CN110062314A - Loudspeaker mould group and its manufacturing method - Google Patents
Loudspeaker mould group and its manufacturing method Download PDFInfo
- Publication number
- CN110062314A CN110062314A CN201910164167.4A CN201910164167A CN110062314A CN 110062314 A CN110062314 A CN 110062314A CN 201910164167 A CN201910164167 A CN 201910164167A CN 110062314 A CN110062314 A CN 110062314A
- Authority
- CN
- China
- Prior art keywords
- frame
- mould group
- circuit board
- flexible circuit
- clamp plate
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000004308 accommodation Effects 0.000 claims abstract description 11
- 230000010355 oscillation Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 36
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The present invention provides a kind of loudspeaker mould group and its manufacturing method, loudspeaker mould group includes the frame with accommodation space, the magnetic circuit system being contained in the frame and vibrational system, the vibrational system includes vibrating diaphragm and the voice coil for driving the diaphragm oscillations, the frame includes the side wall for surrounding accommodation space, the magnetic circuit system includes magnet steel and the upper clamp plate that is sticked on the magnet steel, the loudspeaker mould group further includes the flexible circuit board being electrically connected with the voice coil, and the upper clamp plate and the flexible circuit board integrated injection molding are in the frame.Loudspeaker mould group of the invention and its manufacturing method, can be with precise positioning, and effectively solves the fixation problem of upper clamp plate and flexible circuit board, prevents the reliability for falling and influencing product.
Description
Technical field
The present invention relates to electroacoustic conversion arts, more particularly to one kind to be used for loudspeaker mould group and its manufacturing method.
Background technique
With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is extremely various, one of them is just
It is the music function of high-quality, and the loudspeaker in mobile phone is one of the necessary condition for realizing this high-quality music function.
Loudspeaker mould group generally includes frame, upper cover, the vibrational system being housed in frame and driving vibrational system vibration
Magnetic circuit system, vibrational system generally includes vibrating diaphragm and drives the voice coil of vibrating diaphragm, and magnetic circuit system generally includes magnet steel and to be attached to
The upper clamp plate on magnet steel surface, it usually needs setting flexible circuit board realizes the electric connection of voice coil, flexible circuit board and upper clamp plate
Integrated injection molding is in frame, but the prior art is difficult to ensure precision and reliability in injection molding.
Therefore, it is really necessary to provide a kind of injection mold for assembling loudspeaker mould group and loudspeaker mould group to solve
State problem.
Summary of the invention
The present invention in order to solve the above technical problems, and a kind of loudspeaker mould group and its manufacturing method are provided, can be effective
Solve the problems, such as that prior art installation accuracy is not high and influences product reliability because falling.
To solve the above problems, the present invention provides a kind of loudspeaker mould group comprising frame, receiving with accommodation space
In magnetic circuit system and vibrational system in the frame, the vibrational system includes vibrating diaphragm and the sound for driving the diaphragm oscillations
Circle, the frame include the side wall for surrounding accommodation space, and the magnetic circuit system includes magnet steel and is sticked upper on the magnet steel
Clamping plate, the loudspeaker mould group further include the flexible circuit board being electrically connected with the voice coil, the upper clamp plate and the flexible electrical
Road plate integrated injection molding is in the frame.
Preferably, there are two the flexible circuit board is total to, the two sides of the voice coil are separately positioned on.
Preferably, the flexible circuit board include the inner ring being connected with the voice coil, it is outer with the frame integrated injection molding
Ring and the connection ring for connecting the inner ring and outer rings, the inner ring are fixedly connected with the voice coil.
Preferably, the side wall includes the upper surface close to the vibrating diaphragm, the lower surface far from the vibrating diaphragm and connection institute
The inward flange and outer edge of upper surface and the lower surface are stated, the flexible circuit board and the upper clamp plate are arranged in the side wall
Lower surface.
Preferably, the frame is long strip type structure, and two long axis edge directions of the frame, institute is arranged in the upper clamp plate
State the two short axle edge directions that the frame is arranged in flexible circuit board.
Preferably, the upper clamp plate includes that main part and the two sides from the main part bend the bending part extended, described
Bending part extends and inside integrated injection molding to the frame.
Preferably, the vibrating diaphragm includes the ring of centrally located top dome and the circular top dome, the flexible circuit board
A side surface far from the vibrating diaphragm is provided with to the second vibrating diaphragm being recessed far from the vibrating diaphragm direction.
