Luminaire

Abstract

To provide a luminaire that can improve workability.SOLUTION: A luminaire 10 comprises a light source unit 12, a cover, and an appliance body 23 capable of being mounted on an installation surface while being fitted with either the light source unit 12 or the cover.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] Embodiments of the present invention relate to a lighting fixture attached to an installation surface.

Background Art

[0002] Conventionally, in a lighting fixture in which a light source unit is arranged on the front side of the fixture body, during construction, the light source unit is removed from the fixture body, the fixture body is installed on the installation surface, and then, the fixture body side and the light source unit side are electrically connected, and the light source unit is attached to the fixture body.

[0003] As described above, during the construction of the lighting fixture, since it is necessary to remove the light source unit from the fixture body, after installing the fixture body on the installation surface, the light source unit must be electrically connected to the fixture body side and then attached to the fixture body, making the construction work complicated.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a lighting fixture capable of improving workability.

Means for Solving the Problems

[0006] The lighting fixture according to the embodiment includes a long - shaped fixture body having a back surface, a cover attached to one end side in the short - hand direction of the fixture body and spaced apart from the back surface, the cover having an inclined surface that inclines toward the back surface on the other end side in the short - hand direction, and a long - shaped light source unit detachably attached along the inclined surface on the front side spaced apart from the back surface on the other end side in the short - hand direction of the fixture body.

Effects of the Invention

[0007] According to the lighting fixture of the embodiment, improvement in workability can be expected.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Mode for Carrying Out the Invention

[0009] Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 12.

[0010] Illumination device 10 is shown in FIGS. 1 to 4. This illumination device 10 is installed, for example, on an installation surface such as a wall surface or a ceiling surface of a staircase landing, and is used to illuminate the staircase and the landing. Further, this illumination device 10 is an emergency lighting device that performs dimming control in response to detection of a person moving on the staircase and lights up with an emergency power source when the normal power supply fails.

[0011] Note that FIG. 1 shows a state where the illumination device 10 is attached to the wall surface, and FIG. 4 shows a state where the illumination device 10 is attached to the ceiling surface. Hereinafter, the state where the illumination device 10 is attached to the wall surface will be mainly described.

[0012] The illumination device 10 is provided in a long shape along the width direction. The illumination device 10 includes a housing 11, a light source unit 12 and an emergency lamp unit 13 which are main light sources or normal light sources arranged on the front side of the housing 11 (appliance body 23), a terminal block 14, a power supply unit 15, a human sensor 16, a sensor control unit 17, an emergency lighting unit 18 as a device, a battery 19, etc. arranged in the housing 11 (appliance body 23).

[0013] The housing 11 includes an appliance body 23 and a cover 24 detachably attached to the front surface of the appliance body 23. An inclined surface 25 that inclines toward one side in the short side direction is formed on the front surface of the housing 11. The angle formed by the inclined surface 25 and the installation surface (the back surface portion 27 of the appliance body 23) is, for example, 30°.

[0014] The appliance body 23 has an open front side and is formed in a long shape along the width direction. The appliance body 23 has a back surface portion 27 which is an attachment surface attached to an installation surface such as a wall surface or a ceiling surface, upper and lower side surface portions 28, 29 bent forward from both sides in the short side direction of the back surface portion 27, and end surface portions 30 at both ends in the longitudinal direction.

[0015] The light source unit 12 and the emergency light unit 13 are arranged in the lower region on the front side of the appliance body 23 in the short side direction, and a front opening 31 that is opened and closed by a cover 24 is formed in the upper region on the other side.

[0016] On the back surface portion 27, a wiring hole 32 for drawing an external power supply line drawn out from the installation surface into the appliance body 23 and a mounting portion 33 for mounting the appliance body 23 on the installation surface are provided. The mounting portion 33 is attached to a bolt protruding from the installation surface and has mounting holes 34 and 35 provided on both end sides in the longitudinal direction of the back surface portion 27. Then, by passing the bolts through the mounting holes 34 and 35 and screwing and tightening nuts onto the tips of the bolts, the appliance body 23 is attached to the installation surface. One of the mounting holes 34 is formed in an elongated hole shape that is long in the longitudinal direction of the appliance body 23, and the other mounting hole 35 is formed in a funnel hole shape that is long in the longitudinal direction of the appliance body 23.

