CN116156381A

CN116156381A - Bone conduction earphone with transducer provided with vibration supporting arm

Info

Publication number: CN116156381A
Application number: CN202310148478.8A
Authority: CN
Inventors: 吴恒; 王元聪
Original assignee: Maijike Shandong Medical Instrument Co ltd
Current assignee: Maijike Shandong Medical Instrument Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-05-23

Abstract

The invention discloses a bone conduction earphone with a vibration supporting arm for a transducer, which comprises the following components: a housing; the front shell is connected with the shell, and a cavity is formed in the shell and the front shell; a transducer connected to the front housing; the transducer includes: an electromagnetic assembly connected to the housing; the vibrating piece is connected with the electromagnetic assembly and is connected with the front shell, and the vibrating piece is hollow, so that the audio vibration of the electromagnetic assembly is conducted to the front shell through the vibrating piece. According to the invention, through the arrangement mode among the front shell, the vibrating piece, the electromagnetic component and the shell, the electromagnetic component converts audio signals into audio vibration and transmits the audio vibration to the central area of the vibrating piece, and the vibration is transmitted to the front shell through the peripheral ring part or the center of the vibrating piece, so that the audio vibration is transmitted to a wearer, and the purpose of reducing sound leakage when the transducer is used for transduction is realized, so that the vibration transmission efficiency is improved.

Description

Bone conduction earphone with transducer provided with vibration supporting arm

Technical Field

The invention relates to the field of bone conduction headphones, in particular to a bone conduction headphone with a transducer provided with a vibration supporting arm.

Background

The bone conduction earphone can convert the audio signal into audio vibration with different frequencies, and transmits the audio vibration to human tissues and bones when the audio vibration contacts with human skull bones, and further transmits the audio vibration to auditory nerves, so that a wearer can hear the sound in a bone conduction mode, and the bone conduction earphone needs to play bone conduction to the user immediately after the peripheral pickup is enhanced and noise is reduced. The core component of the bone conduction earphone is a bone conduction loudspeaker, also called a vibration transducer, and is used for converting an audio signal into vibration mechanical energy of the vibration transducer and closing to the cheekbone position in front of the ear and conducting vibration.

In the existing design scheme, the vibrator easily generates air conduction sound when carrying out vibration transduction on the audio signal, and the soft rubber piece possibly generates dislocation when being worn or pressed, so as to influence the vibrating piece connected with the soft rubber piece, and then the transducer is easy to cause the leakage sound of the transducer when carrying out transduction on the audio signal, and further the transmission efficiency of bone conduction vibration is influenced.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a bone conduction earphone with a vibration support arm for a transducer, which aims to solve the problems that the existing transducer is easy to leak sound and the vibration transmission efficiency is to be improved.

The technical scheme of the invention is as follows:

the invention provides a bone conduction earphone with a vibration supporting arm for a transducer, which comprises the following components: a housing; the front shell is connected with the shell, and a cavity is formed in the shell and the front shell; the transducer is connected with the front shell and is arranged in the cavity; the transducer includes: an electromagnetic assembly connected to the housing for converting an audio signal into an audio vibration of the electromagnetic assembly; the vibrating piece is connected with the electromagnetic assembly and is connected with the front shell, and the vibrating piece is hollow, so that the audio vibration of the electromagnetic assembly is conducted to the front shell through the vibrating piece.

In a first embodiment, the front shell is configured as a soft front shell, and the central area of the vibrating piece is connected with the middle part of the soft front shell.

In a first embodiment, the electromagnetic assembly comprises: a coil connected to the vibrating reed; the magnetic steel structure is connected with the inner wall of the shell and is arranged opposite to the coil; when the electromagnetic assembly receives an audio signal, the coil generates a magnetic field to interact with the magnetic steel structure, so that the audio signal is converted into audio vibration of the coil and is conducted to the central area of the vibration piece.

In a first embodiment, the magnetic steel structure includes: the first magnetic steel is connected with the shell;

one side of the first magnetic steel, which is away from the coil, is provided with a fixing piece, and the supporting structure is connected with the shell through the fixing piece.

In a first embodiment, further comprising: at least one second magnetic steel is plugged in the coil and is arranged opposite to the first magnetic steel.

In a first embodiment, further comprising: a vibration transmission member connecting a middle portion of an inner wall of the soft front case near one side of the vibration plate and a central area portion of the vibration plate; and/or

The soft front shell is provided with an abutting part at one side close to the vibrating piece, and the soft front shell is connected with the central area of the vibrating piece through the abutting part; and/or

And a bulge part is arranged on one side, close to the soft front shell, of the central area of the vibrating piece, and the bulge part is connected with the middle part of the inner wall of the soft front shell.

In a second embodiment, the front shell is configured as a hard front shell, a movable gap is formed between an inner wall of a middle area of the hard front shell facing the vibrating piece and a central area of the vibrating piece, and a peripheral ring portion of the vibrating piece is connected with the hard front shell, so that audio vibration of the electromagnetic assembly is conducted to the hard front shell through the peripheral ring portion of the vibrating piece.

In a second embodiment, the electromagnetic assembly comprises: the magnetic steel structure is connected with the vibration piece; the coil is connected with the inner wall of the shell and is arranged opposite to the magnetic steel structure;

when the electromagnetic assembly receives an audio signal, the coil generates a magnetic field to interact with the magnetic steel structure, so that the audio signal is converted into audio vibration of the magnetic steel structure and is conducted to the central area of the vibration piece.

In a second embodiment, the vibrating piece includes: the vibration surface area part is connected with the magnetic steel structure; zhou Bianjuan, connecting the shell and the hard front shell; and the vibration support arm is connected with the vibration surface area part and the peripheral ring part and can vibrate in the movable gap.

In a second embodiment, a soft adhesive layer is arranged on one side of the hard front shell, which is away from the shell, and is used for contacting with the skin of a wearer; the housing includes: a bottom case; the middle shell is connected with the bottom shell; and the supporting structure is connected with the bottom shell and is abutted with the peripheral ring part.

In a second embodiment, a first positioning column is arranged on one side, facing the hard front shell, of the supporting structure, first positioning holes are respectively formed in two sides of the peripheral ring part, and the first positioning column is connected with the first positioning holes in a matched mode; and/or

The supporting structure deviates from a side of the hard front shell and is provided with a second positioning column, four sides of the fixing piece are respectively provided with a second positioning hole, and the second positioning column is connected with the second positioning holes in a matched mode.

In a second embodiment, further comprising: and the hollow adhesive layer is connected with the annular end part of the hard front shell and the peripheral ring part.

