Lighting fixtures

Abstract

To provide a lighting device which can use a frame, which is also used in a lighting device with no sensor, to have a sensor function.SOLUTION: A lighting device 11 includes: a light source part 21; a power supply part 31 which supplies electric power to the light source part 21; a sensor unit 41 which is attached to the light source part 21 and in which a sensor part 46 is disposed at the radiation direction side of the light source part 21; and a frame 51 having an opening 52 which radiates light from the light source part 21 and a reflection plate part 53 which reflects light to a periphery of the opening 52. The sensor unit 41 is arranged so as to overlap partially with the opening 52 and along the reflection plate part 53 when viewed from the radiation direction side.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lighting fixture. [Background technology]

[0002] Patent Document 1 discloses a lighting fixture that includes a sensor detection section (sensor unit) provided on a reflector (frame).

[0003] The lighting fixture disclosed in Patent Document 1 has a reflector that covers the periphery of a light source (light source unit) and is removably attached to the fixture body, and a sensor detection unit that is arranged near the periphery of a light-transmitting opening of the reflector. This lighting fixture is configured so that the sensor detection unit can be attached to a hole provided in the reflector. This lighting fixture can be equipped with a sensor function while maintaining approximately the same shape as a lighting fixture without a sensor. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-007127 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the lighting fixture of Patent Document 1, a hole for attaching a sensor detection unit is provided in the reflector, and the structure of the reflector is different from that of lighting fixtures without a sensor. Therefore, in this lighting fixture, it was necessary to use a reflector different from that of lighting fixtures without a sensor.

[0006] Therefore, the present invention has been made in consideration of the above problems, and has an object to provide a lighting fixture that can be equipped with a sensor function using a frame that is common to lighting fixtures without a sensor. [Means for solving the problem]

[0007] The problem to be solved by the present invention has been described above, and the means for solving this problem will now be described.

[0008] That is, the lighting fixture disclosed in the present application has: A light source unit; A power supply unit that supplies power to the light source unit; A sensor unit is attached to the light source unit and disposed on the side of the light source unit in the irradiation direction. A sensor unit having a An opening for irradiating light from the light source unit and a reflector for reflecting the light around the opening A lighting fixture comprising: a frame having a plate portion; The sensor unit is arranged to overlap the opening when viewed from the irradiation direction side. It is arranged along the reflector. 、 the sensor unit has a wire passage portion through which an electric wire is inserted to electrically connect the sensor unit and the power supply portion, The wire-passing portion has a protruding piece portion that protrudes outward in a side view, and is disposed on an opposite side to an irradiation direction side of the light source portion, The protruding piece is disposed so as to overlap at least a portion of the frame when the light source unit is attached to the frame. It is something.

[0009] In the lighting fixture disclosed in the present application, The sensor unit is preferably attached to the outer periphery of the light source section.

[0010] In the lighting fixture disclosed in the present application, It is preferable that the sensor unit has a planar erected surface extending from the light source section toward the irradiation direction, and two side surfaces extending from both ends of the erected surface in a direction perpendicular to the irradiation direction to the reflector section so as to form an obtuse angle with respect to the erected surface in a plan view.

[0011] In the lighting fixture disclosed in the present application, It is preferable that the sensor unit can be temporarily fixed to the light source unit in a state where the sensor unit is disposed on the side of the light source unit.

[0012] In the lighting fixture disclosed in the present application, an elastic member is disposed between the sensor unit and the frame; It is preferable that the sensor unit is attached to the frame via the elastic member, and is thereby pressed against the reflector portion.

