JP6735499B2 - Light source unit and lighting equipment - Google Patents

Description

The present invention relates to a light source unit and a lighting fixture, and more particularly to a light source unit having a solid-state light source and a lighting fixture including the light source unit.

As a conventional example, there is a lighting fixture described in Patent Document 1. The luminaire described in Patent Document 1 includes a rectangular box-shaped main body, an LED arranged at a fixed position with respect to the main body, an LED mounting base provided on one surface of the main body so as to project the LED on the surface, And a translucent cover that covers the LED. The cover includes a cylindrical cover body and a circular cover end that closes openings at both ends in a direction along the axis of the cover body. A through window is formed in a part of the cover body over the entire length in the direction along the axis, and the cross section orthogonal to the direction along the axis is C-shaped. The cover body is formed with edge portions at both ends along the axis. These edge portions are fitted into the cover mounting grooves formed on both side surfaces of the LED mounting base over the entire length in the longitudinal direction. That is, the cover body is attached to the LED mounting base by sliding from the one end in the longitudinal direction to the other end in the longitudinal direction with respect to the LED mounting base.

JP, 2012-174552, A

However, when the cover main body is attached to the LED mounting base as in the lighting device described in Patent Document 1, in order to move the cover main body by substantially the same length as the entire length of the LED mounting base in the longitudinal direction, A work space more than twice the total length is required. Therefore, it is difficult to reduce the work space required for the assembling work and improve the workability of the assembling work with the configuration such as the lighting fixture described in Patent Document 1.

An object of the present invention is to provide a light source unit and a lighting fixture that can improve workability of assembly work.

A light source unit according to one aspect of the present invention includes a light source module and a mounting plate on which the light source module is mounted on the front surface. Further, the light source unit has a cover that is translucent and is attached to the front surface of the attachment plate so as to cover the light source module from the front. The cover has a main body that allows the light emitted from the light source module to pass therethrough, and a projecting piece that projects from the edge of the main body along the front surface of the mounting plate in a direction toward the light source module. On the front surface of the mounting plate, a hooking portion on which the protruding piece is hooked is provided. The hooking portion is configured to hook the protrusion along the direction in which the protrusion protrudes from the edge of the main body. The hooking portion is formed in a hook shape, and the protruding piece is inserted into a space formed between the hooking portion and the front surface of the mounting plate. Further, a tip portion of the hooking portion is bent in a direction away from the front surface. The tip portion of the projecting piece is formed so that its thickness decreases as it approaches the hooking portion.

A lighting fixture according to one aspect of the present invention includes the light source unit and a fixture body that supports the light source unit.

INDUSTRIAL APPLICABILITY The light source unit and the lighting fixture of the present invention have an effect that the workability of the assembling work can be improved.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the above lighting fixture. FIG. 3 is an exploded perspective view of the light source unit according to the embodiment of the present invention. FIG. 4 is a perspective view of the above light source unit as seen from above. FIG. 5 is a side view of a part of the light source module, cover body, and mounting plate of the above light source unit. FIG. 6 is a perspective view of a part of the above light source unit.

A light source unit and a lighting device according to an embodiment of the present invention will be described in detail with reference to the drawings. The lighting fixtures of the embodiments described below exemplify lighting fixtures that are attached to the ceiling so as to be embedded in holes provided in the ceiling. However, the lighting fixtures of the embodiments are lights that are directly attached to the ceiling. It may be a device. Further, in the following description, unless otherwise specified, the directions shown in FIG. 1 define the vertical, horizontal, and front-back directions of the light source unit and the lighting fixture. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to the design and the like within the scope not departing from the technical idea of the present invention.

The lighting fixture 1 of the present embodiment includes a light source unit 2 and a fixture body 10 as shown in FIGS. 1 and 2. The instrument main body 10 is fixed to, for example, a hanging bolt, and is attached to the ceiling so as to be embedded in a hole provided in the ceiling. The light source unit 2 is detachably attached to the instrument body 10.

