WO2020258229A1 - Boîtier de haut-parleur - Google Patents

Boîtier de haut-parleur Download PDF

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Publication number
WO2020258229A1
WO2020258229A1 PCT/CN2019/093613 CN2019093613W WO2020258229A1 WO 2020258229 A1 WO2020258229 A1 WO 2020258229A1 CN 2019093613 W CN2019093613 W CN 2019093613W WO 2020258229 A1 WO2020258229 A1 WO 2020258229A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
cover
base
absorbing block
absorbing
Prior art date
Application number
PCT/CN2019/093613
Other languages
English (en)
Chinese (zh)
Inventor
陈志臣
蔡斌
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/093613 priority Critical patent/WO2020258229A1/fr
Priority to CN201921005184.5U priority patent/CN210168216U/zh
Publication of WO2020258229A1 publication Critical patent/WO2020258229A1/fr

Links

Classifications

    • 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention relates to the technical field of sound emitting devices, in particular to a speaker box.
  • the speaker box is an important acoustic component of portable electronic equipment to complete the conversion between electrical signals and sound signals.
  • the volume of the cavity of the speaker box becomes smaller and smaller, in order to enable the speaker to exert good performance, reduce the resonance frequency of the module, and improve the sound quality, technicians usually add sound-absorbing materials in the sound-absorbing cavity to absorb some Acoustic energy, so as to achieve the effect of reducing the resonance frequency of the module.
  • the sound-absorbing materials used in the prior art speaker boxes mainly include sound-absorbing cotton foamed block materials and powdered granular materials.
  • a new type of sound-absorbing material has been developed subsequently. Its structure is soft and easily deformed, which makes it not sound-absorbing.
  • the cotton itself is stable in shape. It only needs to be die-cut and mounted without packaging, and it cannot be like powder particles.
  • the powder is filled into the sound-absorbing cavity by using the sound-absorbing cavity enclosed by the insert plate with a grid structure and the side wall of the cover plate. . Therefore, it is necessary to provide a speaker box with a new positioning structure to encapsulate such soft and easily deformable sound-absorbing materials, so as to achieve stable acoustic performance.
  • the purpose of the present invention is to provide a loudspeaker box, which aims to solve the problem that a new type of soft and deformable sound-absorbing material cannot be well encapsulated in the prior art loudspeaker box, which affects the stability of acoustic performance.
  • the present invention provides a loudspeaker box, which includes a cover enclosing a receiving space, and a speaker unit and a sound-absorbing block contained in the receiving space.
  • the sound-absorbing block is formed by stacking a plurality of composite materials.
  • the cover There are a number of protrusions extending toward the accommodating space and located at intervals between the speaker unit and the sound-absorbing block, and the sound-absorbing block is limited to the sound-absorbing formed by the protrusion and the cover. Cavity.
  • each composite material layer is provided with a number of sub-micron holes.
  • the composite material layer is made of Teflon material.
  • the cover body includes an upper cover and a lower cover that are opposed to each other to form the accommodating space
  • the lower cover includes a base
  • an edge of the base extends along a side close to the upper cover to enclose the accommodating space
  • the side wall, the protruding column, the side wall and the base jointly enclose the sound-absorbing cavity.
  • the protruding post is fixed on the base, and the protruding post extends toward the upper cover.
  • the protruding post and the base are integrally formed.
  • the protruding post includes a first wall portion that abuts against the sound-absorbing block together with the side wall, and a second wall portion disposed opposite to the first wall portion and spaced apart from the speaker unit.
  • the width of the end of the first wall portion close to the base is greater than the width of the end of the first wall portion away from the base.
  • a plurality of blocks extending from the base to contact the sound-absorbing block are arranged in the sound-absorbing cavity.
  • the speaker unit divides the housing space into a front cavity and a back cavity opposite to the front cavity, a circulation channel is formed between adjacent protrusions, and the back cavity and the sound-absorbing cavity pass through the The circulation channel is connected.
  • the speaker box of the present invention is provided with spaced protrusions in the accommodating space.
  • the protrusions and the cover confine the sound-absorbing block formed by stacking composite materials in the sound-absorbing cavity formed by the protrusions and the cover to utilize the protrusions. Together with the cover, it defines the position of the sound-absorbing block, which effectively exerts the acoustic effect of the speaker and stabilizes the acoustic performance.