[0014] In the lighting fixture disclosed in the present application, The lighting fixture is a recessed lighting fixture and has a mounting spring for mounting to a mounting surface, The sensor unit is preferably disposed at a position not adjacent to the mounting spring. Effect of the Invention

[0015] According to the present invention, it is possible to provide a lighting fixture that can be equipped with a sensor function by using a frame common to lighting fixtures without a sensor. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view showing a lighting fixture according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] Cross-sectional view taken along line AA in FIG. 2. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 13 is a perspective view of the sensor unit temporarily attached to the light source unit, as viewed obliquely from above. [Figure 7] FIG. 13 is a perspective view of the sensor unit temporarily attached to the light source unit, as viewed obliquely from below. [Figure 8] 5A and 5B are diagrams showing an elastic member, in which FIG. 5A is a perspective view seen from diagonally above, and FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A lighting fixture 11 according to an embodiment of the present invention will be described with reference to Figs. 1 to 8. The lighting fixture 11 according to this embodiment is a downlight equipped with a sensor unit 41. The downlight is embedded in a mounting surface such as a ceiling, which is a mounting portion. In the following description, the side of the lighting fixture 11 that emits light is referred to as the illumination direction side of the lighting fixture 11, and the side of the lighting fixture 11 that faces the mounting portion is referred to as the mounting surface side (opposite the illumination direction side) of the lighting fixture 11. In addition, the up-down direction of the lighting fixture 11 in Figs. 3 to 5 will be described as the up-down direction of the lighting fixture 11. A direction perpendicular to the up-down direction will be described as the side. In the following description, the lighting fixture 11 viewed from below will be referred to as a planar view. The lighting fixture 11 viewed from a direction perpendicular to the up-down direction will be referred to as a side view. The cross-sectional shape of the lighting fixture 11 will be referred to as a cross-sectional view.

[0018] The downlight described in this embodiment is an example of a lighting fixture according to the present invention. The type of lighting fixture is not limited to that described in this embodiment, and may be, for example, a ceiling light (a light directly attached to the ceiling), a bracket light (a light directly attached to the wall), an indirect light, etc., in addition to the downlight. Also, the shape of the underside of the lighting fixture may be, for example, elongated or rectangular, in addition to the circular shape described in this embodiment.

[0019] As shown in FIGS. 1 and 3, the lighting fixture 11 mainly includes a light source section 21, a power supply section 31, a sensor unit 41, a frame 51, and an attachment spring 71.

[0020] The light source unit 21 emits light. The light source unit 21 has an LED (Light Emitting Diode) 22 as a semiconductor light emitting element, a reflector unit 23, and a panel 24. The light source unit 21 is attached so that the circular light emitting portion of the LED 22 is exposed from the upper opening of the reflector unit 23. The LED 22 is attached to the lower surface side of a substantially circular heat sink 26 via an insulating sheet 25. The heat sink 26 is formed using a material with high thermal conductivity in order to dissipate heat generated from the LED 22. The heat sink 26 of this embodiment is made of aluminum, but is not limited to this, and may be made of metal materials other than aluminum, resin materials, etc., or a combination of these materials, as long as the desired thermal conductivity and strength can be ensured. The heat generated by the LED 22 is transferred to the heat sink 26, and a part of it is further transferred to the frame 51 and dissipated into the air above the heat sink 26 and around the frame 51. The reflector unit 23 is a flat bowl shape that is substantially circular in plan view and has an open upper part. The reflector 23 is provided with a claw 27 to which the sensor unit 41 is attached (see FIG. 6). The claw 27 is formed to protrude radially outward. In this embodiment, the claw 27 is formed in a substantially U-shape when viewed from above. Note that the LED 22 in this embodiment is a COB (Chip On Board) type light emitting module, but may be an SMD (Surface Mount Device) type light emitting module, an organic EL element, or the like.

[0021] The panel 24 distributes light from the light source unit 21 to the outside while reflecting and diffusing the light. The panel 24 is provided so as to cover the irradiation direction side of the light source unit 21. The panel 24 is formed in a dome shape that is circular in plan view and protrudes downward. The panel 24 has a cutout 28 through which the sensor unit 41 is inserted at the outer periphery (see FIG. 7). In this embodiment, the cutout 28 is formed in a U-shape in plan view. The panel 24 is placed on the upper side of the opening 52 via a circular elastic member (packing) 92. The elastic member (packing) 92 seals the gap between the panel 24 and the upper side of the opening 52. The elastic member 92 in this embodiment is formed of, for example, silicone rubber. The panel 24 may be a polygonal shape such as a square shape in plan view. The panel 24 may also be a shape that protrudes upward or a flat shape.

