JP2020136038A - Disaster prevention lighting apparatus - Google Patents

Abstract

To provide a disaster prevention lighting apparatus capable of reducing an installation space.SOLUTION: A disaster prevention lighting apparatus 1 includes: a first LED 211 for evacuation lighting; a second LED 30 for standby lighting; and a first lighting circuit 221 that lights the first LED 211. The disaster prevention lighting apparatus 1 further includes: a second lighting circuit 42 that lights the second LED 30; an emergency power supply 50; and a housing that accommodates the first LED 211, the second LED 30, the first lighting circuit 221, the second lighting circuit 42, and the emergency power supply 50. The first lighting circuit 221 and the second lighting circuit 42 turn on the first LED 211 and the second LED 30 using the electric power supplied from at least the emergency power supply 50.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a disaster prevention lighting device, and more particularly to a disaster prevention lighting device that performs emergency lighting using a storage battery as a power source.

As a conventional example, the guide light (disaster prevention lighting device) described in Patent Document 1 will be illustrated. Conventional examples described in Patent Document 1 include a square plate-shaped light guide plate, two straight-tube cold cathode lamps provided along the upper and lower ends of the light guide plate, and lighting for lighting each cold cathode lamp. The device includes a light guide plate, a cold cathode lamp, and a frame that supports a lighting device. The lighting device includes a normal inverter that operates using a commercial power source as a power source, an emergency inverter that operates using a secondary battery as a power source, a secondary battery, and the like.

Japanese Unexamined Patent Publication No. 7-201215

By the way, there are two types of emergency lighting: evacuation lighting and standby lighting. As an emergency lighting fixture for evacuation lighting, there is a guide light as in the above conventional example, and as an emergency lighting fixture for standby lighting, there is an emergency light. These two types of emergency lighting equipment (disaster prevention lighting equipment) were installed separately. However, it is desired to reduce the installation space of disaster prevention lighting equipment (emergency lighting equipment).

An object of the present disclosure is to provide a disaster prevention lighting device capable of reducing the installation space.

The disaster prevention lighting device according to one aspect of the present disclosure lights the first light source for evacuation lighting, the second light source for standby lighting, the first lighting circuit for lighting the first light source, and the second light source. It includes a second lighting circuit and an emergency power supply. The disaster prevention lighting device includes a housing for accommodating the first light source, the second light source, the first lighting circuit, the second lighting circuit, and the emergency power supply. The first lighting circuit and the second lighting circuit light the first light source and the second light source with at least the electric power supplied from the emergency power supply.

The disaster prevention lighting device of the present disclosure has an effect that the installation space can be reduced.

FIG. 1 is a perspective view of the disaster prevention lighting device according to the embodiment of the present disclosure. FIG. 2 is an exploded perspective view of the disaster prevention lighting device of the above. FIG. 3 is a circuit diagram of the disaster prevention lighting device of the same as above.

The disaster prevention lighting device according to the embodiment of the present disclosure will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic view, and the ratio of the size and the thickness of each component does not necessarily reflect the actual dimensional ratio. The configuration described in the following embodiments is only an example of the present disclosure. The present disclosure is not limited to the following embodiments, and various changes can be made depending on the design and the like as long as the effects of the present disclosure can be achieved.

As shown in FIGS. 1 and 2, the disaster prevention lighting device 1 (hereinafter, abbreviated as disaster prevention lighting device 1) according to the embodiment includes a guide light unit 2, an emergency light unit 3, a first circuit block 22, and a second circuit. It includes a block 4, a storage battery block 5, a housing 10, and the like.

The housing 10 is formed in a rectangular parallelepiped shape having a rectangular front wall 11, a rear wall 12, and four side walls 13, respectively. However, the housing 10 is composed of a main body 100 and a plate 101. The main body 100 is formed in a box shape with an open front surface, and constitutes a rear wall 12 of a housing 10 and four side walls 13. The plate 101 has a main portion 1010 formed in a quadrangular flat plate shape, and four side portions 1011 rising rearward from the four sides of the main portion 1010. The main portion 1010 of the plate 101 constitutes the front wall 11 of the housing 10. The four side portions 1011 of the plate 101 form the front end portions of the four side walls 13 of the housing 10. The plate 101 is detachably attached to the main body 100 by a pair of attachment springs 102. The housing 10 is configured by attaching the plate 101 to the front surface of the main body 100. The housing 10 (main body 100 and plate 101) is made of a non-combustible material such as a steel plate.

