CN211720735U

CN211720735U - Bone conduction vibration loudspeaker

Info

Publication number: CN211720735U
Application number: CN202020465048.0U
Authority: CN
Inventors: 谭华容
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-10-20
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to a bone conduction vibration horn, which comprises a vibration plate component and a magnetic circuit component; the vibrating piece assembly comprises a bracket and a vibrating piece; the bracket comprises a hollow first sleeve and a hollow second sleeve which extends out from one end of the first sleeve; the inner diameter of the first sleeve is larger than the outer diameter of the second sleeve; the vibrating reed is sleeved on the periphery of the second sleeve, is respectively connected with the first sleeve and the second sleeve, and is in a combined structure with the first sleeve and the second sleeve; the magnetic circuit assembly is disposed in the second sleeve. The bone conduction vibration horn has the advantages of simple process, large bass vibration amplitude, increased bass under the condition of the same magnetic performance and good tone quality effect under the condition of the same power consumption.

Description

Bone conduction vibration loudspeaker

Technical Field

The utility model relates to a loudspeaker, more specifically say, relate to a bone conduction vibration loudspeaker.

Background

The vibrating reed component of the bone conduction vibration loudspeaker in the related art generally comprises a spring plate, the spring plate is generally attached to an opening of the U-shaped iron, the caliber of the spring plate is relatively large, the low frequency is easily distorted, and therefore the tone quality effect is affected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a modified bone conduction vibration loudspeaker.

The utility model provides a technical scheme that its technical problem adopted is: constructing a bone conduction vibration horn, which comprises a vibration plate component and a magnetic circuit component; the vibrating piece assembly comprises a bracket and a vibrating piece;

the bracket comprises a hollow first sleeve and a hollow second sleeve which extends out from one end of the first sleeve; the inner diameter of the first sleeve is larger than the outer diameter of the second sleeve;

the vibrating reed is sleeved on the periphery of the second sleeve, is respectively connected with the first sleeve and the second sleeve, and is in a combined structure with the first sleeve and the second sleeve;

the magnetic circuit assembly is disposed in the second sleeve.

Preferably, the vibrating plate includes a central through hole and a ring-shaped body located in the central through hole;

the inner edge of the annular body is arranged in the second sleeve;

the outer edge of the annular body is disposed in the first sleeve.

Preferably, the outer peripheral wall of the first sleeve is stepped.

Preferably, the diaphragm assembly further comprises a voice coil; the voice coil is disposed in the first sleeve.

Preferably, the vibration plate assembly further comprises an elastic wave sleeved on the periphery of the voice coil and located in the first sleeve;

the elastic wave is connected with one side of the vibrating plate in the first sleeve.

Preferably, the diaphragm assembly further includes a diaphragm; the vibrating diaphragm is arranged at one end, far away from the second sleeve, of the first sleeve, covers the opening, far away from one end of the second sleeve, of the first sleeve, and is connected with the voice coil.

Preferably, the vibration isolator further comprises a dust cap arranged in the vibrating diaphragm.

Preferably, the magnetic circuit assembly comprises a U-shaped iron and at least one magnet arranged in the U-shaped iron;

the second sleeve is sleeved on the periphery of the U-shaped iron

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

Preferably, the at least one magnet comprises two magnets disposed on both sides of the magnetic conductive member.

Implement the utility model discloses a bone conduction vibration loudspeaker has following beneficial effect: this bone conduction vibration loudspeaker establishes the telescopic periphery of second and be connected with this first sleeve and this second sleeve respectively through the trembler cover with the vibrating plate subassembly of support to with this first sleeve and this second sleeve integrated configuration, thereby can make low frequency vibration increase by a wide margin, reduce bass distortion, make the bass perfectly strong, thereby improve tone quality.

Drawings

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

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

FIG. 2 is a partially exploded schematic view of the bone conduction vibration horn of FIG. 1;

FIG. 3 is a top view of the bone conduction vibration horn of FIG. 1;

fig. 4 is a schematic diagram of a top-view diaphragm structure of the bone conduction vibration horn of fig. 1;

fig. 5 is a longitudinal sectional view of the bone conduction vibration horn of 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 and 2 show some preferred embodiments of the bone conduction vibration horn of the present invention. This bone conduction vibration loudspeaker can assemble in the convenient equipment of intelligence of taking the music such as multiple audio amplifier, bone conduction earphone, bone conduction music motion cap, bone conduction music glasses to through the test in the frequency channel below 200HZ, this bone conduction vibration loudspeaker's sensitivity has obvious promotion, and this bone conduction vibration loudspeaker has simple process, bass vibration amplitude is big, bass distortion is little, the effectual advantage of tone quality.

As shown in fig. 1 and 2, the bone conduction vibration horn may include a vibration plate assembly 10 and a magnetic circuit assembly 20; the vibrating reed assembly 10 can be used for mounting the magnetic circuit assembly 20, and can generate vibration when the magnetic circuit assembly 20 is powered on, so as to generate audio output. The magnetic circuit member 20 may be mounted under the vibration plate member 20, and may generate electromagnetic induction in a power-on state to drive the vibration plate member 20 to vibrate.

