CN220457587U - Bone conduction sounding device and wearable equipment - Google Patents

Abstract

The utility model discloses a bone conduction sounding device and wearable equipment, and relates to the technical field of bone conduction. The housing assembly includes an inner cavity and a first open end in communication with the inner cavity; the vibration component is movably arranged in the inner cavity; the elastic sheet is connected between the shell component and the vibration component; the face lid is connected in first open end, the face lid adopts flexible material to make, the face lid with vibration subassembly relative interval sets up to after the pressurized elastic deformation to with vibration subassembly transmission connection. According to the bone conduction sounding device, when the face cover is contacted with the face skin, the bone conduction sounding device can deform according to the shape adaptability of the skin, so that the bone conduction sounding device can be attached to the face skin more tightly, the attaching gap between the face cover and the skin can be reduced, and vibration energy can be transferred more efficiently.

Description

Bone conduction sounding device and wearable equipment

Technical Field

The utility model relates to the technical field of bone conduction, in particular to a bone conduction sounding device and wearable equipment.

Background

The bone conduction earphone comprises a bone conduction sounding device capable of generating vibration, and when the earphone is worn, the vibration of the bone conduction sounding device is transmitted to the face of a person and is transmitted through the skull bone, so that the person can hear the sound.

Fig. 14 and 15 are two embodiments of bone conduction sounding devices that are currently common, and fig. 14 shows a bone conduction sounding device that is a moving magnet type, and includes a housing 1, a spring plate 10 connected to the housing 1, a magnetic bowl 11 connected to the spring plate 10, an upper magnet 12 disposed in the magnetic bowl 11, a coil 13 disposed below the upper magnet 12, a lower magnet 14 disposed in the coil 13, and an end cover 17 for contacting the skin of the face. The upper magnet 12 and the lower magnet 14 are opposite in opposite polarity. After the coil 13 is electrified, the vibration assembly formed by the magnetic conduction bowl 11 and the upper magnet 12 interacts with the changing magnetic field generated by the coil 13 to vibrate, and the elastic sheet 10 can drive the magnetic conduction bowl 11 and the upper magnet 12 to reset. The end cover 17 is made of hard materials, and vibration generated by the vibration component is transmitted to the end cover 17 through the outer edge of the elastic sheet 10 and then transmitted to the skin of the face, so that a person can hear the sound.

Fig. 15 shows a moving coil bone conduction sounding device, which includes a housing 1, a spring 10 connected to the housing 1, a bracket 15 connected to the spring 10, a coil 13 connected to the bracket 15, a lower magnet 14 provided in the housing 1, and an end cap 17 for contacting the skin of the face. The lower magnet 14 is fixed with the shell 1, the upper end of the lower magnet extends into the coil 13, and after the coil 13 is electrified, interaction force is generated between the lower magnet 14 and the coil 13, so that a vibration assembly formed by the coil 13 and the bracket 15 vibrates. The spring plate 10 can drive the coil 13 and the bracket 15 to reset. Vibrations generated by the vibration assembly are also transmitted outwardly through the rigid end cap 17.

The vibration subassembly of present bone conduction sound generating mechanism installs in the stereoplasm shell, on the one hand, through shell fragment 10 and end cover 17 transmission vibration, the transmission path is longer, and the junction inevitably has the installation clearance when the assembly, consequently can not produce energy loss when vibrating, is difficult to produce fine laminating between stereoplasm end cover 17 and the human skin simultaneously, and the existence in laminating gap makes energy transmission loss further aggravate, and sound effect further reduces.

Another problem is that when the vibration component vibrates, not only the end cover is driven to vibrate, but also the casing 1 is integrally vibrated, and the air vibration sound is caused by the vibration of the end cover 17 and the casing 1 (particularly, the back plate 16 opposite to the end cover 17 of the casing 1), so that the bone conduction sound generating device leaks sound, and the user experience is affected.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The utility model aims to provide a bone conduction sounding device and wearable equipment, and the bone conduction sounding device is higher in energy transmission efficiency.

In order to achieve the above object, according to one aspect, the present utility model provides a bone conduction sound generating apparatus, comprising:

a housing assembly including an inner cavity and a first open end in communication with the inner cavity;

the vibration assembly is movably arranged in the inner cavity;

the elastic sheet is connected between the shell component and the vibration component; the method comprises the steps of,

the surface cover is connected with the first opening end, the surface cover is made of flexible materials, is arranged at intervals opposite to the vibration assembly, and can be elastically deformed to be in transmission connection with the vibration assembly after being pressed.

