EP2194729A1 - Haut-parleur avec pièce de génération sonore à grande portée - Google Patents

Haut-parleur avec pièce de génération sonore à grande portée Download PDF

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Publication number
EP2194729A1
EP2194729A1 EP08020898A EP08020898A EP2194729A1 EP 2194729 A1 EP2194729 A1 EP 2194729A1 EP 08020898 A EP08020898 A EP 08020898A EP 08020898 A EP08020898 A EP 08020898A EP 2194729 A1 EP2194729 A1 EP 2194729A1
Authority
EP
European Patent Office
Prior art keywords
speaker
flange
coupled
curved
shaped
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Withdrawn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
EP08020898A
Other languages
German (de)
English (en)
Inventor
Joon-Ho Park
Hyuck-Joon Yoon
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.)
Estec Corp
Original Assignee
Estec Corp
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 Estec Corp filed Critical Estec Corp
Priority to EP08020898A priority Critical patent/EP2194729A1/fr
Publication of EP2194729A1 publication Critical patent/EP2194729A1/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Withdrawn legal-status Critical Current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 present invention relates to a speaker with a sound generation part of a large area.
  • a speaker is an electromechanical device converting an electric signal into vibration of a diaphragm such that a longitudinal wave is generated in air, thereby sound wave radiates.
  • FIGS. 1A and 1B are sectional views of a conventional speaker.
  • a frame 11 includes an opened top and a bottom portions, a through-hole 11 a is formed on a middle portion of the bottom portion of the frame 11.
  • the frame 11 includes a horizontal flange part 13 on a top portion and a vertical flange part 15 extending toward the top at the outer circumference of the horizontal flange part 13.
  • a sound generation part 21 is coupled to the horizontal flange part 13.
  • the sound generation part 21 includes an edge 22 and a diaphragm 23.
  • the edge 22 has a ring shape and the bottom of the outer circumference is coupled to the horizontal flange part 13.
  • the diaphragm 23 has a cone shape and is coupled to the bottom of the inner circumference of the edge 22. Therefore, when power is applied to a voice coil 31, the voice coil 31 vibrates, which is caused due to electromagnetic force generated between the voice coil 31 and a magnetic circuit part (not shown).
  • the magnetic circuit part is coupled to the bottom portion of the frame 11 near the through-hole 11 a. Consequently, the sound generation part 21 vibrates, thereby generates a sound.
  • a middle and bass range sound quality is determined according to the area of the sound generation part 21, i.e., the diameter of the sound generation part 21.
  • the outer circumference of the diaphragm 23 is coupled to the horizontal flange part 13 and thus the diameter of the sound generation part 21 shortens by a portion of the edge 22, which contacts the horizontal flange part 13. Therefore, the middle and bass range sound quality is reduced by a shortened area of the sound generation part 21.
  • Korean Patent Publication No. 2003-66822 discloses "SPEAKER SURROUND STRUCTURE MAXIMIZING CONE DIAMETER", in which the top at the outer circumference of skirt 16a in a surround-suspension 16 combines with the inner surface at an top of a basket 10.
  • the outer circumference of the skirt 16a in the surround-suspension 16 which vibrates up and down, contacts the inner surface of the top of the basket 10. Therefore, the contact portions of the basket 10 and the skirt 16a are mutually pressed, such that it is difficult to attach to each other.
  • the surround-suspension 16 may be torn down, due to crack of the attached portion between the basket 10 and the skirt 16a while moving the surround-suspension 16.
  • An object of the present invention is to provide a speaker capable of improving a sound quality in middle and bass range.