In a first or second embodiment, the lateral end of the middle shell is provided with at least one sound guiding hole, which is directed towards the wearer's ear canal opening and/or which is not directed towards the wearer's ear canal opening.

The beneficial effects are that: the invention provides a bone conduction headset with a vibration support arm for a transducer, wherein the headset of the first embodiment comprises: a housing; a soft front shell connected with the shell; a transducer connected to the soft front shell; the transducer includes: an electromagnetic assembly connected to the housing; a vibrating piece connected with the electromagnetic component, and a peripheral ring part of the vibrating piece is connected with the soft front shell; and the upper end face and the lower end face of the vibration transmission piece are respectively connected with the middle part of the inner wall of the soft front shell and the central area part of the vibration piece, and a movable gap is reserved between the soft front shell and the peripheral ring part of the vibration piece. The first implementation mode is through preceding shell, trembler, vibration transfer spare, electromagnetic component and the setting mode between the casing, and electromagnetic component converts audio signal into audio vibration and conducts to the central area portion of trembler, further conducts to soft preceding shell inner wall middle part, soft preceding shell outer wall middle part through vibration transfer spare to conduct audio vibration to the wearer, thereby realize reducing the purpose of leaking sound when transducer transduction, in order to improve vibration transmission efficiency. The earphone of the second embodiment includes: a housing; a hard front shell connected with the shell; a transducer connected to the hard front shell; the transducer includes: an electromagnetic assembly connected to the housing; and the vibrating piece is connected with the electromagnetic component, the peripheral ring part of the vibrating piece is connected with the hard front shell, and a movable gap is formed between the hard front shell and the central area part and the peripheral ring part of the vibrating piece. The second implementation mode is through the setting mode between preceding shell, trembler, electromagnetic component and the casing, and electromagnetic component converts audio signal into audio vibration and conducts to the central area portion of trembler, further conducts to casing and stereoplasm preceding shell through vibration support arm, peripheral circle portion to conduct audio vibration to the person of wearing, thereby realize reducing the purpose of leaking sound when transducer transduction, in order to improve vibration transmission efficiency.

Drawings

FIG. 1 is an exploded view of a second embodiment of a bone conduction headset with a vibration support arm of the transducer of the present invention;

fig. 2 is an exploded view of the bone conduction headset of the present invention in a state in which the headset includes a cable and a housing;

fig. 3 is a plan sectional view, taken from the center, of the bone conduction headset of the present invention;

fig. 4 is a perspective cross-sectional view of a bone conduction headset of the present invention in another cut-away position;

FIG. 5 is a perspective cross-sectional view of the support structure, vibrating plate, coil and magnetic steel structure of the present invention;

fig. 6 is a perspective view of the support structure and the vibration plate of the present invention;

fig. 7 is a perspective view of a vibrating plate in the first or second embodiment of the present invention;

FIG. 8 is an exploded view of a first embodiment of a bone conduction headset with a vibration support arm of the transducer of the present invention;

FIG. 9 is a schematic view showing the connection of the vibration plate of FIG. 8 to the vibration transmitting member according to the present invention;

fig. 10 is a perspective view of another example of a fixing member in the second embodiment of the present invention;

FIG. 11 is an exploded view of the soft front shell and support of the present invention;

fig. 12 is a schematic view showing a connection between the vibration plate protrusion and the soft front case in the first embodiment of the present invention;

fig. 13 is a schematic view showing connection between the soft front case protrusion and the vibration plate limiting structure in the first embodiment of the present invention;

FIG. 14 is a schematic view of the vibrating plate of FIG. 13 with a limiting structure according to the present invention;

fig. 15 is a schematic view of a vibration plate and a soft front case respectively having a limiting structure according to a first embodiment of the present invention;

fig. 16 is a schematic view of the present invention from another perspective as shown in fig. 15.

Reference numerals illustrate:

100-a housing; 110-bottom shell; 120-middle shell; 121-an annular concave glue groove; 130-a support structure; 131-a first positioning column; 132-a second positioning post; 200-a hard front shell; 201-soft front shell; 210-a hollow glue layer; 211-a vibration transmission member; 300-transducers; 310-vibrating piece; 311—vibration area; 312-peripheral loop; 3121-a first positioning hole; 313-vibrating support arm; 320-electromagnetic assembly; 321-magnetic steel structure; 322-coil; 3221-a first coil; 3222-a mount; 521-coil; 522-a magnetic steel structure; 5221-first magnetic steel; 5222-a mount; 500-support.

Detailed Description

The invention provides a bone conduction earphone with a vibration supporting arm for a transducer, which is used for making the purposes, the technical scheme and the effects of the invention clearer and more definite, and is further described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It should be noted that the terms "mounted" and "connected" are to be construed broadly, and may be, for example, screw mounted or snap mounted, unless specifically stated or limited otherwise; the connection can be fixed or detachable; can be directly connected or indirectly connected through an intermediate medium. When an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should also be noted that in the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus, terms describing the positional relationship in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

In the existing design scheme, the vibrator easily generates air conduction sound when the vibrator vibrates and transduction the audio signal, when the vibrator is worn, the front soft shell of the earphone is easily misplaced and deformed when being pressed, so that the vibration piece connected with the soft rubber piece is influenced, the sound leakage of the transducer is easily caused when the transducer transduces the audio signal, and the transmission efficiency of bone conduction vibration is further influenced.

In order to solve the problems, the invention provides the bone conduction earphone with the vibration supporting arm, which can reduce the air conduction sound generated when the transducer performs vibration transduction on the audio signal, and the front shell adopts hard materials to prevent the dislocation of the vibration piece, so that the leakage sound of the transducer is limited, and the transmission efficiency of bone conduction vibration is improved. It should be noted that, as shown in fig. 1 to 7, which are views illustrating a second embodiment of the earphone according to the present invention, namely, a moving-magnet bone conduction scheme, fig. 8, which is a first embodiment of the earphone according to the present invention, namely, a moving-coil bone conduction scheme, fig. 2, which is an exploded view of a second embodiment of the earphone according to the present invention, wherein the second embodiment of the earphone includes a housing (disposed below a bottom case 110) and a cable (connected to an electromagnetic assembly, and a supporting structure 130 of the housing accommodates the cable portion); fig. 9 is a schematic diagram of a vibration transmission member 211 connecting a central area portion of a vibration piece and a central portion of a soft front case in the first embodiment of the earphone of the present invention.

In the first embodiment (moving coil bone conduction scheme, abbreviated as moving coil scheme or moving coil), since the vibration energy is small, the corresponding front case is a soft front case 201, as shown in fig. 8, 10 and 11.