Further, the elastic sheet comprises an outer support connected with the shell component, an inner support connected with the vibration component and an elastic arm connected between the outer support and the inner support, and the vibration component is connected with the inner support.

Further, the face cover is elastically deformed to abut against the inner bracket or the vibration assembly after being pressed.

Further, the bone conduction sounding device also comprises a base plate connected with the face cover, the base plate is made of hard materials, and after the face cover is pressed, the base plate is abutted with the inner support or the vibration assembly.

Further, the vibration assembly comprises a magnet and two magnetic conduction pieces respectively connected with two ends of the magnet, wherein magnetic poles of the magnet are arranged along the vibration direction of the vibration assembly, and polarities of the two ends of the magnet, which are connected with the magnetic conduction pieces, are opposite; the bone conduction sounding device comprises two coils, the two coils are respectively wound on the peripheries of the two magnetic conduction pieces, and the directions of current introduced into the two coils are opposite.

Further, the cover includes a peripheral portion connected to the housing assembly, a central portion connected to the vibration assembly, and an elastic portion connected between the peripheral portion and the central portion, the elastic portion including at least one arch protruding toward a side where the vibration assembly is located.

Further, the face cover comprises a plurality of elastic parts which are arranged at intervals; alternatively, the face cover includes an annular elastic portion, and the face cover seals the first open end.

Further, an end of the housing assembly opposite the first open end is closed.

Further, the housing assembly further comprises a second open end communicated with the inner cavity, the first open end and the second open end are respectively located at two ends of the housing assembly, and the second open end is also provided with the face cover.

Further, both the face covers can be elastically deformed to be in transmission connection with the vibration component; or a connecting piece is connected between one of the two surface covers and the vibration component, and the other surface cover can be elastically deformed to be in transmission connection with the vibration component.

Further, the bone conduction sounding device comprises two elastic sheets, and the two elastic sheets are respectively connected to two ends of the vibration component.

In another aspect, the utility model provides a wearable device comprising the bone conduction sound emitting apparatus as described above.

Compared with the prior art, the utility model has the following beneficial effects:

according to the bone conduction sounding device, the face cover is made of the flexible material, and when the bone conduction sounding device is in contact with the skin of the face, the face cover can deform according to the pressure adaptability of the skin, so that the bone conduction sounding device can be attached to the skin of the face more tightly, the attaching gap between the face cover and the skin can be reduced, and therefore vibration energy can be transferred more efficiently. Further, the face cover of bone conduction sound generating mechanism is connected with vibration subassembly transmission after being pressed and warp, and vibration subassembly's energy is direct to the skin through the face cover transmission, can effectively shorten vibration energy transmission's route, improves vibration energy's transmission efficiency, and simultaneously when the face cover is not pressed, because the face cover breaks away from with vibration subassembly, is little by vibration subassembly's influence, therefore, its vibration is little, can effectively alleviate the phenomenon of leaking sound.

Drawings

Fig. 1 is a schematic structural diagram of a bone conduction sound emitting device in embodiment 1 of the present utility model.

Fig. 2 is a top view of the bone conduction sound emitting apparatus shown in fig. 1.

Fig. 3 is a cross-sectional view taken along section line A-A in fig. 2.

Fig. 4 is a schematic diagram of the magnetic field of a magnet according to one embodiment of the utility model passing through a coil.

Fig. 5 is a schematic structural diagram of a spring in embodiment 1 of the present utility model.

Fig. 6 is a schematic diagram of the connection between the spring and the magnetic conductive member in embodiment 1 of the present utility model.

Fig. 7 is a schematic view of the bone conduction sound emitting apparatus shown in fig. 3 after the face cover is pressed.

Fig. 8 is a schematic view of the structure of the face cover in embodiment 1 of the present utility model.

Fig. 9 is a cross-sectional view of the face cover shown in fig. 8.

Fig. 10 is a cross-sectional view of a face cover of an embodiment of the present utility model, in which the resilient portion has two arcuate portions.

Fig. 11 is a schematic diagram of the structure of the frame and the circuit board in embodiment 1 of the present utility model.

Fig. 12 is a schematic structural diagram of a bone conduction sound emitting apparatus in embodiment 2 of the present utility model.

Fig. 13 is a schematic structural diagram of a bone conduction sound emitting apparatus in embodiment 3 of the present utility model.

