WO2021168870A1 - Enceinte de haut-parleur et dispositif terminal - Google Patents

Enceinte de haut-parleur et dispositif terminal Download PDF

Info

Publication number
WO2021168870A1
WO2021168870A1 PCT/CN2020/077401 CN2020077401W WO2021168870A1 WO 2021168870 A1 WO2021168870 A1 WO 2021168870A1 CN 2020077401 W CN2020077401 W CN 2020077401W WO 2021168870 A1 WO2021168870 A1 WO 2021168870A1
Authority
WO
WIPO (PCT)
Prior art keywords
speaker box
hole
contact
circuit board
flexible circuit
Prior art date
Application number
PCT/CN2020/077401
Other languages
English (en)
Chinese (zh)
Inventor
李健
吴军
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 WO2021168870A1 publication Critical patent/WO2021168870A1/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
    • 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 utility model relates to the technical field of sound-to-electric conversion, in particular to a speaker box and terminal equipment.
  • the speaker box of the related art includes a housing with a storage space, a sounding unit that divides the storage space into a front cavity and a rear cavity, a breathable spacer accommodated in the rear cavity, and a sounding unit sheathed to support the breathable isolation
  • the frame of the piece so as to maximize the virtual sound cavity of the speaker.
  • the bonding pads in the sound generating unit are connected to the flexible circuit board, the flexible circuit board and the frame will interfere, which affects the normal operation of the speaker box.
  • the purpose of the present invention is to provide a speaker box and terminal equipment to solve the problem of interference between the flexible circuit board and the frame when the bonding pad in the sound-producing unit is connected to the flexible circuit board in the prior art, which affects the normal operation of the speaker box.
  • a loudspeaker box comprising a housing with a containing space, a sounding unit that divides the containing space into a front cavity and a rear cavity, a breathable spacer contained in the rear cavity, and a sounding unit sleeved on the sounding unit
  • the sound-producing unit is provided with pads
  • the speaker box further includes a flexible circuit board corresponding to the pads and accommodated in the rear cavity
  • the frame is provided with a through hole.
  • the speaker box further includes a conductive connector received in the through hole, one end of the conductive connector is in contact with the pad, and the other end of the conductive connector is in contact with the flexible
  • the circuit boards are in contact.
  • the sound emitting unit includes two pads arranged at intervals along the width direction of the sound emitting unit, and the frame extends toward the inside thereof to form two supporting portions corresponding to the two pads one by one.
  • the support part is provided with the through hole.
  • the flexible circuit board includes a first conductive portion for electrically connecting with the conductive connector, a second conductive portion for electrically connecting with the outside, and a first conductive portion for connecting to the first conductive portion And the connection part of the second conducting part.
  • the first conducting portion includes a first main body portion placed on the frame and two spring legs extending from two ends of the first main body portion toward the two supporting portions, respectively.
  • orthographic projection of the elastic foot along the vibration direction of the sound emitting unit falls within the orthographic projection of the support portion along the vibration direction of the sound emitting unit.
  • the spring leg is provided with a through hole arranged coaxially with the through hole, and the conductive connector includes a second main body portion located in the through hole and a direction from the second main body portion. And extend into the first contact portion of the via hole.
  • the first contact portion penetrates the through hole.
  • the conductive connector further includes a second contact portion extending from the second body portion toward the pad, and the second contact portion is in contact with the pad.
  • the conductive connector is a spring thimble.
  • a terminal device includes the aforementioned speaker box.
  • the beneficial effect of the utility model is that the flexible circuit board and the frame are both contained in the back cavity, therefore, by opening a through hole in the frame and adding a conductive connector to accommodate it in the through hole, one end of the connector is connected It is in contact with the pad in the vocal unit, and the other end of the conductive connector is in contact with the flexible circuit board, thereby realizing the connection between the pad and the flexible circuit board.
  • Figure 1 is a schematic diagram of the overall structure of a speaker box of the utility model
  • Fig. 2 is a schematic diagram of an exploded structure of Fig. 1;
  • Figure 3 is an enlarged schematic diagram of the conductive connector
  • Figure 4 is an enlarged schematic diagram of a flexible circuit board
  • Figure 5 is an enlarged schematic diagram of the frame
  • Figure 6 is a cross-sectional view in the direction of A-A in Figure 1;
  • Fig. 7 is a partial enlarged view of C in Fig. 6.
  • Figure 1 is a schematic diagram of the overall structure of a speaker box of the present invention
  • Figure 2 is a schematic diagram of the exploded structure of the speaker box shown in Figure 1
  • Figure 3 is an enlarged view of the conduction connector 60
  • Figure 4 is an enlarged schematic view of the flexible circuit board 50
  • Figure 5 is an enlarged schematic view of the frame 42
  • Figure 6 is a cross-sectional view in the AA direction in Figure 1;
  • the loudspeaker box includes a housing 10 with a receiving space, a sounding monomer 30 that divides the receiving space into a front cavity 21 and a rear cavity 22, and is accommodated in the rear
  • the air-permeable spacer 41 in the cavity 22 and the frame 42 sleeved on the sound-producing unit 30 to support the air-permeable spacer 41, the sound-producing unit 30 is provided with a pad 31, and the speaker box also includes a corresponding pad 31 that is housed in the rear cavity 22
  • the frame 42 of the flexible circuit board 50 is provided with a through hole 421 therethrough.
