CN207665191U - A kind of loud speaker module - Google Patents
A kind of loud speaker module Download PDFInfo
- Publication number
- CN207665191U CN207665191U CN201721855223.1U CN201721855223U CN207665191U CN 207665191 U CN207665191 U CN 207665191U CN 201721855223 U CN201721855223 U CN 201721855223U CN 207665191 U CN207665191 U CN 207665191U
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- China
- Prior art keywords
- support portion
- loud speaker
- side wall
- screen cloth
- sound
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Abstract
The utility model discloses a kind of loud speaker module, sound-absorbing member including module shell and in the module shell for accommodating sound-absorbing material, the sound-absorbing member include around formed holding tank side wall and with the fixed screen cloth in side wall top surface, the sound-absorbing member further comprises extending internally support portion towards holding tank along the side wall inner surfaces, the sound-absorbing member of the utility model includes support portion, support portion is fixed with screen cloth, support can be provided to be fixed on the screen cloth of side wall top surface, prevent screen cloth vibration from generating noise, improve sound quality, the fixed stability of screen cloth also can be improved simultaneously, prevent screen cloth from disengaging.
Description
Technical field
The utility model is related to acoustic-electric switch technology fields.More particularly, to a kind of loud speaker module.
Background technology
Loud speaker module is that a kind of device that can convert electrical energy into acoustic energy is widely used in as phonation unit
In the terminal devices such as mobile phone.In recent years, with the development of the relevant technologies and the continuous improvement of user demand, for loud speaker module
Sound quality propose increasingly higher demands.
As depicted in figs. 1 and 2, loud speaker module generally includes module shell 11 and raising in the module shell 11
Sound device monomer 12, the cavity that module shell 11 surrounds is divided into the preceding operatic tunes and the rear operatic tunes by loudspeaker monomer 12.It raises one's voice to reduce
The F0 (resonant frequency) of device module, improves low frequency frequency response, and spread bandwidth usually accommodates sound-absorbing material, sound absorber in the rear operatic tunes
Material can effectively reduce the F0 of module, and make intermediate frequency frequency response curve more smooth, be a weight in loud speaker module
Want component.The set-up mode of usual sound-absorbing material is to design the special filling of holding tank 13 in loud speaker module back cavity cavity to inhale
Sound material is fixed with screen cloth 14 on holding tank 13, sound-absorbing material is separated and carried out with the other regions of the operatic tunes after loud speaker module
Airflow.Holding tank 13 includes the side wall 15 for forming accommodation space, and screen cloth 14 and 15 top surface of side wall of holding tank 13 pass through heat
Process of smelting combines, and hot melt zone 16 is 14 border of screen cloth, and 14 intermediate position of screen cloth is in vacant state, therefore, if screen cloth 14
Area is larger, and the binding force that 14 intermediate position of screen cloth is subject to is smaller, is easy to be vibrated by screen cloth 14 when loudspeaker monomer 12 works
Gas shock and generate noise, influence sound quality, and if screen cloth 14 stretched when heating it is not in place, screen cloth 14 heat after state
It is not tight enough, it is also easy to happen vibration and generates noise.In addition, 14 border of screen cloth sometimes by structure limited hot melt width it is smaller,
Cause shell and 14 thermal capacitance area of screen cloth smaller, binding force is insufficient.
Accordingly, it is desirable to provide a kind of loud speaker module, prevents screen cloth from vibrating excessive introducing noise, increases screen cloth hot melt and fix
Area, improve loud speaker module sound quality.
Utility model content
The purpose of this utility model is to provide a kind of loud speaker modules, support and fix screen cloth, prevent screen cloth vibrated
It is big to introduce noise, increase screen cloth and heat fixed area, improves screen cloth and heat fixed stability, improve the sound of loud speaker module
Matter.
In order to achieve the above objectives, the utility model uses following technical proposals：
The utility model discloses a kind of loud speaker module, including module shell and it is used in the module shell
Accommodate sound-absorbing material sound-absorbing member, the sound-absorbing member include around formed holding tank side wall and with the side wall top surface
Fixed screen cloth.
The sound-absorbing member further comprises extending internally support portion towards holding tank along the side wall inner surfaces.
Preferably, the upper surface of the support portion is flushed with the side wall top surface.
Preferably, the support portion includes at least one strip interconnecting piece being connect with the side wall.
Preferably, the side wall include two opposite first while and when two opposite second；
The support portion include with two first while center and/or the strip that connect of center at two second, connect
Portion.
Preferably, the width of the strip interconnecting piece is 0.5-2mm.
