Lighting device

Abstract

To provide an illuminating device that can prevent a decrease in workability.SOLUTION: An illuminating device comprises a long appliance body, a long light source unit 30, attachment springs 37, an auxiliary function unit 31, and a wire holding part 95. The fitting springs 37 are provided on both end sides of the light source unit 30 in a longitudinal direction, and detachably attach the light source unit 30 to the appliance body. The auxiliary function unit 31 is arranged on an end part of the light source unit 30 in the longitudinal direction. The wire holding part 95 holds a wire 90 arranged on the side of the auxiliary function unit 31 and the side of the light source unit 30, outside the range of motion of the attachment springs 37.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] Embodiments of the present invention relate to a lighting device.

Background Art

[0002] Conventionally, there has been known a lighting device including an elongated fixture main body and an elongated light source unit attached to the fixture main body, with a camera disposed on one end side of the light source unit in the longitudinal direction.

[0003] In such a lighting device, wirings such as a power supply line that supplies power to the camera and a signal line for control and communication are connected; however, during installation, if these wirings hinder the attachment of the light source unit to the fixture main body, there is a concern that installation workability may degrade.

Prior Art Literature

Patent Literature

[0004]

Patent Literature 1

Summary of the Invention

Problem to be Solved by the Invention

[0005] The problem to be solved by the present invention is to provide a lighting device capable of preventing degradation of installation workability.

Means for Solving the Problem

[0006] The lighting device of an embodiment includes an elongated fixture main body, an elongated light source unit, attachment springs, an auxiliary function unit, and a wiring holding portion. The attachment springs are provided on both end sides of the light source unit in the longitudinal direction, and detachably attach the light source unit to the fixture main body. The auxiliary function unit is disposed at an end portion of the light source unit in the longitudinal direction. The wiring holding portion holds a wiring arranged across the auxiliary function unit side and the light source unit side outside the movable range of the attachment spring.

Effect of the Invention

[0007] According to the lighting device of this embodiment, it is expected that a decrease in ease of installation can be prevented. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting device showing one embodiment. [Figure 2] This is a disassembled perspective view of the same lighting device. [Figure 3] This is a cross-sectional view of the same lighting device as shown in Figure 5A-A. [Figure 4] This is a side view showing the fixture body of the same lighting device in cross-section during installation and removal. [Figure 5] This is a side view showing the installation state of the fixture body of the same lighting device in cross-section. [Figure 6] This is a perspective view of the light source section with auxiliary functions of the same lighting device. [Figure 7] This is a perspective view of the light source unit with auxiliary functions as described above. [Figure 8] This is a perspective view with a portion of the above-mentioned light source unit with auxiliary functions omitted. [Modes for carrying out the invention]

[0009] One embodiment will be described below with reference to the drawings.

[0010] Figures 1 to 5 show the lighting device 10. The lighting device 10 is a long base light, and is a ceiling-mounted lighting device that is installed on an installation surface, such as a ceiling.

[0011] The lighting device 10 comprises a long fixture body 11 installed on the ceiling surface and a long auxiliary light source unit (auxiliary light source unit) 12 that is detachably attached to the lower side of the fixture body 11.

[0012] The main body of the device 11 is made of a magnetic metal, for example, sheet metal, and is formed in an elongated shape. The main body of the device 11 has an elongated top plate portion 15, side plate portions 16 provided on both sides in the width direction which is the short direction intersecting the longitudinal direction of the top plate portion 15, and end plate portions 17 provided at both ends in the longitudinal direction relative to the top plate portion 15 and the side plate portions 16, and is formed in an elongated box shape with the bottom side open.

[0013] A wiring hole 19 for inserting power lines is provided approximately in the center of the longitudinal direction of the top plate portion 15. Near both ends of the longitudinal direction of the top plate portion 15, a number of mounting holes 20 are provided for mounting to a ceiling surface, including elongated holes and rounded holes that are long in the longitudinal direction of the top plate portion 15.

[0014] Mounting edges 16a and 17a are provided on the lower edges of the side plate portion 16 and the end plate portion 17, respectively, to which the upper surface of the auxiliary light source portion 12 abuts and is attached. The mounting edge 17a of the end plate portion 17 is bent in a roughly L-shape so as to protrude from the lower edge of the end plate portion 17 toward the longitudinal center of the fixture body 11.

