JP2022022611A - Lighting fixture - Google Patents

Abstract

To improve workability in work for fitting a light source unit on a fixture body.SOLUTION: A lighting fixture includes: a long-sized fixture body 1; a long-sized light source unit; and a fitting member detachably fitting the light source unit to the fixture body 1. The light source unit includes: a long-sized light source module; and a support member supporting the light source module. The light source includes: a long-sized substrate; and a plurality of LEDs disposed on the surface of the substrate. The support member includes: a main part formed in a long-sized plate state and facing the rear surface of the substrate; and a pair of side wall parts rising on the rear surface side of the substrate from the pair of side ends along the longitudinal direction of the main part. The fixture body 1 includes a guide member 40 for guiding the tip end of each of the pair of side wall parts toward a direction separating from the fixture body 1 when fitting the light source unit.SELECTED DRAWING: Figure 8

Description

The present disclosure relates to a lighting fixture, and more particularly to a lighting fixture including a light source unit and a fixture body to which the light source unit is detachably attached.

As a conventional example, the lighting device (lighting fixture) described in Patent Document 1 will be illustrated. The lighting device described in Patent Document 1 includes a long light source unit having a light emitting element as a light source, and a long lighting device (equipment body) having an instrument body to which the light source unit is attached. The instrument body is formed in the shape of a long box having a bottom portion formed in the shape of a rectangular plate and side portions provided so as to rise and project from both sides of the bottom in the lateral direction.

The light source unit is formed in a long shape, and a part of the light source unit is housed in the fixture body and can be detachably attached to the fixture body. Spring is provided at both ends of the light source unit in the longitudinal direction. Each of the two springs has a spring engaging portion. The spring engaging portion engages with a convex portion provided at the tip of a pair of side surface portions of the instrument body.

In the lighting device described in Patent Document 1, when the light source unit is attached to the fixture main body, the spring engaging portion serves as a guide for the light source unit with respect to the fixture main body, so that the light source unit can be easily attached to the fixture main body.

Japanese Unexamined Patent Publication No. 2020-24806

However, when the fixture body does not have a pair of side walls, it becomes difficult to guide the light source unit when mounting the light source unit on the fixture body, and the workability of the light source unit mounting work may be reduced.

An object of the present disclosure is to provide a lighting fixture capable of improving the workability of the work of attaching the light source unit to the fixture main body.

The lighting fixture according to one aspect of the present disclosure includes a long fixture main body, a long light source unit, and a mounting member for detachably attaching the light source unit to the fixture main body. The light source unit has a long light source module and a support member that supports the light source module. The light source module has a long substrate and a plurality of light emitting elements arranged on the surface of the substrate. The support member is formed in a long plate shape and has a main portion facing the back surface of the substrate and a pair of side walls standing up from a pair of side ends along the longitudinal direction of the main portion to the back surface side of the substrate. Has a part. The fixture body has a guide member that guides the tips of the pair of side wall portions in a direction away from the fixture body when the light source unit is attached.

The lighting fixture of the present disclosure has an effect that the workability of the work of attaching the light source unit to the fixture main body can be improved.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present disclosure. FIG. 2 is a front view of the same lighting fixture. FIG. 3 is a side view of the same lighting fixture. FIG. 4 is an exploded perspective view of the lighting fixture of the above, which is partially broken. FIG. 5 is an exploded perspective view of the same lighting fixture. FIG. 6 is a plan view of the same lighting fixture. FIG. 7 is a front view of the fixture body in the same lighting fixture. FIG. 8 is an exploded perspective view of the lighting fixture of the same as above, in which a part of the fixture body is omitted. FIG. 9 is a front view in which a part of the fixture main body of the lighting fixture is omitted. FIG. 10 is a plan view of the light source unit in the same lighting fixture. FIG. 11 is a cross-sectional view of the same lighting fixture. FIG. 12 is a perspective view of an end member in the same lighting fixture. FIG. 13 is an exploded perspective view of an end member in the same lighting fixture. FIG. 14 is an exploded perspective view of an end member in the same lighting fixture. FIG. 15 is a side view in which the end member of the lighting fixture of the same is omitted. FIG. 16 is a cross-sectional view of the same lighting fixture with a part omitted. FIG. 17 is a front view in which a part of the lighting fixture of the same is omitted. FIG. 18 is an exploded perspective view in which a part of the fixture body is omitted in the modified example of the lighting fixture of the same. FIG. 19 is a front view in which a part of the fixture main body is omitted in the modified example of the lighting fixture of the same.

The embodiments of the present disclosure will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic view, and the ratio of the size and the thickness of each component does not necessarily reflect the actual dimensional ratio. The configuration described in the following embodiments is only an example of the present disclosure. The present disclosure is not limited to the following embodiments, and various changes can be made depending on the design and the like as long as the effects of the present disclosure can be achieved.

(1) Outline of the Embodiment of the present disclosure In the lighting fixture A1 according to the embodiment of the present disclosure, the long fixture main body 1, the long light source unit 2, and the light source unit 2 can be attached to and detached from the fixture main body 1. It is provided with a mounting member 3 to be attached to. The light source unit 2 has a long light source module 20 and a support member 21 that supports the light source module 20. The light source module 20 has a long substrate 200 and a plurality of LEDs 201 arranged on the surface of the substrate 200. The support member 21 is formed in a long plate shape and has a main portion 210 facing the back surface of the substrate 200 and a pair of side ends of the main portion 210 that stand upright on the back surface side of the substrate 200 from a pair of side ends along the longitudinal direction. It has a side wall portion 211. The instrument main body 1 has a guide member 40 that guides the tips of the pair of side wall portions 211 in a direction away from the instrument main body 1 when the light source unit 2 is attached.

Therefore, in the lighting fixture A1 according to the embodiment of the present disclosure, since the guide member 40 guides the tips of the pair of side wall portions 211 in the direction away from the fixture main body 1, the lighting fixture A1 is compared with the case where the guide member 40 is not provided. , The tip of the side wall portion 211 is less likely to be caught by the instrument body 1. As a result, the lighting fixture A1 according to the embodiment of the present disclosure can improve the workability of the work of attaching the light source unit 2 to the fixture main body 1 as compared with the conventional example such as the lighting device described in Patent Document 1. ..

