JP2569174Y2 - Power supply interlocking switch device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply interlocking switch device which can simultaneously turn on and off a power supply when a plurality of television receivers are connected.

[0002]

2. Description of the Related Art In a conventional television receiver, as shown in FIG. 2, a power switch (1) of the television receiver is turned off.
Some devices have an AC outlet (2) for supplying a voltage to another device by turning on the FF. The output of the AC outlet (2) is linked with the power switch (1). According to this, when the power switch (1) is controlled, other devices are also linked. It is very convenient because it can be done.

However, the specification of such an AC outlet (2) has a maximum output of about 100 to 200 W, and it is impossible to link two or more television receivers each having 100 W or more. .

For example, when two or more 120 W television receivers are connected to the AC outlet (2) as shown in FIG. 3, 120 W × 2 units = 240 W, and the maximum specification of the AC outlet (2) is 200 W.
Even in this case, the capacity of 40 W is insufficient, and the power supply circuit (3) of the television receiver (A) is broken or the power supply cord (4) is burnt.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the problem that, even when a plurality of television receivers are used, the power switch of a specific television receiver is turned on / off to provide a plurality of other television receivers. The machine also provides a device for turning the power on and off.

[0006]

According to the present invention, there is provided a power supply circuit for outputting a voltage supplied from an AC power supply to each circuit in a device, a power switch for turning on and off a power supply of the device,
A switching unit for supplying or interrupting a power supply voltage from the power supply circuit to each circuit in the device by turning on and off the power switch, and a power supply to each circuit in the other device when connected to another device. An information input terminal for inputting information to which voltage is supplied, and when connected to a different device other than the other device, a power supply voltage is supplied to each circuit in the own device to the different device. An information output terminal for outputting information that is present, and the switching unit when the power switch is turned on or when information that another device supplies a power supply voltage to each circuit is input from the information input terminal. And a control unit controlled to supply a power supply voltage to each circuit by operating the power supply, and a power supply voltage is supplied to each circuit when the switching unit operates. Power interlock comprising switching device and means for creating information to the information output terminal by pressure.

[0007]

According to the present invention, even when the television receivers are tangent to each other, the power switch signal information of a specific television receiver is supplied to other television receivers, and the power supply of a plurality of television receivers is supplied. Can be turned on and off as well.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIG. 1 and will be described with reference to the drawings. In FIG. 1, the description of the same figure number as that of the prior art is omitted.

In the figure, 5 is a terminal with a synchro input switch, 6 is a synchro output terminal, 7 is a relay, 11 is a relay switch, 8 is a flyback transformer, 9 is a control IC for turning the relay 7 on and off, 10 is a connection line for connecting the synchro output terminal 6 and the terminal 5 with a synchro input switch, and 12 is a plug.

Next, the operation of the present invention will be described. The television receivers (D), (E), and (F) have a terminal with a synchro input switch (5) and a synchro output terminal (6), which are connected to the plug (12) of the connection line (10). ), The power supply signal information is transferred to the control IC (9).
To supply. In the television receiver (D),
The solid line of the power switch (1) indicates the ON state,
IB is supplied from a power switch (1) to a control IC (9) through a terminal (5) with a synchro input switch.

Then, IB flows to the relay (7) by the control IC (9), and the relay switch (11) is turned on.
Then, AC power is supplied to the power supply circuit (3), a current flows through the flyback transformer (8), and an LB voltage is generated.

The LB is in contact with the synchro output terminal (6), and is output when the plug (12) of the connection line (10) is connected.

The signal path from the power switch (1) of the terminal (5) with a synchro input switch of the television receiver (E) is cut by connecting the plug (12) of the connection line (10). Television receiver (D)
The LB output from the terminal passes through the terminal with synchro input switch (5) and is input to the control IC (9). Control IC
When LB is input to (9), IB flows to the relay, the relay switch (11) is turned on, and the AC power is supplied to the power supply circuit (3).
Power is supplied and the power is turned on.

The television receiver (F) and a plurality of television receivers are also connected to the plug (1) of the connection line (10).
2) By connecting the television receiver (E)
Performs the same operation as.

Next, when the power switch (1) of the television receiver (D) is turned off as indicated by a dotted line, the IB of the television receiver (D) is cut off by the power switch (1) and synchronized. The current does not flow to the input switch terminal (5), the control IC (9) controls so that IB does not flow to the relay (7), the relay switch (11) is also turned off as indicated by the dotted line, and the power supply circuit (3) Is not supplied with AC power, and the power is turned off.

When the power is turned off, no current flows through the flyback transformer (8), and LB is not output from the synchro output terminal (6).

In the television receiver (E), since LB is not supplied from the synchro output terminal (6) of the television receiver (D), the terminal (5) with a synchro input switch.
The control IC (9) controls the relay (7) so that IB does not flow, and the relay switch (11) is turned off as indicated by the dotted line, and the power supply circuit (3)
Is not supplied with AC power, and the power is turned off.

When the power is turned off, no current flows through the flyback transformer (8), and LB is not output from the synchro output terminal (6).

And a television receiver (F);
Further, a plurality of television receivers perform the same operation as the television receiver (E) by connecting the plug (12) of the connection line (10).

Accordingly, by turning on / off the power switch (1) of the television receiver (D), the other television receivers (E) and (F) can be simultaneously turned on / off. it can.

[0021]

[Effects of the Invention] According to the school proposal, when a plurality of television receivers such as a karaoke monitor and an industrial monitor are installed, the power switch of the television receiver is set to one.
By turning off / on one power switch of a specific television receiver, the power supply of a plurality of television receivers can be simultaneously turned off.
・ Can be turned ON.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a conventional technique.

FIG. 3 is a diagram showing a conventional technique.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 power switch 2 AC outlet 3 power circuit 4 power cord 5 synchro input switch terminal 6 synchro output terminal 7 relay 8 flyback transformer 9 control IC 10 tangent 11 relay switch 12 plug

Claims (1)

(57) [Scope of request for utility model registration] 1. A power supply circuit for outputting a voltage supplied from an AC power supply to each circuit in a device, a power switch for turning on and off a device, and a power supply voltage from the power supply circuit by turning on and off the power switch Means for supplying or shutting off to or from each circuit in the device, and information for inputting information that a power supply voltage is supplied to each circuit in the other device when connected to another device. When connected to a different device other than the input terminal and the other device,
An information output terminal for outputting information that the power supply voltage is supplied to each circuit in the own device to the different device; and when the power switch is turned on or another device is connected to each circuit from the information input terminal. Control means for controlling the supply means to supply the power supply voltage to each circuit by operating the switching means when the information supplying the power supply voltage is input; and Means for generating information to said information output terminal by a voltage obtained by being supplied to a circuit.