[0015] Inside the fixture body 11, a terminal block 21 is positioned near one end of the top plate 15 in the longitudinal direction relative to the wiring hole 19. Power lines, which are drawn into the fixture body 11 from the outside through the wiring hole 19, are electrically connected to the terminal block 21. The power lines supply AC power, which is external power from, for example, a commercial AC power source. One end each of the power supply lines 22 for the light source and the power supply lines 22 for auxiliary functions, which are wired along the inside of the fixture body 11, are connected to the terminal block 21. The power supply lines 22 are wired toward one end of the fixture body 11 in the longitudinal direction, and a connector 23 is connected to the end of the power supply line.

[0016] A light source power supply 24 is disposed in the fixture main body 11, near the other end in the longitudinal direction of the top plate portion 15 on the opposite side of the wiring hole 19 from the terminal block 21. The other end side of the light source power supply line from the terminal block 21 is electrically connected to the power input portion of the light source power supply 24. The light source power supply 24 is, for example, an AC-DC converter, which converts AC power supplied from a commercial AC power supply through the terminal block 21 into predetermined lighting power such as DC power, and supplies the converted power to the light source module included in the light source unit with auxiliary function 12. One end side of a lighting power supply line on the main body side wired along the inside of the fixture main body 11 is electrically connected to the lighting power output portion of the light source power supply 24. The other end side of the lighting power supply line on the main body side is drawn out from the other end side of the fixture main body 11, and is connector-connected to a lighting power supply line on the unit side connected to the light source module included in the light source unit with auxiliary function 12.

[0017] In the fixture main body 11, spring receiving members 25 for detachably attaching the light source unit with auxiliary function 12 (light source unit) to the fixture main body 11 are attached at two positions near both longitudinal ends of the top plate portion 15. The spring receiving members 25 are each disposed at a position closer to the end of the fixture main body 11 than at least a part of the attachment holes 20, with a predetermined distance spaced apart from the end of the fixture main body 11. Between the two spring receiving members 25, the terminal block 21 and the light source power supply 24 are disposed in the central region in the longitudinal direction of the fixture main body 11.

[0018] The spring receiving member 25 includes a receiving plate portion 26 disposed substantially perpendicular to the top plate portion 15 of the fixture main body 11, positioning portions 27 extending outward in the width direction from lower portions on both widthwise sides of the receiving plate portion 26, with tip sides bent at a substantially right angle toward the longitudinal direction of the fixture main body 11, and a hooking hole 28 provided on an inner side of the receiving plate portion 26. A protruding portion 28a protrudes upward from the center in the width direction at the lower edge of the hooking hole 28.

[0019] Further, as shown in FIG. 1 to FIG. 8, the light source unit with auxiliary function 12 includes an elongated light source unit (light source unit main body) 30, and an auxiliary function unit 31 disposed at an outer end on one longitudinal end side of the light source unit 30.

[0020] For example, while the fixture main body 11 has the same structure as an existing fixture main body, the length of one end side of the existing light source unit is shortened, and the light source unit 30 is attached such that an auxiliary functional unit 31 is disposed at the outer end portion of the one end side of the light source unit 30. Accordingly, the total length of the light source unit with auxiliary function 12, which combines the light source unit 30 and the auxiliary functional unit 31, is configured to be substantially the same length as that of the existing light source unit. Similarly to the existing light source unit, the light source unit 30 is detachably attached to the fixture main body 11, which is the same as an existing fixture main body.

[0021] The light source unit 30 includes an elongated light source chassis 33, a light source module 34 that is a light source attached to the lower surface side of the light source chassis 33, a light-transmissive cover 35 that covers the light source module 34 and is attached to the light source chassis 33, end surface covers 36 that cover both longitudinal ends of the light-transmissive cover 35 and are attached to the light source chassis 33, and two attachment springs 37 disposed on the upper surface side of the light source chassis 33.

[0022] The light source chassis 33 is made of metal and formed in an elongated shape. Bent portions 33a bent upward are provided on both widthwise side portions of the light source chassis 33.

