JP7478342B2 - lighting equipment - Google Patents

Description

An embodiment of the present invention relates to a lighting fixture that is attached to an installation surface.

Conventionally, in lighting fixtures in which the light source unit is located on the front side of the fixture body, during installation, the light source unit is removed from the fixture body, the fixture body is placed 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.

As such, when installing a lighting fixture, the light source unit must be removed from the fixture body. After the fixture body is placed on the installation surface, the light source unit must be electrically connected to the fixture body before being attached to the fixture body, making the installation process complicated.

JP 2018-142473 A

The present invention aims to provide a lighting fixture that can improve installation ease.

The lighting fixture of the embodiment includes a light source unit, a cover, and a fixture body having a rear part with an attachment part to be attached to an installation surface and a pair of attachment bases arranged at a distance from each other and for attaching the light source unit, the light source unit and the cover being attached to the front side separated from the rear part . The cover is attachable to and detachable from the fixture body in a state in which the light source unit is attached, and the light source unit is attachable to and detachable from the fixture body in a state in which the cover is attached. When either the light source unit or the cover is attached to the fixture body, a space is formed between the rear part and the light source unit or the cover, which allows work to be done on the attachment part from outside. The light source unit is attached to the pair of attachment bases so as to be separated from the rear side of the fixture body, and the space formed on the rear side of the light source unit is in communication with the space formed between the rear side of the fixture body and the cover.

The lighting fixture of this embodiment is expected to improve ease of installation.

1 is a perspective view of a lighting fixture according to a first embodiment mounted on a wall; FIG. 2 is a perspective view of the lighting fixture with the cover removed. FIG. 2 is a perspective view of the lighting fixture with the cover and the light source unit removed. FIG. 2 is a perspective view of the above lighting fixture mounted on a ceiling surface. FIG. 2 is a front view of the lighting fixture with the cover removed. FIG. 2 is a perspective view of the lighting fixture with the cover removed. FIG. FIG. 2 is a cross-sectional view of an emergency light unit of the lighting fixture. 1A and 1B are diagrams showing the light distribution caused by the lens of the emergency light unit of the same lighting fixture, where (a) is the light distribution diagram when mounted on a wall, and (b) is the light distribution diagram when mounted on a ceiling. FIG. 2 is a perspective view of a motion sensor and an emergency lighting unit of the lighting fixture. FIG. 2 is a wiring diagram of a portion of the lighting fixture. FIG. 4 is a cross-sectional view showing the battery and mounting bracket of the lighting fixture. FIG. 11 is a perspective view of a lighting fixture according to a second embodiment, the lighting fixture being attached to a wall surface. FIG. 2 is a perspective view of the lighting fixture with the cover removed. FIG. 2 is a perspective view of the lighting fixture with the cover and the light source unit removed.

The first embodiment will be described below with reference to Figures 1 to 12.

Lighting fixture 10 is shown in Figures 1 to 4. This lighting fixture 10 is installed on a mounting surface such as a wall or ceiling surface of a staircase landing, and is used to illuminate the staircase or landing. Furthermore, this lighting fixture 10 is an emergency lighting fixture that controls dimming in response to the detection of a person walking on the stairs, and is turned on by emergency power in the event of a power outage in the normal power supply.

Note that Fig. 1 shows the lighting fixture 10 mounted on a wall surface, and Fig. 4 shows the lighting fixture 10 mounted on a ceiling surface, but the following description will mainly focus on the lighting fixture 10 mounted on a wall surface.

The lighting fixture 10 is provided in an elongated shape along the width direction. The lighting fixture 10 includes a housing 11, a light source unit 12 and an emergency light unit 13, which are the main light source or normal light source and are arranged on the front side of the housing 11 (main body 23), and a terminal block 14, a power supply unit 15, a human sensor 16, a sensor control unit 17, an emergency lighting unit 18 and a battery 19, which are arranged inside the housing 11 (main body 23).

The housing 11 comprises an appliance body 23 and a cover 24 that is removably attached to the front of the appliance body 23. An inclined surface 25 that is inclined toward one side in the short side direction is formed on the front of the housing 11. The angle that the inclined surface 25 makes with the installation surface (the rear surface 27 of the appliance body 23) is, for example, 30°.

