JP2015005364A - Turn-on device and lighting instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a turn-on device capable of suppressing an unintended turn-on state change, and a lighting instrument.SOLUTION: A turn-on device 100 comprises a turn-on circuit 20, an AC detection circuit 30 and a control circuit 40. The turn-on circuit 20 is connected with a light source module 200 and supplies power to the light source module 200 in accordance with a preset lighting control ratio. The AC detection circuit 30 detects a pull-less operation formed from a combination of an ON period in which a commercial power source is supplied, and an OFF period in which the power source is cut off. The control circuit 40 shifts to a setting mode for setting the lighting control ratio when a predetermined condition is satisfied, and changes a setting value of the lighting control ratio when the pull-less operation is detected after the shift to the setting mode. Since the lighting control ratio is prevented from being changed by the pull-less operation before the shift to the setting mode, when there is power source fluctuation caused by instantaneous outage, an unintended lighting control ratio change can be suppressed.

Description

  The present invention relates to a lighting device and a lighting fixture.

  Conventionally, for example, as disclosed in Japanese Patent Application Laid-Open No. 2005-285725, there is known a lighting device that can change the brightness of a luminaire step by step by a so-called pullless operation. The pullless operation generally refers to an operation to switch the power switch on and off in a short time.

JP 2005-285725 A JP 2010-20972 A JP 2013-37766 A

  However, in the above conventional technique, the lighting state is uniformly changed by turning on and off the power. When the cause of the on / off of the power source is not a user's intentional pullless operation but an instantaneous power failure, the lighting state is unnecessarily changed even during this instantaneous power failure.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a lighting device and a lighting fixture that can suppress unintended changes in lighting state.

The lighting device according to the present invention is
A lighting circuit connected to the light source module and supplying power to the light source module according to the set dimming ratio;
A pullless operation detection circuit for detecting a pullless operation comprising a combination of an on period in which commercial power is supplied and an off period in which the commercial power is cut off;
A control circuit that shifts to a setting mode for setting the dimming ratio when a predetermined condition is satisfied, and that changes a setting value of the dimming ratio when the pullless operation detection circuit detects the pullless operation after the transition to the setting mode; ,
It is characterized by providing.

The lighting apparatus according to the present invention is
A light source module;
A lighting device connected to the light source module;
A power switch interposed between the lighting device and a commercial power source;
With
The lighting device is
A lighting circuit for supplying power to the light source module according to a set dimming ratio;
A pullless operation detection circuit for detecting a pullless operation comprising a combination of an on period in which the commercial power is supplied and an off period in which the commercial power is shut off;
A control circuit that shifts to a setting mode for setting the dimming ratio when a predetermined condition is satisfied, and that changes a setting value of the dimming ratio when the pullless operation detection circuit detects the pullless operation after the transition to the setting mode; ,
It is characterized by providing.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that the lighting state change which is not intended when there is a power supply fluctuation by instantaneous power failure occurs.

It is a disassembled perspective view of the lighting fixture concerning Embodiment 1 of this invention. It is a circuit diagram for demonstrating the structure of the lighting device and lighting fixture concerning Embodiment 1 of this invention. It is a flowchart of the routine which a control circuit performs in the lighting device concerning Embodiment 1 of this invention. It is a time chart for demonstrating operation | movement of the lighting device concerning Embodiment 1 of this invention. It is a time chart for demonstrating operation | movement of the lighting device concerning Embodiment 1 of this invention. It is a flowchart of the routine which a control circuit performs in the lighting device concerning Embodiment 2 of this invention. It is a flowchart of the routine which a control circuit performs in the lighting device concerning Embodiment 3 of this invention.

Embodiment 1 FIG.
[Configuration of Apparatus of Embodiment]
FIG. 1 is an exploded perspective view of a lighting fixture 1000 according to the first embodiment of the present invention. The luminaire 1000 is connected to a wall switch SW (not shown in FIG. 1). The lighting fixture 1000 includes a fixture main body 1001 and a lamp 1002. The appliance main body 1001 includes a lighting device 100. The lamp 1002 includes a light source module 200 (not shown in FIG. 1). The wall switch SW is a power switch for turning on / off the lighting device 1000 to turn on / off the supply of commercial power to the lighting device 1000. Since the connection structure between the wall switch SW and the power source and the lighting fixture 1000 is general and is not a new matter, the description thereof is omitted here.