[0022] The power supply unit 31 supplies power to the light source unit 21. The power supply unit 31 has a power supply circuit board 32 and a power supply box 33 (33a, 33b). The power supply circuit board 32 is arranged inside the power supply box 33. The power supply circuit board 32 has electrical components mounted thereon that constitute a power supply circuit, a dimming circuit, and the like. The power supply circuit includes a circuit that converts AC current obtained from an external power supply into DC current. The dimming circuit controls the amplitude or phase of the current to adjust the amount of current supplied to the LED 22. The power supply unit 31 switches the light source unit 21 on and off and changes the illuminance of the light source unit 21 based on a detection signal transmitted from the sensor unit 46 of the sensor unit 41.

[0023] The power supply box 33 is disposed on the upper surface side of the heat sink 26. The power supply box 33 is formed using a material with high thermal conductivity in order to dissipate heat generated from the power supply circuit board 32. The heat generated from the power supply circuit board 32 is transferred to the power supply box 33 and dissipated into the air outside the power supply box 33. The power supply box 33 is composed of a base portion 33a that is generally U-shaped when viewed from the side, and a cover portion 33b that is generally U-shaped when viewed from the side and covers the upper part of the base portion 33a.

[0024] As shown in Fig. 2, a terminal block 34 for connecting to an external power source is disposed on the side of the power source box 33. An electric wire (not shown) from the external power source is electrically connected to the terminal block 34. The power source unit 31 is electrically connected to the external power source via the terminal block 34 and a ceiling wiring device (not shown) for the lighting fixture 11. The light source unit 21 and the power source unit 31 are electrically connected via an electric wire 35 (see Fig. 3). The power source unit 31 and the sensor unit 41 are electrically connected via an electric wire (not shown).

[0025] The sensor unit 41 is, for example, a human presence sensor that detects the presence of a human being. As shown in Fig. 6, the sensor unit 41 is attached to the light source section 21. The configuration of the sensor unit 41 will be described in detail later.

[0026] As shown in Fig. 5, frame 51 constitutes the illumination direction side of lighting fixture 11. Frame 51 has opening 52, reflector 53, and flange 54. When lighting fixture 11 is installed on, for example, a ceiling surface, frame 51 comes into contact with the ceiling surface via annular elastic member (packing) 91. Elastic member 91 is attached along flange 54. Elastic member 91 in this embodiment is formed of, for example, silicone rubber.

[0027] The opening 52 is for emitting light from the light source unit 21. The opening 52 is disposed on the irradiation direction side of the light source unit 21. The opening 52 is formed in a circular shape. Note that the opening 52 may have a polygonal shape such as a rectangle when viewed from above.

[0028] The reflector portion 53 reflects the light irradiated from the opening portion 52. The reflector portion 53 is disposed on the irradiation direction side of the opening portion 52. The reflector portion 53 is formed in a shape that gradually widens from the opening portion 52 toward the irradiation direction side. The frame 51 is provided with a flange portion 54 that extends radially outward from the reflector portion 53.

[0029] Next, a detailed description will be given of the configuration of the sensor unit 41. As shown in Fig. 4 and Fig. 5, the sensor unit 41 has an erected surface 42, a side surface 43, an opposing surface 44, and an irradiation surface 45.

