WO2009016002A2 - Avertisseur 'fanfare' pour un véhicule à moteur - Google Patents

Avertisseur 'fanfare' pour un véhicule à moteur Download PDF

Info

Publication number
WO2009016002A2
WO2009016002A2 PCT/EP2008/058782 EP2008058782W WO2009016002A2 WO 2009016002 A2 WO2009016002 A2 WO 2009016002A2 EP 2008058782 W EP2008058782 W EP 2008058782W WO 2009016002 A2 WO2009016002 A2 WO 2009016002A2
Authority
WO
WIPO (PCT)
Prior art keywords
fanfare
housing
plastic
housing part
diaphragm
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/EP2008/058782
Other languages
German (de)
English (en)
Other versions
WO2009016002A3 (fr
Inventor
Juergen Uebbing
Thomas Kotz
Jose Recena
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.)
Robert Bosch GmbH
Clarton Horn SA
Original Assignee
Robert Bosch GmbH
Clarton Horn SA
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 Robert Bosch GmbH, Clarton Horn SA filed Critical Robert Bosch GmbH
Publication of WO2009016002A2 publication Critical patent/WO2009016002A2/fr
Publication of WO2009016002A3 publication Critical patent/WO2009016002A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • 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 a fanfare for a motor vehicle according to the preamble of the independent claim.
  • a fanfare or a bugle for a motor vehicle in which / consisting of two half-shells, outer housing is made of plastic.
  • a diaphragm is held, which serves to generate a signal tone with at least one characteristic frequency.
  • the diaphragm has a movable magnetic core, which is set in vibration by a surrounding electrical coil of an electromagnetic drive.
  • a metal magnetic return ring In order to concentrate the magnetic field of the electric coil on the movable magnetic core and a fixed magnetic core located inside the electrical coil, it is surrounded by a metal magnetic return ring.
  • a corresponding fanfare with serving as a magnetic yoke ring metal cup and a plastic housing also shows the WO 98/52170.
  • the fanfare according to the invention for a motor vehicle, having an electric coil having electromagnetic
  • the housing is made entirely of plastic and serves as a magnetic return ring for the electrical coil of the electromagnetic drive.
  • the electric coil is at least at one
  • the housing is interspersed with metal particles at least in the region of the magnetic return ring and / or the plastic part surrounding the electrical coil.
  • An improved corrosion resistance and a higher impermeability to moisture penetration is achieved by connecting a plastic fanfare horn to the housing using plastic joining technology.
  • the housing consists of a first housing part for receiving the electromagnetic drive and a second housing part, wherein the first housing part at least partially serves as a magnetic return ring.
  • the diaphragm is held on an outer peripheral region by a connection point between the first housing part and the second housing part.
  • Increased corrosion resistance also results if the second housing part has a fanfare horn and the first housing part is connected to the second housing part by means of plastic joining technology.
  • plastic joining technology comes in this Associated laser welding, ultrasonic welding, vibration welding or the like in question.
  • FIG. 2 shows a schematic representation of a first housing part of the inventive fanfare
  • FIG. 3 shows a schematic representation of a second housing part of the inventive fanfare
  • Fig. 4 a schematic representation of the plastic joining technique for permanent connection of the first and second housing part.
  • FIG. 1 shows a fanfare system 10 for a motor vehicle.
  • This has a housing 12 which consists of a first housing part 14 and a second housing part 16. Between the two housing parts 14 and 16, a diaphragm 18 for - A -
  • Both housing parts 14 and 16 are made entirely of plastic. In this way it is possible to save weight compared to a metal case often used in fanfares.
  • the first housing part 14 serves as a housing bottom 24, into which according to FIG. 2 an electromagnetic drive 26 with an electric coil 28 is embedded.
  • the housing bottom 24 has a corresponding recess 30.
  • the housing 12 serves as a magnetic return ring 32 for concentrated guidance of the magnetic field lines generated as a result of an electrical current flowing through the electrical coil 28.
  • a further concentration of the magnetic field lines is achieved when the electrical coil 28 is abutted on a side facing the diaphragm 18 by a plastic part 34, which serves as a magnetic return ring 32.
  • the plastic part 34 the electric coil 28 but also completely surrounded.
  • the second housing part 16 can be embodied either as a housing cover 36 with an attached fanfare horn 38 or directly as a fan cover horn 40 serving as a housing cover, in which case plastic is used as the housing material.
  • FIG. 3 shows the second housing part 16 from a further perspective. In this case, a sound inlet opening 42 is visible, through which the air generated by the diaphragm 18 is pressed into the fanfare horn 38 for increased sound generation.
  • Diaphragm 18 is vibrated to generate sound.
  • an AC signal is applied via a plug-in contact 44 that is fed into the electrical coil 28 via plug-in contacts 46 cast into the housing bottom 14 as well as a break contact 48.
  • a first magnetic core 50 is fixedly connected, which is surrounded in the axial direction in part by the electric coil 28.
  • a second magnetic core 52 is connected, which dips into the electrical coil 28 in the assembled state of the fanfare 10.
  • magnetic field lines are generated as a result of the resulting alternating field, which generates a movement of the second magnetic core 52 and thus cause the diaphragm 18 with the frequency of the alternating field.
  • the diaphragm 18 Due to its movement, the diaphragm 18 generates a sound pressure that is acoustically amplified by means of the fanfare horn 38.
  • the break contact 48 is opened at too high a deflection by the movable magnetic core 52 striking it, resulting in an interruption of the power supply.
  • the housing 12 in the region of the magnetic return ring 32 and / or the plastic part 34 surrounding the electrical coil 28 are penetrated with metal particles.
  • the two housing parts 14 and 16 are connected in such a way by means of plastic joining technology that they hold or fix the diaphragm 18 on its outer circumferential area 20.
  • Outer peripheral portion 20 compared to the total radius of the diaphragm 18 only a small part, so as not to dampen the vibration of the diaphragm 18.
  • plastic joining technique laser welding, ultrasonic welding or vibration welding can be used.
  • the first housing part 14 axially and / or radially overlaps the second housing part 16 in an edge region 54.
  • plug contacts 46 and printed circuit boards or lead frames at least partially be encapsulated by the plastic of the housing 12 to allow better fixation of these inserts and consequent simpler installation and a lower manufacturing cost of the fanfare 10 by reducing their individual components.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un avertisseur 'fanfare' (10) pour un véhicule à moteur, constitué d'un système d'entraînement électromagnétique (26) à bobine électrique (28) pour une membrane (18) et d'un boîtier (12), prévu pour loger le système d'entraînement électromagnétique (26) et la membrane (18). L'avertisseur 'fanfare' se caractérise en ce que le boîtier (26) est entièrement composé de plastique et sert de culasse magnétique annulaire (32) pour la bobine électrique (28) du système d'entraînement électromagnétique (26).
PCT/EP2008/058782 2007-07-30 2008-07-07 Avertisseur 'fanfare' pour un véhicule à moteur Ceased WO2009016002A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007035968.5 2007-07-30
DE200710035968 DE102007035968A1 (de) 2007-07-30 2007-07-30 Fanfare für ein Kraftfahrzeug

