WO2022000541A1 - Boîtier de haut-parleur - Google Patents

Boîtier de haut-parleur Download PDF

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Publication number
WO2022000541A1
WO2022000541A1 PCT/CN2020/101475 CN2020101475W WO2022000541A1 WO 2022000541 A1 WO2022000541 A1 WO 2022000541A1 CN 2020101475 W CN2020101475 W CN 2020101475W WO 2022000541 A1 WO2022000541 A1 WO 2022000541A1
Authority
WO
WIPO (PCT)
Prior art keywords
rear cavity
sound
upper cover
cavity
speaker box
Prior art date
Application number
PCT/CN2020/101475
Other languages
English (en)
Chinese (zh)
Inventor
李红
刘海林
王武
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 WO2022000541A1 publication Critical patent/WO2022000541A1/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
    • 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
    • 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 field of sound and electricity, in particular to a speaker box.
  • sound-absorbing particles are usually filled in the auxiliary sound cavity of the speaker box to form a D-BASS virtual sound cavity.
  • the purpose of the utility model is to provide a loudspeaker box to solve the technical problem of serious abrasion of bass particles caused by the violent movement of the bass.
  • a loudspeaker enclosure comprising:
  • the casing has a receiving space
  • a sounding unit is accommodated in the accommodating space, and the sounding unit divides the accommodating space into a front cavity and a rear cavity;
  • the rear cavity has a first rear cavity and a second rear cavity, the second rear cavity is filled with sound-absorbing particles, and the inner side of the second rear cavity is provided with an inner surface that can resist the movement of the sound-absorbing particles. Broken sound-absorbing pieces.
  • the second rear cavity is in the shape of a long strip, and the number of the sound-absorbing members is set to one,
  • the sound absorbing member is centrally arranged along the length direction of the second rear cavity.
  • the second rear cavity is in the shape of a long strip, and there are at least two sound absorbing members, and at least two of the sound absorbing members are distributed at intervals along the length direction of the second rear cavity.
  • the sound-absorbing member is block-shaped and is flatly attached to the inner side of the casing.
  • the second rear cavity is elongated, and the sound absorbing member extends along the width direction of the second rear cavity.
  • the housing includes an upper cover and a lower cover that is enclosed with the upper cover to form the receiving space, the sounding unit and the upper cover enclose the front cavity, the sounding unit, the lower cover
  • the back cavity is formed together with the upper cover
  • the speaker box further includes a ventilating isolation component and a blocking wall extending from the upper cover to the lower cover, the ventilating isolation component is fixed on the blocking wall and is connected with the
  • the retaining wall jointly divides the rear cavity into the first rear cavity and the second rear cavity
  • the upper cover is provided with a through groove penetrating the upper cover corresponding to the second rear cavity
  • the upper cover further includes a cover plate connected to the through groove, and the sound absorbing member is fixed on a surface of the cover plate facing the second rear cavity.
  • cover plate is disposed opposite to the air-permeable isolation component, and the sound-absorbing member is disposed at intervals from the air-permeable isolation component.
  • the upper cover includes a bottom plate and a side plate extending from an edge of the bottom plate to the lower cover, the through groove is formed in the bottom plate, and the sound absorbing member is arranged at intervals from the side plate.
  • the sound-absorbing member is sound-absorbing cotton.
  • the beneficial effect of the utility model is that: by filling the second rear cavity with sound-absorbing particles (not shown in the figure), the second rear cavity forms a D-BASS virtual sound cavity, so as to improve the acoustic performance of the speaker box.
  • the length of the second rear cavity is long, a sound absorbing member located in the second rear cavity is protruded through the inner side of the casing, and the sound absorbing member can block the movement of the sound absorbing particles, The change of the lowest resonant frequency (F0) caused by the wear of sound-absorbing particles is further reduced, thus effectively improving the acoustic performance of the speaker box with a longer virtual sound cavity.
  • FIG. 1 is a schematic structural diagram of a speaker box provided by an embodiment of the present invention.
  • Fig. 2 is an exploded view of the loudspeaker box in Fig. 1;
  • Fig. 3 is a sectional view along line A-A in Fig. 1;
  • FIG. 4 is a schematic structural diagram of the speaker box in FIG. 1 with a lower cover removed;
  • FIG. 5 is a cross-sectional view along A-A of FIG. 1 in another embodiment.
  • Speaker box 1. Shell; 10. Receiving space; 2. Sound producing unit; 101. Front cavity; 102. Rear cavity; 1021, First rear cavity; 1022, Second rear cavity; 11. Upper cover; 12. Lower cover; 4. Breathable isolation assembly; 13. Retaining wall; 111. Bottom plate; 112. Side plate; 110. Through groove; 113. Cover plate; .
