EP1634308A2 - Inductive miniature component, in particular an antenna - Google Patents

Inductive miniature component, in particular an antenna

Info

Publication number
EP1634308A2
EP1634308A2 EP04802950A EP04802950A EP1634308A2 EP 1634308 A2 EP1634308 A2 EP 1634308A2 EP 04802950 A EP04802950 A EP 04802950A EP 04802950 A EP04802950 A EP 04802950A EP 1634308 A2 EP1634308 A2 EP 1634308A2
Authority
EP
European Patent Office
Prior art keywords
winding
winding body
coil
guide elements
ferrite core
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.)
Granted
Application number
EP04802950A
Other languages
German (de)
French (fr)
Other versions
EP1634308B1 (en
Inventor
Dieter Lorenz
Olaf SCHÖN
Eugeniusz Swoboda
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.)
Neosid Pemetzrieder GmbH and Co KG
Original Assignee
Neosid Pemetzrieder GmbH and Co KG
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 Neosid Pemetzrieder GmbH and Co KG filed Critical Neosid Pemetzrieder GmbH and Co KG
Publication of EP1634308A2 publication Critical patent/EP1634308A2/en
Application granted granted Critical
Publication of EP1634308B1 publication Critical patent/EP1634308B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/027—Coils wound on non-magnetic supports, e.g. formers wound on formers for receiving several coils with perpendicular winding axes, e.g. for antennae or inductive power transfer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures

Definitions

  • the invention relates to an inductive miniature component, in particular an antenna, with a winding body designed as a flat, rectangular or polygonal component, on which three coil windings are applied such that the axes of these coil windings in the three spatial directions (X, Y, Z), wherein a first and a second coil winding are wound around the width and length of the winding body in two spatial directions perpendicular to one another in the center plane of the winding body, and the third coil winding around the circumference along the narrow side of the winding body is wound around it, the winding body having on its underside guide elements for guiding the third coil winding on one of its sides and the component having a ferrite core encompassed by the coil windings.
  • the winding body, on which the three coil windings are applied consists at least partially of femt material, which poses certain difficulties in terms of production technology. Furthermore, difficulties often arise during manufacture, since individual steps of the manufacturing process, in particular the application of the third coil winding, have to be carried out manually.
  • the invention has for its object to form an inductive miniature component, in particular an antenna, with the features described at the beginning and in the preamble of claim 1 in such a way that a less complex production is possible, which can be carried out in particular fully automatically, but in particular one ensures the secure fit of the third coil winding.
  • the winding body consists of plastic material and has within its outer surfaces a receiving surface containing guide surfaces, essentially parallel to the central plane, into which the ferrite core designed as a flat component is inserted or inserted, as in the characterizing part of the patent claim 1 specified.
  • a basic idea of the invention is to manufacture the winding body of the component entirely from plastic in such a way that it has a receiving space inside its outer surface, into which a ferrite core designed as a flat component is inserted fully automatically from above or inserted from the side. Subsequently, the three coil windings are also automatically applied to the winding body. In this case, the third coil winding is held in a secure fit by the guide elements arranged on the winding former, which form receiving pockets through which the turns of the third coil winding are passed. The guide elements are arranged in the corner areas of the winding body, so that the third coil winding is guided particularly securely in these areas.
  • the miniature inductive component according to the invention can be produced quickly and inexpensively on appropriately equipped machines.
  • Figure 1 seen in a first embodiment of the winding body of a miniature component only partially wound with two windings from below.
  • FIG. 2 the winding body according to FIG. 1, partially wound with three windings, in a view of the narrow side;
  • FIG. 3 shows the winding body according to FIGS. 1 and 2 in a view from above;
  • Fig. 4 is a section along the line A-B in Fig. 3;
  • Fig. 5 is a section along the line C-D in Fig. 3;
  • Fig. 6 in a representation analogous to Fig. 1 shows a variant of the winding body in the unwound state
  • FIG. 7 u. 8 the winding body according to FIG. 6 in each case in a view of the narrow side;
  • FIGS. 6 to 8 shows the winding body according to FIGS. 6 to 8 in a view from above;
  • Figure 10 is a section along the line A'-B 'in Fig. 9.
  • FIG. 11 shows a section along the line C'-D 'in FIG. 9;
  • FIG. 13 shows the winding body according to FIG. 12 in the partially wound state in a view of the narrow side
  • FIG. 14 shows the winding body in the unwound state in a representation analogous to FIG. 12; Fig. 15 in a representation analogous to Fig. 13 the winding body in the unwound state.
  • the winding body 1 shown in FIGS. 1 to 5 in the only partially wound state is designed as an octagonal, flat component in its outer contours and is intended for the construction of an isotropic antenna by applying three coil windings on it in such a way that the axes of these coil windings into the three directions X, Y and Z, each oriented perpendicular to one another. These spatial directions X, Y and Z are indicated in the drawings.
  • the coil windings are applied to the winding body 1 in such a way that a first coil winding 2X and a second coil winding 2Y in two directions of the width and length of the winding body 1 which are perpendicular to one another and parallel to the central plane of the winding body 1
  • Winding body are wound around this and the third coil winding 2Z along the narrow side of the winding body 1 is wound around its circumference following this.
  • guide elements 3.1 to 3.4 and 4.1 to 4.4 are arranged, which extend beyond the circumference of the winding body and extend parallel to a central plane of the winding body and lie on both sides of the winding course of the third coil winding 2Z
  • connection tabs 6.1 to 6.4 are arranged for connecting the ends of the coil windings and for connecting the component to the conductor tracks of a circuit board, not shown.