[0023] The light source module 34 includes an elongated substrate 39 and a plurality of light emitting elements 40 mounted along the longitudinal direction on the surface side of the substrate 39. The substrate 39 is attached to the light source chassis 33 such that the back side of the substrate 39 faces the lower surface side of the light source chassis 33. For the light emitting elements 40, for example, semiconductor light emitting elements such as LEDs and organic EL are used. One end side of a unit-side lighting power supply line is electrically connected to the light source module 34, and the other end side of the unit-side lighting power supply line is drawn out from the other end side of the light source unit 30 and connector-connected to a main body-side lighting power supply line drawn out from the fixture main body 11.

[0024] The light-transmitting cover 35 has light-transmitting and light-diffusing properties, allowing light from the light-emitting element 40 to pass through. The light-transmitting cover 35 is formed such that its cross-sectional shape in the width direction is a convex curved surface on the front side. The upper side of the light-transmitting cover 35 is provided with a contact portion 35a that abuts against the mounting edge portion 16a in the width direction of the fixture body 11, and a protruding engaging portion 35b that engages with the bent portion 33a of the light source chassis 33.

[0025] The mounting springs 37 are attached to the upper surface of the light source chassis 33 at two locations near both ends in the longitudinal direction by mounting members 42. The distance between the mounting spring 37 on one end, which is on the auxiliary function unit 31 side, and the end of the light source unit 30 on one end is shorter than the distance between the mounting spring 37 on the other end and the end of the light source unit 30 on the other end, meaning it is shorter by the length necessary to position the auxiliary function unit 31 at the outer end of one end of the light source unit 30. The positions of each mounting spring 37 in the auxiliary function light source section 12, including the light source unit 30 and the auxiliary function unit 31, are positioned to correspond to the positions of each mounting spring in an existing light source unit, allowing each mounting spring 37 to be attached to the spring receiving member of the existing fixture body.

[0026] The mounting spring 37 is, for example, a torsion spring, with a pair of coil portions 37a held by the mounting member 42, and a substantially U-shaped hook portion 37b extending between one end of the pair of coil portions 37a, which can engage with the hook hole 28 of the spring receiving member 25. The other ends of the pair of coil portions 37a are attached to the mounting member 42. The mounting spring 37 is arranged such that the spring force acts on the hook portion 37b in a direction from the upper side of the light source chassis 33 through the end side toward the downward side. As shown in Figure 4, the mounting spring 37 is configured to temporarily suspend the light source unit 30 (light source unit with auxiliary function 12) from the fixture body 11 by inserting the hooking hole 28 of the spring receiving member 25 of the fixture body 11 with the hooking portion 37b pulled up against the spring force from the light source chassis 33 and hooking it onto the protrusion 28a. Furthermore, by pushing up the light source unit 30, the spring force pulls up the light source unit 30 (light source unit with auxiliary function 12) and attaches it to the fixture body 11, and maintains that attached state.

[0027] Note that the mounting spring 37 is not limited to a torsion spring; a leaf spring or the like may also be used.

[0028] Furthermore, Figures 4 to 8 show the auxiliary function unit 31. The auxiliary function unit 31 is located at the outer end of one end of the light source unit 30 by being connected to a connecting member 45 attached to the light source chassis 33 at one end of the light source unit 30.

[0029] The connecting member 45 is made of a metal plate and has a roughly U-shaped cross-section, with a mounting portion 46 that is attached to the upper surface of the light source chassis 33 by screws or the like, and a side portion 47 that is positioned inside the bent portion 33a of the light source chassis 33. Connecting portions 48 are provided on both sides of the side portion 47, projecting from one end of the light source unit 30 toward the auxiliary function unit 31.

[0030] The auxiliary function unit 31 includes a support member 51 connected to a connecting member 45 to support the auxiliary function unit 31 on the light source unit 30, an auxiliary function device 52 integrally supported by the support member 51, an auxiliary function power supply 53 that supplies operating power to the auxiliary function device 52, and a housing 54 that houses the auxiliary function device 52 and the auxiliary function power supply 53.

