CN107277719A - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN107277719A CN107277719A CN201710637271.1A CN201710637271A CN107277719A CN 107277719 A CN107277719 A CN 107277719A CN 201710637271 A CN201710637271 A CN 201710637271A CN 107277719 A CN107277719 A CN 107277719A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- loudspeaker
- becket
- voice coil
- top dome
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- 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
- H04R31/006—Interconnection of transducer parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
Abstract
A kind of loudspeaker, with vibrational system and magnetic circuit system, vibrational system includes vibrating diaphragm component and voice coil loudspeaker voice coil, and magnetic circuit system includes magnet steel and magnetic conductive board, and vibrating diaphragm component includes silica gel vibrating diaphragm and top dome；Top dome is embedded in vibrating diaphragm by insert injection moulding mode, and the ring outer ledge of vibrating diaphragm, which stretches downwards, forms vibrating diaphragm side wall；Also include becket, the top of becket is wrapped on the outside of ring and in the wall of vibrating diaphragm side by insert injection moulding.The gluing and assembly process in operation process can be reduced, it is to avoid disconnected glue when appearing in painting water-proof adhesive in operation so that the problem of water-proof function is lacked, ensure loudspeaker monomer and its with air-tightness and water resistance between bracket shell to be mounted.
Description
Technical field
Used the present invention relates to a kind of loudspeaker, more particularly to one kind in the intelligent movable equipment such as mobile phone, tablet personal computer
Microspeaker.
Background technology
In the intelligent movable equipment such as mobile phone, flat board, loudspeaker is widely used, with intelligent movable equipment
Development, it has to loudspeaker in terms of voice and musical qualities, reliability, weight, size more carrys out higher requirement.
The existing Microspeaker used in the intelligent movable equipment such as mobile phone, mainly including vibrational system, magnetic circuit system
Unite and house and support vibrational system and the frame and protecgulum of magnetic circuit system.Vibrational system includes vibrating diaphragm and drives the vibrating diaphragm
The voice coil loudspeaker voice coil of vibration, voice coil loudspeaker voice coil is attached thereto in the side of vibrating diaphragm, and top dome is provided with above vibrating diaphragm.Magnetic circuit system mainly includes magnet steel and patch
Invest the magnetic conductive board on magnet steel surface etc..Class is disclosed in patent CN201520257565.8 and patent CN201310659401.3
As loudspeaker, its Patent CN201520257565.8 more clearly discloses existing single body construction for loudspeaker, patent
CN201310659401.3 then discloses loudspeaker monomer and is installed to the interior formation loudspeaker module of housing and raises in more detail
The technical scheme that sound device module is used cooperatively with terminal electronic product.
Top dome during fabrication, is bonded on vibrating diaphragm by above-mentioned loudspeaker using glue, and is bonded in voice coil loudspeaker voice coil using glue
Vibrating diaphragm lower section that is, inside loudspeakers, then vibrating diaphragm and rigid protecgulum are bonded together by glue, then protecgulum is passed through
Glue is fixed in frame.Clamped on the outside of the ring of vibrating diaphragm by protecgulum and frame, thus vibrating diaphragm and the ball being bonded on vibrating diaphragm
Top and voice coil loudspeaker voice coil are able to fix support by protecgulum and frame.The part of magnetic circuit system then by bonding or the mode such as clamping directly or
Connect and accommodated and supported by frame.
Existing loudspeaker waterproofing design, mainly between vibrating diaphragm and top dome, vibrating diaphragm and protecgulum, and protecgulum and installation
Painting water-proof adhesive between the bracket shell of loudspeaker monomer, ensures loudspeaker housing back cavity during in water-bed or wet gas environments
Air-tightness, to meet water-proof function.Main process is that painting water-proof adhesive is be bonded with top dome into vibrating diaphragm component on vibrating diaphragm, in protecgulum
Upper painting water-proof adhesive is be bonded with vibrating diaphragm component into protecgulum vibrating diaphragm component, and protecgulum vibrating diaphragm component and frame, magnetic circuit etc. are assembled into and raised one's voice
Device monomer, is coated with a border marine glue, then loudspeaker monomer is assemblied on bracket shell in the installation corresponding surface of bracket shell.
Whole operation process gluing and assembly process are more, and the painting water-proof adhesive in operation, sometimes have the appearance of disconnected glue, as long as having
There is disconnected glue in any one, can cause water-proof function to lack.
Patent CN201520527568.9 it is also proposed existing speaker seal complex procedures and there is sealing property not
Good the problem of, its solve the problems, such as the technical measures that poor sealing taken be by protecgulum be set to ebonite and flexible glue double-shot moulding into
Type integrative-structure, using flexible glue part as seal, reduces a procedure.But be not fully solved vibrating diaphragm and top dome,
Between vibrating diaphragm and protecgulum, and whole sealing problems between the bracket shell of protecgulum and installation loudspeaker monomer.Increase simultaneously
Flexible glue part, adds cost, more increases loudspeaker general thickness, it is necessary to which more installing spaces, weaken it in knot
Space advantage in terms of structure size.
The content of the invention
In view of situation above, the present invention proposes a kind of gluing and assembly process that can be reduced in operation process, it is to avoid go out
In present operation during painting water-proof adhesive disconnected glue so that the problem of water-proof function is lacked, ensure loudspeaker monomer and its with to be installed
Bracket shell between air-tightness and water resistance loudspeaker.
