CN109413562A - Processing method, front cover and the sounding device of front cover - Google Patents
Processing method, front cover and the sounding device of front cover Download PDFInfo
- Publication number
- CN109413562A CN109413562A CN201811653526.4A CN201811653526A CN109413562A CN 109413562 A CN109413562 A CN 109413562A CN 201811653526 A CN201811653526 A CN 201811653526A CN 109413562 A CN109413562 A CN 109413562A
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- Prior art keywords
- sheet metal
- flange
- front cover
- processing method
- edge
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention discloses processing method, front cover and the sounding device of a kind of front cover, the processing method of front cover is the following steps are included: be bent to form flange for the outer edge of sheet metal, sheet metal has upper and lower surfaces, and the flange is formed in the side where the lower surface；The flange is suppressed from the face upward direction on surface of following table, so that the width of the flange horizontally becomes larger and stacks and collectively form the edge part of the sheet metal with the sheet metal；Sheet metal is punched out to form out acoustic aperture.Technical solution of the present invention can more preferably realize thickening for the edge thickness of front cover.
Description
Technical field
The present invention relates to sound energy switch technology field, in particular to a kind of processing method of front cover, front cover and sounding device.
Background technique
In general, the front cover and vibrating diaphragm in sounding device are adhesively fixed by bonding agent, in order to guarantee front cover and
The firm bonding of vibrating diaphragm, therefore more jelly can be coated on front cover.However if jelly is more, in the process that front cover and shell press
In, it is easy to produce excessive glue phenomenon, the jelly overflowed from the inside of front cover and shell stitching surface can drop onto the ring portion of vibrating diaphragm,
And cling vibrating diaphragm ring portion part, to influence the vibration performance of vibrating diaphragm, lead to the generation of noise.Therefore in order to avoid spilling
Jelly drops onto the ring portion of vibrating diaphragm, usually can process a stage portion in the lower surface of front cover, i.e., add the edge part of front cover
Thickness, so that be in be arranged in a staggered manner between the edge part and central part of front cover, when the jelly on edge part is more and is squeezed by rear shell,
Extra jelly can flow to central part along the medial surface of edge part.
To realize that edge part is thicker with respect to central part, one block of thicker plate is usually used, by central part tension-thining,
But since central part is for edge part, the large percentage of shared front cover (account for the 90% of entire front cover area with
On), it means that need thinned area larger, and for proof strength, the biggish metal plate of hardness is usually used in front cover
Material molding, be so unfavorable for its be stretched it is thinned so that edge part it is opposite for central part to thicken size smaller, i.e., both mistake
Open it is unobvious, it is poor to the drainage of jelly.
Summary of the invention
The main object of the present invention is the processing method for proposing a kind of front cover, it is intended to the more preferable edge thickness for realizing front cover
Thicken.
To achieve the above object, the processing method of front cover proposed by the present invention, comprising the following steps:
The outer edge of sheet metal is bent to form flange, sheet metal has upper and lower surfaces, the flange shape
Side where lower surface described in Cheng Yu；
The flange is suppressed from the face upward direction on surface of following table, so that the width of the flange horizontally becomes
Edge part that is big and stacking and collectively form the sheet metal with the sheet metal；
Sheet metal is punched out to form out acoustic aperture.
Optionally, the flange is specifically included from the following table the step of direction on surface is suppressed that face upward:
Locating piece is set on the sheet metal, and the locating piece is located at the inside of the flange；
The flange is suppressed from the face upward direction on surface of following table, so that by suppressing the deformed flange
Inside abut the locating piece, and the flange and the sheet metal stack and constitute the edge part of the sheet metal.
Optionally, the flange is passed through by the outer edge of the sheet metal and is once bent to form, the bending of the flange
Angle is 90 °.
Optionally, after the step of outer edge of sheet metal being bent to form flange, further includes:
By the top of the flange towards being bent to form edge department on the outside of the sheet metal.
Optionally, before the step of outer edge of sheet metal being bent to form flange, further includes:
The sheet metal is stretched to form convex closure towards the direction far from the flange, so that the sheet metal is outside
Inwardly sequentially form the hierarchic structure being made of the edge part, interconnecting piece and the convex closure；
Described the step of being punched out to sheet metal to form out acoustic aperture, specifically includes:
Punching forms the acoustic aperture out on the convex closure.
