JP6988316B2 - Lighting equipment - Google Patents

Description

Embodiments of the present invention relate to a lighting device.

LED lighting fixtures equipped with a lens have been proposed so that the light emitted from a light emitting diode (LED) is emitted in a predetermined direction. For example, a light projecting lens integrally mounted on a substrate so as to surround the entire light emitting region of the light emitting diode is provided, and the light distribution characteristics of light from the light emitting diode are controlled by using the refractive index of the light emitting lens. LED lighting fixtures have been proposed. When such a wide-angle projection lens is mounted, such an LED luminaire can be effectively used as illuminating light without letting the light diffused from the light emitting diode escape.

In addition, as a lighting fixture that can be directly attached to the ceiling surface of a house, commercial facility, factory, etc., an emergency light built-in lighting fixture that incorporates an emergency light inside the fixture body of the lighting fixture that has a light source for regular lighting has been developed. There is. As an emergency light in such a lighting fixture, an LED lighting fixture equipped with a wide-angle projection lens as described above is used. This emergency light built-in lighting fixture normally uses the power of an external power source such as a commercial power source to turn on a general light source, and in an emergency when the power supply from the external power source stops, it uses the power of the built-in storage battery. It is configured to turn on the emergency light source.

As such a lighting fixture with a built-in emergency lamp, a lighting fixture in which a first lighting fixture having a general light source and a second lighting fixture having an emergency light source are arranged side by side in the longitudinal direction of the first lighting fixture has been proposed. ..

Japanese Unexamined Patent Publication No. 2017-45614

However, when a general light source and an emergency light source are arranged in one luminaire, the arrangement space is limited, and it is conceivable that the distance between the general light source and the emergency light source becomes short. Therefore, if a general light source ignites, the fire may spread to the emergency light source.

Further, even if the conventional technique of arranging the first luminaire having a general light source and the second luminaire having an emergency light source side by side is used, it is possible to avoid the spread of fire to the emergency light source when the general light source ignites. Have difficulty.

An object of the present invention to be solved is to provide a lighting device that suppresses the spread of fire to an emergency light source.

In one aspect of the lighting device disclosed in the present application, it has a first light emitting member and a second light emitting member. The partition wall is arranged between the first light emitting member and the second light emitting member, and the length of the surface facing the second light emitting member in the direction orthogonal to the irradiation direction is the first of the second light emitting members. It is a plate-shaped member having a length equal to or longer than a region facing the light emitting member, and is a translucent nonflammable member having a height equal to or higher than the height in the irradiation direction of the second light emitting member.

FIG. 1 is a perspective view showing the overall appearance of the emergency light built-in type lighting device according to the first embodiment. FIG. 2 is an enlarged perspective view of a portion to which an emergency light is attached. FIG. 3 is a schematic perspective view of an emergency light removed from the housing of the lighting device. FIG. 4 is a diagram for explaining the arrangement state of the partition wall. FIG. 5 is a diagram showing an example of a tubular partition wall. FIG. 6 is a diagram showing an example of a dome-shaped partition wall.

The lighting device 100 according to the embodiment described below includes an LED bar 3, an emergency light source module 21, and a partition wall 7. The partition wall 7 is a translucent nonflammable member arranged between the LED bar 3 and the emergency light source module 21 and having a height equal to or higher than the height of the emergency light source module 21 in the irradiation direction.

Further, the emergency light source module 21 according to the embodiment described below has a translucent lens 211 that covers the emergency light source 212 and the emergency light source 212.

Further, in the partition wall 7 according to the embodiment described below, the length of the surface facing the emergency light source module 21 in the direction orthogonal to the irradiation direction is longer than the region facing the LED bar 3 of the emergency light source module 21. It is a plate-shaped member having a length.

Further, the partition wall 7 according to the embodiment described below is a cylindrical member that surrounds the entire circumference of the emergency light source module 21.

Further, the partition wall 7 according to the embodiment described below is a member having a shape that covers the entire irradiation direction of the emergency light source module 21.

Further, the partition wall 7 according to the embodiment described below is arranged at a position where the distance to the emergency light source module 21 is shorter than the distance to the LED bar 3.

Hereinafter, the lighting device according to the embodiment will be described with reference to the drawings. In the embodiment, the same parts are designated by the same reference numerals, and duplicate description is omitted.

