CN109275082A - Loudspeaker mould group - Google Patents
Loudspeaker mould group Download PDFInfo
- Publication number
- CN109275082A CN109275082A CN201811441240.XA CN201811441240A CN109275082A CN 109275082 A CN109275082 A CN 109275082A CN 201811441240 A CN201811441240 A CN 201811441240A CN 109275082 A CN109275082 A CN 109275082A
- Authority
- CN
- China
- Prior art keywords
- acoustic aperture
- fixed part
- mould group
- separation
- plug division
- 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
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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
- 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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The present invention discloses a kind of loudspeaker mould group, module casing including forming accommodation space, and the loudspeaker monomer in accommodation space is set, accommodation space is divided into the preceding operatic tunes and the rear operatic tunes by loudspeaker monomer, module casing offers the acoustic aperture out being connected to the preceding operatic tunes, module casing outer surface secure bond at acoustic aperture out has fixed part, the loudspeaker mould group further includes the separation acoustic aperture of annular, the side surface outwardly convex that acoustic aperture is separated close to module casing forms plug division, plug division has shape corresponding with the matching of the inner surface of acoustic aperture out, plug division is set as being interference fitted with acoustic aperture out, and separate the surface that acoustic aperture is adhered to fixed part by flexible toughness bonding agent.When such structure makes drop test, the folding force that separation acoustic aperture generates is undertaken by shell, is reduced and is generated separating force between separation acoustic aperture and fixed part, meanwhile, buffering energy-absorbing is provided by flexible toughness bonding agent, absorbs vibratory impulse, improves the reliability of this product.
Description
Technical field
The present invention relates to electroacoustic techniques fields.More particularly, to a kind of loudspeaker mould group.
Background technique
Loudspeaker mould group would generally open up out acoustic aperture on module shell, and the sound that vibrating diaphragm issues is by going out acoustic aperture outwardly
It propagates.It, generally can be close in the surrounding adhesive seal circle of acoustic aperture out in order to guarantee the leakproofness after loudspeaker mould group and machine assembly
The material of seal is mostly silicon rubber.But in the paste process of sealing ring, it is not easy to position sealing ring, sealing ring is easy
Patch partially, can shelter from a part and go out acoustic aperture, poor so as to cause the consistency of complete machine, influence the acoustic efficiency of complete machine and sealing not
It is good.
There is a kind of loudspeaker mould group at present by way of post forming, goes out acoustic aperture for what silicon rubber was molded into module casing
Upper formation sealing ring, but such method must need the plastic material of module casing to want high temperature resistant, can generally select PEI material,
Material of the PEI material relative to common module shell, such as D151, D251 are much higher, thus can improve module shell at
This.And loudspeaker module shell is all complicated moulding, and penetrating mold using the two of quadric injection mould will also become to tie
Structure is complicated, on the one hand can integrally improve the cost of manufacture of loudspeaker mould group, on the other hand two penetrate after module shell entirety
Size is also not easy to guarantee.Therefore, inventor proposes a kind of technical solution, increases an annular separation sound in loudspeaker mould group
Hole, sealing ring by way of quadric injection mould with to separate acoustic aperture integrally formed, separation acoustic aperture passes through glue around going out acoustic aperture setting
Water is adhesively fixed with module casing.
But the loudspeaker mould group of such structure, when falling reliability test, the combination for separating acoustic aperture and module shell is strong
Degree is not enough to overcome moment of flexure when dropping shock, and separation acoustic aperture can fall off from module shell, so that reliability test be made to fail.
Summary of the invention
It is difficult to fall off from module casing the purpose of the present invention is to provide a kind of separation acoustic aperture, the loudspeaker of high reliablity
Mould group.