In the second embodiment (dynamic magnetic bone conduction scheme, abbreviated as dynamic magnetic scheme or dynamic magnetic scheme), the corresponding front shell is a hard front shell 200 due to large vibration energy, as shown in fig. 1, 2, 3 and 4; the bone conduction headset includes: a housing 100; a hard front case 200 connected to the case 100, wherein a chamber is formed between the case 100 and the hard front case 200; a transducer 300 connected to the hard front case 200, the transducer 300 being disposed in the chamber; the transducer 300 comprises:

an electromagnetic assembly 320 coupled to the housing 100 for converting an audio signal into an audio vibration of the electromagnetic assembly 320; the vibration plate 310 is connected to the electromagnetic component 320, and the peripheral ring portion 312 of the vibration plate 310 is connected to the hard front case 200, a movable gap (i.e., a reserved space) is formed between the hard front case 200 and the vibration surface portion 311 of the vibration plate 310, and the vibration plate 310 located at the periphery of the movable gap is hollow, i.e., the vibration support arm 313, so that the audio vibration of the electromagnetic component 320 is conducted to the case 100 and the hard front case 200 through the peripheral ring portion 312 of the vibration plate 310.

Specifically, the hard front case 200 is made of a hard material, such as a plastic piece, and a boss table surface with a boss protruding from the middle of the side of the hard front case 200 facing away from the case 100 is provided with a soft adhesive layer (not shown in the figure, the thickness of the soft adhesive layer may be set to 0.1-2 mm, but is not limited to this thickness, for ensuring vibration transmission efficiency), and the soft adhesive layer is used for contacting with the skin of the wearer, so that when the wearer wears the hard front case 200, the vibration piece 310 is transferred to the case 100 through the peripheral ring portion 312 of the hard front case 200, and further transferred to the hard front case 200 and the boss in the middle, and further audio vibration is transferred to the skin of the wearer through the soft adhesive layer; the soft adhesive layer is made of soft material which is molded twice or surface-mounted on one side of the hard front shell 200 facing the skin direction of the wearer, and the soft adhesive layer can be made of flexible materials such as silica gel, rubber, TPU, TPR, TPE and the like, and is not particularly limited herein, so as to improve the comfort after wearing. Note that since the hard front case 200 of the present invention employs a hard material, vibration transmission efficiency is ensured in the hard material.

The casing 100 is connected with the hard front casing 200 by adopting an adhesive layer bonding and/or fastening structure, and a sealed cavity is formed inside, the transducer 300 is arranged in the cavity, and the electromagnetic component 320 is vibrated and conducted to the central area (namely the vibration area part 311) of the vibration piece 310 in the vibration axial direction of the transducer, so that the vibration piece 310 is conducted to the annular end part of the hard front casing 200 through the Zhou Bianjuan part 312 and conducted to the central boss from the edge so as to conduct audio vibration to a wearer, thereby realizing the purpose of reducing leakage sound during transducer transduction and improving vibration transmission efficiency. It should be noted that: during the vibration of the vibration plate 310, the central area of the vibration plate 310 vibrates in the active gap, so that the central area portion of the vibration plate 310 does not contact the inner wall of the hard front case 200 (i.e., the inner wall surface corresponding to the convex surface of the boss) (note that the central area may not be entirely contacted with the inner wall surface of the hard front case, and may be set to be not contacted or the portion of the central area is contacted), thereby the vibration plate 310 is matched with the hard front case 200 to improve the conduction efficiency of bone conduction vibration.

In the preferred embodiment of the present invention, the above-mentioned technical solution is adopted, and the electromagnetic assembly converts the audio signal into the audio vibration and transmits the audio vibration to the central area of the vibration piece by the arrangement mode among the hard front shell, the vibration piece, the electromagnetic assembly and the shell, and transmits the vibration to the edge of the hard front shell through the edge of the vibration piece, and further transmits the audio vibration from the edge of the hard front shell to the central boss, so as to achieve the purpose of reducing the leakage sound when the transducer is used for transduction, and improve the vibration transmission efficiency.

The following two embodiments are distinguished by coil fixation (i.e. the first moving magnet bone conduction scheme, where the magnet steel structure and the vibrating piece act as vibrating members) or magnet steel structure fixation (i.e. the second moving coil bone conduction scheme, where the coil and the vibrating piece act as vibrating members).

In the second embodiment, as shown in fig. 1 to 7, a coil 322 is used for fixing (moving magnet), and a magnetic steel structure drives a vibration plate as a vibration component to vibrate, and a specific structure and an operation principle of the transducer in the second embodiment of the present invention will be described in detail.

As shown in fig. 1 to 7, the second embodiment is a dynamic magnetic bone conduction scheme, and the electromagnetic assembly 320 includes:

A magnetic steel structure 321 connected to the vibration plate 310;

a coil 322 connected to the inner wall of the housing 100, wherein a gap is formed between the magnetic steel structure 321 and the coil 322 (i.e. the magnetic steel structure 321 hovers above the coil 322 through the connected vibration plate 310), and the coil 322 is disposed opposite to the magnetic steel structure 321;

the electromagnetic assembly 320 generates a varying magnetic field by the coil and the magnetic steel structure when receiving the audio signal, so that the audio signal is converted into the audio vibration of the magnetic steel structure 321 and is conducted to the central area (i.e. the vibration area portion 311 in fig. 7) of the vibration plate 310.

It should be noted that, in the present embodiment, the coil 322 is fixed on the inner wall of the housing 100, the magnetic steel structure 321 and the vibration plate 310 are pre-fixed to form a vibration component (note that the vibration component is different from the electromagnetic component), when the coil 322 is fed with an audio signal, the magnetic steel structure 321 is driven to vibrate by a varying magnetic field generated by the magnetic steel structure 321 and the coil 322 in the electromagnetic component 320 (due to the fixation of the coil 322, the magnetic steel structure 321 is driven to vibrate by an interaction force between the coil 322 and the magnetic steel structure 321), and the magnetic steel structure 321 transmits the vibration to the central area of the vibration plate 310, and because the central area of the vibration plate 310 vibrates in the active gap, the vibration plate is transmitted to the edge portion (i.e. the peripheral ring portion 312) through the connection portion (i.e. the vibration support arm 313) of the vibration plate 310, and the audio vibration is transmitted to the hard front shell 200 through the housing 100.

In this embodiment, as shown in fig. 1, 5 or 7, the vibrating piece 310 includes: a vibration surface area 311 connected to the magnetic steel structure 321; zhou Bianjuan part 312 connecting the case 100 and the hard front case 200; a vibration support arm 313 (curved, flat spring) connecting the vibration area portion 311 and the peripheral ring portion 312, the vibration support arm 313 and the vibration area portion 311 being capable of vibrating in the active gap.

