CN212812016U

CN212812016U - Sound production device

Info

Publication number: CN212812016U
Application number: CN202021309960.3U
Authority: CN
Inventors: 严绪东; 邵涛; 顾小江
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-03-26
Anticipated expiration: 2030-07-06
Also published as: WO2022007176A1

Abstract

The utility model provides a sounding device, its including vibration system and the drive that is used for vibrating the sound production vibration system vibration sound production and have the magnetic circuit in magnetic gap, vibration system includes the vibrating diaphragm, inserts and locates magnetic gap and drive the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and general the voice coil loudspeaker voice coil with the skeleton that the vibrating diaphragm is connected, the skeleton including laminate in the vibrating diaphragm is close to the skeleton body of voice coil loudspeaker voice coil one side, by the skeleton body is kept away from one end of vibrating diaphragm to two at least mutual spaced's that the magnetic gap of buckling extends skeleton support arm and by the skeleton support arm is kept away from the one end of skeleton body is followed the skeleton linking arm that the periphery of voice coil loudspeaker voice coil extends, all the skeleton linking arm connects gradually and forms integrative annular structure, the skeleton linking arm with voice coil loudspeaker voice coil fixed connection. Compared with the prior art, the utility model discloses a sounding device reliability is better.

Description

Sound production device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic conversion field especially relates to an apply to vocal device of electron audio amplifier product.

[ background of the invention ]

The sound generating device is also called a loudspeaker or a loudspeaker, and is applied to a sound box to convert an audio signal into sound for playing.

The sound production device of the related art comprises a vibration system for vibration sound production and a magnetic circuit system for driving the vibration system to vibrate and produce sound and having a magnetic gap, wherein the vibration system comprises a vibrating diaphragm, a voice coil inserted in the magnetic gap and driving the vibrating diaphragm to vibrate and produce sound and a framework connected with the voice coil and the vibrating diaphragm.

However, in the sound device in the related art, the voice coil is only glued and fixed with one end or the side surface of the framework, and the gluing area is small, so that the voice coil and the framework are easily separated under the condition of high-power vibration and sound generation of the sound device, and the reliability is poor.

Therefore, there is a need to provide a new sound generation device to solve the above technical problems.

[ Utility model ] content

An object of the utility model is to provide a better vocal device of reliability.

In order to achieve the above object, the present invention provides a sound generating device, which comprises a vibration system for generating sound by vibration and a magnetic circuit system having a magnetic gap for driving the vibration system to generate sound by vibration, the vibration system comprises a vibrating diaphragm, a voice coil and a framework, wherein the voice coil is inserted into the magnetic gap and drives the vibrating diaphragm to vibrate and produce sound, the skeleton including laminate in the vibrating diaphragm is close to the skeleton body of voice coil loudspeaker voice coil one side, by the skeleton body is kept away from the one end of vibrating diaphragm to two at least mutual spaced's that the magnetic gap is buckled and is extended skeleton support arm and by the skeleton support arm is kept away from the one end of skeleton body is followed the skeleton linking arm that the periphery of voice coil loudspeaker voice coil extends, all the skeleton linking arm connects gradually and forms integrative annular structure, the skeleton linking arm with voice coil loudspeaker voice coil fixed connection.

Preferably, the bobbin support arm is disposed around the voice coil and is abutted against and fixed to an outer peripheral side of the voice coil.

Preferably, the framework connecting arm is fixed on one side of the voice coil, which is close to the vibrating diaphragm.

Preferably, the skeleton connecting arm completely falls into the range of the voice coil along the vibration direction of the vibrating diaphragm to the orthographic projection of the voice coil.

Preferably, the skeleton support arm includes certainly the skeleton body to the first section that the magnetic gap direction was buckled and is extended and by first section is followed the outside of voice coil loudspeaker voice coil is to being close to the second section that the vibrating diaphragm direction was buckled and is extended, and is a plurality of the second section of skeleton support arm is kept away from the one end of first section connect in the outside of skeleton linking arm is in order to form and dodge the step.

Preferably, the skeleton support arm includes three and mutual equidistant setting.

Preferably, the framework body is annular, the diaphragm comprises an annular first flange part and an annular second flange part, and the first flange part surrounds the second flange part and is spaced from the second flange part; the framework body is located between the first flange portion and the second flange portion, the outer side of the framework body is connected with the first flange portion, and the inner side of the framework body is connected with the second flange portion.

Preferably, the sound production device further comprises a basin frame for supporting and fixing the magnetic circuit system and the vibration system, and the outer side of the first flange part and the inner side of the second flange part are both fixed on the basin frame.

Preferably, the basin frame is including the first leg that has accommodating space, around locating first leg and with first leg is the second leg and the connection that the interval set up first leg with the connection wall of second leg, magnetic circuit accept in accommodating space, first book the outside of ring portion with the second is folded the inboard of ring portion and is fixed in respectively the second leg with the upper end of first leg, first leg is equipped with and runs through on it and is used for dodging the portion of dodging of skeleton support arm.

