JPH02213016A - Separated automatic switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Summary of the Invention) This invention relates to a separate, independent automatic switch that is used by being inserted into a power supply circuit, and is dedicated to the purpose of making it possible to automate the switching on and off of power to electrical appliances extremely easily. Insert a pair of contact pieces that are inserted into the power supply side outlet and a load side plug into the case of The casing includes an inserted opening/closing device and a control device for operating the opening/closing device in response to sound or light signals sent from the outside.

[Industrial application field]

The present invention relates to a separate, stand-alone automatic switch for use in a power supply circuit.

Power switches for electrical appliances are attached to the equipment housing, and many do not open and close automatically. The present invention is separated from the equipment housing,
This relates to a switch that is independent, automatically opens and closes, and can be controlled remotely.

[Conventional technology]

Power switches for televisions, radios, fluorescent lights, etc. are generally attached to the appliance housing.

Televisions that can be remotely controlled also have a power switch attached to the TV's casing, and the controller emits ultrasonic waves or the like to turn the switch on and off. Fluorescent lamps also have a power switch attached to the lamp, and the switch is turned on and off by pulling a string. There are also types that turn on and off fluorescent lights by turning on and off a switch mounted on the wall.
These switches usually do not have a remote control or a timer function.

[Problem to be solved by the invention]

There are many electrical appliances for which automation has not been used in the past, but it would be more convenient and successful to incorporate automation.

However, automating non-automated appliances requires modification of the appliances, which is not an easy task.

Therefore, it is an object of the present invention to make it possible to automate the switching on and off of power to electrical appliances in a very simple manner.

[Means to solve the problem]

As shown in FIG. 1, a separate automatic switch 10 of the present invention includes a dedicated casing 11, a pair of contact pieces 12 that are inserted into a power outlet, and a pair of contact pieces 12 that are inserted into a load side plug. Install 13. Further, a switching device 14 is inserted into the conductors 1+ and lx that connect these contact pieces, and this switching device is opened/closed by a control device 15, and these switching devices and the control device are placed in the above-mentioned casing ll. accommodate.

The control device 15 includes a power supply circuit 16 that is connected to the contact piece 12 to which a commercial alternating current voltage is applied and includes a transformer that outputs a low voltage alternating current, a rectifier that rectifies the low voltage alternating current and outputs a direct current voltage, and the like. A control circuit 17 is provided which operates with the output of the power supply circuit and opens and closes the switching device 14 according to the output of a sensor 18 that receives a signal from the outside.

The sensor 18 is a light receiver if the external signal is an optical signal, or a receiver of the signal if it is an infrared, audible, or ultrasonic signal.

The control circuit 17 may have a built-in timer.

In this case, opening/closing of the opening/closing device 14 can be delayed.

[Effect]

This separate type automatic switch 10 is used as shown in FIG. That is, the contact piece 12 is inserted into a commercial power outlet (not shown), and the plug 20 of a power supply line of an electrical device (not shown) is inserted.
is inserted into the contact piece 13.

In this state, when the light, sound wave, or ultrasonic wave transmitter 22 sends light, sound waves, or ultrasonic waves toward the sensor 18, the control circuit 17 operates to close the switchgear 14 and supply power to the electrical equipment. can. Further, the transmitter 22 can send a signal to open the switchgear 14 and stop power supply to the electrical equipment.

If a toggle element is provided in the control circuit 17, closing can be performed by transmitting the same signal from the transmitter 22 during the above period. A control circuit 1 is a circuit that modulates the signal and takes out the modulated signal.
7, the opening/closing of the opening/closing device 14 can be arbitrarily instructed by the transmitter 22.

Furthermore, if the control circuit 17 includes a timer, the transmitter 22 can instruct the closing of the switching device 14 and automatically open the switching device 14 after a certain period of time.

Further, the opening/closing device 14 can also be closed after a certain period of time from the time point instructed by the transmitter 22.

〔Example〕

FIG. 3(a) shows a separate type automatic switch operated by the ringing sound of a telephone.The ringing sound 23 of the telephone goes into a sensor, in this case, an audio-to-electrical converter, that is, a microphone 18, and the sensor output is sent to a waveform shaping circuit. 25, is converted into a rectangular wave, and is input to a counter 26. That is, the number of times the telephone rings is counted by the counter 26, and when it matches the number set in the setting device 27, the comparator 28 produces an output, and the bistable multivibrator 29 is set to set the output to H (high). ) level. Now the driver 14b of the switchgear 14
The contact 14a is closed, and the electric device having a plug (not shown) inserted into the contact piece 13 is supplied with power.

The telephone rings again, and when it reaches a predetermined number of times, the comparator 28 produces an output, which resets the area of the bistable multi-bi break 29, and the switchgear 14 opens the contact 14a to stop supplying power to the electrical equipment. do.

