CN210694342U - Full-frequency bone conduction loudspeaker - Google Patents
Full-frequency bone conduction loudspeaker Download PDFInfo
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- CN210694342U CN210694342U CN201921692999.5U CN201921692999U CN210694342U CN 210694342 U CN210694342 U CN 210694342U CN 201921692999 U CN201921692999 U CN 201921692999U CN 210694342 U CN210694342 U CN 210694342U
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Abstract
The utility model discloses a full bone conduction loudspeaker of frequency, include: the coil is arranged at the bottom of an inner cavity of the shell; the upper cover is covered at the opening of the shell in a sealing way; the magnet part is suspended in the inner cavity of the shell and comprises a vibrator and a magnet, the vibrator is provided with a first cavity, the magnet is arranged in the first cavity, the magnet is positioned at the center of the inner ring of the coil, and a bulge is arranged on one side of the vibrator, which is far away from the first cavity; and the vibration transmission sheet is arranged in the inner cavity of the shell and is connected with the bulge. This full-frequency bone conduction loudspeaker simple structure is convenient, and the mode that is connected with the arch of pendulum through biography vibration piece increases the vibration range of product, has enlarged the vibrations region of biography vibration piece, and the effectual sensitivity that improves sound and the effect of bass make the bass of product more thick and heavy comfortable, and can reach the advantage that reduces the consumption and improve tone quality.
Description
Technical Field
The utility model relates to an audio frequency propagates technical field, especially relates to a full bone conduction loudspeaker of frequency.
Background
Many earphones on the market now adopt air conduction, and the human ear is inserted or is made into the ear muff type with loudspeaker, can lead to like this: firstly, eardrum of human ear is easy to be damaged, which causes hearing loss; secondly, when the earphone is used, the earphone shields the ears, and the outside sound including dangerous prompt tones cannot be heard, so that accidents are caused.
There are also some earphones that use bone conduction, which is to transmit sound to the inner ear through the skull, and the bone nerve conduction vibrator is a transducer that can directly convert an electronic signal into a mechanical signal. Directly send the sound wave to cochlea inner ear through the vibration, conduction velocity is faster, need not shelter from the earhole when wearing, can hear external prompt tone, avoids some dangerous emergence.
However, the existing bone conduction cannot be as smooth as the sound membrane of the traditional loudspeaker due to the structure and material characteristics of the product, and has poor quality and durability, small vibration amplitude and high power consumption.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least one defect of above-mentioned prior art, the utility model provides a full bone conduction loudspeaker frequently.
The utility model discloses a solve the technical scheme that its problem adopted and be:
a full frequency bone conduction speaker, comprising: the coil is arranged at the bottom of an inner cavity of the shell; the upper cover is covered at the opening of the shell in a sealing way; the magnet part is suspended in the inner cavity of the shell and comprises a vibrator and a magnet, the vibrator is provided with a first cavity, the magnet is arranged in the first cavity, the magnet is positioned at the center of the inner ring of the coil, and a bulge is arranged on one side of the vibrator, which is far away from the first cavity; and the vibration transmission sheet is arranged in the inner cavity of the shell and is connected with the bulge.
The utility model provides a full bone conduction loudspeaker frequently, simple structure is convenient, and the mode that is connected through the arch of biography vibration piece and pendulum increases the range of vibration of product, has enlarged the vibrations region of biography vibration piece, and the effectual sensitivity that improves sound and the effect of bass let the bass of product be heavier comfortable more, and can reach the advantage that reduces the consumption and improve tone quality.
Furthermore, a circular ring support used for fixedly mounting the vibration transmission piece is arranged in the shell, the vibration transmission piece is clamped between the circular ring support and the upper cover, and one end, far away from the vibration transmission piece, of the circular ring support abuts against the bottom of the shell.
Furthermore, a circuit board used for being electrically connected with the coil is arranged at the bottom of the inner cavity of the shell, the coil is fixed on the surface of the circuit board, the circuit board is pressed and fixed at the bottom of the inner cavity of the shell by the annular support, and a through groove used for pushing and ejecting the circuit board is arranged at the bottom of the inner cavity of the shell.
Furthermore, a second cavity is arranged on one side, facing the vibration transmission piece, of the upper cover, and the second cavity is used for providing a vibration space for the vibration transmission piece.
Furthermore, the vibration transmission piece is fixedly connected to one end, far away from the first cavity, of the bulge in a viscose fixation mode, a laser welding mode or an ultrasonic welding mode.
Further, an installation groove is formed in the first cavity, and the magnet is fixed to the installation groove.
