WO2021253538A1 - Enceinte de haut-parleur - Google Patents

Enceinte de haut-parleur Download PDF

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Publication number
WO2021253538A1
WO2021253538A1 PCT/CN2020/101276 CN2020101276W WO2021253538A1 WO 2021253538 A1 WO2021253538 A1 WO 2021253538A1 CN 2020101276 W CN2020101276 W CN 2020101276W WO 2021253538 A1 WO2021253538 A1 WO 2021253538A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
air
upper cover
section
main body
Prior art date
Application number
PCT/CN2020/101276
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 WO2021253538A1 publication Critical patent/WO2021253538A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics

Definitions

  • the utility model relates to the technical field of an electro-acoustic conversion device, in particular to a speaker box.
  • the speaker box in the related art includes an upper cover, a lower cover assembled with the upper cover to form a containing space, a sound emitting unit separately contained in the containing space, a ring-shaped bracket, and a ventilating isolation component;
  • the isolation assembly includes a bracket that fixes the upper cover and surrounds the sound-producing unit, and a breathable spacer between the sound-producing unit and the lower cover.
  • the periphery of the breathable spacer is fixed to the bracket, so
  • the sound-producing monomer and the air-permeable isolation component jointly divide the containing space into a front cavity and a rear cavity, so as to realize a fully tankable structure in the rear cavity.
  • the bracket and the upper cover need to be assembled and glued first, and then the air-permeable spacer is assembled and glued to the bracket to realize the above-mentioned full-filled sound-emitting monomer isolation solution.
  • the structure has many assembly and gluing steps, which seriously affects the assembly production efficiency.
  • the purpose of the utility model is to provide a loudspeaker box with excellent low-frequency acoustic performance and high assembly efficiency.
  • the present invention provides a loudspeaker box, which includes a lower cover, an upper cover covered by the lower cover and jointly enclosing a receiving space, a sounding unit received in the receiving space, and a breathable Separator;
  • the upper cover includes an upper cover body covering the lower cover and a support wall protruding from the upper cover body to the direction of the lower cover, the sound-producing monomer is supported and fixed to the support
  • the sound-emitting unit includes a magnetic circuit system, and the magnetic circuit system includes a magnetic yoke arranged on a side of the sound-emitting unit away from the upper cover.
  • the magnetic yoke includes a magnetic yoke body and a magnetic yoke.
  • the yoke supporting part formed by the periphery of the main body recessed in the direction of the upper cover;
  • the air-permeable isolator includes a main body part covering the sound emitting monomer and spaced apart from the lower cover, an extension wall bent and extending from the periphery of the main body part to the supporting wall, and a passage penetrating through the main body part.
  • the yoke body is exposed to the main body part through the through hole, the main body part is connected to the yoke support part, the extension wall is arranged around the peripheral side of the sound emitting unit, and the
  • the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system and the air-permeable spacer and the sound-producing monomer jointly separate the containing space into a front cavity and a rear cavity; the back cavity is filled Sound-absorbing particles, the air-permeable spacer encapsulates the sound-absorbing particles in the rear cavity.
  • the thickness of the main body portion is smaller than the depth of the recess of the yoke support portion.
  • the extension wall abuts against the support wall.
  • the speaker box further includes a circuit board, one end of the circuit board is fixed and electrically connected with the sound emitting unit, the other end of the circuit board extends to the outside of the receiving space through the rear cavity, and the extension wall is provided with A relief groove is formed at one end of the support wall that is recessed toward the lower cover, and the circuit board extends through the relief groove; the location of the relief groove and the circuit board are sealed by gluing.
  • the circuit board includes a first section located between the extension wall and the sound emitting unit, and extends from opposite ends of the first section to the sound emitting unit and is connected to the sound emitting unit.
  • a second section forming an electrical connection and a third section extending from the first section away from the sound emitting unit; the third section extends through the relief groove and penetrates the upper cover to the receiving Outside the space, the location of the relief groove and the third section are sealed by gluing.
  • the upper cover is further provided with a supporting wall protruding from the outside thereof, and the third section is attached to the supporting wall.
  • the supporting wall is provided with a positioning post on one side close to the third section, and the third section is provided with a positioning hole penetrating therethrough, and the positioning post is inserted into the positioning hole.
  • the speaker box further includes a powder filling hole provided through the upper cover and/or the lower cover and a sealing cover covering the powder filling hole.
  • the speaker box of the present invention supports and fixes the sound-producing monomer to the supporting wall and positions the air-permeable isolator between the sound-producing monomer and the lower cover, and the air-permeable isolator is made of metal material.
  • the air-permeable isolator includes a main body part covering the sound-emitting monomer and spaced apart from the lower cover, and an extension wall bent and extended from the periphery of the main body part toward the supporting wall, the extension wall It is arranged around the peripheral side of the sound emitting unit, and the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system and the air-permeable spacer and the sound unit It is divided into a front cavity and a rear cavity.
  • the above structure allows the rear cavity on the side of the air-permeable spacer away from the sound-producing monomer to be filled with sound-absorbing particles as a virtual sound cavity, which greatly improves the filling efficiency of the sound-absorbing particles in the rear cavity and is effective
  • the low-frequency acoustic performance of the speaker box is improved.
  • the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system, the glue fixing process is omitted, and the production efficiency is effectively improved.
  • the air-permeable spacer is further provided with a through hole penetrating the main body, and the sound generating unit is provided with a yoke.
  • the yoke includes a yoke body and A yoke support portion formed by a recess in the direction of the cover, the yoke body is exposed to the main body portion through the through hole, and the main body portion is connected to the yoke support portion.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box of the present invention.
  • Figure 2 is an exploded schematic diagram of a part of the three-dimensional structure of the speaker box of the present invention.
  • Figure 3 is a sectional view taken along the line A-A in Figure 1;
  • FIG. 4 is a schematic structural diagram of another embodiment of the powder filling hole in the speaker box of the present invention.
  • Figure 5 is a schematic structural view of another embodiment of the powder filling hole in the speaker box of the present invention.
  • the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sounding monomer 3, and a ventilating spacer 4.
  • the lower cover 1 is disposed on the upper cover 2 and jointly encloses a receiving space 10.
  • the upper cover 2 includes an upper cover body 21 covering the lower cover 1, a supporting wall 22 projecting and extending from the upper cover body 21 in the direction of the lower cover, and a support wall 22 formed on the upper cover The sound guide channel 23 of the body 21.
  • the supporting wall 22 is ring-shaped.
  • the sound emitting unit 3 is received in the receiving space 10 and supported by the upper cover 2.
  • the sound generating unit 3 includes a vibration system 31 and a magnetic circuit system 32.
  • the magnetic circuit system 32 provides a driving force to drive the vibration system 31 to vibrate and produce sound.
  • the magnetic circuit system 32 includes a magnetic yoke 321 arranged on a side of the sound emitting unit 3 away from the upper cover 2.
  • the yoke 321 includes a yoke body 3211 and a yoke support portion 3212 formed by recessing the periphery of the yoke body 3211 in the direction of the upper cover 2.
  • the yoke support portion 3212 has a ring shape.
  • the sounding monomer 3 is supported and fixed to the supporting wall 22.
  • the periphery of the sound-producing monomer 3 is fixed to the supporting wall 22 by glue.
