CN219802576U - Bone and gas conduction two-in-one loudspeaker - Google Patents

Abstract

The utility model discloses a bone and air conduction two-in-one loudspeaker, which comprises a loudspeaker front cover, a loudspeaker rear cover, a loudspeaker bracket, a voice coil, a diaphragm, a washer, a magnet, U-shaped iron and a vibrating piece; the loudspeaker front cover is coated outside the diaphragm and limited by the upper end face of the loudspeaker support, the loudspeaker support is provided with a containing space, the voice coil is installed on the diaphragm and extends into the containing space, the vibrating piece, the U iron, the magnet and the washer are all arranged in the containing space, hua Sidie is arranged on the magnet, the magnet is arranged in the U iron, the vibrating piece abuts against the lower end face of the U iron, the loudspeaker rear cover is coated outside the vibrating piece and limited by the lower end face of the loudspeaker support, and the periphery side of the loudspeaker rear cover is provided with a vent hole which is communicated in the containing space, so that the loudspeaker has the advantages of bone conduction and air conduction, and the tone quality of an overall product is greatly improved.

Description

Bone and gas conduction two-in-one loudspeaker

Technical Field

The utility model relates to the technology of the field of horns, in particular to a bone and air conduction two-in-one horn.

Background

The earphone is an electronic product widely applied to daily life of people, and can be matched with electronic equipment such as a mobile phone, a computer and the like for use so as to provide hearing feast for people.

The horn units used in the earphone in the market mainly comprise two main types, namely an air conduction horn and a bone conduction horn. The air conduction loudspeaker vibrates through the diaphragm to push air to generate sound pressure so as to be transmitted to human ears; bone conduction is a sound conduction mode, i.e., converting sound into mechanical vibrations of different frequencies, transmitting sound waves through a person's skull, bone labyrinth, augers, and auditory centers. The sound generating structure is a core component of the bone conduction sound generating device and is used for converting an electric signal into a mechanical signal and generating mechanical vibration to output sound.

The loudspeaker in the prior art is a single air conduction loudspeaker or a single bone conduction loudspeaker, so that the loudspeaker has the advantages of the two loudspeakers at the same time, because the bone conduction loudspeaker is limited by the bone conduction loudspeaker, the traditional main positioning of the bone conduction earphone is a 'sports earphone', the advantages of the bone conduction earphone in sports scenes are described, the sound quality of the bone conduction earphone cannot reach the level of a daily song listening earphone (equivalent price), such as low-pitched sound, sound leakage and the like, and the bone conduction earphone is not provided with the price advantage compared with a wired earphone with the equivalent price, so that people can use the bone conduction earphone only in the specific scenes of sports. Each product has its own advantages and disadvantages, and if you choose headphones for bone conduction speakers, you will suffer from poor sound quality and a slightly higher price, bone conduction products are deficient in music, with emphasis on low frequency deficiency and capture of music details.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide a bone and air conduction two-in-one speaker, which has the advantages of both bone conduction and air conduction speakers by designing a front speaker cover, a rear speaker cover, a speaker bracket, a voice coil, a diaphragm, a washer, a magnet, a U-iron and a vibrating piece, so that the sound quality of the whole product is greatly improved, and the sound of the other party can be clearly heard even in noisy environments.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a bone and air conduction two-in-one loudspeaker comprises a loudspeaker front cover, a loudspeaker rear cover, a loudspeaker bracket, a voice coil, a diaphragm, a washer, a magnet, U-shaped iron and a vibrating piece;

the loudspeaker front cover is coated outside the diaphragm and limited by the upper end face of the loudspeaker support, the loudspeaker support is provided with a containing space, the voice coil is installed on the diaphragm and extends into the containing space, the vibrating piece, the U iron, the magnet and the washer are all arranged in the containing space, hua Sidie is arranged on the magnet, the magnet is arranged in the U iron, the vibrating piece abuts against the lower end face of the U iron, the loudspeaker rear cover is coated outside the vibrating piece and limited by the lower end face of the loudspeaker support, and the peripheral side of the loudspeaker rear cover is provided with an air leakage hole which is communicated in the containing space.

Preferably, the vibrating piece, the U iron, the magnet and the washer are fixed through a connecting piece.

As a preferable scheme, the vibrating piece, the U iron, the magnet and the washer are all provided with through holes, and the connecting piece sequentially stretches into the through holes of the vibrating piece, the U iron, the magnet and the washer to form fixation.

