JPS6245208Y2 - - Google Patents

Description

[Detailed Description of the Invention] Generally, a computer main body constituting a computer device and peripheral devices such as a printer connected thereto each have an external power supply terminal. In the past, when the computer main body and peripheral devices were connected, the external power supply terminals, which became unusable, remained exposed.

If this unusable external power supply terminal was exposed, the operation would be complicated, such as accidentally plugging the power into this external power supply terminal, and there was a high risk of causing circuit malfunction. . Conventionally, in order to avoid this problem, external power supply terminals that become unusable when the computer main body and peripheral devices are connected are made mechanically and electrically unusable. Therefore, conventional computer devices require components, circuits, etc. for this purpose, resulting in the inconvenience that the device as a whole becomes expensive.

The present invention has been devised in view of this point, and is intended to eliminate the above-mentioned drawbacks.

Hereinafter, an embodiment of a computer device according to the present invention will be described with reference to the drawings.

FIG. 1 shows a computer main body 100 constituting the computer device of this example. In the figure, 1 is a keyboard on which keys for inputting information are arranged, and 2 is a display made of, for example, a liquid crystal. Although not shown, a CPU (central processing unit), RAM (random access memory), ROM (read only memory), power supply circuit, etc. are arranged inside the computer body.

The part where the keyboard 1 is provided and the part where the display 2 is provided are connected via a hinge 3, and the part where the keyboard 1 is provided is in the direction of the arrow m _a1 in FIG. It is rotated around this hinge 3 and overlapped with the part where the display 2 is provided.

In FIG. 1, reference numeral 4 denotes a drawer portion for storing an expansion capsule 5. As shown in FIG. Here, the expansion capsule 5 is a case in which a RAM or ROM circuit module is placed in a compact case to facilitate memory expansion and replacement of programs used.

Further, in FIG. 1, 7 is a window for checking the display 6 of the expansion capsule 5 housed in the main body, and is covered with a transparent member such as acrylic.

In this example, as shown in FIG. 3, a connecting portion 8 for connecting peripheral devices is formed on the back side of the computer main body 100. As will be described later, the peripheral device is formed with a coupling portion that engages between the coupling portions 8, 8, thereby establishing a coupling connection.

Further, on the back side of the computer main body 100, a connector is provided in which terminals for data signals, power, etc. are arranged. In this case, for example, a printer connected to the back of the computer body has a connector formed at a portion corresponding to this connector 9, and when connected, necessary electrical connections are made through this connector 9.

Further, an external power supply terminal 10 is provided on the back side of the computer main body 100, and a predetermined DC voltage is supplied from an adapter described later. In this case, if a printer is connected to the back of the computer main body 100, for example, the external power supply terminal 10 is covered by the printer and becomes unusable.

FIG. 4 shows a power supply system diagram of the computer main body described above.

In the figure, reference numeral 10 indicates the external power supply terminal described above, the negative terminal 10a is grounded, and the positive terminal 10b is connected to the input side of the regulator 11. The stabilized DC voltage from the regulator 11 is supplied to the terminal 13 via the diode 12, and this stabilized DC voltage is supplied as a power source to the logic circuit 14 and the CPU, RAM, etc. 15.

In this FIG. 4, 16 indicates an adapter;
When a commercial alternating current power of, for example, 100 VAC is supplied to the power plug 17, a predetermined DC voltage, for example, a DC voltage Eo of 6 VDC, is obtained at the output side 18. This DC voltage Eo is supplied to the external power supply terminal 10.

Further, in FIG. 4, the terminal 19 is grounded, and the terminal 20 is connected to the input side of the regulator 11. Terminals 13, 19, and 20 are each arranged on a connector 9 provided on the back side of computer main body 100.

Next, FIG. 5 shows the computer main body 100 mentioned above.
2 shows an example of a printer 200 connected to.

In the figure, 21 is a roll paper, and 22 is a switch for operating power on/off, line hood (paper feed), etc.

A coupling portion 23 is formed on the front surface of this printer 200, as shown in FIG. This joint 23
As shown in FIG. 7, the cross section is formed into a "V" shape. This is exactly the computer body 1 mentioned above.
The shape is such that it can be slidably engaged from the side direction between the coupling parts 8, 8 formed on the back surface of the 00.

Further, as shown in FIG. 6, a connector 24 is provided on the front surface of the printer 200. This connector 24 is provided at a position opposite to the connector 9 provided on the back of the computer main body 100, and engages the joint 23 on the front of the printer 200 between the joints 8, 8 on the back of the computer main body 100. The connector 24 is coupled to the connector 9 when the connector 24 is opened.

