KR101368363B1 - Led illumination lamp - Google Patents

Abstract

The present invention relates to an LED lamp capable of being used as an internal lamp and a flash at night, preventing the loss of a cover, and controlling a color according to the preference of a user. The LED lamp comprises a power connection unit which receives and supplies common power supplied to the outside; a light emitting unit which is emitted by receiving the common power through the power connection unit; a charging unit which stores the common power supplied through the power connection unit; a control unit which controls the on or off of the light emitting unit and supplies power to the light emitting unit through the charging unit; a sensor unit which senses the movement of the LED lamp when the LED lamp is used as the flash; a body which comprises the light emitting unit, the charging unit, the control unit, and the sensor unit and comprises a sliding connection unit on a side; and a cover which comprises a sliding connection hole to be connected to the sliding connection unit of the body. [Reference numerals] (110) Power connection unit; (120) Control unit; (130) Charging unit; (140) Light emitting unit; (150) Sensor unit

Description

LED illumination device

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device to prevent the loss of the cover when used for indoor lighting in everyday times and when used as a fresh flash at night.

In general, various lighting devices are used to be installed in indoor or outdoor advertisements or signs to identify images at day or night. These lighting devices use filament bulbs, fluorescent lights, neon signs or LEDs (Light Emitting Diodes).

In particular, the lighting device using the LED has the advantage that the life of the LED is semi-permanent, inexpensive, and low power consumption, the use is increasing.

Here, LED refers to a light emitting diode device, and has advantages such as fast processing speed and low power consumption of LED semiconductors, and has been spotlighted as a next-generation strategic product due to its environmentally friendly and high energy saving effect.

The LED device is composed of p-type and n-type semiconductors, and when voltage is applied, electrons and holes are combined to emit energy corresponding to the bandgap of the semiconductor in the form of light. It is a kind of optoelectronic device.

Recently, various colors of LED have been developed to enable natural color display, and are being applied to various places such as outdoor large billboards, traffic lights, automobile dashboards, home appliances, neon replacement signs, medical equipment, warnings and induction lamps.

In addition, the LED lighting device is in the spotlight as a lighting fixture due to the low power consumption of about 10% to 15%, semi-permanent life of more than 50,000 hours, and environmentally friendly characteristics compared to conventional incandescent or fluorescent lamps.

However, the LED lighting apparatus according to the prior art is attached to the ceiling or wall surface and is turned on by receiving commercial power, and was unable to function as a light when power is cut off due to a power failure.

In addition, in order to prepare for such an emergency situation, the emergency flash has to be stored separately so that there is an inconvenience to find the flash in an emergency situation.
Prior Art Documents Publication No. 2003-0018524

The present invention is to solve the problems as described above to prevent the loss of the cover provided for use as a normal indoor lighting and to use a fresh flash when going out at night, and easy to adjust the color according to the user's taste LED lighting device The purpose is to provide.

LED lighting device according to the present invention for achieving the above object is used in the usual indoor lighting and fresh flash at night out, the power connection for supplying the commercial power supplied to the outside and supplied; A light emitting unit that receives commercial power through the power connection unit and emits light, a charging unit storing commercial power supplied through the power connection unit, and controls the ON or OFF of the light emitting unit and supplies power to the light emitting unit through the charging unit in an emergency A control unit for controlling the supply, a sensing sensor unit for detecting the movement of the LED lighting device when used as a flash, a main body having a built-in sliding portion on the side, the light emitting unit, the charging unit, the control unit and the sensing sensor unit, sliding of the main body And a cover having a sliding fastening hole to be fastened to the fastening part. The.

The LED lighting apparatus according to the present invention has the following effects.

First, it can be used as a normal room lighting and a fresh flash when going out at night.

Second, by using the cover to cover the power connection to the body when using a fresh flash at night, the risk of loss can be prevented in advance.

Third, the consumer can freely adjust the transmittance and the color of the light by covering the diffusion cover on the transparent cover according to the needs of the consumer.

Fourth, the transparent material of the cover surrounding the LED can further increase the transmittance of the LED.