To solve the above problems, this method includes following step the present invention also provides a kind of manufacturing method of loudspeaker mould group
It is rapid:
Step S1: providing frame injection mold, the first mould material and the second mould material, the first mould material include upper clamp plate and with
Even shelves, the second mould material include flexible circuit board and are connected with the flexible circuit board for the first injection molding that the upper clamp plate is connected
The second injection molding even shelves, the first mould material and the second mould material respectively there are two；
Step S2: the first mould material and the second mould material are respectively put into the frame injection mold, the basin
Be equipped with guide post used for positioning in frame injection mold, first injection molding even shelves and second injection molding be even respectively equipped on shelves with
The location hole of guide post cooperation realizes the first mould material, described the by the location hole and the guide post precise match
The accurate positioning of two mould material and the frame injection mold；
Step S3: molding, injection plastic material molding；
Step S4: frame semi-finished product are taken out in die sinking, and first injection molding even shelves and the second injection molding even shelves excision obtain
To frame；
Step S5: vibrational system and magnetic circuit system and the frame are assembled, the loudspeaker mould group is obtained.
It includes the basin with accommodation space that the present invention, which provides a kind of loudspeaker mould group and its manufacturing method, loudspeaker mould group,
Frame, the magnetic circuit system being contained in the frame and vibrational system, the vibrational system include vibrating diaphragm and the vibrating diaphragm are driven to shake
Dynamic voice coil, the frame include the side wall for surrounding accommodation space, and the magnetic circuit system includes magnet steel and is sticked in the magnet steel
On upper clamp plate, the loudspeaker mould group further includes the flexible circuit board being electrically connected with the voice coil, the upper clamp plate and described
Flexible circuit board integrated injection molding is in the frame.Loudspeaker mould group of the invention and its manufacturing method, can with precise positioning, and
The fixation problem for effectively solving upper clamp plate and flexible circuit board, prevents the reliability for falling and influencing product.
Detailed description of the invention
Fig. 1 is the schematic perspective view of loudspeaker mould group of the present invention；
Fig. 2 is cross-sectional view of the loudspeaker mould group of the present invention along line A-A shown in Fig. 1
Fig. 3 is the decomposition texture schematic diagram of loudspeaker mould group of the present invention；
Fig. 4 is the flow chart of the manufacturing method of loudspeaker mould group of the present invention；
Fig. 5 is the structural schematic diagram of the first mould material of loudspeaker mould group of the present invention；
Fig. 6 is the structural schematic diagram of the second mould material of loudspeaker mould group of the present invention.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 1 to Figure 3, the present invention provides a kind of injection mould group applied to loudspeaker mould group and pass through the note
Mold group realizes the loudspeaker mould group 100 of assembly.
The present invention also provides a kind of loudspeaker mould groups 100, including vibrational system 1, magnetic circuit system 2 and the fixed vibration system of receiving
The frame 3 of system 1 and magnetic circuit system 2.
Vibrational system 1 includes vibrating diaphragm 11 and the voice coil 12 for driving the vibration of vibrating diaphragm 11.Voice coil 12 is entwined by voice coil leads
's.Vibrating diaphragm 11 includes top dome 111, the ring 112 around top dome 111.In the present embodiment, top dome 111 and ring 112 are point
Body structure, top dome 111 are sticked at the top of ring 112, and the upper surface of voice coil 12 is connected to the bottom of ring 112.Certainly, can
In the other embodiments of selection, top dome 111 also be can be set in the bottom of ring, top dome 111 and ring 112 or one
Body structure, can be implemented.
Frame 3 includes the side wall 31 for surrounding accommodation space.Under side wall 31 includes upper surface 311, is opposite with upper surface 311
Surface, the inward flange 312 and outer edge 313 for connecting upper surface 311 and lower surface.Vibrating diaphragm 1 is sticked in the upper surface of side wall 31
311。
As shown in figure 3, loudspeaker mould group 100 of the invention further includes setting in 12 bottom of voice coil, for flexibly supporting vibration
Dynamic system and the flexible circuit board 4 for being electrically connected voice coil 12.In the present embodiment, flexible circuit board 4 is through the invention
Injection mold integrated injection molding is simultaneously suppressed.Flexible circuit board 4 includes the inner ring 41 and 3 integrated injection molding of frame of support voice coil 12
Outer ring 42 and connection inner ring 41 and outer ring 42 connection ring 43.Further, inner ring 41 is fixedly connected with voice coil 12.Specifically exist
In present embodiment, flexible circuit board 4 is separately positioned on the two sides of voice coil 12 there are two being total to.
