EP3637795A1 - Elektrodynamischer lautsprecher, der ein gitter umfasst - Google Patents

Elektrodynamischer lautsprecher, der ein gitter umfasst Download PDF

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Publication number
EP3637795A1
EP3637795A1 EP19201924.8A EP19201924A EP3637795A1 EP 3637795 A1 EP3637795 A1 EP 3637795A1 EP 19201924 A EP19201924 A EP 19201924A EP 3637795 A1 EP3637795 A1 EP 3637795A1
Authority
EP
European Patent Office
Prior art keywords
trellis
loudspeaker
convex membrane
fixed
ring
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.)
Granted
Application number
EP19201924.8A
Other languages
English (en)
French (fr)
Other versions
EP3637795B1 (de
Inventor
Gaël Daveau
Sylvain Coutarel
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 EP3637795A1 publication Critical patent/EP3637795A1/de
Application granted granted Critical
Publication of EP3637795B1 publication Critical patent/EP3637795B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/24—Tensioning by means acting directly on free portions of diaphragm or cone
    • 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
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2207/00—Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
    • H04R2207/021—Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges

Definitions

  • Such speakers are generally used to produce sounds from an electrical signal. It is known that increasing the area of the convex membrane increases the volume of the sounds produced by the loudspeaker.
  • Loudspeakers are known whose membrane is rigid and has a dome shape with its convexity facing outwards.
  • the dome is fixed to the end of a coil-carrying tube along a connecting ring formed in the middle position of the dome.
  • An object of the present invention is to provide a loudspeaker capable of producing good quality sounds at high frequencies, even if the membrane has a large area.
  • the subject of the invention is an electrodynamic loudspeaker of the aforementioned type, in which the trellis comprises an inner ring and an outer coaxial ring connected together by radial pillars and to a fixing ring at one end of the moving part, the convex membrane being fixed in abutment on the internal and external rings.
  • front and rear should be understood with reference to the main direction of propagation of the sounds of a loudspeaker.
  • the front direction corresponds to the outside of the speaker, and the rear direction corresponds to the inside of the speaker.
  • the Figure 1 illustrates an electrodynamic loudspeaker 10. It is advantageously substantially of revolution around an axis AA ′.
  • the loudspeaker 10 comprises a fixed chassis 12, a motor comprising a fixed base 14 connected to the fixed chassis 12 and a mobile assembly 16 movable axially relative to the fixed base 14.
  • the loudspeaker 10 also comprises a convex membrane 18 and a trellis 20 connecting the convex membrane 18 and the moving element 16.
  • the fixed frame 12 is also known by the name “salad bowl”. It includes a bottom 28 and a circumferential wall 30 connecting the bottom 28.
  • the circumferential wall 30 has a frustoconical shape of the axis AA ′ flared towards the front of the loudspeaker 10.
  • the fixed base 14 comprises a yoke 34 on which a magnet 35 is placed.
  • the yoke 34 defines at least one air gap 36.
  • the moving element 16 comprises a cylindrical coil holder 41 of axis AA ′ on the external surface of which an excitation coil 42 is wound.
  • the excitation coil 42 is placed in the air gap 36.
  • the excitation coil 42 is able to oscillate along the axis A-A 'around a balancing position shown in the Figures.
  • the "axial” direction means the direction along the axis A-A '
  • the "radial” direction means a direction perpendicular to the axis A-A'.
  • the convex membrane 18 has a convexity oriented towards the outside of the loudspeaker 10.
  • the convex membrane 18 has the shape of a spherical cap or dome.
  • the convex membrane 18 has a peripheral edge 44.