Preferably, the sounding device further comprises a sealing ring pressed on the inner side of the second flange part, far away from one side of the basin frame, and wound around the periphery of the magnetic circuit system.

Preferably, the magnetic circuit system comprises a first magnetic bowl, a magnetic steel unit accommodated and fixed in the first magnetic bowl, and a second magnetic bowl covered and arranged on the magnetic steel unit, the magnetic steel unit and the first magnetic bowl form the magnetic gap at an interval, the first magnetic bowl and the second magnetic bowl are both provided with a gap penetrating through the first magnetic bowl and used for avoiding the framework supporting arm, and the sealing ring is arranged around the periphery of the second magnetic bowl.

Preferably, the voice coil comprises a voice coil lead wire extending outwards along one side of the framework close to the magnetic circuit system, the framework further comprises a groove formed by one side of the framework far away from the vibrating diaphragm and close to the vibrating diaphragm, and the voice coil lead wire is contained in the groove.

Preferably, the sound production device further comprises a flexible circuit board fixed on one side of the frame far away from the vibrating diaphragm, and the voice coil lead is electrically connected with the flexible circuit board.

Compared with the prior art, in the sound production device of the present invention, the skeleton includes a skeleton body attached to one side of the vibrating diaphragm close to the voice coil, at least two mutually spaced skeleton supporting arms extending from one end of the skeleton body away from the vibrating diaphragm to the magnetic bending gap, and a skeleton connecting arm extending from one end of the skeleton supporting arm away from the skeleton body along the periphery of the voice coil, all the skeleton connecting arms are sequentially connected to form an integral annular structure, and the skeleton connecting arm is fixedly connected with the voice coil; the skeleton has increased with the skeleton linking arm that the voice coil loudspeaker voice coil is connected has increased the region of gluing of voice coil loudspeaker voice coil and skeleton promptly, promotes voice coil loudspeaker voice coil and skeleton cohesion, can improve the problem that voice coil loudspeaker voice coil skeleton separates under the high-power vibration of vocal device is sounded, and the reliability is better.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic perspective view of the sound device of the present invention;

fig. 2 is an exploded view of a part of the three-dimensional structure of the sound device of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 1;

fig. 4 is a schematic three-dimensional structure view of the ball top and the skeleton of the sound production device of the present invention;

fig. 5 is a schematic view of an assembly structure of the dome, the frame and the voice coil of the sound device of the present invention;

fig. 6 is an exploded perspective view of another part of the present invention, wherein (6a) is an assembly diagram of the bobbin, the frame, the voice coil leads and the flexible circuit board, and (6b) is an enlarged diagram of a in (6 a).

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a sound generating device 100, which includes a frame 1, a vibration system 2 and a magnetic circuit system 3 supported and fixed on the frame 1, a sealing ring 4, and a flexible circuit board 5, wherein the magnetic circuit system 3 has a magnetic gap 30. The vibration system 2 may be fixed to the magnetic circuit system 3, and is not limited to the frame 1.

Basin frame 1 is including the first leg 11 that has accommodating space 110, around locating first leg 11 and with first leg 11 is third leg 12 and second leg 13 and the connection that the interval set up first leg 11 third leg 12 and the connection wall 14 of second leg 13, first leg 11 third leg 12 and second leg 13 arrange from inside to outside in proper order, first leg 11 is equipped with and runs through it and is used for dodging the portion 111 of dodging of skeleton support arm 231 of following.

Vibration system 2 is used for the vibration sound production, and it includes vibrating diaphragm 21, insert locate magnetic gap 30 and be cyclic annular and be used for the drive vibrating diaphragm 21 vibration sound production's voice coil 22 and skeleton 23, voice coil 22 includes the voice coil lead wire 221 of being connected the signal of telecommunication with the external world, and voice coil lead wire 221 is followed skeleton 23 is close to magnetic circuit 3 one side is outwards extended, below skeleton 23 include by skeleton 23 is kept away from one side of vibrating diaphragm 21 is close to the sunken recess 23a that forms of vibrating diaphragm 21, voice coil lead wire 221 accept in recess 23a, promptly voice coil lead wire 221 sets up in the inside of skeleton 23, does not occupy the space of sound production device 100, and voice coil lead wire 23a also does not interfere with other parts simultaneously, and the overall arrangement is more reasonable. The flexible circuit board 5 is fixed to the second surrounding wall 13 and one side of the third surrounding wall 12 far away from the vibrating diaphragm 21 in a clamping manner, the flexible circuit board 5 can also be fixed to other positions of the basin frame 1, and the voice coil lead 221 is electrically connected with the flexible circuit board 5 to provide an electric signal for the whole sounding device 100.