  The wall switch SW is connected to the lighting fixture 1000 via a power line. The lighting fixture 1000 is obtained by mounting the light source module 200 on the lighting device 100. The lighting device 100 is connected to a commercial power source, and the lighting device 100 lights the light source module 200. A plurality of lighting fixtures 1000 may be turned on / off by a common wall switch SW, and in this case, a single lighting system is configured.

  FIG. 2 is a circuit diagram for explaining the configuration of the lighting device 100 and the lighting fixture 1000 according to the first embodiment of the present invention. FIG. 2 illustrates a lighting fixture 1000 including a lighting device 100 connected to an AC power source AC that is a commercial power source, and a light source module 200 that is lit by power supplied from the lighting device 100. A wall switch SW for turning on and off the electrical connection is provided between the AC power supply AC and the lighting device 100.

  The lighting device 100 includes a diode bridge DB, a boost chopper circuit 10, a lighting circuit 20, an AC detection circuit 30, a control circuit (CPU) 40, and a control power supply circuit 50. The diode bridge DB rectifies the input AC voltage. The boost chopper circuit 10 boosts the output voltage of the diode bridge DB.

  The lighting circuit 20 converts the boosted voltage of the boost chopper circuit 10 into electric power that matches the light source module 200. The AC detection circuit 30 is connected to the diode bridge DB and detects that the AC power supply AC is supplied. The control circuit 40 is connected to the AC detection circuit 30 and the lighting circuit 20 (specifically, the lighting control circuit 21), and controls the power supplied from the lighting circuit 20 to the light source module 200.

  The control power supply circuit 50 is connected to the output of the boost chopper circuit 10 and supplies the control power supply Vcc to the boost chopper circuit 10, the lighting circuit 20, and the control circuit 40.

  The step-up chopper circuit 10 includes a series circuit of an inductor L1 and a diode D1, one end of which is connected to the output of the diode bridge DB. The step-up chopper circuit 10 includes resistors R1 and R2 that divide and detect the output waveform of the diode bridge DB.

  The step-up chopper circuit 10 includes a MOS-FET (MOS field effect transistor) Q1, a resistor R3 for detecting a current flowing through the MOS-FET Q1, an electrolytic capacitor C1, and a PFC control circuit 11. The PFC control circuit 11 controls the switching of the MOS-FET Q1 based on the detection voltage of the resistors R1 and R2 and the detection current of the resistor R3.

  The lighting circuit 20 includes a MOS-FET Q2 whose drain is connected to the cathode of the diode D1, and an inductor L2 whose one end is connected to the source of the MOS-FET Q2. The other end of the inductor L2 is connected to an output terminal to be connected to the light source module 200.

  The cathode of the diode D2 is connected between the MOS-FET Q2 and the inductor L2, and the anode of the diode D2 is connected to the ground. The capacitor C2 is provided in parallel with the light source module 200 when connected. The resistor R5 detects a current flowing through the light source module 200. The lighting control circuit 21 controls the switching of the MOS-FET Q2.

  The AC detection circuit 30 includes a diode D3 and resistors R6 and R7 connected in series. The anode of the diode D3 is connected between the diode bridge DB and the inductor L1. Resistors R6 and R7 are sequentially connected in series to the cathode of the diode D3. Resistors R6 and R7 divide the voltage input via the diode D3.

  The divided voltage is output as a detection signal for determining whether or not the AC power supply AC is supplied. Since the presence or absence of supply of the AC power supply AC is switched in a short period when the wall switch SW is pulled, the pullless operation can be detected based on this detection signal.

