JP2013030415A - Lighting control device with sensor and lighting apparatus with sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting control device with a sensor and a lighting apparatus with a sensor capable of suppressing an unnecessarily lit state.SOLUTION: A lighting control device 1 with a sensor comprises: a light-emitting diode 2; a lighting device 3 which lights the light-emitting diode 2; a detection device 4 which outputs a detection signal in response to detection of a human body; a control device 5 which controls the lighting device 3 so as to light the light-emitting diode 2 at a predetermined low luminosity when the detection device 4 detects that a human body has entered a predetermined region, and to light the light-emitting diode 2 at a luminosity higher than said predetermined low luminosity when the detection device 4 has detected a human body again during a predetermined period of time thereafter.

Description

  Embodiments described herein relate generally to a sensor-equipped lighting control device having a human sensor and a sensor-equipped lighting fixture including the sensor-equipped lighting control device.

  LED lighting fixtures that use LEDs as light sources are rapidly becoming popular in place of lighting fixtures that use fluorescent lamps, incandescent lamps, etc. as light sources due to their low power consumption and long life. And also in LED lighting fixtures, controlling the lighting state of LED according to the presence or absence of a human body by the detection of a sensor, ambient brightness, etc. is performed. For example, in a downlight embedded in a ceiling, as shown in Patent Document 1, a sensor unit (light receiving unit) is provided on the lower surface side of the annular case, and a switch is provided on the outer surface side of the annular case.

  The LED is turned on immediately when the human sensor detects a human body, and is turned off after a predetermined time set by the switch when the human sensor stops detecting the human body. Here, the LED has a quick response and rises rapidly and has a high luminance, so that it may be dazzled by a person when it is lit. For this reason, at the rise of the LED, as shown in Patent Document 2, as in a light source such as a fluorescent lamp or an incandescent lamp, it is common to gradually increase (fade in) the amount of change in luminous flux per unit time. Can be considered.

Japanese Unexamined Patent Publication No. 2003-141926 (second page, FIG. 1) JP-A-9-289082 (page 4, FIG. 2)

  The lighting of the light source by fade-in is normally rated (100%) when the human body completely enters (enters) the detection range of the human sensor, so the time to gradually increase the luminous flux (fade time) Is set in a relatively short time. Thereby, even if it is a stand-up by fade-in depending on a person, it has the fault that lighting of LED feels dazzling.

  In addition, even if a human body detected near the boundary of the detection range of the human sensor does not completely enter the detection range, the light source is turned on for a predetermined time, and this lighting is wasted. It has the disadvantage of being.

  An object of the present embodiment is to provide a sensor-equipped lighting control device and a sensor-equipped lighting fixture that can suppress unnecessary lighting states.

  The illumination control device with a sensor according to the present embodiment includes a light emitting diode, a lighting device, a detection device, and a control device.

  The light emitting diode serves as a light source and is lit by a lighting device.

  The lighting device is formed to light the light emitting diode.

  The detection device is configured to detect a human body within a predetermined area and output a detection signal in response to the detection of the human body.

  The control device controls the lighting device according to the detection of the human body by the detection device. That is, when the detection device detects that the human body has entered the predetermined area, the control device turns on the light emitting diode at a predetermined low light intensity, and when the detection device detects the human body again within the predetermined period thereafter. The light emitting diode is lit at a light intensity higher than the low light intensity.

  According to the embodiment of the present invention, when the human body enters the predetermined region by the control of the lighting device by the control device, the light emitting diode is turned on at a predetermined low light intensity, and the detection device is turned on within a predetermined period thereafter. When the human body is detected again, the light emitting diode is turned on at a light intensity higher than a predetermined low light intensity, so that the light emitting diode can be turned off at a high light intensity when the human body does not completely enter the predetermined area. It can be expected that wasteful power consumption can be suppressed.

It is a schematic circuit diagram of the illumination control apparatus with a sensor which shows the 1st Embodiment of this invention. Similarly, the output voltage waveform of a control apparatus is shown, (a) is a sine wave AC voltage waveform diagram, and (b) is a phase control AC voltage waveform diagram. Similarly, it is the change figure which shows the rise of luminous flux of the light emitting diode. Similarly, it is the change figure which shows the rise of another luminous flux of the light emitting diode. It is a lighting fixture with a sensor which shows the 2nd Embodiment of this invention, (a) is a schematic front view, (b) is a schematic bottom view. Similarly, it is a lighting fixture with a sensor, (a) is a schematic sectional side view of the AA direction of FIG.6 (b), (b) is a schematic bottom view of the state which removed the LED lamp. Similarly, it is a schematic right side view of a lighting fixture with a sensor. Similarly, it is a schematic partial longitudinal cross-sectional view of an annular body. Similarly, it is a schematic diagram of a human sensor. Similarly, an LED lamp is shown, (a) is a schematic front view, and (b) is a schematic bottom view. It is a schematic perspective view of the lighting fixture with a sensor which shows the 3rd Embodiment of this invention. Similarly, it is a partially cutaway schematic side view of a lighting fixture with a sensor when a straight tube LED lamp is not mounted.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described.

  The present embodiment is an illumination control device 1 with a sensor, and includes a light emitting diode 2, a lighting device 3, a detection device 4, and a control device 5, as shown in FIG.

