CN210016613U

CN210016613U - Sound production device

Info

Publication number: CN210016613U
Application number: CN201920724543.6U
Authority: CN
Inventors: 章统; 曾健
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-02-04
Anticipated expiration: 2029-05-17

Abstract

The utility model provides a sounding device, it includes the basin frame, supports to be fixed in the vibrating diaphragm and the lid of basin frame connect in the basin frame is located the vibrating diaphragm is kept away from the protecgulum of basin frame one side, the basin frame is including enclosing into accommodating space's lateral wall, the lateral wall is fixed including supporting the top surface of vibrating diaphragm, the basin frame still includes certainly the top surface of lateral wall is to being close to the bellying that the protecgulum direction extends the formation, the bellying is relative the height of top surface is more than or equal to the thickness of vibrating diaphragm, the protecgulum lid connect in the top of bellying, the vibrating diaphragm set up in the top surface with between the protecgulum. Compared with the prior art, the utility model provides a sounder sets up the bellying through the top surface at the basin frame, the protecgulum lid connect in the top of bellying for the vibrating diaphragm not direct with the protecgulum contact, thereby can avoid the vibrating diaphragm is because of receiving deformation takes place for the extrusion of protecgulum, sounder's acoustic performance is more stable.

Description

Sound production device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric conversion field especially relates to a sounding device.

[ background of the invention ]

The sounding device is widely applied to various electronic products, and the performance of the sounding device directly affects the functions of the electronic products with the sounding device. With the rapid development of portable electronic devices, people have higher and higher requirements on the performance of sound generating devices. In the conventional structure, the front cover and the basin frame are respectively in direct contact with the sound film. After being loaded into the handset, if the pressure on the frame is high, this pressure is transmitted first to the diaphragm and then to the front cover. Similarly, if the front cover is pressed greatly, the pressure is firstly transmitted to the sound film and then transmitted to the basin stand. The sound membrane is made of soft material and is easy to deform when directly bearing pressure, thereby influencing the product performance

The sound production device of prior art usually includes the basin frame, support in vibrating diaphragm, the drive of basin frame the voice coil loudspeaker voice coil and the lid of vibrating diaphragm vibration are located the protecgulum of basin frame, the periphery clamp of vibrating diaphragm is located the basin frame with between the protecgulum, promptly the basin frame with the protecgulum respectively directly with the vibrating diaphragm contact, work as after the sound production device is installed in electronic product, if the basin frame pressurized is great, then pressure at first transmits to the vibrating diaphragm on, and then transmits to the protecgulum, and the same reason, if the protecgulum pressurized is great, then pressure at first transmits to the vibrating diaphragm on, transmits to the basin frame, and because the vibrating diaphragm material is softer, takes place the deformation easily when directly bearing pressure to influence the acoustic performance of sound production device.

Therefore, there is a need to provide an improved sound production device to solve the above problems.

[ Utility model ] content

To the sound production device among the correlation technique because the vibrating diaphragm pressurized is out of shape easily to influence the technical problem of acoustic performance, the utility model provides a sound production device that vibrating diaphragm is difficult for the pressurized deformation.

The utility model provides a sounder, is fixed in including basin frame, support the vibrating diaphragm of basin frame and cover connect in the basin frame is located the vibrating diaphragm is kept away from the protecgulum of basin frame one side, the basin frame is including enclosing into accommodating space's lateral wall, the lateral wall is fixed including the support the top surface of vibrating diaphragm, the basin frame still include certainly the top surface of lateral wall is to being close to the bellying that the protecgulum direction extends the formation, the bellying is relative the highly more than or equal to of top surface the thickness of vibrating diaphragm, the protecgulum cover connect in the top of bellying, the vibrating diaphragm set up in the top surface with between the protecgulum.

Preferably, the raised portion is disposed proximate an outer edge of the top surface.

Preferably, the number of the convex parts is multiple, and the convex parts are arranged at intervals.

Preferably, the lateral wall includes a plurality of and end to end in proper order, every the top surface of lateral wall all is provided with at least one the bellying.

Preferably, the diaphragm includes a body portion and a fixing portion extending from an outer edge of the body portion and fixed to the frame, a height of the protruding portion relative to the top surface is greater than or equal to a thickness of the fixing portion, the fixing portion is disposed between the top surface and the front cover, and a position of the fixing portion corresponding to the protruding portion is provided with a notch avoiding the protruding portion.

