JP2004304461A - Vehicle-mounted antenna - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a vehicle-mounted antenna capable of improving workability by facilitating the connection of the antenna signals of the signal output and the vehicle harnesses of the antenna amplifier power supply, and simplifying a wiring layout of the harnesses inside the antenna. <P>SOLUTION: The antenna is provided with an antenna case of an on-vehicle antenna 10 which consists of an antenna base 12 and a cover 11 and is fixed on a vehicle body panel 13, a printed circuit board 21 which is incorporated inside the antenna case to constitute an antenna element 17 and an antenna output circuit, and a high-frequency connector 25 which is mounted on this printed circuit board and used for antenna signal output and a circuit driving power source output. This high-frequency connector is made to face an antenna bottom side from an opening hole 26 provided on one part of the antenna base, and this connector can be connected to a vehicle side connector 27 via a connection opening 13b formed on the vehicle body panel. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle-mounted antenna, and more particularly to an antenna output structure for a vehicle body of the antenna device.
[0002]
[Prior art]
This type of in-vehicle antenna is provided, for example, on a roof panel of a vehicle, and includes one or two of an AM / FM radio antenna, a telephone antenna, a GPS receiving antenna, and the like. It is incorporated and configured to function as an antenna.
[0003]
In this type of in-vehicle antenna, a base plate forming an antenna case is provided with a boss portion that is fitted into an opening formed in a roof panel, and a nut is attached to the boss portion from the inside of the vehicle. (See, for example, Patent Document 1).
[0004]
[Patent Document 1]
JP-A-2002-76732 [0005]
[Problems to be solved by the invention]
By the way, in this kind of in-vehicle antenna, the boss portion also functions as a portion for drawing out the harness from inside the antenna case. That is, the in-vehicle antenna is fixed by fitting a boss provided at a lower portion of the antenna into a mounting hole provided in the roof panel and tightening the nut from the opposite side. Here, before this fixation, the harness on the antenna output side is drawn out of the antenna case through the inside of the boss portion.
[0006]
A connection connector is provided at the tip of such a harness, and the connection connector is connected to a connector provided on a harness on the vehicle side in a state where the connection connector is pulled into the vehicle, thereby performing connection with the antenna side. I was
[0007]
However, in such a structure, the antenna is mounted on the mounting hole portion of the roof panel, the harness from the antenna side is drawn in through the mounting hole, and then the connector is connected to the harness on the vehicle side inside the vehicle. It is necessary, the workability is poor, and the cost of parts is increased, which is a problem in terms of cost.
[0008]
In particular, during this operation, the operator must first wire both the antenna side harness and the vehicle side harness behind the roof panel of the vehicle, and must use both hands to connect the connector. Therefore, in such a wiring work of the harness, not only the workability is deteriorated, but also it is necessary to incorporate the harness into both, and the cost is high.
[0009]
The present invention has been made in view of such circumstances, and enables an antenna signal output unit, that is, an antenna signal and an antenna amplifier power supply to be easily connected to a vehicle-side harness, and furthermore, wiring of the harness inside the antenna. It is an object of the present invention to obtain an in-vehicle antenna capable of simplifying a layout and improving workability.
[0010]
[Means for Solving the Problems]
In order to meet such an object, an in-vehicle antenna according to the present invention (the invention according to claim 1) is an in-vehicle antenna fixed on a vehicle body panel, wherein the in-vehicle antenna includes an antenna base and a cover combined therewith. A printed circuit board incorporated in the antenna case to form an antenna element and an antenna output circuit; and a high-frequency connector mounted on the printed circuit board. The high-frequency connector is provided on a part of the antenna base. From the opening hole to the bottom side, and can be connected to a connector on the vehicle side via a connection opening formed in the vehicle body panel.
[0011]
An on-vehicle antenna according to the present invention (invention of claim 2) is characterized in that, in the on-vehicle antenna according to claim 1, the high-frequency connector is used for outputting an antenna signal and for outputting a circuit driving power supply. I do.
[0012]
ADVANTAGE OF THE INVENTION According to this invention, since the connector of an antenna case side becomes a harness-less, it is possible to connect the connector of the vehicle-side harness directly to the antenna side by one-touch, improve work efficiency, and improve the connector of the antenna side. Harnessless reduces the number of parts on the antenna side, simplifies assembly work, and reduces costs. Furthermore, the number of harnesses in the antenna case can be reduced, and interference with other harnesses on the vehicle side during assembly to the vehicle is eliminated, making it less susceptible to noise performance from other parts on the vehicle side. Antenna performance becomes easier.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 3 show an embodiment of a vehicle-mounted antenna according to the present invention.
In these figures, reference numeral 10 denotes an in-vehicle antenna. The in-vehicle antenna 10 includes a resin cover 11 having a substantially truncated pyramid shape with one flat side and a hollow inside, and a lower portion of the cover 11. Is provided with a mount base 12 formed by die casting or the like so as to close the opening end of the antenna, thereby forming an outer case of the vehicle-mounted antenna 10.
[0014]
Reference numeral 14 denotes a plate-like packing provided on the bottom surface side of the mount base 12 and interposed between the mount base 12 and a roof panel 13 of a vehicle (not shown). A concave portion 11a is formed at the upper end of the cover 11, and a radio rod antenna described later is rotatably incorporated in the concave portion 11a.
[0015]
Here, as is clear from FIGS. 1 and 3, the on-vehicle antenna 10 is configured as a composite antenna in which a GPS receiving antenna 17 and an AM / PM radio rod antenna 18 are integrated. .
[0016]
A printed circuit board 21 for forming each antenna circuit is arranged on the mount base 12 at a predetermined interval at a portion covered by the resin cover 11 on the mount base 12.
