JPH07105814A - Switch appliance, switch apparatus, and switch system - Google Patents

Abstract

PURPOSE:To provide a switch system with a simple structure for which down sizing and cost down are attempted and achieved. CONSTITUTION:A lamp 1 and fan 3 are turned on by operating an electric power source switch SW11. The lamp 1 is lighted by closing the electric power supply switch SW11. The fan 3 is driven by applying voltage to an input coil CT11a of a current transformer CT11 by the electric power supply switch SW11, inducing voltage in an output coil CT11b, reciprocally turning on a light emitting diode LED11 and a light emitting diode LED12 at every half cycle of commercial alternating current power supply turning on a delay circuit 52 driving a photo- transistor PTr11, and driving a thyrister Th11. The lamp 11 is immediately put out by turning off the electric power supply switch SW11 and after the output of a photocoupler 51 is stopped, the fan 3 is stopped by turning off a TRIAC Tr11 after a prescribed time set by the delay circuit 52 passes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device, a switch device and a switch system which operate in a slow motion control.

[0002]

2. Description of the Related Art Conventionally, as a switching device of this type,
For example, the configuration shown in FIG. 6 is known.

The switching device shown in FIG. 6 has a power supply line E.
Power switch SW1, relay coil Ry1L, and relay contact Ry1S1 driven by this relay coil Ry1L between 1 and E2
And for example a toilet lamp 1 is connected in series. The relay coil Ry1L also drives the relay contact Ry1S2, which is connected to the delay circuit 2
The output terminal of the delay circuit 2 is connected to the gate of the triac Tr1, and the triac Tr1 is connected between the power supply lines E1 and E2 via the fan 3 installed in the toilet like the lamp 1.

When the power switch SW1 is closed,
Energize the relay coil Ry1L and close the relay contacts Ry1S1 and Ry1S2 by energizing the relay coil Ry1L. As described above, the relay contact Ry1S1 and the relay contact Ry1S2 are closed, so that the lamp 1 is turned on and the delay circuit 2 also applies a voltage to the gate of the triac Tr1 to drive the fan 3.

[0005]

However, in the circuit shown in FIG. 6, as described above, the two-pole relay contact Ry1S1 is used.
Since the relay contact Ry1S2 is used, the device becomes complicated and large, and the cost increases.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a switch device, a switch device, and a switch system which have a simple structure and which are downsized and reduced in cost.

[0007]

According to a first aspect of the present invention, there is provided a switch device having a current detecting section which operates according to the presence or absence of an operating current of a first load and a second load which is operated by the current detecting section. And a delay circuit for dynamic control.

According to a second aspect of the present invention, there is provided the switch device according to the first aspect.
The switch device described is housed in a two-module housing.

According to a third aspect of the present invention, there is provided a switch system including the switch device according to the first aspect and a human switch for operating a delay circuit of the switch device.

[0010]

In the switch device according to the first aspect, the current detecting section detects the operating current of the first load, and the delay circuit is controlled to be delayed by detecting the presence or absence of the operating current. The size can be reduced and the cost can be reduced.

According to a second aspect of the present invention, there is provided the switch device according to the first aspect.
Since the switch device described above is used, the switch device can be made smaller than the conventional one, so that it can be housed in a two-module housing, and can be effectively used even in the case of a general-purpose three module.

According to a third aspect of the present invention, there is provided a switch system including the switch device according to the first aspect and a motion switch for operating the delay circuit of the switch device. Therefore, the delay circuit corresponds to the motion switch. Can work.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the switch system of the present invention will be described below with reference to the drawings.

In FIG. 4, 11 is a two-module type slow switch main body, 12 is a one-module type changeover switch main body, and these slow-motion switch main body 11 and changeover switch main body 12 are, for example, three-module type continuous supports.
It is inserted into a mounting hole 14 formed in 13 and is held and fixed by two or one holding pieces 15, respectively.

Further, flanges 16 are formed at both ends in the longitudinal direction of the continuous support 13, and mounting holes 17 for mounting on a wall or the like are formed in the flange 16, and
Locking holes 18 and the like are formed.

The flat plate-shaped plate 19 has a locking projection formed on the back side (not shown) locked in the locking hole 18 of the continuous support 13. Further, a window hole 21 is formed in the center,
A handle 22 of a one-module type and a handle 23 of a two-module type, which are attached to the slow-motion switch body 11 and the change-over switch body 12 and whose names are written on the surfaces, are located in the window hole 21, respectively. Further, the handle 22 is provided with an off operation portion 22a on one end side and an on operation portion 22b on the other end side. Similarly, the handle 23 is provided with an off operation portion 23a on one end side and an on operation portion 23b on the other end side.

As shown in FIG. 5, the slow switch main body 11 has a circuit board 32 attached to a two-module type housing 31 having an open top surface. And this circuit board 32
The slow switch section 33 and the power switch latch section 34 are formed in the. The delay switch unit 33 has an electric component 35 for setting the delay, and further includes a delay switch 36 for turning off the delay and a delay time setting switch 37 for setting the delay time. On the other hand, the power switch latch unit 34
Has an oscillating portion 38 that can mechanically oscillate and maintain the oscillated state without using an electrical function, and an off setting portion 39 is formed at one end of the oscillating portion 38. On setting section 40 at the other end
Are formed. Then, the OFF setting section 39 and the ON setting section 40 include holding sections 41 and 42 for holding the handle 22.
Are formed.

