DE102004046371A1 - Holding device for ferrite cores and ferrite antenna with such a holding device - Google Patents
Holding device for ferrite cores and ferrite antenna with such a holding device Download PDFInfo
- Publication number
- DE102004046371A1 DE102004046371A1 DE102004046371A DE102004046371A DE102004046371A1 DE 102004046371 A1 DE102004046371 A1 DE 102004046371A1 DE 102004046371 A DE102004046371 A DE 102004046371A DE 102004046371 A DE102004046371 A DE 102004046371A DE 102004046371 A1 DE102004046371 A1 DE 102004046371A1
- Authority
- DE
- Germany
- Prior art keywords
- ferrite
- core
- ferrite core
- holding means
- antenna
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/20—Resilient mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
- H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Support Of Aerials (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Die Erfindung betrifft eine Ferritantenne, insbesondere eine Ferritantenne für Kraftfahrzeuge.The The invention relates to a ferrite antenna, in particular a ferrite antenna for motor vehicles.
Ferritantennen sind aus dem Stand der Technik hinlänglich bekannt. Ferritantennen werden in Kraftfahrzeugen beispielsweise zur drahtlosen Kommunikation mit Codegebern benötigt. Eine derartige Ferritantenne ist beispielsweise aus der Druckschrift mit der Veröffentlichungsnummer WO 02/095873 A2 benannt. Die Ferritantenne weist eine Wicklung auf, die um einen Kern aus Ferritmaterial herum angeordnet ist. Dem die Wicklung tragenden ersten Kern, der fest in einem Haltemittel angeordnet ist, ist ein zweiter Kern aus Ferritmaterial zugeordnet, der koaxial zum ersten Kern in axialer Richtung bewegbar im gleichen Haltemittel angeordnet ist. Einander zugewandten Stirnflächen der beiden Kerne können einen vorgegebenen, durch Bewegung des zweiten Kerns in axialer Richtung zu Abgleichzwecken veränderbaren Abstand voneinander aufweisen, wobei der zweite Kern nach dem Abgleich an dem Haltemittel festgelegt werden kann.ferrite are well known in the art. ferrite in motor vehicles, for example, for wireless communication needed with encoders. Such a ferrite antenna is for example from the publication with the publication number Named WO 02/095873 A2. The ferrite antenna has a winding, the is arranged around a core of ferrite material around. The winding carrying the first core, which is firmly arranged in a holding means is a second core of ferrite material is assigned, which is coaxial with the first core movable in the axial direction in the same holding means is arranged. Mutually facing end faces of the two cores can have a predetermined, by moving the second core in the axial direction for balancing purposes changeable Spaced apart, with the second core after alignment can be set on the holding means.
Die in der Druckschrift offenbarte Ferritantenne hat sich in der Vergangenheit als geeignet erwiesen. Lediglich die Abstimmung der Antenne und das anschließende Festlegen des zweiten Ferritkerns in seiner abgestimmten Position, bereitet einige Mühe. Die Position, in welcher der zweite Ferritkern festgelegt wird, unterscheidet sich von Ferritantenne zu Ferritantenne aufgrund der mechanischen Toleranzen der Ferritkerne. Während der Montage des zweiten Ferritkerns muss also eine Veränderung des Abstands zwischen dem ersten Ferritkern und dem zweiten Ferritkern möglich sein. Der zweite Ferritkern ist daher frei auf dem Haltemittel verschiebbar. Dieses führt bei der Montage des Ferritkerns der aus der genannten Druckschrift bekannten Ferritantenne dazu, dass nach der Abstimmung der Antenne und vor dem Festlegen des zweiten Ferritkerns ein unbeabsichtigtes Verschieben des zweiten Ferritkerns möglich ist. Ist es zufällig und unbeabsichtigt zu einer Verschiebung des zweiten Ferritkerns nach dem Abstimmen gekommen, verändert sich das Frequenzverhalten der Antenne und die Ferritantenne kann nur eingeschränkt brauchbar oder gar unbrauchbar sein.The Ferrite antenna disclosed in the document has been in the past proved to be suitable. Only the tuning of the antenna and the subsequent Fixing the second ferrite core in its tuned position, is preparing some trouble. The position in which the second ferrite core is set, differs from ferrite antenna to ferrite antenna due to the mechanical tolerances of the ferrite cores. During the assembly of the second Ferrite core must therefore be a change of Distance between the first ferrite core and the second ferrite core possible be. The second ferrite core is therefore freely displaceable on the holding means. This leads the assembly of the ferrite core known from the cited document Ferrite antenna to do that after tuning the antenna and before setting the second ferrite core unintentionally shifting of the second ferrite core possible is. Is it coincidental and unintentionally causing a displacement of the second ferrite core After voting, changed The frequency response of the antenna and the ferrite antenna can only limited useful or even unusable.