(2) Detailed Description of Embodiment (2-1) Lighting Fixture The lighting fixture A1 (hereinafter, abbreviated as lighting fixture A1) according to the embodiment of the present disclosure is long as shown in FIGS. 1 to 6. The fixture main body 1 and the long light source unit 2 are provided, and a mounting member 3 for attaching and detaching the light source unit 2 to the fixture main body 1 is provided. The lighting fixture A1 is directly attached to, for example, the ceiling of an office building in an office building. In the following description, unless otherwise specified, the vertical, front-back, and left-right directions indicated by the arrows in FIG. 1 are defined as the up-down, front-back, and left-right directions of the luminaire A1 and the light source unit 2, respectively. ..

(2-2) Instrument body The instrument body 1 consists of a long rectangular bottom plate 10 and a pair of bottom plates 10 rising upward from both ends (front end and rear end) along the longitudinal direction (left-right direction). It has a side plate 11 (see FIG. 4). The bottom plate 10 and the pair of side plates 11 are integrally formed by bending one metal plate. That is, the pair of side plates 11 has a function of improving the strength of the bottom plate 10.

The bottom plate 10 has two first wire holes 12, two second wire holes 13, two bolt insertion holes 14, and two hook holes 18 (see FIGS. 4 and 6).

The two first electric wire holes 12 are circular holes provided at both ends (left end and right end) in the longitudinal direction of the bottom plate 10. A power cable 80 connected to an external power source (for example, a commercial power system) is inserted into the first electric wire hole 12 of the two first electric wire holes 12 (see FIG. 7). A bushing 120 made of an annular synthetic resin molded body is fitted in each first electric wire hole 12, and the power cable 80 is protected from the edge of the first electric wire hole 12 of the bottom plate 10 by the bushing 120.

The power cable 80 is connected to a power terminal block 15 attached to the lower surface of the bottom plate 10 (see FIG. 7). The power terminal block 15 is attached near the first electric wire hole 12 of the bottom plate 10. The power cable 80 is electrically connected to the two electric wires 17 via the power terminal block 15.

Two electric wires 17 connected to one power terminal block 15, two electric wires 17 connected to the other power terminal block 15, and two electric wires 17 connected to the plug connector 16 are closed-ended connections. Each child 82 is connected by one (see FIG. 7). One of the three electric wires included in the power cable 80 (the electric wire of the grounding electrode) is electrically connected to the bottom plate 10 of the instrument main body 1 by a crimp terminal.

The two second wire holes 13 are oval holes provided between the center of the bottom plate 10 in the longitudinal direction and each of the first wire holes 12 (see FIG. 7). A signal cable connected to an external signal transmission source is inserted into the second electric wire hole 13 of the two second electric wire holes 13. The signal cable inserted through the second electric wire hole 13 is connected to a signal terminal block 52 (described later) provided in the light source unit 2. However, a bushing portion 43 of the functional block 4 described later is fitted in each second electric wire hole 13, and the signal cable is protected from the edge of the second electric wire hole 13 of the bottom plate 10 by the bushing portion 43 (FIG. FIG. 7).

Each of the two bolt insertion holes 14 is an oval hole provided between the power terminal block 15 of the bottom plate 10 and the second electric wire hole 13 (see FIG. 7). A hanging bolt protruding from the ceiling is inserted into each of these two bolt insertion holes 14. Then, the nut is tightened to the hanging bolt inserted into the bolt insertion hole 14, so that the instrument main body 1 is fixed to the ceiling.

Each of the two hook holes 18 is a Daruma hole provided closer to the center than the second wire hole 13 of the bottom plate 10 (see FIG. 7). The tips of two strings for temporarily hanging the light source unit 2 are inserted into these two hook holes 18 and hooked.

(2-3) Mounting member Two mounting members 3 are provided on the instrument main body 1. Each mounting member 3 has one mounting spring 30 (see FIGS. 4 and 5). The mounting spring 30 has a pair of spring pieces 300 and a connecting piece 301 that connects the pair of spring pieces 300 to each other (see FIG. 8). The pair of spring pieces 300 and the connecting piece 301 are formed in a U shape by bending a strip-shaped metal plate. The tip portion (lower end portion) of each spring piece 300 is bent in a V shape so as to be inclined inward toward the tip end (lower end portion).

These two mounting springs 30 are fixed to the bottom plate 10 of the instrument body 1 by screwing. That is, the connecting piece 301 of each mounting spring 30 is screwed between the power terminal block 15 and the bolt insertion hole 14 in the bottom plate 10. Each of the pair of spring pieces 300 can be deformed (deflected) along the lateral direction (front-back direction) of the instrument body 1.

(2-4) Functional block The instrument main body 1 has two functional blocks 4 (see FIG. 4). Each functional block 4 has a guide member 40, a limiting member 41, a holding member 42, and a bushing portion 43 (see FIG. 8). The functional block 4 is composed of a synthetic resin molded body in which a guide member 40, a limiting member 41, a holding member 42, and a bushing portion 43 are integrally formed. However, the guide member 40, the limiting member 41, the holding member 42, and the bushing portion 43 may be formed separately, or at least two members may be integrally formed.

The limiting member 41 is formed in the shape of a quadrangular flat plate (see FIG. 8). The limiting member 41 is arranged one by one inside the pair of spring pieces 300 of the mounting spring 30. Then, when each spring piece 300 is deformed inward (when bent), the amount of deformation (deflection amount) of each spring piece 300 is limited by the contact of each spring piece 300 with the limiting member 41. That is, the limiting member 41 can prevent the spring piece 300 of the mounting spring 30 from being plastically deformed.

The guide member 40 has four guide pieces 400 (see FIG. 8). One of the four guide pieces 400 is arranged at both ends of each of the pair of limiting members 41. That is, the limiting member 41 is arranged between the two guide pieces 400 arranged in the longitudinal direction (left-right direction) of the instrument main body 1.

Each guide piece 400 is formed in a prismatic shape having a triangular tip (lower end). Each guide piece 400 is formed to have a length in which the tip of each guide piece 400 is located ahead (below) the tip of the spring piece 300 of the mounting spring 30 in a state where the functional block 4 is attached to the instrument main body 1. ing. However, the guide pieces are formed in a U shape by connecting the tips (lower ends) of the two guide pieces 400 arranged along the lateral direction (front-back direction) of the instrument body 1 among the four guide pieces 400. It doesn't matter.