Fig. 14 is a schematic structural diagram of a bone conduction sound emitting device of the prior art.

Fig. 15 is a schematic structural view of a moving coil bone conduction sounding device in the prior art.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases 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 of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As shown in fig. 1 to 3, the present utility model provides a bone conduction sounding device, which includes a housing assembly 2, a vibration assembly 3, a spring plate 5 and a face cover 6.

The housing assembly 2 is provided with an inner cavity 20 and a first opening end 21 communicated with the inner cavity 20, and the vibration assembly 3 is movably arranged in the inner cavity 20, specifically, is elastically connected with the housing assembly 2 through a spring piece 5 and can vibrate relative to the housing assembly 2 after being stressed.

The vibration unit 3 may be driven to vibrate by referring to a related structure in the related art, for example, a moving-magnet structure shown in fig. 14 or a moving-coil structure shown in fig. 15.

In this embodiment, the vibration assembly 3 includes a magnet 30 and two magnetic conductive members 31 respectively connected to two ends of the magnet 30, wherein the magnet 30 is made of a permanent magnetic material, and the magnetic conductive members 31 are made of a magnetic conductive material. The bone conduction sounding device further comprises two coils 4 which respectively encircle the peripheries of the two magnetic conduction pieces 31, the magnetic conduction pieces 31 can guide the magnetic induction lines to change directions, so that the magnetic induction lines more intensively penetrate through the coils 4, the magnetic flux B value penetrating through the voice coil and the magnetic field utilization efficiency are improved, the driving force and the acceleration of the device are further improved, and the loudness of the bone conduction vibrator is finally increased. As shown in fig. 4, the upper and lower ends of the magnet 30 are respectively provided with two poles with opposite polarities, and the coil 4 is wound around the two poles of the magnet 30 and the outside of the magnetic conductive member 31. The magnetic induction line (the magnetic induction line is shown by the dotted line with an arrow in fig. 4) emitted from the N pole of the magnet 30 passes through the coil 4 at the upper end first, and then returns to the S pole of the magnet 30 through the coil 4 at the lower end. When the magnetic resonance type electromagnetic coil works, the directions of currents which are fed into the upper coil 4 and the lower coil 4 are opposite, so that the magnet 30 is simultaneously stressed by upward or downward force according to the principle of electromagnetic force, and when alternating current is fed into the coils 4, the magnetic force which is stressed by the magnet 30 is also alternately changed, so that the upper vibration and the lower vibration occur.

When the vibration assembly 3 deviates from the balance position, the elastic sheet 5 is elastically deformed, so that a driving force for driving the vibration assembly 3 to return to the balance position is generated, that is, the elastic sheet 5 can drive the vibration assembly 3 to reset.

As a preferred embodiment, as shown in fig. 5, the elastic sheet 5 includes an outer bracket 50, an inner bracket 51, and an elastic arm 52 connected between the outer bracket 50 and the inner bracket 51. The outer bracket 50 is preferably annular and is fixedly connected to the housing assembly 2, the inner bracket 51 is connected to the vibration assembly 3 and moves synchronously with the vibration assembly 3, and the elastic arms 52 are elastically deformed to provide a restoring force when the inner bracket 51 is deviated from the original position. The shape and number of the elastic arms 52 are not limited, in this embodiment, the number of the elastic arms 52 is two, and the elastic arms 52 are spiral, and the spiral elastic arms 52 can fully utilize the space between the inner support 51 and the outer support 50, so that the elastic arms 52 have a longer length, the elastic deformation is larger, and the amplitude of the vibration component 3 can also be designed to be larger.

As shown in fig. 3 and 6, the magnetic conductive member 31 is provided with a convex boss 310, and is connected with the inner bracket 51 through the boss 310, and the outer dimension of the boss 310 is smaller, so that after the boss is connected with the inner bracket 51, the influence on the deformation of the elastic arm 52 is smaller. Preferably, the boss 310 is not disposed directly opposite the resilient arm 52 so as not to interfere with resilient deformation of the resilient arm 52.

The face cover 6 is made of flexible materials, such as silica gel, rubber and other flexible skin-friendly materials. The face cover 6 is connected to and covers the first open end 21, and when the face cover 6 is pressed, for example, in contact with human skin (typically facial skin), the face cover 6 will elastically deform due to the squeezing of the skin, the face cover 6 deforming towards the vibrating assembly 3 and deforming into driving connection with the vibrating assembly 3, such that vibrations of the vibrating assembly 3 can be transmitted through the face cover 6. Since the energy of the vibration assembly 3 is transferred directly from the face cover 6 to the skin, the transfer of vibration energy is more efficient.