[0031] The support member 51 is made of a metal plate and has a long, flat support portion 57 corresponding to the longitudinal direction of the light source unit 30, and a unit mounting portion 59, which is a wiring support portion that rises from both sides in the width direction at the other end of the support portion 57 in the longitudinal direction. An auxiliary function device 52 is attached to the lower side of the support portion 57, and an auxiliary function power supply 53 is attached to the upper side of the support portion 57, with the auxiliary function power supply 53 and the auxiliary function device 52 being arranged to overlap vertically via the support member 51.

[0032] The unit mounting portions 59 are positioned inside the connecting portions 48 of the connecting member 45. The upper ends of the unit mounting portions 59 are provided with bent portions 60, which are wiring holding surfaces that are bent outwards in opposite directions, and these bent portions 60 are positioned to overlap the upper side of the connecting portion 48. The unit mounting plate portions 59 are attached to the connecting portions 48 by screws 61. One unit mounting portion 59 is attached to one connecting portion 48 by one screw 61, and the other unit mounting portion 59 is connected to the other connecting portion 48 by two screws 61, so that the connection does not cause movement of the screws 61, for example, around their axes relative to the connecting portion 48.

[0033] The upper part of the unit mounting portion 59, including the bent portion 60, is positioned to protrude above the light source unit 30 (including the light source chassis 33 and the light-transmitting cover 35). A retaining hole 62 is provided on the upper part of the unit mounting portion 59, and a retaining groove 63 is provided on the tip side of the bent portion 60, both in the center in the longitudinal direction.

[0034] The auxiliary function unit 31 is configured to be detachable and replaceable from the light source unit 30 by the operation of attaching and detaching screws 61.

[0035] The auxiliary function unit 31 is comprised of, for example, a camera unit that captures images of the downward area, which is the direction of light irradiation from the lighting device 10.

[0036] In the case of a camera unit, the auxiliary function device 52 includes an imaging unit 74 having an image sensor for capturing a subject and a lens 73 for focusing light from the subject onto the image sensor, and a circuit unit 75 for driving the image sensor and processing the image captured by the image sensor. The image sensor is a solid-state image sensor such as a CMOS (Complementary Metal Oxide Semiconductor) or a CCD (Charge Coupled Device). The lens 73 is positioned in a window opening formed on the lower side of the housing 54 and focuses light from a subject in the lower area onto the image sensor. Furthermore, the auxiliary function device 52 includes in the circuit unit 75 a storage unit for storing captured video, and a communication unit that communicates with an external communication device via wired or wireless means to transmit the stored video data and accept operations from the communication device. In addition, the auxiliary function device 52 is positioned at a different height from the light source module 34 and is located below the light source module 34.

[0037] The auxiliary function device 52 has an operating section 76 on one side in the width direction of the circuit section 75. The operating section 76 is equipped with a memory card slot 77 into which a memory card, which is an external memory for storing captured video, is detachably attached, as well as function buttons and initial set buttons for making settings.

[0038] The auxiliary power supply 53 is covered by a power supply case 78 and attached to the upper side of the support portion 57 of the support member 51. The auxiliary power supply 53 is positioned to overlap the auxiliary power supply 52 above the auxiliary power supply 52 so as to be positioned between the auxiliary power supply 52 and the fixture body 11. The auxiliary power supply 53 is, for example, an AC-DC converter that converts AC power supplied from the commercial AC power supply through the terminal block 21 into a predetermined operating power such as DC power and supplies it to the circuit section 75 of the auxiliary power supply 52. ​​At least a portion of the auxiliary power supply 53 is positioned at the same height as the light source module 34 of the light source unit 30, and at least a portion of its upper side is positioned inside the fixture body 11.

[0039] The housing 54 is attached to the support member 51, covering the lower sides of the auxiliary function device 52 and the auxiliary function power supply 53. The top surface of the housing 54 is open and positioned at approximately the same height as the contact portion 35a of the light-transmitting cover 35. The upper side of the unit mounting portion 59 of the support member 51 and the upper side of the auxiliary function power supply 53 each protrude upward. A window opening for the lens 73 of the imaging unit 74 is formed on the bottom surface of the housing 54. The bottom side of the housing 54 protrudes downward below the bottom side of the light source unit 30.

