WO2021179237A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

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Publication number
WO2021179237A1
WO2021179237A1 PCT/CN2020/078935 CN2020078935W WO2021179237A1 WO 2021179237 A1 WO2021179237 A1 WO 2021179237A1 CN 2020078935 W CN2020078935 W CN 2020078935W WO 2021179237 A1 WO2021179237 A1 WO 2021179237A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover plate
sound
air
upper cover
wall
Prior art date
Application number
PCT/CN2020/078935
Other languages
English (en)
Chinese (zh)
Inventor
任莉
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 WO2021179237A1 publication Critical patent/WO2021179237A1/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
    • H04R1/20—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 belongs to the technical field of sound generating devices, and particularly relates to a loudspeaker.
  • the speakers in the prior art often fill the inner cavity formed by the upper cover and the lower cover with sound-absorbing materials, but when the sound-producing monomer leaks, the sound-absorbing material enters the sound-producing monomer Internal risks affect the acoustic performance of speakers.
  • the technical problem to be solved by the utility model is to provide a loudspeaker to solve the problem of the existing loudspeaker structure, when the sound-absorbing material is filled into the internal cavity, the sound-absorbing material may enter the sound-producing monomer.
  • a speaker includes an upper cover plate, and a lower cover plate that cooperates with the upper cover plate and forms a receiving space with the upper cover plate.
  • the accommodating space is divided into an upper accommodating space and an air-permeable partition part of the lower accommodating space, a sound emitting monomer arranged in the upper accommodating space, and a sound-absorbing material arranged in the lower accommodating space;
  • the air-permeable isolator includes a support frame that surrounds the sound emitting monomer and is fixed to the upper cover plate or the lower cover plate, and is arranged on the support frame and is directly opposite to the upper cover plate and arranged at intervals
  • the air-permeable net, the support frame and the air-permeable net are injection molded into one body, and the sound-producing monomer is fixed between the air-permeable net and the upper cover plate;
  • the sound-producing unit includes a magnetic circuit system with a magnetic gap and a vibration system supported on the side of the magnetic circuit system away from the air-permeable spacer.
  • the magnetic circuit system is provided with a connection between the magnetic gap and the upper part.
  • the leakage channel of the containing space is communicated with the lower containing space through the air-permeable net.
  • the vibration system includes a voice coil suspended in the magnetic gap and a diaphragm supported on a side of the voice coil away from the magnetic circuit system;
  • the sound-producing unit also includes a basin frame, the basin The frame is sandwiched between the diaphragm and the magnetic circuit system.
  • the air-permeable mesh is a flat metal mesh cloth.
  • the magnetic circuit system and the air-permeable net are bonded and fixed, and the periphery of the vibration system is fixed to the upper cover plate.
  • the upper cover plate includes a top wall, and an upper side wall bent and extended from the top wall toward one side of the lower cover plate and matched with the lower cover plate.
  • the upper cover plate further includes a surrounding wall that is bent from the top wall toward the lower cover plate and extends into the receiving space, and the surrounding wall and the supporting frame are directly opposed to each other and fixed to each other. .
  • the upper cover plate further includes a support wall bent from the top wall toward one side of the lower cover plate to extend into the upper receiving space, and the diaphragm is sandwiched between the support wall and the support wall. Between the basin frame.
  • the diaphragm is separated from the top wall to form a front acoustic cavity, and the upper side wall is provided with a sound outlet channel that communicates the front acoustic cavity with an external space.
  • the lower cover plate includes a bottom wall, and a lower side wall bent and extended from the bottom wall toward one side of the upper cover plate, an end surface of the upper side wall and an end surface of the lower side wall Enclosing.
  • the lower cover plate further includes a limiting protrusion extending from the bottom wall into the lower receiving space, and the air-permeable spacer is sandwiched between the limiting protrusion and the surrounding wall .
  • the magnetic circuit system includes a magnetic bowl fixed to the air-permeable net and a magnet part installed on a side of the magnetic bowl close to the diaphragm, and the magnetic bowl includes a support plate for supporting the magnet part, and The extension arms are partially bent and extended from the edge of the support plate toward the direction of the diaphragm, and the leakage channel is formed between two adjacent extension arms.
  • the voice coil has a racetrack shape, and the leakage channels are formed on both sides of the short axis of the voice coil.
  • the present utility model has the beneficial effect that: in the present utility model, the ventilating isolator restricts the sound-producing monomer in the upper containing space, which can prevent the sound-absorbing material from entering the interior of the sound-producing monomer and thus affect the acoustic effect .
  • the lower receiving space can be used to contain all the sound-absorbing materials, which increases the storage space for the sound-absorbing powder and improves the performance of the loudspeaker.
  • Figure 1 is a perspective view of an embodiment of a loudspeaker of the present invention.
  • Fig. 2 is an exploded view of the speaker shown in Fig. 1.
  • Fig. 3 is a cross-sectional view of the loudspeaker shown in Fig. 1 along the line A-A.
  • Fig. 4 is a cross-sectional view taken along the line B-B of the upper cover and the lower cover of the loudspeaker shown in Fig. 1.
  • Fig. 5 is a cross-sectional view of the loudspeaker shown in Fig. 1 along the line B-B.
  • Fig. 6 is a partial perspective view of the sound emitting unit of the speaker shown in Fig. 1.
