CN210016637U

CN210016637U - Mold for manufacturing vibrating diaphragm and vibrating diaphragm

Info

Publication number: CN210016637U
Application number: CN201920724541.7U
Authority: CN
Inventors: 梁平; 赵彬
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 mould for making vibrating diaphragm, it is used for making the vibrating diaphragm with the cooperation of gas explosion structure, the mould include towards the shaping face of gas explosion structure reaches certainly the shaping face is towards being close to many bulges of gas explosion structure direction are convex. The utility model also provides an adopt the vibrating diaphragm that above-mentioned mould preparation formed, the vibrating diaphragm be formed with protruding complementary structure mutually. The utility model discloses a mould for processing vibrating diaphragm has strengthened exhaust effect in the vibrating diaphragm course of working has improved the product acceptance rate of vibrating diaphragm adopts the vibrating diaphragm intensity that the mould preparation formed is higher, and vibration performance is good.

Description

Mold for manufacturing vibrating diaphragm and vibrating diaphragm

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric conversion field especially relates to a mould and vibrating diaphragm for making vibrating diaphragm.

[ background of the invention ]

With the advent of the mobile internet age, the number of smart mobile devices has been increasing, and speakers for playing sound are being used in large numbers in smart mobile devices of today. The loudspeaker comprises a vibrating diaphragm used for vibrating and sounding, the design of the vibrating diaphragm is directly related to the acoustic performance of the loudspeaker, and in actual production, the vibrating diaphragm is formed by pressing a mould.

In the related art, the mold includes a molding surface, and the structure of the molding surface is generally divided into two types: the molding surface is subjected to sand blasting or laser treatment, and the surface roughness of one side or two sides of the vibrating diaphragm is extremely large due to the design, so that the mucous membrane of the vibrating diaphragm is very serious, the demoulding is difficult, and the size is difficult to ensure; the shaping face is smooth structure, and this kind of design ventilation effect is very poor, can lead to vibrating diaphragm shaping effect not in place, and the size is very big with the design difference, and vibrating diaphragm structural strength is also poor. The two structures of the forming surface can cause the diaphragm actually produced to be far from the design in the production process, and the effect expected by the original design cannot be achieved.

Therefore, there is a need to provide a new mold for manufacturing a diaphragm and a diaphragm to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide an easy drawing of patterns to the vibrating diaphragm shaping is less with the design difference, and the great mould that is used for making the vibrating diaphragm of intensity and adopt its preparation vibrating diaphragm that forms.

The utility model provides a mould for making vibrating diaphragm, it is used for making the vibrating diaphragm with the cooperation of gas explosion structure, the mould include towards the shaping face of gas explosion structure reaches certainly the shaping face is towards being close to many bulges of gas explosion structure direction are convex.

Preferably, a plurality of the protrusions are arranged to intersect with each other on the molding surface.

Preferably, the forming surface is in smooth transition as a whole.

Preferably, the cross-sectional area of the protrusion gradually decreases towards the direction close to the gas explosion structure.

Preferably, the projection width of the bulge to the molding surface is 0-2 mm.

Preferably, the height of the protrusions is 0 to 100 μm.

Preferably, the mould is square, protruding including with many first archs that the long limit direction parallel interval of mould set up and with many second archs that the minor face direction parallel interval of mould set up, first arch with the protruding crossing arrangement of second.

Preferably, the distance between two adjacent first bulges on the molding surface is 0-5 mm; and the distance between every two adjacent second bulges on the forming surface is 0-5 mm.

Preferably, the shaping surface is including the top of the ball shaping surface that is located the intermediate position, the ring is located fold ring portion shaping surface and with fold ring portion shaping surface connection's fixed part shaping surface around the top of the ball shaping surface, wherein, top of the ball shaping surface with the fixed part shaping surface is the plane, fold ring portion shaping surface is to being close to the convex curved surface of gas explosion structure direction.

The utility model also provides a vibrating diaphragm adopts foretell mould preparation to form, be formed with on the vibrating diaphragm with protruding complementary structure mutually.