  The light emitting diode 2 emits illumination light such as white light, and forms a plurality of LED circuits 6 connected in series. The light emitting diode 2 may be either a surface mount type package product or an LED bare chip mounted on a substrate by a COB (Chip On Board) method.

  The lighting device 3 supplies current to the light emitting diode 2 to light the light emitting diode 2, and an AC-DC conversion circuit 7 that converts an external AC power source (commercial AC power source) Vs into a DC power source, this AC- A current adjustment circuit 8 for changing the current supplied from the DC conversion circuit 7 to the light emitting diode 2 and a control circuit 9 for controlling the current adjustment circuit 8 so as to supply a predetermined current to the light emitting diode 2 are formed. Yes.

  The lighting device 3 has its input terminals 10 a and 10 b connected to the commercial AC power supply Vs via the control device 5, and its output terminals 11 a and 11 b connected to the LED circuit 6. A sine wave AC voltage of the commercial AC power supply Vs or a predetermined phase control AC voltage in which the sine wave AC voltage is phase-controlled is input to the input terminals 10a and 10b.

  The AC-DC conversion circuit 7 includes a rectifier 12 formed of a diode bridge, a backflow prevention diode D1, and a smoothing capacitor C1. The input of the rectifier 12 is connected to the input terminals 10a and 10b of the lighting device 3 via the resistor R1, and receives the AC voltage output from the control device 5, that is, the sine wave AC voltage or the phase control AC voltage. The output of the rectifier 12 is connected to the smoothing capacitor C1 via the backflow prevention diode D1. The AC-DC conversion circuit 7 converts the AC voltage output from the control device 5 into a DC voltage and outputs it between both ends of the smoothing capacitor C1.

  Between the outputs of the rectifier 12, a voltage detection circuit 13 composed of a series circuit of a resistor R2 and a resistor R3 is provided. The output voltage (rectified voltage) of the rectifier 12 is detected by the voltage detection circuit 13 and input to the control circuit 9.

  The current adjustment circuit 8 is formed in a known step-down chopper circuit having a field effect transistor Q1, a diode D2, an inductor L1, and a capacitor C2. Then, both ends of the capacitor C2 are connected to the output terminals 11a and 11b of the lighting device 3 through the current detection circuit 14. The gate (control terminal) of the field effect transistor Q1 is connected to the control circuit 9.

  The control circuit 9 includes a microcomputer (not shown), and is configured to turn on / off the field effect transistor Q1 in accordance with the output voltage of the rectifier 12 detected by the voltage detection circuit 13. As a result, the current adjustment circuit 8 converts the DC voltage output from the AC-DC conversion circuit 7 into an output voltage of the rectifier 12, in other words, a DC voltage corresponding to the AC voltage input to the rectifier 12, thereby converting the capacitor C2 Output between both ends.

  The LED circuit 6 connected to the output terminals 11a and 11b is supplied with a current corresponding to the AC voltage (input voltage) input to the rectifier 12. Here, when the input voltage of the rectifier 12 is a sinusoidal AC voltage, the control circuit 9 controls on / off of the field effect transistor Q1 so that the light emitting diode 2 is lit (100%), and the input voltage of the rectifier 12 is When the predetermined phase control AC voltage is applied, the field effect transistor Q1 is on / off controlled so that the light emitting diode 2 is lit at a predetermined low light intensity, for example, 20% of rated lighting.

  In addition, the control circuit 9 is formed so as to control the on / off of the field effect transistor Q1 so that the current flowing through the light emitting diode 2 is constant, that is, the current does not fluctuate. The current flowing through the light emitting diode 2 is detected by the current detection circuit 14. The current detection circuit 14 includes a resistor R4, for example, and converts the current flowing through the light emitting diode 2 into a voltage across the resistor R4. The control circuit 9 inputs the voltage across the resistor R4 and controls the field effect transistor Q1 to turn on and off so that the voltage across the resistor is constant.

  Note that the control circuit 9 has a battery (not shown), and this battery is always charged by the voltage across the capacitor C1 to secure an operating power supply.

  The detection device 4 detects the presence or absence of a human body, and outputs a detection signal to the control device 5 when a human body is detected. The detecting device 4 includes a human sensor 15, a control unit 16, an output unit 17, and a switch 18.

  The human sensor 15 detects a human body within a predetermined area, and is composed of, for example, a pyroelectric infrared sensor. Here, the predetermined area means a detection area where the human sensor 15 detects a human body. The human sensor 15 detects the presence of a human body when the incident infrared rays change by a predetermined amount. Each time a human body is detected, for example, a pulsed detection signal is output.

  The control unit 16 includes a microcomputer (not shown) and is configured to output a detection signal from the output unit 17 in accordance with the detection signal output from the human sensor 15. The detection signal is output every time the human sensor 15 detects a human body.

  The switch 18 sets a delay time from when the human sensor 15 no longer detects a human body to when the light emitting diode 2 is turned off. The delay time can be set by moving the switch 18 to a display position of 10 seconds, 1 minute, 3 minutes, for example. The control unit 16 outputs a delay time data signal from the output unit 17 to the control device 5 according to the position of the switch 18.