[0030] The standing surface 42 is a substantially rectangular planar surface extending from the light source unit 21 toward the irradiation direction. The side surface 43 is a substantially triangular planar surface extending from both ends of the standing surface 42 in a direction perpendicular to the irradiation direction to the reflecting plate unit 53. Two side surfaces 43 are provided, and are radially extended in a plan view, and are formed to form an obtuse angle with respect to the standing surface 42. The opposing surface 44 is a surface formed on the outer periphery side of the two side surfaces 43. The opposing surface 44 has a shape such that its upper end is along the opening 52. In addition, the opposing surface 44 has a shape such that it is along the reflecting plate unit 53, and faces the reflecting plate unit 53. The opposing surface 44 of this embodiment abuts against the reflecting plate unit 53. The irradiation surface 45 is a substantially trapezoidal surface in a plan view provided on the irradiation direction side of the standing surface 42, the side surface 43, and the opposing surface 44. The irradiation surface 45 has a sensor unit 46 in its center. The sensor unit 46 in this embodiment is a human sensor that detects a change in the amount of heat rays (infrared rays) emitted from a human being, etc. The sensor unit 46 may be, for example, an ultrasonic sensor, a radio wave sensor, or the like.

[0031] 2, the sensor unit 41 is disposed such that the erected surface 42 and one end of the inner periphery of each of the two side surfaces 43 overlap the opening 52 when viewed from the irradiation direction side (in a plan view). Also, as shown in Fig. 3, the sensor unit 41 is disposed such that the opposing surface 44 is along the inner periphery surface of the reflector portion 53. That is, the sensor unit 41 is disposed such that a portion of the sensor unit 41 overlaps with the opening 52 and is along the inner periphery surface of the reflector portion 53 when viewed from the irradiation direction side.

[0032] As shown in FIGS. 6 and 7, the sensor unit 41 has a wire-connecting portion 47.

[0033] The wire passage portion 47 is a portion through which an electric wire that electrically connects the power supply portion 31 and the sensor unit 41 is inserted. The wire passage portion 47 is arranged on the upper side of the sensor portion 46 so as to be aligned with the light source portion 21 in a side view. The wire passage portion 47 has a pair of protruding pieces 48 that protrude outward (to the right side in FIG. 3) in a side view. The protruding pieces 48 are arranged so that at least a part of them overlaps with the frame 51 in a state in which the light source portion 21 is attached to the frame 51. The protruding pieces 48 have a plate-like shape, and an engagement hole 48a is provided on the lower side with which the claw portion 27 (tip portion 27a) is engaged. A wiring outlet 48b is provided between the pair of protruding pieces 48, and an electric wire can be inserted therethrough. The protruding pieces 48 are formed with protruding parts 48c that protrude so as to face each other on the upper side, and are configured so that the electric wire inserted into the wiring outlet 48b is less likely to come off the wiring outlet 48b.

[0034] The light source unit 21 has a claw portion 27. The claw portion 27 is disposed on the outer periphery of the light source unit 21. A pair of the claw portions 27 are provided facing each other and extend toward the radially outer side of the light source unit 21. The pair of claw portions 27 protrude so that their respective tip portions 27a face each other. The pair of claw portions 27 can engage the tip portions 27a with the engagement holes 48a of the protruding pieces 48 of the sensor unit 41. The pair of claw portions 27 sandwich the pair of protruding pieces 48 from the outside, and temporarily fix the sensor unit 41 by engaging the tip portions 27a with the engagement holes 48a corresponding to the respective tip portions 27a. That is, the sensor unit 41 can be temporarily fixed to the light source unit 21 in a state in which the protruding pieces 48 are disposed on the side of the light source unit 21. As a result, the sensor unit 41 is supported at one end of the light source unit 21. The claw portion 27 may be provided on the upper surface side of the frame 51 instead of being provided on the light source unit 21. This allows the sensor unit 41 to be temporarily fixed to the frame 51 with the protruding piece 48 disposed on the upper surface side of the frame 51 .