The instrument main body 10 is formed in a rectangular box shape with an open lower surface by connecting a rectangular tubular frame body 11 and a rectangular flat plate-like base plate 12. The base plate 12 is provided with an insertion hole 120 through which a power supply line for power supply is inserted. The power supply line inserted through the insertion hole 120 is electrically connected to the terminal block 13 fixed to the lower surface of the base plate 12. In the terminal block 13, one end of an electric wire is connected to a connecting portion (not shown). Then, the other end of this electric wire is electrically connected to the power supply device 7 (see FIG. 4). Therefore, AC power is supplied to the power supply device 7 from the external power supply (commercial AC power supply or the like) via the terminal block 13. Further, the base plate 12 is provided with a plurality (three in the illustrated example) of bolt insertion holes 121 through which hanging bolts (not shown) are inserted and arranged in a line in the front-rear direction (see FIG. 2 ). Two so-called latches 14 are attached to each of the left and right sides of the frame body 11 at intervals in the front-rear direction (see FIG. 2 ). Then, as will be described later, the light source unit 2 is attached to the instrument body 10 by these four latches 14. Further, a hooking hole 110 formed of a square hole is provided on the side surface after the frame 11 (see FIG. 2).

As shown in FIGS. 2 and 3, the light source unit 2 has three light source modules 3, two reflecting members 4, and a mounting plate 6. Further, it is preferable that the light source unit 2 has three covers 5, a power supply device 7, and a hooking metal 8, as shown in FIG. 4.

The mounting plate 6 is formed in a rectangular shape by a metal plate such as a steel plate. A pair of supporting portions 62 are bent and raised from the left end and the right end of the mounting plate 6 (see FIG. 4 ). Each of the pair of supporting portions 62 has a vertical piece 620 and a horizontal piece 621. The vertical piece 620 has a rectangular plate shape, and rises upward from the left end edge and the right end edge of the mounting plate 6. The horizontal piece 621 has a rectangular plate shape and protrudes from the upper end of the vertical piece 620 so as to approach the mounting plate 6 substantially in parallel with the upper surface of the mounting plate 6. Further, the horizontal piece 621 has a pair of wide portions 622 that are wider than both ends and the center of the horizontal piece 621 in the longitudinal direction. Each of the pair of wide portions 622 is provided with a fixing hole 623 composed of a square hole. It should be noted that a total of four operation holes 63 are formed at the left and right ends of the mounting plate 6 at positions facing the pair of wide portions 622 of the pair of support portions 62, respectively. It is preferable that each of these four operation holes 63 be formed in a size that allows a human fist to be inserted therethrough.

The hook metal 8 projects rearward of the mounting plate 6 from the center of the upper surface of the mounting plate 6 in the left-right direction near the rear end (see FIG. 4 ). The rear end portion of the hook metal 8 is inserted into a hook hole 110 provided in (the frame body 11 of) the instrument body 10 and hooked to the edge of the hook hole 110.

The power supply device 7 has a power supply circuit configured by mounting electronic components on a printed wiring board, and a case 70 that houses the power supply circuit (see FIG. 4 ). The power supply circuit controls, for example, a step-up chopper circuit that steps up an AC voltage supplied via a power line, a step-down chopper circuit that steps down the output voltage (DC voltage) of the step-up chopper circuit, a step-up chopper circuit, and a step-down chopper circuit. It is preferably composed of a control circuit or the like. As shown in FIG. 4, the case 70 is formed of a metal plate material into a long box shape. The power supply device 7 is attached to the mounting plate 6 by screwing both ends of the case 70 in the longitudinal direction to the upper surface of the mounting plate 6 (see FIG. 4 ).

