JP5906419B2 - Emergency lighting equipment - Google Patents

Emergency lighting equipment Download PDF

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Publication number
JP5906419B2
JP5906419B2 JP2012153725A JP2012153725A JP5906419B2 JP 5906419 B2 JP5906419 B2 JP 5906419B2 JP 2012153725 A JP2012153725 A JP 2012153725A JP 2012153725 A JP2012153725 A JP 2012153725A JP 5906419 B2 JP5906419 B2 JP 5906419B2
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emergency
unit
part
light
light source
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JP2014017116A (en
Inventor
俊伸 大森
俊伸 大森
晋司 小出
晋司 小出
猛 陣内
猛 陣内
敦志 入川
敦志 入川
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パナソニックIpマネジメント株式会社
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Description

  The present invention relates to an emergency lighting fixture.

  2. Description of the Related Art Conventionally, buildings and the like have been provided with emergency lighting fixtures that are turned on in the event of an external power supply emergency such as a commercial power failure that occurs when a disaster such as a fire or earthquake occurs.

  As an emergency lighting apparatus of this type, an LED emergency light 100 including an LED main body 106 that houses an LED 102, a lens 103, a battery 105, and a lighting unit 108 and a circular frame 121 that exposes the lens 103 shown in FIG. Known (for example, Patent Document 1).

  In the LED emergency light 100 of Patent Document 1, a lighting device 104 for lighting the LED 102 is provided in the lighting unit 108. Although not shown, the lighting unit 108 is provided with a charging circuit that charges the battery 105 and a switching circuit that connects the battery 105 and the lighting device 104 during a power failure. The lighting unit 108 is provided with an inspection switch for confirming whether or not the LED 102 is lit during a power failure, and a charging monitor that is lit when the battery 105 is fully charged. In the LED emergency light 100, the base body 107 is fixed to the bottom surface 106a of the instrument main body 106 so that the LED 102 is disposed at the center of the base body 107 and the LED 102 is positioned on the central axis of the instrument main body 106.

  In the LED emergency light 100 of Patent Document 1, a hole 122 through which the exit end 103b of the lens 103 is exposed is provided at the center of the outer surface 121a of the circular frame 121 (see FIG. 6B). Further, the LED emergency light 100 is provided with a slit-like opening 123 through which the drawstring 117 is drawn out at an intermediate portion between the center portion and the outer periphery of the outer surface 121a of the circular frame 121. Further, the LED emergency light 100 is provided with a small hole 124 facing the charging monitor at an intermediate portion between the center portion and the outer periphery of the circular frame 121. In the LED emergency light 100, the light of the LED 102 incident from the concave incident end 103a of the lens 103 is refracted and emitted in a direction away from the central axis of the lens 3 at the substantially flat emission end 103b.

  In the LED emergency light 100 of Patent Document 1, a circular frame 121 that abuts the periphery of the opening 119 is provided on the lower surface of the tubular instrument body 106 so that the LED emergency light 100 can be attached to the opening 119 of the ceiling 118. The instrument body 106 has a plurality of leaf springs 120 attached to the outer peripheral surface of the instrument body 106. In the LED emergency light 100, after the instrument main body 106 is inserted into the opening 119 of the ceiling 118, the instrument main body 106 is fixed to the ceiling 118 by pressing the back surface 118 a of the ceiling 118 by the elasticity of the leaf spring 120.

JP 2005-129517 A

  By the way, the emergency lighting apparatus is used in an emergency, and it is preferable that the emergency lighting apparatus is further downsized so as not to impair the indoor scenery where the emergency lighting apparatus is installed.

  However, the LED emergency light 100 needs to be configured to ensure a circular hole 122, a small hole 124, and a slit-shaped opening 123 on the outer surface 121a of the circular frame 121, and the LED emergency light 100 can be downsized. Is difficult.

  Therefore, the configuration of the LED emergency light 100 of Patent Document 1 described above is not sufficient and further improvement is required.

  This invention is made | formed in view of the said reason, The objective is to provide the emergency lighting fixture which can be reduced in size further.

The emergency lighting apparatus of the present invention includes a light source unit, an emergency power source that can be charged by power supply from an external power source, and the light source unit that receives power from the emergency power source in the event of an emergency of the external power source. A lighting circuit unit for lighting, a notification unit for informing a state of the emergency power source, an inspection switch unit for starting inspection of the emergency power source, at least the light source unit, the emergency power source, and the lighting circuit unit An emergency lighting apparatus including a built-in instrument body having an opening at one end and an annular frame body covering the opening of the instrument body, the frame body having an outer shape in plan view Is provided with an irradiation window for irradiating the light from the light source part to the outside inside the circular shape, and the irradiation window has a part of the edge of the irradiation window in the plan view in the plan view. Virtually similar to the outline of the frame body along the outline The other part of the edge in the irradiation window opposite to the part of the edge is at least the center side of the virtual circle rather than the virtual circle. there are being formed in a curved shape protruding in a direction away from the circular center of the virtual to, the above notification unit and the test switch section, in plan view, outside of the irradiation window in the upper Kiwakutai unit It is arrange | positioned and it is provided on the opposite side to the said part of the said irradiation window in the said frame part with respect to the said virtual circular center .