According to the loudspeaker of the present invention, with vibrational system and magnetic circuit system, vibrational system includes vibrating diaphragm component and voice coil loudspeaker voice coil,
Magnetic circuit system includes magnet steel and magnetic conductive board, and vibrating diaphragm component includes silica gel vibrating diaphragm and top dome；Top dome is embedded in by insert injection moulding mode
In vibrating diaphragm, the ring outer ledge of vibrating diaphragm, which stretches downwards, forms vibrating diaphragm side wall；Also include becket, the top of becket passes through embedding
Part injection is wrapped on the outside of ring and in the wall of vibrating diaphragm side.
Preferably, the ring outer side covers are on the upper surface at the top of becket, and vibrating diaphragm side wall is covered in metal
On lateral surface at the top of ring.On the outside of the becket and ring formed by insert injection moulding journey is firmly combined between the wall of vibrating diaphragm side
Degree, it is ensured that be wrapped in the top of becket on the outside of ring with vibrating diaphragm side wall, constitutes closed waterproof layer.
Preferably, the ring outer side covers are on the upper surface and medial surface at the top of becket, and vibrating diaphragm side wall covers
Cover on the lateral surface at the top of becket.In order to further enhance the combination jail on the outside of becket and ring between the wall of vibrating diaphragm side
Gu degree, can be by setting the side such as downwardly convex or downward annular wall close to the ring outside of becket medial surface
Formula, makes ring outside while being covered on the upper surface and medial surface at the top of becket, further ensures that on the outside of ring and vibrating diaphragm
Side wall is firmly wrapped in the top of becket, constitutes closed waterproof layer.
Preferably, the ring middle inside of the vibrating diaphragm is provided with vibrating diaphragm perforate, and the top dome includes top dome body and setting
In the top dome fixed part of top dome body perimeter, the top dome body is embedded in the vibrating diaphragm perforate, the top dome fixed position in
Lower section on the inside of ring.
Further, the upper end face of the voice coil loudspeaker voice coil passes through the gluing downside surface for being fixed on the top dome fixed part.
Further, vibrating diaphragm side wall is on the outside of ring.
Preferably, the adjacent side between the part of the becket and magnetic circuit system is connected with each other solid by laser welding
It is fixed.
According to the loudspeaker of the present invention, manufacture method is, by top dome and becket inserts, is placed in silica gel mould
In；Silica gel is poured into a mould, shaping obtains vibrating diaphragm, while top dome and becket are molded with silica film all-in-one, obtain the one of subsidiary becket
The vibrating diaphragm component of body structure；The part of the vibrating diaphragm component of the integral structure of subsidiary becket and magnetic circuit system is assembled into and raised
Sound device monomer.
The present invention also proposes a kind of mobile phone, and it includes loudspeaker described above.
Preferably, loudspeaker described above is arranged in loudspeaker support housing set in mobile phone, top dome and is shaken
Be located on the inside of the ring portion of film, ring and on the outside of ring at the opening of the bracket shell, vibrating diaphragm side wall be located at becket and
Between the fitting surface of the bracket shell.
Preferably, the corresponding surface that loudspeaker is installed in the bracket shell is coated with a border marine glue.
After technology proposed by the present invention is taken, technique according to the invention scheme, with following beneficial effect：
1) vibrating diaphragm uses pellosil, silica gel have than conventional composite membrane or mylar films it is preferably restorative, by water,
After air pressure deformation, when conventional environment is replied, it can preferably recover original planform, be more beneficial for waterproof demand.
2) material of vibrating diaphragm is pellosil, is molded in vibrating diaphragm, makes between vibrating diaphragm pellosil and top dome using top dome is embedded
There are stronger bonding fastness and air-tightness, it is ensured that the water resistance between vibrating diaphragm and top dome.
3) embedded using becket, with the injection molding manner of vibrating diaphragm side of sidewall portion position silica gel outsourcing on the outside of the ring of vibrating diaphragm so that
There is a pellosil parcel border at the top of becket, strengthen loudspeaker monomer and its it is airtight between bracket shell to be mounted
Property.
4) loudspeaker monomer finished product has the vibrating diaphragm of injection formed when being assemblied on bracket shell, between becket and bracket shell
Layer of silica gel buffering, enhancing becket and bracket shell fitting surface rigid surface between air-tightness, it is ensured that vibrating diaphragm and metal
Water resistance between ring.
5) corresponding surface that loudspeaker is installed in bracket shell is coated with a border marine glue, sets multiple waterproof construction, can enter
One step strengthens water resistance.
6) gluing and assembly process in operation process are significantly reduced, can at utmost avoid applying waterproof in operation
Occur disconnected glue during glue, prevent water-proof function from lacking.
7) reliable lasting sealing can need not can be realized equipped with protecgulum to reach waterproof demand, and therefore reduces thickness
Size, when loudspeaker monomer is assemblied in housing, there is the advantage of height space.On the other hand, without protecgulum, cavity is conducive to
Acoustical behavior.
Brief description of the drawings
Fig. 1 shows the loudspeaker perspective exploded view of the present invention；
Fig. 2 shows the three-dimensional half-section diagram of the loudspeaker of the present invention；
Fig. 3 shows that the combining structure of the diaphragm of loudspeaker component and voice coil loudspeaker voice coil, becket and upper conduction magnetic board of the present invention is cutd open
Face schematic diagram；
Fig. 4 shows the loudspeaker FPC scheme of installation of the present invention.
Embodiment
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.Described embodiment bag
Include and help the various details that understand, but they can only be counted as exemplary, be a part of embodiment of the present invention, and
The embodiment being not all of.Meanwhile, in order that specification is more clear succinct, it will omit pair it is well known that function and construction
It is described in detail.
Unless otherwise defined, technical term or scientific terminology used herein should be in art of the present invention and had
The ordinary meaning that the personage of general technical ability is understood." on ", " under " described herein or " top ", " lower section " are to raise one's voice
Relative upper and lower relation for laying state when the vibrating diaphragm component 10 of device is above, that is, illustrations substantially show
Upper and lower relation.When the laying state of loudspeaker changes, such as when overturning loudspeaker, corresponding position relationship also should be with
Conversion to understand or implement the technical scheme of the application.
