JP2023148729A - Lighting device - Google Patents

Abstract

To provide a lighting device capable of reducing the number of components.SOLUTION: A lighting device comprises a long fixture body 20, electric wires 75, 77, 81, and a light source unit. The fixture body 20 has a long component mounting surface 24a, and a groove part 27 that opens toward the component mounting surface 24a along a longitudinal direction of the component mounting surface 24a. The electric wires 75, 77, 81 are wired in the groove part 27 along the longitudinal direction of the fixture body 20. The light source unit is attached to the fixture body 20 so as to cover the component mounting surface 24a side.SELECTED DRAWING: Figure 5

Description

Embodiments of the present invention relate to lighting devices.

Conventionally, there is a lighting device in which a light source unit is attached to a long fixture body. In this lighting device, electric wires are routed along the longitudinal direction of the fixture body toward a predetermined position on the fixture body, and the wires that have been routed to the predetermined position of the fixture body are connected to the light source unit. The side and the light source unit side are electrically connected.

The component mounting surface of the device body is narrow, and components such as terminal blocks are attached to it, so the wires to be routed may interfere with the components. In order to avoid interference, it is necessary to attach a separate attachment part to the main body of the instrument, which places the part above the part mounting surface. In addition, a plurality of fasteners are required to fasten the electric wires routed along the length of the device body at multiple locations to the device body. Therefore, the number of parts increases in connection with the wiring of the electric wires.

JP 2017-59425 Publication

The problem to be solved by the present invention is to provide a lighting device that can reduce the number of parts.

The lighting device of the embodiment includes a long fixture body, an electric wire, and a light source unit. The instrument body has an elongated component mounting surface and a groove that opens toward the component mounting surface along the longitudinal direction of the component mounting surface. The electric wire is routed into the groove along the longitudinal direction of the instrument body. The light source unit is attached to the instrument body so as to cover the component mounting surface side.

According to the lighting device of the embodiment, it can be expected that the number of parts can be reduced.

FIG. 1 is an exploded perspective view of a lighting device showing one embodiment. It is an exploded perspective view of the lighting device same as the above. It is a perspective view of the fixture main body of the lighting device same as the above. It is a side view which shows the attachment structure of the same lighting device as seen from the longitudinal direction, with a part omitted. It is a bottom view which shows the wiring structure of the fixture main body of a lighting device same as the above.

Hereinafter, one embodiment will be described with reference to the drawings.

A lighting device 10 is shown in FIGS. 1 and 2. The lighting device 10 is a direct-mounted lighting device that is directly attached to a ceiling surface or the like where it is installed. The lighting device 10 is a slim lighting device that is elongated and has a width dimension in the width direction, which is a short direction intersecting the longitudinal direction, which is smaller than a height dimension in the height direction. In this embodiment, the lighting device 10 is assumed to be mounted on a ceiling surface, and corresponding to this mounting orientation, the front side of the lighting device 10 will be described as a lower surface side, and the back side of the lighting device 10 will be described as an upper surface side.

The lighting device 10 includes a main unit 11 and a light source unit 12 that is detachably attached to the main unit 11.

The main body unit 11 includes a long metal instrument main body 20 that is a metal casing, and terminal blocks 21 and attachment springs 22 that are attached near both ends of the instrument main body 20 in the longitudinal direction.

As shown in FIG. 3, the device main body 20 includes a top plate portion 24 having a component mounting surface 24a on one lower surface side, and a substantially U-shape from both sides of the top plate portion 24 in the width direction to the upper surface side. It has a protrusion 25 that is bent so as to protrude, and side plate parts 26 on both sides formed of the outer surfaces of the protrusion 25 on both sides. A groove 27 that opens toward the component mounting surface 24a of the top plate 24, which is the lower surface, is formed along the longitudinal direction inside the protrusion 25. The distal end side of the side plate part 26 projects downward from the component mounting surface 24a, and has a groove opening 27a in the groove 27 in a direction that narrows the opening width of the groove 27 between the component mounting surface 24a and the component mounting surface 24a. A presser portion 28 is formed that slopes toward the 27a side. The holding portions 28 on both sides are configured such that the width of the groove opening 27a that opens on the component mounting surface 24a side of the groove portion 27 is narrower than the width on the back side of the groove portion 27.

