JPS642400Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a staged dimming control panel that uses loads such as fluorescent lamps and incandescent lamps in a staged dimming state to save power without reducing lighting performance. The object of the present invention is to provide a control panel that allows the setting of the lighting level to be easily changed at the installation site.

It is used to dim the illuminance of the lighting loads of multiple circuits in two stages using a staged dimmer unit provided in each circuit. As shown in Fig. 1, the conventional staged dimmer control panel has several staged dimmer units 2 and a relay unit 3 for driving the units built into a main body 1 made of a distribution board-like box. It is used by being attached to a wall etc. The illuminance level setting in such conventional stage dimmer control panels has been set by the manufacturer to an arbitrary level of 70% or more due to problems such as flickering due to the fluorescent lamp load.The setting method is shown in Figure 2. As shown,
A semi-fixed variable resistor 5 attached to a printed circuit board 4 of the dimming unit 2 is adjusted with a tool 6 to change the resistance value and set the output voltage to a desired value. However, when it is necessary to change the set value of the illuminance level at the installation site due to the request of the client, etc., there is a problem that it is difficult to adjust because the tools do not go inside the control panel. There was a problem in that it was necessary to measure the output voltage and current with a measuring device and adjust each time, which took a lot of time in the case of multiple circuits.

The present invention has been devised in view of these drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.
As with the conventional stage dimmer control panel, a dimmer unit 2, a relay unit 3, etc. are built into the main body 1, and the dimmer unit 2 has a semi-fixed variable resistor 7 and a sliding type as shown in Fig. 4. The variable resistor 8 is connected in series. In addition, 9 is a heat sink, 10 is a printed circuit board, 11 is a volume mounting bracket, 12 is an operating section, and 6 is a tool.

To set the illuminance level in a staged dimmer control panel with such a configuration, the manufacturer first sets the operation parts 12 of each variable resistor 7 to the position of the scale 5 as shown in FIG. The semi-fixed variable resistors 7 are sequentially adjusted using the tool 6 so that a constant output can be obtained, and then shipped and installed at the construction site. If the above set values need to be changed at the installation site due to the client's request, etc., the operation section 12 of the variable resistor 8 should be changed while measuring the output voltage, current, etc. of only one circuit out of the multiple circuits using a measuring device. It is sufficient to move the variable resistor 8 and set it to a desired value, and then align the operating section 12 of the other variable resistor 8 with the same scale of the variable resistor 8 that was initially set without measuring other circuits.

In this way, the staged dimmer control panel of the present invention has each dimmer unit 2 configured by connecting a semi-fixed variable resistor 7 and a variable resistor 8 in series, and the variable resistor 8
Since the operating section 12 of the variable resistor is placed on the front of the control panel, changing the illuminance level at the installation site according to the client's request can be done by simply operating the operating section of the variable resistor by hand. Since only a circuit is required, it is extremely easy to change the setting of the illuminance level.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional stage dimmer control panel, and FIG. 2 is an enlarged perspective view showing the same dimmer unit.
FIG. 3 is a perspective view showing an embodiment of the present invention, and FIG. 4 is an enlarged perspective view showing the light control unit portion of the same. 2... Dimming unit, 7... Semi-fixed variable resistor, 8... Variable resistor, 12... Operating unit.

Claims (1)

[Scope of utility model registration request] In a staged dimmer control panel that dims the illuminance of multiple circuit lighting loads in two stages using a dimmer unit installed in each circuit, the dimmer unit is connected in series with a semi-fixed variable resistor and a variable resistor. What is claimed is: 1. A staged dimmer control panel comprising: a variable resistor;