EP3235057A1 - Water-tight lte antenna having pu potting - Google Patents

Water-tight lte antenna having pu potting

Info

Publication number
EP3235057A1
EP3235057A1 EP15810734.2A EP15810734A EP3235057A1 EP 3235057 A1 EP3235057 A1 EP 3235057A1 EP 15810734 A EP15810734 A EP 15810734A EP 3235057 A1 EP3235057 A1 EP 3235057A1
Authority
EP
European Patent Office
Prior art keywords
antenna
shell
potting compound
plastic half
connector
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
EP15810734.2A
Other languages
German (de)
French (fr)
Other versions
EP3235057B1 (en
Inventor
David Silva
Rainer Schiemann
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.)
Hirschmann Car Communication GmbH
Original Assignee
Hirschmann Car Communication GmbH
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 Hirschmann Car Communication GmbH filed Critical Hirschmann Car Communication GmbH
Publication of EP3235057A1 publication Critical patent/EP3235057A1/en
Application granted granted Critical
Publication of EP3235057B1 publication Critical patent/EP3235057B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material

Definitions

  • the invention relates to an antenna for a vehicle, comprising a carrier, in particular a printed circuit board, wherein on the support antenna structures for transmitting and / or receiving high frequency signals are arranged and wherein the antenna has a connector for connection to an electronic device, according to the features of Preamble of claim 1.
  • Waterproof housings for example two housing parts which are connected to one another via a seal, are complicated in terms of production, assembly and therefore usually very cost-intensive.
  • the invention is therefore the object of developing a generic known antenna to the effect that it is easy to manufacture, is inexpensive and has the required tightness.
  • the antenna has a plastic half-shell with a peripheral frame into which the carrier is inserted, wherein the plastic half-shell is filled with a potting compound.
  • the plastic half shell with the peripheral frame can be produced simply and cost-effectively, for example in a plastic injection molding process. This is especially true for high volumes.
  • the carrier for example, the circuit board with the antenna structures thereon for transmitting and / or receiving high-frequency Signals are used within the peripheral frame in the plastic half shell and set in their desired position.
  • the filling of the plastic half-shell with the potting compound whereby at least one top of the carrier, preferably both sides and also the edges, are surrounded by the potting compound.
  • the volume of the plastic half-shell which is to be filled with the potting compound is known (optionally taking into account the carrier, the fastening means and the connector pointing into the interior of the plastic half-shell), a predeterminable potting compound can be introduced into the plastic half-shell and harden there, so that the required waterproofness and, concomitantly, a mechanical protection of the sensitive antenna structures is realized.
  • the volume of the potting compound is selected so that the potting compound can not flow off over the upper edge of the surrounding frame, but closes with it at most or even slightly below it.
  • the carrier in particular the printed circuit board, not only completely advantageously surrounded by potting compound with the antenna structures, but the antenna has due to the presence of the plastic half-shell with the encircling frame also the required stability for outdoor use in the automobile on.
  • the carrier in particular the printed circuit board, fixed by fastening means on the plastic half-shell.
  • These attachment means may be, for example, latching hooks which cooperate with spacers on the surface of the Kunststoffhaibschaie to fix the flat support, in particular the circuit board, at a small distance above the surface of Kunststoffhaibschaie, so that thereby formed gap with the potting compound to achieve waterproofness can be completed.
  • fasteners such as rivets, screws or simple spacers, which are arranged between the carrier and plastic half-shell and then surrounded with potting compound, conceivable.
  • the plastic half shell forms a connector housing of the connector.
  • the Kunststoffhaibschaie a mounting foot.
  • the mounting base is designed so that the antenna can be arranged and fastened to it at the desired installation location.
  • the antenna in particular the mounting foot, is connected to a holder, in particular an angle holder.
  • the antenna can be arranged and fixed at their installation. If the mounting foot and the holder are separate components, there is the advantage that a uniform mounting foot of the antenna is used, which interacts with different holders, in particular different angle holders, in order to be able to accommodate different installation geometries.
  • the mounting foot is connected to the holder, in particular the angle holder, via at least one strut.
  • the antenna can be arranged approximately at right angles to the mounting surface, where it is arranged and fixed, which arrangement obtains the required stability by the at least one strut, preferably two struts, which is particularly advantageous in outdoor automobile use.
  • the connector is a FAKRA connector. This is a standard connector available for automotive use, so that the antenna can be used universally in an advantageous manner and can be connected to the electronic device.
  • the potting compound is a potting compound based on PU or epoxy or silicone-based.
  • various variants of the potting compound are available, depending on the materials used (in particular the material of the carrier and the material of the plastic half-shell) the conditions of use (for example, the interior or exterior of the vehicle) of the handling during casting and also with regard to Costs can be selected.
  • the potting compound is a PU-based potting compound (polyurethane-based), since with such a potting compound the watertightness is available at comparatively low cost and very good handleability during potting.
