CN210469730U - Bone conduction speaker, bone conduction earphone and bone conduction hearing aid - Google Patents
Bone conduction speaker, bone conduction earphone and bone conduction hearing aid Download PDFInfo
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- CN210469730U CN210469730U CN201921676534.0U CN201921676534U CN210469730U CN 210469730 U CN210469730 U CN 210469730U CN 201921676534 U CN201921676534 U CN 201921676534U CN 210469730 U CN210469730 U CN 210469730U
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- conduction speaker
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Abstract
The utility model discloses a bone conduction speaker, bone conduction earphone and bone conduction audiphone. The bone conduction speaker described above includes: a magnetic component; a voice coil; the elastic assembly comprises a first elastic piece and a second elastic piece, the first elastic piece and the second elastic piece are respectively arranged at two opposite ends of the magnetic assembly, and the voice coil is electrically connected to the first elastic piece or the second elastic piece; a conductive element connected to the second resilient element; the supporting component is respectively connected with the first elastic piece and the second elastic piece, a magnetic gap is formed between the magnetic assembly and the supporting component, and the voice coil is arranged in the magnetic gap; when the vibration-damping device works, the elastic component and the magnetic component vibrate together; the bone conduction earphone or the bone conduction hearing aid comprises the bone conduction speaker. The utility model discloses a bone conduction speaker, the volume can be done for a short time, be favorable to the low frequency sound wave transmission.
Description
Technical Field
The utility model relates to a speaker technical field, concretely relates to bone conduction speaker, bone conduction earphone and bone conduction audiphone.
Background
Bone conduction is a sound conduction mode, namely, sound is converted into mechanical vibration with different frequencies, and sound waves are transmitted through the skull, the bone labyrinth, the lymph fluid transmission of the inner ear, the spiral organ, the auditory nerve and the auditory center of a human body. Compared with a classical sound conduction mode of generating sound waves through a vibrating diaphragm, the bone conduction mode omits a plurality of sound wave transmission steps, can realize clear sound restoration in a noisy environment, and does not influence other people due to the fact that the sound waves are diffused in the air.
The bone conduction speaker technology is used for receiving, sound waves (vibration signals) converted from electric signals are directly transmitted to auditory nerves through bones, and transmission media of the sound waves (vibration signals) are different.
Present bone conduction speaker is generally worn to the ear through the ear hoop before, through bone conduction to the people ear before the ear in, inside is with U iron and magnet installation back, and the shell fragment dress produces vibration between the shell fragment in the clearance of magnet, and this kind of vibration is unfavorable for the transmission of low frequency sound wave, causes the low frequency sound wave to go into ear effect poor. The existing wearing mode is usually large in size, and if the loudspeaker is made to be miniature, the size of the magnet is reduced, and the sound wave transmission effect is also poor.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need for a bone conduction speaker that is small in size and facilitates low frequency sound wave transmission.
The utility model also provides a bone conduction earphone.
The utility model also provides a bone conduction audiphone.
In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:
a bone conduction speaker, comprising:
a magnetic component;
a voice coil;
the elastic assembly comprises a first elastic piece and a second elastic piece, the first elastic piece and the second elastic piece are respectively arranged at two opposite ends of the magnetic assembly, and the voice coil is electrically connected to the first elastic piece or the second elastic piece;
a conductive element connected to the second resilient element; and
the supporting component is respectively connected with the first elastic piece and the second elastic piece, a magnetic gap is formed between the magnetic assembly and the supporting component, and the voice coil is installed in the magnetic gap;
when the vibration-proof magnetic component works, the elastic component and the magnetic component vibrate together.
According to the bone conduction loudspeaker, the elastic pieces are directly arranged at the two ends of the magnetic component, so that the magnetic component is not surrounded by the elastic pieces, when the volume of the whole loudspeaker is reduced, the influence on the volume of the magnetic component is small, and when the volume of the whole loudspeaker is reduced, the transmission effect of sound waves is not influenced; when vibrating, the elastic parts are arranged at the two ends, and the middle magnetic circuit vibrates along with the elastic parts, so that the response of low-frequency sound waves is facilitated, and the sound quality of the low-frequency sound waves entering ears is improved.
In some embodiments, the magnetic assembly is provided with a through hole.
In some embodiments, the bone conduction speaker further includes a circuit board connected to the voice coil, the circuit board is electrically connected to the first elastic member through a conductive member, and the conductive member is accommodated in the through hole.
