Lighting device

Abstract

To provide an illuminating device that can reduce weight imbalance in the longitudinal direction of a light source unit.SOLUTION: An illuminating device 10 comprises an appliance body 11, a long light source unit 30 attachable / detachable to / from the appliance body 11, an auxiliary function unit 31 arranged on one end side in the longitudinal direction of the light source unit 30, and an auxiliary function power source 49 arranged on the other end side in the longitudinal direction of the light source unit 30.SELECTED DRAWING: Figure 4

Description

Technical Field

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

Background Art

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

[0003] In this lighting device, since the camera is disposed on one end side of the light source unit, a bias occurs in the weight balance in the longitudinal direction, resulting in a decrease in the handling property of the light source unit during construction or a decrease in the load balance on the light source unit in the state attached to the instrument body.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] <舍近求远> The problem to be solved by the present invention is to provide a lighting device capable of reducing the bias in the weight balance in the longitudinal direction of the light source unit.

Means for Solving the Problems

[0006] The lighting device according to the embodiment includes an instrument body and It comprises a long light source chassis, a light source module mounted on the light source chassis, a light-transmitting cover that covers the light source module and is mounted on the light source chassis, and end covers mounted on both ends of the light-transmitting cover in the longitudinal direction. a long light source unit detachable from the instrument body, The light source chassis has a detachable frame. one end side in the longitudinal direction of the light source unit Outward from the end face cover in the longitudinal direction of the light source unit and an auxiliary function unit disposed thereon, Light source chassis and an auxiliary function power source disposed on the other end side in the longitudinal direction thereof.

Effects of the Invention

[0007] It should be noted that the text "舍近求远" in line 38 seems to be an incorrect or unclear expression in the original. I have translated it as it is for the purpose of maintaining the integrity of the translation according to the requirements. If this is a specific term that needs to be corrected, please provide the correct information. According to the lighting device of this embodiment, it is expected that the bias in the weight balance of the light source unit in the longitudinal direction can be reduced. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting device showing the first embodiment. [Figure 2] This is a disassembled perspective view of the same lighting device. [Figure 3] This is an end view of the same lighting device, with the fixture body and part of the light source unit omitted. [Figure 4] This is an exploded side view showing the arrangement and wiring structure of the components of the same lighting device. [Figure 5] This is a partial cross-sectional view of the lighting fixture with the light source unit attached. [Figure 6] This is an exploded side view showing the arrangement structure of the components and the wiring structure of a lighting device according to a second embodiment. [Modes for carrying out the invention]

[0009] The first embodiment will be described below with reference to Figures 1 to 5.

[0010] Figures 1 to 5 show the lighting device 10. The lighting device 10 is a base light type 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. The fixture body 11 shown in Figure 4 is illustrated in a translucent state to show the arrangement structure of the components and wiring structure inside the fixture body 11.

[0012] The fixture body 11 is made of sheet metal, for example, and is formed in an elongated shape. The fixture body 11 has an elongated top plate portion 15, side plate portions 16 provided on both sides in 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] Inside the fixture body 11, a terminal block 22 is positioned near one end of the top plate 15 in the longitudinal direction relative to the wiring hole 19. Power lines 23, which are drawn into the fixture body 11 from the outside through the wiring hole 19, are electrically connected to the terminal block 22. The power lines 23 supply AC power, which is external power from, for example, a commercial AC power source.

[0015] Inside the fixture body 11, a power supply 24 for the light source is located near the other end of the top plate portion 15 in the longitudinal direction, opposite to the terminal block 22 with respect to the wiring hole 19. The power supply 24 for the light source is, for example, an AC-DC converter, which converts the AC power supplied from the commercial AC power source through the terminal block 22 into a predetermined lighting power such as DC power, and supplies it to the light source module provided in the auxiliary light source unit 12.