  • Fig. 7 is an exploded view of the vocal unit shown in Fig. 6.
  • Fig. 8 is a structural diagram of the upper cover plate of the loudspeaker shown in Fig. 1.
  • Fig. 9 is an enlarged view of part C in Fig. 8.
  • FIG. 1 The embodiment of a loudspeaker provided by the present invention is shown in Figures 1 and 2 and includes an upper cover plate 1, a lower cover plate 2 that cooperates with the upper cover plate 1 and forms a containing space with the upper cover plate 1.
  • the air-permeable spacer 3 is arranged in the receiving space and divides the receiving space into an upper receiving space 51 and a lower receiving space 52, as shown in FIG.
  • Figure 4 is a schematic cross-sectional view of the assembly structure of the upper cover plate 1 and the lower cover plate 2, and the cross-sectional view of the sounding monomer 4 and the upper and lower cover plates after being assembled is shown in Fig. 5.
  • the sound absorbing material 6 is arranged in the lower receiving space 52, as shown in FIG. 3.
  • the air-permeable isolator 3 includes a support frame 32 that surrounds the sound-producing monomer 4 and is fixed to the upper cover plate 1 or the lower cover plate 2, and is covered on the Breathable nets 31 are arranged on the support frame 32 and are directly opposite to the upper cover 1 and spaced apart.
  • the breathable nets 31 can be made of metal mesh cloth or other materials that are breathable and can prevent sound-absorbing material powder from passing through the breathable nets 31.
  • the sounding monomer 4 is arranged in the upper receiving space 51, that is, fixed between the air-permeable net 31 and the upper cover 1.
  • the sound-emitting unit 4 includes a magnetic circuit system 41 with a magnetic gap and a vibration system 42 supported on the magnetic circuit system 41 and far away from the air-permeable spacer 3, and a communication station is provided on the magnetic circuit system 41.
  • the magnetic gap 413 and the leakage channel 53 of the upper receiving space 51 are communicated with the lower receiving space 52 through the air-permeable net 31.
  • the air-permeable net 31 and the support frame 32 are injection molded into one body, and the air-permeable net 31 is preferably flat.
  • the air-permeable spacer 3 restricts the sound-emitting monomer 4 in the upper receiving space 51, which can prevent the sound-absorbing material from entering the inside of the sound-emitting monomer 4 and thereby affect the acoustic effect.
  • the lower receiving space 52 can be used to contain all the sound-absorbing materials, thereby increasing the receiving space for the powder of the sound-absorbing material 6 and improving the performance of the speaker.
  • the embodiment of the vibration system 42 can refer to FIGS. 2, 6 and 7, including a voice coil 421 and a diaphragm 422.
  • the voice coil 421 is suspended at the magnetic gap 413, and the diaphragm 422 is supported on the voice coil 421 far away.
  • One side of the magnetic circuit system 41; the sound unit 4 further includes a basin frame 43, which is sandwiched between the diaphragm 422 and the magnetic circuit system 41.
  • the voice coil 421 may be configured as a racetrack type, specifically including a long shaft 4211 and a short shaft 4212, and the leakage channels are formed on both sides of the short shaft of the voice coil.
  • the magnet part 412 includes a plurality of magnetic steels, and the magnetic steels are spaced apart to form a magnetic gap 413.
  • the magnetic bowl 411 includes a support plate 4111 supporting the magnet portion 412 and an extension arm 4112 that is partially bent and extended from the edge of the support plate 4111 toward the diaphragm 422. Between two adjacent extension arms 4112 The leakage channels 53 are formed at intervals.
  • the magnetic circuit system 41 and the air-permeable net 31 are bonded and fixed, and the periphery of the vibration system 42 is fixed on the upper cover plate 1.
  • the upper cover 1 includes a top wall 11, and an upper side wall 12 that is bent and extended from the top wall 11 toward one side of the lower cover 2.
  • the upper cover 1 is matched with the lower cover plate 2 through the upper side wall 12.
  • the sound channel 15 is arranged on the upper side wall 12. Refer to the cross-sectional views of FIGS. 4 and 5, the diaphragm 422 is separated from the top wall 11 to form a front sound cavity 54, and the sound channel 15
  • the front sound cavity 54 is in communication with the external space of the speaker, so that the sound emitted by the sound emitting unit 4 can be conducted to the outside.
  • the upper cover plate 1 further includes a surrounding wall 13 that is bent from the top wall 11 toward one side of the lower cover plate 2 and extends into the receiving space.
  • the end surface 131 of the surrounding wall 13 is supported on the support frame 32 of the air-permeable partition 3, and the assembly diagrams are shown in Figs. 4 and 5.
  • the upper cover plate 1 further includes a support wall 14 that is bent from the top wall 11 toward one side of the lower cover plate 2 and extends into the upper receiving space.
  • the edge of the sounding monomer 4 is supported on the end surface 141 of the supporting wall 14, as specifically shown in FIG. 5, the diaphragm 422 is sandwiched between the supporting wall 14 and the basin frame 43.
  • the lower cover plate 2 includes a bottom wall 21, and a lower side wall 22 bent and extended from the bottom wall 21 toward one side of the upper cover plate 1.
  • the upper side wall The end surface 121 of 12 is enclosed with the end surface of the lower side wall 22.
  • the assembly diagrams are shown in Figures 4 and 5. Bayonet structure fits.
  • protrusions can be provided on the lower cover plate 2, and the protrusions extend from the bottom wall 21 into the lower receiving space 52 for limiting the position of the air-permeable partition 3 As shown in FIG.
  • the protrusion 23A abuts on the outer edge of the support frame 3 to limit the lateral displacement of the air-permeable spacer 3, and the protrusion 23B is used to heighten the air-permeable spacer 3 and increase the volume of the receiving space 52, so that Accommodate more sound-absorbing materials to improve the sound effect of the speaker.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