As depicted in figs. 1 and 2, a kind of loudspeaker, including loudspeaker monomer and the flexible circuitry that is connected with loudspeaker monomer
Plate 50 (FPC), the loudspeaker monomer has vibrational system and magnetic circuit system.
The voice coil loudspeaker voice coil 20 that vibrational system includes vibrating diaphragm component 10 and drives the vibrating diaphragm component 10 to vibrate, voice coil loudspeaker voice coil 20 is in vibrating diaphragm group
The side of part 10 is connected.Vibrating diaphragm component 10 includes vibrating diaphragm 11 and top dome 12, and vibrating diaphragm 11 is pellosil, and top dome 12 is by embedding
The vibrating diaphragm component 10 of integral structure is formed in part injection molding manner insertion vibrating diaphragm 11, voice coil loudspeaker voice coil 20 is fixed on the surface of top dome 12.
Vibrating diaphragm 11 has 112 on the outside of ring portion 110 and the ring being attached thereto inner side 111 and ring, and 112 edges are downward on the outside of ring
Stretching, extension forms vibrating diaphragm side wall 114, and vibrating diaphragm side wall 114 is located at the side that vibrating diaphragm 11 is connected with voice coil loudspeaker voice coil 20.
Magnetic circuit system includes magnet steel 30 and is attached at the magnetic conductive board 40 of the upper surface of magnet steel 30, and the outside of magnet steel 30 is provided with outer steel
31, magnet steel 30 is located at the middle part of outer steel 31, and outer steel 31 includes the outer steel of some splits be easy to manufacture and assembled
Monomer.The top of outer steel 31 is provided with upper conduction magnetic board 42, and the lower section of magnet steel 30 and outer steel 31 is provided with lower magnetic conductive board 41.
As shown in Figure 1, Figure 2 and Figure 3, becket 60, the top of becket 60 are provided between vibrational system and magnetic circuit system
Portion is fixed in the receiving space that ring outside 112 and vibrating diaphragm side wall 114 are collectively formed by insert injection moulding, the top of becket 60
Portion surface is wrapped in ring outside 112 and vibrating diaphragm side wall 114, and upper conduction magnetic board 42 is arranged on the inner side of becket 60, upper magnetic conduction
It is connected with each other between the lateral surface of plate 42 and the medial surface of the bottom of becket 60 by laser welding.
As shown in Figure 1 and Figure 4, FPC 50 is provided with loudspeaker connecting portion 51, and loudspeaker connecting portion 51 passes through laser
It is fixedly welded on upper conduction magnetic board 42, the coil lead of voice coil loudspeaker voice coil 20 is welded to connect with the loudspeaker connecting portion 51.Flexible circuitry
Plate 50 by loudspeaker connecting portion 51 to the feed-in electric signal of voice coil loudspeaker voice coil 20, to make current flow through voice coil loudspeaker voice coil 20.Phase on FPC 50
Pad or terminal mouthful, mobile phone, flat board for being applied with loudspeaker etc. are provided with for the other end for setting loudspeaker connecting portion 51
Speaker interface connection on Intelligent mobile equipment mainboard.
Magnet steel 30 and the surrounding of outer steel 31 formation magnetic field, and pass through 41 pairs of magnetic conductive board 40, upper conduction magnetic board 42 and lower magnetic conductive board
Magnetic field is optimized, and described at least part of voice coil loudspeaker voice coil 20 is suspended between magnet steel 30 and outer steel 31, and voice coil loudspeaker voice coil 20 is led to when in use
Enter electric current so as to the forced vibration in magnetic field, and drive the vibration sounding of vibrating diaphragm component 10.
In the present embodiment, top dome 12 is as inserts, and be placed in silica gel mould turns into silica film all-in-one injection
The vibrating diaphragm component 10 of one globality, makes have stronger bonding fastness between vibrating diaphragm 11 and top dome 12, solves in the prior art
The viscosity being bonded using glue caused by vibrating diaphragm 11 and top dome 12 is weaker, it is difficult to meet the requirement of mobile phone speaker higher reliability
Problem.
It is appreciated that forming integral structure in the insertion vibrating diaphragm 11 of top dome 12, it can also take in some cases other
Mode, for example with mechanical trip mosaic texture, can also solve directly to adopt shaking for the Silicon moulds material that fastens with glue
The bad problem of reliability caused by the top dome 12 of film 11 and metal material, but this mode may be brought in physical dimension
Increase and to manufacture assembling propose higher requirement.Comparatively, top dome 12 is embedded in vibrating diaphragm 11 in insert injection moulding mode,
For preferably scheme.
The loudspeaker detail and technique effect of present embodiment is detailed further below.
As shown in Figures 2 and 3,111 middle parts are provided with vibrating diaphragm perforate 113 on the inside of the ring of vibrating diaphragm 11, and the top dome 12 includes
Top dome body 120 and the top dome fixed part 121 for being arranged on the periphery of top dome body 120, the top dome body 120 are embedded in vibrating diaphragm perforate
In 113, top dome fixed part 121 is fixed on the inside of ring 111 lower section.
111 middle parts set vibrating diaphragm perforate 113 on the inside of the ring of vibrating diaphragm 11, form pellosil hollow structure, are easy to top dome
12 insertion vibrating diaphragms 11 in, and the injection moulding and attaching of top dome fixed part 121 on the inside of ring 111 lower surface, further enhance embedding
The intensity and firmness of conjunction.On the other hand, vibrating diaphragm 11 is hollow, mould filling top dome 12, and the pellosil weight that can mitigate is about
30%, under the conditions of equal driving force, loudspeaker can obtain higher sensitivity；For from flow chart, mould filling
Top dome 12 can reduce one of top dome 12 and the bonding process of vibrating diaphragm 11, saved on man-hour, cost of labor can decrease.
