CN114885270A - Separating device for fixing acoustic enhancement part and assembling method and application thereof - Google Patents
Separating device for fixing acoustic enhancement part and assembling method and application thereof Download PDFInfo
- Publication number
- CN114885270A CN114885270A CN202110967462.0A CN202110967462A CN114885270A CN 114885270 A CN114885270 A CN 114885270A CN 202110967462 A CN202110967462 A CN 202110967462A CN 114885270 A CN114885270 A CN 114885270A
- Authority
- CN
- China
- Prior art keywords
- acoustic
- loudspeaker
- dimensional
- space
- deformation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005192 partition Methods 0.000 claims description 85
- 239000000463 material Substances 0.000 claims description 39
- 125000006850 spacer group Chemical group 0.000 claims description 30
- 239000003623 enhancer Substances 0.000 claims description 16
- 238000000638 solvent extraction Methods 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920000515 polycarbonate Polymers 0.000 claims description 7
- 239000004417 polycarbonate Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229920000800 acrylic rubber Polymers 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 2
- 229920006362 Teflon® Polymers 0.000 claims description 2
- 239000004984 smart glass Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 25
- 239000002245 particle Substances 0.000 description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 10
- 239000004744 fabric Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 10
- 238000004806 packaging method and process Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 239000012621 metal-organic framework Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- 241000446313 Lamella Species 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Images
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2892—Mountings or supports for transducers
- H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
-
- 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
Abstract
The invention provides a separating device for fixing an acoustic enhancement piece and an assembling method and application thereof, wherein the separating device is assembled in a rear cavity of a loudspeaker, a space for filling the acoustic enhancement piece is formed by the separating device alone or together with other parts of the loudspeaker except the separating device, at least one part of the separating device is air-permeable and acoustically transparent, at least one part of the separating device can be deformed when one or more deformation triggering conditions are applied, and the separating device tightly wraps the acoustic enhancement piece in the space after one or more deformation triggering conditions are applied. The separating device provided by the invention fixes the acoustic enhancement part in a specific space of the rear cavity, and when the structure is assembled in the rear cavity of the loudspeaker of the terminal equipment, the acoustic enhancement part can be filled in the limited rear cavity of the loudspeaker as much as possible so as to further improve the acoustic performance of the loudspeaker; the reliability of the loudspeaker can be greatly improved; the acoustic performance of the loudspeaker can also be improved.
Description
Technical Field
The invention relates to a separating device for fixing an acoustic enhancement part and an assembling method and application thereof, belonging to the technical field of electroacoustic products.
Background
European patent EP2424270 discloses a technique for virtually increasing the back cavity of a speaker by using a zeolite material, which enables the performance of the speaker to be as if the volume of the cavity is enlarged to several times the original volume without changing the volume of the cavity by arranging an acoustic enhancement material having gas absorption and desorption capabilities, such as zeolite, activated carbon, and the like, in the cavity of the speaker. In recent years, the technology has been widely applied to speakers of smart phones, tablet computers, thin and light notebook computers and the like, so that the speaker can achieve better sound performance under the condition of limited volume and space.
At present, the acoustic enhancement material mostly appears in the form of particle microspheres with the diameter of 100-; however, when the acoustic enhancement material is filled in the rear cavity of the loudspeaker, the performance is often reduced due to collision friction between particles and the shell and between particles, and even the loudspeaker is damaged; to this end, the prior art scheme often adopts to add limit structure or adopt ventilative materials such as sound absorption cotton to restrict the acoustic enhancement material granule in a certain region on the speaker casing to avoid the friction of acoustic enhancement material granule, collision inefficacy. However, granule type acoustics reinforcing material is at the in-process of using, even design limit structure or add on the speaker casing and inhale the cotton barrier member after, still can appear the granule breakage, the powder drops and bump noise scheduling problem, the production reason of these some problems is because:
firstly, the shape of the acoustic enhancement material particles and the filling technical limit are limited, specifically, the filling area of the acoustic enhancement material particles in the space of the loudspeaker cavity is difficult to reach 100 percent, namely, the empty space is still provided for the particles in the cavity to move freely;
in addition, when the loudspeaker works, the vibrating diaphragm pushes the air flow, and the air flow pushes the particles again, so that the particles vibrate, and the particles collide with each other and the loudspeaker shell, thereby causing the above conditions.
Therefore, it has become an urgent technical problem in the art to provide a partition device for fixing an acoustic reinforcement, and an assembling method and application thereof.
Disclosure of Invention
To address the above-described shortcomings and drawbacks, it is an object of the present invention to provide a spacer for securing an acoustic enhancement.
It is also an object of the invention to provide a loudspeaker comprising a separating means for fixing an acoustic enhancement as described above.
It is also an object of the present invention to provide a method of assembling a spacer for securing an acoustic enhancement as described above.
It is also an object of the invention to provide an electronic device wherein the above mentioned separating means for fixing an acoustic enhancement member is fitted in the rear cavity of the loudspeaker of the electronic device.
In order to achieve the above object, in one aspect, the present invention provides a partition for fixing an acoustic reinforcement, wherein the partition is fitted in a rear cavity of a speaker, forms a space for filling the acoustic reinforcement alone or together with other parts of the speaker except the partition, and at least one part of the partition is air-permeable and acoustically transparent, and is deformable upon application of one or more deformation triggering conditions, and tightly encloses the acoustic reinforcement in the space upon application of one or more deformation triggering conditions.
