JPH0134446Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to radio equipment, and particularly relates to improvements in portable radio equipment for personal radio or amateur radio.

External high frequency amplifier (booster) for portable radio equipment
When connecting to amplify and transmit high frequency output,
Since the battery built into a portable radio has poor ability to drive a booster, an external power supply device is usually used when connecting the booster.

When operating a portable radio device as a fixed or vehicle-mounted device in this way, it is unnecessary to set batteries in the portable radio device, and installing the radio device and booster separately is not recommended. This results in 2 points, which has the disadvantage of requiring a large installation area.

In addition, an external power supply is connected to both sides, which has the disadvantage of complicating switch operations, antenna connections, and the like.

The purpose of this invention is to make the booster unit detachable from the battery unit portion of the main body of the radio, and to enable selection of either the battery unit or the booster unit depending on the mode of operation.

This invention is characterized in that a battery unit that houses the battery that drives the radio main body and a booster unit that amplifies the high frequency output from the radio main body can be selectively attached to and detached from the radio main body.

Hereinafter, this invention will be described in detail with reference to embodiments shown in the drawings.

FIGS. 1 and 2 show an embodiment of the radio device of this invention.

In FIG. 1, on the upper side of the radio main body 2,
A unit mounting portion 8 is formed in which a battery unit 4 or a booster unit 6 can be attached and detached. A guide groove 10 is provided on the upper surface of the unit mounting portion 8.
and engagement recesses 12A, 12B are formed.
The engaging recesses 12A and 12B are formed as L-shaped grooves. A protrusion 1 inserted into the guide groove 10 is provided on the lower surface of the battery unit 4 and the booster unit 6.
4 are formed, and the engagement recesses 12A,
Engagement pieces 16A and 16B that engage with 12B are formed.

In addition, the battery unit 4 and the booster unit 6
A protrusion 17 for insertion into the radio main body 2 is formed on the front surface of the radio device, and a connector portion 18 is formed on the protrusion 17. That is, battery unit 4
The connector part 18 has power contacts 20A, 20
B. A unit determination contact 20E for determining the connection of the battery unit 4 is installed. Also,
The booster unit 6 has power contacts 20A, 2
0B, transmission/reception switching contact 20C, power switching contact 2
0D, a unit discrimination contact 20E, and a coaxial connector 22 are installed.

Then, on the front panel 24 of the radio main body 2,
Frequency channel display section 26, signal strength display section 2
7, output display sections 28A, 28B, 28C, mode display section 30, frequency adjustment knob 32, volume knob 34, squelch knob 36, memory switching knob 38, memory switches 40, 42,
An output switching switch 44, a microphone connector 46, and a rod antenna 48 are installed. In addition, 50 is a portable belt or the radio device body 2
This is a fixing screw.

In FIG. 2, a recess 52 is formed in the unit mounting portion 8 of the radio main body 2 to engage the protrusion 17 of the battery unit 4 or the booster unit 6.
A connector portion 54 to be connected to the connector portion 18 of the battery unit 4 or the booster unit 6 is installed in this recess 52, and the contacts 20A, 20B, 20C,
Contacts 21A, 21B, 21C, 21D, 21E and a coaxial connector 23 corresponding to the coaxial connectors 20D, 20E and the coaxial connector 22 are formed.

Furthermore, a power supply connector section 56 and an external antenna connector section 58 are formed on the back surface of the radio main body 2.

A fixing mechanism such as a one-touch attachment/detachment mechanism or a fixing pin that opens and closes the fixing blade by operation is installed between the radio main body 2 and the battery unit 4 or booster unit 6, making it possible to attach and detach the two. At the same time, the structure is such that both can be firmly fixed.

FIG. 3 shows the correspondence of the contacts of each connector part 18, 54, and A is the connector part 5 of the radio main body 2.
4, B is the connector portion 18 of the battery unit 4, and C is the connector portion 18 of the booster unit 6.

FIG. 4 shows a display switching circuit for the output display sections 28A, 28B, and 28C, and parts common to the embodiment shown in FIGS. 1 to 3 are given the same reference numerals.

In FIG. 4, the switch 20e is connected to the contact point 2.
This corresponds to 0E, voltage Vcc is applied to contact a via resistor 70, and contact b is grounded. In this case, the switch 20e closes to the contact a side when the booster unit 6 is attached, and closes to the contact b side when the battery unit 4 is connected. Also,
The output changeover switch 44 is operated on the front panel 24 of the radio main body 2, and a voltage Vcc is applied to its contact a via a resistor 72, and its contact b is grounded. In this case, contact a is set to the high output side, and contact b is set to the low output side.

This display switching circuit includes a switch 20.
NAND circuits 74, 76, 78, 80, inverters 82, 8
4 and an OR circuit 86. On the output side of the NAND circuit 74, a light emitting diode 88 forming the output display section 28A, and on the output side of the OR circuit 86, a light emitting diode 88 forming the output display section 28B. On the output side of the diode 90 and the NAND circuit 80, a light emitting diode 92 constituting the output display section 28C is connected to the ground side with resistors 94, 96, and 98, respectively.
connected via.

