CN114245275B - Loudspeaker module - Google Patents
Loudspeaker module Download PDFInfo
- Publication number
- CN114245275B CN114245275B CN202111674578.1A CN202111674578A CN114245275B CN 114245275 B CN114245275 B CN 114245275B CN 202111674578 A CN202111674578 A CN 202111674578A CN 114245275 B CN114245275 B CN 114245275B
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- loudspeaker
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- 239000002245 particle Substances 0.000 claims abstract description 39
- 239000000178 monomer Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 15
- 239000000565 sealant Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000013461 design Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a loudspeaker module, which comprises a module shell with an accommodating space and a loudspeaker monomer accommodated in the module shell, wherein the accommodating space is divided into a front sound cavity and a rear sound cavity by the loudspeaker monomer, and sound-absorbing particles are filled in the rear sound cavity; the module shell is provided with an air suction hole communicated with the rear acoustic cavity and used for sucking air outwards; the module shell includes the shell diapire and with the shell lateral wall that the periphery of shell diapire is connected, the shell diapire includes surface and internal surface, the shell lateral wall includes the internal surface, the suction hole include at least by the shell lateral wall is followed the external surface to the shrinkage pool that the internal surface direction is concave establishes, the hole bottom surface of shrinkage pool with the internal surface has the difference in height, the internal surface of shell lateral wall is equipped with the intercommunication the shrinkage pool with the opening in back sound cavity. The loudspeaker module has better acoustic performance and lower production cost.
Description
Technical Field
The invention relates to the technical field of electroacoustic conversion, in particular to a loudspeaker module.
Background
The speaker module belongs to sound-electricity transduction equipment, and can make sound through the conversion of electric signals. At present, the speaker is widely applied to electronic equipment, such as mobile electronic terminals of mobile phones, tablet computers, notebooks and the like. With the development of market consumption and the progress of product design and production and processing technology, electronic equipment is increasingly miniaturized and lighter, and the speaker module is also required to be increasingly miniaturized, so as to adapt to the requirements of electronic products.
In the prior art, sound absorbing particles are filled in a rear sound cavity of a speaker module as an effective means for equivalently increasing the volume of the rear sound cavity, thereby reducing the F0 of the product and improving the sound quality, and the sound absorbing particles are increasingly applied to modern speaker modules. In order to meet the requirements of electronic products, along with miniaturization, light weight and thinning of the electronic products, the internal space structure of the products is more and more complex, the slit areas are more and more, the problem of how to effectively utilize the internal space of a rear acoustic cavity is more and more remarkable, and the existing filling mode is mainly filled by filling holes, but the actual maximum filling amount only accounts for 70% -85% of the theoretical maximum filling amount especially when the rear acoustic cavity is more complex and the slit areas are more. The space utilization rate of the rear acoustic cavity is low, F0 of the product cannot be reduced to the maximum extent, and the tone quality is improved.
Furthermore, in the prior art, through designing the suction hole, in the process of filling sound absorbing particles, the filling quantity and the filling efficiency are promoted through the suction mode of the suction hole, and the SPK acoustic performance is ensured. However, in the existing design of the air suction hole, the air suction hole needs to be designed on the module shell independently, the peripheral shell of the air suction hole is designed as a sinking platform, and after filling is finished, a sealing piece is attached to the sinking platform to seal the air suction hole. With the design, the sinking platform structure occupies a part of the volume of the rear acoustic cavity, so that the maximization of the rear acoustic cavity cannot be realized, and the filling quantity is influenced; subsequent sealing increases the process steps and the cost of production.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the problems in the prior art are overcome, and the loudspeaker module with more optimized design of the air suction hole, better acoustic performance and lower production cost is provided.
In order to solve the technical problems, the technical scheme of the invention is as follows: the loudspeaker module comprises a module shell with an accommodating space and a loudspeaker monomer accommodated in the module shell, wherein the accommodating space is divided into a front sound cavity and a rear sound cavity by the loudspeaker monomer, and sound-absorbing particles are filled in the rear sound cavity;
a filling hole for filling the sound absorbing particles and a first sealing piece for sealing the filling hole are arranged on the module shell at a position corresponding to the rear sound cavity; wherein,
the module shell is also provided with an air suction hole which is communicated with the rear acoustic cavity and used for sucking air outwards;
the module shell includes the shell diapire and with the shell lateral wall that the periphery of shell diapire is connected, the shell diapire includes surface and internal surface, the shell lateral wall includes the internal surface, the suction hole include at least by the shell lateral wall is followed the external surface to the shrinkage pool that the internal surface direction is concave establishes, the hole bottom surface of shrinkage pool with the internal surface has the difference in height, the internal surface of shell lateral wall is equipped with the intercommunication the shrinkage pool with the opening in back sound cavity.