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

The light source unit 12 and emergency light unit 13 are arranged in the lower area on one side of the short side of the front side of the fixture body 23, and a front opening 31 that is opened and closed by a cover 24 is formed in the upper area on the other side.

The rear portion 27 is provided with a wiring hole 32 for drawing the external power line drawn from the installation surface into the fixture body 23, and a mounting portion 33 for mounting the fixture body 23 to the installation surface. The mounting portion 33 is attached to a bolt protruding from the installation surface, and has mounting holes 34, 35 provided on both ends of the rear portion 27 in the longitudinal direction. The fixture body 23 is attached to the installation surface by passing the bolt through the mounting holes 34, 35 and screwing and tightening a nut onto the tip of the bolt. One mounting hole 34 is formed in an elongated hole shape that is long in the longitudinal direction of the fixture body 23, and the other mounting hole 35 is formed in an elliptical hole shape that is long in the longitudinal direction of the fixture body 23.

When the light source unit 12 is attached to the fixture body 23, a space is formed between the light source unit 12 and the fixture body 23 that allows work on the mounting portion 33, etc. from the outside. That is, when the light source unit 12 and the emergency light unit 13 are attached to the fixture body 23, the wiring hole 32 and the mounting portion 33 are arranged in a position that is exposed when the cover 24 is removed, and the terminal block 14, the power supply unit 15, the human sensor 16, the sensor control unit 17, the emergency lighting unit 18, and the battery 19 are arranged in the fixture body 23. That is, as shown in FIG. 5, when the fixture body 23 is viewed from the front, the wiring hole 32 and the mounting portion 33 are arranged in a position that is not covered by the light source unit 12 and the emergency light unit 13 and can be worked on from the front opening 31 of the fixture body 23, and the terminal block 14, the power supply unit 15, the human sensor 16, the sensor control unit 17, the emergency lighting unit 18, and the battery 19 are arranged. Furthermore, the human presence sensor 16 is disposed in the longitudinal center of the fixture body 23, the terminal block 14, the power supply unit 15, and the battery 19 are disposed on the left side, which is one end side of the longitudinal center, and the emergency lighting unit 18, the sensor control unit 17, and the battery 19 are disposed on the right side, which is the other end side of the longitudinal center. The battery 19 may be mounted on either the left or right side of the fixture body 23 as necessary.

A pair of mounting bases 36 for mounting the light source unit 12 and emergency light unit 13 are attached to the lower area near both ends of the fixture body 23 and on one of the short sides. The front of the mounting bases 36 is inclined to correspond to the inclined surface 25 on the front of the housing 11. A spring receiving bracket 37 for mounting the light source unit 12 is attached to the front of the mounting bases 36.

The pair of mounting bases 36 are spaced apart from each other in the longitudinal direction of the fixture body 23, and as shown in FIG. 6, a wiring space 38 that communicates with the inside of the fixture 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. In other words, the light source unit 12 is attached to the pair of mounting bases 36 so as to be spaced apart from the back side of the fixture body 23, and the space formed on the back side of the light source unit 12 is connected to the space formed between the back side of the fixture body 23 and the cover 24.

The cover 24 also has a front portion 40 and a side portion 41 bent from the front portion 40. The cover 24 covers the front opening 31 of the device body 23 with the front portion 40, and the side portion 41 is positioned so as to overlap the upper side portion 28 of the device body 23 and is detachably attached to the side portion 28 with screws or the like.

The front surface 40 of the cover 24 is formed with an inclined surface 25 on the front side of the housing 11. This inclined surface 25 also functions as a reflective surface that reflects the light from the light source unit 12. The front end side of the side surface 41 of the cover 24 is inclined toward the front surface 40, but it does not have to be inclined.

In the center of the front portion 40 of the cover 24, there is a sensor hole 42 in which the human presence sensor 16 is placed, and an inspection window 43 overlooking the emergency lighting unit 18.

Next, the light source unit 12 is provided in an elongated 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 light-transmitting cover 49 attached to the chassis 47 to cover the light-emitting module 48, and a pair of mounting springs 50 that mount the light source unit 12 to the fixture body 23.

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-mounted LED is used as the light-emitting element, and multiple light-emitting elements are mounted in one or multiple rows along the longitudinal direction of the substrate 52. Note that the light-emitting element is not limited to an LED, and may be other elements such as an organic EL. The light-emitting module 48 is electrically connected to the power supply unit 15 by a connection wiring when the light source unit 12 is attached to the fixture body 23.