With the above configuration, as shown in FIGS. 1 and 2, the battery unit 4 can be attached and detached from the radio body 2, and the booster unit 6 can be attached and detached in place of the battery unit 4. . In this case, each unit 4 or 6 inserts its protrusion 14 into the guide groove 10 of the radio main body 2, and also engages and slides into the engagement recesses 12A, 12B to connect the connector parts 18, 54 of both units. The radio main body 2 and the battery unit 4 or booster unit 6 are fixed together by a one-touch attachment/detachment mechanism or other attachment/detachment means (not shown), and can be easily attached/detached.

Therefore, as shown in FIG. 5A, the radio main body 2
When the battery unit 4 is installed in
It can be used portable as a low output radio. In this case, if a plurality of battery units 4 are prepared, it becomes easier to replace batteries for each unit when used for a long time.

Furthermore, when the booster unit 6 is attached to the radio main body 2, it is necessary to supply power from an external power supply device 100, as shown in FIG. 5B, in order to operate it as a high-output radio. However, the radio main body 2 and the booster unit 6 are integrated,
Since it has a single housing structure and its volume is reduced by installing the booster unit 6 instead of the battery unit 4, no separate mounting space is required for the booster unit 6, so a small and lightweight high-power radio device is constructed. be able to. This is effective when attached to the front panel surface of an automobile, and can be installed efficiently in a narrow space.

Then, as shown in FIG. 5A, the radio main body 2
If the battery unit 4 is attached to the
The switch 20e shown in the figure closes to the contact b side. Then, when the switch 44 is closed to the contact a side (high output side), the NAND circuit 78 outputs a high (H) level, current flows through the light emitting diode 90, and the output display section 28B lights up, as shown in FIG. 1W output is displayed. Furthermore, when the switch 44 is closed to the contact b side (low output side), the NAND circuit 7
4, 76, and 78 have low (L) level outputs, whereas the NAND circuit 80 has H level outputs, current flows through the light emitting diode 92, and the output display section 28
C lights up and the 200mW output shown in Figure 6 is displayed.

Further, as shown in FIG. 5B, when the booster unit 6 is attached to the radio main body 2, the switch 20e shown in FIG. 4 is closed to the contact a side.
Then, when the switch 44 is closed to the contact a side (high output side), the NAND circuit 74 outputs an H level, current flows through the light emitting diode 88, the output display section 28A lights up, and the 10W output shown in FIG. Is displayed. Furthermore, when the switch 44 is closed to the contact b side (low output side), the NAND circuits 74, 78,
80 outputs low (L) level, whereas NAND
The circuit 76 becomes an H level output, current flows through the light emitting diode 90, and the output display section 28 shown in FIG.
B lights up and the 1W output is displayed.

Further, FIGS. 7 and 8 show examples of contact structures of the connector section 18 of the battery unit 4 or booster unit 6 and the connector section 54 of the radio main body 2.

In the embodiment shown in FIG. 7, the contacts 20 and 21 are formed of metal plates such as phosphor bronze having good conductivity and elasticity. In this way, the contacts 20, 21
If they are pressed together in the direction of the arrow, a good electrical connection can be obtained between them due to their elastic force.

In the embodiment shown in FIG. 8, a spring 102 is interposed between the contact 21 and the contact 20 so that the contacts 20 and 21 can come into contact with each other elastically. Even with this configuration, good electrical connection can be obtained.

In addition, in the embodiment, the display section that indicates whether the battery unit or booster unit is attached is shared with the output display section, so the display section is simplified, but the display section that indicates whether the battery unit or booster unit is attached is and the output display may be configured separately.

As explained above, according to this invention, it is possible to selectively attach and detach the battery unit and booster unit to the main body of the radio, making it possible to replace the units depending on the operating mode, and in the case of high-output operation. Since a single housing structure can be obtained, a compact high-output radio device can be constructed, and effects such as a reduction in installation space can be obtained.

[Brief explanation of the drawing]

1 and 2 are perspective views showing an embodiment of the radio device of this invention, FIG. 3 is an explanatory view showing the configuration of the connector section, FIG. 4 is a circuit diagram showing the display switching circuit, and FIG. An explanatory diagram showing the connection form between the radio main body and each unit, Fig. 6 is an explanatory diagram showing a part of the front panel surface of the radio main body, and Figs. 7 and 8 show examples of the contact structure of the connector part. FIG. 2...Radio device body, 4...Battery unit, 6...
...Booster unit, 28A, 28B, 28C...
...Output display section.

Claims (1)

[Claims for Utility Model Registration] (1) In addition to making the battery unit that houses the battery that drives the main body of the radio device removable, a booster unit that amplifies the high frequency output from the main body of the radio device can be used in place of the battery unit. A radio device characterized by being detachable from the device body. (2) The wireless device according to claim 1, wherein the wireless device main body is provided with a display section that displays whether a battery unit or a booster unit is installed.