Optionally, the concave hole is formed by concave arrangement of a part of the shell side wall and a part of the shell bottom wall along the outer surface towards the inner surface.
Optionally, the bottom wall of the shell comprises a metal insert, the periphery of the metal insert is embedded in the side wall of the shell, a notch is formed in the edge of the metal insert, and the notch forms a part of the concave hole.
Optionally, in the orthographic projection from the outer surface to the inner surface, the hole wall of the concave hole close to the rear acoustic cavity is flush with the inner wall surface; or,
the hole wall of the concave hole, which is close to the rear acoustic cavity, exceeds the inner wall surface towards the rear acoustic cavity.
Optionally, the recess is covered with a second seal; or, the concave holes are filled with sealant.
Optionally, the concave hole is round or rectangular.
Optionally, the width of the opening is smaller than the size of the sound absorbing particles.
Optionally, the concave hole is circular, the diameter of the concave hole is greater than or equal to 0.5mm and less than or equal to 1mm, and the width of the opening is less than or equal to 0.2mm.
Optionally, the filling hole and the air suction hole are respectively arranged at the diagonal positions of the module shell.
Optionally, the first sealing member is a net-shaped ventilation member, and the filling hole is also used as a leakage hole for air pressure equalization between the rear acoustic cavity and the outside.
Optionally, a ventilation spacer is arranged between the speaker unit and the rear sound cavity to block the sound absorbing particles from entering the speaker unit.
Optionally, the speaker monomer includes vibration system, magnetic circuit and is used for installing vibration system with magnetic circuit's basin frame is equipped with back sound hole on the lateral wall of basin frame, ventilative isolator is located on the lateral wall and cover back sound hole.
Optionally, the breathable spacer is a bowl-shaped three-dimensional mesh structure with an opening at one end, a fixed edge is arranged at the opening of the three-dimensional mesh structure, and the three-dimensional mesh structure is covered on the speaker unit and is fixedly connected with the module shell.
After the technical scheme is adopted, the invention has the beneficial effects that:
according to the loudspeaker module, the concave holes of the air suction holes are arranged in the concave mode corresponding to the side walls of the shell, and the inner wall surfaces of the side walls of the shell are provided with the openings to achieve communication with the rear acoustic cavity.
Furthermore, after filling, sealing the air suction hole is easier to realize, and sealing materials such as sealant can be directly filled into the concave hole because the concave hole is provided with the hole bottom wall, so that the method is simple and easy to implement, the production efficiency can be improved, and compared with the method that sealing elements are attached to the outer surface of the air suction hole, the method can avoid bad processes such as air leakage and deflection caused by insufficient adhesion, and the quality risk is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view of a speaker module according to an embodiment of the present invention;
fig. 2 is a top view of a speaker module according to an embodiment of the invention;
fig. 3 is a schematic cross-sectional view of a speaker module according to an embodiment of the invention;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;
fig. 5 is a schematic structural view of a metal insert in a module housing of a speaker module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of filling sealant in an air suction hole according to an embodiment of the present invention.
Reference numerals illustrate:
1. the module comprises a module shell, 11, a front sound cavity, 12, a rear sound cavity, 13, a shell bottom wall, 131, an outer surface, 132, an inner surface, 14, a shell side wall, 141, an inner wall, 15, a metal insert, 151, a notch, 2, a speaker unit, 3, a filling hole, 31, a first sealing piece, 4, an air suction hole, 41, a concave hole, 411, a hole bottom surface, 412, a hole wall, 42, an opening, 43, sealant, 5 and a ventilation isolation piece.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a loudspeaker module which can be used in electronic equipment such as mobile phones and notebooks and can generate sound.
