WO2021013307A1 - Haut-parleur électrodynamique - Google Patents

Haut-parleur électrodynamique Download PDF

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Publication number
WO2021013307A1
WO2021013307A1 PCT/DE2020/100647 DE2020100647W WO2021013307A1 WO 2021013307 A1 WO2021013307 A1 WO 2021013307A1 DE 2020100647 W DE2020100647 W DE 2020100647W WO 2021013307 A1 WO2021013307 A1 WO 2021013307A1
Authority
WO
WIPO (PCT)
Prior art keywords
loudspeaker
basket
shaped
electrodynamic
retaining ring
Prior art date
Application number
PCT/DE2020/100647
Other languages
German (de)
English (en)
Other versions
WO2021013307A4 (fr
Inventor
Karsten BUSS
Original Assignee
Buss Karsten
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 Buss Karsten filed Critical Buss Karsten
Publication of WO2021013307A1 publication Critical patent/WO2021013307A1/fr
Publication of WO2021013307A4 publication Critical patent/WO2021013307A4/fr

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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
    • H04R1/023—Screens for loudspeakers
    • 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
    • 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
    • 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
    • H04R9/06—Loudspeakers
    • 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 invention is based on an electrodynamic loudspeaker according to the preamble of claims 1, 7, 15 or 20.
  • Electrodynamic loudspeakers convert electrical signals into analog sound waves. They are known in a wide variety of designs, performances and various applications and are installed in a spatially small design in headphones, in a medium-sized design in vehicles, home hi-fi systems and in large loudspeakers with high-performance acoustic systems.
  • the basic principle of any loudspeaker is to convert the electrical signal received from an amplifier into sound waves.
  • an acoustic transducer in the form of a loudspeaker is not able to “convert the electrical image of the sound supplied to it into equivalent sound waves within the human audible spectrum” (DE 10 201 1 1 15 A1, Paragraph 0008).
  • a wave field generator consisting of interference resonators is proposed.
  • Such shaped elements can also be arranged in the form of electrical connection contacts on the connecting webs of the loudspeaker frame and / or on two successive connecting webs interconnecting intermediate bars (US 4,331,841 A, US 4 068 103 A, DE 203 17 355 U1).
  • the invention is based on the object of changing the loudspeakers in such a way that they also have a significantly higher quality in the reproduction and reproduction of the original sound of a sound event compared to high-quality loudspeakers, regardless of whether it is a single human voice, eg A choir, the sound of a solo instrument, an instrument group or an orchestra, so that they offer the listener a natural sound image or sound experience that comes much closer to the original sound.
  • a single human voice eg A choir, the sound of a solo instrument, an instrument group or an orchestra
  • the invention is applicable to electrodynamic loudspeakers of any kind, which have at least one individual loudspeaker, which consists of a loudspeaker basket, egg nem attached to this magnet with an axially movable voice coil in the magnet and one with one end with the voice coil and with its other The end of the membrane connected to the speaker frame consists.
  • At least one S-shaped element is arranged on at least one of the inner and outer rings of the loudspeaker basket of the at least one individual loudspeaker and / or on one of two successive connecting webs miteinan the connecting intermediate web, which consists of a good sound and / or material having resonance properties consists.
  • a shaped element is arranged in or on at least one basket opening, which at least partially rests against its contour and also consists of a material having good sound and / or resonance properties. This means that this at least one shaped element is both inserted into the basket opening and can also be arranged directly on its edge.
  • the S-shaped element is formed from two strung together arcs with a convex and a concave curvature.
  • the polygon shape is created by straight lines that are lined up in a plane and enclose an area, whereby both open and closed polygon shapes can be used here.
  • the so-called polygons more precisely, the edges forming their circumference, are to be understood here as closed polygon shapes, while open polygon shapes are formed by straight lines lined up in the plane to form an open arc.
  • the shaped element arranged in or on the Korböff voltage of the loudspeaker cage consists of an arch open to the large Hal tering of the loudspeaker cage, which can be designed as a round arch as well as straight arcs composed of polygons. It is crucial that the sheet rests at least partially on the contour of the basket opening.
