EP0622776B1 - Trompe électromagnétique de signalisation - Google Patents

Trompe électromagnétique de signalisation Download PDF

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Publication number
EP0622776B1
EP0622776B1 EP94106024A EP94106024A EP0622776B1 EP 0622776 B1 EP0622776 B1 EP 0622776B1 EP 94106024 A EP94106024 A EP 94106024A EP 94106024 A EP94106024 A EP 94106024A EP 0622776 B1 EP0622776 B1 EP 0622776B1
Authority
EP
European Patent Office
Prior art keywords
electromagnetic signal
signal horn
diaphragm
disc
horn according
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.)
Expired - Lifetime
Application number
EP94106024A
Other languages
German (de)
English (en)
Other versions
EP0622776A2 (fr
EP0622776A3 (en
Inventor
Ullrich Kellner
Stefan Gepfert
Franz-Josef Schlüter
Harald Dietz
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0622776A2 publication Critical patent/EP0622776A2/fr
Publication of EP0622776A3 publication Critical patent/EP0622776A3/de
Application granted granted Critical
Publication of EP0622776B1 publication Critical patent/EP0622776B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Definitions

  • the invention relates to an electromagnetic signal horn according to the preamble of claim 1.
  • Such a bugle is from the German Interpretation 17 66 098 previously known.
  • the connecting channel this known bugle is made from a radial Recess in the central opening of the membrane and one each radial slot of two on both sides of the membrane intermediate washers formed.
  • the invention has the task of an electromagnetic To create a signal horn, with which also assembly technology simple and inexpensive means a connecting channel to connect the chamber with the environment, to allow the chamber to exchange air with the environment enable.
  • the Central opening is a polygonal hole, the edge distance slightly larger than the diameter of the Fastener is.
  • the central opening is a polygonal hole, can unlike the previous one when assembling the membrane the angular position of the membrane with the magnetic anchor Magnetic anchors can be any, because in any case with everyone possible orientation of these two parts to each other Air exchange through the polygonal hole from the chamber to the environment and vice versa.
  • the assembly of the electromagnetic Bugle can be compared to the previously known solutions be simplified considerably, since no special one Angular orientation of the parts to each other can be guaranteed got to.
  • a radial groove in a membrane contact surface of the magnet armature are provided.
  • This can help the previously known solutions to the magnet armature facing second separate disc can be dispensed with.
  • There such magnet armature together with the mounting mandrel Solid material can also be beaten in this Work the radial groove.
  • a ring channel which is advantageous in the Membrane contact surface of the magnet armature near the Fastening mandrel can be arranged. This ring channel improves the air exchange from the through the housing and the membrane formed over the radial groove to the radial recesses of the polygonal hole in the event that the air exchange made possible anyway by the polygonal hole shouldn't be enough.
  • a disk can be provided particularly advantageously, the unlike the previous one, not slots, but one has another radial groove.
  • This radial groove has the advantage over a slot that the material of the Disc only slightly weakened in the area of the groove is what a better dimensional accuracy of the disc also after the connection of the magnet armature with the membrane.
