EP2367365A2 - Haut-parleur avec rétroaction alimenté à air comprimé - Google Patents

Haut-parleur avec rétroaction alimenté à air comprimé Download PDF

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Publication number
EP2367365A2
EP2367365A2 EP11386004A EP11386004A EP2367365A2 EP 2367365 A2 EP2367365 A2 EP 2367365A2 EP 11386004 A EP11386004 A EP 11386004A EP 11386004 A EP11386004 A EP 11386004A EP 2367365 A2 EP2367365 A2 EP 2367365A2
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
box
cone
bellows
shaped membrane
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Withdrawn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
EP11386004A
Other languages
German (de)
English (en)
Other versions
EP2367365A3 (fr
Inventor
Father Serafeim Manelidis Bladimiros
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 EP2367365A2 publication Critical patent/EP2367365A2/fr
Publication of EP2367365A3 publication Critical patent/EP2367365A3/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Withdrawn legal-status Critical Current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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers

Definitions

  • the invention refers to sound reproduction systems and comprises a speaker with air powered feedback mechanism.
  • the closed-type box (cabinet), box with open rear side, box with phase inverter, passive radiator etc.
  • the advantage of this invention is that the speaker's box size is small, it is able to reproduce low frequencies with high performance, does not synchronize and additional devices such as active filters, special amplifiers, computers, etc. are not required.
  • Air powered feedback is implemented to eliminate the drawbacks for this invention.
  • the dynamic loudspeaker is installed in the box and a flexible rubber adaptor (bellows) is installed at the center of the front side of the cone-shaped membrane.
  • a flexible rubber adaptor (bellows) is installed at the center of the front side of the cone-shaped membrane.
  • One side of the bellows is attached to the cone-shaped membrane of the loudspeaker and the other to the end of a section of the pipe.
  • Pipes are attached to the side holes of the pipe section, which end up at the holes on the front side of the speaker box.
  • the front side of the pipe section may be open or closed with a lid.
  • the bellows is made of the same material as the rubber support of the cone-shaped plastic membrane of the loudspeaker.
  • the entire air powered feedback arrangement is constructed in such a manner as to allow air movement from inside the closed speaker box to the bellows and vice versa through the pipes.
  • the bellows expand and compress respectively during this procedure.
  • Air powered feedback air allows a smaller box size up to the dimensions of the loudspeaker and creates a good width-frequency ratio.
  • Drawing 1 shows the side view of the speaker with air powered feedback.
  • Drawing 2a shows the front view of the speaker with air powered feedback
  • Drawing 2b shows the plan view section of the speaker with air powered feedback
  • a flexible rubber adaptor (bellows) (1) has been installed at the center of the front side of the loudspeaker's cone-shaped membrane (6).
  • One side of the bellows (1) is attached to the cone-shaped membrane of the loudspeaker (6) and the other to the end of a section of the pipe (2).
  • the front side of the pipe section (2) may be open or closed with a lid (4).
  • Pipes (3) are attached to the side holes of the pipe section (2) which end up at the holes on the front side of the speaker box (7).
  • the pipe system (2)(3) is at a fixed distance from the front side of the box (7) so that the loudspeaker's cone-shaped membrane movement can trigger compression or expansion of the bellows (1).
  • Movement of the loudspeaker's (5) cone-shaped membrane towards the front (6) causes thinning of the air inside the box (7) and the flexible rubber adaptor (bellows) (1) is therefore compressed, pushing the air that is inside the bellows outwards; part of this air enters the box (7) through the pipes (3) (2) and equalizes the air pressure inside the box, thus reducing the resistance to the cone-shaped membrane (6) and increasing the width of movement of the cone-shaped membrane (6). This increases the performance of the loudspeaker - woofer.
  • Movement of the loudspeaker's (5) cone-shaped membrane (6) towards the back causes increased air pressure in the box (7), i.e. air compression.
  • the bellows (1) expands and absorbs the air from the box (7) through the pipes (3)(2), and thus decreases air pressure in the box (7).
  • the reduction of the resistance of the movement of the cone-shaped membrane (6) and the increase in the width of movement of the cone-shaped membrane (6) improve the performance.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP11386004A 2010-03-15 2011-03-11 Haut-parleur avec rétroaction alimenté à air comprimé Withdrawn EP2367365A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20100100153A GR1007393B (el) 2010-03-15 2010-03-15 Ηχειο με αναδραση μεσω αερα

Publications (2)

Publication Number Publication Date
EP2367365A2 true EP2367365A2 (fr) 2011-09-21
EP2367365A3 EP2367365A3 (fr) 2012-05-16

Family

ID=44201873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11386004A Withdrawn EP2367365A3 (fr) 2010-03-15 2011-03-11 Haut-parleur avec rétroaction alimenté à air comprimé

Country Status (2)

Country Link
EP (1) EP2367365A3 (fr)
GR (1) GR1007393B (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01254096A (ja) * 1988-04-04 1989-10-11 Yamaha Corp 音響装置
FR2714788A1 (fr) * 1993-12-31 1995-07-07 Sono Light Diffusion Dispositif émetteur de bruits blancs.
US7499562B2 (en) * 2003-09-22 2009-03-03 Soon-Teak Shim Virtual multi-channel speaker unit
JP4229147B2 (ja) * 2006-06-30 2009-02-25 ヤマハ株式会社 スピーカ用エンクロージャおよびスピーカシステム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
EP2367365A3 (fr) 2012-05-16
GR1007393B (el) 2011-09-09

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