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WO1997038876A1 - Dispositif pour la transmission inductive d'energie electrique et de signaux dans des vehicules automobiles - Google Patents

Dispositif pour la transmission inductive d'energie electrique et de signaux dans des vehicules automobiles Download PDF

Info

Publication number
WO1997038876A1
WO1997038876A1 PCT/DE1997/000786 DE9700786W WO9738876A1 WO 1997038876 A1 WO1997038876 A1 WO 1997038876A1 DE 9700786 W DE9700786 W DE 9700786W WO 9738876 A1 WO9738876 A1 WO 9738876A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
rotor
printed circuit
circuit boards
wall
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/DE1997/000786
Other languages
German (de)
English (en)
Inventor
Helmut Bonn
Ulrich Zawidzki
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.)
Petri AG
Original Assignee
Petri AG
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 Petri AG filed Critical Petri AG
Publication of WO1997038876A1 publication Critical patent/WO1997038876A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/04—Arrangements for transmitting signals characterised by the use of a wireless electrical link using magnetically coupled devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/18—Rotary transformers

Definitions

  • the invention relates to a device for the inductive transmission of electrical energy and signals in motor vehicles according to the preamble of claim 1.
  • EP 0 183 580 discloses a device for the contactless transmission of information from stationary vehicle groups to assemblies provided on the steering wheel.
  • a ring-shaped primary coil encased by a shell core
  • an annular secondary coil encased by a shell core, rotatable with the steering wheel, are arranged coaxially to the longitudinal axis, an air gap being present between the shell cores.
  • the coils are wound in a known manner.
  • a device for transmitting electrical energy and data in motor vehicles is known from DE 41 20 650 AI. This device has a transformer consisting of two parts and arranged coaxially to the steering axis.
  • This consists of a shell-shaped core (stator) surrounding the steering column, surrounding the steering column, with a U-cut on the vehicle side, and a shell-shaped core (rotor) surrounding the steering shaft on the steering wheel side, rotatably connected to it, which surrounds the secondary coil and has a U-cut with an air gap in between.
  • a coaxial capacitor is provided in this device. In this device, too, the coils are wound in a known manner.
  • the invention is therefore based on the object of reducing the manufacturing outlay and the space required for the coils in a device for inductive transmission.
  • the invention provides that the coils for the inductive transmission are applied to printed circuit boards which are on opposite sides of the Stator and rotor are attached. It is expedient that the circuit boards are flexible and are fastened to support bodies which can be snapped onto the stator or rotor.
  • the coils applied to printed circuit boards have the advantage that the winding process is omitted, since the coils are formed on the printed circuit boards by means of the etching technique customary for printed circuit boards. These coils thus created take up less space than wound coils.
  • stator and rotor are each formed as hollow cylinders with different diameters, which have a bottom and intermediate walls concentric with their walls, and that the printed circuit boards are arranged on the walls and / or intermediate walls opposite one another are.
  • a first circuit board is fastened to the outer side of an intermediate wall of the rotor and that the wall of the stator is arranged between the wall of the rotor and the intermediate wall of the rotor, a second one on the inside of the wall of the stator Printed circuit board is arranged opposite the first printed circuit board.
  • stator and the rotor consist at least partially, particularly in areas around the coils, of magnetically highly conductive material.
  • material e.g. Ferrite or iron powder material can be used.
  • stator and the rotor consist of ferromagnetic material, for example of free-cutting steel. Although this results in higher coupling losses in the material, the manufacture is simpler and less expensive.
  • this embodiment there is the additional advantage that the radiation of the coils to the outside is prevented and that the radiation of energy is also prevented. This prevents interference in the environment and no external interference can be entered in the transmission link.
  • the printed circuit boards are arranged opposite one another on the bottom of the hollow cylinders of the stator or rotor.
  • the circuit boards can be connected to the associated electrical and electronic assemblies via plugs which are attached separately to the circuit board.
  • a further expedient embodiment provides that the printed circuit boards are provided with direct plug-in connectors for connection to the associated electrical and electronic assemblies.
  • the associated electronics are also arranged on the printed circuit boards.
  • the circuit boards are expediently arranged in the form of conductor foils, to which grid-shaped foil holders are assigned. Films and the lattice-shaped film holders are particularly easy to deform and can therefore be adapted to the curved surfaces to which they must be attached.
  • the film holders are provided with rivet sections for attaching the film holders to the rotor or stator. By means of these sections, the foil holders are riveted, for example, to the bottom of the rotor or stator.
  • the lattice-shaped film holders stabilize the film with the electronic components arranged thereon on the one hand and on the other hand protect the components from damage. The components are preferably arranged on the film between the holding webs of the film holder.
  • FIG. 1 shows an exploded view of a steering wheel arrangement with a transmission device according to the invention