  • FIGS. 1 to 3 show an antenna 1 which has a plastic half-shell 2, wherein the plastic half-shell 2 has a peripheral frame 3 in particular at its outer edge.
  • the antenna 1 is formed depending on the antenna structures used, antenna elements or the like for transmitting and / or receiving high-frequency signals.
  • the frequency ranges and services (such as telephone, Internet, GPS, WLAN and so on) are freely selectable.
  • LTE frequencies Long Term Evolution
  • the antenna is used in the outer area of the vehicle and the waterproofness plays an important role.
  • FIGS. 1 to 3 an unrecognizable carrier with antenna structures has already been inserted into the plastic half-shell 2 and the volume within the plastic half-shell 2 has been filled to a maximum with the edge of the surrounding frame 3 with a potting compound 4.
  • a connector 5 in particular a FAKRA connector, is projecting outwardly from the antenna 1 to supply the signals received by the antenna 1 via a corresponding mating connector and a cable to an electronic device, not shown. The same thing in the event that high-frequency signals are to be emitted via the antenna 1 via an electronic device.
  • the antenna 1 To attach the antenna 1 at its installation this has a mounting base 6, wherein in a particularly advantageous manner, the plastic half-shell 2 with its frame 3, the connector 5 (more precisely its connector housing) and the ontagefuß 6 form an integral component. While the mounting base 6 can be designed so that by means of it the antenna 1 can be arranged and fixed at its installation location, an angle holder 7 is shown in an alternative embodiment, which is attached to the mounting foot 6. If the angle holder 7 (or in general a different holder, which need not necessarily be angular) of a metallic material, it can optionally be used for a ground connection or shielding of the antenna 1.
  • FIG. 4 shows the antenna 1 before the potting compound 4 has been poured into the plastic sheath 2.
  • a carrier in particular a printed circuit board 8
  • spacers are provided on the surface of the plastic half-shell 2 pointing in the direction of the printed circuit board 8, so that over the intermediate region between the outer edge of the printed circuit board 8 and the inner region of the frame 3, the potting compound 4 in this intermediate region between the surface Printed circuit board 8 and surface of the plastic half-shell 2 can penetrate.
  • the circuit board 8 » as shown in Figure 4 and at least one hole, in particular also have a plurality of holes, so that the potting compound 4 can pour into the flat intermediate region between plastic half-shell 2 and circuit board 8. This is particularly necessary when the outer edge of the circuit board 8 completely or almost completely on the frame
  • the fastening means 9 is designed here as a screw which is passed through a hole in the printed circuit board 8 and engages in a thread which is located on the plastic half-shell 2. Also in this case, between the bottom of the circuit board 8, which is directed towards the plastic half-shell 2, and the surface of the plastic half-shell 2, which is directed toward the bottom of the circuit board 8, at least one spacer to be present to the circuit board. 8 to keep in distance to the plastic half-shell 2. While the connector housing is a part of Kunststoffhaibschaie 2, the inner conductor of the connector 5 is directed toward a solder 10 on the circuit board 8.
  • the inner conductor of the connector 5 is soldered to the soldering parts 10 on the circuit board 8 to an electrical connection between the connector 5 and the unspecified and not produce antenna structures shown on the circuit board 8.
  • the region of the solder joint 10 can also be referred to as antenna base point of the antenna 1.
  • 11 is still a strut, which is part of the plastic half-shell 2 in this case.
  • two struts 11 arranged parallel to one another are present, which interact with the holder, in particular the angle holder 7.
  • the at least one strut 11 is configured such that the holder, in particular the angle holder 7, on the plastic half-shell 2 is fixed over it. This can be done for example via a spring-groove system between the holder and strut, so that the holder is pushed over the at least one strut 11, preferably the two struts 11, in the direction of the plastic half-shell 2 and brought to a stop, whereby he is set at the same time.
  • This can be permanently supported by corresponding locking means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

The invention relates to an antenna (1) for a vehicle, comprising a carrier, in particular a circuit board (8), wherein antenna structures for transmitting and/or receiving high-frequency signals are arranged on the carrier, and wherein the antenna (1) has a plug connector (5) for connecting to an electronic device, characterized in that the antenna (1) has a plastic half-shell (2) having a peripheral frame (3), into which plastic half-shell the carrier is inserted, wherein the plastic half-shell (2) is filled up with a potting mass (4).

Description

B E S C H R E I B U N G  DESCRIPTION
Wasserdichte LTE-Antenne mit PU-Verguss Waterproof LTE antenna with PU casting
Die Erfindung betrifft eine Antenne für ein Fahrzeug, aufweisend einen Träger, insbesondere eine Leiterplatte, wobei auf dem Träger Antennenstrukturen zum Senden und/oder Empfangen hochfrequenter Signale angeordnet sind und wobei die Antenne einen Steckverbinder zum Anschluss an ein elektronisches Gerät aufweist, gemäß den Merkmalen des Oberbegriffes des Patentanspruches 1. The invention relates to an antenna for a vehicle, comprising a carrier, in particular a printed circuit board, wherein on the support antenna structures for transmitting and / or receiving high frequency signals are arranged and wherein the antenna has a connector for connection to an electronic device, according to the features of Preamble of claim 1.