  The control device 5 is provided between the commercial AC power source Vs and the lighting device 3, and receives the detection signal output from the detection device 4, and the lighting state of the light emitting diode 2 is controlled according to the detection signal. Thus, the lighting device 3 is controlled. That is, the sine wave AC voltage of the commercial AC power supply Vs is input to the input terminals 10a and 10b of the lighting device 3 in accordance with the human body detection state of the human sensor 15 so that the light emitting diode 2 has a predetermined low luminous intensity (for example, 20%). ) Which is higher in luminous intensity than rated (100%), or a predetermined phase control AC voltage obtained by phase-controlling a sinusoidal AC voltage is input to light up the light emitting diode 2 at a predetermined low luminance. Is what you do. For this reason, in the present embodiment, the control device 5 includes the input unit 19, the main control unit 20, the storage unit 21, the first relay 22, the second relay 23, and the phase controller 24. .

  The first relay 22 has normally open contacts 22a1, 22a2 and normally open contacts 22a3, 22a4, and the second relay 23 has normally open contacts 23a1, 23a2. The normally open contact 22a1 and the normally open contact 22a3 of the first relay 22 are connected to the input terminals 25a and 25b of the control device 5, respectively. The normally open contact 22a2 of the first relay 22 is connected to the normally open contact 23a1 of the second relay 23, and the normally open contact 22a4 of the first relay 22 is connected to the output terminal 26b of the control device 5. . The normally open contact 23 a 2 of the second relay 23 is connected to the output terminal 26 a of the control device 5.

  The input terminals 24a and 24b of the phase controller 24 are connected to the normally open contacts 23a1 and 23a2 of the second relay 23, respectively. The input terminals 25a and 25b of the control device 5 are connected to the commercial AC power supply Vs, and the output terminals 26a and 26b are connected to the input terminals 10a and 10b of the lighting device 3, respectively. Thus, the control device 5 is connected between the commercial AC power supply Vs and the lighting device 3.

  The input unit 19 is configured to receive the detection signal and the delay time data signal output from the detection device 4 and send them to the main control unit 20. The main control unit 20 includes a microcomputer (not shown), and is configured to store the delay time given to the delay time data signal in the storage unit 21. The storage unit 21 is formed in an overwritable nonvolatile memory.

  The main controller 20 is configured to control the first relays 22 and 23 according to the detection signal. That is, when an initial detection signal is input, a relay coil (not shown) of the first relay 22 is energized. Here, the “initial detection signal” means a detection signal output from the detection device 4 when the human body first enters the predetermined area where the human sensor 15 detects the human body. The normally open contacts 22 a 1, 22 a 2 and the normally open contacts 22 a 3, 22 a 4 of the first relay 22 are connected by connection bars 22 d 1, 22 d 2, respectively, and the sine wave AC voltage of the commercial AC power supply Vs is input to the phase controller 24. The phase of the sine wave AC voltage is controlled by the phase controller 24. A predetermined phase control AC voltage is output from the output terminals 26 a and 26 b of the control device 5 and input to the input terminals 10 a and 10 b of the lighting device 3.

  When the main control unit 20 inputs the detection signal within a predetermined period (second elapsed time) after the first elapsed time has elapsed after the initial detection signal is input, A relay coil (not shown) is energized. Here, the first elapsed time can be, for example, 2 seconds, and the predetermined period (second elapsed time) can be, for example, a delay time stored in the storage unit 21. The first elapsed time is a set time for determining that the human body has completely entered the predetermined area.

  When the relay coil of the second relay 23 is energized, the normally open contacts 23a1 and 23a2 are connected by the connection bar 23d1, and the input terminals 24a and 24b of the phase controller 24 are short-circuited. As shown in FIG. 2A, a sine wave AC voltage is output between the output terminals 26 a and 26 b of the control device 5 and is input between the input terminals 10 a and 10 b of the lighting device 3.

  Then, when the delay time stored in the storage unit 21 elapses from the input of the latest detection signal, the main control unit 20 deactivates the respective relay coils of the first relays 22 and 23. As a result, the normally open contacts 22a1, 22a2, the normally open contacts 22a3, 22a4 of the first relay 22 and the normally open contacts 23a1, 23a2 of the second relay 23 are opened, and the output terminal 26a, No AC voltage is output between 26b.

  The phase controller 24 has its input terminals 24 a and 24 b connected to the commercial AC power supply Vs and the input terminal 10 a of the lighting device 3, respectively. The phase controller 24 is connected to input terminals 24a and 24b via a noise filter circuit 27 including an inductor L2 and a capacitor C3, and a triac 28 as a phase control element and a series circuit of a variable resistor VR1 and a resistor R5. Has been. A diac 29 is connected between the gate of the triac 28 and a connection point a1 of the variable resistor VR1 and the resistor R5, and a capacitor C4 is connected in parallel to the resistor R5. The noise filter circuit 27 suppresses noise generated when the triac 28 is turned on. The noise is also suppressed by the resistor R1 and the smoothing capacitor C1 of the AC-DC conversion circuit 7.

  The variable resistor VR1 is connected to a knob (not shown), and the resistance value is varied by turning the knob. As a result, the conduction timing of the triac 28 is varied, and the conduction angle of the sine wave AC voltage of the commercial AC power supply Vs is varied. Here, in the lighting device 3, the resistance value of the variable resistor VR1 is set so that the light emitting diode 2 can be lit at a predetermined low light intensity (for example, 20%), and as shown in FIG. The conduction angle of the wave AC voltage is increased. When the predetermined low luminous intensity of the light emitting diode 2 is absolute, a fixed resistor may be used as the variable resistor VR1.

