ES2376731A1 - Speaker of diaphragm folded. (Machine-translation by Google Translate, not legally binding) - Google Patents
Speaker of diaphragm folded. (Machine-translation by Google Translate, not legally binding) Download PDFInfo
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- ES2376731A1 ES2376731A1 ES201030871A ES201030871A ES2376731A1 ES 2376731 A1 ES2376731 A1 ES 2376731A1 ES 201030871 A ES201030871 A ES 201030871A ES 201030871 A ES201030871 A ES 201030871A ES 2376731 A1 ES2376731 A1 ES 2376731A1
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- folded
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- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 6
- 230000001174 ascending effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007425 progressive decline Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B27/00—Planetaria; Globes
- G09B27/02—Tellurions; Orreries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Altavoz de diafragma plegado. Folded Diaphragm Speaker
CAMPO TÉCNICO. TECHNICAL FIELD.
El objeto de la presente invención, tal como se expresa en el enunciado de esta memoria descriptiva, hace referencia a un altavoz de diafragma plegado, empleado en la confección de equipos de audio. The object of the present invention, as expressed in the statement of this specification, refers to a folded diaphragm speaker, used in the preparation of audio equipment.
ANTECEDENTES DE LA INVENCIÓN. BACKGROUND OF THE INVENTION
Tradicionalmente, un altavoz está constituido básicamente por un diafragma cónico de cartulina o similar, adosado a una bobina cilÃndrica móvil vibrátil, colocada en el seno de unas piezas polares magnéticas fijas, también de configuración cilÃndrica. Traditionally, a loudspeaker is basically constituted by a conical cardboard diaphragm or the like, attached to a vibrating mobile cylindrical coil, placed inside a fixed magnetic pole pieces, also of cylindrical configuration.
Esta configuración tradicional presenta el inconveniente de que, cuando se plica gran potencia al altavoz, el calor generado por la bobina puede llegar a ser importante y hay que disiparlo; sin embargo, no siempre es posible disipar bien este calor (a pesar de que la bobina mientras vibra presenta un movimiento apreciable que hace que el aire circule a su alrededor y la refrigere), produciéndose entonces averÃas. This traditional configuration has the disadvantage that, when high power is applied to the speaker, the heat generated by the coil can become important and must be dissipated; however, it is not always possible to dissipate this heat well (although the coil while vibrating shows an appreciable movement that causes the air to circulate around it and cool it), then producing breakdowns.
Existen diversos métodos alternativos para evitar esta concentración de calor. There are several alternative methods to avoid this heat concentration.
Uno de estos métodos consiste en repartir el conductor eléctrico de la bobina por toda la superficie de un diafragma plano, ondulado o plegado, colocando dicho diafragma entre conjuntos de piezas polares también planas y/o longitudinales, de tal modo que cuando se aplica una señal alterna a las bobinas, estas se ven sometidas a esfuerzos alternativos de atracción y repulsión por parte de las piezas polares, provocando vibración sonora. One of these methods consists in distributing the electric conductor of the coil over the entire surface of a flat, wavy or folded diaphragm, placing said diaphragm between sets of polar pieces also flat and / or longitudinal, in such a way that when an alternating signal is applied to the coils, they are subjected to alternative efforts of attraction and repulsion by the polar pieces, causing sound vibration.
La finalidad de repartir el conductor eléctrico de la bobina por toda la superficie del diafragma, es intentar que no se produzcan en general grandes concentraciones puntuales de calor en ninguna zona especÃfica de dicho diafragma. The purpose of distributing the electric conductor of the coil over the entire surface of the diaphragm is to try not to produce large point heat concentrations in general in any specific area of said diaphragm.
Una solución de este tipo se describe en el expediente US 6111970, consistente en un transductor electroacústico constituido por un diafragma plano plegado móvil vibrátil, sobre el que se haya impresa una pista conductora eléctrica (de sección constante y uniforme en todo su recorrido) en forma de “zig-zag” vertical, que hace de bobina, estando dicho diafragma plegado con ondulaciones verticales de planta rectangular, y colocado en un entorno de diversas piezas polares magnéticas longitudinales fijas, paralelas al diafragma. A solution of this type is described in file US 6111970, consisting of an electroacoustic transducer constituted by a flat folded vibrating diaphragm, on which an electric conductive track (of constant and uniform section in its entire section is printed). route) in the form of a vertical “zig-zag”, which acts as a coil, said diaphragm being folded with vertical undulations of rectangular plan, and placed in an environment of various fixed longitudinal magnetic polar pieces, parallel to the diaphragm.