  • the arch can, however, also be completely adapted to the shape of the basket openings, d. H. following the contour of the opening, nestle against it.
  • the shaped elements, including the S-shaped shaped element arranged on the connecting web can be fastened or screwed to the min least one loudspeaker frame by means of wire clips, clips, eyelets or loops.
  • wood is certainly one of the most suitable materials. But also other natural materials such. B. horn or shell appear suitable for this purpose. But it is also possible to use metal or a composite material instead of natural materials.
  • a lemniscate-shaped shaped element is placed around these magnets with electrodynamic loudspeakers whose magnets are at least partially in a plane. It is not necessary, but an advantage, that the two rings of the lemniscate are closed.
  • the invention also relates to such electrodynamic loudspeakers whose at least one individual loudspeaker has a spoke-like cover.
  • An S-shaped shaped element is attached to at least one of the spokes of the cover.
  • a shaped element at least partially adjacent to its inner contour is inserted or a shaped element following at least part of its inner contour is arranged on at least one spoke opening.
  • the same design options apply in terms of shape, arrangement and material as have already been described for the form elements inserted into the basket openings. They are also attached to the cover in the manner described above by means of wire clips, clips, eyelets or loops on the cover or by screwing on the same.
  • the inner ring is provided with at least one lemniscate-shaped element protruding from the opening of the inner ring at least in an extension Mistake.
  • the ring shapes for. B. circles, ellipses o. ⁇ .
  • the at least one lemniscate-shaped shaped element each arranged coaxially to the individual speakers and the diameter of the ring shape the diameter of each individual speaker above which they are arranged, adapted.
  • the electrodynamic loudspeaker has four individual loudspeakers, of which two individual loudspeakers are diametrically opposed in pairs
  • a lemniscate-shaped shaped element is arranged for each diametrically opposed pair of loudspeakers in the opening of the inner ring so that the lemniscate-shaped form elements intersect at their intersection and thus form a double lemniscate.
  • a further improvement in the sound quality of such electrodynamic loudspeakers is achieved in that in the area of the fastening of the at least one lemniscate-shaped shaped element on the inner ring of the cover of the single loudspeaker (s) between this and the outer jacket of the at least one lemniscate-shaped shaped element, one of the shape of the outer jacket of the lemniskatenförmi gene formulas, d. H. its convex shape and the shape of the inner ring of the cover in this area, d. H. whose concave shape adapted arc-shaped intermediate piece is arranged. While the lemniscate shaped element usually consists of a metallic wire, wood or a composite material is advantageously chosen as the material for the arcuate intermediate piece.
  • a plate made of a mineral material is arranged on the bottom of the housing of a speaker lying on its floor or on its rear wall, which causes an additional improvement in its sound.
  • the invention also relates to such electrodynamic loudspeakers whose at least one individual loudspeaker has two brackets protruding beyond the at least one loudspeaker basket as a cover.
  • the at least two brackets are connected to one another via at least one S-shaped shaped element, this S-shaped shaped element being different from that which is arranged on a connecting web of a loudspeaker basket or a spoke of a spoke-like cover, This differs from the fact that there is a longer straight piece between the two oppositely directed arcs.
  • the two brackets are each at least partially encompassed by the curved end of the at least one S-shaped element, one end in the direction of the loudspeaker and the other end away from it due to the opposite curvature of the bow shows.
  • any other arrangement and attachment of the at least one S-shaped element to the bracket is also possible.
  • At least one polygonal shape for example a five-pointed star, is arranged inside the housing, preferably on its side surfaces.
  • the five-star can be viewed as a special form of a polygon in terms of the treasure trove of shapes used in the chladnian sound figures.
  • a further improvement in the sound of the electrodynamic loudspeaker is achieved in that the inside corners of the housing are glued with triangular strips.
  • the shaped elements mentioned in claims 1 to 6 can also be arranged on the loudspeaker frame, namely on the at least one connecting web of the loudspeaker frame and / or on an intermediate web connecting two successive connecting webs to one another.