[0040] An engaging portion 80 is provided at one end of the housing 54 opposite to the light source unit 30, protruding from the upper surface of the housing 54 and engaging with the inside of the mounting edge 16a at one end of the fixture body 11. When this engaging portion 80 engages with the mounting edge 16a at one end of the fixture body 11, and the engaging portion 35b of the light-transmitting cover 35 of the light source unit 30 engages with the mounting edge 16a at the other end of the fixture body 11, the longitudinal position of the auxiliary light source unit 12 is positioned relative to the fixture body 11.

[0041] An operation window 81 is formed on one side of the housing 54 in the width direction, facing the operation section 76, and a cover 82 for opening and closing this operation window 81 is attached to it detachably with a screw 83. By removing the cover 82, it becomes possible to insert and remove a memory card into the memory card slot 77 and to configure settings by operating various buttons.

[0042] Furthermore, wiring 90, such as an electric wire, is routed between the auxiliary function unit 31 and the light source unit 30. The wiring 90 includes at least a power supply line 91 that supplies power input to the terminal block 21 of the fixture body 11 to the auxiliary function power supply 53, and also includes a signal line 92 used when the circuit section 75 communicates with the outside via a wire.

[0043] One end of the power supply line 91 is connected to the power input of the holding function power supply 53, and is drawn out from the end face of the holding function power supply 53 facing the light source unit 30. The other end is wired to the back side of the light source unit 30, and a connector 93 is connected to the tip of the other end. The connector 93 is detachably connected to the connector 23 of the power supply line 22 which is connected to the terminal block 21 of the fixture body 11.

[0044] The power supply line 91 is drawn out from one side in the width direction at the end face of the holding function power supply 53 facing the light source unit 30, then bent upward along the end face of the holding function power supply 53, and guided to the upper surface of the bent portion 60 of the unit mounting portion 59 on the other side in the width direction, and wired toward the light source unit 30. The power supply line 91 guided to the upper surface of the bent portion 60 of the unit mounting portion 59 is held to the unit mounting portion 59 by a cable tie 94, which is a retainer. The cable tie 94 is inserted through the retaining hole 62 of the unit mounting portion 59 and engages with the retaining groove 63 of the bent portion 60, tightening and holding the power supply line 91 so that it contacts the upper surface of the bent portion 60 of the unit mounting portion 59.

[0045] The unit mounting portion 59 and the cable tie 94 constitute a wiring holding portion 95 that holds the power supply line 91. As shown in Figures 6 to 8, the wiring holding portion 95 holds the power supply line 91 outside the range of motion of the hook portion 37b of the mounting spring 37 (the range of rotation around the coil portion 37a), and as shown in Figures 4 to 6, it holds the power supply line 91 in a position that protrudes from the light source unit 30 towards the fixture body 11.

[0046] Specifically, the wiring holding portion 95 bends the power supply line 91, which is drawn out from one side in the width direction at the end face of the holding function power supply 53 facing the light source unit 30, upward along the end face of the holding function power supply 53 and guides it to the upper side of the bent portion 60 of the unit mounting portion 59 on the other side in the width direction, thereby holding it so that it is located outside the rotation range at the tip side of the hook portion 37b of the mounting spring 37 and to the side of the hook portion 37b in the width direction.

[0047] The signal line 92 is, for example, a LAN cable, with one end connected to the communication section of the circuit section 75 and drawn out from the end face of the circuit section 75 facing the light source unit 30. The other end is wired to the back side of the light source unit 30, and a connector 96 is connected to the tip of the other end. The connector 94 is detachably connected to an external communication line that is drawn into the fixture body 11.

[0048] The signal line 92 is drawn out from one side in the width direction at the end face of the circuit section 75 facing the light source unit 30, then bent upward along the end face of the power supply 53 for the holding function, and guided to the upper side of the bent portion 60 of the unit mounting section 59 on one side in the width direction, and wired toward the light source unit 30. The signal line 92 guided to the upper side of the bent portion 60 of the unit mounting section 59 is held by the unit mounting section 59 by a cable tie 94, which is a retainer. The cable tie 94 is inserted through the retaining hole 62 of the unit mounting section 59 and engages with the retaining groove 63 of the bent portion 60, tightening and holding the signal line 92 so that it contacts the upper surface of the bent portion 60 of the unit mounting section 59.

