JP2009123507A - Luminaire and illumination apparatus using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to freely select a lighting load, and allow lighting control in accordance with respective load characteristics by doing without needs for the user to set an illumination device in accordance with the light loads, in a lighting fixture controlling lighting loads by a switching element capable of carrying out phase control. <P>SOLUTION: In the illumination device controlling lighting of lighting loads 1 by a trigger signal sent from a load control part 5 to a switching element (a load driving part 3) in any conductive angle with receipt of an output of a power source phase detecting part 4, the load control part 5 is equipped with a determination part 5a putting ON the switching element at a phase of the conductive angle of a commercial power source AC allowing lighting only an optional lighting load (for instance, an incandescent lamp) during a given period after inputting of the power source, and determining kinds of the lighting loads 1 by detecting lighting or non-lighting of the lighting load 1 during that period by a load lighting detecting part 8 and changes over to a given operation mode corresponding to the kind of the lighting load 1 in accordance with the determination result. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lighting device for using in combination a resistive load such as an incandescent lamp, a capacitive load such as a bulb-type fluorescent lamp, an inductive load, and the like, and a lighting fixture using the lighting device. It is.

  In recent years, luminaires equipped with human body detection sensors for detecting and lighting people and illuminance sensors for controlling lighting with ambient brightness for power saving and crime prevention purposes have been installed outdoors and on the side of ordinary houses. It has become widespread (Figure 18). Incandescent lamps that can be configured in a simpler and cheaper manner are often used in combination with lighting fixtures outside such living spaces, but incandescent lamps have poor energy conversion efficiency from electricity to light, and there are no people In the case of lighting, it is often dimmed to save power.

  FIG. 19 shows a configuration example of a sensor-equipped lighting fixture having an incandescent lamp dimming function used on the shop side. The lighting fixture 20 includes a cover 21 made of a translucent material, a cover packing 22 for waterproofing, a lamp 23 and a flange 24 for supporting them, and a socket 25 for the lighting load 1. The flange 24 includes a lighting device for controlling lighting lighting, and an infrared sensor for lighting a lighting load 1 by sensing a person's movement in the lower portion and lighting control with ambient illuminance. The sensor unit 26 in which the illuminance sensor is incorporated is exposed, and the change is read by the load control unit inside the lighting device.

  For example, if the value read by the illuminance sensor is equivalent to daytime, the lighting load is turned off regardless of the presence or absence of a person, and when the surrounding illuminance becomes arbitrarily dark, the incandescent lamp is dimmed at 30%, Furthermore, if a human movement is detected by the infrared sensor in this state, the incandescent lamp is turned on 100%. Furthermore, when it is determined that it is midnight after an arbitrary time, the lighting device is provided with a function of turning off the lighting again and turning on the lighting only when there is a person.

  Next, FIG. 20 shows a configuration example of a dimming control circuit using a switching element used in such a lighting fixture. A specific circuit example is shown in FIG. The circuit configuration of FIG. 21 will be described in detail in the description of FIG. 8 described later. Based on the power supply phase signal detected by the power supply phase detection unit 4, the load control unit 5 outputs a trigger signal at a predetermined phase angle. The lighting load 1 is driven by the commercial AC power supply AC by controlling the phase of the load driving unit 3 configured using a switching element such as the triac element TR.

  Operations of the load control unit 5 and the load driving unit 3 when the triac element TR is turned on will be described with reference to FIG. The load control unit 5 always keeps the output to the load driving unit 3 at the H level when the lighting load 1 is not turned on. When the triac element TR is turned on, that is, when the lighting load 1 is turned on, the timing after a predetermined phase time T1 (for example, 9 milliseconds) from the timing when the output of the power supply phase detector 4 is inverted from the H level to the L level. To the timing after pulse time T2 (for example, 500 microseconds), the trigger waveform is set to the L level in a pulse shape. As a result, the transistor Q2 of the load driving unit 3 is turned on, and the triac element TR is turned on when a trigger current flows. Immediately after this turn-on, a sinusoidal current flows through the illumination load 1 composed of an incandescent bulb as a resistance load.

  At this time, the light control can be performed by controlling the times T1 and T2 by the load controller 5. For example, when T1 is gradually shortened and T2 is prolonged, the effective value of the input current of the incandescent lamp, which is a resistive lighting load, increases in proportion thereto. As a result, the lighting load is dimmed toward 0 to 100% brightness.

  FIG. 23 shows a configuration example when a sensor function is added to this. In this case, the basic operation regarding lighting of the illumination load 1 is as described above, but the sensor unit 7 is connected to the load control unit 5, and the load control unit 5 includes the lighting condition setting unit and the sensor. Based on the logical sum and logical product of the sensor signals obtained from the unit 7, it is determined at what timing and how the lighting load 1 is lit.