Specifically, as shown in fig. 1 and 4 or 7, the vibration area portion 311 is in a flat key shape, the peripheral ring portion 312 is in a hollow flat key shape, and the vibration support arm 313 includes four curved planar springs, as shown in fig. 7, the vibration transmitted from the magnetic steel structure 321 to the vibration area portion 311 is transmitted to the peripheral ring portion 312 through the planar springs, and then the peripheral ring portion 312 is connected with the edge of the hard front shell 200, so as to transmit the vibration from the edge to the central boss of the hard front shell 200, thereby achieving the effect of improving the vibration transmission efficiency.

In this embodiment, as shown in fig. 1, 3 or 4, the housing 100 includes: a bottom case 110; a middle case 120 connected to the bottom case 110; the supporting structure 130 is connected to the bottom case 110 and abuts against the peripheral ring 312. It should be noted that, the bottom shell 110, the middle shell 120 and the supporting structure 130 may be configured as an integral structure, i.e. a complete structural member, or may be configured in a split manner (as shown in fig. 1), specifically configured according to the definition of the assembly process and the actual requirements, and not specifically limited herein.

Specifically, as shown in fig. 1 or fig. 3, the vibration plate 310 is abutted against the upper end surface of the supporting structure 130 (i.e. the vibration plate is pressed against the supporting structure) by the hard front case 200, the coil 322 is connected to the inner wall of the bottom case 110, and a gap is formed between the magnetic steel structure 321 and the coil 322 (i.e. there is no physical contact between the two), so that an interaction force is generated, so that the magnetic steel structure 321 and the vibration plate 310 vibrate relatively.

In this embodiment, as shown in fig. 1 or fig. 7, a first positioning column 131 is disposed on a side of the support structure 130 facing the front shell (i.e. the hard front shell), and first positioning holes 3121 are disposed on two sides of the peripheral ring portion 312 (i.e. front and rear sides of fig. 7), respectively, and the first positioning column 131 is cooperatively connected with the first positioning holes 3121.

Specifically, two holes (i.e. first positioning holes 3121) are respectively formed on two sides of the peripheral ring portion 312, and two columns (i.e. first positioning columns 131) are respectively formed on two sides (front and rear sides) of the upper end of the supporting structure 130; however, the first positioning hole may not be provided on the peripheral ring portion 312. The fixed area around the vibration plate 310 is limited by the supporting structure 130 or by the hard front case 200.

In this embodiment, as shown in fig. 1, further includes: a hollow glue layer 210 connecting the inner wall of the hard front case 200 and the peripheral ring portion 312.

Specifically, two ends of the hollow adhesive layer 210 are respectively covered and connected by the inner wall of the circumference side of the hard front case 200 and the circumferential ring portion 312, so that the hollow portion of the hollow adhesive layer 210 becomes all or part of the movement gap (reserved space) (at this time, a groove may be formed in the hard front case 200, and the movement gap space formed with the hollow adhesive layer 210 is further enlarged). Further, two holes are respectively formed on the front and rear sides of the hollow adhesive layer 210, so that the first positioning posts 131 pass through the first positioning holes and the holes on the hollow adhesive layer 210.

In this embodiment, as shown in fig. 1 or fig. 3, the magnetic steel structure 321 includes: the first magnetic steel (namely, a magnet) is connected with the central area of the vibration piece or connected with the central area of the vibration piece through a magnetic steel structure 321; the coil 322 is provided with the fixing element 3222 on a side facing away from the first magnetic steel, and the support structure 130 is connected to the bottom case 110 via (i.e., passes through) the fixing element 3222. It should be noted that the magnetic steel structure may be directly fixed on the central area; or the magnetic steel structure is arranged in the U-shaped magnetic steel structure, and the bottom of the U-shaped magnetic steel structure is fixed on the central area, so that the magnetic force lines near the surface of the magnetic steel, which faces the outside of the coil 322, can be partially isolated, the influence of an external magnetic field on the electromagnetic assembly 320 is avoided, and the influence of the magnetic steel field on the external environment is reduced.

Specifically, as shown in fig. 5 or fig. 6, the first magnetic steel is fixedly connected to the inner wall of the bottom shell 110 through a fixing piece 3222, the fixing piece 3222 is in a shape of a vehicle bottom plate and is matched with a limit groove at the lower end of the supporting structure 130, and a mounting groove arranged above the supporting structure 130 is matched with the magnetic steel structure 321, so that the coil 322 is fixed on the bottom shell 110 through the supporting structure 130, the magnetic steel structure 321 is kept in a setting state opposite to the coil 322, and the accuracy of a generated changing magnetic field is ensured when an audio signal is introduced, so that the accuracy of vibration conduction is ensured, the leakage of a transducer is prevented, and the vibration conduction efficiency is improved. It should be noted that, as shown in fig. 6 or fig. 10, the limiting groove at the lower end of the corresponding supporting structure 130 is adapted to the fixing member.

Further, as shown in fig. 1 or fig. 6, a second positioning post 132 is disposed on a side of the support structure 130 facing away from the hard front shell 200, second positioning holes are respectively disposed on four sides of the fixing member 3222, and the second positioning post 132 is cooperatively connected with the second positioning holes. The inner wall of the bottom shell 110 is provided with matching holes corresponding to the second positioning columns 132 one by one, so that the fixing piece and the magnetic steel structure are conveniently fixed on the bottom shell 110.

In a preferred embodiment of the present invention, further comprising: at least one second magnetic steel (not shown) is inserted in the coil 322 and fixed on the upper end surface of the fixing piece 3222, and is disposed opposite to the first magnetic steel.

Specifically, the coil 322 has a hollow portion inside, so that one or more second magnetic steels (i.e., magnets) are disposed in the hollow portion of the coil 322, that is, the second magnetic steels are pre-fixed in the hollow portion of the coil 322 by surface mounting or embedding, and are located on the upper end surface of the fixing member 3222. Further, the coil 322 is fixed on the supporting structure 130 and the bottom case 110, the magnetic steel structure 321 is fixed on the vibration plate 310, the second magnetic steel is fixed on the hollow portion inside the coil 322 and the fixing member 3222, and the peripheral ring portion 312 of the vibration plate 310 is hard-connected or connected to the edge (i.e. side) of the hard front case 200 through the hollow adhesive layer 210.