As a preferred embodiment, the connecting member is a rivet.

As a preferred scheme, the vibrating piece is including middle annular plate portion, periphery annular locating limit and a plurality of elastic arm, periphery annular locating limit encircles the periphery that sets up in middle annular plate portion, and is formed with the annular between the outer loop side of periphery annular locating limit and middle annular plate portion and dodges the groove, the elastic arm is hung in the annular and is dodged the inslot, the inner of elastic arm is connected in the outer loop side of middle annular plate portion, the outer end of elastic arm is connected in the inner loop side of periphery annular locating limit, its design of vibrating piece for the air current can be smooth and easy pass the vibrating piece, and forms the rear chamber of moving coil loudspeaker with loudspeaker back lid.

Preferably, the vibrating piece is a ring-shaped vibrating piece, and the vibrating piece is made of copper or stainless steel.

As a preferred scheme, the periphery side of loudspeaker back lid corresponds the laminating of gas vent department and has the screen cloth, controls the ventilation volume through screen cloth density to satisfy the tone quality adjustment of moving coil formula air conduction loudspeaker, in addition, the screen cloth also plays dustproof effect.

As a preferred embodiment, the voice coil is adhesively fixed to the diaphragm.

As a preferred scheme, the bone and air conduction two-in-one loudspeaker further comprises a PCB (printed circuit board) which is positioned on the lower end face of the loudspeaker rear cover.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and particularly, the technical scheme is that the loudspeaker mainly comprises a loudspeaker front cover, a loudspeaker rear cover, a loudspeaker bracket, a voice coil, a diaphragm, a washer, a magnet, U iron and a vibrating piece, wherein the voice coil cuts a magnetic field in a magnetic circuit formed by the U iron, the magnet and the washer, so that the magnetic circuit formed by the U iron, the magnet and the washer drives the vibrating piece to vibrate, and the vibration is transmitted to a human body contact part through the loudspeaker front cover, so that bone conduction of sound is realized; in addition, because the voice coil is fixed on the diaphragm, the reverse acting force that the voice coil cutting magnetic field produced can make the voice coil drive the diaphragm to vibrate, the vibration of diaphragm passes through the air conduction to people's ear, thereby realize the air conduction of sound, still be the mode that utilizes air conduction system and bone conduction system to share the voice coil, consequently, can transmit through air conduction and bone conduction simultaneously when the voice coil received audio signal, thereby have simultaneously air conduction loudspeaker sound separation degree, the advantage that the reduction degree is high and bone conduction speaker need not to plug the ear reducible to the advantage of human tympanic membrane injury, make whole product tone quality have a wide margin improvement, even make it in the environment of noisy, also can clearly hear the sound of opposite side.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

FIG. 3 is an exploded view of an embodiment of the present utility model;

fig. 4 is a structural view of a vibrating plate according to an embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. horn front cover 11, first bending hood edge

111. A first transverse annular portion 112, a first vertical annular portion

20. Horn rear cover 21, second bending cover edge

211. A second transverse annular portion 212, a second vertical annular portion

22. Venting holes 23, mesh cloth

30. Horn bracket 31 and accommodation space

32. First and second horizontal annular edges 33, 33

40. Voice coil 50, diaphragm

41. Gap groove 60, washer

70. Magnet 80, U iron

81. Magnet mounting recess 90 and vibrating piece

91. Through hole 92, intermediate annular plate portion

93. Peripheral annular locating edge 94, elastic arm

95. Annular avoidance groove 100 and connecting piece

110. And a PCB board.

Detailed Description

Referring to fig. 1 to 4, specific structures of embodiments of the present utility model are shown.

In the description of the present utility model, it should be noted that, for the azimuth words, terms such as "upper", "lower", "front", "rear", "left", "right", etc., indicate azimuth and positional relationships as shown based on the drawings or when worn normally, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the device or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

A bone-air conduction two-in-one loudspeaker comprises a loudspeaker front cover 10, a loudspeaker rear cover 20, a loudspeaker bracket 30, a voice coil 40, a diaphragm 50, a washer 60, a magnet 70, U-shaped iron 80 and a vibrating piece 90.

The horn front cover 10 is covered outside the diaphragm 50 and limited by the upper end surface of the horn support 30, the horn front cover 10 has a first bending hood edge 11, and the first bending hood edge 11 has a first transverse annular portion 111 and a first vertical annular portion 112 integrally connected to the outer periphery of the first transverse annular portion 111.