  • the winding body 1 consists of plastic material and has within its outer surfaces a receiving space 5, delimited by guide surfaces 7.1, 7.2, 7.3, essentially parallel to the central plane and opening towards the top of the winding body 1, into which a ferrite core formed as a flat component is inserted from above can be. This insertion of the Ferrite core happens before the three coil windings are applied to the winding body 1.
  • the receiving space 5 has the inner contour of a regular octagon. Accordingly, the ferrite core to be inserted in it has the outer shape of a regular octagon.
  • the ferrite core can be fixed in the receiving space by gluing.
  • 6 to 11 show a variant of the winding body according to FIGS. 1 to 5 in the unwound state.
  • the main differences lie in a somewhat different design of the guide elements for the third coil winding and the connection elements to which the ends of the coil windings are connected.
  • 6 to 11 the parts corresponding to the details of the winding body according to FIGS. 1 and 5 are given the same reference numerals, which are provided with an apostrophe. A detailed description of the winding body according to FIGS. 6 to 11 does not appear to be necessary.
  • the receiving space opens to the underside of the winding body or to one of the narrow sides.
  • the ferrite core is then pushed into the receiving space from one of the narrow sides.
  • the winding body 11 is in turn designed as a flat, essentially octagonal component on which three coil windings are applied such that the axes of these coil windings 12X, 12Y, 12Z in turn point in the three spatial directions X, Y and Z, each oriented perpendicular to one another.
  • the coil windings 12X, 12Y, 12Z are applied in the same way as in the embodiments described above.
  • the circumference of the winding body projecting parallel to a central plane of the winding body is current and on both sides of the winding course of the third coil winding 12Z arranged guide elements, of which the guide elements 13.1 to 13.4 lying on the underside of the winding body 11 are visible in FIGS. 12 and 14, while those on the top of the winding body 11 lying guide elements only the guide elements 14.1 and 14.2 are visible in FIGS. 13 and 15.
  • the guide elements on the upper side and on the lower side in turn lie opposite one another in such a way that they form receiving pockets in which the turns of the third coil winding 12Z run.
  • the ends of coil windings are wound around extensions of the guide elements 13.2 and 13.4 arranged on the underside and soldered there, so that connection elements 16.2 and 16.4 are formed for connecting the component to the conductor tracks of a circuit board (not shown).
  • the winding body 11 has a receiving space 15 which is delimited by guide surfaces 17 and runs essentially parallel to the central plane and opens towards a narrow side of the winding body 11, into which a ferrite core 18 designed as a flat component is inserted.
  • the ferrite core 18 is inserted before the three coil windings are applied to the winding body 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Details Of Aerials (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The invention relates to an inductive miniature component, in particular to an antenna. Said component comprises a winding body (1) that is configured as a flat element, on which three coil windings (2X, 2Y, 2Z) are mounted in such a way that the axes of the coil windings point in three spatial directions (X, Y, Z). The winding body (1) consists of a plastic material and contains a receiving chamber (5) inside its external surfaces, into which a ferrite core, which is configured as a flat element is introduced or inserted, said chamber having guide surfaces (7.1 to 7.3) and running essentially parallel to the central plane. To guide the third coil winding (2Z), the winding body (1) can be equipped with guide elements (3.1, 3.4; 4.1, 4.4) on its upper and lower faces in the corner regions, said elements forming pockets with a U-shaped cross-section, in which the coils of the third coil winding (2Z) are housed. The guide elements (3.1, 3.4) on the lower face of the winding body (1) can be provided with contact elements (6.1, 6.4), to which the ends of the coil windings are connected.

Description

Induktives Miniatur-Bauelement, insbesondere Antenne Miniature inductive component, in particular antenna
Die Erfindung betrifft ein induktives Miniatur-Bauelement, insbesondere eine Antenne, mit einem als flaches rechteckiges oder vieleckiges Bauteil ausgebildeten Wickelkörper, auf eichen drei Spulenwicklungen derart aufgebracht sind, ass die Achsen dieser Spulenwicklungen in die drei jeweils senkrecht zueinander ausgerichteten Raumrichtungen (X, Y, Z) weisen, wobei eine erste und eine zweite Spulenwicklung in zwei senkrecht zueinander in der Mittel- ebene des Wickelkörpers Hegende Raumrichtungen der Breite und der Länge des Wickelkörpers um diesen herumgewickelt sind und die dritte Spulenwick- lung entlang der Schmalseite des Wickelkörpers seinem Umfang folgend um diesen herumgewickelt ist, wobei der Wickelkörper an seiner Unterseite Führungselemente zur Führung der dritten Spulenwicklung an einer ihrer Seiten aufweist und das Bauelement einen von den Spulenwicklungen umfassten Ferritkern besitzt.The invention relates to an inductive miniature component, in particular an antenna, with a winding body designed as a flat, rectangular or polygonal component, on which three coil windings are applied such that the axes of these coil windings in the three spatial directions (X, Y, Z), wherein a first and a second coil winding are wound around the width and length of the winding body in two spatial directions perpendicular to one another in the center plane of the winding body, and the third coil winding around the circumference along the narrow side of the winding body is wound around it, the winding body having on its underside guide elements for guiding the third coil winding on one of its sides and the component having a ferrite core encompassed by the coil windings.
Derartige Bauelemente sind grundsätzlich bekannt.Such components are generally known.