[0017] With the light source unit 12 attached, a space is formed between the appliance main body 23 and the light source unit 12 that allows for construction work to be carried out on the mounting part 33 and other components from the outside. That is, on the appliance main body 23, in a position where the cover 24 is removed and exposed with the light source unit 12 and the emergency light unit 13 attached to the appliance main body 23, the wiring hole 32 and the mounting part 33 are arranged, and the terminal block 14, the power supply unit 15, the human presence sensor 16, the sensor control unit 17, the emergency lighting unit 18, and the battery 19 are arranged. That is, as shown in FIG. 5, when looking at the appliance main body 23 from the front, the wiring hole 32 and the mounting part 33 are arranged in a position not covered by the light source unit 12 and the emergency light unit 13 and in a position where work can be carried out from the front opening 31 of the appliance main body 23, and the terminal block 14, the power supply unit 15, the human presence sensor 16, the sensor control unit 17, the emergency lighting unit 18, and the battery 19 are arranged. Further, the human presence sensor 16 is arranged at the center in the longitudinal direction of the appliance main body 23, the terminal block 14, the power supply unit 15, and the battery 19 are arranged on the left side, which is one end side from the center in the longitudinal direction, and the emergency lighting unit 18, the sensor control unit 17, and the battery 19 are arranged on the right side, which is the other end side from the center in the longitudinal direction. Note that the battery 19 may be mounted on either the left or right side of the appliance main body 23 as required.

[0018] In the vicinity of both ends inside the appliance main body 23 and in the lower region, which is one side in the short-side direction, a pair of mounting bases 36 for attaching the light source unit 12 and the emergency light unit 13 are attached. The front surface of the mounting base 36 is provided in an inclined shape corresponding to the inclined surface 25 of the front surface of the housing 11. A spring receiver 37 for attaching the light source unit 12 is attached to the front surface of the mounting base 36.

[0019] A pair of mounting bases 36 are arranged at intervals in the longitudinal direction of the appliance main body 23. As shown in FIG. 6, a wiring space 38 communicating with the inside of the appliance main body 23 is formed between the pair of mounting bases 36 and the back side of the light source unit 12 attached to the pair of mounting bases 36. That is, the light source unit 12 is attached to the pair of mounting bases 36 so as to be separated from the back surface of the appliance main body 23, and the space formed on the back side of the light source unit 12 communicates with the space formed between the back surface of the appliance main body 23 and the cover 24.

[0020] Further, the cover 24 has a front surface portion 40 and a side surface portion 41 bent from the front surface portion 40. The cover 24 covers the front opening 31 of the appliance main body 23 with the front surface portion 40, and the side surface portion 41 is arranged so as to overlap the upper side surface portion 28 of the appliance main body 23 and is detachably attached to the side surface portion 28 by screws or the like.

[0021] An inclined surface 25 on the front surface of the housing 11 is formed on the front surface portion 40 of the cover 24. This inclined surface 25 also functions as a reflecting surface for reflecting the light of the light source unit 12. The front end side of the side surface portion 41 of the cover 24 is inclined toward the front surface portion 40, but it does not have to be inclined.

[0022] A sensor hole 42 for arranging the human sensor 16 and an inspection window 43 facing the emergency lighting unit 18 are formed at the center of the front surface portion 40 of the cover 24.

[0023] Next, the light source unit 12 is provided in a long shape along the width direction of the lighting fixture 10. As shown in FIG. 7, the light source unit 12 includes a chassis 47, a light emitting module 48 attached to the front surface of the chassis 47, a translucent cover 49 covering the light emitting module 48 and attached to the chassis 47, and a pair of mounting springs 50 for attaching the light source unit 12 to the appliance main body 23.

[0024] The light-emitting module 48 includes a long substrate 52 and a light-emitting element (semiconductor light-emitting element), not shown, mounted on the surface of the substrate 52. For example, a surface-mount type LED is used as the light-emitting element, and a plurality of light-emitting elements are mounted in one row or multiple rows along the longitudinal direction of the substrate 52. Note that the light-emitting element is not limited to an LED, and other elements such as an organic EL may be used. The light-emitting module 48 is electrically connected to the power supply unit 15 by connection wiring when the light source unit 12 is attached to the instrument body 23.

[0025] The light source unit 12 is attached in parallel with the inclined surface 25 on the front surface of the housing 11, that is, it is attached in a state inclined with respect to the back surface portion 27 attached to the installation surface.

[0026] The light-transmitting cover 49 is made of resin having light-transmitting properties and light-diffusing properties, and a cross-section intersecting the longitudinal direction is formed in a convex curved shape.

[0027] The mounting spring 50 is attached near both longitudinal ends on the back surface of the chassis 47. With the mounting spring 50 engaged with the spring receiver 37 of the mounting base 36 to which the instrument body 23 is attached, the light source unit 12 is pulled toward the mounting base 36 by the elastic force of the mounting spring 50, and the light source unit 12 is engaged with the pair of mounting bases 36 and attached to the instrument body 23. Also, by pulling the light source unit 12 away from the instrument body 23 against the elastic force of the mounting spring 50 and removing the mounting spring 50 from the spring receiver 37, the light source unit 12 can be removed from the instrument body 23. And the light source unit 12 is attached to the lower region, which is one of the short sides on the front surface of the instrument body 23, and is inclined so that the optical axis direction is perpendicular to the inclined surface 25 on the front surface of the housing 11 and faces obliquely downward.