Further, in some embodiments, the vibration plate assembly 10 may include a bracket 11, a vibration plate 12, a voice coil 13, a damper 14, and a diaphragm 15. The mount 11 is used for mounting the vibration plate 12 and the magnetic circuit assembly 20. The diaphragm 12 may be mounted on the mount 11, which may produce an audio output by vibration. The voice coil 13 may be disposed in the support 11, and one end of the voice coil may be connected to the diaphragm 15, which may cooperate with the magnetic circuit assembly 20 to generate electromagnetic induction in a power-on state. The damper 14 can be sleeved on the periphery of the voice coil 13 and can be connected to the vibration plate 12, which can keep the voice coil 13 at the correct position in the magnetic gap, ensure that the vibration plate assembly 10 reciprocates along the axial direction when the voice coil 13 is stressed, and can determine the resonance efficiency of the speaker together with the voice coil 13 and the vibration film 15, and simultaneously can prevent dust from entering the magnetic gap.

Further, in some embodiments, the holder 11 may include a first sleeve 111, and a second sleeve 112; the first sleeve 111 is a hollow structure, and the outer peripheral wall thereof may be stepped, and may include a first column, a second column, and a third column connected in sequence; the outer diameter of the first cylinder is larger than that of the second cylinder, and the outer diameter of the second cylinder is larger than that of the third cylinder. The first cylinder, the second cylinder and the third cylinder can be integrally formed through injection molding. The second sleeve 112 may extend from one end of the first sleeve 111, and the second sleeve 112 may be a hollow structure, which may be used for mounting the magnetic circuit assembly 20. The inner diameter of the first sleeve 111 is larger than the outer diameter of the second sleeve 112. Specifically, the inner diameter of the third cylinder is larger than the outer diameter of the second sleeve 112, and the second sleeve 112 can be disposed through one end of the third cylinder, and a space can be left between the second sleeve and the third cylinder.

As shown in fig. 1, fig. 2 and fig. 4, further, in some embodiments, the vibrating plate 12 can be sleeved on the periphery of the second sleeve 112 and connected to the first sleeve 111 and the second sleeve 112 respectively, specifically, the vibrating plate 12 is sleeved on the upper portion of the second sleeve 112 and connected to the inner sidewall of the open end of the third cylinder. The vibrating plate 12 can be formed with the first sleeve 111 and the second sleeve 112 as a combined structure, and in some embodiments, the vibrating plate 12 can be integrally formed with the first sleeve 111 and the second sleeve 112 by injection molding, or can be fixed with the first sleeve 111 and the second sleeve 112 by welding. It is understood that in other embodiments, the vibrating plate 12 can be detachably connected to the first sleeve 111 and the second sleeve 112, and the first sleeve 111 and the second sleeve 112 can be provided with a slot for the vibrating plate 12 to be inserted into. Through forming integrated configuration with this trembler and this first sleeve 111 and this second sleeve 112, can be convenient for form small-bore speaker, and it can make low frequency vibration increase by a wide margin, reduces the bass distortion for the bass is perfectly strong, thereby improves tone quality.

In some embodiments, the vibration plate 12 can be a spring, and in particular, it can be an L-shaped spring. It is understood that in other embodiments, it may not be limited to L-shaped spring, and it may be an S-shaped spring. The vibrating piece 12 may include a central through hole 121 and a ring body 122; the inner diameter of the central through hole 121 is equal to the outer diameter of the third column, and the third column can penetrate through the central through hole. The ring body 122 may be located at the periphery of the central through hole 121, and an inner edge thereof may be disposed in the second sleeve 112, specifically, an inner edge thereof may be snapped into an outer sidewall of the second sleeve 112 in a direction transverse to the second sleeve 112, and an outer edge thereof may be disposed in the first sleeve 111, specifically, an outer edge thereof may be snapped into an inner sidewall of the first sleeve 111 in a direction transverse to and in the first sleeve 111.

Further, in some embodiments, the voice coil 13 may be cylindrical, which may be disposed through the first sleeve 111 into the second sleeve 112, which is at least partially disposed in the second sleeve 112. The voice coil 13 can cut the magnetic field after receiving the kinetic energy signal provided by the magnetic circuit assembly 20, and drive the vibration plate 12 and the vibration film 15 to vibrate.

As shown in fig. 1 to fig. 3 and fig. 5, further, in some embodiments, the damper 14 may be disposed at the periphery of the voice coil 13, may be located in the first sleeve 111, may be adhered to the voice coil 13 by an adhesive, may be located at a side of the diaphragm located in the first sleeve 111, and may be adhered to a damper position of the diaphragm 12 located at a side of the first sleeve 111 by an adhesive. In some embodiments, the damper 14 may be an elastomer that vibrates when the magnetic circuit assembly 20 is energized.

