EP2026600A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

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Publication number
EP2026600A1
EP2026600A1 EP07113924A EP07113924A EP2026600A1 EP 2026600 A1 EP2026600 A1 EP 2026600A1 EP 07113924 A EP07113924 A EP 07113924A EP 07113924 A EP07113924 A EP 07113924A EP 2026600 A1 EP2026600 A1 EP 2026600A1
Authority
EP
European Patent Office
Prior art keywords
damper
loudspeaker
modified
improved structure
voice coil
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Withdrawn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
EP07113924A
Other languages
German (de)
English (en)
Inventor
Ko Fe Hsiao
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP07113924A priority Critical patent/EP2026600A1/fr
Publication of EP2026600A1 publication Critical patent/EP2026600A1/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Withdrawn legal-status Critical Current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; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • 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 present invention is related to a loudspeaker, and more particularly, to an improved structure of voice drive materials of the loudspeaker.
  • an electrodynamics loudspeaker of the prior art is essentially of magnetic circuit materials including magnet, U-shaped iron (yoke), washer, and frame; and moving system including damper, cone-paper (cone and surround), voice coil, and dust cap.
  • F-BLI an equation of force, wherein B relates to density of magnetic flux in a magnetic gap; L, length of voice coil conductor; and I, electric current flowing through voice coil
  • a working principle of the loudspeaker involves an electro-magnetic force F that varies when both of strength and direction of electric current flowing through the coil voice change for the voice coil to vibrate back and forth thus to drive the cone-paper to propel the air, and the air in turn serving as a medium to radiate sound waves.
  • a magnetic circuit including a frame of basket 1, and a U-shaped iron (yoke) 2 containing a magnet 3 and a washer 4 disposed beneath the frame of basket 1 is assembled first, and then moving system including a damper 5, a voice coil 6, a cone-paper 7, and a dust cap 8 are glued to the frame of basket 1.
  • the output of sound is achieved by relying upon the cone-paper and the dust cap 8 to drive the air; however, the prior art is found with a major flaw in meeting requirements of certain sound field because that the conventional cone-paper has a poor directivity property.
  • the primary purpose of the present invention is to provide an improved structure of voice drive materials in a loudspeaker that is capable of increasing directivity of sound effects, expanding sound field, and allowing flatter and thinner construction of the entire loudspeaker through mounting a convex diaphragm glued with a voice coil to a modified damper (integrated damper and surround).
  • a frame of basket 10 containing at its center a magnet 12 and enclosed by a U-shape iron (yoke) 14.
  • the frame of basket 10, the magnet 12, and the U-shape iron (yoke) 14 are referred to magnetic circuit materials.
  • a modified damper 18 (an integrated part of the damper and a surround) is adhered to where inside the frame of basket 10, and a convex diaphragm 20 adhered to a voice coil 16 is mounted to where above the modified damper 18 (damper + surround).
  • the voice coil 16, the modified damper 18 (damper + surround) and the convex diaphragm 20 are referred to voice drive materials. Accordingly, with the improved structure, the loudspeaker of the present invention is generally reduced in thickness and provided with expanded directivity.
  • the diaphragm 20 is made in an over, circular, or rectangular (not illustrated) shape to cope with changed style of a speaker system.
  • the modified damper 18 may be made in an oval, circular, or rectangular (not illustrated) shape to cope with changed style of a speaker system.
  • the modified damper 18 has its both ends as two adhesion locations 22, 24 to be adhered to where inside the frame of basket 10 before mounting the diaphragm 20 already adhered with the voice coil 16 to the modified damper 18 for achieving the purpose of supporting those voice drive materials.
  • the modified damper 18 is adhered to the frame of basket 10 by means of three adhesion locations 22, 24, 26 before mounting the convex diaphragm 20 already adhered with the voice coil 16 to the modified damper 18 to achieve the same purpose of supporting those voice drive materials.
  • the modified damper 18 may be made of a single type of material (e.g., fabric, jute, plastic, etc.), or a combination of different materials to attain various properties, e.g., consistence, softness, and suitability.
  • a single type of material e.g., fabric, jute, plastic, etc.
  • a combination of different materials e.g., consistence, softness, and suitability.
  • a loudspeaker according Lo the invention comprises a rigid basket forming a frame, a damper integrally formed by a damper portion and a surround, a voice coil, and a convex diaphragm.
  • the damper is mounted inside the frame.
  • the convex diaphragm is adhered to the voice coil, extends over said damper and is mounted on said damper.
  • This loudspeaker may be modified as described before or indicated in the claims. Preferably, it is made by adhering the damper to the inside of the frame of basket and separately adhering the convex diaphragm to the voice coil. Subsequently the convex diaphragm on which the voice coil is already fixed is mounted on the damper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP07113924A 2007-08-07 2007-08-07 Haut-parleur Withdrawn EP2026600A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07113924A EP2026600A1 (fr) 2007-08-07 2007-08-07 Haut-parleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07113924A EP2026600A1 (fr) 2007-08-07 2007-08-07 Haut-parleur

Publications (1)

Publication Number Publication Date
EP2026600A1 true EP2026600A1 (fr) 2009-02-18

Family

ID=38573439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07113924A Withdrawn EP2026600A1 (fr) 2007-08-07 2007-08-07 Haut-parleur

Country Status (1)

Country Link
EP (1) EP2026600A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015082668A1 (fr) * 2013-12-05 2015-06-11 Devialet Haut-parleur electrodynamique compact a membrane convexe
WO2020029958A1 (fr) * 2018-08-07 2020-02-13 张永春 Disque de centrage à coin arrondi rectangulaire et haut-parleur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935400A (en) * 1974-02-28 1976-01-27 Trio Kabushiki Kaisha Oval dome type speaker
US5701358A (en) * 1994-07-05 1997-12-23 Larsen; John T. Isobaric loudspeaker
JPH10285692A (ja) * 1997-04-09 1998-10-23 Sharp Corp スピーカ用ダンパ
US20030156731A1 (en) * 2002-02-15 2003-08-21 Mineba Co., Ltd. Speaker having spacer ring inside frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935400A (en) * 1974-02-28 1976-01-27 Trio Kabushiki Kaisha Oval dome type speaker
US5701358A (en) * 1994-07-05 1997-12-23 Larsen; John T. Isobaric loudspeaker
JPH10285692A (ja) * 1997-04-09 1998-10-23 Sharp Corp スピーカ用ダンパ
US20030156731A1 (en) * 2002-02-15 2003-08-21 Mineba Co., Ltd. Speaker having spacer ring inside frame

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015082668A1 (fr) * 2013-12-05 2015-06-11 Devialet Haut-parleur electrodynamique compact a membrane convexe
FR3014628A1 (fr) * 2013-12-05 2015-06-12 Devialet Haut-parleur electrodynamique compact a membrane convexe
US9967675B2 (en) 2013-12-05 2018-05-08 Devialet Compact electrodynamic loudspeaker having a convex diaphragm
WO2020029958A1 (fr) * 2018-08-07 2020-02-13 张永春 Disque de centrage à coin arrondi rectangulaire et haut-parleur

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