WO2023208051A1 - 一种骨传导振动发声装置及骨传导眼镜 - Google Patents

一种骨传导振动发声装置及骨传导眼镜 Download PDF

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Publication number
WO2023208051A1
WO2023208051A1 PCT/CN2023/090901 CN2023090901W WO2023208051A1 WO 2023208051 A1 WO2023208051 A1 WO 2023208051A1 CN 2023090901 W CN2023090901 W CN 2023090901W WO 2023208051 A1 WO2023208051 A1 WO 2023208051A1
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WIPO (PCT)
Prior art keywords
magnet
bone conduction
conduction vibration
outer frame
spacer
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PCT/CN2023/090901
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English (en)
French (fr)
Inventor
陶志勇
刘莹
曹洪斌
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苏州索迩电子技术有限公司
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Publication of WO2023208051A1 publication Critical patent/WO2023208051A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/06—Hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present invention relates to the technical field of bone conduction sound generation, and in particular to a bone conduction vibration sound generation device and bone conduction glasses.
  • Bone conduction glasses are glasses integrated with bone conduction sound technology. They transmit sound through the principle of bone conduction and have the dual functions of glasses and headphones.
  • Bone conduction glasses include a bone conduction vibration and sound device.
  • the bone conduction vibration and sound device can vibrate under the action of electromagnetic force. When the vibration is transmitted to the person's face, the person can hear the sound.
  • bone conduction vibration and sound devices There are roughly two installation methods for bone conduction vibration and sound devices.
  • One is that the bone conduction vibration and sound devices are connected to the outside of the temples of bone conduction glasses, which fit the human face alone.
  • This type of bone conduction glasses adds additional
  • the bone conduction vibration sound device is quite different from traditional glasses in appearance, which increases the complexity of the temple structure and increases the risk of damage when falling and impacting; another bone conduction vibration sound device They are installed inside the temples of bone conduction glasses. In this case, the appearance of the bone conduction glasses is less different from traditional glasses, and the reliability of the temples is higher.
  • the current bone conduction vibration and sound devices are large in size and usually Being cylindrical in shape, the temples need to be significantly increased in both thickness and width to provide installation space for bone conduction vibration sound devices.
  • the size of the bone conduction vibration sound device tends to be smaller.
  • the magnet and the shell made of magnetically conductive materials are required. The gap between them is small, and when it vibrates, it is easy to be unable to vibrate due to the excessive magnetic attraction between it and the shell, seriously affecting the reliability of the product.
  • the object of the present invention is to provide a bone conduction vibration sounding device and bone conduction glasses, which have better reliability.
  • the present invention proposes a bone conduction vibration sound device, including:
  • the shell assembly includes an outer frame, a spacer connected to the end of the outer frame, and a receiving cavity formed between the outer frame and the spacer.
  • the outer frame is made of magnetically conductive material, and the spacer
  • the parts are made of non-magnetic permeable materials or materials whose magnetic permeability is weaker than that of the outer frame;
  • a spring piece connected to the spacer
  • a first magnet is located in the receiving cavity and connected to the elastic piece;
  • a driving component is provided in the receiving cavity and connected to the outer frame.
  • the driving component is used to drive the first magnet to vibrate.
  • the number of the spacers is one, and the spacers are annular and surround the periphery of the first magnet; or,
  • the spacer is plate-shaped, the number of the spacers is multiple, and the multiple spacers surround the periphery of the first magnet.
  • the driving component includes a second magnet and a coil surrounding the periphery of the second magnet.
  • the second magnet is opposite to the first magnet with the same pole, and there is a space between them.
  • the coil is energized to generate a magnetic field that drives the first magnet to vibrate.
  • the repulsive force between the first magnet and the second magnet offsets the attractive force between the first magnet and the outer frame.
  • the outer frame includes a base plate and a side plate protruding from the outer edge of the base plate, the coil and the second magnet are both fixedly connected to the base plate, and the second magnet is close to the The end of the first magnet does not extend beyond the coil.
  • the outer frame is provided with a wiring trough for threading the coil, and the wiring trough extends from the end surface of the side plate to the base plate.
  • the side panel is provided with an observation port that communicates the receiving cavity with the outside world.
  • the bone conduction vibration sounding device is in a strip shape, and the aspect ratio of the bone conduction vibration sounding device is 1.2 to 8.
  • the elastic piece includes an outer bracket connected to the spacer, a connecting plate connected to the first magnet, and an elastic arm connected between the outer bracket and the connecting plate; the bone conduction vibration
  • the sound-generating device also includes a low-frequency adjustment piece connected between the first magnet and the connecting plate, The low-frequency adjustment piece does not contact the elastic arm.
  • the present invention proposes bone conduction glasses, including the bone conduction vibration sound device as described in any one of the above.
