Bone conduction speakers, bone conduction headphones and bone conduction hearing aids

Abstract

The present invention discloses a bone conduction speaker, a bone conduction earphone and a bone conduction hearing aid. The above-mentioned bone conduction speaker includes: a magnetic component, the magnetic component includes a first magnetic part and a second magnetic part, a through hole is provided in the middle of the first magnetic part, and the second magnetic part passes through the through hole, so that a magnetic gap is formed between the first magnetic part and the second magnetic part on opposite sides of the through hole; a voice coil, the voice coil is installed in the magnetic gap; a vibrating part, the vibrating part is installed at one end close to the magnetic component, the vibrating part is connected to the voice coil and is electrically conductive with the voice coil; a conductive part, the conductive part is connected to the vibrating part; and a supporting part, the supporting part is used to support the magnetic component and the vibrating part; the bone conduction hearing aid and the bone conduction earphone both include the above-mentioned bone conduction speaker. The bone conduction speaker of the present invention has good sound wave transmission effect and good sound quality.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and in particular to a bone conduction loudspeaker, a bone conduction earphone and a bone conduction hearing aid. Background Art

[0002] Bone conduction is a sound transmission method that converts sound into mechanical vibrations of different frequencies and transmits sound waves through the human skull, bony labyrinth, inner ear lymph, spiral organ, auditory nerve, and auditory center. Compared with the classic sound transmission method that generates sound waves through the diaphragm, bone conduction saves many steps in sound wave transmission and can achieve clear sound restoration in a noisy environment. Moreover, the sound waves will not affect others because they spread in the air.

[0003] Bone conduction speaker technology is used for receiving calls. The sound waves (vibration signals) converted from electrical signals are directly transmitted to the auditory nerve through the bones. The transmission medium of the sound waves (vibration signals) is different.

[0004] At present, bone conduction speakers are generally worn in front of the ear through earbands, and the sound is conducted to the human ear through the bone in front of the ear. Inside, the U iron and magnet are installed, and the springs are installed in the gaps between the magnets, and vibrations are generated between the springs. The current wearing method usually makes the speaker volume larger. If it is made into a miniature, the volume of the magnet will be reduced, and the sound wave transmission effect will also be worse. Summary of the invention

[0005] Based on this, it is necessary for the present invention to provide a bone conduction speaker with good sound wave transmission effect and good sound quality.

[0006] The invention also provides a bone conduction earphone.

[0007] The invention also provides a bone conduction hearing aid.

[0008] In order to achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0009] A bone conduction speaker, comprising:

[0010] A magnetic component, the magnetic component comprising a first magnetic member and a second magnetic member, wherein a through hole is provided in the middle of the first magnetic member, and the second magnetic member passes through the through hole, so that a magnetic gap is formed between the first magnetic member and the second magnetic member at two opposite sides of the through hole;

[0011] a voice coil, the voice coil being installed in the magnetic gap;

[0012] A vibrating member, the vibrating member being mounted at one end close to the magnetic assembly, the vibrating member being connected to the voice coil and being electrically connected to the voice coil;

[0013] a conductive member connected to the vibrating member; and

[0014] A supporting component is used to support the magnetic component and the vibrating component.

[0015] In the above-mentioned bone conduction speaker, the magnetic component is composed of at least two magnets. When the volume of the entire speaker is reduced, the volume of the magnet will not be affected and can even be increased, so as not to affect the transmission effect of the sound waves. When the volume of the speaker becomes smaller, the sound quality effect can be effectively guaranteed.

[0016] In some embodiments, the magnetic assembly further includes a first magnetic conductive member connected to one end of the first magnetic member close to the vibrating member and a second magnetic conductive member connected to one end of the second magnetic member close to the vibrating member.

[0017] In some of the embodiments, the vibration element is made of a hard material and has a built-in circuit element, and the voice coil is connected to the vibration element and electrically connected to the circuit element.

