EP0702501A2 - Haut-parleur dynamique avec membrane de centrage - Google Patents

Haut-parleur dynamique avec membrane de centrage Download PDF

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Publication number
EP0702501A2
EP0702501A2 EP95113286A EP95113286A EP0702501A2 EP 0702501 A2 EP0702501 A2 EP 0702501A2 EP 95113286 A EP95113286 A EP 95113286A EP 95113286 A EP95113286 A EP 95113286A EP 0702501 A2 EP0702501 A2 EP 0702501A2
Authority
EP
European Patent Office
Prior art keywords
voice coil
loudspeaker
membrane
stranded wires
dynamic loudspeaker
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.)
Withdrawn
Application number
EP95113286A
Other languages
German (de)
English (en)
Other versions
EP0702501A3 (fr
Inventor
Harald Schröder
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0702501A2 publication Critical patent/EP0702501A2/fr
Publication of EP0702501A3 publication Critical patent/EP0702501A3/fr
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a dynamic loudspeaker with a concentric beads, made of a fabric film, attached to the loudspeaker basket and the voice coil neck centering membrane and with current leads formed from flexible stranded wires for the loudspeaker voice coil.
  • the loudspeaker membrane used for sound generation is movably attached to the voice coil neck and to the edge of the membrane on the loudspeaker basket.
  • a centering membrane made of a fabric film into which concentric beads are pressed is used for suspension on the voice coil neck.
  • the fabric foil In order for the voice coil to be guided securely in the air gap of the magnet system, the fabric foil must be treated with lacquer, otherwise it will not be rigid enough.
  • the air-permeable centering membrane is glued to the voice coil neck and the speaker basket.
  • the power supply for the voice coil takes place via flexible copper strands, which are soldered at one end to a connection terminal provided on the loudspeaker basket and at the other end to a connecting wire of the voice coil and fastened in the wall of the loudspeaker membrane by means of an adhesive.
  • the wire and strand ends fixed on the front of the loudspeaker diaphragm by means of an adhesive as well as the gluing points are clearly visible. However, this optical flaw is not accepted by all users.
  • the invention is based on the object of designing a dynamic loudspeaker in such a way that the front of the loudspeaker membrane has no wires, copper strands or connection points.
  • each of the stranded wires is mechanically attached at one end to the voice coil neck and electrically contacted with a voice coil wire and connected at the other end to a connecting terminal provided on the loudspeaker basket and that the centering membrane on its front and / or rear side is provided with guide channels in which the stranded wires are stored and fastened.
  • a dynamic loudspeaker 1 known per se essentially consists of a magnet system 2, which is not shown, an annular gap, a loudspeaker basket 3, a loudspeaker membrane 4, a voice coil, not shown, which is movably arranged in the annular gap, the voice coil neck 5 protruding from the annular gap with the opening of a centering membrane 6 and glued to the opening of the speaker diaphragm 4 is.
  • the loudspeaker membrane 4 is movably attached to the loudspeaker basket 3 via a flexible bead ring 7.
  • the centering membrane 6 is made of a fabric film into which concentric beads 8 are pressed. It is permeable to air and treated with varnish to achieve the required rigidity.
  • the centering membrane 6 is attached with its outer edge to the speaker basket 3 by gluing.
  • highly flexible copper strands 9, 10 are used, each of which has one end 11, 12 connected to terminals 13, 14 arranged in the loudspeaker basket 3.
  • the copper strands 9, 10 are supported in guide channels formed by cutouts 15, which are provided in the beads 8 of the centering membrane on the front side thereof.
  • the ends 11 '/ 12' of the copper strands 9, 10 facing away from the connecting terminals 13, 14 are each fastened tangentially to the voice coil neck 5 by means of a hard adhesive and are connected to a voice coil wire end 16, 17 by means of a soldered connection.
  • the guide channels located in one plane of the centering membrane 6 each have a semicircular curve.
  • the copper strands 9, 10 mounted in the guide channels are fastened in the beads of the beads 8 with a highly flexible adhesive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP95113286A 1994-09-13 1995-08-24 Haut-parleur dynamique avec membrane de centrage Withdrawn EP0702501A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9414836U DE9414836U1 (de) 1994-09-13 1994-09-13 Dynamischer Lautsprecher mit einer Zentriermembran
DE9414836U 1994-09-13

Publications (2)

Publication Number Publication Date
EP0702501A2 true EP0702501A2 (fr) 1996-03-20
EP0702501A3 EP0702501A3 (fr) 1996-06-05

Family

ID=6913624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113286A Withdrawn EP0702501A3 (fr) 1994-09-13 1995-08-24 Haut-parleur dynamique avec membrane de centrage

Country Status (2)

Country Link
EP (1) EP0702501A3 (fr)
DE (1) DE9414836U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8180097B2 (en) 2008-05-23 2012-05-15 Sennheiser Electronic Gmbh & Co. Kg Dynamic electro-acoustic transducer and earphone

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9414836U1 (de) * 1994-09-13 1994-11-03 Blaupunkt-Werke Gmbh, 31139 Hildesheim Dynamischer Lautsprecher mit einer Zentriermembran

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE432333A (fr) * 1938-01-24
DE2943054C2 (de) * 1979-10-25 1982-09-30 Westra Electronic Gmbh, 8901 Welden Dynamischer Lautsprecher
US4376233A (en) * 1980-12-18 1983-03-08 Sony Corporation Securing of lead wires to electro-acoustic transducers
DE68920956T2 (de) * 1988-11-15 1995-09-21 Kenwood Corp Lautsprecher-Dämpfungsanordnung.
KR970007296B1 (ko) * 1989-04-19 1997-05-07 가부시끼가이샤 켄우드 스피커 배선 구조
US5249236A (en) * 1989-12-01 1993-09-28 Kabushiki Kaisha Kenwood Wiring structure of loudspeaker
JP2791830B2 (ja) * 1990-10-05 1998-08-27 株式会社ケンウッド スピーカ用ダンパー及びその製造法
DE9414836U1 (de) * 1994-09-13 1994-11-03 Blaupunkt-Werke Gmbh, 31139 Hildesheim Dynamischer Lautsprecher mit einer Zentriermembran

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8180097B2 (en) 2008-05-23 2012-05-15 Sennheiser Electronic Gmbh & Co. Kg Dynamic electro-acoustic transducer and earphone

Also Published As

Publication number Publication date
DE9414836U1 (de) 1994-11-03
EP0702501A3 (fr) 1996-06-05

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