  • the present invention has the following beneficial effects:
  • the housing assembly includes an outer frame and a spacer, wherein the outer frame is made of magnetically conductive material, and the spacer is made of non-magnetic conductive material or a material with a magnetic conductivity weaker than that of the outer frame, so that , can reduce the suction force between the first magnet and the housing component during the vibration process, especially the suction force between the first magnet and the housing component when it vibrates far away from the coil, thereby preventing the suction force between the first magnet and the outer frame component from being too large , causing the problem that the coil cannot drive the first magnet to vibrate, the bone conduction vibration sound device has better reliability.
  • the bone conduction vibration sounding device is set in a strip shape, which is adapted to the shape of the temples of bone conduction glasses, so it can be easily installed into the temples and has less impact on the cross-sectional size of the temples. , making bone conduction glasses more comfortable to wear.
  • Figure 1 is a schematic structural diagram of a bone conduction vibration and sound-generating device according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of the bone conduction vibration sound-generating device shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of the shell assembly of the bone conduction vibration sound-generating device shown in FIG. 1 .
  • FIG. 4 is a top view of the bone conduction vibration sound-generating device shown in FIG. 1 .
  • FIG. 5 is a cross-sectional view taken along line A-A in FIG. 4 .
  • Figure 6 is a schematic structural diagram of a housing assembly according to an embodiment of the present invention.
  • the spacer has a gap.
  • FIG. 7 is a schematic structural diagram of a housing assembly according to an embodiment of the present invention. In the figure, there are multiple spacers.
  • FIG. 8 is a bottom view of the spacer of the housing assembly of FIG. 3 .
  • FIG. 9 is a schematic structural diagram of the outer frame of the bone conduction vibration sound-generating device shown in FIG. 1 .
  • Fig. 10 is a schematic structural diagram of the bone conduction vibration sound-generating device in another embodiment of the present invention shown in Fig. 1 .
  • Figure 11 is a schematic structural diagram of the connection between the elastic piece and the low-frequency adjustment piece in one embodiment of the present invention.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • the present invention proposes a bone conduction vibration sound device, which includes a shell component 1, a spring piece 2 connected to the shell component 1, a first magnet 3 connected to the spring piece 2, and a first magnet 3 fixed to the shell component.
  • Drive assembly 4 within 1.
  • the housing assembly 1 includes an outer frame 10 and a spacer 11 connected to the end of the outer frame 10 .
  • a receiving cavity 12 with one end open is formed between the outer frame 10 and the spacer 11 .
  • the outer frame 10 is made of magnetically permeable material, which has good magnetic permeability, and is preferably made of SPCC material.
  • the spacer 11 is made of non-magnetic permeable material or a material whose magnetic permeability is weaker than that of the outer frame 10.
  • the non-magnetic permeable material can be, for example, plastic such as PC or metal materials such as aluminum alloy, and its magnetic permeability is weaker than that of the outer frame 10.
  • the material may be stainless steel, for example.
  • the outer frame 10 and the spacer 11 are both made of metal materials, and the connection between the two is achieved through the MIM metal powder injection molding process.
  • the elastic piece 2 is connected to the spacer 11 and covers the open end of the receiving cavity 12 .
  • the elastic piece 2 is connected to the first magnet 3 provided in the receiving cavity 12, and is used to provide a restoring force to drive the first magnet 3 back to the equilibrium position after the first magnet 3 is deviated from the equilibrium position.
  • the driving component 4 is disposed in the receiving cavity 12 and is fixedly connected to the outer frame 10 for driving the first magnet 3 to vibrate.
  • the driving component 4 includes a coil 41. In the coil After 41 is energized, a changing magnetic field will be generated, and the first magnet 3 will vibrate under the action of the magnetic field force.
  • the spacer 11 is provided at the end of the outer frame 10 and the spacer 11 is made of non-magnetic conductive material or a material with weaker magnetic permeability than that of the outer frame 10, there is a gap between the first magnet 3 and the spacer 11.
  • the magnetic attraction force is 0 or less than the magnetic attraction force between it and the outer frame 10 .
  • the first magnet 3 vibrates to the lower end of the housing assembly 1 (that is, the end of the housing assembly 1 away from the driving assembly 4)
  • the distance between the coil 41 and the first magnet 3 becomes farther, the distance between the coil 41 and the first magnet 3 becomes longer.
  • the driving force for the first magnet 3 is weakened, and it is easy to be unable to rebound due to the excessive suction force with the outer frame assembly 1.
  • a spacer 11 is provided at the open end of the outer frame 10, so that when the first magnet 3 vibrates to When the shell component 1 is at its lower end, it is mainly closer to the spacer 11, which can reduce the suction force between it and the outer frame component 1, prevent the situation from being unable to rebound, and make the use of the bone conduction vibration sound device more reliable.
  • the gap between the outer periphery of the first magnet 3 and the housing assembly 1 can be smaller, thereby increasing the volume of the first magnet 3.
  • the magnetism and mass of the first magnet 3 are greater, which is beneficial to increasing the volume of the bone conduction vibration sound device. , reduce its low-frequency resonance point F0 value.