As shown in FIGS. 1 and 2, a mounting hole 29 for mounting on the ceiling, a power supply wiring hole 30, and a signal wiring hole 31 are provided near both longitudinal ends of the top plate portion 24. It is being An annular bush 32 made of resin, for example, is attached to the edges of the wiring holes 30 and 31.

The terminal block 21 is attached to the component attachment surface 24a at two locations in the longitudinal direction of the instrument body 20. As shown in FIG. 4, the widthwise dimension of the terminal block 21 is wider than the widthwise dimension of the component mounting surface 24a of the instrument main body 20, and both widthwise sides are grooves of the grooves 27 on both sides of the instrument main body 20. It is arranged at a position facing the opening 27a.

The mounting spring 22 is integrally formed of a metal leaf spring. The mounting spring 22 includes a mounting portion 34 that is mounted on the component mounting surface 24a of the instrument main body 20, and a pair of mounting portions 34 that are bent diagonally downward from opposite sides of the mounting portion 34 so that the distal ends thereof expand toward each other. The arm portion 35 is formed to have a substantially U-shaped cross section. A hook portion is formed in a bent manner on the distal end side of the pair of arm portions 35 .

Further, the light source unit 12 is shown in FIGS. 1, 2, and 4. The light source unit 12 includes a cover 40 that is a resin housing, a base 41 that is a support part that is attached to the inside of the cover 40, a light source module 42 that is a light source that is attached to the bottom side of the base 41, and a top surface of the base 41. It includes a power supply section 43 and a spring receiver member (spring receiver metal fitting) 44 that are attached to each side.

The cover 40 is made of resin, is elongated, and has an external shape in which the width in the width direction intersecting the longitudinal direction is smaller than the height in the height direction. The cover 40 has a front face part 47 which is a lower face part on one side in the height direction, side parts 48 on both sides in the width direction, and end face parts 49 at both ends in the longitudinal direction. An opening 50 is formed on the upper surface side. Therefore, the cover 40 has a substantially U-shaped cross section in both the longitudinal direction and the width direction.

The front side of the cover 40 , that is, the front side 47 , the side surface 48 , and the lower side of the end face 49 are formed into a transparent part 51 through which the light from the light source module 42 passes, and the rear side of the cover 40 , that is, the side face 48 and the end face The upper side of the portion 49 is formed as a non-transparent portion 52 through which light does not pass. The cover 40 is integrally formed with a transparent part 51 and a non-transparent part 52 by two-color molding of different resin materials.

The dimension between the inner sides of the side surfaces 48 on both sides of the cover 40, that is, the dimension in the width direction of the opening 50 is wider than the width dimension in the width direction of the instrument main body 20, and the dimension between the inner sides of the end surfaces 49 on both ends of the cover 40. That is, the longitudinal dimension of the opening 50 is longer than the longitudinal dimension of the instrument main body 20, and the instrument main body 20 is configured to be able to fit into the opening 50. The opening 50 of the cover 40 is fitted around the instrument main body 20, so that the cover 40 and the instrument main body 20 are positioned relative to each other in the longitudinal direction and the width direction.

On the inner surface of the side surface portions 48 on both sides of the cover 40, holding portions 53 for holding the base 41 are provided below the non-light-transmitting portions 52. On the upper end side of the inner surface of the side surface portions 48 on both sides of the cover 40, opposing intervals in the width direction are inclined so as to become wider toward the upper end side, that is, to expand toward the upper opening direction. An opening inclined portion 54 is provided.

The base 41 is made of metal, for example, and is formed into a long plate shape. The base 41 is attached within the cover 40 with both sides in the width direction held by holding parts 53 on both sides.

A light source module 42 is attached to the lower surface side of the base 41. A substantially L-shaped support portion 56 that supports one side of the light source module 42 in the width direction is provided on one side of the lower surface of the base 41 in the width direction. A plurality of screws 57 for screwing the other side of the light source module 42 in the width direction are screwed onto the other side of the lower surface of the base 41 in the width direction. A stepped screw is used as the screw 57. The support portion 56 and the plurality of screws 57 do not fix the light source module 42, but support the light source module 42 so as to allow movement within a supportable range.

The light source module 42 includes a long substrate 59 and a plurality of light emitting elements 60 mounted on the front surface of the substrate 59 at predetermined intervals along the longitudinal direction. The light emitting element 60 is a semiconductor light emitting element such as an LED or an organic EL. Both sides of the substrate 59 in the width direction are attached to the lower surface side of the base 41 by support portions 56 and screws 57.