  • the peripheral edge 44 has a substantially circular shape centered on the axis AA ′.
  • the trellis 20 is generally of axis AA '(the axis AA' visible on the Figures 1 and 3 ). It comprises an internal ring 46, an external ring 48, and a plurality of radial pillars 50 connecting the internal ring 46 and the external ring 48.
  • the trellis 20 also comprises a ring 52 for fixing to one end 53 of the spool holder 41 as well as an axial skirt 54 for connection to an elastic guide ring 56 whose outer periphery is connected to the fixed frame 12.
  • the mesh 20 is formed by injecting a plastic material into a mold and is therefore in one piece.
  • the elastic guide ring 56 is commonly known by the English name "spider”. It is interposed between the circumferential wall 30 and a free end 57 of the axial skirt 54. It is intended to support the axial skirt 54, and by means of this, a set of trellis 20 and the convex membrane 18, on the fixed frame 12.
  • the elastic guide ring 56 extends around the axis AA ′. It extends in a radial plane.
  • the internal and external rings 46, 48 are coaxial.
  • the outer ring 48 is of larger diameter than the inner ring 46.
  • the convex membrane 18 is mechanically fixed in abutment on the internal and external rings 46, 48 by gluing.
  • the external ring 48 is directly fixed to the peripheral edge 44 of the convex membrane 18.
  • the radial pillars 50 are angularly distributed around the axis AA ′. They each extend between the outer ring 48 and the fixing ring 52.
  • the fixing ring 52 has a diameter smaller than that of the internal ring 46.
  • the fixing ring 52 comprises a receiving groove 58 in which is received the end 53 of the reel holder 41 of the moving element 16.
  • the receiving groove 58 is advantageously glued to the reel holder 41.
  • the axial skirt 54 is integral with the radial pillars 50. It projects from the radial pillars 50 to the free end 57 and extends axially opposite the internal and external rings 46, 48. It extends substantially parallel to the axis AA ′, and surrounds it.
  • the axial skirt 54 has a diameter between those of the internal and external rings 46, 48.
  • the trellis 20 has first and second dials 62, 63 separated by a plane BB 'passing through the axis A-A'. As visible on the Figure 3 , the density of radial pillars 50 is greater in the second dial 63 of the trellis 20 than in the first dial 62 of the trellis 20.
  • the first dial 62 of the lattice 20 also comprises at least two conductive blades 64.
  • the conductive blade 64 connects the excitation coil 42 of the movable assembly 16 to a braid 65 of electrical supply.
  • Each conductive strip 64 is received in a radial pillar 50. It crosses this radial pillar 50 and extends into the axial skirt 54.
  • At least one radial pillar 50 comprises an axial slot 66 extending substantially parallel to the axis AA ′.
  • the axial slot 66 includes a first face 68 oriented opposite the axis of the speaker AA 'and a second face 70 oriented towards the axis AA'.
  • the second face 70 of the axial slot 66 is essentially parallel to the first face 68.
  • the axial skirt 54 comprises an axial slot 74 extending substantially parallel to the axis AA ′.
  • the axial slot 74 comprises a first surface 76 oriented opposite the axis A-A 'and a second surface 78 oriented towards the axis A-A'.
  • the second surface 78 of the axial slot 74 is essentially parallel to the first surface 76.
  • the conductive strip 64 has a thin shape. It is advantageously made of copper.
  • the holding section 88 has two holding sections 88, 90 extending axially connected to one another by a perpendicular radial section 92.
  • the holding section 88 is extended by a radial connection section 94 itself connected by welding to a connection tab 95 carried by the coil holder 41 and extending the excitation coil 42.
  • the holding section 90 is extended by an end lug 96 onto which the braid 65 is welded.
  • the holding sections 88, 90 are received in the axial slot 66 and the axial slot 74 respectively.