A mounting base 15 is screwed to the inner bottom surface (front surface of the rear wall 12) of the housing 10. The mounting base 15 is formed in a box shape with the front surface and the lower surface opened by a synthetic resin material. The guide light unit 2 and the second circuit block 4 are housed in the housing 10 in a state of being mounted on the mounting base 15 (see FIG. 2).

The guide light unit 2 has a display panel 20 and a light source block 21. The display panel 20 is formed in a quadrangular plate shape by a light-transmitting synthetic resin material such as an acrylic resin or a polycarbonate resin. However, the display panel 20 is formed so that the thickness in the front-rear direction is gradually reduced from the upper end to the lower end. A pictogram indicating an evacuation exit is drawn on the front surface of the display panel 20.

The light source block 21 includes two first LEDs (Light Emitting Diodes) 211 (see FIG. 3), a light guide member 212 that guides light emitted from each first LED 211, and two first LEDs 211 and a light guide member 212. A case 210 for accommodating is provided. The case 210 is formed in a rectangular parallelepiped shape with the left-right direction as the longitudinal direction. One first LED 211 is arranged at both ends of the case 210 in the longitudinal direction (left-right direction). The light guide member 212 is formed in a columnar shape by a light-transmitting synthetic resin material such as an acrylic resin or a polycarbonate resin. One end surface (left end surface) of the light guide member 212 in the longitudinal direction (left-right direction) faces the first LED 211 on the left side, and the other end surface (right end surface) of the light guide member 212 in the longitudinal direction (left-right direction) is on the right side. It faces the first LED 211. That is, the light emitted from the two first LEDs 211 enters the light guide member 212 from both end faces in the longitudinal direction of the light guide member 212 and emits light from the lower surface of the light guide member 212. Then, the light emitted from the lower surface of the light guide member 212 is incident on the display panel 20 from the upper end surface of the display panel 20. The display panel 20 emits light incident from the upper end surface from the front surface to the outside. As shown in FIG. 2, the light source block 21 is mounted on the upper part of the mounting base 15. Further, the display panel 20 is attached to the mounting base 15 so that the upper end surface faces the lower surface of the light guide member 212 of the light source block 21.

The guide light unit 2 is housed in the housing 10 so that the front surface of the display panel 20 is exposed from the square window 110 provided on the front wall 11 (main portion 1010 of the plate 101) of the housing 10. .. The guide light unit 2 causes light to enter the upper surface of the display panel 20 from the light source block 21 and causes the entire display panel 20 to emit light, thereby increasing the brightness of the front surface of the display panel 20 and improving the visibility of the pictogram.

The emergency light unit 3 has a second LED 30 (see FIG. 3) and a lens 31 that controls the light distribution of the light emitted from the second LED 30 (see FIG. 2). The second LED 30 is, for example, a chip-on-board type white LED for lighting. The lens 31 is formed in a dome shape by inorganic glass such as quartz glass. The lens 31 is exposed to the outside of the housing 10 through an insertion hole 14 provided in the side wall 13 on the lower side of the housing 10 (see FIG. 2).

The storage battery block 5 is configured by wrapping a plurality of dry battery type battery cells in a heat shrink tube. Each battery cell is a storage battery such as a nickel metal hydride battery. The storage battery block 5 is housed on the left side of the mounting base 15 (see FIG. 2).

Next, the circuit configurations of the first circuit block 22 and the second circuit block 4 will be described in detail with reference to FIG.

The first circuit block 22 has a power supply circuit 220 and a first lighting circuit 221. The power supply circuit 220 converts an AC voltage supplied from a regular power supply 9 (for example, a commercial power system) into a DC voltage. The power supply circuit 220 preferably has, for example, a rectifier circuit and a boost chopper circuit.

The first lighting circuit 221 preferably has, for example, a buck-boost chopper circuit. The first lighting circuit 221 steps down the DC voltage supplied from the power supply circuit 220 and outputs it to the two first LEDs 211. The two first LEDs 211 are electrically connected in series between the output ends of the first lighting circuit 221. Further, the first lighting circuit 221 boosts the DC voltage supplied from the emergency power supply 50 and outputs it to the two first LEDs 211 as described later. Further, it is preferable that the first lighting circuit 221 constantizes the current (direct current) flowing through the two first LEDs 211.