  • shaped Formele element arranged and inserted into at least one basket opening an at least partially adjacent to de Ren inner contour form element. This again significantly improves your sound quality.
  • the invention also relates to electrodynamic multi-way loudspeakers which have at least one lower bass loudspeaker, at least two middle loudspeakers arranged next to one another in one plane, and at least three upper small height loudspeakers arranged next to one another in a holder, each individual loudspeaker having the has known, in the previous Ausure tion mentioned components.
  • the multi-way loudspeaker is housed in a housing and provided with a cover which is arranged at a distance from the small height loudspeakers.
  • a metal wire shaped into a multiple lemniscate is on the holder of the upper, small height loudspeaker arranged, the ring-shaped elements are each arranged coaxially to the side by side of the ordered small height speakers.
  • the shape and dimensions of the elements of the multiple lemniscate correspond to the shape and dimensions of the respective small flea loudspeaker over which the element is arranged.
  • At least one S-shaped element is arranged on at least one connecting web of the loudspeaker basket and / or on an intermediate web connecting two successive connecting webs and in at least one basket opening his loudspeaker basket inserted a molded element at least partially resting against its inner contour.
  • a sound improvement is achieved for the two middle loudspeakers in that their magnets are surrounded by a metal wire shaped into a lemniscate.
  • An additional sound improvement of the multi-way loudspeaker is achieved in that a polygonal shape, for example a five-pointed star, is arranged on the inner side of the cover facing the upper, small height loudspeakers.
  • the aforementioned sound-enhancing forms must consist of a material that has good sound and / or resonance properties, of which wood is certainly one of the most suitable materials. But it is also possible to use metal or a composite material instead of wood.
  • the scope of protection of this invention extends not only to the sound-improving shapes and arrangements of these shapes that are only subsequently arranged on speakers that have already been manufactured, but also to those that are already integrated on or into the component during the manufacturing process.
  • Fig. 1 shows a first variant of a loudspeaker with two additional one
  • FIG. 2 shows the cover of the loudspeaker from FIG. 1 with shaped elements
  • FIG. 3 shows a second variant of a loudspeaker with four additional inputs
  • FIG. 4 shows the back of the cover of the loudspeaker from FIG. 3 with
  • FIGS. 1 and 3 shows the rear of the loudspeakers from FIGS. 1 and 3,
  • FIG. 6 shows a model of a bass loudspeaker with a bow-shaped Ab
  • cover, 7 shows the fastening of the S-shaped shaped elements to the brackets
  • Fig. 8 shows the woofer from Fig. 6 from the rear
  • FIG. 9 shows the arrangement of a five-star in the housing of the woofer from FIG. 6,
  • FIG. 10 shows a third variant of a loudspeaker as a multi-way loudspeaker with cover and housing
  • Fig. 1 the multi-way speaker without a cover with a view of the
  • Fig. 12 the multi-way loudspeaker from the rear
  • Fig. 13 is a view of the midrange speakers
  • Fig. 1 shows a first variant of a speaker 2 removed from its housing 1, which has a large single speaker 3 acting as a low-frequency speaker (see FIG. 5) and two smaller single speakers 4 and 5 arranged above this side by side, and a spoke-like one Has cover 6, the larger individual speaker 4 as a mid-range speaker and the smaller individual speaker 5 acts as a tweeter.
  • the large individual loudspeaker 3 has a loudspeaker cage 7 which consists of a small, inner retaining ring 8 and a large, outer retaining ring 10 connected to it via radially conically outwardly extending connecting webs 9.
  • the opening located between two adjacent connec tion webs 9 is referred to as the basket opening 1 1 (reference numbers 8 to 10 see FIG. 5).
  • a magnet 12 is attached to the inner retaining ring 8 and a membrane 13 and the two small individual speakers 4, 5 are attached to the outer retaining ring 10.
  • a special feature of this first variant is that the bottom of the housing 1 is provided with a stone plate 14.