In luminaires used outdoors and on the side of the house, lighting devices that use switching elements such as incandescent lamps and triac elements that can be dimmed and controlled with such resistive lighting loads are often used in combination with sensors. However, in recent years, in a society where power saving is demanded, lighting fixtures using fluorescent lamps having higher energy conversion efficiency and longer life than incandescent lamps are increasing. In fact, in such a background, an illumination load (see FIG. 17) has been developed that can be equalized with an incandescent lamp in size and shape, and can be directly mounted on an incandescent lamp socket, such as a bulb-type fluorescent lamp. ing. For example, Patent Documents 1 and 2 disclose an illumination device that controls the phase of a bulb-type fluorescent lamp.
JP-A-11-135290 JP-A-11-111486

  However, when a resistive load (for example, an incandescent lamp) to be dimmed is replaced with a capacitive load (for example, a bulb-type fluorescent lamp) as it is, if the phase control as described above is performed, However, there is a problem that the lighting start time of the incandescent lamp differs from the lighting start time of the light bulb type fluorescent lamp. This is because incandescent lamps have an input current that flows in proportion to the input voltage. On the other hand, a capacitive load such as a bulb-type fluorescent lamp flows an input current unless it reaches a certain input voltage. This is due to the characteristic that there is no lighting, that is, no lighting.

  Next, FIG. 24 shows a basic configuration example of a light bulb type fluorescent lamp represented by a capacitive load. Inverter circuit IV that includes a rectifier circuit unit composed of a diode bridge DB or the like in the power input unit and an electrolytic capacitor Ci for smoothing the rectified output, and lights the fluorescent lamp FL by the energy stored in the electrolytic capacitor Ci. Consists of Further, the relationship between the input voltage and the input current has a waveform as shown in FIG. 25. When the voltage Vci across the electrolytic capacitor Ci becomes a predetermined voltage, the input current flows (see Patent Document 1).

  FIG. 26 shows the relationship between the input voltage and the lighting state when lighting control is performed on a capacitive load, for example, a light bulb type fluorescent lamp, in the lighting device in which the above-described resistive load is dimmed. The trigger signal in this figure is a waveform in the case of dimming lighting so as to increase from 0% to 100% lighting in the case of an incandescent lamp. At the falling position where the trigger signal changes from H level to L level, the phase of the power supply voltage is shifted from point f (near 180 °) to point e (0 ° side). In the case of a bulb-type fluorescent lamp, even if the trigger signal is applied at a position where the current of the trigger signal falls at a position where no current flows to the bulb-type fluorescent lamp, that is, at a position where the power supply voltage is low, Can not. The lighting state is the time when the falling phase of the trigger signal is shifted to the voltage position (g point) at which the bulb-type fluorescent lamp can be lit by the dimming control.

  Since such a phenomenon exists, for example, assuming that a bulb-type fluorescent lamp can be lit at a phase of 70 °, and the falling phase of the trigger signal is automatically shifted in increments of 2 °, an input with a period of 60 Hz Even if the phase is shifted every half cycle (120 Hz) of the voltage, the light is turned on after 35 cycles of 8.3 ms, that is, with a delay of about 0.3 s. At this time, for example, in a lighting fixture with an infrared sensor, if a person is moving at 5 m / s, even if a trigger signal is applied by detecting the person, the lamp is turned on after traveling about 1.5 m As a result, the user will feel a delay in lighting compared to the incandescent lamp.

  Actually, from the relationship between the electrolytic capacitor Ci and the input voltage, when the trigger signal is applied at a phase where the voltage Vci is higher than a predetermined voltage after the phase of the power supply voltage is 90 ° or more, the inverter circuit IV Although it operates instantaneously, the voltage Vci immediately decreases, so that the electrolytic capacitor Ci is not charged, and a flicker phenomenon may occur. For this reason, for example, in the lighting mode in which dimming is continued at a certain level, there is a possibility that a dimming lamp is lit with an incandescent lamp, but a flickering is repeated with a light bulb type fluorescent lamp.

  Therefore, in general, for such a phenomenon, each lighting device is set to a dedicated control method or a switch is provided to switch for each load used by the user. It copes with such problems due to load differences. However, when such a countermeasure is used, the provision of the switch unit in the lighting device causes a problem that the arrangement of the lighting device inside the fixture is restricted and the configuration of the lighting fixture becomes complicated. Also, in recent years, for example, if a lighting load using LEDs is a lighting load, whether it is a resistive load or a capacitive load may not be apparent from the appearance, and the user does not know it. It is also very difficult to determine.

  The present invention has been made in view of the above points, and an object of the present invention is to enable a user to freely select a lighting load in a lighting fixture that controls lighting of a lighting load by a switching element. An object of the present invention is to provide an illuminating device and a luminaire capable of performing lighting control in accordance with each load characteristic without having to set the illuminating device in consideration of the illumination load.

  In order to solve the above-mentioned problem, the invention of claim 1 is a switching element (load driving unit 3) for turning on / off a commercial power supply AC supplied as a power source of the lighting load 1, as shown in FIG. A power supply phase detector 4 for detecting the phase of the commercial power supply AC for phase control of the illumination load 1 and a load controller 5 for receiving the output of the power supply phase detector 4 and determining the conduction angle of the switching element are provided. In a lighting device that controls lighting of the lighting load 1 with a signal transmitted from the control unit 5 to the switching element at an arbitrary conduction angle, a load lighting detection unit 8 that detects whether the lighting load 1 is turned on, and a load lighting detection unit 8 The load control unit 5 determines the conduction angle of the commercial power supply AC for an arbitrary lighting load (for example, incandescent light) for a predetermined period after the power is turned on. Light) The switching element is turned on at a phase that does not light, and the operation mode (for example, dimming mode or ON / OFF mode) according to the type of the lighting load 1 is switched according to the result determined in that period. is there.