It should be noted that, in this embodiment, the second magnetic steel is disposed in the hollow portion of the coil 322 on the upper end surface of the fixing member 3222, that is, the second magnetic steel is located in the hollow portion of the coil 322, so that when no audio signal is introduced, the second magnetic steel (indirectly connected to the bottom shell) and the first magnetic steel generate a preset magnetic field (the magnetic field generates an interaction force between the coil 322 integrally fixed with the second magnetic steel and the first magnetic steel), and when an audio signal is introduced, the magnetic steel structure 321 (i.e., the first magnetic steel) and the magnetic field generated by the coil 322 generate vibration under the action of the preset magnetic field, so that the converted audio vibration is more conveniently conducted to the hard front shell 200 through the vibration support arm 313, the peripheral ring portion 312 and the shell 100, thereby improving the conduction efficiency. The second magnetic steel can be arranged in a plurality, and the second magnetic steel is arranged in the middle space of the coil.

In this embodiment, as shown in fig. 1, 3 or 4, a boss is provided on a side of the hard front shell 200 (i.e., the front shell) facing away from the housing 100, and a surface of the boss is a cambered surface (i.e., a convex surface of the boss) protruding from the edge to the center. The middle part of the hard front shell 200 is protruded forward to form a step-shaped protruded table surface, and the whole table surface is an arc surface from the center to the edge so as to ensure the pressure contact of the whole earphone to cheek bones (to ensure the bone conduction effect).

The bottom shell 110 is provided with a clamping groove (not marked in the figure); the middle case 120 connects the bottom case 110 and the hard front 200; the middle shell 120 is provided with a hook (not shown) that mates with the slot, as shown in fig. 1 or fig. 2. It should be noted that, in the present embodiment, the bottom case 110 is provided with a clamping groove 112 for corresponding hooks on the middle case 120; but not limited to, the clamping groove can be arranged on the middle shell, and the corresponding clamping hook can be arranged on the bottom shell.

In the dynamic magnetic scheme, one of the functions of the hollow adhesive layer 210 is to separate the vibration area 311 and the peripheral ring 312 from the middle part of the inner wall of the hard front shell 200, so as to generate a movable gap, and leave a vibration space for the vibration area 311. Dynamic magnetic scheme vibration transmission path: the magnetic steel structure (namely, a magnet), a vibration surface area part, a vibration supporting arm, a peripheral ring part, a first positioning hole, a supporting structure, a middle shell, a shell and a hard front shell.

In the second embodiment, the connection manner and the operation principle of the hard front case 200, the transducer 300 (the vibration plate 310, the magnetic steel structure 321, the coil 322) and the case of the present invention are as follows:

the edge of the vibration plate 310 (i.e., the peripheral ring portion 312) is adhered to the annular end portion of the hard front case 200 by means of a double-sided adhesive tape (i.e., a hollow adhesive layer 210 described below) adhered from the inside of the hard front case 200; a vibration support arm 313 which is bent from the end of the area to the center of the two sides of the periphery is arranged between the peripheral ring part 312 and the middle area part 311 of the vibration plate 310, and the two ends of the vibration plate 310 are in a piece structure with a semicircular radian (namely, are in a flat key shape); the coil 322 of the transducer 300 is fixed to the inside of the bottom shell 110 through a fixing piece 3222, a preset vibration gap (the height of the vibration gap is recorded as h 1) is formed between the magnetic steel structure 321 and the coil 322 in a suspending mode, the vibration gap is arranged in the pre-forming matched transducer supporting structure 130, positioning columns are respectively arranged at two ends of the supporting structure 130, one side of the supporting structure supports the vibrating piece 310 upwards, the other side of the supporting structure is fixedly connected with the hole wall around the fixing piece 3222 downwards, and the supporting structure is fixed into the bottom shell 110 downwards. The vibration amplitude of the vibration area portion 311 is in the range of a movable gap (the height of the movable gap is denoted as h 2) formed between the hard front case 200 and the vibration plate 310, for example, 0.30 mm to 1.00 mm (the movable gap can be seen in fig. 4, the height of the movable gap can be set to 0.30 mm to 1.00 mm, but is not limited to this height), so as to prevent the vibration area portion 311 from directly touching the hard front case 200, and the vibration area portion 311 transmits the audio vibration to the peripheral ring portion 312 through the vibration support arm 313, further to the peripheral fastening structure, and further drives the boss of the hard front case 200 to perform vibration transmission. In the second embodiment, the coil 322 is fixed to the bottom of the cavity (i.e., the mounting groove) of the support structure 130 or directly above the bottom case 110 by the fixing members 3222; the magnetic steel structure 321 and the vibration plate 310 are originally a pre-bonded assembly (namely, a dynamic magnetic pre-assembly magnetic steel assembly, the magnetic steel structure 321 is matched with the vibration plate 310), and are fixed on a boss with matched appearance extending out of the inner wall of the supporting structure 130 through positioning holes at two sides and a peripheral ring part 312; the peripheral ring part 312 of the vibration piece 310 faces the skin side of the wearer, is attached with a double-sided adhesive tape (namely a hollow adhesive layer 210) matched with the shape of the peripheral ring part 312, and then is arranged on the bottom end surface of the hard front shell 200 to form a movable magnetic front cover assembly (a magnetic steel structure 321, the vibration piece 310, the hollow adhesive layer 210 and the hard front shell 200); in the moving magnet front cover assembly, the vibrating piece 310 is bonded with the hard front shell 200 through a hollow adhesive layer, a movable gap is generated between the vibrating piece 310 and the hard front shell 200, and the movable gap absorbs vibration of the vibration surface area 311 and the vibration support arm 313 when the finished earphone works, so that the vibrating surface area is prevented from contacting and colliding with the inner side wall of the hard front shell 200; the coil 322 is fixedly abutted to the bottom shell 110 through the supporting structure 130, the middle shell 120 is adhered to the bottom shell 110 through a buckle and a positioning column and assisted by glue, so that a movable magnetic rear cover assembly (the bottom shell 110, the middle shell 120, the coil 322 (the first coil 3221 and the fixing piece 3222) and the supporting structure 130) is formed; the dynamic magnet front cover component is bonded with the dynamic magnet rear cover component into a whole through the preset adhesive materials (including bonding glue and double-sided bonding glue) in the annular concave glue groove 121 at the upper part of the middle shell 120, namely a complete earphone is bonded; in the assembled earphone, an air gap is reserved between the coil 322 and the magnetic steel structure 321, and the vibration of the magnetic steel structure 321 is absorbed when the finished earphone works. In the second embodiment, when the earphone is operated in the audio frequency full-frequency range (e.g., 20Hz to 20000 Hz) under the condition of setting the maximum sound volume, the vibration surface area 311, the vibration support arm 313 and the magnetic steel structure 321 cannot collide with other structures and components when vibrating.