  • the stone slab 14 causes a Sta bilization of the position of the housing 1 with the loudspeaker 2, whereby an improved sound radiation from the individual loudspeakers and thus an improved overall sound quality of the loudspeaker is achieved.
  • the sound quality of the speaker 2 improving means are provided on the spoke-like cover 6, which are already shown in Fig. 1, but due to the better clarity of the representation based on the individual representation of the spoke-like cover 6 in FIG. 2 should be explained in more detail.
  • the spei chen-like cover 6 consists of an oval inner ring 15 which surrounds the two small individual speakers 4, 5 and which is connected to an outer ring 17 via radially outwardly striving spokes 16.
  • the open space remaining between the spokes 16 is referred to as the spoke opening 18.
  • an S-shaped shaped element 19 is arranged in each case and, in the present example, is connected to the spokes 16 of the cover 6 by means of a wire loop 20.
  • two of the inner contour of the spoke opening 18 fol lowing, arcuate shaped elements are arranged and in the present example also connected to the inner ring 15 of the cover 6 by means of a wire loop 20, with a first, inner arcuate shaped element 21 clings to the inner ring 15 and the spokes 16 which strive radially outward from this, in the present example tapers towards the outer ring 17 and is made of wood.
  • a second, outer arcuate shaped element 22, viewed in the radial direction, hugs the inner arcuate shaped element 21 from the outside and in the present example consists of a metal wire.
  • the area enclosed by the oval inner ring 15, which, as described above ben, in the assembled state above the two small individual speakers 4, 5 is located (Fig. 1), is closed with a lemniscate 23, which in the present example consists of a ge , intersecting metal wire is provided.
  • the two circles created by the crossing of the metal wire have a different diameter, each of which is adapted to the diameter of that small individual speaker 4, 5 over which it is located in the assembled state (FIG. 1).
  • the Lemnis cate 23 is in the present example also in the areas in which one or both arcuate shaped elements 21, 22 on the inner ring 15 opposite the arcuate piece of the Lem niskate 23, attached together with these by means of wire loops 20 on the inner ring 15.
  • the lemniscate 23 has an additional feature that improves the sound of the two individual speakers 4, 5 in the two diametrically opposite areas of its attachment, i.e. in the area in which it is located closest to the inner ring 15 .
  • an arcuate intermediate piece 24 adapted to the convex shape of its outer jacket and the concave shape of the inner ring 15 is arranged and fastened together with the lemniscate 23 to the inner ring 15, in the present example by means of wire loops 20 .
  • This arcuate, as it were clinging to the inner ring 15 and the lemniscate 23 intermediate piece 24 thus provides the physical contact between the cover 6 and the mainly sound-improving shaped element, the lemniscate 23, from.
  • a second variant of a loudspeaker 25 is shown in FIG. 3. Like the loudspeaker 2 of variant I, it has a large single-cell loudspeaker 3 serving as a bass loudspeaker (see also FIG. 5), which is arranged in a housing 1, on the bottom of which there is also a stone slab 14 when it is arranged horizontally.
  • the second variant differs from the first variant in that, in addition to the two small individual loudspeakers 4, 5, two further small individual loudspeakers 26, 27, which serve as tweeters, are arranged opposite one another above the large individual loudspeaker 3.
  • the loudspeaker 3 is covered by a spoke-like cover 28, which has a similar structure to the spoke-like cover 6 of the loudspeaker 2 of variant I.
  • Your inner ring 29 includes all four small individual speakers 4, 5, 26, 27 and therefore has a different circumferential shape than the oval inner ring 15 of variant I. All other components of the loudspeaker 25 which are the same as the components of the loudspeaker 2 of variant I have been given the same reference numbers and are not explicitly mentioned again.
  • Fig. 4 which shows the back of the cover 28, the Spei were 16 on the back of the cover 28 each provided with an S-shaped Formele elements 19, but not fastened by means of loops, but screwed on, including the Spokes 16 are provided with threaded bores 30 (Fig. 3).