In some embodiments, the magnetic assembly includes at least a first magnetic member and a second magnetic member connected to one end of the first magnetic member, and the first magnetic member, the second magnetic member and the supporting member form the magnetic gap therebetween; the first elastic piece is arranged at one end, far away from the first magnetic piece, of the second magnetic piece, and the second elastic piece is arranged at a position, close to the end, far away from the second magnetic piece, of the first magnetic piece.
In some embodiments, the magnetic assembly further includes a magnetic conducting member connected to an end of the first magnetic member away from the second magnetic member, the first magnetic member, the second magnetic member, the magnetic conducting member and the supporting member form the magnetic gap therebetween, and the second elastic member is mounted at a position close to the magnetic conducting member.
In some embodiments, the bone conduction speaker further comprises a circuit board electrically connected to the voice coil, and the circuit board is electrically connected to the second elastic member.
In some embodiments, the bone conduction speaker further includes a conductive block, a gap is formed between the second elastic element and the circuit board, the conductive block connects the conductive element, the second elastic element and the circuit board, and the second elastic element is electrically connected to the circuit board through the conductive block.
In some embodiments, the conductive block includes a positioning block and a conductive member installed in the positioning block, the positioning block is respectively connected to the second elastic member, the circuit board and the conductive member, and the conductive member is respectively electrically connected to the second elastic member and the circuit board; or, the conductive block is made of a conductive material.
In some embodiments, the second elastic member is attached to and electrically connected to the circuit board, and a protrusion protruding in a direction away from the circuit board is disposed at an outer edge of the second elastic member, so that a vibration space is formed between the protrusion and the voice coil.
In some embodiments, the shape of the protruding portion is circular arc or square, the number of the protruding portions is one, two or more, and a plurality of the protruding portions are arranged continuously or at intervals.
In some embodiments, a fixing part for fixing the second elastic piece is arranged on the surface of the outer edge of the second elastic piece away from the supporting part.
In some embodiments, the second elastic member is made of a hard material and houses a circuit element, and the voice coil is connected to the second elastic member and electrically connected to the circuit element.
The utility model also provides a bone conduction earphone, include bone conduction speaker.
The utility model also provides a bone conduction audiphone, include bone conduction speaker.
Drawings
Fig. 1 is a schematic structural diagram of a bone conduction speaker according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bone conduction speaker according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bone conduction speaker according to a third embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
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.
Example one
Referring to fig. 1, the present invention provides a bone conduction speaker 100, including a magnetic assembly 10, a voice coil 20, an elastic assembly 30, a conductive element 40 and a supporting member 50, wherein the magnetic assembly 10 is used for providing a magnetic field, the voice coil 20 is used for being energized to generate vibration in the magnetic field, the elastic assembly 30 includes a first elastic element 31 and a second elastic element 32, the first elastic element 31 and the second elastic element 32 are respectively installed at two opposite ends of the magnetic assembly 10, the voice coil 20 is electrically connected to the first elastic element 31 or the second elastic element 32, the supporting member 50 is respectively connected to the first elastic element 31 and the second elastic element 32, a magnetic gap 11 is formed between the magnetic assembly 10 and the supporting member 50, and the voice coil 20 is installed in the magnetic gap 11. In operation, the resilient member 30 vibrates in conjunction with the magnetic member 10.
In operation, the voice coil 20 is energized to produce vibrations in the magnetic field. The frequency response range and the tone quality of the bone conduction speaker can be influenced by the vibration system, and because the magnetic component 10 is arranged between the elastic components 30, the elastic components 30 and the magnetic component 10 vibrate together, and the vibration mode is favorable for the response of low-frequency sound waves and improves the tone quality of the low-frequency sound waves entering the ear.
In addition, because the elastic members are directly installed at the two ends of the magnetic assembly 10, the magnetic assembly 10 is not surrounded by the elastic members, when the volume of the whole speaker is reduced, the volume of the magnetic assembly 10 can be increased or unchanged, the influence on the volume of the magnetic assembly 10 is small, and the transmission effect of sound waves is not influenced when the volume of the whole speaker is reduced.
Wherein, the magnetic component 10 is provided with a through hole 120. The provision of the through-hole 120 facilitates dissipation of heat generated during vibration. And, when the voice coil 20 is electrically connected to the first elastic member 31, the voice coil 20 is connected to the first elastic member 31 through a conductive member that can be pulled to the first elastic member 31 by the through hole 120. So that the voice coil 20 can be connected to the first elastic member 31 or the second elastic member 32. When the voice coil 20 is electrically connected to the first elastic member 31, it is convenient to solder an external circuit to energize the voice coil 20, and such a soldering structure can reduce distortion, enhance air compliance, and improve the overall speaker effect.