[0049] Therefore, with respect to the signal line 92, similar to the power supply line 91, the wiring holding section 95 bends the signal line 92, which is drawn out from one side in the width direction at the end face of the circuit section 75 facing the light source unit 30, upward along the end face of the holding function power supply 53, and guides it to the upper side of the bent portion 60 of the unit mounting section 59 on one side in the width direction, thereby holding it so that it is located outside the rotation range at the tip side of the hook portion 37b of the mounting spring 37 and to the side of the hook portion 37b in the width direction.

[0050] The other ends of the power supply line 91 and communication line 92, which are led to the light source unit 30, are left free, making it easy to connect the power supply line 91 to the power supply line 22 connected to the terminal block 21 of the fixture body 11, and to connect the signal line 92 to the external communication line drawn into the fixture body 11.

[0051] Furthermore, the auxiliary function unit 31 is equipped with a suction part 98 that attracts and supports the auxiliary function light source unit 12 when it is attached to the fixture body 11. The suction part 98 is located on the upper surface of the power supply case 78 and is equipped with a magnet. It attracts the auxiliary function unit 31 by magnetic force, either by directly contacting the lower surface of the top plate portion 15 of the fixture body 11 or by contacting a magnetic material attached to the fixture body 11, thereby supporting the auxiliary function unit 31 on the fixture body 11. Because the suction part 98 is in contact with the fixture body 11, it can dissipate the heat generated by the auxiliary function device 52 and the auxiliary function power supply 53 of the auxiliary function unit 31 to the fixture body 11, thereby suppressing the temperature rise of the auxiliary function unit 31.

[0052] Next, we will explain the installation of the lighting device 10.

[0053] Power lines drawn from the ceiling are routed through wiring holes 19 to the underside of the fixture body 11. If wired communication is required, external communication lines are also routed to the underside of the fixture body 11, and the fixture body 11 is then mounted to the ceiling. The fixture body 11 is mounted by either fastening it with nuts through mounting holes 20 onto two suspension bolts protruding from the ceiling, or by screwing it to the ceiling through mounting holes 20. The power lines routed to the underside of the fixture body 11 are electrically connected to the terminal block 21.

[0054] The hooking portions 37b of the two mounting springs 37 of the light source unit 30 are raised against the spring force and hooked onto the spring receiving members 25 of the fixture body 11, thereby temporarily suspending the light source unit 30 (auxiliary function light source unit 12) below the fixture body 11 using the two mounting springs 37 (see Figure 4). In this temporarily suspended state, the lighting power supply line from the light source power supply 24 of the fixture body 11 and the lighting power supply line from the light source module 34 of the light source unit 30 are connected with a connector, the power supply line 22 connected to the terminal block 21 of the fixture body 11 and the power supply line 91 from the auxiliary function power supply 53 of the auxiliary function unit 31 are connected with a connector, and in the case of wired communication, the external signal line drawn into the fixture body 11 and the signal line 92 from the circuit section 75 of the auxiliary function unit 31 are connected with a connector.

[0055] Subsequently, by pushing the light source unit 30 upward toward the fixture body 11, the spring force of the two mounting springs 37 of the light source unit 30 acts, pulling the light source unit 30 toward the fixture body 11. Then, the upper side of the light source unit 30 and the auxiliary function unit 31 enter the interior through the opening on the bottom of the fixture body 11, and the contact portion 35a of the light source unit 30 comes into contact with the mounting edge portion 16a of the fixture body 11, thereby attaching the light source unit 30 to the fixture body 11.

[0056] At this time, the hook portion 37b of the mounting spring 37 moves to approach the back side of the light source unit 30 while engaged with the spring receiving member 25. The power supply line 91 and the signal line 92 are located near this range of motion, but the power supply line 91 and the signal line 92 are held outside the range of motion of the hook portion 37b of the mounting spring 37 by the wiring holding portion 95. Therefore, the hook portion 37b of the mounting spring 37 moves normally without coming into contact with or getting caught on the power supply line 91 or the signal line 92, and the light source unit 30 can be attached to the fixture body 11.