  • the inner ones known from variant I. and outer arcuate shaped elements 21, 22 made of wood and metal can be seen, which, however, are not in the spoke opening 18, but on the back of the cover 28, following the contour of the spoke opening 18 and the spokes 16, are angeord net.
  • the opposing small individual loudspeakers 26, 27 are also provided with a lemniscate 23 in the cover 28.
  • the intersection points of the two lemniscates 23 lie at one point, so that both lemniscates 23 form a double lemniscate 31.
  • FIG. 5 shows the back of the large single loudspeaker 3, which is used in both variants I and II, so that the shaped elements arranged on its loudspeaker frame 7 are described only once, since they are arranged and act in the same way in both variants.
  • the basket opening 1 1 is provided with a ring to the outer retaining ring 10 open arc 32 made of wood, which in the present example fully rests against the concave arcuate portion of the inner retaining ring 8 and the connecting webs 9 continuing this Bo counterpart.
  • the open arch 32 differs from the inner arch-shaped shaped element 21 arranged on the spoke-like covers 6, 28 in that it has a constant width, viewed in the radial direction. It is also attached to the loudspeaker frame 7 by means of wire loops 20.
  • FIG. 6 shows a model of a bass loudspeaker, also called a subwoover, which only has a bass loudspeaker 34 arranged in a housing 33, and its cover made of two metal front brackets 35 which are spaced apart from one another and overlap the bass loudspeaker 34 consists.
  • the two front bars 35 are provided, perpendicular to their length, with two S-shaped shaped elements 36 running parallel to one another, the arcuate ends of which partially enclose the respective front bar 35.
  • the attachment of the S-shaped shaped elements 36 by means of the Front bar 35 enclosing and in the arcuate ends of the S-shaped elements 36 engaging eyelets 37 is shown in Fig. 7 in detail.
  • This fastening supply, which completely encloses the front bar 35 is of particular importance as it must be designed to be insensitive to vibrations without a game so as not to cause any noise caused by the low-frequency vibrations in particular in the low-frequency range.
  • two S-shaped shaped elements 19 are attached to the speaker frame 7 of the woofer 34.
  • a special feature is its attachment to the loudspeaker cage 7 on a two adjacent connec tion webs 9 in the circumferential direction connecting intermediate web, which in the present example consists of a metal strip 38 and bridges the basket opening 11. Such an attachment is selected in the case when the connecting webs 9 are not suitable for receiving molded elements themselves.
  • FIG. 9 shows the interior of the housing 33 of this woofer 34. It can be seen that a five-star 39 is attached to a wall surface of the housing 33.
  • the five-star 39 is formed from five wooden strips with a rectangular cross-section, the ends of which meet at a point and are connected to one another in an overlapping manner. Each of the five wooden strips crosses two of the other wooden strips, with one wooden strip at an intersection crossing the first crossed wooden strip on its upper side and the second on its lower side.
  • the five-star 39 is attached to the inner wall of the housing 33 with angles 40.
  • a special feature of this housing 33 is that triangular strips 41, i.e. wooden strips with a triangular cross-section, are glued into the corners, which not only increases its stability, but also audibly improves the sound quality of the woofer 34.
  • the multi-way loudspeaker 42 shown in FIGS. 10 to 14 is finally described. He's in a case 43 housed, which is easily seen in the present example for attachment to a wall, has a sieve-like cover 44 and the corners of which are also glued with triangular strips 41.
  • a triple lemniscate 52 is arranged on the loudspeaker frame 50 of the mid-range loudspeaker 49 as a sound-improving form element, of which two of the three adjacent circles are arranged concentrically to the axis of the two mid-range loudspeakers 49 and their diameter is chosen so that their Circle circumferences each close to the sound outlet opening of the two mid-range speakers 49.
  • the third circle encloses the triangle of the three tweeter loudspeakers 51.
  • the sound-improving shaped elements attached to the loudspeaker frame 46 of the woofer 45 and shown in FIG. 12 are the S-shaped shaped elements 19 and the inner curved shaped element 21 already known from the loudspeaker variants I and II.