Further, the vibrating body is integrally formed with the boss.
Further, the vibrating body is subjected to secondary press forming.
To sum up, the utility model provides a full bone conduction loudspeaker frequently has following technological effect:
1) the vibration amplitude of the product is increased by connecting the vibration transmission piece with the bulge of the vibration body, the vibration area of the vibration transmission piece is enlarged, the sensitivity and the bass effect of sound are effectively improved, the bass of the product is thicker and more comfortable, and the advantages of reducing power consumption and improving tone quality can be achieved;
2) the whole equipment is convenient, will pass through the upper cover and shake piece, ring support, circuit board and support to press and fix to the inner chamber of casing in to reach the fixed effect of equipment, and the logical groove promotion circuit board of accessible casing inner chamber bottom is in order to push out the upper cover, accomplishes the dismantlement, thereby has improved the production efficiency of product, has reduced the degree of difficulty that the product was reprocessed.
Drawings
Fig. 1 is an exploded view of an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the full-band bone conduction speaker shown in fig. 1.
Wherein the reference numerals have the following meanings:
1. an upper cover; 11. a second basin cavity; 2. a housing; 21. a through groove; 3. a magnet; 4. a vibrating body; 41. a first basin cavity; 42. a protrusion; 5. a coil; 6. a vibration transmission sheet; 7. a circular ring support; 8. a circuit board.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 and 2, the utility model discloses a full-frequency bone conduction loudspeaker, including one end open-ended casing 2, closing cap in casing opening part's upper cover 1, unsettled being located magnet portion in the 2 inner chambers of casing and being used for connecting casing 2 shakes piece 6 with the biography of magnet portion. The shell 2 is substantially cylindrical, a coil 5 is arranged at the bottom of an inner cavity of the shell 2, the magnet portion comprises a vibrator 4 and a magnet 3, a first cavity 41 with a downward opening is arranged at the lower end of the vibrator 4, the magnet 3 is arranged in the first cavity 41, the magnet 3 is positioned at the center of an inner ring of the coil 5, a bulge 42 is arranged on one side of the vibrator 4 away from the first cavity 41, the center of the vibration transmission piece 6 is connected with the bulge 42, and the outer edge of the vibration transmission piece 6 is connected with the shell 2.
Specifically, the vibrator 4 is substantially cylindrical, and a lower end surface of the vibrator 4 is recessed inward to form the first cavity 41; the protrusion 42 is substantially cylindrically arranged at the center of the upper end surface of the vibration body 4, the outer diameter of the protrusion 42 is smaller than the outer diameter of the vibration body 4, the vibration transmission piece 6 is substantially in a circular sheet shape, and the center portion of the vibration transmission piece 6 is fixedly connected to one end, away from the first cavity 41, of the protrusion 42 in a viscose fixation mode, a laser welding mode or an ultrasonic welding mode.
In the prior art, the vibration transmission plate 6 is generally fixedly connected to the outer side wall of the vibration body 4, and in order to ensure the vibration amplitude and the vibration region of the vibration transmission plate 6, the outer diameter of the vibration transmission plate 6 is generally larger, so that the outer diameter of the shell 2 is enlarged, which is not beneficial to the miniaturization of the loudspeaker; in order to ensure the in-ear effect of the loudspeaker, the outer diameter of the shell 2 needs to be controlled in a smaller diameter range, so that the outer diameter of the vibration transmission piece 6 has to be controlled, and the existing loudspeaker has the disadvantages of smaller vibration amplitude, higher power consumption, poorer sound sensitivity and bass effect.
The utility model provides a full frequency bone conduction loudspeaker all, with the unsettled arrangement of magnet portion in the inner chamber of casing 2 to the mode that is connected with the protruding 42 of pendulum 4 through biography vibration piece 6 strengthens the range of vibration of product, has enlarged the vibrations region of biography vibration piece, and the effectual sensitivity that improves sound and the effect of bass let the bass of product be more heavy comfortable, and can reach the advantage that reduces the consumption and improve tone quality.
Referring to fig. 2, in the present embodiment, the bottom of the first cavity 41 is recessed toward the protrusion 42 to form a mounting groove for cooperatively fixing the magnet, and the diameter of the mounting groove is smaller than the outer diameter of the protrusion 42, so that the mounting groove can be recessed toward the inside of the protrusion, thereby reducing the overall thickness of the vibrating body 4.
In this embodiment, the vibrating body 4 is integrally formed with the boss 42, and the vibrating body 4 is manufactured and formed by a secondary pressing process, wherein the first cavity 41 is formed by a first pressing, and the boss 42 and the mounting groove are formed by a second pressing.
