EP3637787B1 - Lautsprecherbox, die ein gehäuse aus monoblock-kunststoffmaterial umfasst - Google Patents

Lautsprecherbox, die ein gehäuse aus monoblock-kunststoffmaterial umfasst Download PDF

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Publication number
EP3637787B1
EP3637787B1 EP19201767.1A EP19201767A EP3637787B1 EP 3637787 B1 EP3637787 B1 EP 3637787B1 EP 19201767 A EP19201767 A EP 19201767A EP 3637787 B1 EP3637787 B1 EP 3637787B1
Authority
EP
European Patent Office
Prior art keywords
shell
acoustic speaker
along
armature
loudspeakers
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP19201767.1A
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English (en)
French (fr)
Other versions
EP3637787A1 (de
Inventor
Emmanuel Nardin
Antonio Oliveira
Jérémy Beigeaud
Max RAINER
Nicolas REGENTÊTE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Devialet SA
Original Assignee
Devialet SA
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 Devialet SA filed Critical Devialet SA
Publication of EP3637787A1 publication Critical patent/EP3637787A1/de
Application granted granted Critical
Publication of EP3637787B1 publication Critical patent/EP3637787B1/de
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/026—Supports for loudspeaker casings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2892—Mountings or supports for transducers
    • H04R1/2896—Mountings or supports for transducers for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/022—Cooling arrangements