Optionally, the thickness of the convex closure and the interconnecting piece is all larger than or is equal to 0.15mm, the thickness of the edge part
More than or equal to 0.3mm.
Optionally, it is described by the flange from following table face upward the direction on surface suppressed the step of after further include:
The edge part is punched out to form location hole.
Optionally, it is described by the flange from following table face upward the direction on surface suppressed the step of after further include:
The edge part is cut.
The present invention also proposes a kind of front cover, and the front cover is as obtained by the processing method of front cover as described above.
The present invention also proposes that a kind of sounding device, sounding device include: shell, front cover and vibrational system, the vibration system
System includes vibrating diaphragm, and the edge of the vibrating diaphragm is fixed between the shell and the edge part of the front cover, and the front cover is as above
The front cover.
In the present invention, by that will be used to make the sheet metal of front cover, its outer edge is bent to form flange, then by flange
It back suppresses to thicken the outer peripheral thickness of sheet metal, forms the edge part of front cover with this, this kind of mode can use
Relatively thin sheet metal only increases the thickness at sheet metal smaller area, without to sheet metal large area
Thickness carry out stretch be thinned, the difficulty of processing of sheet metal can be greatly reduced, therefore the molding of front cover can be facilitated.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the flow diagram of one embodiment of processing method of front cover of the present invention；
Fig. 2 is the refinement flow diagram of step S20 in Fig. 1；
Fig. 3 be the present invention in sheet metal the embodiment after end is cut structural schematic diagram；
Fig. 4 is that sheet metal is stretching the structural schematic diagram after forming convex closure in Fig. 3；
Fig. 5 is that sheet metal is bent to form the structural schematic diagram after flange and edge department in Fig. 4；
Fig. 6 is the cut-away illustration of sheet metal in Fig. 5；
Fig. 7 is structural schematic diagram of the sheet metal after flange back pressure is formed edge part in Fig. 6；
Fig. 8 is structural schematic diagram of the sheet metal after punching forms out acoustic aperture in Fig. 7；
Fig. 9 is structural schematic diagram of the sheet metal after punching forms location hole in Fig. 8；
Figure 10 is the structural schematic diagram of sounding device of the present invention；
Figure 11 is the cut-away illustration of sounding device in Figure 10；
Figure 12 is the enlarged drawing in Figure 11 at A.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The processing method that the present invention proposes a kind of front cover.
In the embodiment of the present invention, as shown in Figure 1, the processing method of front cover includes:
The outer edge of sheet metal is bent to form flange by step S10, and sheet metal has upper and lower surfaces, institute
State the side that flange is formed in where the lower surface.
In the step, by bending the outer edge of sheet metal towards side, so that it forms a circle 135 (such as Fig. 6 of flange
It is shown).Optionally, the flange 135 is by the outer edge of the sheet metal by being once bent to form, i.e., sheet metal is outer
Edge is only bent once, so when subsequent step needs flange 135 returning pier, be more advantageous to flange 135 and sheet metal it
Between return pier must stack.Optionally, the bending angle of the flange 135 is 90 °, if the outer edge of sheet metal is bent over
90 ° of formation flange 135, then since bending angle is excessive, so that molding difficulty increases；If the outer edge bending by sheet metal is small
In 90 ° of formation flange 135, then since bending angle is too small, it is unfavorable for flange 135 and returns pier to being superimposed with sheet metal to increase gold
Belong to the outer peripheral thickness of plate, therefore the outer edge 90-degree bent of sheet metal formation flange 135 be can be avoided into the above problem
It generates.Certainly, the bending angle of flange 135 can be also other angles, and flange 135 can also be passed through by the outer edge of sheet metal
Repeatedly bending is crossed to be formed.
Due to the sheet metal be for forming front cover, can also be according to the size of front cover therefore before forming flange 135
Sheet metal is cut.In addition, sheet metal can be used stainless steel, brass or SPCC (as with cold rolled carbon steel sheet and steel
Band) etc. materials.
In addition, the upper and lower surfaces of sheet metal are oppositely arranged, also, the lower surface of sheet metal refers to
Towards the surface of vibrating diaphragm.