Referring to fig. 1-5, the speaker module of the present invention includes a module housing 1 having a receiving space and a speaker unit 2 received in the module housing 1.
The loudspeaker unit 2 comprises a vibration system, a magnetic circuit system and a basin frame for installing the vibration system and the magnetic circuit system. The magnetic circuit system forms magnetic gap, vibration system includes vibrating diaphragm and the voice coil loudspeaker voice coil that combines with the vibrating diaphragm, the voice coil loudspeaker voice coil stretches into in the magnetic gap, lets in the electric current in the voice coil loudspeaker voice coil, and the voice coil loudspeaker voice coil is stressed vibration under the effect of magnetic field of magnetic circuit system, and then drives vibrating diaphragm vibration sound production.
Wherein, the speaker unit 2 divides the accommodating space into a front sound cavity 11 and a rear sound cavity 12, and sound absorbing particles are filled in the rear sound cavity 12; the module housing 1 is provided with a filling hole 3 for filling the sound absorbing particles and a first sealing member 31 for sealing the filling hole 3 at a position corresponding to the rear sound cavity 12.
The sound-absorbing particles may be particles having a porous structure, or particles made of a porous structure such as zeolite powder, white carbon, activated carbon, silica, or a mixture of one or more of them, or particles made of a binder, and of course, other materials may be used as the sound-absorbing particles. The sound absorbing particles have powerful gas adsorption and desorption functions and can play a role in volume expansion. The particle size of the sound-absorbing particles used in the prior art is generally between 0.05mm and 0.5mm, although other sizes of sound-absorbing particles are also possible.
The module shell 1 is also provided with an air suction hole 4 which is communicated with the rear acoustic cavity 12 and used for sucking air outwards. Specifically, the module housing 1 includes a bottom wall 13 and a side wall 14 connected to the outer periphery of the bottom wall 13, the bottom wall 13 includes an outer surface 131 and an inner surface 132, the side wall 14 includes an inner wall 141, the suction hole 4 includes a concave hole 41 at least formed by the side wall 14 along the outer surface 131 toward the inner surface 132, a hole bottom 411 of the concave hole 41 has a height difference from the inner surface 132, and the inner wall 141 of the side wall 14 is provided with an opening 42 for communicating the concave hole 41 with the rear acoustic cavity 12.
Through designing the suction hole 4, the back sound cavity 12 can be communicated with the outside through the suction hole 4, and in the process of filling sound absorbing particles into the back sound cavity 12 through the filling hole 3, the outside is sucked through the suction hole 4, so that the sound absorbing particles are gathered under the suction effect. And more sound absorbing particles can be filled relatively, so that the internal space rate of the rear sound cavity 12 can be further improved.
And the shrinkage pool 41 of suction port 4 corresponds shell lateral wall 14 sunken setting to establish opening 42 through the internal face 141 of shell lateral wall 14 and realize with the intercommunication of back sound cavity 12, for the design of establishing suction port 4 on shell diapire 13 in the prior art, need not establish heavy platform structure, practiced thrift back sound cavity 12 volume, can further promote the utilization ratio of back sound cavity 12. Further, after filling, sealing the suction hole 4 is easier to realize, because the concave hole 41 is provided with the hole bottom 411, sealing materials, such as sealant, can be directly filled into the concave hole 41, and the method is simple and easy to implement, so that not only can the production efficiency be improved, but also poor manufacturing procedures of air leakage, deflection and the like caused by insufficient adhesion can be avoided compared with the process of attaching a sealing element to the outer surface of the suction hole, and the quality risk is reduced.
In some embodiments of the present invention, in an orthographic projection from the outer surface 131 toward the inner surface 132, the hole wall 412 of the concave hole 41 adjacent to the rear acoustic cavity 12 is flush with the inner wall surface 141; alternatively, the hole wall 412 of the concave hole 41 adjacent to the rear acoustic chamber 12 extends beyond the inner wall surface 141 toward the rear acoustic chamber 12. In both designs, only the opening is needed in the vertical direction, the inner wall surface 141 of the shell side wall 14 is naturally notched, namely the opening 42, and no through hole is needed to be further transversely formed on the inner wall surface 141 of the shell side wall 14, so that the process is simple to realize.