Compared with the prior art, the utility model provides a mould for processing vibrating diaphragm is through setting up convex arch, many on the profiled surface protruding cross arrangement has strengthened exhaust effect in the vibrating diaphragm course of working has improved the product acceptance rate of vibrating diaphragm adopts the vibrating diaphragm that the mould preparation formed corresponds bellied position forms the strengthening rib, has played the enhancement the effect of vibrating diaphragm intensity has guaranteed the vibration performance of vibrating diaphragm.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a mold and a gas explosion structure for manufacturing a diaphragm according to the present invention;

FIG. 2 is a front view of the mold shown in FIG. 1;

FIG. 3 is a cross-sectional view of the mold shown in FIG. 1 taken along line III-III;

fig. 4 is a schematic perspective view of a diaphragm according to the present invention;

FIG. 5 is a front view of the diaphragm shown in FIG. 4;

FIG. 6 is a cross-sectional view of the diaphragm shown in FIG. 4 taken along line VI-VI;

fig. 7 is a schematic perspective view of another diaphragm according to the present invention;

FIG. 8 is a cross-sectional view of the diaphragm of FIG. 7 taken along line VIII-VIII;

fig. 9 is a reference diagram of a use state of the mold for manufacturing a diaphragm according to the present invention.

[ 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.

Referring to fig. 1-3, the present invention provides a mold 100 for manufacturing a diaphragm and a diaphragm 200 manufactured by using the mold 100.

The mold 100 is used for manufacturing a diaphragm in cooperation with the gas explosion structure 300, and specifically, the mold 100 includes a molding surface 11 facing the gas explosion structure 300 and a plurality of protrusions 13 protruding from the molding surface 11 to a direction close to the gas explosion structure 300.

The forming surface 11 is in overall smooth transition and comprises a ball top forming surface 111 located in the middle, a folded ring portion forming surface 113 annularly arranged around the ball top forming surface 111 and a fixing portion forming surface 115 connected with the folded ring portion forming surface 113, wherein the ball top forming surface 111 and the fixing portion forming surface 115 are planes, the folded ring portion forming surface 113 is a curved surface protruding towards the direction close to the gas explosion structure 300, and a plurality of concave grooves 1130 are formed in the folded ring portion forming surface 113.

Further, the number of the protrusions 13 is multiple, and the multiple protrusions 13 are arranged on the molding surface 11 in a mutually crossing manner. Preferably, the cross-sectional area of the protrusion 13 gradually decreases towards the direction close to the gas explosion structure 300, the projection width of the protrusion 13 towards the molding surface 11 is 0-2mm, and the height of the protrusion 13 is 0-100 μm.

Further, the mold 100 is square, the protrusion 13 includes a plurality of first protrusions 131 arranged in parallel to the long side direction of the mold 100 at intervals and a plurality of second protrusions 133 arranged in parallel to the short side direction of the mold 100 at intervals, the first protrusions 131 and the second protrusions 133 are arranged in a crossing manner, it can be understood that the first protrusions 131 and the second protrusions 133 are perpendicular to each other, and the distance between two adjacent first protrusions 131 on the molding surface 11 is 0-5 mm; the distance between two adjacent second protrusions 133 on the molding surface 11 is 0-5 mm.

Referring to fig. 4-6, the diaphragm 200 includes a spherical top 210, a corrugated portion 220 and a fixing portion 230, the spherical top 210 corresponds to the spherical top molding surface 111, the corrugated portion 220 corresponds to the corrugated portion molding surface 113, and the fixing portion 230 corresponds to the fixing portion molding surface 115.

The position of the loop part 220 corresponding to the groove 1130 also forms a corrugation 2201, and the corrugation 2201 can strengthen the strength of the diaphragm 200 and improve the collapse phenomenon of the diaphragm 200 when falling.

Further, the diaphragm 200 includes an upper surface 201 and a lower surface 203 disposed opposite to the upper surface 201. The diaphragm 200 is formed with a structure complementary to the protrusion 13.

In this embodiment, the diaphragm 200 is formed with a rib 240 complementary to the protrusion 13, and the rib 240 protrudes from the lower surface 203 toward the upper surface 201. The reinforcing ribs 240 are in a convex state relative to the upper surface 201 and in a concave state relative to the lower surface 203, and the thickness of the reinforcing ribs 240 is approximately consistent with the thickness of the diaphragm 200 at other positions.