It should be noted that, when the bone conduction sound generating apparatus is used, since the face cover 6 is made of a flexible material, when the face cover 6 is in contact with the facial skin, the face cover 6 will be deformed adaptively due to being pressed by the skin, so that the face cover 6 is more tightly attached to the facial skin, thereby reducing or even eliminating the gap between the face cover 6 and the skin, and when the vibration of the vibration assembly 3 is transmitted to the skin through the face cover 6, the loss of vibration energy is smaller, and meanwhile, the leakage sound can be reduced due to the absence of the integral vibration of the hard end cover.

As a preferred embodiment, the cover 6 deforms to abut against the elastic piece 5 or the vibration unit 3 after being pressed.

As shown in fig. 3, when not pressed, the cover 6 is not in contact with the vibration module 3, nor is it connected to the vibration module 3 by another member, and the cover 6 is disposed at a distance from the end of the vibration module 3. When the face cover 6 receives an external force F (for example, when it is in contact with the skin of the face), it will deform toward the vibration unit 3 by the external force F and deform to abut against the inner frame 51 or the vibration unit 3, and referring to fig. 7, fig. 7 shows a schematic view of the face cover 6 being deformed to abut against the inner frame 51 under pressure. In this way, when the vibration assembly 3 vibrates, the vibration energy is directly transferred to the face cover 6 and directly transferred to the skin through the face cover 6, without being transferred to the face cover 6 via the elastic arm 52 and the outer bracket 50, and the energy transfer efficiency is higher. In addition, when the cover 6 is not pressed (when not worn), since it is not in contact with the vibration module 3, the cover 3 can be kept stationary or the vibration amount is greatly reduced when the vibration module 3 vibrates, so that vibration energy generated inside is not easily transmitted to the outside, and leakage sound can be further reduced.

After the surface cover 6 is deformed by compression, it may be abutted against the upper end surface of the inner bracket 51 or may be abutted against the vibration module 3, for example, a relief is provided on the inner bracket 51 so that the surface cover 6 can be abutted against the exposed area of the vibration module 3. When the cover 6 is in contact with the inner holder 51 or the vibration unit 3, it is not necessarily required to be in direct contact with the inner holder 51 or the vibration unit 3, but may be in contact with the inner holder 51 or the vibration unit 3 by another member. As shown in fig. 3 and 7, the surface of the cover 6 facing the vibration unit 3 is provided with a pad 60, and after the cover 6 is deformed, the pad 60 comes into contact with the inner bracket 51.

The backing plate 60 is made of a hard material, such as PET, aluminum, magnesium aluminum alloy, or stainless steel. The pad 60 is arranged so that the part of the face cover 6 connected with the pad 60 forms a whole with higher rigidity and can synchronously move. When the cover 6 is deformed by pressure until the pad 60 contacts the inner bracket 51, a larger area of the cover 6 can transmit the energy of the vibration module 3, thereby increasing the volume and improving the sound quality.

As a preferred embodiment, as shown in fig. 8, the cover 6 includes a peripheral portion 61 connected to the housing assembly 2, a central portion 62 connected to the vibration assembly 3, and an elastic portion 63 connected between the peripheral portion 61 and the central portion 62, the peripheral portion 61 being annular and fixedly connected to the housing assembly 2, for example, by being glued to an end face of the housing assembly 2. The central portion 62 is suspended in spaced opposition to the inner support 51. The elastic portions 63 are mainly used for elastic deformation, so that the central portion 62 can generate a larger deformation amplitude, and preferably comprise at least one arch 630, and in the embodiment shown in fig. 9, each elastic portion 63 has one number of arches 630, and in the embodiment shown in fig. 10, each elastic portion 63 has two numbers of arches 630. The arch 630 preferably protrudes toward the side of the vibration assembly 3 to enhance wearing comfort.

In the embodiment shown in fig. 8, the number of elastic portions 63 is four, which are connected to two long sides and two short sides of the central portion 62, respectively. The number of the elastic portions 63 is not limited to four, nor is it limited to being disposed at intervals. For example, the elastic portion 63 may be a complete ring, so that the cover 6 integrally seals the first opening end 21 of the housing assembly 2, thereby providing better waterproof and dustproof effects. In the case where the elastic portions 63 are provided at intervals, the surface of the cover 6 may be covered with a film to provide waterproof and dustproof effects. In addition, the central portion 62 is not limited to being rectangular, nor is the peripheral portion 61 limited to being annular in shape.