Specifically, in some embodiments of the present invention, the concave hole 41 is formed by recessing a portion of the shell sidewall 14 and a portion of the shell bottom wall 13 along the outer surface 131 toward the inner surface 132, so that the hole wall 412 of the concave hole 41 near the rear acoustic cavity 12 extends beyond the inner wall 141 toward the rear acoustic cavity 12, and thus only needs to be perforated in a vertical direction, and the inner wall 141 of the shell sidewall 14 naturally forms a notch, i.e., an opening 42.
In some embodiments of the present invention, the bottom wall 13 of the housing includes a metal insert 15, the periphery of the metal insert 15 is embedded in the side wall 14 of the housing, the edge of the metal insert 15 is provided with a notch 151, and the notch 151 forms a part of the concave hole 41. The manner of forming a part of the concave hole 41 by arranging the notch 151 at the edge of the metal insert 15 is completed by one-step processing when the metal insert is punched, so that compared with the manner of processing on a plastic shell, the die design and the process can be simplified, the cost can be reduced, and the efficiency and the yield can be improved.
In some embodiments of the invention, the recess 41 is covered with a second seal, which may be a plug of various materials, or may also be a cover plate or the like; alternatively, the concave hole 41 is filled with the sealant 43. According to the design of the air suction hole 4, after filling, sealing of the air suction hole 4 is easier to achieve, because the concave hole 41 is provided with the hole bottom 411, the second sealing element or the sealant 43 is provided with a bearing structure, sealing materials such as the sealant 43 can be directly filled into the concave hole 41, and the method is simple, convenient and easy to implement, production efficiency can be improved, and compared with the method that the sealing element is attached to the outer surface of the air suction hole, bad processes such as air leakage and deflection caused by insufficient adhesion can be avoided, and quality risks are reduced. In addition, the design of the air suction hole 4 fully utilizes the structure of the shell side wall 14, realizes that the concave hole 41 is provided with the hole bottom surface 411, does not need to additionally design a sinking platform structure for supporting sealing materials, saves the volume of the rear acoustic cavity 12, and can further improve the utilization rate of the rear acoustic cavity 12.
Specifically, the concave hole 41 is circular or rectangular, or other shapes, and can be flexibly designed according to the needs.
In some embodiments of the present invention, the width of the opening 42 is smaller than the size of the sound absorbing particles, so that the sound absorbing particles are prevented from being sucked out during the suction process, and thus the width of the opening 42 needs to be specifically designed according to the specific size of the sound absorbing particles, so that the smallest sound absorbing particles cannot penetrate out of the suction hole 4. In some embodiments of the present invention, the recess 41 has a circular shape, the diameter of the recess 41 is greater than or equal to 0.5mm and less than or equal to 1mm, and the width of the opening 42 is less than or equal to 0.2mm.
In some embodiments of the invention, the filling hole 3 and the suction hole 4 are provided at diagonal positions of the module case 1, respectively. In this design, when the air is sucked through the air suction hole 4, the air flow path in the rear acoustic cavity 12 is longest, the sound-absorbing particles can be filled more uniformly, and the filling quantity and the filling efficiency can be further improved.
In some embodiments of the present invention, the first sealing member 31 is a mesh-shaped air permeable member, and the filling hole 3 doubles as a leakage hole for air pressure equalization between the rear acoustic chamber 12 and the outside. According to the invention, the filling hole and the leakage hole are combined into a whole, and only one sealing piece is required to be stuck during assembly, so that the processing difficulty of the shell can be reduced, and the production cost is reduced; secondly, the material, assembly working procedure stations and operators are reduced, and the production cost is further reduced; furthermore, the hole structure on the shell is reduced, the probability of air leakage of the loudspeaker module due to poor sealing at the hole structure is reduced, the sealing performance and reliability of the loudspeaker module are improved, and the service life of the loudspeaker module is prolonged.
In some embodiments of the invention, a ventilation barrier 5 is provided between the speaker unit 2 and the rear sound chamber 12 to block the sound absorbing particles from entering the interior of the speaker unit 2. And sound absorption particles can influence the sound production effect of the speaker unit 2 and even cause damage to the speaker unit 2 if entering the speaker unit 2. The breathable spacer 5 can be specifically selected from nylon mesh, metal woven mesh, metal etched mesh and the like, ventilation is realized through the microporous structure on the breathable spacer 5, and sound absorption particles are blocked.