The thickness of the top dome fixed part 121 is less than the thickness of the top dome body 120.
The thickness of top dome body 120 can determine according to the thickness of speaker performance design, top dome fixed part 121
Thickness is set smaller than the thickness of top dome body 120, is easy to form gradient-structure, makes the relative protrusion of top dome body 120 with firm
In ground insertion vibrating diaphragm 11.In some cases, as a kind of possibility, the thickness that both can also be set same is directly fixed
In the inside of vibrating diaphragm 11, but certain encapsulated height is may require that to ensure that top dome 12 is firmly embedded into vibrating diaphragm 11, eventually shadow
General thickness is rung, causes loudspeaker whole height slightly higher.
Voice coil loudspeaker voice coil 20 is fixed on the surface of top dome 12, and specific method is that the upper end face of voice coil loudspeaker voice coil 20 is passed through into gluing fixation
In the downside surface of top dome fixed part 121.
It is combined into it is appreciated that can also be embedded in voice coil loudspeaker voice coil 20 in vibrating diaphragm 11 by insert injection moulding mode with vibrating diaphragm component 10
One, excellent effect consistent in vibrating diaphragm 11 is embedded in by insert injection moulding mode by obtaining with foregoing top dome 12.But from most
Good implementation result considers that voice coil loudspeaker voice coil 20 can be adhered to by glue to be easier on the surface of top dome 12 of attachment bonding, because top dome 12
For metal material, general to use aluminum to be many, in contrast easier than silica gel material to paste, adhesive strength is high, adhesive effect
It can be maintained.And voice coil loudspeaker voice coil 20 is arranged on inside loudspeakers, the influence without extraneous steam, therefore glue bonding side can be passed through
Formula is fixed on vibrating diaphragm component 10.Relative be embedded in voice coil loudspeaker voice coil 20 in vibrating diaphragm 11 by insert injection moulding mode is combined with vibrating diaphragm component 10
It is integrated, the complexity of insert injection moulding will be reduced, reduce cost, and it is reliable also to can guarantee that voice coil loudspeaker voice coil 20 is connected with top dome 12
Property.
Top dome fixed part 121 is fixed on the inside of ring 111 lower section, is easy to voice coil loudspeaker voice coil 20 to be fixed by the gluing top dome that is fixed on
The downside surface in portion 121.It is using the underlying surfaces of top dome 12 Nian Jie by applying glue with voice coil loudspeaker voice coil 20, it is to avoid vibrating diaphragm 11 and voice coil loudspeaker voice coil 20
Viscosity weak hidden danger when being directly bonded.
For being fixedly connected of top dome 12 and vibrating diaphragm 11, top dome fixed part 121 can also be fixed on the top of vibrating diaphragm 11,
That is the outside of loudspeaker, can equally realize being fixedly connected for top dome 12 and vibrating diaphragm 11.But this situation can cause voice coil loudspeaker voice coil 20
Top dome 20 that can not be directly with metal material is be bonded, if can have sticky weak hidden danger again if directly Nian Jie with vibrating diaphragm 11.
Under this situation, then need to consider voice coil loudspeaker voice coil 20 being embedded in vibrating diaphragm 11 by insert injection moulding mode to be combined as a whole with vibrating diaphragm component,
Or take other combinations.It is appreciated that relative in the insertion vibrating diaphragm 11 of top dome 12, voice coil loudspeaker voice coil 20 is bonded in top dome 12
For the lower surface of top dome fixed part 121, other combinations may bring structure or technologic complexity, and cause
The increase of loadspeaker structure size and cost.
The bonding site of voice coil loudspeaker voice coil 20 and top dome fixed part 121 is located at 111 lower section, vibrating diaphragm 11, ball on the inside of the ring of vibrating diaphragm 11
Top fixed part 121 and voice coil loudspeaker voice coil 20 are sequentially connected from the top down.Vibrating diaphragm 11 and top dome 12 form integral knot by embedded injection molding manner
Structure, voice coil loudspeaker voice coil 20 is directly fixedly connected with top dome 12, compared with the prior art for, lacked pellosil between top dome 12 and voice coil loudspeaker voice coil 20,
It can so reduce by a silica gel film thickness in height, can be by this space to be preserved to oscillation space, after loudspeaker monomer
It is continuous be assembled into housing or the electronic product such as mobile phone in when there is space advantage.
The top of becket 60 is wrapped in ring outside 112 and vibrating diaphragm side wall 114 by insert injection moulding, specifically,
112 are covered on the upper surface at the top of becket 60 on the outside of ring, and vibrating diaphragm side wall 114 is covered in the outer of the top of becket 60
On side.On the outside of the becket 60 and ring formed by insert injection moulding journey is firmly combined between 112 and vibrating diaphragm side wall 114
Degree, it is ensured that ring outside 112 and vibrating diaphragm side wall 114 are wrapped in the top of becket 60, constitute closed waterproof layer.Can be with
Understand, degree is firmly combined between 112 and vibrating diaphragm side wall 114 on the outside of becket 60 and ring to further enhance, can be with
By setting the modes such as downwardly convex or downward annular wall at 112 on the outside of the ring close to the medial surface of becket 60, make folding
112 are covered on the upper surface and medial surface at the top of becket 60 simultaneously on the outside of ring, further ensure that ring outside 112 and vibrating diaphragm
Side wall 114 is firmly wrapped in the top of becket 60, constitutes closed waterproof layer.