Für den Automobileinsatz von Antennen im Außenbereich des Fahrzeuges werden wasserdichte Produkte benötigt. Wasserdichte Gehäuse, zum Beispiel zwei Gehäuseteile, die über eine Dichtung miteinander verbunden sind, sind aufwändig in der Hersteilung, der Montage und daher in der Regel sehr kostenintensiv. For the automotive use of antennas in the exterior of the vehicle waterproof products are needed. Waterproof housings, for example two housing parts which are connected to one another via a seal, are complicated in terms of production, assembly and therefore usually very cost-intensive.
Der Erfindung liegt daher die Aufgabe zugrunde, eine gattungsgemäße bekannte Antenne dahingehend weiterzubilden, dass sie einfach herstellbar ist, kostengünstig ist und die erforderliche Dichtheit aufweist. The invention is therefore the object of developing a generic known antenna to the effect that it is easy to manufacture, is inexpensive and has the required tightness.
Diese Aufgabe ist durch die Merkmale des Patentanspruches 1 gelöst. This object is solved by the features of claim 1.
Erfindungsgemäß ist vorgesehen, dass die Antenne eine Kunststoffhalbschale mit einem umlaufenden Rahmen aufweist, in die der Träger eingesetzt ist, wobei die Kunststoffhalbschale mit einer Vergussmasse ausgefüllt ist. Die Kunststoffhalbschale mit dem umlaufenden Rahmen kann einfach und kostengünstig, zum Beispiel in einem Kunststoffspritzgussverfahren, hergestellt werden. Dies gilt insbesondere für hohe Stückzahlen. Nach der Herstellung der Kunststoffhaibschaie mit dem umlaufenden Rahmen kann der Träger, zum Beispiel die Leiterplatte mit den darauf befindlichen Antennenstrukturen zum Senden und/oder Empfangen hochfrequenter Signale, innerhalb des umlaufenden Rahmens in die Kunststoffhalbschale eingesetzt werden und in ihrer Sollposition festgelegt werden. Anschließend erfolgt das Ausfüllen der Kunststoffhalbschale mit der Vergussmasse, wodurch zumindest die eine Oberseite des Trägers, vorzugsweise beide Seiten und auch die Ränder, von der Vergussmasse umgeben werden. Da das Volumen der Kunststoffhalbschale, das mit der Vergussmasse ausgefüllt werden soll, bekannt ist (gegebenenfalls unter Berücksichtigung des Trägers, der Befestigungsmittel und des in das Innere der Kunststoffhalbschale weisenden Steckverbinders), kann ein vorgebbares an Vergussmasse in die Kunststoffhalbschale eingefüllt werden und dort aushärten, sodass die erforderliche Wasserdichtheit und damit einhergehend auch ein mechanischer Schutz der empfindlichen Antennenstrukturen realisiert ist. Das Volumen der Vergussmasse ist so gewählt, dass die Vergussmasse nicht über den oberen Rand des umlaufenden Rahmens abfließen kann, sondern maximal oder auch geringfügig darunter mit diesem abschließt. Nach der vorstehend beschriebenen Herstellung der Antenne ist der Träger, insbesondere die Leiterplatte, mit den Antennenstrukturen nicht nur in vorteilhafter Weise vollständig von Vergussmasse umgeben, sondern die Antenne weist aufgrund des Vorhandenseins der Kunststoffhalbschale mit dem umlaufenden Rahmen auch die erforderliche Stabilität für den Automobileinsatz im Außenbereich auf. According to the invention it is provided that the antenna has a plastic half-shell with a peripheral frame into which the carrier is inserted, wherein the plastic half-shell is filled with a potting compound. The plastic half shell with the peripheral frame can be produced simply and cost-effectively, for example in a plastic injection molding process. This is especially true for high volumes. After the production of the Kunststoffhaibschaie with the encircling frame, the carrier, for example, the circuit board with the antenna structures thereon for transmitting and / or receiving high-frequency Signals are used within the peripheral frame in the plastic half shell and set in their desired position. Subsequently, the filling of the plastic half-shell with the potting compound, whereby at least one top of the carrier, preferably both sides and also the edges, are surrounded by the potting compound. Since the volume of the plastic half-shell which is to be filled with the potting compound is known (optionally taking into account the carrier, the fastening means and the connector pointing into the interior of the plastic half-shell), a predeterminable potting compound can be introduced into the plastic half-shell and harden there, so that the required waterproofness and, concomitantly, a mechanical protection of the sensitive antenna structures is realized. The volume of the potting compound is selected so that the potting compound can not flow off over the upper edge of the surrounding frame, but closes with it at most or even slightly below it. After the above-described production of the antenna, the carrier, in particular the printed circuit board, not only completely advantageously surrounded by potting compound with the antenna structures, but the antenna has due to the presence of the plastic half-shell with the encircling frame also the required stability for outdoor use in the automobile on.