Fifth, the cover that irradiates light when the LED emits light is made of transparent material so that the transmittance is 70%, 80%, According to the specification of the transmittance desired by the consumer, such as 90%, a diffuser cover can be manufactured to cover a cover made of transparent material, thereby producing a customized LED lighting lamp.

1 is a configuration diagram showing an LED lighting apparatus according to a first embodiment of the present invention
2 is a configuration diagram showing an LED lighting apparatus according to a second embodiment of the present invention
Figure 3 is a side view showing the external appearance including a cover when using the LED lighting apparatus according to the first and second embodiments of the present invention as a flash
4 is a view showing a form in which the cover is fastened to the side of the main body of FIG.
5 is an exploded perspective view illustrating the LED lighting apparatus of FIG. 3
FIG. 6 is a perspective view schematically illustrating a light emitting unit configured inside the main body of FIG. 3. FIG.
FIG. 7 is a perspective view schematically illustrating a circuit board of white and red light emitting units formed in the main body of FIG. 2; FIG.

Hereinafter, an LED lighting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

1 is a configuration diagram showing an LED lighting apparatus according to a first embodiment of the present invention.

As shown in FIG. 1, the LED lighting apparatus 100 according to the first embodiment of the present invention includes a power connection unit 110, a control unit 120, a charging unit 130, a light emitting unit 140, and a sensing sensor unit ( 150).

Here, the power connection unit 110 serves to turn on the light emitting unit 140 by receiving a commercial power supplied to the outside, in the embodiment of the present invention is an AC voltage of 100 ~ 245VAC is input.

The commercial power supplied through the power connection unit 110 turns on the light emitting unit 140 and charges the charging unit 130. The commercial power supplied through the power connection unit 110 emits light. Simultaneously supplied to the unit 140 and the charging unit 130 may be turned on and charging.

In addition, when the commercial power supplied through the power connection unit 110 is turned on only the light emitting unit 140, when the light emitting unit 140 is not lit, it may be supplied to the charging unit 130 to proceed with charging.

Meanwhile, the commercial power supplied from the power connection unit 110 supplies 7 to 8 W of power when the light is charged with the light emitting unit 140 turned on, and when only the light emitting unit 140 by commercial power is used, 3.5 to 4W of power is supplied, and the supplied power is transferred to the charging unit 130.

The controller 120 controls ON / OFF of the light emitting unit 140. In other words, when the light emitting unit 140 is turned on through commercial power supplied from the power connection unit 110 and the light emitting unit 140 is turned off by an external operation, the light emitting unit receives the OFF signal. 140) OFF.

In addition, the controller 120 controls to supply power to the light emitting unit 140 through the charging unit 130 in an emergency such as a power failure.

The controller 120 detects movement from the monitoring sensor unit 150 to turn on / off the light emitting unit 140.

That is, the detection sensor unit 150 detects the shaking of the LED lighting device 100 when the LED lighting device 100 is separated from the socket and used as a fresh flash at night. Here, shaking refers to when a certain pressure or more is applied.

Accordingly, when the monitoring sensor unit 150 uses the LED lighting device 100 separated from the socket as a flash, the monitoring sensor unit 150 detects a movement of the LED lighting device 100 and sends it to the control unit 120. The light emitting unit 140 is turned on / off by detecting the number of movements from the detection sensor unit 150.

For example, if the LED lighting device 100 is shaken twice, the detection sensor unit 150 detects this and sends it to the control unit 120, and recognizes that the control unit 120 has moved twice. Turn 140 on. When the LED lighting device 100 is shaken twice, the detection sensor unit 150 detects this and sends it to the controller 120, and recognizes that the controller 120 has moved twice. OFF.

At this time, the number of shaking of the LED lighting device 100 is described two times in the embodiment of the present invention, the number can be arbitrarily adjusted by the designer or user.

For example, a separate ON / OFF switch is attached in case of a flash used in the nighttime out, and the user turns on the flashlight by the operation of the switch. However, in the present invention, Off switch is not provided and the power is turned on / off by detecting the shake.

The controller 120 detects when commercial power is not supplied to the LED lighting apparatus 100 and supplies power stored in the charging unit 130 to the light emitting unit 140 to emit light.

