JP5816664B2 - Emergency light and lighting device with emergency light - Google Patents

Description

  The present invention relates to an emergency light for displaying and guiding an evacuation route in an emergency.

As the emergency light, there is an emergency light that automatically lights up at the time of a power failure and displays an exit direction and an evacuation route light.
There is an emergency light that has a built-in battery power supply so that it can operate even in the event of a power failure, and as its battery, a rechargeable secondary battery or a non-chargeable primary battery is used. There is something.
In general, the secondary battery is installed in a commercial facility, public facility, building, etc., and the secondary battery is charged from a commercial power source such as 100 VAC during a normal time other than a power failure. It is comprised so that it may be lighted using the said secondary battery at the time of a power failure.

Japanese Patent Laid-Open No. 7-211101

The one shown in Patent Document 1 or the like can adopt a primary battery. When the current of the AC power supply is flowing, the current of the primary battery of the portable lamp is OFF, and the primary of the portable lamp is a power failure. A relay switch that turns on the battery current is provided.
What employ | adopted the said primary battery is generally a thing for households, and assumes that it installs in the house of a general household. In the case where such a primary battery is adopted, a primary battery such as a dry battery is adopted, and the battery needs to be replaced with a new primary battery and renewed before the capacity of the primary battery is reduced.

However, if the battery update timing is missed, there is a problem that the emergency light does not turn on when a power failure occurs.
On the other hand, if the battery is updated early in order to prevent the battery update timing from being missed, there is a problem that the battery update cost increases more than necessary.
Therefore, the present invention proposes an emergency light having a function of notifying the optimum timing for renewal of the primary battery.

Emergency light according to the onset Ming, a primary battery, a display lamp, the emergency light with a lighting control means for lighting the indicator lamp the primary battery as a power source at the time of power failure of the commercial power supply, based on the commercial power source and a light emitting diode as given a power supply circuit that outputs a DC voltage, said power supply circuit and a notification unit that will be connected in series between the primary battery Te, the light emitting diode, the power supply circuit - light emitting diodes -The primary battery-The anode is interposed on the power circuit side and the cathode is on the primary battery side so that a forward current flows in the path of the power circuit. by comparing the terminal voltage of the voltage between the primary battery, and lights up when their voltage difference became larger Ri by lighting forward voltage of the light emitting diodes to notify the voltage reduction of the primary battery And wherein the door.

Moreover, the emergency light according to the present invention, the light emitting diode is further characterized in that a diode for voltage drops in series connected in the forward direction.
Moreover, the emergency light according to the present invention, the light emitting diode is further resistor for fine adjustment current limit is characterized Rukoto are connected in series.

Furthermore, the proof device according to the present invention includes a lighting device having a built-in emergency light including a primary battery, an indicator lamp, and a lighting control means for turning on the indicator lamp using the primary battery as a power source when a commercial power supply fails. in the emergency light includes a power supply circuit for outputting a predetermined DC voltage on the basis of the commercial power source, and a light emitting diode as notification means that will be connected in series between said power supply circuit and the primary battery, The light emitting diode is interposed such that the anode is on the power supply circuit side and the cathode is on the primary battery side so that a forward current flows through the path of the power supply circuit-the light emitting diode-the primary battery-the power supply circuit. by being a light emitting diode, it compares the terminal voltage of the DC voltage and the primary battery, which voltage difference is larger Ri by lighting forward voltage of the light emitting diode Lit, characterized by informing a voltage drop of the primary battery.

Next, an outline of the characteristics of the light emitting diode will be described.
As an electrical characteristic of the light emitting diode, for example, there is a characteristic that a forward current I flows when the forward voltage is V, and as an optical characteristic, for example, there is a characteristic that a light beam L is obtained when the forward current is I.
FIG. 2 shows, as an example, (a) If-Vf characteristics (forward current-forward voltage characteristics).
(B) F-If characteristics (light flux-forward current characteristics)
The outline of was shown.
In the present invention, when it is desired to set the luminous flux in a state where the light emitting diode as the notification means is lit, the forward voltage V for flowing the forward current I at that time is set as the lighting forward voltage.