Bei bisher bekannten Bauelementen dieser Art besteht der Wickelkörper, auf welchen die drei Spulenwicklungen aufgebracht sind, mindestens teilweise aus Femtmaterial, was herstellungstechnisch gewisse Schwierigkeiten aufwirft. Weiterhin ergeben sich bei der Herstellung oft Schwierigkeiten, indem einzelne Schritte des Herstellungsverfahrens, insbesondere das Aufbringen der dritten Spulenwicklung, von Hand durchgeführt werden müssen. Der Erfindung liegt die Aufgabe zugrunde, ein induktives Miniatur-Bauelement, insbesondere eine Antenne, mit den eingangs und im Oberbegriff des Patentanspruchs 1 beschriebenen Merkmalen so auszubilden, dass eine wenig aufwendige Herstellung möglich ist, die insbesondere vollautomatisch durchgeführt werden kann, die aber insbesondere einen sicheren Sitz der dritten Spulenwicklung gewährleistet.In previously known components of this type, the winding body, on which the three coil windings are applied, consists at least partially of femt material, which poses certain difficulties in terms of production technology. Furthermore, difficulties often arise during manufacture, since individual steps of the manufacturing process, in particular the application of the third coil winding, have to be carried out manually. The invention has for its object to form an inductive miniature component, in particular an antenna, with the features described at the beginning and in the preamble of claim 1 in such a way that a less complex production is possible, which can be carried out in particular fully automatically, but in particular one ensures the secure fit of the third coil winding.
Die Lösung dieser Aufgabe geschieht erfindungsgemäß dadurch, dass der Wickelkörper aus Kunststoffmaterial besteht und innerhalb seiner Außenflächen einen Führungsflächen enthaltenden, im wesentlichen parallel zur Mittelebene verlaufenden Aufnahmeraum aufweist, in den der als flaches Bauteil ausgebildete Ferritkern eingesetzt oder eingeschoben ist, wie im kennzeichnenden Teil des Patentanspruchs 1 angegeben. Vorteilhafte Weiter- bildungen des erfindungsgemäßen Bauelements sind in den abhängigen Vorrichtungsansprüchen beschrieben. Verfahren zur automatischen Herstellung des erfindungsgemäßen Bauelements sind weiter unten und in den Verfahrensansprüchen 10 und 11 beschrieben.This object is achieved according to the invention in that the winding body consists of plastic material and has within its outer surfaces a receiving surface containing guide surfaces, essentially parallel to the central plane, into which the ferrite core designed as a flat component is inserted or inserted, as in the characterizing part of the patent claim 1 specified. Advantageous further developments of the component according to the invention are described in the dependent device claims. Methods for automatically producing the component according to the invention are described below and in method claims 10 and 11.
Ein Grundgedanke der Erfindung besteht darin, den Wickelkörper des Bauelements insgesamt aus Kunststoff herzustellen und zwar derart, dass er innerhalb seiner Außenflächen einen Aufhahmeraum aufweist, in den ein als flaches Bauelement ausgebildeter Ferritkern vollautomatisch von oben eingesetzt oder von der Seite eingeschoben wird. Anschließend daran werden ebenfalls automatisch die drei Spulenwicklungen auf den Wickelkörper aufgebracht. Hierbei wird die dritte Spulenwicklung durch die am Wickelkörper angeordneten Führungselemente, welche Aufnahmetaschen bilden, durch welche die Windungen der dritten Spulenwicklung hindurchgeführt werden, in einem sicheren Sitz gehalten. Die Führungselemente sind in den Eckbereichen des Wickelkörpers angeordnet, so dass die dritte Spulenwicklung in diesen Bereichen besonders sicher geführt ist.A basic idea of the invention is to manufacture the winding body of the component entirely from plastic in such a way that it has a receiving space inside its outer surface, into which a ferrite core designed as a flat component is inserted fully automatically from above or inserted from the side. Subsequently, the three coil windings are also automatically applied to the winding body. In this case, the third coil winding is held in a secure fit by the guide elements arranged on the winding former, which form receiving pockets through which the turns of the third coil winding are passed. The guide elements are arranged in the corner areas of the winding body, so that the third coil winding is guided particularly securely in these areas.
Das erfindungsgemäße induktive Miniatur-Bauelement lässt sich rasch und wenig aufwendig auf entsprechend ausgestatteten Automaten herstellen.The miniature inductive component according to the invention can be produced quickly and inexpensively on appropriately equipped machines.
Im folgenden wird anhand er beigefügten Zeichnungen ein Ausführungsbeispiel für ein induktives Miniatur-Bauelement nach der Erfindung näher erläutert. In den Zeichnungen zeigen:An exemplary embodiment of an inductive miniature component according to the invention is explained in more detail below with reference to the accompanying drawings. The drawings show:
Fig. 1 in einer ersten Ausführungsform den nur teilweise mit zwei Wicklungen bewickelten Wickelkörper eines Miniatur-Bauelements von unten gesehen;Figure 1 seen in a first embodiment of the winding body of a miniature component only partially wound with two windings from below.