[0016] Inside the fixture body 11, spring receiving members 27 are attached to two locations near both ends in the longitudinal direction of the top plate portion 15. These are the mounting parts for mounting mechanisms 26 that detachably attach the auxiliary light source portion 12 (light source unit) to the fixture body 11. The spring receiving members 27 of the two mounting mechanisms 26 are positioned on the end side of the fixture body 11 from the mounting hole 20 and with a predetermined distance between them and the end of the fixture body 11. Between the spring receiving members 27 of the two mounting mechanisms 26, a terminal block 22 and a power supply for the light source 24 are arranged in the central region in the longitudinal direction of the fixture body 11.

[0017] In addition, the light source unit 12 with auxiliary functions includes a long light source unit (light source unit main body) 30 and an auxiliary function unit 31 disposed on one end side in the longitudinal direction of the light source unit 30.

[0018] The light source unit 30 is such that while the instrument body 11 has the same structure as an existing instrument body, the length of one end side of the existing light source unit is shortened, and the auxiliary function unit 31 is attached so as to be disposed at the outer end portion of one end side of the light source unit 30. Therefore, the length of the light source unit 12 with auxiliary functions, combining the light source unit 30 and the auxiliary function unit 31, is configured to be approximately the same as the length of the existing light source unit. The light source unit 30 is detachably attached to the instrument body 11 using two attachment structures 26, similar to the existing light source unit.

[0019] The light source unit 30 includes a long light source chassis 33, a light source module 34 which is a light source attached to the lower surface side of the light source chassis 33, a translucent cover 35 which covers the light source module 34 and is attached to the light source chassis 33, an end face cover 36 which covers both ends in the longitudinal direction of the translucent cover 35 and is attached to the light source chassis 33, and attachment springs 37 which are attachment portions of two attachment mechanisms 26 disposed on the upper surface side of the light source chassis 33.

[0020] The light source chassis 33 is made of metal and provided in a long shape.

[0021] The light source module 34 has a long substrate 39 and a plurality of light emitting elements 40 mounted longitudinally along the surface side of the substrate 39. The substrate 39 is attached to the light source chassis 33 such that the back side faces the lower surface side of the light source chassis 33. The light emitting element 40 uses a semiconductor light emitting element such as an LED or an organic EL.

[0022] The translucent cover 35 has translucency and light diffusing properties, and the light from the light emitting element 40 passes through it. The translucent cover 35 is formed such that the cross-sectional shape in the width direction is a convex curved surface on the front side.

[0023] The mounting spring 37 is 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 mounting spring 37 is, for example, a torsion spring, with a pair of coil sections held by the mounting member 42, and a substantially U-shaped hook portion 37a extending between one end of the pair of coil sections, which can engage with the spring receiving member 27.

[0024] The mounting spring 37 is positioned such that the hook portion 37a acts as a spring force from the upper side of the light source chassis 33, through the end side, toward the downward side. The mounting spring 37 is configured to temporarily suspend the light source unit 33 (light source unit with auxiliary function 12) from the fixture body 11 by hooking the hook portion 37a onto the spring receiving member 27 of the fixture body 11 with the hook portion 37a pulled up against the spring force (as shown in Figure 4), and then by pushing up the light source unit 33, 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.

[0025] The mounting mechanism 26 may also be provided with a mounting spring 37 on the fixture body 11 and a spring receiving member 27 on the light source unit 30. Furthermore, the mounting spring 37 is not limited to a torsion spring; a leaf spring or the like may be used.

[0026] Furthermore, the auxiliary function unit 31 is comprised of, for example, a camera unit that captures images of the lower area, which is the illumination area of ​​the lighting device 10.

