JP6547952B2 - Lighting control switch - Google Patents

Description

  Embodiments of the present invention relate to a lighting control switch.

  Conventionally, a light control switch is provided on a wall surface such as an entrance, a corridor or a stair, for example, and automatically controls the lighting load installed in the entrance, the corridor or the stair according to the presence or absence of a person. .

  In this lighting control switch, a human sensor that senses a change in the heat source accompanying the movement of a heat source is used to control lighting load when it senses a change in the human body into the sensing area of the human sensor. There is. Furthermore, in the illumination control switch, an illumination sensor for detecting the ambient illumination is used in combination, and control is performed so that the illumination load is turned on according to the detection of the human sensor only when the surroundings are dark. Then, in the lighting control switch, when the lighting load is turned on, lighting is continued for the preset lighting time set in advance, and is turned off after the setting lighting time has elapsed.

  In such a lighting control switch, once the lighting load is turned on, the lighting load can not be turned off unless the preset lighting time set in advance elapses.

JP, 2014-86188, A

  The problem to be solved by the present invention is to provide a lighting control switch that can turn off the lighting load that has been lit without waiting for the elapse of the set lighting time.

  The illumination control switch of the embodiment includes a human sensor, an illumination sensor, and a control unit. The human sensor senses changes in the heat source. An illumination sensor detects ambient illumination. When the human sensor detects a change in the heat source when the illuminance detected by the illuminance sensor is equal to or lower than the first reference illuminance, the control unit performs lighting control of the lighting load continuously for a predetermined set lighting time. The control unit turns off the illumination load when the illumination detected by the illumination sensor falls below the second reference illumination during the illumination control while continuing the illumination load for a predetermined set illumination time.

  According to the present invention, it can be expected that the lighting load that has been lit can be turned off without waiting for the elapse of a predetermined set lighting time.

FIG. 2 is a circuit diagram of a lighting control switch illustrating one embodiment. It is a front view of a lighting control switch same as the above. It is a side view of a lighting control switch same as the above. It is a timing chart which shows control of lighting load of a lighting control switch same as the above. It is a timing chart which shows the lighting control of lighting load of the lighting control switch same as the above. It is a timing chart which shows an example of control of the luminescence display part of the illumination control switch same as the above. It is a timing chart which shows an example of control of the luminescence display part of the illumination control switch same as the above. It is a timing chart which shows the other example of control of the light emission display part of an illumination control switch same as the above.

  Hereinafter, one embodiment will be described with reference to FIGS. 1 to 8.

  As shown in FIG. 1 to FIG. 3, the lighting control switch 10 is provided on a wall surface such as an entrance, a corridor or a stair, for example, and the illumination load 11 installed in the entrance, the corridor or the stair Turn on and off automatically.

  The lighting control switch 10 is a wiring device installed in a wiring box embedded in a wall surface. The lighting control switch 10 includes a support 14 for installation in the wiring box, and a switch body 15 attached to the support 14. A cosmetic cover that covers the front side periphery of the switch main body 15 is attached to the support 14 installed in the wiring box.

  The switch body 15 is provided with an operation surface 18 on the front surface, and a main body 19 that houses a control circuit and the like is provided on the back surface.

  On the lower side of the operation surface 18, for example, a milky white sensor window 20 capable of transmitting visible light and heat rays (infrared rays) is provided. Inside the sensor window 20 are disposed a human sensor 21, which senses a change in the heat source due to the movement of the heat source, an illuminance sensor 22, which senses the brightness of the surroundings, and a light emission display 23 which performs light emission display. There is. For example, an LED is used for the light emitting display unit 23.

  A setting unit 25 covered with an openable / closable lid 24 is provided above the sensor window 20 of the operation surface 18. The setting unit 25 is provided with an operation unit such as a knob for arbitrarily setting a set lighting time for keeping the lighting load 11 on.

  A mode switch 26 is provided on the upper side of the setting unit 25 of the operation surface 18. The mode change switch 26 can be set to either “automatically” to automatically control lighting on / off of the lighting load 11, “on” to always light the lighting load 11, or “off” to constantly turn off the lighting load 11. it can.