Further, on the back side of this printer 200, coupling portions 25, 25 are formed as shown in FIG. The connecting portions 25, 25 are connected to the computer main body 100.
It is formed in exactly the same way as the joint parts 8, 8 formed on the back surface of. The connecting portions 25, 25 are connected to the printer 20.
0 to further connect other peripheral devices, such as interfaces.

Further, a connector 26 and an external power supply terminal 27 are provided on the back side of the printer 200. The connector 26 is used to establish necessary electrical connections between the printer 200 and other peripheral devices connected thereto. The connector 26 and the external power supply terminal 27 are arranged in the same relationship as the connector 9 and the external power supply terminal 10 provided on the back surface of the computer main body 100.

FIG. 9 shows a power supply system diagram of this printer 200.

As described above, the printer 200 connects the connecting portion 23 formed on the front surface to the computer main body 10.
0 is connected to the back surface of the computer main body 100 by engaging between the connecting portions 8, 8 formed on the back surface of the computer body 100. At this time, the connector 24 provided on the front surface is coupled to the connector 9 provided on the back surface of the computer main body 100. and,
Necessary electrical connections are made between the printer 200 and the computer main body 100.

In FIG. 9, 28, 29, and 30 are terminals respectively arranged on the connector 24 provided on the front surface of the printer 200, and as described above, when the printer 200 is connected to the computer main body 100, the terminals 28, 29, and 30 are Terminals 13 and 1 arranged on the connector 9 provided on the back side of the main body 100
9 and 20.

Terminal 28 is connected to terminal 31, terminal 29 is grounded, and terminal 30 is connected to terminal 33. Further, the terminal 32 is grounded. Terminals 31, 32, and 33 are arranged on a connector 26 provided on the back of printer 200.

Further, in FIG. 9, 27 is the above-mentioned external power supply terminal, the negative side terminal 27a is grounded, and the positive side terminal 27b is connected to the terminal 30.
The DC voltage supplied to the external power supply terminal 27 is supplied as a drive power to the printer 200 via a resistor 34.

Next, FIG. 10 is a power supply system diagram of an interface 300 further connected to the back of the printer 200. This interface 300 is used, for example, when connecting an acoustic coupler or the like.

Although not shown in the drawings, coupling parts similar to those of the printer 200 described above are formed on the front and back sides of this interface 300. Similarly, a connector is provided on the front, and a connector and an external power supply terminal are provided on the back.

Therefore, this interface 300 is connected to the rear surface of the printer 200 by engaging the coupling section formed on the front surface between the coupling sections 25, 25 formed on the rear surface of the printer 200. At this time, the connector provided on the front is connected to the connector 26 provided on the back of the printer 200.
is combined with

In this FIG. 9, 35, 36 and 37 are terminals respectively arranged on the connector provided on the front surface of the interface 300, and as mentioned above, when this interface 300 is connected to the printer 200, the terminals 35, 36 and 37 are Terminals 31 and 32 arranged on the connector 26 provided on the back of the 200
and 33.

Terminal 35 is connected to terminal 38, terminal 36 is grounded, and terminal 37 is connected to terminal 40. Further, the DC voltage supplied to the terminal 35 is
is supplied as power to the Further, the terminal 39 is grounded. Terminals 38, 39, and 40 are arranged in a connector provided on the back side of interface 300.

Further, 42 is an external power supply terminal, a negative terminal 42 a is grounded, and a positive terminal 42 b is connected to the terminal 37 .

The computer main body 100, printer 200, etc. are constructed as described above, and when only the computer main body 100 is used as shown in FIG. 10, adapter 16
A DC voltage Eo is supplied from the output side 18 of. In this case, a stabilized voltage Eo' of the DC voltage Eo is obtained from the output side of the regulator 11, and is supplied as a power source to the logic circuit 14, CPU, RAM, etc. 15.

Further, as shown in FIG. 11B, when the printer 200 is connected to the computer main body 100 and used, the printer 200 is connected to the back of the computer main body 100. External power supply terminal 10
is considered unusable. In this case, the external power supply terminal 27 provided on the back of the printer 200
A DC voltage Eo is supplied from the output side 18 of the adapter 16.

