WO2018024647A1 - Procédé de fabrication d'une résistance acoustique et résistance acoustique - Google Patents

Procédé de fabrication d'une résistance acoustique et résistance acoustique Download PDF

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Publication number
WO2018024647A1
WO2018024647A1 PCT/EP2017/069257 EP2017069257W WO2018024647A1 WO 2018024647 A1 WO2018024647 A1 WO 2018024647A1 EP 2017069257 W EP2017069257 W EP 2017069257W WO 2018024647 A1 WO2018024647 A1 WO 2018024647A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
holes
base material
producing
acoustic
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.)
Ceased
Application number
PCT/EP2017/069257
Other languages
German (de)
English (en)
Inventor
Christian Politt
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 WO2018024647A1 publication Critical patent/WO2018024647A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/24—Perforating by needles or pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • B26F1/31—Perforating by non-mechanical means, e.g. by fluid jet by radiation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H04R1/086—Protective screens, e.g. all weather or wind screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B23K26/382—Removing material by boring or cutting by boring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers

Definitions

  • the present invention relates to a method for producing an acoustic resistance and an acoustic resistance.
  • DE 10 2014 214 547 A1 shows a method for producing acoustic resistors.
  • holes are punched in a base material for acoustic damping by means of a bushing with a hole and a punch with a corresponding punch diameter.
  • This object is achieved by a method for producing acoustic resistors according to claim 1 and by an acoustic resistor according to claim 5.
  • a method for producing an acoustic resistance is provided.
  • a plurality of first holes are formed in a base material having a first and a first hole second extent generated to produce a hole pattern.
  • a hole size and / or a hole spacing is configured unevenly distributed along the first and / or second extension.
  • the first holes may be punched, lasered, shot or shot, or etched by water jet cutting.
  • the invention relates to the idea of producing an acoustic resistance, for example by punching a base material, i. a hole pattern is punched in the base material.
  • a hole pattern is punched in the base material.
  • the acoustic damping of an acoustic resistance along the axes of the acoustic resistance can be varied.
  • an acoustic resistance can be provided which has a different attenuation value in different coordinates. The attenuation could increase continuously in one direction or it can be made linear.
  • Fig. 1 shows a schematic representation of a method for
  • FIGS. 2 to 10 each show different possible hole patterns for an inventive acoustic resistance.
  • Fig. 1 shows a schematic representation of a method for producing an acoustic resistance.
  • a base material 100 is used, and in this base material, a plurality of holes 10 are punched in a hole pattern.
  • the holes may be lasered, ion bombarded, waterjet cut or etched, for example.
  • the punching of the holes 10 takes place by means of a punch 200 having a first diameter and a bushing 300 having a bore 310 with a second diameter.
  • the bushing 310 is placed below the base material 100, and the punch 200 moves through the base material into the bushing 310, thereby punching a hole 10 in the base material 100.
  • This step is repeated at various positions until the desired hole pattern of the desired acoustic resistance is achieved.
  • either the tool (punch / sleeve) or the material can be repositioned.
  • the diameter of the hole 10 may depend on the diameter of the punch the diameter DB of the bushing 300 and the material thickness t as well as the material of the base material 100.
  • a hole pattern is punched into the base material 100 by the method described above, the holes preferably having a non-uniform arrangement over the base material 100.
  • an acoustic resistance can be achieved, which can have a changed attenuation over its surface.
  • the damping can be achieved by varying the diameter of the holes and / or the arrangement of the holes.
  • an acoustic resistance can thus be achieved which can have a damping gradient in a certain direction.
  • the damping can, for example, continuously increase or decrease.
  • the function of the increase over a coordinate of the base material is freely adjustable. It can, but does not have to increase or decrease linearly.
  • an increase of the resistance with a subsequent decrease along one or more coordinates is possible. This can be achieved, for example, by varying the size of the holes and the distance between the punched holes. With a variation of the distance, the tool used (punch, bush) must not be changed.
  • a variation of the attenuation not only along a linear coordinate direction, but can be done otherwise.
  • the damping in the radial direction may decrease or increase.
  • the change in the acoustic resistance can be continuous or stepped or jumped.
  • the holes may be configured as round holes, angular holes or the like.
  • FIGS. 2 to 4 each show a sheet-like base material 100 having first and second extensions 100a, 100b.
  • FIGS. 2 to 4 each show different uniform hole patterns.
  • 2 shows a triangular grid, in FIG. 3 a square grid and in FIG. 4 a hexagonal grid.
  • FIGS. 2 to 4 each show a uniform hole arrangement with holes of equal size.
  • FIGS. 5 to 10 each show a planar base material 100 with first and second extensions 100a, 100b (X and Y axes).
  • Fig. 5 shows a schematic representation of a hole pattern with a quasi-random arrangement of 1500 holes.
  • the hole pattern according to FIG. 5 can be produced by the method according to the invention.
  • Fig. 6 shows a schematic representation of a hole pattern according to the invention.
  • the hole pattern has a plurality of holes 10 in a base material 100.
  • the holes 10 are provided in a spiral arrangement.
  • the center of the spiral arrangement can be provided without holes.
  • the hole pattern of FIG. 6 represents an arrangement of holes with an equidistant arrangement on a Fibonacci spiral.
  • it is optionally possible to avoid interfering effects, such as standing wave resonance phenomena, which are present in a regular distribution can.
  • FIG. 7 shows an acoustic resistance with a base material 100 and a plurality of holes 11 -17.
  • the holes 11-17 each have a different diameter.
  • the acoustic resistance according to FIG. 7 thus has a continuous change of the acoustic attenuation by variation of the hole size in the second dimension 100 b of the base material 100.
  • Fig. 8 is a graph showing an acoustic resistance. On the left side there is shown a first portion 100c with a first hole spacing and on the right side a second portion 100d with a second hole spacing. The transition between the first and second sections 100d, 100c is erratic. The diameter of the holes 11 may be substantially identical.
  • FIG. 9 shows a schematic representation of a hole pattern of an acoustic resistor according to the invention.
  • FIG. 9 shows a hole pattern with a fixed grid, but with different hole sizes or diameters. The hole sizes change towards the center and in particular become smaller. Alternatively, the hole size may also decrease from the center to the outside.
  • Fig. 10 shows a schematic representation of a hole pattern of an acoustic resistor according to the invention.
  • a hole arrangement is shown in a spiral shape, wherein the diameter of the holes 1 1, 12, 13 are smaller from the center outwards.
  • a hole pattern may also be provided in a spiral shape, wherein the diameter of the holes 11, 12, 13 decreases from outside to inside.
  • the base material 100 has first and second extensions 100a, 100b and a center 100d.
  • FIGS. 9 and 10 show in particular a rotationally symmetrical distribution starting from a center point. The damping can increase or decrease radially.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une résistance acoustique. Une pluralité de premiers trous (10) est réalisée dans un matériau de base (100) d'une première et d'une deuxième direction (100a, 100b) afin de réaliser un modèle de perforations. Une grandeur de perforation et/ou une distance entre perforations est/sont conçue(s) de manière non uniforme dans la première et/ou la deuxième direction (100a, 100b).
PCT/EP2017/069257 2016-08-03 2017-07-30 Procédé de fabrication d'une résistance acoustique et résistance acoustique Ceased WO2018024647A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016114314.6A DE102016114314A1 (de) 2016-08-03 2016-08-03 Verfahren zum Herstellen eines akustischen Widerstandes und akustischer Widerstand
DE102016114314.6 2016-08-03