[0028] Also, the emergency lamp unit 13 is attached to the front surface of the instrument body 23 at positions arranged on both sides in the longitudinal direction of the light source unit 12. As shown in FIG. 8, the emergency lamp unit 13 includes an emergency light source 56, and a front frame 57 which is an emergency light source cover and a decorative frame to which the emergency light source 56 is attached.

[0029] The non-regular light source 56 includes a light emitting portion 59 and a lens 62 that controls the light distribution of the light from the light emitting portion 59.

[0030] The light emitting portion 59 uses a light emitting element (semiconductor light emitting element) such as an LED. For example, the light emitting portion 59 uses a COB module in which a plurality of LED chips are mounted on a substrate and these LED chips are covered with a sealing member containing a phosphor. The light emitting portion 59 is mounted on an annular socket 60 and is attached in a state of being in close contact with the front surface of a heat sink 61 by the socket 60. The heat sink 61 is attached to the back side of the front frame 57, and engaging claws (not shown) that engage with and are attached to the end surface portion 30 of the appliance main body 23 project from the ends.

[0031] The lens 62 is made of, for example, glass. The lens 62 has a lens portion 63 and an edge portion 64 that projects from the periphery of the lens portion 63. The inner surface of the lens portion 63 facing the light emitting portion 59 is provided in a concave shape, and the opposite outer surface is provided in a convex shape. The lens portion 63 projects forward from the front frame 57.

[0032] The lens 62 is formed in a non-regular shape to obtain a desired light distribution. The center of the light emitting portion 59 is located on the central axis along the longitudinal direction of the light source unit 12, but the center of the lens 62 is not located on the central axis along the longitudinal direction of the light source unit 12. FIG. 9(a) shows a light distribution diagram by the lens 62 when the lighting fixture 10 is mounted on a wall surface, and FIG. 9(b) shows a light distribution diagram by the lens 62 when the lighting fixture 10 is mounted on a ceiling surface. A shown in FIGS. 9(a) and 9(b) is the optical axis direction of the light emitting portion 59 perpendicular to the light emitting surface of the light emitting portion 59. By the lens 62, in the case of wall surface mounting shown in FIG. 9(a), the light distribution has a peak in the forward direction, and in the case of ceiling surface mounting shown in FIG. 9(b), the light distribution has a peak in the downward direction, so that light distribution characteristics suitable for any mounting position can be obtained.

[0033] The front frame 57 is made of metal or a non-combustible material. The front frame 57 has a covering portion 66 that covers the emergency light source 56, a mounting plate portion 67 (see FIG. 3) that protrudes from one end side of the covering portion 66 and is attached to the front surface of the mounting base 36, and a partition portion 68 that is disposed between the light source unit 12 and the emergency light source 56 and protrudes more than the emergency light source 56.

[0034] At the center of the covering portion 66, an opening 69 is provided through which the lens portion 63 of the lens 62 protrudes. A tapered portion 70 is provided at the edge of the opening 69 so as to expand forward corresponding to at least a region where the partition portion 68 is not present. In the present embodiment, the tapered portion 70 is provided around the entire circumference of the edge of the opening 69. The inclination angle of the tapered portion 70 is set to an angle that expands and inclines toward the wall surface side rather than the directly downward direction when the lighting fixture 10 is mounted on the wall surface, and is set to an angle that expands and inclines upward rather than the horizontal direction when the lighting fixture 10 is mounted on the ceiling surface.

[0035] The partition portion 68 is disposed between the light source unit 12 and the translucent cover 49 of the light source unit 12. The partition portion 68 protrudes higher than the translucent cover 49 and the lens 62 of the light source unit 12, and separates the translucent cover 49 and the lens 62 of the light source unit 12. On the surface of the partition portion 68 facing the lens 62 side, an inclined reflecting surface 71 is formed so as to expand forward from the front surface of the covering portion 66.

[0036] The partition portion 68 is provided only on one side of the covering portion 66 facing the light source unit 12 between the emergency light source 56 and the light source unit 12, and is not provided on the other three sides of the covering portion 66. Therefore, a flat portion 72 that is lower than the tip of the emergency light source 56 is formed between the emergency light source 56 and the end of the fixture body 23. This flat portion 72 is constituted by the front surface of the covering portion 66 of the front frame 57. Due to this flat portion 72, there is no light-shielding object between the emergency light source 56 and the end of the fixture body 23, and the light from the emergency light source 56 is irradiated toward the end of the fixture body 23.

