JPH04286203A - Antenna system - Google Patents

Abstract

PURPOSE:To reduce installation height by making the installation space of an electric system capable of being made small. CONSTITUTION:The antenna system is constituted as follows. A rotating plate 15 is installed at an antenna part side, and a supporting plate 10 is installed at a transmission reception control part side, and a cable 16 is inserted into the rotating plate 15 and the supporting plate 10 through a resinous guide member 17, and its middle part is positioned by a resinous positioning plate 19, and besides, the cable 16 is wound around into a loop shape at the antenna part side of the rotating plate 15, and this loop part is fixed to the rotating plate 15, and simultaneously, the cable 16 is fixed at the transmission reception control part side of the supporting plate 10, and besides, the movement in the axial direction of the cable 16 is regulated at the vicinity of the surface of one side of the antenna part side of the supporting plate 10 and the vicinity of both the surfaces of the positioning plate 19.

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, for example, an automobile and used for satellite communications.

0002

2. Description of the Related Art Generally, in an antenna device, an antenna section is disposed on a fixed section so as to be movable and adjustable in azimuth and elevation directions, and the antenna section on the movable side slips into contact with a transmission/reception control section disposed on the fixed section side. Electrically connected via a ring mechanism. As such a slip ring mechanism,
Usually, since it has a plurality of systems such as a signal system and a power supply system, about 20 to 40 stages of slip rings are provided.

However, in the above-mentioned antenna device, a multi-stage slip ring must be provided as a slip ring mechanism that electrically connects the antenna section and the transmission/reception control section, which increases the installation height. The problem is that it is difficult to configure without taking up space. According to this, for example, when a mobile ground station is configured by installing a reflector 2 constituting an antenna part on a car 1 in a movable and adjustable manner as shown in FIG. Due to the limitations, the installation space is restricted, and the installation is very troublesome. Particularly when considering installation in a small automobile, the installation space for the slip ring mechanism becomes a big problem.

0004

As described above, the conventional antenna device has a problem in that the installation space for the electrical system that electrically connects the antenna section and the transmission/reception control section becomes large.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an antenna device that has a simple configuration and can reduce the installation space for an electrical system.

[0006]

[Means for Solving the Problems] The present invention provides an antenna device having an antenna section movably adjustable in azimuth and elevation directions, which is supported by the antenna section and has a plurality of cable insertion holes around a center of rotation. A plurality of cable insertion holes are formed coaxially with the rotation member and corresponding to the plurality of cable insertion holes of the rotation member, respectively, in a fixed portion that movably supports the provided rotation member and the antenna portion. a support member having one end connected to the antenna section and the other end connected to the transmission/reception control section, the middle section being inserted into the cable insertion hole of the rotating member and the cable insertion hole of the support member. A plurality of cables are wound in a loop shape on one side of the rotating member on the antenna side and the loop portion is fixed, and a plurality of cables are fixed on one side of the support member on the transmission/reception control unit side. provided in each of the cable insertion holes of the member and the support member,
A plurality of resin guide members movably guide the cable in conjunction with the movement of the antenna portion, and a plurality of resin guide members disposed at an intermediate portion between the rotary member and the support member, and a plurality of cable insertion holes provided in the cable insertion hole. A resin positioning member is provided corresponding to the plurality of cable insertion holes of the rotating member and the supporting member, and positions the intermediate portion of the cable; The antenna device includes a plurality of cable regulating members that regulate movement in the axial direction in the vicinity of both surfaces.

[0007]

[Operation] According to the above structure, the cable wired between the support member and the rotating member is guided by the resin guide member of the rotating member as the antenna section moves, and the diameter of the loop changes depending on the direction of rotation. be changed. At the same time, the position of the middle part of the cable is regulated by the resin positioning member, and
The cable regulating member restricts the axial movement of the supporting member and the resin positioning member in the vicinity of the cable insertion hole, thereby preventing mutual entanglement. Thereby, electrical connection between the antenna section and the transmission/reception control section using a cable is realized without using a slip ring mechanism.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

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

The rotating body 14 is supported by the support plate 10 so as to be movable and adjustable, for example, in the azimuth (Az) direction. A rotating plate 15 is attached to the rotating body 14. The rotating plate 15 has a waveguide insertion hole 15a formed approximately in the center thereof,
Around this waveguide insertion hole 15a, five cable insertion holes corresponding to the five systems (not shown in the figure for convenience of illustration) correspond to the holes in the support plate 11. It will be established.

Power and signal cables 16 are inserted through the through holes of the support plate 11 and the rotary plate 15 via guide members 17. One end of this cable 16 is connected to the transmission/reception control section (not shown), and the other end is connected to the antenna section (not shown).
(not shown), is wound into a loop on the antenna side of the rotary plate 15, and the loop portion is fixed to the rotary plate 15 using a wire bundle band 18 called an insulation tie. The end of the cable 16 on the transmission/reception control section side is fixed to one side of the support plate 11 on the transmission/reception control section side using a bundle band 18 .

The guide member 17 is made of a resin material such as fluororesin, and is provided with an insertion hole 17a having a narrow middle portion corresponding to the wire diameter of the cable 16, as shown in FIG. This guide member protects the cable 16 by guiding the movement of the cable 16 as the antenna section (not shown) moves through its insertion hole 17a.