Publications (2)

Publication Number Publication Date
WO2009016002A2 true WO2009016002A2 (fr) 2009-02-05
WO2009016002A3 WO2009016002A3 (fr) 2009-10-15

Family

ID=40175749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/058782 Ceased WO2009016002A2 (fr) 2007-07-30 2008-07-07 Avertisseur 'fanfare' pour un véhicule à moteur

Country Status (2)

Country Link
DE (1) DE102007035968A1 (fr)
WO (1) WO2009016002A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2293287A1 (fr) * 2009-09-03 2011-03-09 Delphi Technologies, Inc. Sirène compacte pour véhicule automobile
DE102012013392A1 (de) 2012-07-05 2014-01-09 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Elektrische Hornvorrichtung für einFahrzeug und Fahrzeug

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1146414B (de) * 1959-09-14 1963-03-28 Westfaelische Metall Ind K G Elektromagnetisches Signalhorn mit Kunststoffgehaeuse
DE1184676B (de) * 1962-10-20 1964-12-31 Rau Swf Autozubehoer Elektromagnetisches Signalhorn
FR1361021A (fr) * 1963-06-21 1964-05-15 Gen Motors Corp Avertisseur sonore pour véhicule
FR2644277A1 (fr) * 1989-03-09 1990-09-14 Neiman Sa Pavillon, platine pour avertisseur sonore, notamment pour vehicule automobile et avertisseur sonore comportant un tel pavillon ou une telle platine
DE4103016A1 (de) * 1991-02-01 1992-08-06 Uhrenwerke Ruhla Gmbh Elektromagnetischer signalgeber
IT1266913B1 (it) 1994-08-05 1997-01-21 Fiamm Componenti Accessori Spa Avvisatore acustico, particolarmente per autoveicoli.
WO1998052170A1 (fr) 1997-05-14 1998-11-19 Sparton Corporation Avertisseur en plastique

Also Published As

Publication number Publication date
DE102007035968A1 (de) 2009-02-05
WO2009016002A3 (fr) 2009-10-15

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