The holding member 42 has a pair of a first holding piece 421, a second holding piece 422, and a third holding piece 423 (see FIGS. 7-9). The pair of first holding pieces 421 is formed in the shape of a long plate having one end curved in the longitudinal direction. Further, the pair of first holding pieces 421 is configured to surround the periphery of the bolt insertion hole 14 when viewed from the vertical direction in a state where the functional block 4 is attached to the instrument main body 1. The pair of first holding pieces 421 is configured to form a space for wiring between the pair of first holding pieces 421 and the side plate 11 of the instrument main body 1 and to hold the electric wires 17 arranged in the space. By holding the electric wire 17 by the pair of first holding pieces 421, it is possible to suppress the occurrence of a problem that the coating of the electric wire 17 is damaged by the hanging bolt inserted into the bolt insertion hole 14. See FIGS. 7 and 9).

The second holding piece 422 is formed in a thin plate shape so as to straddle the tips (lower ends) of the pair of limiting members 41 (see FIGS. 7-9). The second holding piece 422 is configured to form a space for wiring between the second holding piece 422 and the bottom plate 10 of the instrument main body 1 and hold the electric wire 17 arranged in the space (see FIGS. 7 and 9). ..

The third holding piece 423 is formed in a substantially L shape (see FIG. 8). The third holding piece 423 is arranged on the side opposite to the first holding piece 421 (the side adjacent to the power terminal block 15) with the limiting member 41 interposed therebetween (see FIG. 7). The third holding piece 423 is configured to hold the electric wire 17 below the electric wire 17 connected to the power terminal block 15 (see FIGS. 7 and 9).

The bushing portion 43 includes a main body portion 430 formed in an oval tubular shape, a flange portion 431 protruding outward from the main body portion 430 from the lower end of the main body portion 430, and a tongue piece 432 protruding from the tip of the flange portion 431. (See FIG. 8). A circular screw insertion hole 433 penetrates the tongue piece 432. The main body portion 430 is inserted into the second electric wire hole 13 in a state where the functional block 4 is attached to the instrument main body 1 (see FIG. 7). That is, the bushing portion 43 can protect the coating of the signal cable from the edge of the second electric wire hole 13 of the bottom plate 10 by the main body portion 430 inserted into the second electric wire hole 13.

The functional block 4 has a plurality of claws 44 (see FIG. 8). One claw 44 is provided at the tip of the flange portion 431. The remaining two claws 44 are provided at the ends of the guide member 40. In the bottom plate 10 of the instrument main body 1, a screw hole 100 is provided in the vicinity of the second electric wire hole 13. Further, in the bottom plate 10, a C-shaped hook groove 101 is provided between the mounting spring 30 and the power supply terminal block 15.

The functional block 4 hooks the claws 44 provided at the tip of the flange portion 431 to the edges of the second electric wire hole 13, and attaches the two claws 44 provided at the ends of the guide member 40 to the edges of both ends of the hook groove 101. It is attached to the instrument main body 1 by being hooked and screwing the screw inserted into the screw insertion hole 433 of the tongue piece 432 into the screw hole 100.

(2-5) Light Source Unit The light source unit 2 includes a light source module 20, a support member 21, a cover 22, a power supply unit 5, and a pair of end members 6 (see FIGS. 4 and 5).

(2-5-1) Light Source Module The light source module 20 has two substrates 200 and a plurality of light emitting elements (LED201) mounted on the surface (lower surface) of each substrate 200 (see FIG. 5). .. Each substrate 200 is formed in a long rectangular shape. A conductor for connecting a plurality of LEDs 201 is formed on the surface of each substrate 200. The conductors of the two substrates 200 are connected via a connector mounted on the end portion of each substrate 200 in the longitudinal direction.

Each of the plurality of LEDs 201 is a package type white LED for lighting. However, the light emitting element of the light source module 20 may be a light emitting element other than the LED such as an organic electroluminescence element or a semiconductor laser element.

(2-5-2) Power Supply Unit The power supply unit 5 includes a power supply circuit 50 composed of a printed circuit and a power supply case 51 accommodating the power supply circuit 50 (see FIGS. 4 and 11). The power supply case 51 is formed in a long box shape with one surface (lower surface) open. The power supply circuit 50 includes a rectifier circuit that rectifies an AC voltage supplied from an external power source via an electric wire 54, a booster circuit that boosts and smoothes a pulsating voltage rectified by the rectifier circuit, and a DC voltage output from the booster circuit. It has a step-down circuit for stepping down the voltage, a control circuit for controlling the step-down circuit, and the like. The control circuit controls the step-down circuit so that the current (load current) supplied to the light source module 20 matches the target value and becomes a constant current. Further, the control circuit adjusts the target value of the load current according to the signal (dimming signal) input from the signal transmission source via the signal cable and the signal terminal block 52 to dimm the light source module 20. The signal transmission source is, for example, a controller for lighting installed on the wall of the office. A receptacle connector 55 that can be connected to the plug connector 16 of the instrument main body 1 is attached to the tip of the electric wire 54 drawn from the power supply case 51 (see FIG. 10).

(2-5-3) Support member The support member 21 has a main portion 210 formed in a long plate shape and a pair of side ends (front end and rear end) along the longitudinal direction (left-right direction) of the main portion 210. ) With a pair of side wall portions 211 rising upward from (see FIG. 5). The pair of side wall portions 211 are formed in a long rectangular shape.

Further, the support member 21 has a positioning piece 212, a locking piece 213, a pair of cover mounting pieces 214, a pair of hooking portions 31, and a pair of protrusions 215 (see FIG. 11).

The positioning piece 212 is formed in a prismatic shape protruding downward from the rear end portion on the lower surface of the main portion 210 (see FIG. 11). The locking piece 213 is formed in an L shape protruding downward from the front end portion on the lower surface of the main portion 210. The positioning piece 212 and the locking piece 213 are each formed over the entire length of the main portion 210 so as to be parallel to each other along the longitudinal direction of the main portion 210. The substrate 200 of the light source module 20 is inserted into the gap between the locking piece 213 and the main portion 210, and the substrate 200 is locked to the locking piece 213 (see FIG. 11). Then, the substrate 200 is positioned by the positioning piece 212 in the front-rear direction of the main portion 210. The substrate 200 is screwed to the main portion 210 by a plurality of screws.

Each of the pair of cover mounting pieces 214 is formed in an L shape and protrudes downward from each side end along the longitudinal direction of the main portion 210 (see FIG. 11). A pair of mounting portions 222 of the cover 22 are hooked on each cover mounting piece 214 as described later.

Each of the pair of hooking portions 31 projects inward from substantially the center in the vertical direction on the inner surface of the pair of side wall portions 211 over the entire length in the longitudinal direction of each side wall portion 211 (see FIG. 11). However, the tip portion of each hook portion 31 is bent downward. These pair of hooking portions 31 are hooked on the tip portions of the spring pieces 300 of the two mounting springs 30 attached to the instrument main body 1. That is, the pair of hooking portions 31 together with the mounting spring 30 constitute the mounting member 3.

Each of the pair of protrusions 215 projects inward from the lower end portion of the inner side surface of the pair of side wall portions 211 over the entire length of each side wall portion 211 in the longitudinal direction (see FIG. 11). A metal material such as an aluminum alloy is extruded from the main portion 210, the pair of side wall portions 211, the positioning piece 212, the locking piece 213, the pair of cover mounting pieces 214, the pair of hooking portions 31, and the pair of protrusions 215. It is preferable that they are integrally formed by being molded.

(2-5-4) Cover The cover 22 has a front wall 220, a pair of side walls 221 and a pair of mounting portions 222 (see FIG. 5). The front wall 220 is formed in a long rectangular shape. Each of the pair of side walls 221 is formed in a long rectangular shape and projects upward from both ends (front end and rear end) along the longitudinal direction of the front wall 220. Each of the pair of mounting portions 222 is formed in a long U-shape, and projects inward from the upper end of each side wall portion 211 over the entire length of the side wall portion 211 in the longitudinal direction. Here, it is preferable that the front wall 220, the pair of side wall portions 211, and the pair of mounting portions 222 are integrally formed by extrusion molding of a synthetic resin having translucency such as a polycarbonate resin or an acrylic resin. The cover 22 is preferably formed in a milky white color by mixing a filler with a synthetic resin material in order to diffuse the light radiated from the light source module 20.

The cover 22 is attached to the support member 21 by hooking one pair of attachment portions 222 to each of the pair of cover attachment pieces 214 of the support member 21 (see FIG. 11). The cover 22 attached to the support member 21 covers the light source module 20 attached to the lower surface of the main portion 210.

(2-5-5) End member The end member 6 has a cover end portion 60, an end cap portion 61, and a fixture 62 (see FIGS. 12 to 14). The cover end portion 60 has a tubular portion 600, a wall portion 601, a protruding wall 602, a pedestal 603, a pair of connecting portions 604, and a pair of holding pieces 605.

The tubular portion 600 is formed in a square tubular shape. The wall portion 601 is formed in the shape of a quadrangular flat plate, and is coupled to one end in the axial direction of the tubular portion 600 to close one end in the axial direction of the tubular portion 600. On the upper surface of the wall portion 601 is provided with a triangular columnar mating protrusion 606 whose axial direction is the front-rear direction (see FIG. 13).

The protrusion 602 is formed in the shape of a quadrangular flat plate, and projects upward from a position closer to the wall portion 601 on the upper surface of the tubular portion 600. The pedestal 603 is formed in the shape of a quadrangular flat plate, and is arranged parallel to the upper surface of the tubular portion 600 from the upper end of the protruding wall 602.

Each of the pair of connecting portions 604 is formed in an inverted L shape, and projects upward from both front and rear ends far from the wall portion 601 on the upper surface of the pedestal 603. Each of the pair of holding pieces 605 is formed in the shape of a quadrangular flat plate, and protrudes along the axial direction of the tubular portion 600 from the front and rear ends of the upper portion at the open end (the end opposite to the wall portion 601) of the tubular portion 600. .. The tubular portion 600, the wall portion 601 and the protruding wall 602, the pedestal 603, the pair of connecting portions 604, and the pair of holding pieces 605 are integrally formed as a translucent synthetic resin molded body such as acrylic resin or polycarbonate resin. It is formed. However, since the cover end portion 60 diffuses the light radiated from the light source module 20 like the cover 22, it is preferable that the cover end portion 60 is formed into a milky white color by mixing a filler with the synthetic resin material.

The end cap portion 61 has a main body 610 having a hole 611 for wiring, and a lid 63 that is detachably attached to the main body 610 and closes the hole 611 while being attached to the main body 610. The main body 610 and the lid 63 are each made of a synthetic resin molded body having no translucency.

The main body 610 is formed in the shape of a U-shaped flat plate. A triangular columnar recess (engagement recess 618) is formed on the lower surface of the main body 610 (see FIG. 14). The front surface of the main body 610 is a flat surface, and a pair of vertical pieces 612, a horizontal piece 613, a pair of support pieces 614, and a pair of projecting pieces 615 are provided on the back surface of the main body 610.

The pair of vertical pieces 612 are formed in a substantially trapezoidal shape, and protrude from both front and rear sides of the hole 611 on the back surface of the main body 610 along the thickness direction of the main body 610. The horizontal piece 613 is formed in the shape of a quadrangular flat plate, and projects from the lower side of the hole 611 on the back surface of the main body 610 along the thickness direction of the main body 610 so as to connect the lower ends of the pair of vertical pieces 612.

One coupling groove 616 is provided at both ends of the horizontal piece 613 in the front-rear direction. These coupling grooves 616 are opened on the tip end side of the horizontal piece 613 and are formed in a quadrangular shape with the thickness direction of the main body 610 as the longitudinal direction. Further, one protrusion 617 is provided in the vicinity of the coupling groove 616 on the upper surface of the horizontal piece 613. These protrusions 617 are formed in a square columnar shape whose axial direction is the thickness direction of the main body 610.

The pair of support pieces 614 are formed in a square cone shape and project from the side surfaces of the pair of vertical pieces 612 in a direction approaching the hole 611 along the main body 610. Here, a space is formed between the pair of support pieces 614 and the main body 610 into which the flange portion 631 of the lid 63 is slidably inserted.

