DE3213531A1 - Material for loudspeaker housings, sound guides and sound insulation - Google Patents
Material for loudspeaker housings, sound guides and sound insulationInfo
- Publication number
- DE3213531A1 DE3213531A1 DE19823213531 DE3213531A DE3213531A1 DE 3213531 A1 DE3213531 A1 DE 3213531A1 DE 19823213531 DE19823213531 DE 19823213531 DE 3213531 A DE3213531 A DE 3213531A DE 3213531 A1 DE3213531 A1 DE 3213531A1
- Authority
- DE
- Germany
- Prior art keywords
- layers
- sound
- cement
- meaning
- insulation
- 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
Links
Classifications
-
- 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
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/165—Particles in a matrix
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Multimedia (AREA)
- Inorganic Chemistry (AREA)
- Signal Processing (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
Description
Material für Lautsprechergehäuse' Schallführungen und SchalldämmungMaterial for loudspeaker enclosures' sound guides and sound insulation
Die Erfindung bezieht sich auf ein Material für Lautsprechergehäuse, Schallführungen und Schalldämmung. Bislang wurden zur Lautsprechergehäuseherstel lung (das sind offene und geschlossene Gehäuse) Alaterialien wie Spanplatte, Birkenholz, andere Naturhölzer, glasfaserverstürkte plastische Werkstoffe, Beton und Marmor verwendet. Die becken Ergebnisse in der Wiedergabetreue der Lautsprecherbox werden mit aufwendigen Holzkonstruktionen nach dem Sandwichprinzip, Beton- und Marmorgehäusen erzielt.The invention relates to a material for loudspeaker housings, Sound guides and sound insulation. So far, loudspeaker enclosure manufacturers have been ment (these are open and closed housings) Al materials such as chipboard, birch wood, other natural woods, glass fiber reinforced plastic materials, concrete and marble used. The basin results will be in the fidelity of the speaker box with elaborate wooden constructions based on the sandwich principle, concrete and marble housings achieved.
Der Q-Faktor eines Resonators ist das Maß für die bei Resonanz eintretende Überhöhung der Amplitude der angeregten Schwingung. Holzartige Konstruktionen weisen einen relativ hohen Q-Faktor auf, sind aber teuer, sehr schwer und lassen sich nicht gießen. Betongehäuse sind extrem schwer, und die anderen aufwendigen Konstruktionen, die einen niedrigen Q-Faktor erreichen wollen, sind in der Herstellung sehr teuer. Hier will die Erfindung Abhilfe schaffen.The Q-factor of a resonator is the measure of the resonance occurring Exaggeration of the amplitude of the excited oscillation. Wood-like constructions show have a relatively high Q-factor, but are expensive, very heavy and cannot be used to water. Concrete housings are extremely heavy, and the other complex constructions, those who want to achieve a low Q factor are very expensive to manufacture. The invention aims to provide a remedy here.
Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst folgende Aufgaben: 1. Eine wirksame Schalldämmung herbeizuführen, dh. Eigenschwingungen bzw.The invention as characterized in the claims solves the following tasks: 1. To bring about effective sound insulation, ie. Natural vibrations respectively.
Resonanzen des Gehäuses selbst sowie deren Ausklingzeiten zu reduzieren und damit Klangverfälschungen zu vermindern. To reduce the resonance of the housing itself and its decay times and thus to reduce sound distortions.
2. Die Herstellungskosten durch geringe Material- und Arbeitskosten niedrig zu halten.2. The manufacturing costs due to low material and labor costs to keep it low.
3. Das Gewicht der Gehäuse relativ zur Dätnmqudlität niedrig zu halten.3. To keep the weight of the housing low relative to the data quality.
4. Einen komplizierten Aufbau des Gehäuses (z.B. Exponentialbox) durch eine spezielle Gußtechnik zu ermöglichen. (Siehe Anspruch 2.1.).4. A complicated structure of the housing (e.g. exponential box) to enable a special casting technique. (See claim 2.1.).
Die durch die Erfindung erreichten Vorteile sind inl wesentlichen darin zu sehen, daß 1. Lautsprechergehäuse aus dem neuen Material einen geringen Q-Faktor und damit einen geringen Eigenklang haben.The advantages achieved by the invention are essentially essential it can be seen that 1. loudspeaker housing made of the new material has a low level Q-factor and thus have a low inherent sound.
2. Die Ausgangsstoffe des Materials sehr billig sind und der Arbeitsaufwand gering gehalten werden kann.2. The raw materials of the material are very cheap and the labor involved can be kept low.