  • the connecting web 9 of the loudspeaker frame 46 has also proven to be unsuitable for attaching the S-shaped shaped elements 19, so that two metal strips 53 were provided as intermediate webs for their attachment to the loudspeaker frame 46, one end of which is at a common starting point of the inner Hal terings 8 of the speaker basket 46 was attached and their respective opposite end at a distance from each other on the outer retaining ring 10 of the loudspeaker cherkorbes 46 so that the two metal bands 53 bridge the basket opening 11 in the radial direction V-shaped.
  • the S-shaped shaped elements 19 are screwed onto the metal strips 53.
  • the inner arcuate shaped element 21 is only comparable to the arcuate piece fastened in the cage opening 11 of the loudspeaker cage 7, which has already been described in variant I and shown in FIG with the difference that it is not completely on the contour of the basket opening 1 1, but only selectively in the center of the arc on the inner retaining ring 8 and with its two ends on the outer retaining ring 10 and in this area also the connecting web 9 of the speaker basket 46 touched.
  • the mid-range loudspeakers 49 each have a magnet 54 which are provided with a lemniscate 55 made of a metal wire, a circle of the lemniscate 55 surrounding a magnet.
  • FIG. 14 shows the inside of the cover 44 of the multi-way loudspeaker 42, which is provided with a five-pointed star 56.
  • the wooden bars of the five-star 56 are significantly thinner, mitred with their ends and glued together.
  • a second difference is the intersection of the wooden strips.
  • a first wooden strip crosses a second wooden strip on its upper side and, in its extension, a third wooden strip on its underside, i. H. the intersecting wooden strips of the five-star 56 are interwoven.
  • the five-star 56 is glued to the cover 44.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

L'invention concerne un haut-parleur électrodynamique (2) qui présente un boîtier (1) et au moins un haut-parleur individuel (3). Ledit haut-parleur individuel (3) est constitué d'un saladier de haut-parleur (7), d'un aimant (12) fixé à celui-ci et comportant une bobine mobile agencée axialement rotative dans l'aimant (12) et d'une membrane (13) reliée à la bobine mobile par sa première extrémité et au saladier de haut-parleur (7) par l'autre extrémité. Le saladier de haut-parleur (7) présente un anneau de maintien intérieur (8) et un anneau de maintien extérieur (10) agencé de façon axialement espacée de ce dernier, l'anneau de maintien intérieur (8) et l'anneau de maintien extérieur (10) étant reliés entre eux par l'intermédiaire d'entretoises de liaison (9) s'étendant de façon radialement conique par rapport à l'axe de la bobine mobile de sorte qu'entre deux entretoises de liaison (9) agencées l'une à côté de l'autre est formée une ouverture de saladier (11). Selon l'invention, au moins un élément de forme en forme de S (19) est agencé sur au moins une entretoise de liaison (9) du saladier de haut-parleur (7) et/ou sur une entretoise intermédiaire reliant entre elles deux entretoises de liaison (9) consécutives, et un élément de forme (21, 22) étant agencé sur au moins une ouverture de saladier (11), lequel repose au moins partiellement contre celle-ci.
PCT/DE2020/100647 2019-07-25 2020-07-22 Haut-parleur électrodynamique WO2021013307A1 (fr)

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Application Number Priority Date Filing Date Title
DE102019120140.3 2019-07-25
DE102019120140.3A DE102019120140B3 (de) 2019-07-25 2019-07-25 Elektrodynamischer Lautsprecher

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WO2021013307A1 true WO2021013307A1 (fr) 2021-01-28
WO2021013307A4 WO2021013307A4 (fr) 2021-03-18

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Publication number Priority date Publication date Assignee Title
DE102021127864A1 (de) 2021-10-26 2023-04-27 Karsten Atmani, bürgerlicher Name Buß Lautsprecher

Citations (11)

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DE1020115B (de) 1955-06-08 1957-11-28 Pintsch Licht G M B H Leuchtkondensator
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