Sin embargo, teniendo en cuenta que el diafragma apenas se mueve durante las vibraciones (y por lo tanto no produce circulación de aire que pueda refrigerar la bobina), este dispositivo presenta el inconveniente de que, a altas potencias, la pista conductora impresa disipa mucha energÃa y los pliegues de dicho diafragma se pueden recalentar en exceso, deformándose por pandeo y provocando entonces distorsión acústica, pudiendo incluso llegar a quemarse; además, el sistema de suspensión descrito en dicho expediente es relativamente complejo. However, taking into account that the diaphragm hardly moves during vibrations (and therefore does not produce air circulation that can cool the coil), this device has the disadvantage that, at high powers, the printed conductive track dissipates a lot energy and the folds of said diaphragm can overheat, deforming by buckling and then causing acoustic distortion, and may even burn; in addition, the suspension system described in said file is relatively complex.
DESCRIPCIÓN DE LA INVENCIÓN. DESCRIPTION OF THE INVENTION
Con el fin de superar estos inconvenientes, se ha diseñado el novedoso altavoz de diafragma plegado, objeto de la presente memoria técnica. In order to overcome these inconveniences, the novel folded diaphragm loudspeaker, object of the present technical memory, has been designed.
En términos generales, la presente invención se refiere a un nuevo tipo de altavoz diseñado de tal modo que durante su funcionamiento, incluso a altas potencias, el diafragma no llega nunca a alcanzar un calentamiento excesivo en ninguna zona del mismo, ni a deformarse por pandeo; asà pues, tampoco existe riesgo de que se deteriore por exceso de temperatura, o de que se queme; además, en general, toda su configuración y, especialmente, su sistema de suspensión, es más sencillo que en otros altavoces del mismo tipo. In general terms, the present invention relates to a new type of loudspeaker designed in such a way that during its operation, even at high powers, the diaphragm never reaches excessive heating in any area thereof, nor to warp by buckling; thus, there is also no risk of deterioration due to excess temperature, or of burning; in addition, in general, all its configuration and, especially, its suspension system, is simpler than in other loudspeakers of the same type.
Para ello, se combinan tres efectos: una pista conductora de sección variable que genera expresamente algo más de calor en los pliegues centrales (dónde es más fácil disiparlo) que en los laterales, un sistema de suspensión que suministra mayor tracción en los pliegues centrales (que al calentarse más, tendrán mayor tendencia a la dilatación y al pandeo) que en los laterales, y un sistema de ventilación forzada en que el aire refrigerador incide especialmente en los pliegues de la zona central, en dónde, como ya se ha descrito, se genera expresamente algo más de calor. For this, three effects are combined: a conductive track of variable section that expressly generates some more heat in the central folds (where it is easier to dissipate it) than on the sides, a suspension system that supplies more traction in the central folds (which when heated more, will have a greater tendency to dilation and buckling) than on the sides, and a forced ventilation system in which the cooling air especially affects the folds of the central area , where, as already described, some more heat is expressly generated.
El nuevo altavoz está constituido en esencia por una caja acústica dotada de un transductor electroacústico constituido por un diafragma plano plegado móvil vibrátil, sobre el que se haya fijada una pista conductora eléctrica (impresa, embebida o adherida en forma en “zig-zag” vertical), que hace de bobina, siendo el diafragma plegado con ondulaciones verticales y estando dicho diafragma montado entre dos placas de piezas polares magnéticas longitudinales fijas, paralelas al diafragma, una frontal y otra posterior, estando la zona trasera de la placa posterior, recubierta de una lámina de aislante acústico (a base de fieltro o similar) para atenuar el sonido que se pierde por la zona posterior de la caja acústica. The new loudspeaker is essentially constituted by an acoustic box equipped with an electroacoustic transducer consisting of a flat folded vibrating diaphragm, on which an electrically conductive track (printed, embedded or embedded in the form of “ vertical zig-zag ”, which acts as a coil, the diaphragm being folded with vertical undulations and said diaphragm being mounted between two plates of fixed longitudinal magnetic polar pieces, parallel to the diaphragm, one front and one rear, the rear area being of the back plate, covered with an acoustic insulating sheet (based on felt or the like) to attenuate the sound that is lost through the rear area of the acoustic box.