  • the holding sections 88, 90 each have on its internal face at least a first projection 98, respectively at least a second projection 102, bearing on the first face 68 of the axial slot 66, respectively the first surface 76 of the axial slot 74.
  • the external face of the retaining section 88, respectively of the retaining section 90, is supported on the second face 70 of the axial slot 66, respectively on the second surface 78 of the axial slot 74.
  • the holding sections 88, 90 each also includes at least one locking claw 104 configured to penetrate the trellis 20 so as to prevent the displacement of the conductive strip 64 to the convex membrane 18 in the axial direction.
  • the holding section 88 further comprises a shoulder 106 configured to cooperate with the mesh 20 so as to prevent the displacement of the conductive strip 64 away from the convex membrane 18 in the axial direction.
  • the locking claws 104 and the shoulder 106 therefore jointly block the position of the conductive strip 64 in the axial direction.
  • the retaining section 90 further comprises a shoulder 108 kept at a distance from the trellis 20, the shoulder 108 and the trellis 20 having between them a non-zero clearance substantially equal to 0.8 mm. This game notably prevents the shoulder 108 comes into abutment against the trellis 20 during a possible creep of the trellis 20 which could cause a consequent descent of the conductive strip 64.
  • the end lug 96 is configured to receive the braid 65 for electrical supply. It advantageously has a U shape converging towards the bottom of U to maintain the braid 65 for electrical supply.
  • the trellis 20 comprises at the base of two radial pillars 50 two tabs 110 (one of which is visible on the Figure 6 ) temporarily blocking the braids 65 during assembly of the loudspeaker 10.
  • the tabs 110 define with the radial pillars 50 grooves in which the braids 65 are retained during the handling of the moving element 16 equipped with the trellis 20 and the convex membrane 18 before their mounting in the fixed frame 12 of the loudspeaker 10.
  • the radial pillars 50 are devoid of an axial slot, and the axial skirt 54 is devoid of an axial groove.
  • the second dial 63 of the lattice 20 is also devoid of conductive strip 64.
  • the asymmetrical configuration of the first and second dials 62, 63 of the trellis 20 allows the radial pillars 50 in the first dial 62 to compensate for the weight of the conductive blades 64 arranged in the second dial 63. This allows the first and second dials 62, 63 to have a substantially identical weight so as to obtain a loudspeaker 10 with a good balancing property.
  • the loudspeaker 10 also has an elastic suspension joint 112 for the convex membrane 18.
  • the elastic suspension seal 112 connects an upper end of the circumferential wall 30 to the axial skirt 54 in the vicinity of the outer ring 48.
  • the elastic suspension seal 112 is disposed axially less distant from the convex membrane 18 than the elastic ring guide 56.
  • the elastic suspension joint 112 extends around the axis AA ′. It extends in a radial plane.
  • the elastic suspension joint 112 has, in section along a plane passing through the axis AA ′, a shape in ⁇ , the convexity of ⁇ being turned axially towards the rear of the speaker 10.
  • the elastic suspension joint 112 is airtight.
  • a rigidified fixing of the convex membrane 18 makes it possible to reduce the unwanted resonance modes and thus improves the performance of the speaker 10 when the sounds produced have high frequencies.
  • the conductive strip 64 makes it possible to better maintain the position of the braid 65 of electrical supply relative to the movable assembly 16, which eliminates the need to supply excessively long braids 65 to supply electrical energy to the speaker 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP19201924.8A 2018-10-08 2019-10-08 Elektrodynamischer lautsprecher, der ein gitter umfasst Active EP3637795B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859322A FR3087068B1 (fr) 2018-10-08 2018-10-08 Haut-parleur electrodynamique comportant un treillis