[0037] Further, the terminal block 14 is attached to the back surface portion 27 of the appliance body 23. An external power supply line drawn into the appliance body 23 from the wiring hole 32 is connected to the terminal block 14. The terminal block 14 is electrically connected to the power supply unit 15, the sensor control unit 17, and the emergency lighting unit 18 by internal wiring which is an electric wire. In the case where there are many power supply locations by internal wiring, an internal wiring terminal block 14a may be used as a part of the terminal block 14. Since this internal wiring terminal block 14a is not used for connecting the external power supply line, it may be arranged on the appliance body 23 on the back side of the light source unit 12, or may be arranged at a position where it is exposed when the cover 24 is removed in a state where the light source unit 12 and the emergency light unit 13 are attached to the appliance body 23.

[0038] Also, the power supply unit 15 is attached to the back surface portion 27 of the appliance body 23. The power supply unit 15 has an external power supply input portion on the primary side electrically connected to the terminal block 14 by internal wiring, and a lighting power supply output side on the secondary side electrically connected to the light source unit 12 by connection wiring. The connection wiring is detachable from the light source unit 12 by connector connection.

[0039] The power supply unit 15 converts an external power supply such as an AC power supply supplied through the terminal block 14 into a lighting power supply such as a DC power supply for lighting the light emitting element of the light emitting module 48, and supplies it to the light emitting module 48 of the light source unit 12. For example, the power supply unit 15 includes a rectifying circuit that rectifies an AC voltage supplied from an AC power supply which is an external power supply, a power factor improvement circuit such as a boost chopper circuit that converts the AC voltage rectified by this rectifying circuit into a DC voltage, and a drive circuit such as a buck chopper circuit that converts the DC voltage from this power factor improvement circuit into a predetermined DC voltage to be supplied to the light emitting element. The drive circuit has a switching element, and controls the current supplied to the light emitting element by the switching operation of this switching element to dim each light emitting element. The switching operation of the switching element is controlled according to a control signal such as a dimming signal input from the sensor control unit 17.

[0040] In addition, the human presence sensor 16 is, for example, of the radio wave type, transmits and receives detection radio waves from the sensor surface 16a at the front, and detects the presence of a person moving in the front area of the lighting fixture 10. As shown in FIG. 10, the human presence sensor 16 is attached to the upper side surface portion 28 of the fixture main body 23 by a support member 75. The support member 75 obliquely supports the human presence sensor 16 such that the sensor surface 16a faces downward at an angle of, for example, 30° corresponding to the inclination of the inclined surface 25 on the front surface of the housing 11. The front end side of the human presence sensor 16 protrudes forward from the sensor hole 42 of the cover 24. The human presence sensor 16 is located at the center in the longitudinal direction of the fixture main body 23 and overlaps with the wiring hole 32 provided in the back surface portion 27 of the fixture main body 23. However, by being attached to the upper side surface portion 28 instead of the back surface portion 27 of the fixture main body 23 by the support member 75, it is separated from the wiring hole 32 and is configured not to interfere with the external power supply line drawn from the wiring hole 32.

[0041] In addition, the sensor control unit 17 is attached to the back surface portion 27 of the fixture main body 23. The sensor control unit 17 is electrically connected to the terminal block 14 by internal wiring and operates by receiving the supply of external power. The sensor control unit 17 is electrically connected to the human presence sensor 16 by internal wiring, controls the human presence sensor 16 to detect the presence of a person. The sensor control unit 17 is electrically connected to the power supply unit 15 by internal wiring, and sends a control signal such as a dimming signal according to the detection of the presence of a person by the human presence sensor 16 to the power supply unit 15.

[0042] In addition, the emergency lighting unit 18 is electrically connected to the terminal block 14 by internal wiring, operates by receiving the supply of external power, and is also electrically connected to the battery 19 by internal wiring to control the charging and discharging of the battery 19.

[0043] The emergency lighting unit 18 includes, for example, a resin case 78, and circuits housed in this case 78, that is, a power failure detection circuit that detects a power failure of an external power source, a charging circuit that charges the battery 19 when the external power source is supplied, an emergency lighting circuit that supplies a lighting power source to the emergency light source 56 by the power of the battery 19 when the external power source fails, and the like. Further, the emergency lighting unit 18 includes an inspection unit 79 provided on the front surface of the case 78 for instructing an inspection of emergency lighting including the emergency light source 56 and the battery 19, and an inspection circuit that executes an inspection mode according to this inspection instruction, and the like.