According to an aspect of the invention, there is provided a kind of loudspeaker mould group, the module casing including forming accommodation space,
And the loudspeaker monomer in the accommodation space is set, the accommodation space is divided into the preceding operatic tunes by the loudspeaker monomer
With the rear operatic tunes, the module casing offers the acoustic aperture out being connected to the preceding operatic tunes, outside the module casing at the acoustic aperture out
Side surface secure bond has fixed part, which further includes the separation acoustic aperture of annular, and the separation acoustic aperture leans on near-lying mode group
One side surface outwardly convex of shell forms plug division, and the plug division has corresponding with the inner surface matching of acoustic aperture out
Shape, the plug division is set as being interference fitted with acoustic aperture out, and the separation acoustic aperture is adhered to by flexible toughness bonding agent
The surface of the fixed part.
Preferably, the fixed part is formed by the outer surface outwardly convex of the module casing, and the fixed part is cut
Face shape is U-shaped.
Preferably, the shape of the separation acoustic aperture is rectangle, and corresponding with the U-shaped fixed part matching, the flexible toughness is viscous
The first adhesive tape that agent includes the stripe shape that lateral edges each extend over along the two of the U-shaped fixed part is connect, first adhesive tape is located at
It separates in the outer side bottom surface edge of acoustic aperture and the two of U-shaped fixed part between lateral edges.
Preferably, the outer side bottom surface edge of the separation acoustic aperture is recessed inwardly to form the first glue groove, first adhesive tape
Side be located in first glue groove.
Preferably, the flexible toughness bonding agent further includes U-shaped second extended along the U-shaped fixed part inside top surface edge
Adhesive tape, second adhesive tape are located between the outer surface and U-shaped fixed part inside top surface edge of the separation acoustic aperture.
Preferably, the U-shaped fixed part inside top surface edge is recessed inwardly to form the second glue groove, second adhesive tape
Side is located in second glue groove.
Preferably, the cross sectional shape of the acoustic aperture out is rectangle, and the cross sectional shape of the separation acoustic aperture plug division is U-shaped.
Preferably, the U-shaped plug division is inverted U setting, and U-shaped opening is flushed with the bottom surface for separating acoustic aperture.
Preferably, the two sidewalls of the plug division are respectively positioned on the inside of the separation acoustic aperture sidewall edge.
Preferably, the width of the plug division is less than or equal on the module casing width for going out acoustic aperture.
Beneficial effects of the present invention are as follows:
The separation acoustic aperture plug division of loudspeaker mould group of the present invention is set as going out acoustic aperture interference fit with shell, while separation sound
Hole also passes through flexible toughness bonding agent and is adhesively fixed with fixed part outstanding on shell, so that separation acoustic aperture generates when drop test
Folding force undertaken by shell, reduce separation acoustic aperture and fixed part between generating separating force, meanwhile, provided by flexible toughness bonding agent
Buffering energy-absorbing absorbs vibratory impulse, to be not easy to generate crack between separation acoustic aperture and shell, causes separation acoustic aperture from shell
On fall off, improve the reliability of this loudspeaker mould group.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows decomposition texture schematic diagram of the invention.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As shown in Figure 1, the present invention provides a kind of loudspeaker mould group, which includes module casing and loudspeaker monomer,
Accommodation space is formed in module casing, loudspeaker monomer is contained in the accommodation space, and before the accommodation space is separated into
The operatic tunes and the rear operatic tunes.Loudspeaker monomer is moving-coil type monomer or moving-iron type monomer.For ease of description, in the present embodiment with
For moving-coil type monomer.Moving-coil type monomer includes vibration component and magnetic circuit component.Vibration component includes vibrating diaphragm and voice coil, vibrating diaphragm with
Voice coil is fixedly connected.The magnetic circuit system includes magnetic yoke and the centring magnet and side magnetic that are set on one side surface of magnetic yoke
Iron, forms magnetic gap between centring magnet and side magnet, one end of voice coil is inserted into magnetic gap.After voice coil is powered, voice coil meeting
It is vibrated under the action of magnetic circuit system, at the same time, voice coil driving vibrating diaphragm vibrates together, realizes the sounding of vibrating diaphragm.Module casing
Including mutually matched upper casing 1 and middle shell 2, acoustic aperture is offered out on the side wall of middle shell 2, acoustic aperture is connected to the preceding operatic tunes out, vibrating diaphragm
The sound of sending is outwardly propagated by going out acoustic aperture.This belongs to the common knowledge of those skilled in the art, herein no longer specifically
It is bright.