  Further, as shown in FIG. 1, the lighting control switch 10 includes a pair of power terminals 28 to which the power source E is electrically connected, and a pair of load terminals 29 to which the lighting load 11 is electrically connected. The pair of power supply terminals 28 and the pair of load terminals 29 are electrically connected to each other.

  The illumination control switch 10 includes a control unit 31 that controls the illumination load 11. The control unit 31 includes an open / close unit such as a triac electrically connected between the pair of power terminals 28 (between the pair of load terminals 29), and controls the open / close unit. Then, by opening and closing the opening / closing means, the power supply E flows from the pair of power terminals 28 to the pair of load terminals 29 and is supplied to the illumination load 11, and the illumination load 11 is lit. Further, by closing the opening / closing means, the pair of power terminals 28 are short-circuited, and the power source E capable of lighting the illumination load 11 does not flow from the pair of power terminals 28 to the pair of load terminals 29, and the illumination load 11 Turn off. The control unit 31 also has a timer function.

  Then, when the illuminance detected by the illuminance sensor 22 is equal to or less than the first reference illuminance, the control unit 31 controls the lighting load 11 to continue lighting for a predetermined set lighting time when the human sensor 21 detects a change in the heat source. In addition, the illumination load 11 is provided with a function of turning off the illumination load 11 when the illumination detected by the illumination sensor 22 falls below the second reference illumination during the illumination control while continuing the illumination load 11 for a predetermined set illumination time.

  Furthermore, the control unit 31 controls the lighting load 11 to be turned off because the illuminance detected by the illuminance sensor 22 becomes lower than the second reference illuminance during the lighting control of the lighting load 11 continuously for a predetermined set lighting time. After that, a predetermined standby time is provided with a function not to control the lighting load 11 to light even if the human sensor 21 detects a change in the heat source.

  The first reference illuminance is, for example, about 90 lx. The second reference illuminance is equal to or less than the first reference illuminance, and may be the same as the first reference illuminance.

  Next, control of the illumination load 11 by the control unit 31 will be described with reference to timing charts of FIGS. 4 and 5.

  As shown in FIG. 4, when the illuminance detected by the illuminance sensor 22 is low and equal to or less than the first reference illuminance, a person enters the sensing area of the human sensor 21 and the human sensor 21 changes the heat source When it senses, the lighting load 11 is turned on.

  When a person leaves the sensing area of the human sensor 21, the human sensor 21 no longer senses a change in the heat source, and from that point on, the lighting load 11 is kept on by continuing the preset lighting time set in advance. .

  If the set lighting time has elapsed, the lighting load 11 is turned off.

  In this case, the lighting load 11 continues lighting until the set lighting time elapses, and does not turn off.

  When the lighting load 11 is turned off before the set lighting time elapses, the sensor window 20 is covered with a hand or the like to make it dark.

  As a result, as shown in FIG. 5, the illuminance detected by the illuminance sensor 22 rapidly lowers, and if this low state continues for a predetermined confirmation time (for example, 5 seconds), even if the set lighting time has not elapsed, The lighting load 11 is turned off.

  As described above, when the lighting load 11 is turned off, after the lighting load 11 is turned off, the lighting load 11 is not turned on even when the human sensor 21 detects a change in the heat source for a predetermined standby time. That is, when a person who covers the sensor window 20 by hand moves immediately after the lighting load 11 is turned off, the human sensor 21 detects a change in the heat source, but the lighting load 11 is not turned on by invalidating this. The waiting time is a time during which a person can leave the sensing area of the human sensor 21, and can be set arbitrarily, for example, 5 seconds.

  If the illuminance detected by the illuminance sensor 22 is high and higher than the first reference illuminance, a person enters the sensing area of the human sensor 21 and the human sensor 21 detects a change in the heat source. The lighting load 11 is not lighted.

  As described above, the illumination control switch 10 according to the present embodiment can turn off the illuminated illumination load 11 without waiting for the elapse of a predetermined set illumination time.

  Furthermore, even if the human sensor 21 senses the person by turning off the person who is turned off, the lighting load 11 can be maintained in the off state and the lighting load 11 can be prevented from being turned on again.

