JP4178448B2 - Disaster prevention lighting device and disaster prevention lighting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting device for disaster prevention lighting and a disaster prevention lighting device such as an emergency light and a guide light.
[0002]
[Prior art]
Conventionally, various lighting devices for disaster prevention lighting have been proposed. Among these, the output of the normal power source is converted to a high frequency by the first high frequency generator and the discharge lamp is turned on. In the emergency, the output of the emergency power source is converted to a high frequency by the second high frequency generator. What discharges a discharge lamp is disclosed. (For example, refer to Patent Document 1.)
[0003]
Moreover, such a prior art is prescribed | regulated by the Fire Service Act to start the second high-frequency generator, which is an emergency lighting device, when the regular power source is reduced from 85% to 40%. Is. Therefore, when the second high frequency generator is activated, the switching means acts so that the discharge lamp is turned on by the second high frequency generator.
[0004]
[Patent Document 1]
JP 2002-237392 A (page 2-3, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in the conventional technique, for example, a relay is used for the switching unit of the switching means, and the second high frequency generator is used when the normal power source becomes emergency when the contacts are in a closer state or the like. There is a possibility that the output from the leakage from the switching contact which is not originally connected to the first high frequency generator side. In such a state, since the oscillation of the first high-frequency generator is continued even in an emergency, a leak current is input from the direction opposite to the output direction. There is a risk that the generator may malfunction.
[0006]
In addition, since a voltage is always applied to each switching point such as a relay even in an emergency, the load on the switching unit is large.
[0007]
The present invention has been made in view of the above, and it is possible to prevent a failure of the first high-frequency generator even when switching to an emergency, and to improve the reliability of the switching means for disaster prevention lighting. It aims at providing a lighting device and a disaster prevention lighting device.
[0008]
[Means for Solving the Problems]
The lighting device for disaster prevention lighting according to claim 1, wherein the output variable first high-frequency generator for turning on the discharge lamp by converting the output of the normal power source to a high frequency; and when the output of the normal power source becomes 85% or less A second high-frequency generator for lighting the discharge lamp by converting the output of the emergency power supply to a high frequency; and a first high-frequency generator and a second high-frequency generator for supplying power to the discharge lamp according to the state of the normal power supply A switching means for switching to any of the devices; a monitoring means for monitoring the voltage of the normal power supply, and the monitoring means is a reference in which the voltage of the normal power supply is set to a value higher than 85 percent of the normal power supply voltage When it is detected that the value is lower than the value, the oscillation of the first high frequency generator is forcibly stopped, and the monitoring means controls the first high frequency generator to oscillate when the voltage of the common power supply is equal to or higher than the reference value. Control means ;
It is characterized by comprising.
[0009]
According to the present invention, first, during normal use, the output from the normal power supply is converted to high frequency by the first high frequency generator to light the discharge lamp. However, when the output of the regular power supply becomes 85% or less, the switching lamp is switched so that the power to the discharge lamp is supplied from the second high frequency generator, so that the discharge lamp is lit in an emergency. Further, when the output of the normal power source does not exceed the reference value, the control means forcibly stops the oscillation of the first high frequency generator.
[0010]
In the present invention, when the output of the normal power supply reaches 85%, the oscillation of the first high-frequency generator is stopped, and the first output is performed unless the output from the normal power supply exceeds at least 85%. The oscillation of the high frequency generator is continuously stopped.
[0011]
According to the first aspect of the present invention, the discharge lamp; and the first variable frequency output high-frequency generator that turns on the discharge lamp by converting the output of the normal power supply to a high frequency; the output of the normal power supply is 85% or less. A second high-frequency generator that turns on the discharge lamp by converting the output of the emergency power supply to a high frequency; and the first high-frequency generator and the second high-frequency generator according to the state of the normal power supply A switching means for switching to one of the high frequency generators; and a monitoring means for monitoring the voltage of the normal power supply, wherein the monitoring means is set to a value higher than 85% of the normal power supply voltage of the normal power supply. When it is detected that the frequency falls below the reference value, the oscillation of the first high frequency generator is forcibly stopped, and the monitoring means causes the first high frequency generator to oscillate when the voltage of the common power supply is equal to or higher than the reference value. Control means to control ; By equipped with a, is possible to suppress the causing also problems with the first high-frequency generator as an output from the first of the second high-frequency generator by mistake to the high-frequency generator is input in emergency it can.
[0012]
Further, since the voltage is applied only to the second high frequency generator side of the switching unit in an emergency, the load on the switching unit can be reduced and the reliability of the switching unit can be improved.
[0013]
According to the disaster prevention lighting fixture of claim 2, the lighting device main body; and the lighting device for disaster prevention lighting according to claim 1 provided on the lighting device main body are provided.
[0014]
In the present invention, the “disaster lighting fixture” is a concept including a guide light and an emergency lighting fixture, and the “guide light” clearly indicates the position of the blame and the blame direction for people in the building. Refers to lighting equipment. “Emergency lighting equipment” is a lighting equipment provided so that lifesaving and fire-fighting activities can be easily performed in the event of a power failure due to a disaster or accident such as an earthquake or fire. A room, corridor, staircase, etc. that illuminates with a specified brightness.
