JPH0963327A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system which can be used by a commercial AC power source at ordinary time and can also be used even at emergency time or the like when an earthquake or a fire occurs. SOLUTION: A battery 51, an inverter circuit 52 and a changeover switch SW3 are provided, and these are integrally constituted as a light emitting unit 12 together with a discharge lamp 53. The light emitting unit 12 is arranged so as to be mountable on and demountable from a main body 11, and a power source supply plug 25a to switch the changeover switch SW3 is arranged in the main body 11 so that a power source is supplied from the commercial AC power source side when the light emitting unit 12 is installed in the main body 11, and that a power source is supplied from the battery 51 side when the light emitting unit 12 is separated from the main body 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device which can be used at all times and can be used even in an emergency such as a power failure due to an earthquake or fire disaster.

[0002]

2. Description of the Related Art Conventionally, there is a flashlight as an illuminating device used in an emergency such as a power failure. A typical flashlight has a built-in battery and a light bulb, and is turned on or off by turning a switch on and off. In particular, as an emergency flashlight, it is usually hung on a bracket fixed to a wall surface, and when the flashlight is detached from the bracket, the switch is turned on and turned on automatically.

An emergency exit guide light provided in a public building or the like is always lit by a commercial AC power supply, and when a power failure occurs, it is switched to an internal battery and kept lit.

[0004]

In the above-mentioned conventional flashlight, it is extremely uneconomical to always use it as a lighting device. That is, when the flashlight is constantly used as a lighting device, the battery is consumed so much that the battery must be replaced or charged frequently, resulting in high cost.

The emergency exit guide light serves as a guide or a mark when escaping, does not brightly illuminate a passage or the like, and cannot be carried. Also,
A lighting device that is always used with a commercial AC power supply cannot be used during a power failure as a matter of course.

An object of the present invention is to provide a lighting device which can be used with a commercial AC power supply at all times and can be used even in an emergency such as an earthquake or a fire.

[0007]

An illumination device according to the invention of claim 1 has a main body, a discharge lamp, and a power switch, and when the power switch is on, the discharge lamp is turned on by a commercial AC power source. A lighting device configured to be turned on, comprising a battery, an inverter circuit driven by the battery for turning on the discharge lamp, and a changeover switch for switching a power supply for turning on the discharge lamp, They are integrally configured as a light emitting unit together with the discharge lamp, the light emitting unit is detachably attached to the main body, and the main body is provided with the light emitting unit when the light emitting unit is attached to the main body. Power is supplied from the commercial AC power supply side, and power is supplied from the battery side when the light emitting unit is detached from the main body. So it is supplied, the first operating means for switching the changeover switch is provided, and Te.

In the lighting device according to the invention of claim 2, the light emitting unit is provided with an operation switch for turning on and off the connection between the battery and the inverter circuit, and the light emitting unit is detached from the main body. Immediately after that, a second operation means is provided for making the operation switch switched to the ON side.

When the power source plug is connected to a commercial AC power source with the light emitting unit mounted on the main body and the power switch is turned on, the discharge lamp is turned on. When the power switch is turned off, the discharge lamp goes off. This is the normal use of the lighting device.

When the light emitting unit is detached from the main body in an emergency such as a power failure due to an earthquake or the like, the changeover switch is switched to the battery side, and the discharge lamp is turned on at the moment of detachment. In that state, by turning the operation switch on and off, it is possible to switch between turning on and off the discharge lamp. This is an emergency use method of the lighting device, and the light emitting unit is used as an emergency light. Further, even in normal times, the light emitting unit can be detached from the main body and used as a flashlight.

When the light emitting unit is attached to the main body again, even if the operation switch is in the OFF state immediately before, it is always switched to the ON state by the second operating means, and the discharge lamp is turned on according to the ON / OFF of the power switch. Or turn off. This returns to normal usage.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall external view of a lighting device 1 according to the present invention, FIG. 2 is a side view showing an enlarged light emitting unit 12, and FIG. 3 is a front view showing an enlarged light emitting unit 12. 4 is an electric circuit diagram of the lighting device 1, and FIG. 5 is a lighting device 1.
3 is a timing chart showing the relationship between the switch operation and the lamp lighting state.

In FIG. 1, the illuminating device 1 is composed of a main body 11 and a light emitting unit 12 detachably provided on the main body 11. The main body 11 includes a pedestal 21 and an arm 2.
2, 23, and a head portion 24. On the pedestal 21,
A power switch SW1 is attached, and a cord 26 and a power plug 27 for connecting to a commercial AC power source are connected and pulled out.

The arm 22 is fixed to the pedestal 21, and the arm 23 is rotatably connected to the arm 22.
The head portion 24 is rotatably connected to the arm 23.

