JP7620902B2 - Lighting fixtures - Google Patents

Description

The present disclosure relates to a lighting fixture, and more specifically, to a lighting fixture having two light source units.

Conventionally, lighting fixtures that provide both regular lighting and emergency lighting and that incorporate a storage battery as an emergency power source have been provided (see, for example, Patent Document 1).

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 side opposite 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 has multiple storage batteries, is charged by a normal power source, and supplies power to the power supply device when the normal power source is interrupted. When the normal power source is being supplied normally, the power supply device charges the emergency power source with the normal power source, and when the normal power source is interrupted, the power supplied from the emergency power source turns on the emergency light source. The storage section of the fixture body stores the light source unit and the emergency light source section aligned along the longitudinal direction of the storage section.

JP 2015-88433 A

However, 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 use emergency lighting powered by an emergency power source installed in the building, instead of a built-in storage battery.

As described above, in lighting fixtures in which the emergency power supply is installed outside the main body of the fixture, the power line for the emergency power supply to which the emergency power is supplied is pulled into the main body of the fixture and electrically connected to the lighting circuit that turns on the light source of the emergency lighting via a terminal block located inside the main body of the fixture.

However, when the terminal block is housed in a recess in the fixture body, it is desirable to improve the ease of installation when attaching the light source unit (common lighting light source part) to the fixture body.

The objective of this disclosure is to provide a lighting fixture that can improve the ease of installation.

A lighting fixture according to one aspect of the present disclosure includes a first light source unit, a second light source unit, a terminal block electrically connected to the second light source unit, and a fixture body supporting the first light source unit and the second light source unit. The fixture body has a long box-shaped storage section that stores at least a portion of the first light source unit and the second light source unit, and an attachment section that is provided in the storage section and to which the first light source unit is detachably attached. The fixture body supports the first light source unit and the second light source unit in a state in which they are stored side by side along the longitudinal direction of the storage section. The terminal block is disposed at a position closer to the second light source unit than the attachment section along the longitudinal direction of the fixture body. The terminal block is electrically connected to a power source disposed outside the fixture body.

The lighting fixture disclosed herein has the advantage of improving the ease of installation.

FIG. 1 is an exploded perspective view of a lighting fixture according to an embodiment of the present disclosure. 2A is a top view of the lighting fixture, FIG 2B is a bottom view of the lighting fixture, and FIG 2C is a side view of the lighting fixture. FIG. 3 is a bottom view of the emergency light source unit in the lighting fixture. FIG. 4 is an exploded perspective view of the emergency light source unit as viewed from below. FIG. 5 is an exploded perspective view of the emergency light source unit as viewed from above. FIG. 6 is a top view of the emergency light source unit. FIG. 7 is a side view of the emergency light source unit. FIG. 8 is a side view of the emergency light source unit. FIG. 9 is a side view of the emergency light source unit. Fig. 10A is a bottom view of the above lighting fixture with a partial omission, 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 partial omission, showing a state in which a normal light source unit and an emergency light source unit are removed. FIG. 11 is a perspective view of a lighting fixture according to the first modification. FIG. 12 is a side view of a lighting fixture according to the first modification. FIG. 13 is a perspective view of a lighting fixture according to the second modification.

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.

(1. Schematic configuration of lighting fixture)
A lighting fixture 1 according to an embodiment of the present disclosure (hereinafter, abbreviated as lighting fixture 1) 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. 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 lighting fixture 1 and its components.

As shown in Figures 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.

The normal light source unit 3 is lit 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.

The emergency light source unit 4 lights up with emergency power supplied from the emergency power source, and goes out when the supply of emergency power stops. 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 receives emergency power from the emergency power source via the second power line 6. However, the second power line 6 is composed of so-called fire-resistant wire.

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 outside, and a second power supply hole 204 for introducing the second power supply line 6 from outside.

(2. Configuration of the device body)
The device 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. Each of the pair of first side plates 201 is formed in a long rectangular shape. Each of the first side plates 201 protrudes from the 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 the end (left end and right end) along the short side direction of the bottom plate 200 along the thickness direction (downward) of the bottom plate 200.

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

A first power supply hole 203 is provided in the center of the length of the bottom plate 200 (see Figures 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 underside of the bottom plate 200 (see Figure 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.