Fig. 2 den teilweise mit drei Wicklungen bewickelten Wickelkörper nach Fig. 1 in einer Ansicht auf die Schmalseite;FIG. 2 the winding body according to FIG. 1, partially wound with three windings, in a view of the narrow side;
Fig. 3. den Wickelkörper nach Fig. 1 und 2 in einer Ansicht von oben;3 shows the winding body according to FIGS. 1 and 2 in a view from above;
Fig. 4 einen Schnitt nach der Linie A-B in Fig. 3;Fig. 4 is a section along the line A-B in Fig. 3;
Fig. 5 einen Schnitt nach der Linie C-D in Fig. 3;Fig. 5 is a section along the line C-D in Fig. 3;
Fig. 6 in einer Darstellung analog Fig. 1 eine Variante des Wickelkörpers im unbewickelten Zustand;Fig. 6 in a representation analogous to Fig. 1 shows a variant of the winding body in the unwound state;
Fig. 7 u. 8 den Wickelkörper nach Fig. 6 jeweils in einer Ansicht auf die Schmalseite;Fig. 7 u. 8 the winding body according to FIG. 6 in each case in a view of the narrow side;
Fig. 9 den Wickelkörper nach Fig. 6 bis 8 in einer Ansicht von oben;9 shows the winding body according to FIGS. 6 to 8 in a view from above;
Fig. 10 einen Schnitt nach der Linie A'-B' in Fig. 9;Figure 10 is a section along the line A'-B 'in Fig. 9.
Fig. 11 einen Schnitt nach der Linie C'-D' in Fig. 9;11 shows a section along the line C'-D 'in FIG. 9;
Fig. 12 in einer zweiten Ausführungsform den mit drei Wicklungen bewickelten Wickelkörper eines Miniatur-Bauelements von unten gesehen;12 in a second embodiment, the winding body of a miniature component wound with three windings seen from below;
Fig. 13 den Wickelkörper nach Fig. 12 im teilweise bewickelten Zustand in einer Ansicht auf die Schmalseite;13 shows the winding body according to FIG. 12 in the partially wound state in a view of the narrow side;
Fig. 14 in einer Darstellung analog Fig. 12 den Wickelkörper im unbewickelten Zustand; Fig. 15 in einer Darstellung analog Fig. 13 den Wickelkörper im unbewickelten Zustand.14 shows the winding body in the unwound state in a representation analogous to FIG. 12; Fig. 15 in a representation analogous to Fig. 13 the winding body in the unwound state.
Der in den Fig. 1 bis 5 im nur teilweise bewickelten Zustand dargestellte Wickelkörper 1 ist als in seinen Außenumrissen achteckiges, flaches Bauteil ausgebildet und zum Aufbau einer isotropen Antenne gedacht, indem auf ihn drei Spulenwicklungen derart aufgebracht werden, dass die Achsen dieser Spulenwicklungen in die drei j eweils senkrecht zueinander ausgerichteten Raumrichtungen X, Y und Z weisen. Diese Raumrichtungen X, Y und Z sind in den Zeichnungen angegeben. Die Spulenwicklungen sind so auf den Wickelkörper 1 aufgebracht, dass eine erste Spulenwicklung 2X und eine zweite Spulenwicklung 2 Y in zwei senkrecht zueinander und parallel zur Mittelebene des Wickelkörpers 1 liegenden Richtungen der Breite und der Länge desThe winding body 1 shown in FIGS. 1 to 5 in the only partially wound state is designed as an octagonal, flat component in its outer contours and is intended for the construction of an isotropic antenna by applying three coil windings on it in such a way that the axes of these coil windings into the three directions X, Y and Z, each oriented perpendicular to one another. These spatial directions X, Y and Z are indicated in the drawings. The coil windings are applied to the winding body 1 in such a way that a first coil winding 2X and a second coil winding 2Y in two directions of the width and length of the winding body 1 which are perpendicular to one another and parallel to the central plane of the winding body 1
Wickelkörpers um diesen herumgewickelt sind und die dritte Spulenwicklung 2Z entlang der Schmalseite des Wickelkörpers 1 seinem Umfang folgend um diesen herumgewickelt ist.Winding body are wound around this and the third coil winding 2Z along the narrow side of the winding body 1 is wound around its circumference following this.
In den vier Eckbereichen des Wickelkörpers 1 sind den Umfang des Wickelkörpers überragende, parallel zu einer Mittelebene des Wickelkörpers verlaufende und zu beiden Seiten des Windungsverlaufs der dritten Spulenwicklung 2Z liegende Führungselemente 3.1 bis 3.4 und 4.1 bis 4.4 angeordnet, die derart einander gegenüberliegen, dass, wie aus den Zeichnungen zu ersehen, j eweils zwei Führungselemente 3.1 und 4.1, 3.2 und 4.2, 3.3 und 4.3 sowie 3.4 und 4.4 Aufnahmetaschen mit U-förmigem Querschnitt bilden, in denen die Windungen der dritten Spulenwicklung 2Z verlaufen.In the four corner regions of the winding body 1, guide elements 3.1 to 3.4 and 4.1 to 4.4 are arranged, which extend beyond the circumference of the winding body and extend parallel to a central plane of the winding body and lie on both sides of the winding course of the third coil winding 2Z From the drawings it can be seen that each form two guide elements 3.1 and 4.1, 3.2 and 4.2, 3.3 and 4.3 as well as 3.4 and 4.4 receiving pockets with a U-shaped cross-section, in which the turns of the third coil winding 2Z run.
An den äußeren Kanten der Fünrungselemente 3.1 bis 3.4 an der Unterseite des Wickelkörpers 1 sind jeweils Anschlussfahnen 6.1 bis 6.4 angeordnet zum Anschluss der Enden der Spulenwicklungen und zum Anschluss des Bauelements an die Leiterbahnen einer nicht dargestellten Leiterplatte.On the outer edges of the guide elements 3.1 to 3.4 on the underside of the winding body 1, connection tabs 6.1 to 6.4 are arranged for connecting the ends of the coil windings and for connecting the component to the conductor tracks of a circuit board, not shown.