The design of the air-permeable barrier 5 is varied, for example in some embodiments of the invention, the side wall of the frame of the loudspeaker unit 2 is provided with rear sound holes, and the air-permeable barrier 5 is provided on said side wall and covers said rear sound holes. In particular, the air-permeable barrier 5 may be fixed to the speaker unit by means of bonding or injection molding. By the design, the whole rear sound cavity 12 can be a filling cavity of sound-absorbing particles, and the filling quantity of the sound-absorbing particles can be improved to the greatest extent.
In other embodiments of the present invention, the air-permeable spacer 5 is a bowl-shaped three-dimensional mesh structure having an opening 42 at one end, a fixing edge is provided at the opening 42 of the three-dimensional mesh structure, and after the speaker unit 2 is fixed to the module case 1, the three-dimensional mesh structure is covered on the speaker unit 2 from the rear side of the speaker unit 2 and the fixing edge is fixedly connected to the module case 1. By the design, the whole rear sound cavity 12 can be a filling cavity of sound-absorbing particles, and the filling quantity of the sound-absorbing particles can be improved to the greatest extent.
In other embodiments of the invention, the air-permeable barrier 5 may further divide the rear sound chamber 12, and a portion of the rear sound chamber remote from the speaker unit may be used as a filling chamber for filling the sound-absorbing particles. The breathable isolation piece can be fixed through inserting slots on the module shell, or can be fixed with the inner wall of the module shell in a hot melting mode. In short, the material, the assembly method, and the like of the air-permeable separator 5 may be selected according to the specific design requirements, and are not limited to the above embodiments.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (13)
1. The loudspeaker module comprises a module shell with an accommodating space and a loudspeaker monomer accommodated in the module shell, wherein the accommodating space is divided into a front sound cavity and a rear sound cavity by the loudspeaker monomer, and sound-absorbing particles are filled in the rear sound cavity;
a filling hole for filling the sound absorbing particles and a first sealing piece for sealing the filling hole are arranged on the module shell at a position corresponding to the rear sound cavity; it is characterized in that the method comprises the steps of,
the module shell is also provided with an air suction hole which is communicated with the rear acoustic cavity and used for sucking air outwards;
the module shell includes the shell diapire and with the shell lateral wall that the periphery of shell diapire is connected, the shell diapire includes surface and internal surface, the shell lateral wall includes the internal surface, the suction hole include at least by the shell lateral wall is followed the external surface to the shrinkage pool that the internal surface direction is concave establishes, the hole bottom surface of shrinkage pool with the internal surface has the difference in height, the internal surface of shell lateral wall is equipped with the intercommunication the shrinkage pool with the opening in back sound cavity.
2. A loudspeaker module according to claim 1, wherein said recess is formed by a portion of said side wall of said housing and a portion of said bottom wall of said housing together being recessed along said outer surface toward said inner surface.
3. A loudspeaker module according to claim 1, wherein the bottom wall of the housing comprises a metal insert, the periphery of the metal insert being embedded in the side wall of the housing, the edge of the metal insert being provided with a notch, the notch constituting a part of the recess.
4. A loudspeaker module according to claim 1, wherein in an orthographic projection from the outer surface toward the inner surface, a wall of the recess adjacent to the rear acoustic cavity is flush with the inner wall; or,
the hole wall of the concave hole, which is close to the rear acoustic cavity, exceeds the inner wall surface towards the rear acoustic cavity.
5. A loudspeaker module according to claim 1, wherein the recess is covered with a second seal; or,
and the concave holes are filled with sealant.
6. A loudspeaker module according to claim 1, wherein the recess is circular or rectangular.
7. A loudspeaker module according to claim 1, wherein the width of the opening is smaller than the size of the sound absorbing particles.
8. A loudspeaker module according to claim 1, wherein the recess is circular, the diameter of the recess is greater than or equal to 0.5mm and less than or equal to 1mm, and the width of the opening is less than or equal to 0.2mm.
9. A loudspeaker module according to claim 1, wherein the filling aperture and the suction aperture are provided at respective diagonal positions of the module housing.