Furthermore, the bottom plate 200 has four bolt holes 205. 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, the fixture body 2 is attached to the ceiling (ceiling material) by tightening nuts onto these two mounting bolts.

A second power supply hole 204 is provided at the right end of the bottom plate 200. The second power supply hole 204 is a round hole, and is located toward the rear of the right end of the bottom plate 200 (see Figures 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 a circular ring shape from an electrically insulating material such as synthetic rubber. The bushing 206 protects the second power supply wire 6 (the coating of the wire) introduced from the second power supply hole 204 from the edge of the second power supply hole 204 in the bottom plate 200.

A pair of hook holes 207 are provided in the first side plate 201 on the front side (see FIG. 1). Each hook 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.

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

(3. Configuration of the 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 in a long rectangular shape from a metal material. The mounting member 30 has a bottom wall formed in 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 regular light source and the power supply device 34 are electrically connected by an electric wire inserted into an insertion hole provided in the bottom wall. The regular light source is turned on by receiving DC power from a power supply device 34 via an electric wire.

The translucent cover 31 is made of a translucent synthetic resin material such as acrylic resin or polycarbonate resin, and is shaped like a long box with an open top. The bottom surface of the translucent cover 31 is curved and gently protrudes downward from both ends toward the center in the short side direction (front-to-back direction). The synthetic resin material that forms the translucent cover 31 contains a diffusing material. That is, the light emitted from the regular light source is diffused as it passes through the translucent cover 31.

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 of 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 also composed 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.

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 into a pair of hooking holes 207 of the fixture body 2 and hooking the pair of hooking springs 33 one by one into a 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 translucent cover 31 is housed in the housing section 20 of the fixture body 2 and the translucent cover 31 protrudes from the opening of the housing section 20 (the underside of the housing section 20) (see FIG. 2B). Specifically, the pair of side walls 300 of the mounting member 30 and the power supply unit 34 are housed in the housing section 20.

(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.

(4-1. Configuration of emergency LED module)
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.

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 LED 400 is screwed to the underside of the heat sink 404. However, it is preferable to place a thermally conductive sheet between the LED 400 and the heat sink 404. Thus, the heat generated by the LED 400 is conducted to the heat sink 404 via the thermally conductive sheet.

The lens 402 controls the distribution of light emitted from the LED 400. The lens 402 is attached to the underside of the heat sink 404 by a lens holder 403 so as to cover the LED 400 (see FIG. 4). The lens holder 403 is fixed to the heat sink 404 by screws.

(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).

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 as a printed circuit. The first output wire 412 and the second output wire 413 each include two wires, a positive wire and a negative wire. One end of the first output wire 412 is electrically connected to the input terminal of the lighting circuit 410, and one end of the second output wire 413 is electrically connected to the 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.

The case 411 is formed in a box shape from an electrically insulating synthetic resin material. The lighting circuit 410 is housed inside the case 411 (see FIG. 4). The first outlet wire 412 is led out of the case 411 through a first opening 414 provided on the side of the case 411 (see FIG. 7). The second outlet wire 413 is led out of the case 411 through a second opening 415 also provided on the side of the case 411 (see FIG. 8).

(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 line 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.

(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).

The pair of support plates 442 protrude upward from both ends (front and rear ends) of the fixed plate 440 along 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).

The clamping 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.

The emergency LED module 40 is attached to the mounting plate 44 by screwing it to the underside of the fixing plate 440 (see Figure 4).

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 protrusion 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 relative to the mounting plate 44 by inserting each protrusion 417 of the case 411 into two vertical grooves 445 of each support plate 442. In addition, 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 support plate 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 main piece 450 presses the upper surface of the case 411 of the lighting circuit block 41 (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 Figures 7-9).

(4-5. Cover Configuration)
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).

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 underside 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 translucent cover 31 of the normal light source unit 3 (see Figures 4 and 9). A recess 4300 is formed on the underside of the cover body 430. The recess 4300 is formed in an oval shape when viewed from below (see Figure 3). A hole 4301 penetrates the center (bottom) of the recess 4300. The hole 4301 is formed in a shape (circular) that allows a part of the lens 402 of the emergency LED module 40 to be inserted therethrough.

The upper surface of the cover body 430 is provided with a number 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. The mounting plate 44 is attached to the cover body 430 by screwing the mounting plate 44 to the bosses 4302 (see FIG. 6).