[0027] The camera unit comprises an imaging unit having an image sensor for capturing an image of a subject and a lens 45 for focusing light from the subject onto the image sensor; a circuit unit for driving the image sensor and processing the image captured by the image sensor; a frame that supports the imaging unit and the circuit unit and is detachably attached to the light source chassis 33 side of the light source unit 30; and a housing 46 that covers the camera unit. 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 45 is positioned in a window formed on the lower side of the housing 46 and focuses light from a subject in the lower area onto the image sensor. Furthermore, the camera unit includes a storage unit for storing images captured by the imaging unit, and a communication unit that communicates with external communication equipment via wired or wireless means to transmit the stored image data and accepts operations from the communication equipment.

[0028] The auxiliary function unit 31 is constructed such that its frame can be detachably attached to the light source chassis 33 side of the light source unit 30, for example, by screws or a snap-in mechanism, and is replaceable on one end of the light source unit 30.

[0029] The auxiliary function unit 31 is large in the case of, for example, a high-function type camera unit or a camera unit with an integrated power supply, so when attached to one end of the light source unit 30, it protrudes downward from the light-transmitting cover 35 of the light source unit 30. On the other hand, in the case of a simple type camera unit or a camera unit with a separate power supply, it is small, so it is possible to make its cross-sectional shape close to or nearly the same as that of the light source unit 30 in order to improve the appearance. Furthermore, the auxiliary function unit 31 is positioned on the outer end side (one end side) of the space between the two mounting mechanisms 26 (two mounting springs 37).

[0030] Furthermore, the lighting device 10 is separated from the auxiliary function unit 31 and includes an auxiliary function power supply 49 that supplies predetermined operating power to the auxiliary function unit 31. This auxiliary function power supply 49 is located on the other end of the light source unit 30 in the longitudinal direction, opposite to the auxiliary function unit 31. The auxiliary function power supply 49 is located on the upper side of the light source chassis 33 of the light source unit 30, on the outer end (other end) side of the space between the two mounting mechanisms 26 (two mounting springs 37).

[0031] The auxiliary power supply 49 is, for example, an AC-DC converter that converts AC power supplied from the commercial AC power supply through the terminal block 22 into a predetermined operating power such as DC power, and supplies it to the circuit section of the auxiliary function unit 31. The auxiliary power supply 49 uses a switching element for power conversion.

[0032] Figure 4 shows the wiring structure of the lighting device 10. One end each of the light source wire 52 and the auxiliary function wire 53 is electrically connected to the terminal block 22, and these light source wire 52 and auxiliary function wire 53 are wired from the terminal block 22 to the other end in the longitudinal direction of the fixture body 11 inside the fixture body 11.

[0033] The other end of the light source wire 52 is electrically connected to the power input section that receives AC power from the light source power supply 24.

[0034] The other end of the auxiliary function wire 53 is wired to the other end of the fixture body 11 in the longitudinal direction and electrically connected to the power input of the auxiliary function power supply 49. The auxiliary function wire 53 comprises a first auxiliary function wire 53a electrically connected to the terminal block 22 and wired to the other end of the fixture body 11 in the longitudinal direction, a second auxiliary function wire 53b electrically connected to the auxiliary function power supply 49, and a connector 54 that detachably connects the first auxiliary function wire 53a and the second auxiliary function wire 53b.

[0035] One end of the light source output wire 55 is connected to the lighting power output section of the light source power supply 24, which outputs lighting power. The other end of the light source output wire 55 is wired to the other end of the fixture body 11 in the longitudinal direction and electrically connected to the other end of the light source module 34 of the light source unit 30. The light source output wire 55 comprises a first light source output wire 55a that is electrically connected to the light source power supply 24 and wired to the other end of the fixture body 11 in the longitudinal direction, a second light source output wire 55b that is electrically connected to the other end of the light source module 34 of the light source unit 30, and a connector 56 that detachably connects the first light source output wire 55a and the second light source output wire 55b.

[0036] One end of the auxiliary function output wire 57 is connected to the operating power output section of the auxiliary function power supply 49, which outputs operating power. The other end of the auxiliary function output wire 57 is routed along the upper surface of the light source chassis 33 toward one longitudinal end of the light source unit 30, and protrudes from one end of the light source unit 30, and is electrically connected to the circuit section of the auxiliary function unit 31.