The power supply unit 43 shown in FIG. 2 is attached to the upper surface of the base 41 by screws. The power supply section 43 is arranged inside the cover 40. The power supply unit 43 converts external power input through the terminal block 21 into lighting power necessary for lighting the light emitting element 60 of the light source module 42 and supplies the lighting power to the light source module 42 . Further, the power supply section 43 inputs a dimming signal to enable dimming control of the brightness of the light emitting element 60.

The spring bearing member 44 shown in FIG. 2 is integrally formed of a metal plate and is attached to the upper surface side of the base 41. The spring receiving member 44 has a pair of spring receiving grooves 62, and when the pair of arm portions 35 of the mounting spring 22 are inserted into the pair of spring receiving grooves 62 and engaged with the spring receiving member 44, the instrument main body 20 supports the light source unit 12.

Moreover, FIG. 5 is a bottom view showing the wiring structure of the instrument main body 20.

During construction, a power source wire 71, which is an external wiring 70, is inserted into the power source wiring hole 30 at one end of the instrument body 20 from the outside. The power supply line 71 has a structure in which a plurality of covered wires each having a core wire covered therewith are covered with a cylindrical covering body. The power line 71 is routed from the wiring hole 30 toward the terminal block 21 along the component mounting surface 24a of the device body 20, and the plurality of electric wires 72 pulled out from the tip of the power line 71 are connected to one end surface side of the terminal block 21. is inserted and electrically connected. The power line 71 supplies AC power from a commercial AC power source, and uses relatively thick wiring such as an F cable, for example.

The terminal block 21 on one end side of the device main body 20 and the terminal block 21 on the other end side are electrically connected by an electric wire 75 which is an internal wiring 74. The electric wire 75 has a structure in which a plurality of covered electric wires each having a core wire covered therewith are covered with a cylindrical covering body. The electric wire 75 is inserted into the groove 27 on one side of the instrument main body 20 in the width direction, and is routed inside the groove 27 along the longitudinal direction. The electric wire 75 wired within the groove portion 27 is held within the groove portion 27 because the groove opening 27a of the groove portion 27 is narrowed by the holding portion 28.

Note that the terminal block 21 on the other end side is electrically connected to the feed wiring, which is an external wiring 70 for electrically connecting to another lighting device 10 installed adjacent to the other end side of the appliance main body 20. Connected.

A main body side wiring unit 76 electrically connected to the light source unit 12 is connected to the terminal block 21 on one end side of the instrument main body 20 . The main body side wiring unit 76 includes a power supply electric wire 77 which is an internal wiring 74, and a main body side connector 78 connected to one end of the electric wire 77. Further, the main body side wiring unit 76 includes a signal wire 79, and one end side of this electric wire 79 is electrically connected to the main body side connector 78.

The electric wire 77 has a structure in which a plurality of covered electric wires each having a core wire covered therewith are covered with a cylindrical covering body. The other end side of the electric wire 77 is inserted from the other end side of the terminal block 21 and electrically connected. The electric wire 77 is inserted from the terminal block 21 into the groove 27 on one side of the instrument main body 20 in the width direction, and is wired along the longitudinal direction within the groove 27 toward one end side of the instrument main body 21. The electric wire 77 wired within the groove portion 27 is held within the groove portion 27 because the groove opening 27a of the groove portion 27 is narrowed by the holding portion 28. Furthermore, since the terminal block 21 is attached to the device main body 20 after the electric wire 77 is wired in the groove 27 and the terminal block 21 is placed in a position facing the groove opening 27a of the groove 27, the wire 77 is not wired in the groove 27. The electric wire 77 is prevented from coming off from the groove opening 27a.

The main body side connector 78 is arranged on one side of the instrument main body 20 in the width direction at a position facing the power supply wiring hole 30. That is, the main body side connector 78 is arranged such that at least a portion of the main body side connector 78 is located on the side of the wiring hole 30.