The pair of projecting pieces 615 are formed in a prismatic shape, and on the outer surface of the pair of vertical pieces 612, along the vertical thickness direction (front-back direction) of the vertical piece 612 from a position substantially at the center of the vertical piece 612 in the vertical direction. It protrudes outward.

The lid 63 has a main body portion 630 formed in a rectangular box shape, a flange portion 631 protruding from the lower surface of the main body portion 630 and both front and rear surfaces, a pair of support portions 632, and a claw portion 633. (See FIGS. 13 and 14).

The surface of the main body 630 is a flat surface. Of the flange portion 631, the portions protruding from the front and rear side surfaces of the main body portion 630 are formed so as to decrease in thickness downward.

Each of the pair of support portions 632 is formed in a trapezoidal shape, and protrudes in the left-right direction from the lower front and rear ends on the back surface of the main body portion 630. The claw portion 633 is provided at the center of the lower surface of the main body portion 630 in the front-rear direction, and protrudes from the flange portion 631 toward the surface side of the main body portion 630.

The fixture 62 has a fixing plate 620, a connecting plate 621, and a support plate 622. The fixing plate 620 is formed in the shape of a rectangular flat plate. The support plate 622 is formed in a rectangular flat plate shape smaller than the fixing plate 620. The connecting plate 621 is formed in a Z shape and connects the end portion of the fixing plate 620 and the end portion of the support plate 622. The fixing plate 620, the connecting plate 621, and the support plate 622 are integrally formed by bending one metal plate.

The fixing plate 620 has two circular screw insertion holes 623. The fixture 62 is fixed to the support member 21 by screwing the screws inserted into the two screw insertion holes 623 of the fixing plate 620 to the main portion 210 of the support member 21.

Two mating grooves 624 are formed in parallel on the fixing plate 620, the connecting plate 621, and the support plate 622 (see FIGS. 12 to 14).

(2-5-6) Seal member The light source unit 2 includes a seal member 7. The seal member 7 has a function of preventing foreign matter (dust, insects, etc.) from entering through the gap generated between the cover end portion 60 and the cover 22 of the end member 6.

The seal member 7 has a main body 70, a seal piece 71, and a pair of ribs 72 (see FIGS. 13 and 14). The seal member 7 is made of, for example, a silicone resin. The main body 70 is formed in a substantially square cylinder shape. However, the upper wall of the main body 70 is formed thinner than the lower wall and the front and rear walls. The seal piece 71 is formed in a U shape and protrudes outward from the vicinity of the tips of the lower side of the main body 70 and the front and rear walls. Each of the pair of ribs 72 is formed in the shape of a quadrangular flat plate, and projects upward from both front and rear ends of the upper wall of the main body 70 (see FIG. 13).

(2-6) Assembling Step of Light Source Unit Next, the assembling process of the light source unit 2 will be described.

(2-6-1) Step of attaching the power supply unit and the signal terminal block to the support member First, the power supply case 51 is screwed to the main portion 210 at substantially the center of the upper surface of the main portion 210 of the support member 21. The power supply unit 5 is attached to the support member 21 (see FIG. 10). At this time, the open surface of the power supply case 51 is closed by the main portion 210 (see FIG. 11). Further, the power supply case 51 is formed by cutting and raising a hook piece 510 projecting to the outside (see FIG. 11). Then, the hook piece 510 is hooked on the hook portion 31 of the side wall portion 211 to prevent the power supply case 51 from floating from the main portion 210 of the support member 21.

Further, the two signal terminal blocks 52 are attached to the upper surface of the main portion 210 of the support member 21 by the two attachment bases 23 (see FIGS. 10 and 15). Each mounting base 23 has a fixing portion 230 to which the signal terminal block 52 is fixed, and a screwing piece 231 screwed to the main portion 210. A step is formed between the fixed portion 230 and the screwed piece 231, and a space is formed between the fixed portion 230 and the main portion 210 in a state where the screwed piece 231 is screwed to the main portion 210 (. See FIG. 15). A V-shaped protrusion 233 is provided at the end of the fixing portion 230, and the protrusion 233 is hooked on the protrusion 215 provided on the side wall portion 211 of the support member 21, thereby fixing the fixing portion 230. Is supported by the side wall portion 211 (see FIG. 15). The two signal terminal blocks 52 and the power supply unit 5 are each connected by two signal lines 53 (see FIG. 10).

The fixing portion 230 is provided with a string attachment portion 232 to which a string for temporary fishing is attached. Then, the lower end of the string for temporary fishing is attached to the string attachment portion 232. The string for temporary fishing is used when the light source unit 2 is attached to the instrument main body 1.

(2-6-2) Attaching Step of Light Source Module to Support Member Subsequently, the light source module 20 is attached to the lower surface of the main portion 210. In the light source module 20, the substrate 200 is inserted into the gap between the locking piece 213 and the main portion 210, and the substrate 200 is screwed to the main portion 210 while being positioned by the positioning piece 212 to the main portion 210. Attached (see FIGS. 11 and 16). At this time, the light source module 20 and the power supply unit 5 are electrically connected through the through hole provided in the main portion 210.

(2-6-3) Cover Mounting Step to Support Member Subsequently, the cover 22 mounting portion 222 is inserted into the gap between the lower surface of the main portion 210 and the cover mounting piece 214 from one end in the longitudinal direction of the cover 22. As a result, the cover 22 is attached to the main portion 210 (see FIG. 11). Since the cover 22 is merely hooked on the cover mounting piece 214 of the main portion 210, the cover 22 can move with respect to the main portion 210 along the longitudinal direction of the main portion 210.

(2-6-4) End member attachment step First, the main body 70 of the seal member 7 is attached to the cylinder portion 600 so as to cover the cylinder portion 600 of the cover end portion 60. Then, the pair of coupling portions 604 of the cover end portion 60 are inserted one by one into the pair of coupling grooves 616 of the main body 610 of the end cap portion 61, and the cover end portion 60 and the main body 610 of the end cap portion 61 are coupled. (See FIG. 12). At this time, the cover end portion 60 and the end cap portion 61 are positioned by engaging the mating protrusion 606 of the cover end portion 60 and the mating recess 618 of the end cap portion 61.