  • the number of spacers 11 is one, and it is in the shape of a ring surrounding the outer circumference of the first magnet 3 .
  • the spacer 11 may be in the shape of a closed ring (refer to FIG. 3 ) or a ring shape with a gap 112 (refer to FIG. 6 ).
  • FIG. 7 there are multiple spacers 11 .
  • the embodiment shown in FIG. 7 has four plate-shaped spacers 11 .
  • the spacers 11 are located on the first magnet 3 Outside the outer peripheral surface, a plurality of spacers 11 surround the outer periphery of the first magnet 3 .
  • the elastic piece 2 can be connected to the end surface 113 of the spacer 11, or can be connected to the inner side 110 or the outer side 111 of the spacer 11 (see Figure 8 for numbers).
  • the outer frame 10 and the elastic piece 2 are connected to the spacer respectively.
  • the connection between the outer frame 10, the spacer 11 and the elastic piece 2 is more convenient.
  • the connection method between the outer frame 10 and the spacer 11 and between the elastic piece 2 and the spacer 11 is not limited, and may be connected by welding or gluing, for example.
  • the driving assembly 4 further includes a second magnet 40 .
  • the second magnet 40 is disposed in the coil hole 410 of the coil 41 , that is, the coil 41 surrounds the outer periphery of the second magnet 40 .
  • the outer frame 10 includes a base plate 100 and a side plate 101 connected to the outer edge of the base plate 100 .
  • the side plate 101 protrudes from the outer edge of the base plate 100 . Preferably, it protrudes in a direction perpendicular to the base plate 100 .
  • the spacer 11 is connected to the end of the side plate 101 . Containment chamber 12 It is located between the base plate 100 , the side plate 101 , the spacer 11 and the elastic piece 2 .
  • the first magnet 40 and the coil 41 are both located in the receiving cavity 12 and are fixedly connected to the substrate 100 by, for example, adhesive connection.
  • the first magnet 3 and the second magnet 40 are arranged with the same pole facing each other (for example, two N poles facing each other or S poles facing each other), and there is a gap 30 between them to provide the first magnet 3 A vibrating space.
  • the end of the second magnet 40 close to the first magnet 3 does not exceed the coil 41. In this way, the first magnet 3 can be blocked by the coil 41 in unexpected situations such as falling or being impacted, and the two magnets will not move due to each other. It will be damaged by impact, and at the same time it will help make the overall structure more compact.
  • the repulsive force between the first magnet 3 and the second magnet 40 offsets the attractive force between the first magnet 3 and the outer frame 10 , that is, the first magnet 3 and the second magnet 40 cancel each other.
  • the repulsive force between the two magnets 40 and the attractive force between the first magnet 3 and the outer frame 10 have the same magnitude and opposite directions, so that the first magnet 3 is in a static equilibrium state. In this way, after the coil 41 is energized to generate a magnetic field, the first magnet 3 can respond to changes in the magnetic field more quickly and has higher sensitivity.
  • the elastic piece 2 is made of non-magnetic permeable material or weakly magnetic permeable material to eliminate or reduce the impact on static balance.
  • the outer frame 10 is formed by sheet metal stamping and bending, that is, the four sides of the sheet are bent perpendicular to the middle sheet to form the side panels 101, and the middle sheet forms the base plate 100. After the processing is completed , referring to Figure 9, a gap 105 is formed between adjacent side plates 101 of the outer frame 10.
  • the processing method of sheet metal stamping is very convenient.
  • the outer frame 10 can also be directly injection molded in one step through a metal injection mold (MIM process). This process eliminates dimensional tolerance variations caused by bending and further improves the dimensional accuracy of the outer frame 10 .
  • MIM process metal injection mold
  • the spacer 11 is annular and connects multiple side plates 101, so that the overall strength and rigidity of the outer frame 10 is better, and the side plates 101 are not easily deformed.
  • the outer frame 10 is provided with a wiring groove 102 for the coil 41 to pass through.
  • the wiring groove 102 extends from the end surface 103 of the side plate 101 to the base plate 100.
  • the wire trough 102 extends above the coil hole 410 .
  • There are two wiring troughs 102 which are symmetrically arranged on both sides of the outer frame 10 .
  • the side plate 101 is also provided with an observation port 104 that connects the receiving cavity 12 and the outside world.
  • an observation port 104 that connects the receiving cavity 12 and the outside world.
  • the observation port 104 can facilitate the operator to observe the position of each part, and facilitate the positioning of each part, making assembly more convenient (obviously, the wiring trough 102 also has such a function), At the same time, it is also convenient to observe the vibration state of the first magnet 3 during the test process.
  • the bone conduction vibration sound device is arranged in a strip shape, so that it is more convenient to be integrated into the temples of bone conduction glasses without excessively increasing the cross-sectional area of the temples, and the bone conduction glasses are more comfortable to wear.