  • Embodiments of the present invention provide a speaker including: a frame including a ring-shaped flange part, a cone-shaped receiving part, and a ring-shaped protrusion part, the cone-shaped receiving part extending toward one side of a vertical direction of the flange part at the inner circumference of the flange part, the ring-shaped protrusion part protruding in a direction opposite to the receiving part at the outer circumference of the flange part; a sound generation part including an edge and a diaphragm, the edge having a ring-shaped curved part and a flat part, the ring-shaped curved part coupling the inner surface at the outer end part to the outer circumference of the protrusion part, the flat part protruding from the inner end part of the curved part, the diaphragm having the outer circumference coupled to the flat part; a magnetic circuit part coupled to the receiving part and generating a magnetic force; and a voice coil coupled to the diaphragm and vibrating through an operation
  • a speaker in other embodiments of the present invention, includes: a frame including a ring-shaped flange part and a cone-shaped receiving part, the flange part having a step at the outer circumference of one surface, the receiving part extending at the other surface of the flange part; a sound generation part including an edge and a diaphragm, the edge having a ring-shaped combination part, a ring-shaped connection part, a ring-shaped curved part, and a ring-shaped flat part, the combination part being coupled to the step of the flange part, the connection part extending toward the inner of the frame at one side of the combination part corresponding to the one surface of the flange part, the curved part extending at the inner circumference of the connection part, the flat part extending at the inner circumference of the curved part, the diaphragm having the outer circumference coupled to the flat part; a magnetic circuit part coupled to the receiving part and generating a magnetic force; and a voice coil coupled to the diaphrag
  • FIGS. 1A and 1B are sectional views of a conventional speaker
  • FIG. 2 is a sectional view of a speaker according to a first embodiment of the present invention
  • FIG. 3 is an enlarged view of section A of FIG. 2 ;
  • FIGS. 4 through 7B are views of a structure combining a frame and a sound generation part in a speaker according to second through eighth embodiments of the present invention.
  • FIG. 8 is a sectional view of a speaker according to a ninth embodiment of the present invention.
  • FIG. 9 is an enlarged view of section B of FIG. 8 ;
  • FIGS. 10 through 14 are views of a structure combining a frame and a sound generation part in a speaker according to tenth through fourteenth embodiments of the present invention.
  • FIG. 2 is a sectional view of a speaker according to a first embodiment of the present invention.
  • FIG. 3 is an enlarged view of section A of FIG. 2 .
  • the speaker of the first embodiment includes a ring-shaped flange part 111 and a receiving part 113.
  • the receiving part 113 extends toward one side of a vertical direction of the flange part 111 to roughly form a cone shape, and includes a through-hole 113a in the middle portion.
  • one side and one surface in a vertical direction of the flange part 111 are regarded as the bottom and the lower, and the other side and the other surface in the vertical direction of the flange part 111 are regarded as the top and the upper.
  • the top and bottom and the upper and lower of other components are named in correspondence to the flange part 111.
  • a ring-shaped plate 121 is coupled to the bottom of the receiving part 113 outside the through-hole 113a.
  • a magnet 123 is coupled to the bottom of the plate 121, and a yoke 125 is coupled to the magnet 123.
  • the yoke 125 includes a flange part 125a and a protruding 125b.
  • the flange part 125a is attached to the bottom of the magnet 123.
  • the protruding 125b protrudes from the middle of the flange part 125a toward the top to pass through the magnet 123 and the plate 121.
  • the plate 121, the magnet 123, and the yoke 125 constitute a magnetic circuit part that generates a magnetic force.
  • a sound generation part 210 including an edge 211 and a diaphragm 215 is coupled to the top of the magnetic circuit part 120.
  • the edge 211 has a ring shape, and includes a curved portion 212 and a flat portion 213.
  • a sectional view of the curved portion 212 has a bulge toward the top.
  • the flat portion 213 extends from the inner end part of the curved portion 212.
  • the diaphragm 215 has a cone shape with a coupling hall in the middle portion, and its outer circumference is coupled to the flat portion 213.
  • a voice coil 130 including a bobbin 131 and a coil 135 is coupled to the diaphragm 215.
  • the outer circumference of the top the bobbin 131 is coupled to the inner circumference of the coupling hall in the diaphragm 215, and the outer circumference of the bottom of the bobbin 131 is disposed between the protruding portion 121 of the yoke 125 and the plate 121.
  • the coil 135 is coiled into the outer circumference in the bottom of the bobbin 131.
  • the voice coil 130 vibrates up and down, due to an electromagnetic force generated between the coil 135 and the magnetic circuit part 120. Then, the sound generation part 210 vibrates due to the voice coil such that a sound is reproduced.
  • a ring-shaped damper is placed in frame 110 of the bottom of the sound generation part 210.
  • the outer circumference of the damper is coupled to the frame 110, and its inner circumference is coupled to the outer circumference of the bobbin 131.
  • the damper 140 prevents the voice coil 130 from shaking when the voice coil 130 vibrates, thereby preventing the sound generation part 210 from being displaced.
  • a cap 150 is coupled to the top of the voice coil 130 in order to prevent foreign substance from being entered.
  • a terminal plate 161 is installed on one side of the outer surface of the frame 110.
  • the terminal plate 161 includes a tinsel wire 165 connected to the coil 135. An external power is applied to the coil 135 through the tinsel wire 165.
  • the area of the sound generation part 210 i.e., the diameter of the sound generation part 210, needs to be increased.
  • the speaker of the present invention has a structure that lengthens the diameter of the sound generation part 210.
  • the protrusion part 115 of a ring shape protrudes toward the top at the outer circumference of the flange part 111, and the outer end part surface of the curved part 212 in the edge 211 is coupled to the outer end part inner surface of the protrusion part 115 toward the outer of the frame 110.
  • the diameter of the sound generation part 210 lengthens by the length L (referring to FIG. 3 ), which is from the protrusion part 115 to the inner circumference of the flange part 111. Therefore, a bass and middle range sound quality can be improved.
  • the curved part 212 of the edge 211 When pressing the curved part 212 of the edge 211 from the outside of the frame 110 toward the protrusion part 115, the curved part 212 can be closely attached to the protrusion part 115. This makes a manufacturing process easier. Moreover, when the sound generation part 210 vibrates toward the bottom, the curved part 212 can be more firmly attached to the protrusion part 115. Therefore, there is no possibility of the edge 211 disengaging from the protrusion part 115.
  • FIGS. 4 through 7B are views of a structure combining a frame and a sound generation part in a speaker according to second through eighth embodiments of the present invention.
  • the outer circumference of the protrusion part 315 of a frame 310, where a curved part 232 of an edge 231 is attached, is formed in a direction perpendicular to a flange part 311.
  • a protrusion part 232a protruding toward the inner is formed at the outer end part of the curved part 232, where the protrusion part 315 is attached. Due to the protrusion part 232a, an area for attachment between the edge 231 and the flange part 311 of the frame 310 increases. Thus, coherence between the edge 231 and the flange part 311 can be improved.
  • extension parts 252b and 272b are disposed on the outer circumference of the protrusion parts 115 and 315, and extend on the end of the curved parts 252 and 272 in the edges 251 and 271.
  • the extension parts 252b and 272b are coupled to a product in order to firmly attach the speaker to the product while installing the speaker to the product.
  • the extension parts 252b and 272b when a sound generation part including the edges 251 and 271 vibrates, prevent the sound generation part from bumping against the product.
  • fixing members 190 are respectively coupled to the top at the outer circumference of the flange parts 111 and 311 in the outer of protrusion parts 115 and 315 where the edges 211 and 231 are combined.
  • the fixing member 190 is coupled to a product in order to firmly attach the speaker to the product while installing the speaker to the product. And the fixing member 190, when a sound generation part including the edges 211 and 231 vibrates, prevents the sound generation part from bumping against the product.
  • an extension part 282c parallel to the flange part 311 extends toward the outer direction of the flange part 311 at the outer end part of the curved part 282 of the edge 281 in order to couple to the flange part 311.
  • the fixing member 190 is attached to the extension part 282c. This structure may be possible in the first embodiment.
  • a groove-shaped receiving part 292d is formed on the end of the curved part 292 of the edge 291.
  • the bottom end portion of the fixing member 190 is vertically inserted to the receiving part 292d. This structure may be possible in the first embodiment.
  • FIG. 8 is a sectional view of a speaker according to a ninth embodiment of the present invention.
  • FIG. 9 is an enlarged view of section B of FIG. 8 .
  • the speaker of the ninth embodiment includes a ring-shaped flange part 411, and a cone-shaped receiving part 413.
  • the receiving part 413 extends from below a step 411a and includes a through-hole 413a in the middle.
  • a step 411 a is formed on one side of the outer circumference of the flange part 411, and the receiving part 413 extends from the other surface of the flange part 411.
  • a direction where one surface of the flange part 411 is toward and one surface are regarded as the top and upper, and a direction where the other surface is toward and the other surface are regarded as the bottom and lower.
  • the bottom and top and the lower and upper for other components are named in correspondence to the flange part 411.
  • the magnetic circuit part 120 including the plate 121, the magnet 123, and the yoke 125 is coupled to the bottom of the receiving part 413 outside the through-hole 413a.
  • the yoke 125 includes a flange part 125a and a protrusion part 125b.
  • a sound generation part 510 having an edge 511 and a diaphragm 518 is installed on the magnet circuit 120.
  • the edge 511 includes a combination part 512, a connection part 513, a curved part 514, and a flat part 515.
  • the combination part 512 has a ring shape and the inner circumference coupled to the step 411 a of the frame 410.
  • the connection part 513 has a ring shape and extends inward from the top of the combination part 512.
  • the curved part 514 extends at the inner circumference of the connection part 513 to form a ring shape, and its section has a bulge toward the bottom.
  • the flat part 515 extends at the inner circumference of the curved part 514 to form a ring shape.
  • the diaphragm 518 has a cone shape with a coupling hole on the bottom middle portion, and its outer circumference is coupled to the flat part 515.
  • a voice coil 130 is coupled to the inner circumference of the coupling hole in the diaphragm 518.
  • the curved part 514 of the edge 511 expands while the sound generation part 510 vibrates in order to allow vibration of the sound generation part 510.
  • the inner circumference of the combination part 512 at the edge 511 is attached to the step 411 a at the outer circumference of the flange part 411.
  • the diameter of the sound generation part 510 lengthens by the length of the horizontal flange part 13 of frame 10. Therefore, a bass and middle range sound quality can be improved.
  • the edge 511 After attaching the combination part 512 of the edge 511 to the step 411 a of the flange part 411, and then pressing the combination part 512 toward the flange part 411, the edge 511 is pressed to the frame 410 for attachment. This makes a manufacturing process easier.
  • the combination part 512 is more firmly attached to the flange part 411. Therefore, there is no possibility of the edge 511 disengaging from the flange part 411.
  • FIGS. 10 through 14 are views of a structure combining a frame and a sound generation part in a speaker according to tenth through fourteenth embodiments of the present invention.
  • a fixing part 613a protrudes in a predetermined direction toward the top of the connection part 613 of the edge 611.
  • the fixing part 613a is used to fix a speaker to a product, such that the speaker is firmly installed to the product.
  • the fixing part 613a when a sound generation part including the edge 611 vibrates, prevents the sound generation part from bumping against the product.
  • a fixing part 481 is attached to the top of the connection part 633 of the edge 631.
  • the fixing part 481 is used to fix a speaker to a product, such that the speaker is firmly installed to the product.
  • the fixing part 481 when a sound generation part including the edge 631 vibrates, prevents the sound generation part from bumping against the product.
  • an extension part 633b is symmetric to the combination part 632 by using the axis of the connection part 633 as a reference line and extends at the top of the connection part 633 of the edge 631. Additionally, the extension part 633b protrudes in correspondence to the vertical part 632 at the end of the horizontal part 633.
  • a step 483a, where the extension part 633b is coupled, is formed on the outer at the bottom of the fixing part 483.
  • an extension part 652a attached to the flange part 711 protrudes toward the outer direction of the bottom end part of the combination part 652 in the edge 651.
  • the step 485a corresponding to the extension part 652a, the combination part 652, and the connection part 653 are formed at the inner of the bottom end part of the fixing part 485, and the step 485a of the fixing part 485 are coupled to the extension part 652a, the combination part 652, and the connection part 653.