Since all three light source modules 3 have the same configuration, one light source module 3 will be described. As shown in FIG. 3, the light source module 3 has a long substrate 30, a plurality of solid-state light sources mounted on the front surface (lower surface) of the substrate 30, and a connector 32. Each of the plurality of solid light sources is a light emitting diode (LED) 31 that emits white light. The plurality of LEDs 31 are arranged and mounted on the lower surface of the substrate 30 so as to be arranged in two rows at equal intervals along the longitudinal direction (horizontal direction) of the substrate 30. A connector 32 is mounted on the left end of the bottom surface of the board 30. The connector 32 is electrically connected to each of the plurality of LEDs 31 via a conductor (copper foil) formed on the lower surface of the substrate 30. The connector 32 is removably connected to a plug provided at the tip of the electric wire. The electric wire is electrically connected to the power supply device 7, and supplies the direct current output from the power supply device 7 to the light source module 3.

Each of the three light source modules 3 is attached to the lower surface of the mounting plate 6 in a state where the longitudinal direction of the substrate 30 is aligned with the left-right direction of the mounting plate 6 and arranged in the front-back direction of the mounting plate 6 at equal intervals. 3). More specifically, the substrate 30 has a plurality of (six) mounting holes 33 penetrating in the thickness direction (vertical direction). Three of the six mounting holes 33 are arranged at the front end of the substrate 30 so as to be arranged at equal intervals along the longitudinal direction (left-right direction) of the substrate 30. Further, the remaining three attachment holes 33 of the six attachment holes 33 are arranged at the rear end of the substrate 30 so as to be arranged at equal intervals along the longitudinal direction (left-right direction) of the substrate 30. It should be noted that these six mounting holes 33 are square holes and are provided so that the longitudinal direction thereof coincides with the longitudinal direction of the substrate 30 (see FIG. 3 ). A plurality of mounting portions 60 provided on the mounting plate 6 are inserted into each of these mounting holes 33 one by one. Each of the plurality of mounting portions 60 is formed by cutting and raising the mounting plate 6 in a hook shape. The board 30 is moved in the longitudinal direction (of the board 30) (left-right direction) in a state where one mounting portion 60 is inserted into each of the six mounting holes 33, so that each of the plurality of mounting portions 60 is moved. It is attached to the mounting plate 6 by being sandwiched between the mounting plate 6 and the mounting plate 6 (see FIGS. 3 and 5).

Since all the three covers 5 have the same configuration, only one cover 5 will be described. As shown in FIG. 3, the cover 5 has a cover body 50 and two cover ends 51. Further, the cover main body 50 has a main body portion 500 and a pair of projecting pieces 501. The main body 500 is formed in a substantially semi-cylindrical shape. Each of the pair of protrusions 501 is formed in a rectangular plate shape. In addition, the pair of projecting pieces 501 respectively protrude from the front end and the rear end of the main body portion 500 so as to approach each other. It is preferable that the length of each of the pair of protrusions 501 in the longitudinal direction (left-right direction) is substantially equal to the length of the main body portion 500 in the longitudinal direction. The main body 500 and the pair of projecting pieces 501 are preferably integrally formed as a molded body of synthetic resin having translucency and elasticity such as acrylic resin or polycarbonate resin. Since the main body portion 500 is formed of a synthetic resin molded body, it can be bent in a direction in which the pair of projecting pieces 501 are separated from each other. Further, it is preferable that the tip portions of the pair of protrusions 501 be formed so that the thickness thereof becomes smaller toward the tips (see FIG. 5 ).