  As described above, when the initial detection signal is input from the detection device 4 between the output terminals 10a and 10b, the control device 5 outputs a predetermined phase control AC voltage, and then the detection device 4 outputs the first voltage. When the detection signal is input again within a predetermined period (second elapsed time) in which the elapsed time has elapsed, the sine wave AC voltage of the commercial AC power supply Vs is output. When a predetermined phase control AC voltage is input between the input terminals 10a and 10b, the lighting device 3 lights the light emitting diode 2 at a predetermined low light intensity (for example, 20%). When a sinusoidal AC voltage is input between the input terminals 10a and 10b, the light emitting diode 2 is lit (100%). Thus, the control device 5 controls the lighting device 3 according to the detection signal from the detection device 4 and controls the lighting state of the light emitting diode 2.

  Since the light-emitting diode 2 has a quick response, as shown in FIG. 3, the light-emitting diode 2 rises directly from the extinction to a predetermined low luminous intensity (20%) and is lit, and the rated (100%) from the predetermined low luminous intensity (20%). %) Stands up to light intensity and lights up. When the light emitting diode 2 is turned on, the irradiation area (illumination area) of the light emitting diode 2 is illuminated.

  Then, after a delay time from the most recent time point at which the human sensor 15 detects the human body, an AC voltage from the commercial AC power supply Vs is input between the input terminals 10 a and 10 b of the lighting device 3 under the control of the control device 5. Disappear. The control circuit 9 of the lighting device 3 stops the on / off operation of the field effect transistor Q1 of the current adjusting circuit 8, stops the light emitting diode 2 from supplying current, and turns off the light emitting diode 2. Here, when the AC voltage is no longer input between the input terminals 10a and 10b, the DC power source remains between both ends of the smoothing capacitor C1 of the AC-DC conversion circuit 7, so that the control circuit 9 includes a light emitting diode. Instead of directly stopping the current supplied to 2, the current may be gradually decreased. Thereby, as shown in FIG. 3, the light emitting diode 2 is gradually dimmed from the rated lighting and turned off. That is, the light emitting diode 2 is turned on in a fade-out manner.

  Further, the lighting device 3 may gradually increase the current supplied to the light emitting diode 2 when the light emitting diode 2 is turned on at a predetermined low luminous intensity (20%) from the extinguished state. Thereby, as shown in FIG. 4, the light emitting diode 2 is gradually lightened after being turned off and is turned on at a predetermined low luminous intensity (20%). In other words, the light emitting diode 2 may be faded in.

  Next, the operation of the first embodiment of the present invention will be described.

  The human body enters the predetermined area from the vicinity of the boundary of the predetermined area (detection area) where the human sensor 15 detects the human body. When a human body enters the predetermined area, the amount of infrared rays incident on the human sensor 15 changes, and a human body detection signal is output from the human sensor 15. The control unit 16 of the detection device 4 outputs a detection signal from the output unit 17 according to the detection signal. This detection signal becomes the initial detection signal.

  When the initial detection signal is input, the main control unit 20 of the control device 5 energizes the first relay 22 to short-circuit between the normally open contacts 22a1 and 22a2 and between the normally open contacts 22a3 and 22a4. The input terminals 25 a and 25 b of the control device 5 are connected to the output terminals 26 a and 26 b via the phase controller 24. The phase of the sine wave AC voltage of the commercial AC power source Vs input to the input terminals 25a and 25b is phase-controlled by the transfer controller 24, and the predetermined phase control AC voltage shown in FIG. 2B is applied to the output terminals 26a and 26b. Is output. The predetermined phase control AC voltage is input to the input terminals 10 a and 10 a of the lighting device 3.

  The predetermined phase control AC voltage is converted into a DC voltage (DC power supply) by the AC-DC conversion circuit 7 of the lighting device 3. A DC voltage corresponding to a predetermined phase control AC voltage is generated between both ends of the smoothing capacitor C1. The predetermined phase control AC voltage is detected by the voltage detection circuit 13 and input to the control circuit 9.

  The control circuit 9 controls the on / off operation of the field effect transistor Q1 of the current adjustment circuit 8 so that the light emitting diode 2 is lit at a predetermined low light intensity (20%). As a result, a predetermined current is supplied from the smoothing capacitor C2 to the light emitting diode 2, and the light emitting diode 2 is turned on at a low luminous intensity (20%) as shown in FIG. Thus, when the human body enters the predetermined area, the light emitting diode 2 is turned on at a predetermined low luminous intensity (20%).

  When the human body that has entered the predetermined area further moves (invades) into the predetermined area, the amount of infrared rays incident on the human sensor 15 changes, and a detection signal is output from the human sensor 15. The detection signal is output again. The main control unit 20 of the control device 5 uses the detection signal for a first elapsed time (for example, 2 seconds) or a predetermined period (for example, a delay time stored in the storage unit 21) after the initial detection signal is input. When an input is made, it is assumed that a human body exists within a predetermined area, and the second relay 23 is energized to short-circuit the normally open contacts 23a1 and 23a2. Thereby, the sine wave alternating voltage of commercial alternating current power supply Vs inputs into the input terminals 10a and 10b of the lighting device 3 via the input terminals 25a and 25b and the output terminals 26a and 26b of the control device 5.

