DE50015036D1 - Lautsprecher mit einem ummantelten Magnetkern - Google Patents

Lautsprecher mit einem ummantelten Magnetkern

Info

Publication number
DE50015036D1
DE50015036D1 DE50015036T DE50015036T DE50015036D1 DE 50015036 D1 DE50015036 D1 DE 50015036D1 DE 50015036 T DE50015036 T DE 50015036T DE 50015036 T DE50015036 T DE 50015036T DE 50015036 D1 DE50015036 D1 DE 50015036D1
Authority
DE
Germany
Prior art keywords
speaker
magnetic core
jacketed magnetic
jacketed
core
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.)
Expired - Lifetime
Application number
DE50015036T
Other languages
English (en)
Inventor
Johann Lang
Manfred Aigner
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
Application granted granted Critical
Publication of DE50015036D1 publication Critical patent/DE50015036D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
    • 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
    • H04R9/02—Details
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Hard Magnetic Materials (AREA)
DE50015036T 1999-01-23 2000-01-19 Lautsprecher mit einem ummantelten Magnetkern Expired - Lifetime DE50015036D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999102679 DE19902679C1 (de) 1999-01-23 1999-01-23 Lautsprecher

Publications (1)

Publication Number Publication Date
DE50015036D1 true DE50015036D1 (de) 2008-04-24

Family

ID=7895212

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1999102679 Expired - Fee Related DE19902679C1 (de) 1999-01-23 1999-01-23 Lautsprecher
DE50015036T Expired - Lifetime DE50015036D1 (de) 1999-01-23 2000-01-19 Lautsprecher mit einem ummantelten Magnetkern

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1999102679 Expired - Fee Related DE19902679C1 (de) 1999-01-23 1999-01-23 Lautsprecher

Country Status (2)

Country Link
EP (1) EP1022929B1 (de)
DE (2) DE19902679C1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011080606A1 (de) * 2011-08-08 2013-02-14 Sennheiser Electronic Gmbh & Co. Kg Dynamischer elektroakustischer Wandler
JP5724767B2 (ja) * 2011-09-01 2015-05-27 住友金属鉱山株式会社 スピーカ用外磁型磁気回路ユニット及びその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386554B (de) * 1986-08-04 1988-09-12 Treibacher Chemische Werke Ag Verfahren zur herstellung korrosionsbestaendiger, hartmagnetischer pulver fuer die magneterzeugung, magnete aus hartmagnetischem pulver und verfahren zu deren herstellung
DE3730305C1 (de) * 1987-09-10 1989-03-23 Daimler Benz Ag Lautsprecher
JP2970809B2 (ja) * 1987-12-28 1999-11-02 信越化学工業株式会社 希土類永久磁石
US5269855A (en) * 1989-08-25 1993-12-14 Dowa Mining Co., Ltd. Permanent magnet alloy having improved resistance
DE69104858T2 (de) * 1990-02-09 1995-05-24 Matsushita Electric Ind Co Ltd Anisotroper Verbundmagnet auf Basis Nd-Fe-B und Verfahren zur Herstellung.
JP3161673B2 (ja) * 1994-05-30 2001-04-25 松下電器産業株式会社 マイクロスピーカ用磁気回路ユニット及びその製造方法

Also Published As

Publication number Publication date
EP1022929A2 (de) 2000-07-26
EP1022929B1 (de) 2008-03-12
EP1022929A3 (de) 2007-06-13
DE19902679C1 (de) 2000-11-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition