EP1458215A2 - Randringloser Kolbenlautsprecher - Google Patents

Randringloser Kolbenlautsprecher Download PDF

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Publication number
EP1458215A2
EP1458215A2 EP04003091A EP04003091A EP1458215A2 EP 1458215 A2 EP1458215 A2 EP 1458215A2 EP 04003091 A EP04003091 A EP 04003091A EP 04003091 A EP04003091 A EP 04003091A EP 1458215 A2 EP1458215 A2 EP 1458215A2
Authority
EP
European Patent Office
Prior art keywords
damper
forementioned
surroundless
piston
voice
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Withdrawn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
EP04003091A
Other languages
English (en)
French (fr)
Other versions
EP1458215A3 (de
Inventor
Lian Yang
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
Publication of EP1458215A2 publication Critical patent/EP1458215A2/de
Publication of EP1458215A3 publication Critical patent/EP1458215A3/de
Withdrawn legal-status Critical Current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
    • H04R7/16—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
    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/34—Directing or guiding sound by means of a phase plug
    • 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

Definitions

  • the present invention relates to a vibrating speaker in the technical field of electromagnetism and particularly to a surroundless piston-driven vibrating speaker.
  • the surroundless piston-driven vibrating speaker comprises an improved vibrating system, a supporting system, and an external magnet system, wherein the improved vibrating system comprises a voice cone 12 in the shape of "7", a voice coil 4, a central damper 5, wherein the supporting system comprises a shell frame 1 with air vents 10, a floating locating damper 6, a sound absorption cotton material 8, a damper fixing ring and a dust preventing cover 13.
  • the forementioned surroundless piston-driven vibrating speaker wherein the voice coil 4 is a cylindrical voice coil or flat voice coil with a frame, or a no bobbin voice coil without a frame, attached at the top of the inner circle of the cone.
  • the forementioned surroundless piston-driven vibrating speaker wherein the shell frame 1 has one or more air vents 10.
  • the forementioned surroundless piston-driven vibrating speaker wherein the floating locating damper 6 is a wave like plate in the shape of round circle, the outer side of which is attached at the back of the edge of the voice cone12, while the inner side is attached at the upper side of the outer side of the shell 1.
  • the forementioned surroundless piston-driven vibrating speaker wherein the sound absorption cotton material 8 is attached in the empty space between the voice cone12 and the shell 1.
  • the forementioned surroundless piston-driven vibrating speaker wherein the damper fixing ring comprises an upper locating ring 11 and a lower locating ring 9. They have the same inner diameter which is bigger than that of the central damper 5. Their outer diameter is same as that of damper 5.
  • the lower locating ring 9 is attached above the magnet chip 2; the central damper 5 is attached above the lower locating ring 9; the upper locating ring 11 is attached above the central damper 5.
  • the present invention is apparently different from the conventional technical solutions. It employs a voice cone and a voice coil in the vibrating system, a locating damper in the supporting system and a central damper to compose there points (in one) coaxial resonance, and uses multi-level supporting and fixing to ensure that the vibration of speaker generate linear piston movement.
  • the present invention employs surroundless design in the vibrating system, so that it totally gets rid of the constrain of the surround in conventional speakers. It forms coaxial three-points locating linkage sound and directs the whole vibrating system to generate linear sounding movement by connecting the floating locating damper supported from the bottom, the central damper and the voice cone. In the whole voice conformity mechanism, besides the function of locating, the floating locating damper also functions as a second vibration facilitator. It gives the speaker better compliance, and greatly decreases the general damp coefficient. Different from the edge of surround in conventional speaker, which doesn't vibrate when sounding, the special designed voice cone ensures the vibrating sounding of the whole cone and improves the sensitivity and the voice consistency of the whole apparatus.
  • the present invention forms independent mediant voice box after all components installed. There is no need to design the voice box separately. This makes the installation and design flexible and convenient.
  • the air flow inside the speaker is buffered, thus disperses the standing wave and bad back reflect caused by the air flow on the back of the speaker, improves the frequency property of sound absorption cotton to get better frequency curve, and makes the speaker work independently without any additional outer condition; also, smooth frequency curve and box effect of big volume sound box can be obtained, which makes the shortcomings of conventional sealed sound box and small volume sound box, such as high Q value, dry sound and unsmooth frequency curve.
  • the surroundless piston-driven vibrating speaker according to the present invention provides, in the field with the limited technical developing space, significant improvement both in structure and function. It makes sufficient technical improvement and is feasible and easy to use, thus it has indeed improved function that makes it practical to use. It is a novel and improved practical design.
  • the surroundless piston-driven vibrating speaker and its implementation, structure, attributes and functions, is the illustrated in detail as follows.
  • a surroundless piston-driven vibrating speaker of the present invention including: a shell and a vibrating voice generating part.
  • the vibrating voice generating part mainly comprises an improved vibrating system, a supporting system and an external magnet system.
  • the shell frame 1 is made of metal like copper or aluminum, or plastic, with air vents 10 at the side.
  • the number of the forementioned air vents 10 should be between 1 and 10. It is 6 in this embodiment.
  • External magnet system is composed of a ferrite core 2, an upper plate 3 and a T-yoke 7.
  • the forementioned ferrite core 2 is evenly installed between the upper plate3 and the T-yoke 7.
  • the forementioned T-yoke 7 is installed in the loop part of the voice coil 4.
  • Voice cone' which is in the shape of "7" is attached in a way that its inner side of the outer edge is connected with the outer side of the floating locating damper 6, and its outer side of the inner edge is connected with the upper side of the frame of the voice coil 4.
  • the inner side of the floating locating damper 6 is attached to the outer side of the upper end of the shell framel; the frame of the voice coil4 is around the central pole of the T-yoke.
  • the lower locating ring of damper 9 and the upper locating ring of damper 11 are made of metal like copper or aluminum, or plastic.
  • the forementioned locating ring 9 and 11 has the same inner diameter, and their outer diameter is same as that of damper.
  • the lower locating ring 9 is attached above the ferrite core 2; the damper 5 is attached above the lower locating ring9; the upper locating ring 11 is attached above the damper 5.
  • the upper' lower locating ring are installed clipping the outer edge of the central damper 5 at both the upper and the lower end.
  • the damper 5 is a rippled laminate in circle shape which is made of foam, rubber, cotton adhesive plaster' silk adhesive plaster, or compound adhesive plaster with carbon fibre or fiberglass.
  • the sound absorption cotton material 8 is made of plastic foam or foamed resin. It is used to fill in the space between the voice cone 12, the shell 1, the ferrite core 2 and the locating ring.
  • the forementioned dust preventing cover is normal dust preventing cover for speaker. It is installed on the voice cone 12, covering the voice coil 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP04003091A 2003-02-17 2004-02-12 Randringloser Kolbenlautsprecher Withdrawn EP1458215A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN03223604 2003-02-17
CNU032236042U CN2607708Y (zh) 2003-02-17 2003-02-17 无悬边活塞式振动扬声器