(First Embodiment)
First, with reference to FIGS. 1 and 2, the overall configuration of the emergency light and the lighting device according to the first embodiment will be described.

FIG. 1 is a perspective view showing the overall appearance of the emergency light built-in type lighting device according to the first embodiment. As shown in FIG. 1, the luminaire 1 of the illuminating device 100 of the present embodiment includes a straight tube type LED bar 3 as a long regular lighting light source and a housing 4 holding the LED bar 3. Be prepared. The LED bar 3 is a common light source. The LED bar 3 is a general light source, and is lit by electric power supplied from an external power source such as a commercial power source.

Further, the lighting fixture 1 has a regular power supply unit (not shown) for lighting the LED bar 3 in a normal state, a power supply terminal block (not shown) for connecting the regular power supply unit to an external power source, and reflectors 41 and 42 for regular lighting. Equipped with components.

As shown in FIG. 1, the housing 4 of the luminaire 1 has a case member 5 which is an embedded chassis for accommodating components for normal lighting. The case member 5 has a pair of end plates 51 and 52 arranged so as to face each other. Then, the reflectors 41 and 42 are arranged between the end plates 51 and 52.

In the housing 4 of the lighting fixture 1, emergency lights 2 are arranged side by side in a direction orthogonal to the longitudinal direction of the LED bar 3 at an end portion on one inclined surface of the reflector 41 on the end plate 52 side. Orthogonal. In the present embodiment, a rectangular notch portion 6 is provided on one inclined surface of the reflector 41 of the housing 4. Then, the emergency light 2 is attached to the notch portion 6. Further, a nonflammable plate-shaped partition wall 7 having translucency is arranged between the luminaire 1 and the emergency light 2.

FIG. 2 is an enlarged perspective view of a portion to which an emergency light is attached. The emergency light 2 includes an emergency light source module 21. Further, the emergency light 2 has an inspection switch 22, a monitor LED 23, and a monitor LED 24. The emergency light 2 is held in a state of being attached to the housing 4 by the decorative frame 43. The emergency light 2 can be attached to and detached from the housing 4 by removing the decorative frame 43.

(Details of emergency light 2)
Next, the details of the emergency light 2 will be described with reference to FIG. FIG. 3 is a schematic perspective view of an emergency light removed from the housing of the lighting device. FIG. 3 shows the emergency light 2 in a state of being upside down from the emergency light 2 in the state of being attached to the lighting device 100 in FIG. As shown in FIG. 3, the emergency light 2 has a light source fixing bracket 25, a battery pack 26, and a circuit board case 27 in addition to an emergency light source module 21, an inspection switch 22, a monitor LED 23, and a monitor LED 24.

The battery pack 26 has a plurality of storage batteries (not shown). A power cable 261 that serves as a charging / discharging path extends from the battery pack 26, and the power cable 261 is connected to a battery terminal block 29 provided on a substrate (not shown). Specifically, in the emergency light 2 according to the present embodiment, a male side connector (not shown) is provided at the tip of the power cable 261 opposite to the battery pack 26. Then, the male side connector provided at the tip of the power cable 261 is connected to the female side connector (not shown) provided on the battery terminal block 29 of the board, so that the battery pack 26 can be connected to the power cable. It is connected to the battery terminal block 29 on the substrate by 261.

Normally, electric power supplied from an external power source such as a commercial power source flows into the battery pack 26 via the power cable 261 to charge the storage battery. On the other hand, when the power supply from the external power source is stopped due to a power failure or the like, the battery pack 26 supplies the electricity stored in the storage battery to the substrate via the power cable 261.

On the board, the inspection switch 22, the monitor LED 23, and the monitor LED 24 are arranged at one end on the wiring surface opposite to the surface on which the battery pack 26 is arranged. Further, on the board, a power supply terminal block 28 and a battery terminal block 29 are arranged at the opposite end on the wiring surface.

The board is covered with the circuit board case 27 on the side opposite to the battery pack 26. As shown in FIG. 3, the circuit board case 27 and the board are held by the light source fixing bracket 25.

Further, an emergency light source module 21 having a lens 211 and an emergency light source 212 is arranged on a surface of the substrate opposite to the battery pack 26. Then, as shown in FIG. 3, the circuit board case 27 and the board are held by the light source fixing bracket 25.