On the other hand, the control unit 120 automatically supplies power stored in the charging unit 130 to the light emitting unit 140 after 5 seconds when commercial power is not supplied to emit light. At this time, the time of 5 seconds is not limited and can be adjusted as needed.

The charging unit 130 is connected to the power connection unit 110 serves to receive and store commercial power.

The control unit 120 serves to drive the light emitting unit 140 lighting operation, in the embodiment of the present invention when supplying a voltage of 4.2V and a current of 1200mA, and performs the charging and lighting operation at the same time, 5.02 It supplies power of W and supplies 2.51W of power when only the lighting operation is performed.

The controller 120 controls the charging operation of the charging unit 130 and the lighting operation of the light emitting unit 140, and is preferably driven by a constant current MICOM (not shown) circuit.

The charging unit 130 serves to charge by receiving power from a commercial power supply, and serves to supply the charged power to the light emitting unit 140 in an emergency, the charging unit 130 according to the present invention is overcharged and It further comprises a protection circuit unit (not shown) to prevent the occurrence of over-discharge.

The charging unit 130 uses a lithium ion battery, and receives a voltage of 4.2V and a current of 6000 mA from the power connection unit 110, and the charging time is about 4 hours.

The light emitting unit 140 receives the commercial power from the power connection unit 110 or the power charged from the charging unit 130 and serves to turn on in accordance with a portable flash drive when indoor lighting or at night, and the light emitting unit ( 140 uses a plurality of LED elements, and when the light emitting unit 140 is turned on, a voltage of 3.2V, a current of 6000mA, and a power of 1.92W are required.

2 is a configuration diagram showing an LED lighting apparatus according to a second embodiment of the present invention.

In the LED lighting apparatus 200 according to the second embodiment of the present invention, as shown in FIG. 2, the light emitting unit 140 of the first embodiment is separated into a white light emitting unit 240 and a red light emitting unit 250. The same is true except that the red light emitting unit 250 is blinked and driven in an emergency.

In this case, the power connection unit 210 receives a commercial power supplied from the outside to selectively light the white light emitting unit 240 or the red light emitting unit 250.

The commercial power supplied through the power connection unit 210 turns on the white light emitting unit 240 and the charging of the charging unit 230 is performed. The commercial power supplied through the power connection unit 210 is Simultaneously supplied to the white light emitter 240 and the charging unit 230 may be turned on and charging.

In addition, when the commercial power supplied through the power connection unit 210 turns on only the white light emitting unit 240 and the white light emitting unit 240 is not lit, it may be supplied to the charging unit 230 to perform charging. have.

Meanwhile, the commercial power supplied from the power connection unit 210 supplies 7 to 8 W of power when the white light emitting unit 240 is turned on and is charged, and only the white light emitting unit 240 by commercial power is used. Supplying power of 3.5 ~ 4W, the supplied power is delivered to the charging unit 230.

The controller 220 controls ON / OFF of the white light emitter 240 or the red light emitter 250. In other words, when the white light emitting unit 240 is turned on through the commercial power supplied from the power connection unit 210 and the white light emitting unit 240 is turned off by an external operation, the white light receiving unit 240 receives the OFF signal. The light emitter 240 is turned off. At this time, the red light emitting unit 250 is always in an OFF state without being turned on.

In addition, the controller 220 controls the white light emitting unit 240 to turn off and turn on only the red light emitting unit 250 in an emergency such as a fire, and blinks at a predetermined time interval.

In general, the controller 220 turns on the white light emitter 240 and turns off the white light emitter 240 and turns on only the red light emitter 250 when an emergency such as a fire occurs. By causing the red light emitting unit 250 to blink at a predetermined time, it is possible to quickly propagate an emergency situation.

Meanwhile, the controller 220 controls to selectively supply power to the white light emitting unit 240 or the red light emitting unit 250 through the charging unit 230 during a power failure.

That is, when commercial power is not supplied through the power connection unit 210 due to fire or power failure, the controller 220 controls the charging unit 230 to control the white light emitting unit 240 or the red light emitting unit 250. By turning on, you can respond quickly to disasters.

The controller 220 detects a movement from the monitoring sensor unit 260 to turn on / off the white light emitting unit 240.