  • Figure 1 is a schematic diagram of the overall structure of a speaker box according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an exploded structure of a speaker box according to an embodiment of the present invention.
  • Fig. 3 is a schematic sectional view of the structure taken along the A-A direction in Fig. 1;
  • FIG. 4 is a schematic diagram of the enlarged structure of area B in FIG. 3;
  • Figure 5 is a schematic diagram of the lower cover structure in Figure 2;
  • FIG. 6 is a schematic diagram of the enlarged structure of the C area in FIG. 5.
  • the speaker box includes a cover 1 enclosing a containing space 2 and a speaker unit 3 and a sound-absorbing block 4 contained in the containing space 2.
  • the sound-absorbing block 4 is formed by stacking a number of composite materials, and each composite material layer is provided There are several sub-micron holes.
  • the composite material layer is made of Teflon material.
  • Teflon is biaxially stretched polytetrafluoroethylene, which is made of polytetrafluoroethylene microporous film laminated with ordinary fabric through a special process
  • the sound-absorbing block 4 made of Teflon material has the characteristics of elasticity, softness and deformation, fragility, non-stickiness, and sliding properties.
  • the cover 1 is provided with a number of protrusions 5 extending into the containing space 2 and located at intervals between the speaker unit 3 and the sound-absorbing block 4, and the sound-absorbing block 4 is limited to the sound-absorbing cavity formed by the protrusions 5 and the cover 1 In 6, the position of the sound-absorbing block 4 is defined by the abutment of the protrusion 5.
  • the cover 1 includes an upper cover 11 and a lower cover 12 that are disposed opposite to each other to form a receiving space 2.
  • the lower cover 12 includes a base 121 and an edge of the base 121 that extends along the side close to the upper cover 11 to form the receiving space 2.
  • the side wall 122, the protruding column 5, the side wall 122 and the base 121 collectively enclose the aforementioned sound-absorbing cavity 6.
  • the sound-absorbing block 4 is located between the side wall 122 and the protruding column 5, and defines the sound-absorbing block 4 in the sound-absorbing cavity 6, using the upper cover 11 and the lower cover 12 are mutually covered, and the sound-absorbing block 4 is stably enclosed in the sound-absorbing cavity 6.
  • the limiting block 5 is fixed on the base 121.
  • the 5 protruding pillars are formed by extending toward the upper cover 11 and perpendicular to the base 121.
  • the protruding pillars 5 and The base 121 is integrally formed to ensure the stability of the protrusion 5.
  • the stud 5 includes a first wall portion 51 that abuts against the sound-absorbing block 4 together with the side wall 122 and a second wall portion 52 that is disposed opposite to the first wall portion 51 and spaced apart from the speaker unit 3.
  • the first wall 51 and the sound absorbing block 4 are closely matched to limit the position of the sound absorbing block 4, and the second wall 52 and the speaker unit 3 are spaced apart from each other to ensure good ventilation.
  • the width of the end of the first wall 51 close to the base 121 is greater than the width of the end of the first wall 51 away from the base 121, and the protrusion 5 is trapezoidal to increase the contact area between the lower end of the protrusion 5 and the sound-absorbing block 4
  • a number of blocks 1211 extending from the base 121 to contact the sound-absorbing block 4 are provided in the sound-absorbing cavity 6 containing the sound-absorbing block 4 to increase the contact area between the base 121 and the sound-absorbing block 4 and enhance the limitation effect.
  • the protrusion 5 may also be fixed on the side of the side wall 122 close to the storage space 2 and be integrally formed with the side wall 122 as long as it can be used to limit the sound-absorbing block 4.
  • the speaker unit 3 divides the accommodating space 2 into a front cavity 21 and a rear cavity 22 opposite to the front cavity 21.
  • a circulation channel 50 is formed between adjacent protrusions 5
  • the rear cavity 22 and the sound-absorbing cavity 6 are communicated through a circulation channel 50, and the several spaced protrusions 5 are arranged in a line to form a fence-like structure, which facilitates the passage of airflow through the circulation channel 50 between the protrusions 5, and has good ventilation.
  • the space occupied by the containing space 10 can be reduced.
  • the speaker box of the present invention is provided with a protrusion 5 in the containing space 2 enclosed by the upper cover 11 and the lower cover 12, so that the protrusion 5, the base 121 and the side wall 122 of the lower cover 12 together form a sound absorption Cavity 6, the sound-absorbing block 4 is placed in the sound-absorbing cavity 6, the position of the sound-absorbing block 4 is defined by the protrusion 5 and the side wall 122 together, and the sound-absorbing block 4 is confined and sealed in the sound-absorbing cavity 6 by assembling the upper cover 11 and the lower cover 12 , Can effectively play the acoustic effect of the speaker box, so that the acoustic performance is stable.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

