WO2010058543A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

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Publication number
WO2010058543A1
WO2010058543A1 PCT/JP2009/006101 JP2009006101W WO2010058543A1 WO 2010058543 A1 WO2010058543 A1 WO 2010058543A1 JP 2009006101 W JP2009006101 W JP 2009006101W WO 2010058543 A1 WO2010058543 A1 WO 2010058543A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
yoke
speaker
convex portion
peripheral edge
Prior art date
Application number
PCT/JP2009/006101
Other languages
English (en)
Japanese (ja)
Inventor
伊藤哲
田名部毅彦
久世光一
川邊昌志
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2010058543A1 publication Critical patent/WO2010058543A1/fr

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the present invention relates to a speaker used in various audio equipment and information communication equipment.
  • FIG. 5 shows a cross-sectional view of a conventional speaker.
  • the magnetic circuit 4 is configured by holding a rectangular magnet 1 between a yoke 3 and an upper plate 2.
  • the yoke 3 is coupled to the frame 6.
  • a diaphragm 7 is bonded to the peripheral edge of the frame 6.
  • a voice coil 8 for driving the diaphragm 7 is coupled to the diaphragm 7.
  • the voice coil 8 is installed so as to fit into the magnetic gap 5.
  • a synthetic resin protector 9 is coupled to the peripheral edge of the frame 6 so as to cover the diaphragm 7 (for example, Patent Document 1).
  • the above-mentioned speaker has the rectangular magnetic circuit 4, there is an advantage that the space factor can be improved due to the mutual arrangement of components mounted in the system such as a mobile phone to be mounted with the speaker.
  • the body of a device such as a mobile phone is becoming thinner, there is an increasing demand for thinner speakers.
  • the height of the conventional speaker shown in FIG. 5 largely depends on the sum of the height of the yoke 3 and the height of the frame 6.
  • the yoke 3 and the frame 6 are joined by inserting the end of the yoke 3 to the lower end of the inner peripheral edge of the frame 6 and bonding and fixing the yoke 3 and the frame 6.
  • the present invention provides a speaker that can be further reduced in thickness by changing the coupling structure of the yoke and the frame.
  • the present invention is a speaker including a magnetic circuit constituted by a yoke, an upper plate, a magnet sandwiched between the yoke and the upper plate, and a frame coupled to the magnetic circuit.
  • the frame has a second concavo-convex part that fits with the first concavo-convex part at the inner peripheral edge.
  • the height can be reduced and the thickness can be reduced by the thickness of the inner peripheral edge of the frame, compared to the conventional speaker in which the yoke is inserted and fixed to the inner peripheral edge of the frame. it can.
  • FIG. 1 is a cross-sectional view of a speaker according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a state before the assembly of the frame and the yoke in the speaker according to the embodiment of the present invention.
  • FIG. 3 is a perspective view showing an assembled state of the frame, the yoke and the plate in the speaker according to the embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of another speaker according to the embodiment of the present invention.
  • FIG. 5 is a cross-sectional view showing a conventional speaker.
  • FIG. 1 is a cross-sectional view of a speaker according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view showing a state before the assembly of the frame and the yoke in the speaker according to the first exemplary embodiment of the present invention.
  • the speaker according to the present embodiment includes a magnetic circuit 24 and a frame 26 coupled to the magnetic circuit 24.
  • the magnetic circuit 24 is configured by sandwiching a rectangular magnet 21 between a yoke 23 and an upper plate 22.
  • a magnetic gap 25 is provided between the side end of the yoke 23 and the upper plate 22.
  • a diaphragm 27 is coupled to the peripheral edge of the frame 26.
  • a voice coil 28 for driving the diaphragm 27 is coupled to the diaphragm 27.
  • a protector 29 is coupled to the frame 26.
  • a groove 30 is provided in the inner peripheral edge of the frame 26.
  • the yoke 23 is provided with a notch of a first uneven portion at an end portion to form a first concave portion 32 and a first convex portion 31.
  • the frame 26 is provided with a notch of a second concavo-convex portion that fits with the first concavo-convex portion at the inner peripheral edge thereof, and forms a second concave portion 34 and a second convex portion 33.
  • the frame 26 also includes an adhesive reservoir groove 30 along the side surface of the second recess 34 at the inner peripheral edge.