When the downward stretching, extension in 112 edges forms vibrating diaphragm side wall 114 on the outside of ring, vibrating diaphragm side wall 114 is on the outside of ring
112, becket 60 can be made to keep relatively succinct and be easy to the structure installed.It is appreciated that other angles can also be taken
Or the situation that surface texture is specifically faced with tackling, such as form acute angle between taking 112 on the outside of vibrating diaphragm side wall 114 and ring
Angle, and make the surface of becket 60 for corrugated, ring outside 112 or vibrating diaphragm side wall 114 and becket when being correspondingly molded
The surface texture of 60 contacts can also be changed into the ripple struction on corrugated and the embedded surface of becket 60, although can add inserts
The complexity of injection mold and technique, but when the larger becket for causing to take of loadspeaker structure is heavier, it is ensured that two
The bonding strength and firmness of person.
For in terms of the water resistance, because the material of vibrating diaphragm 11 is pellosil, silica gel is than conventional composite membrane or mylar
Film after by water, air pressure deformation, when conventional environment is replied, can preferably recover original structure with preferably restorative
Shape, is more beneficial for waterproof demand.Top dome 12 is embedded to be molded in vibrating diaphragm 11, make composition vibrating diaphragm 11 pellosil and top dome 12 it
Between have stronger bonding fastness and air-tightness, it is ensured that the water resistance between vibrating diaphragm 11 and top dome 12.It is embedded using becket 60,
The ring outside 112 of vibrating diaphragm 11 and the injection molding manner of the position silica gel outsourcing of vibrating diaphragm side wall 114 so that the border at the top of becket 60
Have a pellosil parcel, strengthen loudspeaker monomer and its air-tightness between bracket shell to be mounted.
Connection between becket 60 and vibrating diaphragm 11 and upper conduction magnetic board 42, is connected to vibrational system and magnetic circuit system, and by
Becket 60 assume responsibility for the support to vibrational system and magnetic circuit system.
Other parts of magnetic circuit system, the lower surface of upper conduction magnetic board 42 and the upper surface of outer steel 31, and outer steel 31
Pass through with lower magnetic conductive board 41, lower magnetic conductive board 41 with the surface that correspondence is contacted between magnet steel 30 and magnet steel 30 and magnetic conductive board 40 gluing
It is connected with each other.
It is embedded using becket 60, the ring outside 112 of vibrating diaphragm 11 and the injection molding manner of the silica gel outsourcing of vibrating diaphragm side wall 114,
Make becket 60 is embedded to be molded in the silica gel of vibrating diaphragm 11, realize that becket 60 is integrated with the diaphragm of vibrating diaphragm 11.It can omit
Frame and protecgulum, the support function to vibrational system and magnetic circuit system are undertaken by succinct becket 60, not by plastics frame
Deformation or burr influence.And diaphragm and frame without being bonded vibrating diaphragm 11 using glue as prior art, reduce group
Process is filled, man-hour is shortened, and avoids glue from pasting corresponding assembly failure generation, packaging efficiency and yields is improved.
Connected, bonded compared to conventional glue using Laser Welding between becket 60 and upper conduction magnetic board 42, firm welding is big,
Reliability strengthens, and without the hardening time of glue, evades the product accumulation problem in assembling process, reduces assembly tool fixture number
Amount, improves packaging efficiency.
Adjacent side between becket 60 and upper conduction magnetic board 42 is connected with each other by laser welding, upper conduction magnetic board 42 with it is outer
Pass through glue between magnet steel 31, outer steel 31 and lower magnetic conductive board 41, lower magnetic conductive board 41 and magnet steel 30 and magnet steel 30 and magnetic conductive board 40
It is viscous to be connected with each other, construct the loudspeaker monomer a being fully sealed inner space.For loudspeaker monomer, vibrational system is led to
Becket 60 is crossed to be able to be supported on the lower magnetic conductive board 41 of magnetic circuit system, other parts of magnetic circuit system be also fixed connection and
Support.Main moving component is vibrating diaphragm component 10, due to passing through insert injection moulding phase between vibrating diaphragm component 10 and becket 60
Mutually fix, and becket 60 is interfixed with upper conduction magnetic board 42 by laser welding, and vibrating diaphragm component 10 obtains firm support,
Its vibrations does not result in the deformation of support member or the separation of connecting portion yet.
As for gluing connection is used between other parts of magnetic circuit system, because several portions are passed through in the vibrations of vibrating diaphragm component 10
The transmission of part has been disperseed and weakened, and will not separate hidden danger to the connect band between associated components.Meanwhile, these parts
Inside loudspeakers are arranged on, the influence without extraneous steam also without higher waterproof requirement, therefore can be bonded by glue
Mode interfixes.
Only with regard to becket 60 and vibrating diaphragm 11 be connected or relative positioning for, it would however also be possible to employ the adhesive such as glue connects
Connect fixation.But in vibrating diaphragm 11 using in the case of pellosil, if Silicon moulds are be bonded using glue with becket 60, it is sticky compared with
It is weak, although relative positioning can be realized, but reliability is not high, has separation hidden danger during the vibrations of loudspeaker sounding, it is difficult
To meet the requirement of mobile phone speaker higher reliability.And in sealing and structural strength for, glue bonding can not meet
Demand is, it is necessary to which other supplementary structure just can guarantee that sealing and structural strength, it is impossible to omit traditional frame or protecgulum.