As a specific embodiment of the above-mentioned separating device for fixing an acoustic enhancement member according to the present invention, the deformation triggering condition includes, but is not limited to, one or more of mechanical force, temperature, humidity, sound wave, light, current, magnetic field force, chemical atmosphere, air pressure, and the like.
As a specific embodiment of the spacer for fixing an acoustic enhancer as described above, the deformation triggering condition is a heat treatment and/or a mechanical force.
As a specific embodiment of the above-mentioned partition device for fixing the acoustic enhancement member of the present invention, the material of the deformable portion of the partition device includes, but is not limited to, one or more of aluminum, stainless steel, polycarbonate, acrylic rubber, polyethylene, polytetrafluoroethylene, polyvinyl chloride, PET, silicone material, and the like.
As a specific embodiment of the spacer for fixing the acoustic enhancement member according to the present invention, the deformation rate of the spacer is between 2% and 50%.
As a specific embodiment of the partitioning device for fixing an acoustic enhancement member described above according to the present invention, wherein the partitioning device comprises a two-dimensional partitioning device or a three-dimensional partitioning device.
As a specific embodiment of the spacer for fixing an acoustic enhancement member according to the present invention, the two-dimensional spacer has a planar structure and/or a curved structure.
As a specific embodiment of the above-mentioned partition device for fixing an acoustic enhancement member according to the present invention, the three-dimensional partition device is a polyhedron structure or a rotator structure.
In another aspect, the present invention also provides a loudspeaker comprising the above-mentioned partition device for fixing acoustic enhancement, comprising one or more acoustic sensors, one or more housings, one or more partition devices for fixing acoustic enhancement, the one or more acoustic sensors and the one or more housings forming in combination the loudspeaker back cavity, the one or more partition devices for fixing acoustic enhancement fitting in the back cavity, the partition device forming alone or together with other parts of the loudspeaker except the partition device forms a space tightly enclosing the acoustic enhancement in the space.
In a further aspect, the present invention also provides a method of assembling a partition device for fixing an acoustic enhancer as described above, wherein the method of assembling comprises:
filling the acoustic enhancement piece into a space formed by the separating device alone or together with other parts of the loudspeaker except the separating device, achieving an initial assembling state, applying one or more deformation triggering conditions to enable at least one part of the separating device to deform and the deformation rate to reach a target value, and tightly wrapping the acoustic enhancement piece in the space by the separating device to achieve an assembling finished state.
As a specific embodiment of the assembling method of the spacer for fixing acoustic reinforcement according to the present invention, the target value of the deformation rate is between 2% and 50%.
In the invention, the material, the shape, the size, the filling amount and the like of the acoustic enhancement piece can be selected according to application scenes and requirements. In one embodiment of the present invention, the acoustical enhancement member includes, but is not limited to, one or a combination of more of acoustical enhancement particles, acoustical enhancement blocks, acoustical enhancement sheets, acoustical enhancement powders, and the like.
The acoustic enhancer is not specifically required by the present invention, and a person skilled in the art can reasonably select the acoustic enhancer according to actual field operation needs, for example, in a specific embodiment of the present invention, the acoustic enhancer may be an acoustic enhancer with air adsorption property (such as natural zeolite, activated carbon, white carbon black, silica, artificial zeolite, etc.) disclosed in EP2424270, and may also be an acoustic enhancer described in patents with application numbers CN202110280618.8, CN202110279512.6, CN202110116598.0, CN202110116612.7, CN202110324116.0, and CN 202110324117.5.
In a further aspect, the invention also provides an electronic device, wherein the above-mentioned separating device for fixing the acoustic enhancement member is assembled in a rear cavity of a loudspeaker of the electronic device.
As a specific embodiment of the above electronic device of the present invention, the electronic device includes, but is not limited to, a smart phone, a TWS headset, a headset, smart glasses, a smart watch, a tablet computer, a thin notebook computer, or the like.
The separating device for fixing the acoustic enhancement part fixes the acoustic enhancement part in a specific space of the rear cavity, and when the structure is assembled in the rear cavity of the loudspeaker of the terminal equipment, the limited rear cavity of the loudspeaker can be filled with as many acoustic enhancement parts as possible so as to further improve the acoustic performance of the loudspeaker; the vibration collision of the acoustic enhancement piece in the working process of the loudspeaker can be reduced or even avoided, so that the risks of fragmentation and powder falling of the acoustic enhancement piece are reduced, and the reliability of the loudspeaker is greatly improved; noise caused by vibration of the acoustic enhancement member can be eliminated, and acoustic performance of the loudspeaker is improved. The invention can also make the acoustic performance of the rear cavity of the loudspeaker consistent in different orientations, thereby improving the acoustic performance of the terminal equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a loudspeaker.
Fig. 2a and 2b are schematic views of a loudspeaker with a back chamber divider.
Fig. 3a and 3b are schematic views of an embodiment of a back volume separation device and acoustic enhancement particles assembly.
Fig. 4a and 4b are schematic views of an embodiment of a back volume separation device and acoustic enhancement particles assembly.
Detailed Description
The "ranges" disclosed herein are given as lower and upper limits. There may be one or more lower limits, and one or more upper limits, respectively. The given range is defined by the selection of a lower limit and an upper limit. The selected lower and upper limits define the boundaries of the particular range. All ranges defined in this manner are combinable, i.e., any lower limit can be combined with any upper limit to form a range. For example, ranges of 60-120 and 80-110 are listed for particular parameters, with the understanding that ranges of 60-110 and 80-120 are also contemplated. Further, if the minimum range values listed are 1 and 2 and the maximum range values listed are 3, 4, and 5, then the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5.