3. Das Gewicht der Gehäuse unter dem von vergleichbaren Sandwich-, Beton-oder Marmorgehäusen liegt.3. The weight of the housing below that of comparable sandwich, Concrete or marble casing lies.
4. Das Gehause eine hohe innere Dämpfung aufweist als auch sehr verwindungssteif ist. Dies ist dadurch zu erklären, daß sich winzige dämpfende Zellulosezellen in einem starren Gerüst befinden.4. The housing has a high level of internal damping and is also very torsion-resistant is. This can be explained by the fact that tiny damping cellulose cells are in a rigid frame.
5. Durch die hohe Gußfähigkeit (d.h. es treten kaum innere Spannungen auf) wird das Gießen von kreiszylindrischen und kugelförmigen Gehäusen ermöglicht, die praktisch immun gegen Biegeschwingungen sind.5. Due to the high castability (i.e. there are hardly any internal tensions on) the casting of circular cylindrical and spherical housings is made possible, which are practically immune to flexural vibrations.
Im Folgenden wird die Erfindung anhand von lediglich einem Ausführungsweg erläutert: Ein Zellulosefaserbrei, wie cr zur Papierherswllung verwendet wird, wird mit Zement und Wasser gcnlischt und gut verrijilrt Ein mögliches Mischungsver h.iltnis ist Go Gew.% Wasser 35 Gew.% Zement 5 Gew.% Zellulose Das Material ist sofort gußfertig und bindet innerhalb weniger Tage ab. 3e nach Forderungen an Klangeigenschaften, Verwindungssteifheit und spez. Gewicht kann das Mischungsverhältnis innerhalb eines weiten Spektrums variiert werdenIn the following, the invention will be described on the basis of just one embodiment explained: A cellulose fiber pulp, as used for paper wrapping, is mixed with cement and water and set well. A possible mixing ratio is Go% by weight water 35% by weight cement 5% by weight cellulose The material is immediately ready for casting and sets within a few days. 3e according to requirements for sound properties, Torsional stiffness and spec. Weight can be the mixing ratio within one can be varied over a wide range
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823213531 DE3213531A1 (en) | 1982-04-10 | 1982-04-10 | Material for loudspeaker housings, sound guides and sound insulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823213531 DE3213531A1 (en) | 1982-04-10 | 1982-04-10 | Material for loudspeaker housings, sound guides and sound insulation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3213531A1 true DE3213531A1 (en) | 1983-10-20 |
Family
ID=6160791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823213531 Ceased DE3213531A1 (en) | 1982-04-10 | 1982-04-10 | Material for loudspeaker housings, sound guides and sound insulation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3213531A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027999A1 (en) * | 1995-03-06 | 1996-09-12 | Willibrordus Hermanus Korfage | Loudspeaker device |
DE10309028A1 (en) * | 2003-03-01 | 2004-09-16 | Peter Kittel | Compound material, for the acoustic structure and housing of loudspeakers, is a cold setting or foam cast resin with embedded foam spheres |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2656192B2 (en) * | 1976-09-29 | 1979-11-22 | Zuercher Ziegeleien, Zuerich (Schweiz) | Housing of an electroacoustic transducer and method for manufacturing the housing |
DE8004642U1 (en) * | 1980-02-21 | 1980-06-19 | Lewe, Lothar Reinhard, 7412 Eningen | VIBRATION-FREE SPEAKER HOUSING |
-
1982
- 1982-04-10 DE DE19823213531 patent/DE3213531A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2656192B2 (en) * | 1976-09-29 | 1979-11-22 | Zuercher Ziegeleien, Zuerich (Schweiz) | Housing of an electroacoustic transducer and method for manufacturing the housing |
DE8004642U1 (en) * | 1980-02-21 | 1980-06-19 | Lewe, Lothar Reinhard, 7412 Eningen | VIBRATION-FREE SPEAKER HOUSING |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027999A1 (en) * | 1995-03-06 | 1996-09-12 | Willibrordus Hermanus Korfage | Loudspeaker device |
NL9500440A (en) * | 1995-03-06 | 1996-10-01 | Willibrordus Hermanus Korfage | Loudspeaker device. |
DE10309028A1 (en) * | 2003-03-01 | 2004-09-16 | Peter Kittel | Compound material, for the acoustic structure and housing of loudspeakers, is a cold setting or foam cast resin with embedded foam spheres |
DE10309028B4 (en) * | 2003-03-01 | 2005-06-30 | Peter Kittel | Composite material for casings or sound ducts for acoustic devices and method for producing the casings or sound ducts |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: H04R 1/02 |
|
8131 | Rejection |