EP3108666B1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

Info

Publication number
EP3108666B1
EP3108666B1 EP15706384.3A EP15706384A EP3108666B1 EP 3108666 B1 EP3108666 B1 EP 3108666B1 EP 15706384 A EP15706384 A EP 15706384A EP 3108666 B1 EP3108666 B1 EP 3108666B1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
magnet
basket
snap
conical
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
EP15706384.3A
Other languages
German (de)
English (en)
Other versions
EP3108666A1 (fr
Inventor
Jörg Prokisch
Robert Obermaier
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Becker Automotive Systems 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 Harman Becker Automotive Systems GmbH filed Critical Harman Becker Automotive Systems GmbH
Publication of EP3108666A1 publication Critical patent/EP3108666A1/fr
Application granted granted Critical
Publication of EP3108666B1 publication Critical patent/EP3108666B1/fr
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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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 relates to a loudspeaker.
  • the document GB 1 069 120 shows a speaker, wherein a speaker basket is attached to a cone-shaped magnet. From the DE 1 950 188 A1 is a speaker with a loudspeaker basket and a magnet known. In the DE 80 16 205 U1 a speaker is shown with a loudspeaker basket, a top plate and a permanent magnet.
  • the upper plate has hollow rivets for attaching the loudspeaker frame to the upper side, which are formed by impressing recesses on the opposite side of the upper plate.
  • the permanent magnet is glued to the underside of the top plate.
  • the invention is based on the object to provide a loudspeaker that allows the fastest possible production.
  • a speaker with a speaker basket and a magnet is provided.
  • the loudspeaker basket is attached to the magnet.
  • the magnet has a cone-shaped outer surface. If the cone-shaped outer surface is considered part of a truncated cone, can This conical outer surface may also be referred to as a lateral surface.
  • the loudspeaker basket has a conical inner surface.
  • the cone-shaped inner surface is formed to form a press fit with the cone-shaped outer surface of the magnet. In press fit the cone-shaped inner surface of the loudspeaker frame is pressed onto the conical outer surface of the magnet.
  • the magnet has at least one undercut.
  • the loudspeaker basket has a number of snap hooks. In press fit engages at least one snap hook in the undercut.
  • the cone-shaped inner surface of the loudspeaker frame is produced by injection molding.
  • a wall with the conical inner surface and the at least one snap hook of the loudspeaker frame are integrally formed.
  • Wall with the cone-shaped inner surface and the at least one snap hook of the speaker basket made of a plastic material, in particular polycarbonate with 10% glass fiber, formed.
  • a wall thickness of the loudspeaker frame in the region of the conical inner surface is greater than a wall thickness of the snap-action hook.
  • the snap hooks are formed adjacent to the cone-shaped inner surface of the loudspeaker frame.
  • the conical outer surface of the magnet is made by turning.
  • the cone-shaped inner surface of the loudspeaker frame is produced by injection molding.
  • the press fit deforms the material of the loudspeaker frame in the area of the press fit.
  • Fig. 1 is a part of a speaker basket 100 of a speaker in isometric view shown schematically.
  • the loudspeaker basket 100 has a conical inner surface 110.
  • a number snap hooks 101, 102 are formed in the execution of Fig. 1 adjacent to the cone-shaped inner surface 110.
  • the snap hooks 101, 102 are in the execution of Fig. 1 arranged rotationally symmetrical.
  • the snap hooks 101, 102 are in the execution of Fig. 1 arranged adjacent to the cone-shaped inner surface 110 over the entire circumference.
  • the snap hooks 101, 102 may be made of an elastic material, such as plastic or metal.
  • the snap hooks 101, 102 are in an embodiment of Fig. 1 made of the same material as a wall in the region of the conical inner surface 110 of the loudspeaker frame 100.
  • the material of the speaker basket 100 is for example metal or plastic.
  • the conical inner surface 110 and the snap hooks 101, 102 of the loudspeaker basket 100 are formed of the plastic polycarbonate with 10% glass fiber.
  • the in Fig. 1 shown part of the speaker basket is made for example by injection molding.
  • the snap hooks 101, 102 have an elasticity for a snap function.
  • FIG. 2 a schematic sectional view through a part of a loudspeaker basket 100 is shown.
  • a conical inner surface 110 of the loudspeaker frame 100 may also be referred to as a lateral surface in the sense of a truncated cone.
  • the angle ⁇ 1 (half the opening angle) between the generatrix line and the cone axis is for example 4 °.
  • the angle ⁇ 2 between a snap hook 101 and the cone axis is for example 10 °.
  • a magnet 200 of a loudspeaker in sectional view is shown schematically.
  • the magnet 200 consists of a material for a permanent magnet, for example of ferrous metals and rare earth metals.
  • the magnet 200 is rotationally symmetrical.
  • the magnet 200 has a cone-shaped outer surface 210.
  • the conical outer surface 210 of the magnet 200 is in the embodiment of Fig. 3 made by turning.
  • the conical outer surface 210 of the magnet 200 may also be referred to as a lateral surface in the sense of a truncated cone.
  • the angle ⁇ 1 (half the opening angle) between the generatrix line and the cone axis is, for example, 3 °.
  • the angle ⁇ 1 (half the opening angle) between the generatrix and cone axis of the magnet 200 is smaller than the angle ⁇ 1 (half the opening angle) between the generatrix and cone axis of the loudspeaker frame 100.
  • Between the lateral surface 210 and an undercut 230 extends a further lateral surface 220.
  • the angle ⁇ 2 (half the opening angle) between the generatrix of the further lateral surface 220 and the cone axis is greater than the angle ⁇ 1 .
  • the cone-shaped outer surface 220 of the magnet 200 and the conical inner surface 110 of the loudspeaker frame 100 are provided for a conical interference fit.
  • the loudspeaker basket 100 is slipped with its opening over the magnet 100 from the side opposite to a shoulder 250 of the magnet 200.
  • the magnet 200 has at least one undercut 230.
  • the undercut 230 is rotationally symmetrical.
  • the undercut 230 is generated, for example, by turning.
  • the undercut 230 is associated with the snap hook 101, 102 of the loudspeaker basket 100, wherein the snap hooks 101, 102 engage in the undercut 230 in the mounted state of the press fit.
  • the magnet 200 has a plurality of undercuts, thereby causing a plurality of latching positions. Deviating from the execution of Fig.
  • the loudspeaker basket 100 has a plurality of snap hooks 101, 102 with stepped lengths, so that a plurality of latching positions are also effected, wherein not all snap hooks engage. As a result, tolerances in the production of the magnet 200 and the speaker basket 100 can be compensated.
  • Fig. 4 1 shows a schematic detail sectional view of the loudspeaker basket 100 fastened to the magnet 200 by means of press fit 150.
  • a shoulder 250 of the magnet forms a stop for the loudspeaker basket 100.
  • An adhesive 300 can optionally additionally be provided between the shoulder 250 and the loudspeaker basket 100.
  • the conical inner surface 110 of the loudspeaker frame 100 is made Fig. 1 the conical outer surface 210 of the magnet 200 from Fig. 3 facing.
  • the magnet 200 in the region of the conical outer surface 210 of a harder material than a wall 120 of the loudspeaker frame 100 in the region of the conical inner surface 110.
  • the plastic of the wall 120 of the loudspeaker basket 100 is deformed in the press fit 150.
  • a snap hook 101 of the speaker basket 100 engages in the undercut 230 of the magnet 200.
  • the snap hook 101 is formed from an elastic material, such as plastic.
  • the snap hook 101 is formed integrally with the wall 120 of the speaker basket 100 of a plastic material.
  • a wall thickness of the snap hook 101 is significantly smaller than the wall thickness of the wall 120. Inadvertent release of the attachment between magnet 200 and loudspeaker basket 100 is effectively secured by snapping the snap hook 101 into the undercut 230. For the desired release, the snap hook 101 would first have to be brought out of the undercut 230.
  • the invention is not limited to the illustrated embodiments of the FIGS. 1 to 4 limited.
  • the functionality of the fastening medium press fit according to Fig. 4 can be used particularly advantageously for a center speaker.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (8)