  A DC voltage corresponding to the sine wave AC voltage is generated between both ends of the smoothing capacitor C1 of the lighting device 3. The sine wave AC voltage input to the input terminals 10 a and 10 b is detected by the voltage detection circuit 13 and input to the control circuit 9.

  The control circuit 9 controls the on / off operation of the field effect transistor Q1 of the current adjustment circuit 8 so that the light emitting diode 2 is lit (100%). As a result, the rated current is supplied from the smoothing capacitor C2 to the light emitting diode 2, and the light emitting diode 2 is rated as the luminous flux rapidly rises from the lighting state of a predetermined low luminous intensity (20%) as shown in FIG. Lights on. Thus, when the human body enters the predetermined area, the light emitting diode 2 is lit (100%). The rated lighting is continued for the delay time stored in the storage unit 21 from the time when the human sensor 15 does not detect the human body and the detection signal is not output from the detection device 4.

  In addition, when a human body that has entered the predetermined area leaves the predetermined area within a first elapsed time (for example, 2 seconds) from the point of entry, the amount of incident infrared rays that the human sensor 15 enters changes, and the human A detection signal is output from the sensor 15, and a detection signal is output from the detection device 4. However, the main control unit 20 of the control device 5 uses the detection signal as a first elapsed time (for example, 2 seconds) or a predetermined period (for example, the delay time stored in the storage unit 21) after the initial detection signal is input. ), The second relay 23 is not energized. As a result, a predetermined phase control AC voltage is continuously input to the input terminals 10 a and 10 b of the lighting device 3. The lighting device 3 keeps lighting the light emitting diode 2 at a predetermined low luminous intensity (20%). The light emitting diode 2 is turned off after the delay time stored in the storage unit 21 has elapsed since the time when the human body left the predetermined area.

  As described above, in the illumination control device 1 with a sensor according to the present embodiment, the control device 5 changes the input voltage to the lighting device 3 to a sine wave AC voltage or a predetermined phase control AC voltage so that the human body is in a predetermined region. The light emitting diode 2 is lit at a predetermined low light intensity (20%) at the beginning of entering the interior, and then the human body is within a predetermined area within a first elapsed time (for example, 2 seconds) or a predetermined period (for example, a delay time). Since the light-emitting diode 2 is lit at the time of entering, the light-emitting diode 2 can be continuously lit at a predetermined low intensity when the human body does not completely enter the predetermined area, and the rated light can be turned off. Thereby, it has the effect that wasteful power consumption can be suppressed.

  In addition, when the human body continuously enters the predetermined area, the light emitting diode 2 is lit at a predetermined low light intensity (20%) and then lit at a rated level. It is possible to simplify the above, and to suppress the glare when starting up the luminous flux.

  In the present embodiment, the control device 5 controls the input voltage of the lighting device 3 to a sine wave AC voltage or a predetermined phase control AC voltage, and the rise of the luminous flux of the light emitting diode 2 when the human sensor 15 detects the human body. However, the control device 5 outputs the control signal corresponding to the initial detection signal and the subsequent detection signal to the control circuit 9 of the lighting device 3, and the lighting device 3 has a sinusoidal AC voltage. And the field effect transistor Q1 of the current adjustment circuit 8 may be controlled according to the control signal.

  In addition, the lighting device 3 and the control device 5 are formed so that the light emitting diode 2 is rated-lit when the human body completely enters within a predetermined period. However, the present invention is not limited to this, and the light emitting diode 2 has a predetermined low luminous intensity ( For example, it may be formed so as to be lit at a luminous intensity higher than 20%).

  Next, a second embodiment of the present invention will be described.

  The present embodiment is a sensor-equipped lighting fixture 31 and is configured as shown in FIGS. In addition, the same code | symbol is attached | subjected to the part equivalent to the same part and FIG. 1 as FIG. 1, and description is abbreviate | omitted.

  In FIG. 5, a sensor-equipped lighting fixture 31 is a downlight that is installed by being embedded in a construction such as a ceiling, and includes an LED lamp 32, a fixture body 33, the detection device 4 and the control device 5 shown in FIG. Configured. The sensor-equipped lighting fixture 31 includes a pair of attachment springs 34 and 34 (only one is shown in the figure), and is fixed to the construction by the attachment springs 34 and 34.

  The LED lamp 32 is formed in a flat shape and is disposed in the instrument main body 33. As shown in FIG. 10 (a), the LED lamp 32 has a substantially cylindrical casing in which a transparent protective cover 36 is attached to one end side 35a and a GX53-shaped base part 37 is formed on the other end side 35b. 35, a light emitting body 39 having an LED bare chip 38 as a light emitting diode disposed in the housing 35, and a lighting device 3 for lighting the LED bare chip 38. In the light emitting body 39, a plurality of LED bare chips 38 are mounted in a matrix on one surface of a substrate 40, and a sealing resin (not shown) is provided to cover the LED bare chips 38. The casing 35 is formed of, for example, polybutylene terephthalate (PBT) resin, and the protective cover 36 is molded of, for example, polycarbonate (PC) resin.