Step S20 suppresses the flange from the face upward direction on surface of following table, so that the flange is horizontally
Width become larger and stacked with the sheet metal and collectively form the edge part of the sheet metal.
In the step, after sheet metal is bent to form flange 135, then by the back pier of flange 135, being equivalent to first will be golden
Belong to the edge bending of plate, then by the flange 135 of bending toward back pressure, the width of flange 135 horizontally then becomes larger, and returns pier
The thickness of position in the up-down direction increases, i.e., so that the thickness of edge part 131 (as shown in Figure 7) is greater than at other positions for example
The thickness of central part, and the peripheral dimension of sheet metal reduces.In the present embodiment, the metal plate of 0.15mm thickness may be selected
Material, then after being shaped to front cover, the thickness of central part is constant, is 0.15mm, and it is 0.3mm that the thickness of edge part 131, which thickeies,.Certainly,
The thickness of sheet metal can be selected as needed, such as the size greater than 0.15mm may be selected.
Step S30 is punched out sheet metal to form out acoustic aperture.
In the step, two can be usually stamped out on sheet metal, and acoustic aperture 1331 (as shown in Figure 8) certainly can also out
Punching press one as needed goes out acoustic aperture 1331, so that sheet metal is annular in shape.It should be noted that step S30 and other steps
Cooperation sequence without limitation, can be before step S10, certainly, and step S30 can also be after step S20, it is also possible that step
Rapid S30 can be after step slo and before step S20.In general, step S30 is after step S20, due to by front cover
After 131 compression moulding of edge part, the global shape of front cover determines substantially, does not need the techniques such as to be squeezed or stretched again, at this time
Acoustic aperture 1331 is stamped out again, can be avoided out acoustic aperture 1331 when front cover such as is for example stretched, squeezed at the moulding process and is deformed.
In the present invention, by that will be used to make the sheet metal of front cover, its outer edge is bent to form flange 135, then will
Flange 135 is back suppressed to thicken the outer peripheral thickness of sheet metal, and the edge part 131 of front cover, this kind of side are formed with this
Formula can use relatively thin sheet metal, only increase the thickness at sheet metal smaller area, without to metal plate
The thickness of material large area carry out stretch be thinned, the difficulty of processing of sheet metal can be greatly reduced, thus can facilitate front cover at
Type.
As shown in Fig. 2, in one embodiment, by the flange from following table face upward the direction on surface suppressed the step of
It specifically includes:
Step S21, is arranged locating piece on the sheet metal, and the locating piece is located at the inside of the flange；
Step S22 suppresses the flange from the face upward direction on surface of following table, so that deformed by suppressing
The inside of the flange abuts the locating piece, and the flange and the sheet metal stack and constitute the sheet metal
Edge part.
In the step, sheet metal is placed in mold and is formed, and is arranged in the position of corresponding 135 inside of flange
Locating piece, so when back suppressing flange 135, locating piece can abut the inside of flange 135, and flange 135 is prevented to be forced through
Interior overflow in journey and cause the inside of edge part 131 not neat and then lead to that vibration vibration of membrane is caused to block.In the embodiment, flange
135 inside refers to the surface that the side for being directed toward lower surface along the upper surface of sheet metal upwardly extends.
Referring again to Fig. 1, in one embodiment, after the step of outer edge of sheet metal is bent to form flange,
Further include:
Step S40, by the top of the flange towards being bent to form edge department on the outside of the sheet metal.
In the step, after the outer edge of sheet metal is bent to form flange 135, then to top (the i.e. flange of flange 135
135 free end) towards the outside (direction i.e. where outer edge) of sheet metal it is bent to form edge department 134 (as shown in Figure 6),
The edge department 134 is laterally protruding outwardly for flange 135 and sheet metal, so by flange 135 back
After pressure, the edge department 134 in the outside of flange 135 is capable of increasing the transverse width of finally formed edge part 131, increases front cover
With the abutting fixed-area of vibrating diaphragm, better fixed effect is realized.The presence of the edge department 134, after flange 135 can be made to suppress
Transverse width do not need the bonding plane width for being accurate to front cover edge part 131, the pressed transverse width of flange 135 can be small
Bonding plane width in front cover edge part 131 supplies the pressed transverse width of flange 135 by edge department 134, so than straight
It connects for flange 135 is suppressed sufficiently wide bonding plane, technique is simpler, it is easy to accomplish.