According to emergency light according to the present invention, the terminal voltage decreases primary battery is depleted natural discharge or the like, when the voltage difference between the DC voltage produced from the commercial power supply in the power supply circuit is larger than the lighting order of the light emitting diode Since the light emitting diode is lit and informed, the battery can be replaced at an appropriate timing by recognizing that it is time to replace the primary battery.
Therefore, in the event of an emergency, it is possible to solve the problem that the battery is exhausted and the emergency light is not useful. Further, since it is not necessary to replace the battery until notification is made, it is possible to eliminate the waste of replacing the battery earlier as soon as possible.
The broadcast knowledge means, between the power supply circuit and the primary battery, and the light-emitting diodes that are connected in series in the forward direction, the above effect can be obtained with an inexpensive circuit is very simple.
Moreover, according to the lighting fixture which concerns on this invention, the existing lighting fixture can be acquired by the said effect.

It is a block diagram of Example 1 of an emergency light concerning the present invention. It is explanatory drawing explaining the outline | summary of the characteristic of a light emitting diode. It is a block diagram of Example 2 of an emergency light concerning the present invention. It is a block diagram of Example 3 of an emergency light according to the present invention. It is a bottom view of the lighting fixture which attached Example 4 of the emergency light which concerns on this invention. It is the schematic of Example 4 of the emergency light which concerns on this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing the emergency light which concerns on this invention is demonstrated with reference to drawings which showed the structure of the Example.

FIG. 1 is a block diagram of an emergency light according to the first embodiment.
In the figure, reference numeral 1 denotes an emergency light, which includes a power supply circuit 2 to which a commercial power supply 100V is supplied.
The power supply circuit 2 is configured to output a DC voltage V1 for relay driving and a DC voltage V2 for battery deterioration notification.

The operation as an emergency light that is turned on in the event of a power failure will be described below.
At normal times when there is no power failure, the relay 3 is configured to forcibly open the relay contact 31 by exciting the relay coil by the DC voltage V1. That is, the relay contact 31 is a b contact (break contact). In the emergency light 1, since the relay contact 31 is in the normal state, the drawing shows the state in which the contact is open.
In the state where the relay contact 31 is open, the normal voltage E of the primary battery 4 is not supplied to the indicator lamp 5, so that the indicator lamp 5 as an emergency lamp is extinguished.

However, when the commercial power is not supplied by the power failure or the like, the supply of the DC voltage V1 to the relay 3 is stopped, the relay coil is not energized, the relay contact 31 is found close I by the spring.
Therefore, the normal voltage E of the primary battery 4 is supplied to the indicator lamp 5 through the relay contact 31, the indicator lamp 5 as an emergency lamp is turned on, and guides the evacuation exit etc. in the event of a power failure. It can be done.
In this way, the emergency light 1 is configured to operate as an emergency light.

Next, the notification means that is a feature of the emergency light according to the present invention will be described.
As explained above, since the indicator lamp is lit by the primary battery at the time of a power failure, if the primary battery is inadequate due to exhaustion, etc. It cannot be turned on and does not function as an emergency light at all.
However, it is useless to replace the battery early because the deterioration of the primary battery is concerned too much.
Therefore, the present invention realizes a function for notifying the timing of battery replacement when the voltage of the primary battery decreases due to exhaustion or the like.

In the block of FIG. 1, reference numeral 6 denotes a light emitting diode as a notification means which is a feature of the present invention.
The light emitting diode 6, the positive terminal of the DC voltage V2 for the battery deterioration indicator, is interposed in a forward direction between the positive terminal of the primary battery 4 are connected in series.
The anode of the light emitting diode 6 is connected to the + terminal of the DC voltage V2, the cathode of the light emitting diode 6 is connected to the-terminal of the DC voltage V2, and is connected in series in the forward direction .