[0044] The inspection unit 79 is disposed to face the inspection window 43 of the cover 24 of the appliance main body 23, and includes a receiving unit that receives a wireless signal such as an infrared signal transmitted from a terminal such as an inspection remote control, a transmitting unit that transmits an inspection result to the terminal, an inspection switch for instructing an inspection by manual operation, a monitor lamp that displays an inspection result, and the like.

[0045] As shown in FIGS. 7 and 10, the emergency lighting unit 18 is attached to the upper side surface portion 28 of the appliance main body 23 by a support member 81. The support member 81 supports the emergency lighting unit 18 obliquely with respect to the back surface portion 27 of the appliance main body 23 so that the front inspection unit 79 faces downward, for example, 30°, corresponding to the inclination of the inclined surface 25 on the front surface of the housing 11. The support member 81 has a support plate portion 82 for attaching the emergency lighting unit 18, and attachment plate portions 83 that are bent from both sides of the support plate portion 82 and attached to the upper side surface portion 28 of the appliance main body 23 by screwing or the like. The attachment plate portion 83 is bent from a region on the rear side of the support plate portion 82, and the region on the front side of the support plate portion 82 is open. The inspection unit 79 of the emergency lighting unit 18 obliquely supported by the support member 81 faces the inspection window 43 provided on the inclined surface 25 of the cover 24 (housing 11).

[0046] The support member 81 supports the emergency lighting unit 18 so as to form three wiring areas 84 between the emergency lighting unit 18 and the housing 11. That is, the wiring areas 84 include a first wiring area 84a between the emergency lighting unit 18 and the first surface portion 11a of the housing 11, a second wiring area 84b between the emergency lighting unit 18 and the second surface portion 11b of the housing 11, and a third wiring area 84c surrounded by the first surface portion 11a, the second surface portion 11b of the housing 11, and the emergency lighting unit 18. The first surface portion 11a of the housing 11 is the rear surface portion 27 of the appliance main body 23, the second surface portion 11b includes the side surface portion 28 of the appliance main body 23 and the side surface portion 41 of the cover 24, and the second surface portion 11b protrudes forward with respect to the first surface portion 11a.

[0047] FIG. 11 shows a partial wiring diagram of the lighting fixture 10. Inside the wiring area 84 formed by the emergency lighting unit 18, internal wiring is laid to connect between a first electrical unit E1 and a second electrical unit E2 arranged on both sides of the emergency lighting unit 18. The first electrical unit E1 includes a terminal block 14, a power supply unit 15, and a human sensor 16, and the second electrical unit E2 includes a sensor control unit 17.

[0048] In the three wiring areas 84 formed by the emergency lighting unit 18, the power line AC and the signal line S among the internal wirings are separated and wired so as not to come into contact with each other. For example, a power line AC1 that electrically connects the terminal block 14 and the emergency lighting unit 18 is wired in the first wiring area 84a, a power line AC2 that electrically connects the terminal block 14 and the sensor control unit 17 is wired in the second wiring area 84b, and a signal line S that electrically connects the sensor control unit is wired in the third wiring area 84c. Note that the power line AC and the signal line S may be wired in any wiring area 84 as long as they are separated and do not overlap. For example, if the signal line S is wired in the second wiring area 84b or the third wiring area 84c, and a plurality of power lines AC are wired in the first wiring area 84a, it becomes possible to wire without considering the contact of the plurality of power lines AC, and the wiring work is reduced. Also, if the signal line S is wired in the third wiring area 84c and the power line AC that is easily affected by noise among the plurality of power lines AC is wired in the second wiring area 84b, it becomes possible to separate and wire the power line AC that is easily affected by noise.

[0049] Also, the battery 19 is a rechargeable battery. The battery 19 uses two battery packs, is arranged on both end sides in the longitudinal direction of the instrument body 23, and is electrically connected to the emergency lighting unit 18 by internal wiring.

[0050] The battery 19 is attached to the instrument body 23 by the mounting bracket 87. As shown in FIGS. 2 and 12, the mounting bracket 87 is formed in a frame shape by a single metal plate, and has a front frame portion 88, end frame portions 89 at both ends, and a side frame portion 90 facing the upper side plate portion of the instrument body. A substantially L-shaped locking piece portion 91 protrudes from the tip of one end frame portion 89. One end side of the mounting bracket 87 has the locking piece portion 91 penetrating through the back surface portion 27 of the instrument body 23 and engaging with the outer surface, and the other end side of the mounting bracket 87 is attached to the back surface portion 27 of the instrument body 23 by a screw 92. The mounting bracket 87 can be rotated around the engagement portion of the locking piece portion 91 penetrating through the back surface portion 27 of the instrument body 23 with the screw 92 removed, enabling the replacement of the battery 19. Inside the instrument body 23, a space allowing the mounting bracket 87 to be opened and rotated is provided on the side portion in the opening and rotation direction of the mounting bracket 87. When the battery 19 is mounted on either the left or right side of the instrument body 23 as required, only one mounting bracket 87 may be used.

