CN209964294U

CN209964294U - Bone conduction vibrator loudspeaker

Info

Publication number: CN209964294U
Application number: CN201920969842.6U
Authority: CN
Inventors: 谭华容
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-01-17
Anticipated expiration: 2029-06-25

Abstract

The utility model relates to a bone conduction vibrator loudspeaker, which comprises a magnetic circuit component and a vibrating piece component, wherein the vibrating piece component comprises a bracket, a first vibrating piece and a second vibrating piece; the bracket comprises a hollow cylinder body; the barrel comprises a first opening and a second opening; the first vibrating piece is detachably arranged in the first opening to support the whole vibrating piece assembly; the second vibrating plate is arranged on the inner side of the cylinder, is arranged at an interval with the first vibrating plate so as to be matched with the first vibrating plate to support the magnetic circuit assembly, and comprises a second central through hole and a second annular body arranged on the periphery of the second central through hole; the magnetic circuit component comprises U-shaped iron, the U-shaped iron comprises a cylindrical body and a limiting flange, and the limiting flange is arranged at one end of the cylindrical body and protrudes along the outer side of the cylindrical body; the cylindrical body penetrates through the second central through hole and penetrates out of the second opening, and the limiting flange is arranged on the second annular body. The bone conduction vibrator loudspeaker increases the vibration amplitude of bass and has the advantage of low reject ratio.

Description

Bone conduction vibrator loudspeaker

Technical Field

The utility model relates to a speaker, more specifically say, relate to a bone conduction oscillator speaker.

Background

The vibrating reed component of the bone conduction vibrator loudspeaker in the prior art generally only comprises a spring plate, and the spring plate is generally attached to an opening of the U-shaped iron; if the vibration frequency of the existing bone conduction vibrator loudspeaker is designed to be lower, the amplitude vibration is too large, and the sound leakage is large; in the other situation, if the vibration frequency is designed to be higher, the vibration amplitude jitter is reduced, the sound leakage is reduced, but the vibration strength is also reduced, the bone conduction sound is obviously reduced when the bone conduction bone; and the whole mass of the whole magnetic circuit assembly of bone conduction oscillator speaker among the prior art is great, because of pasting and establishing in the shell fragment lower part, drops easily to influence the user experience sense after the finished product earphone is adorned.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, a modified bone conduction oscillator speaker is provided.

The utility model provides a technical scheme that its technical problem adopted is: constructing a bone conduction vibrator loudspeaker, which comprises a magnetic circuit assembly and a vibration plate assembly, wherein the vibration plate assembly comprises a bracket, a first vibration plate and a second vibration plate; the bracket comprises a hollow cylinder body; the barrel includes a first opening and a second opening; the first vibrating plate is detachably arranged in the first opening to support the whole vibrating plate assembly; the second vibrating plate is arranged on the inner side of the barrel and is arranged at an interval with the first vibrating plate so as to support the magnetic circuit assembly in a matched manner with the first vibrating plate; the second vibrating plate comprises a second central through hole and a second annular body arranged on the periphery of the second central through hole;

the magnetic circuit component comprises U-shaped iron, the U-shaped iron comprises a cylindrical body and a limiting flange, and the limiting flange is arranged at one end of the cylindrical body and protrudes along the outer side of the cylindrical body;

the cylindrical body penetrates through the second central through hole and penetrates out of the second opening, and the limiting flange is arranged on the second annular body and matched with the second annular body to suspend the magnetic circuit assembly.

Preferably, a clamping groove is formed in the inner side of the cylinder body, and the clamping groove is formed along the circumferential direction of the cylinder body and is used for clamping the second vibrating reed;

or the second vibrating plate and the cylinder form an integral structure through an injection molding process.

Preferably, the end face of the cylinder body, on which the first opening is formed, is provided with a limiting groove, and the limiting groove is formed along the circumferential direction of the cylinder body so as to limit the first vibrating reed.

Preferably, the first vibrating plate includes a first central through hole and a first ring-shaped body disposed at a periphery of the first central through hole.