The magnetic assembly 10 at least includes a first magnetic member 12 and a second magnetic member 13 connected to one end of the first magnetic member 12, and the magnetic gap 11 is formed between the first magnetic member 12, the second magnetic member 13 and the supporting member 50. The first magnetic member 12 and the second magnetic member 13 are connected in such a manner that the elastic members can be conveniently installed at both ends of the magnetic assembly 10 without affecting the cooperation of the magnetic circuit and the voice coil.
Wherein, the first magnetic member 12 is in a ring shape. The second magnetic member 13 is T-shaped, and two opposite sides of the second magnetic member 13 are connected to the first magnetic member 12, and the middle of the second magnetic member is connected to the first elastic member 31.
Of course, the first magnetic member 12 and the second magnetic member 13 may have other shapes.
One of the first magnetic member 12 and the second magnetic member 13 is a magnet, and the other is a magnet or a metal capable of generating magnetic attraction with the magnet. For example, the first magnetic member 12 is a magnet, the second magnetic member 13 is a metal iron, or the first magnetic member 12 is a metal iron, and the second magnetic member 13 is a magnet, or both the first magnetic member 12 and the second magnetic member 13 are magnets, which can achieve the purpose of generating a magnetic circuit.
Of course, the magnetic assembly 10 may also include three or more magnetic members, as long as the first elastic member 31 and the second elastic member 32 are ensured to be located at two ends of the magnetic assembly 10. Of course, there is a tendency to select fewer magnetic members to form the magnetic assembly 10, so that the overall connection structure is more stable.
Further, the magnetic assembly 10 further includes a magnetic conductive member 14 connected to an end of the first magnetic member 12 away from the second magnetic member 13, wherein the magnetic conductive member 14 is connected to an end of the first magnetic member 12 away from the second magnetic member 13 for conducting magnetic. The second elastic member 32 is mounted at a position close to the magnetic conductive member 14. For example, the magnetic conductive member 14 is washer.
The first magnetic member 12 has a first through hole, the second magnetic member 13 has a second through hole, and the magnetic conductive member 14 has a third through hole, wherein the first through hole, the second through hole, and the third through hole together form the through hole 120.
The voice coil 20 cuts magnetic lines of force to generate electromotive force, and the shape, structure, and material thereof are not limited as long as the function can be achieved.
The voice coil 20 is located in the magnetic gap 11, which is a space surrounded by the first magnetic material 12, the second magnetic material 13, and the support member 50. Therefore, the whole loudspeaker forms a whole body, and the shell is convenient to install in the later period.
The bone conduction speaker 100 further includes a circuit board 21, and the voice coil 20 is electrically connected to the first elastic member 31 or the second elastic member 32 through the circuit board 21. Thereby enhancing the stability of the electrical connection. The circuit board 21 may be a PCB, or a circuit-embedded rubber plate, a metal plate, etc., and may function to electrically connect the voice coil 20, the first elastic member 31, or the second elastic member 32.
When the voice coil 20 is electrically connected to the first elastic member 31 through the circuit board 21, the circuit board 21 is connected to the first elastic member 31 through a conductive member that can be pulled to the first elastic member 31 by the through hole 120.
The first elastic member 31 and the second elastic member 32 are both steel plates or plastics with built-in circuits. Alternatively, the first elastic member 31 and the second elastic member 32 may be conductive metal sheets, and both may play a role of transmitting vibration.
The first elastic element 31 is installed at an end of the second magnetic element 13 far away from the first magnetic element 12, and the second elastic element 32 is installed at a position close to an end of the first magnetic element 12 far away from the second magnetic element 13 or a position of the magnetic conductive element 14 far away from an end of the second magnetic element 13. Such a structure makes the voice coil 20 have a large vibration space and ensures the stability of the entire vibration of the magnetic circuit.
In this embodiment, a gap is formed between the second elastic member 32 and the circuit board 21. This allows room for the vibration of the second elastic member 32, which improves the sound quality of the speaker and reduces distortion.
When the voice coil 20 is electrically connected to any one of the first elastic member 31 and the second elastic member 32, the electrically connected first elastic member 31 or second elastic member 32 is provided with a pad for electrical connection with an external circuit, so that the entire speaker is electrically conducted.
In one embodiment, in order to facilitate connection of an external circuit, when the second elastic member 32 is electrically connected to the voice coil 20, the circuit of the second elastic member 32 may be led to the first elastic member 31, and a pad or a circuit board may be disposed through the first elastic member 31 to connect the external circuit. For example, the circuit of the second elastic member 32 is wound to the first elastic member 31 through the support member 50.
