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Emergency lighting up apparatus

A lighting device and emergency technology, which is applied in the direction of lighting devices, lamp circuit layout, light source, etc., can solve the problems of high power consumption, inability to guide light output for evacuation, etc., and achieve the effect of ensuring light output

Inactive Publication Date: 2015-11-25
TOSHIBA LIGHTING & TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, during emergency lighting such as power outages, although it is required to maintain the output of a specified luminous flux for a specified time or longer, when the emergency lighting circuit outputs a constant current, the following situation may occur: the light source with a larger luminous f

Method used

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Examples

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Example Embodiment

[0055] Below, refer to Figure 1 to Figure 3 The configuration of an embodiment will be described.

[0056] figure 1 Among them, 11 is an emergency lighting device, and the emergency lighting device 11 is an emergency lighting device used for an emergency appliance such as a guide light or an emergency light.

[0057] The emergency lighting device 11 is capable of attaching and detaching the light source module 12, and includes a power supply unit 13 as a normal lighting circuit, a battery B as a backup power source, and an emergency light unit 14 as an emergency circuit.

[0058] The light source module 12 includes a light emitting element 15. The light-emitting element 15 is, for example, a light-emitting diode (LED) light source, and is configured by connecting LEDs 15a as a plurality of element bodies in series. In addition, the light-emitting element 15 can be attached to and detached from the emergency equipment (the power supply unit 13 and the emergency light unit 14) via t...

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PUM

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Abstract

The invention provides an emergency lighting up apparatus which can guarantee light output required at emergency lighting up without overly increasing capacity of a backup power source, with respect to all kinds of light-emitting elements having different luminous flux. The emergency lighting up apparatus (11) can selectively assemble and unassemble light-emitting elements (15) having different light output or light-emitting elements having different applied voltages. The emergency lighting up apparatus includes a power source unit (13), a battery (B), and an emergency lighting up circuit (26). The power source unit lights up a light-emitting element by using an external power source when the external power source (e) is not in black out. The emergency lighting up circuit lights up the light-emitting element by using the battery when the external power source is in black out, and when the light output of the assembled light-emitting element is increasing or the applied voltage of the light-emitting element is increasing, converts current from the battery to smaller current, and outputs the current to the light-emitting element.

Description

technical field [0001] The present invention relates to an emergency lighting device including a normal lighting circuit for lighting a light-emitting element using an external power supply, and an emergency lighting circuit for lighting the light-emitting element using a backup power supply. Background technique [0002] In the past, there were the following emergency lighting devices: including: a constant current circuit that uses an external power source such as a commercial power supply (commercial AC power supply), that is, a normal-time lighting circuit, and a backup power supply such as a battery when the external power supply fails. Emergency lighting circuit that turns on the light source. [0003] Such an emergency lighting device switches the connection of the light source from a normal lighting circuit to an emergency lighting circuit when detecting a power failure of the external power supply, thereby enabling lighting of the light source in an emergency such a...

Claims

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Application Information

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IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 辻俊雄
Owner TOSHIBA LIGHTING & TECH CORP
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