Publications (2)

Publication Number Publication Date
EP3637795A1 true EP3637795A1 (de) 2020-04-15
EP3637795B1 EP3637795B1 (de) 2022-04-06

Family

ID=65685558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19201924.8A Active EP3637795B1 (de) 2018-10-08 2019-10-08 Elektrodynamischer lautsprecher, der ein gitter umfasst

Country Status (6)

Country Link
US (1) US11076236B2 (de)
EP (1) EP3637795B1 (de)
JP (1) JP7461126B2 (de)
CN (1) CN111010656B (de)
DK (1) DK3637795T3 (de)
FR (1) FR3087068B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026082850A1 (fr) * 2024-10-18 2026-04-23 Devialet Haut-parleur électrodynamique comprenant un anneau d'amortissement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3167818A1 (fr) * 2024-10-18 2026-04-24 Devialet Haut-parleur électrodynamique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942794Y2 (ja) * 1980-05-07 1984-12-15 オンキヨー株式会社 ド−ム型スピ−カ−
US4817165A (en) * 1987-01-27 1989-03-28 Amalaha Leonard D Acoustic speaker device with a diaphragm having a spider web type core
FR3014628A1 (fr) * 2013-12-05 2015-06-12 Devialet Haut-parleur electrodynamique compact a membrane convexe

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3942813B2 (ja) * 2000-08-03 2007-07-11 パイオニア株式会社 スピーカおよびその組立方法
JP2005252924A (ja) * 2004-03-08 2005-09-15 Matsushita Electric Ind Co Ltd スピーカ
JP4328245B2 (ja) 2004-03-19 2009-09-09 パイオニア株式会社 スピーカ装置及びその製造方法
US7970162B2 (en) * 2006-10-03 2011-06-28 Sound Sources Technology, Inc. Loudspeaker bobbin interconnection assembly
JP4851534B2 (ja) * 2006-11-17 2012-01-11 パイオニア株式会社 スピーカ
US8131000B2 (en) * 2007-08-16 2012-03-06 Hi-Tech Sound System Co., Ltd. Cooling arrangement for voice coil of speaker
US20110044491A1 (en) * 2009-08-23 2011-02-24 Plastoform Industries Ltd. Long excursion loudspeaker with closed magnetic circuit and ribbed robbin extending through slotted yoke
GB2480457B (en) * 2010-05-19 2014-01-08 Gp Acoustics Uk Ltd Loudspeaker
CN101841757A (zh) * 2010-06-10 2010-09-22 常州市武进攀特电子有限公司 一种便携式超薄型扬声器
US9467783B2 (en) * 2013-10-25 2016-10-11 Tymphany Worldwide Enterprises Limited Low profile loudspeaker transducer
US9025809B1 (en) * 2014-01-03 2015-05-05 Rockford Corporation Voicecoil affixation
DE102014218427B4 (de) * 2014-09-15 2016-06-02 Kendrion Kuhnke Automotive GmbH Lautsprecher, insbesondere elektrodynamischer Lautsprecher
US20160127832A1 (en) * 2014-10-30 2016-05-05 Meiloon Industrial Co., Ltd. Speaker diaphragm supporting structure
GB2542382A (en) * 2015-09-17 2017-03-22 Gp Acoustics (Uk) Ltd Low-profile loudspeaker
WO2019053714A1 (en) * 2017-09-17 2019-03-21 Mordechai Oren DUAL PROFILE DRIVE WITH LOW PROFILE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942794Y2 (ja) * 1980-05-07 1984-12-15 オンキヨー株式会社 ド−ム型スピ−カ−
US4817165A (en) * 1987-01-27 1989-03-28 Amalaha Leonard D Acoustic speaker device with a diaphragm having a spider web type core
FR3014628A1 (fr) * 2013-12-05 2015-06-12 Devialet Haut-parleur electrodynamique compact a membrane convexe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026082850A1 (fr) * 2024-10-18 2026-04-23 Devialet Haut-parleur électrodynamique comprenant un anneau d'amortissement
FR3167817A1 (fr) * 2024-10-18 2026-04-24 Devialet Haut-parleur électrodynamique comprenant un anneau d’amortissement

Also Published As

Publication number Publication date
CN111010656A (zh) 2020-04-14
FR3087068A1 (fr) 2020-04-10
EP3637795B1 (de) 2022-04-06
JP7461126B2 (ja) 2024-04-03
FR3087068B1 (fr) 2022-01-21
US11076236B2 (en) 2021-07-27
US20200112795A1 (en) 2020-04-09
JP2020078062A (ja) 2020-05-21
DK3637795T3 (da) 2022-07-04
CN111010656B (zh) 2022-09-27

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