The backing plate 60 is preferably disposed at a central location of the central portion 62, preferably with an area smaller than the area of the central portion 62, to facilitate deformation of the cover 6 and to provide a larger area capable of deformation. Preferably, the proportion of the area of backing plate 60 to the area of central portion 62 is in the range of 40% to 80%, more preferably 50% to 60%.

In order to make vibrating assembly 3 can more reliably carry out linear vibration, refer to fig. 3, bone conduction sound generating mechanism includes two shell fragments 5, two shell fragments 5 are connected respectively at vibrating assembly 3's both ends, like this, vibrating assembly 3's both ends all are through shell fragment 5 and shell subassembly 2 elastic connection, can not swing, rock at the vibration in-process because of one end is unsettled, the linearity when vibrating assembly 3 vibrates is better, can improve sound quality, be difficult for simultaneously leading to damaging with outside spare part striking, it is more reliable.

As shown in fig. 3, the housing assembly 2 further includes a second open end 22 in communication with the inner cavity 20, the first open end 21 and the second open end 22 are respectively located at two ends of the housing assembly 2, the second open end 22 is also provided with a face cover 6, and the face covers 6 at the two ends can be used towards the skin of a human body. In addition, when the bone conduction sounding device is used, the face cover 6 on one side is attached to the skin of the face of a person as a sounding face, the face cover 6 on the other side is spaced from the vibration assembly 3 and does not vibrate along with the vibration assembly 3, and compared with the form that the shell assembly 2 is closed at the end, the bone conduction sounding device does not have the vibrating hard backboard 251 (reference numeral is shown in fig. 12), so that the effect of preventing sound leakage is better.

In this embodiment, the housing assembly 2 is formed by connecting a plurality of parts, as shown in fig. 1 and 3, and includes a frame 23 located in the middle, and a first cover 24 and a second cover 25 respectively connected to two ends of the frame 23, where the frame 23, the first cover 24 and the second cover 25 are all annular and coaxially arranged. Referring to fig. 3 and 8, the middle part of the frame 23 is provided with a radially protruding outer convex ring 230 and a first inner convex ring 231, the first cover 24 and the second cover 25 are symmetrical, and are respectively provided with a second inner convex ring 240, and the second inner convex ring 240 is used for matching with the outer edge of the frame 23 to clamp the elastic sheet 5. After the installation is completed, the outer bracket 50 of the elastic sheet 5 is positioned between the second inner convex ring 240 and the frame body 23, so that the connection is firmer. The first cover 24 and the second cover 25 are respectively sleeved on the upper end and the lower end of the frame 23 and are separated by an outer convex ring 230. The two coils 4 are fixedly connected to the upper and lower surfaces of the first inner collar 231, respectively.

As shown in fig. 11, grooves 232 are provided on both opposite sides of the frame 23, and the grooves 232 are used for mounting the circuit board 8 therein, and the circuit board 8 is electrically connected to the coil 4. The circuit board 8 is adapted to be connected to an external circuit for facilitating the connection of the external circuit for powering and controlling the coil 4. It is to be understood that the number of circuit boards 8 is not limited to two, and for example, only one may be provided.

Example 2

As shown in fig. 12, in this embodiment, the housing assembly 2 of the bone conduction sound generating apparatus is provided with an opening at only one end and is sealed at the other end, and in particular, the second cover 25 seals the lower end of the inner cavity 20 and has a back plate 251 sealing the end. Since this end is closed, the protection effect on the internal components is better.

Example 3

As shown in fig. 13, compared with embodiment 1, a connecting member 7 is connected between one of the two face covers 6 and the vibration assembly 3, and the vibration of the vibration assembly 3 is directly transmitted to the face cover 6 through the connecting member 7, so that the face cover 6 is not required to be pressed and deformed and then is attached to the vibration assembly 3 or the elastic sheet 5 for transmission, and the energy transmission efficiency can be improved as well.

The upper end of the connecting piece 7 is connected with the base plate 60, and the lower end is connected with the vibration assembly 3 and the inner bracket 51. As shown in fig. 13 and 14, the lower end of the connecting piece 7 is provided with a post 72, the post 72 passes through the inner bracket 51 and is inserted into the magnetic conductive piece 31, and is fixedly connected with the magnetic conductive piece 31 and the elastic piece 5, the connection mode can be, for example, welding or bonding, and the like, and the arrangement of the post 72 not only can more accurately position the relative positions of the connecting piece 7, the elastic piece 5 and the vibration component 3, but also can improve the connection firmness with the vibration component 3.