Further, the lid 43 is held and locked by the housing 31,
The lid 43 closes the opening of the housing 31. The lid 43 is formed with fulcrums 44 and 45 protruding at both ends in the center, and the holding portion 41 is provided on one side of the fulcrums 44 and 45.
Is formed, and an opening 47 through which the holding portion 42 is projected is formed on the other side. Further, a power switch SW11 for setting the delay OFF is attached to the side where the opening 47 is formed. Further, a time setting opening 49 is formed near the power switch SW11, and a delay time setting dial 50 attached to the delay time setting switch 37 is attached.

Further, the changeover switch body 12 also has an OFF setting section 39 formed at one end and an ON setting section 40 formed at the other end. The OFF setting section 39 and the ON setting section 40 are provided with the handle 23. Holding parts 41 and 42 for holding are formed.

As shown in FIG. 1, the slow switch main body 11 includes a power switch SW11, an input winding CT11a of a current transformer CT11 and a first load, for example, a toilet lamp, between the power lines E1 and E2. 1 are connected in series.
Further, the output winding CT11b of the current transformer CT11 has a light emitting diode of, for example, a photocoupler 51 as a current detection unit.
LED11 and LED12 are connected in anti-parallel, and a phototransistor PTr11 is provided by being photocoupled to these light emitting diodes LED11 and LED12. The phototransistor PTr11 is connected to the delay circuit 52, the output terminal of the delay circuit 52 is connected to the gate of the triac Tr11, and the triac Tr11 is, for example, the lamp 1.
Similarly, is connected between the power supply lines E1 and E2 via the fan 3 as a second load installed in the toilet.

Further, the delay circuit 52 is specifically as shown in FIG.

First, a smoothing capacitor C11 and a constant voltage element TNR11 are connected between the power supply lines E1 and E2 via a fan 3. Between both terminals of the constant voltage element TNR11, an inductor L11, a resistor R12 and a resistor R12 are connected. Full-wave rectifier via R13
61 AC input terminals are connected. Also, full-wave rectifier
The gate of triac Tr11 is connected to the connection point of 61 and resistor R12, and between both terminals of this triac Tr11,
It is connected between both terminals of capacitor C11.

Further, a voltage divider circuit of resistors R14 and R15 is connected between the DC output terminals of the full-wave rectifier 61, and a transistor is connected to the connection point of the resistors R14 and R15.
The base of Q11 is connected, the collector of this transistor Q11 is connected to the positive electrode of the full-wave rectifier 61 via the resistor R16,
The emitter is connected to the negative electrode. Also transistors
The base of transistor Q16 is connected to the connection point of Q11 and resistor R16, the collector of this transistor Q16 is connected to the positive electrode of full-wave rectifier 61 via resistor R17, and the emitter is connected to the base of transistor Q17. . The collector of this transistor Q17 is connected to the positive electrode of the full-wave rectifier 61 via the resistor R18.
The emitter of Q17 is connected to the collector of the phototransistor PTr11 via the diode D11, and the emitter of this phototransistor PTr11 is connected to the time constant circuit 63 via the resistor R19.

The time constant circuit 63 sets the delay time of the delay circuit 52, and is composed of a capacitor C12, a semi-fixed resistor R20 and a resistor R21.

Further, the emitter of the transistor Q17 is
It is connected to the negative electrode of the full-wave rectifier 61 via the diode D12 and the capacitor C13. Also, the capacitor C13
In parallel, a series circuit of voltage dividing resistors R22 and R23 is connected.At the connection point of these resistors R22 and R23, the non-inverting input terminal of the operational amplifier OP11 and the comparator Is connected to the non-inverting input terminal of the operational amplifier OP12.

The output terminal of the operational amplifier OP11 is a resistor.
It is connected via R24 to the base of a transistor Q19 whose collector is connected via resistor R25 to the inverting input terminal of operational amplifier OP11.
The emitter of Q19 is connected to the negative electrode of full-wave rectifier 61. Furthermore, the output terminal of the operational amplifier OP11 is an operational amplifier.
It is connected to the inverting input terminal of OP12 and to the base of transistor Q20 via resistor R26, the collector of which is a diode via resistor R27.
It is connected to the connection point of D12 and capacitor C13, and the emitter is connected to the connection point of resistors R14 and R15.

Further, the output terminal of the operational amplifier OP12 is connected to the gate of the thyristor Th11 via the resistor R28, the anode of this thyristor Th11 is the positive electrode of the full-wave rectifier 61 via the resistor R29, and the cathode is the full-wave rectifier 61. Is connected to the negative electrode of.

A parallel circuit of a capacitor C14 and a resistor R30 is connected between the cathode and the gate of the full wave rectifier 61.