[0018] In some of the embodiments, the vibration element is a metal sheet, a plastic sheet or a carbon fiber sheet with the circuit element embedded therein.

[0019] In some embodiments, the bone conduction speaker further includes a third magnetic conductive member, wherein the third magnetic conductive member is installed at an end of the first magnetic member away from the vibrating member and an end of the second magnetic member away from the vibrating member.

[0020] In some embodiments, the first magnetic component is a magnet, the second magnetic component is a metal that generates a magnetic field with the magnet, the third magnetic conductive component is a metal that is magnetically attracted to the magnet, and the third magnetic conductive component is integrally formed with the second magnetic component.

[0021] In some embodiments, the bone conduction speaker further comprises a circuit board connected to the end of the third magnetic conductive member away from the first magnetic member, and the vibrating member is electrically connected to the circuit board via a conductive member. In some embodiments, a first wire groove is provided on the outside of the supporting member, a second wire groove is provided on the outside of the first magnetic conductive member, and a third wire groove is provided on the outside of each of the first magnetic members, and the conductive member is guided to the circuit board via the first wire groove, the second wire groove, and the third wire groove in sequence.

[0022] In some embodiments, the first magnetic member is a magnet, and the second magnetic member is a metal that can be magnetically attracted to the magnet; or both the first magnetic member and the second magnetic member are magnets.

[0023] The present invention also provides a bone conduction earphone, comprising the bone conduction speaker.

[0024] The present invention also provides a bone conduction hearing aid, comprising the bone conduction speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a bone conduction speaker according to an embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of a bone conduction speaker according to a second embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the bone conduction speaker described in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] Embodiment 1

[0031] Please refer to Figure 1 The present invention provides a bone conduction speaker 100, including a magnetic component 10, a voice coil 20, a vibrator 30, a conductive component 40 and a supporting component 50. The magnetic component 10 is used to provide a magnetic field to the voice coil 20, the voice coil 20 is used to cut magnetic flux lines and generate electromotive force, the vibrator 30 is used to connect the voice coil 20, conduct the circuit, and transmit vibration, and the conductive component 40 is used to vibrate and conduct sound waves.

[0032] When working, the voice coil 20 is energized, and vibrates in the magnetic field generated by the magnetic assembly 10, so that the vibration plate 30 and the conductive member 40 vibrate accordingly. Since the magnetic assembly 10 includes at least two combined magnetic members, when the volume of the entire speaker is reduced, the volume of the magnetic assembly 10 can remain unchanged or be enlarged, and the volume of the magnetic assembly 10 is less affected. Therefore, when the volume of the entire speaker is reduced, the transmission effect of the sound wave is not affected, thereby effectively ensuring the sound quality.

[0033] Please continue to refer to Figure 1The magnetic assembly 10 includes a first magnetic member 11 and a second magnetic member 12. A through hole 13 is formed in the middle of the first magnetic member 11. The second magnetic member 12 is installed in the through hole 13, so that a magnetic gap 14 is formed between the opposite sides of the first magnetic member 11 corresponding to the through hole 13 and the second magnetic member 12. The first magnetic member 11 and the second magnetic member 12 can generate a strong magnetic field. When the voice coil 20 is installed in the magnetic gap 14, the magnetic flux lines can be cut more strongly, thereby ensuring better sound quality.

[0034] The shapes of the first magnetic member 11 and the second magnetic member 12 can be set as required.

[0035] In one embodiment, the first magnetic member 11 is in a ring shape to form a through hole 13 in the middle of the first magnetic member 11, and the second magnetic member 12 is in a block shape, which is installed in the through hole 13 and does not contact the side wall of the first magnetic member 11, thereby forming the above-mentioned magnetic gap 14. The second magnetic member 12 can be in a ring shape, a block shape, a strip shape, etc., and it can cooperate with the first magnetic member 11.

