JPH0160918B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dimming remote control device that allows dimming control of a dimming device at a remote location.

BACKGROUND ART A light control device for controlling lighting loads in a general home or a store adjusts the brightness to a desired level by operating a light control operation section provided on the light control device.

However, since this device requires operating a dimming operation section when dimming the light, in stores and the like, it is troublesome to have to go to the dimming device each time.

For this reason, it is known that the control section of the light control device is pulled out from the light control device to enable light control at a location remote from the light control device. However, with this device, there are three lead wires drawn out from the dimmer, and the connection position of the connection line between the control unit and the dimmer is determined, so there is a risk of incorrect connection and wiring work is required. There are inconveniences such as being troublesome.

Furthermore, as a device that allows remote control of the light control device using two wires, the device shown in FIG. 1 can be considered. This device connects a switch 34 which is separated from a light control device 31 and divides a variable resistor 32 with a switch operator 33 to supply different voltages to a pair of connecting wires 35, 35.
It is connected to a light control device.

However, when controlling multiple dimmer devices with one switch, the impedance on the dimmer side becomes low, so the divided voltage changes and the voltage required for switching operation decreases. It has been found that it is not practical because it can only be used when there is a one-to-one relationship between the dimming device and the switching device because it has drawbacks such as not being able to secure it, resulting in non-operation or malfunction.

Here, the present invention prevents dimming failure or malfunction even when controlling the dimming of a plurality of dimming devices with one dimming command device, and furthermore, the dimming command device is isolated from the dimming devices. An object of the present invention is to provide a dimming remote control device that can be easily installed by handling a low-voltage circuit.

In the present invention, a pair of signal lines are extended from a dimmer including a photocoupler and a driving device that energizes the light emitting elements of the photocoupler, and a DC power source is connected to the other end of the signal line, and the signal line has no polarity. The present invention is characterized in that it includes a dimming command device that includes a fixed voltage constant voltage device and can select the opening of the line, the insertion of the constant voltage device, and the application of full DC voltage.

The details of the present invention will be explained below with reference to the embodiment shown in FIG.

1 is an AC power source, 2 is a lighting load energized by the AC power source 2, and 3 is a light control device. This light control device 3 includes a phase control device 4 such as a triax interposed in series between an AC power source 1 and a lighting load 2;
A conduction angle control circuit 5 that operates the phase control device 4 and can supply, for example, two types of control signals, a pair of light receiving elements 6, 6 connected to the conduction angle control circuit 5 and selecting the control signal, and each light receiving element. Element 6,
6 and a pair of light emitting elements 7, 7 constituting a pair of photocouplers 8, 8, and a driving device 9 that selectively energizes the light emitting elements 7, 7 according to the input level. Further, the light control device 3 can be configured such that the phase control device 4 and the conduction angle control circuit 5 are connected by a photocoupler 10 so that an insulated state can be maintained. Reference numerals 11 and 11 indicate signal lines, and one end of each of the signal lines 11 and 11 extends from the light control device 3, and is formed of a pair of two wires that apply a voltage to the drive device 9. 12 is a DC power supply connected to the other ends of the signal lines 11, 11, and is, for example, a constant voltage device that supplies a constant voltage. Reference numeral 13 denotes a dimming command device, and this dimming command device 13 has a circuit switching device 14 connected to the signal line 11 at a position distant from the dimming device 3, and a circuit switching device 14 that switches the signal line 11 according to the operation of this circuit switching device 14. For example, a plurality of constant voltage diodes 1 may be inserted in series with
It includes a constant voltage device 16 which is made non-polarized by connecting terminals 5 and 15 with opposite polarities, and by the operation of the circuit switching device 14, opening of the line, insertion of the constant voltage device 16, and application of full DC voltage can be selected. It is formed. In this embodiment, the circuit switching device 14 includes a first contact 17 for opening the line, a second contact 18 to which the voltage regulator 16 is connected, and a third contact 19 for applying full DC voltage. This can be done by switching a switching operation body 20 that approaches and separates from each of these contacts 17, 18, and 19, respectively.

The light control device 3 also includes a non-polarization device 22 between the signal lines 11, 11 and the drive measurement device 10.

Next, the operation will be explained.

In FIG. 2, the signal lines 11, 11 are in an open state, and the dimmer 3 is in an inactive state, but the circuit switching device 14 of the dimmer command device 13 is activated.
In this embodiment, the switching operation body 20 is connected to the second contact 18.
By connecting to , a voltage approximately determined by the constant voltage device 16 is applied to the non-polarization device 22 of the dimming device 3 and then applied to the drive device 9 . The constant voltage applied to the drive device 9 is applied to one photocoupler 8 selected according to the input level, and the photocoupler 8
is driven, the conduction angle control circuit 5 and the phase control device 4 are brought into conduction, and the lighting load 2 is brought into the first dimming state.

In addition, by connecting the switching operation body 20 to the third contact, the entire voltage of the DC power supply 12 can be adjusted to the dimmer 3.
The voltage is applied to the depolarizing device 22 and the driving device 9 at the same time. The total voltage applied to the drive device 9 is applied to the other photocoupler 8 selected according to the input level, the photocoupler 8 is driven, the conduction angle control circuit 5 and the phase control device 4 are made conductive, and the lighting load 2 is turned on. The second dimming state is entered.

In this way, the dimming state of the lighting load 2 is determined by the dimming command device 13 including the constant voltage device 16, so that the impedance of the dimming device 3 becomes low.
The first and second
You can clearly switch the dimming level.

In this embodiment, the dimmer 3 and the dimmer command device 13 are configured one-to-one; however, when controlling multiple dimmers at the same time, a pair of signals from each dimmer is used. Connect the line to the signal line 11 of the dimming command device 13,
11. Even in this case, the dimming level of each dimming device can be clearly switched for the above-mentioned reasons.

As described in detail above, the present invention extends a pair of signal lines from a light control device including a photocoupler and a driving device that energizes a light emitting element of the photocoupler, and connects a DC power source to the other end of the signal line. At the same time, this signal line is equipped with a dimming command device that includes a non-polarized voltage regulator and can select the opening of the line, the insertion of a voltage regulator, and the application of full DC voltage. The impedance is low, the divided voltage does not change, and the dimming level can be switched clearly. Also, one dimming command device can control multiple dimming devices clearly. You can do it.

Furthermore, since a photocoupler is used in the dimmer, the dimmer and the dimmer command device can be kept in an insulated state, and the signal line and the dimmer command device can be treated as low-voltage circuits, making installation easier. In addition, the signal line can be made into a pair of two wires and is non-polar, so
It also has practical effects such as being able to prevent incorrect wiring and speeding up wiring work.

[Brief explanation of drawings]

FIG. 1 is a schematic circuit diagram showing a conventional example, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 1... AC power supply, 2... Lighting load, 3... Light control device,
4... Phase control device, 5... Continuity angle control circuit, 8, 8
...Photocoupler, 6, 6... Light receiving element, 7, 7... Light emitting element, 9... Drive device, 11, 11... Signal line, 1
2... DC power supply, 13... Dimming command device, 14... Circuit switching device, 16... Constant voltage device.

Claims (1)

[Claims] 1. A phase control device interposed in series between an AC power source and a lighting load, a conduction angle control circuit that supplies a plurality of control signals for operating this phase control device, and a connection to this conduction angle control circuit. and a light-emitting element forming a pair with each light-receiving element forming a photocoupler, and a driving device selectively energizing the light-emitting element according to an input voltage level. a pair of signal lines, one end of which extends from the dimmer and applies voltage to the driving device; a DC power source connected to the other end of the signal line; a circuit switching device connected to the signal line at a remote location; and a non-polarized constant voltage device that can be inserted in series with the signal line depending on the operation of the circuit switching device; A dimming remote control device comprising: a dimming command device that can selectively open a line, insert a constant voltage device, and apply full DC voltage. 2. The dimming remote control device according to claim 1, wherein the dimming device includes a non-polarization device interposed between the signal line and the drive device. 3. The dimming remote control device according to claim 1 or 2, wherein the phase control device and the conduction angle control device are connected by a photocoupler.