Hier setzt die vorliegende Erfindung an.Here uses the present invention.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Ferritantenne vorzuschlagen, bei der der zweite Ferritkern, nach dem Abstimmen der Ferritantenne und vor dem Festlegen des zweiten Kerns so angebracht ist, dass der zweite Ferritkern möglichst nicht oder nur erschwert verschiebbar ist.Of the The present invention is based on the object, a ferrite antenna to propose, at the second ferrite core, after tuning the ferrite antenna and before fixing the second core so attached is that the second ferrite core possible or not difficult is displaceable.
VORTEILE DER ERFINDUNGADVANTAGES OF INVENTION
Diese Aufgabe wird durch eine erfindungsgemäße Ferritantenne nach Anspruch 1 gelöst. Eine solche Ferritantenne weist an dem Haltemittel vorgesehene federnde Halteelemente auf, mit dem zumindest der zweite Ferritkern vor dem dauerhaften Festlegen fixierbar ist.These The object is achieved by a ferrite antenna according to the invention 1 solved. Such a ferrite antenna has provided on the holding means resilient Holding elements, with at least the second ferrite core in front of the permanent fixing is fixable.
Während der erste Ferritkern weiterhin unmittelbar durch Kleben an dem Haltemittel angebracht werden kann, ist es bei einer erfindungsgemäßen Ferritantenne möglich, dass der zweite Ferritkern in einer durch die Halteelemente zumindest in einer ersten Richtung festgelegten Position an dem Haltemittel festgehalten ist. Nach der Abstimmung der Antenne, wozu der zweite Ferritkern in eine zweite Richtung, senkrecht zur ersten Richtung verschiebbar ist, kann dann der zweite Ferritkern festgeklebt werden. Lediglich die Position bezüglich der zweiten Richtung wird durch das Verschieben des zweiten Ferritkerns beim Abstimmen eingestellt.During the first ferrite core continues immediately by gluing to the holding means can be attached, it is in a ferrite antenna according to the invention possible, that the second ferrite core in at least by the holding elements in a first direction fixed position on the holding means is held. After tuning the antenna, why the second Ferrite core in a second direction, perpendicular to the first direction is displaceable, then the second ferrite core can be glued. Only the position regarding the second direction is achieved by shifting the second ferrite core set during tuning.
Vorzugsweise ist der erste Ferritkern von einer Spule umwickelt.Preferably is the first ferrite core wrapped by a coil.
Die federnden Halteelemente sind vorzugsweise einstückig mit dem übrigen Haltemittel verbunden. Geeigneter Weise kann das Haltemittel ein Kunststoffspritzgussteil sein.The resilient retaining elements are preferably integral with the rest holding means connected. Suitably, the holding means may be a plastic injection molded part be.