  The so-called “pullless operation” is an operation composed of a combination of an on period in which the AC power supply AC is supplied and an off period in which the AC power supply AC is cut off. Specifically, the pullless operation of the present embodiment refers to operating the wall switch SW in a short time from power on → off → on.

  The control circuit 40 is composed of, for example, a microcomputer. The control circuit 40 can receive the voltage divided by the resistors R6 and R7, that is, the detection signal output from the AC detection circuit 30. The control circuit 40 can determine whether or not the AC power supply AC is supplied from the detection signal output from the AC detection circuit 30.

  The control power supply circuit 50 generates the control power supply Vcc1 from the output of the boost chopper circuit 10. The control power supply circuit 50 is connected to the PFC control circuit 11 of the step-up chopper circuit 10, the lighting control circuit 21 of the lighting circuit 20, and the control circuit 40, and supplies the control power supply Vcc1 as a power supply for operating these. Can do.

  In the present embodiment, the case where the control power supply Vcc1 is generated from the output of the boost chopper circuit 10 will be described. However, the present invention is not limited to this. For example, the control power supply Vcc may be generated from the output of the diode bridge DB.

  The light source module 200 includes a plurality of semiconductor light emitting elements LEDa connected in series. In this embodiment, the case where the number of semiconductor light emitting elements LEDa connected in series is five will be described. However, the present invention is not limited to this, and any semiconductor light emitting element LEDa may be connected in series. LEDa may be connected in parallel. Further, the light emission color of the semiconductor light emitting element LEDa of the light source module 200 may be a color temperature such as 3500K in addition to white of 5000K.

  The operation of the lighting device 100 will be described. The lighting circuit 20 determines a current to be supplied to the light source module 200 based on the control signal output from the control circuit 40. The current flowing through the light source module 200 is equal to the current flowing through the resistor R5. For this reason, the lighting control circuit 21 detects the current flowing through the resistor R5 (or the voltage generated at the resistor R5) and controls the on-duty ratio of the MOS-FET Q2, thereby supplying the target current to the light source module 200. Control to supply. In this way, the brightness of the light source module 200 is changed.

  Next, the operation of the control circuit 40 will be described. FIG. 3 is a flowchart of a routine executed by the control circuit 40 in the lighting device 100 according to the first embodiment of the present invention.

The control circuit 40 has a pullless time counter. The “pullless time counter” is a counter for counting the pullless operation time. The pullless operation time means a time (output stop time) during which the AC detection circuit 30 detects that the supply of the AC power supply AC is cut off.
The control circuit 40 may further include a “cumulative lighting time counter” for counting the cumulative lighting time of the light source module 200.

  If the pullless operation time is a predetermined short period, it can be determined that there has been an intentional on, off, on, that is, pullless operation. That is, in the present embodiment, the presence or absence of the pullless operation is detected by monitoring the on / off operation of the commercial power supply generated as a result of the operation of the wall switch SW, rather than monitoring the operation of the wall switch SW itself.

  Next, the operation of the control circuit 40 will be described using the flowchart of FIG. First, the control circuit 40 detects the presence or absence of a pullless operation of a predetermined wall switch (step S1). The pullless operation of the present embodiment means that the wall switch SW is operated from on to off to on in a short time. Hereinafter, an operation for switching between on and off may be abbreviated as an “on / off operation”. If no pullless operation is detected, the current routine ends.

  When it is detected in step S1 that an on / off operation (pullless operation) has been performed, the lighting circuit 20 shifts to a setting mode (step S2).

  When shifting to the setting mode, the control circuit 40 detects again the presence / absence of an on / off operation (pullless operation) (step S3). That is, the presence / absence of the first pullless operation after the transition to the setting mode is detected. When the control circuit 40 is in the setting mode and a certain time (for example, 1 minute) elapses, the control circuit 40 lights up with the brightness set before the setting mode transition, and the current routine ends, and the normal operation is started from the setting mode. Return to mode.