  According to a second aspect of the present invention, in the first aspect of the invention, the signal transmitted from the load control unit 5 to the switching element at an arbitrary conduction angle is a timing at which the commercial power supply rises from 0 V in the section in which the lighting load 1 is turned on. The phase is swept between a phase angle of 0 ° and a phase angle of 180 ° (FIG. 4).

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the switching element is a triac element TR, and a signal transmitted from the load control unit 5 to the switching element at an arbitrary conduction angle has an arbitrary width T5. It is characterized by a fixed pulse waveform (FIG. 6).

  According to a fourth aspect of the present invention, in the first to third aspects of the present invention, as shown in FIGS. 7 and 8, the load lighting detection unit 8 that detects the presence or absence of lighting of the lighting load 1 includes the lighting load 1 and the commercial power supply AC. The presence or absence of lighting is detected by the current value of the inductance element Lf of the high frequency filter circuit 2 connected in series between the two.

  The invention of claim 5 includes the illuminance sensor 7A for detecting ambient brightness in the inventions of claims 1 to 3, and the load control unit 5 illuminates a load according to the ambient illuminance detected by the illuminance sensor 7A. 1 has a function of controlling lighting of the lighting load 1 with a switching element, and the load lighting detection unit 8 detects whether the lighting load 1 is turned on by detecting a change in the visible light output emitted from the lighting load 1 with the illuminance sensor 7A. (FIGS. 10 to 12).

  The invention of claim 6 is provided with an infrared sensor 7B for detecting a person in the inventions of claims 1 to 3, and when the load control unit 5 determines that a person has been detected, the lighting load 1 is turned on by a switching element. The load lighting detection unit 8 has a function of controlling, and detects whether the lighting load 1 is turned on or not by detecting an output change of the amount of infrared rays emitted from the lighting load 1 by the infrared sensor 7B ( FIG. 13 and FIG. 14).

  According to a seventh aspect of the present invention, in the first to sixth aspects of the invention, in a state where the operation mode is determined, the signal from the load lighting detection unit is always checked, and the output of the load lighting detection unit is turned on in the lighting operation mode. When it is determined that the state is different from the presence or absence, the transmission of the lighting signal is stopped and the type of the illumination load is re-determined.

  The invention of claim 8 has a no-load detection unit 10 for detecting that the illumination load 1 is in an unloaded state during power supply energization in the inventions of claims 1 to 7, and lights up when no load is detected. The transmission of the signal is stopped, and the type of the illumination load 1 is discriminated again when the load is detected (FIG. 15).

  According to a ninth aspect of the present invention, in the first to eighth aspects of the invention, the number of lighting loads 1 obtained from the signal count of the load lighting detection unit 8 and the accumulation of the lighting loads 1 obtained from the signal length of the load lighting detection unit 8 When the storage unit 11 for storing either or both of the lighting times is stored and the stored value reaches an arbitrary set value (for example, a lifetime value) according to the type of the illumination load 1 determined earlier, A desired operation (for example, status display by the load status display unit 12) is performed (FIG. 16).

  A tenth aspect of the present invention is a lighting fixture comprising the lighting device according to any one of the first to ninth aspects and a lighting load socket 25 of an E base (FIGS. 12, 14, and 14). FIG. 19).

  According to the first aspect of the present invention, the switching element is turned on for a predetermined period after the power is turned on at a phase where the conduction angle of the commercial power supply is turned on only at an arbitrary lighting load, and the lighting load is determined according to the result determined in that period. Since the operation mode is switched to the predetermined operation mode according to the type of the light source, it is possible to avoid problems such as flicker and lighting delay due to the difference in characteristics of the illumination load. As a result, it is possible to provide a lighting device that is not affected by the difference in load characteristics, and the user does not need to set it consciously and can freely select a lighting load.

  According to the invention of claim 2, in addition to determining the type of load, it is possible to determine no load or load abnormality. Furthermore, when it is determined that there is no load or load abnormality, it is possible to save power by eliminating signals to unnecessary switching elements, and it is possible to eliminate unnecessary voltage application to the lighting load.

  According to the third aspect of the invention, it is possible to save power by sending a necessary minimum signal.

  According to the fourth aspect of the present invention, it is possible to reduce the number of parts of the load lighting detection unit by detecting whether or not the lighting load is turned on by the current flowing through the inductance element for the high frequency filter.

  According to the invention of claim 5, it is possible to reduce the parts of the load lighting detection unit by detecting whether or not the lighting load is turned on using the illuminance sensor of the lighting fixture with the brightness sensor.

  According to the sixth aspect of the present invention, it is possible to reduce the number of parts of the load lighting detection unit by detecting whether or not the lighting load is turned on by using the infrared sensor of the lighting fixture with a human sensor.

  According to the invention of claim 7, even when the illumination load is replaced during energization, the operation mode can be automatically switched.

  According to the invention of claim 8, even when the illumination load is replaced during energization, the operation mode can be automatically switched, and when it is determined that there is no load, the signal to the unnecessary switching element is eliminated. Can save electricity.

  According to the invention of claim 9, using the signal of the load lighting detection unit, for example, by adding the lighting load life notification to the user, such as notifying the user of the lighting load life notification by counting the lighting time. Function can be installed.