That is, the detection sensor unit 260 detects the shaking of the LED lighting device 200 when the LED lighting device 200 is separated from the socket and used as a fresh flash at night. Here, shaking refers to when a certain pressure or more is applied.

Therefore, the monitoring sensor unit 260 detects the movement of the LED lighting device 200 when sending the LED lighting device 200 separated from the socket as a flash when going out at night, and sends it to the control unit 220, the control unit ( 220 detects the number of movements from the detection sensor unit 260 and turns on / off the white light emitting unit 240.

For example, when shaking the LED lighting device 200 twice, the detection sensor unit 260 detects this and sends it to the control unit 220, and recognizes that the control unit 220 has moved twice. Turn on the 240. When the LED lighting device 200 is shaken twice, the detection sensor unit 260 detects it and sends it to the controller 220, and recognizes that the controller 220 has moved twice. OFF.

At this time, the number of shaking of the LED lighting device 200 is described two times in the embodiment of the present invention, the number can be arbitrarily adjusted by the designer or user.

For example, a separate ON / OFF switch is attached in case of a flash used in the nighttime out, and the user turns on the flashlight by the operation of the switch. However, in the present invention, Off switch is not provided and the power is turned on / off by detecting the shake.

On the other hand, in the case of using the LED lighting device 200 of the present invention as a flash when shaken three times to switch to emergency lighting can be quickly propagated to the outside by emergency only by turning on the red light emitting unit 250.

The control unit 220 detects when commercial power is not supplied to the LED lighting device 200 and supplies power stored in the charging unit 230 to the white light emitting unit 240 or the red light emitting unit 250 to emit light. do.

On the other hand, the control unit 220 automatically supplies the power stored in the charging unit 230 to the white light emitting unit 240 after 5 seconds when the commercial power is not supplied when the indoor lighting. At this time, the time of 5 seconds is not limited and can be adjusted as needed.

The charging unit 230 is connected to the power connection unit 210 serves to store and receive commercial power.

In the embodiment of the present invention, the white light emitting unit 240 supplies a voltage of 4.2V and a current of 1200mA, and simultaneously performs charging and lighting operations, and supplies 5.02W of power and performs only lighting operations. It supplies 2.51W of power.

The controller 220 controls the charging operation of the charging unit 230 and the lighting operation of the white light emitting unit 240, and is preferably driven by a constant current MICOM (not shown) circuit.

The charging unit 230 serves to charge by receiving power from a commercial power supply, and serves to supply the charged power to the white light emitting unit 240 in an emergency, the charging unit 130 according to the present invention is overcharged And a protection circuit unit (not shown) for preventing occurrence of over discharge.

The charging unit 230 uses a lithium ion battery, and receives a voltage of 4.2V and a current of 6000 mA from the power connection unit 210, and the charging time is about 4 hours.

The white light emitting unit 240 receives the commercial power from the power connection unit 210 or the power charged from the charging unit 230 and serves to light up according to a portable flash drive when going out at night or at night. The unit 240 uses a plurality of LED elements, and when the white light emitting unit 240 is turned on, a voltage of 3.2V, a current of 6000mA, and a power of 1.92W are required.

Meanwhile, the white light emitter 240 is configured to emit white light using a white LED or through an RGB LED.

The red light emitting unit 250 is made of a red LED element to be flashed to emit light in an emergency under the control of the controller 220 to quickly propagate an emergency situation.

Figure 3 is a side view showing the external appearance including a cover when using the LED lighting apparatus according to the first and second embodiments of the present invention as a flash.

As shown in FIG. 3, the LED lighting apparatus according to the present invention includes a power connection part 110, a main body 310, a handle part 320, a cover 330, and a cover 340.

Here, the power connection unit 110 is a part that is screwed to the socket (not shown) attached to the ceiling or the wall to supply commercial power.

The main body 310 is connected to the power connection unit 110 and 210 and the control unit 120 and 220, the charging unit 130 and 230, the light emitting unit 140 (the white light emitting unit 240, the red light emitting unit 240) illustrated in FIGS. 1 and 2. 250) and detection sensors 150 and 260 are built in.

The body 310 is made of a plastic material, the surface is a plurality of irregularities are formed at regular intervals along the longitudinal direction.