As shown in FIGS. 2 and 3, the light emitting unit 12 is provided in a thin rectangular unit case 31.
The light guide plate 32 is attached to almost the entire lower surface thereof. A receiving portion 25 is rotatably provided on the head portion 24 of the main body 11. As shown in FIG. 2A, the receiving portion 2
When the light emitting unit 12 is rotated downward, the light emitting unit 12 is exposed to the outside from the head portion 24. Therefore, by inserting or pulling out the light emitting unit 12 into or from the receiving portion 25 in this state, the light emitting unit 12 is attached or detached. It can be performed.

As shown in FIG. 3, the unit case 31 includes an operation portion 41 of an operation switch SW2 which will be described later.
When the light emitting unit 12 is mounted on the receiving portion 25, the pin 25b provided on the receiving portion 25 presses against the slope of the operating portion 41 so that the operating portion 41 is slidable.
Is slid and moved, and the operation switch SW2 is turned on. Further, the unit case 31 is provided with a socket 42 for connecting to the power supply plug 25a provided in the receiving portion 25, and the light emitting unit 12 is provided.
When attached to the receiving portion 25, the power supply plug 25a
And electrodes of the socket 42 are connected.

In FIG. 4, the main body 11 is provided with a DC power supply device 28, the output of which is the power supply plug 2.
5a. The output of the DC power supply device 28 is DC 6V, for example. Therefore, when the power plug 27 is connected to a commercial AC power source and the power switch SW1 is turned on, a DC voltage is output from the power supply plug 25a.

The light emitting unit 12 includes the operation section 4 described above.
An operation switch SW2 that is turned on / off by 1, a changeover switch SW3 that is switched by inserting the power supply plug 25a into the socket 42, a battery 51, an inverter circuit 52, and a lamp 53 are mounted.

The operation switch SW2 is a light emitting unit 12
While being detached from the receiving portion 25, it is possible to freely switch on / off by operating the operating portion 41, but when attached to the receiving portion 25, the operating portion 41 slides by the pin 25b, and the operating switch is operated. SW
2 is always on. Therefore, immediately after the light emitting unit 12 is detached from the receiving portion 25, the operation switch SW2 is always switched to the ON side. The operation unit 41 corresponds to the second operation means in the present invention.

The changeover switch SW3 is for the light emitting unit 1.
2 is detached from the receiving portion 25, the socket 4
The second electrode 42b is switched so as to be connected to the electrode 42c, and in this state, the DC voltage of the battery 51 is supplied to the inverter circuit 52. When the light emitting unit 12 is attached to the receiving portion 25, the power supply plug 25a is switched to disconnect the electrode 42b and the electrode 42c, and at the same time, the electrodes of the power supply plug 25a and the electrodes 42a and 42b are respectively disconnected. The DC voltage from the DC power supply 28 is connected to the inverter circuit 5 by the connection.
2 is supplied. The power supply plug 25a corresponds to the first operating means in the present invention.

The battery 51 is, for example, a plurality of AAA dry cells connected in series so as to output a voltage similar to the voltage output from the DC power supply 28. The inverter circuit 52 is operated by the DC voltage from the DC power supply 28 or the battery 51 to generate a high AC voltage to generate the lamp 5
3 is turned on.

The lamp 53 is a small-sized cold cathode lamp, and is lit by starting and maintaining discharge by the high voltage from the inverter circuit 52. The illumination light linearly emitted from the lamp 53 is planarly radiated to the outside by the light guide plate 32 and illuminates the vicinity thereof.

Next, the relationship between the state of each switch and the lighting state of the lamp 53 will be described with reference to FIG. When the light emitting unit 12 is attached to the receiving portion 25, the power plug 27 is connected to a commercial AC power source and the power switch SW1 is turned on, the DC voltage from the DC power supply device 28 is supplied to the inverter circuit 52, and the lamp 53 is turned on. Light. When the power switch SW1 is turned off, the lamp 53 is turned off. This is a method of using the lighting device 1 in normal times.

When the light emitting unit 12 is detached from the receiving portion 25 in the event of a power failure such as an earthquake, the changeover switch SW3 is switched to the battery 51 side, and the lamp 53 is turned on at the moment of detachment. In this state, by operating the operation unit 41 to turn on / off the operation switch SW2, the lamp 53 can be switched on and off. This is a method of using the lighting device 1 in an emergency, and the light emitting unit 12 is used as an emergency light.
In addition, the light receiving unit 12 receives the receiving portion 2 even in normal times.
It is also possible to use it as a flashlight by removing from 5.