The diaphragm 21 includes a first ring-shaped ring-folded portion 2121 and a second ring-shaped ring-folded portion 2122, and the first ring-folded portion 2121 surrounds the second ring-folded portion 2122 and is spaced from the second ring-folded portion; the lower frame body 233 is located between the first hinge part 2121 and the second hinge part 2122, the outer side of the frame body 233 is connected to the first hinge part 2121, and the inner side of the frame body 233 is connected to the second hinge part 2122; the outer side of the first folding ring part 2121 and the inner side of the second folding ring part 2122 are both fixed to the basin frame 1, and specifically, the outer side of the first folding ring part 2121 and the inner side of the second folding ring part 2122 are respectively fixed to the upper ends of the second wall 13 and the first wall 11. That is, the skeleton body 233 serves as a dome, so that the number of parts and the assembly process are reduced, the cost is saved, the strength of the whole vibrating diaphragm 21 is improved, and the vibrating effect of the vibrating diaphragm 21 is better

One end of the framework 23 is connected with the ball diaphragm 21, and the other end of the framework 23 is connected with the voice coil 22.

Skeleton 23 including laminate in vibrating diaphragm 21 is close to the skeleton body 233 of voice coil 22 one side, by skeleton body 233 keeps away from the one end of vibrating diaphragm 21 to magnetic gap 30 buckles at least two mutual spaced apart skeleton support arms 231 that extend and by skeleton support arm 231 keeps away from the one end of skeleton body 233 is followed the skeleton linking arm 232 that the periphery of voice coil 22 extends, all skeleton linking arm 232 connects gradually and forms integrative annular structure, skeleton linking arm 232 with voice coil 22 fixed connection, in this embodiment, skeleton linking arm 232 with voice coil 22 veneer is fixed. The skeleton 23 has increased with the skeleton linking arm 232 that voice coil 22 is connected, has increased the region of gluing of voice coil 22 and skeleton 23 promptly, promotes voice coil 22 and skeleton 23 cohesion, can improve the problem that voice coil 22 and skeleton 23 separated under the high-power vibration sound production of vocal device 100, and the reliability is better.

Specifically, skeleton support arm 231 encircles voice coil 22 sets up and the butt is fixed in voice coil 22's periphery side, promptly skeleton linking arm 232 is cyclic annular, and is a plurality of skeleton support arm 231 distribute in the outside of skeleton linking arm 232, the supporting effect is better, and the atress is more even, can prevent the fracture of its skeleton 23 under the high-power vibration of again.

Skeleton linking arm 232 is fixed in voice coil 22 is close to one side of vibrating diaphragm 21, it is preferred, skeleton linking arm 232 follows vibrating diaphragm 21's vibration direction to voice coil 22's orthographic projection falls into completely the voice coil 22 within range, guaranteeing to glue under the regional condition of beating of voice coil 22 and skeleton 23 promptly, reduce skeleton linking arm 232's materials and volume, cost reduction, space utilization is better.

In this embodiment, the skeleton support arms 231 include three and are arranged at equal intervals. Specifically, the bobbin support arm 231 includes a first section 2311 bent and extended from the bobbin body 233 toward the magnetic gap 30 and a second section 2312 bent and extended from the first section 2311 along the outer side of the voice coil 22 toward the direction close to the diaphragm 21, one end of the second section 2312 of the bobbin support arm 231, which is far away from the first section 2311, is connected to the outer side of the bobbin connection arm 232 to form an avoidance step 230, the avoidance step 230 provides an avoidance space for the voice coil 22, and the avoidance step 230 is attached to the upper end of the voice coil 22, so that the space utilization rate is higher, and meanwhile, the left-right swinging of the voice coil 22 can be prevented, and the reliability of the sound generating device 100 is improved.

Magnetic circuit 3 accept in accommodating space 110 just is used for the drive 2 vibration sound production of vibration system, it is including being fixed in the first magnetic bowl 31 of basin frame 1, accept to be fixed in magnet steel unit 32 in the first magnetic bowl 31 and lid are located the second magnetic bowl 33 of magnet steel unit 32, magnet steel unit 32 with first magnetic bowl 31 interval forms magnetic gap 30, first magnetic bowl 31 with second magnetic bowl 33 all is equipped with and runs through it and is used for dodging the clearance 34 of skeleton support arm 231.

The sealing ring 4 is pressed and arranged on the inner side of the second flange part 2122 and is far away from one side of the basin frame 1, the sealing ring 4 is pressed and arranged on the inner side of the second flange part 2122 and is arranged on the basin frame 1, and meanwhile, the sealing ring 4 surrounds the periphery of the second magnetic bowl 33, so that the sealing effect is better.