La pista conductora presenta una ligera disminución de la sección eléctrica en la zona central del diafragma con respecto a las zonas laterales, razón por la cuál la disipación de potencia, y por lo tanto el calentamiento, será ligeramente mayor en dicha zona central. The conductive track exhibits a slight decrease in the electrical section in the central area of the diaphragm with respect to the lateral zones, which is why the power dissipation, and therefore the heating, will be slightly greater in said central zone.
El sistema de suspensión del diafragma plegado está configurado de tal modo que es capaz de mantener una tensión vertical diferente en cada pliegue, mayor en los pliegues de la zona central del diafragma que en los laterales, de tal modo que en la zona central, en donde se prevé un calentamiento algo mayor, y por lo tanto mayor dilatación, la mayor tensión mantiene la configuración plana plegada del diafragma, es decir, que no se produce deformación por pandeo; esto se consigue mediante una presilla, horquilla o clip tractor, cuya configuración hace que los pliegues centrales (en los que se prevé una mayor dilatación por calentamiento) estén sometidos a una mayor tensión que los pliegues laterales. The folded diaphragm suspension system is configured in such a way that it is capable of maintaining a different vertical tension in each fold, greater in the folds of the central area of the diaphragm than in the lateral ones, such that in the central area, where a somewhat greater heating is anticipated, and therefore greater dilation, the greater tension maintains the flat configuration folded of the diaphragm, that is, no buckling deformation occurs; This is achieved by means of a clip, fork or tractor clip, the configuration of which makes the central folds (in which a greater expansion due to heating) are subject to a greater tension than the lateral folds.
La caja acústica dispone de un circuito de refrigeración de aire forzado, en que el aire incide directamente sobre la zona central de los pliegues del diafragma, donde se produce el mayor calentamiento, dividiéndose a partir de ese punto en dos flujos que se dirigen, en direcciones opuestas, uno ascendente y el otro descendente, por el interior de los pliegues del diafragma, refrigerando toda su superficie; de este modo, se evacua constantemente cualquier exceso de calor generado tanto en el centro como en la periferia del diafragma. The acoustic box has a forced air cooling circuit, in which the air falls directly on the central area of the diaphragm folds, where the greatest heating occurs, dividing from that point into two flows that are directed , in opposite directions, one ascending and the other descending, inside the folds of the diaphragm, cooling its entire surface; in this way, any excess heat generated in both the center and the periphery of the diaphragm is constantly evacuated.
DESCRIPCIÓN DE LOS DIBUJOS. DESCRIPTION OF THE DRAWINGS.
Con el objeto de ilustrar cuanto hasta ahora hemos expuesto, se acompaña a la presente memoria descriptiva y formando parte integrante de la misma, de un conjunto de dibujos en los que se ha representado de manera simplificada y esquemática, un ejemplo de realización práctica únicamente explicativo aunque no limitativo, de las caracterÃsticas de la novedosa invención. In order to illustrate how much we have exposed so far, the present descriptive report and accompanying an integral part of it are accompanied by a set of drawings in which a simplified and schematic representation has been represented. Only explanatory but not limiting practice of the characteristics of the novel invention.
La figura 1 muestra una vista frontal del diafragma (sin plegar) en el que se observan las pistas del circuito impreso. Figure 1 shows a front view of the diaphragm (without folding) in which the tracks of the printed circuit are observed.
La figura 2 muestra un detalle del lateral del diafragma (sin plegar), en donde se observa el progresivo decrecimiento de la anchura de la pista de circuito impreso, a medida que dicha pista se aleja de la zona lateral del diafragma y se acerca a la zona central del mismo. Figure 2 shows a detail of the side of the diaphragm (without folding), where the progressive decrease in the width of the printed circuit track is observed, as said track moves away from the lateral area of the diaphragm and approaches the central area of it.
La figura 3 muestra una vista frontal del diafragma plegado, montado sobre un chasis propio que forma parte de la caja acústica, en donde se observan los pliegues verticales y la horquilla, sin la placa frontal de piezas polares. Figure 3 shows a front view of the folded diaphragm, mounted on an own chassis that is part of the acoustic box, where the vertical folds and the fork are observed, without the polar parts front plate.
