JP3241949U7 - Battery type fire extinguisher lighting display device - Google Patents

Description

In the present invention, there is no lighting at the place where the fire extinguisher is installed, so when the light goes out due to a power failure, etc., the location of the fire extinguisher cannot be found. It is necessary to install a lighting device to inform the public.

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Document 1

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The installation of conventional fire extinguishers did not have a lighting system, and it was difficult to find the installation during a power outage. For that reason, it is a device that uses a battery as a power source and has a built-in lighting device so that the installation location can be clearly identified.

A brightness sensor is used in the fire extinguisher pictogram light-emitting device to take in external light, and when the outside is bright, the power is controlled to control the lighting of the LED to be dark, and since power consumption is suppressed, it can be lit for a long time using dry batteries.

The present invention separates the lighting time and the operating time of the luminance sensor. This is because if the lighting time and the brightness sensor operating time are always set, the brightness sensor will detect brightness information even during self-luminescence. It becomes impossible to detect a dark installation place where the brightness is lower than the self-luminance brightness. To avoid this, the lighting time and the operating time of the luminance sensor are separated.

Since the present invention uses a battery, it can be used in places where there is no commercial power source, such as where a fire extinguisher is installed, and no power source is available.

In the present invention, a luminance sensor is installed in the device to detect the luminance of the environment and control the lighting and extinguishing in order to keep lighting for a long time even if the lighting is at low luminance considering the capacity of the dry battery.

Description of Figure 1

In the present invention, the self-luminous time is defined as A time, and the luminance sensor operating time is defined as B time.

Fig. 1 explains the fire extinguisher lighting system

FIG. 1A is a luminance sensor amplifier circuit.

FIG. 1B shows a luminance LED drive circuit.

FIG. 1, C is an LED and luminance sensor circuit.

FIG. 1, D is an LED and brightness sensor drive waveform generation circuit.

Fig. 1, E is a power supply battery circuit.

FIG. 2 shows a reference diagram of the light emitting part.

Figures 2 and 1 are connectors for connecting batteries.

Figures 2 and 2 are LEDs.

2 and 3 are luminance sensors.

2 and 4 are printed circuit boards.

2 and 5 show the light guide plate unit.

Figures 2 and 6 show the resin case.

FIG. 3 is an explanatory waveform diagram of time for detection and operation by the LED light emitting unit, luminance, and sensor.

According to the waveform diagram in FIG. 3, time a is the LED lighting time, and time b is the luminance sensor operating time.

By dividing the detection and operation by the LED light emitting part, the luminance, and the sensor according to the time, the luminance sensor detects only external light.

If only external light is detected, the detection brightness level can be freely set regardless of the brightness of the LED light emitting section.

FIG. 1 is a block diagram of a dry battery type fire extinguisher lighting device. FIG. 2 is a reference diagram of a dry battery type fire extinguisher lighting device. FIG. 3 is a switching signal that drives the operation of the LED and luminance sensor according to time.

Description will be made below with reference to FIG.

In FIG. 1, current is supplied from the E battery and the circuit begins to operate.

In FIG. 1, a signal detecting brightness is sent from C to A.

In FIG. 1, B drives an LED by a signal sent from A, and the LED lights up.

In FIG. 1, D produces a switching signal that drives the operation of the LED and luminance sensor according to time.

Explanation of Fig. 1 A Luminance sensor amplifier B LED driver C LED and luminance sensor D LED, luminance sensor switching signal generator E Power supply battery Fig. 2 explanation 1 Connector 2 LED
3 Luminance sensor 4 Printed circuit board 5 Light guide plate 6 Description of case diagram 3 a LED lighting time b Luminance sensor operating time