The second circuit block 4 includes a charging circuit 40, a control circuit 41, a second lighting circuit 42, a switch 43, a monitor lamp 44, a diode 45, and the like. The charging circuit 40 operates by the DC voltage output from the power supply circuit 220 of the first circuit block 22, and supplies a charging current to the emergency power supply 50 to charge the emergency power supply 50. The emergency power supply 50 is composed of a plurality of battery cells of the storage battery block 5. A monitor lamp 44 is electrically connected between the charging circuit 40 and the positive electrode of the emergency power supply 50. The monitor lamp 44 is preferably composed of, for example, a light emitting diode that emits green light. The monitor lamp 44 emits light by the charging current supplied from the charging circuit 40 to the emergency power supply 50, and indicates that the emergency power supply 50 is being charged.

The second lighting circuit 42 preferably has, for example, a buck-boost chopper circuit. The second lighting circuit 42 boosts or lowers the DC voltage supplied from the emergency power supply 50 and outputs it to the second LED 30. The second LED 30 is electrically connected in series between the output ends of the second lighting circuit 42. Further, it is preferable that the second lighting circuit 42 makes the current (direct current) flowing through the second LED 42 constant.

The switch 43 is inserted in the middle of the power supply path from the positive electrode of the emergency power supply 50 to the first lighting circuit 221 and the second lighting circuit 42. The switch 43 is preferably a semiconductor switching element such as a MOSFET. That is, when the switch 43 is closed (on), power is supplied from the emergency power supply 50 to the first lighting circuit 221 and the second lighting circuit 42 via the power supply path, and the first LED 211 and the second LED 30 are lit. To do. Then, when the switch 43 is open (off), the power supply path from the emergency power supply 50 to the first lighting circuit 221 and the second lighting circuit 42 is cut off. However, a backflow prevention diode 45 is electrically connected between the switch 43 and the first lighting circuit 221.

The control circuit 41 is preferably composed of, for example, a microcontroller. By comparing the output voltage of the power supply circuit 220 with the threshold value, the control circuit 41 determines that the power supply of the regular power supply 9 is stopped (power failure) when the output voltage is less than the threshold value. The control circuit 41 turns off the switch 43 when the normal power supply 9 is not out of power, and turns on the switch 43 when it is determined that the normal power supply 9 is out of power.

Further, the control circuit 41 is electrically connected to the photodiode 48. The control circuit 41 receives (receives) a radio signal using infrared rays as a communication medium with the photodiode 48. The wireless signal is a wireless signal transmitted from a wireless transmitter operated by an operator who inspects the operation of the disaster prevention lighting device 1, and is a wireless signal instructing test lighting. The operation check of the disaster prevention lighting device 1 is carried out, for example, at the time of installation or periodic inspection of the disaster prevention lighting device 1. The periodic inspection of the disaster prevention lighting device 1 is carried out every predetermined period (for example, six months). In the periodic inspection, the first lighting circuit 221 and the second lighting circuit 42 are forcibly operated by the electric power supplied from the emergency power supply 50, and the first LED 211 and the second LED 30 are operated for a specified time (for example, 30 minutes) or more. It is carried out to confirm that the lighting state can be maintained. The wireless signal transmitted from the wireless transmitter is not limited to the wireless signal instructing the test lighting, and controls the disaster prevention lighting device 1 to perform a desired operation (for example, an operation of lighting for a certain period of time). It may be a wireless signal as the content.

Further, the control circuit 41 is electrically connected to two push button switches (first push button switch 46 and second push button switch 47). When the first push button switch 46 is turned on while the regular power supply 9 is not out of power, the control circuit 41 stops the power supply circuit 220 and turns on the switch 43 to carry out test lighting. Further, the control circuit 41 stops the power supply circuit 220 for a few seconds when the second push button switch 47 is turned on in a situation where the regular power supply 9 is not out of power, and after turning on the switch 43, the power supply circuit The 220 is operated again and the switch 43 is turned off.

Here, the first push button for pushing and operating the first push button switch 46 and the second push button 17 for pushing and operating the second push button switch 47 are housed in the housing 10 (see FIG. 1). The first push button switch is located at the back (upper) of the hole 131 provided in the side wall 13 on the lower side of the housing 10, and does not project out of the housing 10. On the other hand, the second push button switch 47 projects to the outside of the housing 10 from the hole 132 provided in the side wall 13 on the lower side of the housing 10. Further, the light radiated from the monitor lamp 44 is emitted to the outside of the housing 10 through the hole 133 provided in the side wall 13 on the lower side of the housing 10. Further, a wireless signal (infrared ray) transmitted from the wireless transmitter is received by the photodiode 48 in the housing 10 through the hole 134 provided in the side wall 13 on the lower side of the housing 10.