One end side of the electric wire 77 is led out from the groove 27 to the component mounting surface 24a side of the instrument main body 20, and is held in the instrument main body 20 by a holding member 80 at a position near the power supply wiring hole 30. The holding member 80 is, for example, a binding band, and holds the electric wires 77 and 79 together in a bundle. The holding member 80 is attached to one side of the instrument main body 20 in the width direction, and arranges the electric wire 77 and the main body side connector 78 on one side of the instrument main body 20 in the width direction. The holding position of the electric wire 77 by the holding member 80 is, for example, a position of about 10 mm from the main body side connector 78.

The appliance main body 20 may be wired with an electric wire 81 that is a signal line for transmitting a dimming signal. The electric wire 81 has a structure in which a plurality of covered electric wires each having a core wire covered therewith are covered with a cylindrical covering body. In this case, the electric wire 81 is inserted into the groove 27 on the other end side in the width direction of the instrument main body 20, and is routed inside the groove 27 along the longitudinal direction. The electric wire 81 wired within the groove portion 27 is held within the groove portion 27 because the groove opening 27a of the groove portion 27 is narrowed by the holding portion 28. Furthermore, since the terminal block 21 is attached to the device main body 20 after the wiring 81 is wired in the groove 27 and the terminal block 21 is placed in a position facing the groove opening 27a of the groove 27, the wiring is not wired in the groove 27. The electric wire 81 is prevented from coming off from the groove opening 27a.

Both ends of the electric wire 81 are electrically connected to a signal terminal block 82 . A signal wire 79 of the main body wiring unit 76 is electrically connected to a signal terminal block 82 arranged at one end of the instrument main body 20 . A signal wire, which is an external wiring 70 drawn from the signal wiring hole 31 of the device main body 20, is connected to a terminal block (same as the terminal block 82 at one end), which is not shown, arranged at the other end of the device main body 20. connected.

Further, as shown in FIGS. 1 and 2, the light source unit 12 includes a light source side wiring unit 84 that is electrically connected to the main unit 11. The light source side wiring unit 84 includes an electric wire 85 and a light source side connector 86 connected to one end of the electric wire 85. The other end side of the electric wire 85 is electrically connected to the power supply section 43.

To install the lighting device 10, the power wire 71 drawn out from the ceiling is passed through the wiring hole 30 at one end of the fixture body 20, and the fixture body 20 is attached to the ceiling using a screw inserted through the mounting hole 29.

The power wire 71 passed through the wiring hole 30 is routed from the wiring hole 30 toward the terminal block 21 along the component mounting surface 24a of the appliance body 20, and the plurality of electric wires 72 pulled out from the tip of the power wire 71 are connected to the terminal block 21. It is electrically connected to the stand 21.

The main body side connector 78 of the main body side wiring unit 76 and the electric wire 77 between this main body side connector 78 and the holding member 80 are located in line with the power supply line 71 that is routed from the wiring hole 30 along the longitudinal direction of the instrument main body 20. It is located in Therefore, the position and orientation of the main body side connector 78 are regulated by the power supply line 71.

While lifting the light source unit 12, the main body side connector 78 on the instrument main body 20 side and the light source side connector 85 on the light source unit 12 side are electrically connected.

At this time, the main body side connector 78 of the main body side wiring unit 76 is arranged at a position facing the wiring hole 30 of the instrument main body 20 and is held on the instrument main body 20 by the holding member 80 at a position near the wiring hole 30; In other words, the electric wire 77 is held by the holding member 80 at a position close to the main body side connector 78, and the electric wire 77 between the main body side connector 78 and this main body side connector 78 and the holding member 80 is removed from the wiring hole 30. The position and orientation of the main body side connector 78 are regulated and maintained by being arranged in a position aligned with the power supply line 71 wired along the longitudinal direction of the instrument main body 20. Therefore, the light source side connector 85 can be easily connected to the main body side connector 78 by, for example, one-handed operation.

The light source unit 12 is pushed up toward the instrument main body 20 while aligning the opening 50 of the cover 40 of the light source unit 12 with the periphery of the instrument main body 20. At this time, since the holding parts 28 on both sides of the instrument body 20 in the width direction are inclined, and the opening inclined parts 54 are provided on both sides of the cover 40 in the width direction, the width direction of the instrument body 20 is The position of the cover 40 in the width direction can be easily adjusted.

By pushing up the light source unit 12 toward the instrument main body 20, the attachment spring 22 of the instrument main body 20 and the spring receiving member 44 of the light source unit 12 are engaged, and the light source unit 12 is attached to the instrument main body 20.