In Weiterbildung der Erfindung ist der Träger, insbesondere die Leiterplatte, über Befestigungsmittel an der Kunststoffhalbschale festgelegt. Diese Befestigungsmittel können zum Beispiel Rasthaken sein, die mit Abstandshaltern auf der Oberfläche der Kunststoffhaibschaie zusammenwirken, um den flächigen Träger, insbesondere die Leiterplatte, auf geringer Distanz oberhalb der Oberfläche der Kunststoffhaibschaie zu fixieren, damit dieser dadurch gebildete Zwischenraum mit der Vergussmasse zur Erzielung der Wasserdichtheit ausgefüllt werden kann. Selbstverständlich sind auch andere Arten von Befestigungsmitteln, wie zum Beispiel Nieten, Schrauben oder einfache Abstandshalter, die zwischen Träger und Kunststoffhalbschale angeordnet und anschließend auch mit Vergussmasse umgeben werden, denkbar. In Weiterbildung der Erfindung bildet die Kunststoffhalbschale ein Steckverbindergehäuse des Steckverbinders. Dies hat den Vorteil, dass mit Hersteilung der Kunststoffhalbschale, insbesondere in einem Kunststoffgussverfahren oder in einem Kunststoffspritzgussverfahren, das Steckverbindergehäuse des Steckverbinders direkt schon mit hergestellt wird. Die separate Herstellung eines Steckverbindergehäuses, welches an der Kunststoffhalbschale angeordnet werden kann, entfällt dadurch in vorteilhafter Weise, ist jedoch gleichwohl auch als Alternative noch möglich. In a further development of the invention, the carrier, in particular the printed circuit board, fixed by fastening means on the plastic half-shell. These attachment means may be, for example, latching hooks which cooperate with spacers on the surface of the Kunststoffhaibschaie to fix the flat support, in particular the circuit board, at a small distance above the surface of Kunststoffhaibschaie, so that thereby formed gap with the potting compound to achieve waterproofness can be completed. Of course, other types of fasteners, such as rivets, screws or simple spacers, which are arranged between the carrier and plastic half-shell and then surrounded with potting compound, conceivable. In a further development of the invention, the plastic half shell forms a connector housing of the connector. This has the advantage that with Hersteilung the plastic half-shell, especially in a plastic casting process or in a plastic injection molding process, the connector housing of the connector is already made directly with. The separate production of a connector housing, which can be arranged on the plastic half-shell, thereby eliminating advantageously, but is still possible as an alternative.
In Weiterbildung der Erfindung weist die Kunststoffhaibschaie einen Montagefuß auf. Der Montagefuß ist so ausgestaltet, dass über ihn die Antenne an dem gewünschten Einbauort angeordnet und befestigt werden kann. In a further development of the invention, the Kunststoffhaibschaie a mounting foot. The mounting base is designed so that the antenna can be arranged and fastened to it at the desired installation location.
In Ergänzung oder Alternativ zu dem Montagefuß der Kunststoffhalbschale ist es denkbar, dass die Antenne, insbesondere der Montagefuß, mit einem Halter, insbesondere einem Winkelhalter, verbunden ist. Entweder nur alleine über den Montagefuß oder nur alleine über den Halter oder durch gemeinsamen Einsatz von Montagefuß und Halter kann die Antenne an ihrem Einbauort angeordnet und festgelegt werden. Sind der Montagefuß und der Halter getrennte Bauteile, besteht der Vorteil, dass ein einheitlicher Montagefuß der Antenne zur Anwendung kommt, der mit unterschiedlichen Haltern, insbesondere unterschiedlichen Winkelhaltern, zusammenwirkt, um unterschiedlichen Einbaugeometrien Rechnung tragen zu können. In addition to or as an alternative to the mounting base of the plastic half shell, it is conceivable that the antenna, in particular the mounting foot, is connected to a holder, in particular an angle holder. Either only alone on the mounting base or only alone on the holder or by joint use of mounting bracket and holder, the antenna can be arranged and fixed at their installation. If the mounting foot and the holder are separate components, there is the advantage that a uniform mounting foot of the antenna is used, which interacts with different holders, in particular different angle holders, in order to be able to accommodate different installation geometries.