The light source unit 12 is attached parallel to the inclined surface 25 on the front side of the housing 11, i.e., it is attached in an inclined state with respect to the rear part 27 that is attached to the installation surface.

The translucent cover 49 is made of a resin that is translucent and light diffusing, and the cross section that intersects the longitudinal direction is formed in a convex curved shape.

The mounting springs 50 are attached to the rear of the chassis 47 near both ends in the longitudinal direction. With the mounting springs 50 engaged with the spring receiving metal fittings 37 of the mounting bases 36 attached to the fixture body 23, the elastic force of the mounting springs 50 pulls the light source unit 12 toward the mounting bases 36, and the light source unit 12 engages with the pair of mounting bases 36 and is attached to the fixture body 23. The light source unit 12 can be removed from the fixture body 23 by pulling the light source unit 12 away from the fixture body 23 against the elastic force of the mounting springs 50 and removing the mounting springs 50 from the spring receiving metal fittings 37. The light source unit 12 is attached to a lower area on one side of the short side of the front surface of the fixture body 23, and is arranged in an inclined manner so that the optical axis direction is perpendicular to the inclined surface 25 on the front surface of the housing 11 and faces diagonally downward.

The emergency light unit 13 is attached to the front of the fixture body 23, aligned on both sides of the light source unit 12 in the longitudinal direction. As shown in FIG. 8, the emergency light unit 13 includes an emergency light source 56, an emergency light source cover to which the emergency light source 56 is attached, and a front frame 57, which is a decorative frame.

The emergency light source 56 includes a light-emitting unit 59 and a lens 62 that controls the distribution of light from the light-emitting unit 59.

The light-emitting unit 59 uses a light-emitting element (semiconductor light-emitting element) such as an LED. For example, the light-emitting unit 59 uses a COB module in which multiple LED chips are mounted on a substrate and covered with a sealing material containing phosphor. The light-emitting unit 59 is mounted in an annular socket 60, and the socket 60 attaches the light-emitting unit 59 in intimate contact with the front surface of a heat sink 61. The heat sink 61 is attached to the rear side of the front frame 57, and has an engagement claw (not shown) protruding from its end that engages with the end surface 30 of the fixture body 23 for attachment.

The lens 62 is made of glass, for example. The lens 62 has a lens portion 63 and an edge portion 64 that protrudes from the periphery of the lens portion 63. The lens portion 63 has an inner surface that faces the light-emitting portion 59 that is concave, and an outer surface on the opposite side that is convex. The lens portion 63 protrudes forward from the front frame 57.

The lens 62 is formed in an irregular shape to obtain the desired light distribution, and the center of the light emitting part 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. Figure 9 (a) shows a light distribution diagram by the lens 62 when the lighting fixture 10 is mounted on a wall, and Figure 9 (b) shows a light distribution diagram by the lens 62 when the lighting fixture 10 is mounted on a ceiling. A shown in Figures 9 (a) and (b) is the optical axis direction of the light emitting part 59 perpendicular to the light emitting surface of the light emitting part 59. The lens 62 provides a light distribution with a peak in the forward direction in the case of wall mounting as shown in Figure 9 (a), and a light distribution with a peak in the downward direction in the case of ceiling mounting as shown in Figure 9 (b), so that light distribution characteristics suitable for either mounting position can be obtained.

The front frame 57 is made of metal or a non-flammable material. The front frame 57 has a cover portion 66 that covers the emergency light source 56, a mounting plate portion 67 (see FIG. 3) that protrudes from one end of the cover 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 beyond the emergency light source 56.

In the center of the cover portion 66, an opening 69 is provided from which the lens portion 63 of the lens 62 protrudes. A tapered portion 70 is provided at the edge of the opening 69, expanding forward in a region that corresponds to at least the area where the partition portion 68 is not present. In this embodiment, the tapered portion 70 is provided around the entire 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 rather than directly below when the lighting fixture 10 is mounted on a wall, and is set to an angle that expands and inclines upward rather than horizontally when the lighting fixture 10 is mounted on a ceiling.