  • an embodiment of the present invention provides a speaker box 100, including:
  • a housing 1 having a housing space 10, the housing 1 having a housing space 10;
  • the sounding unit 2 is accommodated in the accommodating space 10.
  • the sounding unit 2 divides the accommodating space 10 into a front cavity 101 and a rear cavity 102; the rear cavity 102 has a first rear cavity 1021 and a second rear cavity 102.
  • the second rear cavity 1022 is filled with sound-absorbing particles, and the inner side of the second rear cavity 1022 is protruded with a sound-absorbing member 3 that can block the movement of the sound-absorbing particles.
  • the air in the second rear cavity 1022 can be adsorbed, and the air compliance can be improved, thereby achieving The low-frequency resonance frequency of the speaker box 100 is lowered, thereby improving the low-frequency performance, so as to improve the low-frequency acoustic performance, so that the second rear cavity 1022 forms a D-BASS virtual sound cavity to improve the bass effect.
  • the length of the second rear cavity 1022 is relatively large, by protruding the sound absorbing member 3 located in the second rear cavity 1022 on the inner side of the casing 1, the sound absorbing member 3 can perform the movement of the sound absorbing particles.
  • Blocking thereby reducing the wear caused by the vigorous movement of the sound-absorbing particles, and further reducing the change of the minimum resonance frequency (F0) caused by the wear of the sound-absorbing particles.
  • the minimum resonance frequency (F0) can be reduced by 10-30HZ. Therefore, effective The acoustic performance of the speaker cabinet 100 with a longer virtual sound cavity length is improved.
  • the second rear cavity 1022 is elongated, and the number of the sound absorbing members 3 is one.
  • the number of the sound absorbing members 3 is set to one.
  • the sound absorbing member 3 when there is one sound absorbing member 3 , the sound absorbing member 3 is centrally arranged along the length direction of the second rear cavity 1022 .
  • the size of the space on both sides of the sound absorbing member 3 and the number of sound absorbing particles on both sides are equivalent, the motion blocking effect of the sound absorbing particles on both sides of the sound absorbing member 3 is equivalent, and the motion blocking effect on the sound absorbing particles is better.
  • the second rear cavity 1022 is elongated, the number of the sound absorbing members 3 is provided, and the two sound absorbing members 3 are spaced apart along the length direction of the second rear cavity 1022 . In the same way, it is better to block the movement of the sound-absorbing particles.
  • the length of the first rear cavity 1021 is greater than 20 mm and less than 30 mm, there are two sound absorbing members 3 .
  • the sound absorbing member 3 is block-shaped and flatly attached to the inner side of the housing 1 .
  • the second rear cavity 1022 is elongated, and the sound absorbing member 3 extends along the width direction of the second rear cavity 1022 .
  • the sound-absorbing particles are more likely to move along the length direction of the second rear cavity 1022, and in this way, the effect of blocking the movement of the sound-absorbing particles is better, thereby reducing the wear of the sound-absorbing particles.
  • the casing 1 includes an upper cover 11 and a lower cover 12 that is enclosed with the upper cover 11 to form the receiving space 10 .
  • the sounding unit 2 and the upper cover 11 enclose the front cavity 101 .
  • the sound-generating unit 2, the lower cover 12 and the upper cover 11 together form a rear cavity 102.
  • the speaker box 100 further includes a ventilating isolation component 4 and a blocking wall 13 extending from the upper cover 11 to the lower cover 12, so The ventilating isolation component 4 is fixed to the blocking wall 13 and together with the blocking wall 13 divides the rear cavity 102 into the first rear cavity 1021 and the second rear cavity 1022, and the upper cover 11 corresponds to
  • the second rear cavity 1022 defines a through groove 110 penetrating the upper cover 11 .
  • the upper cover 11 further includes a cover plate 113 which is connected to the through groove 110 , and the sound absorbing member 3 is fixed to the cover. The plate 113 faces the side of the second rear cavity 1022 .
  • the cover plate 113 is disposed opposite to the air-permeable isolation assembly 4 , and the sound-absorbing member 3 is disposed at an interval from the air-permeable isolation assembly 4 .
  • the upper cover 11 includes a bottom plate 111 and a side plate 112 extending from the edge of the bottom plate 111 to the lower cover 12 .
  • the plates 112 are arranged at intervals.
  • the cover plate 113 is provided with a powder filling hole 1130 .
  • the sound-absorbing particles are loaded into the second rear cavity 1022 through the powder filling hole 1130 , and the speaker box 100 further includes a sealing cover 1131 covering the powder filling hole 1130 .
  • the sound-absorbing member 3 is sound-absorbing cotton.