Each of the pair of protrusions 501 of the cover body 50 is hooked on a corresponding hooking portion 61 among a plurality of hooking portions 61 (12 in the illustrated example) provided on the mounting plate 6 (see FIGS. 3 and 5). ). Each of the plurality of hook portions 61 is formed in a hook shape. Further, half (six) of the twelve hook portions 61 are arranged in front of the light source module 3 so as to be arranged in a row along the longitudinal direction (left-right direction) of the light source module 3. Has been done. Further, the remaining half (6) of the 12 hook portions 61 are arranged in a row behind the light source module 3 along the longitudinal direction (left-right direction) of the light source module 3. It is arranged (see FIGS. 3 and 5). Each of these twelve hooks 61 forms a space with the lower surface of the mounting plate 6 (see FIG. 5). The protrusion 501 on the front side of the cover body 50 is inserted into the space formed between each of the six hook portions 61 arranged in front of the light source module 3 and the lower surface of the mounting plate 6. Further, the protrusion 501 on the rear side of the cover body 50 is inserted into the space formed between each of the six hook portions 61 arranged on the rear side of the light source module 3 and the lower surface of the mounting plate 6. .. In this way, the cover body 50 is attached to (the lower surface of) the attachment plate 6 by hooking each of the pair of protrusions 501 on the six hook portions 61 (see FIGS. 3 and 5 ). In addition, it is preferable that the tip portion of the hook portion 61 is bent and bent in a direction (downward) away from the lower surface of the mounting plate 6 (see FIG. 5 ). If the tip portion of the hook portion 61 is bent and raised downward in this manner, the protrusion 501 can be easily inserted into the space between the hook portion 61 and the lower surface of the mounting plate 6. Further, it is preferable that the tip portion of the hook portion 61 is formed so that the width (length in the left-right direction) becomes narrower toward the tip (see FIG. 3 ). If the tip portion of the hook portion 61 is formed so that the width thereof becomes narrower toward the tip, the protrusion 501 becomes easier to be inserted into the space between the hook portion 61 and the lower surface of the mounting plate 6.

The cover end 51 is composed of a molded body of a synthetic resin having translucency and elasticity such as acrylic resin or polycarbonate resin, and has a main wall portion 510, a pair of base portions 511, a peripheral wall portion 512, a pair of mounting claws 513 and a pair. The pressing portion 514 is integrally formed (see FIG. 3). The main wall portion 510 is formed in a substantially semicircular shape. Each of the pair of base parts 511 is formed in a rectangular plate shape. Each of the pair of base portions 511 projects from the upper end of the main wall portion 510 along the thickness direction (left-right direction) of the main wall portion 510. The pair of base portions 511 are arranged at the front and rear ends of the upper end of the main wall portion 510 with a distance. The peripheral wall portion 512 projects along the peripheral edge of the main wall portion 510 on the same side as the base portion 511, and is formed in a curved plate shape (see FIG. 3 ). Each of the pair of mounting claws 513 is formed in a hook shape. Further, each of the pair of mounting claws 513 faces the upper surface of the corresponding base portion 511 of the pair of base portions 511, and forms a gap between the upper surface of the corresponding base portion 511. Each of the pair of pressing parts 514 is formed in a strip shape. In addition, each of the pair of pressing portions 514 projects from the lower surface of the corresponding base portion 511 in the thickness direction (horizontal direction) of the main wall portion 510.

The cover end 51 is attached to the attachment plate 6 by a pair of attachment claws 513. More specifically, the cover end 51 is attached to the mounting plate 6 by inserting the mounting plate 6 into the gap between each of the pair of mounting claws 513 and the corresponding upper surface of the base portion 511 (FIG. 3 and FIG. 4). However, the mounting plate 6 is formed with a plurality of notch grooves 64 extending in the left-right direction at the place where the cover end 51 is mounted (see FIG. 3 ). That is, a part of the pair of mounting claws 513 of the cover end 51 is inserted into these cutout grooves 64. Each peripheral wall portion 512 of one cover end 51 is engaged with the end portion of the cover body 50 in the longitudinal direction (left-right direction) (see FIG. 3 ).