In the present invention, unless otherwise stated, the numerical range "a-b" represents a shorthand representation of any combination of real numbers between a and b, where a and b are both real numbers. For example, a numerical range of "0 to 5" indicates that all real numbers between "0 to 5" have been listed herein, and "0 to 5" is only a shorthand representation of the combination of these numbers.
In the present invention, all embodiments and preferred embodiments mentioned herein may be combined with each other to form a new technical solution, if not specifically stated.
In the present invention, all the technical features mentioned herein and preferred features may be combined with each other to form a new technical solution, if not specifically stated.
In the present invention, the term "comprising" as used herein means either an open type or a closed type unless otherwise specified. For example, the term "comprising" may mean that other materials and/or elements not listed may also be included, or that only the listed materials and/or elements may be included.
In order to clearly understand the technical features, objects and advantages of the present invention, the following detailed description of the technical solutions of the present invention will be made with reference to the following specific examples, which should not be construed as limiting the implementable scope of the present invention.
Fig. 1 is a schematic diagram of a loudspeaker. In some embodiments, the speaker 100 includes an acoustic sensor 110, an upper speaker housing 120, and a lower speaker housing 130. The acoustic sensor 110 is used to perform the conversion of electrical energy to acoustic energy. The acoustic sensor 110 is fixedly connected to the opening of the upper speaker housing 120, and the sound transmission between the acoustic sensor 110 and the external space can be realized, and the connection manner includes, but is not limited to, bonding, fastener connection, plug-in connection and the like. The upper speaker housing 120 includes an opening and is fixedly connected to the lower speaker housing 130 by means including, but not limited to, bonding, welding, fastening, plugging, etc. Acoustic sensor 110, upper speaker housing 120, and lower speaker housing 130 enclose a back volume 140 that forms speaker 100.
Fig. 2a and 2b are schematic views of a loudspeaker with a back volume separation device. Figure 2a is a schematic view of a loudspeaker with a two-dimensional back volume partition. Figure 2b is a schematic view of a loudspeaker with a three-dimensional back volume partition.
In some embodiments, speaker 100 also includes one or more two-dimensional back volume dividers 210. A two-dimensional back volume divider 210 fits into the back volume of the loudspeaker 100. The two-dimensional back volume divider 210 enables and only enables spatial separation of the back volume 140 by cooperation with at least one other component of the loudspeaker 100 other than the divider. In some embodiments, a two-dimensional back volume divider 210 is fixedly coupled to the upper speaker housing 120 and the lower speaker housing 130, respectively, to divide the back volume 140 into a first space 141 and a second space 142. In some embodiments, the two-dimensional back volume divider 210 may be fixedly attached to only the upper speaker housing 120 or the lower speaker housing 130, dividing the back volume 140 into the first space 141 and the second space 142. The two-dimensional back volume partition 210 is acoustically transparent and does not affect the flow of air between the first space 141 and the second space 142. In some embodiments, the two-dimensional posterior chamber partition 210 may be planar. In some embodiments, the two-dimensional posterior chamber partition 210 may be curved. In some embodiments, the two-dimensional posterior chamber partition 210 may be a combination of planar and curved surfaces. In some embodiments, the two-dimensional posterior chamber partition 210 may be a flexible material. In some embodiments, the two-dimensional posterior chamber partition 210 may be a rigid material. In some embodiments, the two-dimensional posterior chamber partition 210 may be a combination of flexible and rigid materials. An acoustic enhancer may be filled in the first space 141 to improve the bass performance of the speaker 100. The acoustical enhancement device includes a gas adsorbing material, such as a combination of one or more of molecular sieves, activated carbon, porous metal oxides, porous Metal Organic Frameworks (MOFs), and the like.
In some embodiments, speaker 100 also includes one or more three-dimensional back volume dividers 220. A three-dimensional back volume divider 220 fits within the back volume of the speaker 100. The three-dimensional posterior chamber partition 220 alone may accomplish the spatial partitioning of the posterior chamber 140. A three-dimensional posterior chamber partition 220 may be secured within the posterior chamber 140. In some embodiments, the three-dimensional posterior chamber partition 220 is secured within the posterior chamber 140 by one or more of, but not limited to, hooks, slots, gaskets, adhesive, and the like. At least a portion of the three-dimensional back volume partition 220 is acoustically transparent (i.e., acoustically transparent) and does not affect the flow of air between the first space 141 and the second space 142. In some embodiments, the three-dimensional posterior chamber partition 220 may be a polyhedron, e.g., a hexahedron. In some embodiments, the three-dimensional posterior chamber partition 220 may be a body of revolution, such as a sphere. In some embodiments, the three-dimensional posterior chamber partition 220 may be a flexible material. In some embodiments, the three-dimensional posterior chamber partition 220 may be a rigid material. In some embodiments, the three-dimensional posterior chamber partition 220 may be a combination of flexible and rigid materials. An acoustic enhancer may be filled in the first space 141 to improve the bass performance of the speaker 100. The acoustical enhancement device includes a gas adsorbing material, such as a combination of one or more of molecular sieves, activated carbon, porous metal oxides, porous Metal Organic Frameworks (MOFs), and the like.