Publications (2)

Publication Number Publication Date
EP1458215A2 true EP1458215A2 (de) 2004-09-15
EP1458215A3 EP1458215A3 (de) 2008-03-12

Family

ID=32077284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003091A Withdrawn EP1458215A3 (de) 2003-02-17 2004-02-12 Randringloser Kolbenlautsprecher

Country Status (2)

Country Link
EP (1) EP1458215A3 (de)
CN (1) CN2607708Y (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113747285A (zh) * 2021-09-01 2021-12-03 无锡杰夫电声股份有限公司 一种具有多磁体的中高频音箱

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084945A (en) * 1935-11-08 1937-06-22 Lionel B Cornwell Loudspeaker
US2238741A (en) * 1938-02-22 1941-04-15 Gen Electric Electrodynamic transducer
US4829582A (en) * 1986-02-04 1989-05-09 U.S. Philips Corp. Electrodynamic transducer
US6219432B1 (en) * 1996-07-09 2001-04-17 B&W Loudspeakers Limited Loudspeaker drive unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084945A (en) * 1935-11-08 1937-06-22 Lionel B Cornwell Loudspeaker
US2238741A (en) * 1938-02-22 1941-04-15 Gen Electric Electrodynamic transducer
US4829582A (en) * 1986-02-04 1989-05-09 U.S. Philips Corp. Electrodynamic transducer
US6219432B1 (en) * 1996-07-09 2001-04-17 B&W Loudspeakers Limited Loudspeaker drive unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113747285A (zh) * 2021-09-01 2021-12-03 无锡杰夫电声股份有限公司 一种具有多磁体的中高频音箱
CN113747285B (zh) * 2021-09-01 2022-07-26 无锡杰夫电声股份有限公司 一种具有多磁体的中高频音箱

Also Published As

Publication number Publication date
EP1458215A3 (de) 2008-03-12
CN2607708Y (zh) 2004-03-24

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