  • FIG. 2 shows the transmission device of FIG. 1 as an enlarged section
  • FIG. 3 shows a second embodiment of the transmission device in a sectional view
  • Fig. 4 is a schematic representation of an elongated circuit board
  • Figure 5 is a schematic representation of an elongated circuit board in foil form with a foil holder.
  • FIG. 6 shows a film holder for a flat annular printed circuit board in film form
  • FIG. 7 shows a block diagram with a transmission device.
  • 1 shows a steering wheel 1 and a steering column cover 2 as a stationary assembly, between which energy and data are to be transmitted by means of a transmission device 3.
  • This device has a stator 4, which can be fastened to the steering column trim 2, and a rotor 5, which can be fastened to the steering wheel 1.
  • the stator 4 is designed as a flat hollow cylinder with a bottom 6 and a wall 7. Furthermore, the stator 4 has an intermediate wall 8 running concentrically to the wall 7. On the inside of the wall 7, a support body or film holder 9 is attached, on which a flexible circuit board 10, e.g. is applied in foil form. The support body and the printed circuit board extend over the entire circumference of the wall 7.
  • the printed circuit board 10 carries a coil 11 which is produced in a known manner by etching on the printed circuit board.
  • the circuit board carries electronic components 29. Plugs 12 are provided on the circuit board for the electrical connection of the coil 11 and the components 29 to the associated assemblies in the motor vehicle.
  • the rotor is also designed as a flat hollow cylinder with a bottom 13 and a wall 14. Furthermore, the rotor has an intermediate wall 15 running concentrically to the wall 14. The diameter of the rotor is larger than that of the stator, so that the rotor, as shown in the figures, can be put over the stator and the wall 14 covers the wall 7 of the stator.
  • the wall 7 of the stator lies between the wall 14 and the intermediate wall 15 of the rotor.
  • a support body or film holder 16 is fastened, on which a flexible printed circuit board 17, for example in the form of a film, is applied. The support body and the circuit board extend over the entire circumference of the intermediate wall 15.
  • the printed circuit board carries a coil 18, which is likewise produced in a known manner by etching on the printed circuit board.
  • the printed circuit board carries electronic components 29.
  • the coil 18 lies opposite the coil 11 of the stator.
  • connectors 19 are provided on the circuit board.
  • the stator and the rotor are made of ferrite. Since the coils lie between the wall 7 and the intermediate wall 15 and these are additionally shielded from the outside or inside by the wall 14 and the intermediate wall 8, the undesired radiation or radiation of electromagnetic radiation is largely prevented.
  • flat annular printed circuit boards 10a are provided on a stator 4a and opposite flat annular printed circuit boards 17a are provided on a rotor 5a.
  • the stator 4a has a bottom 6a, a wall 7a and an intermediate wall 8a.
  • the rotor also has a bottom 13a, a side wall 14a and an intermediate wall 15a.
  • the rotor and stator are also made of ferrite. Since the printed circuit boards are arranged between the floors, walls and partition walls, as in the previous exemplary embodiment, radiation and radiation are largely prevented.
  • FIG. 4 shows a printed circuit board that can be used for the embodiment of FIG. 2 in an elongated form.
  • the coil 11 or 18 and the electronic components 29 can be seen schematically on the circuit board.
  • 5 schematically shows a film holder 16 for fastening a film-like printed circuit board 10 or 17.
  • the film holder 16 has a circumferential edge 30 and holding webs 31 which press the film against the wall 7 or 15 and thus hold it.
  • the film holder has molded-on rivet sections 32 which are used to fasten the film holder to the bottom 6 or 13.
  • the film holder 33 of FIG. 6 is provided for holding the annular flat printed circuit boards 10a, 17a shown in FIG. 3 in film form.
  • This film holder has an inner edge 34 and an outer edge 35, between which retaining webs 36 extend.
  • the film holder is provided with molded rivet sections 37 and 38 on the inner and outer edges, respectively, which serve to fasten the film holder to the bottom 6a and 13a.
  • FIG. 7 shows a block diagram which shows the connection of the transmission device 3 according to the invention to the electronic assemblies of the motor vehicle and the steering wheel. It can be seen that the coil 11 of the stator 4 is connected to control electronics 20 to which an energy supply 21, a data bus 22 and an audio line are connected
  • the coil 18 of the rotor 5 is equipped with evaluation electronics
  • an electrical power of approximately 200 watts can be transmitted at a frequency of 100 kHz.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Controls (AREA)
  • Control Of Electric Motors In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un dispositif pour la transmission inductive d'énergie électrique et de données dans des véhicules automobiles, entre des modules stationnaires et le volant de direction, au moyen d'un stator et d'un rotor. Conformément à l'invention, le dispositif est caractérisé en ce que les bobines (11, 18) pour la transmission inductive sont disposées sur des plaquettes de circuits imprimés (10, 17) qui sont fixées sur les côtés opposés du stator (4) et du rotor (5). Les plaquettes de circuits imprimés sont de préférence flexibles et sont fixées sur des supports qui peuvent être verrouillés par enclenchement sur le stator ou le rotor.
PCT/DE1997/000786 1996-04-17 1997-04-15 Dispositif pour la transmission inductive d'energie electrique et de signaux dans des vehicules automobiles Ceased WO1997038876A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29607713U DE29607713U1 (de) 1996-04-17 1996-04-17 Vorrichtung zur induktiven Übertragung von Elektroenergie und von Signalen in Kraftfahrzeugen
DE29607713.5 1996-04-17