Further, in some embodiments, the diaphragm 15 may be disposed at an end of the first sleeve 111 away from the second sleeve 112, may cover an opening at an end of the first sleeve 111 away from the second sleeve 112, and may be connected to the voice coil 13. Specifically, the diaphragm 15 may be in an inverted cone shape, and a tapered portion of the diaphragm may be attached to the upper end surface of the voice coil by providing an adhesive member. The diaphragm 15 may be an elastic body which generates a sound by rotating and rubbing with the air. In some embodiments, the diaphragm 15 may be made of a paper material, which may be a cone, and the outer periphery of the diaphragm 15 may be bonded to the first sleeve 111 by providing an adhesive member.

Further, in some embodiments, the magnetic circuit assembly 20 may include a U-shaped iron 21, at least one magnet 22, and a magnetic conductive member 23. The U-shaped iron 21 is disposed in the second cylinder 112, and it can be used for mounting the magnet 22 and the magnetic conductor 23. The at least one magnet 22 may be two magnets 22; it will be appreciated that in other embodiments, it may be a magnet 22. The magnetic conducting member 23 can be disposed in the U-shaped iron 21, and it can be adhered between the two magnets 22, which can be used for magnetic conduction.

Further, in some embodiments, the U-shaped iron 21 may be cylindrical, the outer diameter of the U-shaped iron may be equal to the inner diameter of the second sleeve 112, the inner side of the U-shaped iron may form a receiving cavity for receiving the magnet 22 and the magnetic conductive member 23, and the upper portion of the U-shaped iron 21 may be adhered to the inner sidewall of the second sleeve 112 by an adhesive member to be fixed to the second sleeve 112.

Further, in some embodiments, the magnet 22 may be cylindrical, and the outer diameter thereof may be smaller than the inner diameter of the U-shaped iron 21, the two magnets 22 may be respectively located at two sides of the magnetic conductive member 23, and the two magnets 22 may form a dual magnetic circuit.

Further, in some embodiments, the shape and size of the magnetic conductor 23 is adapted to the shape and size of the magnet 22, which can be used for magnetic guidance of the spacer magnet 12. In the present embodiment, the magnetic conductive member 13 may be a washer, and it is understood that in other embodiments, the magnetic conductive member 13 may not be limited to the washer.

In some embodiments, the bone conduction vibration horn may further include a dust cap 30; the dust cap 30 may be disposed in the diaphragm 15, specifically, it may be disposed on a side of the diaphragm 15 opposite to the first sleeve 111, which may prevent dust from entering into the diaphragm 15, and in some embodiments, the dust cap 30 may be bonded to the voice coil 13 and the diaphragm 15 through a bonding member.

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 vibration horn is characterized by comprising a vibration plate component (10) and a magnetic circuit component (20); the vibrating piece assembly (10) comprises a bracket (11) and a vibrating piece (12);

the bracket (11) comprises a hollow first sleeve (111) and a hollow second sleeve (112) extending from one end of the first sleeve (111); the inner diameter of the first sleeve (111) is larger than the outer diameter of the second sleeve (112);

the vibrating plate (12) is sleeved on the periphery of the second sleeve (112), is respectively connected with the first sleeve (111) and the second sleeve (112), and forms a combined structure with the first sleeve (111) and the second sleeve (112);

the magnetic circuit assembly (20) is disposed in the second sleeve (112).

2. The bone conduction vibration horn according to claim 1, wherein the vibration plate (12) includes a central through hole (121) and a ring-shaped body (122) located at the central through hole (121);

the inner edge of the annular body (122) is disposed in the second sleeve (112);

the outer edge of the annular body (122) is arranged in the first sleeve (111).

3. The bone conduction vibration horn of claim 1, wherein the outer peripheral wall of the first sleeve (111) is stepped.

4. The bone conduction vibration horn according to claim 1, wherein the vibration plate assembly (10) further comprises a voice coil (13); the voice coil (13) is disposed in the first sleeve (111).

5. The bone conduction vibration horn according to claim 4, wherein the vibration plate assembly (10) further comprises an elastic wave (14) provided around the voice coil (13) and located in the first sleeve (111);

the damper (14) is connected to the side of the vibrating piece (12) located in the first sleeve (111).

6. The bone conduction vibration horn according to claim 4, wherein the vibration plate assembly (10) further comprises a diaphragm (15); the vibrating diaphragm (15) is arranged at one end, far away from the second sleeve (112), of the first sleeve (111), covers an opening, far away from one end of the second sleeve (112), of the first sleeve (111), and is connected with the voice coil (13).

7. The bone conduction vibration horn according to claim 6, further comprising a dust cap (30) provided in the diaphragm (15).

8. The bone conduction vibration horn according to claim 1, wherein the magnetic circuit assembly (20) comprises a U-shaped iron (21), and at least one magnet (22) provided in the U-shaped iron (21);

the second sleeve (112) is sleeved on the periphery of the U-shaped iron (21).

9. The bone conduction vibration horn according to claim 8, wherein the magnetic circuit assembly (20) further comprises a magnetic conductive member (23) provided in the U-shaped iron (21).

10. The bone conduction vibration horn of claim 9, wherein the at least one magnet (22) comprises two magnets (22) disposed on either side of the magnetically permeable member (23).