WO2022006953A1 - Caisson de haut-parleur - Google Patents

Caisson de haut-parleur Download PDF

Info

Publication number
WO2022006953A1
WO2022006953A1 PCT/CN2020/102382 CN2020102382W WO2022006953A1 WO 2022006953 A1 WO2022006953 A1 WO 2022006953A1 CN 2020102382 W CN2020102382 W CN 2020102382W WO 2022006953 A1 WO2022006953 A1 WO 2022006953A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
cavity
absorbing cavity
casing
absorbing
Prior art date
Application number
PCT/CN2020/102382
Other languages
English (en)
Chinese (zh)
Inventor
丁健华
吴树文
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
Publication of WO2022006953A1 publication Critical patent/WO2022006953A1/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 present application relates to the technical field of acoustic devices, and in particular, to a speaker box.
  • the speaker in the prior art is glued with the shell of the speaker box through a plastic ring, and then the isolation net and the plastic ring are glued to cover the speaker monomer, forming a fully filled monomer isolation solution, thereby reducing the speaker resonance frequency F0, Improve the distortion and improve the sound quality of the speaker box, but this solution has many gluing steps, which affects the assembly efficiency of the speaker box.
  • the purpose of the present application is to provide a speaker box in which the air-permeable isolation net is directly connected to the side of the casing to form an isolation solution for the speaker unit.
  • a speaker box includes a housing with a housing space, and a speaker unit that is housed and fixed in the housing, and the speaker unit divides the housing space into a front acoustic cavity and a rear acoustic cavity , one end of the casing is open, and the speaker box further comprises a convex ring fixed on the casing on one side of the opening, sandwiched and fixed between the convex ring and the casing and covering the opening
  • the air-permeable isolation net, and a sound-absorbing cavity cover that is covered on the side of the convex ring away from the breathable isolation net and is enclosed with the breathable isolation net to form a sound-absorbing cavity, and the sound-absorbing cavity is provided with a sound-absorbing material
  • the shell and the sound-absorbing cavity cover are arranged at intervals on both sides of the convex ring; the rear sound cavity is communicated with the sound-absorbing cavity through the air-permeable isolation net.
  • the casing and the sound absorbing cavity cover are arranged side by side and the orthographic projections of the casing and the sound absorbing cavity cover do not overlap.
  • the housing includes a top wall, a side wall extending from the periphery of the top wall, and a bottom wall covering the side wall and enclosing the top wall to form the receiving space; the opening is opened on the side wall.
  • the housing includes a support wall extending from the top wall to the bottom wall, the support wall and the air-permeable isolation net are arranged at intervals; the speaker unit is supported and fixed on the support wall and is The front acoustic cavity is formed spaced from the top wall.
  • the side wall of the casing adjacent to or opposite to the opening forms a sound outlet channel connecting the front acoustic cavity and the outside world
  • the speaker box further includes covering the sound outlet channel away from the outside.
  • a through hole is formed through the side wall of the casing adjacent to or opposite to the opening, and the speaker box further includes a circuit for electrically connecting the speaker unit and an external circuit through the through hole plate.
  • the breathable isolation mesh is injection-molded or bonded to the raised ring.
  • a filling hole is opened on the sound-absorbing cavity cover, the filling hole is communicated with the sound-absorbing cavity, and the sound-absorbing material is filled into the sound-absorbing cavity through the filling hole.
  • the sound-absorbing cavity cover is provided with a leak hole penetrating the sound-absorbing cavity cover and a breathable mesh cloth attached to the side of the sound-absorbing cavity cover away from the sound-absorbing cavity and covering the leak hole;
  • the The speaker unit is provided with a leaking part, and the leaking part is communicated with the leaking hole through the rear acoustic cavity, the air-permeable isolation net and the sound-absorbing cavity in sequence.
  • the speaker unit includes a basin frame, a vibration system and a magnetic circuit system are fixedly supported on opposite sides of the basin frame, and the magnetic circuit system includes a magnetic bowl, and the magnetic bowl is spaced from the basin frame.
  • the leakage portion is provided to be formed.
  • the beneficial effect of the present application is that: by setting an opening at one end of the shell, and directly abutting the air-permeable isolation net on the opening through the convex ring, the isolation of the single unit is realized, on the one hand, the overall structure of the speaker box is simplified, and on the other hand, the Compared with the existing isolation scheme of the speaker unit, the number of scattered parts is reduced, the assembly is more convenient, and the installation efficiency of the speaker box is improved.
  • FIG. 1 is a schematic diagram of an embodiment of a speaker box of the application
  • Fig. 2 is an exploded view of the loudspeaker box in Fig. 1;
  • Fig. 3 is the schematic diagram of the sound-absorbing cavity cover in Fig. 1;
  • Fig. 4 is the top view of the novel loudspeaker box in Fig. 1;
  • Fig. 5 is the sectional view at A-A place in Fig. 4;
  • Fig. 6 is the enlarged view at B place in Fig. 5;
  • FIG. 7 is a schematic diagram of another viewing angle of the loudspeaker in FIG. 1;
  • Fig. 8 is a sectional view at C-C in Fig. 7;
  • FIG. 10 is an enlarged view of D in FIG. 9 .
  • the speaker box includes a housing 1 having a housing space 11 , and a speaker unit 2 that is housed and fixed in the housing 1 , and the speaker unit 2 divides the housing space 11 into a front acoustic cavity 111 and a rear acoustic cavity 112
  • One end of the casing 1 is provided with an opening 12, and the speaker box also includes a convex ring 13 fixed to the casing 1 on one side of the opening 12, and a breathable isolation net fixed between the convex ring 13 and the casing 1 and covering the opening 12.
  • the connection structure of the single unit 2 is simpler, and compared with the isolation scheme of the speaker unit 2 in the prior art, the number of movable parts that need to be connected during the assembly of the speaker box is reduced, and the air-permeable isolation net 3 and the housing 1 are simplified.
  • connection process between them improves the assembly efficiency of the isolation scheme of the speaker unit 2 , and at the same time, the arrangement of the convex ring 13 enables the operator to connect the air-permeable isolation net 3 to the housing 1 more conveniently.
  • the shell 1 and the sound-absorbing cavity cover 5 are arranged on both sides of the convex ring 13 at intervals;
  • the shell 1 and the sound-absorbing cavity cover 5 are arranged side by side, and the orthographic projections of the shell 1 and the sound-absorbing cavity cover 5 do not overlap, thereby reducing the thickness of the speaker box to a certain extent, so that the speaker box can be suitable for more Use scenarios in many small spaces.
  • the casing 1 includes a top wall 14, a side wall 15 extending from the periphery of the top wall 14, and a bottom wall 16 covering the side wall 15 and enclosing the top wall 14 to form a receiving space 11; the opening 12 on the casing 1 is opened in the side wall 15.
  • the housing 1 includes a support arm 17 extending from the top wall 14 to the bottom wall 16 , the support arm 17 is spaced apart from the air-permeable isolation net 3 , and the speaker unit 2 is supported and fixed to the support arm 17 and is spaced from the top wall 14 to form a front Acoustic cavity 111.
  • the support arm 17 and the housing 1 may be an integral structure of injection molding or die casting, thereby reducing the number of movable parts in the housing 1 and facilitating the installation operation of the speaker box.
  • the side wall 15 of the casing 1 adjacent to or opposite to the opening 12 forms a sound outlet channel 18 connecting the front acoustic cavity 111 and the outside world.
  • a through hole 19 is formed through the side wall 15 of the casing 1 adjacent to or opposite to the opening 12.
  • the speaker box also includes a circuit board 7 that electrically connects the speaker unit 2 and the external circuit through the through hole 19.
  • the arrangement of the circuit board 7 is relatively Compared with the traditional connection method using cables, the electrical connection of the speaker unit 2 can be facilitated, and at the same time, the connection structure is simple and orderly, convenient for mass production, and the consistency of product quality is guaranteed.
  • the ventilating isolation net 3 is injection-molded or bonded on the raised ring 13 to ensure the reliability of the connection between the insulating net 3 and the raised ring 13, and the breathable insulating net and the raised ring can be assembled together at the opening of the casing as a whole.
  • the sound-absorbing cavity cover 5 is provided with a filling hole 51 , the filling hole 51 communicates with the sound-absorbing cavity 4 , and the sound-absorbing material is filled into the sound-absorbing cavity 4 through the filling hole 51 .
  • the cover plate 53 can be attached to the outside of the filling hole 51 to prevent the sound-absorbing material from leaking from the filling hole 51 .
  • the sound-absorbing cavity cover 5 is also provided with a leakage hole 52 that penetrates the sound-absorbing cavity cover 5.
  • the diameter of the leakage hole 52 is significantly smaller than the diameter of the filling hole 51, and is attached to the sound-absorbing cavity cover 5 away from the sound-absorbing cavity 4 and covers the leakage hole. 52 of breathable mesh 54.
  • the speaker unit 2 is also provided with a leaking portion 21 , which communicates with the leak hole 52 through the rear acoustic cavity 112 , the air-permeable isolation net 3 and the sound absorbing cavity 4 in sequence, so as to balance the sound pressure of the rear acoustic cavity 112 of the speaker unit 2 .
  • the speaker unit 2 includes a basin frame 22, a vibration system 8 and a magnetic circuit system 9 fixedly supported on opposite sides of the basin frame 22, and the magnetic circuit system 9 includes a magnetic bowl 91.
  • the magnetic bowl 91 and the basin frame 22 are spaced apart to form a leakage portion 21. .
  • the bottom wall 16 of the housing 1 is in the shape of a cover as a whole, and the cross section of the bottom wall 16 that matches the side wall 15 is an inverted triangular structure 161.
  • the triangular structure 1661 is inclined inwardly.
  • the convex ring is fixed on the casing on the side where the opening is provided, and a ventilating isolation net is arranged between the convex ring and the shell, and the side of the convex ring facing away from the ventilating isolation net is covered.
  • the sound-absorbing cavity cover is set to realize the isolation of the single unit.
  • the overall structure of the speaker box is simplified. The installation efficiency of the speaker box can be improved.