Subsequently, the pair of protrusions 617 of the main body 610 of the end cap portion 61 is engaged with each of the two mating grooves 624 of the fixture 62, so that the fixture 62 is attached to the end cap portion 61. It is attached.

Then, the flange portion 631 is inserted into the space between the pair of support pieces 614 of the end cap portion 61 and the main body 610, so that the lid 63 is attached to the end cap portion 61. The lid 63 is prevented from coming off from the main body 610 by catching the claw portion 633 provided on the main body portion 630 on the recess 619 provided on the back surface of the main body 610 of the end cap portion 61. See FIG. 16).

Here, in a state where the lid 63 is attached to the end cap portion 61, the support plate 622 of the fixture 62 is sandwiched between the pair of support portions 632 of the lid 63 and the horizontal piece 613 of the main body 610 (FIG. 16). reference). As a result, the pair of support portions 632 restricts the vertical movement of the fixture 62, so that the protrusion 617 and the mating groove 624 cannot be disengaged.

The end member 6 assembled as described above is attached to both ends of the support member 21 and the cover 22 in the longitudinal direction one by one. Specifically, the front and rear end portions of the fixing plate 620 of the fixture 62 are inserted between the upper surface of the main portion 210 and the pair of protrusions 215. Further, a pair of projecting pieces 615 of the end cap portion 61 are inserted under the hooking portion 31 of the pair of side wall portions 211. That is, the pair of projecting pieces 615 of the end cap portion 61 is hooked on the hook portion 31 in the vertical direction. As a result, rattling of the end cap portion 61 with respect to the support member 21 is suppressed. Then, the fixing plate 620 is screwed to the main portion 210 of the support member 21 by the two screws inserted into the two screw insertion holes 623 of the fixing plate 620.

Further, the tubular portion 600 of the cover end portion 60 and the seal member 7 are inserted into the cover 22, and both ends of the support member 21 in the longitudinal direction are closed by the main body 610 of the end cap portion 61. The seal piece 71 of the seal member 7 inserted into the cover 22 closes the gap between the cover end portion 60 and the cover 22 by being in close contact with the inner side surfaces of the front wall 220 and the side wall portion 211 of the cover 22 (FIG. 16). reference).

Here, when the main body 70 of the seal member 7 is in close contact with the inner side surface of the front wall 220 and the side wall portion 211 of the cover 22, the cover 22 is between the seal member 7 and the cover 22 when the cover 22 expands and contracts due to the influence of heat. The frictional force may become too large and excessive stress may be generated on the cover 22.

However, by bringing the seal piece 71 of the seal member 7 into close contact with the inner side surface of the front wall 220 and the side wall portion 211 of the cover 22, the frictional force between the seal member 7 and the cover 22 becomes larger than necessary. Instead, the stress generated in the cover 22 can be suppressed.

Further, when the end member 6 is attached to the end portions of the support member 21 and the cover 22 in the longitudinal direction, the pair of holding pieces 605 of the cover end portion 60 are positioned so as to overlap the end portions of the substrate 200 of the light source module 20 in the vertical direction. (See FIG. 16). Therefore, when an external force is applied to the cover end portion 60, the pressing piece 605 presses the substrate 200, so that the cover end portion 60 can be prevented from falling into the cover 22.

As described above, the assembly of the light source unit 2 is completed by attaching one end member 6 to both ends of the support member 21 and the cover 22 in the longitudinal direction.

(2-7) Construction procedure of lighting equipment Next, the procedure of construction work for attaching the lighting equipment A1 to the ceiling will be described. The worker who performs the construction work inserts the power cable 80 pulled out into the room from the hole provided in the ceiling into the first electric wire hole 12 of the instrument main body 1. Further, the operator inserts the signal cable drawn into the room from the hole provided in the ceiling into the second electric wire hole 13. Then, the operator inserts two hanging bolts protruding downward from the ceiling into the two bolt insertion holes 14 of the instrument main body 1 one by one, tightens nuts to each hanging bolt, and attaches the instrument main body 1 to the ceiling. .. Further, the operator connects the power cable 80 to the power terminal block 15.

Subsequently, the operator hooks the tips of the two strings attached to the string attachment portions 232 of the two attachment bases 23 into the two hook holes 18 of the instrument main body 1, one by one, thereby mounting the light source unit 2. Temporarily hang it on the instrument body 1 with two strings. In this state, the operator connects the receptacle connector 55 of the power supply unit 5 to the plug connector 16 of the instrument main body 1. Further, the operator connects the signal line of the signal cable inserted into the second electric wire hole 13 of the instrument main body 1 to the signal terminal block 52.

Then, the operator approaches the fixture body 1 while supporting the light source unit 2 in the temporarily suspended state with both hands, and inserts the mounting spring 30 of the fixture body 1 between the pair of side wall portions 211 of the support member 21. At this time, the mounting spring 30 is securely inserted between the pair of side wall portions 211 by the tip of the side wall portion 211 hitting the guide piece 400 of the guide member 40. Therefore, it is possible to prevent the spring piece 300 of the mounting spring 30 from coming out to the outside of the side wall portion 211 and causing a defect such as plastic deformation due to an excessive force applied to the spring piece 300.

Further, the tip portions of the pair of spring pieces 300 of the mounting spring 30 are inclined inward (direction away from the hooking portion 31). Therefore, the operator can smoothly bend the tip portion of the spring piece 300 without causing it to be caught by the hooking portion 31, and finally hook the spring piece 300 to the hooking portion 31 reliably.

Further, since the deformation amount (deflection amount) of the spring piece 300 is limited by the limiting member 41, it is possible to prevent the occurrence of a defect such as plastic deformation due to an excessive force applied to the spring piece 300.

In the mounting spring 30 inserted between the pair of side wall portions 211, the tip portions of the pair of spring pieces 300 are hooked on the hooking portion 31 on the inner surface of each side wall portion 211 (see FIGS. 11 and 15). That is, the light source unit 2 is attached to the instrument main body 1 by the attachment member 3 including the two attachment springs 30 and the hook portion 31. If the operator pulls the light source unit 2 downward, the tip portion of the mounting spring 30 is disengaged from the hooking portion 31, so that the light source unit 2 can be removed from the instrument main body 1.