Here, in the conventional disaster prevention lighting, the evacuation lighting and the standby lighting are performed by separate appliances (guide lights and emergency lights). On the other hand, the disaster prevention lighting device 1 can perform disaster prevention lighting for both evacuation lighting by the first LED 211 and standby lighting by the second LED 30. As a result, the disaster prevention lighting device 1 can reduce the installation space as compared with the case where the guide light and the emergency light are installed respectively. Moreover, since the disaster prevention lighting device 1 uses one emergency power supply 50 for both the evacuation lighting and the standby lighting, it is compared with the case where the emergency power supply for the evacuation lighting and the emergency power supply for the standby lighting are separately provided. , The size of the housing 10 can be reduced.

Further, the disaster prevention lighting device 1 irradiates the light radiated from the first LED 211 to the front of the housing 10 through the display panel 20, and radiates the light radiated from the second LED 30 to the lower side of the housing 10. Therefore, the disaster prevention lighting device 1 can secure the floor illuminance required for the standby lighting while enhancing the visibility of the guidance sign (pictogram on the front surface of the display panel 20).

By the way, according to the provisions of the Fire Service Act, the guide light needs to be kept on for 20 minutes or more by the power supply from the emergency power supply. According to the provisions of the Building Standards Law, the emergency light needs to be kept on for 30 minutes or more by the power supply from the emergency power supply. Further, in the guide light, an upper limit value and a lower limit value are defined for the average brightness of the display surface of the guide sign. Further, the upper limit value and the lower limit value of the average brightness of the display surface of the guide sign are set to lower values when lit by the emergency power supply than when lit by the normal power supply. As for the emergency light, it is necessary to secure a floor illuminance of 1 lux or more after lighting for 30 minutes.

Therefore, the first lighting circuit 221 sets the amount of light of the first LED211 when the first LED211 is turned on by the electric power supplied from the emergency power supply 50 to the amount of light when the first LED211 is turned on by the electric power supplied from the regular power supply 9. It is preferable to reduce the amount. Further, in the disaster prevention lighting device 1, the first lighting circuit 221 turns off the first LED 211 when the period during which the first LED 211 is turned on by the electric power supplied from the emergency power supply 50 reaches a predetermined lower limit (for example, 20 minutes). It is preferable to let it. Further, it is preferable that the second lighting circuit 42 continues to light the second LED 30 even after the first lighting circuit 221 turns off the first LED 211. However, the first lighting circuit 221 and the second lighting circuit 42 may be controlled by the control circuit 41 to increase or decrease the amount of light of the first LED 211 and the second LED 30 and turn off the light as described above. If the first lighting circuit 221 and the second lighting circuit 42 operate as described above, the speed at which the battery capacity of the emergency power supply 50 decreases can be suppressed.

Further, in the disaster prevention lighting device 1, it is preferable that the second lighting circuit 42 reduces the amount of light of the second LED 30 during the period in which the first lighting circuit 221 lights the first LED 211 with the electric power supplied from the emergency power supply 50. .. Further, it is preferable that the second lighting circuit 42 increases the amount of light of the second LED 30 in the period after the first lighting circuit 221 turns off the first LED 211. If the first lighting circuit 221 and the second lighting circuit 42 operate as described above, the speed at which the battery capacity of the emergency power supply 50 decreases can be further suppressed while ensuring the illuminance of the standby lighting.

As described above, the disaster prevention lighting device (1) according to the first aspect lights the first light source for evacuation lighting (first LED211), the second light source for standby lighting (second LED30), and the first light source. It includes a first lighting circuit (221). The disaster prevention lighting device (1) according to the first aspect includes a second lighting circuit (42) for lighting a second light source, an emergency power supply (50), a first light source, a second light source, and a first lighting circuit (1). 221), a second lighting circuit (42), and a housing (10) for accommodating an emergency power supply (50). The first lighting circuit (221) and the second lighting circuit (42) light the first light source and the second light source with the electric power supplied from at least the emergency power supply (50).

The disaster prevention lighting device (1) according to the first aspect is intended to reduce the installation space as compared with the case where each of the guidance lighting fixture (guide light) and the standby lighting fixture (emergency light) is installed. Can be done.