ZEICHNUNGENDRAWINGS
Ein Ausführungsbeispiel für eine erfindungsgemäße Antenne ist anhand der Zeichnung näher beschrieben. Darin zeigtOne embodiment for one antenna according to the invention is described in more detail with reference to the drawing. It shows
BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDESCRIPTION THE EMBODIMENTS
Die
erfindungsgemäße Ferritantenne
gemäß
Das
Haltemittel
Zur
Abstimmung der Ferritantenne müssen die
beiden Ferritkerne
Für die Montage
der Ferritkerne
Unterhalb
der Federelemente
Claims (8)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004046371A DE102004046371A1 (en) | 2004-09-24 | 2004-09-24 | Holding device for ferrite cores and ferrite antenna with such a holding device |
AT05108696T ATE371963T1 (en) | 2004-09-24 | 2005-09-21 | HOLDING DEVICE FOR FERRITE CORE AND FERRITE ANTENNA WITH SUCH A HOLDING DEVICE |
EP05108696A EP1641073B1 (en) | 2004-09-24 | 2005-09-21 | Holding device for ferrite cores and ferrite antenna having such a holding device |
DE502005001361T DE502005001361D1 (en) | 2004-09-24 | 2005-09-21 | Holding device for ferrite cores and ferrite antenna with such a holding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004046371A DE102004046371A1 (en) | 2004-09-24 | 2004-09-24 | Holding device for ferrite cores and ferrite antenna with such a holding device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004046371A1 true DE102004046371A1 (en) | 2006-03-30 |
Family
ID=35406191
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004046371A Withdrawn DE102004046371A1 (en) | 2004-09-24 | 2004-09-24 | Holding device for ferrite cores and ferrite antenna with such a holding device |
DE502005001361T Active DE502005001361D1 (en) | 2004-09-24 | 2005-09-21 | Holding device for ferrite cores and ferrite antenna with such a holding device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502005001361T Active DE502005001361D1 (en) | 2004-09-24 | 2005-09-21 | Holding device for ferrite cores and ferrite antenna with such a holding device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1641073B1 (en) |
AT (1) | ATE371963T1 (en) |
DE (2) | DE102004046371A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018041448A1 (en) * | 2016-08-31 | 2018-03-08 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehcile door handle assembly having an antenna |
WO2018041447A1 (en) * | 2016-08-31 | 2018-03-08 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehicle door handle assembly with assembly aid |
US20200190870A1 (en) * | 2016-08-31 | 2020-06-18 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehicle door handle arrangement with sealed space for electronics |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6280898B2 (en) * | 2015-08-26 | 2018-02-14 | 株式会社東海理化電機製作所 | Antenna device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002095873A2 (en) * | 2001-05-23 | 2002-11-28 | Neosid Pemetzrieder Gmbh & Co. Kg | Ferrite antenna |
WO2004007879A1 (en) * | 2002-06-20 | 2004-01-22 | Schaffner Emv Ag | Electronic control circuit comprising a transmitter for a vehicle door locking system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3273097A (en) * | 1963-07-03 | 1966-09-13 | Philips Corp | Adjustable antenna rod and support assembly |
DE2948033A1 (en) * | 1979-11-29 | 1981-06-04 | Jauch, Heinz, Dr., 7720 Schwenningen | Antenna with two mutually inclined ferrite rods - each having coil and capacitor forming two coupling resonant circuits |
JPS63274973A (en) * | 1987-05-06 | 1988-11-11 | Ricoh Co Ltd | Eraser lighting controller for copying machine |
US5767816A (en) * | 1995-02-22 | 1998-06-16 | Minnesota Mining And Manufacturing Company | Ferrite core marker |
-
2004
- 2004-09-24 DE DE102004046371A patent/DE102004046371A1/en not_active Withdrawn
-
2005
- 2005-09-21 AT AT05108696T patent/ATE371963T1/en not_active IP Right Cessation
- 2005-09-21 EP EP05108696A patent/EP1641073B1/en not_active Not-in-force
- 2005-09-21 DE DE502005001361T patent/DE502005001361D1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002095873A2 (en) * | 2001-05-23 | 2002-11-28 | Neosid Pemetzrieder Gmbh & Co. Kg | Ferrite antenna |
WO2004007879A1 (en) * | 2002-06-20 | 2004-01-22 | Schaffner Emv Ag | Electronic control circuit comprising a transmitter for a vehicle door locking system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018041448A1 (en) * | 2016-08-31 | 2018-03-08 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehcile door handle assembly having an antenna |
WO2018041447A1 (en) * | 2016-08-31 | 2018-03-08 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehicle door handle assembly with assembly aid |
US20200190870A1 (en) * | 2016-08-31 | 2020-06-18 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehicle door handle arrangement with sealed space for electronics |
Also Published As
Publication number | Publication date |
---|---|
EP1641073A1 (en) | 2006-03-29 |
EP1641073B1 (en) | 2007-08-29 |
DE502005001361D1 (en) | 2007-10-11 |
ATE371963T1 (en) | 2007-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |