Luminaire

Abstract

To improve workability of work for attachment to an appliance body.SOLUTION: A luminaire 1 comprises an emergency light source unit 4, and an appliance body 2 supporting the emergency light source unit 4. The appliance body 2 comprises a housing part 20 formed in a long box shape, and housing at least a portion of the emergency light source unit 4. The emergency light source unit 4 comprises an emergency light source module, a lighting circuit for lighting the emergency light source module by emergency power, and a cover supporting the emergency light source module and the lighting circuit. The cover is formed in a box shape comprising an opening in one surface, and attached to the appliance body 2 while the opening is made to face the housing part 20. In the appliance body 2, a second power supply hole 204 into which a second power supply line 6 for supplying the emergency power is introduced is provided in the bottom surface of the housing part 20 opposed to the cover.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a lighting fixture, and more particularly to a lighting fixture including a light source unit that is turned on by power supplied from outside via a power line. [Background technology]

[0002] As a conventional example, the lighting fixture described in Patent Document 1 is exemplified. The lighting fixture described in Patent Document 1 includes a fixture body that is attached to a ceiling material (construction material), a light source unit that is detachably attached to the fixture body, and an emergency light source section. The fixture body is formed in an elongated shape and has a storage recess on the opposite side to the construction material in which at least a part of the light source unit is stored. The emergency light source section includes an emergency light source, an emergency power source, and a power supply device. The emergency power source includes a plurality of storage batteries, is charged by a normal power source, and supplies power to the power supply device when the normal power source is interrupted. The power supply device charges the emergency power source with the normal power source when the normal power source is normally supplied, and turns on the emergency light source with power supplied from the emergency power source when the normal power source is interrupted. The storage section of the fixture body stores the light source unit and the emergency light source section side by side along the longitudinal direction of the storage section. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-88433 A Summary of the Invention [Problem to be solved by the invention]

[0004] Meanwhile, in buildings such as high-rise office buildings and large commercial facilities, a large number of lighting fixtures are installed for emergency lighting. For this reason, the lighting fixtures installed in such buildings provide emergency lighting by being powered by an emergency power source installed in the building, instead of by a storage battery built into the lighting fixture body.

[0005] In a lighting fixture in which the emergency power supply is installed outside the fixture body as described above, the power line for the emergency power supply to which the emergency power is supplied is pulled into the fixture body and electrically connected to a lighting circuit that turns on the light source of the emergency lighting via a terminal block located within the fixture body.

[0006] However, when the terminal block is accommodated in the accommodation recess of the fixture body, it is desired to improve the workability when attaching the light source unit (common lighting light source part) to the fixture body.

[0007] An object of the present disclosure is to provide a lighting fixture that can improve the workability of installation work on the fixture body. [Means for solving the problem]

[0008] A lighting fixture according to one aspect of the present disclosure includes a light source unit and a fixture body supporting the light source unit. The fixture body has a long box-like shape and a storage section that stores at least a part of the light source unit. The light source unit includes a light source, a lighting circuit that lights the light source with emergency power, and a support member that supports the light source and the lighting circuit. The support member is formed in a box shape with one side open, and is attached to the fixture body with the opening facing the storage section. The fixture body has a power supply hole through which a power line for supplying the emergency power is introduced, on a bottom surface of the storage section that faces the support member. Effect of the Invention

[0009] The lighting fixture of the present disclosure has an advantage in that it is possible to improve the workability of the installation work on the fixture body. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is an exploded perspective view of a lighting fixture according to an embodiment of the present disclosure. [Diagram 2] 2A, 2B, and 2C are top, bottom, and side views of the lighting fixture of the same. [Diagram 3] FIG. 3 is a bottom view of the emergency light source unit in the lighting fixture. [Figure 4] FIG. 4 is an exploded perspective view of the emergency light source unit as viewed from below. [Diagram 5] FIG. 5 is an exploded perspective view of the emergency light source unit as viewed from above. [Figure 6] FIG. 6 is a top view of the emergency light source unit. [Figure 7] FIG. 7 is a side view of the emergency light source unit. [Figure 8] FIG. 8 is a side view of the emergency light source unit. [Figure 9] FIG. 9 is a side view of the emergency light source unit. [Figure 10] Fig. 10A is a bottom view of the above lighting fixture with a part omitted, showing a state in which a normal light source unit and an emergency light source unit are removed. Fig. 10B is a bottom view of the above lighting fixture with a part omitted. [Figure 11] FIG. 11 is a perspective view of a lighting fixture according to the first modification. [Figure 12] FIG. 12 is a side view of the lighting fixture according to the first modification. [Figure 13] FIG. 13 is a perspective view of a lighting fixture according to the second modification. [Figure 14] FIG. 14 is a perspective view of a lighting fixture according to the third modification. [Figure 15] FIG. 15 is a perspective view of a lighting fixture according to the fourth modification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A light source unit and a lighting device according to an embodiment 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 diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configuration described in the following embodiment is merely one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0012] The lighting fixture 1 according to the embodiment is a so-called separately powered emergency lighting fixture that is installed in a building such as a high-rise building or a large commercial facility and provides emergency lighting by receiving power from an emergency power source installed in the building. The light source unit according to the embodiment is an emergency light source unit 4 that provides emergency lighting and is attached to the lighting fixture 1. In the following description, unless otherwise specified, the front-rear, up-down, and left-right directions indicated by arrows in FIG. 1 are defined as the front-rear, up-down, and left-right directions of the emergency light source unit 4, the lighting fixture 1, and other components.

[0013] (1. Overview of lighting fixture configuration) As shown in FIGS. 1 and 2, the lighting fixture 1 includes a fixture body 2, a normal light source unit 3, and an emergency light source unit 4.

[0014] The normal light source unit 3 is turned on by normal power supplied from a normal power source such as a commercial power system, and is turned off when the supply of normal power is stopped (power outage). The normal light source unit 3 is supplied with normal power from the normal power source via the first power line 5.

[0015] The emergency light source unit 4 is turned on by emergency power supplied from the emergency power source, and is turned off when the supply of emergency power is stopped. The emergency power source has a DC power supply device with a storage battery and / or a private power generation device. The emergency light source unit 4 is supplied with emergency power from the emergency power source via a second power supply line 6. However, the second power supply line 6 is composed of a so-called fire-resistant electric wire.

[0016] The fixture body 2 is installed on the ceiling of each room, conference room, and corridor of the building. The fixture body 2 supports the normal light source unit 3 and the emergency light source unit 4. The fixture body 2 has a first power supply hole 203 for introducing the first power supply line 5 from the outside, and a second power supply hole 204 for introducing the second power supply line 6 from the outside.

[0017] (2. Structure of the device body) The device main body 2 includes a storage section 20, a pair of inclined sections 21, and an attachment section (a hook hole 207 and a receiving metal fitting 23 described later). The storage section 20 is formed in a long box shape with the left-right direction as the longitudinal direction and the bottom surface open. The storage section 20 has a bottom plate 200, a pair of first side plates 201, and a pair of second side plates 202. The bottom plate 200 is formed in a long rectangular shape. The pair of first side plates 201 are each formed in a long rectangular shape. Each of the first side plates 201 protrudes from an end (front end and rear end) along the longitudinal direction of the bottom plate 200 along the thickness direction (downward) of the bottom plate 200. Each of the pair of second side plates 202 is formed in an inverted trapezoid shape. Each of the second side plates 202 protrudes from an end (left end and right end) along the lateral direction of the bottom plate 200 along the thickness direction (downward) of the bottom plate 200.

[0018] Each of the pair of inclined portions 21 is formed in a long rectangular shape. One inclined portion 21 protrudes obliquely upward from one end (front end) along the longitudinal direction of the storage portion 20. The other inclined portion 21 protrudes obliquely upward from the other end (rear end) along the longitudinal direction of the storage portion 20. In addition, both ends (left end and right end) of each inclined portion 21 in the longitudinal direction are connected to the oblique sides of each second side plate 202.

[0019] A first power supply hole 203 is provided in the center of the length of the bottom plate 200 (see Figs. 1 and 2A). The first power supply hole 203 is a round hole, and is located in the center of the length of the bottom plate 200 in the short direction. A power supply terminal block 24 is attached near the first power supply hole 203 on the lower surface of the bottom plate 200 (see Fig. 1). The power supply terminal block 24 is electrically connected to the first power supply line 5 introduced from the first power supply hole 203. Three electric wires 240 including a ground wire are drawn out from the power supply terminal block 24. Furthermore, a plug connector 241 is electrically connected to the ends of these three electric wires 240.

[0020] In addition, four bolt holes 205 are provided in the bottom plate 200. The four bolt holes 205 are circular holes, with two provided in front of and two provided behind the first power supply hole 203. Of these four bolt holes 205, one mounting bolt embedded in the ceiling is inserted into each of two bolt holes 205 that are equidistant from the first power supply hole 203. Then, nuts are tightened onto these two mounting bolts, whereby the fixture main body 2 is attached to the ceiling (ceiling material).

[0021] In addition, a second power supply hole 204 is provided at the right end portion of the bottom plate 200. The second power supply hole 204 is a circular hole, and is located toward the rear of the right end portion of the bottom plate 200 (see FIGS. 1 and 2A). A bushing 206 is attached to the edge of the second power supply hole 204 in the bottom plate 200. The bushing 206 is formed in an annular shape from an electrically insulating material such as synthetic rubber. The bushing 206 protects the second power supply line 6 (the covering thereof) introduced from the second power supply hole 204 from the edge of the second power supply hole 204 in the bottom plate 200.

[0022] A pair of hanging holes 207 are provided in the front first side plate 201 (see FIG. 1). Each hanging hole 207 is a rectangular hole and is provided near the bottom plate 200 with its longitudinal direction aligned with the longitudinal direction (left-right direction) of the first side plate 201.

[0023] A pair of receiving fittings 23 are attached to the underside of the bottom plate 200 near the first rear side plate 201 (see FIG. 1). Each receiving fitting 23 is located outside the hook hole 207 in the longitudinal direction of the first side plate 201.

[0024] (3. Configuration of regular light source unit) The regular light source unit 3 includes a regular light source, a mounting member 30 to which the regular light source is attached, a light-transmitting cover 31 that covers the regular light source, and a power supply device 34 that lights up the regular light source (see FIG. 1). The regular light source has a long board and a number of LEDs (light emitting diodes) mounted on the surface of the board. The mounting member 30 is formed into a long rectangular gutter shape from a metal material. The mounting member 30 has a bottom wall formed into a long rectangular plate shape and a pair of side walls 300 that rise upward from both ends in the short direction (left and right direction) of the bottom wall. The regular light source is attached to the lower surface of the bottom wall of the mounting member 30. The power supply device 34 converts regular power (AC power) supplied via the power terminal block 24, the electric wire 240, and the plug connector 241 into DC power. The power supply device 34 is attached to the upper surface of the bottom wall of the mounting member 30. The utility light source and the power supply unit 34 are electrically connected by an electric wire inserted through a through hole provided in the bottom wall. The utility light source is turned on by receiving DC power from the power supply unit 34 via the electric wire.

[0025] The light-transmitting cover 31 is made of a light-transmitting synthetic resin material such as acrylic resin or polycarbonate resin, and is formed in a long box shape with an open top. The bottom surface of the light-transmitting cover 31 is formed in a curved shape that gently protrudes downward from both ends toward the center in the short side direction (front-rear direction). The synthetic resin material forming the light-transmitting cover 31 contains a diffusing material. That is, the light emitted from the regular light source is diffused when passing through the light-transmitting cover 31.

[0026] The mounting member 30 also includes a pair of hook fittings 32 and a pair of hook springs 33. The tip of each of the pair of hook fittings 32 is formed into a hook shape. The hook-shaped tip portions of the pair of hook fittings 32 are provided near both ends in the longitudinal direction of the mounting member 30 so as to climb over the front side wall 300. The pair of hook springs 33 are formed of torsion coil springs. Each hook spring 33 is provided near both the left and right ends at the rear end of the mounting member 30.

[0027] The regular light source unit 3 is detachably attached to the fixture body 2 by hooking the pair of hooking fittings 32 one by one to the pair of hooking holes 207 of the fixture body 2 and hooking the pair of hooking springs 33 one by one to the pair of receiving fittings 23 of the fixture body 2. The regular light source unit 3 is attached to the fixture body 2 such that the part other than the light-transmitting cover 31 is housed in the housing section 20 of the fixture body 2 and the light-transmitting cover 31 protrudes from the opening of the housing section 20 (the lower surface of the housing section 20) (see FIG. 2B). Specifically, the pair of side walls 300 of the mounting member 30, the power supply unit 34, and the like are housed in the housing section 20.

[0028] (4. Configuration of emergency light source unit) As shown in FIGS. 3 to 9, the emergency light source unit 4 has an emergency LED module 40, a lighting circuit block 41, a terminal block 42, a cover 43, a mounting plate 44, and a pressing piece 45.

[0029] (4-1. Emergency LED module configuration) The emergency LED module 40 includes an LED 400, an LED holder 401, a lens 402, a lens holder 403, and a heat sink 404 (see FIGS. 3 and 4). The LED 400 is, for example, a packaged white LED for lighting.

[0030] The heat sink 404 is formed in a flat plate shape from a material that is a good conductor of heat, such as aluminum or an aluminum alloy (see FIG. 4). An LED holder 401 that supports the LEDs 400 is screwed to the lower surface of the heat sink 404. However, it is preferable to place a thermally conductive sheet between the LEDs 400 and the heat sink 404. Thus, the heat generated by the LEDs 400 is conducted to the heat sink 404 via the thermally conductive sheet.

[0031] Lens 402 controls the distribution of light emitted from LED 400. Lens 402 is attached to the lower surface of heat sink 404 by lens holder 403 so as to cover LED 400 (see FIG. 4). Lens holder 403 is fixed to heat sink 404 by screws.

[0032] (4-2. Configuration of the lighting circuit block) The lighting circuit block 41 has a lighting circuit 410, a case 411, a first output wire 412 for input, and a second output wire 413 for output (see FIGS. 4 to 8).

[0033] The lighting circuit 410 includes a rectifier circuit, a converter circuit, a control circuit, a control power supply circuit, and the like. The lighting circuit 410 is configured with a printed circuit. The first output wire 412 and the second output wire 413 each include two electric wires, a positive electric wire and a negative electric wire. One end of the first output wire 412 is electrically connected to an input terminal of the lighting circuit 410, and one end of the second output wire 413 is electrically connected to an output terminal of the lighting circuit 410. The other end of the first output wire 412 is electrically connected to a terminal block 42 described later. The other end of the second output wire 413 is electrically connected to the emergency LED module 40. Thus, the DC power (DC current) output from the lighting circuit 410 is supplied to the emergency LED module 40 via the second output wire 413.

[0034] Case 411 is formed in a box shape from an electrically insulating synthetic resin material. A lighting circuit 410 is housed inside case 411 (see FIG. 4). A first output wire 412 is led out of case 411 through a first opening 414 provided in a side surface of case 411 (see FIG. 7). A second output wire 413 is led out of case 411 through a second opening 415 provided in a side surface of case 411 (see FIG. 8).

[0035] (4-3. Terminal block configuration) The terminal block 42 is, for example, a screwless terminal block. This type of screwless terminal block (also called a quick-connect terminal block) has a housing 420 formed in a rectangular parallelepiped shape. Two pairs of primary side (power supply side) insertion holes (first insertion holes 421) and two pairs of secondary side (load side) insertion holes (second insertion holes 422) are provided on the front (rear) of the housing 420. The terminal block 42 can complete an electrical connection with a conductor simply by inserting a conductor (e.g., a copper solid wire) into each insertion hole. Each conductor of the first output wire 412 is inserted into the second insertion hole 422 of the terminal block 42 (see FIG. 8). Each conductor of the second power supply line 6 is inserted into the first insertion hole 421 of the terminal block 42.

[0036] (4-4. Configuration of mounting plate and pressing piece) The mounting plate 44 has a fixed plate 440, a side plate 441, and a pair of support plates 442 (see Figs. 4 and 5). The fixed plate 440, the side plate 441, and the pair of support plates 442 are each formed in a rectangular shape. The side plate 441 protrudes upward from one end (right end) of the fixed plate 440 in the longitudinal direction. A locking hole 443 consisting of a square hole is provided at the upper end of the side plate 441 in the center in the vertical direction (see Fig. 5).

[0037] The pair of support plates 442 protrude upward from both ends (front end and rear end) of the fixing plate 440 in the longitudinal direction. Each support plate 442 has a fixing hole 444 consisting of a rectangular hole and a vertical groove 445. The fixing hole 444 is provided at the left end of each support plate 442. The vertical groove 445 is provided at the right end of each support plate 442 along the up-down direction. The upper end of the vertical groove 445 is open (see FIG. 5).

[0038] The pressing piece 45 has an L-shaped main piece 450, a screw fastening piece 451 protruding from one longitudinal end of the main piece 450, and a V-shaped locking piece 452 protruding from the other longitudinal end of the main piece 450.

[0039] The emergency LED module 40 is attached to the mounting plate 44 by being screwed to the lower surface of the fixing plate 440 (see FIG. 4).

[0040] The lighting circuit block 41 is attached to the mounting plate 44 by a pair of support plates 442 and a pressing piece 45. Two fixing claws 416 and a long protruding portion 417 are provided on both upper and lower side surfaces of the case 411 of the lighting circuit block 41. The lighting circuit block 41 is positioned with respect to the mounting plate 44 by inserting each of the protruding portions 417 of the case 411 into two vertical grooves 445 of each of the support plates 442. Furthermore, the two fixing claws 416 provided on the case 411 of the lighting circuit block 41 are inserted into the fixing holes 444 of each of the support plates 442, one by one. Furthermore, the pressing piece 45 is attached to the upper surface of the fixing plate 440 of the mounting plate 44 so that the upper surface of the case 411 of the lighting circuit block 41 is pressed by the main piece 450 (see FIG. 6). More specifically, the screw fastening piece 451 of the pressing piece 45 is screwed to the fixed plate 440, and the locking piece 452 of the pressing piece 45 is locked to the edge of the locking hole 443 of the side plate 441 (see FIGS. 7 to 9).

[0041] (4-5. Cover composition) The cover 43 has a cover body 430 and an attachment piece 431 formed integrally with the cover body 430 (see Figs. 4 and 5). The cover body 430 and the attachment piece 431 are integrally formed from a non-combustible material such as metal (e.g., aluminum die casting).

[0042] The cover body 430 is formed in a box shape with an open top, and covers and protects the emergency LED module 40, the lighting circuit block 41, and the terminal block 42. The bottom surface of the cover body 430 is formed in a curved shape that protrudes gently downward from both ends toward the center in the short side direction (front-rear direction) like the light-transmitting cover 31 of the normal light source unit 3 (see Figs. 4 and 9). A recess 4300 is formed in the bottom surface of the cover body 430. The recess 4300 is formed in an oval shape when viewed from below (see Fig. 3). A hole 4301 penetrates the center (bottom) of the recess 4300. The hole 4301 is formed in a shape (circle) that allows a part of the lens 402 of the emergency LED module 40 to be inserted therethrough.

[0043] On the upper surface of the cover body 430, there are provided a plurality of bosses 4302, a fixing portion 432 to which the terminal block 42 is fixed, and a pair of hook portions 433 (see FIG. 5). Each boss 4302 is formed in a cylindrical shape. A screw hole is provided in each boss 4302. Thus, the mounting plate 44 is attached to the cover body 430 by screwing the mounting plate 44 to the plurality of bosses 4302 (see FIG. 6).

[0044] The fixing portion 432 protrudes upward from the left end portion at the front end of the upper surface of the cover body 430 (see FIG. 5). The fixing portion 432 is formed in a flat plate shape. A circular screw insertion hole 4320 is provided at the upper portion of the fixing portion 432. Thus, a screw 4321 inserted into the screw insertion hole 4320 is screwed into a hole provided in the rear surface (front surface) of the housing 420, whereby the housing 420 of the terminal block 42 is fixed to the rear surface of the fixing portion 432 (see FIGS. 6 and 7).

[0045] Each of the pair of hook portions 433 is formed in an L shape (see FIGS. 7 and 8). Each hook portion 433 protrudes upward from both the upper and lower ends of the left end of the upper surface of the cover body 430 so as to leave a gap between the upper end of the left end of the cover body 430 and the hook portion 433 (see FIGS. 7 and 8).

[0046] The mounting piece 431 has a first protruding piece 4311 protruding upward from the upper left end of the cover body 430, and a second protruding piece 4312 protruding leftward from the center in the front-rear direction at the upper end of the first protruding piece 4311 (see FIG. 5). Also, the second protruding piece 4312 is provided with a screw insertion hole.

[0047] (4-6. Emergency light source unit mounting structure) The emergency light source unit 4 is attached to the fixture body 2 using the attachment piece 431 and a pair of hooks 433. The pair of hooks 433 are hooked to a flat protruding piece 208 provided in the storage section 20 of the fixture body 2. The protruding piece 208 protrudes inward (leftward) from the lower end of the right end of the storage section 20 (see FIG. 1). The attachment piece 431 is screwed to the bottom plate 200 by screwing a fixing screw 46 inserted into a screw insertion hole of the second protruding piece 4312 into a screw hole 209 (see FIG. 1) provided in the right end portion of the bottom plate 200 of the storage section 20.

[0048] (5. Modifications of the Lighting Fixture According to the Embodiment) (5-1. Variation 1) The lighting fixture 1A according to the first modification differs from the lighting fixture 1 according to the embodiment in the configuration of the fixture body 2A. The lighting fixture 1A according to the first modification (hereinafter, abbreviated as lighting fixture 1A) is a so-called recessed lighting fixture that is installed on a ceiling by recessing the fixture body 2A into a recessed hole provided in a double ceiling such as a system ceiling. However, in the lighting fixture 1A, the normal light source unit 3 and the emergency light source unit 4 are the same as the normal light source unit 3 and the emergency light source unit 4 of the lighting fixture 1 according to the embodiment. Therefore, a description of the normal light source unit 3 and the emergency light source unit 4 will be omitted.

[0049] As shown in Fig. 11 and Fig. 12, the fixture body 2A has a storage section 20A, a reflector unit 25, and a frame body 26. The storage section 20A has almost the same configuration as the storage section 20 in the fixture body 2 of the lighting fixture 1 according to the embodiment, except that both ends in the longitudinal direction are open. That is, the storage section 20A is formed in a long box shape. Note that a first power supply hole and a second power supply hole are provided in a bottom plate 200 of the storage section 20A at the same positions as the storage section 20 of the lighting fixture 1 according to the embodiment.

[0050] The reflector unit 25 has a pair of first reflectors 251 and a pair of second reflectors 252. The pair of first reflectors 251 is formed in a long rectangular flat plate shape having approximately the same dimension as the longitudinal length dimension of the bottom plate 200. One of the first reflectors 251 is provided so as to incline downward and forward from the lower end of the front first side plate. The other of the first reflectors 251 is provided so as to incline downward and backward from the lower end of the rear first side plate. The pair of second reflectors 252 is formed in a trapezoidal shape. The front end of one of the second reflectors 252 is connected to the left end of the front first reflector 251, and the rear end is connected to the left end of the rear first reflector 251. The front end of the other of the second reflectors 252 is connected to the right end of the front first reflector 251. The rear end of the other second reflector 252 is joined to the right end of the rear first reflector 251. In other words, the reflector unit 25 is formed in a long rectangular frustum shape with open top and bottom surfaces.

[0051] The frame 26 is formed in a long rectangular frame shape and is joined to the lower end of the reflecting plate unit 25 (see FIGS. 11 and 12).

[0052] In the fixture body 2A configured as described above, the accommodation section 20A and the reflector unit 25 are inserted into a rectangular embedding hole provided in a ceiling plate, and the fixture body 2A (bottom plate 200 of the accommodation section 20A) is attached to a mounting bolt hanging down from a ceiling slab. The frame 26 is configured to abut against the underside (ceiling surface) of the ceiling material from below, and to close the gap between the edge of the embedding hole in the ceiling material and the reflector unit 25.

[0053] Here, in the fixture body 2A, the side plate 441 of the mounting plate 44 of the emergency light source unit 4 faces the opening 27 at one end in the longitudinal direction of the storage section 20A along the longitudinal direction of the storage section 20A (see FIG. 12). In other words, the side plate 441 of the emergency light source unit 4 blocks most of the opening 27 of the storage section 20A, thereby suppressing the intrusion of foreign matter such as dust into the storage section 20A.

[0054] (5-2. Variation 2) The lighting fixture 1B according to the modified example 2 differs from the lighting fixture 1 according to the embodiment in the configuration of the fixture body 2B. The lighting fixture 1B according to the modified example 2 (hereinafter, abbreviated as lighting fixture 1B) is a so-called direct-attach type lighting fixture that is directly attached to a ceiling material using mounting bolts, like the lighting fixture 1 according to the embodiment. However, in the lighting fixture 1B, the normal light source unit 3 and the emergency light source unit 4 are the same as the normal light source unit 3 and the emergency light source unit 4 of the lighting fixture 1 according to the embodiment. Therefore, a description of the normal light source unit 3 and the emergency light source unit 4 will be omitted.

[0055] The fixture body 2B has a storage section 20B and a pair of reflectors 28 (see FIG. 13). The storage section 20B has a configuration substantially common to the storage section 20 in the fixture body 2 of the lighting fixture 1 according to the embodiment. That is, the storage section 20B is formed in a long box shape. Note that a first power supply hole and a second power supply hole are provided in the bottom plate of the storage section 20B at positions similar to those of the storage section 20 of the lighting fixture 1 according to the embodiment.

[0056] Each of the pair of reflecting plates 28 is formed in a long rectangular shape. Each of the reflecting plates 28 protrudes from the lower ends of a pair of side plates aligned in the longitudinal direction of the storage section 20B so as to incline downward and outward.

[0057] The fixture body 2B configured as described above is directly attached to the ceiling board by attaching the receiving portion 20B to a mounting bolt embedded in the ceiling board.

[0058] The lighting fixture according to the embodiment does not necessarily have to be formed in a long rectangular shape. For example, the lighting fixture may be configured such that the fixture body is formed in a circular shape, a circular emergency light source unit is attached to the center of the fixture body, and an annular normal light source unit is attached around the emergency light source unit.

[0059] (5-3. Variation 3) The lighting fixture 1C according to the third modification is a dedicated emergency lighting fixture that provides only emergency lighting, a so-called emergency light. As shown in FIG. 14, the lighting fixture 1C according to the third modification (hereinafter, abbreviated as lighting fixture 1C) has a shape similar to the emergency light source unit 4 of the lighting fixture 1 according to the embodiment.

[0060] The lighting fixture 1C includes a fixture body 2C formed in a rectangular box shape, and a cover 43C that is connected to the fixture body 2C so as to cover an opening on the bottom surface of the fixture body 2C. The fixture body 2C and the storage section are integrally formed.

[0061] The fixture body 2C is attached directly to the ceiling board by being attached to a mounting bolt embedded in the ceiling board.

[0062] (5-4. Variation 4) The lighting fixture 1D according to the modified example 4 is a dedicated emergency lighting fixture (emergency light) like the lighting fixture 3. The lighting fixture 1D according to the modified example 4 (hereinafter, abbreviated as lighting fixture 1D) includes a cylindrical fixture body 2D, a disk-shaped cover 43D that covers the lower surface of the fixture body 2D, and a pair of mounting springs 47, as shown in Fig. 15 .

[0063] The lens 402 of the emergency LED module 40 protrudes downward from the lower surface of the cover 43D through a window provided in the center of the cover 43D.

[0064] The fixture body 2D is inserted into an embedding hole provided in a ceiling board together with a pair of mounting springs 47. Then, the lighting fixture 1D is attached to the ceiling board such that the ceiling board is sandwiched between the pair of mounting springs 47 and the cover 43D.

[0065] (6. Features of the Light Source Unit [Emergency Light Source Unit] According to the Embodiment) The emergency light source unit 4 includes a terminal block 42 electrically connected to the lighting circuit 410, and one or more support members (a cover 43 and a mounting plate 44) that support the lighting circuit 410 and the terminal block 42 side by side. The terminal block 42 has a housing 420 provided with a first insertion hole 421 into which a second power supply line 6 for supplying power to the lighting circuit 410 is inserted. The cover 43 supports the terminal block 42 so that a first direction (forward direction) in which the second power supply line 6 is inserted into the first insertion hole 421 intersects with a second direction (left-right direction) in which the emergency LED module 40 and the terminal block 42 are adjacent to each other, and a space is provided in front of the first insertion hole 421 of the housing 420 along the first direction (see FIGS. 6 and 8).

[0066] Therefore, since the emergency light source unit 4 has a space in front of the first insertion hole 421 of the housing 420, the second power line 6 can be easily inserted into the first insertion hole 421 to electrically connect to the terminal block 42. As a result, the emergency light source unit 4 can be easily attached to the fixture body 2.

[0067] In addition, in the emergency light source unit 4, the cover 43 includes a cover body 430 that protects the emergency LED module 40, the lighting circuit 410, and the terminal block 42. Therefore, the emergency light source unit 4 can protect the emergency LED module 40, the lighting circuit 410, and the terminal block 42 from, for example, heat and flames caused by a fire. The light emitted from the emergency LED module 40 is irradiated into the lighting space through the hole 4301 of the cover body 430. Furthermore, in the emergency light source unit 4, the cover body 430 (cover 43) and the mounting plate 44 are integrally joined by screws, so that the workability of the assembly work can be improved. Moreover, the cover 43 has an attachment piece 431 for attaching the cover body 430 to the fixture body 2, and the attachment piece 431 protrudes outside the cover body 430. Therefore, the emergency light source unit 4 can further improve the workability of the assembly work.

[0068] Here, the mounting plate 44 has a fixing plate 440 to which the emergency LED module 40 is fixed, and a side plate 441 rising from the fixing plate 440 along the thickness direction (up-down direction) of the fixing plate 440. The fixing plate 440 and the side plate 441 are integrally formed from a metal plate (metal material) such as a stainless steel plate or a galvanized steel plate.

[0069] Therefore, for example, when an opening 27 is present in the storage section 20A, the emergency light source unit 4 can prevent foreign matter such as dust from entering the storage section 20A by blocking most of the opening 27 with the side panel 441.

[0070] (7. Features of the lighting fixture according to the embodiment) The lighting fixture 1 (including lighting fixtures 1A and 1B of modifications 1 and 2; the same applies below) comprises a normal light source unit 3, an emergency light source unit 4, and a fixture body 2. The fixture body 2 has a storage section 20 formed in a long box shape, a hook hole 207, and a receiving metal fitting 23. The storage section 20 stores at least a portion of each of the normal light source unit 3 and the emergency light source unit 4. The hook hole 207 and the receiving metal fitting 23 are provided in the storage section 20 and allow the normal light source unit 3 to be detachably attached. The fixture body 2 supports the normal light source unit 3 and the emergency light source unit 4 in a state where they are stored side by side along the longitudinal direction of the storage section 20.

[0071] Thus, the lighting fixture 1 can provide both normal lighting and emergency lighting by supporting the normal light source unit 3 and the emergency light source unit 4 on one fixture body 2. Moreover, in the lighting fixture 1, the emergency light source unit 4 has a space provided in front of the first insertion hole 421 of the housing 420, so that the second power supply line 6 can be easily inserted into the first insertion hole 421 to electrically connect to the terminal block 42. As a result, the lighting fixture 1 can improve the ease of installation of the emergency light source unit 4 on the fixture body 2.

[0072] Furthermore, in lighting fixture 1, housing 20 has second power supply hole 204 for introducing second power supply line 6 electrically connected to terminal block 42. Terminal block 42 is disposed so that first insertion hole 421 of housing 420 faces second power supply hole 204. Here, "facing first insertion hole 421 to second power supply hole 204" means that in the width direction of housing 20, the front surface of housing 420 of terminal block 42 faces the rear of housing 20 where second power supply hole 204 is provided.

[0073] Thus, by facing the first plug hole 421 to the second power supply hole 204, the lighting device 1 can reduce the excess length of the second power supply wire 6 required in the housing section 20, as compared to a case in which the first plug hole 421 faces downward. As a result, the lighting device 1 can reduce the space required for accommodating the excess length of the second power supply wire 6 in the housing section 20, and prevent the device body 2 from becoming larger.

[0074] Meanwhile, the first power supply hole 203 into which the first power supply wire 5 is introduced and the second power supply hole 204 into which the second power supply wire 6 is introduced are provided independently in the fixture body 2 of the lighting fixture 1. Therefore, the lighting fixture 1 can further facilitate the work of routing the first power supply wire 5 and the second power supply wire 6 inside the fixture body 2, compared to a case in which a single hole is shared as the first power supply hole 203 and the second power supply hole 204.

[0075] (8. Summary) The light source unit (emergency light source unit 4) according to the first embodiment of the present disclosure includes a light source (emergency LED module 40) and a lighting circuit (410) that lights the light source. The light source unit according to the first embodiment includes a terminal block (42) electrically connected to the lighting circuit (410), and one or more support members (cover 43, mounting plate 44) that support at least the light source and the terminal block (42) side by side. The terminal block (42) has a housing (420) provided with an insertion hole (first insertion hole 421) into which a power line (second power line 6) for supplying power to the lighting circuit (410) is inserted. The support member supports the terminal block (42) so that a first direction (forward direction) in which the power line is inserted into the insertion hole intersects with a second direction (left-right direction) in which the light source and the terminal block (42) are adjacent to each other, and a space is provided in front of the insertion hole of the housing (420) along the first direction.

[0076] In the light source unit according to the first embodiment, a space is provided in front of the insertion hole (first insertion hole 421) of the housing (420), so that the power line (second power line 6) can be easily inserted into the insertion hole to electrically connect to the terminal block (42). As a result, the light source unit according to the first embodiment can improve the workability of the installation work to the fixture body (2).

[0077] A light source unit according to a second aspect of the present disclosure can be realized by combining with the first aspect. In the light source unit according to the second aspect, the support member preferably includes a protective member (cover body 430) that protects the light source, the lighting circuit (410), and the terminal block (42). The protective member preferably has an opening (hole 4301) that passes light emitted from the light source.

[0078] The light source unit according to the second aspect can protect the light source, the lighting circuit (410), and the terminal block (42) from heat and flames caused by a fire, for example.

[0079] A light source unit according to a third aspect of the present disclosure can be realized by combining with the second aspect. In the light source unit according to the third aspect, it is preferable that the protection member is integrally joined with the support member.

[0080] The light source unit according to the third aspect can improve the workability of the assembly work compared to a case in which the protection member is not integrally joined to the support member.

[0081] A light source unit according to a fourth aspect of the present disclosure can be realized by combining with any one of the first to third aspects. In the light source unit according to the fourth aspect, the support member has a fixing plate (440) to which the light source is fixed, and a side plate (441) rising from the fixing plate (440) along the thickness direction of the fixing plate (440). The fixing plate (440) and the side plate (441) are preferably integrally formed from a metal material.

[0082] In the light source unit of the fourth aspect, for example, when a part of the storage section (20A) is open, the open part can be covered with the side plate (441), thereby preventing foreign matter such as dust from entering the storage section (20A).

[0083] A light source unit according to a fifth aspect of the present disclosure can be realized by combining with any one of the first to fourth aspects. In the light source unit according to the fifth aspect, the support member preferably includes a protective member (cover 43) that protects the light source, the lighting circuit (410), and the terminal block (42). The protective member preferably has an attachment piece (431) for attaching the protective member to the fixture body (2). The attachment piece (431) preferably protrudes outside the protective member.

[0084] The light source unit according to the fifth aspect can further improve the workability of the assembly work, compared to a case in which the attachment piece does not protrude outside the protective member.

[0085] A lighting fixture (1; 1A; 1B) according to a sixth aspect of the present disclosure includes a first light source unit (normal light source unit 3), a second light source unit (emergency light source unit 4), and a fixture body (2) that supports the first light source unit and the second light source unit. The second light source unit is the light source unit according to any one of the first to fifth aspects. The fixture body (2) has a storage section (20) formed in a long box shape and an attachment section (hanging hole 207, receiving metal fitting 23). The storage section (20) stores at least a part of each of the first light source unit and the second light source unit. The attachment section is provided in the storage section (20) and detachably attaches the first light source unit. The fixture body (2) supports the first light source unit and the second light source unit in a state of being stored and aligned along the longitudinal direction of the storage section (20).

[0086] The lighting fixture (1; 1A; 1B) according to the sixth aspect can improve the workability of mounting the second light source unit to the fixture body (2).

[0087] A lighting device (1; 1A; 1B) according to a seventh aspect of the present disclosure can be realized by combining it with the sixth aspect. In the lighting device (1; 1A; 1B) according to the seventh aspect, the protective member preferably has a fixing portion (432) to which the terminal block (42) is fixed. The housing portion (20) preferably has a power supply hole (second power supply hole 204) for introducing a power supply line (second power supply line 6) electrically connected to the terminal block (42). The terminal block (42) is preferably arranged so that the insertion hole (first insertion hole 421) of the housing (420) faces the power supply hole.

[0088] The lighting fixture (1; 1A; 1B) according to the seventh aspect can reduce the excess length of the power supply line required in the housing section (20; 20A; 20B). As a result, the lighting fixture (1; 1A; 1B) according to the seventh aspect can reduce the space required for housing the excess length of the wiring (second power supply line 6) in the housing section (20; 20A; 20B), thereby preventing the fixture body (2; 2A; 2B) from becoming larger.

[0089] A lighting device (1; 1A; 1B) according to an eighth aspect of the present disclosure can be realized by combining with the seventh aspect. In the lighting device (1; 1A; 1B) according to the eighth aspect, the power supply hole preferably includes a first power supply hole (203) and a second power supply hole (204). The first power supply hole (203) is adapted to receive a first power supply line (5) for supplying normal power to the first light source unit. The second power supply hole (204) is adapted to receive a second power supply line (6) for supplying emergency power to the second light source unit.

[0090] The lighting fixture (1; 1A; 1B) of the eighth aspect can facilitate the work of routing the first power supply wire (5) and the second power supply wire (6) within the fixture body (2; 2A; 2B) compared to a case in which a single hole is used as the first power supply hole (203) and the second power supply hole (204). [Explanation of symbols]

[0091] 1, 1A, 1B Lighting fixtures 2, 2A, 2B Equipment body 3 Regular light source unit (first light source unit) 4 Emergency light source unit (light source unit; second light source unit) 5 1st power line 6 2nd power line (power line) 20, 20A, 20B Receptacle 23 Bracket (mounting part) 40 Emergency LED module (light source) 42 Terminal block 43 Cover (support member) 44 Mounting plate (support member) 203 1st power hole 204 2nd power hole (power hole) 207 Hook hole (mounting part) 410 Lighting circuit 412 First outlet line (Outlet line) 420 Case 421 1st insertion hole (insertion hole) 430 Cover body (protective material) 431 Mounting piece 432 Fixed part 440 Fixed plate 441 Side Panel 4301 hole (opening)

Claims

1. A light source unit; A fixture body supporting the light source unit; Equipped with The fixture body has a housing portion formed in a long box shape and housing at least a part of the light source unit, The light source unit includes: A light source; a lighting circuit for lighting the light source by emergency power; a support member for supporting the light source and the lighting circuit; Equipped with The support member is formed in a box shape having an opening on one side, and is attached to the device body with the opening facing the storage portion, The device body has a power supply hole through which a power supply line for supplying the emergency power is introduced, on a bottom surface of the storage portion facing the support member. Lighting fixtures.

2. The support member supports the light source and the lighting circuit such that the light source and the lighting circuit overlap with each other along a direction in which the light source unit is accommodated in the accommodation portion.

2. The lighting device of claim 1.

3. The support member has a hole through which a portion of the light source is exposed.

3. A lighting fixture according to claim 1 or 2.

4. The lamp further includes a regular light source unit having a regular light source that is turned on by regular power, The fixture body supports the regular light source unit so as to accommodate a part of the regular light source unit adjacent to the light source unit along the longitudinal direction of the accommodation portion. A lighting device according to any one of claims 1 to 3.

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