The partition portion 68 is disposed between the light-transmitting cover 49 of the light source unit 12. The partition portion 68 protrudes higher than the light-transmitting cover 49 and the lens 62 of the light source unit 12, and separates the light-transmitting cover 49 and the lens 62 of the light source unit 12. An inclined reflecting surface 71 is formed on the surface of the partition portion 68 facing the lens 62, so as to expand forward from the front surface of the cover portion 66.

The partition wall 68 is provided only on one side of the cover part 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 cover part 66. Therefore, a flat part 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 part 72 is formed by the front surface of the cover part 66 of the front frame 57. Due to this flat part 72, there is no light blocking object between the emergency light source 56 and the end of the fixture body 23, and light from the emergency light source 56 is irradiated toward the end of the fixture body 23.

The terminal block 14 is attached to the rear part 27 of the fixture body 23. An external power supply line is connected to the terminal block 14, which is drawn into the fixture body 23 from the wiring hole 32. 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. If there are many power supply points by internal wiring, a terminal block 14a for internal wiring may be used as part of the terminal block 14. This terminal block 14a for internal wiring is not used to connect the external power supply line, so it may be disposed on the fixture body 23 on the rear side of the light source unit 12, or may be disposed in a position where it is exposed when the cover 24 is removed with the light source unit 12 and the emergency light unit 13 attached to the fixture body 23.

The power supply unit 15 is attached to the rear portion 27 of the fixture body 23. The power supply unit 15 has an external power supply input portion, which is the primary side, electrically connected to the terminal block 14 by internal wiring, and a lighting power supply output side, which is 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 a connector connection.

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 elements of the light-emitting module 48, and supplies the lighting power supply to the light-emitting module 48 of the light source unit 12. For example, the power supply unit 15 includes a rectifier circuit that rectifies the AC voltage supplied from the AC power supply, which is an external power supply, a power factor improvement circuit such as a step-up chopper circuit that converts the AC voltage rectified by the rectifier circuit into a DC voltage, and a drive circuit such as a step-down chopper circuit that converts the DC voltage from the power factor improvement circuit into a predetermined DC voltage to be supplied to the light-emitting elements. The drive circuit has a switching element, and the switching operation of the switching element controls the current supplied to the light-emitting elements, thereby dimming 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.

The human presence sensor 16 is, for example, of a radio wave type, and transmits and receives detection radio waves from a sensor surface 16a on the front side to detect the presence of a person moving in the area in front of the lighting fixture 10. As shown in Fig. 10, the human presence sensor 16 is attached to the upper side surface 28 of the fixture body 23 by a support member 75. The support member 75 supports the human presence sensor 16 at an angle so that the sensor surface 16a faces downward by, for example, 30° in accordance with the inclination of the inclined surface 25 on the front side of the housing 11. The front end side of the human presence sensor 16 protrudes forward from a sensor hole 42 in the cover 24.
The human presence sensor 16 is located in the longitudinal center of the fixture body 23 and overlaps with the wiring hole 32 provided in the rear portion 27 of the fixture body 23, but is attached to the upper side portion 28 rather than the rear portion 27 of the fixture body 23 by a support member 75, so that it is away from the wiring hole 32 and is configured not to interfere with the external power supply line drawn in from the wiring hole 32.

The sensor control unit 17 is attached to the rear portion 27 of the fixture body 23. The sensor control unit 17 is electrically connected to the terminal block 14 by internal wiring, and operates by receiving an external power supply. The sensor control unit 17 is electrically connected to the human presence sensor 16 by internal wiring, and 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 control signals such as a dimming signal to the power supply unit 15 in response to the detection of the presence of a person by the human presence sensor 16.

The emergency lighting unit 18 is electrically connected to the terminal block 14 by internal wiring, operates by receiving power from an external power source, and is electrically connected to the battery 19 by internal wiring, and controls the charging and discharging of the battery 19.

The emergency lighting unit 18 includes a case 78 made of resin, for example, and circuits housed within the case 78, namely, a power outage detection circuit that detects a power outage in the external power source, a charging circuit that charges the battery 19 when the external power source is supplied, and an emergency lighting circuit that supplies lighting power to the emergency light source 56 using the power of the battery 19 when the external power source is out. Furthermore, the emergency lighting unit 18 includes an inspection section 79 that is provided on the front of the case 78 and issues an instruction to inspect the emergency lighting including the emergency light source 56 and the battery 19, and an inspection circuit that executes an inspection mode in response to this inspection instruction.