[0037] When installing the lighting device 10, the power supply wires 23 extending from the ceiling are routed through the wiring holes 19 to the underside of the fixture body 11, and the fixture body 11 is then attached to the ceiling. The fixture body 11 can be attached by passing it through the mounting holes 20 and tightening it with nuts onto two suspension bolts protruding from the ceiling, or by screwing it to the ceiling through the mounting holes 20. The power supply wires 23 are electrically connected to the terminal block 22.

[0038] The hook portions 37a of the two mounting springs 37 of the light source unit 30 are raised from the upper side of the light source chassis 33 and hooked onto the respective spring receiving members 27 of the fixture body 11, thereby temporarily suspending the light source unit 30 (light source unit with auxiliary function 12) from the fixture body 11. In this state, at the other end of the fixture body 11 and the light source unit 30, the first auxiliary function wire 53a drawn from the fixture body 11 and the second auxiliary function wire 53b drawn from the light source unit 30 are electrically connected with a connector 54, and the first light source output wire 55a drawn from the fixture body 11 and the second light source output wire 55b drawn from the light source unit 30 are electrically connected with a connector 56.

[0039] By pushing up the light source unit 30, the spring force of the two mounting springs pulls up the light source unit 30 and attaches it to the fixture body 11, and the attached state is maintained.

[0040] As shown in Figure 5, when the light source unit 30 is attached to the fixture body 11, the auxiliary power supply 49, which is located on the other end of the light source unit 30, is inserted and housed in the space between the spring receiving member 27 (mounting mechanism 26) on the other end of the fixture body 11 and the end of the other end of the fixture body 11.

[0041] Furthermore, when AC power is supplied to the lighting device 10 through the power line 23, 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 through the light source output line 55, causing the light-emitting element 40 to light up and provide illumination.

[0042] Furthermore, the auxiliary power supply 49 converts AC power into a predetermined operating power and supplies it to the circuit section of the auxiliary function unit 31 via the auxiliary output line 57, causing the auxiliary function unit 31 to operate. That is, the camera unit operates and the imaging unit captures images of subjects 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 is stored in the storage unit, and the stored image data is transmitted externally via the communication circuit, allowing the images to be viewed externally.

[0043] In the lighting device 10, the auxiliary function unit 31 is located on one end of the light source unit 30 in the longitudinal direction. This makes one end of the light source unit 30 heavier, causing an imbalance in the weight distribution of the light source unit 30 in the longitudinal direction. However, by separating the auxiliary function power supply 49 from the auxiliary function unit 31 and locating this power supply 49 on the other end of the light source unit 30 in the longitudinal direction, the imbalance in the weight distribution of the light source unit 30 in the longitudinal direction can be reduced.

[0044] Therefore, the handling of the light source unit 30 can be improved during installation, such as when attaching the light source unit 30 to the fixture body 11, and the uneven distribution of load on the light source unit 30 when it is attached to the fixture body 11 can be reduced. In other words, the load can be distributed without concentrating on one end of the light source unit 30.

[0045] Furthermore, since the auxiliary function unit 31 and the auxiliary function power supply 49 are located on the outer end side of the space between the two mounting mechanisms 26, they can be installed without interfering with the terminal block 22, the light source power supply 24, etc., which are located in the central area of ​​the longitudinal direction of the fixture body 11 between the two mounting mechanisms 26.

[0046] Furthermore, in the lighting device 10, if the auxiliary function unit 31 is, for example, a camera unit, the auxiliary function power supply 49 that supplies predetermined operating power to the camera unit performs power conversion, and if this generates noise such as switching noise, there is a concern that this noise may affect the image captured by the camera unit. However, in this embodiment, the auxiliary function unit 31 and the auxiliary function power supply 49 are separated, with the auxiliary function unit 31 located on one end of the light source unit 30 in the longitudinal direction, and the auxiliary function power supply 49 located on the other end of the fixture body 11 in the longitudinal direction. Because the auxiliary function unit 31 and the auxiliary function power supply 49 are separated, the influence of noise from the auxiliary function power supply 49 on the auxiliary function unit 31 can be suppressed.

