, the thickness of second elastic component is 0.1-0.2mm this moment, can produce the vibration of high frequency channel, and can produce high-frequency vibration when the thickness of first elastic component is 0.1-0.2mm, the thickness of second elastic component is 0.05-0.01mm this moment, can produce low-frequency vibration, and because first elastic component and second elastic component are located the magnetic component both ends, then middle vibration can be along with the elastic component together along with the elastic component, because the combination of two kinds of different frequency channels is the audio frequency channel all great low frequency, whole low frequency sound frequency transmission can be all known, and whole high sound quality can not be improved simultaneously, and whole mixed the utility model is not favorable to the audio frequency.
Drawings
Fig. 1 is a schematic cross-sectional view of an embodiment of the bone conduction speaker of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an embodiment of a bone conduction speaker 10 according to the present invention. In the embodiment shown in the figures, the bone conduction speaker 10 comprises a conductive housing, a magnetic assembly 12, a voice coil 13, and a resilient assembly 14; the conductive shell comprises a conductive shell and a vibrating diaphragm 112 positioned on the upper end surface of the conductive shell, and an accommodating space is formed between the conductive shell and the vibrating diaphragm 112; the magnetic component 12 is positioned in the accommodating space, and a magnetic gap 16 is formed between the magnetic component and the conductive shell; the voice coil 13 is mounted on the upper end surface of the magnetic component 12, and the side wall is located in the magnetic gap 16; the elastic component 14 includes a first elastic member 141 and a second elastic member 142 respectively mounted at the upper and lower ends of the magnetic component 12, wherein the thickness of the first elastic member 141 is 0.05-0.08mm, the thickness of the second elastic member 142 is 0.1-0.2mm, or the thickness of the first elastic member is 0.1-0.2mm, the thickness of the second elastic member is 0.05-0.01mm, and a through hole 1411 is provided on the first elastic member 141, and the end of the voice coil 13 penetrates through the through hole 1411 and is connected with the first elastic member 141, so that when the voice coil is powered on, the first elastic member 141 and the second elastic member 142 vibrate together with the magnetic component 12. Based on the above design, because of the different thickness of first elastic component 141 and second elastic component 142, can produce the vibration of different frequency channels, in operation, voice coil 13 circular telegram, produce the vibration in the magnetic field, the frequency response scope and the tone quality of bone conduction speaker 10 can receive the influence of vibration system, because magnetic component 12 is between first elastic component 141 and second elastic component 142, then elastic component 14 vibrates with magnetic component 12 jointly, do benefit to different audio frequency combination, because the combination of two kinds of different frequency channels promotes whole audio frequency greatly, high frequency and low frequency all have, can all mix very thickly simultaneously high and low audio frequency at the during operation, and can improve whole frequency width and tone quality, and the user can set up the thickness of first elastic component 141 and second elastic component 142 according to actual demand.
In some embodiments, the magnetic assembly 12 includes a ring magnet 121 positioned within the receiving space and a magnetizer 122 positioned within the ring magnet 121. Understandably, the ring magnet 121 and the magnetizer 122 may be magnets made of alloy permanent magnet materials including but not limited to neodymium iron boron, samarium cobalt, alnico, iron chromium cobalt, aluminum iron boron, and iron carbon aluminum or ferrite permanent magnet materials including but not limited to barium ferrite, iron ferrite, manganese ferrite, and lithium manganese ferrite. Based on the above design, the gap between the ring magnet 121 and the magnetizer 122 is also a magnetic gap in which a strong magnetic field strength can be formed.
In some embodiments, the first resilient member 141 is made of steel and the second resilient member 142 is made of copper. Preferably, the first elastic member 141 and the second elastic member 142 are made of different materials and are matched with each other. Understandably, in certain other embodiments, the second elastic member 142 may be made of steel and the first elastic member 141 may be made of copper.