10. A loudspeaker module according to claim 1, wherein the first sealing member is a mesh-like air-permeable member, and the filling hole doubles as a leakage hole for air pressure equalization between the rear acoustic chamber and the outside.
11. A loudspeaker module according to claim 1, wherein a gas-permeable barrier is provided between the loudspeaker unit and the rear acoustic chamber to block the sound absorbing particles from entering the interior of the loudspeaker unit.
12. A loudspeaker module according to claim 11, wherein the loudspeaker unit comprises a vibration system, a magnetic circuit and a frame for mounting the vibration system and the magnetic circuit, a rear sound hole is provided in a side wall of the frame, and the air-permeable spacer is provided in the side wall and covers the rear sound hole.
13. The loudspeaker module of claim 11, wherein the air-permeable spacer is a bowl-shaped solid mesh structure with an opening at one end, a fixing edge is arranged at the opening of the solid mesh structure, the solid mesh structure is covered on the loudspeaker unit and is fixedly connected with the module shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/094322 WO2023123830A1 (en) | 2020-12-31 | 2022-05-23 | Loudspeaker module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020116425115 | 2020-12-31 | ||
| CN202011642511.5A CN113163306A (en) | 2020-12-31 | 2020-12-31 | Loudspeaker module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114245275A CN114245275A (en) | 2022-03-25 |
| CN114245275B true CN114245275B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011642511.5A Pending CN113163306A (en) | 2020-12-31 | 2020-12-31 | Loudspeaker module |
| CN202111674578.1A Active CN114245275B (en) | 2020-12-31 | 2021-12-31 | Loudspeaker module |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011642511.5A Pending CN113163306A (en) | 2020-12-31 | 2020-12-31 | Loudspeaker module |
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| Country | Link |
|---|---|
| CN (2) | CN113163306A (en) |
| WO (1) | WO2023123830A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163306A (en) * | 2020-12-31 | 2021-07-23 | 歌尔股份有限公司 | Loudspeaker module |
Citations (7)
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| CN107509145A (en) * | 2017-08-29 | 2017-12-22 | 歌尔股份有限公司 | The preparation method of sound-producing device module and sound-producing device module |
| CN110958507A (en) * | 2019-11-22 | 2020-04-03 | 歌尔股份有限公司 | Speaker module and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209390357U (en) * | 2018-12-30 | 2019-09-13 | 瑞声科技(新加坡)有限公司 | Microphone device and electronic equipment |
| WO2021000166A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Speaker module |
| CN110896507B (en) * | 2019-11-28 | 2022-03-15 | 歌尔股份有限公司 | Loudspeaker module |
| CN211744722U (en) * | 2020-03-04 | 2020-10-23 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN113163306A (en) * | 2020-12-31 | 2021-07-23 | 歌尔股份有限公司 | Loudspeaker module |
-
2020
- 2020-12-31 CN CN202011642511.5A patent/CN113163306A/en active Pending
-
2021
- 2021-12-31 CN CN202111674578.1A patent/CN114245275B/en active Active
-
2022
- 2022-05-23 WO PCT/CN2022/094322 patent/WO2023123830A1/en unknown
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| JPH10148181A (en) * | 1996-11-19 | 1998-06-02 | Shinten Sangyo Kk | Air pump |
| CN203378030U (en) * | 2013-07-17 | 2014-01-01 | 瑞声光电科技(常州)有限公司 | A sound-emitting apparatus |
| JP2015078631A (en) * | 2013-10-16 | 2015-04-23 | 富士重工業株式会社 | Device and method for filling fiber |
| CN205202276U (en) * | 2015-11-11 | 2016-05-04 | 北京必洁仕环保新技术开发有限责任公司 | Drift of breathing in |
| CN205356673U (en) * | 2015-12-31 | 2016-06-29 | 歌尔声学股份有限公司 | Loudspeaker module group |
| CN107509145A (en) * | 2017-08-29 | 2017-12-22 | 歌尔股份有限公司 | The preparation method of sound-producing device module and sound-producing device module |
| CN110958507A (en) * | 2019-11-22 | 2020-04-03 | 歌尔股份有限公司 | Speaker module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114245275A (en) | 2022-03-25 |
| WO2023123830A1 (en) | 2023-07-06 |
| CN113163306A (en) | 2021-07-23 |
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