This DC voltage Eo is supplied through a resistor 34 as a drive power source for the printer 200. Further, this DC voltage Eo is applied to the terminal 30 of the connector 24 provided on the front surface of the printer 200 and the connector 9 provided on the back surface of the computer main body 100.
is supplied to the input side of the regulator 11 through the terminal 20 of the . A stabilized voltage Eo' of the DC voltage Eo is obtained from the output side of the regulator 11, and this voltage is applied to the logic circuit 1 of the computer main body 100.
4. Supplied as power for the CPU, RAM, etc. 15.

Note that a stabilized voltage Eo' is obtained at the terminal 31 of the connector 26 provided on the back side of the printer 200.

Further, as shown in FIG. 11C, a printer 200 is connected to the computer main body 100, and further,
When this printer 200 is used by connecting the interface 300 described above, the printer 200 is connected to the back of the computer main body 100, so the external power supply terminal 10 provided on the back of the computer main body 100 is not used. It is considered possible. Furthermore, since the interface 300 is connected to the back of the printer 200, the external power supply terminal 27 provided on the back of the printer 200 becomes unusable. In this case, interface 3
A DC voltage Eo is supplied from the output side 18 of the adapter 16 to an external power supply terminal 35 provided on the back surface of the adapter 16.

This DC voltage Eo is
The power is supplied as drive power to the printer 200 through a terminal 37 of a connector provided on the front surface of the printer 200, a terminal 33 provided on the back surface of the printer 200, and a resistor 34.

Further, this DC voltage Eo is applied to the terminal 37 of the connector provided on the front surface of the interface 300.
Connector 26 provided on the back of printer 200
Terminal 33, connector 24 provided on the front side
The signal is supplied to the input side of the regulator 11 through the terminal 30 of the connector 9 and the terminal 20 of the connector 9 provided on the back surface of the computer main body 100. A stabilized voltage Eo' of the DC voltage Eo is obtained from the output side of the regulator 11, and this voltage is applied to the logic circuit 14, CPU, RAM, etc. 15 of the computer main body 100.
It is supplied as a power source. In addition, the stabilized voltage obtained from the output side of this regulator 11
Eo' represents the terminal 13 of the connector 9 provided on the back of the computer body 100, the terminal 28 of the connector 24 provided on the front of the printer 200, the terminal 31 of the connector 26 provided on the back, and the front of the interface 300. Power is supplied to the memory 41 through a terminal 35 of a connector provided in the memory 41 .

Note that a stabilized voltage is connected to the terminal 38 of the connector provided on the back of the interface 300.
Eo′ is obtained.

As is clear from the embodiments described above, the computer device according to the present invention is configured such that a peripheral device such as a printer having an external power supply terminal can be connected to the computer body provided with the external power supply terminal. At the same time, by providing the external power supply terminal on the computer main body side on the coupling surface, it is impossible to use the external power supply terminal on the computer main body side, and the external power supply terminal on the peripheral device side can be connected to the computer main body in addition to peripheral devices. This allows power to be supplied to the side as well. Therefore, when the computer main body and peripheral devices are coupled and connected, external power supply terminals that become electrically unusable are inevitably rendered unusable. There is no need to accidentally insert the power plug, the operation is clearer, and there is no fear of malfunction. Also,
There is no need for parts or circuits that mechanically or electrically make an external power supply terminal unusable as in the conventional case, and the device as a whole can be constructed at low cost.

Incidentally, in the above-described embodiment, examples of a printer and an interface are shown as peripheral devices, but the present invention is not limited to these.

[Brief explanation of drawings]

Figures 1, 2, and 3 are a plan view, side view, and rear view of the computer body, Figure 4 is a power system diagram of the computer body, Figures 5, 6, 7, and 8. The figures are a plan view, a front view, a side view, and a rear view of the printer, respectively. Fig. 9 is a power supply system diagram of the printer, Fig. 10 is a power supply system diagram of the interface, and Fig. 11 is a diagram used to explain the present invention. It is. 8, 23 and 25 are coupling parts, 9, 24 and 26 are connectors, 10, 27 and 42 are external power supply terminals, respectively, 100 is a computer main body,
200 is a printer, and 300 is an interface.

Claims (1)

[Scope of utility model registration request] By configuring a computer body provided with an external power supply terminal so that a peripheral device having an external power supply terminal can be connected to the computer body, and by providing the external power supply terminal on the body side on the coupling surface, the external power supply terminal on the body side can be connected. A computer device in which the use of a power supply terminal is disabled, and power can be supplied not only to the peripheral device but also to the main body side from the external power supply terminal on the peripheral device side.