Further, as shown in FIG. 3, the lamp 1 and the fan 3 are connected in parallel to the power switch SW11 of the slow switch main body 11 via the power lines E1 and E2 of the commercial AC power source E. A human presence switch 65 that turns on the switch by detecting a person or the like may be connected.

Next, the operation of the above embodiment will be described.

First, the lamp 1 and the fan 3 are turned on by detecting a person by the human presence switch 65 or by operating the ON operation portion 22b of the handle 22 to operate the power switch SW11. Of these, the lamp 1 is turned on by the same operation as closing the power switch SW11 or closing the power switch SW11 by the human detection switch 65. On the other hand, by the power switch SW11 or the motion switch 65,
A voltage is applied to the input winding CT11a of the current transformer CT11,
A voltage is induced in the output winding CT11b and the light emitting diode LED1
1 and the light emitting diode LED12 are alternately turned on every half cycle of the commercial AC power supply E, and the phototransistor PTr1 is turned on.
1 to turn on the delay circuit 52 and turn on the thyristor.
The fan 3 is operated by driving Th11.

Specifically, when the lamp 1 is turned on, an operating current flows, and this operating current is supplied to the light emitting diode LED1.
1, When the LED12 detects, the phototransistor PTr11 turns on, the transistors Q16 and Q17 turn on, and the capacitor C12 is charged. In addition, during this charging, when the transistor Q11 turns off only near the zero cross, and the voltage set by the resistors R14 and R15 reaches the turn-on voltage of the transistor Q11, current is supplied to the base and the transistor Q11 is turned on. By turning on Q11 and bypassing the base current of the transistor Q16, the transistors Q16 and Q17 are turned off, and the capacitor C12 is charged only in the low voltage part where the conduction angle near the 0 cross of the commercial AC power supply E is extremely small. To do. In addition,
Capacitor C12 is not charged except in the vicinity of 0-cross where transistor Q11 turns on, so capacitor C1
The charge of 2 is discharged by the time constant circuit 63, but the semi-fixed resistor R2
By adjusting the resistance value of 0, the balance of charge and discharge is maintained, and the capacitor C12 is set so that a predetermined charge is always stored when the phototransistor PTr11 is turned on.

Then, the capacitor C12 is charged and the resistance
If the voltage is higher than the voltage set by R22 and resistor R23, the operational amplifier OP11 outputs the inverted signal,
The inverted output of 11 causes the operational amplifier OP12 to output non-inverted output, applying a voltage to the gate of the thyristor Th11 to
Turn on. Therefore, when the thyristor Th11 is turned on, the output of the full-wave rectifier 61 is short-circuited and the triac
Tr11 turns on and fan 3 drives.

On the other hand, the power switch SW11 is turned off,
When the human detection switch 65 no longer senses a human, the lamp 1 is turned off. When this lamp 1 goes out, the operating current stops, and when this operating current disappears, the light emitting diode LE
D11 and LED12 are turned off, phototransistor PTr11 is turned off, capacitor C12 is no longer charged, time constant circuit
Since it is only discharged by 63, this time constant circuit 63
After the time set by, the voltage of the capacitor C12 in the operational amplifier OP11 decreases, the voltage of the non-inverting input rises, and the operational amplifier OP11 outputs non-inverting output. This non-inverting output inverts the operational amplifier OP12 to output thyristor Th11.
Is turned off, circuits such as resistors R14 and R15 are connected between the output terminals of the full-wave rectifier 61, the impedance increases, and the triac Tr11 turns off due to the drop in the gate voltage of the triac Tr11, causing the fan 3 to ramp up. Stops later than 1. In addition, the operational amplifier OP11 performs non-inverting output, turning on the transistor Q19 and turning on the capacitor C1.
Shorting across both ends of C2 causes capacitor C12 to be rapidly discharged and reset.

[0035]

According to the switch device of the first aspect,
Since the current detection unit detects the operating current of the first load and controls the delay circuit to delay, it is possible to reduce the size and cost with a simple configuration.

According to the switch device of the second aspect, since the switch device of the first aspect is used, the switch device can be made smaller than the conventional one, so that it can be housed in the housing of two modules, and even in the case of three modules of general-purpose products. Can be used effectively.

According to the switch system of the third aspect, the switch device according to the first aspect and the motion switch for operating the delay circuit of the switch device are provided. The operation circuit can be operated.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a connection of a switch device according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a circuit configuration of the above switch device.

FIG. 3 is a circuit diagram showing the connection of the above switch system.

FIG. 4 is an exploded perspective view showing the above switch device.

FIG. 5 is an exploded perspective view showing a delay switch body of the same.

FIG. 6 is a circuit diagram showing a connection of a conventional switch device.

[Explanation of symbols]

 1 Lamp as first load 3 Fan as second load 31 Case 51 Photocoupler as current detector 52 Delay circuit 65 Presence switch

Claims (3)

[Claims] 1. A current detection unit that operates according to the presence or absence of an operating current of a first load, and a delay circuit that is operated by this current detection unit and delays and controls a second load. And switch equipment. 2. A switch device comprising the switch device according to claim 1 housed in a housing of two modules. 3. A switch system comprising: the switch device according to claim 1; and a human switch for operating a delay circuit of the switch device.