La présente invention concerne le domaine technique des composants de génération sonore, et l'invention concerne un boîtier de haut-parleur. Le boîtier de haut-parleur comprend un couvercle qui cercle pour former un espace de réception, et une unité de haut-parleur et un bloc d'absorption acoustique logés dans l'espace de réception. Le bloc d'absorption acoustique est formé à partir de couches de matériau composite empilées ensemble. Plusieurs colonnes saillantes disposées à intervalles réguliers sont disposées sur le couvercle, s'étendant vers l'espace d'accueil et positionnées entre l'unité de haut-parleurs et le bloc d'absorption acoustique, et le bloc d'absorption acoustique est limité à l'intérieur d'une chambre d'absorption acoustique formée par les colonnes saillantes et le couvercle. Dans la présente invention, le bloc d'absorption acoustique peut être limité à l'intérieur de la chambre d'absorption acoustique au moyen des colonnes saillantes, ce qui permet d'obtenir efficacement l'effet acoustique du boîtier du haut-parleur et de stabiliser ses performances acoustiques.
PCT/CN2019/093613 2019-06-28 2019-06-28 Boîtier de haut-parleur WO2020258229A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/093613 WO2020258229A1 (fr) 2019-06-28 2019-06-28 Boîtier de haut-parleur
CN201921005184.5U CN210168216U (zh) 2019-06-28 2019-06-30 扬声器箱

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/093613 WO2020258229A1 (fr) 2019-06-28 2019-06-28 Boîtier de haut-parleur

Publications (1)

Publication Number Publication Date
WO2020258229A1 true WO2020258229A1 (fr) 2020-12-30

Family

ID=69795039

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/093613 WO2020258229A1 (fr) 2019-06-28 2019-06-28 Boîtier de haut-parleur

Country Status (2)

Country Link
CN (1) CN210168216U (fr)
WO (1) WO2020258229A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101142847A (zh) * 2005-03-17 2008-03-12 松下电器产业株式会社 扬声器装置
CN101151417A (zh) * 2005-03-30 2008-03-26 松下电器产业株式会社 吸音结构体
US20150358721A1 (en) * 2014-06-04 2015-12-10 AAC Technologies Pte. Ltd. Acoustic device
CN205987336U (zh) * 2016-07-27 2017-02-22 歌尔股份有限公司 扬声器模组
CN108307279A (zh) * 2018-01-29 2018-07-20 瑞声科技(新加坡)有限公司 扬声器箱
CN208971776U (zh) * 2018-10-09 2019-06-11 歌尔科技有限公司 一种扬声器外壳及扬声器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101142847A (zh) * 2005-03-17 2008-03-12 松下电器产业株式会社 扬声器装置
CN101151417A (zh) * 2005-03-30 2008-03-26 松下电器产业株式会社 吸音结构体
US20150358721A1 (en) * 2014-06-04 2015-12-10 AAC Technologies Pte. Ltd. Acoustic device
CN205987336U (zh) * 2016-07-27 2017-02-22 歌尔股份有限公司 扬声器模组
CN108307279A (zh) * 2018-01-29 2018-07-20 瑞声科技(新加坡)有限公司 扬声器箱
CN208971776U (zh) * 2018-10-09 2019-06-11 歌尔科技有限公司 一种扬声器外壳及扬声器

Also Published As

Publication number Publication date
CN210168216U (zh) 2020-03-20

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