Loudspeaker mould group of the invention further includes separation acoustic aperture 3, and separation acoustic aperture 3 is set as annular, close to middle 2 side of shell
Surface outwardly convex formed plug division 31, the shape of plug division 31 is corresponding with the matching of the inner surface of acoustic aperture out, plug division 31
It is set as being interference fitted with acoustic aperture out.The side wall of separation acoustic aperture 3 is equipped with the opening being connected to acoustic aperture out, out acoustic aperture and separation sound
Sound channel is collectively formed in the space that the side wall in hole 3 is enclosed, and the sound that vibrating diaphragm issues outwardly is passed by the sound channel
It broadcasts.
Middle shell 2 has fixed part 22 close to the outer surface secure bond for going out acoustic aperture, and the plug division 31 of separation acoustic aperture 3 is inserted into out
After acoustic aperture, acoustic aperture 3 is separated by flexible toughness bonding agent and is adhered to 22 surface of fixed part.Flexible toughness bonding agent can be silica gel, institute
Stating has certain elasticity after silica gel solidifies.
The side that plug division 31 can be located at separation acoustic aperture 3 makes to separate in the acoustic aperture out of the laterally inserted middle shell 2 of acoustic aperture 3, inserts
The end face that socket part 31 can also be located at separation acoustic aperture 3 is longitudinally inserted into separation acoustic aperture 3 in the acoustic aperture out of middle shell 2.As shown in Figure 1
Present embodiment in, plug division 31 be located at separation acoustic aperture side, when carrying out falling reliability test, due to plug division 31
It is fitted close with acoustic aperture out, so that the folding force that separation acoustic aperture 3 is subject to is undertaken by middle shell 2, enhances separation acoustic aperture 3 and middle shell 2
Bond strength, while flexible toughness bonding agent can absorb impact vibration, reduce to generate between separation acoustic aperture 3 and fixed part 21 and split
The case where seam, occurs, so that separation acoustic aperture 3 is difficult to fall off on therefrom shell 2, improves the reliability of loudspeaker mould group of the present invention.
Further, the fixed part 22 of present embodiment as shown in Figure 1 is convexed to form by the outer surface of middle shell 2, Gu
Determine the lower section that portion 22 is located at acoustic aperture, separation acoustic aperture 3 recycles flexible toughness bonding agent that will separate sound laterally and after middle 2 grafting of shell
Hole 3 is adhered to the surface of fixed part 22.The shape of fixed part 22 is corresponding with the shape for separating acoustic aperture 3, solid in present embodiment
Determine portion 22 and be set as U-shaped, the shape of separation acoustic aperture 3 is set as rectangle corresponding with U-shaped fixed part.Specifically, acoustic aperture 3 is separated
Bottom surface be adhered to U-shaped 22 inner surface of fixed part, flexible toughness bonding agent lateral edges along the two of U-shaped fixed part extend, respectively
Form two the first adhesive tape 4, the first adhesive tape 4 be bonded in lateral edges in the two of U-shaped fixed part with separate acoustic aperture 3 both sides of the edge it
Between.Separation acoustic aperture 3 is adhesively fixed by the first adhesive tape 4 with fixed part 22, since the first adhesive tape 4 is soft ductile material, has one
Fixed elasticity, therefore the first adhesive tape 4 can absorb vibratory impulse, can prevent separation to go out between acoustic aperture 3 and fixed part 22 when falling
Existing crack, on the one hand ensure that the sealing performance of sound channel, on the other hand improves the reliability of this loudspeaker mould group.
Further, the outer side bottom surface edge that acoustic aperture 3 is separated in present embodiment is recessed inwardly to form the first glue groove 32,
The side of first adhesive tape 4 is located in the first glue groove 32 and separates the bonding of acoustic aperture 3.Such structure can prevent excessive glue phenomenon from occurring,
Improve the aesthetic measure of product.