Preferably, the support portion is the sheet of linear type, cross, M shape, groined type, grid or inclined stripe shape
Structure.
Preferably, the upper surface hot melt adhesive of the screen cloth and the support portion is fixed.
Preferably, the width of the screen cloth and the upper surface hot melt adhesive of the support portion is 0.5-1mm.
Preferably, the support portion and the side wall integrated injection molding or seperated fixation.
Preferably, the module shell is located at the region in the holding tank equipped with filling aperture and close with the filling aperture
Seal the PET sheet of setting.
The beneficial effects of the utility model are as follows：
The loud speaker module of the utility model includes extending internally support portion towards holding tank along the side wall inner surfaces,
The support portion can provide the middle section of screen cloth certain support force, and the Oscillation Amplitude in limitation screen cloth center reduces noise.Into
One step, the screen cloth can be heated with the support portion and be fixed, and increased screen cloth and heated fixed area, to which screen cloth can be improved
Fixing and bonding force makes screen cloth be not easy to disengage, and improves the fixed stability of screen cloth, further limits the vibration of screen cloth, reduces noise,
Improve sound quality.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the schematic diagram of loud speaker module in the prior art；
Fig. 2 shows the exploded views of loud speaker module in the prior art；
Fig. 3 shows the schematic diagram of the utility model loud speaker module specific embodiment；
Fig. 4 shows the exploded view of the utility model loud speaker module specific embodiment sound-absorbing member；
Fig. 5 shows the exploded view of the utility model loud speaker module specific embodiment；
Reference numeral：
11, module shell, 12, loudspeaker monomer, 13, holding tank, 14, screen cloth, 15, side wall, 16, hot melt zone；
21, module shell, 22, loudspeaker monomer, 23, holding tank, 24, screen cloth, 25, side wall, 26, hot melt zone, 211,
Upper casing, 212, middle shell, 213, lower casing, 27, support portion, 271, strip interconnecting piece, 28, FPCB plates, 29, damping hole, 30, damping
Piece, 31, filling aperture, 32, PET pieces.
Specific implementation mode
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
Fig. 3-Fig. 5 shows a kind of schematic diagram of loud speaker module specific embodiment of the utility model, a kind of in the present embodiment
Loud speaker module, including module shell 21 and the sound-absorbing member in the module shell 21 for accommodating sound-absorbing material,
The sound-absorbing member include around the side wall 25 for forming holding tank 23 and with the fixed screen cloth in 25 top surface of the side wall 24.
The sound-absorbing member further comprises extending internally support portion towards holding tank 23 along 25 inner surface of the side wall
27.The support portion 27 can provide the middle section of screen cloth 24 certain support force, and the Oscillation Amplitude in 24 center of limitation screen cloth is prevented
When only loud speaker module works, since the vibration of screen cloth 24 generates gas shock to loudspeaker monomer 22, so as to reduce noise.
It is preferably carried out mode as one kind, in the present embodiment, the upper surface of the support portion 27 is pushed up with the side wall 25
Face flushes.On the one hand, the upper surface of support portion 27 can be contacted with screen cloth 24, be played a supporting role, on the other hand, support portion 27
Upper surface is flushed with the top surface of side wall 25, does not increase the sound-absorbing member of setting sound-absorbing material on loud speaker module thickness direction
Volume.
It is preferably carried out mode as one kind, in the present embodiment, the side wall 25 includes at least one with the side wall 25
The strip interconnecting piece 271 of connection.Support portion 27 is connect by strip interconnecting piece 271 with side wall 25, and the stabilization of support portion 27 is improved
Property, while making to retain certain space between strip interconnecting piece 271, ensure that air-flow flowing is smooth, realizes the sound quality tune of sound-absorbing material
Whole effect.Preferably, the strip interconnecting piece 271 of support portion 27 can be arranged multiple, promote support effect.
In the present embodiment, the side wall 25 include two opposite first while and when two opposite second.Preferably, institute
State support portion 27 include with two first while center and/or the strip interconnecting piece 271 that connect of center at two second, so that
Support portion 27 passes through the center of the screen cloth 24, to the central supporting of screen cloth 24.It is highly preferred that the support portion 27 can be used one
The laminated structure of the various shapes such as font, cross, M shape, groined type, grid or inclined stripe shape.In practical applications,
Other shapes can also be used in the support portion 27, and the utility model is not restricted this.
It is preferably carried out mode as one kind, the width of the strip interconnecting piece 271 may be configured as between 0.5-2mm
Certainly in practical applications, the strip interconnecting piece 271 of other width can also be used in any width.