The conductive member 40 is an element for vibration conduction of sound, which is connected to the second elastic member 32, and when the second elastic member 32 vibrates, the vibration is transmitted to the conductive member 40. The conductive element 40 may be a piezoelectric ceramic sheet, a PC conductive sheet, or other conductive elements.
The supporting member 50 is used for supporting the first elastic member 31 and the second elastic member 32, and providing support so that they do not deform greatly, so that the magnetic circuit system can generate vibration together to ensure the stability of the structure. The support member 50 may be made of, for example, plastic, iron, low carbon steel, or the like. The connection between the supporting member 50 and the first and second elastic members 31 and 32 can be made by gluing, connecting members, etc.
The support member 50 is generally annular in shape to facilitate cooperation with the above-described structure.
Further, the bone conduction speaker 100 further includes a conductive block 60, the conductive block 60 connects the conductive element 40, the second elastic element 32 and the circuit board 21, and the second elastic element 32 is electrically connected to the circuit board 21 through the conductive block 60. The second elastic member 32 can be electrically conducted without contacting the circuit board 21 by the conductive block 60.
The conductive manner of the conductive block 60 may be set as required, and the conductive block itself may be conductive, or may be conductive by setting a conductive member. For example, the conductive block 60 includes a positioning block and a conductive member installed in the positioning block, and the positioning block is connected to the second elastic member 32, the circuit board 21 and the conductive member 40, respectively. Alternatively, the conductive block 60 is made of a conductive material, and the conductive block 60 is directly contact-electrically connected to the second elastic member 32 and the circuit board 21.
In an embodiment, the conductive member is a conductive spring.
The bone conduction speaker 100 may further include a housing that covers the above components so that the entire speaker may directly contact the human body. The shell can be provided with a sound diffusion hole.
Example two
Referring to fig. 2, the bone conduction speaker 200 of the present embodiment is basically the same as the first embodiment in structure, except that: the second elastic member 32 is directly attached and electrically connected to the circuit board 21 without the conductive block 60, and a protrusion 33 protruding away from the circuit board 21 is provided at an outer edge of the second elastic member 32, so that a vibration space is formed between the protrusion 33 and the voice coil 20. This leaves sufficient space for the magnetic circuit system to vibrate.
The shape of the convex portion 33 is circular arc or square, the number of the convex portions 33 is one, two or more, and the convex portions 33 can be arranged continuously or at intervals. The size of the projection 33 may also be set as desired.
For example, a plurality of protrusions 33 having a circular arc shape are provided at intervals, wherein one or more of the protrusions 33 correspond to the position of the voice coil 20.
The outer edge of the second elastic member 32 is connected to the support member 50.
The side of the outer edge of the second elastic member 32 remote from the support member 50 is provided with a fixing member 70 for fixing the outer edge of the second elastic member 32. The fixing part 70 can further fix the outer edge of the second elastic member 32, and ensure that the second elastic member 32 does not fall off the fixing part 70 during the vibration.
For example, the fixing member 70 is a pressure ring. The material of the pressing ring may be the same as that of the support member 50, and the pressing ring may be, for example, a copper ring.
EXAMPLE III
Referring to fig. 3, the bone conduction speaker 300 of the present embodiment is basically the same as the first embodiment in structure, except that: the second elastic member 32 is made of a hard material and houses circuit elements, without the conductive block 60 and the circuit board 21, and the voice coil 20 is connected to the second elastic member 32 and electrically connected to the circuit elements, so that the voice coil 20 can be directly electrically conducted to the second elastic member 32. In this case, the conductive block 60 and the circuit board 21 are not required, the structure of the entire speaker is simpler, and magnetic circuit vibration can be realized.
For example, the first elastic member 31 and the second elastic member 32 are both steel plates or plastics with built-in circuits.
The middle portion of the magnetic assembly 10 may be provided with a through hole 120, or may not be provided with the through hole 120, and fig. 3 shows the case where the through hole 120 is not provided.
Example four
The present embodiment provides a bone conduction headset, which includes the bone conduction speaker according to any one of the first to third embodiments. This bone conduction speaker installs back in the bone conduction earphone for bone conduction earphone can be done less, and tone quality is better moreover.