Publications (1)

Publication Number Publication Date
WO1997038876A1 true WO1997038876A1 (fr) 1997-10-23

Family

ID=8023262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/000786 Ceased WO1997038876A1 (fr) 1996-04-17 1997-04-15 Dispositif pour la transmission inductive d'energie electrique et de signaux dans des vehicules automobiles

Country Status (2)

Country Link
DE (1) DE29607713U1 (fr)
WO (1) WO1997038876A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169339B1 (en) 1999-03-31 2001-01-02 Methode Electronics, Inc. Rotating signal transducer
WO2001023243A1 (fr) * 1999-09-30 2001-04-05 Daimlerchrysler Ag Module a systeme capteur d'angle, a transmission d'energie sans contact et a transmission d'informations sans contact
WO2002025616A1 (fr) * 2000-09-20 2002-03-28 Robert Bosch Gmbh Transformateur inductif
WO2005043567A1 (fr) * 2003-11-03 2005-05-12 Abb Research Ltd. Transformateur rotatif
JP2019211819A (ja) * 2018-05-31 2019-12-12 株式会社シマノ 電子装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19647705C2 (de) * 1996-11-11 1998-10-08 Petri Ag Vorrichtung zur Ermittlung der Winkelstellung des Lenkrades in einem Kraftfahrzeug
FR2819223B1 (fr) * 2001-01-09 2003-05-23 Trw France Dispositif de commande sous volant pour vehicule automobile
DE102007054952B4 (de) * 2007-11-17 2009-07-16 Tyco Electronics Amp Gmbh Wickelfeder
DE102008010018A1 (de) * 2008-02-20 2009-08-27 LFK Lenkflugkörpersysteme GmbH Richtkopf mit berührungsloser Energie- und Datenübertragung
EP2688078A1 (fr) * 2012-07-17 2014-01-22 Stichting Nationaal Lucht- en Ruimtevaart Laboratorium Alimentation et transfert de données sans contact
DE102013002052B4 (de) 2013-01-15 2018-10-11 Sew-Eurodrive Gmbh & Co Kg Drehübertrager
CN107331146B (zh) * 2017-07-20 2020-05-05 广东美的制冷设备有限公司 遥控器及空调系统
EP3552886A1 (fr) * 2018-04-09 2019-10-16 IDT Europe GmbH Interface de capteur sans fil pour volant de direction

Citations (5)

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Publication number Priority date Publication date Assignee Title
FR2583360A1 (fr) * 1985-06-17 1986-12-19 Peugeot Aciers Et Outillage Dispositif destine notamment au transfert d'energie entre une partie fixe d'une colonne de direction d'un vehicule automobile et un volant de direction
DE3812631C1 (en) * 1988-04-15 1989-04-13 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Device for contactless interrogation of the state of electrical switching or triggering means in a motor vehicle
DE4407277A1 (de) * 1993-03-24 1994-09-29 Siemens Ag Elektrischer Übertrager
DE4404816A1 (de) * 1994-02-16 1995-08-17 Pars Passive Rueckhaltesysteme Vorrichtung zur Übertragung von Energie und Daten zwischen der Fahrzeug- und der Lenkradseite von Kraftfahrzeugen
DE29518443U1 (de) * 1995-11-22 1996-01-18 DODUCO GMBH + Co. Dr. Eugen Dürrwächter, 75181 Pforzheim Einrichtung zur leitungsgebundenen, uni- oder bidirektionalen Übertragung von elektrischen Signalen zu einem Lenkrad eines Fahrzeuges