  The base part 37 is disposed at a rotational position of 180 ° with respect to the projecting part 41 adjacent to the projecting part 41 and a cylindrical projecting part 41 formed so as to project at the center part of the upper surface 35 c of the housing 35. It consists of a pair of lamp pins 42,42. The pair of lamp pins 42 and 42 are made of, for example, brass, and the tip side is formed in a substantially cylindrical shape with a large diameter, and the input terminals 10 a and 10 b (not shown) of the lighting device 3 by lead wires wired in the housing 35. It is connected to the. A pair of substantially L-shaped key groove portions 43 are formed on the outer peripheral surface 41a of the protruding portion 41 so as to be at a rotational position of 180 °. The key groove portion 43 is fitted into a key convex portion provided in a socket to which the LED lamp 32 is mounted, and fixes the housing 35 to the instrument body 33 through the socket.

  In addition, triangular recesses 44 for increasing the heat radiation area are formed at regular intervals on the outer peripheral surface 35d on the base 37 side of the housing 35. Further, the outer surface 36a of the protective cover 36 is formed in a flat surface, and rectangular parallelepiped finger-hanging portions 45, 45 are formed on the peripheral side thereof. As shown in FIG. 10 (b), the finger hooks 45, 45 are provided with 180 ° rotational symmetry. A triangular mark 46 is formed on the peripheral side of the outer surface 36a to display the mounting position on the instrument body 33.

  In FIG. 6, the instrument body 33 is molded from a synthetic resin such as ABS resin, and has a circular opening 47 on one end side 33 a, and a circular shape that protrudes outward from the periphery of the opening 47 over the circumference of the opening 47. It is formed in a substantially truncated cone shape having a flange portion 48. And the top plate 49 is attached to the upper surface 33c as a top part of the other end side 33b of the instrument main body 33 with screws (not shown).

  As shown in FIG. 6A, four ribs 50 are erected on the lower surface 33 d on the opposite side of the upper surface 33 c of the instrument body 33. As shown in FIG. 6B, a socket 51 to which the LED lamp 32 is mounted is attached to the rib 50 with a screw 52. The socket 51 is made of a synthetic resin such as ABS resin, and is formed in a ring shape having notches 53 and 54 on the outer peripheral side thereof. The socket 51 is provided such that a cylindrical body 56 (shown in FIG. 6A) having a central hole 55 protrudes to the back side (the lower surface 33 d side of the instrument body 33), and 180 around each other around the central hole 55. A pair of dart holes 56 are formed so as to be rotationally symmetric.

  Then, the projecting portion 41 of the LED lamp 32 is inserted into the central hole 55, and the pair of lamp pins 42 and 42 are inserted into the pair of dart holes 56 and 56. When the LED lamp 32 is rotated, the pair of lamp pins 42 and 42 are connected to a pair of receivers (not shown) provided so as to follow the drum holes 56 on the back side of the socket 51.

  Further, a key convex portion (not shown) provided on the cylindrical body 56 is fitted into the key groove portion 43 of the LED lamp 32, and the LED lamp 32 is fixed to the socket 51. A pair of receptacles of the socket 51 are connected to the control device 5 by lead wires (not shown). In other words, an insertion port (not shown) through which the lead wires pass is formed on the lower surface 33 d side of the outer surface 33 e of the instrument body 33. A lead wire connected to the socket 51 is led out from the insertion port and connected to the control device 5. Thus, the instrument main body 33 has the LED lamp 32 disposed inside the other end side 33b.

  And as shown in FIG. 7, as for the instrument main body 33, a pair of attachment springs 34 and 34 are provided in the outer surface 33e side. The appliance main body 33 is attached to the ceiling 57 by sandwiching the ceiling 57 as a construction object by the pair of attachment springs 34 and 34 and the flange portion 48 of the appliance main body 33. In addition, in FIG.5 (b) and FIG. 6, a pair of attachment springs 34 and 34 are abbreviate | omitted.

  Moreover, as shown in FIG. 5, the instrument main body 33 has a top plate 49 attached to its upper surface 33c with screws (not shown). The top plate 49 is made of, for example, a metal flat plate, is formed in a substantially rectangular shape, and a part 49 c of the top plate 49 protrudes to the side of the instrument body 33. That is, the top plate 49 has a protruding portion 49 c that protrudes to the side of the instrument body 33. Part of both ends in the longitudinal direction of the top plate 49 is bent substantially at a right angle.

A pair of terminal blocks 58 and 59 are juxtaposed on the lower surface 49b of the protrusion 49c of the top plate 49, as shown in FIG. That is, an input terminal block 58 connected to a commercial AC power source as an external AC power source and a feed terminal block 59 for connecting the AC power source to the other sensor-equipped lighting fixtures 31 are arranged. ing. The control device 5 is disposed between the pair of terminal blocks 58 and 59. The control device 5 is connected to the pair of terminal blocks 58 and 59 and the socket 51, and receives AC power input to the input terminal block 58.
The detection device 4 is provided on the annular body 60. The annular body 60 is attached to the flange portion 48 of the instrument main body 33 as shown in FIG.

  The annular body 60 is formed of a synthetic resin, for example, ABS resin, in an annular shape having a slightly larger diameter than the flange portion 48 of the instrument body 33 and having a substantially rectangular cross section. And a communication port 61 having substantially the same diameter. The annular body 60 is attached to the flange portion 48 of the instrument body 33 by a screw 63 screwed to the dowel 62. The dowels 62 are formed integrally with the annular body 60 in the annular body 60, and a plurality of dowels 62 are provided in the circumferential direction of the annular body 60.