[0036] One of the first magnetic member 11 and the second magnetic member 12 is a magnet, and the other is a magnet or a metal that can generate magnetic attraction with a magnet. For example, the first magnetic member 11 is a magnet, and the second magnetic member 12 is metal iron, or the first magnetic member 11 is metal iron, and the second magnetic member 12 is a magnet, or both the first magnetic member 11 and the second magnetic member 12 are magnets, and the purpose of generating a magnetic circuit can be achieved.

[0037] Of course, the first magnetic member 11 and the second magnetic member 12 may also adopt other shapes. The magnetic assembly 10 may also include three or more magnetic members. It is preferred to select fewer magnetic members to form the magnetic assembly 10, so that the overall connection structure is more stable.

[0038] Furthermore, the magnetic assembly 10 further includes a first magnetic conductive member 15 connected to one end of the first magnetic member 11 close to the vibrating member 30 and a second magnetic conductive member 16 connected to one end of the second magnetic member 12 close to the vibrating member 30. The first magnetic conductive member 15 and the second magnetic conductive member 16 can play a role of magnetic conductivity. The first magnetic conductive member 15 and the second magnetic conductive member 16 can be a metal that generates magnetic attraction, or a magnet, preferably a metal that generates magnetic attraction, such as iron metal.

[0039] Furthermore, the magnetic assembly 10 further includes a third magnetic conductive member 17, which is mounted on the ends of the first magnetic member 11 and the second magnetic member 12 away from the vibrating member 30. The third magnetic conductive member 17 can be used to mount the first magnetic member 11 and the second magnetic member 12, and can also be used to guide magnetism. The third magnetic conductive member 17 can be a metal that produces magnetic attraction, or a magnet, preferably a metal that cooperates with a magnet, such as iron.

[0040] The third magnetic conductive member 17 and the second magnetic member 12 can be provided separately or integrally. In this embodiment, the third magnetic conductive member 17 and the second magnetic member 12 are provided separately.

[0041] The voice coil 20 is installed in the magnetic gap 14 of the magnetic assembly 10. The function of the voice coil 20 is to cut the magnetic lines of force and generate electromotive force. As long as it can achieve this function, its shape, structure and material are not limited.

[0042] In one embodiment, the voice coil 20 is in a ring shape and is directly installed in the annular magnetic gap 14 .

[0043] Please continue to refer to Figure 1 The vibrating member 30 is installed at one end close to the magnetic component 10 . The vibrating member 30 is connected to the voice coil 20 and is electrically connected to the voice coil 20 , thereby electrically connecting the entire speaker. When the voice coil 20 vibrates, the vibrating member 30 vibrates accordingly, thereby transmitting the vibration to the conductive member 40 .

[0044] In one embodiment, a pad is provided at the outer end of the vibrating member 30, and an external circuit is connected through the pad, so that the circuit of the entire speaker is turned on. Of course, the vibrating member 30 can also be turned on to the external circuit in other ways, such as through a circuit board.

[0045] In one embodiment, the vibrating member 30 is a vibrating plate, which has a smaller thickness and is more convenient for transmitting vibration.

[0046] In one embodiment, the vibrator 30 is made of a hard material and has a built-in circuit element, and the voice coil 20 is connected to the vibrator 30 and electrically connected to the circuit element. Since the voice coil 20 is directly connected to the vibrator 30 and the vibrator 30 is made of a hard material, the stability when connected to the voice coil can be ensured, and the stability when the vibrator 30 and the voice coil 20 vibrate can be ensured. In contrast, a general soft vibrator needs to rely on auxiliary components to connect to the voice coil 20, or a gap is set between the vibrator 30 and the voice coil 20.

[0047] For example, the vibration element 30 is a steel sheet, a plastic sheet, or a carbon fiber sheet with built-in circuit elements.

[0048] Of course, the vibration member 30 can also be made of other elastic elements, such as ordinary metal sheets, but the stability effect is not as good as that of hard materials.