Further, in this embodiment, the conductive shell includes an outer shell 15, a cover 17, a first fixing portion 18 located between the cover 17 and the outer shell 15 for fixing the first elastic member 141, and a second fixing portion 19 located on the inner surface of the outer shell 15 for fixing the second elastic member 142, and the diaphragm 112 is located between the cover 17 and the first fixing portion 18.
To sum up, the middle elastic component of the utility model comprises two elastic components, namely a first elastic component and a second elastic component, wherein the first elastic component and the second elastic component are respectively arranged at the upper end and the lower end of the magnetic component, the voice coil vibrates in the magnetic field when the voice coil is electrified, the first elastic component, the second elastic component and the magnetic component vibrate together, the first elastic component and the second elastic component have different thicknesses and can generate vibration in different frequency bands, the first elastic component can generate vibration in low frequency bands when the thickness of the first elastic component is 0.05-0.01mm, the second elastic component can generate vibration in high frequency bands when the thickness of the second elastic component is 0.1-0.2mm, and can produce high-frequency vibration when the thickness of first elastic component is 0.1-0.2mm, the thickness of second elastic component is 0.05-0.01mm this moment, can produce low-frequency vibration, and because first elastic component and second elastic component are located the magnetic component both ends, then middle magnetic circuit can vibrate along with the elastic component during vibration, because the combination of two kinds of different frequency channels is great promotion of whole audio frequency, high frequency low frequency all has, can know, the utility model discloses bone conduction speaker does benefit to different audio frequency combinations, and the high-low audio frequency all mixes thickly simultaneously at the during operation, and can improve whole frequency width and tone quality.
The foregoing is considered as illustrative of the preferred embodiments of the invention, and not as limiting the invention in any way. Various equivalent changes and modifications can be made on the basis of the above embodiments by those skilled in the art, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.
Claims (5)
1. A bone conduction speaker, comprising:
the transmission shell comprises a transmission shell and a vibrating diaphragm positioned on the upper end surface of the transmission shell, and an accommodating space is formed between the transmission shell and the vibrating diaphragm;
the magnetic assembly is positioned in the accommodating space, and a magnetic gap is formed between the magnetic assembly and the conductive shell;
the voice coil is arranged on the upper end surface of the magnetic assembly, and the side wall of the voice coil is positioned in the magnetic gap;
the elastic assembly comprises a first elastic piece and a second elastic piece which are respectively arranged at the upper end and the lower end of the magnetic assembly, wherein the thickness of the first elastic piece is 0.05-0.01mm, the thickness of the second elastic piece is 0.1-0.2mm, or the thickness of the first elastic piece is 0.1-0.2mm, the thickness of the second elastic piece is 0.05-0.01mm, and the voice coil is connected with the first elastic piece, so that when the voice coil is electrified, the first elastic piece and the second elastic piece vibrate together with the magnetic assembly.
2. The bone conduction speaker of claim 1, wherein: the voice coil is characterized in that a through hole is formed in the first elastic piece, and the end portion of the voice coil penetrates through the through hole and is connected with the first elastic piece.
3. The bone conduction speaker of claim 1, wherein: the magnetic assembly comprises an annular magnet positioned in the accommodating space and a magnetizer positioned in the annular magnet.
4. The bone conduction speaker of claim 1, wherein: the first resilient member is made of steel and the second resilient member is made of copper.
5. The bone conduction speaker of claim 1, wherein: the first resilient member is made of copper and the second resilient member is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222157821.9U CN217849669U (en) | 2022-08-16 | 2022-08-16 | Bone conduction loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222157821.9U CN217849669U (en) | 2022-08-16 | 2022-08-16 | Bone conduction loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217849669U true CN217849669U (en) | 2022-11-18 |
Family
ID=84013899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222157821.9U Active CN217849669U (en) | 2022-08-16 | 2022-08-16 | Bone conduction loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217849669U (en) |
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2022
- 2022-08-16 CN CN202222157821.9U patent/CN217849669U/en active Active
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