In Weiterbildung der Erfindung ist der Montagefuß über zumindest eine Strebe mit dem Halter, insbesondere dem Winkelhaiter, verbunden. Dadurch kann die Antenne in etwa rechtwinklig zu der Montagefläche, wo sie angeordnet und festgelegt wird, angeordnet werden, wobei diese Anordnung durch die zumindest eine Strebe, vorzugsweise zwei Streben, die erforderliche Stabilität erhält, die besonders beim Automobileinsatz im Außenbereich von Vorteil ist. in Weiterbildung der Erfindung ist der Steckverbinder ein FAKRA-Steckverbinder. Damit steht für den Automobileinsatz ein genormter Steckverbinder zur Verfügung, sodass die Antenne in vorteilhafter Weise universell eingesetzt werden und an das elektronische Gerät angeschlossen werden kann. In a development of the invention, the mounting foot is connected to the holder, in particular the angle holder, via at least one strut. Thereby, the antenna can be arranged approximately at right angles to the mounting surface, where it is arranged and fixed, which arrangement obtains the required stability by the at least one strut, preferably two struts, which is particularly advantageous in outdoor automobile use. In a further development of the invention, the connector is a FAKRA connector. This is a standard connector available for automotive use, so that the antenna can be used universally in an advantageous manner and can be connected to the electronic device.
In Weiterbildung der Erfindung ist die Vergussmasse eine Vergussmasse auf PU- Basis oder Epoxid-Basis oder Silikon-Basis. Damit stehen verschiedene Varianten für die Vergussmasse zur Verfügung, die in Abhängigkeit der verwendeten Materialien (insbesondere des Materials des Trägers sowie des Materials der Kunststoffhalbschale) der Einsatzbedingungen (zum Beispiel Innen- oder Außenbereich des Fahrzeuges) der Handhabbarkeit beim Vergießen und auch im Hinblick auf die Kosten ausgewählt werden können. Von besonderem Vorteil ist es, wenn die Vergussmasse eine Vergussmasse auf PU-Basis (Polyurethan-Basis) ist, da sich mit einer solchen Vergussmasse die Wasserdichtheit bei vergleichsweise niedrigen Kosten und sehr guter Handhabbarkeit beim Vergießen zur Verfügung steht. In development of the invention, the potting compound is a potting compound based on PU or epoxy or silicone-based. Thus, various variants of the potting compound are available, depending on the materials used (in particular the material of the carrier and the material of the plastic half-shell) the conditions of use (for example, the interior or exterior of the vehicle) of the handling during casting and also with regard to Costs can be selected. It is particularly advantageous if the potting compound is a PU-based potting compound (polyurethane-based), since with such a potting compound the watertightness is available at comparatively low cost and very good handleability during potting.
Ein Ausführungsbeispiel einer erfindungsgemäßen Antenne ist im Folgenden beschrieben und anhand der Figuren erläutert. An embodiment of an antenna according to the invention is described below and explained with reference to the figures.
Die Figuren 1 bis 3 zeigen, soweit im Einzelnen dargestellt, eine Antenne 1, die eine Kunststoffhalbschale 2 aufweist, wobei die Kunststoffhalbschale 2 insbesondere an ihrem äußeren Rand einen umlaufenden Rahmen 3 aufweist. As far as shown in detail, FIGS. 1 to 3 show an antenna 1 which has a plastic half-shell 2, wherein the plastic half-shell 2 has a peripheral frame 3 in particular at its outer edge.
Die Antenne 1 ist abhängig von den verwendeten Antennenstrukturen, Antennenelementen oder dergleichen zum Senden und/oder Empfangen hochfrequenter Signale ausgebildet. Die Frequenzbereiche und Dienste (wie zum Beispiel Telefon, Internet, GPS, WLAN und so weiter) sind dabei frei wählbar. Von besonderem Vorteil ist die Anwendung bei LTE-Frequenzen (Long Term Evolution), da hierbei die Antenne im Außenbereich des Fahrzeuges zum Einsatz kommt und dabei die Wasserdichtheit eine wichtige Rolle spielt. In den Figuren 1 bis 3 ist schon ein nicht mehr erkennbarer Träger mit Antennenstrukturen in die Kunststoffhalbschale 2 eingelegt worden und das Volumen innerhalb der Kunststoffhalbschale 2 bis maximal auf Höhe des Randes der umlaufenden Rahmens 3 mit einer Vergussmasse 4 ausgefüllt worden. Das Ausfüllen der Kunststoffhalbschale 2 mit der Vergussmasse 4 erfolgt bis maximal an den oberen Rand des umlaufenden Rahmens 3 und kann aber auch bis unterhalb des Rahmens 3 erfolgen. Ein Steckverbinder 5, insbesondere ein FAKRA- Steckverbinder, ist nach außen von der Antenne 1 abstehend vorhanden, um die mit der Antenne 1 empfangenen Signale über einen entsprechenden Gegensteckverbinder und ein Kabel einem nicht näher dargestellten elektronischen Gerät zuzuführen. Gleiches für den Fall, dass über ein elektronisches Gerät hochfrequente Signale über die Antenne 1 abgestrahlt werden sollen. The antenna 1 is formed depending on the antenna structures used, antenna elements or the like for transmitting and / or receiving high-frequency signals. The frequency ranges and services (such as telephone, Internet, GPS, WLAN and so on) are freely selectable. Of particular advantage is the use of LTE frequencies (Long Term Evolution), since in this case the antenna is used in the outer area of the vehicle and the waterproofness plays an important role. In FIGS. 1 to 3, an unrecognizable carrier with antenna structures has already been inserted into the plastic half-shell 2 and the volume within the plastic half-shell 2 has been filled to a maximum with the edge of the surrounding frame 3 with a potting compound 4. The filling of the plastic half-shell 2 with the potting compound 4 takes place to a maximum of the upper edge of the peripheral frame 3 and can also be done below the frame 3. A connector 5, in particular a FAKRA connector, is projecting outwardly from the antenna 1 to supply the signals received by the antenna 1 via a corresponding mating connector and a cable to an electronic device, not shown. The same thing in the event that high-frequency signals are to be emitted via the antenna 1 via an electronic device.