Further, a disc-shaped resin positioning plate 19 is disposed on the cable 16 at an intermediate portion between the support plate 11 and the rotary plate 15. A waveguide insertion hole 19a is formed in the positioning plate 19 at approximately the center thereof, and a cable insertion hole 19b is formed around the waveguide insertion hole 19a through the through hole of the support plate 10 and the rotation plate 15. It is formed corresponding to the hole (see Figure 2). The waveguide 12 is inserted into the waveguide insertion hole 19a of the positioning plate 19, and the intermediate portion of the cable 16 is inserted into the cable insertion hole 19b. The cable 16 inserted through the positioning plate 19 has cable bundle bands 18 attached near both sides thereof.
Movement in the axial direction is restricted by the positioning plate 19. Further, a bundle band 18 is attached to the support plate 10 of the cable 16 near the antenna section side, and similarly, movement of the cable 16 in the axial direction with respect to the support plate 10 is restricted. In addition, the positioning plate 19
For example, in the case of a configuration in which five cables 16 are wired, it is best to attach the cables 16 at a position about 1/3 from the rotary plate side between the rotary plate 15 and the support plate 10 for the most effective positioning. It has been confirmed that there is.

In the above structure, the support plate 10 and the rotating plate 1
The cable 16 wired between the antennas 5 and 5 is guided by the guide member 17 of the rotary plate 15 as the antenna section (not shown) moves, and the diameter of the loop is changed depending on the direction of rotation. At the same time, the cable 16 is fixed by the resin positioning plate 19.
The position of the intermediate portion is regulated, and the bundle band 18 restricts axial movement in the vicinity of the cable insertion hole 19a of the support plate 10 and resin positioning plate 19, for example, 360 degrees of the antenna portion (not shown). Allows for movement.

[0015] In this way, the antenna device has the rotary plate 15 on the antenna section side, and the support plate 10 on the transmission/reception control section side.
A guide member 1 is provided on the rotary plate 15 and the support plate 10.
The cable 16 is inserted through the cable 16 through the rotary plate 15, and its intermediate part is positioned by the positioning plate 19.The cable 16 is wound in a loop on the antenna part side of the rotary plate 15, and this loop part is connected to the rotary plate 15. At the same time, the cable 16 is fixed on the transmission/reception control section side of the support plate 10, and near one side of the support plate 10 on the antenna section side and on the positioning plate 19.
The structure is such that movement of the cable 16 in the axial direction is restricted near both surfaces of the cable 16. According to this, the electrical connection between the movably adjustable antenna part (not shown) and the transmission/reception control part (not shown) does not require the use of a conventional slip ring mechanism, and the installation height can be reduced. It becomes possible to construct a connection using a relatively small number of cables, and the installation space for the electrical system can be made smaller.

In the above embodiment, the cable 16 is fixed and regulated using the bundle band 18, but it is also possible to fix and regulate the cable 16 without using the bundle band 18. It is possible to configure Further, in the above embodiments, a case has been described in which the present invention is configured to be installed in an automobile, but the present invention is not limited to this in-vehicle use, and can be applied. Therefore, it goes without saying that the present invention is not limited to the above embodiments, and that various modifications can be made without departing from the spirit of the invention.

[0017]

As described in detail above, according to the present invention, it is possible to provide an antenna device that has a simple configuration and can reduce the installation space for an electrical system.

[Brief explanation of the drawing]

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. 1;

FIG. 3 is a diagram 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 a car.

[Explanation of symbols]

10... Support plate, 10a... Waveguide insertion hole, 11... Mounting body,
12... Waveguide, 13... Rotary joint, 14... Rotating body, 15... Rotating plate, 15a... Waveguide insertion hole, 16... Cable, 17... Guide member, 18... Wire bundle band, 19... Positioning plate, 19a ... Waveguide insertion hole, 19b... Cable insertion hole.

Claims (1)

[Claims] 1. An antenna device comprising an antenna part movably adjustable in azimuth and elevation directions, comprising: a rotating member supported by the antenna part and provided with a plurality of cable insertion holes around a center of rotation; a support member provided coaxially with the rotary member on a fixed portion movably supporting the antenna portion and having a plurality of cable insertion holes respectively corresponding to the plurality of cable insertion holes of the rotation member; and the antenna portion. one end is connected to the transmission/reception control section, and the other end is connected to the transmission/reception control section, and the intermediate section is inserted into the cable insertion hole of the rotating member and the cable insertion hole of the support member, and the antenna section of the rotating member is connected to the antenna section of the rotating member. a plurality of cables that are wound in a loop shape on one side of the support member to which the loop portion is fixed; and a plurality of cables that are fixed on one side of the transmission/reception control unit side of the support member; and cable insertion holes in the rotating member and the support member. a plurality of resin guide members that are respectively provided in the antenna section and movably guide the cable in conjunction with the movement of the antenna section; Cable insertion holes are provided corresponding to the plurality of cable insertion holes of the rotating member and the support member, and a resin positioning member for positioning the intermediate part of the cable, and a resin positioning member for positioning the plurality of cables near the other side of the support member. and a plurality of cable regulating members that regulate movement in the axial direction near both surfaces of the position regulating member.