In this embodiment, the upper end cover 6 or the lower end cover 6 may be selected to transmit sound in contact with the skin.

The utility model also proposes a wearable device comprising the bone conduction sound emitting apparatus described above. The wearable device is for example a bone conduction headset, bone conduction glasses, helmet, VR glasses, etc.

The foregoing is merely exemplary of the utility model and other modifications can be made without departing from the scope of the utility model.

Claims (12)

1. A bone conduction sound generating apparatus, comprising:

a housing assembly (2) comprising an inner cavity (20) and a first open end (21) in communication with said inner cavity (20);

the vibration assembly (3) is movably arranged in the inner cavity (20);

a spring plate (5) connected between the housing assembly (2) and the vibration assembly (3); the method comprises the steps of,

the surface cover (6) is connected with the first opening end (21), the surface cover (6) is made of flexible materials, the surface cover (6) and the vibration assembly (3) are arranged at opposite intervals, and the surface cover can be elastically deformed to be in transmission connection with the vibration assembly (3) after being pressed.

2. The bone conduction sound emitting apparatus according to claim 1, wherein the elastic sheet (5) includes an outer bracket (50) connected to the housing assembly (2), an inner bracket (51) connected to the vibration assembly (3), and an elastic arm (52) connected between the outer bracket (50) and the inner bracket (51), the vibration assembly (3) being connected to the inner bracket (51).

3. Bone conduction sound apparatus as claimed in claim 2, characterized in that said face cover (6) is elastically deformed upon compression into abutment with said inner support (51) or said vibration assembly (3).

4. A bone conduction sound apparatus as claimed in claim 3, further comprising a backing plate (60) connected to said face cover (6), said backing plate (60) being made of a hard material, said backing plate (60) abutting said inner support (51) or said vibration assembly (3) after said face cover (6) is pressed.

5. The bone conduction sound generating apparatus according to claim 1, wherein the vibration assembly (3) includes a magnet (30) and two magnetic conductive members (31) respectively connected to both ends of the magnet (30), and magnetic poles of the magnet (30) are arranged along a vibration direction of the vibration assembly (3) and have polarities opposite to both ends to which the magnetic conductive members (31) are connected; the bone conduction sounding device comprises two coils (4), the two coils (4) respectively encircle the peripheries of the two magnetic conduction pieces (31), and the directions of current introduced into the two coils (4) are opposite.

6. The bone conduction sound emitting apparatus according to any one of claims 1 to 5, wherein said face cover (6) includes a peripheral portion (61) connected to said housing assembly (2), a central portion (62) connected to said vibration assembly (3), and an elastic portion (63) connected between said peripheral portion (61) and said central portion (62), said elastic portion (63) including at least one arch (630) protruding toward a side of said vibration assembly (3).

7. The bone conduction sound emitting apparatus according to claim 6, wherein said face cover (6) includes a plurality of elastic portions (63) arranged at intervals; alternatively, the face cover (6) includes an annular elastic portion (63), and the face cover (6) closes the first open end (21).

8. The bone conduction sound apparatus as claimed in any one of claims 1 to 5, wherein an end of said housing assembly (2) opposite said first open end (21) is closed.

9. The bone conduction sound emitting apparatus according to any one of claims 1 to 5, wherein said housing assembly (2) further comprises a second open end (22) in communication with said interior cavity (20), said first open end (21) and said second open end (22) being located at respective ends of said housing assembly (2), said second open end (22) being also provided with said face cover (6).

10. Bone conduction sound emitting apparatus according to claim 9, characterized in that both of said covers (6) are elastically deformable into driving connection with said vibration assembly (3); or, a connecting piece (7) is connected between one surface cover (6) of the two surface covers (6) and the vibration assembly (3), and the other surface cover (6) can be elastically deformed to be in transmission connection with the vibration assembly (3).

11. The bone conduction sounding device as set forth in any one of claims 1 to 5, characterized in that the bone conduction sounding device includes two elastic pieces (5), the two elastic pieces (5) being connected to both ends of the vibration assembly (3), respectively.

12. A wearable device comprising the bone conduction sound emitting apparatus of any one of claims 1 to 11.