Further, in the second embodiment, when the earphone works in the audio frequency full-frequency range (e.g. 20 Hz-20000 Hz) under the condition of setting the maximum sound volume, the vibration amplitude of the vibration area portion 311 is denoted as h3, the vibration gap height h1 of the suspension between the magnetic steel structure 321 and the coil 322, the activity gap height h2 formed by the vibration area portion 311 and the inner wall of the hard front case 200, and the quantization relationship between the three may be expressed as: quantitative relation 1: h1< 0.5xh3

Quantitative relation 2: h2< 0.5xh3

Quantitative relation 3: h1+h2< h3

I.e. the vibration gap height h1 is smaller than half the vibration amplitude h3, the movable gap height h2 is smaller than half the vibration amplitude h3, and the sum of the vibration gap height h1 and the movable gap height h2 is smaller than the vibration amplitude h. The three quantization relations need to meet the requirements simultaneously.

In another embodiment, the vibrating members (vibrating piece 310 and coil 321) may be provided separately, or at least one air conduction transducer (including moving coil horn, MEMS horn) may be connected in parallel and/or in series.

In one embodiment, the side ends of the center housing (i.e., the sides of housing 120 in FIG. 1) are provided with at least one sound guiding aperture that is oriented toward the wearer's ear canal opening so that sound waves generated by transducer 300, and/or sound waves generated by parallel air conducting transducers, will propagate through the sound guiding aperture toward the wearer's ear canal opening.

In one embodiment, the side end of the center housing (i.e., the side of housing 120 in fig. 1) is provided with at least one sound guiding aperture that is not oriented toward the other side of the wearer's ear canal opening to adjust the acoustic characteristics within the earpiece. In the embodiment, a plurality of sound guide holes are adopted, and the sound guide holes facing the auditory meatus are designed to mainly transmit sound waves; the sound guide holes, which are not oriented towards the ear canal opening, are designed to regulate the sound pressure in the earpiece of the earphone, including other acoustic characteristics.

In a first embodiment (i.e. a moving coil solution), as shown in fig. 8 to 10, the bone conduction headset comprises: a housing 100; a front case connected to the case 100, and a chamber is formed in the case and the front case; a transducer 300, the transducer 300 being disposed within the chamber;

the transducer 300 comprises: an electromagnetic assembly 320 for converting an audio signal into an audio vibration of a coil 521 in said electromagnetic assembly 320; the vibration plate 310 is connected to the coil 521, and the vibration area 311 of the vibration plate 310 is connected to the front case through a vibration transmission member 211 (having a hard and lightweight property), and the vibration plate 310 is hollowed out so that the audio vibration of the electromagnetic component is transmitted to the vibration transmission member 211 through the center area (i.e., the vibration area 311) of the vibration plate 310 and further transmitted to the front case.

Specifically, the front case is configured as a soft front case 201, and the central area of the vibration plate 310 is connected to the inner wall of the middle portion of the soft front case 201, so that the audio vibration of the electromagnetic assembly is conducted to the middle portion of the soft front case through the central area of the vibration plate.

In another embodiment, referring to fig. 9 and 12, the vibration area portion 311 has a protruding portion on a side near the soft front shell 201, and the protruding portion is connected to the inner wall of the middle portion of the soft front shell 201. Specifically, the vibration plate 310 may be configured as a planar structure (i.e. the above embodiment), or may be shaped, such as a central region (i.e. the vibration area portion 311) is shaped to be convex (i.e. a convex portion) facing the skin direction of the wearer, so that the vibration is conducted to the soft front case 201 through the central region and the convex portion of the vibration plate 310.

In another embodiment, a hole is formed in the central area (i.e. the vibration area portion 311) of the vibration plate 310, and a vibration transmission member (such as PC, ABS, PC +abs, siren, nylon, hardware, glass fiber) with a positioning post matching with the hole of the vibration plate is added, one side of the vibration transmission member with the positioning post is adhered to the central area of the vibration plate 310, and the other side is adhered to the inner side of the soft front shell 201 to transmit vibration.

In another embodiment, referring to fig. 15 and fig. 16, a vibration transmission member with a concave shape matching with the convex limiting structure is added on the periphery of the central region (i.e. the vibration area portion 311) of the vibration plate 310 and toward the skin of the wearer; or a concave part limiting structure is arranged on the periphery of the central area of the vibrating piece 310 towards the skin direction of the wearer, and a vibration transmission piece matched with the concave part limiting structure and protruding is additionally arranged.

In another embodiment, referring to fig. 13 and 14, a vibration transmission member with a limit structure matching with the edge feature is added by utilizing the edge feature around the central region (i.e. the vibration area portion 311) of the vibration plate 310.

In the first embodiment, the first magnetic steel 5221 is fixed on the fixing member 5222 to form a magnetic steel structure 522, the magnetic steel structure 522 is mounted and fixed on the bottom shell 110 in an abutting manner through the supporting structure 130, the middle shell 120 is bonded on the bottom shell 110 through a buckle and a positioning column with the assistance of glue to form a moving coil magnetic steel rear cover assembly (including the bottom shell 110, the middle shell 120, the supporting structure 130, the first magnetic steel 5221 and the fixing member 5222); the coil 521 and the vibrating piece 310 are originally a pre-bonded component, namely a moving coil pre-assembled coil component (including the coil 521 and the vibrating piece 310); the moving coil pre-assembled coil assembly is connected with the soft front shell 201 through the vibration transmission piece 211 to form a moving coil front cover assembly (comprising a coil 521, a vibrating piece 310, the vibration transmission piece 211 and the soft front shell 201); in the moving coil front cover assembly, the vibrating piece 310 is bonded with the soft front shell 201 through the vibration transmission piece 211, a movable gap is generated between the vibrating piece 310 and the soft front shell 201, and the movable gap absorbs the vibration of the vibration support arm 313 when the finished earphone works, so that the vibration support arm is prevented from contacting and colliding with the inner side wall of the soft front shell 201; the moving-coil front cover assembly is bonded with the moving-coil rear cover assembly into a whole through a preset adhesive material (including bonding glue and double-sided bonding glue) in an annular concave glue groove 121 at the upper part of the middle shell 120, namely, a complete earphone is bonded; in the assembled earphone, an air gap is reserved between the coil 521 and the first magnetic steel 5221, so that vibration of the coil 521 is absorbed when the finished earphone works.

In the first embodiment, when the earphone is operated in the full frequency range of the audio frequency (e.g., 20Hz to 20000 Hz) under the maximum sound volume setting condition, the vibrating support arm 313 cannot collide with the soft front case 201 and other structures and components, and the coil 521 cannot collide with the first magnetic steel 5221 and other structures and components.