  • FIG. 3 is a perspective view showing an assembled state of the frame, the yoke and the plate in the speaker according to the embodiment.
  • FIG. 4 is a sectional view of another speaker according to the embodiment.
  • the yoke 23 of the rectangular magnetic circuit 24 is inserted into the frame 26 along the inner peripheral edge of the frame 26.
  • the first convex portion 31 and the first concave portion 32 of the first concave and convex portion provided at the end portion of the yoke 23 and the second convex portion of the second concave and convex portion provided at the inner peripheral edge portion of the frame 26 are provided.
  • the part 33 and the second recessed part 34 are assembled so as to fit each other.
  • an adhesive is filled in the groove 30 of the adhesive reservoir provided along the side surface of the second recess 34 at the inner peripheral edge of the frame 26, and the frame 26 and the yoke 23 are joined.
  • the upper surface of the first convex portion 31 at the end of the yoke 23 and the upper surface of the inner peripheral edge of the frame 26 are configured to be in the same plane in the assembled and coupled state. It is preferable.
  • the notch depth of the first concave portion 32 of the first concave and convex portion provided on the yoke 23 is set to the thickness of the second convex portion 33 of the second concave and convex portion provided on the inner peripheral edge portion of the frame 26.
  • the width (L shown in FIG. 3) of the second convex portion 33 of the second concave and convex portion provided on the inner peripheral edge of the frame 26 is the first concave portion 32 of the first concave and convex portion provided on the yoke 23. It is preferable that the width is substantially the same. The width is preferably as small as possible within a range in which the coupling strength between the frame 26 and the yoke 23 can be secured. Specifically, it is more preferable that the length is about one sixth of the longitudinal dimension of the yoke 23.
  • the diaphragm 27 is bonded and fixed to the peripheral edge of the frame 26 assembled and joined in this way. Further, a voice coil 28 for driving the diaphragm 27 is coupled to the diaphragm 27. The voice coil 28 is installed so as to fit into the magnetic gap 25.
  • a protector 29 formed in a rectangular shape so as to cover a part of the diaphragm 27 and the rectangular magnetic circuit 24 is coupled to the frame 26 to complete a thin speaker.
  • the first protrusion 31 and the first recess 32 of the first uneven portion provided at the end of the yoke 23 and the second uneven portion of the second uneven portion provided at the inner peripheral edge of the frame 26 are provided.
  • the upper surface of the first convex portion 31 of the yoke 23 and the upper surface of the inner peripheral edge portion of the frame 26 are flush with each other.
  • the speaker configured to be as described above has been described.
  • the upper surface of the first convex portion 31 at the end of the yoke 23 may be assembled above the upper surface of the inner peripheral edge of the frame 26. In this case, the thickness of the speaker can be further reduced.
  • the speaker according to the present invention is provided with the first convex portion 31 and the first concave portion 32 as the first concave and convex portions at the end of the yoke 23 constituting the magnetic circuit 24 and the inner peripheral edge portion of the frame 26.
  • a second convex portion 33 and a second concave portion 34 which are second concave and convex portions that fit into the first concave and convex portion, and the concave and convex portions 31 and 32 at the end of the yoke 23 and the inner peripheral edge of the frame 26.
  • the concavo-convex parts 33 and 34 of the parts are assembled and assembled together.
  • the height is reduced by the thickness of the inner peripheral edge of the frame 6 without increasing the number of parts, compared to a configuration in which the yoke 3 is inserted and fixed to the inner peripheral edge of the frame 6 in a conventional speaker. And can be thinned.
  • the frame 26 and the yoke 23 can be bonded and fixed from above. Thereby, an assembly process can be simplified more.
  • the above configuration has been described for the rectangular magnetic circuit 24, it can also be applied to a circular magnetic circuit.
  • the thickness of the inner peripheral edge of the frame can be increased without increasing the number of parts. Only the height can be reduced and the thickness can be reduced.
  • the present invention has a structure in which concave and convex notches are provided in the end of the yoke and the inner peripheral edge of the frame and assembled so that they fit together, and a thin speaker can be provided. As a result, it becomes easy to utilize for portable devices such as a cellular phone.