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 un caisson de haut-parleur. Le caisson de haut-parleur comprend un boîtier ayant un espace de logement, et une unité de haut-parleur logée et fixée dans le boîtier, l'unité de haut-parleur divisant l'espace de logement en une cavité sonore avant et une cavité sonore arrière, et une extrémité du boîtier étant pourvue d'une ouverture. Le caisson de haut-parleur comprend en outre : un anneau en saillie, qui est fixé sur un côté du boîtier où l'ouverture est située ; un treillis d'isolation perméable à l'air, qui est serré et fixé entre l'anneau en saillie et le boîtier et couvre l'ouverture ; et un couvercle de cavité d'absorption acoustique, couvrant un côté de l'anneau en saillie éloigné du treillis d'isolation perméable à l'air et formant une cavité d'absorption acoustique avec le treillis d'isolation perméable à l'air de manière à l'enfermer, dans lequel le boîtier et le couvercle de cavité d'absorption acoustique sont disposés sur deux côtés de l'anneau en saillie de manière espacée ; et la cavité acoustique arrière est en communication avec la cavité d'absorption acoustique au moyen du treillis d'isolation perméable à l'air. En prévoyant l'ouverture à une extrémité du boîtier, la maille d'isolation perméable à l'air vient directement en butée contre l'ouverture au moyen de l'anneau en saillie, et l'isolation de l'unité est réalisée, de sorte que la structure globale du caisson de haut-parleur est encore simplifiée, en outre, par rapport à la solution d'isolation d'une unité de haut-parleur existante, le nombre de pièces dispersées est réduit, l'assemblage est plus pratique et rapide, et l'efficacité d'installation du caisson de haut-parleur est améliorée.
PCT/CN2020/102382 2020-07-09 2020-07-16 Caisson de haut-parleur WO2022006953A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021359172.5U CN212936100U (zh) 2020-07-09 2020-07-09 扬声器箱
CN202021359172.5 2020-07-09