Preferably, the protruding portion is long, and the protruding portion is located at a middle position of the side wall.

Preferably, the side wall includes a plurality of and end-to-end in proper order, and every the top surface of side wall all is provided with one the bellying, and a plurality of the bellying end-to-end links up and encloses into the loop configuration.

Preferably, the diaphragm includes a body portion and a fixing portion extending from an outer edge of the body portion and fixed to the frame, a height of the protrusion portion relative to the top surface is greater than or equal to a thickness of the fixing portion, and the fixing portion is disposed between the top surface and the front cover.

Preferably, the basin stand further comprises a positioning column formed by extending from the top surface to a direction close to the front cover, the front cover is provided with a positioning hole penetrating through the front cover and matched with the positioning column, and the positioning hole is sleeved on the positioning column.

Preferably, the vibrating diaphragm correspondingly forms an avoiding part for avoiding the positioning column.

Compared with the prior art, the utility model discloses a sounder sets up the bellying through the top surface at the basin frame, the protecgulum lid connect in the top of bellying for the vibrating diaphragm not direct with the protecgulum contact, thereby can avoid the vibrating diaphragm is because of receiving deformation takes place for the extrusion of protecgulum, the acoustic performance of sounder is more stable.

[ 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 a sound generating device according to the present invention;

FIG. 2 is an exploded view of the sound device of FIG. 1;

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

FIG. 4 is a schematic structural view of a preferred embodiment of the frame and the diaphragm of the sound production device shown in FIG. 1;

fig. 5 is a schematic structural view of another preferred embodiment of the frame and the diaphragm of the sound production device shown in fig. 1.

[ 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 to 3, the present invention provides a sound generating device 100, which includes a basin frame 1, a magnetic circuit system 2, a vibration system 3 and a front cover 4, wherein the front cover 4 is covered on the top of the basin frame 1, and the two cooperate to form a containing space for supporting and fixing the magnetic circuit system 2 and the vibration system 3.

The magnetic circuit system 2 comprises a magnetic frame 21 fixed on the basin stand 1, magnetic steel 22 arranged in the magnetic frame 21 and a pole core 23 attached to the surface of the magnetic steel 22. The magnetic frame 21 includes a bottom plate 211 and a side plate 212 extending from the bottom plate 211 in a bent manner toward the vibration system 3. The side plate 212 and the bottom plate 211 cooperate to define an accommodating space for accommodating the magnetic steel 22 and the pole core 23, and the magnetic steel 22 is fixed on the bottom plate 211 and is arranged at an interval with the side plate 212 to form a magnetic gap 20.

The vibration system 3 includes a diaphragm 31 and a voice coil 32 for driving the diaphragm 31 to vibrate, and the voice coil 32 is inserted in the magnetic gap 20. The diaphragm 31 includes a body 311 and a fixing part 312 extending from an outer edge of the body 311 and fixed to the frame 1. The diaphragm 31 is fixedly supported on the frame 1 through the fixing portion 312.

Specifically, please refer to fig. 4 in combination, the frame 1 includes a sidewall 11 enclosing an accommodating space, the sidewall 11 includes a top surface 111 supporting and fixing the diaphragm 31, the frame 1 further includes a protruding portion 12 extending from the top surface 111 of the sidewall 11 to a direction close to the front cover 4, a height of the protruding portion 12 relative to the top surface 111 is greater than or equal to a thickness of a fixing portion 312 of the diaphragm 31, the front cover 4 covers a top end of the protruding portion 12, and the fixing portion 312 is disposed between the top surface 111 and the front cover 4. Because the height of the protruding portion 12 relative to the top surface 111 is greater than or equal to the thickness of the fixing portion 312, which is equivalent to a gap between the front cover 4 and the top surface 111, the fixing portion 312 of the diaphragm 31 is disposed in the gap and can be fixed to the top surface 111 by gluing with glue, so that the diaphragm 31 does not directly contact with the front cover 4, when the frame 1 or the front cover 4 is squeezed by an external force, the pressure is directly transmitted between the frame 1 and the front cover 4 and is not transmitted to the diaphragm 31, therefore, the diaphragm 31 is not deformed by the squeezing of the front cover 4, and the acoustic performance of the sound generating device 100 is more stable. Preferably, the raised portion 12 is disposed near the outer edge of the top surface 111, and a side of the top surface 111 near the inner edge is used for supporting and fixing the diaphragm 31.