The disaster prevention lighting device (1) according to the second aspect can be realized in combination with the first aspect. In the disaster prevention lighting device (1) according to the second aspect, the first lighting circuit (221) lights the first light source with the electric power supplied from the ordinary power supply (9), and the electric power supply of the ordinary power supply (9) is supplied. It is preferable to turn on the first light source with the electric power supplied from the emergency power supply (50) when stopped. The second lighting circuit (42) preferably lights the second light source with the electric power supplied from the emergency power supply (50). The first lighting circuit (221) sets the amount of light of the first light source when the first light source is turned on by the electric power supplied from the emergency power supply (50) to the first light source by the electric power supplied from the regular power supply (9). It is preferable that the amount of light is less than the amount of light when lighting.

The disaster prevention lighting device (1) according to the second aspect can suppress the speed at which the battery capacity of the emergency power supply (50) decreases.

The disaster prevention lighting device (1) according to the third aspect can be realized in combination with the second aspect. In the disaster prevention lighting device (1) according to the third aspect, the period in which the first light source is lit by the electric power supplied from the emergency power supply (50) reaches the predetermined upper limit in the first lighting circuit (221). Then, it is preferable to turn off the first light source. It is preferable that the second lighting circuit (42) continues to turn on the second light source even after the first lighting circuit (221) turns off the first light source.

The disaster prevention lighting device (1) according to the third aspect can extend the duration of standby lighting.

The disaster prevention lighting device (1) according to the fourth aspect can be realized in combination with the third aspect. In the disaster prevention lighting device (1) according to the fourth aspect, in the second lighting circuit (42), the first lighting circuit (221) lights the first light source with the electric power supplied from the emergency power supply (50). It is preferable to reduce the amount of light from the second light source during the period. Further, the second lighting circuit (42) preferably increases the amount of light of the second light source during the period after the first lighting circuit (221) turns off the first light source.

The disaster prevention lighting device (1) according to the fourth aspect can further suppress the speed at which the battery capacity of the emergency power supply 50 decreases while ensuring the illuminance of the standby lighting.

The disaster prevention lighting device (1) according to the fifth aspect can be realized by combining with any one of the first to fourth aspects. In the disaster prevention lighting device (1) according to the fifth aspect, it is preferable that the display panel (20) is provided on the front surface of the housing (10). It is preferable that the light emitted from the first light source is emitted to the front of the housing (10) through the display panel (20). It is preferable that the light emitted from the second light source is emitted below the housing (10).

The disaster prevention lighting device (1) according to the fifth aspect can secure the floor illuminance required for the standby lighting while ensuring the visibility of the guidance lighting.

1 Disaster prevention lighting device 9 Regular power supply 10 Housing 20 Display panel 30 2nd LED (2nd light source)
42 Second lighting circuit 50 Emergency power supply 211 First LED (first light source)
221 1st lighting circuit

Claims (5)

The first light source for evacuation lighting and
A second light source for standby lighting and
The first lighting circuit that lights the first light source and
A second lighting circuit for lighting the second light source and
With emergency power supply
It includes the first light source, the second light source, the first lighting circuit, the second lighting circuit, and a housing for accommodating the emergency power supply.
The first lighting circuit and the second lighting circuit light the first light source and the second light source with at least the electric power supplied from the emergency power supply.
Disaster prevention lighting device. The first lighting circuit lights the first light source with the electric power supplied from the regular power supply, and lights the first light source with the electric power supplied from the emergency power supply when the power supply of the regular power supply is stopped. Let me
The second lighting circuit lights the second light source with the electric power supplied from the emergency power supply.
The first lighting circuit lights the first light source with the electric power supplied from the emergency power supply to reduce the amount of light of the first light source when the first light source is turned on with the electric power supplied from the emergency power supply. Less than the amount of light when
The disaster prevention lighting device according to claim 1. The first lighting circuit turns off the first light source when the period during which the first light source is turned on by the electric power supplied from the emergency power supply reaches a predetermined upper limit.
The second lighting circuit continues to turn on the second light source even after the first lighting circuit turns off the first light source.
The disaster prevention lighting device according to claim 2. The second lighting circuit reduces the amount of light of the second light source while the first lighting circuit is lighting the first light source with the electric power supplied from the emergency power supply, and the first lighting circuit causes the first lighting circuit. The amount of light from the second light source is increased during the period after the first light source is turned off.
The disaster prevention lighting device according to claim 3. A display panel is provided on the front surface of the housing.
The light emitted from the first light source is radiated to the front of the housing through the display panel.
The light emitted from the second light source is emitted below the housing.
The disaster prevention lighting device according to any one of claims 1 to 4.

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