  If there is an on / off operation (pullless operation) in step S3, then whether or not there is a further on / off operation (pullless operation), that is, a second on / off operation (pullless operation) after transition to the setting mode. Is detected (step S4). When there is no second pullless operation after the transition to the setting mode, the dimming ratio is set to a value of 85%, and the control circuit 40 adjusts the control signal to the lighting control circuit 21 according to the setting ( Step S5). Thereafter, the current routine ends, and the setting mode returns to the normal mode.

  If there is an on / off operation (pullless operation) in step S4, then whether or not there has been a further on / off operation (pullless operation), that is, the third on / off operation (pullless operation) after entering the setting mode. Is detected (step S6). When there is no third pullless operation after transition to the setting mode, the dimming ratio is set to a value of 75% output ratio, and the control circuit 40 adjusts the control signal to the lighting control circuit 21 according to the setting ( Step S7). Thereafter, the current routine ends, and the setting mode returns to the normal mode.

  If there is an on / off operation (pullless operation) in step S6, whether or not there has been a further on / off operation (pullless operation), that is, a fourth on / off operation (pullless operation) after shifting to the setting mode. Is detected (step S8). When there is no fourth pullless operation after the transition to the setting mode, the dimming ratio is set to a value of 50%, and the control circuit 40 adjusts the control signal to the lighting control circuit 21 according to the setting ( Step S9). Thereafter, the current routine ends, and the setting mode returns to the normal mode.

  If there is an on / off operation (pullless operation) in step S8, whether or not there has been a further on / off operation (pullless operation), that is, a fifth on / off operation (pullless operation) after shifting to the setting mode. Is detected (step S10). If there is no fifth pullless operation after the transition to the setting mode, the dimming ratio is set to a value of 25%, and the control circuit 40 adjusts the control signal to the lighting control circuit 21 according to the setting ( Step S11). Thereafter, the current routine ends, and the setting mode returns to the normal mode.

  If there is an on / off operation (pullless operation) in step S10, the dimming ratio is set to a value of 10%, and the control circuit 40 adjusts the control signal to the lighting control circuit 21 according to the setting. (Step S12). Thereafter, the current routine ends, and the setting mode returns to the normal mode.

  As described above, according to the present embodiment, the dimming ratio is not changed by the pullless operation unless the mode is shifted to the setting mode. For this reason, the dimming ratio is not changed by the on / off operation in step S1 that has not shifted to the setting mode. Accordingly, it is possible to suppress an unintended dimming ratio change when there is a power supply fluctuation due to an instantaneous power failure.

  FIG. 4 is a time chart for explaining the operation of the lighting device according to the first embodiment of the present invention. FIG. 4 is a time chart showing a power on / off operation according to a pullless operation for shifting from the normal lighting state to the setting mode in the first embodiment of the present invention and in the second embodiment to be described later. . When the commercial power source turns from on to off and then from off to on, it is determined that a pullless operation has occurred.

  The time Tset in FIG. 4 is the time from turning off the commercial power supply to turning it on. This time Tset corresponds to the pullless operation time described above.

  In FIG. 4, it is determined that the pullless operation is performed when it is detected that the time Tset from turning off the commercial power source to turning it on is within a range of 500 ms (milliseconds) to 2000 ms. When Tset is less than 500 ms, it is regarded as an instantaneous power failure and the pullless operation is invalid. When Tset exceeds 2000 ms, it is regarded as a normal power on / off operation, and the pullless operation is invalidated.

  FIG. 5 is a time chart for explaining the operation of the lighting device according to the first embodiment of the present invention. FIG. 5 is a time chart showing a power on / off operation according to a pullless operation for changing the output ratio in the first embodiment of the present invention and the second embodiment described later. FIG. 5 is also a pullless operation for shifting from the normal lighting state to the setting mode in Embodiment 3 to be described later.

  Tmode in FIG. 5 is a time until the commercial power source is switched from off to on after the commercial power source is switched from on to off. This Tmode also corresponds to the pullless operation time described above.