The number of the protruding portions 12 may be multiple, and the protruding portions 12 are spaced from each other so as not to occupy the area of the top surface 111 too much, so that the diaphragm 31 and the top surface 111 have enough adhesive surfaces, and the stability of fixing the diaphragm 31 and the frame 1 is ensured.

In this embodiment, the lateral wall 11 of the basin frame 1 includes a plurality of and consecutive end to end, every the top surface 111 of the lateral wall 11 all is provided with at least one long-strip-shaped protruding portion 12, and this is long-strip-shaped the protruding portion 12 is located the intermediate position of the lateral wall 11, correspondingly, the fixed part 312 of the vibrating diaphragm 31 corresponds the position of the protruding portion 12 is provided with the breach 313 of the protruding portion 12 of dodging.

The basin stand 1 may further include a positioning column 13 extending from the top surface 111 toward a direction close to the front cover 4, the front cover 4 is provided with a positioning hole 41 penetrating through the front cover and matching with the positioning column 13, and the positioning column 13 is sleeved with the positioning hole 41. This structure allows the sound device 100 to be assembled with improved productivity and structural stability. Preferably, the diaphragm 31 correspondingly forms an avoiding portion 314 for avoiding the positioning post 13.

It should be understood that the protruding portion 12 on the frame 1 is not limited to the above-mentioned arrangement, and the design that can support the front cover 4 to avoid the direct contact between the front cover 4 and the vibrating diaphragm 31 is within the protection scope of the present invention.

As a further improvement of the above embodiment, referring to fig. 5, a plurality of the protruding portions 12 are connected end to form an annular structure, that is, a circle of the protruding portions 12 is disposed on a side of the top surface 111 of the sidewall 11 close to the outer edge, and with this structure, the fixing portion 312 of the diaphragm 31 does not need to be provided with a notch to avoid the protruding portions 12.

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, is fixed in including basin frame, support the vibrating diaphragm of basin frame and cover connect in the basin frame is located the vibrating diaphragm is kept away from the protecgulum of basin frame one side, the basin frame is including enclosing into accommodating space's lateral wall, the lateral wall is fixed including the support the top surface of vibrating diaphragm, a serial communication port, the basin frame still includes certainly the top surface of lateral wall is to being close to the bellying that the protecgulum direction extends the formation, the bellying is relative the height more than or equal to of top surface the thickness of vibrating diaphragm, the protecgulum cover connect in the top of bellying, the vibrating diaphragm set up in the top surface with between the protecgulum.

2. The sounder device according to claim 1, wherein the raised portion is disposed proximate an outer edge of the top surface.

3. The sound production device as claimed in claim 1 or 2, wherein the number of the protrusions is plural, and the plural protrusions are spaced from each other.

4. The sounder device according to claim 3, wherein the side walls comprise a plurality of and are sequentially connected end to end, and a top surface of each side wall is provided with at least one of the protrusions.

5. The sounding device according to claim 4, wherein the diaphragm includes a body portion and a fixing portion extending from an outer edge of the body portion and fixed to the frame, a height of the protrusion portion relative to the top surface is greater than or equal to a thickness of the fixing portion, the fixing portion is disposed between the top surface and the front cover, and a position of the fixing portion corresponding to the protrusion portion is provided with a notch for avoiding the protrusion portion.

6. The sounder device according to claim 5, wherein the boss is elongated and is located at a middle position of the side wall.

7. The sound production device as claimed in claim 1, wherein the side wall comprises a plurality of protrusions which are sequentially connected end to end, the top surface of each side wall is provided with one protrusion, and the plurality of protrusions are connected end to form an annular structure.

8. The sounding device according to claim 7, wherein the diaphragm includes a body portion and a fixing portion extending from an outer edge of the body portion and fixed to the frame, a height of the protrusion portion relative to the top surface is greater than or equal to a thickness of the fixing portion, and the fixing portion is disposed between the top surface and the front cover.

9. The sounding device according to claim 1, wherein the frame further comprises a positioning post extending from the top surface toward the front cover, the front cover has a positioning hole formed therethrough for engaging with the positioning post, and the positioning hole is disposed on the positioning post.

10. The sounding device according to claim 9, wherein the diaphragm correspondingly forms an avoiding portion for avoiding the positioning post.