  According to the invention of claim 10, since the E base shape has a substantially spherical or substantially cylindrical illumination load shape that is easy to rotate for attachment to a lighting fixture, even different types of illumination loads are similar. Therefore, when sharing various lighting loads is considered, it is easy to design a lighting fixture including the lighting device.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
A configuration example of the illumination device of the present embodiment is shown in FIG. Although the basic configuration and operation are the same as those of the conventional example of FIG. The difference is that it is configured to.

  Reference numeral 1 denotes an illumination load, for example, a resistive load such as a relatively small incandescent bulb in which a light distribution reflective film is formed by vapor deposition of silver on a bulb. In addition, instead of an incandescent bulb, a capacitive load such as a bulb-type fluorescent lamp may be connected.

  Reference numeral 2 denotes a filter unit, which is composed of a capacitor and a coil in order to remove the high frequency noise between the commercial AC power supply AC and the lighting device.

  Reference numeral 3 denotes a load driving unit configured to use a switching element such as a triac element in order to drive the illumination load 1 in response to a trigger signal output from the load control unit 5.

  Reference numeral 4 denotes a power supply phase detection unit that detects a power supply phase to be used as a synchronization signal when the lighting load 1 is phase-controlled.

  A load control unit 5 includes an IC such as a microcomputer for controlling the operation of the illumination load 1. Further, it also functions as a load determination unit 5a that receives the load lighting detection signal from the load lighting detection unit 8 and determines the type of load.

  Reference numeral 6 denotes a control power supply generation unit, which is composed of a diode, a capacitor, a Zener diode, and the like for rectifying the commercial AC power supply AC and converting it to a DC voltage.

  A detailed circuit example of each part will be described later in the embodiment of FIG.

  FIG. 2 is a flowchart showing the operation of the present embodiment, and FIG. 3 shows an operation waveform. After the power is turned on, the lighting device first reads the power phase signal from the power phase detector 4 into the load controller 5. At this time, the length between hi or ij in FIG. 3 is a numerical value specific to the power supply frequency. For example, at 50 Hz, the length between h and i is 10 ms, which is the sum of the ON signal of the transistor Q1 in FIG. In this way, the power supply frequency is determined once, and the lighting trigger signal of the lighting load 1 is once turned off.

  Next, based on the information on the power supply frequency, load control is performed so that the capacitive load is shifted to an arbitrary phase from the timing obtained from the power supply phase detection unit 4 so that the capacitive load does not light (for example, around 135 °). Calculated in part 5. For example, in this case, the trigger signal is turned ON for a period T4 up to 180 ° at the timing after time T3 from the rise of the power supply phase signal (point j in FIG. 3). At the same time, when the signal of the load lighting detection unit 8 is read and the load lighting is confirmed, it is determined as a resistive load, and dimming lighting using phase control is performed from the subsequent timing. The operation waveform of FIG. 3 is an example in this case.

  If the lighting is not detected at this time, it is regarded as a capacitive load, and thereafter, a control for sending a lighting signal from the 0 ° phase to the 180 ° phase is performed.

  In this way, first, it is confirmed whether or not the lighting load 1 is lit by the predetermined phase control, and then by performing control according to each lighting operation, any lighting load is connected, It is possible to automatically switch to a suitable control.

  In the embodiment, the setting is aimed at the difference between the resistive load and the capacitive load. For example, the same applies to the case where the resistive load and the inductive load are discriminated, and the phase is set so that the inductive load does not light up. Thus, it is possible to take a means of switching to each operation mode according to the presence or absence of lighting.

  When the illumination load is a capacitive load, depending on the state of the electrolytic capacitor Ci (FIG. 24) of the input unit, the input current may be different between the state where the charge is not charged and the state where it is charged. Therefore, for example, as shown in FIG. 3, when determining the power supply frequency, it is desirable to once intentionally turn on and leave the electrolytic capacitor Ci in a charged state as in the case of normal lighting.

  If there is a delay in the lighting of the load with respect to the voltage application, the application of the trigger signal at a predetermined phase when confirming the presence or absence of lighting may be repeated continuously for a certain period.

(Embodiment 2)
The control operation of this embodiment is shown in FIG. 4, and its flowchart is shown in FIG. The basic operation is the same as that of the first embodiment, but the trigger signal phase control method upon detection of load lighting is different from that of the first embodiment.

  In the first embodiment, whether or not the load is lit is determined based on a fixed phase. For example, if the lighting load is in a broken state due to some trouble (for example, filament breakage), Since it does not light even if there is, the load control unit 5 misidentifies it as a light bulb type fluorescent lamp, and continues to send a lighting signal.

  On the other hand, in the present embodiment, the phase of the trigger signal is swept between 0 ° and 180 °. By doing in this way, when the load lighting is not detected even if the phase is swept from 0 ° to 180 °, it is determined that the load is abnormal or no load is detected. By stopping the lighting signal to, useless power consumption can be suppressed, and unnecessary voltage application to the illumination load can be eliminated.

  Referring to FIG. 4, first, the falling phase (ON start timing) of the trigger signal is fixed in the vicinity of the 0 ° phase, and the rising phase (ON end timing) is the phase of the k point. In the next cycle, only this rising phase is moved to point l, and if lighting is not detected, it is further moved to points m and n.

  If it is a resistive load, it is lit in the first phase, and if no lighting is detected, it can be determined that another load (for example, a capacitive load) or a load abnormality at that time. Next, the phase is gradually shifted and if it is lit, it is determined as a capacitive load, and if it is not lit even at a phase of 180 °, it is determined that the load is abnormal and the load output may be stopped.