Loudspeaker connecting portion 51 includes copper foil layer, PI film layers and strengthens steel plate layer, copper foil layer, PI film layers and reinforcement steel plate layer
Between it is gluing successively be fixedly connected, strengthen steel plate layer be weldingly fixed on upper conduction magnetic board 42, as shown in Figure 4.The coil of voice coil loudspeaker voice coil 20
For multiturn copper cash, the coil lead of voice coil loudspeaker voice coil 20 is welded to connect with the loudspeaker connecting portion 51, can use direct or indirect two
The mode of kind.
The coil lead of voice coil loudspeaker voice coil 20 is directly welded to connect with the loudspeaker connecting portion 51, and method is by the two of multiturn copper cash
Root lead respectively be fixed on the copper foil layer of loudspeaker connecting portion 51 by spot welding.
Copper foil layer on the loudspeaker connecting portion 51 of FPC 50 is fixed in spot welding to two leads of voice coil loudspeaker voice coil 20 respectively
For correspondence contact, Microspeaker compared with prior art, the stainless steel pad as middle transition is eliminated, was reduced
Link and welding sequence are crossed, material and welding process is saved, manufacturing cost has been saved, material and man-hour are advantageous.Simultaneously
Because the reduction of process, and the complicated pad solder technique of opposed configuration is eliminated, reduce rosin joint solder skip, scruff foreign matter and fall
The problems such as enter'sing loudspeaker air-vent odds, reliability is improved, and reduces the bad hidden dangers such as open circuit.Loudspeaker is connected
Copper foil layer, PI film layers and the mutual gluing insulation of steel plate layer of strengthening in portion 51, it is to avoid form short circuit with the conducting of upper conduction magnetic board 42.
The coil lead of voice coil loudspeaker voice coil 20 is welded to connect with the loudspeaker connecting portion 51 indirectly, and method is by the coil of voice coil loudspeaker voice coil 20
Two lead ends of lead are connected with the mutually isolated split Member Welding of upper conduction magnetic board 42 respectively, and pass through corresponding upper conduction magnetic board
42 split components contact corresponding with the copper foil layer of loudspeaker connecting portion 51 is welded to connect.In this case, in order to avoid entirety
Property upper conduction magnetic board plate 42 cause coil lead short circuit, upper conduction magnetic board 42 is set to mutually isolated Split type structure.
It is described to be welded by the corresponding split component of upper conduction magnetic board 42 contact corresponding with the copper foil layer of loudspeaker connecting portion 51
Connect, two lead ends of coil lead of voice coil loudspeaker voice coil 20 can be first weldingly fixed on upper conduction magnetic board 42 in succession, then along upper conduction magnetic board
To loudspeaker connecting portion 51, nearby rear contact corresponding with the copper foil layer of loudspeaker connecting portion 51 is welded to connect for 42 arrangements；Or sound
Two lead ends of coil lead of circle 20 are first weldingly fixed on upper conduction magnetic board 42, pass through connection near loudspeaker connecting portion 51
The contact corresponding with the copper foil layer of loudspeaker connecting portion 51 of upper conduction magnetic board 42 is welded to connect by lead, is consequently formed the line of voice coil loudspeaker voice coil 20
Enclose the contact connection corresponding with the copper foil layer of loudspeaker connecting portion 51 indirectly of two lead ends of lead.
The coil lead of voice coil loudspeaker voice coil 20 is welded on upper conduction magnetic board 42, and passes through upper conduction magnetic board 42 and loudspeaker connecting portion 51
Copper foil layer is welded to connect, and is easy to the coil lead of voice coil loudspeaker voice coil 20 to weld nearby on nigh upper conduction magnetic board 42, it is not necessary to raising one's voice
Guided inside device.But relative to by two leads of voice coil loudspeaker voice coil 20, pair of copper foil layer on loudspeaker connecting portion 51 is fixed in spot welding respectively
Contact is answered, technique is slightly cumbersome, but in the design of some voice coil structures, the line that voice coil loudspeaker voice coil 20 is guided in inside loudspeakers can be prevented effectively from
Enclose lead or other guide structures or conduction/fixed structure are set.Although this welding manner also needs to a few step welding sequences,
But pad is also omit, the manufacture assembling link of pad is eliminated, saves process time and cost.
For further optimization structure and the purpose of packaging technology, the upper surface of upper conduction magnetic board 42 is provided with some inner fovea parts,
Loudspeaker connecting portion 51 is welded to connect in the inner fovea part with upper conduction magnetic board 42, on the one hand contributes to form adaptation outer steel 31
The magnetic conductive board of layout, while also avoiding loudspeaker connecting portion 51 from being superimposed upon on upper conduction magnetic board 42 and add the overall thickness of loudspeaker
Spend (height).The lower section of becket 60 is provided with some indent bit-avoiding slots, and the indent bit-avoiding slot is mainly used in technique and keeps away position, for example
When FPC 50 (FPC) is drawn outside loudspeaker monomer at upper conduction magnetic board 42, position is drawn to FPC and carries out keeping away position；Or
Connect material strip to the positioning of the upper conduction magnetic board 42 in production technology and carry out technique and keep away position etc..
The loudspeaker production method of present embodiment is described below.
Using top dome 12 and becket 60 as inserts, it is placed in silica gel mould；Silica gel is poured into a mould, shaping obtains vibrating diaphragm
11, while top dome 12 and becket 60 and silica film all-in-one injection molding, the integral structure for obtaining subsidiary becket 60 shakes
Membrane module 10.
The top dome 12 being fixed as one in the vibrating diaphragm component 10 of the integral structure of subsidiary becket 60 with vibrating diaphragm 11
Surface injection glue, it is be bonded with voice coil loudspeaker voice coil 20, form vibrational system.
Loudspeaker connecting portion 51 is fixed on upper conduction magnetic board 42 by laser welding, the coil lead of voice coil loudspeaker voice coil 20 is with raising one's voice
Device connecting portion 51 is welded to connect.