  In this emergency lighting fixture, the fixture main body is either a lens portion that refracts light from the light source portion or a reflection portion that reflects light from the light source portion toward the outside of the fixture main body. It is preferable that the light from the light source part is emitted from the center part in plan view of the frame body part.

  The emergency lighting apparatus of the present invention has an effect that it is possible to provide an emergency lighting apparatus that can be further downsized.

It is a schematic plan view of the emergency lighting fixture of Embodiment 1. It is a schematic sectional drawing of the emergency lighting fixture of Embodiment 1. FIG. It is a disassembled perspective view of the emergency lighting fixture for comparison with the emergency lighting fixture of Embodiment 1. FIG. It is a schematic sectional drawing of the emergency lighting fixture of Embodiment 2. FIG. It is a schematic sectional drawing of the emergency lighting fixture of Embodiment 3. It is the conventional LED emergency light, (a) is a schematic partial longitudinal cross-sectional view, (b) is a schematic bottom view.

(Embodiment 1)
Hereinafter, the emergency lighting fixture 10 of this embodiment is demonstrated based on FIG. 1 and FIG. In addition, in the figure, the same number is attached | subjected with respect to the same member.

  The emergency lighting apparatus 10 of the present embodiment includes a light source unit 1 and an emergency power source 2 that can be charged in a normal state by supplying power from an external power source (for example, a commercial power source or an external generator). The emergency lighting apparatus 10 includes a lighting circuit unit 3 that receives power from the emergency power source 2 in an emergency such as a power failure of the external power source and lights the light source unit 1 (see FIG. 2). The emergency lighting fixture 10 of the present embodiment includes a notification unit 4 that notifies the state of the emergency power source 2 and an inspection switch unit 5 that starts the inspection of the emergency power source 2. The emergency lighting fixture 10 of the present embodiment includes a fixture main body 6 that contains at least a light source unit 1, an emergency power source 2, and a lighting circuit unit 3 and has an opening 6a at one end. The emergency lighting fixture 10 of the present embodiment includes an annular frame body portion 7 that covers the opening 6 a of the fixture body 6.

The frame body portion 7 of the emergency lighting apparatus 10 has a circular outer shape in plan view, and includes an irradiation window 7a that irradiates light from the light source unit 1 to the outside inside the circular shape. The irradiation window 7a has a part of a virtual circle (not shown) in which the edge portion 7aa of the irradiation window 7a resembles the outer shape of the frame body portion 7 along the outer shape of the frame body portion 7 in plan view. It is composed. Further, the irradiation window 7a is configured such that the other part 7ab of the edge in the irradiation window 7a opposite to the part 7aa of the edge is at least the virtual circle rather than the virtual circle via the center of gravity G of the irradiation window 7a. It is formed in a curved shape that protrudes in the direction away from the virtual circular center O on the center O side. In emergency lighting fixture 10, a test switch unit 5 and the notification unit 4, in plan view, it is disposed on the outside of the irradiation window 7a of the frame 7, with respect to the circular center O of the virtual frame body The part 7 is provided on the side opposite to the part 7aa of the irradiation window 7a .

  Thereby, the emergency lighting fixture 10 of this embodiment can be further downsized.

  More specifically, the emergency lighting apparatus 10 of the present embodiment includes a bottomed cylindrical apparatus body 6 having an opening 6a at one end. The emergency lighting apparatus 10 uses an LED as a semiconductor light emitting element as the light source unit 1. In the emergency lighting device 10, a wiring board 11 on which the LED of the light source unit 1 is mounted on the one surface 11 a side is provided so as to close the opening 6 a of the device body 6 inside the device body 6. The instrument body 6 is provided with a pair of annular protrusions 6b that project toward the interior of the instrument body 6 along the depth direction of the instrument body 6 (the vertical direction of the paper surface of FIG. 2). The instrument main body 6 holds the wiring board 11 on the instrument main body 6 with the end portion of the wiring board 11 sandwiched between the pair of projecting portions 6 b and 6 b. For example, when the wiring board 11 is a circular flat plate, the outer diameter of the wiring board 11 is slightly larger than the inner diameter of the opening 6 a of the instrument body 6 so that the wiring board 11 can be held by the pair of protrusions 6 b and 6 b of the instrument body 6. A small circular shape may be used. Further, the wiring board 11 is provided with an inspection switch portion 5 for starting the inspection of the emergency power source 2 on the one surface 11a side. Similarly, the wiring board 11 is also provided with a notification unit 4 that notifies the state of the emergency power supply 2 on the one surface 11a side. The circuit board constituting the control unit 15 is mounted on the wiring substrate 11 on the other surface 11b side facing the one surface 11a. The control unit 15 includes a lighting circuit unit 3 for lighting the light source unit 1. Although not shown, the control unit 15 also includes a charging control circuit unit that controls charging of the emergency power supply 2 and a power failure detection circuit unit that detects a power failure of external power.

