JP3134509U - Socket with current-sensitive triggered timer - Google Patents

Abstract

Provided is a socket with a current-sensitive triggered timer that can be used as a timer for an electric appliance that does not have a timer in itself and can also be used as an auxiliary timer for an electric appliance with a timer.
A main relay circuit, a magnetoelectric relay circuit, a counter circuit, a disconnection holding circuit, a time setting switch circuit, a sensitive amplifier circuit, an overload measuring circuit, a household socket, and a second timer are provided. In a socket with a current-sensing-triggered timer including a socket, the main relay circuit includes an output relay and a voltage input terminal, and the magnetoelectric relay circuit includes a capacitor, a diode, a magnetoelectric relay, and a resistor. The counter circuit is composed of a rectifier, a counter, and a time selection switch, and the separation holding circuit is composed of a neon tube, a light-actuated diode, a third operational amplifier, a signal triggering transistor, a diode, and a resistor.
[Selection] Figure 1

Description

The present invention relates to a socket with a current-sensitive triggered timer, and in particular, a socket with a current-sensitive triggered timer that immediately starts using the current passing through the socket timer and triggering the timer. It is about.

The general user often forgets to turn off the power after using an electric appliance (such as an iron), which wastes electric power, and the high temperature of the iron also risks burning surrounding furniture. On the other hand, even if the electric device itself has a timer, the setting of the timer is often forgotten, and it is still impossible to turn off the power in a timely manner.

The main object of the present invention is to provide a current-sensitive-triggered socket with a timer that can be used as an electrical timer without a timer in itself and can also be used as an auxiliary timer for an electrical appliance with a timer.

The present invention made to achieve the above object includes a main relay circuit, a magnetoelectric relay circuit, a counter circuit, a separation holding circuit, a time setting switch circuit, a sensitive amplifier circuit, an overload measuring circuit, In a socket with a current-sensing-triggered timer including a socket for home use and a socket with a second timer, the main relay circuit includes an output relay and a voltage input terminal, and the voltage input terminal is operated by the operation of the output relay. Is connected to a socket for home use or a socket with a second timer, and the magnetoelectric relay circuit is composed of a capacitor, a diode, a magnetoelectric relay, and a resistor, and receives the signal of the trigger transistor in the time setting switch circuit. The counter circuit includes a rectifier that supplies a direct current and a serial connection for counting. The separation and holding circuit includes a neon tube, a light-operated diode, a third operational amplifier for amplifying and rectifying the voltage, a signal triggering transistor, and a diode. The time-settable switch circuit is composed of three sets of setting knobs (switches) in units of minutes, sufficient time and time, and three sets of trigger transistors connected in series with each other. The sensitive amplifier circuit is composed of a transformer, a rated resistor, a set of operational amplifiers, a resistor, and a capacitor, and the household socket has a function of connecting to a general electric appliance as a timer. The second timer socket is connected in series with other timer sockets, and the overload measurement circuit has an operational amplifier and a bias value set in advance. Measured whether the current passing through the rated resistor is overloaded, and when a general electrical plug is inserted into the socket with timer, the voltage across the rated resistor in the socket drops. Then, the operational amplifier amplifies the signal and transfers it to the counter circuit, and when the counter reaches the set value, the signal of the setting knob is transferred to the signal triggering transistor to operate the magnetoelectric relay and turn on the output relay. The power supply of the electric appliance is interrupted, and the state in which the output relay is attracted by the separation holding circuit is maintained, and then the separation holding circuit is interrupted if the switch of the electric device is turned off. If the output relay recovers from the attracted state to the original state, and if the current flowing through the rated resistance is too large, the sensitive amplifier circuit The signal transmitted to the overload measurement circuit surely exceeds the bias value (ie, overload limit value) preset in the overload measurement circuit. At this time, the overload trigger transistor is activated and the magnet The gist of the present invention is a socket with a current-sensitive triggered timer, which is characterized in that the current between the sensitive relay and the output relay is cut off to prevent electrical damage.

The invention according to claim 1, wherein the voltage input terminal communicates with a household socket or a socket with a second timer, and a plurality of sockets with a timer can be used by an operation of an output relay. The gist is that it is a socket with a current-sensitive triggered timer.

In the present invention, the seven counters are a quinary base, a decimal base, a hex base, a decimal base, a decimal base, a hex base, and a decimal base, respectively. The gist is that it is a socket with a current-sensitive triggered timer.

In the present invention, the counter circuit is selectively connected to the P terminal of the counter 3C3 or the Q terminal of the 3C5 by the time switch to set the unit in minutes or in seconds. The main point is that it is a socket with a current-sensitive triggered timer.