  As shown in FIG. 8, the annular body 60 has an annular groove 64 that extends along the inner wall surface 60 c and the outer wall surface 60 d. A circular opening 65 communicating with the annular groove 64 is formed on the lower surface 60 b of the annular body 60. In addition, the outer wall surface 60d has a notch 66 that is notched over a predetermined length in the circumferential direction on the upper surface 60a side. The detection device 4 is housed in the annular groove 64.

  The annular body 60 may have a solid structure except for a portion where the detection device 4 is provided. However, from the viewpoint of making the annular body 60 as light as possible, it is preferable that the annular groove 64 is formed over the circumference of the annular body 60.

  As shown in FIG. 1, the detection device 4 includes a human sensor 15, a control unit 16, an output unit 17, and a switch 18, and a portion excluding the human sensor 15 is formed in a sensor unit 67. Yes.

  The human sensor 15 has a light receiving portion 68 and a cover 69 with a lens. The light receiving unit 68 is mounted on, for example, a circular substrate 70 and is covered with a substantially bullet-shaped lens cover 69 attached to the substrate 70. The lens-equipped cover 69 is made of high-density polyethylene and is attached to the substrate 70 by a locking claw (not shown).

  As shown in FIG. 9, the lens-attached cover 69 has a large number of substantially square lens portions 69a formed on the inner surface side. The light receiving unit 68 is formed by a collection of a plurality of small light receiving units (not shown).

  As shown in FIG. 8, the human sensor 15 has a lens-equipped cover 69 protruding from the opening 65 of the annular body 60 to the outside of the lower surface 60b so that the light receiving portion 68 is exposed downward. It is arranged. The human sensor 15 is connected to the sensor unit 67 by the lead wire 71 and outputs a detection signal corresponding to the detection of the human body to the sensor unit 67.

  The sensor unit 67 is formed by mounting an IC component and an electronic component that form the control unit 16 and the output unit 17, and a switch 18 on a circuit board 72. That is, the electric circuit is formed on the circuit board 72 so that the sensor unit 67 outputs a detection signal for controlling the lighting state of the LED lamp 32 to the control device 5 in response to detection of the human body of the human sensor 15. . The sensor unit 67 is connected to the switch 18 and is configured to output a control signal corresponding to the selection of the switch 18 to the control device 5.

  The sensor unit 67 is connected to the control device 5 by a lead wire 73. In FIG. 5, the lead wire 73 is led from the insertion hole (not shown) of the flange portion 48 of the instrument main body 33 to the outer surface 33 e side of the instrument main body 33, arranged along the outer surface 33 e, and the protruding portion of the top plate 49. 49c is connected to the control device 5 disposed on the lower surface 49b side. The lead wire 73 is composed of a plurality of wires. The lead wire 71 is also composed of a plurality of wires.

  As shown in FIG. 8, the switch 18 has a switch body 74 mounted on a circuit board 72 and an operator 75 that is selectively manually operated. The circuit board 72 is formed in an elongated shape along the annular groove 64 and is provided in the annular groove 64. The switch body 74 is mounted on the circuit board 72 so that the operating element 75 is exposed from the notch 66 of the annular body 60 to the outer wall surface 60d. That is, the operating element 75 is provided on the outer wall surface 60 d of the annular body 60 and can be operated from the outside of the annular body 60.

  The switch 18 sets a delay time for turning off the LED lamp 32 from when the human sensor 15 no longer detects a human body. That is, by moving the operation element 74 to the positions (not shown) of “10 seconds”, “1 minute”, and “3 minutes” displayed on the outer wall surface 60d of the annular body 60, the human sensor 15 The timer provided in the control device 5 starts counting from when the human body is no longer detected, and the LED lamp 32 is turned off after the set time.

  Thus, the detection device 4 is accommodated in the annular groove 64 formed inside the annular body 60 and connected to the control device 5. And the detection apparatus 4 is attached to the flange part 48 of the instrument main body 33 by being accommodated in the annular body 60.

  And the human sensor 15 is. As shown in FIG. 7, a human body entering a predetermined area directly below the instrument body 33 is detected. Here, the predetermined area is formed to be somewhat wider than the illumination area illuminated by the direct light of the LED lamp 32 and the reflected light of the instrument body 33.

  Next, the operation of the second exemplary embodiment of the present invention will be described.

  When the human body reaches the vicinity of the boundary of the predetermined region, the human sensor 15 detects the human body, and a detection signal is output from the detection device 4. The control device 5 controls the lighting device 3 so that the LED lamp 32 is lit at a predetermined low light intensity (for example, 20% of rated lighting) according to the detection signal. Thereby, illumination light of a predetermined low luminous intensity is emitted from the opening 47 of the instrument body 33, and the illumination area is illuminated.

  Then, when the human body enters the inside of the predetermined area, the control device 5 controls the lighting device 3 so that the LED lamp 32 is rated-lit according to the detection signal output from the detection device 4 again. Thereby, the illumination area is lit brightly by the illumination light of the rated lighting.