Zur Befestigung der Antenne 1 an ihrem Einbauort weist diese einen Montagefuß 6 auf, wobei in besonders vorteilhafter Weise die Kunststoffhalbschale 2 mit ihrem Rahmen 3, der Steckverbinder 5 (genauer dessen Steckverbindergehäuse) und der ontagefuß 6 ein einstückiges Bauteil bilden. Während der Montagefuß 6 so ausgestaltet sein kann, dass mittels ihm die Antenne 1 an ihrem Einbauort angeordnet und festgelegt werden kann, ist in einer alternativen Ausgestaltung ein Winkelhalter 7 dargestellt, der an dem Montagefuß 6 befestigt ist. Besteht der Winkelhalter 7 (oder allgemein ein andersförmiger Halter, der nicht unbedingt winkelförmig sein muss) aus einem metallischen Werkstoff, kann er optional für eine Masseanbindung oder Abschirmung der Antenne 1 eingesetzt werden. To attach the antenna 1 at its installation this has a mounting base 6, wherein in a particularly advantageous manner, the plastic half-shell 2 with its frame 3, the connector 5 (more precisely its connector housing) and the ontagefuß 6 form an integral component. While the mounting base 6 can be designed so that by means of it the antenna 1 can be arranged and fixed at its installation location, an angle holder 7 is shown in an alternative embodiment, which is attached to the mounting foot 6. If the angle holder 7 (or in general a different holder, which need not necessarily be angular) of a metallic material, it can optionally be used for a ground connection or shielding of the antenna 1.
Figur 4 zeigt die Antenne 1 , bevor in die Kunststoffhaibschale 2 die Vergussmasse 4 eingegossen worden ist. Hier ist erkennbar, dass ein Träger, insbesondere eine Leiterplatte 8, innerhalb des Rahmens 3 der Kunststoffhalbschale 2 angeordnet worden ist. Es ist denkbar, dass zum Beispiel auf der in Richtung der Leiterplatte 8 weisenden Oberfläche der Kunststoffhalbschale 2 Abstandshalter vorhanden sind, sodass über den Zwischenbereich zwischen dem äußeren Rand der Leiterplatte 8 und dem inneren Bereich des Rahmens 3 die Vergussmasse 4 in diesen Zwischenbereich zwischen Oberfläche der Leiterplatte 8 und Oberfläche der Kunststoffhalbschale 2 eindringen kann. Ergänzend oder alternativ zu diesem Zwischenbereich kann die Leiterplatte 8» wie in Figur 4 gezeigt, auch zumindest ein Loch, insbesondere auch mehrere Löcher, aufweisen, sodass sich die Vergussmasse 4 in den flächigen Zwischenbereich zwischen Kunststoffhalbschale 2 und Leiterplatte 8 ergießen kann. Dies ist insbesondere dann erforderlich, wenn der äußere Rand der Leiterplatte 8 vollständig oder nahezu vollständig an dem RahmenFIG. 4 shows the antenna 1 before the potting compound 4 has been poured into the plastic sheath 2. Here it can be seen that a carrier, in particular a printed circuit board 8, has been arranged within the frame 3 of the plastic half-shell 2. It is conceivable, for example, that spacers are provided on the surface of the plastic half-shell 2 pointing in the direction of the printed circuit board 8, so that over the intermediate region between the outer edge of the printed circuit board 8 and the inner region of the frame 3, the potting compound 4 in this intermediate region between the surface Printed circuit board 8 and surface of the plastic half-shell 2 can penetrate. Complementary or alternative to this Intermediate area, the circuit board 8 » as shown in Figure 4, and at least one hole, in particular also have a plurality of holes, so that the potting compound 4 can pour into the flat intermediate region between plastic half-shell 2 and circuit board 8. This is particularly necessary when the outer edge of the circuit board 8 completely or almost completely on the frame
3 anliegt oder nur auf sehr kleiner Distanz dazu angeordnet ist. Weiterhin ist in Figur3 is applied or is arranged only at a very small distance to it. Furthermore, in FIG