It will be connected with each other, shaken by laser welding between the lateral surface of upper conduction magnetic board 42 and the medial surface of the bottom of becket 60
Dynamic system is assembled into loudspeaker with magnetic circuit system.
Description uses the manufacture method of the Intelligent mobile equipments such as mobile phone, the flat board of above-mentioned loudspeaker below.
The loudspeaker is arranged in the loudspeaker support housing set by Intelligent mobile equipment, top dome 12 and vibrating diaphragm 11
Ring portion 110, on the inside of ring 111 and ring on the outside of 112 be located at the opening of the bracket shell, 114, vibrating diaphragm side wall
Between becket 60 and the assembling corresponding surface of the bracket shell.Relative to setting loudspeaker connecting portion on FPC 50
Pad or terminal mouthful that 51 other end is set, are connected with the speaker interface on Intelligent mobile equipment mainboard.
The corresponding surface that loudspeaker can be installed in the bracket shell in advance is coated with a border marine glue, many by setting
Weight waterproof construction, further enhances water resistance.
It should be noted that according to the loudspeaker of the present embodiment, during insert injection molding, top dome 12 and becket
60, as inserts and the Silicon moulds integrated injection molding for forming vibrating diaphragm 11, obtain an integrated structure.In order to more clear
Relation between each funtion part of Chu and the herein described loudspeaker of figurative expression, in the accompanying drawing 1 of the application, by gold
The signal that category ring 60 makees decomposing state with vibrating diaphragm 11 and top dome 12 is expressed.
According to the loudspeaker of above-described embodiment, it is made up of the pellosil of vibrating diaphragm 11 with the integrated structure design of top dome 12
Vibrating diaphragm component 10, vibrating diaphragm component 10 is combined with the bonding of voice coil loudspeaker voice coil 20, is applied to improve pellosil in Microspeaker with hardware
The problem of glue sticking viscosity is weak, it is to avoid loudspeaker vibrating diaphragm 11 and top dome 12, vibrating diaphragm 11 and voice coil loudspeaker voice coil 20 during sounding vibrations
Separate hidden danger.Vibrating diaphragm 11 and the glued process of the skeleton of voice coil loudspeaker voice coil 20 are reduced simultaneously, improve the stability of vibrational system.
According to the loudspeaker of above-described embodiment, compared with the prior art for, eliminate pad, pass through FPC 50
The laser welding of loudspeaker connecting portion 51 is fixed on upper conduction magnetic board 42, and coil lead and the loudspeaker connecting portion 51 of voice coil loudspeaker voice coil 20 are welded
Connection, reduces transitional link and welding sequence, saves material and welding process, saved manufacturing cost.
According to the loudspeaker of above-described embodiment, compared with the prior art for, eliminate protecgulum and frame, replaced using becket
For the frame of traditional Microspeaker, becket 60 assume responsibility for frame function of the prior art, and its compression strength is much
More than conventional plastics frame, product in actual use can be avoided to deform loudspeaker because of compression and then cause sounding abnormal sound
Hidden danger, improves the reliability of product.
Meanwhile, it is welded in the loudspeaker connecting portion 51 of FPC 50 (FPC) in the lead of the multiturn coil of voice coil loudspeaker voice coil 20
When upper, no frame frame interference does not interfere with the stroke space of welding equipment spot welding head, i.e., without particularly customized special small spot welding
Head, simplifies technique, also saves manufacturing cost.
According to the loudspeaker of above-described embodiment, it is molded by the way that top dome 12 is embedded in vibrating diaphragm 11, makes vibrating diaphragm 11 and top dome 12
Between have stronger bonding fastness and air-tightness and water resistance；And the becket 60 and folding formed by insert injection moulding
Combination on the outside of ring between 112 and vibrating diaphragm side wall 114, reaches that becket 60 is embedded in vibrating diaphragm component 10 and by silica gel outsourcing
Purpose, loudspeaker monomer finished product has the vibrating diaphragm 11 of injection formed when being assemblied on bracket shell between becket 60 and bracket shell
Layer of silica gel buffering, enhancing becket 60 and bracket shell fitting surface rigid surface between air-tightness and water resistance.With
Existing conventional water-proof loudspeaker is compared, and is significantly reduced gluing and assembly process in operation process, can at utmost be avoided
Occur disconnected glue during painting water-proof adhesive in operation, prevent water-proof function from lacking.This programme need not can be realized equipped with protecgulum and reliably held
Therefore long sealing reduces thickness to reach waterproof demand, when loudspeaker monomer is assemblied in housing, has height empty
Between advantage.On the other hand, without protecgulum, the acoustical behavior of cavity is conducive to.
Claims (10)
1. a kind of loudspeaker, with vibrational system and magnetic circuit system, vibrational system includes vibrating diaphragm component (10) and voice coil loudspeaker voice coil (20), magnetic
Road system includes magnet steel (30) and magnetic conductive board (40), it is characterised in that vibrating diaphragm component (10) includes silica gel vibrating diaphragm (11) and top dome
(12), top dome (12) is embedded in vibrating diaphragm (11) by insert injection moulding mode, and (112) edge is stretched downwards on the outside of the ring of vibrating diaphragm (11)
Spread is into vibrating diaphragm side wall (114)；Also include becket (60), the top of becket (60) is wrapped in outside ring by insert injection moulding
In side (112) and vibrating diaphragm side wall (114).
2. a kind of loudspeaker according to claim 1, it is characterised in that (112) are covered in becket on the outside of the ring
(60) on the upper surface at the top of, vibrating diaphragm side wall (114) is covered on the lateral surface at the top of becket (60).