  • the further radial groove also points manufacturing advantages because this groove in the pane surface can be hammered in.
  • the disc can advantageously several more have radial grooves on opposite sides the disc are arranged angularly offset from each other.
  • the bugle is a Fanfare with one of the membranes downstream Bell is.
  • the measures according to the invention are also applicable to horns without a horn. In fanfares, however, the bell prevents this Actuation of the surrounding end of the channel with Splash water.
  • the electromagnetic signal horn is shown in FIG Housing (1) that by means of a membrane (2) is closed that a chamber (3) forms. Within the chamber (3) is an electromagnetic drive (4) provided that when the coil is energized electromagnetic drive (4) a magnet armature (5) in an opening of the electromagnetic drive (4) pulls in.
  • the magnet armature (5) has one Fastening mandrel (6) through a central opening of the Membrane (2) is inserted.
  • the electromagnetic signal horn according to FIG. 1 is as Fanfare trained so that the membrane (2) a Sound funnel (7) on that facing away from the chamber (3) Page is downstream.
  • FIG. 2 are the same or equivalent Furnishing parts, as in Figure 1, with the same Provide reference numerals. It can be seen in FIG. 2 that the Magnetic armature (5) next to the fastening mandrel (6) Has membrane support surface (8), in which a radial of groove (9) extending outward from the fastening mandrel (6) has hit. The fastening mandrel (6) has a diameter (D).
  • the membrane (2) has a square hole (11) on that as a central opening for receiving the Fastening mandrel (6) of the magnet armature (5) is used.
  • This Square hole (11) has an edge distance (A) that slightly larger than the diameter (D) of the Attachment mandrel (6) in Figure 2, so that the edges of the Square hole (11) for centering the Fastening mandrel (6) and thus the magnet armature (5) to serve.
  • Form the corners of the square hole (11) in contrast, together with the fastening mandrel (6) holes, past which an air exchange of the chamber (3) in FIG. 1 with the environment of the electromagnetic bugle is made possible.
  • FIG. 5 shows a disk (12) that is on a first on the side pointing away from the drawing level further groove (13) and on the drawing level facing side, shown in dashed lines, a second has further groove (14).
  • the grooves are in one Angle of 180 degrees offset from one another by one unnecessary material weakening of the disc (12) in the area of Avoid grooves that are in direct Overlying the grooves would result.
  • FIG. 6 shows the same or equivalent Furnishing parts as in Figures 1 to 5 with the provided with the same reference numerals.
  • the fastening mandrel (6) for fastening the Magnetic armature (5) with the washer (12) and the membrane (2) has a caulking (15).
  • the Figure 6 shows the grooves (9, 13, 14), of which the Grooves (9, 13) together with an edge of the square hole (11) the connecting channel for connecting the chamber with the Form environment.
  • FIG. 7 This can be seen particularly well in FIG Detail x in the figure 6 shows enlarged and in the the air duct (16) from the chamber (3) to the environment and is shown reversed. It can be seen in FIG. 7 that an air exchange from the chamber (3) via the groove (9) and the ring channel (10) through the square hole (11) and is made possible via the first further groove (13) without special orientation during assembly mentioned parts required with regard to their angular position would.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnets (AREA)
  • Vibration Prevention Devices (AREA)
  • Waveguide Aerials (AREA)
  • Reciprocating Pumps (AREA)