In addition, when the lighting device 10 is installed, the groove opening 27a of the groove 27 of the appliance main body 20 faces downward, and the wires 75, 77, 81 that are wired are in the direction in which they come off due to gravity. Since the width of the groove opening 27a of the groove part 27 is narrowed by the holding part 28 provided on the tip side of the groove part 27, the electric wires 75, 77, 81 wired in the groove part 27 are prevented from coming off.

Furthermore, since the terminal block 21 is disposed at a position facing the groove opening 27a of the groove 27 of the device main body 20, the electric wires 77 and 81 wired inside the groove 27 at the position of the terminal block 21 are prevented from coming off from the groove opening 27a. is prevented.

In addition, when removing the light source unit 12 from the instrument body 20, by pulling the light source unit 12 down from the instrument body 20, the engagement between the mounting spring 22 and the spring receiving member 44 is released, and furthermore, the light source unit 12 is removed from the instrument body. 20 and disconnect the light source side connector 86 from the main body side connector 78. Also at this time, since the position and orientation of the light source side connector 86 are maintained, the main body side connector 78 can be easily removed from the light source side connector 86.

In the lighting device of this embodiment, the main body side connector 78 of the main body side wiring unit 76 is arranged at a position facing the wiring hole 30 of the appliance main body 20, and the appliance main body 20 is held by the holding member 80 at a position near the wiring hole 30. Therefore, the position and orientation of the main body side connector 78 are held in a regulated state by the holding member 80, and when the light source unit 12 is attached to the instrument main body 20, the light source side connector 86 is held with respect to the main body side connector 78. can be easily connected, improving workability.

Furthermore, the main body side connector 78 of the main body side wiring unit 76 and the electric wire 77 between this main body side connector 78 and the holding member 80 are connected to the power supply line 71 that is routed from the wiring hole 30 along the longitudinal direction of the instrument main body 20. Since they are arranged side by side, the position and orientation of the main body side connector 78 can be regulated by the power line 71 together with the holding member 80.

Moreover, since the instrument main body 20 is provided with a groove 27 that opens toward the component attachment surface 24a along the longitudinal direction of the component attachment surface 24a, the electric wires 75, 77, and 81 can be wired in the groove 27. Therefore, even if the widthwise dimension of the device main body 20 is small and the terminal block 21 is placed at a position where the electric wires 77, 81 are wired, another mounting component is required to place the terminal block 21 in a position that is lifted from the component mounting surface 24a. There is no need to use a plurality of fasteners to fasten the electric wires 75, 77, 81 wired along the longitudinal direction of the instrument body 20 to the instrument body 20 at a plurality of locations, and the number of parts can be reduced.

Furthermore, since the terminal block 21 is disposed at a position facing the groove opening 27a of the groove 27 of the device main body 20, the electric wires 77 and 81 wired inside the groove 27 at the position of the terminal block 21 are prevented from coming off from the groove opening 27a. can be regulated.

Furthermore, since the width of the groove opening 27a of the groove 27 is narrowed by the holding part 28 provided on the tip side of the side plate 26 of the instrument main body 20, the electric wires 75, 77, 81 wired inside the groove 27 can be Can be retained.

In addition, the power supply system and the signal system are separated because the power supply system electric wires 75 and 77 are routed to the groove 27 on one side in the width direction of the instrument body 20, and the signal system electric wire 81 is routed to the groove 27 on the other side. This allows wiring to be done with ease, reducing the influence of noise on the signal system.

Note that the grooves 27 on both sides of the instrument body 20 in the width direction may have different sizes. For example, the groove 27 in which the signal wire 81 is routed may be smaller than the groove 27 in which the power supply wires 75 and 77 are routed.

Although several embodiments of the invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

10 lighting device 12 light source unit 20 fixture body 21 terminal block 24a component mounting surface 27 groove 75, 77, 81 electric wire

Claims (2)

an elongated instrument body having an elongated component mounting surface and a groove opening toward the component mounting surface along the longitudinal direction of the component mounting surface;
an electric wire wired in the groove along the longitudinal direction of the instrument body;
a light source unit that is attached to the instrument main body while covering the component mounting surface side;
A lighting device comprising: The lighting device according to claim 1, further comprising a terminal block attached to the component mounting surface facing the opening of the groove of the device main body.

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