Fig. 3a and 3b are schematic views of an embodiment of a back volume separation device and acoustic enhancement particles assembly. Figure 3a shows an initial state of assembly of the acoustic enhancement member in a two-dimensional posterior chamber partition 210. Fig. 3b shows the completed state of the assembly of the acoustic enhancement member in the two-dimensional rear chamber partition 210 described above.
The two-dimensional back space divider 210 may be fixedly coupled to other portions of the speaker 100 except for the back space divider to form the second space 142. Other portions of the speaker 100 other than the back volume separation device include, but are not limited to, one or more combinations of enclosures, ribbed walls, acoustic sensors, and the like. In some embodiments, the two-dimensional back volume divider 210 is fixedly coupled to the interior of the enclosure of the loudspeaker 100 to form the second volume 142. At least a portion of the two-dimensional posterior chamber partition 210 is air permeable and acoustically transparent. In addition to the air-permeable and acoustically transparent portion, the remainder of the two-dimensional back volume partition 210 may be air-permeable, air-impermeable, acoustically transparent, or acoustically opaque. At least a portion of the two-dimensional posterior chamber partition 210 may deform under one or more deformation triggering conditions. The material of the deformable portion of the two-dimensional posterior chamber partition 210 includes, but is not limited to, one or more of aluminum, stainless steel, Polycarbonate (PC), acrylic rubber, polyethylene, teflon, polyvinyl chloride, PET, silicone material, and the like. The second space 142 is filled with a plurality of acoustic enhancement members 310 to an initial state of assembly. In some embodiments, the thickness of the two-dimensional posterior chamber partition 210 is between 0.04-0.2mm in the initial state of assembly, i.e., when one or more deformation triggering conditions are not applied. The acoustic enhancer 310 is a porous structural member having adsorption properties, and can easily adsorb and desorb gas molecules. The filling amount of the acoustic enhancer 310 in the second space 142 is 70% -97%. The material, shape, size, amount of filling, etc. of the acoustic enhancement 310 can be selected according to the application scenario and requirements. In some embodiments, the acoustic enhancer 310 is granular. In some embodiments, at least one portion of the two-dimensional posterior chamber partition 210 may be made air permeable by providing a plurality of air permeable pores in the at least one portion. The opening density, the arrangement mode, the shape, the number and the like of the air holes can be selected according to application scenes and requirements. In some embodiments, the vent may be a round hole, a square hole, an elongated hole, or the like. In some embodiments, the air holes may be uniformly distributed or non-uniformly distributed. The maximum pore size of the air permeable portion of the two-dimensional back volume partition 210 is smaller than the monolithic size of the acoustic enhancement member 310 to ensure that the acoustic enhancement member 310 can be retained within the second space 142.
In the initial state of assembly, one or more deformation triggering conditions are applied to the two-dimensional posterior chamber partition 210. The deformation triggering conditions include, but are not limited to, a combination of one or more of mechanical force, temperature, humidity, sound wave, light, electric current, magnetic field force, chemical atmosphere, air pressure, and the like. When the two-dimensional posterior chamber partition 210 is deformed to a certain extent, the one or more deformation triggering conditions are removed. In some embodiments, the degree of deformation of the two-dimensional posterior chamber partition 210 is determined by the value of the change in internal volume of the second space 142 according to equation 1.1 below.
In equation 1.1, a represents the deformation rate of the two-dimensional rear cavity partition 210, Δ V represents the change value of the internal volume of the second space 142, and V 0 Representing the internal volume of the second space 142 in the initial state of assembly. When the internal volume of the second space 142 becomes small, Δ V is a positive value. In some embodiments, the deformation rate of the two-dimensional posterior chamber partition 210 is between 2% -50%. The control of the deformation direction of the deformation portion of the two-dimensional posterior chamber partition 210 may be performed in various ways, including but not limited to one or more combinations of shape design, material selection, trigger condition application location, multiple trigger condition combinations, and the like. In some embodiments, the two-dimensional back cavity partition 210 may control the deformation direction of the deformation portion by one or more of the combination of device size, appearance of different portions, shape of seams of different portions, shape of weld openings, and the like. In some embodiments, the two-dimensional posterior chamber partition 210 can be formed by one or more of using different materials for the inner and outer sides of the deformation, using different materials for the center and extension of the deformation, and so onThe combination of (a) and (b) controls the direction of deformation of the deformed portion. In some embodiments, the two-dimensional posterior chamber partition 210 may control the direction of deformation of the deformed portion by applying a trigger condition on only a single side of the deformed portion. In some embodiments, the two-dimensional posterior chamber partition 210 may control the direction of deformation of the deformed portion by applying other triggering conditions while applying mechanical force at specific locations and/or specific sides of the deformed portion. After the deformation is completed, the maximum pore size of the air permeable portion of the two-dimensional back volume partition 210 is still smaller than the single size of the acoustic enhancement member 310 to ensure that the acoustic enhancement member 310 can be always maintained within the second space 142.
In some embodiments, the two-dimensional back volume partition 210 reaches a fully assembled state upon removal of one or more deformation triggering conditions. In some embodiments, after one or more deformation triggering conditions are removed, the two-dimensional posterior chamber partition 210 may need to undergo a stabilization period to reach the assembled state. In some embodiments, two-dimensional back volume divider 210 is placed into service in loudspeaker 100 in a fully assembled state. During the use of the loudspeaker 100, the two-dimensional back cavity separating device 210 may be changed in shape twice to finally achieve a desired use state.
