JP3046371B2 - Antenna device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna device mounted on an automobile and used for satellite communication and the like.

[0002]

2. Description of the Related Art In general, in an antenna device, an antenna section is disposed on a fixed section so as to be movable and adjustable in the azimuth and elevation directions. They are electrically connected via a ring mechanism. As such a slip ring mechanism,
Usually, a slip ring having about 20 to 40 stages is provided because it has a plurality of systems such as a signal system and a power system.

However, in the above antenna device, a multi-stage slip ring must be provided as a slip ring mechanism for electrically connecting the antenna unit and the transmission / reception control unit. There was a problem that the configuration would be difficult without taking up space. According to this, for example, as shown in FIG. 4, when a reflector 1 constituting an antenna unit is movably adjusted on an automobile 1 to constitute a mobile ground station, a height according to a rule such as a road traffic law is adopted. Since the installation space is restricted by the restriction, there is a problem that the mounting is very troublesome. In particular, when the vehicle is mounted on a small car, the installation space of the slip ring mechanism is a major problem.

[0004]

As described above, the conventional antenna device has a problem that an installation space for an electric system for electrically connecting the antenna unit and the transmission / reception control unit is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an antenna device which has a simple configuration and can be reduced in the installation space for an electric system.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to an antenna device having an antenna unit movably adjustable in azimuth and elevation directions, wherein a plurality of cable insertion holes are supported by the antenna unit and around a center of rotation. The provided rotating member and a fixed portion that movably supports the antenna unit are provided coaxially with the rotating member, and a plurality of cable insertion holes respectively corresponding to the plurality of cable insertion holes of the rotating member are formed. The support member, one end is connected to the antenna unit, the other end is connected to the transmission and reception control unit,
The intermediate portion is inserted into the cable insertion hole of the rotating member and the cable insertion hole of the support member, and is wound in a loop on one surface of the rotating member on the antenna section side to fix the loop portion, A plurality of cables fixed on one side of the transmission / reception control unit side of the support member, and a plurality of cables provided in the cable insertion holes of the rotation member and the support member, respectively, and movably guide the cables in conjunction with the movement of the antenna unit. A plurality of resin guide members, and a plurality of cable insertion holes provided at an intermediate portion between the rotation member and the support member, wherein a plurality of cable insertion holes are provided corresponding to the plurality of cable insertion holes of the rotation member and the support member. is a resin positioning member for positioning the intermediate portion of the cable, the antenna portion of the other side near neighbor and the resin positioning of the support member a plurality of cables And a plurality of cables regulating member for regulating the movement in the axial direction in both sides near near the member in which have configured <br/>.

[0007]

According to the above construction, the cable routed between the supporting member and the rotating member is guided by the resin guide member of the rotating member as the antenna moves, and the diameter of the loop is adjusted according to the rotating direction. Be changed. At the same time, the position of the intermediate portion of the cable is regulated by the resin positioning member,
The cable restricting member restricts axial movement of the support member and the resin positioning member in the vicinity of the cable insertion hole, thereby preventing mutual entanglement. This realizes electrical connection between the antenna unit and the transmission / reception control unit using a cable without using a slip ring mechanism.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an antenna device according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a support plate fixed at a predetermined interval to a mounting body 11 such as a roof of an automobile. The support plate has a waveguide insertion hole 10a formed substantially at the center thereof, and around the waveguide insertion hole 10a, five cables corresponding to a plurality of systems such as a power supply system and a signal system, for example, five systems. Insertion through holes (not shown in the figure for the sake of convenience in the figure) are formed at predetermined intervals (see FIG. 2). The waveguide 1 for transmission and reception is inserted into the waveguide insertion hole 10 a of the support plate 11.
2 is inserted. One end of the waveguide 12 is connected to a transmission / reception control unit (not shown) arranged in the automobile, and the other end is connected to an antenna unit (not shown) via a rotary joint 13. The rotary joint 13 is attached to a rotating body 14 on which an antenna (not shown) is provided.

The rotating body 14 is supported by the support plate 10 so as to be movable and adjustable in, for example, the azimuth (Az) direction. Then, a rotating plate 15 is attached to the rotating body 14. The rotating plate 15 has a waveguide insertion hole 15a formed substantially at the center thereof, and five cable insertion through-holes corresponding to five systems are similarly formed around the waveguide insertion hole 15a (in FIG. For convenience, not shown) is provided corresponding to the through hole of the support plate 11.

A power supply and signal cable 16 is inserted through a guide member 17 into the through hole of the support plate 11 and the through hole of the rotary plate 15. The cable 16 has one end connected to the transmission / reception control unit (not shown) and the other end connected to an antenna unit (not shown), and is wound in a loop on the antenna unit side of the rotating plate 15. Then, the loop portion is fixed to the rotating plate 15 by using a bundle band 18 called an insullock tie. The end of the cable 16 on the side of the transmission / reception control unit is fixed to one surface of the support plate 11 on the side of the transmission / reception control unit using a bundle band 18.

The guide member 17 is formed of a resin material such as fluororesin, and has an insertion hole 17a having a narrow middle portion as shown in FIG. The guide member guides the movement of the cable 16 accompanying the movement of the antenna unit (not shown) through the insertion hole 17a to protect the cable.