4 gezeigt, dass ein Befestigungsmittel 9 vorhanden ist. Das Befestigungsmittel 9 ist hier als Schraube ausgebildet, die durch ein Loch in der Leiterplatte 8 hindurchgeführt ist und in ein Gewinde, welches sich an der Kunststoffhalbschale 2 befindet, eingreift. Auch in diesem Fall kann zwischen der Unterseite der Leiterplatte 8, die in Richtung der Kunststoff halbschale 2 gerichtet ist, und der Oberfläche der Kunststoffhalbschale 2, die in Richtung der Unterseite der Leiterplatte 8 gerichtet ist, zumindest ein Distanzhalter vorhanden sein, um die Leiterplatte 8 in Distanz zu der Kunststoffhalbschale 2 zu halten. Während das Steckverbindergehäuse ein Bestandteil der Kunststoffhaibschaie 2 ist, ist der Innenleiter des Steckverbinders 5 in Richtung einer Lötstelle 10 auf der Leiterplatte 8 gerichtet. Das bedeutet, dass dann, nachdem die Leiterplatte 8 in die Kunststoffhalbschale 2 eingesetzt worden ist, der Innenleiter des Steckverbinders 5 mit der Lötsteile 10 auf der Leiterplatte 8 verlötet wird, um eine elektrische Verbindung zwischen dem Steckverbinder 5 und den nicht näher bezeichneten und auch nicht näher gezeigten Antennenstrukturen auf der Leiterplatte 8 herzustellen. Der Bereich der Lötstelle 10 kann auch als Antennenfußpunkt der Antenne 1 bezeichnet werden. 4 shows that a fastening means 9 is present. The fastening means 9 is designed here as a screw which is passed through a hole in the printed circuit board 8 and engages in a thread which is located on the plastic half-shell 2. Also in this case, between the bottom of the circuit board 8, which is directed towards the plastic half-shell 2, and the surface of the plastic half-shell 2, which is directed toward the bottom of the circuit board 8, at least one spacer to be present to the circuit board. 8 to keep in distance to the plastic half-shell 2. While the connector housing is a part of Kunststoffhaibschaie 2, the inner conductor of the connector 5 is directed toward a solder 10 on the circuit board 8. This means that then, after the circuit board 8 has been inserted into the plastic half-shell 2, the inner conductor of the connector 5 is soldered to the soldering parts 10 on the circuit board 8 to an electrical connection between the connector 5 and the unspecified and not produce antenna structures shown on the circuit board 8. The region of the solder joint 10 can also be referred to as antenna base point of the antenna 1.
Bei dem gezeigten Ausführungsbeispiel ist mit 11 noch eine Strebe bezeichnet, die in diesem Fall Bestandteil der Kunststoffhalbschale 2 ist. Wie insbesondere in Figur 3 sehr gut erkennbar ist, sind zwei parallel zueinander angeordnete Streben 11 vorhanden, die mit dem Halter, insbesondere dem Winkelhalter 7 zusammenwirken. Es ist zum Beispiel denkbar, dass die zumindest eine Strebe 11 so ausgestaltet ist, dass über sie der Halter, insbesondere der Winkelhalter 7, an der Kunststoffhalbschale 2 festgelegt wird. Dies kann beispielsweise über ein Feder-Nut- System zwischen Halter und Strebe erfolgen, sodass der Halter über die zumindest eine Strebe 11 , vorzugsweise die beiden Streben 11 , in Richtung der Kunststoffhalbschale 2 aufgeschoben und auf Anschlag gebracht wird, wodurch er gleichzeitig festgelegt wird. Dies kann durch korrespondierende Rastmittel dauerhaft unterstützt werden. In the embodiment shown, 11 is still a strut, which is part of the plastic half-shell 2 in this case. As can be seen very clearly in particular in FIG. 3, two struts 11 arranged parallel to one another are present, which interact with the holder, in particular the angle holder 7. It is conceivable, for example, that the at least one strut 11 is configured such that the holder, in particular the angle holder 7, on the plastic half-shell 2 is fixed over it. This can be done for example via a spring-groove system between the holder and strut, so that the holder is pushed over the at least one strut 11, preferably the two struts 11, in the direction of the plastic half-shell 2 and brought to a stop, whereby he is set at the same time. This can be permanently supported by corresponding locking means.