  • a concave part 672b extends at the bottom end part of the combination part 672 of the edge 671.
  • the step 485a corresponding to the concave part 672b, the combination part 672, and the connection part 673 is formed at the inner of the bottom end part of the fixing part 485.
  • the ring-shaped protrusion part is formed at the outer circumference of the flange part in the frame, and the inner of the outer circumference at the edge is coupled to the outer circumference of the protrusion part. Additionally, the inner circumference of the outer end part of the edge is coupled to the step that is formed on the flange part of the frame. Therefore, the diameter of the sound generation part including the edge lengthens, thereby improving middle and bass range sound quality.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP08020898A 2008-12-02 2008-12-02 Haut-parleur avec pièce de génération sonore à grande portée Withdrawn EP2194729A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08020898A EP2194729A1 (fr) 2008-12-02 2008-12-02 Haut-parleur avec pièce de génération sonore à grande portée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08020898A EP2194729A1 (fr) 2008-12-02 2008-12-02 Haut-parleur avec pièce de génération sonore à grande portée

Publications (1)

Publication Number Publication Date
EP2194729A1 true EP2194729A1 (fr) 2010-06-09

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EP08020898A Withdrawn EP2194729A1 (fr) 2008-12-02 2008-12-02 Haut-parleur avec pièce de génération sonore à grande portée

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EP (1) EP2194729A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3001699A1 (fr) * 2014-09-24 2016-03-30 Samsung Electronics Co., Ltd. Haut-parleur et dispositif électronique comprenant celui-ci

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113738U (fr) * 1974-07-18 1976-01-31
JPS5664599A (en) * 1979-10-30 1981-06-01 Ozen Corp Speaker
JPH09327088A (ja) * 1996-04-03 1997-12-16 Matsushita Electric Ind Co Ltd スピーカ
US5949898A (en) * 1995-07-13 1999-09-07 Proni; Lucio Surround for a loudspeaker
WO2002058433A1 (fr) * 2001-01-19 2002-07-25 Harman International Industries, Inc. Structure d'entourage de haut-parleur permettant de maximiser le diametre de cone
US20030047377A1 (en) * 2001-09-13 2003-03-13 Jl Audio, Inc. Loudspeaker with improved mounting structure for the surround
US20040228500A1 (en) * 2003-05-14 2004-11-18 Stiles Enrique M. Axially-aligned coupling of suspension component to acoustical transducer frame enabling oversized diaphragm and improved packing
JP2006229643A (ja) * 2005-02-18 2006-08-31 Minebea Co Ltd スピーカ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113738U (fr) * 1974-07-18 1976-01-31
JPS5664599A (en) * 1979-10-30 1981-06-01 Ozen Corp Speaker
US5949898A (en) * 1995-07-13 1999-09-07 Proni; Lucio Surround for a loudspeaker
JPH09327088A (ja) * 1996-04-03 1997-12-16 Matsushita Electric Ind Co Ltd スピーカ
WO2002058433A1 (fr) * 2001-01-19 2002-07-25 Harman International Industries, Inc. Structure d'entourage de haut-parleur permettant de maximiser le diametre de cone
KR20030066822A (ko) 2001-01-19 2003-08-09 하만인터내셔날인더스트리스인코포레이티드 콘 직경을 최대화하는 스피커 서라운드 구조
US20030047377A1 (en) * 2001-09-13 2003-03-13 Jl Audio, Inc. Loudspeaker with improved mounting structure for the surround
US20040228500A1 (en) * 2003-05-14 2004-11-18 Stiles Enrique M. Axially-aligned coupling of suspension component to acoustical transducer frame enabling oversized diaphragm and improved packing
JP2006229643A (ja) * 2005-02-18 2006-08-31 Minebea Co Ltd スピーカ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3001699A1 (fr) * 2014-09-24 2016-03-30 Samsung Electronics Co., Ltd. Haut-parleur et dispositif électronique comprenant celui-ci
US9609438B2 (en) 2014-09-24 2017-03-28 Samsung Electronics Co., Ltd. Speaker apparatus and electronic device having the same

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