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DE2520934C3 (de) * 1975-05-10 1982-07-08 Blaupunkt-Werke Gmbh, 3200 Hildesheim Gedruckte Spule
DE2632039A1 (de) * 1976-07-16 1978-01-19 Reinshagen Kabelwerk Gmbh Spule in form einer flexiblen gedruckten leiterplatte
DE7628700U1 (de) * 1976-09-14 1977-06-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektronische Baugruppe
DE7824483U1 (de) * 1978-08-17 1978-11-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Baugruppe mit einer gedruckten Leiterfolie
FR2572845B1 (fr) * 1984-11-06 1987-03-20 Peugeot Aciers Et Outillage Dispositif de transmission, par couplage magnetique, d'informations issues d'organes de commande montes sur un volant de direction a un organe solidaire d'un vehicule
DE8507860U1 (de) * 1985-03-16 1985-06-05 Diamant-Electronic Horst Hansen, 2870 Delmenhorst Gedruckte Schaltungsplatine für einen Hochfrequenz-Empfangs-Konverter
DE9002941U1 (de) * 1989-04-05 1990-06-21 Metz-Werke GmbH & Co KG, 8510 Fürth Anordnung, bestehend aus einer photographischen Kamera mit integriertem Blitzgerät und einem Zusatzblitzgerät
DE4019241A1 (de) * 1990-06-15 1991-12-19 Telefunken Electronic Gmbh Energie- und signaluebertragungssystem
DE4120650A1 (de) * 1991-06-22 1992-12-24 Kolbenschmidt Ag Vorrichtung zur uebertragung von elektrischer energie und daten in kraftfahrzeugen
JP2713529B2 (ja) * 1992-08-21 1998-02-16 三菱電機株式会社 信号受信用コイルおよびこれを使用した非接触ｉｃカード
DE4329315C1 (de) * 1993-08-31 1994-12-08 Siemens Ag System zur kontaktlosen Daten- bzw. Energieübertragung
DE4427883C1 (de) * 1994-08-08 1995-12-14 Kostal Leopold Gmbh & Co Kg Einrichtung für Kraftfahrzeuge
DE4433701A1 (de) * 1994-09-21 1996-03-28 Siemens Ag Vorrichtung zur berührungslosen Energie- und Datenübertragung auf induktivem Wege, und bevorzugte Verwendung derselben zur Identifikation von Gasflaschen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2583360A1 (fr) * 1985-06-17 1986-12-19 Peugeot Aciers Et Outillage Dispositif destine notamment au transfert d'energie entre une partie fixe d'une colonne de direction d'un vehicule automobile et un volant de direction
DE3812631C1 (en) * 1988-04-15 1989-04-13 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Device for contactless interrogation of the state of electrical switching or triggering means in a motor vehicle
DE4407277A1 (de) * 1993-03-24 1994-09-29 Siemens Ag Elektrischer Übertrager
DE4404816A1 (de) * 1994-02-16 1995-08-17 Pars Passive Rueckhaltesysteme Vorrichtung zur Übertragung von Energie und Daten zwischen der Fahrzeug- und der Lenkradseite von Kraftfahrzeugen
DE29518443U1 (de) * 1995-11-22 1996-01-18 DODUCO GMBH + Co. Dr. Eugen Dürrwächter, 75181 Pforzheim Einrichtung zur leitungsgebundenen, uni- oder bidirektionalen Übertragung von elektrischen Signalen zu einem Lenkrad eines Fahrzeuges

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169339B1 (en) 1999-03-31 2001-01-02 Methode Electronics, Inc. Rotating signal transducer
WO2001023243A1 (fr) * 1999-09-30 2001-04-05 Daimlerchrysler Ag Module a systeme capteur d'angle, a transmission d'energie sans contact et a transmission d'informations sans contact
US6651999B1 (en) 1999-09-30 2003-11-25 Daimlerchrysler Ag Module with an angle sensor technology, contactless energy transmission and contactless information transmission
DE19946934B4 (de) * 1999-09-30 2011-09-29 Ramsle Technology Group Gmbh, Llc Modul mit Winkelsensorik, berührungsloser Energieübertragung und berührungsloser Informationsübertragung
WO2002025616A1 (fr) * 2000-09-20 2002-03-28 Robert Bosch Gmbh Transformateur inductif
JP2004510325A (ja) * 2000-09-20 2004-04-02 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 誘導型変圧器
US7053791B2 (en) 2000-09-20 2006-05-30 Robert Bosch Gmbh Inductive transformer
WO2005043567A1 (fr) * 2003-11-03 2005-05-12 Abb Research Ltd. Transformateur rotatif
US7911307B2 (en) 2003-11-03 2011-03-22 Abb Research Ltd Rotary transformer
JP2019211819A (ja) * 2018-05-31 2019-12-12 株式会社シマノ 電子装置

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