Der Wickelkörper 1 besteht aus Kunststoffmaterial und besitzt innerhalb seiner Außenflächen einen von Führungsflächen 7.1, 7.2, 7.3 begrenzten, im wesentlichen parallel zur Mittelebene verlaufenden, sich zur Oberseite des Wickelkörpers 1 hin öffnenden Aufnahmeraum 5, in den ein als flaches Bauteil ausgebildeter Ferritkern von oben eingesetzt werden kann. Dieses Einsetzen des Ferritkerns geschieht, bevor die drei Spulenwicklungen auf den Wickelkörper 1 aufgebracht werden.The winding body 1 consists of plastic material and has within its outer surfaces a receiving space 5, delimited by guide surfaces 7.1, 7.2, 7.3, essentially parallel to the central plane and opening towards the top of the winding body 1, into which a ferrite core formed as a flat component is inserted from above can be. This insertion of the Ferrite core happens before the three coil windings are applied to the winding body 1.
Im dargestellten Ausführungsbeispiel besitzt der Aufnahmeraum 5 die Innenkontur eines regelmäßigen Achtecks. Dementsprechend besitzt der in ihn einzusetzende Ferritkern die Außenform eines regelmäßigen Achtecks. Der Ferritkern kann durch Verkleben im Aufnahmeraum fixiert sein.In the exemplary embodiment shown, the receiving space 5 has the inner contour of a regular octagon. Accordingly, the ferrite core to be inserted in it has the outer shape of a regular octagon. The ferrite core can be fixed in the receiving space by gluing.
Die Fig. 6 bis 11 zeigen eine Variante des Wickelkörpers nach Fig. 1 bis 5 im unbewickelten Zustand. Die wesentlichen Unterschiede bestehen in einer etwas anderen Ausgestaltung der Führungselemente für die dritte Spulenwicklung sowie der Anschlusselemente, an welche die Enden der Spulenwicklungen an- geschlossen sind. In den Fig. 6 bis 11 sind die den Einzelheiten des Wickelkörpers nach Fig. 1 und 5 entsprechenden Teile mit den gleichen Bezugsziffern bezeichnet, die mit einem Apostrophstrich versehen sind. Eine ausführliche Beschreibung des Wickelkörpers nach Fig. 6 bis 11 erscheint nicht erforderlich.6 to 11 show a variant of the winding body according to FIGS. 1 to 5 in the unwound state. The main differences lie in a somewhat different design of the guide elements for the third coil winding and the connection elements to which the ends of the coil windings are connected. 6 to 11, the parts corresponding to the details of the winding body according to FIGS. 1 and 5 are given the same reference numerals, which are provided with an apostrophe. A detailed description of the winding body according to FIGS. 6 to 11 does not appear to be necessary.
Selbstverständlich sind auch Ausfuhrungsformen möglich, bei denen sich der Aufnahmeraum zur Unterseite des Wickelkörpers oder zu einer der Schmalseiten hin öffnet. Im letzteren Fall wird der Ferritkern dann von einer der Schmalseiten her in den Aufnahmeraum eingeschoben.Of course, embodiments are also possible in which the receiving space opens to the underside of the winding body or to one of the narrow sides. In the latter case, the ferrite core is then pushed into the receiving space from one of the narrow sides.
In den Fig. 12 bis 15 ist im bewickelten und unbewickelten Zustand eine zweite Ausfuhrungsform eines Wickelkörpers dargestellt.12 to 15, a second embodiment of a winding body is shown in the wound and unwound state.
Der Wickelkörper 11 ist wiederum als flaches, im wesentlichen achteckiges Bauteil ausgebildet, auf den drei Spulenwicklungen derart aufgebracht sind, dass wiederum die Achsen dieser Spulenwicklungen 12X, 12Y, 12Z in die drei jeweils senkrecht zueinander ausgerichteten Raumrichtungen X, Y und Z weisen. Die Spulenwicklungen 12X, 12Y, 12Z sind in der gleichen Weise aufgebracht wie bei den oben beschriebenen Ausfuhrungsformen.The winding body 11 is in turn designed as a flat, essentially octagonal component on which three coil windings are applied such that the axes of these coil windings 12X, 12Y, 12Z in turn point in the three spatial directions X, Y and Z, each oriented perpendicular to one another. The coil windings 12X, 12Y, 12Z are applied in the same way as in the embodiments described above.
In den vier Eckbereichen des Wickelkörpers 11 sind den Umfang des Wickelkörpers überragende, parallel zu einer Mittelebene des Wickelkörpers ver- laufende und zu beiden Seiten des Windungsverlaufs der dritten Spulenwicklung 12Z liegende Führungselemente angeordnet, von denen die an der Unter- seite des Wickelkörpers 11 liegenden Führungselemente 13.1 bis 13.4 in den Fig. 12 und 14 sichtbar sind, während von den an der Oberseite des Wickelkörpers 11 liegenden Führungselementen nur die Führungselemente 14.1 und 14.2 in den Fig. 13 und 15 sichtbar sind. Die Führungselemente an der Oberseite und an der Unterseite liegen wiederum derart einander gegenüber, dass sie Aufnahmetaschen bilden, in denen die Windungen der dritten Spulenwicklung 12Z verlaufen. Um Fortsätze der an der Unterseite angeordneten Führungselemente 13.2 und 13.4 sind jeweils die Enden von Spulenwicklungen herumgewickelt und dort verlötet, so dass Anschlusselemente 16.2 bzw. 16.4 gebildet werden zum Anschluss des Bauelements an die Leiterbahnen einer nicht darge- stellten Leiterplatte .In the four corner regions of the winding body 11, the circumference of the winding body projecting parallel to a central plane of the winding body is current and on both sides of the winding course of the third coil winding 12Z arranged guide elements, of which the guide elements 13.1 to 13.4 lying on the underside of the winding body 11 are visible in FIGS. 12 and 14, while those on the top of the winding body 11 lying guide elements only the guide elements 14.1 and 14.2 are visible in FIGS. 13 and 15. The guide elements on the upper side and on the lower side in turn lie opposite one another in such a way that they form receiving pockets in which the turns of the third coil winding 12Z run. The ends of coil windings are wound around extensions of the guide elements 13.2 and 13.4 arranged on the underside and soldered there, so that connection elements 16.2 and 16.4 are formed for connecting the component to the conductor tracks of a circuit board (not shown).