  The wiring board 11 includes a terminal block 12 on the other surface 11b side of the wiring board 11 that can be electrically connected to a power cord (not shown) for receiving power from the external power source in a normal state. Furthermore, the wiring board 11 is provided with an emergency power source 2 capable of supplying power to the light source unit 1 in the emergency of the external power source on the other surface 11b side of the wiring board 11. The control unit 15 electrically connected to the terminal block 12 is supplied with electric power from the external power source and supplies power to the emergency power source 2 and charges the secondary battery constituting the emergency power source 2 in normal times. ing. The wiring board 11 includes a wiring pattern (not shown) on the one surface 11a side on which the light source unit 1 is mounted, and a wiring pattern (not shown) on the other surface 11b side on which circuit components constituting the control unit 15 are mounted. Is not electrically connected via a through wiring (not shown). In the emergency lighting fixture 10 of the present embodiment, the light source unit 1, the notification unit 4, and the inspection switch unit 5 are mounted on the one surface 11a side, and the control is mounted on the other surface 11b side of the wiring substrate 11. The circuit components of the unit 15 and the terminal block 12 are integrated.

  Note that the emergency lighting fixture 10 has a circuit board (not shown) that is a part of the circuit components constituting the control unit 15 in accordance with the shape of the circuit parts constituting the control unit 15. May not be implemented). When using the circuit board, the emergency lighting apparatus 10 may have a structure in which the wiring board 11 on which the light source unit 1 is mounted and the circuit board are electrically connected.

  The emergency lighting fixture 10 is provided with an annular frame body portion 7 on the fixture body 6 so as to cover the opening 6 a of the fixture body 6. The frame body part 7 is provided with an irradiation window 7a for irradiating the light from the light source part 1 to the outside in a plan view. The frame body portion 7 includes a cylindrical holding frame 7 d that is smaller than the outer shape of the frame body portion 7. The frame body portion 7 is detachably integrated with the instrument body 6 by inserting a cylindrical holding frame 7 d into the opening 6 a of the instrument body 6 and abutting against the inner surface of the instrument body 6.

  The frame body portion 7 is provided with a bowl-shaped reflecting portion 8 that surrounds the light source portion 1 on the wiring substrate 11 held by the instrument body 6 and extends outward. The reflecting portion 8 has a slightly larger outer shape in plan view, with the outer shape of the reflecting portion 8 being substantially the same shape as the edge of the irradiation window 7a. The reflecting unit 8 can be used for controlling the light distribution of the light emitted from the light source unit 1 depending on the shape of the reflecting unit 8. The frame body portion 7 includes a lens portion 9 that refracts light from the light source portion 1 and emits the light to the outside with a predetermined light distribution characteristic. The lens unit 9 has an outer shape of the lens unit 9 substantially the same as the edge of the irradiation window 7a in plan view.

  That is, in the emergency lighting fixture 10 of the present embodiment, the fixture main body 6 reflects the lens portion 9 that refracts the light from the light source portion 1 and the light that reflects the light from the light source portion 1 toward the outside of the fixture main body 6. Part 8. The instrument main body 6 emits light from the light source unit 1 from the central part of the frame body part 7 in plan view. In addition, in the emergency lighting fixture 10 of this embodiment, the center part in the planar view of the frame part 7 and the said virtual circular center O which said edge part 7aa in the irradiation window 7a comprises correspond. Yes. Moreover, the emergency lighting fixture 10 of this embodiment arrange | positions the light source part 1 in the said virtual circular center O in planar view, and is trying for the optical axis X of the light source part 1 to pass the center O. FIG.

  The emergency lighting fixture 10 of the present embodiment uses an LED for the light source unit 1. The emergency lighting apparatus 10 includes a lens unit 9 and a reflection unit 8 as compared with a light source unit 1 using a halogen bulb or the like because the LED itself can be downsized as compared with a halogen bulb or the like. However, it is relatively easy to reduce the size.

  By the way, the emergency lighting fixtures 10 are equipped with a plurality of emergency lighting fixtures 10 to illuminate indoors and passages so that people who are present can evacuate quickly and safely in the event of a power failure due to a fire or other unexpected accident. There is a case. Therefore, the emergency lighting fixture 10 is arranged by appropriately designing the installation locations and installation intervals of the plurality of emergency lighting fixtures 10.

  In the emergency lighting fixture for comparison shown in FIG. 3, the irradiation window 7 a provided in the frame body portion 7 has a circular shape similar to the outer shape of the frame body portion 7 at the center of the frame body portion 7. Therefore, the emergency lighting fixture shown in FIG. 3 can irradiate light in a positive circular shape that is axisymmetric with respect to the optical axis of the light source unit 1 on the irradiated surface side of the emergency lighting fixture. Therefore, in the emergency lighting fixture for comparison, it is easy to design the installation location and the installation interval of the emergency lighting fixture. In the emergency lighting apparatus shown in FIG. 3, the power cord 14 for receiving power from the external power source is electrically connected to the control unit 15 integrated in the emergency power source 2.