In this embodiment, the upper cover is substantially cylindrical and is inserted into the outlet of the housing 2, and the upper cover 1 and the housing 2 are in local interference fit, so that the upper cover 1 is fixedly installed at the outlet of the housing 2 in a mortise and tenon manner.
In this embodiment, a circular ring support 7 and a circuit board 8 are further disposed in the inner cavity of the housing 2. The coil 5 is welded to positive and negative electrode pads of the circuit board 8 through a gap of the circuit board 8, the circuit board 8 is approximately in a disc shape and is positioned at the bottom of the inner cavity of the shell 2, and the outer diameter of the circuit board 8 is matched with the inner diameter of the inner cavity of the shell 2; the circular ring support 7 is approximately in a cylindrical shape penetrating vertically, the outer diameter of the circular ring support 7 is matched with the inner diameter of the inner cavity of the shell 2, and the vibration transmission piece 6 is clamped between the circular ring support 7 and the upper cover 1; the lower end of the circular ring support 7 abuts against the circuit board 8 so as to fix the circuit board 8 at the bottom of the inner cavity of the shell 2.
Therefore, when the upper cover 1 is fixed to the housing 2 through riveting, the lower end of the upper cover 1 abuts against the upper end of the vibration transmission piece 6, the lower end of the vibration transmission piece 6 abuts against the upper end of the circular ring support 7, the lower end of the circular ring support 7 abuts against the upper end of the circuit board 8, and the lower end of the circuit board 8 abuts against the bottom of the inner cavity of the housing 2, so that the whole assembling and fixing effect is formed.
In the present embodiment, the bottom of the inner cavity of the housing 2 is provided with a through slot 21 for pushing and ejecting the circuit board 8. Specifically, the through groove 21 is substantially in a circular hole shape, and the diameter of the through groove 21 is smaller than the inner diameter of the circular ring support 7 and larger than the outer diameter of the coil 5, so that the circuit board 8 can be conveniently wired, and meanwhile, a worker can conveniently push the circuit board 8 by using a hand or a tool.
Therefore, when the full-frequency bone conduction speaker needs to be disassembled, the circuit board 8 can be pushed out of the shell 2 by pushing the upper cover 1 through the through groove 21 with hands or tools, and then the vibration transmission piece 6, the annular bracket 7 and the circuit board 8 are taken out in sequence.
Referring to fig. 2, in the present embodiment, in order to provide a vibration space for the vibration transmission plate 6, a second cavity 11 is disposed on a side of the upper cover 1 facing the vibration transmission plate 6. Specifically, the second basin cavity 11 is circular, the diameter of the second basin cavity 11 is equal to the inner diameter of the circular ring support 7, the contact position of the vibration transmission piece 6 and the upper cover 1 is a fixed area, the hollow position of the second basin cavity 11 is a vibration area, and the depth of the second basin cavity 11 can limit the maximum amplitude of the vibration transmission piece 6, so that the parameters of sound transmission of the horn are limited.
The working process of the full-frequency bone conduction loudspeaker is as follows: firstly, an electric signal is sent to the coil 5 through the circuit board 8, the coil 5 converts the electric signal into a regularly changing magnetic field, under the action of the changing magnetic field, the magnet 3 and the vibrating body 4 generate mechanical vibration which changes synchronously with the magnetic field intensity, and the generated mechanical wave is transmitted to auditory organs through the skull by taking the vibrating piece 6 as a vibrating source, so that a wearer can hear sound information.
In other preferred embodiments, the magnet portion further includes a washer piece attached to an end of the magnet 3 away from the first cavity 41. Wherein, the washer piece forms a magnetic gap with the first cavity 41 of the vibrator 4, and provides a uniform magnetic field required by movement for the coil 5. Indeed, with the advancement of the technology, the washer sheet can be omitted without affecting the magnetic field of the magnet portion, and the present invention is not limited as to whether the magnet portion includes the washer sheet.