3. a kind of loudspeaker according to claim 1, it is characterised in that (112) are covered in becket on the outside of the ring
(60) on the upper surface and medial surface at the top of, vibrating diaphragm side wall (114) is covered on the lateral surface at the top of becket (60).
4. a kind of loudspeaker according to Claims 2 or 3, it is characterised in that on the inside of the ring of the vibrating diaphragm (11) (111)
Middle part is provided with vibrating diaphragm perforate (113), and the top dome (12) includes top dome body (120) and is arranged on top dome body (120) periphery
Top dome fixed part (121), in the embedded vibrating diaphragm perforate (113) of the top dome body (120), the top dome fixed part
(121) it is located at the lower section of (111) on the inside of ring.
5. a kind of loudspeaker according to claim 4, it is characterised in that the upper end face of the voice coil loudspeaker voice coil (20) passes through gluing
It is fixed on the downside surface of the top dome fixed part (121).
6. a kind of loudspeaker according to claim 1, it is characterised in that vibrating diaphragm side wall (114) is outside ring
Side (112).
7. a kind of loudspeaker according to claim 1, it is characterised in that the becket (60) and the part of magnetic circuit system
Between adjacent side be interconnected and fixed by laser welding.
8. a kind of loudspeaker production method, it is characterised in that using top dome (12) and becket (60) as inserts, be placed in silica gel into
In pattern tool；Silica gel is poured into a mould, shaping obtains vibrating diaphragm (11), while top dome (12) and becket (60) are molded with silica film all-in-one,
Obtain the vibrating diaphragm component (10) of the integral structure of subsidiary becket (60)；By shaking for the integral structure of subsidiary becket (60)
The part of membrane module (10) and magnetic circuit system is assembled into loudspeaker.
9. a kind of mobile phone, it is characterised in that including the loudspeaker any one of claim 1 to 8.
10. a kind of mobile phone according to claim 9, it is characterised in that the loudspeaker is arranged on set by mobile phone
In loudspeaker support housing, on the outside of ring portion (110), ring inner side (111) and the ring of top dome (12) and vibrating diaphragm (11)
(112) at the opening of the bracket shell, vibrating diaphragm side wall (114) is located at the assembling of becket (60) and the bracket shell
Between corresponding surface, the corresponding surface that loudspeaker is installed in the bracket shell is coated with a border marine glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637271.1A CN107277719A (en) | 2017-07-28 | 2017-07-28 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637271.1A CN107277719A (en) | 2017-07-28 | 2017-07-28 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107277719A true CN107277719A (en) | 2017-10-20 |
Family
ID=60074487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710637271.1A Pending CN107277719A (en) | 2017-07-28 | 2017-07-28 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107277719A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348394A (en) * | 2018-10-26 | 2019-02-15 | 江西联创宏声电子股份有限公司 | Vibrating diaphragm component processing unit (plant) and processing method |
| CN109511079A (en) * | 2018-12-07 | 2019-03-22 | 歌尔股份有限公司 | Sounding device, for sounding device vibrating diaphragm component processing method |
| CN110418259A (en) * | 2018-04-27 | 2019-11-05 | 歌尔股份有限公司 | Sounding device monomer, sounding module and electric terminal |
| WO2020125171A1 (en) * | 2018-12-17 | 2020-06-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2020248194A1 (en) * | 2019-06-11 | 2020-12-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2021114152A1 (en) * | 2019-12-11 | 2021-06-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker vibrating member |
| WO2022126771A1 (en) * | 2020-12-16 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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| CN203968361U (en) * | 2014-06-12 | 2014-11-26 | 瑞声声学科技(深圳)有限公司 | Loud speaker |
| CN204291373U (en) * | 2014-12-23 | 2015-04-22 | 歌尔声学股份有限公司 | Microspeaker |
| CN205754831U (en) * | 2016-01-26 | 2016-11-30 | 瑞声光电科技(常州)有限公司 | Vibrational system and apply the speaker of described vibrational system |
| CN106954146A (en) * | 2017-05-16 | 2017-07-14 | 深圳精拓创新科技有限公司 | Silica gel vibrating diaphragm package assembly and preparation method for loudspeaker |
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| CN203968361U (en) * | 2014-06-12 | 2014-11-26 | 瑞声声学科技(深圳)有限公司 | Loud speaker |
| CN204291373U (en) * | 2014-12-23 | 2015-04-22 | 歌尔声学股份有限公司 | Microspeaker |
| CN205754831U (en) * | 2016-01-26 | 2016-11-30 | 瑞声光电科技(常州)有限公司 | Vibrational system and apply the speaker of described vibrational system |
| CN106954146A (en) * | 2017-05-16 | 2017-07-14 | 深圳精拓创新科技有限公司 | Silica gel vibrating diaphragm package assembly and preparation method for loudspeaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418259A (en) * | 2018-04-27 | 2019-11-05 | 歌尔股份有限公司 | Sounding device monomer, sounding module and electric terminal |
| CN109348394A (en) * | 2018-10-26 | 2019-02-15 | 江西联创宏声电子股份有限公司 | Vibrating diaphragm component processing unit (plant) and processing method |
| CN109511079A (en) * | 2018-12-07 | 2019-03-22 | 歌尔股份有限公司 | Sounding device, for sounding device vibrating diaphragm component processing method |
| WO2020125171A1 (en) * | 2018-12-17 | 2020-06-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2020248194A1 (en) * | 2019-06-11 | 2020-12-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2021114152A1 (en) * | 2019-12-11 | 2021-06-17 | 瑞声声学科技(深圳)有限公司 | Loudspeaker vibrating member |
| WO2022126771A1 (en) * | 2020-12-16 | 2022-06-23 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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