[0035] After the sensor unit 41 is temporarily fixed to the light source unit 21, the frame 51 is attached via the elastic member 61. As shown in FIG. 4, for example, the through hole 33b1 of the cover portion 33b corresponds to the through hole 26a of the heat sink 26 and the screw hole 51a of the frame 51. The mounting member 36 can be inserted into the through hole 33b1 of the cover portion 33b and the through hole 26a of the heat sink 26 and screwed into the screw hole 51a of the frame 51. The mounting member 36 tightens the light source unit 21, the power supply unit 31, and the frame 51 together, and the sensor unit 41 is sandwiched and fixed by the light source unit 21, the frame 51, and the elastic member 61. That is, the sensor unit 41 is attached to the outer periphery side of the light source unit 21.

[0036] 3, in the sensor unit 41, a groove portion 49 having a wedge shape in cross section is formed between the opposing surface 44 and the protruding piece portion 48 so as to follow the opening 52. In the sensor unit 41, a peripheral portion 52a of the opening 52 of the frame 51 can be disposed in the groove portion 49.

[0037] As shown in FIG. 8, the elastic member 61 has an insertion hole 62 through which the wire-passing portion 47 can be inserted. The insertion hole 62 is formed corresponding to the shape of the lower end of the wire-passing portion 47. The elastic member 61 has a pressing surface 63 having a band shape in a plan view on its upper surface, and a notch holding portion 64 formed in a substantially U-shape in a plan view from both ends of the pressing surface 63 in the longitudinal direction toward the light source unit 21. The notch holding portion 64 is formed so as to surround a part of the insertion hole 62, and is inclined downward as it approaches the light source unit 21. The notch holding portion 64 is a portion that abuts against the notch 28 when the sensor unit 41 is temporarily fixed to the light source unit 21. The sensor unit 41 has the wire-passing portion 47 inserted into the insertion hole 62 and is attached to the frame 51 via the elastic member 61, so that the notch holding portion 64 abuts against the notch 28 and the lower end of the protruding piece portion 48 is pressed upward by the pressing surface 63. In the present embodiment, the pressing surface 63 of the elastic member 61 is inclined upward toward the outer periphery (the side away from the light source unit 21). In the present embodiment, the inclination angle θ is, for example, 1°. This applies a force that presses the wire passage portion 47 side of the sensor unit 41 slightly radially inward, with the reflector portion 53 (peripheral portion 52a) as a fulcrum. This makes the sensor unit 41 less likely to rattle, and also makes it less likely for a gap to occur between the opposing surface 44 and the reflector portion 53, improving airtightness.

[0038] The lighting fixture 11 in this embodiment is a recessed lighting fixture. As shown in FIG. 2, the lighting fixture 11 includes mounting springs 71 for mounting to a mounting surface. The mounting springs 71 are fixed so as to face each other across the light source unit 21 in a plan view. The sensor unit 41 in this embodiment is disposed at a position equally spaced apart from the two mounting springs 71. That is, the sensor unit 41 is disposed at a position not adjacent to the mounting springs 71. The mounting springs 71 are formed by bending a metal plate made of stainless steel or the like. The shape, mounting position, number, etc. of the mounting springs 71 are not limited.

[0039] Here, a part of the assembly procedure of the lighting device 11 in this embodiment will be described. Note that the assembly procedure described below is one example, and the order of each step may be appropriately selected. First, the light source section 21 and the sensor unit 41 are assembled and temporarily fixed. More specifically, the LEDs 22 are placed on the lower surface side of the heat sink 26 via the insulating sheet 25. The reflector section 23 is placed so as to correspond to the LEDs 22, and the reflector section 23 is fixed to the heat sink 26. The panel 24 is placed so that the claws 27 of the reflector section 23 correspond to the notches 28 of the panel 24. The wire-passing sections 47 of the sensor unit 41 are inserted into the claws 27 and the notches 28, and the tip sections 27a of the claws 27 are engaged with the engagement holes 48a of the protruding pieces 48, temporarily fixing the sensor unit 41 to the light source section 21. Next, the elastic member 92 is placed on the upper surface side of the frame 51 , the sensor portion 46 of the sensor unit 41 is inserted through the opening 52 of the frame 51 , and the sensor unit 41 is placed so that the opposing surface 44 is aligned with the inner circumferential surface of the reflector portion 53 . Next, the power supply circuit board 32 is electrically connected to the electric wires (not shown) connecting to the LEDs 22 and the electric wires (not shown) connecting to the sensor unit 46. The base 33a of the power supply box 33 is placed on the upper surface side of the heat sink 26, and the power supply circuit board 32 is placed at a predetermined position on the base 33a. The cover part 33b is placed at a predetermined position from the upper surface side of the base 33a, and the cover part 33b and the heat sink 26 are simultaneously attached to the frame 51 using the attachment member 36. Next, the mounting spring 71 and the heat sink 26 are attached to the frame 51 at the same time using mounting members such as screws.