Magnetic circuit system 2 includes magnet steel 21, the magnetic conduction sheet 22 being sticked on magnet steel 21 and accommodating magnet steel 21 and magnetic conduction sheet 22
Magnetic bowl 23.Magnet steel 21 is including centrally located main magnet steel 211 and around the secondary magnet steel 212 of main magnet steel 211.Magnetic conduction sheet 22 includes
It is attached to the pole piece 221 on 211 surface of main magnet steel and is attached to the upper clamp plate 222 on 212 surface of the secondary magnet steel.In this implementation
In mode, main magnet steel 211 is rectangle permanent magnet, is arranged in the center of magnetic bowl 23, secondary magnet steel 212 altogether there are two, to be located at
The strip magnet steel of main 211 two sides of magnet steel.Corresponding, upper clamp plate is separately positioned on the two sides of loudspeaker mould group there are two being total to.On
222 integrated injection molding of clamping plate is in frame 3.Specifically, upper clamp plate 222 includes main part 2221 and main body 2221 to two lateral bendings
The bending part 2222 extended is rolled over, bending part 2222 extends and inside integrated injection molding to frame 3.Specifically in the present embodiment, on
Clamping plate 222 is injection mold integrated injection molding through the invention and suppresses.Magnetic conduction sheet 22 is made of permeability magnetic material, is attached to
Magnetic field is converged, the magnetic induction performance of product is improved for playing the role of magnetic conduction in the surface of magnet steel 21.Specifically, magnetic bowl 23 includes
Bottom plate 231 and the side plate 232 extended from the bending of bottom plate 231.Magnetic gap is formed between main magnet steel 211 and secondary magnet steel 212.Voice coil 12
It is inserted into magnetic gap, during the energization the stress in magnetic gap, driving vibrating diaphragm 11 vibrates along the vertical direction.
In present embodiment, upper clamp plate 222 and flexible circuit board 4 are all made of injection mold integrated injection molding of the invention in basin
In frame, and it is arranged on the lower surface of side wall 31 of frame 3.In present embodiment, frame 3 is long strip type structure, upper clamp plate 222
Two long axis edge directions of frame 3 are set, and two short axle edge directions of frame 3 are arranged in elastic plate 4.
Further, flexible circuit board 4 is additionally provided with to far from 11 direction of vibrating diaphragm far from a side surface of vibrating diaphragm 11 and is recessed
The second vibrating diaphragm 5.The outer ring 41 and the second vibrating diaphragm 5 of side plate 232 and the fixed elastic plate 4 of 31 sandwiched of side wall.It in this way can be further
Improve the stability of vibration of vibrational system.
As shown in Figures 4 to 6, the present invention also provides a kind of manufacturing methods of above-mentioned loudspeaker mould group comprising following step
It is rapid:
Step S1: providing frame injection mold, the first mould material and the second mould material, the first mould material include upper clamp plate 222 and with
The first injection molding that upper clamp plate 222 is connected even shelves 200, the second mould material include flexible circuit board 4 and be connected with flexible circuit board 4 the
Two injection moldings even shelves 300, the first mould material and the second mould material respectively there are two, respectively correspond the upper clamp plate and flexible electrical of loudspeaker mould group
The position of road plate is arranged；
Step S2: the first mould material and the second mould material are respectively put into frame injection mold, in frame injection mold
Equipped with guide post used for positioning, even shelves 200 and the second injection molding connect the positioning being respectively equipped on shelves 300 with guide post cooperation for the first injection molding
Hole realizes that the first mould material, the second mould material and the frame are infused by the location hole and the guide post precise match
The accurate positioning of mould；Specifically, location hole includes that the first injection molding is arranged in connect the first positioning hole 201 on shelves 200 and set
Set the second location hole 301 in the second injection molding even shelves 300；
Step S3: molding, injection plastic material molding, plastic material can need to select according to the actual situation, such as can be with
It is any in polyethylene (PE), polypropylene (PP), Acrylnitrile-Butadiene-Styrene (ABS), polyvinyl chloride (PVC)
It is a kind of.
Step S4: frame semi-finished product are taken out in die sinking, and the first injection molding even shelves 200 and second company's of injection molding shelves 300 are cut off, obtained
Frame 3；
Assembling product is completed in step S5, assembly: vibrational system 1 and magnetic circuit system 2 and the assembling of frame 3 are obtained loudspeaker mould
Group.The gluing for specifically including progress voice coil is glued at the bottom of voice coil with the spot welding of voice coil line, by the second vibrating diaphragm, turns over frame 2
Turn and glued vibrating diaphragm, overturn again after magnetic circuit system is installed, to complete the assembly of product, obtain loudspeaker mould group.