  1. Haut-parleur
    - avec un saladier de haut-parleur (100), et
    - avec un aimant (200),
    - dans lequel le saladier de haut-parleur (100) est fixé à l'aimant (200),
    dans lequel
    - l'aimant (200) présente une surface extérieure conique (210),
    - le saladier de haut-parleur (100) présente une surface intérieure conique (110), qui est réalisée pour la réalisation d'un ajustement serré (150) avec la surface extérieure conique (210) de l'aimant (200),
    caractérisé en ce
    - que l'aimant (200) présente une contre-dépouille (230), et
    - que le saladier de haut-parleur (100) présente un nombre de crochets d'encliquetage (101, 102), dans lequel au moins un crochet d'encliquetage (101, 102) entre en prise dans la contre-dépouille (230) par ajustement serré (150).
  2. Haut-parleur selon la revendication 1,
    caractérisé en ce
    qu'une paroi avec la surface intérieure conique (110) et le crochet d'encliquetage (101, 102) du saladier de haut-parleur (100) sont formés d'un seul tenant.
  3. Haut-parleur selon la revendication 2,
    caractérisé en ce
    qu'une épaisseur de paroi du saladier de haut-parleur (100) dans la zone de la surface intérieure conique (110) est supérieure à une épaisseur de paroi du crochet d'encliquetage (101, 102).
  4. Haut-parleur selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que la surface intérieure conique (110) et le crochet d'encliquetage (101, 102) du saladier de haut-parleur (100) sont réalisés en une matière plastique, en particulier en polycarbonate avec 10 % de fibre optique.
  5. Haut-parleur selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que le crochet d'encliquetage (101, 102) est réalisé de manière adjacente à la surface intérieure conique (110) du saladier de haut-parleur (100).
  6. Haut-parleur selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que la surface extérieure conique (210) de l'aimant (200) est fabriquée par tournage.
  7. Haut-parleur selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que la surface intérieure conique (110) du saladier de haut-parleur (100) est fabriquée par moulage par injection.
  8. Haut-parleur selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que l'aimant (200) présente dans la zone de la surface extérieure conique (210) un matériau plus dur que le saladier de haut-parleur (100) dans la zone de la surface intérieure conique (110).
EP15706384.3A 2014-02-19 2015-02-05 Haut-parleur Active EP3108666B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201420001433 DE202014001433U1 (de) 2014-02-19 2014-02-19 Lautsprecher
PCT/EP2015/052454 WO2015124437A1 (fr) 2014-02-19 2015-02-05 Haut-parleur