The reason why the plurality of uneven structures are formed on the surface of the main body 310 is to smoothly naturally cool the heat generated when the light emitting part 140 inside the main body 310 emits light.

On the other hand, in the embodiment of the present invention has been described that the configuration of the main body 310 made of a plastic material, it can be made of a metal material such as aluminum and the surface formed to have an uneven structure to maximize the cooling efficiency.

A slide fastening part 311 is formed at a side of the main body 310, and the cover 340 is slidingly fastened to the slide fastening part 311.

That is, when using the LED lighting device (100,200) according to an embodiment of the present invention as the room lighting, the cover 340 is separated from the power connection (110, 210) and stored, the user carelessly lost the cover 340 It has a risk. Accordingly, the cover 340 is fixed to the side of the main body 310 to prevent the loss of the cover 340, and the cover 340 is used as a fresh flash when going out at night. Can be used separately from

The handle 320 is configured to be integral with or separate from the main body 310, and is configured to be held by the user when going out at night with the power connection parts 110 and 210.

The cover 330 diffuses the emitted light when the light emitting units 140, 240, and 250 configured inside the main body 310 emit light, and emits the light to the outside.

The cover 330 is made of a transparent material or an opaque material, made of a variety of colors to enable the consumer to emit a variety of colors when the light emitting unit 140, 240, 250 as necessary to detachable to the main body 310 It is composed.

The cover 330 has a semicircular shape having a constant curvature to widen the light diffusion area.

 Here, the cover 330 is composed of a transparent cover 331 and the diffusion cover 332.

The diffusion cover 332 is made of an opaque material, it is configured to be detachable on top of the transparent cover 331 according to the needs of the consumer. In addition, the diffusion cover 332 has a variety of colors so that the consumer can emit a variety of colors when the light emitting unit 140, 240, 250 as needed.

The transparent cover 331 for irradiating light to the outside when the light emitting unit 140, 240, 250 emits light to increase the transmittance and to prevent the dot of the light emitting unit 140, 240, 250 from being visible, according to the consumer's option The diffusion cover 332 may be manufactured according to the specification of the transmittance desired by the consumer, such as 70%, 80%, 90%, and configured on the transparent cover 331 made of a transparent material to manufacture a customized LED lighting lamp.

Accordingly, consumers can purchase the diffuser cover 332 as an option in consideration of the surrounding environment when installing the LED lighting device, and select the specification of the light having a wider width by using a diffuser cover suitable for the desired color temperature value or the diffusion rate.

Although the transparent cover 331 has been described as being made of a transparent material, the present invention is not limited thereto, and the transparent cover 331 may be formed of a translucent member for correcting a transmission amount of the light source irradiated from the light emitting unit 140. By transmitting the direct light through the transparent cover 331 formed of a translucent member, more natural and soft lighting is possible, thereby reducing fatigue of the user's eyes.

The transparent cover 331 is made of a synthetic resin or glass, the synthetic resin is any one of acrylic, PE, PVC, polycarbonate, the light diffusion is mixed with the synthetic resin.

The cover 340 is caught by the user's hand together with the handle 320 while covering the power connection (110,210) when using the LED lighting device (100,200) according to the present invention as a fresh flash at night.

The inside of the cover 340 is a screw is formed in the same way as the screw of the power connection (110,210) is screwed to the power connection (110,210).

Meanwhile, the cover 340 may be fixed by being hooked to the main body 310 while covering the power connection parts 110 and 210.

The side surface of the cover 340 is configured in the slide fastening hole 341 so as to be engaged with the sliding fastening portion 311 formed on the side of the main body 310. The sliding fastening part 311 formed at the side of the main body 310 has a structure protruding to a predetermined height, and the sliding fastening hole 341 is inserted into the sliding fastening part 311 and fastened to the main body 310. The cover 340 is attached to the side of the.

Therefore, when the LED lighting apparatus (100,200) according to the present invention is attached to the ceiling or the wall and used as indoor lighting, the cover 340 does not need to be stored elsewhere and is used while attached to the main body 310 while going out at night. When used as a fresh flash can be removed by fastening the cover 340 to the power connection (110,210).

In addition, in the case of using the bright room lighting, the cover 330 can be used by separating the diffusion cover 332, and when various colors are required, the user can adopt the diffusion cover 332 according to the user's taste.