The two-dimensional back space divider 210, in an assembled/satisfactory use state, tightly encloses the plurality of acoustic enhancements 310 in the second space 142, and the plurality of acoustic enhancements 310 are press-fitted to each other, to the plurality of acoustic enhancements 310, to the two-dimensional back space divider 210, and to one or more walls forming the second space 142. The fixed position of a plurality of acoustic enhancement pieces 310 in second space 142 has effectively reduced or even eliminated the broken powder that falls that the collision brought, has fully improved the life of acoustic enhancement piece 310, has eliminated the noise in the speaker use. The fixed position of the plurality of acoustic enhancement members 310 also enables the acoustic performance of the speaker back cavity to be consistent in different orientations, thereby improving the acoustic performance of the terminal device.
Fig. 4a and 4b are schematic views of an embodiment of a back volume separation device and acoustic enhancement particles assembly. Figure 4a shows an initial state of assembly of the acoustic enhancement member in a three-dimensional posterior chamber partition 220. Fig. 4b shows the completed state of the assembly of the acoustic enhancement member in the aforementioned three-dimensional rear chamber partition means 220.
In some embodiments, the three-dimensional posterior chamber partition 220 directly forms the second space 142. At least a portion of the three-dimensional posterior chamber partition 220 is air permeable and acoustically transparent. In some embodiments, the three-dimensional posterior chamber partition 220 may be entirely air permeable and acoustically transparent. In addition to the air permeable and acoustically transparent portion, the remainder of the three-dimensional rear cavity divider 220 may be air permeable, air impermeable, acoustically transparent, or acoustically opaque. At least a portion of the three-dimensional posterior chamber partition 220 may be deformed under one or more deformation triggering conditions. In some embodiments, all of the three-dimensional posterior chamber partition 220 is deformable. The material of the deformable portion of the three-dimensional posterior chamber partition 220 includes, but is not limited to, one or more of aluminum, stainless steel, Polycarbonate (PC), acrylic rubber, polyethylene, polytetrafluoroethylene, polyvinyl chloride, PET, silicone material, and the like. The three-dimensional back volume divider 220 may be secured to the back volume 140 of the speaker 100 by one or more means including, but not limited to, adhesive, hooks, slots, pads, elastomeric/expandable coatings, screens, and the like. The second space 142 is filled with a plurality of acoustic enhancement members 310 to an initial state of assembly. In some embodiments, the thickness of the portions of the three-dimensional posterior chamber partition 220 in the initial state of assembly, i.e., without the application of one or more deformation triggers, is between 0.04-0.2 mm. The acoustic enhancer 310 is a porous structural member having adsorption properties, and can easily adsorb and desorb gas molecules. The filling amount of the acoustic enhancer 310 in the second space 142 is 70% -97%. The material, shape, size, amount of filling, etc. of the acoustic enhancement 310 can be selected according to the application scenario and requirements. In some embodiments, the acoustic enhancer 310 is granular. In some embodiments, at least one portion of the two-dimensional posterior chamber partition 210 may be made air permeable by providing a plurality of air permeable pores in the at least one portion. The opening density, the arrangement mode, the shape, the number and the like of the air holes can be selected according to application scenes and requirements. In some embodiments, the vent may be a round hole, a square hole, an elongated hole, or the like. In some embodiments, the air holes may be uniformly distributed or non-uniformly distributed. The maximum pore size of the air permeable portion of the three-dimensional back volume partition 220 is smaller than the monolithic size of the acoustic enhancement member 310 to ensure that the acoustic enhancement member 310 can be retained within the second space 142.
In the initial state of assembly, one or more deformation triggering conditions are applied to the three-dimensional posterior chamber partition 220. In some embodiments, the three-dimensional back volume divider 220 is loaded into the loudspeaker 100 in an initial state of assembly and then subjected to one or more deformation triggering conditions to achieve a completed state of assembly. In some embodiments, the three-dimensional back volume divider 220 is loaded with one or more deformation triggers in an initial assembly state to a completed assembly state and then loaded into the speaker 100. The deformation triggering conditions include, but are not limited to, a combination of one or more of mechanical force, temperature, humidity, sound wave, light, electric current, magnetic field force, chemical atmosphere, air pressure, and the like. When the three-dimensional back space divider 220 is deformed to a certain extent, one or more of the deformation triggering conditions are removed. In some embodiments, the degree of deformation of the three-dimensional rear cavity divider 220 is determined by the change in internal volume of the second space 142 according to the following equation 1.2.
In equation 1.2, B represents the deformation rate of the three-dimensional rear cavity partition device 220, Δ V represents the change value of the internal volume of the second space 142, and V 0 Representing the internal volume of the second space 142 in the initial state of assembly. When the internal volume of the second space 142 becomes small, Δ V is a positive value. In some embodiments, the three-dimensional posterior chamber partition 220 has a deformation rate of between 2% and 50%. The deformation direction of the deformation part in the three-dimensional back cavity separation device 220 can be controlled in various ways, including but not limited to one or more combinations of shape design, material selection, trigger condition application position, multiple trigger condition combinations, and the like. In some embodiments, the three-dimensional posterior chamber is compartmentalizedThe device 220 can control the deformation direction of the deformation part by one or more modes of combination of device size, appearance shape of different parts, shape of seam of different parts, shape of welding opening and the like. In some embodiments, the three-dimensional back cavity separating device 220 may control the deformation direction of the deformation portion by using one or more of different materials for the inner side and the outer side of the deformation portion, different materials for the center of the deformation portion, and different materials for the extension portion. In some embodiments, the three-dimensional posterior chamber partition 220 may control the direction of deformation of the deformed portion by applying a trigger condition on only a single side of the deformed portion. In some embodiments, the three-dimensional posterior chamber partition 220 can control the direction of deformation of the deformed portion by applying other triggering conditions while applying mechanical force at specific locations and/or specific sides of the deformed portion. After the deformation is completed, the maximum pore size of the air permeable portion of the three-dimensional back volume partition 220 is still smaller than the single size of the acoustic enhancement member 310 to ensure that the acoustic enhancement member 310 can be always maintained in the second space 142.