Preferably, the vibration plate assembly further includes a voice coil assembly;

the voice coil assembly comprises a supporting cylinder and a voice coil sleeved at the lower part of the supporting cylinder and positioned at the periphery of the supporting cylinder;

the support cylinder penetrates through the first central through hole of the first elastic sheet so as to place part or all of the voice coil in the U-shaped iron.

Preferably, the device further comprises a face cover;

the face cover is arranged at one end of the supporting cylinder body penetrating out of the first central through hole and is detachably connected with the supporting cylinder body.

Preferably, the surface cover comprises a cover body and a clamping position which is arranged on the cover body and is matched and fixed with the support cylinder body.

Preferably, the magnetic circuit assembly further comprises a magnet disposed in the U-shaped iron.

Preferably, the magnetic circuit assembly further comprises a magnetic conductive member; the magnetic conduction piece is arranged on the magnet.

Preferably, the first vibrating plate and/or the second vibrating plate comprise an L-shaped spring or an S-shaped spring to keep the voice coil assembly of the vibrating plate assembly axially vibrating in the middle of the magnetic gap of the magnetic circuit assembly.

Implement the utility model discloses a bone conduction oscillator speaker has following beneficial effect: the bone conduction vibrator loudspeaker is characterized in that the cylindrical body of the U-shaped iron of the magnetic circuit component penetrates through the central through hole of the second vibrating reed in the cylinder support, and the limiting flange of the U-shaped iron of the magnetic circuit component is arranged on the second annular body, so that the magnetic circuit component is conveniently suspended, the vibration amplitude of the bone conduction vibrator loudspeaker is increased, the middle and high sound which is emitted by the vibrator magnetic circuit component and can be transmitted in the air is reduced, and the leakage sound of the vibrator is reduced; and a magnetic circuit component with light weight and small volume can be adopted, so that the magnetic circuit component is stably connected with the second elastic sheet, and the user experience of the finished earphone is improved. The bone conduction vibrator loudspeaker has the advantages of simple process, few assembling procedures, high assembling efficiency and low reject ratio.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a cross-sectional view of a bone conduction vibrator speaker in accordance with some embodiments of the present invention;

fig. 2 is an exploded schematic view of the bone conduction vibrator speaker shown in fig. 1;

fig. 3 is a partial structural view of a support and a second vibrating reed assembly of the bone conduction vibrator speaker according to some embodiments of the present invention;

fig. 4 is a partial structural view of a combination of the voice coil assembly and the first vibrating piece of the bone conduction vibrator speaker shown in fig. 1.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows some preferred embodiments of the bone conduction vibrator speaker of the present invention. The bone conduction vibrator loudspeaker can be assembled in intelligent and convenient equipment with music, such as bone conduction earphones, bone conduction music sports caps, bone conduction music glasses and the like, and has the advantages of simple process, few assembling procedures, high assembling efficiency and low reject ratio.

As shown in fig. 1 and 2, the bone conduction vibrator speaker may include a magnetic circuit member 10, a vibrating piece member 20, and a face cap 30; the magnetic circuit assembly 10 may be mounted on a lower portion of the vibration plate assembly 20, and may generate electromagnetic induction in a power-on state, thereby driving the vibration plate assembly 20 to vibrate. The diaphragm assembly 20 may be used for mounting the magnetic circuit assembly 10. The face cap 30 may be installed above the vibrating plate assembly 20, and may be used to amplify and correct vibration and sound, thereby achieving the effects of reducing power consumption and improving sound quality.

Further, in some embodiments, the magnetic circuit assembly 10 may include a U-shaped iron 11, a magnet 12, and a magnetic conductor 13; the U-shaped iron 11 can be used for mounting the magnet 12 and the magnetic conducting member 13. The magnet 12 may be disposed in the U-shaped iron 11, and the magnetic conductive member 13 may be disposed in the U-shaped iron 11 and above the magnet 12. In some embodiments, the U-shaped iron 11, the magnet 12, and the magnetic conductor 13 may be one, which may form a single magnetic circuit; it is understood that in other embodiments, a secondary magnet may be added to the magnetic circuit assembly 10, which may be configured with the U-shaped iron 11, the magnet 12 and the magnetic conductive member 13 to form a dual magnetic circuit.