  In addition, when the human body that has reached the predetermined area moves outside the predetermined area without entering the predetermined area, a detection signal of the human body is not output from the detection device 4, so that the control device 5 causes the LED lamp 32 to have a predetermined low light intensity. The lighting device 3 is controlled so as to continuously light up.

  Then, the control device 5 controls the lighting device 3 so that the LED lamp 32 is turned off after a delay time set by the switch 18 from the time when the latest detection signal is input from the detection device 4.

  According to the present embodiment, in the embedded lighting device (downlight) 31 in which the detection device 4 is disposed so that the human sensor 15 is exposed below the flange portion 48, the human sensor 15 detects the human body. When the human body does not completely enter the predetermined area to be detected, the LED lamp 32 is lit at a predetermined low light intensity for a set delay time, so that the power consumption is reduced as compared with the rated lighting of the LED lamp 32. This has the effect of suppressing wasteful power consumption.

  In the present embodiment, the human sensor 15 does not have to be provided so as to protrude from the lower surface 60b of the annular body 60 as long as it can detect the human body that is the detection target, and in the annular groove 64 so as to face the opening 65. May be provided. Further, although the GX53-type LED lamp 32 has been described as the light source, the present invention is not limited thereto, and any light source that emits illumination light of the light-emitting diode 2 such as an LED bulb may be used.

  Next, a third embodiment of the present invention will be described.

  11 and 12 show a third embodiment of the present invention, FIG. 11 is a schematic perspective view of a lighting fixture with a sensor, and FIG. 12 shows a lighting fixture with a sensor when a tubular light-emitting lamp is not attached. It is a part notch schematic side view. In addition, the same code | symbol is attached | subjected to the part equivalent to the same part and FIG. 1 as FIG. 1, and description is abbreviate | omitted.

  In FIG. 11, a sensor-equipped lighting fixture 81 is installed on the ceiling surface, and includes a fixture main body 82, the lighting control device 1 shown in FIG. A control device 5 is provided. The instrument main body 82 is formed of a cold rolled steel plate or the like, and has a known configuration in which a conventional straight tube fluorescent lamp is mounted except for the sockets 84 and 85.

  The straight tube type LED lamp 83 is a long cylindrical light-transmitting straight tube bulb 86 in which the light-emitting diode 2 (not shown) is disposed, and the straight tube bulb 86 is provided at both ends in the longitudinal direction. Bases 87 and 88 are provided. The light emitting diode 2 is mounted on a long substrate and accommodated in a straight tube bulb 86.

  The appliance body 82 has a pair of sockets 84 and 85 to which two straight tube LED lamps 83 are attached and detached at both longitudinal ends 82a and 82b. One socket 84 is formed in a structure in which a pair of power supply contacts (not shown) provided on the base 87 of the straight tube LED lamp 83 are inserted and connected. The other socket 85 is formed in a structure in which one ground contact (not shown) provided on the base 88 of the straight tube LED lamp 83 is inserted and connected.

  And as shown in FIG. 12, the instrument main body 82 is provided with the base 89 attached to the ceiling surface with the screw etc. which are not shown in figure, and the reflector 91 fixed to the instrument main body 82 with the screw 90. As shown in FIG. The base 89 is formed in a long and substantially rectangular shape, and the reflector 91 is formed in a box shape that is long and has a substantially pentagonal cross section perpendicular to the longitudinal direction.

  The lighting device 3, the detection device 4, and the control device 5 are attached to a base 89 and wired as shown in FIG. In addition, the human sensor 15 is attached to the reflector 91 so as to be exposed downward in the center portion in the longitudinal direction of the reflector 91 and in the center portion in the lateral direction.

  In the lighting device 3, a pair of output wires (not shown) are connected to one socket 84, and a ground wire (not shown) is connected to the other socket 85. Thus, the straight tube LED lamp 83, the lighting device 3, the detection device 4, and the control device 5 are arranged in the instrument main body 82.

  When the human body does not completely enter the predetermined area after the human sensor 15 detects the human body, the sensor-equipped lighting fixture 81 according to the present embodiment causes the straight tube LED lamp 83 to pass through the predetermined delay time for a predetermined delay time. Since the light is lit at a low luminous intensity, there is an effect that wasteful power consumption due to the human body not entering the predetermined area can be suppressed.

  The sensor-equipped lighting fixture 81 has been described as a direct-mounted lighting fixture installed on a ceiling or the like, but is not limited thereto, and may be a hanging lighting fixture.

  DESCRIPTION OF SYMBOLS 1 ... Lighting control apparatus with a sensor, 2 ... Light emitting diode, 3 ... Lighting apparatus, 4 ... Detection apparatus, 5 ... Control apparatus, 31, 81 ... Lighting fixture with a sensor, 33, 82 ... Instrument main body

Claims (2)

A light emitting diode;
A lighting device for lighting the light emitting diode;
A detection device that outputs a detection signal in response to detection of a human body;
The light emitting diode is turned on at a predetermined low light intensity when the detection device detects that a human body has entered a predetermined area, and the light emission is performed when the detection device detects the human body again within a predetermined period thereafter. A control device that controls the lighting device to light a diode at a light intensity higher than the low light intensity;
An illumination control device with a sensor, comprising: An illumination control device with a sensor according to claim 1;
An instrument body in which the lighting control device is disposed;
A sensor-equipped luminaire characterized by comprising:

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