It includes the basin with accommodation space that the present invention, which provides a kind of loudspeaker mould group and its manufacturing method, loudspeaker mould group,
Frame, the magnetic circuit system being contained in the frame and vibrational system, the vibrational system include vibrating diaphragm and the vibrating diaphragm are driven to shake
Dynamic voice coil, the frame include the side wall for surrounding accommodation space, and the magnetic circuit system includes magnet steel and is sticked in the magnet steel
On upper clamp plate, the loudspeaker mould group further includes the flexible circuit board being electrically connected with the voice coil, the upper clamp plate and described
Flexible circuit board integrated injection molding is in the frame.Loudspeaker mould group of the invention and its manufacturing method, can with precise positioning, and
The fixation problem for effectively solving upper clamp plate and flexible circuit board, prevents the reliability for falling and influencing product.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. a kind of loudspeaker mould group comprising have frame, the magnetic circuit system being contained in the frame and the vibration of accommodation space
Dynamic system, which is characterized in that the vibrational system includes vibrating diaphragm and the voice coil for driving the diaphragm oscillations, and the frame includes enclosing
At the side wall of accommodation space, the magnetic circuit system includes magnet steel and the upper clamp plate that is sticked on the magnet steel, the loudspeaker mould
Group further includes the flexible circuit board being electrically connected with the voice coil, and the upper clamp plate and the flexible circuit board integrated injection molding are described
In frame.
2. loudspeaker mould group according to claim 1, which is characterized in that there are two the flexible circuit board is total, set respectively
It sets in the two sides of the voice coil.
3. loudspeaker mould group according to claim 1, which is characterized in that the flexible circuit board includes and the voice coil phase
Inner ring even with the outer ring of the frame integrated injection molding and connect the connection rings of the inner ring and outer rings, the inner ring with it is described
Voice coil is fixedly connected.
4. loudspeaker mould group according to claim 1, which is characterized in that the side wall includes the upper table close to the vibrating diaphragm
Face, the lower surface far from the vibrating diaphragm and the inward flange and outer edge that connect the upper surface and the lower surface, the flexibility
The lower surface of the side wall is arranged in circuit board and the upper clamp plate.
5. loudspeaker mould group according to claim 1, which is characterized in that the frame is long strip type structure, the upper folder
Two long axis edge directions of the frame are arranged in plate, and two short axle edge directions of the frame are arranged in the flexible circuit board.
6. loudspeaker mould group according to claim 4, which is characterized in that the upper clamp plate includes main part and from the master
The bending part that the two sides bending in body portion extends, the bending part extend and inside integrated injection moldings to the frame.
7. loudspeaker mould group according to claim 5, which is characterized in that the vibrating diaphragm includes centrally located top dome and ring
Around the ring of the top dome, the flexible circuit board is provided with far from a side surface of the vibrating diaphragm to far from the vibrating diaphragm direction
Second vibrating diaphragm of recess.
8. the manufacturing method of loudspeaker mould group described in any one of -7 claims according to claim 1, which is characterized in that
This method comprises the following steps:
Step S1: providing frame injection mold, the first mould material and the second mould material, the first mould material include upper clamp plate and with it is described
The first injection molding that upper clamp plate is connected even shelves, the second mould material include flexible circuit board and be connected with the flexible circuit board the
Two injection moldings even shelves, the first mould material and the second mould material respectively there are two；
Step S2: the first mould material and the second mould material are respectively put into the frame injection mold, the frame note
Be equipped with guide post used for positioning in mould, first injection molding even shelves and second injection molding be even respectively equipped on shelves with it is described
The location hole of guide post cooperation realizes the first mould material, second mould by the location hole and the guide post precise match
The accurate positioning of material and the frame injection mold；
Step S3: molding, injection plastic material molding；
Step S4: frame semi-finished product are taken out in die sinking, by first injection molding even shelves and the second injection molding even shelves excision, obtain basin
Frame；
Step S5: vibrational system and magnetic circuit system and the frame are assembled, the loudspeaker mould group is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/727,967 US11032649B2 (en) | 2019-03-05 | 2019-12-27 | Speaker module and method for manufacturing same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304614 | 2018-08-14 | ||
| CN2018213046149 | 2018-08-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110062314A true CN110062314A (en) | 2019-07-26 |
| CN110062314B CN110062314B (en) | 2021-04-02 |
Family
ID=67316546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164167.4A Expired - Fee Related CN110062314B (en) | 2018-08-14 | 2019-03-05 | Loudspeaker module and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110062314B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021232485A1 (en) * | 2020-05-21 | 2021-11-25 | 瑞声声学科技(深圳)有限公司 | Loudspeaker module |
| WO2022006985A1 (en) * | 2020-07-09 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN114125663A (en) * | 2020-08-25 | 2022-03-01 | 华为技术有限公司 | Electroacoustic transducer, loudspeaker module and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110062314B (en) | 2021-04-02 |
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