Während in Figur 4 nur ein einziges Befestigungsmittei 9 dargestellt ist, ist es selbstverständlich denkbar, auch mehr als nur ein Befestigungsmittel 9 vorzusehen. While only a single Befestigungsmittei 9 is shown in Figure 4, it is of course conceivable to provide more than just a fastener 9.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1. Antenne 1. Antenna
2. Kunststoffhalbschale 2. Plastic half shell
3. Rahmen 3rd frame
4. Vergussmasse 4. potting compound
5. Steckverbinder5. Connector
6. Montagefuss6. Mounting foot
7. Winkelhalter7. Angle holder
8. Leiterplatte 8. PCB
9. Befestigungsmittel 9. Fasteners
10. Lötstelle 10. solder joint
11. Strebe  11. strut

Claims

P A T E N T A S P R Ü C H E Wasserdichte LTE-Antenne mit PU-Verguss PATENT APPLICATIONS Waterproof LTE antenna with PU encapsulation
1. Antenne (1) für ein Fahrzeug, aufweisend einen Träger, insbesondere eine Leiterplatte (8), wobei auf dem Träger Antennenstrukturen zum Senden und/oder Empfangen hochfrequenter Signale angeordnet sind, und wobei die Antenne (1) einen Steckverbinder (5) zum Anschluss an ein elektronisches Gerät aufweist, dadurch gekennzeichnet, dass die Antenne (1) eine Kunststoffhalbschale (2) mit einem umlaufenden Rahmen (3) aufweist, in die der Träger eingesetzt ist, wobei die Kunststoff halbschale (2) mit einer Vergussmasse (4) ausgefüllt ist. 1. Antenna (1) for a vehicle, comprising a carrier, in particular a printed circuit board (8), wherein on the carrier antenna structures for transmitting and / or receiving high-frequency signals are arranged, and wherein the antenna (1) has a connector (5) for Connection to an electronic device, characterized in that the antenna (1) has a plastic half-shell (2) with a peripheral frame (3) into which the carrier is inserted, wherein the plastic half-shell (2) with a potting compound (4) is filled.
2. Antenne (1) nach Anspruch 1 , dadurch gekennzeichnet, dass der Träger, insbesondere die Leiterplatte (8), über Befestigungsmittel (9) an der Kunststoffhaibschaie (2) festgelegt ist. 2. Antenna (1) according to claim 1, characterized in that the carrier, in particular the printed circuit board (8), via fastening means (9) on the Kunststoffhaibschaie (2) is fixed.
3. Antenne (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kunststoffhalbschale (2) ein Steckverbindergehäuse des Steckverbinders (5) bildet. 3. Antenna (1) according to claim 1 or 2, characterized in that the plastic half-shell (2) forms a connector housing of the connector (5).
4. Antenne (1) nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass Kunststoffhalbschale (2) einen Montagefuß (6) aufweist. 4. Antenna (1) according to claim 1, 2 or 3, characterized in that plastic half-shell (2) has a mounting foot (6).
5. Antenne (1) nach Anspruch 4, dadurch gekennzeichnet, dass der5. Antenna (1) according to claim 4, characterized in that the
Montagefuß (6) mit einem Halter, insbesondere einem Winkelhaiter (7), verbunden ist. Mounting foot (6) with a holder, in particular a Winkelhaiter (7) is connected.
6. Antenne (1) nach Anspruch 5, dadurch gekennzeichnet, dass der Montagefuß (6) über zumindest eine Strebe (11) mit dem Halter, insbesondere dem Winkelhalter (7), verbunden ist. 6. antenna (1) according to claim 5, characterized in that the mounting foot (6) via at least one strut (11) with the holder, in particular the angle holder (7) is connected.
7. Antenne (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Steckverbinder (5) ein FAKRA-Steckverbinder ist. 7. antenna (1) according to any one of the preceding claims, characterized in that the connector (5) is a FAKRA connector.
8. Antenne (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vergussmasse (4) eine Vergussmasse auf PU-Basis ist. 8. antenna (1) according to any one of the preceding claims, characterized in that the potting compound (4) is a potting compound based on PU.
9. Antenne (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vergussmasse (4) eine Vergussmasse auf Epoxid-Basis ist. 9. antenna (1) according to any one of the preceding claims, characterized in that the potting compound (4) is a potting compound based on epoxy.
10. Antenne (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vergussmasse (4) eine Vergussmasse auf Silikon-Basis ist. 10. antenna (1) according to any one of the preceding claims, characterized in that the potting compound (4) is a potting compound based on silicone.
EP15810734.2A 2014-12-18 2015-12-17 Water-tight lte antenna having pu potting Active EP3235057B1 (en)

Applications Claiming Priority (2)

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DE102014119059 2014-12-18
PCT/EP2015/080286 WO2016097182A1 (en) 2014-12-18 2015-12-17 Water-tight lte antenna having pu potting

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EP (1) EP3235057B1 (en)
CN (1) CN107004944A (en)
BR (1) BR112017007788B1 (en)
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JP3344066B2 (en) * 1994-03-31 2002-11-11 松下電工株式会社 Antenna unit
JP3812503B2 (en) * 2002-06-28 2006-08-23 株式会社デンソー Vehicle antenna mounting structure and vehicle antenna mounting method
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DE102015225756A1 (en) 2016-06-23
EP3235057B1 (en) 2021-03-10
CN107004944A (en) 2017-08-01
BR112017007788A2 (en) 2018-01-16
WO2016097182A1 (en) 2016-06-23
BR112017007788B1 (en) 2023-02-14

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