The inspection unit 79 is disposed opposite the inspection window 43 in the cover 24 of the device body 23, and includes a receiving unit that receives wireless signals such as infrared signals transmitted from a terminal such as an inspection remote control, a transmitting unit that transmits the inspection results to the terminal, an inspection switch for manually instructing an inspection, and a monitor lamp that displays the inspection results, etc.

7 and 10, the emergency lighting unit 18 is attached to the upper side 28 of the fixture body 23 by a support member 81. The support member 81 supports the emergency lighting unit 18 at an angle to the rear part 27 of the fixture body 23 so that the inspection part 79 on the front side faces downward, for example, by 30 degrees, in accordance with the inclination of the inclined surface 25 on the front side of the housing 11. The support member 81 has a support plate part 82 to which the emergency lighting unit 18 is attached, and an attachment plate part 83 that is bent from both sides of the support plate part 82 and attached to the upper side part 28 of the fixture body 23 by screwing or the like. The attachment plate part 83 is bent from the rear side area of the support plate part 82, and the front side area of the support plate part 82 is open. The inspection part 79 of the emergency lighting unit 18 supported at an angle by the support member 81 faces the inspection window 43 provided on the inclined surface 25 of the cover 24 (housing 11).

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 area 84 has a first wiring area 84a between the emergency lighting unit 18 and the first surface 11a of the housing 11, a second wiring area 84b between the emergency lighting unit 18 and the second surface 11b of the housing 11, and a third wiring area 84c surrounded by the emergency lighting unit 18 and the first surface 11a and second surface 11b of the housing 11. The first surface 11a of the housing 11 is the back surface 27 of the fixture body 23, the second surface 11b includes the side surface 28 of the fixture body 23 and the side surface 41 of the cover 24, and the second surface 11b protrudes forward from the first surface 11a.

Figure 11 shows a wiring diagram of part of the lighting fixture 10. In the wiring area 84 formed by the emergency lighting unit 18, internal wiring is laid that connects the first electric unit E1 and the second electric unit E2 arranged on both sides of the emergency lighting unit 18. The first electric unit E1 includes a terminal block 14, a power supply unit 15, and a human sensor 16, and the second electric unit E2 includes a sensor control unit 17.

In the three wiring regions 84 formed by the emergency lighting unit 18, the power line AC and the signal line S of the internal wiring are wired separately so as not to contact each other. For example, the power line AC1 electrically connecting the terminal block 14 and the emergency lighting unit 18 is wired in the first wiring region 84a, the power line AC2 electrically connecting the terminal block 14 and the sensor control unit 17 is wired in the second wiring region 84b, and the signal line S electrically connecting the power unit 15 and the sensor control unit 17 is wired in the third wiring region 84c. Note that the power line AC and the signal line S may be wired in any wiring region 84 as long as they are wired separately so as not to overlap. For example, if the signal line S is wired in the second wiring region 84b or the third wiring region 84c and multiple power lines AC are wired in the first wiring region 84a, it becomes possible to wire without considering the contact of multiple power lines AC, and the wiring work is reduced. Furthermore, by wiring the signal line S in the third wiring area 84c and wiring the power line AC that is more susceptible to noise among the multiple power lines AC in the second wiring area 84b, it is possible to separate and wire the power line AC that is more susceptible to noise.

The battery 19 is a rechargeable storage battery. Two battery packs are used for the battery 19, which are arranged at both ends of the longitudinal direction of the fixture body 23 and are electrically connected to the emergency lighting unit 18 by internal wiring.

The battery 19 is attached to the device body 23 by a mounting bracket 87. As shown in Figs. 2 and 12, the mounting bracket 87 is formed in a frame shape from 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 device body. A substantially L-shaped locking piece portion 91 protrudes from the tip of one end frame portion 89. At one end of the mounting bracket 87, the locking piece portion 91 penetrates the back portion 27 of the device body 23 and engages with the outer surface, and the other end of the mounting bracket 87 is attached to the back portion 27 of the device body 23 by a screw 92. When the screw 92 is removed, the mounting bracket 87 can be rotated around the engagement point of the locking piece portion 91 that penetrates the back portion 27 of the device body 23, and the battery 19 can be replaced. Inside the device body 23, a space is provided on the side of the mounting bracket 87 in the opening rotation direction to allow the mounting bracket 87 to be opened and rotated. Furthermore, if the battery 19 is mounted on either the left or right side of the device body 23 as required, only one mounting bracket 87 is required.