[0051] When installing the lighting fixture 10 on the installation surface, remove the cover 24 from the instrument body 23 and open the front opening 31 of the instrument body 23.

[0052] Pass the external power line protruding from the installation surface through the wiring hole 32 into the instrument body 23 through the front opening 31 of the instrument body 23.

[0053] Pass two bolts protruding from the installation surface through two mounting holes 34, 35 on the back surface portion 27 of the instrument body 23 through the front opening 31 of the instrument body 23, screw nuts onto the tips of the bolts and tighten them to attach the back surface portion 27 of the instrument body 23 to the installation surface. When attaching the instrument body 23 to the ceiling surface, with the nut lightly screwed onto the tip of one bolt, pass the bolt and nut through the round hole-shaped mounting hole 35 on one end side of the instrument body 23, move the instrument body 23 to one end side in the longitudinal direction, and temporarily fix one end side of the instrument body 23 to one bolt, whereby the attachment operation of the instrument body 23 to the ceiling surface can be performed well.

[0054] Connect the external power supply line passed through the wiring hole 32 into the appliance body 23 to the terminal block 14 through the front opening 31 of the appliance body 23.

[0055] Attach the cover 24 to the appliance body 23. In this way, the lighting fixture 10 is installed on the installation surface such as the wall surface or ceiling of the landing of the staircase.

[0056] When the external power supply is normally supplied to the lighting fixture 10, the power supply unit 15 converts the external power supply into a predetermined lighting power supply and supplies it to the light source unit 12. As a result, the light source unit 12 lights up to illuminate the staircase and the landing.

[0057] When the lighting fixture 10 is mounted on the wall, since the light source unit 12 is arranged on the lower side of the appliance body 23 and is inclined obliquely downward, light is also irradiated onto the lower side of the wall surface where the lighting fixture 10 is installed, the floor surface of the landing, etc., and there is an effect of brightening the vicinity of the feet on the landing.

[0058] Also, normally, the sensor control unit 17 monitors the presence or absence of detection of a person by the human sensor 16, controls the power supply unit 15 according to the detection of a person, and automatically controls the brightness of the light source unit 12. When the human sensor 16 does not detect a person, the sensor control unit 17 turns off the light source unit 12 or dims the light output to be low to save energy. On the other hand, when the human sensor 16 detects a person, the sensor control unit 17 turns on the light source unit 12 or dims the light output to be high.

[0059] Also, normally, the emergency lighting unit 18 detects the supply of the external power supply and charges the battery 19 with this external power supply. At this time, the emergency light source 56 is turned off.

[0060] When a power outage occurs and the supply of external power to the lighting fixture 10 stops, the emergency lighting unit 18 detects the power outage of the external power supply, converts the power of the battery 19 into a predetermined lighting power supply, and supplies it to the emergency light source 56. As a result, during a power outage, the light source unit 12 turns off, but the emergency light source 56 turns on to illuminate the stairs and the dance floor.

[0061] When the lighting fixture 10 is mounted on the wall surface, since the emergency light source 56 is arranged on the lower side of the fixture body 23 and is inclined obliquely downward, light is also irradiated on the lower side of the wall surface where the lighting fixture 10 is installed, the floor surface of the dance floor, etc., and there is an effect of brightening the vicinity of the feet on the stairs and the dance floor.

[0062] Furthermore, when the lighting fixture 10 is mounted on the wall surface, the lens 62 of the emergency light source 56 provides a light distribution having a peak in the forward direction, and there is an effect of brightening the area on the staircase side away from the lighting fixture 10. Also, when the lighting fixture 10 is mounted on the ceiling surface, the lens 62 of the emergency light source 56 provides a light distribution having a peak in the downward direction, and there is an effect of brightening the vicinity of the feet on the stairs and the dance floor.

[0063] Furthermore, a tapered portion 70 that expands forward is provided in at least a region where there is no partition portion 68 at the edge of the opening 69 of the front frame 57 where the lens 62 of the emergency light source 56 is arranged, so that the light from the lens 62 is irradiated over a wide range. For example, when the lighting fixture 10 is mounted on the wall surface, there is an effect that the wall surface becomes brighter as light is irradiated to the wall surface side rather than the directly downward direction, and when the lighting fixture 10 is mounted on the ceiling surface, there is an effect that the stairs become brighter as light is irradiated above the horizontal direction.