In order to improve the bonding firmness between separation acoustic aperture 3 and U-shaped fixed part 22, improves adhesive tape and absorb vibratory impulse
Ability, present embodiment further include having the second adhesive tape 5, and the second adhesive tape 5 extends shape along 22 inside top surface edge of fixed part
At U-shaped.Second adhesive tape 5 is bonded between fixed part inside top surface edge and the outer surface for separating acoustic aperture 3, separation acoustic aperture 3
Top is adhesively fixed by the second adhesive tape 5 with fixed part 22, and the bottom of separation acoustic aperture 3 is viscous by the first adhesive tape 4 and fixed part 22
Connect fixation.The top of separation acoustic aperture 3 is adhesively fixed with lower part by multiple adhesive tape and fixed part 22, is further increased and is rushed to vibration
The absorption hit is capable of providing more good damping energy-absorbing effect.
Further, 22 inside top surface edge of fixed part is recessed inwardly to form the second glue groove 23, the side of the second adhesive tape 5
Positioned at being located in the second glue groove 23, such structure can prevent excessive glue phenomenon from occurring, and improve the aesthetic measure of product.
In another embodiment, fixed part 22 is set as tabular, and separation acoustic aperture 4 is only by being located at the of bottom edge
One adhesive tape 4 is bonded in the surface of tabular fixed part 22.
Further, plug division 31 needs to have shape corresponding with acoustic aperture out, the outer surface of plug division 31 need with
The inner surface of acoustic aperture fits closely out, realizes the interference fit of the two.The cross sectional shape for going out acoustic aperture in present embodiment is square
Shape, the cross sectional shape of plug division 31 be it is U-shaped, U-shaped plug division outer surface is bonded with three side inner surfaces of acoustic aperture out.Another
In embodiment, the cross sectional shape of acoustic aperture is rectangle out, and the cross sectional shape of plug division 31 is rectangle.Preferably, present embodiment
U-shaped plug division 31 be set as inverted U, the opening of U-shaped plug division 31 is flushed with the bottom surface for separating acoustic aperture 3, plug division 31
Two sidewalls are located at the inside at separation 3 edge of acoustic aperture.The sidewall thickness of plug division 31 is can guarantee that plug division is matched with acoustic aperture interference out
Subject to the intensity of conjunction, the area of section of acoustic aperture will affect out as thickness is excessive, reduce the area of section of sound channel, and then reduce
The acoustic efficiency of loudspeaker mould group.Since the plug division 31 in present embodiment is entirely insertable out in acoustic aperture, plug division 31
Width, that is, the depth be inserted into out in acoustic aperture is less than or equal to the sidewall thickness of middle shell 2, and plug division 31 is avoided to protrude into middle shell
It is internal to generate interference with other components.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (10)
1. a kind of loudspeaker mould group, the module casing including formation accommodation space, and raising in the accommodation space is set
The accommodation space is divided into the preceding operatic tunes and the rear operatic tunes by sound device monomer, the loudspeaker monomer, and the module casing offers
What is be connected to the preceding operatic tunes goes out acoustic aperture, which is characterized in that the module casing outer surface secure bond at the acoustic aperture out has
Fixed part, the loudspeaker mould group further include annular separation acoustic aperture, the separation acoustic aperture close to a side surface of module casing to
Outer lug forms plug division, and the plug division has shape corresponding with the inner surface matching of acoustic aperture out, the grafting
Portion is set as being interference fitted with acoustic aperture out, and the separation acoustic aperture is adhered to the table of the fixed part by flexible toughness bonding agent
Face.
2. loudspeaker mould group according to claim 1, which is characterized in that the fixed part by the module casing outside
Surface outwardly convex is formed, and the cross sectional shape of the fixed part is U-shaped.
3. loudspeaker mould group according to claim 2, which is characterized in that the shape of the separation acoustic aperture is rectangle, with institute
The matching of U-shaped fixed part is stated to correspond to, the flexible toughness bonding agent include along the two of the U-shaped fixed part lateral edges each extend over
First adhesive tape of stripe shape, first adhesive tape are located at lateral edges in the outer side bottom surface edge of separation acoustic aperture and the two of U-shaped fixed part
Between.