When installing the lighting fixture 10 on a mounting surface, the cover 24 is removed from the fixture body 23, and the front opening 31 of the fixture body 23 is opened.

The external power supply wire protruding from the installation surface is passed through the wiring hole 32 into the fixture body 23 through the front opening 31 of the fixture body 23.

Through the front opening 31 of the fixture body 23, two bolts protruding from the installation surface are passed through two mounting holes 34, 35 in the rear part 27 of the fixture body 23, and nuts are screwed onto the tips of the bolts to fasten them, attaching the rear part 27 of the fixture body 23 to the installation surface. When attaching the fixture body 23 to a ceiling surface, a bolt and a nut are passed through the bell-shaped mounting hole 35 on one end side of the fixture body 23 with a nut lightly screwed onto the tip of one of the bolts, and the fixture body 23 is moved to one end side in the longitudinal direction, and one end side of the fixture body 23 is temporarily fixed to one of the bolts, which allows the fixture body 23 to be easily attached to the ceiling surface.

The external power supply line that passes through the wiring hole 32 and into the fixture body 23 is connected to the terminal block 14 through the front opening 31 of the fixture body 23.

The cover 24 is attached to the fixture body 23. In this way, the lighting fixture 10 is installed on a mounting surface such as a wall or ceiling of the staircase landing.

During normal operation when external power is being supplied to the lighting fixture 10, the power supply unit 15 converts the external power into a specified lighting power supply and supplies it to the light source unit 12. This causes the light source unit 12 to light up, illuminating the stairs and landing.

When the lighting fixture 10 is attached to a wall, the light source unit 12 is located on the lower side of the fixture body 23 and is tilted diagonally downward, so that light is also irradiated onto the lower side of the wall on which the lighting fixture 10 is installed and the floor of the landing, etc., which has the effect of brightening the area around the foot of the landing.

In addition, during normal operation, the sensor control unit 17 monitors whether or not a person is detected by the human presence sensor 16, controls the power supply unit 15 in response to the detection of a person, and automatically controls the brightness of the light source unit 12. When the human presence sensor 16 does not detect a person, the sensor control unit 17 saves energy by turning off the light source unit 12 or dimming the light output to lower it, and when the human presence sensor 16 detects a person, it turns on the light source unit 12 or dims the light output to increase it.

In addition, during normal operation, the emergency lighting unit 18 detects the supply of an external power source and charges the battery 19 using this external power source. At this time, the emergency light source 56 is turned off.

In the event of a power outage, when the supply of external power to the lighting fixture 10 stops, the emergency lighting unit 18 detects the power outage of the external power source and converts the power of the battery 19 into a specified lighting power source and supplies it to the emergency light source 56. As a result, in the event of a power outage, the light source unit 12 is turned off, but the emergency light source 56 is turned on, illuminating the stairs and landing.

When the lighting fixture 10 is attached to a wall, the emergency light source 56 is located on the lower side of the fixture body 23 and is tilted diagonally downward, so that light is also irradiated onto the lower side of the wall on which the lighting fixture 10 is installed and the floor of the landing, etc., which has the effect of brightening the area around the base of the stairs or landing.

Furthermore, when the lighting fixture 10 is mounted on a wall, the lens 62 of the emergency light source 56 distributes light with a peak in the forward direction, which has the effect of brightening the area on the staircase side away from the lighting fixture 10. When the lighting fixture 10 is mounted on a ceiling, the lens 62 of the emergency light source 56 distributes light with a peak in the downward direction, which has the effect of brightening the area around the foot of the stairs or landing.

Furthermore, at the edge of the opening 69 of the front frame 57 where the lens 62 of the emergency light source 56 is located, at least in the area without the partition wall 68, a tapered portion 70 that widens toward the front is provided, so that the light from the lens 62 is irradiated over a wide area. For example, when the lighting fixture 10 is mounted on a wall, the light is irradiated toward the wall surface rather than directly below, which has the effect of brightening the wall surface, and when the lighting fixture 10 is mounted on a ceiling surface, the light is irradiated upward rather than horizontally, which has the effect of brightening the stairs.