  • the air-permeable spacer 4 is accommodated in the accommodating space 10 and is located between the sound-producing monomer 3 and the lower cover 1.
  • the air-permeable spacer 4 and the sound-producing monomer 3 jointly hold the
  • the space 10 is divided into a front chamber 101 and a rear chamber 102.
  • the front cavity 101 is used for sound production, and the sound guide channel 23 forms the front cavity 101 into a side sound emitting structure.
  • the rear cavity 102 is filled with sound-absorbing particles 5, and the air-permeable spacer 4 encapsulates the sound-absorbing particles 5 in the rear cavity 102 to form a DBASS virtual acoustic cavity for further improving low-frequency acoustic performance.
  • the vibration system 31 is spaced from the upper cover body 21 to form a front acoustic cavity 6, and the sound guide channel 23 connects the front acoustic cavity 6 with the outside and forms the front cavity 101 together for forming a side sounding structure.
  • the sound emitting monomer 3, the air-permeable isolator 4, the upper cover 2 and the lower cover 1 jointly enclose the rear cavity 102 for improving low-frequency acoustic performance.
  • the air-permeable spacer 4 is made of metal material.
  • the air-permeable isolator 4 includes a main body 41 that is arranged on the sound-producing monomer 3 and is spaced apart from the lower cover 1, and is bent and extends from the periphery of the main body 41 toward the supporting wall 22
  • the extension wall 42 and the through hole 40 penetrating the main body 41, the extension wall 42 is arranged around the peripheral side of the sound emitting unit 3, and the air-permeable spacer 4 passes between the magnetic circuit system 32
  • the magnetic attraction to form a fixed Therefore, this structure realizes that the air-permeable spacer 4 and the sound-producing monomer 3 jointly divide the receiving space 10 into a front cavity 101 and a rear cavity 102.
  • the air-permeable spacer 4 forms a three-dimensional structure and separates the sound-producing monomer 3 from the rear cavity 102 to prevent the sound-absorbing particles 5 from entering the sound-producing monomer 3 from the rear cavity 102 to affect the sound generation performance, which is effective This improves the sounding reliability of the speaker box 100.
  • the above structure enables the rear cavity 102 on the side of the air-permeable spacer 4 away from the sound-emitting monomer 3 to be fully filled with sound-absorbing particles 5 as the D-BASS virtual sound cavity, which greatly improves the filling efficiency of the sound-absorbing particles 5 of the rear cavity 102 , Which effectively improves the low-frequency acoustic performance of the speaker box 100.
  • the air-permeable spacer 4 is fixed by the magnetic attraction force of the magnetic circuit system 32, the process of glueing and fixing is omitted, and the production efficiency is effectively improved.
  • the extension wall 42 abuts against the support wall 22 and is fixed by magnetic attraction with the magnetic circuit system 22.
  • the yoke body 3211 is exposed to the main body 41 through the through hole 40, and the main body 41 is connected to the magnetic Yoke support 3212.
  • This structure makes the assembly of the air-permeable spacer 4 simpler and has lower requirements on the accommodation space 10, especially in the thickness space along the vibration direction of the sound-producing monomer 3, which effectively improves the assembly efficiency and is beneficial to
  • the speaker box 100 has a thinner thickness.
  • the thickness of the main body portion 41 is smaller than the depth of the recess of the yoke support portion 3212.
  • the yoke body 3211 passes through the through hole 40, and the main body 41 of the air-permeable spacer 4 abuts against the yoke support portion 3212, and moves along the sounding unit 3 In the vibration direction, the distance between the air-permeable spacer 4 and the lower cover is farther than that of the sound emitting unit 3, so that the space requirement for assembling is lower, so that especially in the vibration direction of the sound emitting unit 3
  • the thickness and space requirements are lower, which effectively improves the assembly efficiency and facilitates the thinning of the thickness of the speaker box 100.
  • the speaker box 100 further includes a circuit board 7, one end of the circuit board 7 is fixedly electrically connected to the sound emitting unit 3, and the other end of the circuit board 7 extends outside the receiving space 10 through the rear cavity 102 for the sound generation
  • the monomer 3 introduces an external electric signal.
  • the extension wall 42 is provided with a relief groove 421 formed by its end close to the support wall 22 recessed in the direction of the lower cover 1, and the circuit board 7 passes through the relief groove 421.
  • the groove 421 extends and further extends to the outside of the accommodating space 10, and the position of the relief groove 421 is sealed with the circuit board 7 by gluing to prevent the sound-absorbing particles 5 from entering the sound-producing monomer 3 therefrom.
  • the circuit board 7 includes a first section 71 located between the extension wall 42 and the sound emitting unit 3, and extends from opposite ends of the first section 71 to the sound emitting unit 3 and
  • the second section 72 that is electrically connected to the sounding monomer 3 and the third section 73 that extends away from the sounding monomer 3 from the first section 71, the third section 73 is used to connect an external electric Signal.
  • the third section 73 passes through the relief groove 421 and penetrates the upper cover 2 to extend to the outside of the receiving space 10, and the position where the relief groove 421 is located and the third section 73 are sealed by gluing.
  • the upper cover 2 is further provided with a supporting wall 24 protruding from the outside thereof, and the third section 73 is attached to the supporting wall 24 to support the third section 73, which is convenient for communication with External electrical signal source connection.
  • the supporting wall 24 is provided with a positioning post 241 on one side close to the third section 73, and the third section 73 is provided with a positioning hole 731 passing through it, and the positioning post 241 is inserted into the third section 73.
  • the positioning hole 731 the positioning of the third section 73 is formed, which improves the assembly efficiency on the one hand, and prevents the movement of the third section 73 on the other hand, and improves the stability of the connection with the external power signal.
  • the speaker box 100 is also provided with a powder filling hole 9 and a sealing cover 91 covering the powder filling hole 9.
  • the powder filling hole 9 is in communication with the rear cavity 102 for filling the rear cavity 102 Sound-absorbing particles 5.
  • the powder filling holes 9 include at least two, and they are provided on the upper cover 2 and the lower cover 1 respectively.
  • the setting of the powder filling hole 9 is not limited to the above method, and can also be set separately:
  • the powder filling hole 409 includes the upper cover 402 and the sealing cover 491 covers the powder filling hole 409.
  • the powder filling hole 509 includes the lower cover 501 and the sealing cover 591 covers the powder filling hole 509.
  • the speaker box of the present invention supports and fixes the sound-producing monomer to the supporting wall and positions the air-permeable isolator between the sound-producing monomer and the lower cover, and the air-permeable isolator is made of metal material.
  • the air-permeable isolator includes a main body part covering the sound-emitting monomer and spaced apart from the lower cover, and an extension wall bent and extended from the periphery of the main body part toward the supporting wall, the extension wall It is arranged around the peripheral side of the sound emitting unit, and the air-permeable spacer is fixed by the magnetic attraction between the magnetic circuit system and the air-permeable spacer and the sound unit It is divided into a front cavity and a rear cavity.
  • the above structure allows the rear cavity on the side of the air-permeable spacer away from the sound-producing monomer to be filled with sound-absorbing particles as a virtual sound cavity, which greatly improves the filling efficiency of the sound-absorbing particles in the rear cavity and is effective
  • the low-frequency acoustic performance of the speaker box is improved.
  • the air-permeable spacer is fixed by the magnetic attraction of the magnetic circuit system, the glue fixing process is omitted, and the production efficiency is effectively improved.
  • the air-permeable spacer is further provided with a through hole penetrating the main body, and the sound generating unit is provided with a yoke.
  • the yoke includes a yoke body and A yoke support portion formed by a recess in the direction of the cover, the yoke body is exposed to the main body portion through the through hole, and the main body portion is connected to the yoke support portion.