La présente invention concerne un haut-parleur, comprenant une plaque de recouvrement supérieure, et une plaque de recouvrement inférieure qui s'adapte à la plaque de recouvrement supérieure et forme un espace de logement avec la plaque de recouvrement supérieure, et comprenant en outre une entretoise perméable à l'air qui divise l'espace de logement en un espace de logement supérieur et un espace de logement inférieur, une unité de production de son prévue dans l'espace de logement supérieur, et un matériau d'absorption de son prévu dans l'espace de logement inférieur. L'entretoise perméable à l'air du modèle d'utilité limite l'unité de production de son dans l'espace de logement supérieur, empêchant ainsi l'impact sur un effet acoustique causé par le matériau absorbant le son entrant à l'intérieur de l'unité de production de son. En outre, en raison du blocage de l'entretoise perméable à l'air, l'espace inférieur de réception peut être entièrement rempli du matériau d'absorption acoustique, ce qui augmente le volume du matériau d'absorption acoustique.
PCT/CN2020/078935 2020-03-09 2020-03-12 Haut-parleur WO2021179237A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020280824.XU CN211959507U (zh) 2020-03-09 2020-03-09 一种扬声器
CN202020280824.X 2020-03-09

Publications (1)

Publication Number Publication Date
WO2021179237A1 true WO2021179237A1 (fr) 2021-09-16

Family

ID=73193642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/078935 WO2021179237A1 (fr) 2020-03-09 2020-03-12 Haut-parleur

Country Status (2)

Country Link
CN (1) CN211959507U (fr)
WO (1) WO2021179237A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024007429A1 (fr) * 2022-07-04 2024-01-11 瑞声光电科技(常州)有限公司 Caisson de haut-parleur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024119339A1 (fr) * 2022-12-06 2024-06-13 瑞声光电科技(常州)有限公司 Caisson de haut-parleur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140355812A1 (en) * 2013-06-03 2014-12-04 Nokia Corporation Shielded Audio Apparatus
CN209897214U (zh) * 2019-04-19 2020-01-03 瑞声科技(新加坡)有限公司 扬声器箱
CN210075488U (zh) * 2019-07-24 2020-02-14 嘉兴宇邦声学科技有限公司 一种扬声器用后腔多层吸音装置
CN210093517U (zh) * 2019-06-30 2020-02-18 瑞声科技(新加坡)有限公司 扬声器箱

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140355812A1 (en) * 2013-06-03 2014-12-04 Nokia Corporation Shielded Audio Apparatus
CN209897214U (zh) * 2019-04-19 2020-01-03 瑞声科技(新加坡)有限公司 扬声器箱
CN210093517U (zh) * 2019-06-30 2020-02-18 瑞声科技(新加坡)有限公司 扬声器箱
CN210075488U (zh) * 2019-07-24 2020-02-14 嘉兴宇邦声学科技有限公司 一种扬声器用后腔多层吸音装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024007429A1 (fr) * 2022-07-04 2024-01-11 瑞声光电科技(常州)有限公司 Caisson de haut-parleur

Also Published As

Publication number Publication date
CN211959507U (zh) 2020-11-17

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