The fixing portion 432 protrudes upward from the left end at the front end of the top 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 top of the fixing portion 432. Thus, the screw 4321 inserted into the screw insertion hole 4320 is screwed into a hole provided in the rear (front) surface of the housing 420, thereby fixing the housing 420 of the terminal block 42 to the rear surface of the fixing portion 432 (see FIG. 6 and FIG. 7).

Each of the pair of hooks 433 is formed in an L-shape (see Figures 7 and 8). Each hook 433 protrudes upward from both the top and bottom ends of the left end of the top surface of the cover body 430, leaving a gap between the top end of the left end of the cover body 430 and the hook 433 (see Figures 7 and 8).

The mounting piece 431 has a first protrusion 4311 that protrudes upward from the upper left end of the cover body 430, and a second protrusion 4312 that protrudes leftward from the center in the front-to-rear direction at the upper end of the first protrusion 4311 (see FIG. 5). The second protrusion 4312 also has a screw insertion hole.

(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 the fixing screw 46 inserted into the screw insertion hole of the second protruding piece 4312 into the screw hole 209 (see FIG. 1) provided in the right end portion of the bottom plate 200 of the storage section 20.

5. Modifications of the Lighting Fixture According to the Embodiment
(5-1. Modification 1)
The lighting fixture 1A according to the modified example 1 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 modified example 1 (hereinafter, abbreviated as lighting fixture 1A) is a so-called recessed type 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 common to 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.

As shown in Figs. 11 and 12, the fixture body 2A has a storage section 20A, a reflector unit 25, and a frame body 26. The storage section 20A has a configuration that is almost the same 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. In other words, the storage section 20A is formed in a long box shape. In addition, the bottom plate 200 of the storage section 20A has a first power supply hole and a second power supply hole in the same positions as the storage section 20 of the lighting fixture 1 according to the embodiment.

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 the shape of a long rectangular flat plate 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 first reflector 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 second reflector 252 is connected to the right end of the front first reflector 251. The rear end of the other second reflector 252 is connected to the right end of the rear first reflector 251. In other words, the reflector unit 25 is formed in a long rectangular pyramid shape with open top and bottom surfaces.

The frame 26 is formed in a long rectangular frame shape. The frame 26 is connected to the lower end of the reflector unit 25 (see Figures 11 and 12).

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

Here, in the device 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 of 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 preventing foreign matter such as dust from entering the storage section 20A.

(5-2. Modification 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.

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 that is almost the same as 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. The bottom plate of the storage section 20B has a first power supply hole and a second power supply hole in the same positions as the storage section 20 of the lighting fixture 1 according to the embodiment.

The pair of reflectors 28 are each formed in a long rectangular shape. Each reflector 28 protrudes from the lower ends of a pair of side panels aligned along the longitudinal direction of the storage section 20B, slanting downward and outward.

The fixture body 2B configured as described above is directly attached to the ceiling plate by attaching the housing portion 20B to a mounting bolt embedded in the ceiling plate.

6. Features of the Lighting Device According to the Embodiment
In the lighting fixture 1 (including lighting fixtures 1A and 1B of modified examples 1 and 2; the same applies below), the terminal block 42 is disposed in a position along the longitudinal direction (left-right direction) of the fixture body 2 closer to the emergency light source unit 4 than the hook hole 207 and the receiving bracket 23 (see Figs. 10A and 10B). Here, the farther the terminal block 42 is from the emergency light source unit 4, in other words, the closer the terminal block 42 is to the normal light source unit 3, the lower the workability of the installation work of the normal light source unit 3 to the fixture body 2 may be. Therefore, by bringing the terminal block 42 closer to the emergency light source unit 4, the lighting fixture 1 can improve the workability of the installation work of the normal light source unit 3 to the fixture body 2.

In addition, the lighting fixture 1 has the terminal block 42 disposed at a position near one end (near the front end) along the width direction (front-rear direction) that intersects with the longitudinal direction (left-right direction) of the storage section 20, and a space is formed behind the terminal block 42 in the storage section 20 (see Figures 6 and 10B). As a result, the lighting fixture 1 can facilitate the wiring (second power line 6) within the fixture body 2 by disposing the second power line 6 in that space.

Furthermore, by providing the terminal block 42 on the emergency light source unit 4, the lighting fixture 1 can shorten the length of the first outlet wire 412 that electrically connects the lighting circuit 410 and the terminal block 42. As a result, the lighting fixture 1 can facilitate the wiring (first outlet wire 412) within the fixture body 2.