  • the aspect ratio (ratio of length a and width b) of the bone conduction vibration sound-generating device is 1.2 to 8. More preferably, the aspect ratio is any value between 3 and 5. If the ratio is too small, space will be wasted. Usually the width is very limited. A too large aspect ratio will easily cause rolling vibration, which will affect performance. Setting the aspect ratio to 3 to 5 will help improve the performance while making full use of the space. Performance of bone conduction vibrating sound generating devices.
  • the aspect ratio of the bone conduction vibration sound-generating device is 4.
  • the temples can be made thinner and more comfortable, lightweight and beautiful to wear.
  • the bone conduction vibration sound-generating device is in the shape of a rectangular parallelepiped, its side plate 101 can be divided into a long side plate 101a with a relatively large area and a short side plate 101b with a relatively small area, as shown in FIG. 9 .
  • the wiring trough 102 is provided on the short side plate 101b, and the observation opening 104 is provided on the long side plate 101a. Since the long side plate 101a has a larger area, a larger observation opening 104 can be opened, and the observation effect is better. .
  • the elastic piece 2 includes an outer bracket 20 connected to the spacer 11, a connecting plate 21 connected to the first magnet 3, and a connecting plate 21 connected between the outer bracket 20 and the connecting plate 21.
  • Spring arm 22 The outer bracket 20 is annular, and is connected to the spacer 11 by, for example, gluing or welding.
  • the connecting plate 21 is in the shape of a strip and is connected to the first magnet 3 in the shape of a strip.
  • There are two elastic arms 22 which are symmetrically arranged on both sides of the connecting plate 21 .
  • the elastic arm 22 is in the shape of a strip as a whole and is arranged parallel to the connecting plate 21.
  • the connecting plate 21 follows the vibration of the first magnet 3.
  • the elastic arm 22 undergoes elastic deformation to provide a restoring force that drives the first magnet 3 back to its original position. Since the first magnet 3 is in the shape of a long strip with a large length-to-width ratio, using a traditional elastic piece structure can easily cause the first magnet 3 to undergo rolling vibration during the vibration process (referring to the phenomenon that the first magnet 3 swings left and right during the vibration process). ), the elastic piece structure in this application is helpful to improve the vibration stability of the first magnet 3 and prevent the problem of rolling vibration.