  Further, when there is a delay in lighting the load with respect to the voltage application, the trigger signal application at a predetermined phase may be swept while being repeated for an arbitrary period.

(Embodiment 3)
The control operation of this embodiment is shown in FIG. The basic operation is the same as in the first embodiment, but differs from the first embodiment in the trigger signal control method when load lighting is detected. The feature of this embodiment is that the trigger signal can be a pulse signal having an arbitrary width by using a triac element TR (see FIG. 8) as a switching element. In the operation of the triac element, once the gate signal of the triac element is turned on, if the current exceeding the holding current value flows to the triac element, the power supply voltage is zero even if the gate signal is turned off. Until that point, the triac element continues to be turned on.

  Therefore, for example, even if the pulse width is the minimum necessary width (for example, about 300 μs) according to the characteristics of the triac element, the lighting can be maintained. As a result, the gate current can be minimized and power can be saved.

  Referring to FIG. 6, a trigger signal having a width of T5 (for example, 300 μs) is applied to a predetermined phase interval during the load lighting detection process. At this time, if it is a resistive load (for example, an incandescent lamp), as shown in the figure, the triac element continues to be turned on during T6 even after the trigger signal is turned off.

  Further, in the processing after the load determination, the pulse trigger signal (pulse width T5) as shown in FIG. 6 is used to light the load by applying the minimum necessary gate signal even with the same lighting control. be able to.

(Embodiment 4)
FIG. 7 shows a configuration diagram of Embodiment 4 of the present invention, and FIG. 8 shows a circuit diagram thereof. Although the basic configuration is the same as that of the first embodiment, the configuration of the load lighting detection unit 8 is different, and the presence or absence of load lighting is detected based on the presence or absence of current flowing through the filter unit 2.

  As illustrated in FIG. 8, the load lighting detection unit 8 of the present embodiment uses a filter unit 2 that is used to remove high-frequency noise that occurs during dimming of the illumination load 1. The filter unit 2 includes a low-pass filter composed of a capacitor Cf and an inductor Lf, and detects the presence or absence of load lighting using an induced voltage of the inductor Lf. That is, a detection winding Ld that is electromagnetically coupled to the inductor Lf of the filter unit 2 is arranged, and the voltage generated in the detection winding Ld is rectified and smoothed by the diode bridge DBd and the capacitor Cd. Then, by clamping this voltage with the resistor Rd and the Zener diode ZDd, it can be detected as a pulse waveform signal having a width of Td as shown in FIG.

  FIG. 9 is an example of a detection signal when a bulb-type fluorescent lamp that is a capacitive load is turned on. When the load control unit 5 determines that the signal Vd is an H signal, the load is determined to be lit. At this time, if the phase is such that only the resistive load is lit, it is determined as a resistive load. If the trigger signal is swept as shown in the second embodiment, the type of load is determined from the relationship with the pulse phase of the trigger signal at the time of application.

  Here, the circuit configuration of each unit in FIG. 8 will be described. The following description is the same in the conventional example of FIG.

  The load driving unit 3 includes a triac element TR inserted in a power supply path from the AC power supply AC to the lighting load 1, a PNP type in which an emitter is connected to the gate of the triac element TR and a collector is connected to the ground via a resistor R6. Transistor Q2. The base of the transistor Q2 is connected to the load controller 5 via a resistor R7, and is connected to the emitter of the transistor Q2 via a resistor R8. A parallel circuit of a resistor R9 and a capacitor C5 is connected between one main electrode of the triac TR and the emitter of the transistor Q2.

  The power phase detector 4 includes a rectifier diode D3 whose anode is connected to the AC power source AC, an NPN transistor Q1 whose base is connected to the cathode of the rectifier diode D3 via a resistor R3, and a base-emitter of the transistor Q1. A parallel circuit of a resistor R4 and a capacitor C4 connected therebetween is provided. That is, the output voltage of the AC power supply AC is rectified by the rectifier diode D3, divided by the resistors R3 and R4, smoothed by the capacitor C4, and input to the base of the transistor Q1. The collector of the transistor Q1 is connected to a DC power source via a resistor R5, and the connection point between the resistor R5 and the transistor Q1 is connected to the IC of the load control unit 5. That is, while the output voltage of the AC power supply AC is higher than the predetermined voltage, the power supply phase detection unit 4 is turned off by turning on the transistor Q1, and the input voltage is lower than the predetermined voltage. When the transistor Q1 is turned off sometimes, the output becomes the H level, and the output is inverted in the vicinity of the phase where the voltage of the AC power supply AC becomes 0V.

  As shown in FIG. 22 of the conventional example, the timing a at which the output of the power supply phase detection unit 4 changes from the L level to the H level is slightly before the phase timing b at which the corresponding voltage becomes 0 V, and the output is at the H level. The timing c at which the level shifts from L to L is slightly later than the timing d of the phase at which the corresponding voltage becomes 0V.

  The control power generator 6 includes a first resistor R1 for preventing inrush current, both ends of which are connected to the AC power source AC, and a series circuit of a first capacitor C1 made of, for example, a film capacitor and a first diode D1. A series circuit of a second diode D2 and a second capacitor C2 connected in parallel to the first diode D1, and a second resistor R2 and a Zener diode ZD connected in parallel to the second capacitor C2. And a third capacitor C3 connected in parallel to the Zener diode ZD.