Abstract

Le présent modèle d'utilité concerne un boîtier de haut-parleur. Le boîtier de haut-parleur comprend un logement et une unité de production de son ; le logement comprend un espace de réception ; l'unité de production de son est reçue dans l'espace de réception et sépare l'espace de réception en une cavité avant et une cavité arrière ; la cavité arrière comprend une première cavité arrière et une seconde cavité arrière ; la seconde cavité arrière est remplie de particules absorbant les sons ; des éléments absorbant les sons capables de bloquer le mouvement des particules absorbant les sons font saillie à partir de la surface latérale interne définissant la seconde cavité arrière. Les éléments absorbant les sons situés dans la seconde cavité arrière font saillie à partir de la surface latérale interne du logement, de sorte que les éléments absorbant les sons puissent bloquer le mouvement des particules absorbant les sons, ce qui permet de réduire davantage le changement de la fréquence de résonance la plus basse (F0) provoquée par l'abrasion des particules absorbant les sons, et améliorant ainsi efficacement les performances acoustiques de le boîtier de haut-parleur comprenant une longue cavité acoustique virtuelle.
PCT/CN2020/101475 2020-06-29 2020-07-10 Boîtier de haut-parleur WO2022000541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021233809.6 2020-06-29
CN202021233809.6U CN212486709U (zh) 2020-06-29 2020-06-29 扬声器箱

Publications (1)

Publication Number Publication Date
WO2022000541A1 true WO2022000541A1 (fr) 2022-01-06

Family

ID=74414081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/101475 WO2022000541A1 (fr) 2020-06-29 2020-07-10 Boîtier de haut-parleur

Country Status (2)

Country Link
CN (1) CN212486709U (fr)
WO (1) WO2022000541A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113438342B (zh) * 2021-05-21 2022-07-01 北京荣耀终端有限公司 一种扬声器模组和电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657388A (en) * 1979-10-17 1981-05-19 Pioneer Electronic Corp Forming method of sound absorber for speaker cabinet
CN108235198A (zh) * 2018-02-24 2018-06-29 歌尔股份有限公司 一种扬声器模组及电子设备
CN108989944A (zh) * 2018-08-03 2018-12-11 瑞声光电科技(常州)有限公司 扬声器箱
CN109688511A (zh) * 2019-01-30 2019-04-26 苏州夸克新材料科技有限公司 一种扬声器装置
CN107071668B (zh) * 2017-05-24 2019-08-20 歌尔股份有限公司 扬声器模组及电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657388A (en) * 1979-10-17 1981-05-19 Pioneer Electronic Corp Forming method of sound absorber for speaker cabinet
CN107071668B (zh) * 2017-05-24 2019-08-20 歌尔股份有限公司 扬声器模组及电子设备
CN108235198A (zh) * 2018-02-24 2018-06-29 歌尔股份有限公司 一种扬声器模组及电子设备
CN108989944A (zh) * 2018-08-03 2018-12-11 瑞声光电科技(常州)有限公司 扬声器箱
CN109688511A (zh) * 2019-01-30 2019-04-26 苏州夸克新材料科技有限公司 一种扬声器装置

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