Definitions

  • the speakers are fixed to separate portions of the shell, for example by screws. Then, the separate portions are assembled together to form the shell and place the two speakers in their head-to-tail position.
  • the shell has assembly marks, such as joints, which are visible to the eye or touch by a user of the loudspeaker, especially when the latter is compact.
  • assembly marks are sometimes considered unsightly, as they detract from the smooth appearance of the loudspeaker.
  • the enclosure comprises a shell shown on page 9, and a back plate shown on page 8.
  • the plate closes an access opening in the shell which forms a chassis (page 3, middle of the page).
  • US 4,805,221 discloses two speakers placed head to tail to limit the vibrations of the cabinet of an acoustic speaker.
  • FR 3 012 716 A1 relates to the acoustic enclosure described in Mr. Michael Brown's article.
  • CN 207 910 991 U describes an acoustic enclosure of generally tubular shape.
  • the aim of the invention is to propose an acoustic enclosure having a smoother appearance, generally perceived as more aesthetic by a user.
  • the invention relates to an acoustic enclosure according to claim 1.
  • the acoustic enclosure comprises one or more of the characteristics corresponding to claims 2 to 9, taken in isolation or in all technically possible combinations.
  • the acoustic speaker 1 is for example an active speaker, that is to say that it comprises an audio signal reader and an amplifier (not shown, just as other electrical or electronic elements of the speaker that are not relevant to explaining the invention are not shown).
  • the acoustic enclosure rests on a preferably horizontal surface S.
  • the acoustic enclosure has, for example, a generally oblong shape along a longitudinal axis L, which advantageously forms an angle with the surface S, as visible on the Figure 3
  • the acoustic enclosure thus has a front part 3 and a rear part 5 along the longitudinal axis L, the front part being higher than the rear part relative to the surface S.
  • the acoustic enclosure comprises a metal frame 7, and a plastic shell 9 fixed on the frame, the shell defining at least two openings 11A and 11B.
  • the acoustic enclosure comprises two bass loudspeakers 13A and 13B (only one of which is visible on the Figure 1 ) arranged head to tail along a transverse axis T, for example perpendicular to the longitudinal axis L.
  • the two loudspeakers 13A and 13B extend respectively across the openings 11A and 11B.
  • basic speaker is meant a speaker adapted to diffuse sound waves of frequencies lower than 1000 Hz, preferably lower than 500 Hz, even more preferably lower than 150 Hz.
  • the acoustic enclosure 1 advantageously comprises a third loudspeaker (not shown), for example fixed in a housing 15 formed by the shell 9 in the front part 3.
  • the acoustic enclosure comprises two metal inserts 17A and 17B, advantageously symmetrical to each other with respect to a plane P perpendicular to the transverse axis T and containing the longitudinal axis L, and one of which is shown on the Figure 7 .
  • the acoustic enclosure has a symmetrical external appearance with respect to this plane P.
  • the third loudspeaker (not shown) located in the housing 15 is for example centered on the longitudinal axis L.
  • it is suitable for broadcasting sound waves of frequencies ranging from 300 Hz to 20 kHz, or even from 150 Hz to 40 kHz.
  • the frame 7 is advantageously a casting, for example made of aluminum.
  • the frame 7 comprises an external part 19 forming the rear part 5 of the acoustic enclosure, and an internal part 21 integral with the external part and extending along the plane P.
  • the external part 19 comprises a rear portion 25 comprising a plurality of fins 27 ( Figure 6 ) adapted to evacuate the heat released in the internal volume 23 during operation of the acoustic enclosure.
  • the external part 19 also comprises a sole 29 which extends under the loudspeakers 13A, 13B along the longitudinal axis L from the rear portion 25.
  • the external part 19 of the frame and the shell 9 are adapted to fit into each other along the longitudinal axis L.
  • the external part 19 When viewed along the transverse axis T, the external part 19 advantageously has a general “U” shape.
  • One of the branches of the “U” is formed by the sole 29 and is for example larger than the other branch.
  • the fins 27 are for example parallel to the plane P, and advantageously delimited by a spherical envelope 31 ( Figure 6 ) of the same curvature as the front part 3 of the acoustic enclosure.
  • the external part 19 has a curvilinear edge 33 defining a groove 35 in which a seal 37 forming a loop is arranged.
  • the curvilinear edge 33 is adjacent to a curvilinear edge 39 of the shell 9, the sealing gasket 37 being disposed between the two curvilinear edges 33 and 39.
  • the internal part 21 forms a support for fixing the two loudspeakers 13A, 13B and the shell 9.
  • the internal part 21 defines for example an orifice 41 ( Figure 2 ) adapted to fix the loudspeaker 11B on the internal part 21.
  • a screw (not shown) is screwed into the loudspeaker 11B through the hole 41.
  • the internal part 21 defines a surface 43 on which the loudspeaker 11A is for example glued.
  • the shell 9 is a single-piece.
  • single-piece is meant that the shell 9 is a single piece; it does not include parts attached to each other by mechanical means.
  • the shell 9 is advantageously fixed to the internal part 21 by a single screw/nut system, comprising a stud 45 fixed to the internal part, and a nut 47 screwed onto this stud.
  • One or more washers 49 are threaded onto the stud 45 between the shell 9 and the internal part 21 to adjust the axial spacing between these two parts.
  • the shell 9 comprises, successively along the longitudinal axis L, a front part 51 forming a portion of a sphere, an intermediate part 53 forming a portion of a cylinder, and two rear walls 55A, 55B located longitudinally at the rear of two membranes 57A, 57B.
  • the hull 9 also includes a skirt 59 ( Figure 4 ) located under the loudspeakers 13A, 13B and partially masking the sole 29 of the frame 7.
  • the front part 3 of the acoustic enclosure is at least partially formed by the shell 9.
  • the hull 9 has a general “U” shape when viewed along a view axis E, orthogonal to the longitudinal axis L and to the transverse axis T.
  • the front portion 51 defines the aforementioned housing 15.
  • the portion of the sphere formed by the front portion 51 is centered on a point located on the longitudinal axis L.
  • the cylinder portion formed by the intermediate part 53 is centered on the longitudinal axis L.
  • the rear walls 55A, 55B are for example parallel to the plane P.
  • the rear walls define two rails 61A, 61B on the curvilinear edge 39 ( figures 5 And 6 ).
  • the rails 61A, 61B are respectively received in grooves 63A, 63B defined by the curvilinear edge 33 of the external part 25 of the frame.
  • the rails 61A, 61B and the corresponding grooves 63A, 63B are for example circular in view along the transverse axis T.
  • the shell 9 comprises an inner layer 65 ( figures 5 And 6 ), delimiting the internal volume 23, and an external layer 67, or appearance layer, visible from the outside of the acoustic enclosure.
  • the inner layer 65 is thicker than the outer layer 67.
  • the inner layer comprises, for example, polycarbonate (PC) reinforced with 15% to 25% by mass of glass fibers.
  • the outer layer 67 is for example made of acrylonitrile butadiene styrene (ABS).
  • the inserts 17A, 17B are advantageously structurally identical to each other. They are arranged symmetrically, as already stated, on either side of the plane P. Also, only the insert 17A will be described below with reference to the Figure 7 .
  • the insert 17A is advantageously made of stainless steel.
  • the insert is made from a metal sheet, for example having a thickness of between 0.6 mm and 1.5 mm.
  • the insert 17A comprises a circular part 69 located in an edge 71 of the shell 9 delimiting the opening 11A, and an adjacent part 73 located in the rear wall 55A.
  • the role of the circular part is to stiffen the edge of the shell 9 delimiting the opening 11A.
  • the loudspeakers 13A, 13B are rigidly fixed on the internal part 21 of the frame 7, and are devoid of any rigid connection with the shell 9 other than that formed by the frame.
  • the edge 71 is cantilevered relative to the loudspeaker 13. The same applies symmetrically with respect to the plane P for the loudspeaker 13B and the edge of the shell delimiting the opening 11B.
  • the adjacent portion 73 stiffens the rear wall 55A. This notably prevents pumping phenomena, i.e. vibrations of the rear wall 55A due to pressure fluctuations in the internal volume 23 caused by the transverse movement of the membranes 57A, 57B of the loudspeakers 13A, 13B.
  • Nut 47 is screwed onto stud 45 to fix the shell to frame 7.
  • the fixing requires a single screw/nut system.
  • the number and thickness of the washers 49 allows the distance between the frame and the shell to be adjusted along the longitudinal axis L.
  • the loudspeaker 13B is then introduced into the internal volume 23 through the opening 11B of the shell along the transverse axis T.
  • the loudspeaker 13B is fixed to the internal part 21 using a screw (not shown) introduced into the orifice 41 and screwed from the opposite side of the internal part 21 relative to the loudspeaker 13B.
  • the loudspeaker 13A is then introduced into the internal volume 23 through the opening 11A along the transverse axis T.
  • the loudspeaker 13A is then glued to the gluing surface 43 of the internal part 21.
  • the loudspeakers 13A, 13B are electrically connected to the amplifier (not shown).
  • the third speaker (not shown) is fixed in housing 15.
  • the assembly of the loudspeaker is easy and the shell 9 has a smoother appearance.