  However, in the emergency lighting apparatus shown in FIG. 3, the outer shape of the irradiation window 7 a is a regular circle in a plan view, and is related to the arrangement location of the detection unit 4 and the inspection switch unit 5 provided in the frame body unit 7. It is difficult to make the emergency lighting fixture 10 small.

In contrast, the frame body portion 7 of the emergency lighting apparatus 10 of the present embodiment has a circular outer shape in plan view, and an irradiation window 7a that irradiates light from the light source unit 1 to the outside inside the circular shape. I have. The irradiation window 7 a constitutes a part of the virtual circle in which the part 7 aa of the edge of the irradiation window 7 a resembles the outer shape of the frame body part 7 along the outer shape of the frame body part 7 in plan view. . Further, the irradiation window 7a is configured such that the other part 7ab of the edge in the irradiation window 7a opposite to the part 7aa of the edge via the center of gravity G of the irradiation window 7a is the center of the virtual circle rather than the virtual circle. It is formed in a curved shape that protrudes in the direction away from the virtual circular center O on the O side. In the emergency lighting device 10 of the present embodiment, the center of gravity G of the irradiation window 7a refers to the position of the center of mass on a virtual flat plate having the shape of the irradiation window 7a. In emergency lighting fixture 10, a test switch unit 5 and the notification unit 4, in plan view, it is disposed on the outside of the irradiation window 7a of the frame 7, with respect to the circular center O of the virtual frame body It is kicked set on the opposite side of the part 7aa of the irradiation window 7a in section 7.

  The emergency lighting apparatus 10 of the present embodiment has the irradiation window 7a that occupies a large area in the frame body portion 7 as compared with the detection unit 4 and the inspection switch unit 5 as shown in FIG. Compared to the illustrated emergency lighting fixture, the overall size of the emergency lighting fixture 10 can be reduced.

  In the emergency lighting device 10, light is irradiated in a distorted shape that is axially asymmetric with respect to the optical axis X of the light source unit 1 on the irradiated surface of the emergency lighting device 10 due to the shape of the irradiation window 7 a. There is a case. The emergency lighting fixture 10 secures a predetermined illuminance at the installation locations and intervals of the plurality of emergency lighting fixtures 10 when light is radiated in a distorted shape on the irradiated surface of the emergency lighting fixture 10. It can be difficult to design. Further, the emergency lighting fixture 10 has a predetermined illuminance at the installation locations and intervals of the plurality of emergency lighting fixtures 10 when light is irradiated in a distorted shape on the irradiated surface of the emergency lighting fixture 10. In order to ensure, it is necessary to adjust and install the emergency lighting fixture 10 with respect to the optical axis. Therefore, in the emergency lighting fixture 10 that irradiates light in a distorted shape on the irradiated surface of the emergency lighting fixture 10, the installation of the emergency lighting fixture 10 may be complicated.

  In the emergency lighting apparatus 10 of the present embodiment, as shown in FIG. 2, the thickness of the lens unit 9 faces the light source unit 1 in order to spread the light emitted from the light source unit 1 and obtain a predetermined light distribution characteristic. The light incident surface 9b side is formed into a concave-convex surface with a hollow light exit surface 9a side being a smooth surface. Further, in the lens portion 9, the radius of curvature of the lens on the light incident convex surface 9c on the part 7aa side in the irradiation window 7a is made larger than the radius of curvature of the lens on the light incident convex surface 9d on the other portion 7ab side. Similarly, the reflection portion 8 has different radii of curvature in a plurality of stages (here, three stages) so that light from the light source part 1 spreads to the other part 7ab side rather than the part 7aa side in the irradiation window 7a in a cross-sectional view. It is formed in a bowl shape with The reflecting portion 8 and the lens portion 9 of the emergency lighting fixture 10 of the present embodiment can irradiate the light incident on the central portion of the lens portion 9 from the light source portion 1 to the outside by being refracted or guided to the side. it can. In the emergency lighting fixture 10, the horizontal illuminance on the floor surface within a predetermined radius from directly below the emergency lighting fixture 10 is set to a predetermined illuminance (for example, 1 lx) or more.

  The emergency lighting fixture 10 of the present embodiment is configured such that the light from the light source unit 1 irradiated from the irradiation window 7a having a specific shape using the reflecting unit 8 or the lens unit 9 is, for example, a regular circle on the irradiated surface side. It is possible to control. In the emergency lighting fixture 10 of the present embodiment, it is designed to determine whether a predetermined illuminance can be secured at the installation interval even when the emergency lighting fixture 10 is installed or a plurality of emergency lighting fixtures 10 are installed. It will be easier on the top. Moreover, the emergency lighting fixture 10 of this embodiment becomes relatively easy to install without considering the shape of the irradiated surface irradiated from the emergency lighting fixture 10.