La figura 4 muestra una vista en planta de la configuración de los pliegues del diafragma. Figure 4 shows a plan view of the configuration of the diaphragm folds.
La figura 5 corresponde a una vista posterior del novedoso altavoz. Figure 5 corresponds to a rear view of the novel speaker.
La figura 6 corresponde a la sección A-A’ de la figura 5, en cuyo interior se observa el aire forzado circulando verticalmente entre los pliegues del diafragma. Figure 6 corresponds to section A-A 'of Figure 5, inside which the forced air is seen circulating vertically between the diaphragm folds.
DESCRIPCIÓN DE UN EJEMPLO PR�?CTICO. DESCRIPTION OF A PRACTICAL EXAMPLE.
En las figuras que acompañan a la presente memoria se describe, a modo de ejemplo, un caso práctico de realización del dispositivo objeto de la misma. The figures accompanying this report describe, by way of example, a practical case of realization of the device object thereof.
El novedoso altavoz de diafragma plegado está constituido por una caja acústica (1) dotada de un transductor electroacústico conformado por un diafragma plano plegado (2) móvil vibrátil, sobre el que se haya fijada una pista conductora eléctrica (3) impresa en forma en “zig-zag” vertical, siendo el diafragma (2) plegado con pliegues (4) verticales, y estando dicho diafragma The novel folded diaphragm loudspeaker is constituted by an acoustic box (1) equipped with an electroacoustic transducer formed by a folded flat vibrating diaphragm (2), on which an electric conductive track (3) has been fixed. printed in a vertical “zigzag” shape, the diaphragm (2) being folded with vertical folds (4), and said diaphragm being
(2) montado entre dos placas (5 y 6) de piezas polares magnéticas longitudinales fijas, paralelas al diafragma (2), una frontal (5) y otra posterior (6), estando la zona trasera de la placa posterior (6), recubierta de una lámina de aislante acústico (7) a base de fieltro. (2) mounted between two plates (5 and 6) of fixed longitudinal magnetic polar pieces, parallel to the diaphragm (2), one front (5) and one rear (6), the rear area of the back plate (6) being ), covered with an acoustic insulating sheet (7) based on felt.
La pista conductora (3) está configurada de tal modo que presenta The conductive track (3) is configured in such a way that it presents
menor sección eléctrica en la zona central del diafragma que en las zonas smaller electrical section in the central area of the diaphragm than in the zones
laterales. lateral.
El sistema de suspensión está configurado de tal modo que la tensión The suspension system is configured in such a way that the tension
5 del diafragma se mantiene mediante una horquilla (8) tractora, la cuál suministra mayor tracción vertical en los pliegues centrales que en los laterales, para compensar la mayor dilatación de dichos pliegues centrales debido al mayor calentamiento, estando colocada la horquilla en la zona inferior del diafragma (2). 5 of the diaphragm is maintained by a tractor fork (8), which provides greater vertical traction in the central folds than in the lateral ones, to compensate for the greater expansion of said central folds due to the greater heating, the fork being placed in the lower area of the diaphragm (2).
10 El altavoz dispone de un circuito de refrigeración por aire (9), forzado mediante ventilador (10), de tal modo que el aire (9) incide primero sobre la zona central (más caliente) del diafragma (2) y circula posteriormente, ascendente y descendentemente, por el interior de los pliegues (4) del mismo. Serán independientes del objeto de la presente invención los materiales 10 The loudspeaker has an air cooling circuit (9), forced by fan (10), so that the air (9) first strikes the central (hotter) area of the diaphragm (2) and circulates subsequently, ascending and descending, inside the folds (4) thereof. Materials will be independent of the object of the present invention.
15 que se empleen en la fabricación de los distintos elementos que la componen, asà como las formas, dimensiones y accesorios que pueda presentar, pudiendo ser reemplazados por otros técnicamente equivalentes, siempre que no afecten a la esencialidad de la misma ni se aparten del ámbito definido en el apartado de reivindicaciones. 15 that are used in the manufacture of the different elements that compose it, as well as the shapes, dimensions and accessories that it may present, being able to be replaced by other technically equivalent ones, provided that they do not affect the essentiality of the same or depart of the scope defined in the claims section.
20 Establecido el concepto expresado, se redacta a continuación la nota de reivindicaciones, sintetizando asà las novedades que se desean reivindicar: 20 Once the concept expressed has been established, the claims note will be drafted below, thus summarizing the novelties to be claimed:
Claims (2)
- CategorÃa Category
- 56 Documentos citados Reivindicaciones afectadas 56 Documents cited Claims Affected
- Y Y
- US 6111970 A (CERWIN-VEGA, INC.) 29.08.2000, 1 US 6111970 A (CERWIN-VEGA, INC.) 29.08.2000, one
- figuras 1,4,7; columna 2, lÃnea 63 – columna 4, lÃnea 55. figures 1,4,7; column 2, line 63 - column 4, line 55.
- Y Y
- US 2007258612 A1 (JEAN-PIERRE MAMIN) 08.11.2007, 1 US 2007258612 A1 (JEAN-PIERRE MAMIN) 08.11.2007, one
- figuras 3,4,5; párrafos 0015-0021. figures 3,4,5; paragraphs 0015-0021.
- A TO
- GB 986390 A (GENEVIEVE BRISIGOTTI) 17.03.1965, 1 GB 986390 A (GENEVIEVE BRISIGOTTI) 17.03.1965, one
- figuras 2-4; página 1 – página 4, lÃnea 87. Figures 2-4; page 1 - page 4, line 87.
- A TO
- US 3832499 A (OSKAR HEIL) 27.08.1974, 1 US 3832499 A (OSKAR HEIL) 27.08.1974, one
- figuras 1a,1b; columna 2, lÃnea 43 – columna 5, lÃnea 26. Figures 1a, 1b; column 2, line 43 - column 5, line 26.
- A TO
- US 5325439 A (JACK R. SMILEY) 28.06.1994, 1 US 5325439 A (JACK R. SMILEY) 28.06.1994, one
- figuras 3,8; columna 3, lÃnea 55 – columna 6, lÃnea 32. figures 3.8; column 3, line 55 - column 6, line 32.
- A TO
- US 5864465 A1 (MICHAEL LIU) 26.01.1999, 1 US 5864465 A1 (MICHAEL LIU) 26.01.1999, one
- figuras 2,4; columna 2, lÃnea 22 – columna 4, lÃnea 5. figures 2,4; column 2, line 22 - column 4, line 5.
- A TO
- US 6723913 B1 (ANTHONY T. BARBETTA) 20.04.2004, 1 US 6723913 B1 (ANTHONY T. BARBETTA) 04.20.2004, one
- figuras 2,3; columna 2, lÃnea 22 – columna 4, lÃnea 25. figures 2,3; column 2, line 22 - column 4, line 25.
- CategorÃa de los documentos citados X: de particular relevancia Y: de particular relevancia combinado con otro/s de la misma categorÃa A: refleja el estado de la técnica O: referido a divulgación no escrita P: publicado entre la fecha de prioridad y la de presentación de la solicitud E: documento anterior, pero publicado después de la fecha de presentación de la solicitud Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the technique O: referred to unwritten disclosure P: published between the priority date and the submission of the application E: previous document, but published after the date of submission of the application
- El presente informe ha sido realizado • para todas las reivindicaciones • para las reivindicaciones nº: This report has been prepared • for all claims • for claims no:
- Fecha de realización del informe 01.03.2012 Date of realization of the report 01.03.2012
- Examinador G. Foncillas Garrido Página 1/4 Examiner G. Foncillas Garrido Page 1/4
- Novedad (Art. 6.1 LP 11/1986) Novelty (Art. 6.1 LP 11/1986)
- Reivindicaciones Reivindicaciones 1 SI NO Claims Claims one IF NOT
- Actividad inventiva (Art. 8.1 LP11/1986) Inventive activity (Art. 8.1 LP11 / 1986)
- Reivindicaciones Reivindicaciones 1 SI NO Claims Claims one IF NOT
- Documento Document
- Número Publicación o Identificación Fecha Publicación Publication or Identification Number Publication Date
- D01 D01
- US 6111970 A (CERWIN-VEGA, INC.) 29.08.2000 US 6111970 A (CERWIN-VEGA, INC.) 29.08.2000
- D02 D02
- US 2007258612 A1 (JEAN-PIERRE MAMIN) 08.11.2007 US 2007258612 A1 (JEAN-PIERRE MAMIN) 08.11.2007
- D03 D03
- US 5864465 A1 (MICHAEL LIU) 26.01.1999 US 5864465 A1 (MICHAEL LIU) 26.01.1999
- D04 D04
- US 6723913 B1 (ANTHONY T. BARBETTA) 20.04.2004 US 6723913 B1 (ANTHONY T. BARBETTA) 04.20.2004