Landscapes

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

Claims (9)

  1. Lautsprecherbox (1), aufweisend:
    - ein Metallgerüst (7),
    - ein Gehäuse (9) aus Kunststoff, die an dem Gerüst (7) befestigt ist, wobei das Gehäuse (9) mindestens zwei Öffnungen (11A, 11B) definiert, und
    - mindestens zwei Lautsprecher (13A, 13B), die entgegengesetzt gemäß einer Querachse (T) angeordnet sind, wobei sich die beiden Lautsprecher (13A, 13B) jeweils quer zu den zwei Öffnungen (11A, 11B) erstrecken,
    dadurch gekennzeichnet, dass:
    - das Gehäuse (9) einteilig ist,
    - das Gehäuse (9) und ein äußerer Teil (19) des Gerüsts (7) geeignet sind, gemäß einer Längsachse (L) ineinander zu passen, wobei der äußere Teil (19) und das Gehäuse (9) zumindest teilweise ein Innenvolumen (23) der Lautsprecherbox (1) definieren,
    - das Gerüst (7) einen inneren Teil (21) umfasst, der sich zwischen den beiden Lautsprechern (13A, 13B) gemäß der Querachse (T) befindet, wobei das Gehäuse (9) am inneren Teil (21) befestigt ist, und
    - die beiden Lautsprecher (13A, 13B) starr am inneren Teil (21) des Gerüsts (7) befestigt sind und vorzugsweise keine andere starre Verbindung mit dem Gehäuse (9) haben als die, die durch das Gerüst (7) gebildet wird.
  2. Lautsprecherbox (1) nach Anspruch 1, die gemäß der Längsachse (L) länglich ist, wobei ein hinterer Teil (5) der Lautsprecherbox (1) durch den äußeren Teil (19) des Gerüsts (7) gebildet ist und ein vorderer Teil (3) der Lautsprecherbox (1) gemäß der Längsachse (L) zumindest teilweise durch das Gehäuse (9) gebildet ist.
  3. Lautsprecherbox (1) nach Anspruch 1 oder 2, wobei das Gehäuse (9) durch ein Schraube-Mutter-System (45, 47), vorzugsweise durch ein einziges Schraube-Mutter-System (45, 47) am inneren Teil (21) befestigt ist.
  4. Lautsprecherbox (1) nach einem der Ansprüche 1 bis 3, wobei das Gehäuse (9) und der äußere Teil (19) des Gerüsts (7) jeweils zwei gekrümmte Ränder (33, 39) aufweisen, wobei die beiden gekrümmten Ränder (33, 39) aneinander anliegen, wobei die Lautsprecherbox (1) eine Dichtung (37) aufweist, die zwischen den beiden gekrümmten Rändern (33, 39) angeordnet ist und eine Schleife bildet, die sich entlang der beiden gekrümmten Ränder (33, 39) erstreckt.
  5. Lautsprecherbox (1) nach einem der Ansprüche 1 bis 4, wobei:
    - das Gehäuse (9) in der Ansicht gemäß einer Sichtachse (E), die orthogonal zur Längsachse (L) und zur Querachse (T) verläuft, eine allgemeine "U"-Form aufweist; und
    - der äußere Teil (19) des Gerüsts (7) in der Ansicht gemäß der Querachse (T) eine allgemeine "U"-Form aufweist.
  6. Lautsprecherbox (1) nach einem der Ansprüche 1 bis 5, wobei die beiden Öffnungen (11A, 11B) jeweils durch zwei vorzugsweise kreisförmige Ränder (71) begrenzt sind, wobei die Lautsprecherbox (1) mindestens zwei Metalleinsätze (17A, 17B) umfasst, die jeweils von den beiden Rändern (71) umformt sind.
  7. Lautsprecherbox (1) nach einem der Ansprüche 1 bis 6, wobei:
    - jeder der beiden Lautsprecher (13A, 13B) eine Membran (57A, 57B) umfasst, die zum Senden der Schallwellen geeignet ist, und
    - das Gehäuse (9) nacheinander gemäß der Längsachse (L) einen vorderen Teil (51), der einen Kugelabschnitt bildet, einen mittleren Teil (53), der einen Zylinderabschnitt bildet, und zwei hintere Wände (55A, 55B) umfasst, die sich längs hinter den Membranen (57A, 57B) der beiden Lautsprecher (13A, 13B) befinden.
  8. Lautsprecherbox (1) nach Anspruch 7, die ferner zwei Metalleinsätze (17A, 17B) umfasst, die jeweils von den hinteren Wänden (55A, 55B) des Gehäuses (9) umformt sind.
  9. Lautsprecherbox (1) nach einem der Ansprüche 1 bis 8, wobei das Gehäuse (9) umfasst:
    - eine innere Schicht (65), die Polycarbonat (PC) und zwischen 15 und 25 Gew.-% Glasfasern aufweist, und
    - eine äußere Schicht (67), die Acrylnitril-Butadien-Styrol (ABS) aufweist.
EP19201767.1A 2018-10-08 2019-10-07 Lautsprecherbox, die ein gehäuse aus monoblock-kunststoffmaterial umfasst Active EP3637787B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859306A FR3087071B1 (fr) 2018-10-08 2018-10-08 Enceinte acoustique comportant une coque en matiere plastique monobloc