In addition, in the lighting fixture 1, the terminal block 42 has a plurality of first plug holes 421 into which the second power supply wires 6 are inserted, and a plurality of second plug holes 422 into which the first outlet wires 412 are inserted. The terminal block 42 is arranged so that the plurality of first plug holes 421 face the second power supply hole 204 in the width direction (front-rear direction) of the storage section 20. Here, "facing the plurality of first plug holes 421 to the second power supply hole 204" means that in the width direction of the storage section 20, the front surface of the housing 420 of the terminal block 42 faces the rear of the storage section 20 where the second power supply hole 204 is provided.

By aligning the first plug holes 421 with the second power supply holes 204, the lighting fixture 1 can reduce the excess length of the second power supply wire 6 required in the storage section 20, compared to when the first plug holes 421 face downward. As a result, the lighting fixture 1 can reduce the space required to accommodate the excess length of the second power supply wire 6 in the storage section 20, and prevent the fixture body 2 from becoming larger.

Furthermore, the lighting fixture 1 is provided with a second power supply hole 204 at a location near one end (near the rear end) along the width direction (front-rear direction) that intersects with the longitudinal direction (left-right direction) of the storage section 20. Therefore, a space is created in front of the second power supply hole 204 in the storage section 20, making it easier to arrange the second power supply wire 6 in that space. As a result, the lighting fixture 1 can further facilitate the task of routing the wiring (second power supply wire 6) within the fixture body 2.

The fixture body 2 of the lighting fixture 1 is provided with a first power supply hole 203 through which the first power supply wire 5 is introduced and a second power supply hole 204 through which the second power supply wire 6 is introduced, which are provided independently. Therefore, the lighting fixture 1 can further facilitate the wiring of the first power supply wire 5 and the second power supply wire 6 within the fixture body 2, compared to a case in which the first power supply hole 203 and the second power supply hole 204 are shared by a single hole.

(7. Summary)
The lighting fixture (1; 1A; 1B) according to the first 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), a terminal block (42), and a fixture body (2; 2A; 2B). The terminal block (42) is electrically connected to the second light source unit. The fixture body (2; 2A; 2B) supports the first light source unit and the second light source unit. The fixture body (2; 2A; 2B) has a storage section (20; 20A; 20B) formed in a long box shape and an attachment section (hook hole 207, receiving metal fitting 23) provided in the storage section (20; 20A; 20B). The storage section (20; 20A; 20B) stores at least a part of each of the first light source unit and the second light source unit. The attachment section attaches the first light source unit in a detachable manner. The fixture body (2; 2A; 2B) supports the first light source unit and the second light source unit in a state of being accommodated side by side along the longitudinal direction of the accommodation section (20; 20A; 20B). The terminal block (42) is disposed at a position along the longitudinal direction of the fixture body (2; 2A; 2B) closer to the second light source unit than the attachment section.

The lighting fixture (1; 1A; 1B) according to the first aspect can improve the workability of attaching the first light source unit to the fixture body (2) by bringing the terminal block (42) closer to the second light source unit.

The lighting fixture (1; 1A; 1B) according to the second aspect of the present disclosure can be realized by combining it with the first aspect. In the lighting fixture (1; 1A; 1B) according to the second aspect, it is preferable that the terminal block (42) is disposed toward one end along the width direction intersecting with the longitudinal direction of the housing portion (20; 20A; 20B).

The lighting fixture (1; 1A; 1B) according to the second aspect can facilitate the work of routing the wiring (second power line 6) within the fixture body (2; 2A; 2B) by expanding the space around the terminal block (42) in the housing section (20; 20A; 20B).

The lighting fixture (1; 1A; 1B) according to the third aspect of the present disclosure can be realized by combining it with the first or second aspect. In the lighting fixture (1; 1A; 1B) according to the third aspect, the second light source unit preferably has a terminal block (42) to which the power line (second power line 6) is electrically connected, and a light source (emergency LED module 40). The second light source unit preferably has a lighting circuit (410) and an output wire (first output wire 412). The lighting circuit (410) lights up the light source using power supplied via the power line. The output wire electrically connects the lighting circuit (410) to the terminal block (42).