In the present invention, the setting knob (switch) of the time setting switch circuit is a toggle switch or a rotary switch having one input point and ten output points and one input point and six output points. The gist of the present invention is the socket with the current-sensing-triggered timer described.

In the present invention, the detachment holding circuit and the magnetoelectric relay circuit are interlocking devices, and a silicon control switch (TRIAC) is operated by a coupling between a CdS resistor and a neon tube instead of the above member, or self-holding. The gist of the socket with a current-sensing-triggered timer according to claim 1, wherein the use of a relay has the same effect.

In the present invention, if a bias value is preset in the overload measurement circuit and a current passing through the rated resistor is too large, a signal transmitted from the sensitive amplifier circuit to the overload measurement circuit is surely the bias. The current according to claim 1, wherein an overload triggering transistor is activated to interrupt a current between the magnet-sensitive relay and the output relay. The gist is that it is a socket with a touch-sensitive type timer.

According to the socket with a current-sensitive triggered timer according to the present invention, the following effects are obtained.
(A) Since the setting of the timer (the position of the knob or button) is not changed, it is not necessary to set the timer every time it is used, so that the use is extremely convenient.

(B) Even if the timer or power-off member of the electric appliance itself fails, the electric power supply of the electric appliance is turned off in a timely manner, so the safety is extremely high.

(C) The current sensitive touch-sensitive socket according to the present invention can be connected in series with a plurality of current sensitive touch-sensitive sockets, and each current sensitive touch-sensitive socket can be connected in series with various types of electrical appliances. Each kind of electric appliance can be controlled in sequence.

(2) The detachment holding circuit 4 and the magnetoelectric relay circuit 2 are interlocking devices, and operate a silicon control switch (TRIAC) by coupling a CdS resistor and a neon tube instead of the above member, or self-holding. Using a relay (Keep Relay) has a similar effect.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A socket with a current-sensing-triggered timer according to the present invention includes a main relay circuit 1, a magnetoelectric relay circuit 2, a counter circuit 3, a detachment holding circuit 4, a time setting switch circuit 5, a sensitive amplification circuit 6, A household socket 7, a socket 8 with a second timer, and an overload measurement circuit 9 are included.

The main relay circuit 1 includes an inductance, an output relay having three contacts of C, NC, and NO, and voltage input terminals A and B, and the voltage input terminal is connected to a household socket 7 by the operation of the output relay. Or communicate with the second timer-equipped socket 8. So, the socket with current-sensitive triggering timer according to the present invention can be connected in series with a plurality of current-sensitive triggering sockets, and each current-sensitive triggering socket can be connected in series with various types of electrical appliances. It is possible to sequence control various types of electric appliances.

The magnetoelectric relay circuit 2 includes a capacitor 2C having a rectification and waveform filtering function, diodes D1 and D2, a magnetoelectric relay 21, and a resistor 2R. The output relay is operated in response to the signal of Tr3.

The counter circuit 3 includes a rectifier for supplying a direct current, a flip-flop 3C9, seven counters 3C1 to 3C7 connected in series for counting, and a time selection switch 3S1, and the seven counters 3C1 to 3C7. Are a quinary base, a decimal base, a hex base, a decimal base, a decimal base, a hex base, and a decimal base, respectively, and the counter 3C3 has an input terminal P. The input terminal Q is provided, the counter 3C2 is provided with the output terminal G, and when the output terminal G is connected to the input terminal P by the time selection switch 3S1, the maximum time that can be set is 9 hours 59 minutes. When the output terminal G is connected to the input terminal P, the longest time that can be set is 9 minutes 59 seconds.

The separation holding circuit 4 is in a state in which the output relay 11 is activated when the electric plug is inserted into the socket with a timer, and the common point C and the normally-on point NC are separated from each other. The common point C is connected to the power source A, and the normally-on point NC communicates with the household socket 7 via the rated resistance RM and reaches the power source B via the inside of the electricity. A circulating voltage is generated between the point C and the normally-on point NC. The voltage causes the neon tube 41 to emit light and actuate the light-actuating diode 42 to hold the magnetoelectric relay 21 in the attracted state and hold the output relay 11 in the attracted state, thereby turning off the power to the appliance. . The separation holding circuit 4 includes a neon tube 41, a light-actuated diode 42, a third operational amplifier OP3 for amplifying and rectifying the voltage, a signal triggering transistor Tr4, a diode D4, and a resistor 4R. Is done.