  • a low-frequency adjustment piece 5 is connected between the first magnet 3 and the connecting plate 21, and the low-frequency adjustment piece 5 does not contact the elastic arm 22.
  • the low-frequency adjusting piece 5 overlaps the connecting plate 21 to increase the connection strength between the low-frequency adjusting piece 5 and the connecting plate 21 and the first magnet 3 so that the low-frequency adjusting piece 5 does not contact the elastic arm 22 .
  • the amplitude of the first magnet 3 at low frequency is greater. Big, better low-frequency sound effect.
  • the space of the receiving cavity 12 can be more fully utilized, and the volume and magnetic force of the first magnet 3 can be increased, thereby increasing the sensitivity and strength of the bone conduction vibration sound-generating device.
  • the present invention also proposes bone conduction glasses, which include temples and a bone conduction vibration and sound device as described above.
  • the bone conduction vibration and sound device is in a strip shape and is arranged in the temples. Since the bone conduction vibrating sound-generating device is in a strip shape and adapts to the shape of the temples, it can effectively reduce the cross-sectional area of the temples, making the bone conduction glasses more comfortable to wear.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
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  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本发明公开了一种骨传导振动发声装置及骨传导眼镜，该骨传导振动发声装置包括：外壳组件、弹片、第一磁体和驱动组件。外壳组件包括外框、连接于所述外框端部的间隔件以及形成于所述外框和所述间隔件之间的收容腔，所述外框采用导磁材料制成，所述间隔件采用非导磁材料制成或者采用导磁性能弱于所述外框的材料制成；弹片与所述间隔件相连；第一磁体设于所述收容腔内，并与所述弹片相连；驱动组件设于所述收容腔内，并与所述外框相连，所述驱动组件用于驱动所述第一磁体振动。本发明的骨传导振动发声装置工作时，第一磁体不易因为与外壳组件之间的吸力过大而无法振动，可靠性更好。

Description

一种骨传导振动发声装置及骨传导眼镜
优先权信息：本申请要求于2022年4月29日提交的申请号为202210474622.2的中国专利申请的优先权。
技术领域
本发明涉及骨传导发声技术领域，尤其涉及一种骨传导振动发声装置及骨传导眼镜。
背景技术
骨传导眼镜是集成有骨传导发声技术的眼镜，其通过骨传导原理传声，具有眼镜以及耳机的双重功能。
骨传导眼镜包括骨传导振动发声装置，骨传导振动发声装置能够在电磁力的作用下振动，当振动被传递至人脸部后，即可使人听到声音。
骨传导振动发声装置的安装形式大致有两种，一种是骨传导振动发声装置连接于骨传导眼镜的镜腿的外侧，其单独与人脸贴合，该种骨传导眼镜由于增加了额外的骨传导振动发声装置，因而与传统的眼镜在外观上有较大的差异，增加了镜腿结构的复杂性，在跌落和撞击时，增大了损坏的风险；另一种骨传导振动发声装置设置在骨传导眼镜的镜腿内部，该种情况下，骨传导眼镜的外形与传统眼镜差异较小，镜腿的可靠性更高，然而，目前的骨传导振动发声装置尺寸较大，且通常呈圆柱形，导致镜腿在厚度和宽度上均需要大幅增加尺寸以提供骨传导振动发声装置的安装空间。
另外，受到安装空间的限制，骨传导振动发声装置的尺寸倾向于做的较小，在采用动磁式(磁体振动)结构的骨传导振动发声装置中，磁体与导磁材料制成的外壳之间间隙小，振动时容易因为与外壳之间的磁吸力过大而导致无法振动，严重影响产品的可靠性。
因此，有必要对现有技术予以改良以克服现有技术中的所述缺陷。
发明内容