Each of the two reflecting members 4 is arranged in a corresponding space of the two spaces generated between the three adjacent light source modules 3 on the lower surface of the mounting plate 6 (see FIGS. 1 to 3 ). Each of the two reflecting members 4 has a reflecting plate 40 and a plurality of (four in the illustrated example) protrusions 41. Further, each of the two reflecting members 4 preferably has a pair of side plates 42. The reflection plate 40 is configured by bending the center of the strip-shaped metal plate in the lateral direction into a V shape along the longitudinal direction of the metal plate. Each of the pair of side plates 42 is formed in a rectangular plate shape having a narrow width (width along the vertical direction), and protrudes upward from the upper ends of the front and rear sides of the reflection plate 40 (see FIG. 3 ). Each of the four protrusions 41 is formed in a rectangular plate shape having a width wider than that of the side plate 42 and a shorter dimension in the longitudinal direction (left-right direction). Two of the four protrusions 41 protrude upward from the left and right ends near the front upper end of the reflection plate 40. The remaining two projections 41 of the four projections 41 project upward from near the left and right ends at the rear upper end of the reflection plate 40, respectively. The reflector 40, the four protrusions 41, and the pair of side plates 42 are preferably integrally formed by processing a metal plate. Further, at least the surfaces (reflection surfaces) of the reflection plate 40 and the pair of side plates 42 are preferably coated with white paint or the like.

Each of the four protrusions 41 has a first hooking hole 410 and a second hooking hole 411 (see FIGS. 3, 4, and 6). The first hooking hole 410 is a square hole whose width in the left-right direction is wider than width in the up-down direction. The second hooking hole 411 is a square hole whose width in the left-right direction is narrower than that in the up-down direction. The first hooking holes 410 and the second hooking holes 411 are arranged side by side in the left-right direction. Each of these four protrusions 41 is inserted into an insertion hole 65 provided in one-to-one correspondence with the four protrusions 41 (see FIGS. 3 and 4).

On the other hand, the mounting plate 6 has a plurality of (eight in the illustrated example) insertion holes 65 and a plurality of (eight in the illustrated example) fixing portions 66 that correspond to the plurality of insertion holes 65 in a one-to-one relationship. (See FIGS. 4 and 6). Each of the eight insertion holes 65 is a rectangular hole whose width in the left-right direction is wider than its width in the front-rear direction, and penetrates the mounting plate 6 in the thickness direction (vertical direction). The eight insertion holes 65 are arranged in four rows along the front-rear direction and in two rows along the left-right direction (see FIG. 4 ). Each of the eight fixing portions 66 is formed by being cut and raised upward from the mounting plate 6 (see FIG. 6 ). That is, each of the eight insertion holes 65 is a hole formed after the corresponding fixing portion 66 is cut and raised. Each of the eight fixing portions 66 has a first fixing claw 660 and a second fixing claw 661. The first fixed claw 660 is formed in a trapezoidal shape (see FIG. 6). The first fixing claw 660 projects from the upper end of the fixing portion 66 in parallel with the upper surface of the mounting plate 6. The second fixed claw 661 is formed in a triangular shape (see FIG. 6). The second fixing claw 661 projects perpendicularly to the upper surface of the mounting plate 6 from the side surface of the fixing portion 66.

When the protrusion 41 is inserted into the insertion hole 65 from the lower surface side of the mounting plate 6, the fixing portion 66 is pushed by the protrusion 41 and bent, and then the first fixing claw 660 is inserted into the first hooking hole of the protrusion 41. The second fixing claw 661 is inserted into the second hooking hole 411 of the protrusion 41. Then, the first fixing claw 660 is caught on the edge of the first hooking hole 410, and the second fixing claw 661 is caught on the edge of the second hooking hole 411, whereby the protrusion 41 is fixed to the fixing portion 66 (FIG. 4). And FIG. 6). However, the protrusion 41 and the fixing portion 66 may be fixed by a method such as screw tightening.

Next, a procedure for assembling the light source unit 2 of this embodiment will be described. An operator who performs the assembly work attaches the three light source modules 3 to the lower surface of the attachment plate 6, respectively. That is, the worker inserts the corresponding mounting portions 60 into the six mounting holes 33 of the substrate 30 one by one, and then moves the substrate 30 in the longitudinal direction so that each of the six mounting portions 60 can be removed. The light source module 3 is attached to the attachment plate 6 by sandwiching the substrate 30 between the attachment plates 6. Then, the worker inserts the electric wire into the insertion hole 67 provided in the mounting plate 6, and inserts the plug provided at the tip of the electric wire into the connector 32 of the light source module 3 to connect the plug. Here, the operator closes the insertion hole 67, through which the electric wire is inserted, with the lid 20. The lid 20 is formed in a rectangular sheet shape from a material having elasticity such as urethane rubber. Further, the lid 20 is provided with a notch 200. The operator closes the insertion hole 67 by attaching the lid 20 to the lower surface of the mounting plate 6 with the electric wire inserted through the insertion hole 67 being sandwiched between the cuts 200.

Subsequently, the worker attaches the cover end 51 to the attachment plate 6. When the cover end 51 is attached to the mounting plate 6, the tip ends of the pair of base portions 511 of the cover end 51 hit the end faces (end faces at both ends in the longitudinal direction) of the substrate 30 of the light source module 3 (see FIG. 3 ). Therefore, the movement of the light source module 3 (the substrate 30 thereof) in the longitudinal direction is restricted by the pair of cover ends 51. Therefore, the mounting portion 60 of the mounting plate 6 is prevented from coming off from the mounting hole 33 of the substrate 30. Then, the operator hooks one of the projecting pieces 501 on the six hooking portions 61 arranged in a row behind the light source module 3 and then bends the cover body 50 while keeping the other projecting piece 501 on the light source module. It is hooked on the six hooking portions 61 arranged in a line in front of 3. More specifically, the operator pushes the cover main body 50 by pushing the substantially central portion of the main body portion 500 of the cover main body 50 toward the lower surface of the mounting plate 6 (upward), as shown by a solid arrow in FIG. Bend (see dashed line in FIG. 5). While bending the cover body 50, the operator rides the other protrusion 501 over the six hooks 61 arranged in a row in front of the light source module 3, and the other protrusion 501 is attached to the lower surface of the mounting plate 6. Hit Then, when the worker stops pushing the main body portion 500 of the cover main body 50, the cover main body 50 returns to the original state (shape), and the other protruding pieces 501 are arranged in a row in front of the light source module 3. The six hooks 61 are hooked. In this way, the worker attaches each of the three cover bodies 50 to the lower surface of the attachment plate 6.

Subsequently, the operator pushes the reflection plate 40 in the front-rear direction after inserting the four protrusions 41 of the reflection member 4 into the corresponding insertion holes 65 while pushing the reflection plate 40 in the front-rear direction to bend the reflection plate 40. Stop. When the reflection plate 40 returns from the bent state to the original state, the first fixing claws 660 of the fixing portion 66 are inserted into the respective first hooking holes 410 of the four protrusions 41, and the first protrusions 660 of the four protrusions 41 are inserted. The second fixing claw 661 of the fixing portion 66 is inserted into the second hooking hole 411. Then, the first fixing claw 660 is hooked on the edge of the first hooking hole 410 and the second fixing hook 661 is hooked on the edge of the second hooking hole 411, so that the protrusion 41 is fixed to the fixing portion 66. In this way, each of the two reflection members 4 is attached to the lower surface of the attachment plate 6. The worker can assemble the light source unit 2 as described above. However, the above-described assembly procedure is merely an example, and the reflection member 4 may be attached to the attachment plate 6 before the light source module 3 and the cover 5, for example. Alternatively, the cover body 50 may be attached to the attachment plate 6 before the cover end 51.

Next, the construction procedure of the lighting fixture 1 of this embodiment will be described. A builder who carries out the construction work pulls in the power source wire from the insertion hole 120 of the base plate 12, inserts the instrument body 10 into the embedding hole provided in the ceiling, and inserts it into the bolt insertion hole 121 of the base plate 12. Tighten the nuts to the hanging bolts and attach the instrument body 10 to the hanging bolts. Further, the builder electrically connects the power line drawn from the insertion hole 120 to the terminal block 13.

Subsequently, the builder removes the two reflecting members 4 from the mounting plate 6, inserts the hooking metal 8 into the hooking hole 110 of the frame 11, and hooks the hooking metal 8 on the edge of the hooking hole 110. The light source unit 2 is hung on the instrument body 10. In this state, the builder electrically connects the electric wire drawn from the terminal block 13 to the power supply device 7. After that, the builder lifts the light source unit 2 and stores it in the instrument body 10. At this time, the builder inserts the knobs of the latch 14 into the respective fixing holes 623 of the four support portions 62 of the mounting plate 6. Then, the builder puts his/her hand into the operation hole 63 of the mounting plate 6 and rotates the knobs of the four latches 90 by 90 degrees. As a result, (the mounting plate 6 of) the light source unit 2 is supported by the instrument body 10 by the four latches 14. Finally, the builder attaches the two reflecting members 4 to the attachment plate 6, respectively. As described above, the construction work of the lighting fixture 1 of this embodiment is completed.

Here, in the cover main body 50 of the light source unit 2 of the present embodiment, the protruding piece 501 protruding from the edge of the main body 500 is hooked on the hooking portion 61 of the mounting plate 6 along the protruding direction (front-back direction). It is configured. That is, in the light source unit 2 of the present embodiment, the cover body 50 can be attached to the lower surface of the attachment plate 6 in the thickness direction (vertical direction) of the attachment plate 6 as described above. Therefore, the light source unit 2 of the present embodiment does not need to move (slide) the cover body 50 over the entire length in the longitudinal direction at the time of attachment to the attachment plate 6, unlike the conventional example described in Patent Document 1. Therefore, in the light source unit 2 of the present embodiment, the work space required for the assembly work can be reduced and the workability of the assembly work can be improved.

In addition, in the light source unit 2 of the present embodiment, a plurality of hook portions 61 are arranged in a line on the lower surface of the mounting plate 6 at intervals. For example, when the projecting piece 501 and the hooking portion are configured to be hooked to each other over the entire length of the projecting piece 501 in the longitudinal direction, when the projecting piece 501 (cover body 50) expands as the temperature rises, the projecting piece 501. If it hits the hooking part, it may make a strange noise. On the other hand, in the light source unit 2 of the present embodiment, the protrusions 501 are hooked on the plurality of hooking portions 61 arranged in a line at intervals, thereby narrowing the range in which the extended protrusions 501 hit the hooking portions 61, thereby making it different. The generation of sound can be suppressed.

As described above, the light source unit 2 of the present embodiment has the light source module 3 and the mounting plate 6 to which the light source module 3 is mounted on the front surface (lower surface). Further, the light source unit 2 of the present embodiment has a light-transmitting property and has a cover (cover body 50) attached to the lower surface of the attachment plate 6 so as to cover the light source module 3 from the front (lower side). ing. The cover main body 50 has a main body 500 that allows the light emitted from the light source module 3 to pass therethrough, and a protrusion 501 that projects from the edge of the main body 500 along the lower surface of the mounting plate 6 toward the light source module 3. ing. On the lower surface of the mounting plate 6, a hook portion 61 on which the protrusion 501 is hooked is provided. The hook portion 61 is configured to hook the projecting piece 501 along the direction (front-rear direction) in which the projecting piece 501 projects from the edge of the main body section 500.

As described above, the lighting fixture 1 of the present embodiment includes the light source unit 2 and the fixture body 10 that supports the light source unit 2.