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201030871A ES2376731B1 (en) | 2010-06-07 | 2010-06-07 | FOLDED DIAPHRAGM SPEAKER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201030871A ES2376731B1 (en) | 2010-06-07 | 2010-06-07 | FOLDED DIAPHRAGM SPEAKER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2376731A1 true ES2376731A1 (en) | 2012-03-16 |
| ES2376731B1 ES2376731B1 (en) | 2013-02-01 |
Family
ID=45786972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201030871A Active ES2376731B1 (en) | 2010-06-07 | 2010-06-07 | FOLDED DIAPHRAGM SPEAKER. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2376731B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2508185A (en) * | 2012-11-22 | 2014-05-28 | Acustica Beyma S L | Longitudinal tensioning of a corrugated or pleated planar diaphragm |
| ITRM20120603A1 (en) * | 2012-11-29 | 2014-05-30 | Acustica Beyma S L | SPEAKER WITH BENDED DIAPHRAGM |
| DE102012023822A1 (en) | 2012-12-05 | 2014-06-05 | Acustica Beyma, S.L. | Loudspeaker used for manufacture of audio device, has arc-shaped steel strip or curved steel plate that is supported by rigid support so as to stretch folded diaphragm along folding direction |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024039265A1 (en) * | 2022-08-18 | 2024-02-22 | Ильдар Васимович САФИУЛЛИН | Electrodynamic transducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB986390A (en) * | 1960-06-23 | 1965-03-17 | Georges Robert Poutot | An electro-acoustic transducer |
| US3832499A (en) * | 1973-01-08 | 1974-08-27 | O Heil | Electro-acoustic transducer |
| US5325439A (en) * | 1993-10-13 | 1994-06-28 | Smiley Jack R | Loudspeaker apparatus |
| US5864465A (en) * | 1997-11-04 | 1999-01-26 | Liu; Michael | Device for cooling central processing units |
| US6111970A (en) * | 1996-11-08 | 2000-08-29 | Cerwin-Vega, Inc. | Suspension for high power pleated ribbon transducer |
| US6723913B1 (en) * | 2001-08-23 | 2004-04-20 | Anthony T. Barbetta | Fan cooling of active speakers |
| US20070258612A1 (en) * | 2006-05-05 | 2007-11-08 | Jean-Pierre Mamin | Cooling system for loudspeaker transducers |
-
2010
- 2010-06-07 ES ES201030871A patent/ES2376731B1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB986390A (en) * | 1960-06-23 | 1965-03-17 | Georges Robert Poutot | An electro-acoustic transducer |
| US3832499A (en) * | 1973-01-08 | 1974-08-27 | O Heil | Electro-acoustic transducer |
| US5325439A (en) * | 1993-10-13 | 1994-06-28 | Smiley Jack R | Loudspeaker apparatus |
| US6111970A (en) * | 1996-11-08 | 2000-08-29 | Cerwin-Vega, Inc. | Suspension for high power pleated ribbon transducer |
| US5864465A (en) * | 1997-11-04 | 1999-01-26 | Liu; Michael | Device for cooling central processing units |
| US6723913B1 (en) * | 2001-08-23 | 2004-04-20 | Anthony T. Barbetta | Fan cooling of active speakers |
| US20070258612A1 (en) * | 2006-05-05 | 2007-11-08 | Jean-Pierre Mamin | Cooling system for loudspeaker transducers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2508185A (en) * | 2012-11-22 | 2014-05-28 | Acustica Beyma S L | Longitudinal tensioning of a corrugated or pleated planar diaphragm |
| ITRM20120603A1 (en) * | 2012-11-29 | 2014-05-30 | Acustica Beyma S L | SPEAKER WITH BENDED DIAPHRAGM |
| DE102012023822A1 (en) | 2012-12-05 | 2014-06-05 | Acustica Beyma, S.L. | Loudspeaker used for manufacture of audio device, has arc-shaped steel strip or curved steel plate that is supported by rigid support so as to stretch folded diaphragm along folding direction |
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| ES2376731B1 (en) | 2013-02-01 |
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