[0057] Furthermore, there is a risk that the power supply line 91 and signal line 92 may get pinched between the contact portion 35a of the light source unit 30 and the mounting edge portion 16a of the fixture body 11. However, since the power supply line 91 and signal line 92 are held by the wiring holding portion 95 in a position that protrudes more towards the fixture body 11 than towards the rear side of the light source unit 30, it is possible to prevent the power supply line 91 and signal line 92 from getting pinched between the contact portion 35a of the light source unit 30 and the mounting edge portion 16a of the fixture body 11.

[0058] Furthermore, when a signal line 92 is used in addition to the power supply line 91 as wiring 90, the wiring holding unit 95 holds the power supply line 91 and the signal line 92 so that they are in the width direction of the light source unit 30, thereby reducing the impact of noise from the power supply line 91 to the signal line 92.

[0059] Furthermore, when the light source unit 30 is attached to the fixture body 11, the suction part 98 of the auxiliary function unit 31 is attached to the fixture body 11 by suction. Therefore, even in a structure where the auxiliary function unit 31 is attached in a cantilevered manner to the outer end of one end of the light source unit 30, misalignment such as the one end of the auxiliary function unit 31 sagging is suppressed.

[0060] Then, when AC power is supplied to the lighting device 10 through the power line, the light source power supply 24 converts the AC power into a predetermined lighting power and supplies it to the light source module 34 of the light source unit 30, causing the light-emitting element 40 to light up.

[0061] Furthermore, the auxiliary function power supply 53 of the auxiliary function unit 31 converts AC power into a predetermined operating power and supplies it to the auxiliary function device 52, causing the auxiliary function device 52 to operate. If the auxiliary function device 52 is a camera unit, the imaging unit 74 captures a subject in the lower area. The camera unit continuously captures images as long as AC power is being input to the lighting device 10. The image data captured by the imaging unit 74 is stored in the memory unit, and the stored image data is transmitted externally by the communication unit, allowing the image to be viewed externally. In addition, the image data captured by the imaging unit 74 is stored on a memory card inserted in the memory card slot 77, and the image can be viewed externally by removing the memory card from the memory card slot 77.

[0062] Furthermore, when the lighting device 10 is turned on, multiple light-emitting elements 40 in the light source module 34 of the light source unit 30 generate heat, and this heat from the light source module 34 is transferred to the light source chassis 33 and the fixture body 11 for heat dissipation.

[0063] In the auxiliary function unit 31, the auxiliary function device 52 is positioned at a different height from the light source module 34 and below the light source module 34. As a result, the heat from the light source module 34 that affects the auxiliary function device 52 is reduced, and the auxiliary function device 52 is kept within a predetermined allowable temperature range and functions stably.

[0064] Furthermore, since the auxiliary function unit 31 has the auxiliary function power supply 53 positioned above the auxiliary function device 52, the thermal influence of the auxiliary function power supply 53 on the auxiliary function device 52 is also reduced. In addition, the heat from the auxiliary function unit 31 is dissipated to the main body of the appliance 11 via the adsorption part 98, thereby suppressing the temperature rise of the auxiliary function unit 31.

[0065] Furthermore, in the lighting device 10, the auxiliary function unit 31 integrates an auxiliary function device 52 and an auxiliary function power supply 53, and this auxiliary function unit 31 is attached to the outer end of one end in the longitudinal direction of the light source unit 30. Therefore, the auxiliary function can be provided without extending the fixture body 11 in the longitudinal direction.

[0066] Furthermore, since the auxiliary function unit 31 is replaceable with respect to the light source unit 30, it is easy to replace the auxiliary function unit 31 in case of malfunction, or to attach or replace it according to the type of auxiliary function to be added to the light source unit 30.

[0067] Furthermore, in the auxiliary function unit 31, the auxiliary function power supply 53 is positioned between the auxiliary function device 52 and the fixture body 11, with the auxiliary function power supply 53 and the auxiliary function device 52 stacked vertically. This allows for miniaturization of the auxiliary function unit 31 in the direction corresponding to the longitudinal direction of the light source unit 30. As a result, the spring receiving member 25 can remain in the same position as in existing fixtures, and the auxiliary function unit 31 can be installed by shortening the length of one end of the light source unit 30.