本发明的目的在于提供一种骨传导振动发声装置及骨传导眼镜，该骨传导振动发声装置的可靠性更好。
为实现上述发明目的，一方面，本发明提出了一种骨传导振动发声装置，包括：
外壳组件，包括外框、连接于所述外框端部的间隔件以及形成于所述外框和所述间隔件之间的收容腔，所述外框采用导磁材料制成，所述间隔件采用非导磁材料制成或者采用导磁性能弱于所述外框的材料制成；
弹片，与所述间隔件相连；
第一磁体，设于所述收容腔内，并与所述弹片相连；以及，
驱动组件，设于所述收容腔内，并与所述外框相连，所述驱动组件用于驱动所述第一磁体振动。
进一步地，所述间隔件的数量为一个，所述间隔件呈环状并环绕于所述第一磁体外周；或者，
所述间隔件呈板状，所述间隔件的数量为多个，且多个所述间隔件环绕于所述第一磁体外周。
进一步地，所述驱动组件包括第二磁体以及环绕于所述第二磁体外周的线圈，所述第二磁体与所述第一磁体同极相对设置，且两者之间具有间隔空间，所述线圈用于通电产生驱动所述第一磁体振动的磁场。
进一步地，所述第一磁体和所述第二磁体之间的斥力与所述第一磁体和所述外框之间的吸引力相抵消。
进一步地，所述外框包括基板以及自所述基板的外缘凸出的侧板，所述线圈和所述第二磁体均固定连接于所述基板上，且所述第二磁体靠近所述第一磁体的端部不超出所述线圈。
进一步地，所述外框设有供所述线圈穿线的走线槽，所述走线槽自所述侧板的端面延伸至所述基板。
进一步地，所述侧板开设有连通所述收容腔和外界的观察口。
进一步地，所述骨传导振动发声装置呈条状，所述骨传导振动发声装置的长宽比为1.2～8。
进一步地，所述弹片包括与所述间隔件相连的外支架、与所述第一磁体相连的连接板以及连接于所述外支架和所述连接板之间的弹臂；所述骨传导振动发声装置还包括连接于所述第一磁体和所述连接板之间的低频调节片， 所述低频调节片不与所述弹臂接触。
另一方面，本发明提出了一种骨传导眼镜，包括如上任一项所述的骨传导振动发声装置。
与现有技术相比，本发明具有如下有益效果：
1.本发明中，外壳组件包括外框和间隔件，其中，外框采用导磁材料制成，间隔件采用非导磁材料制成或者采用导磁性能弱于外框的材料制成，这样，可以降低第一磁体在振动过程中和外壳组件之间的吸力，特别是其振动至远离线圈所在位置时与外壳组件之间的吸力，从而防止因为第一磁体和外框组件的吸力过大，导致线圈无法驱动第一磁体振动的问题，骨传导振动发声装置的使用可靠性更好。
2.作为改进，骨传导振动发声装置被设置成呈条状，其与骨传导眼镜的镜腿形状相适应，因而能够方便的安装至镜腿内，且对镜腿的截面尺寸的影响更小，使得骨传导眼镜的佩戴更为舒适。
附图说明
图1是本发明中一种实施方式的骨传导振动发声装置的结构示意图。
图2是图1所示的骨传导振动发声装置的爆炸图。
图3是图1所示的骨传导振动发声装置的外壳组件的结构示意图。
图4是图1所示的骨传导振动发声装置的俯视图。
图5是沿图4中A-A剖切线剖得的剖视图。
图6是本发明中一种实施方式的外壳组件的结构示意图，图中，间隔件具有缺口。
图7是本发明中一种实施方式的外壳组件的结构示意图，图中，间隔件的数量为多个。
图8是图3中外壳组件的间隔件的仰视图。
图9是图1所示的骨传导振动发声装置的外框的结构示意图。
图10是图1是本发明中一种实施方式的骨传导振动发声装置的另一视向的结构示意图。
图11是本发明中一种实施方式的弹片与低频调节片相连的结构示意图。
具体实施方式
为使本申请的上述目的、特征和优点能够更为明显易懂，下面结合附图，对本申请的具体实施方式做详细的说明。可以理解的是，此处所描述的具体实施例仅用于解释本申请，而非对本申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
本申请中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
如图1至图11所示，本发明提出了一种骨传导振动发声装置，其包括外壳组件1、与外壳组件1相连的弹片2、与弹片2相连的第一磁体3和固定于外壳组件1内的驱动组件4。
如图1至图3所示，外壳组件1包括外框10和连接于外框10端部的间隔件11，外框10和间隔件11之间形成一端开口的收容腔12。外框10采用导磁材料制成，其具有较好的导磁性能，优选采用SPCC材料制成。间隔件11采用非导磁材料制成或者采用导磁性能弱于外框10的材料制成，非导磁材料例如可以是PC等塑料或者铝合金等金属材料，导磁性能弱于外框10的材料例如可以是不锈钢材料。优选的，外框10和间隔件11均采用金属材料制成，通过MIM金属粉末注塑工艺实现两者的连接。
弹片2与间隔件11相连，其遮盖在收容腔12的开口端。弹片2与设于收容腔12内的第一磁体3相连，用于在第一磁体3脱离平衡位置后提供驱动第一磁体3回到平衡位置的复位力。
参考图2、图4和图5，驱动组件4设于收容腔12内，其与外框10固定连接，用于驱动第一磁体3振动，具体而言，驱动组件4包括线圈41，在线圈41通电后将产生变化的磁场，第一磁体3在磁场力的作用下振动。
由于外框10端部设置有间隔件11，且间隔件11采用非导磁材料制成或者采用导磁性能弱于外框10的材料制成，因此，第一磁体3与间隔件11之间的磁性吸力为0或者要小于其与外框10之间的磁性吸力。传统的结构中，在第一磁体3振动至外壳组件1下端(即外壳组件1远离驱动组件4的端部)的时候，由于线圈41与第一磁体3之间的距离变远，因此，其对第一磁体3的驱动力减弱，容易因为与外框组件1之间的吸力过大而无法回弹，本申请中，通过在外框10开口端设置间隔件11，在第一磁体3振动至外壳组件1下端时，其主要与间隔件11靠的更近，可以减小其与外框组件1之间的吸力，防止出现无法回弹的情况，骨传导振动发声装置的使用更为可靠。相应的，第一磁体3外周与外壳组件1之间的间隙可以更小，从而增加第一磁体3的体积，第一磁体3的磁性和质量更大，有利于提高骨传导振动发声装置的音量，降低其低频谐振点F0值。
在一种优选的实施方式中，间隔件11的数量为一个，且其呈环绕于第一磁体3外周的环状。间隔件11可以是封闭的环状(参考图3)，或者具有缺口112的环状(参考图6)。