The telephone ring tone that causes the opening/closing device 14 to open/close may be coded to prevent malfunction.

In other words, if the counter is provided with a function to reset if there is no input for a certain period of time, then the comparator 28 will produce a match output when the bell rings the first three times, then twice, and will not produce a match output otherwise. can do.

FIG. 3(b) shows a separate automatic switch operated by an optical signal, in which case the sensor 18 is a photodiode and a resistor, etc., and when an optical signal 24 is received, the sensor 18 produces an output,
After being shaped by the shaping circuit 31, the bistable multivibrator 29 is set. As a result, the relay in the switching device 14 in this example operates, and power is supplied to the electrical equipment whose plug is inserted into the contact piece 13. To stop this power supply, just send the optical signal again. If the sensor 18 is an infrared sensor, this separate automatic switch becomes an infrared responsive type.

FIG. 3(C) shows an example of a separate automatic switch operated by ultrasonic signals. In this case, the sensor 18 is an ultrasonic receiver using a piezoelectric element or the like. The output of the sensor 18a passes through the sensitivity adjuster 32 to set/set a bistable multivib break.
Reset and open/close the open/close bag W14.

Figure 4 shows a separate automatic switch with a built-in timer. Ti
is an off timer, and T8 is an on timer.

Ra and Rb are contacts that are remotely controlled; Ra is for on and Rb is for off. *X t + X! l
Xs is an auxiliary relay. Normally open contacts of these relays and timers are indicated by the suffix a, and normally closed contacts are indicated by the suffix s. In the illustrated state, the contacts Xts++Xzm+ are open, so power is not supplied to the electrical equipment with the plug inserted into the contact piece 13.

When contact Ra is turned on by the remote control mentioned above, relay X is energized and contacts X Ifl+
starts timing. After the set time, timer T1 closes contact T1m. This energizes relay X2 and contacts X! , closes and holds itself, and the contact Xtkl+X!
kl is opened to deenergize relay XI and timer T+. When the relay X1 is deenergized, the contact X111+X+mz opens and the power supply to the electrical equipment is stopped. That is, after the contact Ra is closed by remote control, power is supplied to the electrical equipment for the time set in the timer TI. Even before timer TI finishes counting, if contact Rb is opened by remote control, power supply to the electrical equipment is stopped.

Furthermore, when the contact piece 12 of this switch is inserted into a power plug, the electric device is powered on after a certain period of time from that point.

That is, when the contact piece 12 is inserted into the power outlet, the timer T2 starts counting, and the contact T2 starts counting after the set time. Close.

This energizes relay X3 and contacts Cal+Xff
a! When X3k is closed and X3k is opened, the electrical equipment is supplied with power when X3.2 is closed, and relay X3 is self-held when X3.2 is closed.

If a remotely controlled contact similar to Ra (referred to as Ro) is inserted at point p in this diagram, power will be supplied to the electrical equipment after the time set by timer T2 from the time this contact R0 is closed. .

The control device 15 may include a processor,
In this case, various controls such as: After receiving an instruction from a remote point, ■ immediately start power supply to the electrical equipment and stop power supply after a certain period of time; ■ start power supply after a certain time and stop power supply after a predetermined time; Immediate start/stop of power supply, encryption of the instruction, etc. can be easily performed.

〔Effect of the invention〕

As explained above, according to the present invention, it is a 0-separation type that can automatically turn on/off the power of electrical equipment whose power on/off is not automated by remote control or by using a timer. Watt loss to any electrical equipment,
It can be easily applied by simply matching the power supply type. With the phone ring sound type, you can turn on/off your home electrical equipment from outside the home.
Can be blocked.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the principle of the present invention, Fig. 2 is an explanatory diagram of how to use the switch of the present invention, Fig. 3 is a block diagram showing an embodiment of the present invention, and Fig. 4 is another embodiment of the present invention. FIG. In Fig. 1, 11 is a housing, 12.13 is a contact piece, and 2. 12 is a conductor, 14 is a switchgear, and 15 is a control device.

Claims (1)

[Claims] 1. A pair of contact pieces (12) to be inserted into the power outlet and a pair of contact pieces (13) to be inserted into the load side plug are attached to a dedicated casing, and these power source side contact pieces A switchgear (14) inserted into a conductor connecting the load-side contact piece and a control device (15) that operates the switchgear in response to a sound or light signal sent from the outside.
) is provided in the housing. 2.A pair of contact pieces (12) that are inserted into the power outlet and a pair of contact pieces (13) that are inserted into the load side plug are attached to the dedicated casing (11), and these contact pieces on the power side and the load side A switchgear inserted into the conductor connecting the contact piece (
14), and a control device (15) that has a built-in remote-controlled timer and opens and closes the opening/closing device after a set time.
) is provided in the housing.