  In the emergency lighting apparatus 10 of the present embodiment, for example, by designing the lighting window 7a to have a specific shape, the lighting window 7a itself that the evacuee illuminates with the illumination light even when the surrounding field of view decreases due to smoke or the like. There is a case where a specific shape of the irradiation window 7a can be recognized by visual recognition. In the emergency lighting fixture 10 of the present embodiment, it is possible to guide the refugee to evacuate toward the direction of a specific shape in the irradiation window 7a using the shape of the irradiation window 7a.

  In addition, the instrument main body 6 is provided with the outer collar part 6c extended outward from the opening edge of the opening part 6a of the instrument main body 6. FIG. In addition, the fixture body 6 is provided with a plurality of plate-like attachment springs 13 used when the emergency lighting fixture 10 is fixed to the ceiling material C as a construction material. The attachment spring 13 is fixed to the outer side surface 6aa of the instrument body 6 with one end portion 13a of the attachment spring 13 having an L-shape on the instrument body 6 side by screws (not shown). The emergency lighting fixture 10 of the present embodiment is inserted into a mounting hole C1 penetrating the ceiling material C, and the ceiling material C is sandwiched between the plurality of mounting springs 13 and the outer flange portion 6c of the fixture body 6. And fix. The mounting spring 13 is preferably provided on the outer surface 6aa of the instrument body 6 in order to place the emergency lighting instrument 10 inside the mounting hole C1 penetrating the ceiling material C, which is a construction material. Depending on the installation form of the emergency lighting apparatus 10, this is not always necessary.

  In the construction of the emergency lighting fixture 10, the emergency lighting fixture 10 first electrically connects the terminal block 12 to the power cord. Next, the emergency lighting device 10 is in a state where the other end 13b of each attachment spring 13 provided on the outer side surface 6aa of the device body 6 is pushed down so as to approach the outer surface 6aa side of the device body 6. The material C is inserted into the mounting hole C1. When the emergency lighting fixture 10 is pushed into the mounting hole C1 until the outer flange portion 6c of the fixture main body 6 comes into contact with the peripheral portion of the mounting hole C1 in the ceiling material C, the other end 13b side of the mounting spring 13 is placed on the fixture main body 6. It opens in the direction away from the outer side surface 6aa. The emergency lighting fixture 10 has a part of the attachment spring 13 elastically contacted with the peripheral portion of the attachment hole C1, and the ceiling material C is sandwiched between the part of the attachment spring 13 and the outer flange portion 6c of the appliance main body 6. It can be attached to the ceiling material C.

  Hereinafter, each structure of the emergency lighting fixture 10 of this embodiment is explained in more detail.

  The light source unit 1 supplies power from the emergency power source 2 in the event of an emergency where the power from the external power source cannot be supplied due to a power outage of the external power source or when a power cord for supplying power from the external power source burns out. It can be illuminated when received. For example, a halogen light bulb, an organic EL, an LD, or an LED can be used as the light source unit 1. Compared with the case where a halogen light bulb is used for the light source unit 1, the light source unit 1 uses an organic EL, an LED, or the like, thereby reducing the size of the light source unit 1 itself and the entire emergency lighting apparatus 10. It is also possible to contribute to this.

  The light source unit 1 is, for example, a color converter that contains an LED chip that emits blue light or ultraviolet light, and a particulate phosphor that is excited by light energy emitted from the LED chip and emits light having a longer wavelength. It can be set as the structure provided with the member. As the phosphor, for example, a phosphor that emits yellow light having a broad emission wavelength range excited by blue light, or three types of phosphors that can emit blue, green, and red when excited by ultraviolet rays are used. Can do. The light source unit 1 can irradiate mixed color light such as white light by using, for example, an LED chip that emits blue light and a color conversion member that contains a phosphor that emits yellow light.

More specifically, the light source unit 1 can be configured by including an LED chip using a gallium nitride-based compound semiconductor such as InGaN that emits blue light in a light emitting layer. The light source unit 1 includes phosphors such as (Sr, Ba) 2 SiO 4 activated by Eu, Y 3 Al 5 O 12 activated by Ce, and Tb 3 Al 5 O 12 activated by Ce. It can comprise and comprise the said color conversion member contained in the translucent material.

  Further, the light source unit 1 is a translucent member that does not contain a phosphor instead of using the color conversion member, and is a red LED chip that emits red light, a green LED chip that emits green light, and a blue light that emits blue light. As a configuration including an LED chip, white light can be emitted. Such an LED constituting the light source unit 1 can be surface-mounted and electrically connected to the wiring pattern on the one surface 11a of the wiring board 11 by reflow soldering or the like. In addition, the light source unit 1 may be an LED chip that is a bare chip, or may be a surface-mounted light emitting diode that is covered with a package made of synthetic resin or the like and is provided with lead terminals for power supply outside. Good.