Innerhalb seiner Außenflächen besitzt der Wickelkörper 11 einen von Führungsflächen 17 begrenzten, im wesentlichen parallel zur Mittelebene verlaufenden, sich zu einer Schmalseite des Wickelkörpers 11 hin öffnenden Auf- nahmeraum 15, in den ein als flaches Bauteil ausgebildeter Ferritkern 18 eingeschoben ist. Das Einschieben des Ferritkerns 18 geschieht, bevor die drei Spulenwicklungen auf den Wickelkörper 11 aufgebracht werden.Within its outer surfaces, the winding body 11 has a receiving space 15 which is delimited by guide surfaces 17 and runs essentially parallel to the central plane and opens towards a narrow side of the winding body 11, into which a ferrite core 18 designed as a flat component is inserted. The ferrite core 18 is inserted before the three coil windings are applied to the winding body 11.
Im folgenden werden Verfahren beschrieben, nach denen ein induktives Miniatur-Bauelement, wie anhand der Fig. 1 bis 5 bzw. Fig. 12 bis 15 beschrieben, auf einem entsprechend ausgestatteten Fertigungsautomaten hergestellt werden kann.In the following, methods are described according to which an inductive miniature component, as described with reference to FIGS. 1 to 5 or FIGS. 12 to 15, can be produced on an appropriately equipped production machine.
Im Fall eines Bauelements nach Fig. 1 bis 5 laufen folgende Verfahrensschritte automatisch ab:In the case of a component according to FIGS. 1 to 5, the following method steps run automatically:
a) Herstellen eines Wickelkörpers aus Kunststoffmaterial mit einem Aufnahmeraum für einen Ferritkern und mit einstückig angeordneten Führungselementen an der Oberseite und an der Unterseite;a) Manufacture of a winding body made of plastic material with a receiving space for a ferrite core and with integrally arranged guide elements on the top and on the bottom;
b) Bereitstellen eines als flaches Bauteil ausgebildeten Ferritkerns; c) Einsetzen des Ferritkerns von oben in den Aufnahmeraum des Wickelkörpers;b) providing a ferrite core designed as a flat component; c) inserting the ferrite core from above into the receiving space of the winding body;
d) Wickeln einer ersten und zweiten Spulenwicklung auf den Wickelkörper in zwei senkrecht zueinander in der Mittelebene des Wickelkörpers liegenden Richtungen;d) winding a first and a second coil winding on the winding body in two directions lying perpendicular to each other in the central plane of the winding body;
e) Wickeln einer dritten Spulenwicklung entlang der Schmalseite des Wickelkörpers in den Raum zwischen den Führungselementen der Oberseite und den Führungselementen der Unterseite;e) winding a third coil winding along the narrow side of the winding body into the space between the guide elements on the top side and the guide elements on the bottom side;
f) Verbinden der Wicklungsenden der drei Spulenwicklungen mit Kontakt- elementen an der Unterseite des Wickelkörpers durch Löten;f) connecting the winding ends of the three coil windings to contact elements on the underside of the winding body by soldering;
g) Abfuhren des Bauelements zum Messen und Verpacken.g) removal of the component for measurement and packaging.
Im Fall eines Bauelements nach Fig. 12 bis 15 laufen folgende Verfahrensschritte automatisch ab:In the case of a component according to FIGS. 12 to 15, the following process steps take place automatically:
a) Herstellen eines Wickelkörpers aus Kunststoffmaterial mit einem Aufnahmeraum für einen Ferritkern und mit einstückig angeordneten Führungselementen an der Oberseite und an der Unterseite;a) Manufacture of a winding body made of plastic material with a receiving space for a ferrite core and with integrally arranged guide elements on the top and on the bottom;
b) Bereitstellen eines als flaches Bauteil ausgebildeten Ferritkerns;b) providing a ferrite core designed as a flat component;
c) Einschieben des Ferritkerns von der Schmalseite her in den Aufnahme- räum des Wickelkörpers;c) inserting the ferrite core from the narrow side into the receiving space of the winding former;
d) Wickeln einer ersten und zweiten Spulenwicklung auf den Wickelkörper in zwei senkrecht zueinander in der Mittelebene des Wickelkörpers liegenden Richtungen; e) Wickeln einer dritten Spulenwicklung entlang der Schmalseite des Wickelkörpers in den Raum zwischen den Führungselementen der Oberseite und den Führungselementen der Unterseite;d) winding a first and a second coil winding on the winding body in two directions lying perpendicular to each other in the central plane of the winding body; e) winding a third coil winding along the narrow side of the winding body into the space between the guide elements on the upper side and the guide elements on the lower side;
f) Wickeln der Wicklungsenden der drei Spulenwicklungen um Vorsprünge der Führungselemente an der Unterseite des Wickelkörpers und Verlöten der Enden;f) winding the winding ends of the three coil windings around projections of the guide elements on the underside of the winding body and soldering the ends;
g) Abführen des Bauelements zum Messen und Verpacken. g) removal of the component for measurement and packaging.