[0064] Also, since the emergency light source 56 is arranged at two locations on both end sides of the fixture body 23, the staircase side connecting the dance floor and the upper floor, and the staircase side connecting the dance floor and the lower floor can be appropriately illuminated respectively.

[0065] In addition, for the lighting fixture 10, it is periodically inspected whether the emergency light source 56 can operate normally with the power supply of the battery 19. When inspecting the lighting fixture 10, an operator operates a terminal below the lighting fixture 10 to be inspected and transmits an inspection signal toward the inspection unit 79 of the lighting fixture 10. When the emergency lighting unit 18 receives the inspection signal from the terminal at the inspection unit 79, it enters the inspection mode, lights the emergency light source 56 with the power supply of the battery 19, or determines the life of the battery 19. The inspection operation and the inspection result are displayed on the monitor lamp of the inspection unit 79. After the inspection is completed, a signal of the inspection result is transmitted from the inspection unit 79 toward the terminal. Then, the operator visually checks the lighting state of the emergency light source 56 and the monitor lamp, and also checks the inspection result received by the terminal to grasp the state of the lighting fixture 10.

[0066] If the life or abnormality of the battery 19 is confirmed as a result of the inspection, the battery 19 is replaced. When replacing the battery 19, first, remove the cover 24 from the fixture body 23, open the front opening 31 of the fixture body 23 to expose the battery 19 and the mounting bracket 87. Subsequently, remove the screw 92 that fixes the mounting bracket 87 to the fixture body 23, pivot the mounting bracket 87 in an open direction with the locking piece portion 91 side as a fulcrum, and remove the battery 19 from the inside of the mounting bracket 87. Subsequently, place a new battery 19 inside the mounting bracket 87, pivot the mounting bracket 87 toward the back surface portion 27 of the fixture body 23 with the locking piece portion 91 side as a fulcrum, and attach the mounting bracket 87 to the fixture body 23 with the screw 92. At this time, since the mounting bracket 87 is pivotally connected to the fixture body 23 with the locking piece portion 91 side as a fulcrum, the battery 19 can be replaced simply by attaching and detaching one screw 92 to and from the fixture body 23, and the replacement work can be facilitated.

[0067] And according to the lighting fixture 10 configured in this way, since the fixture body 23 can be installed on the installation surface with the light source unit 12 attached, it is not necessary to remove the light source unit 12 during construction, and the workability can be improved.

[0068] Since the instrument body 23 has a space that can be constructed from the outside with respect to the mounting portion 33 between the instrument body 23 and the light source unit 12 with the light source unit 12 attached, the instrument body 23 can be installed on the installation surface with the light source unit 12 attached.

[0069] The instrument body 23 has a mounting portion 33 for attachment to the installation surface at a position where the cover 24 is removed and exposed with the light source unit 12 attached to the instrument body 23. Therefore, the instrument body 23 can be installed on the installation surface with the light source unit 12 attached.

[0070] The light source unit 12 is attached to the pair of mounting bases 36 so as to be separated from the back surface of the instrument body 23, and the space formed on the back side of the light source unit 12 communicates with the space formed between the back surface of the instrument body 23 and the cover 24. Therefore, the back side of the light source unit 12 can be used as the wiring space 38.

[0071] The battery 19 is disposed in the instrument body 23 so as to be replaceable at a position where the cover 24 is removed and exposed with the light source unit 12 attached to the instrument body 23. Therefore, it is not necessary to remove the light source unit 12 when replacing the battery 19, and the replaceability of the battery 19 can be improved.

[0072] In addition, since the emergency lighting unit 18 is supported by the support member 81 so as to form three wiring regions 84 between the emergency lighting unit 18 and the housing 11, the internal wiring, which is the electric wire wired in the housing 11, can be easily aligned by utilizing the three wiring regions 84. Moreover, since the emergency lighting unit 18 serves as a partition, it is possible to prevent the electric wires wired in the vicinity of the emergency lighting unit 18 from contacting each other.

[0073] When the housing 11 has a first face portion 11a and a second face portion 11b protruding with respect to this first face portion 11a, three wiring regions 84 can be formed: a first wiring region 84a between the emergency lighting unit 18 and the first face portion 11a of the housing 11, a second wiring region 84b between the emergency lighting unit 18 and the second face portion 11b of the housing 11, and a third wiring region 84c surrounded by the emergency lighting unit 18, the first face portion 11a, and the second face portion 11b of the housing 11.