The time settable switch circuit 5 includes three sets of setting knobs (switches) 5S1, 5S2, and 5S3 in units of minutes, sufficient time, and three sets of trigger transistors Tr1, Tr2, and Tr3 connected in series with each other. In order to stabilize the signal, between the counter 3C5, 3C6, 3C7 and the minute setting knob 5S1, the sufficient time setting knob 5S2, and the time setting knob 5S3, the minute series connection diode 5D1 and the sufficient time series connection are provided. A diode 5D2 and a time series connection diode 5D3 are provided, and the setting knobs (switches) 5S1, 5S2, and 5S3 of the time setting switch circuit 5 are toggle switches or one input point ten output points and one input point six outputs. This is a point rotary switch.

The sensitive amplifier circuit 6 includes a transformer T, a rated resistor RM, a set of operational amplifiers OP1 and OP2, a resistor 6R, and a capacitor, and supplies a stabilized current to the counter circuit 3. .

As shown in FIG. 2, the socket with a current-sensing-triggered timer according to the present invention sets the time with setting knobs (switches) 5S1, 5S2, and 5S3, and then inserts an electric plug into the household socket 7 to Is turned on, a current flows, for example, when a 110 volt power supply is supplied to a 100 watt electric appliance, a 0.9 ampere current is generated, and the current passes through the rated resistance RM according to the present invention, and the rated resistance RM A voltage difference is generated at both ends, the minute voltage difference is amplified and rectified as a signal, and then transferred to the counter circuit 3 to trigger the counters 3C1 to 3C7. At this time, there is an elementary counter function, and The standard of the rated resistance RM is related to electric appliances. The rated resistance RM generates heat if it is too large, and if it is too small, the timer cannot be started, and the rated resistance RM is 0.01 ohm. Thus, a 30-1000 watt electric appliance can be used.

Further, as shown in FIGS. 1 and 2, the minute voltage difference is used as a signal, the signal is amplified via the No. 1 operational amplifier OP1 and the No. 2 operational amplifier OP2, and rectified by the diode D3. The waveform is filtered by the capacitor resistance component (RC), transferred to the counters 3C1 to 3C7, and the counters 3C1 to 3C7 are reset. The power is input to the counters 3C1 to 3C7 at 50 Hz. When the set time of the setting knobs (switches) 5S1, 5S2 and 5S3 is reached, the trigger transistors Tr1, Tr2 and Tr3 of the time settable switch circuit 5 activate the magnetoelectric relay 21 to operate the output relay 11 and turn off the power supply of the electric appliance. .

When the set time is reached while the electric appliance is energized, the output relay 11 is activated, the common point C and the normally-on point NC are disconnected, the common point C is connected to the power source A, and the normally-on point NC is It communicates with the household socket 7 via the rated resistance RM and reaches the power source B point via the inside of electricity, so that a circulating voltage is generated between the common point C and the normally-on point NC, The voltage causes the neon tube 41 to emit light and actuate the light-operating diode 42, and the signal voltage generated by the light coupling state is transferred to the third operational amplifier OP3 for amplification, rectification, and output to the signal triggering transistor Tr4. Thus, the magnetoelectric relay 21 is held in the attracted state, and the output relay 11 is kept in the attracted state, whereby the electric power source is turned off. When the switch of the electric device is turned off, the circuit from the normally on point NC of the output relay 11 to the power source B through the household socket 7 through the rated resistor RM and the inside of electricity is disconnected, Therefore, the voltage between the common point C and the normally-on point NC disappears, and the outputs of the neon tube 41, the beam operating diode 42, and the third operational amplifier OP3 are also stopped. Becomes a disconnected state, and the output relay 11 becomes the original state. At this time, the next timing process can be started.

The overload measurement circuit 9 can immediately monitor the current flowing through the electric appliance, and when the current exceeds a bias value (that is, an overload limit value) preset in the overload measurement circuit 9. The overload-triggered transistor Tr5 is activated immediately to cut off the current between the magnet-sensitive relay and the output relay, and the interruption process can be completed within one second. The conventional thermocouple overload switch is tens of seconds. Compared with the cut-off time of a few minutes, the cut-off time of the present invention is greatly reduced.

It is a block diagram of a control circuit according to the present invention. It is a circuit diagram of a control circuit according to the present invention. FIG. 3 is an enlarged view of a part of a control circuit according to the present invention. It is the layout of the exterior of the socket which concerns on this invention.