  Only when it is detected that this Tmode is in the range of 500 ms or more and 3000 ms or less, the output ratio is changed and the transition to the setting mode in the third embodiment is performed. When Tmode is less than 500 ms, it is regarded as an instantaneous power failure and the pullless operation is invalidated. When Tmode exceeds 3000 ms, it is regarded as a normal power on / off operation, and the pullless operation is invalidated.

Embodiment 2. FIG.
The lighting fixture and the lighting device according to the second embodiment have the same hardware configuration as that of the first embodiment. However, the control contents executed by the control circuit 40 are different. In the following description, this difference will be mainly described, and the same components as those in the first embodiment will be denoted by the same reference numerals, and the description common to the first embodiment will be simplified or omitted.

  FIG. 6 is a flowchart of a routine executed by the control circuit 40 in the lighting device 100 according to the second embodiment of the present invention. Processing steps similar to those in the flowchart of FIG. 3 are denoted by the same reference numerals.

  First, the pullless operation is detected as in FIG. 3 (step S1).

  Next, in the second embodiment, the control circuit 40 executes processing for determining whether the time for switching the wall switch SW from OFF to ON is within the range of 0.5 seconds to 2.0 seconds (step S20). ).

  If the condition of step S2 is satisfied (YES), the process proceeds to the setting mode (step S2). On the other hand, if the condition in step S2 is not satisfied (NO), the current routine is terminated.

  In the second embodiment, when the transition from the normal lighting operation to the setting mode is performed, the control circuit 40 causes the lighting control circuit to have a brightness different from that of the normal lighting operation in order to notify that the setting mode has been entered. A control signal is sent to 21. For example, when the brightness (dimming degree) during normal lighting operation is 80%, the brightness (dimming degree) in the setting mode is set to 50%. Thereby, it can be notified to the user that it is in the setting mode.

  When in the setting mode, the set value of brightness (dimming degree) during normal lighting operation is changed according to the number of times the pullless operation is performed. This point is the same as the routine of FIG. 3 of the first embodiment.

  That is, when the pullless operation is once after the transition to the setting mode, “Yes” is set in Step S3, and “No” is set in Step S4, and the output ratio during the normal lighting operation is set to 85% (Step S5).

  When the pullless operation after the transition to the setting mode is performed twice, “Yes” is set in Step S4 and “No” is set in Step S6, and the output ratio during the normal lighting operation is set to 75% (Step S7).

  When the pullless operation after the transition to the setting mode is performed three times, “Yes” is set in Step S6, “No” is set in Step S8, and the output ratio during the normal lighting operation is set to 50% (Step S10).

  When the pullless operation after the transition to the setting mode is four times, “Yes” is set in Step S8 and “No” is set in Step S10, and the output ratio during normal lighting operation is set to 25% (Step S11).

  When the pullless operation after the transition to the setting mode is five times, “Yes” is set in Step S10, and the output ratio during normal lighting operation is set to 10% (Step S12).

  According to the second embodiment, since the user is notified of the transition to the setting mode, the pullless operation can be performed while the user is consciously switched to the setting mode. During the setting mode, it is not necessary to consider that the output ratio is switched during normal lighting operation due to instantaneous power failure during pullless operation.

  If the output ratio is changed in the setting mode, even if an instantaneous power failure occurs and the output ratio changes, the desired dimming ratio can be set by increasing the number of pullless operations. it can. Since this is not an unintended output ratio change in a normal use state, the user is not uncomfortable.

  In this embodiment, the case where the pullless operation for switching from the normal lighting state to the setting mode is set to one time and the time for switching from OFF to ON is between 0.5 s and 2.0 s has been described. The present invention is not limited to this. For example, when the pullless operation is performed three times, the normal lighting state may be switched to the setting mode, so that the user can more consciously switch from the normal lighting state to the setting mode.

Embodiment 3 FIG.
The lighting fixture and the lighting device according to the third embodiment have the same hardware configuration as in the first and second embodiments. However, the control contents executed by the control circuit 40 are different. In the following description, this difference will be mainly described, and the same components as those in the first and second embodiments will be denoted by the same reference numerals, and the description common to the first and second embodiments will be simplified or omitted. To do.