[0040] The lighting fixture 11 according to the present embodiment described above includes a light source section 21, a power supply section 31 that supplies power to the light source section 21, a sensor unit 41 that is attached to the light source section 21 and has a sensor section 46 disposed on the irradiation direction side of the light source section 21, and a frame 51 that has an opening section 52 that irradiates light from the light source section 21 and a reflector section 53 that reflects light around the opening section 52. When viewed from the irradiation direction side, the sensor unit 41 is disposed so as to overlap a part of the opening section 52 and to follow the reflector section 53. This allows the sensor unit 41 to be disposed in an exposed state without providing a hole for the sensor unit 41 inside the reflector section 53, and therefore the sensor function can be provided using the frame 51 that is common to the lighting fixture without a sensor.

[0041] In addition, in the lighting fixture 11 according to this embodiment, the sensor unit 41 is attached to the outer periphery of the light source section 21. This makes it difficult to unevenly distribute the position of the light source (LEDs 22) and makes it easier to dispose the light source in the center with respect to the reflector section 53.

[0042] In addition, in the lighting fixture 11 according to the present embodiment, the sensor unit 41 has a planar erected surface 42 extending from the light source unit 21 toward the irradiation direction, and two side surfaces 43 extending from both ends of the erected surface 42 in a direction perpendicular to the irradiation direction to the reflector unit 53 so as to form an obtuse angle with the erected surface 42 in a plan view. As a result, since the light emitted from the light source unit 21 hits the planar erected surface 42, there is less likely to be a high-luminance portion than when the erected surface 42 has a shape having a vertex in a plan view (V-shaped or U-shaped), and glare can be reduced. In addition, since the two side surfaces 43 are provided so as to extend from the end of the erected surface 42 toward the peripheral edge of the reflector unit 53, there is less chance of shadowing than when the side surfaces 43 are formed substantially perpendicular to the erected surface 42, and uniform light emission can be obtained.

[0043] Furthermore, in the lighting fixture 11 according to this embodiment, the sensor unit 41 can be temporarily fixed to the light source unit 21 while being disposed on the side of the light source unit 21. This allows the sensor unit 41 to be temporarily fixed to the light source unit 21 without using any additional mounting members such as screws when assembling the lighting fixture 11, thereby improving the ease of assembly of the lighting fixture 11.

[0044] Furthermore, in lighting fixture 11 according to this embodiment, elastic member 61 is disposed between sensor unit 41 and frame 51, and sensor unit 41 is attached to frame 51 via elastic member 61, and is pressed against reflector portion 53. This prevents a gap from occurring between sensor unit 41 and reflector portion 53, and prevents sensor unit 41 from rattling.

[0045] Furthermore, in lighting fixture 11 according to this embodiment, sensor unit 41 has wire-passing portion 47 through which an electric wire is inserted to electrically connect sensor unit 41 and power supply unit 31. Wire-passing portion 47 has protruding piece portion 48 that protrudes outward in a side view, and is disposed on the opposite side to the irradiation direction side of light source unit 21. Protruding piece portion 48 is disposed so that at least a portion of protruding piece portion 48 overlaps with frame 51 when light source unit 21 is attached to frame 51. As a result, sensor unit 41 has a structure that clamps a portion of frame 51, and therefore sensor unit 41 is less likely to fall off or become displaced even when pulled downward.