The number of the reinforcing ribs 240 is multiple, the plurality of reinforcing ribs 240 are mutually crossed, specifically, the reinforcing ribs 240 include a plurality of first reinforcing ribs 2401 arranged in parallel to the long side direction of the diaphragm 200 at intervals and a plurality of second reinforcing ribs 2403 arranged in parallel to the short side direction of the diaphragm 200 at intervals, the first reinforcing ribs 2401 and the second reinforcing ribs 2403 are crossed, and the distance between two adjacent first reinforcing ribs 2401 is 0-5 mm; the distance between two adjacent second reinforcing ribs 2403 is 0-5 mm.

Referring to fig. 7-8, in other embodiments, when the processing material for forming the diaphragm 200 is thick enough, the diaphragm 200 manufactured by the above mold has only a concave portion 250 formed on its lower surface 203 and complementary to the protrusion 13, and the concave portion 250 is concave from the lower surface 203 to the upper surface 201, and at this time, the upper surface 201 is in smooth transition. It is understood that the thickness of the diaphragm at the recess 250 is smaller than the thickness of the diaphragm at other positions.

Referring to fig. 9, the diaphragm 200 is formed by air-pressure air-blowing, in the processing process of the diaphragm 200, the processing material for manufacturing the diaphragm 200 is uniformly laid on the forming surface 11, and the air-blasting structure 300 performs air-blasting forming on the processing material to form the diaphragm 200. Due to the arrangement of the bulge 13, a small gap exists between the molding surface 11 and the processing material, a good exhaust effect is achieved, the poor molding of the diaphragm 200 caused by a large amount of residual gas in the mold is avoided, and the molding and design difference of the diaphragm 200 is small; moreover, the spacing distance of the plurality of bulges 13 is controlled in the mould, so that the bonding force between the diaphragm 200 and the mould is controlled in a reasonable range, the diaphragm is easy to release, and the dimensional stability of the diaphragm 200 is further ensured; in addition, the position of the diaphragm 200 corresponding to the protrusion 13 forms the reinforcing rib 240, which plays a role in reinforcing the strength of the diaphragm 200 and ensures the vibration performance of the diaphragm 200.

Compared with the prior art, the utility model provides a mould 100 for processing vibrating diaphragm is through setting up convex arch 13, many on shaping surface 11 protruding 13 cross arrangement has strengthened the exhaust effect in the vibrating diaphragm 200 course of working has improved the product acceptance rate of vibrating diaphragm 200 adopts the vibrating diaphragm 200 that mould 100 preparation formed corresponds protruding 13's position forms strengthening rib 240, has played the enhancement the effect of vibrating diaphragm 200 intensity has been guaranteed the vibration performance of vibrating diaphragm 200.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The mold is used for manufacturing the vibrating diaphragm and matched with an air explosion structure to manufacture the vibrating diaphragm, and is characterized by comprising a molding surface facing the air explosion structure and a plurality of bulges protruding from the molding surface to the direction close to the air explosion structure.

2. The mold of claim 1, wherein a plurality of said projections are disposed to intersect one another on said molding surface.

3. The mold of claim 1, wherein the molding surface is entirely smooth in transition.

4. The mold of claim 1, wherein the cross-sectional area of the protrusion decreases toward the gas explosion structure.

5. The mold according to claim 1, wherein the projection width of the protrusion to the molding surface is 0-2 mm.

6. The mold according to claim 1, wherein the height of the protrusions is 0-100 μm.

7. The mold according to claim 1, wherein the mold has a square shape, the protrusions include a plurality of first protrusions spaced in parallel with a long side direction of the mold and a plurality of second protrusions spaced in parallel with a short side direction of the mold, and the first protrusions and the second protrusions are arranged to intersect.

8. The mold according to claim 7, wherein the distance between two adjacent first protrusions on the molding surface is 0-5 mm; and the distance between every two adjacent second bulges on the forming surface is 0-5 mm.

9. The mold according to claim 1, wherein the molding surfaces comprise a top ball molding surface at a middle position, a corrugated ring molding surface surrounding the top ball molding surface, and a fixing portion molding surface connected to the corrugated ring molding surface, wherein the top ball molding surface and the fixing portion molding surface are flat surfaces, and the corrugated ring molding surface is a curved surface protruding toward a direction close to the gas explosion structure.

10. A diaphragm manufactured by using the mold according to any one of claims 1 to 9, wherein the diaphragm is formed with a structure complementary to the protrusion.