[0015]
According to invention of Claim 2, it has the effect of Claim 1.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a circuit diagram showing a lighting device for disaster prevention lighting according to the present embodiment, and FIG. 2 is a perspective view showing a disaster prevention lighting fixture according to the present invention.
[0017]
In each figure, 1 is an AC power source that is a normal power source, 2 is a rectifying and smoothing unit, 3 is a control means, 4 is a normal lighting circuit that is a first high-frequency generating circuit, 5 is a charge / power failure detection unit, and 6 is an emergency power source. , 7 is an emergency lighting circuit as a second high frequency generator, 8 is a switching means, and 9 is a common / emergency discharge lamp (fluorescent lamp).
[0018]
The AC power source 1 is connected to the regular lighting unit 10 and the emergency lighting unit 20.
[0019]
The regular lighting unit 10 includes a rectifying / smoothing unit 2, a control unit 3, and a regular lighting circuit 4. First, the rectifying / smoothing unit 2 is provided so that power from the AC power supply 1 is supplied.
[0020]
The rectifying / smoothing unit 2 can be appropriately configured using a smoothing capacitor 21 and a rectifying device 22.
[0021]
And the control means 3 is provided in the output side of the rectification / smoothing part 2 so that the electric power rectified / smoothed may be input.
[0022]
The control means 3 monitors the voltage of the input power, and when the voltage input to the control means 3 is at least 85% of the normal use compared to the normal use, the normal lighting circuit 4 described later. The oscillation is forcibly stopped. In addition, if it has such an effect | action, the control means 3 may be comprised from what kind of member.
[0023]
The regular lighting circuit 4 is connected to the output side of the control means 3, and the output is variable. In addition, the regular lighting circuit 4 can use a one-stone or two-stone inverter or the like as appropriate.
[0024]
The emergency lighting unit 20 includes a charging / power failure detection unit 5, a battery 6, and an emergency lighting circuit 7. First, power is supplied from the AC power supply 1 to the charging / power failure detection circuit 5.
[0025]
For example, the charging / power failure detection circuit 5 can be realized by a configuration including a known step-down transformer and a full-wave rectifier, and a direct current is output. Moreover, the power failure detection circuit can be realized using a known voltage relay. The power failure detection circuit of the present embodiment switches the contact point of the battery switching unit 61 to which the input terminal of the emergency lighting circuit 7 and a battery 6 described later are connected from 61a to 61b when a power failure is detected. The means 8 acts so that electric power is supplied to the discharge lamp 9 from the emergency lighting circuit 7 instead of the regular lighting circuit 10.
[0026]
The battery 6 is made of a nickel cadmium battery, and is connected between the DC output terminals of the charging / power failure detection circuit 5. The battery 6 may be a storage battery made of other materials such as a nickel / hydrogen battery, and may be any battery as long as it functions as an emergency power source. Needless to say, the charging circuit is appropriately used according to the emergency power source.
[0027]
The emergency lighting circuit 7 is based on a high frequency lighting system having an inverter as a main component.
[0028]
The switching unit 8 includes switching units 80 and 81 that are relays, and switching contacts 80a, 80b, 81a, and 81b are provided, respectively.
[0029]
The switching units 80 and 81 are provided such that the switching contacts 80 a and 81 a are on the output side of the regular lighting circuit 4, and the switching contacts 80 b and 81 b are provided on the output side of the emergency lighting circuit 7.
[0030]
In the normal use of the present embodiment, in the normal lighting unit 10, the power from the AC power source 1 is rectified and smoothed by the rectifier 22 and the smoothing capacitor 21, and the power output from the rectifying / smoothing unit 2 is sent to the control means 3. input. Of the electric power input to the control means 3, the control means 3 monitors the voltage, and when the normal voltage (for example, 100V) is 100%, the input voltage is equal to or higher than a reference value (at least 85%). If the value is equal to or greater than the above value, the normal lighting circuit 4 is controlled to oscillate. Therefore, in this case, since the power is supplied from the control means 3 to the regular lighting circuit 4, the supplied power is converted into a high frequency and supplied to the discharge lamp 9, and the discharge lamp 9 is lit. Since the charging / power failure detection circuit described later does not detect a power failure during normal use, the switching means 8 acts so as to connect the contacts of the switching portions 80 and 81 to 80a and 81a, respectively.
[0031]
In the emergency unit lighting 20, the power from the AC power supply 1 is first input to the charging / power failure detection circuit unit 5. In this power failure detection unit, a power failure (a state where the voltage input from the AC power supply 1 is 85% or less when the normal use is 100%) is not detected. The contacts of the battery switching unit 61 act so as to become 61a (A in FIG. 1), and the contacts of the switching units 80 and 81 of the switching means 8 act so as to connect to 80a and 81a, respectively (B in FIG. 1). ) Therefore, the battery 6 is in a charged state, and the emergency lighting circuit 7 is in a stopped state.