[0074] When the emergency lighting unit 18 is arranged between a terminal block 14 or a power supply unit 15 which is a first electric unit E1 and a sensor control unit 17 which is a second electric unit E2, the power line AC and the signal line S among the internal wirings wired across between the first electric unit E1 and the second electric unit E2 can be separated and wired so as not to come into contact in the three wiring regions 84 formed by the emergency lighting unit 18, and it is possible to prevent the occurrence of effects such as noise due to the contact between the power line AC and the signal line S.

[0075] Since the emergency lighting unit 18 is supported obliquely with respect to the first face portion 11a of the housing 11 by the support member 81, the inspection portion 79 can be directed obliquely forward, and the inspection operation and the inspection confirmation can be easily performed.

[0076] Note that the device supported by the support member 81 so as to form the three wiring regions 84 is not limited to the emergency lighting unit 18, and other devices such as a human sensor 16 may be used.

[0077] Also, since the emergency lamp unit 13 has a partition wall portion 68 arranged between the light source unit 12 and the emergency light source 56, even if the light-transmitting cover 49 of the light source unit 12 may burn out in an emergency, the emergency light source 56 can be protected by each wall portion 68, and the emergency light source 56 can be surely operated.

[0078] Since a flat portion 72 lower than the tip of the emergency light source 56 is formed between the emergency light source 56 and the end of the fixture body 23, there is no light-shielding object between the emergency light source 56 and the end of the fixture body 23, and the light from the emergency light source 56 can be irradiated toward the end of the fixture body 23, making the side area of the luminaire 10 brighter.

[0079] Since a tapered portion 70 that expands forward is provided in at least a region where there is no partition portion 68 at the edge of the opening 69 of the front frame 57 where the lens 62 of the emergency light source 56 is disposed, the light from the lens 62 can be irradiated over a wide range. For example, when the luminaire 10 is wall-mounted, there is an effect that the wall surface is illuminated and brightened by the light being irradiated toward the wall surface rather than in the directly downward direction. Also, when the luminaire 10 is ceiling-mounted, there is an effect that the stairs are illuminated and brightened by the light being irradiated upward rather than in the horizontal direction.

[0080] Next, a second embodiment will be described with reference to FIGS. 13 to 14.

[0081] In the second embodiment, compared with the first embodiment, while sharing some components, the length in the longitudinal direction of the luminaire 10, that is, the lengths of the housing 11 and the light source unit 12 are configured to be shorter.

[0082] One of the components used in common is a pair of mounting bases 36. In this case, one spring receiver 37 is attached to one mounting base 36, but the other spring receiver 37 is not attached to the other mounting base 36, and the other spring receiver 37 is attached to the front frame 57 side of the emergency lamp unit 13. This is because when the distance between the pair of mounting springs 50 of the light source unit 12 is determined, the other spring receiver 37 is attached to the front frame 57 side of the emergency lamp unit 13 instead of the mounting base 36 in accordance with that distance. By configuring in this way, the pair of mounting bases 36 can be shared.

[0083] Incidentally, the emergency light source 56 may be provided at one location in the center of the width direction of the fixture body 23, or may be disposed below the light source unit 12. When the emergency light source 56 is disposed close to the lower side of the light source unit 12, a partition portion 68 may be disposed between the emergency light source 56 and the light source unit 12.

[0084] Incidentally, even with the cover 24 attached to the fixture body 23, it may be configured to be installable on the installation surface. That is, the fixture body 23 may have a space that allows for installation on the attachment portion 33 from the outside between the fixture body 23 and the cover 24 in a state where the cover 24 is attached. Further, the fixture body 23 may have an attachment portion 33 for attachment to the installation surface at a position where the light source unit 12 is removed and exposed with the cover 24 attached to the fixture body 23. Then, the fixture body 23 with the cover 24 attached can be installed on the installation surface.

[0085] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.

Description of Reference Numerals

[0086] 10 Lighting fixture 12 Light source unit 19 Battery 23 Fixture body 24 Cover 33 Attachment portion 36 Mounting base 56 Emergency light source

Claims

1. A long-shaped instrument body having a back surface portion; A cover that is attached to one end side in the short direction of the instrument body, on the front side spaced apart from the back surface portion, and has an inclined surface that inclines toward the back surface portion on the other end side in the short direction; A long-shaped light source unit that is attached to the other end side in the short direction of the instrument body, on the front side spaced apart from the back surface portion, and is detachably attached along the inclined surface; An illumination device comprising the above.

2. An emergency light source that is attached along the inclined surface at both ends in the longitudinal direction of the light source unit The illumination device according to claim 1, comprising the above.

3. A lighting unit that has a receiving unit for receiving a signal transmitted from an external terminal and an inspection switch, and is attached along the inclined surface The illumination device according to claim 2, comprising the above.

4. A sensor attached along the inclined surface The illumination device according to any one of claims 1 to 3, comprising the above.

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