EXAMPLE five
The present embodiment provides a bone conduction hearing aid including the bone conduction speaker according to any one of the first to third embodiments. After the bone conduction loudspeaker is installed in the bone conduction hearing aid, the bone conduction hearing aid can be made smaller, and the sound quality is better.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (14)
1. A bone conduction speaker, comprising:
a magnetic component;
a voice coil;
the elastic assembly comprises a first elastic piece and a second elastic piece, the first elastic piece and the second elastic piece are respectively arranged at two opposite ends of the magnetic assembly, and the voice coil is electrically connected to the first elastic piece or the second elastic piece;
a conductive element connected to the second resilient element; and
the supporting component is respectively connected with the first elastic piece and the second elastic piece, a magnetic gap is formed between the magnetic assembly and the supporting component, and the voice coil is installed in the magnetic gap;
when the vibration-proof magnetic component works, the elastic component and the magnetic component vibrate together.
2. The bone conduction speaker of claim 1, wherein the magnetic component defines a through hole.
3. The bone conduction speaker of claim 2, further comprising a circuit board coupled to the voice coil, the circuit board being electrically coupled to the first resilient member through a conductive member, the conductive member being received in the through hole.
4. The bone conduction speaker as claimed in claim 1 or 2, wherein the magnetic assembly comprises at least a first magnetic member and a second magnetic member connected to one end of the first magnetic member, the second magnetic member and the support member forming the magnetic gap therebetween; the first elastic piece is arranged at one end, far away from the first magnetic piece, of the second magnetic piece, and the second elastic piece is arranged at a position, close to the end, far away from the second magnetic piece, of the first magnetic piece.
5. The bone conduction speaker of claim 4, wherein the magnetic assembly further comprises a magnetic conducting member connected to an end of the first magnetic member away from the second magnetic member, the first magnetic member, the second magnetic member, the magnetic conducting member and the supporting member form the magnetic gap therebetween, and the second elastic member is mounted at a position close to the magnetic conducting member.
6. The bone conduction speaker of claim 1, further comprising a circuit board electrically connected to the voice coil, the circuit board electrically connected to the second spring.
7. The bone conduction speaker of claim 6, further comprising a conductive block, wherein a gap is provided between the second elastic member and the circuit board, the conductive block connects the conductive member, the second elastic member and the circuit board, and the second elastic member is electrically connected to the circuit board through the conductive block.
8. The bone conduction speaker according to claim 7, wherein the conductive block includes a positioning block and a conductive member mounted in the positioning block, the positioning block is respectively connected to the second elastic member, the circuit board and the conductive member, and the conductive member is respectively electrically connected to the second elastic member and the circuit board; or, the conductive block is made of a conductive material.
9. The bone conduction speaker as claimed in claim 6, wherein the second elastic member is attached to and electrically connected to the circuit board, and a protrusion protruding away from the circuit board is provided at an outer edge of the second elastic member so that a vibration space is formed between the protrusion and the voice coil.
10. The bone conduction speaker as claimed in claim 9, wherein the projections are circular arc-shaped or square-shaped, the number of the projections is one, two or more, and a plurality of the projections are provided continuously or at intervals.
11. The bone conduction speaker as claimed in claim 9 or 10, wherein a face of the outer edge of the second elastic member remote from the support member is provided with a fixing member for fixing the second elastic member.
12. The bone conduction speaker as claimed in claim 1 or 2, wherein the second elastic member is made of a hard material and houses a circuit element, and the voice coil is connected to the second elastic member and electrically connected to the circuit element.
13. A bone conduction headset characterized by comprising the bone conduction speaker of any one of claims 1-12.
14. A bone conduction hearing aid comprising the bone conduction speaker according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676534.0U CN210469730U (en) | 2019-09-30 | 2019-09-30 | Bone conduction speaker, bone conduction earphone and bone conduction hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676534.0U CN210469730U (en) | 2019-09-30 | 2019-09-30 | Bone conduction speaker, bone conduction earphone and bone conduction hearing aid |
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| Publication Number | Publication Date |
|---|---|
| CN210469730U true CN210469730U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921676534.0U Expired - Fee Related CN210469730U (en) | 2019-09-30 | 2019-09-30 | Bone conduction speaker, bone conduction earphone and bone conduction hearing aid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708646A (en) * | 2019-09-30 | 2020-01-17 | 东莞市赞歌声学科技有限公司 | Bone conduction speaker, bone conduction earphone and bone conduction hearing aid |
-
2019
- 2019-09-30 CN CN201921676534.0U patent/CN210469730U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708646A (en) * | 2019-09-30 | 2020-01-17 | 东莞市赞歌声学科技有限公司 | Bone conduction speaker, bone conduction earphone and bone conduction hearing aid |
| WO2021063113A1 (en) * | 2019-09-30 | 2021-04-08 | 朱达云 | Bone conduction loudspeaker, bone conduction earphone, and bone conduction hearing aid |
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Granted publication date: 20200505 |