Claims

Patentansprüche claims
1. Induktives Miniatur-Bauelement, insbesondere Antenne, mit einem als flaches rechteckiges oder vieleckiges Bauteil ausgebildeten Wickelkörper, aufweichen drei Spulenwicklungen derart aufgebracht sind, dass die Achsen dieser Spulenwicklungen in die drei jeweils senkrecht zueinander ausgerichteten Raumrichtungen (X, Y, Z) weisen, wobei eine erste und eine zweite Spulenwicklung in zwei senkrecht zueinander in der Mittelebene des Wickelkörpers liegenden Raumrichtungen der Breite und der Länge des Wickelkörpers um diesen herumgewickelt sind und die dritte Spulenwicklung entlang der Schmalseite des Wickelkörpers seinem Umfang folgend um diesen herumgewickelt ist, wobei der Wickelkörper an seiner Unterseite Führungselemente zur Führung der dritten Spulenwicklung an einer ihrer Seiten aufweist und das Bauelement einen von den Spulenwicklungen um- fassten Ferritkern besitzt, dadurch gekennzeichnet, dass der Wickelkörper (1, 11) aus Kunststoffmaterial besteht und innerhalb seiner Außenflächen einen Führungsflächen (7.1 bis 7.3, 17) enthaltenden, im wesentlichen parallel zur Mittelebene verlaufenden Aufnalimeraum (5, 15) aufweist, in den der als flaches Bauteil ausgebildete Ferritkern (18) eingesetzt oder eingeschoben ist.1.Inductive miniature component, in particular antenna, with a winding body designed as a flat, rectangular or polygonal component, to which three coil windings are applied such that the axes of these coil windings point in the three spatial directions (X, Y, Z) which are oriented perpendicular to one another, wherein a first and a second coil winding are wound around the width and length of the winding body in two spatial directions lying perpendicular to each other in the central plane of the winding body, and the third coil winding is wound around the circumference of the winding body along the narrow side thereof, the winding body on its underside has guide elements for guiding the third coil winding on one of its sides and the component has a ferrite core encompassed by the coil windings, characterized in that the winding body (1, 11) consists of plastic material and inside it has a guide surface (7.1 to 7.3, 17) containing an essentially parallel to the central plane Aufnalimeraum (5, 15), into which the ferrite core (18) formed as a flat component is inserted or inserted.
2. Miniatur-Bauelement nach Anspruch 1, dadurch gekennzeichnet, dass der Wickelkörper (1, 11) einen vieleckigen Außenumriss aufweist und in vier Eckbereichen an der Oberseite und der Unterseite des Wickelkörpers (1, 18) den Umfang des Wickelkörpers überragende, parallel zur Mittelebene des Wickelkörpers verlaufende, jeweils zu beiden Seiten des Windungsverlaufs der dritten Spulenwicklung (2Z) liegende Führungselemente (3.1 bis 3.4, 4.1 bis 4.4, 13.1 bis 13.4, 14.1, 14.2) angeordnet sind.2. Miniature component according to claim 1, characterized in that the winding body (1, 11) has a polygonal outer contour and in four corner areas on the top and bottom of the winding body (1, 18) the circumference of the winding body, parallel to the central plane guiding elements (3.1 to 3.4, 4.1 to 4.4, 13.1 to 13.4, 14.1, 14.2), which run on both sides of the winding course of the third coil winding (2Z), are arranged on the winding body.
3. Miniatur-Bauelement nach Anspruch 2, dadurch gekennzeichnet, dass die Führungselemente (3.1 bis 3.4, 4.1 bis 4.4, 13.1 bis 13.4, 14.1, 14.2) an der Oberseite und der Unterseite des Wickelkörpers (1, 11) jeweils derart einander gegenüberliegen, dass sie Aufnahmetaschen mit U-formigem Querschnitt bilden, in denen die Windungen der dritten Spulenwicklung (2Z) verlaufen. 3. Miniature component according to claim 2, characterized in that the guide elements (3.1 to 3.4, 4.1 to 4.4, 13.1 to 13.4, 14.1, 14.2) on the upper side and the lower side of the winding body (1, 11) are in each case opposite one another, that they form receiving pockets with a U-shaped cross section, in which the turns of the third coil winding (2Z) run.
4. Miniatur-Bauelement nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass an den Führungselementen (3.1 bis 3.4) der Unterseite des Wickelkörpers (1) jeweils Kontaktelemente (6.1 bis 6.4) angeordnet sind, an welche die Wicklungsenden der Spulenwicklungen angeschlossen sind.4. Miniature component according to claim 2 or 3, characterized in that on the guide elements (3.1 to 3.4) of the underside of the winding body (1) each contact elements (6.1 to 6.4) are arranged, to which the winding ends of the coil windings are connected.
5. Miniatur-Bauelement nach Anspruch 4, dadurch gekennzeichnet, dass die Kontaktelemente (6.1 bis 6.4) als Kontaktfüße ausgebildet sind, mit denen das Bauelement auf eine Leiterplatte aufsetzbar und mit den Leiterbahnen der Leiterplatte verbindbar ist.5. Miniature component according to claim 4, characterized in that the contact elements (6.1 to 6.4) are designed as contact feet with which the component can be placed on a circuit board and connected to the conductor tracks of the circuit board.