  • the speaker box also includes a conductive connector 60 received in the through hole 421. One end of the conductive connector 60 is in contact with the pad 31, and the conductive connector The other end of 60 is in contact with flexible circuit board 50.
  • the housing 10 includes an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are fixedly connected to enclose a receiving space, and the sound emitting monomer 30 is received in the receiving space and divides the receiving space into Front chamber 21 and rear chamber 22.
  • the sound-producing monomer 30 and the upper cover 11 enclose a front cavity 21, and the side of the upper cover 11 is provided with a sound outlet 111 communicating with the front cavity 21 for realizing sound transmission of the speaker box.
  • the sounding monomer 30, the lower cover 12 and the upper cover 11 jointly enclose the rear cavity 22.
  • the rear cavity 22 is provided with a breathable spacer 41.
  • the breathable spacer 41 is supported by a frame 42 sleeved on the sounding monomer 30, and is located in the rear cavity. 22 is filled with sound-absorbing material.
  • the frame 42 and the air-permeable spacer 41 isolate the sound-absorbing material from the sound-producing monomer 30 to avoid entering the sound-producing monomer 30; when the rear cavity 22 is filled with sound-absorbing materials, the entire rear cavity 22 is available It fills and forms a virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box.
  • both the flexible circuit board 50 and the frame 42 are received in the rear cavity 22. Therefore, by opening a through hole 421 in the frame 42 and adding a conductive connector 60 to receive it in the through hole 421, One end of the through connector 60 is in contact with the pad 31 in the sound emitting unit 30, and the other end of the through connector 60 is in contact with the flexible circuit board 50, so as to realize the conduction between the pad 31 and the flexible circuit board 50.
  • Using this technical solution solves the technical problem in the prior art that when the bonding pad 31 in the sounding unit 30 is connected to the flexible circuit board 50, the flexible circuit board 50 and the frame 42 will interfere, which affects the normal operation of the speaker box.
  • the sound emitting unit 30 includes two pads 31 spaced apart along the width direction of the sound emitting unit 30, and the frame 42 extends toward the inside thereof to form two supporting portions 422 corresponding to the two pads 31 one by one.
  • a through hole 421 is opened on the supporting portion 422.
  • the connection between the pad 31 and the flexible circuit board 50 is achieved by adding two conductive connectors 60.
  • the frame 42 extends toward the inside to form two supporting portions 422, and the two supporting portions 422 correspond to the two pads 31 one-to-one. By providing the supporting portions 422, the frame 42 can be opened corresponding to the pads 31.
  • the through hole 421 facilitates the conduction function of the conduction connector 60.
  • the air-permeable spacer 41 forms a gap 411 corresponding to the support portion 422, as shown in FIG. The materials.
  • the flexible circuit board 50 includes a first conductive portion 51 for electrical connection with the conductive connector 60, a second conductive portion 52 for electrical connection with the outside world, and a first conductive portion 52 for connecting to the first conductive portion.
  • the first conducting portion 51 is located on the side of the frame 42 away from the front cavity 21 to be connected to the conducting connector 60; the second conducting portion 52 extends out of the housing 10 to be electrically connected to an external circuit, and the first conducting portion 51 It is connected to the second conducting portion 52 through the connecting portion 53 to be accommodated in the rear cavity 22.
  • the first conducting portion 51 includes a first main body portion 511 placed on the frame 42 and two spring feet 512 respectively extending from two ends of the first main body portion 511 toward the two supporting portions 422.
  • the first conducting portion 51 is composed of a first main body portion 511 placed on the frame 42 and two spring legs 512 placed on the supporting portion 422, which ensures that the conducting connector 60 can contact the spring legs 512 through the through hole 421 , The structural stability of the entire first conducting portion 51 is also ensured, and the material used for the first conducting portion 51 is reduced.
  • the orthographic projection of the elastic foot 512 along the vibration direction of the sounding unit 30 falls within the orthographic projection of the support portion 422 along the vibration direction of the sounding unit 30.
  • the size of the position of the elastic foot 512 is set so that the size of the supporting portion 422 is larger than the size of the elastic foot 512, so as to ensure that the supporting portion 422 can stably support the entire elastic foot 512.
  • the spring foot 512 is provided with a through hole 512a coaxially arranged with the through hole 421, and the through connector 60 includes a second body portion 61 and a second body located in the through hole 421.
  • the first contact portion 62 faces and extends into the via hole 512a from the second body portion 61.
  • the first contact portion 62 penetrates through the via hole 512a to further ensure sufficient contact between the first contact portion 62 and the elastic foot 512, that is, to further ensure sufficient contact between the pad 31 and the flexible circuit board 50.
  • the conductive connector 60 further includes a second contact portion 63 formed extending from the second body portion 61 toward the pad 31, and the second contact portion 63 is in contact with the pad 31.
  • the through hole 421 is provided corresponding to the pad 31, so when the second contact portion 63 formed by the extension of the second body portion 61, the second contact portion 63 can directly contact the pad 31.
  • the conductive connector 60 is selected as a spring thimble, which is mass-produced.
  • a spring thimble makes assembly easier.
  • the present invention also provides a terminal device, which includes the aforementioned speaker box, so the terminal device has the performance of the aforementioned speaker box.

Landscapes

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

Abstract

Le présent modèle d'utilité concerne un caisson de haut-parleur et un dispositif terminal. Le caisson de haut-parleur comprend un boîtier ayant un espace de logement, une unité de production de son divisant l'espace de logement en une cavité avant et une cavité arrière, un élément d'isolation perméable à l'air logé dans la cavité arrière, et un cadre gainé sur l'unité de production de son pour supporter l'élément d'isolation perméable à l'air ; l'unité de production de son est munie d'un plot de liaison ; le caisson de haut-parleur comprend en outre une carte de circuit flexible correspondant à la plage de connexion et logée dans la cavité arrière ; le cadre est pourvu d'un trou traversant ; et le caisson de haut-parleur comprend en outre un connecteur de conduction logé dans le trou traversant, une extrémité du connecteur de conduction est en contact avec la plage de connexion, et l'autre extrémité du connecteur de conduction est en contact avec la carte de circuit flexible. La solution technique résout le problème technique selon lequel le fonctionnement normal des caissons de haut-parleur est influencé par l'interférence entre la carte de circuit imprimé flexible et le cadre lorsque le plot de connexion de l'unité de production du son est connecté à la carte de circuit imprimé flexible dans l'art antérieur.
PCT/CN2020/077401 2020-02-24 2020-03-02 Enceinte de haut-parleur et dispositif terminal WO2021168870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020202713.7U CN211531324U (zh) 2020-02-24 2020-02-24 一种扬声器箱及终端设备
CN202020202713.7 2020-02-24

Publications (1)

Publication Number Publication Date
WO2021168870A1 true WO2021168870A1 (fr) 2021-09-02

Family

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PCT/CN2020/077401 WO2021168870A1 (fr) 2020-02-24 2020-03-02 Enceinte de haut-parleur et dispositif terminal

Country Status (2)

Country Link
CN (1) CN211531324U (fr)
WO (1) WO2021168870A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN213906847U (zh) * 2020-12-18 2021-08-06 瑞声光电科技(常州)有限公司 扬声器箱
CN112468909B (zh) * 2020-12-18 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201629825U (zh) * 2009-12-21 2010-11-10 国基电子（上海）有限公司 移动电话的音箱结构
CN202435601U (zh) * 2011-12-28 2012-09-12 瑞声光电科技(常州)有限公司 发声器件
US20120243720A1 (en) * 2011-03-27 2012-09-27 An-Hsiu Lee Auto-Play Audible Publication
CN108810767A (zh) * 2018-08-03 2018-11-13 瑞声科技(新加坡)有限公司 扬声器及扬声器的制作方法
CN109672948A (zh) * 2018-12-29 2019-04-23 歌尔股份有限公司 发声器件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201629825U (zh) * 2009-12-21 2010-11-10 国基电子（上海）有限公司 移动电话的音箱结构
US20120243720A1 (en) * 2011-03-27 2012-09-27 An-Hsiu Lee Auto-Play Audible Publication
CN202435601U (zh) * 2011-12-28 2012-09-12 瑞声光电科技(常州)有限公司 发声器件
CN108810767A (zh) * 2018-08-03 2018-11-13 瑞声科技(新加坡)有限公司 扬声器及扬声器的制作方法
CN109672948A (zh) * 2018-12-29 2019-04-23 歌尔股份有限公司 发声器件

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