In addition, the emergency light sources 56 are arranged in two locations, one on each end of the fixture body 23, so that the side of the stairs connecting the landing to the upper floor and the side of the stairs connecting the landing to the lower floor can be properly illuminated.

The lighting fixture 10 is also periodically inspected to ensure that the emergency light source 56 is operating normally using the power of the battery 19. When inspecting the lighting fixture 10, the worker operates a terminal below the lighting fixture 10 to be inspected, and transmits an inspection signal to the inspection unit 79 of the lighting fixture 10. When the inspection unit 79 receives an inspection signal from the terminal, the emergency lighting unit 18 goes into inspection mode, turns on the emergency light source 56 using the power of the battery 19, and determines the life of the battery 19. The inspection operation and the inspection result are displayed by the monitor lamp of the inspection unit 79. After the inspection is completed, the inspection unit 79 transmits a signal of the inspection result to the terminal. The worker then 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 understand the status of the lighting fixture 10.

If the battery 19 is found to have reached its end of life or is abnormal, the battery 19 is replaced. When replacing the battery 19, first remove the cover 24 from the device body 23, open the front opening 31 of the device body 23, and expose the battery 19 and the mounting bracket 87. Next, remove the screw 92 that fastens the mounting bracket 87 to the device body 23, rotate the mounting bracket 87 open using the locking piece 91 side as a fulcrum, and remove the battery 19 from inside the mounting bracket 87. Next, place a new battery 19 inside the mounting bracket 87, rotate the mounting bracket 87 toward the back part 27 of the device body 23 using the locking piece 91 side as a fulcrum, and attach the mounting bracket 87 to the device body 23 with the screw 92. At this time, the mounting bracket 87 is rotatably connected to the device body 23 using the locking piece 91 side as a fulcrum, so the battery 19 can be replaced by simply attaching and detaching one screw 92 to the device body 23, making the replacement work easy.

The lighting fixture 10 configured in this manner allows the fixture body 23 to be installed on the installation surface with the light source unit 12 attached, eliminating the need to remove the light source unit 12 during installation, improving ease of installation.

When the light source unit 12 is attached to the fixture body 23, a space is formed between the light source unit 12 and the fixture body 23 that allows installation from the outside to the mounting portion 33, so that the fixture body 23 can be installed on the installation surface with the light source unit 12 attached.

The fixture body 23 has an attachment portion 33 for attachment to the installation surface at a position that is exposed when the cover 24 is removed with the light source unit 12 attached to the fixture body 23, so that the fixture body 23 can be installed on the installation surface with the light source unit 12 attached.

The light source unit 12 is attached to a pair of mounting bases 36 so as to be spaced apart from the rear surface of the fixture body 23, and the space formed on the rear surface of the light source unit 12 is connected to the space formed between the rear surface of the fixture body 23 and the cover 24, so that the rear surface of the light source unit 12 can be used as a wiring space 38.

The battery 19 is replaceably disposed in the fixture body 23 in a position that is exposed when the cover 24 is removed while the light source unit 12 is attached to the fixture body 23. This eliminates the need to remove the light source unit 12 when replacing the battery 19, improving the ease of replacing the battery 19.

In addition, 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, so that the three wiring areas 84 can be used to easily align the internal wiring, which is the electric wires wired inside the housing 11. Moreover, the emergency lighting unit 18 acts as a partition wall, so that it is possible to prevent the electric wires wired near the emergency lighting unit 18 from coming into contact with each other.

When the housing 11 has a first surface 11a and a second surface 11b protruding from the first surface 11a, three wiring areas 84 can be formed: a first wiring area 84a between the emergency lighting unit 18 and the first surface 11a of the housing 11, a second wiring area 84b between the emergency lighting unit 18 and the second surface 11b of the housing 11, and a third wiring area 84c surrounded by the emergency lighting unit 18 and the first and second surfaces 11a and 11b of the housing 11.

When the emergency lighting unit 18 is disposed between the terminal block 14 and power supply unit 15, which are the first electric unit E1, and the sensor control unit 17, which is the second electric unit E2, the three wiring areas 84 formed by the emergency lighting unit 18 can be wired separately so that the power supply line AC and the signal line S, which are among the internal wiring wired between the first electric unit E1 and the second electric unit E2, do not come into contact with each other, thereby preventing the occurrence of noise and other effects due to contact between the power supply line AC and the signal line S.