In one embodiment, before the step of outer edge of sheet metal being bent to form flange, further includes:
The sheet metal is stretched to form convex closure, so that the metal by step S50 towards the direction far from the flange
Plate sequentially forms the hierarchic structure being made of the edge part, interconnecting piece and the convex closure from the outside to the core；
Described the step of being punched out to sheet metal to form out acoustic aperture, specifically includes:
Punching forms the acoustic aperture out on the convex closure.
It in the step, is stretched through the intermediate region to sheet metal, so that forming a convex closure 133 (such as at this
Shown in Fig. 4), convex closure 133 be front cover central part, be so equivalent to increase between the central part of front cover and vibrating diaphragm away from
From increasing the oscillation space of vibrating diaphragm, conducive to the free vibration of vibrating diaphragm.In addition, edge part 131, interconnecting piece 132 and described convex
Packet 133 constitutes multistage hierarchic structure, and convex closure 133 and edge part 131 are distinguished convex in the opposite direction for interconnecting piece 132
Out, convex closure 133 is used to avoid the middle part of vibrating diaphragm, and interconnecting piece is used to avoid the ring portion of vibrating diaphragm.In the present embodiment, turned over towards separate
The direction on side 135, which stretches, refers to that the direction that upper surface is directed toward towards the lower surface of sheet metal stretches.
In one embodiment, it is described by the flange from following table face upward the direction on surface suppressed the step of after also
Include:
Step S60 is punched out to form location hole the edge part.
Location hole 1312 (as shown in Figure 9) is rushed again later by processing edge part 131, can prevent location hole 1312 from becoming
Shape.Location hole can be positioned with the positioning column on other components and be plugged together, and be positioned to other components.In general, in sheet metal
Four corners one location hole 1312 is respectively set.In the present embodiment, step S60 is before step S30.Certainly, step S60
It can be after step S30.
In one embodiment, it is described by the flange from following table face upward the direction on surface suppressed the step of after also
Include:
Step S70 cuts the edge part.
In the step, essence is carried out to edge part and is cut, so that the outer dimension of sheet metal meets front cover, is made therefrom
Front cover.It should be noted that step S70 can be after step S60, it can also be before step S60.
In one embodiment, the thickness of convex closure 133 and interconnecting piece 132 is all larger than or is equal to 0.15mm, the thickness of edge part 131
Degree is greater than or equal to 0.3mm.In the embodiment, it is equivalent to the sheet metal for selecting 0.15mm, after machine-shaping front cover, due to
The thickness of convex closure 133 and interconnecting piece 132 be it is constant, remain as 0.15mm, and the thickness of edge part 131 is due to being superimposed flange
135 thickness, therefore be 0.3mm.In addition, the sheet metal of the other sizes such as 0.2mm, 0.25mm also can be selected, edge part 131
Thickness is generally divided into twice of the thickness of the sheet metal before processing.
Incorporated by reference to reference Fig. 4 to Fig. 9, Fig. 4 to Fig. 9 respectively illustrates the molding in each forming process of front cover of the present invention
State is cut as shown in figure 3, first carrying out end to sheet metal.As shown in figure 4, stretching to form convex closure 133 to sheet metal, that is, exist
After carrying out step S50, sheet metal is in state shown in Fig. 4.As shown in Figure 5 and Figure 6, step S10 is executed to sheet metal
With step S40, the outer edge of sheet metal is bent to form flange 135, by the top of flange 135 towards the outside of sheet metal
It is bent to form edge department 134.As shown in fig. 7, executing step S20 to sheet metal, the flange 135 is faced upward table from following table
The direction in face is suppressed so that the width of the flange 135 horizontally become larger and with the sheet metal stack and it is common
Constitute the edge part 131 of the sheet metal.As shown in figure 8, executing step S30 to sheet metal, rushed on the convex closure 133
Hole forms out acoustic aperture 1331.As shown in figure 9, executing step S60 to sheet metal, the edge part 131 is punched out with shape
At location hole 1312.Finally, executing step S70 to sheet metal, the edge part 131 is cut.