4. loudspeaker mould group according to claim 3, which is characterized in that the outer side bottom surface edge of the separation acoustic aperture is inside
Recess forms the first glue groove, and the side of first adhesive tape is located in first glue groove.
5. loudspeaker mould group according to claim 3, which is characterized in that the flexible toughness bonding agent further includes along the U
U-shaped second adhesive tape that type fixed part inside top surface edge extends, second adhesive tape are located at the outer surface of the separation acoustic aperture
Between U-shaped fixed part inside top surface edge.
6. loudspeaker mould group according to claim 5, which is characterized in that the U-shaped fixed part inside top surface edge is inside
Recess forms the second glue groove, and the side of second adhesive tape is located in second glue groove.
7. loudspeaker mould group according to claim 3, which is characterized in that the cross sectional shape of the acoustic aperture out is rectangle, institute
It is U-shaped for stating the cross sectional shape of separation acoustic aperture plug division.
8. loudspeaker mould group according to claim 7, which is characterized in that the U-shaped plug division is inverted U setting, and U-shaped
Opening flushed with the bottom surface for separating acoustic aperture.
9. loudspeaker mould group according to claim 8, which is characterized in that the two sidewalls of the plug division are respectively positioned on described point
Inside from acoustic aperture sidewall edge.
10. loudspeaker mould group according to claim 3, which is characterized in that the width of the plug division is less than or equal to institute
State the width for going out acoustic aperture on module casing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441240.XA CN109275082B (en) | 2018-11-29 | 2018-11-29 | Loudspeaker module |
| PCT/CN2018/125534 WO2020107631A1 (en) | 2018-11-29 | 2018-12-29 | Loudspeaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441240.XA CN109275082B (en) | 2018-11-29 | 2018-11-29 | Loudspeaker module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109275082A true CN109275082A (en) | 2019-01-25 |
| CN109275082B CN109275082B (en) | 2020-06-02 |
Family
ID=65185964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811441240.XA Active CN109275082B (en) | 2018-11-29 | 2018-11-29 | Loudspeaker module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109275082B (en) |
| WO (1) | WO2020107631A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2706985Y (en) * | 2004-03-05 | 2005-06-29 | 杨晋年 | Insert earphone |
| CN102648639A (en) * | 2009-08-25 | 2012-08-22 | 莫列斯公司 | Earphone |
| CN106162461A (en) * | 2016-08-17 | 2016-11-23 | 江西联创宏声电子有限公司 | Speaker module |
| CN207099325U (en) * | 2017-08-11 | 2018-03-13 | 瑞声科技(新加坡)有限公司 | Microphone device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957486B (en) * | 2014-04-29 | 2018-01-02 | 歌尔股份有限公司 | Apply the loudspeaker module in terminal inner |
| CN108600483B (en) * | 2018-05-16 | 2024-08-16 | 深圳市宝尔爱迪科技有限公司 | Waterproof communication equipment of side play sound |
| CN108810762B (en) * | 2018-06-29 | 2020-05-19 | 歌尔股份有限公司 | Loudspeaker and loudspeaker module |
-
2018
- 2018-11-29 CN CN201811441240.XA patent/CN109275082B/en active Active
- 2018-12-29 WO PCT/CN2018/125534 patent/WO2020107631A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2706985Y (en) * | 2004-03-05 | 2005-06-29 | 杨晋年 | Insert earphone |
| CN102648639A (en) * | 2009-08-25 | 2012-08-22 | 莫列斯公司 | Earphone |
| CN106162461A (en) * | 2016-08-17 | 2016-11-23 | 江西联创宏声电子有限公司 | Speaker module |
| CN207099325U (en) * | 2017-08-11 | 2018-03-13 | 瑞声科技(新加坡)有限公司 | Microphone device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109275082B (en) | 2020-06-02 |
| WO2020107631A1 (en) | 2020-06-04 |
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