The horn support 30 has a receiving space 31, a first horizontal annular edge 32 is provided on the peripheral side of the upper end surface of the horn support 30, a second horizontal annular edge 33 is provided on the peripheral side of the lower end surface of the horn support 30, and the first horizontal annular portion 111 is pressed on the first horizontal annular edge 32 of the horn support 30.

The voice coil 40 is mounted on the diaphragm 50 and extends into the accommodating space 31, and preferably, the voice coil 40 is adhered and fixed to the diaphragm 50. A clearance groove 41 is formed between the inner peripheral side of the U-shaped iron 80 and the magnet 70 and the washer 60, and the bottom of the voice coil 40 extends into the clearance groove 41. One end of the diaphragm 50 abuts between the first horizontal annular rim 32 and the first transverse annular portion 111.

The vibrating reed 90, the U-shaped iron 80, the magnet 70 and the washer 60 are all arranged in the accommodating space, the washer 60 is overlapped on the magnet 70, the magnet 70 is arranged in the U-shaped iron 80, the U-shaped iron 80 is provided with a main body part, the main body part is provided with a magnet mounting concave position 81 concavely arranged downwards, the magnet 70 is arranged in the magnet mounting concave position 81,

the vibrating piece 90 abuts against the lower end face of the U-shaped iron 80, the speaker rear cover 20 is wrapped outside the vibrating piece 90 and limited by the lower end face of the speaker bracket 30, the air leakage hole 22 is arranged on the outer periphery side of the speaker rear cover 20, and the air leakage hole 22 is communicated in the accommodating space 31. Preferably, the mesh cloth 23 is attached to the outer peripheral side of the horn rear cover 20 corresponding to the air release hole 22, and the ventilation amount is controlled by the density of the mesh cloth 23 so as to meet the tone quality adjustment of the moving-coil air guide horn, and in addition, the mesh cloth 23 can play a role in dust prevention.

The horn rear cover 20 has a second bending hood edge 21, the second bending hood edge 21 has a second transverse annular portion 211 and a second vertical annular portion 212 integrally connected to the outer periphery of the second transverse annular portion 211, and the second transverse annular portion 211 is pressed on the second horizontal annular edge 33 of the horn bracket 30.

Preferably, the vibrating plate 90, the U-iron 80, the magnet 70 and the washer 60 are fixed by a connector 100. The vibrating piece 90, the U-shaped iron 80, the magnet 70 and the washer 60 are all provided with through holes 91, and the connecting piece 100 sequentially extends into the vibrating piece 90, the U-shaped iron 80, the magnet 70 and the washer 60 to be fixed in the through holes 91. The connecting piece 100 is a rivet, and the vibrating piece 90 is riveted with the U-shaped iron 80, the magnet 70 and the magnetic circuit part of the washer 60 by means of the rivet, so that the whole structure of the product is stable, and the whole structure of the product is formed, thereby enhancing the sound transmission capability of bone conduction and greatly improving the quality of the product.

Preferably, the vibration plate 90 is a circular ring-shaped vibration plate 90, and the vibration plate 90 is made of copper or stainless steel. The vibrating plate 90 includes a middle annular plate 92, an outer annular positioning edge 93, and a plurality of elastic arms 94, and the outer annular positioning edge 93 of the vibrating plate 90 abuts between the second horizontal annular edge 33 and the second transverse annular portion 211.

The outer circumference annular positioning edge 93 is arranged around the periphery of the middle annular plate portion 92, an annular avoidance groove 95 is formed between the inner annular side of the outer circumference annular positioning edge 93 and the outer annular side of the middle annular plate portion 92, the elastic arms 94 are suspended in the annular avoidance groove 95, the inner ends of the elastic arms 94 are connected to the outer annular side of the middle annular plate portion 92, the outer ends of the elastic arms 94 are connected to the inner annular side of the outer circumference annular positioning edge 93, and the vibration piece 90 is designed so that air flow can smoothly pass through the vibration piece 90 and form a rear cavity of the moving coil loudspeaker with the loudspeaker rear cover 20.

The bone-air conduction two-in-one loudspeaker further comprises a PCB 110, the PCB 110 is located on the lower end face of the loudspeaker rear cover 20, and welding spots are further formed on the lower end face of the PCB 110. The audio alternating electric signal received by the PCB 110 of the loudspeaker is transmitted to the voice coil 40, and the voice coil 40 cuts a magnetic field in a magnetic circuit formed by the U-shaped iron 80, the magnet 70 and the washer 60, so that the magnetic circuit formed by the U-shaped iron 80, the magnet 70 and the washer 60 drives the vibration piece 90 to vibrate, and the vibration is transmitted to a human body contact part through the loudspeaker front cover 10, so that the bone conduction of sound is realized.