Publications (2)

Publication Number Publication Date
EP3108666A1 EP3108666A1 (fr) 2016-12-28
EP3108666B1 true EP3108666B1 (fr) 2018-01-24

Family

ID=52589341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15706384.3A Active EP3108666B1 (fr) 2014-02-19 2015-02-05 Haut-parleur

Country Status (5)

Country Link
US (1) US10015611B2 (fr)
EP (1) EP3108666B1 (fr)
CN (1) CN106416287B (fr)
DE (1) DE202014001433U1 (fr)
WO (1) WO2015124437A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115209332B (zh) * 2022-07-08 2023-03-10 汕头市雅威机电实业有限公司 一种高空气耦合度扬声器棉条吸附卷曲贴合设备及其贴合方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH265675A (de) 1946-10-21 1949-12-15 Ericsson Telefon Ab L M Elektrodynamische Anordnung zur Umwandlung von Schallschwingungen in elektrische Schwingungen oder umgekehrt.
FR1375202A (fr) 1963-09-02 1964-10-16 Radiotechnique Fixation de pièces empilées, plus spécialement des pièces d'un haut-parleur
GB1219918A (en) 1968-08-08 1971-01-20 Standard Telephones Cables Ltd Improvements in and relating to moving coil transducers
DE1950188B2 (de) 1969-10-04 1972-01-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung zum befestigen eines lautsprechers
US4281224A (en) * 1980-04-21 1981-07-28 Sparkomatic Corporation Grille covered speaker assembly construction for compact automobiles and the like
DE8016205U1 (de) 1980-06-19 1980-09-25 Thyssen Edelstahlwerke Ag, 4000 Duesseldorf Oberplatte fuer lautsprechermagnete
DE4031742A1 (de) * 1990-10-06 1992-04-09 Nokia Unterhaltungselektronik Kalotten-hochton-lautsprecher
EP0507324A3 (en) * 1991-04-05 1993-07-28 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Composite molding of resin-bonded magnet for machine parts and process for producing the same
DE9113037U1 (fr) * 1991-10-19 1992-01-09 Nokia Unterhaltungselektronik (Deutschland) Gmbh, 7530 Pforzheim, De
US5431367A (en) * 1992-08-28 1995-07-11 General Electric Company Multilayer injection molds having improved surface properties
JP4106858B2 (ja) * 2000-06-26 2008-06-25 松下電器産業株式会社 スピーカユニット
JP2002247689A (ja) * 2001-02-16 2002-08-30 Citizen Electronics Co Ltd スピーカ
JP4600037B2 (ja) * 2004-12-27 2010-12-15 パナソニック株式会社 スピーカ
JP2006261962A (ja) * 2005-03-16 2006-09-28 Pioneer Electronic Corp スピーカ装置
WO2010013338A1 (fr) * 2008-07-31 2010-02-04 パイオニア株式会社 Appareil haut-parleur et automobile

Also Published As

Publication number Publication date
WO2015124437A1 (fr) 2015-08-27
US10015611B2 (en) 2018-07-03
CN106416287A (zh) 2017-02-15
US20170055094A1 (en) 2017-02-23
CN106416287B (zh) 2019-11-05
DE202014001433U1 (de) 2015-02-20
EP3108666A1 (fr) 2016-12-28

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