Further, in the first embodiment, when the earphone works in the audio frequency full frequency range (e.g. 20 Hz-20000 Hz) under the condition of setting the maximum sound volume, the amplitude of the coil 521 towards the first magnetic steel 5221 is denoted as h4; when the earphone is in a static state, the gap between the coil 521 and the first magnetic steel 5221 is recorded as h5; the relationship between h4 and h5 can be expressed as: h4< h5, i.e., the amplitude h4 of the coil 521 toward the first magnetic steel 5221, is smaller than the static gap h5 between the coil 521 and the first magnetic steel 5221.

As shown in fig. 8, the electromagnetic assembly 320 includes: a coil 521 connected to the vibrating reed 310; the magnetic steel structure 522 is connected with the inner wall of the casing 100, a gap is formed between the magnetic steel structure 522 and the coil 521 (i.e. the coil 521 is suspended above the magnetic steel structure 522 by the connected vibration plate 310), and the magnetic steel structure 522 is arranged opposite to the coil 521;

when the electromagnetic component 320 receives an audio signal, the coil 521 and the magnetic steel structure 522 act to generate a varying magnetic field, so that the audio signal is converted into audio vibration of the coil 521 and is conducted to the central area (i.e. the vibration area portion 311) of the vibration plate 310.

Specifically, the vibration plate 310 includes: a vibration area 311 connected to the coil 521; zhou Bianjuan part 312 connecting the case 100 and the soft front case 201; a vibration support arm 313 (curved, flat spring) connects the vibration surface area 311 and the peripheral ring 312.

Further, the earphone further includes: a vibration transmission member 211 connecting the middle portion of the inner wall of the soft front case 201 and the central area portion (i.e., the vibration area portion 311) of the vibration plate 310;

an abutting part is arranged on one side of the soft front shell 201 close to the vibration piece 310, and the middle part of the inner wall of the soft front shell 201 is connected with the central area of the vibration piece through the abutting part; and/or

The vibrating piece 310 has a protruding portion on a side close to the soft front case 201, and the protruding portion is connected to the middle portion of the inner wall of the soft front case.

Specifically, in the moving coil scheme, the connection rigidity of the vibration supporting arm 313 is weaker than that in the moving magnet scheme, and the vibration transmission path thereof is: the vibration area part 311 is the middle part of the inner wall of the soft front shell 201 and the middle part of the outer wall of the soft front shell 201; the vibration surface area 311, the vibration support arm 313 and the peripheral ring 312 are located on the same plane, the vibration support arm 313 needs to be suspended, and the vibration support arm is not contacted with other components up and down. At this time, the periphery of the soft front case 201 presses the Zhou Bianjuan part 312 (the soft front case may also use internal rubber-coated hardware to strengthen the periphery to press the Zhou Bianjuan part).

Therefore, optionally, on the premise of retaining the hollow adhesive layer 210 in the dynamic magnetic scheme, the vibration supporting arm 313 is separated from the soft front shell 201, or after the annular end surface of the soft front shell 201 connected with the middle shell 120 is enlarged in the axial direction, the annular end surface is connected with an annular concave adhesive groove at the upper part of the middle shell 120, so that the gap between the inner wall of the soft front shell 201 and the vibration supporting arm 313 is enlarged.

As shown in fig. 8, the magnetic steel structure 522 includes a first magnetic steel 5221 and a fixing member 5222, wherein the first magnetic steel 5221 is fixed on the fixing member 5222 and faces the coil 521; and/or

The first magnetic steel 5221 is provided with a fixing member 5222 at a side facing away from the coil 521, and the support structure 130 is connected to the housing 100 through the fixing member 5222.

In a first embodiment, further comprising: at least one second magnetic steel (second magnetic steel) is inserted into the coil 521, and is fixed to the vibration surface area 311 of the vibration plate 310, facing the first magnetic steel 5221, and disposed opposite to the first magnetic steel 5221.

The first embodiment is different from the second embodiment in the following points:

the first and front shells are different in material characteristics; in the first embodiment, the front case is provided as a soft front case 201, and in the second embodiment, the front case is provided as a hard front case 200;

the second, magnetic steel and coil set up relative position and fixed mode are different; in the first embodiment, the coil 521 is fixed on the vibration area 311 of the vibration plate 310, the first magnetic steel 5221 is disposed on the fixing member 5222 and is fixed on the bottom case 110 by the fixing member 5222, and at this time, the coil 521 drives the vibration area 311 to vibrate mainly; in the second embodiment, the first coil 3221 is disposed on the fixing member 3222 and is fixed on the bottom shell 110 by the fixing member 3222, the magnetic steel is disposed in the magnetic steel structure 321, and the magnetic steel structure 321 is fixed on the vibration area portion 311 of the vibration piece 310, and at this time, the magnetic steel structure 321 drives the vibration area portion 311 to vibrate mainly;

Third, the connection mode of the front case and the vibration plate 310 is different; in the first embodiment, the vibration area portion 311 of the vibration plate 310 is connected to the middle part of the inner wall of the soft front case 201 through the vibration transmission member 211, or a protrusion portion is provided on one side of the vibration area portion 311 facing the soft front case 201 and/or a protrusion portion is provided on the middle part of the inner wall of the soft front case 201, and is adhered to the soft front case 201, and a gap is formed between the vibration support arm 313 and the inner wall of the soft front case, and in the second embodiment, the peripheral ring portion 312 of the vibration plate 310 is adhered to the annular end surface of the bottom of the hard front case 200 through the hollow adhesive layer 210, and a gap is formed between the vibration support arm 313, the vibration area portion 311 and the inner wall of the hard front case 200;

fourth, the intensity arrangement of the vibration supporting arms 313 is different; the vibration energy of the first embodiment is smaller than that of the second embodiment, in which the primary function of the vibration support arm 313 is to set the position of the coil 521, and in the second embodiment, the primary function of the vibration support arm 313 is to transmit the vibration of the vibration surface area portion 311 to the peripheral ring portion 312, and therefore, the strength arrangement of the vibration support arm 313 in the first embodiment is weaker than that in the second embodiment;

Fifth, vibration transmission paths are different; in the first embodiment, the vibration transmission path: coil 521-vibration area 311-vibration transmission member 211-inner wall middle of soft front case 201-outer wall middle of soft front case 201-skin of wearer, in the second embodiment, vibration transmission path: the magnetic steel structure 321, the vibration surface area 311, the vibration supporting arm 313, the peripheral ring 312, the shell 100, the hard front shell 200 and the skin of a wearer;

the first embodiment has the same points as the second embodiment, and has the same points as the first embodiment except for the structural points: in the first embodiment, at least one magnetic steel may be disposed in the hollow position of the coil 521 and fixed to the vibration surface area 311 of the vibration plate 310, opposite to the first magnetic steel 5221; in the second embodiment, at least one magnetic steel may be disposed in the hollow position of the first coil 3221 and fixed on the fixing member 3222, opposite to the magnetic steel structure 321.