Incorporated by reference to 11 and Figure 12 is referred to, the present invention also proposes a kind of front cover 13, the front cover 13 by front cover above-mentioned processing
Obtained by method.Front cover 13 includes from interior central part sequentially connected outwardly, interconnecting piece 132 and edge part 131, interconnecting piece 132
It is arranged around central part, edge part 131 is arranged around interconnecting piece 132, and encircles for central part opposing connections 132 towards side
It rises and forms the convex closure 133 connecting with interconnecting piece 132, towards the direction far from central part for 131 opposing connections 132 of edge part
Protrusion is so that the thickness of edge part 131 is greater than the thickness of interconnecting piece 132, equipped with acoustic aperture 1331 is gone out on central part, at edge
Portion 131 is equipped with location hole 1312.
Referring to Figure 10, the present invention also proposes a kind of sounding device 10, the sounding device 10 can for loudspeaker monomer,
The terminal electronic devices such as loudspeaker mould group or earphone, mobile phone, computer.Sounding device 10 includes: shell 11, front cover 13 and vibration
System, the shell 11 and the front cover 13 are in conjunction with the accommodating space for forming the fixed vibrational system of receiving, the front cover 13
Specific structure please refer to above-described embodiment, details are not described herein again.
Vibrational system includes vibrating diaphragm 12, and vibrating diaphragm 12 includes middle part 121, ring portion 122 and fixed part 123, ring portion 122
It is looped around the periphery of middle part 121, fixed part 123 is looped around the periphery in ring portion 122, which constitutes vibrating diaphragm 12
Edge, fixed part 123 are held between the edge part 131 of front cover 13 and shell 11, and the edge part of fixed part 123 and front cover 13
131 are bonded by jelly, and fixed part 123 is adhesively fixed with shell 11 by jelly.
In the present embodiment, edge part 131 has towards the lower surface of shell 11 1311, and interconnecting piece 132 has towards shell
11 upper surface 1321, lower surface 1311 are 12 ring portion 122 of vibrating diaphragm and fixed part between upper surface 1321 and shell 11
123 junction more leans on inner setting, is so equivalent to ring for the junction of lower surface 1311 and upper surface 1321
Portion 122 and the junction of fixed part 123 are that corresponding upper surface 1321 is arranged, the upper surface 1321 relative to lower surface 1311 and
Speech is arranged farther away from vibrating diaphragm 12, so avoids and cause to block to the vibration of vibrating diaphragm 12.In addition, when front cover 13 and rear shell it
Between jelly or front cover 13 and vibrating diaphragm 12 between jelly it is more when, extra jelly can be along the inside of lower surface 1311
Edge flows to upper surface 1321, and the form that lower surface 1311 and upper surface 1321 are staggered is conducive to that jelly is guided to flow from lower surface 1311
To upper surface 1321, extra jelly is avoided to be deposited in the junction of the upper surface 1321 of lower surface 1311 and jelly is caused to be bonded
The phenomenon that vibrating diaphragm 12.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of processing method of front cover, which comprises the following steps:
The outer edge of sheet metal is bent to form flange, sheet metal has upper and lower surfaces, and the flange is formed in
Side where the lower surface；
The flange is suppressed from the face upward direction on surface of following table, so that the width of the flange horizontally becomes larger simultaneously
The edge part of the sheet metal is stacked and collectively formed with the sheet metal；
Sheet metal is punched out to form out acoustic aperture.
2. the processing method of front cover as described in claim 1, which is characterized in that the flange faces upward surface from following table
The step of direction is suppressed specifically includes:
Locating piece is set on the sheet metal, and the locating piece is located at the inside of the flange；
The flange is suppressed from the face upward direction on surface of following table, so that by suppressing the interior of the deformed flange
Side abuts the locating piece, and the flange and the sheet metal stack and constitute the edge part of the sheet metal.
3. the processing method of front cover as described in claim 1, which is characterized in that the flange by the sheet metal outside
For edge by being once bent to form, the bending angle of the flange is 90 °.
4. the processing method of front cover as described in claim 1, which is characterized in that be bent to form the outer edge of sheet metal and turn over
After the step of side, further includes:
By the top of the flange towards being bent to form edge department on the outside of the sheet metal.