在另一种优选的实施方式中，参考图7，间隔件11的数量有多个，图7示出的实施例中具有4个板状的间隔件11，间隔件11位于第一磁体3的外周面外侧，多个间隔件11环绕于第一磁体3外周。
弹片2可以连接在间隔件11的端面113上，也可以连接在间隔件11的内侧面110或者外侧面111上(标号见图8)，优选的，外框10和弹片2分别连接在间隔件11的上下两端面113上，更便于外框10、间隔件11和弹片2之间的连接。外框10与间隔件11之间以及弹片2和间隔件11之间的连接方式不限，例如通过焊接或者胶粘连接。
如图5所示，驱动组件4还包括第二磁体40，第二磁体40设于线圈41的线圈孔410内，即线圈41环绕于第二磁体40外周。参考图9，外框10包括基板100以及连接于基板100外缘的侧板101，侧板101自基板100的外缘凸出，优选的，其沿垂直于基板100的方向凸出。间隔件11连接在侧板101的端部。收容腔12 位于基板100、侧板101、间隔件11和弹片2之间。第一磁体40和线圈41均位于收容腔12内，且固定连接于基板100上，连接方式例如是胶粘连接。安装完成后，参考图5，第一磁体3和第二磁体40同极相对设置(例如两个N极相对或者S极相对)，且两者之间具有间隔空间30，以提供第一磁体3振动的空间。优选的，第二磁体40靠近第一磁体3的端部不超出线圈41，这样，第一磁体3在跌落、受到冲击等意外情况下，能够受到线圈41的阻挡，两个磁体不会因为相撞击而损坏，同时有利于使得整体的结构更为紧凑。
为了使得骨传导振动发声装置具有更高的灵敏度，第一磁体3和第二磁体40之间的斥力与第一磁体3和外框10之间的吸引力相抵消，即第一磁体3和第二磁体40之间的斥力与第一磁体3和外框10之间的吸引力的大小相同、方向相反，使得第一磁体3处于静力平衡状态。这样，在线圈41通电产生磁场后，第一磁体3能够更为快速的针对磁场变化做出响应，灵敏度更高。可以理解的是，弹片2采用非导磁材料或者弱导磁材料制成，以消除或者减小对静力平衡的影响。
作为一种优选的实施方式，外框10采用钣金冲压折弯的方式成型，即将板料的四边折弯至与中间板料垂直形成侧板101，中间板料即形成基板100，加工完成后，参考图9，外框10相邻的侧板101之间形成间隙105。通过钣金冲压的加工方式，加工十分方便。外框10还可以通过金属注塑模具直接注塑一步成型(MIM工艺)，此工艺省却了折弯带来的尺寸公差变异，进一步提升外框10的尺寸精度。
进一步优选的，间隔件11呈环状，其连接多块侧板101，使得外框10整体的强度和刚度更好，侧板101不易变形。
为了便于线圈41走线，外框10设有供线圈41穿线的走线槽102，参考图9，走线槽102自侧板101的端面103延伸至基板100，优选的，参考图4，走线槽102延伸至线圈孔410上方。走线槽102的数量为两个，对称设置在外框10的两侧。
在侧板101上还开设有连通收容腔12和外界的观察口104，通过观察口104能够观察到外框10内部，在外框10内安装第一磁体3、线圈41和第二磁体40的过程中，观察口104能够便于操作者观察各零件的位置，并方便对各零件的位置进行定位，使得装配更为方便(显然的，走线槽102也具有这样的功能)， 同时，在测试过程中，也便于观察第一磁体3的振动状态。
骨传导振动发声装置被设置成条状，以使得其集成在骨传导眼镜的镜腿内更为方便，不会过大的增加镜腿的截面积，骨传导眼镜佩戴更为舒适。作为一种优选的实施方式，骨传导振动发声装置的长宽比(长度a和宽度b的比值)为1.2～8，进一步优选的，长宽比为3～5之间的任意值，长宽比过小会浪费空间，通常宽度上尺寸非常受限，太大的长宽比容易导致滚振，进而影响性能，将长宽比设置为3～5，有利于在充分利用空间的情况下提高骨传导振动发声装置的性能。更进一步优选的，骨传导振动发声装置的长宽比为4。显然的，由于骨传导振动单元的长宽比较大，宽度和厚度较小，因此，镜腿能够做的更细，佩戴更为舒适、轻便和美观。
由于骨传导振动发声装置呈长方体形的条状，因此，如图9所示，其侧板101可以分为面积相对较大的长侧板101a和面积相对较小的短侧板101b。优选的，走线槽102设于短侧板101b上，观察口104设于长侧板101a上，由于长侧板101a面积更大，因此，能够开设更大的观察口104，观察效果更好。
作为一种优选的实施方式，如图10所示，弹片2包括与间隔件11相连的外支架20、与第一磁体3相连的连接板21以及连接于外支架20和连接板21之间的弹臂22。外支架20呈环状，其与间隔件11之间通过例如胶粘或者焊接等方式相连。连接板21呈条状，其与呈条状的第一磁体3相连。弹臂22的数量为两个，其对称设置在连接板21的两侧。弹臂22整体呈条状，与连接板21平行布置，其两端与连接板21的两端相连，中部与外支架20相连，在第一磁体3振动的过程中，连接板21随着第一磁体3的运动而运动，弹臂22则发生弹性形变，以提供驱使第一磁体3回到原位的复位力。由于第一磁体3呈长条状，长宽比较大，采用传统的弹片结构容易使得第一磁体3在振动的过程中发生滚振(指的是第一磁体3在振动过程中左右摇摆的现象)，本申请中的弹片结构，有利于提高第一磁体3振动的稳定性，防止发生滚振的问题。
作为一种优选的实施方式，如图2、图5和图11所示，在第一磁体3和连接板21之间连接有低频调节片5，低频调节片5不与弹臂22接触。优选的，低频调节片5与连接板21重合，以在增加低频调节片5与连接板21和第一磁体3之间的连接强度的同时，使得低频调节片5不与弹臂22接触。由于设置了低频调节 片5，因此，第一磁体3的宽度和长度能够做的更大，即使其超出至弹臂22上方，也不会影响弹臂22的变形和振动，第一磁体3在低频时的振幅更大，低频音效更好。另外，能够更充分地利用收容腔12的空间，增大第一磁体3的体积和磁力，从而增大骨传导振动发声装置的灵敏度和力度。
本发明还提出了一种骨传导眼镜，其包括镜腿以及如上文所述的骨传导振动发声装置，骨传导振动发声装置呈条状，且设置于镜腿内。由于骨传导振动发声装置呈条状，与镜腿的形状相适应，因此，能够有效地减小镜腿的截面积，使得骨传导眼镜的佩戴更为舒适。