In some embodiments, the three-dimensional posterior chamber partition 220 reaches a fully assembled state upon removal of one or more deformation triggering conditions. In some embodiments, after removal of one or more deformation triggering conditions, the three-dimensional posterior chamber partition 220 may need to undergo a stabilization period to reach the assembled state. In some embodiments, the three-dimensional back volume divider 220 is placed into service in the speaker 100 in the assembled state. During the use of the loudspeaker 100, the form of the three-dimensional rear cavity divider 220 may be changed twice, so as to finally achieve a satisfactory use state.
The three-dimensional back space divider 220 tightly encloses the plurality of acoustic enhancements 310 in the second space 142 in an assembled/satisfactory use state, and the plurality of acoustic enhancements 310 are press-fitted to each other and to the three-dimensional back space divider 220 and to the one or more walls forming the second space 142. The fixed position of a plurality of acoustic enhancement pieces 310 in second space 142 has effectively reduced or even eliminated the broken powder that falls that the collision brought, has fully improved the life of acoustic enhancement piece 310, has eliminated the noise in the speaker use. The fixed position of the plurality of acoustic enhancement members 310 also enables the acoustic performance of the speaker back cavity to be consistent in different orientations, thereby improving the acoustic performance of the terminal device.
Example 1
The present embodiments provide a spacer for fixing an acoustic enhancement, wherein the spacer is manufactured and assembled with the acoustic enhancement by the following process:
stainless steel grids and aluminum plates with the thickness of 0.1mm are selected as base materials, and the base materials are manufactured into a cubic container with the internal volume of 9.9mm multiplied by 9.9mm by using the technologies of stamping, welding and the like, wherein at least one surface is a stainless steel grid surface, and the side length of a single grid hole in the stainless steel grid is 180 mu m. Filling zeolite particles (with the particle size of 200-400 mu m) as much as possible into the container, wherein the final filling amount is 0.86cc, and then packaging to reach an initial assembly state.
And applying mechanical force in any one or more of the three axial directions of the container to enable one or more surfaces of the container to be inwards sunken, so that compact packaging of the inner zeolite particles is realized, and the assembly completion state is reached. The apparent volume of the container in the assembled state is 0.87cm 3 The deformation rate of the spacer was 10%, i.e. 10% shrinkage.
Example 2
The present embodiments provide a spacer for fixing an acoustic enhancement, wherein the spacer is manufactured and assembled with the acoustic enhancement by the following process:
making heat-shrinkable PET mesh cloth with thickness of 0.1mm into bag-shaped container with length and width of 12cm × 12cm and aperture of 1.5 cm; the container is laid down in the inner surface of a cylindrical mould. Filling a container with activated carbon granules (particle diameter of 2cm) as much as possible, and packaging to give a container with an apparent volume of 370cm 3 And the initial assembly state is achieved.
Heat treating the packaged bag-shaped container and the mold at 110 deg.C for 20min to make the side walls of the container concave inwards to realize compact wrapping of the activated carbon particlesAnd then demolded to achieve the assembly completion state. The apparent volume of the container in the assembled state is 264cm 3 The deformation rate of the spacer is about 30%, i.e. about 30% shrinkage.
Example 3
The present embodiments provide a spacer for fixing an acoustic enhancement, wherein the spacer is manufactured and assembled with the acoustic enhancement by the following process:
taking a polypropylene rubber mesh cloth with the thickness of 0.1mm, the length and the width of the polypropylene rubber mesh cloth are 10mm multiplied by 10mm, and the aperture is 350 mu m; the mesh cloth is bonded on the rear cavity wall of the loudspeaker to form a limited space together with the rear cavity wall. Filling porous metal oxide lamella (lamella shortest side length 400- & ltmu.m & gt 600 mu m) as much as possible into a limited space, wherein the final filling amount is 0.95cc, and then packaging, wherein the apparent volume of the limited space is about 1cm after packaging by the thickness of the lamella 3 And the initial state of assembly is reached.
And (3) carrying out ultraviolet irradiation treatment on the rear cavity of the loudspeaker for 20min to enable the screen cloth to be sunken into the limited space so as to realize compact packaging of the internal porous metal oxide sheet layer and achieve the state of finished assembly. The apparent volume of the defined space in the assembled state is 0.98cm 3 The deformation rate of the spacer was 2%, i.e. 2% shrinkage.