The GPS receiving antenna 17 is mounted on the printed circuit board 21. Further, the radio rod antenna 18 is provided on the outer side of the case in a swingable manner by assembling the rotation shaft 18a in a concave portion 11a formed in the upper end of the resin cover 11 in a concave shape.
[0017]
Here, reference numeral 22 in FIG. 1 denotes a boss portion protruding from the lower surface of the mount base 12 and inserted into a mounting hole 13a provided in a roof panel of the vehicle. The boss portion 22 is inserted into the mounting hole 13a, and a nut is provided. The antenna case can be mounted and fixed on the roof panel 13 by tightening from the inside of the vehicle body at 23.
[0018]
According to the present invention, in the in-vehicle antenna 10 having the above-described configuration, the high-frequency connector 25 directly mounted on the printed circuit board 21 is provided in a part of the antenna case. The connector is provided so as to face the bottom side from an opening hole 26 provided in the portion and to be connectable to a connector 27 provided at a tip of a vehicle-side harness 28 through a connection opening 13b formed in the roof panel 13. .
[0019]
Here, the high-frequency connector 25 is directly mounted on the board 21 and is used for connecting an antenna signal output from an antenna output circuit and an output of a circuit driving power supply. Although not shown in detail, the high-frequency connector 25 has, for example, an earth plate, and the earth plate serves as a plate for fixing to the antenna base 12 and is fastened to the mount base 12 (die-cast). , And plays a role of fixing and vehicle body grounding.
[0020]
According to such a configuration, it is possible to easily connect the antenna signal output unit, that is, the antenna signal and the power supply for driving the circuit such as the antenna amplifier to the vehicle body side harness 28, and furthermore, the wiring layout of the harness inside the antenna 10. Can be simplified and workability can be improved.
[0021]
That is, conventionally, the harness of the antenna signal output and the harness of the circuit driving power supply are drawn out of the antenna case, so that when connecting the harness cables to the roof panel 13 of the vehicle body, complicated connection and wiring layout are complicated. However, according to the present invention, since the connector on the antenna case side is harnessless, the connector 27 of the vehicle-side harness 28 can be directly connected to the connector 25 on the antenna 10 by one-touch connection. Efficiency can be improved. In addition, since the connector 25 for the output on the antenna side does not have a harness, the cost of the antenna 10 can be reduced.
[0022]
In addition, the harness in the antenna case can be reduced, and interference with other harnesses on the vehicle side during assembly to the vehicle is eliminated, making it less susceptible to noise performance from other parts on the vehicle side. The original antenna performance of the antenna 10 is easily obtained.
[0023]
Also, by using the high frequency connector 25 directly mounted on the antenna side as an antenna signal output, and also as an output of a power supply for driving an antenna circuit (for example, an antenna amplifier), a conventional connection is made with another component. , The number of parts as a whole can be reduced and cost can be reduced.
[0024]
Note that the present invention is not limited to the structure described in the above embodiment, and it goes without saying that the shape, structure, and the like of each part of the vehicle-mounted antenna 10 can be appropriately modified and changed. For example, in the above-described embodiment, a case has been described in which the present invention is applied to a composite type vehicle-mounted antenna in which an AM / FM radio antenna, a telephone antenna, a GPS receiving antenna, and the like are appropriately incorporated. It is not limited to this.
[0025]
Further, in the above-described embodiment, the case where the on-vehicle antenna 10 is mounted on the roof panel 13 of the vehicle has been described.
[0026]
Furthermore, in the above-described embodiment, the connection end of the high-frequency connector 25 is configured to be exposed to the antenna bottom through the opening 26 of the antenna base 12. May be configured so that the connector connection with the connector can be easily performed.
[0027]
【The invention's effect】
As described above, according to the in-vehicle antenna according to the present invention, since the connector on the antenna case side is harnessless, the connector of the harness on the vehicle side can be directly connected to the antenna side with one touch, and the work efficiency can be improved. In addition, there is an excellent effect that the number of parts on the antenna side can be reduced, the assembling work can be simplified, and the cost can be reduced by eliminating the harness of the connector on the antenna side.
[0028]
Further, according to the present invention, it is possible to reduce the harness in the antenna case, eliminate interference with other harnesses on the vehicle side when assembling to the vehicle, and reduce the influence of noise performance from other parts on the vehicle side. There is also an advantage that the antenna performance is reduced and the original antenna performance is easily obtained.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an on-vehicle antenna according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the vehicle-mounted antenna of FIG. 1;
FIG. 3 is a side sectional view of the on-vehicle antenna shown in FIGS. 1 and 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... In-vehicle antenna 11 ... Resin cover 12 ... Mount base 13 ... Roof panel (body panel)
13b Connection opening 14 Plate-like packing 17 GPS receiving antenna 18 Radio rod antenna 21 Printed circuit board 22 Boss 23 Nut 25 High-frequency connector 26 Opening hole 27 Vehicle-side connector 28 Vehicle Side harness

Claims (2)

In the in-vehicle antenna fixed on the body panel,
An antenna case consisting of an antenna base and a cover combined with this,
A printed circuit board incorporated in the antenna case and constituting an antenna element and an antenna output circuit;
A high-frequency connector mounted on the printed circuit board,
The high-frequency connector faces the bottom side from an opening hole provided in a part of the antenna base, and is configured to be connectable to a connector on the vehicle side through a connection opening formed in a vehicle body panel. Car antenna. The in-vehicle antenna according to claim 1,
The high-frequency connector is used for connecting an antenna signal output and an output of a circuit driving power supply.

Images