It is preferably carried out mode as one kind, in the present embodiment, the upper surface of the screen cloth 24 and the support portion 27 can
It is fixed by the way of hot melt adhesive, to improve the gross area of 24 hot melt adhesive of screen cloth, improves screen cloth 24 and combine fixed combination
Power makes screen cloth 24 be not easy to disengage, and improves 24 fixed stability of screen cloth, improves product quality.Preferably, screen cloth 24 and the branch
The width of the hot melt zone 26 of the hot melt adhesive of support part 27 can be between 0.5-1mm any width in practical applications can root
Suitable hot melt adhesive width is selected according to the shape of the support portion 27 and the width of strip interconnecting piece 271.
Preferably, the support portion 27 can with 25 integrated injection molding of the side wall, to simplify technique, certainly, the support
Portion 27 can also be to be fixed again with the side wall 25 after being first molded.When the support portion 27 is seperated with the side wall 25 fixed, institute
State support portion 27 can also use sheet metal construction, further can by screen cloth 24 by way of gluing with the support portion 27
It is fixed, when using Metal screen cloth 24, it can also be fixed by welding with the support portion 27.
In the present embodiment, the region that the module shell 21 of loud speaker module is located in the holding tank 23 is further provided with filling
Fill hole 31 and can be from the PET sheet 32 of filling aperture 31 described in 21 outer side seal of module shell, specifically, the mould in the present embodiment
Assembly housing 21 is formed by the combination of upper casing 211, middle shell 212 and lower casing 213, and the filling aperture 31 is set on the upper casing 211.It is logical
Overheat, which melts process for pressing, fixes screen cloth 24 and the upper surface of the side wall 25 and the support portion 27, and formation can accommodate sound-absorbing
The accommodation space of material, later in the outside of the module shell 21 by the filling aperture 31 that is formed on the upper casing 211 to institute
Filling sound-absorbing material in accommodation space is stated, it is filling that the filling aperture 31 is sealed by PET sheet 32 after the completion, prevent filling suction
Sound material is revealed.
In practical applications, it includes holding around formation that the sound-absorbing member, which may be set to be including holding in the palm shell, the support shell,
It receives the side wall 25 of slot 23 and the side wall of shell is held in the palm in the bottom surface that is connect with 25 bottom of the side wall after filling sound-absorbing material
25 top surfaces and the upper surface of support portion 27 are fixed with screen cloth 24 again.Preferably, sound-absorbing granular materials can be selected in the sound-absorbing material.
In the present embodiment, loud speaker module further comprises that loudspeaker monomer 22, loudspeaker monomer 22 will be outside the modules
The space that shell 21 surrounds is divided into the preceding operatic tunes and the rear operatic tunes, and module outlet sound mouth, institute are offered on the module shell 21 of the preceding operatic tunes
The operatic tunes further comprises the channel of speaking being connect with the module outlet sound mouth before stating, for turning 22 electroacoustic of the loudspeaker monomer
It changes outside the voice transmission to module of generation.The module shell 21 of the operatic tunes is equipped with damping hole 29 and damping fin 30 after described,
Damping hole 29 cooperatively forms the damping structure of operatic tunes air pressure after adjusting with damping fin 30, is ensureing loudspeaker monomer 22 just
Often work adjusts the sound quality of loudspeaker monomer 22.
The loudspeaker monomer 22 includes monomer shell and the vibrational system in the monomer shell and magnetic circuit system
System.
The vibrational system includes combined vibrating diaphragm and voice coil, and electrical connection sound is further fixed on monomer shell
Circle and the FPCB plates 28 of external circuit, FPCB plates 28 can be connected voice coil and external circuit, and external circuit is by FPCB plates 28 to sound
Inputing power is enclosed, so that voice coil is vibrated under the action of magnetic circuit system and drives diaphragm oscillations sounding.
The vibrating diaphragm that the vibrating diaphragm may include the vibrating diaphragm central part in vibrating diaphragm center and be connect with vibrating diaphragm central part edge
Edge part.In order to increase the vibration characteristics of vibrating diaphragm, usual vibrating diaphragm central part includes body central portion and is incorporated in the ontology
The reinforcement central part on center portion surface.In order to mitigate vibrating diaphragm weight, diaphragm oscillations performance is further increased, it can be by body central portion
Central hollow out.Wherein, the hollow out edge in body central portion need to be located at the inside at fixed reinforcement central part edge in connection, protect
Card fretwork area is less than the area for the reinforcement central part being bonded with it, to ensure the air-tightness of vibrating diaphragm.The lower of the vibrating diaphragm can
Fixed voice coil, the reinforcement central part may be incorporated in body central portion close to the side of voice coil, can also be incorporated in body central
Portion deviates from the side of voice coil.Voice coil can be fixed in body central portion or the join domain in body central portion and vibrating diaphragm edge part
On, when the reinforcement central part is incorporated in body central portion close to the side of voice coil, voice coil can also be fixed on reinforcement central part
On.