  The emergency power source 2 can use a secondary battery such as a nickel cadmium battery or a nickel hydride battery. Further, the emergency power source 2 may be a single secondary battery, or a plurality of secondary batteries connected in series, parallel, or series-parallel. Such an emergency power supply 2 is used as an assembled battery in which unit cells are connected with a nickel plate or the like, arranged in various arrangements, packed with a heat-shrinkable tube or a resin case, and lead wires, connectors, and tab terminals are connected. You can also.

  The lighting circuit unit 3 can turn on the light source unit 1 based on the power supplied from the emergency power source 2 in the event of an emergency of the external power source. The emergency lighting device 10 only needs to be able to light the light source unit 1 by receiving power supply from the emergency power source 2 in the event of an emergency of the external power source. The lighting circuit unit 3 includes, for example, a rectifying / smoothing unit (not shown) that rectifies AC power supplied from the external power supply in a normal state and then smoothes and outputs a DC current. The lighting circuit unit 3 includes a constant current power supply unit (not shown) that supplies a direct current from the rectifying and smoothing unit as a constant current suitable for the LED of the light source unit 1. The lighting circuit unit 3 can be configured to include a microcomputer equipped with an appropriate control program for controlling the constant current power supply unit. Note that the lighting circuit unit 3 can also be configured to control the lighting of the notification unit 4. The lighting circuit unit 3 can be configured to be built in the control unit 15. The control unit 15 also includes a lighting circuit unit 3, a charge control circuit unit that controls charging of the emergency power source 2, and a power failure detection circuit unit that detects a power failure of the external power source.

  When the power failure of the external power source is detected by the power failure detection circuit unit, the emergency lighting fixture 10 is turned off by the microcomputer of the lighting circuit unit 3 to bring the emergency power source 2 from the charged state. Switching to power supply to the light source unit 1 is performed. In the emergency lighting device 10, the light source unit 1 is lit by receiving power from the emergency power source 2.

  The notification unit 4 can notify the state of the emergency power supply 2. The alerting | reporting part 4 can be comprised using LED, a light bulb, etc., for example. For example, when a green LED is used for the notification unit 4, the emergency lighting device 10 can notify the state of the emergency power supply 2 by the lighting state of the green LED. The emergency lighting device 10 turns off the green LED when the emergency power source 2 is disconnected and the emergency power source 2 and the lighting circuit unit 3 are not electrically connected. In the emergency lighting device 10, when the battery capacity of the emergency power source 2 is not sufficient to light the light source unit 1 with the emergency power source 2 in an emergency, the lighting circuit unit 3 blinks the green LED.

  For example, when the emergency lighting apparatus 10 is supplied with power from the external power source and the power failure detection circuit unit does not detect the emergency of the external power source, the charging control circuit unit is connected to the emergency power source 2. Based on the voltage at both ends, the state of charge of the emergency power supply 2 can be determined. In the emergency lighting apparatus 10, when the charge control circuit unit detects that the voltage between both ends of the emergency power supply 2 is equal to or higher than a predetermined voltage, the lighting circuit unit 3 lights up the green LED serving as the notification unit 4. To control. Moreover, in the emergency lighting fixture 10, for example, when the voltage at both ends of the emergency power supply 2 cannot be detected by the charging control circuit unit, such as when the emergency power supply 2 is not connected, the lighting circuit unit 3 turns off the green LED. In the emergency lighting apparatus 10, when the charge control circuit unit determines that the life of the emergency power source 2 is based on the voltage across the emergency power source 2, the lighting circuit unit 3 causes the green LED to blink. For example, when the emergency power supply 2 is inspected, the charge control circuit unit switches from a charged state of the emergency power supply 2 to a discharge state to a pseudo load (not shown) composed of an appropriate resistor or the like. The charge control circuit unit measures, for example, a voltage between terminals of the emergency power supply 2 when a predetermined time has elapsed, and the measured voltage is a predetermined voltage that is determined in advance so that the emergency power supply 2 has an appropriate value. If it is above, what is necessary is just to judge that the emergency power supply 2 is appropriate. In addition, the above-described charging control circuit unit may be configured to use the emergency power supply 2 if the measured voltage between the terminals of the emergency power supply 2 is less than a predetermined voltage due to high impedance caused by overdischarge. Can be determined as the lifetime.

  The inspection switch unit 5 may be anything that can start the inspection of the emergency power supply 2. The inspection switch unit 5 can be configured to include, for example, an input unit that can output an inspection start signal for starting an inspection of the emergency power supply 2. The inspection switch unit 5 may use a pushbutton type inspection switch 5a or a semiconductor light receiving element capable of outputting the inspection start signal in response to a signal such as a wireless or infrared signal from an external remote controller. it can. Moreover, as the inspection switch 5a of the inspection switch unit 5, a mechanical switch associated with a drawstring may be used. The lighting circuit unit 3 receives the input of the lighting start signal from the inspection switch unit 5, switches the emergency power source 2 from the charged state to the power supply state to the light source unit 1, and sets the voltage after a predetermined time has elapsed. taking measurement. The lighting circuit unit 3 may be displayed on the notification unit 4 according to the state of the emergency power source 2.