A disk-shaped resin positioning plate 19 is provided on the cable 16 at an intermediate portion between the support plate 11 and the rotary plate 15. The positioning plate 19 has a waveguide insertion hole 19a formed substantially at the center thereof, and a cable insertion hole 19b is formed around the waveguide insertion hole 19a through a through hole of the support plate 10 and a through hole of the rotating plate 15. It is formed corresponding to the hole (see FIG. 2). In the positioning plate 19, the waveguide 12 is inserted into the waveguide insertion hole 19a, and the intermediate portion of the cable 16 is inserted into the cable insertion hole 19b. The cable 1 having the positioning plate 19 inserted therethrough
6, the binding band 18 is attached near both surfaces thereof, and the movement in the axial direction with respect to the positioning plate 19 is restricted. A bundle band 18 is attached to the cable 16 near the antenna side of the support plate 10.
Is restricted from moving in the axial direction. The position of the positioning plate 19 may be, for example, in the case of a configuration in which five cables 16 are wired, between the rotating plate 15 and the supporting plate 10, the cable 1 at a position about 1/3 from the rotating plate side.
It has been confirmed that attachment to No. 6 has the most positioning effect.

In the above configuration, the supporting plate 10 and the rotating plate 1
The cable 16 wired between the five is guided by the guide member 17 of the rotating plate 15 with the movement of the antenna unit (not shown), and the diameter of the loop is changed according to the rotation direction. At the same time, the cable 16 is
The position of the intermediate portion is regulated, and the bundle band 18 regulates the axial movement of the support plate 10 and the resin positioning plate 19 in the vicinity of the cable insertion hole 19a. Is allowed to move.

As described above, in the antenna device, the rotating plate 15 is provided on the antenna unit side, and the supporting plate 10 is provided on the transmission / reception control unit side.
The guide member 1 is provided on the rotating plate 15 and the support plate 10.
The cable 16 is inserted through the cable 7 and the intermediate portion thereof is positioned by the positioning plate 19, and the cable 16 is wound in a loop on the antenna side of the rotary plate 15, and the loop portion is connected to the rotary plate 15. And the cable 16 is fixed at the transmission / reception control unit side of the support plate 10 and near one surface of the support plate 10 on the antenna unit side and the positioning plate 19.
In the vicinity of both sides, the movement of the cable 16 in the axial direction is restricted. According to this, the electrical connection between the movable adjustable antenna unit (not shown) and the transmission / reception control unit (not shown) can be reduced without using a slip ring mechanism as in the related art. The connection configuration can be made using a relatively small number of cables, and the installation space for the electric system can be reduced.

In the above-described embodiment, the cable 16 is fixed and regulated using the bundled band 18. However, the cable 16 is fixed and regulated without using the bundled band 18. Can be configured. Further, in the above-described embodiment, the case has been described in which the apparatus is configured to be mounted on a vehicle, but the present invention is not limited to the vehicle and can be applied. Therefore, it is needless to say that the present invention is not limited to the above-described embodiment, and that various modifications can be made without departing from the scope of the present invention.

[0017]

As described above in detail, according to the present invention, it is possible to provide an antenna device with a simplified configuration and capable of reducing the installation space for an electric system.

[Brief description of the drawings]

FIG. 1 is a diagram showing an antenna device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a part of FIG.

FIG. 3 is a view showing the guide member of FIG. 1 taken out.

FIG. 4 is a diagram showing a state in which the antenna device to which the present invention is applied is mounted on an automobile.

[Explanation of symbols]

10 support plate, 10a waveguide insertion hole, 11 mounting body,
Reference numeral 12: waveguide, 13: rotary joint, 14: rotating body, 15: rotating plate, 15a: waveguide insertion hole, 16: cable, 17: guide member, 18: bundled band, 19: positioning plate, 19a ... waveguide insertion hole, 19b ... cable insertion hole.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01Q 1/22 H01Q 1/12

Claims (1)

(57) [Claims] 1. An antenna device comprising an antenna unit movably adjustable in azimuth and elevation directions, a rotating member supported by the antenna unit and provided with a plurality of cable insertion holes around a center of rotation. A support member provided coaxially with the rotating member on a fixed portion that movably supports the antenna unit, and a plurality of cable insertion holes corresponding to the plurality of cable insertion holes of the rotation member are formed; One end is connected to the transmission / reception control unit, and the other end is connected to the cable insertion hole of the rotation member and the cable insertion hole of the support member, and the antenna unit of the rotation member While being wound in a loop on one side of the side to fix the loop portion,
A plurality of cables fixed on one side of the transmission / reception control unit side of the support member; and a plurality of cables provided in the cable insertion holes of the rotation member and the support member, respectively, and movably guide the cables in conjunction with the movement of the antenna unit. A plurality of resin guide members to be disposed at an intermediate portion between the rotating member and the support member, wherein a plurality of cable insertion holes are provided corresponding to the plurality of cable insertion holes of the rotation member and the support member. is a resin positioning member for positioning the intermediate portion of the cable, the other a plurality of cables of the antenna portion of the support member
Antenna apparatus characterized by comprising a plurality of cables regulating member for regulating the movement in the axial direction in both sides near near the surface near neighbor and the resin positioning member.