[0049] The conductive element 40 is connected to the vibrating element 30 and is a component for vibrating and transmitting sound. When the vibrating element 30 vibrates, the vibration is transmitted to the conductive element 40. The conductive element 40 can generally be a piezoelectric ceramic sheet, a PC conductive sheet, or other conductive elements.

[0050] In one embodiment, the conductive member 40 is connected to an end of the vibrating member 30 away from the magnetic component 10 .

[0051] The function of the support component 50 is to support the vibrator 30 and the magnetic assembly 10, and to provide support to make the installation structure of the vibrator 30 and the magnetic assembly 10 more stable. The support component 50 can be made of materials such as plastic, iron, and low-carbon steel. The connection between the support component 50 and the vibrator 30 and the magnetic assembly 10 can be achieved by gluing, connecting with a connector, and the like.

[0052] The supporting member 50 can be made of metal, plastic or other hard materials.

[0053] The support member 50 may only be supported between the magnetic assembly 10 and the vibrator 30, or may cover both sides of the magnetic assembly 10, or may only cover one side of the magnetic assembly 10. In this embodiment, the support member 50 is ring-shaped and is installed between the magnetic assembly 10 and the vibrator 30.

[0054] In one embodiment, the bone conduction speaker 100 further includes a circuit board 60, which is mounted on a side of the third magnetic conductive member 17 away from the magnetic assembly 10, and the vibrating member 30 is electrically connected to the circuit board 60 through a conductive member. The circuit board 60 can be more conveniently connected to an external circuit. In one embodiment, a first wire groove is provided on the outside of the supporting member 50, a second wire groove is provided on the outside of the first magnetic conductive member 15, and a third wire groove is provided on the outside of the first magnetic member 11. The conductive member is guided to the circuit board 60 by the first wire groove, the second wire groove and the third wire groove in sequence. The provision of the wire groove can facilitate the guiding of the conductive member to the circuit board 60 on the one hand, and can hide the conductive member and prevent the conductive member from being exposed on the other hand, so that the volume of the shell covering the entire speaker can also be reduced, which is convenient for preparing a miniature speaker. The conductive member is, for example, a wire, a conductive sheet, and the like.

[0055] The bone conduction speaker 100 may further include a housing, which covers the above components to prevent the entire speaker from magnetic leakage. The housing may be provided with a sound expansion hole, and the sound generated by the speaker may be emitted to the human ear through the sound expansion hole.

[0056] Embodiment 2

[0057] Please refer to Figure 2 The bone conduction speaker of this embodiment is basically the same as the bone conduction speaker of the first embodiment, except that the third magnetic conductive member 17 is integrally provided with the second magnetic member 12, the second magnetic member 12 is a metal that can be attracted by a magnet, and the third magnetic conductive member 17 and the second magnetic member 12 form a T-shaped iron, which is more convenient for installation. At this time, since both the third magnetic conductive member 17 and the second magnetic member 12 can conduct magnetism, the second magnetic conductive member 16 does not need to be removed.

[0058] Embodiment 3

[0059] Please refer to Figure 2 The bone conduction speaker described in this embodiment is basically the same as the bone conduction speaker described in Embodiment 1 or Embodiment 2, except that the support component 50 is annular, located between the magnetic component 10 and the vibrating component 30 and covers one side of the magnetic component 10.

[0060] Embodiment 4

[0061] Please refer to Figure 3 The bone conduction speaker described in this embodiment is basically the same as the bone conduction speaker described in Example 1 or Example 2, except that the support component 50 is annular and covers both sides of the magnetic component 10. At this time, a wire groove can be opened in the support component 50, and the conductive member can extend from the wire groove of the support component 50 to be connected to the circuit board 60.