Here, as shown in FIG. 17, the light source unit 2 creates a slight gap between the longitudinal end portion of the cover 22 and the wall portion 601 of the cover end portion 60 of the end member 6. That is, while the power supply unit 5 operates and the light source module 20 is lit, the temperature of the cover 22 rises, and the cover 22 made of the synthetic resin molded body expands due to thermal expansion. If there is no gap between the end of the cover 22 and the wall 601 of the cover end 60, the end of the cover 22 extended by thermal expansion comes into contact with the wall 601 and the extension of the cover 22 is prevented. This may cause problems such as warping or deformation of the cover 22. However, in the light source unit 2, by providing a gap between the end portion of the cover 22 and the wall portion 601 of the cover end portion 60 as described above, the end portion of the cover 22 extended by thermal expansion becomes the wall portion 601. It becomes difficult to contact. As a result, the light source unit 2 and the luminaire A1 can suppress the occurrence of problems such as damage to the cover 22 due to the extension of the cover 22 due to thermal expansion.

Even when a slight gap is created between the longitudinal end of the cover 22 and the wall portion 601 of the cover end portion 60 of the end member 6, the boundary portion between the cover 22 and the support member 21 remains. It is closed by a pair of ribs 72 of the sealing member 7 (see FIG. 17). Therefore, it is possible to prevent foreign matter from entering the cover 22 through the gap between the boundary portion between the cover 22 and the support member 21.

By the way, a plurality of lighting fixtures A1 may be mounted on the ceiling so as to be lined up in a row without spacing. In this case, the lid 63 is removed from the main body 610 of the end cap portion 61, and the power cable 80 and the signal cable are sent and wired through the hole 611 of the end cap portion 61. Therefore, the operator may pull the lid 63 from the end cap portion 61 of the light source unit 2 to remove it before attaching it to the instrument main body 1, so that the workability of the wiring work can be improved.

(3) Features of the Embodiment One feature of the lighting fixture A1 according to the embodiment is that the fixture body 1 has a guide member 40. Since the guide member 40 guides the pair of side wall portions 211 in the direction away from the instrument main body 1 (outward) by hitting the tips of the pair of side wall portions 211, the spring piece 300 of the mounting spring 30 is outside the side wall portion 211. It is possible to prevent it from appearing in.

As a result, the lighting fixture A1 according to the embodiment can improve the workability of the work of attaching the light source unit 2 to the fixture main body 1.

Further, in the lighting fixture A1 according to the embodiment, the fixture body 1 has a limiting member 41 that limits the amount of deformation of the spring piece 300. However, in the lighting fixture A1 according to the embodiment, the amount of deformation (deflection amount) of the spring piece 300 is limited by the limiting member 41, so that a problem such as plastic deformation occurs due to an excessive force applied to the spring piece 300. Can be prevented.

Further, in the lighting fixture A1 according to the embodiment, the guide member 40 has a space in which the electric wire 17 can be wired. This space is a space sandwiched between a pair of guide pieces 400 arranged in the longitudinal direction of the instrument main body 1 along a pair of side plates 11 of the instrument main body 1 (see FIG. 9). Since the guide member 40 has the above space, the lighting fixture A1 according to the embodiment can effectively utilize the space of the fixture main body 1 to reduce the size of the fixture main body 1.

Further, in the lighting fixture A1 according to the embodiment, the fixture main body 1 has a holding member 42 for holding the electric wire 17 so as to avoid the bolt insertion hole 14 (see FIG. 9). The holding member 42 includes a pair of first holding pieces 421, a second holding piece 422, and a third holding piece 423. Since the holding member 42 holds the electric wire 17 so as to avoid the bolt insertion hole 14, the luminaire A1 according to the embodiment can prevent the coating (insulator) of the electric wire 17 from being damaged by the hanging bolt. can.

Further, in the lighting fixture A1 according to the embodiment, since the guide member 40, the limiting member 41, and the holding member 42 are integrally formed as one synthetic resin molded body (functional block 4) (see FIG. 8), the fixture main body. It is possible to improve the workability of the assembly work of 1. In the lighting fixture A1 according to the embodiment, a bushing portion 43 for protecting the signal cable from the edge of the second electric wire hole 13 is integrally formed with the functional block 4 (see FIG. 8). Therefore, the lighting fixture A1 according to the embodiment can further improve the workability of the assembling work of the fixture main body 1 as compared with the case where the bushing is fitted in the second electric wire hole 13.

(4) Modification Example A modification of the lighting fixture A1 according to the embodiment will be described with reference to FIGS. 18 and 19. However, the luminaire A2 of the modified example has the same configuration as the luminaire A1 except for the structure of the functional block 4. Therefore, in the luminaire A2 of the modified example, the components common to the luminaire A1 are designated by the same reference numerals, and the illustration and description thereof will be omitted as appropriate.

In the functional block 4 of the lighting fixture A2 of the modified example, the third holding piece 423 of the holding member 42 is formed in an L shape. Further, a pair of claws 44 are provided at the tip of the flange portion 431 of the bushing portion 43 and the upper end of the guide piece 400 of the guide member 40 (see FIG. 18). The functional block 4 is attached to the instrument main body 1 by hooking these claws 44 on the edge of the second electric wire hole 13 and the edge of the hook hole 102 of the bottom plate 10.

In the luminaire A2 of the modified example, similarly to the luminaire A1, the electric wire 17 can be held by the holding member 42 to prevent the coating of the electric wire 17 from being damaged.

(5) Summary The lighting fixtures (A1; A2) according to the first aspect of the present disclosure are for the long fixture main body (1), the long light source unit (2), and the fixture main body (1). It is provided with a mounting member (3) for detachably attaching the light source unit (2). The light source unit (2) has a long light source module (20) and a support member (21) that supports the light source module (20). The light source module (20) has a long substrate (200) and a plurality of light emitting elements (LED201) arranged on the surface of the substrate (200). The support member (21) is formed in the shape of a long plate and faces the back surface of the substrate (200) from the main portion (210) and the substrate (21) from a pair of side ends along the longitudinal direction of the main portion (210). It has a pair of side wall portions (211) that stand up on the back surface side of the 200). The fixture body (1) has a guide member (40) that guides the tips of each of the pair of side wall portions (211) in a direction away from the fixture body (1) when the light source unit (2) is attached.

Since the lighting fixture (A1; A2) according to the first aspect has the guide member (40), it can be reliably mounted by the mounting member (3), and the light source unit (2) with respect to the fixture main body (1). ) Can improve the workability of the installation work.

The luminaire (A1; A2) according to the second aspect of the present disclosure can be realized in combination with the first aspect. In the lighting fixture (A1; A2) according to the second aspect, the guide member (40) is one or more guide pieces (400) protruding from the fixture main body (1) along the inner side surface of the side wall portion (211). It is preferable to have.

In the lighting fixture (A1; A2) according to the second aspect, the side wall portion (211) is guided by the guide piece (400) included in the guide member (40), so that the guide member (40) should be miniaturized. Can be done.

The luminaire (A1; A2) according to the third aspect of the present disclosure can be realized in combination with the first or second aspect. In the lighting fixture (A1; A2) according to the third aspect, the mounting member (3) is a mounting spring (30) arranged on the fixture main body (1) and a part of the mounting spring (30). It is preferable to have a hooking portion (31) on which the hook is hooked. The hook portion (31) is preferably provided on the inner side surface of the side wall portion (211) in which the pair of side wall portions (211) face each other. The instrument body (1) preferably has a limiting member (41) that limits the amount of deformation of the mounting spring (30).

Since the amount of deformation of the mounting spring (30) is limited by the limiting member (41), the lighting fixture (A1; A2) according to the third aspect is plastically deformed by applying an excessive force to the mounting spring (30). It is possible to prevent the occurrence of such a problem.

The luminaire (A1; A2) according to the fourth aspect of the present disclosure can be realized in combination with any one of the first to third aspects. In the lighting fixture (A1; A2) according to the fourth aspect, it is preferable to include a power supply line (electric wire 17) for supplying power to the light source unit (2) from an external power source. The guide member (40) preferably has a space in which the power supply line can be wired.

The lighting fixture (A1; A2) according to the fourth aspect can effectively utilize the space of the fixture main body (1) to reduce the size of the fixture main body (1).

The lighting fixture (A1; A2) according to the fifth aspect of the present disclosure can be realized by a combination with any one of the first to fourth aspects. In the lighting fixture (A1; A2) according to the fifth aspect, it is preferable that the fixture main body (1) is provided with a bolt insertion hole (14) into which a hanging bolt is inserted. The instrument body (1) preferably has a holding member (42) that holds a power line (electric wire 17) for supplying power from an external power source to the light source unit (2) so as to avoid the bolt insertion hole (14). ..

In the lighting fixture (A1; A2) according to the fifth aspect, since the holding member (42) holds the power line so as to avoid the bolt insertion hole (14), the hanging bolt inserted into the bolt insertion hole (14). This can prevent the coating (insulator) of the power line from being damaged.

The luminaire (A1; A2) according to the sixth aspect of the present disclosure can be realized in combination with the third aspect. In the lighting fixture (A1; A2) according to the sixth aspect, it is preferable that the guide member (40) and the limiting member (41) are integrally formed as one synthetic resin molded body.

The lighting fixture (A1; A2) according to the sixth aspect can improve the workability of the assembling work of the fixture main body (1).

The luminaire (A1; A2) according to the seventh aspect of the present disclosure can be realized in combination with the fifth aspect. In the lighting fixture (A1; A2) according to the seventh aspect, it is preferable that the guide member (40) and the holding member (42) are integrally formed as one synthetic resin molded body.

The lighting fixture (A1; A2) according to the seventh aspect can improve the workability of the assembling work of the fixture main body (1).

The luminaire (A1; A2) according to the eighth aspect of the present disclosure can be realized in combination with the sixth aspect. In the lighting fixture (A1; A2) according to the eighth aspect, it is preferable that the guide member (40), the limiting member (41) and the holding member (42) are integrally formed as one synthetic resin molded body. ..

The lighting fixture (A1; A2) according to the eighth aspect can improve the workability of the assembling work of the fixture main body (1).

A1; A2 Lighting equipment 1 Equipment body 2 Light source unit 3 Mounting member 14 Bolt insertion hole 17 Electric wire (power line)
20 Light source module 21 Support member 30 Mounting spring 31 Hooking part 40 Guide member 41 Limiting member 42 Holding member 200 Board 201 LED (light emitting element)
210 Main part 211 Side wall part 400 Guide piece

Claims (8)

It is provided with a long fixture body, a long light source unit, and a mounting member that detachably attaches the light source unit to the fixture body.
The light source unit has a long light source module and a support member that supports the light source module.
The light source module has a long substrate and a plurality of light emitting elements arranged on the surface of the substrate.
The support member is formed in a long plate shape and has a main portion facing the back surface of the substrate and a pair of side walls standing up from a pair of side ends along the longitudinal direction of the main portion to the back surface side of the substrate. Has a part and
The fixture body has a guide member that guides the tips of the pair of side wall portions in a direction away from the fixture body when the light source unit is attached.
lighting equipment. The guide member has one or more guide pieces protruding from the instrument body along the inner surface of the side wall portion.
The lighting fixture according to claim 1. The mounting member has one or more mounting springs arranged on the instrument body and a hooking portion on which a part of the mounting spring is hooked.
The hooking portion is provided on the inner surface of the side wall portion where the pair of side wall portions face each other.
The instrument body has a limiting member that limits the amount of deformation of the mounting spring.
The lighting fixture according to claim 1 or 2. A power line for supplying power to the light source unit from an external power source is provided.
The guide member has a space in which the power line can be wired.
The lighting fixture according to any one of claims 1-3. The instrument body is provided with a bolt insertion hole through which a hanging bolt is inserted.
The instrument body has a holding member that holds a power line for supplying power from an external power source to the light source unit so as to avoid the bolt insertion hole.
The lighting fixture according to any one of claims 1-4. The guide member and the limiting member are integrally formed as one synthetic resin molded body.
The lighting fixture according to claim 3. The guide member and the holding member are integrally formed as one synthetic resin molded body.
The lighting fixture according to claim 5. The guide member, the limiting member, and the holding member are integrally formed as one synthetic resin molded body.
The lighting fixture according to claim 6.

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