[0046] Furthermore, lighting fixture 11 according to this embodiment is a recessed lighting fixture and has mounting spring 71 for mounting to a mounting surface, and sensor unit 41 is disposed in a position not adjacent to mounting spring 71. As a result, when a worker grasps mounting spring 71 so that mounting spring 71 is close to frame 51 during the work of mounting lighting fixture 11 to a mounting surface, sensor section 46 is less likely to come into contact with the worker's hand, preventing inadvertent contact with sensor section 46 and improving the ease of installation of lighting fixture 11.

[0047] Furthermore, in lighting fixture 11 according to this embodiment, sensor unit 41 can be aligned along opening 52, and part of frame 51 can be disposed in groove 49. This allows sensor unit 41 to be disposed in an exposed state without providing a hole for sensor unit 41 inside reflector portion 53, so that a sensor function can be provided by using frame 51 that is common to lighting fixtures without a sensor.

[0048] In addition, in lighting fixture 11 according to this embodiment, sensor unit 41 has a shape that fits along reflector section 53. This allows sensor unit 41 to be attached to the outer periphery of light source section 21. This makes it possible to block light from light source section 21 and prevent any shaded areas from occurring.

[0049] Furthermore, in lighting fixture 11 according to this embodiment, sensor unit 41 can be temporarily fixed to frame 51. This allows sensor unit 41 to be temporarily fixed to frame 51 without using additional mounting members such as screws when assembling lighting fixture 11, thereby improving the ease of assembly of lighting fixture 11.

[0050] The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 8). However, the present invention is not limited to the above-mentioned embodiments, and can be implemented in various forms without departing from the spirit of the present invention. Furthermore, the shapes and the like shown in the above-mentioned embodiments are merely examples and are not particularly limited, and various modifications are possible without substantially departing from the effects of the present invention. [Explanation of symbols]

[0051] 11 Lighting equipment 21 Light source section 31 Power supply section 41 Sensor unit 42 Standing surface 43 Side 46 Sensor section 47 Wire section 48 Projecting piece 51 slots 52 Opening 53 Reflector section 61 Elastic member 71 Mounting spring

Claims

1. A light source unit; A power supply unit that supplies power to the light source unit; a sensor unit attached to the light source unit and having a sensor unit disposed on the side of the light source unit in the irradiation direction; A lighting device comprising: an opening for irradiating light from the light source unit; and a frame having a reflector unit around the opening for reflecting the light, the sensor unit is disposed so as to overlap a part of the opening and to be aligned along the reflector when viewed from the irradiation direction side, the sensor unit has a wire passage portion through which an electric wire is inserted to electrically connect the sensor unit and the power supply portion, The wire-passing portion has a protruding piece portion that protrudes outward in a side view, and is disposed on an opposite side to an irradiation direction side of the light source portion, The protruding piece is positioned so that at least a portion of the protruding piece overlaps with the frame when the light source unit is attached to the frame.

2. The lighting device according to claim 1 , wherein the sensor unit is attached to an outer periphery of the light source unit.

3. 3. The lighting fixture as described in claim 1 or claim 2, wherein the sensor unit has a planar erected surface extending from the light source section toward the irradiation direction, and two side surfaces extending from both ends of the erected surface in a direction perpendicular to the irradiation direction to the reflector section so as to form an obtuse angle with respect to the erected surface in a planar view.

4. The lighting device according to claim 1 , wherein the sensor unit is capable of being temporarily fixed to the light source unit in a state in which the sensor unit is disposed on a side of the light source unit.

5. an elastic member is disposed between the sensor unit and the frame; The lighting fixture according to claim 1 , wherein the sensor unit is attached to the frame via the elastic member, and is thereby pressed against the reflector portion.

6. The lighting fixture is a recessed lighting fixture and has a mounting spring for mounting to a mounting surface, The lighting fixture according to claim 1 , wherein the sensor unit is disposed at a position not adjacent to the mounting spring.

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