An outline of the characteristics of the light emitting diode 6 is shown in FIG.
As can be seen from FIGS. 2A and 2B, the forward current If tends to flow rapidly before and after the predetermined forward voltage Vf, and the brightness of the light-emitting diode 6 is increased to be in the lighting state. The forward voltage at this time is a lighting forward voltage α.

Next, the relationship between the DC voltage V2, the lighting forward voltage α, and the terminal voltage E when the primary battery is normal will be described.
At the terminal voltage E when the primary battery is normal, the DC voltage V2 needs to be lower than E + α so that the light emitting diode 6 does not light.
V2 <E + α
However, in order for the light emitting diode 6 to light up when the terminal voltage of the primary battery drops below the replacement timing voltage Ex, the DC voltage V2 needs to be higher than Ex + α. (Thus, the forward voltage of the light emitting diode 6 is turned on higher than the lighting voltage α.)
Ex + α <V2
Therefore, in general, it can be expressed as Ex + α <V2 <E + α.

For example, the normal terminal voltage E of the primary battery E = 1.5 × 2 = 3.0 (V)
Replacement time voltage Ex = 2.4 (V) (assuming 20% deterioration)
Lighting voltage α = 2.1 (V)
In the case of Ex + α <V2 <E + α
2.4 + 2.1 <V2 <3.0 + 2.1
That is, the DC voltage V2 needs to be set to a voltage between 4.5 (V) and 5.1 (V).
The above calculation is merely an example, and it may be necessary to appropriately adjust according to the actual circuit configuration, the characteristics of the elements to be used, and variations.

As described above, the light-emitting diode 6 as the notification means does not light up when the terminal voltage of the primary battery 4 is normal, but lights up when the terminal voltage of the primary battery 4 falls below the replacement timing voltage Ex. Therefore, the optimal replacement timing of the primary battery can be notified.
Therefore, it can operate reliably as an emergency light in the event of a power failure, and can guide an evacuation exit or the like.

Next, an emergency light 1B according to the second embodiment will be described with reference to the block diagram shown in FIG.
In the second embodiment, the power supply circuit is divided into two systems.
In FIG. 2, the power supply circuit 2B is divided into a power supply 21B for driving the relay and a power supply 22B for driving the notification means.
The power source 21B for driving the relay simply includes a bridge rectifier circuit and a smoothing capacitor, and is configured to output the DC voltage V1.
The power supply 22B for driving the notification means includes a voltage stabilizing circuit 23B in addition to a bridge rectifier circuit and a smoothing capacitor, and is configured to output a DC voltage V2 stabilized to DC 5V.

In FIG. 3 , a light-limiting diode 6B serving as a notification unit is connected in series with a current-limiting resistor 6R that can be finely adjusted and a voltage drop diode 61B.
As the indicator lamp 5, a high-intensity light emitting diode is adopted.
Since the DC voltage V2 is a slightly high voltage of 5V, the light emitting diode 6B may be lit even if the primary battery 4 is not deteriorated unless the voltage drop diode 61B is used.
Therefore, 5V of the DC voltage V2 is lowered to an appropriate voltage using the forward voltage drop characteristic of the voltage drop diode 61B.
Further, the forward voltage applied to the light emitting diode 6B is finely adjusted using the current limiting resistor 6R, and the light emitting diode 6B is set to light only when the primary battery is deteriorated.

Next, an emergency light 1C according to the third embodiment will be described with reference to the block diagram shown in FIG.
In the second embodiment, a part of the two power supply circuits is shared.
In FIG. 4, the power transformer and the bridge rectifier circuit include only one set of the common rectifier circuit 2C, and the relay drive DC voltage V1 is directly output from the rectifier circuit 2C.
The DC voltage V2 for driving the notification means is configured so that the output of the rectifier circuit 2C is stabilized to a DC voltage of 5V by a smoothing capacitor and a voltage stabilization circuit 23C.
The other parts are almost the same as those in the second embodiment.