The magnetic circuit system may include conductive magnetic yoke, the magnet for being fixed on conductive magnetic yoke center and leading positioned at magnet upper surface
Magnetic sheet.The conductive magnetic yoke includes flat bottom wall and the conductive magnetic yoke side wall that extends towards vibrational system along bottom wall edge.Magnetic conduction
The magnetic gap for accommodating voice coil lower end is formed between the conductive magnetic yoke side wall and magnet and magnetic conductive board of yoke.In practical applications, in order to increase
The magnetic field intensity that big magnetic circuit system is formed, magnetic circuit system can also be used in the centrally disposed magnet and magnetic conductive board of conductive magnetic yoke are formed
Heart magnetic circuit is arranged multiple side magnet at the edge of conductive magnetic yoke, and in the magnetic conductive board in the setting of the upper surface of magnet, forms side magnetic
Road, to form the magnetic gap for accommodating voice coil between center magnetic path and side magnetic circuit.Conductive magnetic yoke is generally rectangular, and side magnet can be arranged
On four sides of conductive magnetic yoke, it can be also positioned only at two opposite long sides of conductive magnetic yoke or short side, be not arranged in the conductive magnetic yoke of magnet
Edge extends vertically to form conductive magnetic yoke side wall relative to conductive magnetic yoke, and side magnetic circuit and conductive magnetic yoke side wall are formed with center magnetic path between magnetic jointly
Gap.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The row of protection domain.
Claims (10)
1. a kind of loud speaker module, including module shell and the sound-absorbing in the module shell for accommodating sound-absorbing material
Component, the sound-absorbing member include around formed holding tank side wall and with the fixed screen cloth in side wall top surface, feature
It is,
The sound-absorbing member further comprises extending internally support portion towards holding tank along the side wall inner surfaces.
2. a kind of loud speaker module according to claim 1, which is characterized in that the upper surface of the support portion and the side
Wall top surface flushes.
3. a kind of loud speaker module according to claim 1, which is characterized in that the support portion includes at least one and institute
State the strip interconnecting piece of side wall connection.
4. a kind of loud speaker module according to claim 3, which is characterized in that the side wall includes two opposite first
While and when two opposite second；
The support portion include with two first while center and/or the strip interconnecting piece that connect of center at two second,.
5. a kind of loud speaker module according to claim 3 or 4, which is characterized in that the width of the strip interconnecting piece is
0.5-2mm。
6. a kind of loud speaker module according to claim 1, which is characterized in that the support portion be linear type, cross,
The laminated structure of M shape, groined type, grid or inclined stripe shape.
7. a kind of loud speaker module according to claim 1, which is characterized in that the upper table of the screen cloth and the support portion
Face hot melt adhesive is fixed.
8. a kind of loud speaker module according to claim 7, which is characterized in that the upper table of the screen cloth and the support portion
The width of face hot melt adhesive is 0.5-1mm.
9. a kind of loud speaker module according to claim 1, which is characterized in that the support portion is integrally noted with the side wall
It is moulded into type or seperated fixed.
10. a kind of loud speaker module according to claim 1, which is characterized in that the module shell is located at the receiving
Region in slot is equipped with filling aperture and the PET sheet with the filling aperture sealed set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855223.1U CN207665191U (en) | 2017-12-26 | 2017-12-26 | A kind of loud speaker module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855223.1U CN207665191U (en) | 2017-12-26 | 2017-12-26 | A kind of loud speaker module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207665191U true CN207665191U (en) | 2018-07-27 |
Family
ID=62943698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721855223.1U Active CN207665191U (en) | 2017-12-26 | 2017-12-26 | A kind of loud speaker module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207665191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971996A (en) * | 2019-12-26 | 2020-04-07 | 歌尔股份有限公司 | Sound generating device module and electronic product |
| WO2020082535A1 (en) * | 2018-10-26 | 2020-04-30 | 歌尔股份有限公司 | Sound generator and earphone |
-
2017
- 2017-12-26 CN CN201721855223.1U patent/CN207665191U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020082535A1 (en) * | 2018-10-26 | 2020-04-30 | 歌尔股份有限公司 | Sound generator and earphone |
| CN110971996A (en) * | 2019-12-26 | 2020-04-07 | 歌尔股份有限公司 | Sound generating device module and electronic product |
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