[0068] Furthermore, since the auxiliary function unit 31 is located on the opposite side from the fixture body 11 from the light source unit 30 and protrudes in the direction of light irradiation (downward) of the light source unit 30, even if the auxiliary function device 52 is susceptible to external light, such as a camera unit, the influence of light from the light source unit 30 on the auxiliary function device 52 can be reduced.

[0069] Furthermore, since at least a portion of the auxiliary power supply 53 for the auxiliary function unit 31 is located within the fixture body 11, the amount of protrusion from the light source unit 30 can be minimized, thereby improving the aesthetic design.

[0070] Furthermore, because the wiring holding portion 95 holds the power supply line 91 and the signal line 92 outside the range of motion of the hook portion 37b of the mounting spring 37, the hook portion 37b of the mounting spring 37 can move normally without coming into contact with or getting caught on the power supply line 91 or the signal line 92, allowing the light source unit 30 to be attached to the fixture body 11 and preventing a decrease in ease of installation.

[0071] Furthermore, the wiring holding portion 95 holds the power supply line 91 and signal line 92 in a position that protrudes more towards the fixture body 11 than towards the rear side of the light source unit 30. This prevents the power supply line 91 and signal line 92 from getting pinched between the contact portion 35a of the light source unit 30 and the mounting edge portion 16a of the fixture body 11, thus preventing a decrease in ease of installation.

[0072] Furthermore, when the light source unit 30 is attached to the fixture body 11, the suction part 98 of the auxiliary function unit 31 is attached to the fixture body 11 by suction. Therefore, even in a structure where the auxiliary function unit 31 is attached in a cantilevered manner to the outer end of one end of the light source unit 30, misalignment such as the one end of the auxiliary function unit 31 sagging is suppressed, and the auxiliary function unit 31 can function stably.

[0073] In the above embodiment of the lighting device 10, the power supply 24 for the light source may be installed in the light source unit 30 instead of the fixture body 11. In this case, the power supply 24 for the light source and the auxiliary function unit 31 are installed together in the light source unit 30, so that by replacing the light source unit 30 with the fixture body 11, all the electrical components of the lighting device 10 can be replaced, improving the ease of replacement.

[0074] Furthermore, the auxiliary function unit 31 is not limited to the camera unit; it can be any of the following: a sensor unit that detects human bodies or brightness, an emergency light unit that lights up during a power outage, a speaker unit that emits sound, etc.

[0075] Furthermore, the lighting device 10 may be a recessed lighting device, a suspended lighting device, or the like, in addition to a surface-mounted lighting device.

[0076] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of symbols]

[0077] 10 Lighting devices 11. Main body of the device 30 light source units 31 Auxiliary function unit 37 Mounting spring 90 Wiring 95 Wiring holding part

Claims

1. A long, rectangular instrument body and; A long, rectangular light source unit; Mounting springs are provided on both ends in the longitudinal direction of the light source unit to detachably attach the light source unit to the fixture body; An auxiliary function unit disposed at the longitudinal end of the light source unit, having an auxiliary function device, an auxiliary function power supply that supplies operating power to the auxiliary function device, and a support member that supports the auxiliary function device and the auxiliary function power supply; A power supply line is arranged across the auxiliary function unit and the light source unit to supply power to the auxiliary function power supply; A signal line is arranged across the auxiliary function unit side and the light source unit side and connected to the auxiliary function device; A pair of holders; Equipped with, The support member has a pair of wiring holding surfaces that are spaced apart in a direction intersecting the longitudinal direction of the light source unit, The power supply line is held by one of the retainers on one of the wiring retaining surfaces, and the signal line is held by the other retainer on the other wiring retaining surface, with the power supply line and the signal line positioned outside the range of motion of the mounting spring. A lighting device characterized by the following features.

2. The wiring holding surface and the holder hold the power supply line and the signal line in a position that protrudes from the light source unit toward the fixture body. The lighting device according to claim 1, characterized by the features described above.

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