The board charges the battery pack 26 when it is powered by an external power source. Further, when the power supply from the external power source is stopped, the substrate 30 lights the emergency light source 212 by using the power supplied from the battery pack 26.

A transformer, a capacitor, or the like is arranged inside the power supply terminal block 28 and the battery terminal block 29. Further, in the present embodiment, the power supply terminal block 28 and the battery terminal block 29 are provided with a female connector for connection. As a result, a power supply cable (not shown) extending from the external power source can be attached to and detached from the power supply terminal block 28. Further, a power cable 261 extending from the battery pack 26 can be attached to and detached from the battery terminal block 29.

The inspection switch 22 is a switch for carrying out a state test of the emergency light source 212. When the inspection switch 22 is pressed, the emergency light source 212 lights up. Further, when the inspection switch 22 is pressed while the emergency light source 212 is lit, the emergency light source 212 is turned off.

The monitor LED 23 displays the charge status of the battery pack 26. Further, the monitor LED 24 notifies the operating status of the emergency light 2 and the occurrence of an abnormality. Here, in the present embodiment, the monitors LEDs 23 and 24 are arranged, but the number is not particularly limited.

The emergency light source module 21 is fixed to the circuit board case 27 by the light source fixing bracket 25. The emergency light source 212 is, for example, an LED. The emergency light source 212 is arranged on the surface of the substrate opposite to the battery pack 26. The emergency light source 212 has a wiring extending toward the battery terminal block 29 and is connected to the power supply path from the battery pack 26.

The lens 211 is arranged so as to cover the irradiation direction of the light of the emergency light source 212. The lens 211 spreads the light emitted from the emergency light source 212 over a wide range and irradiates the lens 211.

The light source fixing bracket 25 is a member for mutually fixing the emergency light source module 21, the circuit board case 27, and the battery pack 26. As shown in FIG. 3, the light source fixing bracket 25 has a shape that covers the periphery of the emergency light source module 21 and further covers the side surfaces of the circuit board case 27 and the battery pack 26.

(Details of partition wall 7)
Next, the details of the partition wall 7 will be described with reference to FIG. FIG. 4 is a diagram for explaining the arrangement state of the partition wall. As described above, the partition wall 7 is a plate-shaped member having translucency and nonflammability. The material of the partition wall 7 is, for example, glass. In FIG. 4, members not used in the explanation are omitted for the sake of clarity.

In FIG. 4, the base 53 to which the emergency light 2, the LED bar 3, and the partition wall 7 are fixed is a part of the case member 5, and is a member arranged inside the case member 5. The partition wall 7 has a height H from the base 53 toward the irradiation direction of the emergency light source module 21. Here, the irradiation direction of the emergency light source module 21 is the optical axis direction of the emergency light source 212. The irradiation direction is, for example, the normal direction of the base 53 in FIG. The height H is at least longer than the distance farthest from the base 53 of the lens 211 in the irradiation direction.

Further, the length of the partition wall 7 extending in the longitudinal direction of the LED bar 3 is longer than the length of the region of the lens 211 facing the LED bar 3. That is, the partition wall 7 has a plate-like shape in which the length in the direction orthogonal to the irradiation direction of the surface facing the lens 211 is longer than the length of the portion of the lens 211 facing the LED bar 3. The partition wall 7 is arranged so that the lens 211 cannot be seen when the lens 211 is viewed from each point of the LED bar 3 in the lateral direction of the LED bar 3. Hereinafter, the state of the partition wall 7 arranged in this way is referred to as a state in which the emergency light 2 is hidden when viewed from the LED bar 3. That is, since the emergency light 2 is hidden by the partition wall 7, which is a nonflammable member when viewed from the LED bar 3, it is possible to suppress the spread of fire from the LED bar 3.

Further, the LED bar 3 irradiates light in the irradiation range L1 shown by the alternate long and short dash line in FIG. Further, the emergency light source module 21 irradiates light in the irradiation range L2 shown by the alternate long and short dash line in FIG. In this case, in both the irradiation ranges L1 and L2, the partition wall 7 is in a position to block the irradiation light. However, since the partition wall 7 has translucency, the light emitted from the LED bar 3 and the emergency light source module 21 can illuminate all of the irradiation ranges L1 and L2, respectively.