Example 4
The present embodiments provide a spacer for fixing an acoustic enhancement, wherein the spacer is manufactured and assembled with the acoustic enhancement by the following process:
taking a PC grid plate with the thickness of 0.2mm, the length and the width of the PC grid plate are 10.2mm multiplied by 10.2mm, and the aperture is 550 mu m; the mesh cloth is bonded on the rear cavity wall of the loudspeaker to form a limited space together with the rear cavity wall. Filling zeolite particles (particle diameter of 600-800 μm) as much as possible into a limited space with a final filling amount of 0.84cc, and then encapsulating, wherein the apparent volume of the limited space after encapsulation is about 1.09cm 3 And the initial state of assembly is reached.
Applying an inward mechanical force to the PC mesh plate from outside the confined space, and simultaneously performing heat treatment at 130 deg.C for 30min to the rear cavity of the speaker to make each side of the containerThe walls are recessed inwardly to effect a tight wrap of the interior zeolite particles to a condition of complete assembly. The apparent volume of the defined space in the assembled state is 0.86cm 3 The deformation rate of the spacer was 21%, i.e. the shrinkage was 21%.
Example 5
The present embodiments provide a spacer for fixing an acoustic enhancement, wherein the spacer is manufactured and assembled with the acoustic enhancement by the following process:
selecting 0.1mm thick polyethylene mesh cloth and an aluminum plate as base materials, and using the techniques of stamping, welding and the like to jointly manufacture the mesh cloth and the aluminum plate into a cubic container with the internal volume of 5mm multiplied by 40mm, wherein at least one surface is the polyethylene mesh cloth, and the side length of a single mesh hole in the polyethylene mesh cloth is 250 mu m. Filling zeolite particles (with the particle size of 300-600 mu m) as much as possible into the cubic container, wherein the final filling amount is 0.49cc, and then packaging to reach an initial assembly state.
And applying mechanical force to any one or more aluminum plate surfaces of the container to enable one or more surfaces of the container to be inwards concave, so that compact packaging of the inner zeolite particles is realized, and the assembled state is achieved. The apparent volume of the container in the assembled state is 0.52cm 3 The deformation rate of the spacer was 48%, i.e. 48% shrinkage.
Test example 1
The combination of the separating device and the acoustic enhancement member provided in example 1 is assembled and packaged in a rear cavity of a test speaker, and then the speaker is tested for acoustic performance (F0), particle impact noise, drop test powder falling and the like, wherein the tests are performed by using methods conventional in the art, for example, the specific test method for acoustic performance can be referred to the "measurement of electrical impedance" method shown in paragraph 0049 and 0054 of chinese patent CN 105049997A. In this test example, 1115 speaker units (i.e., 15mm × 15mm in size) were used for the test speaker, and the volume of the rectangular back cavity was 1.5cc, and the test results are shown in table 1 below.
Test example 2
The separation device and the acoustic enhancement member provided in example 4 are assembled and packaged in the rear cavity of a test speaker, and then the speaker is tested for acoustic performance (F0), particle impact noise, drop test powder falling and the like, wherein the tests are performed by using conventional methods in the art, for example, the specific test method for acoustic performance can be referred to the "measurement of electrical impedance" method shown in paragraph 0049 and 0054 of chinese patent CN 105049997A. The test speaker in this test example was the same as that in test example 1, and the test results were as shown in table 1 below.
Comparative test example
The same test speaker as in test example 1 was used, and a defined space having a volume of 1cc was provided in the rear chamber of the speaker acoustically coupled to the speaker cell. As many zeolite particles as possible were poured into the confined space, with a final fill volume of 0.8 cc. And packaging after filling. And then testing the acoustic performance (F0), particle impact noise, drop test powder falling and the like of the loudspeaker, wherein the tests are all carried out by adopting the conventional method in the field, for example, the specific test method of the acoustic performance can refer to the method of measuring the electrical impedance shown in paragraph 0049 & 0054 in CN 105049997A. The test speakers in this comparative test example were the same as those in test example 1, and the test results were as shown in table 1 below.
TABLE 1
As can be seen from table 1 above, compared to the conventional mounting form of the acoustic enhancement member in the rear cavity of the speaker in the prior art, the partition device provided by the embodiment of the present invention is applied to the mounting of the acoustic enhancement member in the rear cavity of the speaker, 1) the embodiment of the present invention can fill more acoustic enhancement members in the same rear cavity of the speaker; 2) the embodiment of the invention has no conditions of particle collision noise, powder falling and the like; 3) the acoustic performance of embodiments of the present invention is significantly superior to acoustic enhancement particle assemblies currently conventional in the art.
In summary, the partition device for fixing the acoustic enhancement member provided by the embodiment of the present invention fixes the acoustic enhancement member in a specific space of the rear cavity, and when the structure is assembled in the speaker rear cavity of the terminal device, it is not only possible to fill as many acoustic enhancement members as possible in the limited speaker rear cavity to further improve the acoustic performance of the speaker; the vibration collision of the acoustic enhancement piece in the working process of the loudspeaker can be reduced or even avoided, so that the risks of fragmentation and powder falling of the acoustic enhancement piece are reduced, and the reliability of the loudspeaker is greatly improved; noise caused by vibration of the acoustic enhancement member can be eliminated, and acoustic performance of the loudspeaker is improved. The embodiment of the invention can also ensure that the acoustic performance of the rear cavity of the loudspeaker is consistent in different orientations, thereby improving the acoustic performance of the terminal equipment.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features and the technical inventions of the present invention, the technical features and the technical inventions, and the technical inventions can be freely combined and used.