[0062] Embodiment 5

[0063] This embodiment provides a bone conduction earphone, which includes the bone conduction speaker described in any one of Embodiments 1 to 3. After the bone conduction speaker is installed in the bone conduction earphone, the bone conduction earphone can be made smaller and has better sound quality.

[0064] Embodiment 6

[0065] This embodiment provides a bone conduction hearing aid, which includes the bone conduction speaker described in any one of Embodiments 1 to 3. After the bone conduction speaker is installed in the bone conduction hearing aid, the bone conduction hearing aid can be made smaller and has better sound quality.

[0066] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A bone conduction speaker, characterized in that: include: A magnetic component, the magnetic component comprising a first magnetic member and a second magnetic member, wherein a through hole is provided in the middle of the first magnetic member, and the second magnetic member passes through the through hole, so that a magnetic gap is formed between the first magnetic member and the second magnetic member at two opposite sides of the through hole; a voice coil, the voice coil being installed in the magnetic gap; A vibrating member, the vibrating member is installed at one end close to the magnetic component, the vibrating member is connected to the voice coil and is electrically connected to the voice coil; the vibrating member is made of a hard material; a conductive member connected to the vibrating member; A circuit board is arranged on a side of the magnetic component away from the vibrating element, and the circuit board is electrically connected to the vibrating element; and A supporting component, the supporting component is used to support the magnetic component and the vibrating component; the supporting component is configured in a preset manner, and the preset manner includes any one of the following manners: The first mode: the supporting member is supported between the magnetic component and the vibrating member; The second mode: the supporting component is supported between the magnetic component and the vibrating component, and the supporting component covers two sides of the magnetic component; A third mode: the supporting component is supported between the magnetic component and the vibrating component, and the supporting component wraps around one side of the magnetic component.

2. The bone conduction speaker according to claim 1, characterized in that: The first magnetic member is in a ring shape, so that the through hole is formed in the middle of the first magnetic member.

3. The bone conduction speaker according to claim 1, characterized in that: The vibrator has a built-in circuit element, and the voice coil is connected to the vibrator and electrically connected to the circuit element.

4. The bone conduction speaker according to claim 3, characterized in that: The vibrating element is a metal sheet, a plastic sheet or a carbon fiber sheet with the circuit element built in.

5. The bone conduction speaker according to claim 1, characterized in that: The magnetic assembly further includes a first magnetic conductive member connected to one end of the first magnetic member close to the vibration member and a second magnetic conductive member connected to one end of the second magnetic member close to the vibration member.

6. The bone conduction speaker according to claim 5, characterized in that: The bone conduction speaker also includes a third magnetic conductive component, which is installed on the end of the first magnetic component away from the vibrating component and the end of the second magnetic component away from the vibrating component, and the circuit board is connected to the end of the third magnetic conductive component away from the first magnetic component.

7. The bone conduction speaker according to claim 6, characterized in that: The first magnetic component is a magnet, the second magnetic component is a metal that generates a magnetic field with the magnet, the third magnetic conductive component is a metal that is magnetically attracted to the magnet, and the third magnetic conductive component is integrally formed with the second magnetic component.

8. The bone conduction speaker according to claim 7, characterized in that: The bone conduction speaker also includes a conductive member, a first wire groove is opened on the outside of the supporting member, a second wire groove is opened on the outside of the first magnetic conductive member, and a third wire groove is opened on the outside of the first magnetic member. The conductive member is guided to the circuit board by the first wire groove, the second wire groove and the third wire groove in sequence.

9. The bone conduction speaker according to claim 1, characterized in that: The first magnetic component is a magnet, and the second magnetic component is a metal that can be magnetically attracted to the magnet; or both the first magnetic component and the second magnetic component are magnets.

10. A bone conduction headset, characterized in that: A bone conduction speaker comprising the bone conduction speaker as described in any one of claims 1 to 9.

11. A bone conduction hearing aid, characterized in that: A bone conduction speaker comprising the bone conduction speaker as described in any one of claims 1 to 9.

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