[0047] Furthermore, as shown in the second embodiment of Figure 6, the light source power supply 24 may be disposed on the light source unit 30. The light source power supply 24 is disposed between the auxiliary function unit 31 on one end of the light source unit 30 and the auxiliary function power supply 49 on the other end, and further between the two mounting mechanisms 26, in the central region in the longitudinal direction on the upper side of the light source chassis 33. The light source power supply 24 is elongated and is positioned on the light source chassis 33 along the longitudinal direction of the fixture body 11, and both ends of the light source power supply 24 in the longitudinal direction are screw-fastened to the light source chassis 33.

[0048] In this case, the light source wire 52 comprises a first light source wire 52a electrically connected to the terminal block 22, a second light source wire 52b electrically connected to the light source power supply 24, and a connector 60 that detachably connects the first light source wire 52a and the second light source wire 52b. Furthermore, the light source output wire 55 is routed from the light source power supply 24 towards the other end of the light source unit 30 in the longitudinal direction along the upper side of the light source chassis 33 and is electrically connected to the other end of the light source module 34.

[0049] In the lighting device 10, the auxiliary function units 31 and auxiliary function power supplies 49 are arranged on both ends of the light source unit 30 in the longitudinal direction. When the light source unit 30 is supported by the two mounting mechanisms 26, both ends of the light source unit 30 may sag and the central region may rise, causing the light source unit 30 to bend in a mountain-like shape. However, by arranging the light source power supply 24 in the central region of the light source unit 30, such bending of the light source unit 30 can be reduced.

[0050] Furthermore, since both ends of the light source power supply 24, which is positioned along the longitudinal direction of the light source unit 30, are screw-fastened to the light source unit 30, the bending of the light source unit 30 in a curved, parabolic manner can be further reduced.

[0051] Furthermore, since the light source unit 30 integrates the light source power supply 24, the auxiliary function unit 31, and the auxiliary function power supply 49, replacing the light source unit 30 with the fixture body 11 allows for the replacement of all electrical components of the lighting device 10, thereby improving the ease of replacement.

[0052] The auxiliary power supply 49 may be arranged not on the upper surface of the other end of the light source unit 30, but rather aligned with the end of the other end of the light source unit 30.

[0053] 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.

[0054] 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]

[0055] 10 Lighting devices 11. Main body of the device 24 Power supply for light source 26 Mounting mechanism 30 light source units 31 Auxiliary function unit 49 Power supply for auxiliary functions

Claims

1. The main body of the device and; A long, elongated light source unit that is detachable from the fixture body, comprising: a long, elongated light source chassis; a light source module mounted on the light source chassis; a light-transmitting cover covering the light source module and mounted on the light source chassis; and end face covers attached to both ends of the light-transmitting cover in the longitudinal direction; An auxiliary function unit having a frame detachable from the light source chassis and disposed outward in the longitudinal direction of the light source unit from the end face cover on one end of the light source unit in the longitudinal direction; An auxiliary power supply is provided on the other end of the light source chassis in the longitudinal direction; A lighting device characterized by having the following features.

2. The light source unit comprises a power supply for the light source located in the central region between the auxiliary function unit at one end in the longitudinal direction of the light source unit and the auxiliary function power supply at the other end. The lighting device according to claim 1, characterized by the features described above.

3. The light source chassis is provided with two mounting mechanisms at two locations along its longitudinal direction for detachably attaching the light source unit to the fixture body. The auxiliary power supply is located on the end face cover side rather than between the two mounting mechanisms. The lighting device according to claim 1 or 2, characterized in that it is a lighting device according to claim 1 or 2.

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