  The appliance main body 6 can incorporate at least the light source unit 1, the emergency power source 2, and the lighting circuit unit 3. The instrument body 6 can be formed into a bottomed cylindrical shape using, for example, a metal material (such as aluminum or stainless steel) or various resin materials. The shape of the instrument body 6 is not limited to the bottomed cylindrical shape, and may be a bottomed rectangular cylinder shape or a bowl shape.

  The frame part 7 covers the opening 6a of the instrument body 6 and is detachably fixed to the instrument body 6 so that light from the light source unit 1 can be emitted. The frame portion 7 can be formed using a metal material such as aluminum or a synthetic resin material. The frame body portion 7 includes an irradiation window 7a that irradiates light from the light source unit 1 to the outside. The irradiation window 7 a may be a through-hole penetrating the frame body part 7 or a translucent window material covering the through-hole penetrating the frame body part 7. The frame body part 7 can also be configured so that the reflecting part 8 and the lens part 9 can be suitably held.

  The reflection unit 8 is preferably provided to reflect the light from the light source unit 1 so as to go outside the instrument body 6. The reflecting portion 8 can be configured using, for example, an appropriate metal material such as stainless steel as the material of the reflecting portion 8.

  The lens unit 9 is preferably provided in order to refract the light from the light source unit 1 to obtain a predetermined light distribution. For example, glass or acrylic resin can be used for the lens unit 9 as the material of the lens unit 9. The lens unit 9 can also function as a window material for the irradiation window 7a.

(Embodiment 2)
The emergency lighting fixture 10 of the present embodiment shown in FIG. 4 is mainly different in that it includes only the reflecting portion 8 instead of the lens portion 9 and the reflecting portion 8 of the first embodiment shown in FIG. In addition, in the figure, the same member as Embodiment 1 is attached with the same number, and the description is omitted.

  As shown in FIG. 4, the emergency lighting fixture 10 of the present embodiment is provided with a bowl-shaped reflecting portion 8 that surrounds the light source portion 1 on the wiring board 11 held by the fixture body 6 and extends outward. . The reflection unit 8 has an axially asymmetric shape with respect to the optical axis X of the light source unit 1. In the emergency lighting fixture 10 of the present embodiment, the reflection unit 8 is configured to have an optical axis of the light source unit 1 in order to spread the light emitted from the light source unit 1 in a circular shape with respect to the irradiated surface of the emergency lighting fixture 10. The shape is axisymmetric with respect to X.

  Although not shown in the drawings, the reflection portion 8 is formed in a similar shape in which the portion 7aa side of the irradiation window 7a is slightly larger than the portion of the virtual circle according to the shape of the irradiation window 7a in plan view. The reflection portion 8 has a curved shape in which the other portion 7ab side of the irradiation window 7a is closer to the virtual circle center O side than the virtual circle and protrudes away from the virtual circle center O in plan view. Forming.

  Further, in the sectional view, the reflecting portion 8 has a radius of curvature of the inner side surface 8e on the part 7aa side in the irradiation window 7a larger than that of the inner side surface 8f on the other side 7ab side, and is different from that on the part 7aa side. It is formed in a bowl shape so that light from the light source unit 1 spreads on the 7ab side.

  Thereby, the emergency lighting fixture 10 of this embodiment controls the light from the light source part 1 irradiated from the irradiation window 7a of a specific shape using the reflection part 8 on the irradiated surface side, for example, in a regular circle or the like. It is possible to do.

In emergency lighting fixture 10 of the present embodiment, a test switch unit 5 and the notification unit 4, in plan view, it is disposed outside the irradiation window 7a of the frame 7, with respect to the circular center O of the virtual, By providing the frame body part 7 on the side opposite to the part 7aa of the irradiation window 7a , the emergency lighting apparatus 10 can be further downsized.

  Moreover, in the emergency lighting fixture 10 of this embodiment, the light irradiated from the light source part 1 is made into a regular circle, for example, on the irradiated surface side, and the floor surface within a predetermined radius from immediately below the emergency lighting fixture 10. The horizontal plane illuminance is configured to be a predetermined illuminance (for example, 1 lx) or more.

(Embodiment 3)
The emergency lighting fixture 10 of the present embodiment shown in FIG. 5 is mainly different from the first embodiment shown in FIG. 1 in that only the lens portion 9 is provided instead of the lens portion 9 and the reflecting portion 8 of the first embodiment. In addition, in the figure, the same member as Embodiment 1 is attached with the same number, and the description is omitted.

  The emergency lighting fixture 10 of this embodiment is provided with the lens part 9 which surrounds the light source part 1 on the wiring board 11 hold | maintained at the instrument main body 6 through space, as shown in FIG. The lens unit 9 has an axially asymmetric shape with respect to the optical axis X of the light source unit 1. In the emergency lighting fixture 10 of the present embodiment, the lens unit 9 has an optical axis of the light source unit 1 in order to spread the light emitted from the light source unit 1 in a circular shape with respect to the irradiated surface of the emergency lighting fixture 10. The shape is axisymmetric with respect to X.