If the light source unit 2 of the present embodiment is configured as described above, it is not necessary to move the cover main body 50 over the entire length in the longitudinal direction at the time of mounting it on the mounting plate 6, so that a working space required for assembly work is provided. The workability of the assembling work can be improved by reducing the amount. Further, the lighting fixture 1 of the present embodiment can improve the workability of the assembling work as the workability of the assembling work of the light source unit 2 is improved.

Further, in the light source unit 2 of the present embodiment, it is preferable that the main body portion 500 is formed so as to be able to bend in the direction in which the protruding piece 501 is moved away from the hook portion 61.

If the light source unit 2 of the present embodiment is configured as described above, the projecting piece 501 can be easily hooked on the hook portion 61 by bending the main body portion 500.

Furthermore, in the light source unit 2 of this embodiment, the hook portion 61 is preferably formed in a hook shape. The hook portion 61 is preferably configured such that the protrusion is inserted into a space formed between the hook portion 61 and the lower surface of the mounting plate 6. It is preferable that the tip portion of the hook portion 61 is bent in a direction (downward) away from the lower surface (of the mounting plate 6).

If the light source unit 2 of this embodiment is configured as described above, it becomes easy to insert the projecting piece 501 into the space between the hook portion 61 and the lower surface of the mounting plate 6.

In addition, in the light source unit 2 of the present embodiment, it is preferable that the tip portion of the protruding piece 501 is formed so that the thickness becomes smaller as it approaches the hook portion 61.

If the light source unit 2 of this embodiment is configured as described above, it becomes easy to insert the projecting piece 501 into the space between the hook portion 61 and the lower surface of the mounting plate 6.

Further, in the light source unit 2 of the present embodiment, it is preferable that the hook portion 61 be formed so that the width thereof becomes narrower toward the tip.

If the light source unit 2 of the present embodiment is configured as described above, it becomes easier to insert the protruding piece 501 into the space between the hook portion 61 and the lower surface of the mounting plate 6.

In addition, in the light source unit 2 of the present embodiment, it is preferable that a plurality of hook portions 61 are formed on the lower surface of the mounting plate 6 so as to be arranged in a line at intervals.

If the light source unit 2 of the present embodiment is configured as described above, it is possible to reduce the range in which the protruding piece 501 that has expanded with the temperature rise hits the hook portion 61, and suppress the generation of abnormal noise.

1 Lighting Fixture 2 Light Source Unit 3 Light Source Module 6 Mounting Plate 10 Fixture Main Body 50 Cover Main Body (Cover)
61 Hook part 500 Main body part 501 Projection piece

Claims (5)

A light source module, a mounting plate to which the light source module is mounted on the front surface, and a light-transmitting cover which is mounted on the front surface of the mounting plate so as to cover the light source module from the front,
The cover has a main body that allows the light emitted from the light source module to pass therethrough, and a projecting piece that projects from the edge of the main body along the front surface of the mounting plate in a direction toward the light source module.
On the front surface of the mounting plate, a hooking portion on which the protruding piece is hooked is provided, and the hooking portion hooks the protruding piece along a direction in which the protruding piece protrudes from an edge of the main body portion. Is configured ,
The hooking portion is formed in a hook shape, and is configured such that the protruding piece is inserted into a space formed between the hooking portion and the front surface of the mounting plate, and a tip portion of the hooking portion is separated from the front surface. Bent in the direction,
The light source unit , wherein the tip end portion of the projecting piece is formed so that the thickness thereof becomes smaller as it approaches the hooking portion . The light source unit according to claim 1, wherein the main body portion is formed so as to be able to bend in a direction in which the protrusion is moved away from the hook portion. The light source unit according to claim 1 or 2, wherein the hooking portion is formed so that the width thereof becomes narrower toward the tip . The light source unit according to any one of claims 1 to 3, wherein a plurality of the hooking portions are formed on the front surface of the mounting plate so as to be arranged in a line at intervals . A lighting fixture comprising: the light source unit according to claim 1; and a fixture main body that supports the light source unit .

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