Claims (12)
1. A partitioning device for holding acoustic enhancements, wherein said partitioning device is fitted in a back volume of a loudspeaker, forming alone or together with other parts of said loudspeaker than said partitioning device a space for housing acoustic enhancements, at least one part of said partitioning device being air permeable and acoustically transparent, at least one part of said partitioning device being deformable upon application of one or more deformation triggering conditions, said partitioning device tightly enclosing acoustic enhancements in said space upon application of one or more deformation triggering conditions.
2. The spacer for securing an acoustic enhancer of claim 1, wherein the deformation triggering condition comprises a combination of one or more of mechanical force, temperature, humidity, sound wave, light, electrical current, magnetic field force, chemical atmosphere, air pressure.
3. A spacer for securing acoustic enhancements according to claim 1, wherein the material of the deformable portion of the spacer comprises a combination of one or more of aluminium, stainless steel, polycarbonate, acrylic rubber, polyethylene, teflon, polyvinyl chloride, PET, silicone materials.
4. A spacer for securing an acoustic enhancement according to claim 1 wherein the spacer has a deformation rate of between 2% and 50%.
5. A partitioning device for fixing an acoustic enhancement according to claim 1, wherein said partitioning device comprises a two-dimensional partitioning device or a three-dimensional partitioning device.
6. A partition device for fixing an acoustic enhancement according to claim 5, wherein the two-dimensional partition device is a planar structure and/or a curved structure.
7. A partition device for fixing an acoustic enhancement according to claim 5, characterized in that the three-dimensional partition device is a polyhedron structure or a rotator structure.
8. A loudspeaker comprising a partition for holding acoustic enhancements as claimed in any one of claims 1 to 7, comprising one or more acoustic sensors, one or more housings, one or more partitions for holding acoustic enhancements, the one or more acoustic sensors in combination with the one or more housings forming the back volume of the loudspeaker, the one or more partitions for holding acoustic enhancements fitting within the back volume, the partitions forming alone or together with other parts of the loudspeaker than the partitions tightly enveloping the acoustic enhancements in the volume.
9. A method of assembling a spacer for securing an acoustic enhancement device according to any one of claims 1 to 7, wherein the method of assembling comprises:
filling the acoustic enhancement piece into a space formed by the separating device alone or together with other parts of the loudspeaker except the separating device, achieving an initial assembling state, applying one or more deformation triggering conditions to enable at least one part of the separating device to deform and the deformation rate to reach a target value, and tightly wrapping the acoustic enhancement piece in the space by the separating device to achieve an assembling finished state.
10. A method of assembling a spacer for securing acoustic enhancements, as claimed in claim 9, wherein the targeted value of the deformation rate is between 2% -50%.
11. An electronic device, characterized in that a separating means for fixing an acoustic enhancement member according to any one of claims 1-7 is fitted in a rear chamber of a speaker of the electronic device.
12. The electronic device of claim 11, wherein the electronic device comprises a smartphone, a TWS headset, a headset, smart glasses, a smart watch, a tablet, or a thin laptop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967462.0A CN114885270A (en) | 2021-08-23 | 2021-08-23 | Separating device for fixing acoustic enhancement part and assembling method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967462.0A CN114885270A (en) | 2021-08-23 | 2021-08-23 | Separating device for fixing acoustic enhancement part and assembling method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114885270A true CN114885270A (en) | 2022-08-09 |
Family
ID=82667076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110967462.0A Pending CN114885270A (en) | 2021-08-23 | 2021-08-23 | Separating device for fixing acoustic enhancement part and assembling method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114885270A (en) |
-
2021
- 2021-08-23 CN CN202110967462.0A patent/CN114885270A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2396481B1 (en) | Enclosing adsorbent material | |
| CN210579179U (en) | Audio speaker, filler and expandable material | |
| US9712913B2 (en) | Acoustic sound adsorption material having attached sphere matrix | |
| CN110418263B (en) | Audio speaker with rigid suction insert | |
| US9648403B2 (en) | Packaging of acoustic volume increasing materials for loudspeaker devices | |
| CN107852551B (en) | Case for mobile device | |
| WO2019161700A1 (en) | Speaker module and electronic device | |
| CN107592973A (en) | Audio tweeter with the back cavity comprising sorbing material | |
| CN113613778B (en) | Cavities and active regions | |
| WO2021000166A1 (en) | Speaker module | |
| CN114885270A (en) | Separating device for fixing acoustic enhancement part and assembling method and application thereof | |
| WO2021000177A1 (en) | Loudspeaker module | |
| US11671745B2 (en) | Headphone earcup with adsorptive material | |
| CN111510818B (en) | Sound production device module and electronic equipment | |
| CN217607923U (en) | Audio device and electronic terminal equipment | |
| CN114885269A (en) | Expandable acoustic reinforcement part and manufacturing method and application thereof | |
| CN111131575B (en) | Sound generating device module and electronic product | |
| TWI786037B (en) | Integrated loudspeaker device having an acoustic chamber containing sound adsorber material | |
| TW202241141A (en) | Integrated loudspeaker device having an acoustic chamber containing sound adsorber material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: No. 7, Songlinshan Road, Dagang, Zhenjiang New District, Zhenjiang City, Jiangsu Province, 212006 Applicant after: Zhenjiang best new material Co.,Ltd. Address before: 33 Yangzijiang Road, Dagang, New District, Zhenjiang City, Jiangsu Province Applicant before: Zhenjiang Best New Material Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |