JP2016042434A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which achieves improvement of the workability when feed wiring of a power cable is installed.SOLUTION: A lighting device 10 includes: a device body 1 attached to a lower surface of a ceiling board 100; a light source unit 2 attached to the device body 1; and a first terminal board 13 which is attached to the device body 1 and with which a first power cable 4 from an exterior part is connected. The device body 1 has a recessed part 11 which is provided at the opposite side of the ceiling board 100 in a normal direction of a lower surface of the ceiling board 100 and houses the light source unit 2. Further, in the device body 1, a space for passing a second power cable for connecting a second terminal board of another lighting device located adjacent to the lighting device with the first terminal board 13, is provided at the outer side of the recessed part 11.SELECTED DRAWING: Figure 1

Description

  The present invention generally relates to a lighting fixture, and more particularly to a lighting fixture that is directly attached to a construction surface such as a ceiling.

  2. Description of the Related Art Conventionally, lighting fixtures that are directly attached to a construction surface such as a ceiling have been provided (see, for example, Patent Document 1). The lighting fixture described in Patent Literature 1 includes a fixture body formed in a rectangular parallelepiped shape, a pair of lamp sockets projecting downward from the fixture body, and a fluorescent lamp attached to the fixture body via the pair of lamp sockets And a lighting device for supplying power to the fluorescent lamp. The lighting device is housed inside the fixture body, connected to an external power cable, and connected to each lamp socket by an electric wire.

JP 2006-114363 A

  When the lighting fixtures shown in Patent Document 1 are installed side by side in the longitudinal direction, an operator connects an external power cable to the lighting device of one lighting fixture and uses another power cable. The lighting device of the other lighting fixture is wired to the lighting device of the other lighting fixture. At this time, the worker sends and wires the power cable through the inside of the instrument body. However, since the lighting device is housed inside the instrument body, there is a problem that it is difficult to work.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture with improved workability when a power cable is fed and wired.

  The lighting fixture of the present invention includes a fixture main body attached to a construction surface, a light source unit attached to the fixture main body, and a first terminal block attached to the fixture main body and connected to a first power cable from the outside. The fixture body has a recess provided on the opposite side of the construction surface in the normal direction of the construction surface and containing the light source unit, and is arranged next to the second terminal of another lighting fixture. A space for passing a second power cable connecting between the base and the first terminal base is provided outside the recess.

  According to the structure of this invention, there exists an effect that the lighting fixture which improved workability | operativity at the time of sending and wiring a power supply cable can be provided.

It is a disassembled perspective view of the lighting fixture which concerns on embodiment of this invention. It is a whole perspective view of the lighting fixture which concerns on embodiment of this invention. It is sectional drawing of the lighting fixture which concerns on embodiment of this invention. It is explanatory drawing explaining the construction procedure of the lighting fixture which concerns on embodiment of this invention.

  A lighting apparatus 10 according to an embodiment of the present invention will be specifically described with reference to FIGS. However, the configuration described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and the technical idea according to the present invention is not deviated from other embodiments. Within the range, various changes can be made according to the design and the like.

  In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the orientation shown in FIG. 3, and the direction perpendicular to the paper surface in FIG. 3 is defined as the front-rear direction (the front side is the front side). Therefore, in the present embodiment, the longitudinal direction of the instrument body 1 is the front-rear direction, the short direction (width direction) of the instrument body 1 is the left-right direction, and the height direction of the instrument body 1 is the up-down direction. However, these directions do not define the mounting direction of the lighting fixture 10.

  The lighting fixture 10 of the present embodiment is a ceiling-mounted lighting fixture as shown in FIG. 1, and the fixture main body 1 is attached to the lower surface (construction surface) of the ceiling plate 100 using a suspension bolt 200 and a nut 201. And a light source unit 2 detachably attached to the instrument body 1.

  The instrument body 1 is formed into a flat box shape that is long in the front-rear direction and has an upper surface opened by bending a sheet metal. On the opposite side (lower side) of the ceiling plate 100 in the vertical direction of the instrument body 1, a recess 11 for accommodating the light source unit 2 is provided over the entire length of the instrument body 1. Further, on both sides in the left-right direction of the recess 11, there are provided inclined portions 12, 12 that extend from the opening edge of the recess 11 and incline upward toward the outside (see FIG. 3).

  The concave portion 11 is formed in a rectangular shape by a bottom wall portion 111 formed in a rectangular plate shape that is long in the front-rear direction and a pair of side wall portions 112, 112 protruding upward from both ends in the left-right direction of the bottom wall portion 111. Yes. A plurality of holes 1111 (two in FIG. 1) for passing electric wires are provided in the bottom wall portion 111 along the front-rear direction, and the holes 1112 for passing the suspension bolts 200 are located at positions near both ends in the front-rear direction. One each is provided.

  A first terminal block 13 to which the first power cable 4 exposed to the indoor side through the ceiling plate 100 is connected is attached to the bottom wall portion 111. The first terminal block 13 has a main body 131 formed in a rectangular box shape, and an electric wire 133 having a female connector 132 is connected to the main body 131.

  Furthermore, the right side wall 112 of the recess 11 is provided with holes 1121 and 1121 to be hooked with hooks 41 and 41, which will be described later, at positions near both ends in the front-rear direction. In addition, hook metal fittings 43 and 43 to which hook springs 42 and 42 to be described later are hooked are attached to the left side wall portion 112 of the concave portion 11 at positions near both ends in the front-rear direction, respectively.

  Further, in the recess 11, an opening 1122 (only one opening 1122 is shown in FIG. 1) formed so as to extend from each side wall 112 to the bottom wall 111 is attached to the bottom wall 111. Each is provided in the vicinity of the terminal block 13. That is, in this embodiment, the space 121 (see FIG. 3) surrounded by the side wall 112 of the recess 11 and the inclined portion 12 continuous from the side wall 112 and the recess 11 are connected by the opening 1122.

  As shown in FIGS. 1 and 2, end covers 3 are attached to both end portions in the front-rear direction of the instrument body 1 described above. Each end cover 3 is formed to have substantially the same outer shape as the cross-sectional shape in the front-rear direction of the instrument body 1 and is attached so as to close the openings at both ends in the front-rear direction of the instrument body 1. Each end cover 3 has knockout holes 31, 31 at positions near both ends in the left-right direction. By opening these knockout holes 31, 31, the second power cable 6 passing through the space 121 is provided. Can be pulled out.

  As shown in FIGS. 1 and 3, the light source unit 2 includes an LED module 22, an attachment member 21 to which the LED module 22 is attached, and a cover 23 that is attached to the attachment member 21 so as to cover the LED module 22. . The light source unit 2 includes a power supply device 24 that supplies power to the LED module 22 and a terminal block 25 to which the signal cable 5 exposed to the indoor side through the ceiling plate 100 is connected.

  The LED module 22 includes a substrate 221 formed in a rectangular plate shape that is long in the front-rear direction. A plurality of LEDs (light emitting diodes) 222 are mounted on the lower surface of the substrate 221 along the front-rear direction (longitudinal direction). A connector (not shown) for electrically connecting the power supply device 24 is mounted on the front end portion of the substrate 221. An electric wire (not shown) is connected to this connector, and the LED module 22 and the power supply device 24 are electrically connected by connecting the end of the electric wire to the power supply device 24.

  The mounting member 21 is formed into a U shape by bending a sheet metal, and a bottom surface portion 211 formed in a rectangular plate shape that is long in the front-rear direction, and upward from both ends in the left-right direction (width direction) of the bottom surface portion 211. It consists of a pair of protruding side surface portions 212 and 212. A hook portion 2121 formed by bending in a circular shape is provided at the tip of each side surface portion 212 over the entire length (see FIG. 3).

  In addition, hook springs 42 and 42 that are respectively hooked on the hook metal fittings 43 and 43 of the instrument main body 1 are provided at positions near both ends in the front-rear direction at the left end portion of the bottom surface portion 211. Furthermore, hook pieces 41, 41 that are respectively hooked in the holes 1121, 1121 of the instrument body 1 are provided at positions near the both ends in the front-rear direction at the right end portion of the bottom surface portion 211.

  The cover 23 is made of a diffusible material (for example, milky white acrylic resin), and is formed in a box shape that is long in the front-rear direction and has an upper surface (surface on the mounting member 21 side) opened (see FIGS. 1 and 2). ). In addition, the cover 23 has a curved surface portion 231 having a convex lens shape in which the amount of downward protrusion increases as it approaches the center portion from both ends in the left-right direction (width direction) (see FIG. 3).

  At both ends in the left-right direction of the cover 23, as shown in FIG. 3, with the light source unit 2 attached to the instrument main body 1, an extension 232 that overlaps the opening edge of the recess 11 in the instrument main body 1 in the vertical direction. Are provided. Further, projecting wall portions 233 projecting upward (on the attachment member 21 side) are provided on the inner sides of the extending portions 232 in the left-right direction of the cover 23, respectively, and the tip ends of the respective projecting wall portions 233. Each has a protrusion 2331 protruding inward.

  The power supply device 24 includes a case 241 formed in a rectangular box shape that is long in the front-rear direction. Inside the case 241 is housed a board (not shown) on which electronic components constituting a power supply circuit for generating power supply to the LEDs 222 are mounted. An electric wire 243 having a male connector 242 is connected to the input side of the power supply device 24. The connector 242 may be mounted on the substrate.

  Next, the assembly procedure of the light source unit 2 will be described. First, the worker attaches the power supply device 24 to the upper surface side of the attachment member 21 and attaches the LED module 22 to the lower surface of the bottom surface portion 211 of the attachment member 21 so that the LED 222 faces downward. At this time, the worker fixes the LED module 22 to the bottom surface portion 211 of the mounting member 21 using, for example, a claw (not shown) formed by cutting and raising a part of the bottom surface portion 211 of the mounting member 21. .

  Further, the worker connects an electric wire (not shown) led out from a connector (not shown) mounted on the substrate 221 of the LED module 22 to the power supply device 24. Finally, the operator attaches the cover 23 to the attachment member 21 with the opening side facing upward. At this time, the projections 2331 of the respective protruding wall portions 233 of the cover 23 are hooked on the hooking portions 2121 of the corresponding side surface portions 212 of the mounting member 21, so that the cover 23 is attached to the mounting member 21. The light source unit 2 is assembled according to the above procedure.

  Then, the construction procedure of the lighting fixture 10 is demonstrated. In the following description, it is assumed that the first terminal block 13 is attached to the instrument body 1 in advance.

  First, the operator passes the first power cable 4 and the signal cable 5 (see FIG. 1) exposed to the room side through the ceiling board 100 through the holes 1111 and 1111 of the appliance body 1 and the room through the ceiling board 100. The suspension bolt 200 exposed to the inside is passed through the hole 1112. Furthermore, after passing the washer 202 through each suspension bolt 200, the operator screws the nut 201 into the suspension bolt 200 to fix the instrument body 1 to the lower surface of the ceiling plate 100.

  Thereafter, the operator connects the end of the first power cable 4 to the first terminal block 13 and hooks each hooking piece 41 of the light source unit 2 into the corresponding hole 1121 of the instrument main body 1 to place the light source unit 2. The instrument body 1 is temporarily held. Next, the worker connects the connector 132 of the first terminal block 13 and the connector 242 of the power supply device 24 while temporarily holding the light source unit 2 to the instrument body 1 and also connects the signal cable 5 to the terminal block. 25.

  Finally, the operator rotates the light source unit 2 with the hole 1121 of the instrument body 1 as a fulcrum and attaches the light source unit 2 to the instrument body 1. At this time, each of the hook springs 42 of the light source unit 2 is hooked on the corresponding metal fitting 43 of the instrument body 1, so that the light source unit 2 is attached to the instrument body 1. The construction of the lighting fixture 10 is completed according to the above procedure (see FIGS. 2 and 3).

  By the way, when the above-mentioned lighting fixtures 10 are installed side by side in the front-rear direction, the first power cable 4 exposed from the ceiling plate 100 is connected to one lighting fixture 10. Further, the second lighting device 10 is fed with the second power cable 6 from the one lighting device 10, and the power is supplied through the second power cable 6. That is, in this case, an operation of sending and wiring the second power cable 6 from one lighting fixture 10 to the other lighting fixture 10 is necessary.

  At that time, the second power cable 6 can be sent and wired through the recess 11 of the instrument body 1, but the first terminal block 13 and the hook metal 43 are attached in the recess 11, so that it is difficult to work. There's a problem. Therefore, in the present embodiment, the second power cable 6 is sent and wired using the space 121 described above. Hereinafter, the construction procedure of the second power cable 6 will be specifically described.

  An operator connects one end of the second power cable 6 to the first terminal block 13 of one of the lighting fixtures 10 (right side in FIG. 4), and draws the second power cable 6 toward the space 121 through the opening 1122. Thereafter, the operator wires the second power cable 6 in the front-rear direction along the space 121 and pulls the second power cable 6 to the outside through the knockout hole 31 of the end cover 3.

  Subsequently, the operator pulls the second power cable 6 into the space 121 of the fixture body 1 through the knockout hole 31 of the end cover 3 of the other lighting fixture 10 (left side in FIG. 4). Finally, the operator pulls the second power cable 6 that has passed through the space 121 into the recess 11 from the opening 1122, and connects the other end of the second power cable 6 to the second terminal block 14. According to the above procedure, the construction of the second power cable 6 is completed.

  Here, in this embodiment, not only the second power cable 6 but also the signal cable needs to be sent and wired. However, the signal cable is opposite to the space 121 in which the second power cable 6 is wired to the recess 11. It is preferable to wire the space 121 on the side. Thereby, the 2nd power cable 6 and a signal cable can be wired separately, and the influence of the noise radiated | emitted from the 2nd power cable 6 can be suppressed. In addition, about the construction procedure of a signal cable, it is the same as that of the above-mentioned 2nd power supply cable 6, and abbreviate | omits description here.

  As described above, in the present embodiment, when the second power supply cable 6 and the signal cable are fed from one lighting fixture 10 to the other lighting fixture 10 and wired, the spaces 121 provided on both sides in the left-right direction of the recess 11. Is used. Therefore, the wiring workability can be improved as compared with the case where the second power supply cable 6 and the signal cable are sent and wired through the recess 11 to which the first terminal block 13 and the hook metal fitting 43 are attached.

  Further, when the opening 1122 is provided so as to extend from the side wall 112 to the bottom wall 111 of the recess 11 as in the present embodiment, the second power cable 6 and the signal cable can be easily passed through the opening 1122. There is an advantage that workability at the time of pulling out to the concave portion 11 side is improved. Furthermore, when the opening 1122 is provided in the vicinity of the first terminal block 13 to which the second power cable 6 is connected as in the present embodiment, the work in the recess 11 that is difficult to work is reduced. There are advantages.

  Further, when the knockout hole 31 is provided in the end cover 3 as in the present embodiment, the knockout hole 31 may not be opened for the end cover 3 that does not need to pass the second power cable 6 or the signal cable. . Therefore, it is possible to suppress the deterioration of the appearance as compared with the case where an end cover in which a through hole is previously opened is used.

  In the present embodiment, the case where the lower surface of the ceiling board 100 is a construction surface has been described as an example. However, for example, the surface of the wall board may be a construction surface. Further, in the present embodiment, the openings 1122 and 1122 are provided in the side wall portions 112 and 112 on both sides, respectively, but the opening 1122 may be provided in at least one of the side wall portions 112. Furthermore, in this embodiment, the opening 1122 is provided so as to extend from the side wall 112 to the bottom wall 111, but it is only necessary that the opening 1122 is provided at least on the side wall 112.

  As described above, the lighting fixture 10 of the present embodiment includes the fixture main body 1, the light source unit 2, and the first terminal block 13. The appliance main body 1 is attached to the lower surface (construction surface) of the ceiling board 100. The light source unit 2 is attached to the instrument body 1. The 1st terminal block 13 is attached to the instrument main body 1, and the 1st power cable 4 from the outside is connected. The appliance main body 1 has a recess 11 that is provided on the opposite side of the ceiling plate 100 in the normal direction of the lower surface of the ceiling plate 100 and that houses the light source unit 2. In addition, the fixture body 1 has a space 121 for passing the second power cable 6 connecting the second terminal block 14 and the first terminal block 13 of another lighting fixture 10 arranged next to each other in the recess 11. It is provided outside.

  According to the said structure, since the 2nd power cable 6 which is the feed wiring to the another lighting fixture 10 arrange | positioned adjacently can be wired in the space 121, in the recessed part 11 to which the 1st terminal block 13 was attached Workability can be improved as compared with the case of wiring.

  Moreover, the recessed part 11 protrudes in the direction which cross | intersects the bottom wall part 111 from the edge part of the bottom wall part 111 to which the 1st terminal block 13 is attached, and the bottom wall part 111 like the lighting fixture 10 of this embodiment. It is preferable to have a pair of side wall portions 112. In this case, a space 121 is provided on the side opposite to the recess 11 with respect to each of the pair of side wall portions 112. An opening 1122 that connects the recess 11 and the space 121 is provided in the vicinity of the first terminal block 13 in at least one of the pair of side walls 112.

  According to the above configuration, since the opening 1122 is provided in the vicinity of the first terminal block 13, there is an advantage that the work in the concave portion 11 which is difficult to work can be reduced.

  Moreover, it is preferable that the opening part 1122 is formed so that it may straddle the bottom wall part 111 like the lighting fixture 10 of this embodiment.

  According to the above configuration, since the opening 1122 is formed so as to extend from the side wall 112 to the bottom wall 111, there is an advantage that the second power cable 6 can be easily passed through the opening 1122.

  Moreover, it is preferable to provide a pair of end covers 3 that are respectively attached to both ends of the fixture main body 1 in the direction of juxtaposition with another illumination fixture 10 like the illumination fixture 10 of the present embodiment. In this case, each of the pair of end covers 3 has a knockout hole 31 through which the second power cable 6 is passed.

  According to the above configuration, the knockout hole 31 does not need to be opened for the end cover 3 that does not require the second power cable 6 to pass through. Can be suppressed.

DESCRIPTION OF SYMBOLS 1 Appliance main body 2 Light source unit 4 1st power cable 6 2nd power cable 10 Lighting fixture 11 Recess 13 First terminal block 14 Second terminal block 100 Ceiling board 121 Space

Claims (4)

An instrument body attached to the construction surface, a light source unit attached to the instrument body, and a first terminal block attached to the instrument body and connected to the first power cable from the outside,
The fixture body has a recess provided on the opposite side of the construction surface in the normal direction of the construction surface and containing the light source unit, and a second terminal block of another lighting fixture arranged next to each other. A lighting fixture, wherein a space for passing a second power cable connecting between the first terminal block and the first terminal block is provided outside the recess. The concave portion includes a bottom wall portion to which the first terminal block is attached, and a pair of side wall portions protruding in a direction intersecting the bottom wall portion from an end portion of the bottom wall portion,
The space is provided on the side opposite to the concave portion with respect to each of the pair of side wall portions,
2. The lighting apparatus according to claim 1, wherein an opening that connects the recess and the space is provided in the vicinity of the first terminal block in at least one of the pair of side walls. .   The lighting apparatus according to claim 2, wherein the opening is formed so as to straddle the bottom wall. A pair of end covers that are respectively attached to both ends of the instrument body in the direction of juxtaposition with the other lighting apparatus;
4. The lighting apparatus according to claim 1, wherein each of the pair of end covers has a knockout hole through which the second power cable passes. 5.

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