  The first diode D1 has an anode connected to the first capacitor C1 and a cathode connected to the AC power supply AC, and the second diode D2 has an anode connected to the second capacitor C2 and a cathode connected to the first capacitor C1. The Zener diode ZD is connected to the connection point between the diode D1 and the first capacitor C1. The anode of the Zener diode ZD is connected to the second resistor R2, and the cathode is connected to the same side as the first diode D1 with respect to the AC power supply AC. ing. That is, the control power supply voltage is generated by the Zener voltage of the Zener diode ZD.

  Note that the circuit configurations of the load driving unit 3, the power supply phase detection unit 4, and the control power generation unit 6 are merely examples, and it goes without saying that other circuit configurations having similar functions may be used.

(Embodiment 5)
FIG. 10 shows a configuration example of the lighting device of the present embodiment. In the present embodiment, the load lighting detection unit 8 is also used as the illuminance sensor of the sensor unit 7. Unlike the fourth embodiment, the load lighting detection uses an illuminance sensor to detect a change in illuminance when the illumination load 1 is lit.

  The operation at this time will be described with reference to FIG. First, the relationship between the signal of the illuminance sensor and the ambient illuminance of the lighting fixture is shown in FIG. The output signal waveform of the illuminance sensor is continuously displaced during one day in an arbitrary range α to β. At this time, the load control unit 5 arbitrarily sets a threshold value X for the illuminance sensor, and when the signal level exceeds the threshold value X, the illumination load 1 is turned off, and the illumination is performed when the threshold value X falls below the threshold value X. Control such as turning on the load 1 is possible. For example, if the threshold value X is set to the signal level of the illuminance sensor at sunset, the illumination load 1 can be automatically turned on every evening. In the present embodiment, it is possible to detect whether or not the lighting load 1 is lit using such an illumination sensor for lighting control.

  Next, a process of performing lighting detection of the illumination load and determining the load and the subsequent operation will be described with reference to FIG. For example, when the power is turned on when the threshold value X falls below an arbitrarily set value, the lighting device first performs a power frequency determination process and then forcibly turns off the lighting load. Next, on the basis of the information on the power supply frequency, a trigger signal is given at a phase that is shifted by an arbitrary phase from the timing obtained from the power supply phase detector 4 so that the capacitive load does not light up. When the illumination load 1 is turned on when a trigger signal is given at a predetermined phase, the illuminance detected by the illuminance sensor increases sharply. Therefore, when the signal from the illuminance sensor is read and a voltage increase of the illuminance sensor signal due to the self-light is confirmed, it is determined that the illumination load 1 is a resistive load. Furthermore, when the load determination process is completed, the lighting load 1 is turned off once, and thereafter, an operation mode according to the type of the lighting load 1 is performed. In the figure, a case where it is determined that the lamp is incandescent and dimmed is shown.

  In the present embodiment, the illuminance sensor combines the lighting control of the lighting load according to the ambient illuminance and the lighting confirmation sensor for determining the type of the lighting load, so at least the load lighting detection process is performed after the power is turned on. Until completion, the comparison determination result with the threshold value X with respect to the ambient illuminance is ignored.

  Note that when the lighting load is turned on, the signal level of the illuminance sensor increases, and when the threshold value X is exceeded, there is a possibility that the lighting load will turn off again (self-flashing phenomenon). After performing the above, it is only necessary to prevent self-flashing due to self-light by performing a mask process that eliminates the influence on the sensor signal due to lighting of the illumination load. For example, after lighting, means for subtracting the amount of increase after lighting of the illumination load (the amount of increase due to self-light) from the illuminance level before lighting is compared with the threshold value X.

  A configuration example of an actual lighting fixture is shown in FIG. In the lighting fixture, the lighting load 1 and the lighting device 34 are arranged in a fixture housing 30 and a translucent globe 31 for transmitting light. Further, an illuminance sensor 7A is incorporated in the lighting device 34, and is arranged inside the lighting fixture in addition to the translucent window 33 provided on the outer side of the fixture for transmitting light around the lighting fixture. Thus, by providing the translucent window 32, the lighting of its own illumination load 1 can be detected.

  The illuminance sensor 7A is made of, for example, a photo IC diode, and outputs a voltage signal having a higher voltage value as the surrounding is brighter as shown in FIG.

(Embodiment 6)
The configuration example of the illumination device of the present embodiment is the same as that of the sixth embodiment (FIG. 10), and the load lighting detection unit 8 is also used as the infrared sensor of the sensor unit 7. The infrared sensor of the sensor unit 7 includes, for example, a pyroelectric sensor that detects infrared rays emitted from the human body, and detects the presence of the human body based on the output of the pyroelectric sensor. Further, the presence or absence of load lighting is detected by detecting heat generated when the illumination load 1 is lit using this infrared sensor.

  The operation of this embodiment will be described with reference to FIG. First, the lighting load lighting control operation using the infrared sensor signal is shown in FIG. The output signal waveform of the infrared sensor becomes L level while detecting a human body. Once the load control unit 5 to which the infrared sensor is connected detects an L level signal, it outputs a trigger signal to turn on the illumination load 1. In the figure, the illumination load 1 is set to ON by an L level trigger signal. At the same time, the lighting holding timer starts counting, and when the timer finishes counting an arbitrary time, the trigger signal is returned to the H level and the lighting load 1 is turned off. When a signal for detecting a person is entered again while the lighting holding timer is counting, the timer is set to recount from that point. In the present embodiment, lighting detection of the lighting load 1 is performed using such an infrared sensor for lighting control by human body detection.

  Next, processing for performing lighting detection of the illumination load and determining the load and the subsequent operation will be described with reference to FIG. As shown in the figure, when the illumination load 1 is turned on or off, the signal output of the infrared sensor is switched with a change in heat generated from the filament portion of the illumination load.

  When the power is turned on, the output of the infrared sensor is ignored until the load lighting detection process starts. Then, the lighting detection process is started and a trigger signal is given at a predetermined phase. At the same time, the infrared sensor signal is monitored, and if there is an output change, it is determined that the illumination load is turned on. Furthermore, when the load determination process is completed, the illumination load is turned off once in a state where the output of the infrared sensor is ignored, and then the human detection determination by the infrared sensor and the operation mode according to the type of the illumination load are performed. .

  At this time, the infrared sensor signal is ignored until the lighting load turns on and completes extinction so that the illumination load blinks and an output is generated in the infrared sensor, and it is not judged that human detection has occurred. By performing such mask processing, it is only necessary to prevent malfunction due to self-light.

  A configuration example of an actual lighting fixture is shown in FIG. In the lighting fixture, the lighting load 1 and the lighting device 45 are arranged in a fixture globe 40 and a translucent globe 41 for transmitting light. Further, an infrared sensor 7B is incorporated in the lighting device 45, and in addition to the condenser lens 43 provided on the outer side of the fixture in order to detect a person around the lighting fixture, A condensing lens 42 is provided so as to be disposed, and a reflection plate 44 that is focused on each infrared sensor 7B is used so that a change in heat when the lighting load 1 is turned on can also be detected. ing.

(Embodiment 7)
In the present embodiment, after the operation mode is determined by the load lighting detection process, the load control unit 5 continuously monitors the load lighting state. After determining the load, if it does not light even if a trigger signal is applied at a phase that should normally be lit, or if lighting is detected at a phase that should not be lit, it is determined that the load is abnormal and lit once Transmission of the trigger signal for the power supply is stopped, and the load determination process at the time of power-on is repeated again. By adding such a function, even when the lighting load is replaced by a user during energization or when the lighting load fails, the lighting device itself can automatically cope with it.

(Embodiment 8)
FIG. 15 shows a configuration diagram of the present embodiment. In addition to the load lighting detection unit 8, a no-load detection unit 10 is provided. The signal from the no-load detection unit 10 is constantly monitored by the load control unit 5 after the power is turned on. For example, the no-load detection unit 10 is a unit in which a mechanical switch provided in a socket unit is connected to the load control unit 5.

  When the no-load detection signal is output from the no-load detection unit 10 after the operation mode is determined by the load lighting detection process, the load control unit 5 determines that the load has been removed, and once for lighting Stops transmission of the trigger signal and repeats the load determination process when the power is turned on. By adding such a function, even when the lighting load is replaced by a user during energization, the lighting device itself can automatically cope. Further, when it is determined that there is no load, it is possible to save power by eliminating signals to unnecessary switching elements.

(Embodiment 9)
FIG. 16 shows a configuration diagram of this embodiment. In the present embodiment, in addition to the load lighting detection unit 8, the load control unit 5 is provided with a load lighting storage unit 11 for storing the number of times of lighting and a cumulative lighting time, and a load state display unit 12. The detection signal of the load lighting detection unit 8 is constantly monitored by the load control unit 5 as in the seventh embodiment.

  The load lighting storage unit 11 provided in the load control unit 5 stores the number of rises or falls of the lighting detection signal of the load lighting detection unit 8. Further, the lighting time is calculated from the product of the number of times and the cycle of the power frequency obtained from the power phase signal, and stored as the cumulative lighting time. When the stored value reaches an arbitrary number of times set for the determined illumination load, a signal is transmitted to the load state display unit 12 to notify the user of the current situation. By adding such a function, for example, when the flashing performance of the light bulb type fluorescent lamp is set to 30000 times, when the remaining 1000 times, the notification function of notifying the user with some sound according to the lighting operation is provided. Can be added.

  In addition to the lighting fixtures used at the entrance, there are many cases where there are no light sources in the surrounding area. Can improve convenience.

(Embodiment 10)
This embodiment will be described with reference to FIG. 1a is an incandescent lamp, 1b is a bulb-type fluorescent lamp, and 1c is a bulb-type LED lamp. Various types of illumination loads are conceivable, such as incandescent lamps and LED lamps for resistive loads, and bulb-type fluorescent lamps and LED lamps for capacitive loads. At this time, if it is a fluorescent lamp or an LED lamp, its base is also various.

  Therefore, in this embodiment, the lighting apparatus of Embodiments 1 to 9 is configured as a lighting fixture in combination with a socket of an E base. If the socket of the E base is used, the shape of the lighting load must be a substantially spherical shape or a substantially cylindrical shape as shown in FIG. This is because the approximate dimensions are inevitably the same. For this reason, for example, the cover of the lighting fixture is not affected greatly by the design against the difference in the lighting load. The shared design that can be stored becomes easy.