Publications (2)

Publication Number Publication Date
EP3637787A1 EP3637787A1 (de) 2020-04-15
EP3637787B1 true EP3637787B1 (de) 2025-04-16

Family

ID=65244178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19201767.1A Active EP3637787B1 (de) 2018-10-08 2019-10-07 Lautsprecherbox, die ein gehäuse aus monoblock-kunststoffmaterial umfasst

Country Status (6)

Country Link
US (1) US10869137B2 (de)
EP (1) EP3637787B1 (de)
JP (1) JP7577439B2 (de)
KR (1) KR102635776B1 (de)
CN (1) CN111010647B (de)
FR (1) FR3087071B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD717341S1 (en) * 2013-06-09 2014-11-11 Apple Inc. Electronic device
FR3165138A1 (fr) * 2024-07-23 2026-01-30 Devialet Enceinte acoustique à deux haut-parleurs tête-bêche radialement fixés sur une âme centrale

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414407C2 (de) * 1984-04-17 1986-02-20 Jürgen 6804 Ilvesheim Quaas Anordnung von Schallwandlern in einer Schallführung, insbesondere für Lautsprecherboxen
JP3175641U (ja) 2012-03-02 2012-05-24 浩一 佐藤 スピーカ装置
FR3012716B1 (fr) 2013-10-30 2016-07-01 Devialet Enceinte acoustique a au moins un haut-parleur a membrane mobile convexe en continuite de forme avec un organe adjacent
FR3015166B1 (fr) 2013-12-18 2017-07-14 Devialet Enceinte acoustique comprenant une paroi externe non conductrice de la chaleur, un haut-parleur electrodynamique et un circuit electronique de commande
SE538743C2 (en) * 2015-02-13 2016-11-08 Keyofd Ab Loudspeaker enclosure with a sealed acoustic suspension chamber
CN205829926U (zh) * 2016-07-25 2016-12-21 广东欧珀移动通信有限公司 一种封闭式音箱
CN206585737U (zh) * 2017-03-23 2017-10-24 深圳纽斯声学系统有限公司 组合阵列式低音箱
CN207910991U (zh) * 2017-10-30 2018-09-25 腾讯科技（深圳）有限公司 智能语音控制音箱

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Publication number Publication date
EP3637787A1 (de) 2020-04-15
JP7577439B2 (ja) 2024-11-05
US10869137B2 (en) 2020-12-15
JP2020061738A (ja) 2020-04-16
CN111010647A (zh) 2020-04-14
KR102635776B1 (ko) 2024-02-08
FR3087071A1 (fr) 2020-04-10
KR20200040201A (ko) 2020-04-17
US20200112797A1 (en) 2020-04-09
FR3087071B1 (fr) 2020-11-06
CN111010647B (zh) 2024-06-21

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