In both cases, the support structure 130 may be designed as a unitary structure with the middle case 120, and further, the support structure 130, the middle case 120, and the bottom case 110 are designed as one unitary structure.

In the first embodiment (moving coil), the presence of a separate support structure 130 is hardly required. At this time, the presence of the support structure 130 causes an increase in volume and complicated assembly. When the support structure 130 is designed as a single integral structure in cooperation with the middle shell 120, or the support structure 130, the middle shell 120 and the bottom shell 110 are designed as a single integral structure, positioning posts opposite to the positioning holes of the Zhou Bianjuan part 312 are reserved on the integral structure, and the soft front shell 201 of the embedded support 500 is adhered to the annular concave glue groove 121 at the top of the middle shell 120 and presses the peripheral ring part 312. Note that this approach differs from the soft front shell 201 of the in-line support 500 described below being connected to the support structure 130.

In the first embodiment, as shown in fig. 11, a supporting member 500 is embedded in the soft front shell 201, a corner surface is provided on one side of the soft front shell 201 close to the bottom shell, the cross section of the supporting member 500 is L-shaped, and two sides of the supporting member 500 are respectively connected to the joint surface and the corner surface. The corner surface of the soft front shell 201 is in a Z shape which rotates anticlockwise by 70-120 degrees, the inner surface of the supporting piece 500 is a right-angle surface or an inclined angle surface, one end surface of the supporting piece 500 is connected with the corner surface of the soft front shell 201, the other end surface of the supporting piece 500 is embedded in the groove outer ring of the soft front shell 201, the rear surface of the outer surface of the supporting piece 500 is connected with the annular concave glue groove at the upper part of the middle shell 120 through glue, the inner surface of the outer surface of the supporting piece 500 faces the inner part of the cavity, the side wall of the soft front shell 201 is effectively supported through the supporting piece 500, the connection strength between the soft front shell 201 and the shell 100 is improved, and the transmission efficiency of bone conduction vibration is improved. It should be noted that the metal component (i.e., the support 500) is embedded in the bottom end surface of the soft front case 201 by using a two-shot molding encapsulation process.

It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims

1. A bone conduction headset having a vibration support arm for a transducer, comprising:

a housing;

the front shell is connected with the shell, and a cavity is formed in the shell and the front shell;

the transducer is connected with the front shell and is arranged in the cavity;

the transducer includes:

an electromagnetic assembly connected to the housing for converting an audio signal into an audio vibration of the electromagnetic assembly;

the vibrating piece is connected with the electromagnetic assembly and is connected with the front shell, and the vibrating piece is hollow, so that the audio vibration of the electromagnetic assembly is conducted to the front shell through the vibrating piece.

2. The transducer of claim 1, wherein the front housing is a soft front housing, and wherein the central area of the vibrating piece is connected to a central portion of the soft front housing such that audio vibrations of the electromagnetic assembly are conducted through the central area of the vibrating piece to the central portion of the soft front housing.

3. The transducer of claim 1, wherein the front housing is a rigid front housing having a clearance between an inner wall of a middle region of the rigid front housing facing the diaphragm and a central region of the diaphragm, and wherein a peripheral rim portion of the diaphragm is connected to the rigid front housing such that audio vibrations of the electromagnetic assembly are conducted to the rigid front housing through the peripheral rim portion of the diaphragm.

4. The bone conduction headset with a vibrating support arm of claim 2, wherein the electromagnetic assembly comprises:

a coil connected to the vibrating reed;

the magnetic steel structure is connected with the inner wall of the shell and is arranged opposite to the coil;

when the electromagnetic assembly receives an audio signal, the coil and the magnetic steel structure act to generate a magnetic field, so that the audio signal is converted into audio vibration of the coil and is conducted to the central area of the vibration piece.

5. The bone conduction headset with a vibration support arm of claim 3, wherein the electromagnetic assembly comprises:

the magnetic steel structure is connected with the vibration piece;

The coil is connected with the inner wall of the shell and is arranged opposite to the magnetic steel structure;

when the electromagnetic assembly receives an audio signal, the coil and the magnetic steel structure act to generate a magnetic field, so that the audio signal is converted into audio vibration of the magnetic steel structure and is conducted to the central area of the vibration piece.

6. The bone conduction headset with a vibration support arm of claim 5, wherein a peripheral ring of the vibration plate connects the housing and the rigid front shell;

the vibrating piece further includes:

the vibration surface area part is connected with the magnetic steel structure;

and the vibration support arm is connected with the vibration surface area part and the peripheral ring part and can vibrate in the movable gap.

7. The bone conduction headset with a vibration support arm of claim 6, wherein a side of the rigid front shell facing away from the housing is provided with a soft gel layer for contact with the skin of the wearer; the housing includes:

a bottom case;

the middle shell is connected with the bottom shell;

and the supporting structure is connected with the bottom shell and is abutted with the peripheral ring part.

8. The transducer of claim 4, wherein the magnetic steel structure comprises:

The first magnetic steel is connected with the shell;

one side of the first magnetic steel, which is away from the coil, is provided with a fixing piece, and the fixing piece is connected with the shell.

9. The bone conduction headset with a vibration support arm of claim 8, further comprising:

at least one second magnetic steel is plugged in the coil and is arranged opposite to the first magnetic steel.

10. The bone conduction headset with a vibration support arm according to claim 7, wherein a first positioning column is arranged on one side of the support structure facing the front shell, first positioning holes are respectively arranged on two sides of the peripheral ring part, and the first positioning column is connected with the first positioning holes in a matching manner; and/or

The supporting structure deviates from the front shell one side is equipped with the second reference column, the four sides of mounting are equipped with the second locating hole respectively, the second reference column with the cooperation of second locating hole is connected.

11. The bone conduction headset with a vibration support arm of claim 6, further comprising:

and the hollow adhesive layer is connected with the inner wall of the hard front shell and the peripheral ring part.

12. The bone conduction headset with a vibration support arm of claim 2, further comprising:

A vibration transmission member connecting a middle portion of an inner wall of the soft front case near one side of the vibration plate and a central area portion of the vibration plate; and/or

13. The bone conduction headset with a vibration support arm of claim 1, wherein the side end of the middle shell is provided with a sound guiding hole, the sound guiding hole being oriented towards the wearer's ear canal opening and/or the sound guiding hole being non-oriented towards the wearer's ear canal opening.