Here, in FIG. 4, the partition wall 7 is arranged at a position where the distance to the LED bar 3 and the distance to the lens 211 are substantially equal, but the position of the partition wall 7 is not limited to this position. When the distance between the LED bar 3 and the lens 211 is large, it is more preferable that the partition wall 7 is arranged at a position closer to the emergency light source module 21 than the distance to the LED bar 3. The closer the partition wall 7 is to the emergency light source module 21, the more the fire spread to the emergency light source module 21 can be suppressed.

As described above, the emergency light source module of the lighting device according to the present embodiment is hidden by a partition wall having translucency and nonflammability when viewed from a general light source. Since this partition wall is translucent, it does not block the light emitted by either the general light source or the emergency light source. As a result, the lighting device according to the present embodiment can maintain the irradiation range of the general light source and the emergency light source, secure the amount of light, and suppress the spread of fire to the emergency light source module when the general light source ignites.

(Second embodiment)
In the first embodiment, the partition wall 7 has been described as a plate-shaped member, but if the fire spread is to be prevented, the emergency light 2 may be hidden by a nonflammable member when viewed from the LED bar 3. Therefore, the partition wall 7 may have another shape as long as it has a shape that hides the emergency light 2 when viewed from the LED bar 3. The case where the partition wall 7 having another shape is provided will be described below. FIG. 5 is a diagram showing an example of a tubular partition wall. Further, FIG. 6 is a diagram showing an example of a dome-shaped partition wall.

As shown in FIG. 5, the partition wall 7 may have a cylindrical shape that surrounds the entire circumference of the lens 211 of the emergency light source module 21. In this case, the tubular partition wall 7 has an opening in a direction away from the base 53 when viewed from the emergency light source 212. Also in this case, since the partition wall 7 has translucency, the light emitted from the emergency light source 212 can illuminate the entire irradiation range without being obstructed.

Further, as shown in FIG. 6, the partition wall 7 may have a dome shape that covers the lens 211 of the emergency light source module 21. In this case, the dome-shaped partition wall 7 covers the entire lens 211 so as to have a space between the lens 211 and the lens 211. Also in this case, since the partition wall 7 has translucency, the light emitted from the emergency light source 212 can illuminate the entire irradiation range without being obstructed.

As described above, the emergency light source module of the lighting device according to the present embodiment is hidden by a cylindrical or dome-shaped translucent and nonflammable partition wall when viewed from a general light source. As a result, it is possible to suppress the spread of fire from the general light source while maintaining the irradiation range of the general light source and the emergency light source module. That is, even if the shape is other than a flat plate, if it is a partition wall that hides the emergency light source when viewed from the general light source, the emergency light source module when the general light source ignites while ensuring the light intensity of the general light source and the emergency light source module. It is possible to suppress the spread of fire to.

1 Lighting equipment 2 Emergency light 3 LED bar 4 Housing 5 Case member 6 Notch 7 Partition 21 Emergency light source module 22 Inspection switch 23, 24 Monitor LED
25 Light source fixing bracket 26 Battery pack 27 Circuit board case 28 Power terminal block 29 Battery terminal block 41, 42 Reflector 43 Decorative frame 51, 52 End plate 53 Base 211 Lens 212 Emergency light source 261 Power cable

Claims (4)

With the first light emitting member;
With the second light emitting member arranged side by side with the first light emitting member;
The first light emitting member of the second light emitting member has a length in a direction orthogonal to the irradiation direction of a surface facing the second light emitting member, which is arranged between the first light emitting member and the second light emitting member. A translucent nonflammable partition wall having a length equal to or longer than the region facing the surface and having a height equal to or higher than the height in the irradiation direction of the second light emitting member;
A lighting device characterized by being equipped with. With the first light emitting member;
With the second light emitting member arranged side by side with the first light emitting member;
It is a cylindrical member arranged between the first light emitting member and the second light emitting member and surrounding the entire circumference of the second light emitting member, and has a height equal to or higher than the height of the second light emitting member in the irradiation direction. With a translucent non-combustible partition wall;
A lighting device characterized by being equipped with. The lighting device according to claim 1 or 2, wherein the second light emitting member includes an emergency light source and a translucent lens member that covers the emergency light source. The lighting device according to any one of claims 1 to 3, wherein the partition wall is arranged at a position where the distance to the second light emitting member is shorter than the distance to the first light emitting member.

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