The lighting fixture (1; 1A; 1B) according to the third aspect can shorten the length of the outlet wire electrically connecting the lighting circuit (410) and the terminal block (42) by providing a terminal block (42) on the second light source unit. As a result, the lighting fixture (1; 1A; 1B) according to the third aspect can facilitate the wiring (first outlet wire 412) within the fixture body (2; 2A; 2B).

The lighting fixture (1; 1A; 1B) according to the fourth aspect of the present disclosure can be realized by combining it with the third aspect. In the lighting fixture (1; 1A; 1B) according to the fourth aspect, the housing section (20; 20A; 20B) preferably has a power hole (second power hole 204) for introducing a power line. The terminal block (42) preferably has a plurality of first insertion holes (421) into which the power line (second power line 6) is inserted, and a plurality of second insertion holes (422) into which the output line (first output line 412) is inserted. The terminal block (42) is preferably arranged so that the plurality of first insertion holes (421) face the power hole in the width direction intersecting with the longitudinal direction of the housing section (20; 20A; 20B).

The lighting fixture (1; 1A; 1B) according to the fourth aspect can reduce the excess length of the power supply wire required within the housing section (20; 20A; 20B). As a result, the lighting fixture (1; 1A; 1B) according to the fourth aspect can reduce the space required to accommodate the excess length of the wiring (second power supply wire 6) within the housing section (20; 20A; 20B), thereby preventing the device body (2; 2A; 2B) from becoming larger.

The lighting device (1; 1A; 1B) according to the fifth aspect of the present disclosure can be realized by combining it with the fourth aspect. In the lighting device (1; 1A; 1B) according to the fifth aspect, it is preferable that the power supply hole is provided in a portion of the housing section (20; 20A; 20B) near one end along the width direction.

The lighting fixture (1; 1A; 1B) according to the fifth aspect can further facilitate the work of routing the wiring (second power line 6) within the fixture body (2; 2A; 2B) by expanding the space around the power supply hole in the housing section (20; 20A; 20B).

The lighting fixture (1; 1A; 1B) according to the sixth aspect of the present disclosure can be realized by combining it with the fourth or fifth aspect. In the lighting fixture (1; 1A; 1B) according to the sixth 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.

The lighting fixture (1; 1A; 1B) according to the sixth aspect can facilitate the wiring of the first power supply wire (5) and the second power supply wire (6) within the fixture body (2; 2A; 2B) compared to a case where a single hole is used as the first power supply hole (203) and the second power supply hole (204).

1, 1A, 1B Lighting fixture 2, 2A, 2B Fixture body 3 Regular light source unit (first light source unit)
4 Emergency light source unit (second light source unit)
5 First power line 6 Second power line (power line)
20, 20A, 20B: Storage section 23: Receiving bracket (mounting section)
40 Emergency LED module (light source)
42 Terminal block 203 First power hole 204 Second power hole (power hole)
207 Hook hole (mounting part)
410 Lighting circuit 412 First output wire (output wire)
421 First insertion hole 422 Second insertion hole

Claims (4)

A first light source unit;
A second light source unit;
A terminal block electrically connected to the second light source unit;
A fixture body supporting the first light source unit and the second light source unit;
Equipped with
The device body has a storage section formed in a long box shape and configured to store at least a part of each of the first light source unit and the second light source unit, and an attachment section provided in the storage section and configured to detachably attach the first light source unit,
The fixture body supports the first light source unit and the second light source unit in a state in which the first light source unit and the second light source unit are accommodated side by side along a longitudinal direction of the accommodation portion,
The terminal block is disposed at a position closer to the second light source unit than the mounting portion along the longitudinal direction of the fixture body, and is electrically connected to a power source disposed outside the fixture body.
Lighting fixtures. The terminal block is electrically connected to the power source which is an emergency power source.
2. The lighting device of claim 1. the housing portion has a power supply hole through which a power supply line for electrically connecting the power supply and the terminal block is introduced,
The power supply hole is provided in a portion of the housing portion toward one end along a width direction intersecting with a longitudinal direction of the housing portion.
3. A lighting fixture according to claim 1 or 2. The housing portion has a first power supply hole through which a first power supply line for supplying normal power to the first light source unit is introduced, and a second power supply hole through which a second power supply line for supplying emergency power to the second light source unit is introduced.
A lighting fixture according to any one of claims 1 to 3.

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