Explanation of symbols

1 Main relay circuit 11 Output relay A Voltage input terminal B Voltage input terminal C Output relay common point NC Output relay normal ON point NO Output relay normal OFF point 2 Magneto relay circuit 21 Magneto relay 2R Resistance 2C Capacitor D1 Diode D2 Diode 3 Counter circuit 3C1 to 3C7 Counter 3C9 Flip-flop 31 Bridge rectifier 3S1 Select switch D3 Diode 3R Resistor 4 Disconnection holding circuit 41 Neon tube OP3 No. 3 operational amplifier D4 Diode 4R Resistor Tr4 Signal trigger transistor 5 Time setting switch circuit Tr1 Touch transistor Tr2 Touch Transistor Tr3 Induced transistor 5S1 Minute setting knob 5S2 Sufficient setting knob 5S3 Time setting knob 5D1 Minute series connection diode 5D2 Sufficient series connection diode 5D3 Series connected diode 6 Sensitive amplifier 6R Resistor OP1 No. 1 operational amplifier OP2 No. 2 operational amplifier RM Rated resistance T Transformer 7 Home socket 8 Socket with second timer 9 Overload measurement circuit 9VR Bias limit value setting resistor Tr5 Overload trigger Transistor OP4 4th operational amplifier

Claims (7)

Includes a main relay circuit, a magnetoelectric relay circuit, a counter circuit, a disconnection holding circuit, a time setting switch circuit, a sensitive amplifier circuit, an overload measurement circuit, a household socket, and a socket with a second timer In the socket with a current-sensitive triggered timer, the main relay circuit includes an output relay and a voltage input terminal, and the voltage input terminal communicates with a household socket or a socket with a second timer by the operation of the output relay. The magnetoelectric relay circuit is composed of a capacitor, a diode, a magnetoelectric relay, and a resistor. The magnetoresistive relay circuit operates the output relay in response to a signal from the trigger transistor in the time setting switch circuit. A rectifier that supplies current, seven counters connected in series for counting, and a clock selection switch The separation holding circuit is composed of a neon tube, a light-actuated diode, a third operational amplifier for amplifying and rectifying the voltage, a signal triggering transistor, a diode, and a resistor. The settable switch circuit is composed of three sets of setting knobs in units of minutes, sufficient time and time, and three sets of trigger transistors connected in series with each other. The sensitive amplifier circuit includes a transformer, a rated resistance And a pair of operational amplifiers, resistors, and capacitors. The household socket has a function of connecting to a general electric appliance as a timer, and the second timer socket is provided with another timer. Connected in series with a socket, the overload measurement circuit is composed of an operational amplifier and a transistor with a preset bias value, and allows the rated resistance to flow through. Measure whether the current is overloaded, and when a general electrical plug is inserted into the socket with timer, the voltage across the rated resistance in the socket drops, and the operational amplifier amplifies the signal and counters When the counter reaches the set value, the signal of the setting knob is transferred to the signal trigger transistor and the magnetoelectric relay is activated to activate the output relay, thereby interrupting the power supply of the electric appliance. In addition, if the separation state of the output relay is maintained by the separation holding circuit, and then the switch of the electric device is turned off, the separation retention circuit is interrupted and the output relay is attracted to the original state. If the current passing through the rated resistance is too large, the signal transmitted from the sensitive amplifier circuit to the overload measuring circuit is The overload measurement circuit exceeds the preset bias value. At this time, the overload-triggered transistor is activated to cut off the current between the magnet-sensitive relay and the output relay to prevent damage from electricity. A socket with a current-sensitive triggered timer. 2. The current sensitive trigger according to claim 1, wherein the voltage input terminal communicates with a socket for home use or a socket with a second timer by using an output relay, so that a plurality of sockets with a timer can be used. Socket with type timer. The current sensitive trigger according to claim 1, wherein the seven counters are a quinary base, a decimal base, a hex base, a decimal base, a decimal base, a hex base, and a decimal base, respectively. Socket with type timer. 2. The current response according to claim 1, wherein the counter circuit is selectively connected to a P terminal of the counter 3 </ b> C <b> 3 or a Q terminal of the 3 </ b> C <b> 5 by a timekeeping switch to set a unit of minutes or a unit of seconds. Inspired socket with timer. 2. The current-sensitive triggered type according to claim 1, wherein the setting knob of the time setting switch circuit is a toggle switch or a rotary switch having one input point, ten output points, and one input point and six output points. Socket with timer. The separation holding circuit and the magnetoelectric relay circuit are interlocking devices, and the silicon control switch is operated by the coupling of a CdS resistor and a neon tube instead of the above member, or the self-holding relay is also used. The socket with a current-sensitive triggered timer according to claim 1, wherein the socket has a special effect. If the bias value is preset in the overload measurement circuit and the current passing through the rated resistance is too large, the signal transmitted from the sensitive amplifier circuit to the overload measurement circuit will surely exceed the bias value, At this time, the overload-triggered transistor is activated to cut off the current between the magnet-sensitive relay and the output relay, and the current-sensitive-triggered socket according to claim 1.