Publications (1)

Publication Number Publication Date
WO2018024647A1 true WO2018024647A1 (fr) 2018-02-08

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ID=59745870

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/069257 Ceased WO2018024647A1 (fr) 2016-08-03 2017-07-30 Procédé de fabrication d'une résistance acoustique et résistance acoustique

Country Status (2)

Country Link
DE (1) DE102016114314A1 (fr)
WO (1) WO2018024647A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB670868A (en) * 1950-05-11 1952-04-23 Machiel De Vries A filter for sound vibrations and a microphone and telephone provided therewith
AT378306B (de) * 1983-08-29 1985-07-25 Akg Akustische Kino Geraete Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler
EP0686963A2 (fr) * 1994-06-08 1995-12-13 USG INTERIORS, Inc. Dispositif pour la production d'un panneau fissuré de plafond acoustique et procédé pour fabriquer ledit dispositif
US6334280B1 (en) * 1996-02-08 2002-01-01 Bpb Plc Sound absorbing cementitious tile
US6609592B2 (en) * 2000-06-30 2003-08-26 Short Brothers Plc Noise attenuation panel
DE102014214547A1 (de) 2014-07-24 2016-01-28 Sennheiser Electronic Gmbh & Co. Kg Verfahren zum Herstellen von akustischen Widerständen
DE102015118464A1 (de) * 2014-10-30 2016-05-04 Sennheiser Electronic Gmbh & Co. Kg Planardynamischer Schallwandler
US20160215499A1 (en) * 2015-01-23 2016-07-28 United States Gypsum Company Wallboard punch assembly with stripper bushings

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415983C2 (de) * 1994-05-06 1998-02-19 Continental Ag Am Radkasten eines Kraftfahrzeuges anzubringende, als passiver Schallabsorber wirkende Vorrichtung
CA2279445A1 (fr) * 1998-08-07 2000-02-07 Anthony L. Wiker Panneaux de plafond renforces
EP1234922A1 (fr) * 2001-02-19 2002-08-28 Mäder AG Innenausbau Procédé et dispositif pour la fabrication d'un élément insonorisant plat
US8638971B2 (en) * 2011-09-30 2014-01-28 Apple Inc. Open-air earbuds and methods for making the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB670868A (en) * 1950-05-11 1952-04-23 Machiel De Vries A filter for sound vibrations and a microphone and telephone provided therewith
AT378306B (de) * 1983-08-29 1985-07-25 Akg Akustische Kino Geraete Verwendung eines gebuendelten laserstrahles zur herstellung eines akustischen reibungswiderstandesfuer elektroakustische wandler
EP0686963A2 (fr) * 1994-06-08 1995-12-13 USG INTERIORS, Inc. Dispositif pour la production d'un panneau fissuré de plafond acoustique et procédé pour fabriquer ledit dispositif
US6334280B1 (en) * 1996-02-08 2002-01-01 Bpb Plc Sound absorbing cementitious tile
US6609592B2 (en) * 2000-06-30 2003-08-26 Short Brothers Plc Noise attenuation panel
DE102014214547A1 (de) 2014-07-24 2016-01-28 Sennheiser Electronic Gmbh & Co. Kg Verfahren zum Herstellen von akustischen Widerständen
DE102015118464A1 (de) * 2014-10-30 2016-05-04 Sennheiser Electronic Gmbh & Co. Kg Planardynamischer Schallwandler
US20160215499A1 (en) * 2015-01-23 2016-07-28 United States Gypsum Company Wallboard punch assembly with stripper bushings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RIGIPS: "Planung und Ausführung. Akustikdecken", 31 December 2004 (2004-12-31), XP055418307, Retrieved from the Internet <URL:http://www.rigips.ch/download/Akustikdecken.pdf> [retrieved on 20171024] *

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