  Further, since the human sensor 21, the illuminance sensor 22, and the light emitting display unit 23 are disposed inside the sensor window 20, the human sensor 21, the illuminance sensor 22, and the light emitting display unit 23 can be combined into one circuit board. It becomes possible to mount and the circuit configuration can be simplified.

  Next, control of the light emitting display unit 23 by the control unit 31 will be described with reference to timing charts of FIGS. 6 to 8.

  First, an example of control of the light emitting display unit 23 is shown in FIGS. 6 and 7.

  As shown in FIG. 6, the light emitting display unit 23 is lighted at the same time as the lighting load 11 is lighted. The lighting of the light emitting display unit 23 can be confirmed through the sensor window 20. When the light emitting display unit 23 is turned on, the entire sensor window 20 is illuminated, and it is easy to confirm that the light emitting display unit 23 is turned on.

  When a person is in the sensing area of the human sensor 21 but does not move, the human sensor 21 can not sense a change in the heat source, and therefore, starts measuring the set lighting time from that point. The light emission display unit 23 blinks a little before (for example, several seconds before) the set lighting time is reached, and the light emission display unit 23 is turned off at the same time as the lighting load 11 is turned off.

  Therefore, when the light emitting display unit 23 blinks, it can be grasped that the lighting load 11 is turned off with a slight delay. At this time, when the light emitting display 23 on the inner side of the sensor window 20 blinks, the entire sensor window 20 blinks and looks, so it is easy to grasp the blinking of the light emitting display 23.

  Therefore, as shown in FIG. 7, it is confirmed that the light emitting display unit 23 blinks, and when it is desired to prevent the lighting load 11 from turning off, a person in the sensing area of the human sensor 21 moves. The sensor 21 senses the movement of the heat source, and the lighting time of the lighting load 11 can be extended.

  Further, FIG. 8 shows another example of the control of the light emitting display portion 23.

  The light emitting display unit 23 is normally in the extinguished state, and lights up for a predetermined time at the same time as the lighting load 11 extinguishes.

  When the lighting load 11 is turned off and the surroundings become dark because the person does not move even if the person is in the sensing area of the human sensor 21, the position of the lighting control switch 10 is unknown, but the light emitting display The position of the illumination control switch 10 can be specified by lighting up the unit 23. At this time, when the light emitting display unit 23 inside the sensor window 20 is turned on, the entire sensor window 20 appears to be turned on and it is easy to specify the position of the illumination control switch 10. Therefore, when the person moves according to the position of the lighting control switch 10, the lighting load 11 can be relighted.

  6 and 7 may be used in combination with an example of control of the light emitting display unit 23 and another example of control of the light emitting display unit 23 in FIG. 8 to control the light emitting display unit 23.

  Further, the light emitting display portion 23 is not limited to the case of being installed inside the sensor window 20, and may be provided on the operation surface 18 on the front surface of the switch main body 15.

  While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

10 Lighting control switch
11 Lighting load
20 sensor window
21 Human sensor
22 illuminance sensor
23 Light emitting display
31 Control unit

Claims (3)

A human sensor that senses changes in the heat source;
An illumination sensor that detects ambient illumination;
When the human sensor detects a change in the heat source when the illuminance detected by the illuminance sensor is lower than the first reference illuminance, the lighting load is controlled to continue lighting for a predetermined set lighting time, and the lighting load is controlled to a predetermined level. A control unit that turns off the illumination load when the illumination detected by the illumination sensor falls below the second reference illumination while the illumination is continuously controlled for the set illumination time;
A lighting control switch characterized by comprising. The control unit controls the illumination load to be lower than or equal to a second reference illuminance while the illumination load is controlled to continue the illumination load for a predetermined set illumination time and to control the illumination load to turn off. The lighting control switch according to claim 1, wherein the lighting load is not controlled to light even if the human sensor detects a change in a heat source for a predetermined standby time. A light emitting display unit for light emitting display;
A sensor window in which the human sensor, the illuminance sensor, and the light emitting display unit are disposed;
The light control switch according to claim 1 or 2, further comprising:

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