Further, in some embodiments, the magnetic circuit assembly 10 may include a cylindrical body 111 and a position-limiting flange 112; the cylindrical body 111 can protrude from the vibrating piece assembly 20, and it can be cylindrical, and it can be understood that in other embodiments, the cylindrical body 111 can not be limited to be cylindrical, and the inside of the cylindrical body 111 can form a receiving cavity for receiving the magnet 12 and the magnetic conductive member 13; one end of the cylindrical body 111 may be opened to facilitate the installation of the magnet 12 and the magnetic conductive member 13. The position-limiting flange 112 is disposed at one end of the cylindrical body 111, and specifically, it may be disposed at an opening end of the cylindrical body 111, and it may protrude along an outer side of the cylindrical body 111, and its outer diameter may be larger than that of the cylindrical body 111, and it may be integrally formed with the cylindrical body 111, and it may be used to limit the position of the cylindrical body 111, so as to hang the cylindrical body 111 on the vibrating piece assembly 20.

Further, in some embodiments, the magnet 12 may be cylindrical, and has a size smaller than that of the receiving cavity of the U-shaped iron 11, and is disposed at a lower portion of the receiving cavity of the U-shaped iron 11 and contacts with the bottom wall of the cylindrical body 111. Of course, it is understood that in other embodiments, the magnet 12 may not be limited to a cylindrical shape, and may have a rectangular parallelepiped shape or other shapes.

Further, in some embodiments, the magnetic conductive member 13 may be disposed on a side of the magnet 12 opposite to the first spring 22 of the vibrating plate assembly, and the shape and cross-sectional area of the magnetic conductive member may be adapted to the shape and cross-sectional area of the magnet 12, which may be used to guide the magnetism of the magnet 12. In this embodiment, the magnetic conductive member 13 may be washer. Of course, it is understood that in other embodiments, the magnetic conductive member 13 may not be limited to washer. In some embodiments, the magnetic conducting member 13 may have a cylindrical shape, and it is understood that in other embodiments, it may not be limited to a cylindrical shape, and it may have a rectangular parallelepiped shape or other shapes.

As shown in fig. 1 to 4, the vibrating plate assembly 20 may include a bracket 21, a first vibrating plate 22, a second vibrating plate 23, and a voice coil assembly 24; the holder 21 can be arranged at the periphery of the cylindrical body 111, which can be used for mounting the first membrane 22 and the second membrane 23. The first vibration plate 22 and the third vibration plate 23 can be disposed on the bracket 21 at an interval and disposed side by side along the axial direction, the second vibration plate 23 can be sleeved on the periphery of the cylindrical body 111, and both the first vibration plate 22 and the second vibration plate 23 have elasticity and rigidity of axial vibration so as to maintain axial vibration of the voice coil assembly 24 in the magnetic gap of the magnetic circuit assembly 10. The voice coil assembly 24 may be disposed in the U-shaped iron 11 and above the magnet 12, and may cooperate with the magnet 12 to generate electromagnetic induction in a power-on state.

The holder 21 may include a cylinder 211; the cylinder 211 is a hollow structure, and can be sleeved on the periphery of the voice coil assembly 24 and the periphery of the partial cylinder body 111. The barrel 211 may include a first opening 2111 and a second opening 2112; the first opening 2111 and the second opening 2112 may be disposed along the axial direction of the cylinder 211 and opposite to each other. The U-shaped iron 11 may be disposed through the second opening 2112. The cylinder body 211 is provided with a limit groove 2113; the limiting groove 2113 may be disposed on an end surface of the cylinder 211 where the first opening 2111 is disposed, and may be disposed along a circumferential direction of the cylinder 211, and may be used for mounting the first vibrating reed 22, so as to limit the first vibrating reed 22. A clamping groove 2114 can be formed in the inner side of the cylinder body 211; the locking slot 2114 may be disposed along a circumferential direction of the cylinder 211, and the locking slot 2114 may be located at an end close to the second opening 2112, and may extend along a radial direction of the cylinder 211, and may be used for locking the second vibration plate 23, and mounting the second vibration plate 23, so that the second vibration plate 23 and the bracket 21 may form an integral structure. It is understood that in other embodiments, the second vibrating plate 23 can be directly injection molded on the inner side of the cylinder 211 by an injection molding process to form an integral structure with the cylinder 211.