Publications (1)

Publication Number Publication Date
WO2022006953A1 true WO2022006953A1 (fr) 2022-01-13

Family

ID=75329883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/102382 WO2022006953A1 (fr) 2020-07-09 2020-07-16 Caisson de haut-parleur

Country Status (2)

Country Link
CN (1) CN212936100U (fr)
WO (1) WO2022006953A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113852708B (zh) * 2021-09-13 2024-03-12 歌尔股份有限公司 电子装置、用于电子装置的发声器件及其组装方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105872917A (zh) * 2016-03-28 2016-08-17 歌尔声学股份有限公司 扬声器模组
CN205596331U (zh) * 2016-03-28 2016-09-21 歌尔股份有限公司 扬声器模组
CN205596321U (zh) * 2016-03-28 2016-09-21 歌尔股份有限公司 扬声器模组
WO2017190515A1 (fr) * 2016-05-05 2017-11-09 歌尔股份有限公司 Module de haut-parleur
CN109257681A (zh) * 2018-09-28 2019-01-22 歌尔股份有限公司 隔离件及扬声器模组
CN110971997A (zh) * 2019-12-31 2020-04-07 歌尔科技有限公司 扬声器模组和电子设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105872917A (zh) * 2016-03-28 2016-08-17 歌尔声学股份有限公司 扬声器模组
CN205596331U (zh) * 2016-03-28 2016-09-21 歌尔股份有限公司 扬声器模组
CN205596321U (zh) * 2016-03-28 2016-09-21 歌尔股份有限公司 扬声器模组
WO2017190515A1 (fr) * 2016-05-05 2017-11-09 歌尔股份有限公司 Module de haut-parleur
CN109257681A (zh) * 2018-09-28 2019-01-22 歌尔股份有限公司 隔离件及扬声器模组
CN110971997A (zh) * 2019-12-31 2020-04-07 歌尔科技有限公司 扬声器模组和电子设备

Also Published As

Publication number Publication date
CN212936100U (zh) 2021-04-09

Similar Documents

Publication Publication Date Title
CN211321501U (zh) 扬声器箱
WO2016165355A1 (fr) Module pour haut parleur
CN105872917B (zh) 扬声器模组
WO2021164080A1 (fr) Caisson de haut-parleur
CN105657615B (zh) 扬声器模组
WO2020103301A1 (fr) Module de haut-parleur
CN105516870A (zh) 扬声器模组
CN208908494U (zh) 扬声器模组
WO2021138950A1 (fr) Enceinte de haut-parleur
CN109788395A (zh) 扬声器箱
CN208638569U (zh) 扬声器箱
WO2020140548A1 (fr) Dispositif de génération de son et appareil électronique
CN109495828A (zh) 扬声器箱
CN211531241U (zh) 扬声器箱
CN108377451A (zh) 一种发声装置及电子设备
WO2022006953A1 (fr) Caisson de haut-parleur
WO2020077776A1 (fr) Module de haut-parleur
CN208707957U (zh) 一种扬声器模组
CN209017302U (zh) 扬声器模组
CN210016620U (zh) 扬声器箱
WO2022006951A1 (fr) Enceinte de haut-parleur
CN209627667U (zh) 扬声器箱
WO2022006939A1 (fr) Module de haut-parleur
WO2020103303A1 (fr) Module de haut-parleur
WO2022041435A1 (fr) Boîte de haut-parleur

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20944587

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20944587

Country of ref document: EP

Kind code of ref document: A1