The design of the utility model is mainly characterized in that the design of the front cover of the loudspeaker, the rear cover of the loudspeaker, the loudspeaker bracket, the voice coil, the diaphragm, the washer, the magnet, the U iron and the vibrating piece is adopted, and the magnetic field is cut in the magnetic circuit formed by the U iron, the magnet and the washer through the voice coil, so that the magnetic circuit formed by the U iron, the magnet and the washer drives the vibrating piece to vibrate, and the vibration is transmitted to the contact part of the human body through the front cover of the loudspeaker, thereby realizing the bone conduction of sound; in addition, because the voice coil is fixed on the diaphragm, the reverse acting force that the voice coil cutting magnetic field produced can make the voice coil drive the diaphragm to vibrate, the vibration of diaphragm passes through the air conduction to people's ear, thereby realize the air conduction of sound, still be because air conduction system and bone conduction system share voice coil, consequently, can transmit through air conduction and bone conduction's mode simultaneously when the voice coil received audio signal, thereby have simultaneously air conduction loudspeaker sound separation degree, the advantage that the reduction degree is high and bone conduction speaker need not to plug the ear reducible advantage to human tympanic membrane injury, make whole product tone quality have a big margin improvement, even make it in the environment of noisy, also can clearly hear the sound of opposite side.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims (9)

1. The utility model provides a bone gas conduction two unification loudspeaker which characterized in that: comprises a front loudspeaker cover, a rear loudspeaker cover, a loudspeaker bracket, a voice coil, a diaphragm, a washer, a magnet, U-shaped iron and a vibrating piece;

the loudspeaker front cover is coated outside the diaphragm and limited by the upper end face of the loudspeaker support, the loudspeaker support is provided with a containing space, the voice coil is installed on the diaphragm and extends into the containing space, the vibrating piece, the U iron, the magnet and the washer are all arranged in the containing space, hua Sidie is arranged on the magnet, the magnet is arranged in the U iron, the vibrating piece abuts against the lower end face of the U iron, the loudspeaker rear cover is coated outside the vibrating piece and limited by the lower end face of the loudspeaker support, and the periphery side of the loudspeaker rear cover is provided with an air leakage hole which is communicated in the containing space.

2. The bone and air conduction two-in-one loudspeaker according to claim 1, wherein: the vibrating piece, the U iron, the magnet and the washer are fixed through a connecting piece.

3. The bone and air conduction two-in-one loudspeaker according to claim 2, wherein: the vibrating piece, the U iron, the magnet and the washer are all provided with through holes, and the connecting piece sequentially stretches into the through holes of the vibrating piece, the U iron, the magnet and the washer to be fixed.

4. A bone and air conduction two-in-one loudspeaker according to claim 3, wherein: the connecting piece is a rivet.

5. The bone and air conduction two-in-one loudspeaker according to claim 1, wherein: the vibrating piece comprises a middle annular plate part, a peripheral annular positioning edge and a plurality of elastic arms, wherein the peripheral annular positioning edge is arranged on the periphery of the middle annular plate part in a surrounding mode, an annular avoidance groove is formed between the inner ring side of the peripheral annular positioning edge and the outer ring side of the middle annular plate part, the elastic arms are suspended in the annular avoidance groove, the inner ends of the elastic arms are connected to the outer ring side of the middle annular plate part, and the outer ends of the elastic arms are connected to the inner ring side of the peripheral annular positioning edge.

6. The bone and air conduction two-in-one loudspeaker according to claim 1, wherein: the vibrating piece is a ring-shaped vibrating piece, and is made of copper or stainless steel.

7. The bone and air conduction two-in-one loudspeaker according to claim 1, wherein: the outer periphery side of the loudspeaker rear cover is attached with mesh cloth corresponding to the air leakage hole.

8. The bone and air conduction two-in-one loudspeaker according to claim 1, wherein: the voice coil is fixedly adhered to the diaphragm.

9. The bone and air conduction two-in-one loudspeaker according to claim 1, wherein: the bone-air conduction two-in-one loudspeaker further comprises a PCB (printed circuit board) which is positioned on the lower end face of the loudspeaker rear cover.