Compared with the prior art, in the sound production device of the present invention, the skeleton includes a skeleton body attached to one side of the vibrating diaphragm close to the voice coil, at least two mutually spaced skeleton supporting arms bent and extended from one end of the skeleton body far away from the vibrating diaphragm to the magnetic gap, and skeleton connecting arms extended from one end of the skeleton supporting arms far away from the skeleton body along the periphery of the voice coil, all the skeleton connecting arms are sequentially connected to form an integral annular structure, and the skeleton connecting arms are fixedly connected with the voice coil; the skeleton has increased with the skeleton linking arm that the voice coil loudspeaker voice coil is connected has increased the region of gluing of voice coil loudspeaker voice coil and skeleton promptly, promotes voice coil loudspeaker voice coil and skeleton cohesion, can improve the problem that voice coil loudspeaker voice coil skeleton separates under the high-power vibration of vocal device is sounded, and the reliability is better.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. The utility model provides a sounder, its is including vibration system and the drive that is used for the vibration sound production vibration system vibration sound production and have the magnetic circuit in magnetic gap, vibration system includes the vibrating diaphragm, inserts and locates magnetic gap and drive the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and general the voice coil loudspeaker voice coil with the skeleton that the vibrating diaphragm is connected, a serial communication port, the skeleton is including laminating the vibrating diaphragm is close to the skeleton body of voice coil loudspeaker voice coil one side, by the skeleton body is kept away from the one end of vibrating diaphragm to two at least mutual spaced's that the magnetic gap buckles to extend skeleton support arm and by the skeleton support arm is kept away from the one end of skeleton body is followed the skeleton linking arm that the periphery of voice coil loudspeaker voice coil extends, all the skeleton linking arm connects gradually and forms integrative annular structure, the skeleton linking arm with.

2. The sounding device according to claim 1, wherein the skeletal support arm is disposed around the voice coil and fixed in abutting contact with an outer peripheral side of the voice coil.

3. The sounding device according to claim 2, wherein the bobbin connecting arm is fixed to a side of the voice coil near the diaphragm.

4. The sounding device according to claim 3, wherein the orthographic projection of the skeleton connecting arm to the voice coil along the vibration direction of the diaphragm falls completely within the range of the voice coil.

5. The sounding device according to claim 3, wherein the bobbin support arm includes a first section extending from the bobbin body to the magnetic gap and a second section extending from the first section to the outside of the voice coil and extending from the first section to the diaphragm, and ends of the second sections of the bobbin support arms, which are away from the first section, are connected to the outside of the bobbin connection arm to form an avoiding step.

6. The sounder device according to claim 2, wherein the skeletal support arm comprises three and equally spaced apart from one another.

7. The sound production device according to claim 1, wherein the skeleton body is annular, and the diaphragm comprises a first annular flange part and a second annular flange part, the first flange part surrounds the second flange part and is spaced from the second flange part; the framework body is located between the first flange portion and the second flange portion, the outer side of the framework body is connected with the first flange portion, and the inner side of the framework body is connected with the second flange portion.

8. The sounding device according to claim 7, further comprising a basin frame for supporting and fixing the magnetic circuit system and the vibration system, wherein the outer side of the first flange portion and the inner side of the second flange portion are both fixed on the basin frame.

9. The sounding device according to claim 8, wherein the basin frame comprises a first wall having a receiving space, a second wall surrounding the first wall and spaced from the first wall, and a connecting wall connecting the first wall and the second wall, the magnetic circuit system is received in the receiving space, the outer side of the first folding portion and the inner side of the second folding portion are fixed to the upper ends of the second wall and the first wall, respectively, and the first wall is provided with an avoiding portion penetrating the first wall for avoiding the skeletal support arm.

10. The sounding device according to claim 9, further comprising a sealing ring pressed on a side of the inner side of the second flange portion away from the basin stand and surrounding the periphery of the magnetic circuit system.

11. The sounder device according to claim 10, wherein the magnetic circuit system includes a first magnetic bowl, a magnetic steel unit received and fixed in the first magnetic bowl, and a second magnetic bowl covered on the magnetic steel unit, the magnetic steel unit and the first magnetic bowl are spaced to form the magnetic gap, the first magnetic bowl and the second magnetic bowl are both provided with a gap penetrating through the first magnetic bowl and used for avoiding the framework support arm, and the sealing ring is disposed around a periphery of the second magnetic bowl.

12. The sounding device according to claim 9, wherein the voice coil comprises a voice coil lead extending outward along a side of the bobbin close to the magnetic circuit system, the bobbin further comprises a groove formed by recessing a side of the bobbin away from the diaphragm toward a side close to the diaphragm, and the voice coil lead is accommodated in the groove.

13. The sounder device according to claim 12, further comprising a flexible circuit board secured to a side of the frame remote from the diaphragm, wherein the voice coil leads are electrically connected to the flexible circuit board.