Further, in some embodiments, the first vibrating plate 22 can be detachably disposed at the first opening 2111, and it can be disposed in the retaining groove 2113, which can generate audio frequency by vibration, and which can be used to support the entire vibrating plate assembly 20. The first vibrating reed 22 can be an L-shaped elastic sheet, which can keep the voice coil assembly 24 axially vibrating in the magnetic gap of the magnetic circuit assembly 10; it is understood that in other embodiments, it may be an S-shaped spring. The first vibrating plate 22 can include a first central through hole 222 and a first ring 221 disposed at the periphery of the first central through hole 222; the first central through hole 222 allows the voice coil assembly 24 to pass through and connect with the face cover 30. The outer edge of the first ring 221 may be seated on the retaining groove 2113.

Further, in some embodiments, the second membrane 23 has a radial dimension smaller than that of the cylinder 211, and may be disposed inside the cylinder 211 and spaced apart from the first membrane 22, and cooperate with the first membrane 22 to support the entire magnetic circuit assembly 10. The second vibrating reed 23 may be an L-shaped elastic reed, which can keep the voice coil assembly 24 axially vibrating in the magnetic gap of the magnetic circuit assembly 10; it is understood that in other embodiments, it may be an S-shaped spring. The second membrane 23 may comprise a second central through hole 232 and a second ring 231; the second central through hole 232 is disposed opposite to the first central through hole 222, and is used for the cylindrical body 111 to pass through. The second ring 231 may be disposed at the periphery of the second central through hole 232, and may be engaged in the engaging slot 2114. The cylindrical body 111 can be inserted into the second central through hole 232 and pass through the second opening 2112, the limiting flange 112 can be placed on the second annular body 231, and can be matched with the second annular body 231 to suspend the magnetic circuit assembly 10, so that the vibration amplitude of bass can be increased, bass can be emphasized, direct rigid connection with the second vibrating reed 23 can be avoided, middle and high tones which are emitted by the vibrator and can be propagated in the air can be reduced, sound leakage can be reduced, and the magnetic circuit assembly can be made relatively smaller under the condition of the same bass requirement, so that the overall quality of the vibrator can be reduced, and the user experience can be improved.

Further, in some embodiments, the voice coil assembly 24 may include a support cylinder 241 and a voice coil 242; the supporting cylinder 241 is used for sleeving the voice coil 242, and the supporting cylinder 241 is disposed through the first central through hole 222 and penetrates into the U-shaped iron 11, so that a part of the voice coil 242 is disposed in the U-shaped iron 11, and it is understood that in other embodiments, all of the voice coil 242 may be disposed in the U-shaped iron 11. The first vibrating reed 22 can be sleeved on the supporting cylinder 241 and can be bonded and fixed through the bonding structure, and parts such as a spacer and a voice coil bracket can be omitted through the supporting cylinder 241, so that the number of processing parts can be reduced, and the assembly efficiency can be improved.

