JPH0321089Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coupling device for a vehicle-mounted/portable radio device, which allows the portable radio device to be used as a vehicle-mounted radio device.

Conventionally, there has been a device of this type as shown in FIG. In FIG. 1, reference numeral 1 denotes a portable radio device including a transmitter/receiver 2, a portable antenna 3, a portable telephone 4,
A switch 5 and a connector 6 are provided. On the other hand, 7 is an in-vehicle adapter, which includes an in-vehicle telephone 8, an in-vehicle antenna 9, and a connector 6.

In FIG. 1, when the portable radio device 1 is used for in-vehicle use, the connector 6 of the in-vehicle adapter 7 and the connector 6 of the portable radio device 1 are connected by mechanical contact. It was possible to connect the transmitter/receiver 2 in the vehicle 1 to the vehicle-mounted telephone 8 and vehicle-mounted antenna 9. At this time, the switch 5 switches from the portable radio device 1 side to the in-vehicle adapter 7 side.

Conventional in-vehicle/portable wireless devices use the connectors 6, 6 as described above, and because they are electrically connected through mechanical contact, the connectors 6, 6 are frequently disconnected. The disadvantage is that poor contact is likely to occur due to stress when the device is connected to the device, oxidation of the surface of the contact portion, etc., and there are many failures that result in connection failure, resulting in decreased reliability when used in a vehicle.

This idea was made to eliminate the above-mentioned drawbacks, and when a portable radio is attached to an in-vehicle adapter, the transmitter/receiver of the portable radio and the in-vehicle antenna can be connected without contact using an antenna coupler. The transmitter/receiver and the in-vehicle telephone are coupled by an optical coupler, so that
The purpose of this invention is to provide a new in-vehicle/portable wireless device that can reduce failures due to poor contact and improve reliability.

An embodiment of this invention will be described below with reference to FIG.

In FIG. 2, the same reference numerals as in FIG. 1 indicate the same or corresponding parts, and the explanation will be omitted. Reference numeral 10 denotes an antenna coupler, which is provided on the side of the vehicle-mounted adapter 7 on which the portable radio device 1 is attached, and connects the transmitter/receiver 2 and the vehicle-mounted antenna 9 by spatially coupling with the portable antenna 3 in a non-contact state. It is an electrical connection.

By arranging the antenna coupler 10 parallel to and close to the portable antenna 3, it is possible to have a high degree of coupling without electrical contact. Reference numeral 11 denotes an optical coupler that spatially couples the in-vehicle adapter 7 and the portable radio device 1 by optical signals in a non-contact state, and connects the transmitter/receiver 2 of the portable radio device 1 and the in-vehicle adapter 7 for in-vehicle use. It electrically connects the telephone set 8. The optical coupler 11 is composed of a light emitting element (E/O) and a light receiving element (O/E), and by arranging them at close distance, it is possible to construct an extremely stable coupling circuit.

In this way, in the above embodiment, the in-vehicle adapter 7
The transmitter/receiver 2 of the portable radio 1, the in-vehicle antenna 9 of the in-vehicle adapter 7, and the in-vehicle telephone 8 are connected in a non-contact state without the need for mechanical contact with the portable radio 1. can.

In the embodiment shown in FIG. 2, the antenna coupler 10 is used only on the vehicle adapter 7 side, but the same effect can be obtained even if the same antenna coupler 10 is attached to the portable radio device 1 side and placed oppositely. .

As described above, according to this invention, when a portable radio device is attached to an in-vehicle adapter, the transmitter/receiver of the portable radio device and the in-vehicle antenna are coupled in a non-contact state by the antenna coupler, and the above-mentioned Since the transmitter/receiver and the in-vehicle telephone are configured to be coupled by an optical coupler, failures caused by poor contact and the like as in the conventional system are reduced and reliability is improved.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing a conventional in-vehicle/portable radio device, and Fig. 2 is an in-vehicle/portable wireless device according to an embodiment of this invention.
FIG. 1 is a configuration diagram showing a portable wireless device. 1 is a portable radio device, 6 and 6 are connectors, 7 is an in-vehicle adapter, 8 is an in-vehicle telephone, 9 is an in-vehicle antenna, 10 is an antenna coupler, and 11 is an optical coupler. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] The in-vehicle adapter is equipped with an in-vehicle telephone and an in-vehicle antenna, and the portable radio is equipped with a transmitter/receiver, a portable telephone, and a portable antenna, and the above-mentioned portable radio is attached to the in-vehicle adapter, A switching means connected to the transmitter/receiver and configured to switch from the mobile phone side to the in-vehicle phone side; and a switching means that connects the portable radio device and the in-vehicle adapter using an optical signal; an optical coupler for coupling the transmitter/receiver; and an optical coupler connected to the in-vehicle antenna, placed close to the portable antenna, and spatially coupled to the portable antenna in a non-contact state, the in-vehicle antenna and the transmitter/receiver. An in-vehicle/portable wireless device characterized by comprising: an antenna coupler for coupling with the antenna coupler;