The emergency lighting unit 18 is supported at an angle to the first surface 11a of the housing 11 by the support member 81, so that the inspection part 79 can be oriented diagonally forward, facilitating inspection operations and inspection confirmation.

The device supported by the support member 81 to form the three wiring regions 84 is not limited to the emergency lighting unit 18, but may be other devices such as a human presence sensor 16.

In addition, the emergency light unit 13 has a partition wall portion 68 disposed 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 catches fire in an emergency, the partition wall portion 68 protects the emergency light source 56, ensuring that the emergency light source 56 can be operated reliably.

Because 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, there is no light blocking material 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 areas of the lighting fixture 10 brighter as well.

A tapered portion 70 that widens forward is provided at the edge of the opening 69 of the front frame 57 where the lens 62 of the emergency light source 56 is located, at least in the area without the partition wall portion 68, so that the light from the lens 62 can be irradiated over a wide area. For example, when the lighting fixture 10 is mounted on a wall, the light is irradiated toward the wall surface rather than directly below, which has the effect of brightening the wall surface, and when the lighting fixture 10 is mounted on a ceiling surface, the light is irradiated upward rather than horizontally, which has the effect of brightening the stairs.

Next, the second embodiment is shown in Figures 13 and 14.

The second embodiment is different from the first embodiment in that it shares some components but has a shorter longitudinal length of the lighting fixture 10, i.e., the length of the housing 11 and the light source unit 12.

One of the commonly used parts is a pair of mounting bases 36. In this case, one spring receiving bracket 37 is attached to one mounting base 36, but the other spring receiving bracket 37 is not attached to the other mounting base 36, and the other spring receiving bracket 37 is attached to the front frame 57 side of the emergency light unit 13. This means that if the distance between the pair of mounting springs 50 of the light source unit 12 is fixed, the other spring receiving bracket 37 is attached to the front frame 57 side of the emergency light unit 13, not to the mounting base 36, to match that distance. By configuring it in this way, the pair of mounting bases 36 can be shared.

The emergency light source 56 may be provided in one location in the center of the width of the device body 23, or may be disposed below the light source unit 12. When the emergency light source 56 is disposed close to the bottom of the light source unit 12, a partition wall 68 may be disposed between the emergency light source 56 and the light source unit 12.

The fixture body 23 may be configured so that it can be installed on the installation surface even with the cover 24 attached. That is, when the cover 24 is attached to the fixture body 23, a space may be formed between the cover 24 and the fixture body 23, allowing installation to the installation portion 33 from the outside. The fixture body 23 may also have an installation portion 33 for installation on the installation surface at a position that is exposed when the light source unit 12 is removed with the cover 24 attached to the fixture body 23. Then, the fixture body 23 can be installed on the installation surface with the cover 24 attached.

Although several 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, substitutions, and modifications 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 scope of the invention and its equivalents described in the claims.

10 Lighting equipment
12 Light source unit
19 Battery
23 Equipment body
24 Cover
33 Mounting part
36 Mounting stand
56 Emergency Light Source

Claims (3)

A light source unit;
Cover and;
an apparatus main body having a rear portion with an attachment portion to be attached to an installation surface, and a pair of attachment bases arranged apart from each other and for attaching the light source unit, the light source unit and the cover being attached to a front side separated from the rear portion ;
Equipped with
The cover is detachable from the fixture body in a state where the light source unit is attached, and the light source unit is detachable from the fixture body in a state where the cover is attached,
In the device body, when either the light source unit or the cover is attached, a space that can be accessed from the outside to the attachment portion is formed between the rear portion and the light source unit or the cover,
The light source unit is attached to the pair of mounting bases so as to be spaced apart from the rear surface of the fixture body, and a space formed on the rear surface side of the light source unit is in communication with a space formed between the rear surface of the fixture body and the cover.
A lighting fixture characterized by: The lighting fixture according to claim 1, characterized in that the fixture body has an attachment portion to be attached to the installation surface, and when either the light source unit or the cover is attached, a space is formed between the light source unit or the cover, allowing access to the attachment portion from the outside. A battery;
an emergency light source that is turned on by the power source of the battery when an external power source fails;
Equipped with
The lighting fixture according to claim 1 or 2 , wherein the battery is disposed at a position on the fixture body that is exposed when the cover is removed with the light source unit attached.

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