5. the processing method of the front cover as described in Claims 1-4 any one, which is characterized in that by the outside of sheet metal
Edge was bent to form before the step of flange, further includes:
The sheet metal is stretched to form convex closure towards the direction far from the flange, so that the sheet metal is from the outside to the core
Sequentially form the hierarchic structure being made of the edge part, interconnecting piece and the convex closure；
Described the step of being punched out to sheet metal to form out acoustic aperture, specifically includes:
Punching forms the acoustic aperture out on the convex closure.
6. the processing method of front cover as claimed in claim 5, which is characterized in that the thickness of the convex closure and the interconnecting piece is equal
More than or equal to 0.15mm, the thickness of the edge part is greater than or equal to 0.3mm.
7. the processing method of front cover as described in claim 1, which is characterized in that described that the flange faces upward table from following table
After the step of direction in face is suppressed further include:
The edge part is punched out to form location hole.
8. the processing method of front cover as described in claim 1, which is characterized in that described that the flange faces upward table from following table
After the step of direction in face is suppressed further include:
The edge part is cut.
9. a kind of front cover, which is characterized in that the processing method institute of front cover front cover as described in claim 1-8 any one
It is made.
10. a kind of sounding device characterized by comprising shell, front cover and vibrational system, the vibrational system include vibrating diaphragm,
The edge of the vibrating diaphragm is fixed between the shell and the edge part of the front cover, and the front cover is as claimed in claim 9
Front cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653526.4A CN109413562B (en) | 2018-12-29 | 2018-12-29 | Machining method of front cover, front cover and sound production device |
| PCT/CN2019/089452 WO2020133911A1 (en) | 2018-12-29 | 2019-05-31 | Processing method for front cover, front cover, and sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653526.4A CN109413562B (en) | 2018-12-29 | 2018-12-29 | Machining method of front cover, front cover and sound production device |
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| Publication Number | Publication Date |
|---|---|
| CN109413562A true CN109413562A (en) | 2019-03-01 |
| CN109413562B CN109413562B (en) | 2021-08-27 |
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| CN201811653526.4A Active CN109413562B (en) | 2018-12-29 | 2018-12-29 | Machining method of front cover, front cover and sound production device |
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| WO (1) | WO2020133911A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572755A (en) * | 2019-09-06 | 2019-12-13 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| CN110602585A (en) * | 2019-09-18 | 2019-12-20 | 深圳嘉信源科技实业有限公司 | Processing equipment and process for earphone decorative earmuffs |
| CN110719551A (en) * | 2019-08-20 | 2020-01-21 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| WO2020133911A1 (en) * | 2018-12-29 | 2020-07-02 | 歌尔股份有限公司 | Processing method for front cover, front cover, and sound production device |
| CN113500141A (en) * | 2021-07-16 | 2021-10-15 | 深圳市鹏福创新科技有限公司 | High-light-transmission light and thin cover plate and production process thereof |
| CN113600665A (en) * | 2021-07-12 | 2021-11-05 | 苏州春秋电子科技股份有限公司 | Method for forming narrow steps of notebook shell |
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| WO2020133911A1 (en) * | 2018-12-29 | 2020-07-02 | 歌尔股份有限公司 | Processing method for front cover, front cover, and sound production device |
| CN110719551A (en) * | 2019-08-20 | 2020-01-21 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110719551B (en) * | 2019-08-20 | 2021-11-26 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| CN110572755A (en) * | 2019-09-06 | 2019-12-13 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| CN110572755B (en) * | 2019-09-06 | 2021-11-26 | 歌尔科技有限公司 | Acoustic device and electronic apparatus |
| CN110602585A (en) * | 2019-09-18 | 2019-12-20 | 深圳嘉信源科技实业有限公司 | Processing equipment and process for earphone decorative earmuffs |
| CN113600665A (en) * | 2021-07-12 | 2021-11-05 | 苏州春秋电子科技股份有限公司 | Method for forming narrow steps of notebook shell |
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| CN113500141B (en) * | 2021-07-16 | 2023-06-23 | 深圳市鹏福创新科技有限公司 | High-light-transmission light and thin cover plate and production process thereof |
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| Publication number | Publication date |
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| CN109413562B (en) | 2021-08-27 |
| WO2020133911A1 (en) | 2020-07-02 |
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