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)

Abstract

L'invention porte sur un haut-parleur présentant une épaisseur réduite qui peut être utilisé pour divers dispositifs acoustiques et dispositifs de communication d'informations. Le haut-parleur comprend : un circuit magnétique formé par une culasse, une plaque supérieure et un aimant pris en sandwich par la culasse et la plaque supérieure ; et un cadre relié au circuit magnétique. La culasse comprend une première partie concave/convexe au niveau de son extrémité. Le cadre comprend une seconde partie concave/convexe au niveau de la périphérie interne, destinée à entrer en contact avec la première partie concave/convexe. Par rapport à un haut- parleur classique présentant une configuration dans laquelle la culasse est insérée dans la périphérie interne du cadre et fixée à celle-ci, le haut-parleur de la présente invention peut présenter une faible épaisseur par réduction de la hauteur du cadre de l'épaisseur de la périphérie interne.
PCT/JP2009/006101 2008-11-18 2009-11-16 Haut-parleur WO2010058543A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008294126A JP5359212B2 (ja) 2008-11-18 2008-11-18 スピーカ
JP2008-294126 2008-11-18

Publications (1)

Publication Number Publication Date
WO2010058543A1 true WO2010058543A1 (fr) 2010-05-27

Family

ID=42197986

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/006101 WO2010058543A1 (fr) 2008-11-18 2009-11-16 Haut-parleur

Country Status (2)

Country Link
JP (1) JP5359212B2 (fr)
WO (1) WO2010058543A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT520363A2 (de) * 2017-10-06 2019-03-15 Sound Solutions Int Co Ltd Schallwandler mit Kragen

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5533667B2 (ja) * 2008-12-25 2014-06-25 三洋電機株式会社 スピーカユニットおよび携帯情報端末
JP5671689B2 (ja) * 2010-07-15 2015-02-18 パナソニックＩｐマネジメント株式会社 スピーカ
JP7398732B2 (ja) * 2020-01-29 2023-12-15 パナソニックＩｐマネジメント株式会社 スピーカ装置、およびスピーカ装置の製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5547798A (en) * 1978-10-02 1980-04-04 Hitachi Ltd Speaker
JP2004128822A (ja) * 2002-10-01 2004-04-22 Sanyo Electric Co Ltd スピーカ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000261887A (ja) * 1999-03-05 2000-09-22 Foster Electric Co Ltd 携帯情報機器用電気音響変換器
JP2003259478A (ja) * 2002-03-01 2003-09-12 Alps Electric Co Ltd 音響装置
JP2004248016A (ja) * 2003-02-14 2004-09-02 Matsushita Electric Ind Co Ltd スピーカとその製造方法
JP4677341B2 (ja) * 2005-12-21 2011-04-27 パイオニア株式会社 スピーカー装置及び携帯電話機
WO2008093728A1 (fr) * 2007-02-02 2008-08-07 Namiki Seimitsu Houseki Kabushikikaisha Actionneur oscillant multifonction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5547798A (en) * 1978-10-02 1980-04-04 Hitachi Ltd Speaker
JP2004128822A (ja) * 2002-10-01 2004-04-22 Sanyo Electric Co Ltd スピーカ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT520363A2 (de) * 2017-10-06 2019-03-15 Sound Solutions Int Co Ltd Schallwandler mit Kragen

Also Published As

Publication number Publication date
JP5359212B2 (ja) 2013-12-04
JP2010124091A (ja) 2010-06-03

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