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  • 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 fournit une enceinte de haut-parleur, comprenant un couvercle inférieur, un couvercle supérieur, une unité de génération de son, et un séparateur perméable à l'air ; le couvercle supérieur comprend un corps de couvercle supérieur et une paroi de support ; l'unité de génération de son est supportée par et fixée à la paroi de support, et l'unité de génération de son comprend un système de circuit magnétique ayant une culasse magnétique, la culasse magnétique comprenant un corps de culasse magnétique et une partie de support de culasse magnétique ; le séparateur perméable à l'air est situé entre l'unité de génération de sons et le couvercle inférieur ; le séparateur perméable à l'air est en matériau métallique, et le séparateur perméable à l'air comprend une partie de corps principal, une paroi d'extension, et un trou traversant ; le corps de la culasse magnétique est exposé sur la partie du corps principal au moyen du trou traversant ; la partie du corps principal est reliée à la partie de support de la culasse magnétique ; la paroi d'extension est disposée autour de l'unité de génération de sons ; le séparateur perméable à l'air est fixé au moyen de l'attraction magnétique entre le séparateur perméable à l'air et le système de circuit magnétique, de sorte que le séparateur perméable à l'air et l'unité de génération de sons séparent ensemble l'espace de logement en une cavité avant et une cavité arrière ; des particules absorbant les sons remplissent la cavité arrière, et le séparateur perméable à l'air encapsule les particules absorbant les sons dans la cavité arrière. Par rapport à l'état de la technique, l'enceinte de haut-parleur du présent modèle d'utilité a une bonne performance acoustique basse fréquence et une efficacité d'assemblage élevée.
PCT/CN2020/101276 2020-06-15 2020-07-10 Enceinte de haut-parleur WO2021253538A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021108866.1U CN212628256U (zh) 2020-06-15 2020-06-15 扬声器箱
CN202021108866.1 2020-06-15