6. Miniatur-Bauelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sich der Aufnahmeraum (5) zur Oberseite des Wickelkörpers (1) hin öffnet.6. Miniature component according to one of claims 1 to 5, characterized in that the receiving space (5) opens towards the top of the winding body (1).
7. Miniatur-Bauelement nach Anspruch 6, dadurch gekennzeichnet, dass der Aufnahmeraum (5) die Innenkontur eines regelmäßigen Achtecks aufweist.7. Miniature component according to claim 6, characterized in that the receiving space (5) has the inner contour of a regular octagon.
8. Miniatur-Bauelement nach einem der Ansprüche 1 bis 5, dadurch gekenn- zeichnet, dass sich der Aufnahmeraum zur Unterseite des Wickelkörpers hin öffnet.8. Miniature component according to one of claims 1 to 5, characterized in that the receiving space opens towards the underside of the winding body.
9. Miniatur-Bauelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sich der Aufnahmeraum (15) zu einer der Schmalseiten des Wickelkörpers (11) hin öffnet.9. Miniature component according to one of claims 1 to 5, characterized in that the receiving space (15) opens to one of the narrow sides of the winding body (11).
10. Verfahren zur Herstellung eines Miniatur-Bauelements nach einem der Ansprüche 1 bis 7, gekennzeichnet durch folgende automatisch ablaufende Verfahrensschritte: a) Herstellen eines Wickelkörpers aus Kunststoffmaterial mit einem Aufnahmeraum für einen Ferritkern und mit einstückig angeordneten Führungselementen an der Oberseite und an der Unterseite; b) Bereitstellen eines als flaches Bauteil ausgebildeten Ferritkerns; c) Einsetzen des Ferritkerns von oben in den Aufnahmeraum des Wickelkörpers; d) Wickeln einer ersten und zweiten Spulenwicklung auf den Wickelkörper in zwei senkrecht zueinander in der Mittelebene des Wickelkörpers liegenden Richtungen; e) Wickeln einer dritten Spulenwicklung entlang der Schmalseite des Wickelkörpers in den Raum zwischen den Führungselementen der Oberseite und den Führungselementen der Unterseite; f) Verbinden der Wicklungsenden der drei Spulenwicklungen mit Kontaktelementen an der Unterseite des Wickelkörpers durch Verlöten; g) Abfuhren des Bauelements zum Messen und Verpacken.10. A method for producing a miniature component according to one of claims 1 to 7, characterized by the following automatically running method steps: a) producing a winding body made of plastic material with a receiving space for a ferrite core and with integrally arranged guide elements on the top and on the bottom; b) providing a ferrite core designed as a flat component; c) inserting the ferrite core from above into the receiving space of the winding body; d) winding a first and a second coil winding on the winding body in two directions lying perpendicular to each other in the central plane of the winding body; e) winding a third coil winding along the narrow side of the winding body into the space between the guide elements on the upper side and the guide elements on the lower side; f) connecting the winding ends of the three coil windings to contact elements on the underside of the winding body by soldering; g) removal of the component for measurement and packaging.
11. Verfahren zur Herstellung eines Miniatur-Bauelements nach einem der Ansprüche 1 bis 5 und 9, gekennzeichnet durch folgende automatisch ablaufende Verfahrensschritte: a) Herstellen eines Wickelkörpers aus Kunststoffmaterial mit einem Aufhahmeraum für einen Ferritkern und mit einstückig angeordneten Führungselementen an der Oberseite und an der Unterseite; b) Bereitstellen eines als flaches Bauteil ausgebildeten Ferritkerns; c) Einschieben des Ferritkerns von der Schmalseite her in den Aufhahmeraum des Wickel körpers; d) Wickeln einer ersten und zweiten Spulenwicklung auf den Wickelkörper in zwei senkrecht zueinander in der Mittelebene des Wickel- körpers liegenden Richtungen; e) Wickeln einer dritten Spulenwicklung entlang der Schmalseite des Wickelkörpers in den Raum zwischen den Führungselementen der Oberseite und den Führungselementen der Unterseite;11. The method for producing a miniature component according to one of claims 1 to 5 and 9, characterized by the following automatically running process steps: a) producing a winding body made of plastic material with a receiving space for a ferrite core and with integrally arranged guide elements on the top and on the Bottom; b) providing a ferrite core designed as a flat component; c) inserting the ferrite core from the narrow side into the receiving space of the winding body; d) winding a first and a second coil winding onto the winding body in two directions lying perpendicular to each other in the central plane of the winding body; e) winding a third coil winding along the narrow side of the winding body into the space between the guide elements on the upper side and the guide elements on the lower side;
f) Wickeln der Wicklungsenden der Spulenwicklungen um Vorsprünge der Führungselemente an der Unterseite des Wickelkörpers und Verlöten der Enden;f) winding the winding ends of the coil windings around projections of the guide elements on the underside of the winding body and soldering the ends;
g) Abfuhren des Bauelements zum Messen und Verpacken. g) removal of the component for measurement and packaging.
EP04802950A 2003-12-24 2004-12-17 Inductive miniature component, in particular an antenna Not-in-force EP1634308B1 (en)

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DE10361233A DE10361233A1 (en) 2003-12-24 2003-12-24 Inductive miniature component, in particular antenna
PCT/DE2004/002763 WO2005062316A2 (en) 2003-12-24 2004-12-17 Inductive miniature component, in particular an antenna

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