  FIG. 7 is a flowchart of a routine executed by the control circuit 40 in the lighting device 100 according to the third embodiment of the present invention. Processing steps similar to those in the flowcharts of FIGS. 3 and 6 are denoted by the same reference numerals.

  As in the routines of FIGS. 3 and 6, when the pullless operation is detected (step S1), the mode shifts to the setting mode (step S2).

  It is determined whether or not 1 second has elapsed since the transition to the setting mode without pullless operation (step S21). In step S21, when 1 second has not elapsed since entering the setting mode, the process returns to step S3, and when 1 second has elapsed since entering the setting mode, the setting mode is canceled (step S22). ). Thereafter, the current routine ends.

  The subsequent processing is the same as the routines of FIGS.

  According to the third embodiment, the OFF → ON determination time during the pullless operation in step S1 is shortened. As a result, even if the setting mode is unintentionally caused by an instantaneous power failure, it is possible to prevent the dimming ratio of the normal lighting state from being changed unintentionally at the time of power recovery. It is possible to return to the state.

  Patent Document 2 discloses a function that allows the user to select brightness by changing the dimming ratio at predetermined time intervals after switching to the dimming ratio setting mode by a predetermined operation switch on / off operation. A lighting device is described.

  However, the lighting device described in Patent Document 2 automatically changes the brightness step by step in the dimming ratio setting mode, and when the desired brightness is reached, the user operates the wall switch to set the brightness. To do. For this reason, when the dimming lighting state is determined by the on / off operation of the switch, it takes time to determine the dimming lighting state.

  In addition, the lighting device described in Patent Document 2 does not return to 100% brightness unless the lighting state changes once. For this reason, when the setting for obtaining the desired brightness has passed, it is necessary to wait until the change of the lighting state is completed. As a result, there is a problem that setting takes time.

  In this regard, according to the lighting device and the lighting fixture according to the first to third embodiments, the specific dimming ratio can be quickly determined according to the number of pullless operations after the transition to the setting mode. Therefore, the problem that a long time is required as in the technique according to Patent Document 2 can be solved.

10 boost chopper circuit, 11 PFC control circuit, 20 lighting circuit, 21 lighting control circuit, 30 AC detection circuit, 40 control circuit, 50 control power supply circuit, 100 lighting device, 200 light source module, 1000 lighting fixture, SW wall switch.

Claims (6)

A lighting circuit connected to the light source module and supplying power to the light source module according to the set dimming ratio;
A pullless operation detection circuit for detecting a pullless operation comprising a combination of an on period in which commercial power is supplied and an off period in which the commercial power is cut off;
A control circuit that shifts to a setting mode for setting the dimming ratio when a predetermined condition is satisfied, and that changes a setting value of the dimming ratio when the pullless operation detection circuit detects the pullless operation after the transition to the setting mode; ,
A lighting device comprising:   The lighting device according to claim 1, wherein a user is notified that there has been a transition to the setting mode. The control circuit includes:
When changing to the setting mode, the brightness of the light source module is changed to a different brightness from that before changing, thereby notifying the user that the setting mode has been changed. The lighting device according to claim 2.   4. The lighting device according to claim 1, wherein after the transition to the setting mode, when a predetermined time elapses without detecting the pullless operation, the lighting device returns from the setting mode. 5. A light source module;
A lighting device connected to the light source module;
A power switch interposed between the lighting device and a commercial power source;
With
The lighting device is
A lighting circuit for supplying power to the light source module according to a set dimming ratio;
A pullless operation detection circuit for detecting a pullless operation comprising a combination of an on period in which the commercial power is supplied and an off period in which the commercial power is shut off;
A control circuit that shifts to a setting mode for setting the dimming ratio when a predetermined condition is satisfied, and that changes a setting value of the dimming ratio when the pullless operation detection circuit detects the pullless operation after the transition to the setting mode; ,
A lighting apparatus comprising: A plurality of the light source modules;
The lighting apparatus according to claim 5, wherein on / off of the plurality of light source modules is controlled by the power switch.

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