Claims (9)

  1. Avertisseur acoustique électromagnétique, comportant un boítier (1), une membrane (2) qui est reliée au boítier (1) dans ses zones de bordure et qui, en commun avec le boítier (1), forme une chambre (3), ainsi qu'un mécanisme d'entraínement électromagnétique (4) disposé à l'intérieur de la chambre (3), qu'une armature d'électro-aimant (5) qui est disposée à l'intérieur de la chambre (3) et présente un mandrin de fixation (6) qui passe par une ouverture centrale (11) de la membrane (2) et que, pour relier la chambre (3) à l'environnement, un canal de liaison qui présente un évidement radial dans l'ouverture centrale (11) de la membrane (2), caractérisé par le fait que l'ouverture centrale (11) est un trou carré dont la cote (A) entre bords est légèrement supérieure au diamètre (D) du mandrin de fixation (6).
  2. Avertisseur acoustique électromagnétique selon la revendication 1, caractérisé par le fait que l'ouverture centrale (11) est un trou carré.
  3. Avertisseur acoustique électromagnétique selon la revendication 1, caractérisé par le fait qu'une surface d'appui de membrane (8) de l'armature d'électro-aimant (5) présente une rainure radiale (9).
  4. Avertisseur acoustique électromagnétique selon la revendication 1, caractérisé par le fait qu'une surface d'appui de membrane (8) de l'armature d'électro-aimant (5) présente un canal annulaire (10) disposé sur le mandrin de fixation (6).
  5. Avertisseur acoustique électromagnétique selon la revendication 1, caractérisé par le fait que sur la face de la membrane (2) située du côté opposé à l'armature d'électro-aimant (5) est prévue une rondelle (12) qui présente une autre rainure radiale (13).
  6. Avertisseur acoustique électromagnétique selon la revendication 5, caractérisé par le fait que la rondelle (12) présente plusieurs autres rainures radiales (13, 14) qui sont disposées angulairement décalées l'une par rapport à l'autre sur les faces opposées de la rondelle (12).
  7. Avertisseur acoustique électromagnétique selon la revendication 6, caractérisé par le fait que la rondelle (12) présente deux autres rainures radiales (13, 14) qui sont disposées décalées de 180° l'une par rapport à l'autre.
  8. Avertisseur acoustique électromagnétique selon la revendication 1, caractérisé par le fait que l'armature d'électro-aimant (5) est reliée à la membrane (2) au moyen d'un matage (15) du mandrin de fixation (6).
  9. Avertisseur acoustique électromagnétique selon la revendication 1, caractérisé par le fait que l'avertisseur acoustique est une fanfare comportant un pavillon (7) disposé après la membrane (2).
EP94106024A 1993-04-30 1994-04-19 Trompe électromagnétique de signalisation Expired - Lifetime EP0622776B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4314242 1993-04-30
DE4314242A DE4314242C1 (de) 1993-04-30 1993-04-30 Elektromagnetisches Signalhorn

Publications (3)

Publication Number Publication Date
EP0622776A2 EP0622776A2 (fr) 1994-11-02
EP0622776A3 EP0622776A3 (en) 1995-11-15
EP0622776B1 true EP0622776B1 (fr) 1998-02-25

Family

ID=6486811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94106024A Expired - Lifetime EP0622776B1 (fr) 1993-04-30 1994-04-19 Trompe électromagnétique de signalisation

Country Status (4)

Country Link
US (1) US5592145A (fr)
EP (1) EP0622776B1 (fr)
DE (2) DE4314242C1 (fr)
ES (1) ES2113009T3 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492932C (de) * 1930-02-27 Westfaelische Metall Ind A G Akustisches Signalinstrument
US2301487A (en) * 1940-02-28 1942-11-10 Gen Motors Corp Electric horn
DE1766098B2 (de) * 1967-04-07 1971-09-23 Elektromagnetisches schallhorn
IT1072616B (it) * 1976-11-11 1985-04-10 Fiamm Componenti Accessori Spa Avvisatore acustico con custodia deformabile plasticamente nel senso parallelo all'asse di regolazione per la taratura del traferro nei tipi elettromagnetici e della pressione di esercizio nei tipi elettropneumatici
IT1126439B (it) * 1979-11-29 1986-05-21 Leonardo Beltrame Avvisatore elettromagnetico a struttura perfezionata in particolare per veicoli
US4361952A (en) * 1981-02-23 1982-12-07 Sparton Corporation Method of adjusting air gap of an electric horn
US4441099A (en) * 1981-02-23 1984-04-03 Sparton Corporation Diaphragm horn
US4763109A (en) * 1986-01-02 1988-08-09 Smith Robert E Acoustical vehicle horn with improved vent
US4728933A (en) * 1986-03-24 1988-03-01 U.S. Holding Company, Inc. Miniature dual cavity ringer
FR2659476A1 (fr) * 1990-03-08 1991-09-13 Neiman Sa Avertisseur sonore a conduit de respiration, notamment pour vehicules automobiles.

Also Published As

Publication number Publication date
US5592145A (en) 1997-01-07
ES2113009T3 (es) 1998-04-16
DE59405286D1 (de) 1998-04-02
EP0622776A2 (fr) 1994-11-02
EP0622776A3 (en) 1995-11-15
DE4314242C1 (de) 1994-04-07

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