It is a block diagram which shows the structure of Embodiment 1 of this invention. It is a flowchart which shows operation | movement of Embodiment 1 of this invention. It is an operation | movement waveform diagram of Embodiment 1 of this invention. It is an operation | movement waveform diagram of Embodiment 2 of this invention. It is a flowchart which shows operation | movement of Embodiment 2 of this invention. It is an operation | movement waveform diagram of Embodiment 3 of this invention. It is a block diagram which shows the structure of Embodiment 4 of this invention. It is a circuit diagram which shows the specific circuit structure of Embodiment 4 of this invention. It is an operation | movement waveform diagram of Embodiment 4 of this invention. It is a block diagram which shows the structure of Embodiment 5 of this invention. It is operation | movement explanatory drawing of Embodiment 5 of this invention. It is sectional drawing of the lighting fixture using Embodiment 5 of this invention. It is operation | movement explanatory drawing of Embodiment 6 of this invention. It is sectional drawing of the lighting fixture using Embodiment 6 of this invention. It is a block diagram which shows the structure of Embodiment 8 of this invention. It is a block diagram which shows the structure of Embodiment 9 of this invention. It is a perspective view which shows the shape of the illumination load of E nozzle used for Embodiment 10 of this invention. It is a perspective view which shows the external appearance of the lighting fixture used by the conventional shop side. It is a disassembled perspective view which shows the structural example of the lighting fixture with an incandescent lamp dimming type sensor used by the conventional shop side. It is a block diagram which shows the structural example of the conventional incandescent lamp light control illuminating device. It is a circuit diagram which shows the detailed circuit structure of the conventional incandescent lamp light control illuminating device. It is an operation | movement waveform diagram at the time of the incandescent lamp light control of a prior art example. It is a block diagram which shows the structural example of the conventional illuminating device for incandescent lamp light control with a sensor. It is a circuit diagram which shows the example of an internal structure of the light bulb type fluorescent lamp which is the conventional capacitive load. It is a wave form diagram which shows the input current waveform of the conventional bulb-type fluorescent lamp. It is a wave form diagram which shows operation | movement when a light bulb type fluorescent lamp is connected to the conventional incandescent lamp dimming device.

Explanation of symbols

AC commercial AC power source 1 Lighting load 3 Load drive unit 4 Power supply phase detection unit 5 Load control unit 5a Load determination unit 8 Load lighting detection unit

Claims (10)

Switching element for turning on / off commercial power supplied as power source for lighting load, power source phase detecting unit for detecting phase of commercial power source for phase control of lighting load, and switching on receiving output of power source phase detecting unit In a lighting device that includes a load control unit that determines a conduction angle of an element, and controls lighting lighting by a signal transmitted from the load control unit to a switching element at an arbitrary conduction angle.
A load lighting detection unit for detecting whether or not the lighting load is lit;
It has a determination unit that determines the type of lighting load based on a signal from the load lighting detection unit,
The load control unit turns on the switching element for a predetermined period after turning on the power at a phase in which only the lighting angle turns on the conduction angle of the commercial power source, and determines the type of the lighting load according to the result determined in that period. A lighting device characterized by switching to a corresponding operation mode. The signal transmitted from the load control unit to the switching element at an arbitrary conduction angle is between the phase angle of 0 ° and the phase angle of 180 ° in the section where the lighting load is turned on, the timing at which the commercial power supply rises from 0V. 2. The lighting device according to claim 1, wherein the lighting device is swept. The switching element is a triac element, and the signal transmitted from the load control unit to the switching element at an arbitrary conduction angle is a pulse waveform fixed at an arbitrary width. Lighting device. The load lighting detection unit for detecting whether or not the lighting load is turned on detects whether or not the lighting is turned on based on a current value of an inductance element for a high frequency filter connected in series between the lighting load and the commercial power supply. Item 4. The lighting device according to any one of Items 1 to 3. An illuminance sensor for detecting ambient brightness is provided, and the load control unit has a function of controlling the lighting load with a switching element in accordance with the ambient illuminance detected by the illuminance sensor. The lighting device according to claim 1, wherein the lighting load is detected by detecting a change in visible light output emitted from the illumination sensor by using an illuminance sensor. An infrared sensor for detecting a person is provided, and the load control unit has a function of controlling lighting of a lighting load by a switching element when it is determined that a person has been detected, and the load lighting detection unit is an amount of infrared rays emitted from the lighting load. The lighting device according to claim 1, wherein the presence or absence of lighting of the illumination load is detected by detecting an output change of the illumination load with an infrared sensor. When the operation mode is confirmed, the signal from the load lighting detection unit is always checked, and when it is determined that the output of the load lighting detection unit is different from the lighting status in the lighting operation mode, the lighting signal is transmitted. The lighting device according to claim 1, wherein the lighting device is stopped and the type of the lighting load is redetermined. It has a no-load detection unit that detects that the lighting load is in an unloaded state while the power is on.When no load is detected, the transmission of the lighting signal is stopped, and the type of lighting load is reset when the load is detected. The lighting device according to claim 1, wherein the lighting device is discriminated. It has a storage unit that stores the lighting load lighting number obtained from the signal count of the load lighting detection unit, the lighting time of the lighting load obtained from the signal length of the load lighting detection unit, or both. The lighting device according to any one of claims 1 to 8, wherein a desired operation is performed when the value reaches an arbitrary set value corresponding to the type of lighting load determined in advance. A lighting fixture comprising: the lighting device according to any one of claims 1 to 9; and a lighting load socket of an E base.

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