  Although not shown in the drawings, the lens portion 9 is formed in a similar shape in which the portion 7aa side of the irradiation window 7a is slightly smaller than the virtual circular portion in accordance with the shape of the irradiation window 7a in plan view. The reflection portion 8 has a curved shape in which the other portion 7ab side of the irradiation window 7a is closer to the virtual circle center O side than the virtual circle and protrudes away from the virtual circle center O in plan view. Forming.

  In addition, the lens unit 9 is formed in a biconcave shape including a light incident concave surface 9e and a light emitting concave surface 9f in which the thickness of the lens unit 9 is recessed on the center side on the optical axis X of the light source unit 1 in a cross-sectional view. ing. Further, the lens portion 9 has a radius of curvature at the surface of the convex lens portion 9g on the part 7aa side in the lens portion 9 from the central portion side to the outer side, and the radius of curvature of the convex lens portion 9h on the other portion 7ab side. It is formed in a larger uneven surface shape. The lens unit 9 is formed in a bowl shape so that the light from the light source unit 1 spreads to the other part 7ab side rather than the part 7aa side.

  Thereby, the emergency lighting fixture 10 of this embodiment controls the light from the light source part 1 irradiated from the irradiation window 7a of a specific shape using the reflection part 8 on the irradiated surface side, for example, in a regular circle or the like. It is possible to do. In addition, in the emergency lighting fixture 10 of this embodiment, in order to use the light from the light source part 1 effectively, the frame part 7 is suitably provided with the side wall part 7e surrounding the lens part 9.

In emergency lighting fixture 10 of the present embodiment, a test switch unit 5 and the notification unit 4, in plan view, it is disposed outside the irradiation window 7a of the frame 7, with respect to the circular center O of the virtual, By providing the frame body part 7 on the side opposite to the part 7aa of the irradiation window 7a , the emergency lighting apparatus 10 can be further downsized.

  Moreover, in the emergency lighting fixture 10 of this embodiment, the light irradiated from the light source part 1 is made into a regular circle, for example, on the irradiated surface side, and the floor surface within a predetermined radius from immediately below the emergency lighting fixture 10. The horizontal plane illuminance is configured to be a predetermined illuminance (for example, 1 lx) or more.

O Center G Center of Gravity 1 Light Source 2 Emergency Power Supply 3 Lighting Circuit 4 Notification Unit 5 Inspection Switch 6 Instrument Main Body 6a Opening 7 Frame Body 7a Irradiation Window 8 Reflector 9 Lens 10 Emergency Lighting Equipment

Claims (2)

  1. A light source unit, an emergency power source that can be charged by power supply from an external power source, a lighting circuit unit that turns on the light source unit upon receiving power from the emergency power source in the event of an emergency of the external power source, and the emergency power source An informing unit for informing a state of an emergency power source, an inspection switch unit for starting an inspection of the emergency power source, an instrument having at least one of the light source unit, the emergency power source, and the lighting circuit unit and having an opening at one end An emergency lighting apparatus comprising a main body and an annular frame body portion covering the opening of the apparatus main body,
    The frame body portion has a circular outer shape in a plan view, and an irradiation window that irradiates light from the light source portion to the outside inside the circular shape,
    The irradiation window is a virtual circular part in which a part of an edge of the irradiation window is similar to the outer shape of the frame body part along the outer shape of the frame body part in a plan view, and at least of the irradiation window The other part of the edge of the irradiation window on the side opposite to the part of the edge via the center of gravity is closer to the center of the virtual circle than the virtual circle and away from the center of the virtual circle It is formed in a curved shape protruding to
    Wherein A notification unit and the test switch section, in plan view, front Kiwakutai is disposed on the outside of the irradiation window in the unit with respect to the circular center of the virtual, of the irradiation window in the frame portion An emergency lighting apparatus, wherein the emergency lighting apparatus is provided on a side opposite to the part .
  2.   The instrument body includes at least one of a lens part that refracts light from the light source part and a reflection part that reflects light from the light source part toward the outside of the instrument body, and the frame body. The emergency lighting apparatus according to claim 1, wherein light from the light source part is emitted from a central part in a plan view of the part.
JP2012153725A 2012-07-09 2012-07-09 Emergency lighting equipment Active JP5906419B2 (en)

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JP4222011B2 (en) * 2002-11-28 2009-02-12 東芝ライテック株式会社 LED lighting fixtures
US7118244B2 (en) * 2004-03-05 2006-10-10 Kurtz John D Emergency light
JP5142018B2 (en) * 2007-10-24 2013-02-13 東芝ライテック株式会社 Lighting device
JP5173501B2 (en) * 2008-03-12 2013-04-03 三菱電機株式会社 Lighting device and emergency lighting device

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