[0032]
Next, in an emergency, the emergency lighting unit 20 first switches the contact of the battery switching unit 60 to 61b when the charging / power failure monitoring unit 5 detects a power failure, and also switches the switching unit 80, The 81 contacts act as 80b and 81b, respectively. Then, when the power from the battery 6 is input to the emergency lighting circuit 7, the emergency lighting circuit 7 oscillates / high-frequency-converts, power is supplied to the discharge lamp 9, and the discharge lamp 9 is lit in an emergency.
[0033]
In the regular lighting unit 10, when the control means 3 detects that the voltage input to the control means 3 is below the reference value, the control means 3 forcibly stops the oscillation of the regular lighting circuit 4. Acts as follows. Therefore, the oscillation of the regular lighting circuit 4 is stopped when the output of the regular power supply is at least 85% as compared with the regular use.
[0034]
According to the present embodiment, when the output from the AC power supply 1 is at least 85% compared to the normal use, control is performed so that the oscillation of the regular lighting circuit 4 is forcibly stopped. Since the control means 3 is provided in the service lighting unit 10, each electric / electronic component constituting the service lighting circuit 4 even if the output from the emergency lighting circuit 7 is erroneously input to the service lighting circuit 4 in an emergency. Can suppress the occurrence of defects.
[0035]
In an emergency, the voltage is applied to only one contact of the pair of contacts 80a and 80b of the switching unit 80 or the pair of contacts 81a and 81b of the switching unit 81. The load is reduced, and the reliability of the switching means 8 can be improved.
[0036]
FIG. 2 is a perspective view showing an emergency lighting fixture 50 in an embodiment of the disaster prevention lighting fixture of the present invention.
[0037]
In the figure, 30 is an emergency lighting fixture body, and 40 is a lighting device for disaster prevention lighting in which a regular lighting unit 10 and an emergency lighting unit 20 are built.
[0038]
The emergency lighting fixture main body 19 is assumed to have a configuration of an emergency lighting fixture other than the emergency lighting device 40 such as a discharge lamp 9 and a socket 9a that are commonly used and emergency.
[0039]
The lighting device for disaster prevention 40 has the configuration shown in FIG.
[0040]
【The invention's effect】
According to the first aspect of the present invention, the discharge lamp; and the first variable frequency output high-frequency generator that turns on the discharge lamp by converting the output of the normal power supply to a high frequency; the output of the normal power supply is 85% or less. A second high-frequency generator that turns on the discharge lamp by converting the output of the emergency power supply to a high frequency; and the first high-frequency generator and the second high-frequency generator according to the state of the normal power supply A switching means for switching to one of the high frequency generators; and a monitoring means for monitoring the voltage of the normal power supply, wherein the monitoring means is set to a value higher than 85% of the normal power supply voltage of the normal power supply. When it is detected that the frequency falls below the reference value, the oscillation of the first high frequency generator is forcibly stopped, and the monitoring means causes the first high frequency generator to oscillate when the voltage of the common power supply is equal to or higher than the reference value. Control means to control ; By equipped with a, it is possible to suppress the cause even if the output from the second high-frequency generator by mistake to the first high-frequency generator is too long and the input first high-frequency generator is defective in emergency it can.
[0041]
In an emergency, the voltage is applied to only one of the switching points such as a relay, so that the load on the switching unit can be reduced and the reliability of the switching means can be improved.
[0042]
According to invention of Claim 2, it has the effect of Claim 1.
[Brief description of the drawings]
FIG. 1 is a circuit diagram showing a lighting device for disaster prevention lighting according to the present embodiment. FIG. 2 is a perspective view showing a disaster prevention lighting device according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... AC power source which is a normal power source, 3 ... Control means, 4 ... Normal lighting circuit which is a 1st high frequency generator, 7 ... Emergency lighting circuit which is a 2nd high frequency generator , 8 ... switching means, 9 ... discharge lamp, 40 ... lighting device for disaster prevention lighting, 50 ... emergency lighting equipment

Claims (2)

With a discharge lamp;
A variable output first high frequency generator that turns on the discharge lamp by converting the output of the utility power source to high frequency;
A second high frequency generator that turns on the discharge lamp by converting the output of the emergency power source to a high frequency when the output of the normal power source becomes 85% or less;
Switching means for switching the power supply to the discharge lamp to either the first high-frequency generator or the second high-frequency generator according to the state of the normal power supply;
Monitoring means for monitoring the voltage of the normal power supply, and when the monitoring means detects that the voltage of the normal power supply falls below a reference value set to a value higher than 85% of the normal use voltage of the normal power supply, the first means Control means for forcibly stopping the oscillation of the high frequency generator, and the monitoring means for controlling the first high frequency generator to oscillate when the voltage of the common power source is equal to or higher than the reference value;
And a lighting device for disaster prevention lighting. A lighting device body;
The lighting device for disaster prevention lighting according to claim 1 provided in the lighting device body;
A disaster prevention lighting device comprising:

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