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Emergency lamp

A technology of emergency lights and chargers, applied in the field of emergency lights, can solve the problems of large charging loss, large internal resistance, and limited charge and discharge times, and achieve the effects of short charging time, enhanced practicability, and low charging loss

Inactive Publication Date: 2006-08-02
胡建坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The charging time of rechargeable batteries is long, the number of charging and discharging is limited, and the capacity decreases with the increase of charging times; and its internal resistance is large, and the charging loss is large. When the power is almost exhausted, it cannot be used again quickly; rechargeable batteries and disposable batteries are not easy to recycle , and easily cause environmental pollution
Moreover, fluorescent lamps or incandescent lamps have short service life and low efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one, such as figure 1 As shown, an emergency light includes a driving circuit 1 and a light-emitting element 2. The driving circuit 1 includes a supercapacitor 11, a controllable switch 13 and a voltage stabilizing circuit 12, and the supercapacitor 11 and the stabilizing circuit 12 can be connected in series. The control switch 13 is connected to the light-emitting element 2 at the output end of the voltage stabilizing circuit 12, and the supercapacitor is used as an energy storage element to store electric energy. The supercapacitor 11 drives the light-emitting element 2 to emit light through the voltage stabilizing circuit 12.

[0029] The light emitting element 2 is an array of light emitting diodes. The light-emitting diodes can be divided into multiple groups, which is convenient to adjust the brightness by connecting the number of groups; the brightness can also be adjusted by changing the driving current, but the efficiency is low.

[0030] The contr...

Embodiment 2

[0032] Embodiment two, such as figure 2 As shown, the difference from Embodiment 1 is that it also includes a probe circuit 5, the probe circuit 5 is connected to the controllable switch 13, the brightness detection signal output by the probe circuit 5 controls the controllable switch 13, and the probe circuit 14 receives When there is a power failure signal, or when it is detected that the brightness is lower than the set value and needs to be illuminated, the controllable switch 13 is connected, and the emergency light works.

Embodiment 3

[0033] Embodiment three, such as image 3 As shown, the difference from Embodiment 1 is that it further includes a display circuit 3 connected to the supercapacitor 11, and displays the charge of the supercapacitor 11 through voltage sampling. Since the voltage of the supercapacitor decreases linearly during use, the display circuit 3 can reflect the charge of the supercapacitor in real time, which is convenient for controlling whether the emergency light needs to be charged.

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Abstract

An emergency lamp consists of luminous element and driving circuit formed by super capacitor, controllable switch and stabilized voltage circuit .It is featured as series-connecting controllable switch between super capacitor and input end of stabilized voltage circuit, connecting output end of stabilized voltage circuit to luminous element and driving luminous element by super capacitor through stabilized voltage circuit.

Description

technical field [0001] The invention relates to an emergency light and an emergency light with a charger. Background technique [0002] Known emergency lights use rechargeable batteries or disposable batteries to drive light-emitting elements, such as fluorescent lamps or incandescent lamps, through a driving circuit. Rechargeable batteries generally include lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries and lithium batteries. [0003] The charging time of rechargeable batteries is long, the number of charging and discharging is limited, and the capacity decreases with the increase of charging times; and its internal resistance is large, and the charging loss is large. When the power is almost exhausted, it cannot be used again quickly; rechargeable batteries and disposable batteries are not easy to recycle , and easily cause environmental pollution. Moreover, fluorescent lamps or incandescent lamps have short service life and low efficiency....

Claims

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Application Information

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IPC IPC(8): H05B37/00H05B33/08H02J7/00H05B44/00
CPCY02B20/346Y02B20/30
Inventor 胡建坤
Owner 胡建坤
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