Publications (1)

Publication Number Publication Date
WO2021253538A1 true WO2021253538A1 (fr) 2021-12-23

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ID=74717815

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Application Number Title Priority Date Filing Date
PCT/CN2020/101276 WO2021253538A1 (fr) 2020-06-15 2020-07-10 Enceinte de haut-parleur

Country Status (2)

Country Link
CN (1) CN212628256U (fr)
WO (1) WO2021253538A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113179470B (zh) * 2021-04-14 2023-03-07 歌尔股份有限公司 发声器件
CN113259817B (zh) * 2021-04-27 2023-01-13 维沃移动通信有限公司 扬声器及电子设备
CN114845217A (zh) * 2021-12-30 2022-08-02 歌尔股份有限公司 发声器件及电子装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180213319A1 (en) * 2017-01-26 2018-07-26 AAC Technologies Pte. Ltd. Sound Generator
CN207968867U (zh) * 2018-02-02 2018-10-12 瑞声科技(新加坡)有限公司 扬声器箱
CN208572318U (zh) * 2018-05-09 2019-03-01 瑞声精密电子沭阳有限公司 扬声器箱
CN109788375A (zh) * 2018-12-31 2019-05-21 瑞声声学科技(深圳)有限公司 扬声器箱
CN209201329U (zh) * 2018-11-08 2019-08-02 瑞声科技(新加坡)有限公司 扬声器箱

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180213319A1 (en) * 2017-01-26 2018-07-26 AAC Technologies Pte. Ltd. Sound Generator
CN207968867U (zh) * 2018-02-02 2018-10-12 瑞声科技(新加坡)有限公司 扬声器箱
CN208572318U (zh) * 2018-05-09 2019-03-01 瑞声精密电子沭阳有限公司 扬声器箱
CN209201329U (zh) * 2018-11-08 2019-08-02 瑞声科技(新加坡)有限公司 扬声器箱
CN109788375A (zh) * 2018-12-31 2019-05-21 瑞声声学科技(深圳)有限公司 扬声器箱

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