When the light emitting unit 12 is attached to the receiving portion 25 again, even if the operation switch SW2 is in the OFF state immediately before, it is always switched to the ON state, and the lamp 53 is turned on according to the ON / OFF of the power switch SW1. Or turn off. This returns to normal usage.

According to the lighting device 1 described above, it can be used as an ordinary table lamp in normal times and as an emergency light in an emergency. In addition, since commercial AC power is supplied during normal use, the battery 51 is not consumed and is economical.
In an emergency, since the lamp 53 is turned on at the moment when the light emitting unit 12 is detached from the receiving portion 25, the light emitting unit 12 can be operated in the darkness due to the power failure. Since the lighting device 1 of this example is used as an ordinary table lamp, its location can be easily recognized even in an emergency, so that there is no need to search around in an emergency. By the way, an emergency flashlight or the like is not used in normal times, so it is not possible to easily recognize its location in an emergency, and it is necessary to search for it. Further, the light emitting unit 12 has an operation switch SW2.
Since it can be turned on and off by using, it can be used as a normal flashlight, and the battery 51 is economical without being consumed unnecessarily.

Even if the light emitting unit 12 is mounted on the receiving portion 25 with the operation switch SW2 turned off, the operation switch SW2 is automatically turned on by the sliding movement of the operation portion 41 by the pin 25b. There is no problem in normal use and emergency use.

In the above embodiment, the light emitting unit 12
Although only one is provided in the lighting device 1, a plurality of light emitting units 12 may be provided. Further, one light emitting unit 12 described above and another light emitting unit fixed to the main body 11 may be provided, and the fixed light emitting unit may be used as the main illumination and the light emitting unit 12 may be used as the sub illumination. In that case, for example, the power switch SW1 may be used to switch between main, sub, and all off. In the lighting device 1,
Although the DC voltage is supplied from the main body 11 to the light emitting unit 12, the commercial AC power is supplied, and the lamp 53 is turned on in the light emitting unit 12 with or without conversion to the DC voltage. You may. A rechargeable secondary battery may be used as the battery 51.

The lighting device 1 described above is configured as a table lamp, but may be configured as a lighting device that is mounted or embedded in a wall, a ceiling, or a top plate of a bed. In addition, the structure, shape, material, circuit configuration, and the like of the lighting device 1 can be appropriately changed in accordance with the gist of the present invention.

[0030]

According to the first and second aspects of the present invention,
It can be used with a commercial AC power supply at all times and can be used even in an emergency such as an earthquake or fire. Moreover, since the lamp lights up at the moment when the light emitting unit is detached from the main body, there is no hesitation in operating the light emitting unit in the darkness due to the power failure.

According to the second aspect of the present invention, since the lamp can be turned on and off by the operation switch, it can be used as a normal flashlight, and the battery is economically unnecessary and does not unnecessarily consume. Moreover, even if the light emitting unit is attached to the main body with the operation switch turned off, the operation switch is automatically turned on by the second operation means, which may be used for subsequent normal use and emergency use. Absent.

[Brief description of drawings]

FIG. 1 is an overall external view of a lighting device according to the present invention.

FIG. 2 is an enlarged side view showing a light emitting unit.

FIG. 3 is a front view showing an enlarged light emitting unit.

FIG. 4 is an electric circuit diagram of the lighting device.

FIG. 5 is a timing chart showing the relationship between the operation of the switch of the lighting device and the lighting state of the lamp.

[Explanation of symbols]

 1 Lighting Device 11 Main Body 12 Light Emitting Unit 25a Power Supply Plug (First Operating Means) 25b Pin (Second Operating Means) 51 Battery 52 Inverter Circuit 53 Lamp (Discharge Lamp) SW1 Power Switch SW2 Operation Switch SW3 Change Switch

Claims (2)

[Claims] 1. A lighting device having a main body, a discharge lamp, and a power switch, wherein the lighting device is configured to light the discharge lamp by a commercial AC power source when the power switch is turned on. And an inverter circuit driven by the battery for lighting the discharge lamp, and a changeover switch for switching a power source for lighting the discharge lamp, which are integrally configured as a light emitting unit together with the discharge lamp. The light emitting unit is detachably provided to the main body, and the main body is supplied with power from the commercial AC power supply side when the light emitting unit is mounted on the main body. Turn off the selector switch so that power is supplied from the battery side when the light emitting unit is detached from the main body. First operating means is provided, to become Te lighting device according to claim to obtain. 2. The light emitting unit is provided with an operation switch for turning on / off the connection between the battery and the inverter circuit, and the operation switch is on immediately after the light emitting unit is detached from the main body. The illumination device according to claim 1, further comprising a second operation means for switching the display device to the above.