Next, as shown in FIG. 5, the emergency light 1 </ b> D according to the fourth embodiment is detachably added to the conventional general lighting fixture 10 and can be installed.
The emergency light 1D of the fourth embodiment includes an emergency light having substantially the same configuration as that of the first to third embodiments in a small container and can be mounted inside a conventional general lighting fixture 10.
For example, a commercial power supply is taken out from the inside of a conventional general lighting fixture 10 and includes a high-intensity light-emitting diode 5D as an emergency light and a light-emitting diode 6D as a notification means for notifying the timing of battery replacement.

As a notification means to notify the timing of battery replacement, remove the nightlight provided in conventional general lighting fixtures, take out the commercial power supply from its socket, jujube bulb as nightlight, high-intensity light-emitting diode as emergency light, and battery replacement The light emitting diode is preferably provided.
Specifically, as shown in FIG. 6, for example, a commercial power source may be taken out from a nightlight socket using an E12 dummy base 24D.
By doing in this way, it is possible to upgrade the function of the lighting device including the night light 11, the emergency light 5D, and the light emitting diode 6D indicating the battery replacement timing without replacing the conventional lighting fixture.
What is necessary is just to adjust the external shape and fixing method of emergency light 1D of Example 4 according to the lighting fixture 10 of the attachment object.

DESCRIPTION OF SYMBOLS 1 Emergency light 2 Power supply circuit 3 Relay 31 Relay contact 4 Primary battery 5 Indicator light 6 Notification means, light emitting diode 1B Emergency light 21B Relay drive power supply 22B Notification means drive power supply 6B Notification means, light emitting diode 1C Emergency light 6C Notification Means, light emitting diode 1D Emergency light 6E Notification means, light emitting diode

Claims (4)

In an emergency light comprising a primary battery, an indicator lamp, and a lighting control means for lighting the indicator lamp with the primary battery as a power source in the event of a power failure of a commercial power source,
A power supply circuit that outputs a predetermined DC voltage based on the commercial power supply;
And a light emitting diode as notification means that will be connected in series between said power supply circuit and the primary battery,
The light emitting diode is interposed such that the anode is on the power supply circuit side and the cathode is on the primary battery side so that a forward current flows through the path of the power supply circuit-the light emitting diode-the primary battery-the power supply circuit. by being, light emitting diodes, by comparing the terminal voltage of the DC voltage and the primary battery, and lights up when their voltage difference became larger Ri by lighting forward voltage of the light emitting diode, emergency lights, wherein the benzalkonium be reported to the voltage drop of the primary battery. Wherein the light emitting diode may further emergency light according to claim 1 Symbol mounting, characterized in that a diode for voltage drops in series connected in the forward direction. Wherein the light emitting diode may further emergency light according to claim 1 or 2, wherein the resistance for the tunable current limit is equal to or that will be connected in series. In a lighting fixture incorporating an emergency light comprising a primary battery, an indicator lamp, and a lighting control means for lighting the indicator lamp with the primary battery as a power source when a commercial power supply fails.
The emergency light is
A power supply circuit that outputs a predetermined DC voltage based on the commercial power supply;
And a light emitting diode as notification means that will be connected in series between said power supply circuit and the primary battery,
The light emitting diode is interposed such that the anode is on the power supply circuit side and the cathode is on the primary battery side so that a forward current flows through the path of the power supply circuit-the light emitting diode-the primary battery-the power supply circuit. by being, light emitting diodes, by comparing the terminal voltage of the DC voltage and the primary battery, and lights up when their voltage difference became larger Ri by lighting forward voltage of the light emitting diode, luminaire, wherein the benzalkonium be reported to the voltage drop of the primary battery.

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