上述仅为本发明的具体实施方式，其它基于本发明构思的前提下做出的任何改进都视为本发明的保护范围。

Claims (10)

  1. 一种骨传导振动发声装置，其特征在于，包括：
    外壳组件(1)，包括外框(10)、连接于所述外框(10)端部的间隔件(11)以及形成于所述外框(10)和所述间隔件(11)之间的收容腔(12)，所述外框(10)采用导磁材料制成，所述间隔件(11)采用非导磁材料制成或者采用导磁性能弱于所述外框(10)的材料制成；
    弹片(2)，与所述间隔件(11)相连；
    第一磁体(3)，设于所述收容腔(12)内，并与所述弹片(2)相连；以及，
    驱动组件(4)，设于所述收容腔(12)内，并与所述外框(10)相连，所述驱动组件(4)用于驱动所述第一磁体(3)振动。
  2. 如权利要求1所述的骨传导振动发声装置，其特征在于，所述间隔件(11)的数量为一个，所述间隔件(11)呈环状并环绕于所述第一磁体(3)外周；或者，
    所述间隔件(11)呈板状，所述间隔件(11)的数量为多个，且多个所述间隔件(11)环绕于所述第一磁体(3)外周。
  3. 如权利要求1所述的骨传导振动发声装置，其特征在于，所述驱动组件(4)包括第二磁体(40)以及环绕于所述第二磁体(40)外周的线圈(41)，所述第二磁体(40)与所述第一磁体(3)同极相对设置，且两者之间具有间隔空间(30)，所述线圈(41)用于通电产生驱动所述第一磁体(3)振动的磁场。
  4. 如权利要求3所述的骨传导振动发声装置，其特征在于，所述第一磁体(3)和所述第二磁体(40)之间的斥力与所述第一磁体(3)和所述外框(10)之间的吸引力相抵消。
  5. 如权利要求3所述的骨传导振动发声装置，其特征在于，所述外框(10)包括基板(100)以及自所述基板(100)的外缘凸出的侧板(101)，所述线圈(41)和所述第二磁体(40)均固定连接于所述基板(100)上，且所述第二磁体(40)靠近所述第一磁体(3)的端部不超出所述线圈(41)。
  6. 如权利要求5所述的骨传导振动发声装置，其特征在于，所述外框(10)设有供所述线圈(41)穿线的走线槽(102)，所述走线槽(102)自所述侧板(101)的端面(103)延伸至所述基板(100)。
  7. 如权利要求5所述的骨传导振动发声装置，其特征在于，所述侧板(101)开设有连通所述收容腔(12)和外界的观察口(104)。
  8. 如权利要求1至7任一项所述的骨传导振动发声装置，其特征在于，所述骨传导振动发声装置呈条状，所述骨传导振动发声装置的长宽比为1.2～8。
  9. 如权利要求1至7任一项所述的骨传导振动发声装置，其特征在于，所述弹片(2)包括与所述间隔件(11)相连的外支架(20)、与所述第一磁体(3)相连的连接板(21)以及连接于所述外支架(20)和所述连接板(21)之间的弹臂(22)；所述骨传导振动发声装置还包括连接于所述第一磁体(3)和所述连接板(21)之间的低频调节片(5)，所述低频调节片(5)不与所述弹臂(22)接触。
  10. 一种骨传导眼镜，其特征在于，包括如权利要求1至9任一项所述的骨传导振动发声装置。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9288591B1 (en) * 2012-03-14 2016-03-15 Google Inc. Bone-conduction anvil and diaphragm
CN112887870A (zh) * 2021-03-19 2021-06-01 苏州索迩电子技术有限公司 一种骨传导发声装置和一种可穿戴设备
US20210219079A1 (en) * 2017-09-13 2021-07-15 Sony Corporation Bone conduction acoustic transmission device
CN113965846A (zh) * 2021-09-18 2022-01-21 苏州索迩电子技术有限公司 骨传导发声装置、骨传导发声装置装配方法及骨传导耳机
CN216357287U (zh) * 2021-11-30 2022-04-19 深圳市明悦达电声科技有限公司 一种共磁场振动骨声传导扬声器及耳机
CN114915883A (zh) * 2022-04-29 2022-08-16 苏州索迩电子技术有限公司 一种骨传导振动发声装置及骨传导眼镜

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9288591B1 (en) * 2012-03-14 2016-03-15 Google Inc. Bone-conduction anvil and diaphragm
US20210219079A1 (en) * 2017-09-13 2021-07-15 Sony Corporation Bone conduction acoustic transmission device
CN112887870A (zh) * 2021-03-19 2021-06-01 苏州索迩电子技术有限公司 一种骨传导发声装置和一种可穿戴设备
CN113965846A (zh) * 2021-09-18 2022-01-21 苏州索迩电子技术有限公司 骨传导发声装置、骨传导发声装置装配方法及骨传导耳机
CN216357287U (zh) * 2021-11-30 2022-04-19 深圳市明悦达电声科技有限公司 一种共磁场振动骨声传导扬声器及耳机
CN114915883A (zh) * 2022-04-29 2022-08-16 苏州索迩电子技术有限公司 一种骨传导振动发声装置及骨传导眼镜

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