Further, in some embodiments, the face cover 30 may be disposed at one end of the supporting cylinder 241, specifically, at one end of the supporting cylinder 241 penetrating the first central through hole 222, and may be detachably connected to the supporting cylinder 241, and the face cover 30 may be a laminated soundboard, which may be connected to the listening face by an adhesive member, and may have a diameter larger than the outer diameter of the cylinder 211. The face cover 30 may include a cover body 31 and a detent 32; the cover body 31 may be circular, it is understood that in other embodiments, the cover body 31 may not be limited to be circular, and the detent 32 may be disposed on the cover body 31 at a side opposite to the supporting cylinder 241, and may cooperate with the supporting cylinder 241 to allow the supporting cylinder 241 to be snapped and fixed. The assembly of the front support 21, the second vibration plate 23 and the magnetic circuit member 10 is suspended on the support cylinder 241 of the voice coil member 24 through the first vibration plate 22 of the bone conduction vibrator speaker, and the top cover 30 is connected to the upper end of the support cylinder 241; after the surface cover 30 of the bone conduction vibrator loudspeaker is installed and contacted with the listening surface, the vibration amplitude of the bone conduction vibrator loudspeaker can be increased, the middle and high sound which is emitted by the vibrator magnetic circuit component and can be transmitted in the air is reduced, and the leakage sound of the vibrator can be reduced; and a magnetic circuit component with light weight and small volume can be adopted, so that the magnetic circuit component is stably connected with the second elastic sheet, and the user experience of the finished earphone is improved.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A bone conduction vibrator speaker comprising a magnetic circuit member (10) and a diaphragm member (20), characterized in that the diaphragm member (20) comprises a support (21), a first diaphragm (22) and a second diaphragm (23); the bracket (21) comprises a hollow cylinder body (211); the barrel (211) includes a first opening (2111) and a second opening (2112); said first membrane (22) being removably arranged in said first opening (2111) to support the whole of said membrane assembly (20); the second vibrating piece (23) is arranged on the inner side of the cylinder (211) and is spaced from the first vibrating piece (22) so as to support the magnetic circuit assembly (10) in a matching manner with the first vibrating piece (22); the second membrane (23) comprises a second central through hole (232) and a second ring (231) arranged at the periphery of the second central through hole (232);

the magnetic circuit assembly (10) comprises a U-shaped iron (11), the U-shaped iron (11) comprises a cylindrical body (111) and a limiting flange (112), and the limiting flange (112) is arranged at one end of the cylindrical body (111) and protrudes along the outer side of the cylindrical body (111);

the cylindrical body (111) penetrates through the second central through hole (232) and penetrates out of the second opening (2112), and the limiting flange (112) is placed on the second annular body (231) to suspend the magnetic circuit assembly (10).

2. The bone conduction vibrator speaker as claimed in claim 1, wherein a notch (2114) is formed in an inner side of the cylinder (211), and the notch (2114) is provided along a circumferential direction of the cylinder (211) for the second vibration plate (23) to be caught;

or, the second vibrating plate (23) and the cylinder (211) form an integral structure through an injection molding process.

3. The bone conduction vibrator speaker as claimed in claim 1, wherein an end surface of the cylinder (211) provided with the first opening (2111) is provided with a stopper groove (2113), and the stopper groove (2113) is provided along a circumferential direction of the cylinder (211) to stopper the first vibration plate (22).

4. The bone conduction vibrator speaker as claimed in claim 1, wherein the first vibration plate (22) includes a first center through hole (222) and a first ring body (221) provided at a periphery of the first center through hole (222).

5. The bone conduction vibrator speaker of claim 4, wherein the vibration plate assembly (20) further comprises a voice coil assembly (24);

the voice coil assembly (24) comprises a supporting cylinder body (241) and a voice coil (242) which is sleeved at the lower part of the supporting cylinder body (241) and is positioned at the periphery of the supporting cylinder body (241);

the supporting cylinder (241) penetrates through the first central through hole (222) to arrange part or all of the voice coil (242) in the U-shaped iron (11).

6. The bone conduction vibrator speaker of claim 5, further comprising a face cover (30);

the face cover (30) is arranged at one end, penetrating out of the first central through hole (222), of the supporting cylinder body (241) and is detachably connected with the supporting cylinder body (241).

7. The bone conduction vibrator speaker as claimed in claim 6, wherein the face cover (30) comprises a cover body (31) and a detent (32) provided on the cover body (31) to be fitted and fixed with the support cylinder (241).

8. The bone conduction vibrator speaker of claim 1, wherein the magnetic circuit assembly (10) includes a magnet (12), the magnet (12) being disposed in the U-shaped iron (11).

9. The bone conduction vibrator speaker of claim 8, wherein the magnetic circuit assembly (10) further comprises a magnetically permeable member (13); the magnetic conduction piece (13) is arranged on the magnet (12).

10. The bone conduction vibrator-speaker as claimed in claim 1, wherein the first vibration plate (22) and/or the second vibration plate (23) includes an L-shaped spring or an S-shaped spring to keep the voice coil assembly (24) of the vibration plate assembly (20) axially vibrating in the middle of the magnetic gap of the magnetic circuit assembly (10).