FIG. 4 is a view illustrating a form in which a cover is fastened to a side of the main body of FIG. 3, and FIG. 5 is an exploded perspective view illustrating the LED lighting apparatus of FIG. 3.

As shown in FIGS. 4 and 5, a sliding fastening part 311 is formed on one side of the main body 310 so as to protrude to a predetermined height, and the cover 340 is inserted to insert the sliding fastening part 311. On the surface of the sliding fastening hole 341 having a predetermined depth is formed. In this case, the sliding fastening part 311 and the sliding fastening hole 341 are formed to correspond to each other.

FIG. 6 is a perspective view schematically illustrating a light emitting unit configured inside the main body of FIG. 3.

As shown in FIG. 6, the light emitting unit 140 is configured by arranging a plurality of LEDs 142 at regular intervals on the PCB substrate 141. In this case, the PCB substrate 141 may use a metal PCB substrate such as aluminum to absorb heat generated when the LED 142 emits light more quickly and release the same to the outside.

FIG. 7 is a perspective view schematically illustrating a circuit board of white and red light emitting units formed in the main body of FIG. 2.

As shown in FIG. 7, the white light emitting units 140 are arranged at regular intervals on the PCB substrate 141. The red light emitting unit 150 is arranged between a portion of the white light emitting unit 140 on the PCB substrate 141.

The PCB substrate 141 may absorb the heat generated when the LED 142 emits light more quickly by using a metal PCB substrate such as aluminum, and release the heat to the outside.

The number of the red light emitting parts 150 arranged in a part between the white light emitting parts 140 may be any number as long as the number does not interfere with the room lighting.

When the white light emitting unit 140 is turned on in normal indoor lighting, the red light emitting unit 150 is turned off, and in the event of an emergency such as a fire, the red light emitting unit 150 is turned on to flash and the white light emitting unit is turned on. The unit 140 is turned off.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Will be apparent to those of ordinary skill in the art.

110: power connection unit 120: control unit
130: charging unit 140: white light emitting unit
150: red light emitting unit 160: detection sensor unit
310: main body 320: handle portion
330: cover 340: cover

Claims (8)

In the LED lighting device that can be used for indoor lighting everyday and fresh when going out at night,
A power connection unit receiving and supplying commercial power supplied from the outside;
A light emitting unit which emits light by receiving commercial power through the power connection unit;
A charging unit for storing commercial power supplied through the power connection unit;
A control unit for controlling ON or OFF of the light emitting unit and controlling power supply to the light emitting unit through the charging unit in an emergency;
Detection sensor unit for detecting the movement of the LED lighting device when used as a flash,
A main body having the light emitting part, the charging part, the control part, and the sensing sensor part and having a sliding fastening part on a side thereof;
LED lighting device comprising a cover having a sliding fastening hole to be fastened to the sliding fastening portion of the main body. The LED lighting apparatus of claim 1, wherein the controller turns the light emitting unit ON or OFF according to the number of movements of the detection sensor unit. The LED lighting apparatus of claim 1, wherein the control unit emits the light emitting unit through the charging unit 5 seconds after a power failure. The light emitting unit of claim 2, wherein the detection sensor unit detects the shaking of the LED lighting apparatus twice and sends it to the controller to turn on the light emitting unit, and detects the shaking of the LED lighting apparatus twice and sends it to the control unit. LED lighting apparatus characterized in that the OFF. The LED lighting apparatus of claim 1, wherein the main body is made of a plastic or metal material having a plurality of uneven structures on its surface. The LED lighting apparatus of claim 5, further comprising a handle unit configured to be integrated with the main body or separated to be held by a user's hand when going out at night. delete The method of claim 1, wherein the light emitting portion
A white light emitting unit which emits light by receiving commercial power through the power connection unit;
Arranged between a part of the white light emitting portion and comprises a red light emitting portion that is flashing light receiving commercial power through the power connection in an emergency,
The control unit may turn on or off the white light emitting unit or the red light emitting unit according to the number of movements of the sensing sensor unit, and turn off the white light emitting unit and turn on the red light emitting unit in an emergency such as a fire.

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