To sum up, the full-frequency bone conduction loudspeaker provided by the utility model enlarges the vibration amplitude of the product by connecting the vibration transmission sheet 6 with the bulge 42 of the vibration body 4, enlarges the vibration area of the vibration transmission sheet 6, effectively improves the sensitivity and bass effect of sound, makes the bass of the product thicker and more comfortable, and can achieve the advantages of reducing power consumption and improving tone quality; the whole equipment is convenient, will pass through upper cover 1 and shake piece 6, ring support 7, circuit board 8 and support to press and fix to the inner chamber of casing 2 in to reach the fixed effect of equipment, and the logical groove 21 of 2 inner chamber bottoms of accessible casing promotes circuit board 8 in order ejecting with upper cover 1, accomplishes the dismantlement, thereby has improved the production efficiency of product, has reduced the degree of difficulty that the product was reprocessed.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (8)
1. A full frequency bone conduction speaker, comprising:
the coil comprises a shell (2) with an opening at one end, wherein a coil (5) is arranged at the bottom of an inner cavity of the shell (2);
the upper cover (1) is covered at the opening of the shell (2);
the magnet part is suspended in the inner cavity of the shell (2) and comprises a vibrator (4) and a magnet (3), the vibrator (4) is provided with a first cavity (41), the magnet (3) is arranged in the first cavity (41), the magnet (3) is positioned at the center of the inner ring of the coil (5), and a protrusion (42) is arranged on one side, away from the first cavity (41), of the vibrator (4);
and the vibration transmission sheet (6) is arranged in the inner cavity of the shell (2), and the vibration transmission sheet (6) is connected with the bulge (42).
2. The full-frequency bone conduction horn according to claim 1, wherein a circular ring support (7) for fixedly mounting the vibration transmission plate (6) is arranged in the housing (2), the vibration transmission plate (6) is clamped between the circular ring support (7) and the upper cover (1), and one end of the circular ring support (7) far away from the vibration transmission plate (6) is abutted to the bottom of the housing (2).
3. The full-frequency bone conduction speaker according to claim 2, wherein a circuit board (8) for electrically connecting the coil (5) is disposed at the bottom of the inner cavity of the housing (2), the coil (5) is fixed on the surface of the circuit board (8), the circuit board (8) is pressed and fixed at the bottom of the inner cavity of the housing (2) by the ring support (7), and a through groove (21) for pushing and ejecting the circuit board (8) is disposed at the bottom of the inner cavity of the housing (2).
4. The full-frequency bone conduction loudspeaker according to claim 2, wherein a second cavity (11) is arranged on one side of the upper cover (1) facing the vibration transmission sheet (6), and the second cavity (11) is used for providing a vibration space for the vibration transmission sheet (6).
5. The full-band bone conduction horn according to claim 1, wherein the vibration transmission sheet (6) is fixedly connected to one end of the bulge (42) far away from the first cavity (41) by means of glue fixation, laser welding or ultrasonic welding.
6. The full-frequency bone conduction speaker according to claim 1, wherein an installation groove is provided on the first cavity (41), and the magnet (3) is fixed on the installation groove.
7. The full band bone conduction horn according to claim 6, wherein the vibration body (4) is integrally formed with the boss (42).
8. The full-band bone conduction horn according to claim 7, wherein the vibration body (4) is double-stamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921692999.5U CN210694342U (en) | 2019-10-10 | 2019-10-10 | Full-frequency bone conduction loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921692999.5U CN210694342U (en) | 2019-10-10 | 2019-10-10 | Full-frequency bone conduction loudspeaker |
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| Publication Number | Publication Date |
|---|---|
| CN210694342U true CN210694342U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921692999.5U Active CN210694342U (en) | 2019-10-10 | 2019-10-10 | Full-frequency bone conduction loudspeaker |
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| Country | Link |
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| CN (1) | CN210694342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU205467U1 (en) * | 2020-08-03 | 2021-07-15 | Публичное акционерное общество "Октава" | BONE TELEPHONE CAPSULE |
| CN113271513A (en) * | 2021-05-10 | 2021-08-17 | 苏州索迩电子技术有限公司 | Bone conduction sound generating device and wearable equipment |
-
2019
- 2019-10-10 CN CN201921692999.5U patent/CN210694342U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU205467U1 (en) * | 2020-08-03 | 2021-07-15 | Публичное акционерное общество "Октава" | BONE TELEPHONE CAPSULE |
| CN113271513A (en) * | 2021-05-10 | 2021-08-17 | 苏州索迩电子技术有限公司 | Bone conduction sound generating device and wearable equipment |
| CN113271513B (en) * | 2021-05-10 | 2023-02-17 | 苏州索迩电子技术有限公司 | Bone conduction sound generating device and wearable equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210706 Address after: 518100 workshop 401, Jiaan Science Park, No.2, Longchang Road, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Qiyuan XunTong Technology Co.,Ltd. Address before: 518100 4th floor, No.2 factory building, jia'an Science Park, Liuxian 1st Road, 67 District, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN QIYUAN DIGITAL TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |